HomeMy WebLinkAboutPA2021-260_20220207_WQMP_11-30-21Water Quality
Management Plan
(WQMP)
Project Name:
Newport Beach Country Club
Former Address: 1602 East Coast Highway
New Address: 5, 6, 7, 8, 9, 10, & 11 Clubhouse Drive
Newport Beach, CA 92660
Prepared for:
Golf Realty Fund
One Upper Newport Plaza
Newport Beach, California 92660
(949) 251-2025
Prepared by:
Land Strategies
Engineer:Roy Roberson, P.E. Registration No.: 44160
9241 Irvine Blvd, Suite 100
Irvine, CA 92618
(949) 580-3000
Prepared: 6/30/2010
1st Revision: 11/14/2018
2nd Revision: 07/10/2019
3rd Revision: 11/30/2021
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Owner’s Certification
Project Owner’s Certification
Permit/Application No. Grading Permit No.
Tract/Parcel Map No. Parcel 2, PM No. 94-
102 Building Permit No.
CUP, SUP, and/or APN (Specify Lot Numbers if Portions of Tract) APN 442-011-35, 442-
011-62, 442-011-63
This Water Quality Management Plan (WQMP) has been prepared for Golf Realty Fund by
Land Strategies. The WQMP is intended to comply with the requirements of the local NPDES
Stormwater Program requiring the preparation of the plan.
The undersigned, while it owns the subject property, is responsible for the implementation of
the provisions of this plan and will ensure that this plan is amended as appropriate to reflect
up-to-date conditions on the site consistent with the current Orange County Drainage Area
Management Plan (DAMP) and the intent of the non-point source NPDES Permit for Waste
Discharge Requirements for the County of Orange, Orange County Flood Control District and
the incorporated Cities of Orange County within the Santa Ana Region. Once the undersigned
transfers its interest in the property, its successors-in-interest shall bear the aforementioned
responsibility to implement and amend the WQMP. An appropriate number of approved and
signed copies of this document shall be available on the subject site in perpetuity.
Owner: Robert O Hill
Title Partner
Company Golf Realty Fund
Address One Upper Newport Plaza, Newport Beach, CA 92660
Email roh@golfrealtyfund.com
Telephone # (949) 251-2025
Signature Date
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Contents Page No.
Section I Discretionary Permit(s) and Water Quality Conditions ..................................... 3
Section II Project Description .......................................................................................... 4
Section III Site Description ........................................................................................... 10
Section IV Best Management Practices (BMPs) ............................................................. 12
Section V Inspection/Maintenance Responsibility for BMPs .......................................... 24
Section VI Site Plan and Drainage Plan ......................................................................... 26
Section VII Educational Materials .................................................................................. 27
Attachments
Attachment A . ................................................................................. Educational Materials
Attachment B . ............................................................................................ Exhibits/Maps
Attachment C . .................................................................................. TGD Reference Maps
Attachment D . ................................................ DCV and Water Quality Credit Calculations
Attachment E . ................................................... Fact Sheets/Operation and Maintenance
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section I
NBCC WQMP 20190710.docx Page 3
Section I Discretionary Permit(s) and
Water Quality Conditions
Provide discretionary permit and water quality information. Refer to Section 2.1 in the Technical
Guidance Document (TGD) available from the Orange County Stormwater Program (ocwatersheds.com).
Project Infomation
Permit/Application No. Tract/Parcel Map No. Parcel 2, PM No.
94-102
Additional Information/
Comments:
This project is the redevelopment of portions of existing paved tennis
courts and parking lots into less intense impervious land cover
(residential and resort uses).
Water Quality Conditions
Water Quality
Conditions
(list verbatim)
Watershed-Based Plan Conditions
Provide applicable
conditions from watershed -
based plans including
WIHMPs and TMDLS.
The Lower Newport Bay has TMDLs for the following pollutants;
Metals, Toxics, Nutrients, Pathogens (Fecal Coliform Bacteria),
Pesticides/Priority Organics, and Sediment.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 4
Section II Project Description
II.1 Project Description
Provide a detailed project description including:
• Project areas;
• Land uses;
• Land cover;
• Design elements;
• A general description not broken down by drainage management areas (DMAs).
Include attributes relevant to determining applicable source controls. Refer to Section 2.2 in the TGD
for information that must be included in the project description.
Description of Proposed Project
Development Category
(Verbatim from WQMP):
6. Parking lots 5,000 square feet or more including associated drive aisle,
and potentially exposed to urban stormwater runoff. A parking lot is
defined as a land area or facility for the temporary parking or storage of
motor vehicles used personally, for business, or for commerce.
8. All significant redevelopment projects, where significant
redevelopment is defined as the addition or replacement of 5,000 or more
square feet of impervious surface on an already developed site.
Redevelopment does not include routine maintenance activities that are
conducted to maintain original line and grade, hydraulic capacity,
original purpose of the facility, or emergency redevelopment activity
required to protect public health and safety.
Project Area (ft2): 303,980 Number of Dwelling Units: 27
Bungalows, 5 Villas, 1 clubhouse
SIC Code: 1799, 7997
Narrative Project
Description:
The Newport Beach Country Club (NBCC) is located within the 145 acre
(approximate area) Newport Beach Country Club Planned Community
(NBCCPC) located within the City of Newport Beach, California. The
NBCCPC includes the existing Tennis Club and Golf Club known as
Newport Beach Country Club. It is generally bordered by Pacific Coast
Highway to the south, Jamboree Road to the west, Santa Barbara
Avenue and Newport Center Drive to the north, and Corporate Plaza
West to the east and south.
The existing Tennis Club and the surrounding tennis courts will be
improved and replaced with a new tennis clubhouse, a center court, 27
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 5
bungalows, and 5 semi-custom villas. The existing Golf Club will be
improved with a replaced with a new golf clubhouse, parking lot, and a
new pool.
The Tennis Clubhouse & Center Court:
The new Tennis Clubhouse will contain state-of-the-art locker rooms
with steam rooms. 6 of the existing tennis courts will remain, and the
addition of the new center tennis stadium court will result in a total of 7
tennis courts. A new pool will also be included as part of the
recreational improvements. The final plans will specify California
materials and the use of California artisans.
The Bungalows:
The Bungalows will be located on a portion of the existing tennis courts
and will consist of 27 guest rental units, patterned after Casa Palmero in
Pebble Beach, California and Rancho Valencia Tennis Club in Rancho
Santa Fe, California. The Bungalows will be rented on a short term basis
to members of The Tennis Club and The Golf Club and their respective
guests and to tennis players taking tennis clinics, golfers taking golf
clinics and as a venue for association meetings and/or educational
retreats. In addition, there will be a reciprocal arrangement with other
tennis, golf and beach clubs allowing their members to stay at The
Bungalows. Accommodations will also be provided to tour pros and
celebrities participating in the Toshiba Classic at The Golf Club, or the
Davis Cup or other events at The Tennis Club. Ancillary uses include a
concierge office and guest center, swimming pool, fitness center, spa
(massage and treatment rooms), and a small bar serving juices,
smoothies, etc.
The Villas:
The Villas consist of 5 semi-custom homes located on a portion of the
existing tennis courts and are adjacent to The Tennis Club and the 9th
green. The Villa homes have a classical California Mediterranean style
reminiscent of the Wallace Neff homes built in the West Side areas of
Los Angeles, San Marino, and Pasadena in the 1920s, ‘30s and ‘40s.
Although The Villa homes are all very similar in materials and design
theme, each will be unique in some way from the other, and each will
have different interior finishes and detailing and, to an extent, be
customized to the buyer’s specifications.
Parking:
Consistent with the development standards contained in the NBCCPC,
the following parking is provided within the PCD.
Tennis Clubhouse Parking: Consists of 68 parking stalls.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 6
Bungalow Parking: 41 parking stalls for the 27 short-term rental units.
Weekend & Holiday Parking: Approximately 556 stalls within
Corporate Plaza West are available on weekends and holidays through
a recorded parking easement, with 188 of these parking stalls available
after office business hours.
The Villas Parking: The Villas and the additional Golf Bungalow
adjacent to the West Villas have access streets with covered and
uncovered parking stalls.
Project Area
Pervious Impervious
Area (acres) Percentage Area (acres) Percentage
Pre-Project Conditions 1.03 14.8% 6.00 85.2%
Post-Project Conditions 1.75 25.1% 5.23 74.9%
Drainage
Patterns/Connections
The proposed drainage pattern will bisect the site into two halves, the
northwest drainage area, Catchment “A”, and the southeast drainage
area, Catchment “B”. A proposed 30” RCP storm drain system will
convey Catchment Area “A” southerly into an existing 69” RCP storm
drain system owned by the City of Newport Beach. Catchment Area “B”
is collected by a proposed 24” RCP that runs westerly into the
aforementioned 30” RCP.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 7
II.2 Potential Stormwater Pollutants
Determine and list expected stormwater pollutants based on land uses and site activities. Refer to
Section 2.2.2 and Table 2.1 in the TGD for guidance.
Pollutants of Concern
Pollutant
Circle One:
E=Expected to
be of concern
N=Not Expected
to be of concern
Additional Information and Comments
Suspended-Solid/ Sediment E
Nutrients E
Heavy Metals E
Pathogens (Bacteria/Virus) E
Pesticides E
Oil and Grease E
Toxic Organic Compounds E
Trash and Debris E
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 8
II.3 Hydrologic Conditions of Concern
Determine if streams located downstream from the project area are determined to be potentially
susceptible to hydromodification impacts. Refer to Section 2.2.3.1 in the TGD for NOC.
No – Show map
Yes – Describe applicable hydrologic conditions of concern below. Refer to Section 2.2.3 in the
TGD.
The conveyance of the on-site storm water runoff is through pipe networks, there are no natural
channels. The project discharges from the pipes directly into the Pacific Ocean and therefore has no
potential to have Hydrologic Conditions of Concern (HCOC) per Orange County Model WQMP
(dated May 19, 2011).
All downstream conveyance channels that will receive runoff from the project are engineered,
hardened and regularly maintained to ensure design flow capacity, and no sensitive stream habitat
areas will be affected.
Additional references include: Attachment B (Exhibits/Maps) and Attachment C (TGD Reference
Maps)
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 9
II.4 Post Development Drainage Characteristics
Describe post development drainage characteristics. Refer to Section 2.2.4 in the TGD.
The addition of two proposed storm drain lines will connect to an existing 69” RCP storm drain
system located south of the site. This existing storm drain system is conveyed directly into the
Pacific Ocean at Newport Bay, approximately 5,450 feet directly southwest of the site.
Refer to Attachment B for reference maps.
II.5 Property Ownership/Management
Describe property ownership/management. Refer to Section 2.2.5 in the TGD.
Golf Realty Fund currently owns the property. After development, a homeowners or property
owners association will be established to maintain the stormwater facilities.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 10
Section III Site Description
III.1 Physical Setting
Fill out table with relevant information. Refer to Section 2.3.1 in the TGD.
Planning Area/
Community Name Newport Beach Country Club
Location/Address
5, 6, 7, 8, 9, 10 & 11 Clubhouse Drive
Newport Beach, CA 92660
Land Use Mixed Use Horizontal 3, Parks and Recreation
Zoning Planned Community
Acreage 6.98
Predominant Soil Type Type D
III.2 Site Characteristics
Fill out table with relevant information and include information regarding BMP sizing, suitability, and
feasibility, as applicable. Refer to Section 2.3.2 in the TGD.
Precipitation Zone 0.7 in/hr of the 85th Percentile Rainfall Zone
(Figure XVI.1 Orange County Rainfall Zones Map of the TGD)
Topography
Topography at the site is relatively flat-lying, with up to 13 feet of
relief across the entire site. Elevation ranges from 118 feet MSL at the
northeast corner to 100 feet MSL at the southwest corner.
Drainage
Patterns/Connections
The northern part of the site consisting of the tennis courts and club
buildings sheet flows southerly onto the parking lot at approximately
0.7% slope. From the parking lot, the drainage flows west and
southwest off-site at about a 1.6% slope.
Soil Type, Geology, and
Infiltration Properties
Due to the Type D soils onsite infiltration was not evaluated on this
site.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 11
Site Characteristics (continued)
Hydrogeologic
(Groundwater)
Conditions
Groundwater was not encountered during subsurface investigation
on the site. However groundwater was encountered at adjacent
property on the southwest at an elevation of approximately 79 feet
MSL (up to 21 feet of on-site finished grade), and on the adjacent
property on the east at an elevation of approximately 96 feet (up to 4
feet of on-site finished grade).
Geotechnical Conditions
(relevant to infiltration)
No significant slopes exist on site.
Test for corrosive potential (pH, minimum resistivity, soluble
chlorides, and soluble sulfates) of the soils for both ferrous metals and
concrete resulted in negligible sulfate exposure to concrete, but
corrosive to ferrous metals.
Property site is not located within a mapped liquefaction hazard zone
on the Seismic Hazard Zone Map for the Newport Beach Quadrangle
(CGS 1997).
Moisture test of the uppermost 5 feet of the soil resulted in a slightly
below optimum moisture level.
Off-Site Drainage
Off-site drainage predominately flows south to southwest. An
existing golf course residing to the north and west of the site drains
southwesterly to Pacific Coast Highway. Drainage from the single
family homes at the northeast adjacent lot runs southerly onto
Granville Drive where and exits east onto Newport Center Drive.
Drainage from the commercial buildings and parking lots on the
south side sheet flows southwesterly towards Pacific Coast Highway.
Utility and Infrastructure
Information
Two existing 69” RCP storm drain systems currently lies south of the
site, at approximately 100 feet away. This pipe drains westerly and
then southerly into the Pacific Ocean at Balboa Harbor.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section III
NBCC WQMP 20190710.docx Page 12
III.3 Watershed Description
Fill out table with relevant information and include information regarding BMP sizing, suitability,
and feasibility, as applicable. Refer to Section 2.3.3 in the TGD.
Receiving Waters Lower Newport Bay
303(d) Listed Impairments
Chloride, Copper, DDT (dichlorodiphenyltrichloroethane), Indicator
bacteria, Nutrients, PCBs (polychlorinated biphenlys), Pesticides,
Sediment toxicity, and Dieldrin
Applicable TMDLs
The Lower Newport Bay has TMDLs for the following pollutants;
Metals, Toxics, Nutrients, Pathogens (Fecal Coliform Bacteria),
Pesticides/Priority Organics, and Sediment.
Pollutants of Concern for
the Project
Nutrients, Metals (Copper), Pathogens, Pesticides, Toxic Organic
Compounds
Environmentally Sensitive
and Special Biological
Significant Areas
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 13
Section IV Best Management Practices (BMPs)
IV. 1 Project Performance Criteria
Describe project performance criteria. Several steps must be followed in order to determine what
performance criteria will apply to a project. These steps include:
• If the project has an approved WIHMP or equivalent, then any watershed specific criteria
must be used and the project can evaluate participation in the approved regional or sub-
regional opportunities. The local Permittee planning or NPDES staff should be consulted
regarding the existence of an approved WIHMP or equivalent.
• Determine applicable hydromodification control performance criteria. Refer to Section 7.II-
2.4.2.2 of the Model WQMP.
• Determine applicable LID performance criteria. Refer to Section 7.II-2.4.3 of the Model WQMP.
• Determine applicable treatment control BMP performance criteria. Refer to Section 7.II-3.2.2 of
the Model WQMP.
• Calculate the LID design storm capture volume for the project. Refer to Section 7.II-2.4.3 of the
Model WQMP.
(NOC Permit Area only) Is there an approved WIHMP or equivalent
for the project area that includes more stringent LID feasibility
criteria or if there are opportunities identified for implementing LID
on regional or sub-regional basis?
YES NO
If yes, describe WIHMP
feasibility criteria or
regional/sub-regional LID
opportunities.
TBD
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 14
Project Performance Criteria (continued)
If HCOC exists,
list applicable
hydromodification
control
performance
criteria (Section
7.II-2.4.2.2 in
MWQMP)
No HCOC - Discharges of storm water runoff from the project are in concrete-
lined pipes all the way from the point of discharge to the ocean waters.
List applicable LID
performance
criteria (Section
7.II-2.4.3 from
MWQMP)
BIO-7 Proprietary Biotreatment:
Modular Wetlands consisting of Stormwater Planter Boxes with
Underdrains/Constructed Wetlands
List applicable
treatment control
BMP performance
criteria (Section
7.II-3.2.2 from
MWQMP)
N/A
Calculate LID
design storm
capture volume
for Project.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 15
IV.2. SITE DESIGN AND DRAINAGE PLAN
Describe site design and drainage plan including
• A narrative of site design practices utilized or rationale for not using practices;
• A narrative of how site is designed to allow BMPs to be incorporated to the MEP
• A table of DMA characteristics and list of LID BMPs proposed in each DMA.
• Reference to the WQMP plot plan.
• Calculation of Design Capture Volume (DCV) for each drainage area.
• A listing of GIS coordinates for LID and Treatment Control BMPs (unless not required by
local jurisdiction).
Refer to Section 2.4.2 in the TGD.
On-site drainage pattern is separated by two main catchment areas covering a total of 6.98 acres,
Catchment Area “A” and Catchment Area “B”.
Catchment Area “A” is at the northwestern half of the site, collects approximately 4.07 acres of
runoff, or 58% of the site. This area consists of 5 semi-custom homes and 27 rental bungalows.
Access to this residence is via a 36-foot wide road that runs northeasterly onto the site, called Villas
Street. Located on Villas Street are 7 catch basins that collect surface runoff from the street as well
as the area drains for the bungalows and custom homes. Stormwater runoff from the buildings and
its neighboring landscape is collected from the surrounding drainage inlets where it is connected to
the back of the catch basins. A proposed 30” Storm Drain along the center of Villas Street will
convey the collection of the stormwater southerly into an existing 69” RCP storm drain system.
Prior to discharging into the 69” RCP runoff will be conveyed into the proprietary biotreatment
BMP located near the south end of the site.
Catchment Area “B” is on the southeastern half and collects 2.91 acres of runoff, or 42% of the site.
This catchment area consists of the tennis courts, the swimming pool, the Golf Club House, and
two parking lots. Most of this catchment area is impervious hardscape. Drainage pattern sheet
flows southerly from the northeasterly tennis courts and collected by grate inlets and catch basins.
Overland flow from the southwest parking lot as well as the pool and Club House stormwater
runoff is conveyed to a proposed 24” storm drain system that connects to the proposed 30” Storm
Drain from Catchment Area “A”.
IV.3 LID BMP SELECTION AND PROJECT CONFORMANCE ANALYSIS
Each sub-section below documents that the proposed design features conform to the applicable
project performance criteria via check boxes, tables, calculations, narratives, and/or references to
worksheets. Refer to Section 2.4.2.3 in the TGD for selecting LID BMPs and Section 2.4.3 in the TGD for
conducting conformance analysis with project performance criteria.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 16
IV.3.1 Hydrologic Source Controls
If required HSCs are included, fill out applicable check box forms. If the retention criteria are
otherwise met with other LID BMPs, include a statement indicating HSCs not required.
Name Included?
Localized on-lot infiltration
Impervious area dispersion (e.g. roof top
disconnection)
Street trees (canopy interception)
Residential rain barrels (not actively managed)
Green roofs/Brown roofs
Blue roofs
Impervious area reduction (e.g. permeable
pavers, site design)
Other:
Other:
Other:
Onsite retention for this site is not feasible and the LID DCV is being met through
biotreatment/biofiltration BMPs. Street trees and impervious reduction is being implemented in the
project.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 17
IV.3.2 Infiltration BMPs
Identify infiltration BMPs to be used in project. If design volume cannot be met state why BMPs
cannot be met
Name Included?
Bioretention without underdrains
Rain gardens
Porous landscaping
Infiltration planters
Retention swales
Infiltration trenches
Infiltration basins
Drywells
Subsurface infiltration galleries
French drains
Permeable asphalt
Permeable concrete
Permeable concrete pavers
Other:
Other:
Show calculations below to demonstrate if the LID Design Strom Capture Volume can be met with
infiltration BMPs. If not document how much can be met with infiltration and document why it is
not feasible to meet the full volume with infiltration BMPs.
This project site cannot have infiltration BMPs due to Hydrologic Soil Type “D” conditions as
stated in the TGD Section VII.2.1, see excerpt below.
“This method uses regionally mapped data coupled with all applicable data available through
other site investigations to identify locations not potentially feasible for infiltration as a result of
low infiltration rate or high groundwater table.
Via this method, areas of a project identified as having D soils or identified as having depth to
first groundwater less than 5 feet are considered infeasible for infiltration if available data
confirm these determinations.” - TGD Section VII.2.1
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 18
IV.3.3 Evapotranspiration, Rainwater Harvesting BMPs
If the full Design Storm Capture Volume cannot be met with infiltration BMPs, describe any
evapotranspiration, rainwater harvesting BMPs.
Name Included?
All HSCs; See Section IV.3.1
Surface-based infiltration BMPs
Biotreatment BMPs
Above-ground cisterns and basins
Underground detention
Other:
Other:
Other:
Show calculations below to demonstrate if the LID Design Strom Capture Volume can be met with
evapotranspiration, rainwater harvesting BMPs in combination with infiltration BMPs. If not
document how much can be met with either infiltration BMPs, evapotranspiration, rainwater
harvesting BMPs, or a combination, and document why it is not feasible to meet the full volume
with either of these BMPs categories.
Evapotranspiration and rainwater harvesting BMPs are not used due to the geotechnical
recommendations to avoid infiltrating water near the buildings to prevent expansive heave and
water intrusion due to the low percolation rates of the underlying soils.
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Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 19
IV.3.4 Biotreatment BMPs
If the full Design Storm Capture Volume cannot be met with infiltration BMPs, and/or
evapotranspiration and rainwater harvesting BMPs, describe biotreatment BMPs. Include sections
for selection, suitability, sizing, and infeasibility, as applicable.
Name Included?
Bioretention with underdrains
Stormwater planter boxes with underdrains
Rain gardens with underdrains
Constructed wetlands
Vegetated swales
Vegetated filter strips
Proprietary vegetated biotreatment systems
Wet extended detention basin
Dry extended detention basins
Other:
Other:
Show calculations below to demonstrate if the LID Design Strom Capture Volume can be met with
infiltration, evapotranspiration, rainwater harvesting and/or biotreatment BMPs. If not document
how much can be met with either infiltration BMPs, evapotranspiration, rainwater harvesting
BMPs, or a combination, and document why it is not feasible to meet the full volume with either of
these BMPs categories.
The LID DCV has been met with the proposed biotreatment BMP Modular Wetlands. Refer to
Attachment D for the calculations.
Bioretention BMPs are not recommended by the geotechnical engineer.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 20
IV.3.5 Hydromodification Control BMPs
Describe hydromodification control BMPs. See Section 5 TGD. Include sections for selection,
suitability, sizing, and infeasibility, as applicable. Detail compliance with Prior Conditions of
Approval.
Hydromodification Control BMPs
BMP Name BMP Description
N/A N/A
IV.3.6 Regional/Sub-Regional LID BMPs
Describe regional/sub-regional LID BMPs in which the project will participate. Refer to Section 7.II-
2.4.3.2 of the Model WQMP.
Regional/Sub-Regional LID BMPs
IV.3.7 Treatment Control BMPs
Treatment control BMPs can only be considered if the project conformance analysis indicates that it is not
feasible to retain the full design capture volume with LID BMPs. Describe treatment control BMPs including
sections for selection, sizing, and infeasibility, as applicable.
Treatment Control BMPs
BMP Name BMP Description
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 21
IV.3.8 Non-structural Source Control BMPs
Fill out non-structural source control check box forms or provide a brief narrative explaining if non-
structural source controls were not used.
Non-Structural Source Control BMPs
Identifier Name
Check One If not applicable, state brief
reason Included Not
Applicable
N1 Education for Property Owners,
Tenants and Occupants
N2 Activity Restrictions
N3 Common Area Landscape
Management
N4 BMP Maintenance
N5 Title 22 CCR Compliance (How
development will comply)
N6 Local Industrial Permit Compliance
N7 Spill Contingency Plan
N8 Underground Storage Tank
Compliance
N9 Hazardous Materials Disclosure
Compliance
N10 Uniform Fire Code Implementation
N11 Common Area Litter Control
N12 Employee Training
N13 Housekeeping of Loading Docks
N14 Common Area Catch Basin Inspection
N15 Street Sweeping Private Streets and
Parking Lots
N16 Retail Gasoline Outlets
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 22
IV.3.9 Structural Source Control BMPs
Fill out structural source control check box forms or provide a brief narrative explaining if
Structural source controls were not used.
Structural Source Control BMPs
Identifier Name
Check One If not applicable, state brief
reason Included Not
Applicable
S1 Provide storm drain system stenciling
and signage
S2
Design and construct outdoor material
storage areas to reduce pollution
introduction
S3
Design and construct trash and waste
storage areas to reduce pollution
introduction
S4
Use efficient irrigation systems &
landscape design, water conservation,
smart controllers, and source control
S5 Protect slopes and channels and
provide energy dissipation Not anticipated on this project.
Incorporate requirements applicable to
individual priority project categories
(from SDRWQCB NPDES Permit)
S6 Dock areas Not anticipated on this project.
S7 Maintenance bays Not anticipated on this project.
S8 Vehicle wash areas
S9 Outdoor processing areas Not anticipated on this project.
S10 Equipment wash areas Not anticipated on this project.
S11 Fueling areas Not anticipated on this project.
S12 Hillside landscaping Not anticipated on this project.
S13 Wash water control for food
preparation areas
S14 Community car wash racks Not anticipated on this project.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 23
IV.4 ALTERNATIVE COMPLIANCE PLAN (IF APPLICABLE)
IV.4.1 Water Quality Credits
Determine if water quality credits are applicable for the project. Refer to Section 3.1 of the Model
WQMP for description of credits and Appendix VI of the TGD for calculation methods for applying water
quality credits.
Description of Proposed Project
Project Types that Qualify for Water Quality Credits (Select all that apply):
Redevelopment
projects that reduce the
overall impervious
footprint of the project
site.
Brownfield redevelopment, meaning
redevelopment, expansion, or reuse of real
property which may be complicated by the
presence or potential presence of hazardous
substances, pollutants or contaminants, and
which have the potential to contribute to
adverse ground or surface WQ if not
redeveloped.
Higher density development projects which
include two distinct categories (credits can only
be taken for one category): those with more than
seven units per acre of development (lower credit
allowance); vertical density developments, for
example, those with a Floor to Area Ratio (FAR)
of 2 or those having more than 18 units per acre
(greater credit allowance).
Mixed use development, such as a
combination of residential, commercial,
industrial, office, institutional, or other land
uses which incorporate design principles
that can demonstrate environmental benefits
that would not be realized through single
use projects (e.g. reduced vehicle trip traffic
with the potential to reduce sources of water
or air pollution).
Transit-oriented developments, such as a mixed
use residential or commercial area designed to
maximize access to public transportation; similar to
above criterion, but where the development center is
within one half mile of a mass transit center (e.g. bus,
rail, light rail or commuter train station). Such
projects would not be able to take credit for both
categories, but may have greater credit assigned
Redevelopment
projects in an established
historic district, historic
preservation area, or
similar significant city
area including core City
Center areas (to be
defined through
mapping).
Developments with
dedication of undeveloped
portions to parks,
preservation areas and
other pervious uses.
Developments
in a city center
area.
Developments
in historic
districts or
historic
preservation
areas.
Live-work developments, a
variety of developments designed
to support residential and
vocational needs together –
similar to criteria to mixed use
development; would not be able
to take credit for both categories.
In-fill projects, the
conversion of empty lots
and other underused
spaces into more
beneficially used spaces,
such as residential or
commercial areas.
Calculation of
Water Quality
Credits
(if applicable)
Pre-Construction Design Capture Volume: 14,721 cf
Post-Construction Design Capture Volume: 13,324 cf
Water Quality Credit: 1,397 cf
For full calculations, see Attachment D
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section IV
NBCC WQMP 20190710.docx Page 24
IV.4.2 Alternative Compliance Plan Information
Describe an alternative compliance plan (if applicable). Include alternative compliance obligations
(i.e., gallons, pounds) and describe proposed alternative compliance measures. Refer to Section 7.II
3.0 in the WQMP.
N/A
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section V
NBCC WQMP 20190710.docx Page 25
Section V Inspection/Maintenance
Responsibility for BMPs
Fill out information in table below. Prepare and attach an Operation and Maintenance Plan.
Identify the mechanism through which BMPs will be maintained. Inspection and maintenance
records must be kept for a minimum of five years for inspection by the regulatory agencies. Refer to
Section 7.II 4.0 in the Model WQMP.
BMP Inspection/Maintenance
BMP Reponsible
Party(s)
Inspection/
Maintenance
Activities
Required
Minimum
Frequency of
Activities
Storm Drain System
Common Area
Ownership
Association
Inspect and clean as
needed. Remove
debris and trash
annually and prior to
rainy season.
Annually and prior to
rainy season. Increase
as needed.
Catch Basins and
Inlets
Common Area
Ownership
Association
Inspect and clean as
needed. Remove
debris and trash
annually and prior to
rainy season.
Annually and prior to
rainy season. Increase
as needed.
Proprietary
Biotreatment
Common Area
Ownership
Association
Ensure vegetation is
healthy and inspect
for clogs. Ensure 48
draw down time. See
maintenance fact
sheet for additional
information
Vegetation inspection
to occur weekly. Draw
down time and pipe
network inspected
after every major
storm event.
Streets and Common
Areas
Common Area
Ownership
Association
Mechanical Street
Sweeping and
ongoing litter control
Weekly
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section V
NBCC WQMP 20190710.docx Page 26
BMP Inspection/Maintenance
BMP Reponsible
Party(s)
Inspection/
Maintenance
Activities
Required
Minimum
Frequency of
Activities
Landscaped Areas
Common Area
Ownership
Association
Trim vegetation,
replant bare spots,
maintain irrigation
systems, remove trash
and debris and control
erosion.
Weekly
Property Owner and
Employee Education
Common Area
Ownership
Association
Educate employees
annually and property
owners during change
of ownership.
Annually and As
Needed
Storm Drain
Stencilling
Common Area
Ownership
Association
Inspect Annually and
replace as needed. Annual inspection.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section VII
NBCC WQMP 20190710.docx Page 27
Section VI Site Plan and Drainage Plan
VI.1 SITE PLAN AND DRAINAGE PLAN
Include a site plan and drainage plan sheet set containing the following minimum information:
• Project location
• Site boundary
• Land uses and land covers, as applicable
• Suitability/feasibility constraints
• Structural BMP locations
• Drainage delineations and flow information
• Drainage connections
• BMP details
VI.2 ELECTRONIC DATA SUBMITTAL <optional – delete if not used>
The minimum requirement is to provide submittal of PDF exhibits in addition to hard copies.
Format must not require specialized software to open.
If the local jurisdiction requires specialized electronic document formats (CAD, GIS) to be
submitted, this section will be used to describe the contents (e.g., layering, nomenclature,
georeferencing, etc.) of these documents so that they may be interpreted efficiently and accurately.
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund Section VII
NBCC WQMP 20190710.docx Page 28
Section VII Educational Materials
Refer to the Orange County Stormwater Program (ocwatersheds.com) for a library of materials
available. For the copy submitted to the Permittee, only attach the educational materials specifically
applicable to the project. Other materials specific to the project may be included as well and must
be attached.
Education Materials
Residential Material
(http://www.ocwatersheds.com)
Check If
Applicable
Business Material
(http://www.ocwatersheds.com)
Check If
Applicable
The Ocean Begins at Your Front Door Tips for the Automotive Industry
Tips for Car Wash Fund-raisers Tips for Using Concrete and Mortar
Tips for the Home Mechanic Tips for the Food Service Industry
Homeowners Guide for Sustainable
Water Use Proper Maintenance Practices for Your
Business
Household Tips
Other Material Check If
Attached Proper Disposal of Household
Hazardous Waste
Recycle at Your Local Used Oil
Collection Center (North County)
Recycle at Your Local Used Oil
Collection Center (Central County)
Recycle at Your Local Used Oil
Collection Center (South County)
Responsible Pest Control
Sewer Spill
Tips for the Home Improvement Projects
Tips for Horse Care
Tips for Landscaping and Gardening
Tips for Pet Care
Tips for Pool Maintenance
Tips for Residential Pool, Landscape and
Hardscape Drains
Tips for Projects Using Paint
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund
NBCC WQMP 20190710.docx
Attachment A - Educational Materials
For More Information
Aliso Viejo (949) 425-2535
Anaheim Public Works Operations (714) 765-6860
Brea Engineering (714) 990-7666
Buena Park Public Works (714) 562-3655
Costa Mesa Public Services (714) 754-5323
Cypress Public Works (714) 229-6740
Dana Point Public Works (949) 248-3584
Fountain Valley Public Works (714) 593-4441
Fullerton Engineering Dept (714) 738-6853
Garden Grove Public Works (714) 741-5956
Huntington Beach Public Works (714) 536-5431
Irvine Public Works (949) 724-6315
La Habra Public Services (562) 905-9792
La Palma Public Works (714) 690-3310
Laguna Beach Water Quality (949) 497-0378
Laguna Hills Public Services (949) 707-2650
Laguna Niguel Public Works (949) 362-4337
Laguna Woods Public Works (949) 639-0500
Lake Forest Public Works (949) 461-3480
Los Alamitos Community Dev (562) 431-3538
Mission Viejo Public Works (949) 470-3056
Newport Beach, Code & Water
Quality Enforcement (949) 644-3215
Orange Public Works (714) 532-6480
Placentia Public Works (714) 993-8245
Rancho Santa Margarita (949) 635-1800
San Clemente Environmental Programs (949) 361-6143
San Juan Capistrano Engineering (949) 234-4413
Santa Ana Public Works (714) 647-3380
Seal Beach Engineering (562) 431-2527 x317
Stanton Public Works (714) 379-9222 x204
Tustin Public Works/Engineering (714) 573-3150
Villa Park Engineering (714) 998-1500
Westminster Public Works/Engineering (714) 898-3311 x446
Yorba Linda Engineering (714) 961-7138
Orange County Stormwater Program (877) 897-7455
Orange County 24-Hour
Water Pollution Problem Reporting Hotline
1-877-89-SPILL (1-877-897-7455)
On-line Water Pollution Problem Reporting Form
w w w o c w a t e r s h e d s c o m
The Ocean Begins
at Your Front Door
California Environmental Protection Agency
www calepa ca gov
• Air Resources Board
www arb ca gov
• Department of Pesticide Regulation
www cdpr ca gov
• Department of Toxic Substances Control
www dtsc ca gov
• Integrated Waste Management Board
www ciwmb ca gov
• Office of Environmental Health Hazard
Assessment
www oehha ca gov
• State Water Resources Control Board
www waterboards ca gov
Earth 911 - Community-Specific Environmental
Information 1-800-cleanup or visit www 1800cleanup
org
Health Care Agency’s Ocean and Bay Water Closure
and Posting Hotline
(714) 433-6400 or visit www ocbeachinfo com
Integrated Waste Management Dept. of Orange
County (714) 834-6752 or visit www oclandfills com for
information on household hazardous waste collection
centers, recycling centers and solid waste collection
O.C. Agriculture Commissioner
(714) 447-7100 or visit www ocagcomm com
Stormwater Best Management Practice Handbook
Visit www cabmphandbooks com
UC Master Gardener Hotline
(714) 708-1646 or visit www uccemg com Did You Know? Most people believe that the largest source of water pollution in urban areas comes from specific sources such as factories and sewage treatment plants In fact, the largest source of water pollution comes from city streets, neighborhoods, construction sites and parking lots This type of pollution is sometimes called “non-point source” pollution There are two types of non-point source pollution: stormwater and urban runoff pollution Stormwater runoff results from rainfall When rainstorms cause large volumes of water to rinse the urban landscape, picking up pollutants along the way Urban runoff can happen any time of the year when excessive water use from irrigation, vehicle washing and other sources carries trash, lawn clippings and other urban pollutants into storm drains Where Does It Go? Anything we use outside homes, vehicles and businesses – like motor oil, paint, pesticides, fertilizers and cleaners – can be blown or washed into storm drains A little water from a garden hose or rain can also send materials into storm drains Storm drains are separate from our sanitary sewer systems; unlike water in sanitary sewers (from sinks or toilets), water in storm drains is not treated before entering our waterways Printed on Recycled Paper
The Orange County Stormwater Program has created
and moderates an electronic mailing list to facilitate
communications, take questions and exchange ideas among
its users about issues and topics related to stormwater and
urban runoff and the implementation of program elements
To join the list, please send an email to
ocstormwaterinfo-join@list ocwatersheds com
Orange County Stormwater Program Even if you live miles from the Pacific Ocean, you may be unknowingly polluting it.Sources of Non-Point Source Pollution Automotive leaks and spills Improper disposal of used oil and other engine fluids Metals found in vehicle exhaust, weathered paint, rust, metal plating and tires Pesticides and fertilizers from lawns, gardens and farms Improper disposal of cleaners, paint and paint removers Soil erosion and dust debris from landscape and construction activities Litter, lawn clippings, animal waste, and other organic matter Oil stains on parking lots and paved surfaces The Effect on the OceanNon-point source pollution can have a serious impact on water quality in Orange County Pollutants from the storm drain system can harm marine life as well as coastal and wetland habitats They can also degrade recreation areas such as beaches, harbors and bays Stormwater quality management programs have been developed throughout Orange County to educate and encourage the public to protect water quality, monitor runoff in the storm drain system, investigate illegal dumping and maintain storm drains Support from Orange County residents and businesses is needed to improve water quality and reduce urban runoff pollution Proper use and disposal of materials will help stop pollution before it reaches the storm drain and the ocean Dumping one quart of motor oil into a storm drain can contaminate 250,000 gallons of water.
Follow these simple steps to help reduce water
pollution:
Household Activities
Do not rinse spills with water Use dry cleanup
methods such as applying cat litter or another
absorbent material, sweep and dispose of in
the trash Take items such as used or excess
batteries, oven cleaners, automotive fluids,
painting products and cathode ray tubes, like
TVs and computer monitors, to a Household
Hazardous Waste Collection Center (HHWCC)
For a HHWCC near you call (714) 834-6752 or
visit www oclandfills com
Do not hose down your driveway, sidewalk or
patio to the street, gutter or storm drain Sweep
up debris and dispose of it in the trash
Automotive
Take your vehicle to a commercial car
wash whenever possible If you wash your
vehicle at home, choose soaps, cleaners, or
detergents labeled non-toxic, phosphate- free
or biodegradable Vegetable and citrus-based
products are typically safest for the environment
Do not allow washwater from vehicle washing
to drain into the street, gutter or storm drain
Excess washwater should be disposed of in the
sanitary sewer (through a sink or toilet) or onto
an absorbent surface like your lawn
Monitor your vehicles for leaks and place a pan
under leaks Keep your vehicles well maintained
to stop and prevent leaks
Never pour oil or antifreeze in the street, gutter
or storm drain Recycle these substances at a
service station, a waste oil collection center or
used oil recycling center For the nearest Used
Oil Collection Center call 1-800-CLEANUP or
visit www 1800cleanup org
Never allow pollutants to enter the
street, gutter or storm drain!
Lawn and Garden
Pet and animal waste
Pesticides
Clippings, leaves and soil
Fertilizer
Common Pollutants
Automobile
Oil and grease
Radiator fluids and antifreeze
Cleaning chemicals
Brake pad dust
Home Maintenance
Detergents, cleaners and solvents
Oil and latex paint
Swimming pool chemicals
Outdoor trash and litter
The Ocean Begins at Your Front Door
Trash
Place trash and litter that cannot be recycled in
securely covered trash cans
Whenever possible, buy recycled products
Remember: Reduce, Reuse, Recycle
Pet Care
Always pick up after your pet Flush waste down
the toilet or dispose of it in the trash Pet waste,
if left outdoors, can wash into the street, gutter
or storm drain
If possible, bathe your pets indoors If you must
bathe your pet outside, wash it on your lawn or
another absorbent/permeable surface to keep
the washwater from entering the street, gutter or
storm drain
Follow directions for use of pet care products
and dispose of any unused products at a
HHWCC
Pool Maintenance
Pool and spa water must be dechlorinated and free
of excess acid, alkali or color to be allowed in the
street, gutter or storm drain
When it is not raining, drain dechlorinated pool and
spa water directly into the
sanitary sewer
Some cities may have ordinances that do not allow
pool water to be disposed of in the storm drain
Check with your city
Landscape and Gardening
Do not over-water Water your lawn and garden by
hand to control the amount of water you use or set
irrigation systems to reflect seasonal water needs
If water flows off your yard onto your driveway or
sidewalk, your system is over-watering Periodically
inspect and fix leaks and misdirected sprinklers
Do not rake or blow leaves, clippings or pruning
waste into the street, gutter or storm drain Instead,
dispose of waste by composting, hauling it to a
permitted landfill, or as green waste through your
city’s recycling program
Follow directions on pesticides and fertilizer,
(measure, do not estimate amounts) and do not use
if rain is predicted within 48 hours
Take unwanted pesticides to a HHWCC to be
recycled For locations and hours of HHWCC, call
(714) 834-6752 or visit www oclandfills com
Clean beaches and
healthy creeks,
rivers, bays and
ocean are important to Orange
County. However, if we are not
careful, our daily activities can
lead directly to water pollution
problems. Water that drains
through your watershed can pick
up pollutants which are then
transported to our waterways and
beautiful ocean.
You can prevent water pollution
by taking personal action and by
working with members of your
watershed community to prevent
urban runoff from entering your
waterway.
For more information,
please call the
Orange County Stormwater Program
at 1.877.89.SPILL
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1.877.89.SPILL.
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help protect your watershed. If you
have other suggestions, please contact your city’s
stormwater representatives or call the Orange
County Stormwater Program.
Help Prevent Ocean Pollution:
The Ocean Beginsat Your Front Door
Tips For Protecting
Your Watershed
WHAT STARTS HERE
COULD TRAVEL HERE
AND ENDS UP HERE
WHICH FLOWS
THROUGH HERE
Printed on Recycled Paper
My Watershed. Our Ocean.
Water + shed, noun: A region of land within
which water flows down into a specified water body,
such as a river, lake, sea, or ocean; a drainage basin
or catchment basin.
Orange County is comprised of 11 major
watersheds into which most of our water flows,
connecting all of Orange County to the Pacific
Ocean.
As water from
rain (stormwater)
or sprinklers and
hoses (urban runoff) runs down
your driveway
and into your
neighborhood
streets, sidewalks and gutters, it flows into storm drains that
lead to waterways within your watershed. The
waterways from other cities merge as they
make their way through our watersheds until
all the runoff water in Orange County meets at the Pacific Ocean. The water that reaches
our ocean is not pure. As it flows through the
watershed, it picks up pollutants such as litter,
cigarette butts, fertilizer, pesticides, pet waste,
motor oil and lawn clippings. Unlike water that enters the sewer (from sinks and toilets),
water that enters the storm drain is not treated before it flows, ultimately, to the ocean.
Water quality can be improved by
“Adopting Your Watershed.”
Through this
effort, we are challenging
citizens and
organizations to join the Orange County
Stormwater Program and others who are
working to protect and restore our creeks, rivers, bays and ocean.
There are many opportunities to get involved:
• Appreciate your watershed - explore the creeks, trails and ocean and make
observations about its conditions. If you see anything abnormal (such as dead fish, oil
spills, leaking barrels, and other pollution)
contact the Orange County 24-hour water pollution problem reporting hotline at
1.877.89.SPILL to report the problem.• Research your watershed. Learn
about what watershed you live in by
visiting www.ocwatersheds.com.
• Find a watershed organization
in your community and volunteer to help. If there
are no active groups,
consider starting your
own.
• Visit EPA’s Adopt Your Watershed’s Catalog of
Watershed Groups at
www.epa.gov/adopt to
locate groups in your
community.• Organize or join in
a creek, river, bay or
ocean cleanup event
such as Coastal & Inner
Coastal Cleanup Day that takes place the
3rd Saturday of every
September. For more
information visit
www.coast4u.org.
Follow these simple tips to protect the water
quality of your watershed:
• Sweep up debris and dispose of it in the trash. Do not
hose down driveways or sidewalks into the street or
gutter.
• Use dry cleanup methods such as cat litter to absorb
spills and sweep up residue.
• Set your irrigation systems to reflect seasonal water
needs or use weather-based controllers. Inspect for
runoff regularly.
• Cover trashcans securely.
• Take hazardous waste to a household hazardous waste
collection center. (For example, paint, batteries and
petroleum products)
• Pick up after your pet.
• Follow application and disposal directions for
pesticides and fertilizers.
• If you wash your car at home, wash it on your lawn
or divert the runoff onto a landscaped
area. Consider taking your car to a
commercial car wash, where the
water is reclaimed or recycled.
• Keep your car well
maintained.
• Never pour oil or
antifreeze in the
street, gutter or
storm drain.
P
A
C
I
F
I
C
O
C
E
A
N
5
405
605
5
5
39
73
55
74
22
22
241
133
133
57
90
91 91
39
1
1
57
261
73
241
1
90
1
55
91
241
1
Brea
Tustin
Orange
Villa Park
Stanton
Cypress
Anaheim
Rossmoor
La Palma
La Habra
Santa Ana
PlacentiaFullerton
Seal Beach
Dana Point
Costa Mesa
Buena Park
Yorba Linda
Westminster
Lake Forest
Aliso Viejo
San Clemente
Los Alamitos
Laguna Woods
Laguna Hills
Laguna Beach
Garden Grove
Coto de Caza
Newport Beach
Mission Viejo
Laguna Niguel
Foothill Ranch
Fountain Valley
Tustin Foothills
Huntington Beach
San Juan Capistrano
Rancho Santa Margarita
Irvine
Santa Ana River
Newport Bay
San Juan Creek
San Gabriel - Coyote Creek
Anaheim Bay - Huntington Harbour
San Mateo Creek
San ClementeCoastal Streams
LagunaCoastalStreams
Dana PointCoastal Streams
Elsinore Valley
MiddleSanta AnaRiver
LakeMathews
LakeMathews
Santa Ana River
Newport Bay
San Juan Creek
San Gabriel - Coyote Creek
Anaheim Bay - Huntington Harbour
San Mateo Creek
San ClementeCoastal Streams
Dana PointCoastal Streams
Elsinore Valley
MiddleSanta AnaRiver
LakeMathews
LakeMathews
Tips for ProtectingYour Watershed
Help Prevent Ocean Pollution:
The Tips contained in this brochure provide
useful information about how you can keep
materials and washwater from entering the storm
drain system. If you have other suggestions for
how water and materials may be contained, please
contact your city’s stormwater representative or
call the Orange County Stormwater Program.
Tips for
Using Concrete
and Mortar
C lean beaches
and healthy
creeks, rivers, bays,
and ocean are important to
Orange County. However,
many common activities
can lead to water pollution
if you’re not careful.
Materials and excess
concrete or mortar can be
blown or washed into the
storm drains that flow to
the ocean. Unlike water in
sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways.
You would never throw
building materials into the
ocean, so don’t let them
enter the storm drains.
Follow these easy tips to help
prevent water pollution.
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com.
To report a spill,
call the
Orange County 24-Hour
Water Pollution Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The Ocean Begins
at Your Front Door
Never allow materials or washwater to enter
the street or storm drain.
Before the Project
• Schedule projects for dry weather.
• Store materials under cover, with
temporary roofs or plastic sheets, to
eliminate or reduce the possibility that
the materials can be carried from the
project site to streets, storm drains or
adjacent properties via rainfall, runoff or
wind.
• Minimize waste by ordering only the
amount of materials needed to complete
the job.
• Take measures to block nearby storm
drain inlets.
During the Project
• Set up and operate small mixers on tarps
or heavy drop cloths.
• Do not mix more fresh concrete or
cement than is needed for the job.
• When breaking up pavement, pick up
all chunks and pieces and recycle them
at a local construction and demolition
recycling company. (See information to
the right)
• When making saw cuts in pavement,
protect nearby storm drain inlets
during the saw-cutting operation and
contain the slurry. Collect the slurry
residue from
the pavement or
gutter and remove
from the site.
Clean-Up
• Dispose of small amounts of dry
concrete, grout or mortar in the trash.
• Never hose materials from exposed
aggregate concrete, asphalt or similar
treatments into a street, gutter, parking
lot, or storm drain.
• Wash concrete
mixers and
equipment
in designated
washout areas
where the water
can flow into a
containment area or onto dirt. Small
amounts of dried material can be
disposed of in the trash. Large amounts
should be recycled at a local construction
and demolition recycling company. (See
information below)
• Recycle cement wash water by pumping it
back into cement mixers for reuse.
Spills
• Never hose down pavement or
impermeable surfaces where fluids have
spilled. Use an absorbent material such
as cat litter to soak up a spill, then sweep
and dispose in the trash.
• Clean spills on dirt areas by digging up
and properly disposing of contaminated
dry soil in trash.
• Immediately report significant spills to
the County’s 24-Hour Water Pollution
Problem Reporting Hotline at
714-567-6363 or log onto the County’s
website at www.ocwatersheds.com and fill
out an incident reporting form.
For a list of construction and demolition
recycling locations in your area visit
www.ciwmb.ca.gov/Recycle/.
For additional information on how to
control, prevent, remove, and reduce
pollution refer to the Stormwater Best
Management Practice Handbook, available
on-line at www.cabmphandbooks.com.
Tips for Using Concrete and Mortar
Ayude a prevenir
la contaminación del océano
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
Report sewage spills and
discharges that are not
contained to your site to the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455)
For emergencies, dial 911.
Help Prevent Ocean Pollution:
Tips for the Food
Service IndustryClean beaches
and healthy
creeks, rivers, bays
and ocean are important to
Orange County. Fats, oils
and grease from restaurants
and food service facilities
can cause sewer line
blockages that may result
in sewage overflow into
your facility and into storm
drains. Unlike water in
sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways
and should never contain
washwater, trash, grease or
other materials.
You would never dump oil
and trash into the ocean, so
don’t let it enter the storm
drains. Follow these tips to
help prevent water pollution.
The Ocean Begins
at Your Front Door
Printed on Recycled Paper
Best Kitchen Practices
Food Waste Disposal
Scrape food waste off of plates,
utensils, pots, food preparation and
cooking areas and dispose of it in the
trash.
Never put food waste down the drain.
Food scraps often contain grease,
which can clog sewer pipes and result
in sewage backups and overflows.
Grease & Oil Disposal
Never put oil or grease down the
drain. Contain grease and oil
by using covered grease storage
containers or installing a grease
interceptor.
Never overfill your grease storage
container or transport it without a
cover.
Grease control
devices must
be emptied
and cleaned
by permitted
companies.
Keep
maintenance
records on site.
For a list of oil/grease recycling
companies, contact the CIWMB at www.
ciwmb.ca.gov/foodwaste/render.htm or
contact your local sanitation district.
Minor Spill Cleanup
Always use dry cleanup methods, such
as a rag, damp mop or broom.
Never hose a spill into the street, gutter
or storm drain.
Dumpster Cleanup
Pick up all
debris around
the dumpster.
Always keep
the lid on
the dumpster
closed.
Never pour liquids into the dumpster
or hose it out.
Floor Mat Cleaning
Sweep the floor mats
regularly, discarding
the debris into the
trash.
Hose off the mats
in a mop sink, at a
floor drain, or in an
outdoor area that can
contain the water.
Never hose the mats in an area where
the wastewater can flow to the street,
gutter or storm drain.
Washwater Disposal
Dispose of washwater in a mop sink or
an area with a floor drain.
Never dispose of
washwater in the street,
gutter or storm drain.
Major Spill Cleanup
Have spill containment and clean-
up kits readily available, and train all
employees on how to use them.
Immediately contain and clean the spill
using dry methods.
If the spill leaves your site, call (714)
567-6363.
Ayude a prevenir
la contaminación del océano
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL
(1-877-897-7455)
or visit
www.ocwatersheds.com.
For information about the proper
disposal of household hazardous
waste, call the Household Waste
Hotline at 1-877-89-SPILL
(1-877-897-7455)
or visit www.oclandfills.com.
For additional information about the
nearest oil recycling center, call the
Used Oil Program at
1-800-CLEANUP
or visit www.cleanup.org.
Help Prevent Ocean Pollution:
Tips for the
Home Mechanic
The Ocean Begins atYour Front Door
Clean beaches and healthy
creeks, rivers, bays and
ocean are important to
Orange County. However, not
properly disposing of used oil is
illegal and can lead to fines. If you
pour or drain oil onto driveways,
sidewalks or streets, it can be
washed into the storm drain.
Help prevent water pollution by
taking your used oil and oil filters
to a used oil collection center. Most
major automotive maintenance
centers will accept up to five gallons
of used motor oil at no cost. For a
list of locations, please visit
www.cleanup.org.
emc/rev9/08
Tips for the Home Mechanic
drain to the County’s 24-Hour Water
Pollution Problem Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455) or
visit www.ocwatersheds.com to fill out
an incident report.
• Report emergencies to 911.
VeHICLe FLuId MAnAgeMenT
• Vehicle fluids are hazardous waste
and must be stored and disposed of
in accordance with all local, state and
federal laws.
• designate an area to drain vehicle
fluids away from storm drains and
sanitary drains.
• When possible, drain vehicle fluids
indoors or within covered areas, and
only over floors that are constructed
of a non-
porous
material
such as
concrete.
Asphalt and
dirt floors
absorb spilled or leaked fluids, making
the cleanup extremely difficult.
WORk SITe
• Locate the storm drains on or near
your property. do not allow used oil
or any materials to flow into these
drains.
• Examine your home for sources of
pollution.
• Perform automotive projects under
cover and in a controlled area to
prevent stormwater runoff.
• Sweep or vacuum your automotive
workspace regularly
• Use a
damp mop
to clean
work areas.
never
hose down
surfaces
into the
street, gutter or storm drain.
• Pour mop water into a sink or toilet.
never dispose of water in a parking
lot, street, gutter or storm drain.
PReVenT LeAkS And SPILLS
• Keep absorbent materials such as rags
and/or cat litter in the work area
• Empty drip pans into a labeled, seal
container before they are full
• Wipe up any spills or repair leaks as they
happen. don’t let them sit.
• Place large pans under any wrecked cars
until all fluids are drained.
• Promptly dispose of collected fluids into a
hazardous waste drum or deliver them to
an oil recycling center. used oil recycling
locations can be found at http://www.
ochealthinfo.com/regulatory/usedoil.htm
CLeAnIng SPILLS
• Clean up spills immediately by using
absorbent material such as rags, cat litter
or sand. If the
material spilled
is hazardous,
dispose of the
rag, litter or
sand in the
same manner
as hazardous
waste. If the material spill is non-
hazardous, dispose of it in the trash.
• Immediately report spills that have
entered the street, gutter or storm
Do your part to prevent water
pollution in our creeks, rivers, bays
and ocean.
Clean beaches and healthy creeks, rivers,
bays, and ocean are important to Orange
County.However, many common household
activities can lead to
water pollution if you’re
not careful.
Litter, oil, chemicals and
other substances that
are left on your yard or
driveway can be blown
or washed into storm
drains that flow to the
ocean. Over-watering
your lawn and washing
your car can also flush
materials into the storm
drains. Unlike water in sanitary sewers
(from sinks and toilets), water in storm
drains is not treated.
You would never pour soap, fertilizers or oil
into the ocean, so don’t let them enter
streets, gutters or storm drains. Follow the
easy tips in this brochure to help prevent
water pollution.GENUINERECYCLEDPAPER
50% PRE-CONSUMERAND15% POST-CONSUMER
REMEMBER THE
WATER IN YOUR
STORM DRAIN
IS NOT TREATED
BEFORE
IT ENTERS OUR
WATERWAYS
The Ocean Begins at Your Front Door
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution while
performing everyday household activities. If you
have other suggestions, please contact your city’s
stormwater representatives or call the Orange
County Stormwater Program.
Help Prevent Ocean Pollution:
Household Tips
Gardening Activities
�Follow directions on pesticides and
fertilizers, (measure, do not estimate
amounts) and do not use if rain is
predicted within 48 hours.
�Water your lawn and garden by hand to
control the amount of water you use. Set
irrigation systems to reflect seasonal
water needs. If water flows off your yard
and onto your driveway or sidewalk,
your system is over-watering.
�Mulch clippings or leave them on the
lawn. If necessary, dispose in a green
waste container.
�Cultivate your garden often to control
weeds.
Washing and Maintaining Your Car
�Take your car to a commercial car wash
whenever possible.
�Choose soaps, cleaners, or detergents
labeled “non-toxic,” “phosphate free” or
“biodegradable.” Vegetable and citrus-
based products are typically safest for
the environment, but even these should
not be allowed into the storm drain.
�Shake floor mats into a trash can or
vacuum to clean.
�Do not use acid-based wheel cleaners and
“hose off” engine degreasers at home.
They can be used at a commercial facility,
which can properly process the washwater.
�Do not dump washwater onto your
driveway, sidewalk, street, gutter or
storm drain.Excess washwater shouldbe disposed of in the sanitary sewers
(through a sink, or toilet) or onto an
absorbent surface like your lawn.
�Use a nozzle to turn off water when not
actively washing down automobile.
�Monitor vehicles for leaks and place
pans under leaks. Keep your car well
maintained to stop and prevent leaks.
�Use cat litter or other absorbents and
sweep to remove any materials deposited
by vehicles. Contain sweepings anddispose of at a HHWCC.
�Perform automobile repair and
maintenance under a covered area and
use drip pans or plastic sheeting to keep
spills and waste material from reaching
storm drains.
�Never pour oil or antifreeze in thestreet, gutter or storm drains.
Recycle these substances at a service
station, HHWCC, or used oil recycling
center.For the nearest Used Oil
Collection Center call 1-800-CLEANUP
or visit www.ciwmb.ca.gov/UsedOil.
Pollution Prevention
Household Activities
�Do not rinse spills with water!Sweep
outdoor spills and dispose of in the trash.
For wet spills like oil, apply cat litter or
another absorbent material, then sweep
and bring to a household hazardous waste
collection center (HHWCC).
�Securely cover trash cans.
�Take household hazardous waste to a house-
hold hazardous waste collection center.
�Store household hazardous waste in closed,
labeled containers inside or under a cover.
�Do not hose down your driveway, sidewalk or
patio. Sweep up debris and dispose of in trash.
�Always pick up after your pet. Flush waste
down the toilet or dispose of in the trash.
�Bathe pets indoors or have them
professionally groomed.
Household Hazardous Wastes include:
�Batteries
�Paint thinners, paint strippers and removers
�Adhesives
�Drain openers
�Oven cleaners
�Wood and metal cleaners and polishes
�Herbicides and pesticides
�Fungicides/wood preservatives
�Automotive fluids and products
�Grease and rust solvents
�Thermometers and other productscontaining mercury
�Fluorescent lamps
�Cathode ray tubes, e.g. TVs, computermonitors
�Pool and spa chemicals
For locations and hours of Household Hazardous Waste Collection Centers in Anaheim, Huntington
Beach, Irvine and San Juan Capistrano, call (714)834-6752 or visit www.oclandfills.com.
Ayude a prevenir
la contaminación del océano
Do your part to prevent
water pollution in our
creeks, rivers, bays and ocean.
Clean beaches and healthy
creeks, rivers, bays and ocean
are important to Orange County.
However, not properly disposing
of household hazardous waste can
lead to water pollution. Batteries,
electronics, paint, oil, gardening
chemicals, cleaners and other
hazardous materials cannot be
thrown in the trash. They also must
never be poured or thrown into
yards, sidewalks, driveways, gutters
or streets. Rain or other water could
wash the materials into the storm
drain and
eventually into
our waterways
and the ocean.
In addition,
hazardous
waste must not
be poured in
the sanitary
sewers (sinks
and toilets).
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To Report Illegal Dumping of
Household Hazardous Waste
call 1-800-69-TOXIC
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
ORANGE COUNTY
Help Prevent Ocean Pollution:
Proper Disposal ofHouseholdHazardous Waste
The Ocean Begins atYour Front Door
Printed on Recycled Paper
NEVER DISPOSE
OF HOUSEHOLD
HAZARDOUS
WASTE IN THE
TRASH, STREET,
GUTTER,
STORM DRAIN
OR SEWER.
Pollution Prevention
Leftover household products that contain
corrosive, toxic, ignitable, or reactive
ingredients are
considered to
be “household
hazardous waste”
or “HHW.” HHW
can be found
throughout your
home, including the
bathroom, kitchen,
laundry room and
garage.
Disposal of HHW down the drain, on the
ground, into storm drains, or in the trash
is illegal and unsafe.
Proper disposal of HHW is actually easy.
Simply drop them off at a Household
Hazardous Waste Collection Center
(HHWCC) for free disposal and recycling.
Many materials including anti-freeze, latex-
based paint, motor oil and batteries can
be recycled. Some centers have a “Stop &
Swap” program that lets you take partially
used home, garden, and automobile
products free of charge. There are four
HHWCCs in Orange County:
Anaheim: ..................1071 N. Blue Gum St
Huntington Beach: .........17121 Nichols St
Irvine:............................ 6411 Oak Canyon
San Juan Capistrano:...32250 La Pata Ave
Centers are open Tuesday-Saturday, 9 a.m.-
3 p.m. Centers are closed on rainy days and
major holidays. For more information, call
(714) 834-6752 or visit www.oclandfills.com.
Common household hazardous
wastes
Batteries
Paint and paint products
Adhesives
Drain openers
Household cleaning products
Wood and metal cleaners and polishes
Pesticides
Fungicides/wood preservatives
Automotive products (antifreeze, motor
oil, fluids)
Grease and rust solvents
Fluorescent lamps
Mercury (thermometers & thermostats)
All forms of electronic waste including
computers and microwaves
Pool & spa chemicals
Cleaners
Medications
Propane (camping & BBQ)
Mercury-containing lamps
Television & monitors (CRTs,
flatscreens)
Tips for household hazardous
waste
Never dispose of HHW in the trash,
street, gutter, storm drain or sewer.
Keep these materials in closed, labeled
containers and store materials indoors
or under a cover.
When possible, use non-hazardous
products.
Reuse products whenever possible or
share with family and friends.
Purchase only as much of a product as
you’ll need. Empty containers may be
disposed of in the trash.
HHW can be harmful to humans,
pets and the environment. Report
emergencies to 911.
WHEN POSSIBLE,
USE
NON-HAZARDOUS
OR
LESS-HAZARDOUS
PRODUCTS.
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
Proper Maintenance
Practices for
Your Business
The Ocean Beginsat Your Front Door
PROJECT
PREVENTION
Help Prevent Ocean Pollution:
Preventing water
pollution at your
commercial/industrial site
Clean beaches and healthy creeks, rivers,
bays and ocean are important to Orange
County. However, many landscape and
building maintenance activities can lead to
water pollution if you’re not careful. Paint,
chemicals, plant clippings and other materials
can be blown or washed into storm drains that
flow to the ocean. Unlike water in sanitary
sewers (from sinks and toilets), water in storm
drains is not treated before entering our
waterways.
You would never pour soap or fertilizers into
the ocean, so why would you let them enter the
storm drains? Follow these easy tips to help
prevent water pollution.
Some types of industrial facilities are required
to obtain coverage under the State General
Industrial Permit. For more information visit:
www.swrcb.ca.gov/stormwater/industrial.html
Printed on Recycled Paper
Tips for Pool Maintenance
Call your trash hauler to replace leaking
dumpsters.
Do not dump any toxic substance or
liquid waste on the pavement, the
ground, or near a
storm drain. Even
materials that
seem harmless
such as latex paint
or biodegradable
cleaners can
damage the
environment.
Recycle paints, solvents and other
materials. For more information about
recycling and collection centers, visit
www.oclandfills.com.
Store materials indoors or under cover
and away from storm drains.
Use a construction and demolition
recycling company to recycle lumber,
paper, cardboard, metals, masonry,
carpet, plastic, pipes, drywall, rocks,
dirt, and green waste. For a listing of
construction and demolition recycling
locations in your area, visit
www.ciwmb.ca.gov/recycle.
Properly label materials. Familiarize
employees with Material
Safety Data Sheets.
Landscape Maintenance
Compost grass clippings, leaves, sticks
and other vegetation, or dispose of it at
a permitted landfill or in green waste
containers. Do not dispose of these
materials in the street, gutter or storm
drain.
Irrigate slowly and inspect the system
for leaks, overspraying and runoff.
Adjust automatic timers to avoid
overwatering.
Follow label directions for the use and
disposal of fertilizers and pesticides.
Do not apply pesticides or fertilizers if
rain is expected within 48 hours or if
wind speeds are above 5 mph.
Do not spray pesticides within 100 feet
of waterways.
Fertilizers should be worked into the
soil rather than dumped onto the
surface.
If fertilizer is spilled on the pavement
or sidewalk, sweep it up immediately
and place it back in the container.
Building Maintenance
Never allow washwater, sweepings or
sediment to enter the storm drain.
Sweep up dry spills and use cat litter,
towels or similar materials to absorb wet
spills. Dispose of it in the trash.
If you wash your building, sidewalk or
parking lot, you must contain the water.
Use a shop vac to collect the water and
contact your city or sanitation agency
for proper disposal information. Do
not let water enter the street, gutter or
storm drain.
Use drop cloths underneath outdoor
painting, scraping, and sandblasting
work, and properly dispose of materials
in the trash.
Use a ground cloth or oversized tub for
mixing paint and cleaning tools.
Use a damp mop or broom to clean
floors.
Cover dumpsters to keep insects,
animals, rainwater and sand from
entering. Keep the area around the
dumpster clear of trash and debris. Do
not overfill the dumpster.
PROJECT
PREVENTION
Proper Maintenance Practices for your Business
Never Dispose
of Anything
in the Storm
Drain.
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL
(1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL
(1-877-897-7455)
For emergencies, dial 911.
The tips contained in this brochure provide useful
information about how you can keep soap, oil and
washwater from car wash activities from entering the
storm drain system. If you have other suggestions,
please contact your city’s stormwater representative
or call the Orange County Stormwater Program.
Printed on Recycled Paper
Help Prevent Ocean Pollution:
Tips for Car Wash
Fund-RaisersC lean beaches
and healthy
creeks, rivers, bays,
and ocean are important to
Orange County. However,
many common activities
can lead to water pollution
if you’re not careful.
Washwater, oil and residue
from car washing should not
flow into the street, gutter or
storm drain. Unlike water in
sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways.
You would never dump soap,
oil or dirty water into the
ocean, so don’t let it enter
the storm drains. Follow
these easy tips to help
prevent water pollution.
The Ocean Begins
at Your Front Door
Before beginning your
car wash fund-raiser
Partner with a
professional car
wash and avoid
the pollution
that parking
lot car washes
can produce.
Hold a meeting with all participants
to explain the proper procedures that
should be followed when washing cars.
Remove all trash and debris from the car
washing area.
Select only soaps, cleaners or detergents
labeled “non-toxic,” “phosphate-free,” or
“biodegradable.” The safest products for
the environment are vegetable-based or
citrus-based soaps. However, even these
soaps can be toxic for the environment,
so never let any products enter the street,
gutter or storm drain.
Do not use acid based wheel
cleaners or engine degreasers.
Select a site where the washwater can
soak into grass, gravel, or be diverted
to nearby landscaping. This will allow
the washwater to filter through the
vegetation and/or soil instead of
flowing directly into a storm drain.
Divert the washwater to an area where
the water can pool and evaporate
throughout the day, or arrange to
dispose of the washwater down a
sanitary sewer drain. For details, refer
to Factsheet IC24 Wastewater Disposal
Guidelines located at www.ocwatersheds.
com/StormWater/documents_bmp_
existing_development.asp#res
If there is a storm drain on-site,
block it with sandbags. At the end
of the day, dispose of the sandbags
by dumping the contents in an
authorized landscaped area.
During the fund-raiser
Never let any trash or washwater enter
the street, gutter or storm drain.
Shake car mats in a trash can or
vacuum them. Do not shake dirt from
car mats directly onto the ground.
Use a bucket of soapy water to
re-soap rags or sponges throughout
the day rather than adding
soap directly to them.
Wring sponges and washrags into
buckets, not the ground.
Conserve water by using a spray
nozzle with an automatic shut-off.
Turn off the water or kink the
hose when not in use.
Always empty buckets into the sanitary
sewer system (e.g. sinks or toilets) or a
landscaped area rather than pouring
the water on concrete or asphalt.
After the fund-raiser
Remember to clean up. Have a volunteer
walk the perimeter of the site to pick
up trash and debris and
dispose of it properly.
Tips for Car Wash Fund-Raisers
Clean beaches and healthy
creeks, rivers, bays and
ocean are important
to Orange County. However,
many common activities such as
pest control can lead to water
pollution if you’re not careful.
Pesticide treatments must be
planned and applied properly
to ensure that pesticides do
not enter the street, gutter or
storm drain. Unlike water in
sanitary sewers (from sinks and
toilets), water in storm drains is
not treated before entering our
waterways.
You would never dump pesticides
into the ocean, so don’t let it
enter the storm drains. Pesticides
can cause significant damage
to our environment if used
improperly. If you are thinking
of using a pesticide to control a
pest, there are some important
things to consider.
For more information,
please call
University of California Cooperative
Extension Master Gardeners at
(714) 708-1646
or visit these Web sites:
www.uccemg.org
www.ipm.ucdavis.edu
For instructions on collecting a specimen
sample visit the Orange County
Agriculture Commissioner’s website at:
http://www.ocagcomm.com/ser_lab.asp
To report a spill, call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
Information From:
Cheryl Wilen, Area IPM Advisor; Darren Haver,
Watershed Management Advisor; Mary
Louise Flint, IPM Education and Publication
Director; Pamela M. Geisel, Environmental
Horticulture Advisor; Carolyn L. Unruh,
University of California Cooperative
Extension staff writer. Photos courtesy of
the UC Statewide IPM Program and
Darren Haver.
Funding for this brochure has been provided in full
or in part through an agreement with the State Water
Resources Control Board (SWRCB) pursuant to the
Costa-Machado Water Act of 2000 (Prop. 13).
Help Prevent Ocean Pollution:
The Ocean Beginsat Your Front Door
Responsible
Pest Control
Printed on Recycled Paper
Key Steps to Follow:
Step 1: Correctly identify the pest (insect,
weed, rodent, or disease) and verify that it is
actually causing the problem.
This is important
because beneficial
insects are often
mistaken for pests
and sprayed with pesticides needlessly.
Consult with a
Certified Nursery
Professional at a local nursery or garden center or send a sample of the pest to the Orange
County Agricultural Commissioner’s Office.
Determine if the pest is still present – even
though you see damage, the pest may have left.
Step 2: Determine
how many pests are
present and causing
damage.
Small pest populations
may be controlled
more safely using non-
pesticide techniques. These include removing food sources, washing off leaves with a strong
stream of water, blocking entry into the home
using caulking and replacing problem plants
with ones less susceptible to pests.
Step 3: If a pesticide must be used, choose the least toxic chemical.
Obtain information on the least toxic pesticides
that are effective at controlling the target
pest from the UC Statewide Integrated Pest Management (IPM) Program’s Web site at
www.ipm.ucdavis.edu.
Seek out the assistance of a Certified Nursery
Professional at a local nursery or garden center when selecting a pesticide. Purchase the
smallest amount of pesticide available.
Apply the pesticide to the pest during its most
vulnerable life stage. This information can be found on the pesticide label.
Step 4: Wear appropriate protective clothing.
Follow pesticide labels regarding specific types of protective equipment you should wear.
Protective clothing should always be washed
separately from other clothing.
Step 5: Continuously monitor external conditions when applying pesticides such as
weather, irrigation, and the presence of children
and animals.
Never apply pesticides when rain is predicted within the next 48 hours. Also, do not water
after applying pesticides unless the directions say
it is necessary.
Apply pesticides when the air is still; breezy conditions may cause the spray or dust to drift
away from your targeted area.
In case of an emergency call 911 and/or the
regional poison control number at (714) 634-5988 or (800) 544-4404 (CA only).
For general questions you may also visit www.calpoison.org.
Step 6: In the event of accidental spills,
sweep up or use an absorbent agent to remove
any excess pesticides. Avoid the use of water.
Be prepared. Have a broom, dust pan, or dry
absorbent material, such as cat litter, newspapers
or paper towels, ready to assist in cleaning up
spills.
Contain and clean up the spill right away. Place
contaminated materials in a doubled plastic bag.
All materials used to clean up the spill should
be properly disposed of according to your local Household Hazardous Waste Disposal site.
Step 7: Properly store and dispose of unused
pesticides.
Purchase Ready-To-
Use (RTU) products
to avoid storing
large concentrated
quantities of pesticides.
Store unused chemicals in a locked cabinet.
Unused pesticide chemicals may be disposed of at a Household Hazardous Waste Collection
Center.
Empty pesticide containers should be triple
rinsed prior to disposing of them in the trash.
Household Hazardous Waste Collection Center(714) 834-6752www.oclandfills.com
Integrated Pest Management (IPM) usually combines several least toxic pest control methods for long-term prevention and management of pest problems without harming you, your family, or the environment.
Three life stages of the common lady
beetle, a beneficial insect.
Tips for Pest Control
Help Prevent Ocean Pollution:
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution while
performing home improvement projects. If you
have other suggestions, please contact your city’s
stormwater representatives or call the Orange
County Stormwater Program.
Clean beaches
and healthy
creeks, rivers, bays
and ocean are important to
Orange County. However, many
common activities can lead to
water pollution if you’re not
careful. Home improvement
projects and work sites must
be maintained to ensure that
building materials do not enter
the street, gutter or storm drain.
Unlike water in sanitary sewers
(from sinks and toilets), water
in storm drains is not treated
before entering our waterways.
You would never dump building
materials into the ocean, so
don’t let them enter the storm
drains. Follow these tips to help
prevent water pollution.
Printed on Recycled Paper
Tips for Pool Maintenance
When permanently removing large quantities of
soil, a disposal location must be found prior to
excavation. Numerous businesses are available to
handle disposal needs. For disposal options, visit
www.ciwmb.ca.gov/SWIS.
Prevent erosion by planting fast-growing annual and
perennial grasses. They will shield and bind the soil.
Recycle
Use a construction and demolition recycling company to recycle lumber, paper, cardboard, metals, masonry (bricks, concrete, etc.), carpet, plastic, pipes (plastic, metal and clay), drywall, rocks, dirt and green waste.
For a listing of construction and demolition recycling locations in your area, visit www.ciwmb.ca.gov/recycle.
Spills
Clean up spills immediately by using an absorbent material such as cat litter, then sweep it up and dispose of it in the trash.
Immediately report spills that have entered the street, gutter or storm drain to the County’s 24-Hour Water Pollution Problem Reporting Hotline at (714) 567-6363 or visit www.ocwatersheds.com to fill out an incident reporting form.
Home improvement projects can cause significant
damage to the environment. Whether you hire
a contractor or work on the house yourself, it
is important to follow these simple tips while
renovating, remodeling or improving your home:
General Construction
Schedule projects for dry
weather.
Keep all construction debris
away from the street, gutter
and storm drain.
Store materials under cover
with temporary roofs or plastic
sheets to eliminate or reduce
the possibility that rainfall,
runoff or wind will carry
materials from the project site
to the street, storm drain or
adjacent properties.
Building Materials
Never hose materials into a street, gutter or storm
drain.
Exposed piles of construction material should not be
stored on the street or sidewalk.
Minimize waste by ordering only the amount of
materials needed to complete the job.
Do not mix more fresh concrete than is needed for
each project.
Wash concrete mixers and equipment in a
designated washout area where the water can flow
into a containment area or onto dirt.
Dispose of small amounts of dry excess materials in
the trash. Powdery waste, such as dry concrete, must
be properly contained within a box or bag prior to
disposal. Call your local trash hauler for weight and
size limits.
Paint
Measure the room or object to be painted, then buy
only the amount needed.
Place the lid on firmly and store the paint can upside-
down in a dry location away from the elements.
Tools such as brushes, buckets and rags should never
be washed where excess water can drain into the
street, gutter or storm drain. All tools should be
rinsed in a sink connected to the sanitary sewer.
When disposing of paint, never put wet paint in the
trash.
Dispose of water-based paint by removing the lid
and letting it dry
in the can. Large
amounts must be
taken to a Household
Hazardous Waste
Collection Center
(HHWCC).
Oil-based paint is a
household hazardous
waste. All leftover
paint should be taken
to a HHWCC.
For HHWCC locations and hours, call (714) 834-6752
or visit www.oclandfills.com.
Erosion Control
Schedule grading and excavation projects for dry weather.
When temporarily removing soil, pile it in a contained, covered area where it cannot spill into the street, or obtain the required temporary encroachment or street closure permit and follow the conditions instructed by the permit.
Tips for Home Improvement Projects
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
UCCE Master Gardener Hotline:
(714) 708-1646
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution
while landscaping or gardening. If you have other
suggestions, please contact your city’s stormwater
representatives or call the Orange County
Stormwater Program.
C lean beaches
and healthy
creeks, rivers, bays
and ocean are important to
Orange County. However,
many common activities
can lead to water pollution
if you’re not careful.
Fertilizers, pesticides and
other chemicals that are left
on yards or driveways can
be blown or washed into
storm drains that flow to the
ocean. Overwatering lawns
can also send materials into
storm drains. Unlike water
in sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways.
You would never pour
gardening products into the
ocean, so don’t let them enter
the storm drains. Follow
these easy tips to help prevent
water pollution.
Printed on Recycled Paper
Tips for Landscape and GardeningTips for Landscape & Gardening
Never allow gardening products or
polluted water to enter the street, gutter
or storm drain.
General Landscaping Tips
Protect stockpiles and materials from
wind and rain by storing them under
tarps or secured plastic sheeting.
Prevent erosion of slopes by planting
fast-growing, dense ground covering
plants. These will shield and bind the
soil.
Plant native vegetation
to reduce the amount
of water, fertilizers, and
pesticide applied to the
landscape.
Never apply pesticides
or fertilizers when rain is
predicted within the next 48 hours.
Garden & Lawn Maintenance
Do not overwater. Use irrigation
practices such as drip irrigation,
soaker hoses or micro spray systems.
Periodically inspect and fix leaks and
misdirected sprinklers.
Do not rake or blow
leaves, clippings or
pruning waste into
the street, gutter
or storm drain.
Instead, dispose
of green waste by
composting, hauling
it to a permitted
landfill, or recycling it through your
city’s program.
Use slow-release fertilizers to
minimize leaching, and use organic
fertilizers.
Read labels and use only as directed.
Do not over-apply pesticides or
fertilizers. Apply to spots as needed,
rather than blanketing an entire
area.
Store pesticides, fertilizers and other
chemicals in a dry covered area to
prevent exposure that may result
in the deterioration
of containers and
packaging.
Rinse empty
pesticide containers
and re-use rinse water
as you would use the
product. Do not dump rinse water
down storm drains. Dispose of empty
containers in the trash.
When available, use non-toxic
alternatives to traditional pesticides,
and use pesticides specifically
designed to control the pest you are
targeting. For more information, visit
www.ipm.ucdavis.edu.
If fertilizer is spilled, sweep up the
spill before irrigating. If the spill is
liquid, apply an absorbent material
such as cat litter, and then sweep it up
and dispose of it in the trash.
Take unwanted pesticides to a
Household Hazardous Waste
Collection Center to be recycled.
Locations are provided below.
Household Hazardous Waste
Collection Centers
Anaheim: 1071 N. Blue Gum St.
Huntington Beach: 17121 Nichols St.
Irvine: 6411 Oak Canyon
San Juan Capistrano: 32250 La Pata Ave.
For more information, call (714) 834-6752
or visit www.oclandfills.com
C lean beaches
and healthy
creeks, rivers, bays
and ocean are important to
Orange County. However,
many common activities
can lead to water pollution
if you’re not careful. Pet
waste and pet care products
can be washed into the
storm drains that flow to
the ocean. Unlike water in
sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways.
You would never put pet
waste or pet care products
into the ocean, so don’t let
them enter the storm drains.
Follow these easy tips to help
prevent water pollution.
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution while
caring for your pet. If you have other suggestions,
please contact your city’s stormwater representatives
or call the Orange County Stormwater Program.
Printed on Recycled Paper
Never let any pet care products or
washwater run off your yard and into
the street, gutter or storm drain.
Washing Your Pets
Even biodegradable soaps and
shampoos can be harmful to marine
life and the environment.
If possible, bathe your pets indoors
using less-toxic shampoos or have
your pet professionally groomed.
Follow instructions on the products
and clean up spills.
If you bathe your pet outside, wash it
on your lawn or another absorbent/
permeable surface to keep the
washwater from running into the
street, gutter or storm drain.
Flea Control
Consider using oral or topical flea
control products.
If you use flea control products
such as shampoos, sprays or collars,
make sure to dispose of any unused
products at
a Household
Hazardous
Waste
Collection
Center. For
location
information,
call (714) 834-6752.
Why You Should Pick Up After
Your Pet
It’s the law!
Every city has
an ordinance
requiring you
to pick up
after your pet.
Besides being
a nuisance, pet
waste can lead to water pollution, even
if you live inland. During rainfall, pet
waste left outdoors can wash into storm
drains. This waste flows directly into our
waterways and the ocean where it can
harm human health, marine life and
the environment.
As it decomposes, pet waste demands
a high level of oxygen from water.
This decomposition can contribute to
killing marine
life by reducing
the amount of
dissolved oxygen
available to
them.
Have fun with
your pets, but
please be a
responsible pet
owner by taking
care of them and the environment.
Take a bag with you on walks to pick
up after your pet.
Dispose of the waste in the trash or in
a toilet.
Tips for Pet Care
Help Prevent Ocean Pollution:
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution. If
you have other suggestions, please contact your
city’s stormwater representatives or call the Orange
County Stormwater Program.
Printed on Recycled Paper
Tips for Residential
Pool, Landscape and
Hardscape Drains
Pool Maintenance
All pool water discharged to the curb, gutter or
permitted pool drain from your property must meet the
following water quality criteria:
The residual chlorine does not exceed
0.1 mg/L (parts per
million).
The pH is between
6.5 and 8.5.
The water is free
of any unusual
coloration.
There is no discharge
of filter media or acid
cleaning wastes.
Some cities have ordinances that do not allow pool
water to be discharged to the storm drain. Check with
your city.
Landscape and
Hardscape Drains
The following recommendations will help reduce or
prevent pollutants from your landscape and hardscape
drains from entering the street, gutter or storm drain.
Unlike water that enters the sewer (from sinks and
toilets), water that enters a landscape or hardscape
drain is not treated before entering our creeks, rivers,
bays and ocean.
Household Activities
Do not rinse spills of materials or chemicals to any
drain.
Use dry cleanup methods such as applying cat
litter or another absorbent material, then sweep it
up and dispose of it in the trash. If the material is
hazardous, dispose of it at a Household Hazardous
Waste Collection Center (HHWCC). For locations,
call (714) 834-6752 or visit www.oclandfills.com.
Do not hose down your driveways, sidewalks or
patios to your landscape or hardscape drain.
Sweep up debris and dispose of it in the trash.
Always pick up after your pet. Flush waste down
the toilet or dispose of it in the trash.
Tips for Residential Pool, Landscape and Hardscape Drains
Do not store items such as cleaners, batteries,
automotive fluids, paint products, TVs, or
computer monitors uncovered outdoors. Take
them to a HHWCC for disposal.
Yard Maintenance
Do not overwater. Water by hand or set
automated irrigation systems to reflect seasonal
water needs.
Follow directions on
pesticides and fertilizers
(measure, do not estimate
amounts) and do not use
if rain is predicted within
48 hours.
Cultivate your garden
often to control weeds
and reduce the need to
use chemicals.
Vehicle Maintenance
Never pour oil or antifreeze down your
landscape or hardscape drain. Recycle these
substances at a service station, a waste collection
center or used oil recycling center. For
locations, contact the Used Oil Program at 1-800-
CLEANUP or visit www.CLEANUP.org.
Whenever possible, take your vehicle to a
commercial car wash.
If you do wash your vehicle at home, do not
allow the washwater to go down your landscape
or hardscape drain. Instead, dispose of it in
the sanitary sewer (a sink or toilet) or onto an
absorbent surface such as your lawn.
Use a spray nozzle that will shut off the water
when not in use.
For more information,
please call the
Orange County Stormwater Program
at 1-877-89-SPILL (1-877-897-7455)
or visit
www.ocwatersheds.com
To report a spill,
call the
Orange County 24-Hour
Water Pollution Problem
Reporting Hotline
at 1-877-89-SPILL (1-877-897-7455).
For emergencies, dial 911.
The tips contained in this brochure provide useful
information to help prevent water pollution while
using, storing and disposing of paint. If you
have other suggestions, please contact your city’s
stormwater representatives or call the Orange
County Stormwater Program.
Clean beaches
and healthy
creeks, rivers, bays
and ocean are important to
Orange County. However,
many common activities
such as painting can lead
to water pollution if you’re
not careful. Paint must be
used, stored and disposed of
properly to ensure that it does
not enter the street, gutter or
storm drain. Unlike water in
sanitary sewers (from sinks
and toilets), water in storm
drains is not treated before
entering our waterways.
You would never dump paint
into the ocean, so don’t let
it enter the storm drains.
Follow these easy tips to help
prevent water pollution.
Printed on Recycled Paper
Tips for Pool Maintenance
Paint can cause significant damage to our
environment. Whether you hire a contractor or
do it yourself, it is important to follow these simple
tips when purchasing, using, cleaning, storing and
disposing of paint.
Purchasing Paint
Measure the room or object to be painted, then buy
only the amount needed.
Whenever possible, use water-based paint since it
usually does not require hazardous solvents such as
paint thinner for cleanup.
Painting
Use only one brush or roller per color of paint to
reduce the amount of water needed for cleaning.
Place open paint containers or trays on a stable
surface and in a position that is unlikely to spill.
Always use a tarp under the area or object being
painted to collect paint drips and contain spills.
Cleaning
Never clean brushes or rinse paint containers in the
street, gutter or storm drain.
For oil-based products, use as much of the paint on
the brushes as possible. Clean brushes with thinner.
To reuse thinner, pour it through a fine filter (e.g.
nylon, metal gauze or filter paper) to remove solids
such as leftover traces of paint.
For water-based products, use as much of the paint
on the brushes as possible, then rinse in the sink.
Collect all paint chips and dust. Chips and dust
from marine paints or paints containing lead,
mercury or tributyl tin are hazardous waste. Sweep
up and dispose of at a Household Hazardous Waste
Collection Center (HHWCC).
Storing Paint
Store paint in a dry location away from the elements.
Store leftover water-based paint, oil-based paint and
solvents separately in original or clearly marked
containers.
Avoid storing paint cans directly on cement floors.
The bottom of the can will rust much faster on
cement.
Place the lid on firmly and store the paint can upside-
down to prevent air from entering. This will keep the
paint usable longer. Oil-based paint is usable for up
to 15 years. Water-based paint remains usable for up
to 10 years.
Alternatives to Disposal
Use excess paint to apply another coat, for touch-ups,
or to paint a closet, garage, basement or attic.
Give extra paint to friends or family. Extra paint can
also be donated to a local theatre group, low-income
housing program or school.
Take extra paint to an exchange program such as the
“Stop & Swap” that allows you to drop off or pick up
partially used home care products free of charge.
“Stop & Swap” programs are available at most
HHWCCs.
For HHWCC locations and hours, call (714) 834-6752
or visit www.oclandfills.com.
Disposing of Paint
Never put wet paint in the trash.
For water-based paint:
If possible, brush the leftover paint on cardboard or
newspaper. Otherwise, allow the paint to dry in the
can with the lid off in a well-ventilated area protected
from the elements, children and pets. Stirring the
paint every few days will speed up the drying.
Large quantities of extra paint should be taken to a
HHWCC.
Once dried, paint and painted surfaces may be
disposed of in the trash. When setting a dried paint
can out for trash collection, leave the lid off so the
collector will see that the paint has dried.
For oil-based paint:
Oil-based paint is a household hazardous waste.
All leftover paint should be taken to a HHWCC.
Aerosol paint:
Dispose of aerosol paint cans at a HHWCC.
Spills
Never hose down pavement or other impermeable
surfaces where paint has spilled.
Clean up spills immediately by using an absorbent
material such as cat litter. Cat litter used to clean
water-based paint spills can be disposed of in the
trash. When cleaning oil-based paint spills with cat
litter, it must be taken to a HHWCC.
Immediately report spills that have entered the
street, gutter or storm drain to the County’s 24-Hour
Water Pollution Problem Reporting Hotline at (714)
567-6363 or visit www.ocwatersheds.com to fill out an
incident reporting form.
Tips for Projects Using Paint
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund
NBCC WQMP 20190710.docx
Attachment B - Exhibits/Maps
Vicinity Map
Storm Drain Map
EXISTING CONDITIONCITY OF NEWPORT BEACHBUILDING AND SAFETY DEPARTMENTNEWPORT BEACH COUNTRY CLUB1602 EAST COAST HIGHWAY, NEWPORT BEACH, CA 92660PREPARED BY:LAND STRATEGIES, LLC
EXISTING TENNIS COURTSPROTECT IN PLACEEXISTING TENNIS COURTPROTECT IN PLACEEXISTING TENNIS COURTPROTECT IN PLACEEXISTING TENNIS COURTPROTECT IN PLACESTOPSTOPSTOPNOPARKINGONE WAYDO NOT ENTERRESERVEDEMPLOYEEONLYRESERVEDEMPLOYEEONLYNOPARKING
EXISTING TENNIS COURTPROTECT IN PLACEWQMP EXHIBITMODULAR WETLAND LOCATIONCITY OF NEWPORT BEACHBUILDING AND SAFETY DEPARTMENTNEWPORT BEACH COUNTRY CLUB1602 EAST COAST HIGHWAY, NEWPORT BEACH, CA 92660PREPARED BY:LAND STRATEGIES, LLCAREA DELINEATION TABLE:NEWPORT CENTER DR.
GRANVILLE DR.LEGEND:
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund
NBCC WQMP 20190710.docx
Attachment C - TGD Reference Maps
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
1.05
0.7
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-1_RainfallZones_20110215.mxdFIGUREJOBTITLESCALE1" = 1.8 milesDESIGNEDDRAWINGCHECKEDBMP04/22/10DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[VGEJPKECN!IWKFCPEGFQEWOGPVORANGE CO.CATCKPHCNN!\QPGUUWDLGEV!VQ!HWTVJGT!TGXKUKQP
0 3.6 7.21.8
Miles
0 6 123
Kilometers
LEGEND
Orange County Precipitation Stations
24 Hour, 85th Percentile Rainfall (Inches)
24 Hour, 85th Percentile Rainfall (Inches) - Extrapolated
City Boundaries
Rainfall Zones
Design Capture Storm Depth (inches)
0.65"
0.7
0.75
0.80
0.85
0.90
0.95
1.00
1.10"
Note: Events defined as 24-hour periods (calendar days) with greater
than 0.1 inches of rainfall.
For areas outside of available data coverage, professional judgment shall be applied.
XVI-1
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2a_HydroSoils_20110215.mxdFIGURE
XVI-2aJOBTITLESCALE1" = 1.8 milesDESIGNEDDRAWINGCHECKEDBMP02/09/11DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAPTEU!J[FTQNQIKEUQKNU!ITQWRUUWDLGEV!VQ!HWTVJGT!TGXKUKQP
Source:
Soils: Natural Resources Conservation Service (NRCS)
Soil Survey - soil_ca678, Orange County & Western Riverside
Date of publication: 2006-02-08
"K
0 3.6 7.21.8
Miles
0 5 102.5
Kilometers
LEGEND
City Boundaries
Hydrologic Soil Groups
A Soils
B Soils
C Soils
D Soils
http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2b_D-Soils_20110215.mxdFIGURE
XVI-2bJOBTITLESCALE1" = 1.8 milesDESIGNEDDRAWINGCHECKEDBMP02/09/11DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAJ[FTQNQIKE!UQKN!ITQWR!V[RG!F!PTEU!UQKN!UWTXG[UWDLGEV!VQ!HWTVJGT!TGXKUKQP
Source:
D Soils: Natural Resources Conservation Service (NRCS)
Soil Survey - soil_ca678, Orange County & Western Riverside
Date of publication: 2006-02-08
"K
0 3.6 7.21.8
Miles
0 5 102.5
Kilometers
LEGEND
City Boundaries
Hydrologic Soil Groups
D Soils
http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2c_Landslides_20110215.mxdFIGURE
XVI-2cJOBTITLESCALE1" = 1.25 milesDESIGNEDDRAWINGCHECKEDBMP02/09/11DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAJ[FTQNQIKE!UQKN!ITQWR!V[RG!F!PTEU!UQKN!UWTXG[UWDLGEV!VQ!HWTVJGT!TGXKUKQP
Source:Seismic Hazard Zone Maps
Division of Mines and Geology, California Geology Survey,
Publication Date: 2005; Data Downloaded 02-09-2011
"K
0 3.6 7.21.8
Miles
0 5 102.5
Kilometers
LEGEND
City Boundaries
Seismic Hazards
Potential Landslide Area
http://www.conservation.ca.gov/cgs/shzp/Pages/Index.aspx
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
50
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2d_DepthToGroundwaterOverview_20110215.mxdFIGURE
XVI-2dJOBTITLESCALE1" = 1.25 milesDESIGNEDDRAWINGCHECKEDBMP02/09/11DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAPQTVJ!QTCPIG!EQWPV[OCRRGF!FGRVJ!VQ!HKTUV!ITQWPFYCVGTUWDLGEV!VQ!HWTVJGT!TGXKUKQP
Note: Data are not available for South Orange County at this time.
Source:
Sprotte, Fuller and Greenwood, 1980.
California Division of Mines and Geology;
California Geological Survey
"K
0 2.5 51.25
Miles
0 4 82
Kilometers
LEGEND
Depth To First Groundwater Contours
City Boundaries
OCWD Groundwater Basin Protection Boundary
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2e_DepthToGroundwaterLt5ft_20110215.mxdFIGURE
XVI-2eJOBTITLESCALE1" = 1.25 milesDESIGNEDDRAWINGCHECKEDBMP02/09/11DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAPQTVJ!QTCPIG!EQWPV[OCRRGF!UJCNNQY!ITQWPFYCVGTUWDLGEV!VQ!HWTVJGT!TGXKUKQP
Note: Data are not available for South Orange County at this time.
Source:
Sprotte, Fuller and Greenwood, 1980.
California Division of Mines and Geology;
California Geological Survey
"K
0 2.5 51.25
Miles
0 4 82
Kilometers
LEGEND
City Boundaries
OCWD Groundwater Basin Protection Boundary
Depth To Groundwater
<= 5'
5-10'
PROJECT
LOCATION
ORANGE COUNTYORANGE COUNTY
LOS ANGELES COUNTYLOS ANGELES COUNTY
P:\9526E\6-GIS\Mxds\Reports\InfiltrationFeasability_20110215\9526E_FigureXVI-2g_InfiltrationFinal_20110215.mxdFIGURE
XVI-2gJOBTITLESCALE1" = 1.8 milesDESIGNEDDRAWINGCHECKEDBMP04/22/10DATEJOB NO.9526-ETHTHQTCPIG!EQWPV[KPHKNVTCVKQP!UVWF[ORANGE CO.CAKPHKNVTCVKQP!CPCN[UKUQXGTNCRRKPI!EQPUVTCKPVNQECVKQPUUWDLGEV!VQ!HWTVJGT!TGXKUKQP
Analysis Layers Included: 1. Hydrologic Soil Group D, 2. Landslide
Hazard Zone, 3. Groundwater Protection Areas 4. Approximate
Selinium Area, 5. Depth to Groundwater <= 5'
Note: Screening datasets are not exhaustive. The applicant should
always conduct a review of available site-specific information
relative to infiltration constraints as part of assessing the feasibility of
stormwater infiltration.
Source;
Infiltration Constraint Analysis: PACE/Geosyntec
0 3.6 7.21.8
Miles
0 5 102.5
Kilometers
LEGEND
OCWD Groundwater Basin Protection Boundary
City Boundaries
Infiltration Constraints
1 Constraint
2 Overlapping Constraints
3 Overlapping Constraints
4 Overlapping Constraints
PROJECT
LOCATION
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LOCATION
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund
NBCC WQMP 20190710.docx
Attachment D - DCV and Water Quality Credit Calculations
Drainage Area d ,in TDA (sf)TDA (acre)Imp Area (acre)% Imp C DCV (cf)Existing0.75 303,980 6.98 5.81 0.83 0.77 14,721 Proposed0.75 303,980 6.98 5.13 0.75 0.71 13,537 d = Precipitation DepthC = (0.75 x Imp Area) + 0.15DCV = (d/12) x (TDA) x CNewport Beach Country Club DCV Summary
Water Quality Management Plan (WQMP)
Newport Beach Country Club
Golf Realty Fund
NBCC WQMP 20190710.docx
Attachment E - Fact Sheets/Operation and Maintenance
GENERAL NOTES
INSTALLATION NOTES
SITE SPECIFIC DATA
www.modularwetlands.com
Maintenance Guidelines for
Modular Wetland System - Linear
Maintenance Summary
o Remove Trash from Screening Device – average maintenance interval is 6 to 12 months.
(5 minute average service time).
o Remove Sediment from Separation Chamber – average maintenance interval is 12 to 24 months.
(10 minute average service time).
o Replace Cartridge Filter Media – average maintenance interval 12 to 24 months.
(10-15 minute per cartridge average service time).
o Replace Drain Down Filter Media – average maintenance interval is 12 to 24 months.
(5 minute average service time).
o Trim Vegetation – average maintenance interval is 6 to 12 months.
(Service time varies).
System Diagram
Access to screening device, separation
chamber and cartridge filter
Access to drain
down filter
Pre-Treatment
Chamber
Biofiltration Chamber
Discharge
Chamber
Outflow
Pipe
Inflow Pipe
(optional)
www.modularwetlands.com
Maintenance Procedures
Screening Device
1. Remove grate or manhole cover to gain access to the screening device in the Pre-
Treatment Chamber. Vault type units do not have screening device. Maintenance
can be performed without entry.
2. Remove all pollutants collected by the screening device. Removal can be done
manually or with the use of a vacuum truck. The hose of the vacuum truck will not
damage the screening device.
3. Screening device can easily be removed from the Pre-Treatment Chamber to gain
access to separation chamber and media filters below. Replace grate or manhole
cover when completed.
Separation Chamber
1. Perform maintenance procedures of screening device listed above before
maintaining the separation chamber.
2. With a pressure washer spray down pollutants accumulated on walls and cartridge
filters.
3. Vacuum out Separation Chamber and remove all accumulated pollutants. Replace
screening device, grate or manhole cover when completed.
Cartridge Filters
1. Perform maintenance procedures on screening device and separation chamber
before maintaining cartridge filters.
2. Enter separation chamber.
3. Unscrew the two bolts holding the lid on each cartridge filter and remove lid.
4. Remove each of 4 to 8 media cages holding the media in place.
5. Spray down the cartridge filter to remove any accumulated pollutants.
6. Vacuum out old media and accumulated pollutants.
7. Reinstall media cages and fill with new media from manufacturer or outside
supplier. Manufacturer will provide specification of media and sources to purchase.
8. Replace the lid and tighten down bolts. Replace screening device, grate or
manhole cover when completed.
Drain Down Filter
1. Remove hatch or manhole cover over discharge chamber and enter chamber.
2. Unlock and lift drain down filter housing and remove old media block. Replace with
new media block. Lower drain down filter housing and lock into place.
3. Exit chamber and replace hatch or manhole cover.
www.modularwetlands.com
Maintenance Notes
1. Following maintenance and/or inspection, it is recommended the maintenance
operator prepare a maintenance/inspection record. The record should include any
maintenance activities performed, amount and description of debris collected, and
condition of the system and its various filter mechanisms.
2. The owner should keep maintenance/inspection record(s) for a minimum of five
years from the date of maintenance. These records should be made available to
the governing municipality for inspection upon request at any time.
3. Transport all debris, trash, organics and sediments to approved facility for disposal
in accordance with local and state requirements.
4. Entry into chambers may require confined space training based on state and local
regulations.
5. No fertilizer shall be used in the Biofiltration Chamber.
6. Irrigation should be provided as recommended by manufacturer and/or landscape
architect. Amount of irrigation required is dependent on plant species. Some plants
may require irrigation.
www.modularwetlands.com
Maintenance Procedure Illustration
Screening Device
The screening device is located directly
under the manhole or grate over the
Pre-Treatment Chamber. It’s mounted
directly underneath for easy access
and cleaning. Device can be cleaned by
hand or with a vacuum truck.
Separation Chamber
The separation chamber is located
directly beneath the screening device.
It can be quickly cleaned using a
vacuum truck or by hand. A pressure
washer is useful to assist in the
cleaning process.
www.modularwetlands.com
Cartridge Filters
The cartridge filters are located in the
Pre-Treatment chamber connected to
the wall adjacent to the biofiltration
chamber. The cartridges have
removable tops to access the
individual media filters. Once the
cartridge is open media can be
easily removed and replaced by hand
or a vacuum truck.
Drain Down Filter
The drain down filter is located in the
Discharge Chamber. The drain filter
unlocks from the wall mount and hinges
up. Remove filter block and replace with
new block.
www.modularwetlands.com
Trim Vegetation
Vegetation should be maintained in the
same manner as surrounding vegetation
and trimmed as needed. No fertilizer shall
be used on the plants. Irrigation
per the recommendation of the
manufacturer and or landscape
architect. Different types of vegetation
requires different amounts of
irrigation.
www.modularwetlands.com
Inspection Form
Modular Wetland System, Inc.
P. 760.433-7640
F. 760-433-3176
E. Info@modularwetlands.com
For Office Use Only
(city) (Zip Code)(Reviewed By)
Owner / Management Company
(Date)
Contact Phone ( )_
Inspector Name Date / / Time AM / PM
Weather Condition Additional Notes
Yes
Depth:
Yes No
Modular Wetland System Type (Curb, Grate or UG Vault):Size (22', 14' or etc.):
Other Inspection Items:
Storm Event in Last 72-hours? No Yes Type of Inspection Routine Follow Up Complaint Storm
Office personnel to complete section to
the left.
2972 San Luis Rey Road, Oceanside, CA 92058 P (760) 433-7640 F (760) 433-3176
Inspection Report
Modular Wetlands System
Is the filter insert (if applicable) at capacity and/or is there an accumulation of debris/trash on the shelf system?
Does the cartridge filter media need replacement in pre-treatment chamber and/or discharge chamber?
Any signs of improper functioning in the discharge chamber? Note issues in comments section.
Chamber:
Is the inlet/outlet pipe or drain down pipe damaged or otherwise not functioning properly?
Structural Integrity:
Working Condition:
Is there evidence of illicit discharge or excessive oil, grease, or other automobile fluids entering and clogging the
unit?
Is there standing water in inappropriate areas after a dry period?
Damage to pre-treatment access cover (manhole cover/grate) or cannot be opened using normal lifting
pressure?
Damage to discharge chamber access cover (manhole cover/grate) or cannot be opened using normal lifting
pressure?
Does the MWS unit show signs of structural deterioration (cracks in the wall, damage to frame)?
Project Name
Project Address
Inspection Checklist
CommentsNo
Does the depth of sediment/trash/debris suggest a blockage of the inflow pipe, bypass or cartridge filter? If yes,
specify which one in the comments section. Note depth of accumulation in in pre-treatment chamber.
Is there a septic or foul odor coming from inside the system?
Is there an accumulation of sediment/trash/debris in the wetland media (if applicable)?
Is it evident that the plants are alive and healthy (if applicable)? Please note Plant Information below.
Sediment / Silt / Clay
Trash / Bags / Bottles
Green Waste / Leaves / Foliage
Waste:Plant Information
No Cleaning Needed
Recommended Maintenance
Additional Notes:
Damage to Plants
Plant Replacement
Plant Trimming
Schedule Maintenance as Planned
Needs Immediate Maintenance
www.modularwetlands.com
Maintenance Report
Modular Wetland System, Inc.
P. 760.433-7640
F. 760-433-3176
E. Info@modularwetlands.com
For Office Use Only
(city) (Zip Code)(Reviewed By)
Owner / Management Company
(Date)
Contact Phone ( )_
Inspector Name Date / / Time AM / PM
Weather Condition Additional Notes
Site
Map #
Comments:
2972 San Luis Rey Road, Oceanside, CA 92058 P. 760.433.7640 F. 760.433.3176
Inlet and Outlet
Pipe Condition
Drain Down Pipe
Condition
Discharge Chamber
Condition
Drain Down Media
Condition
Plant Condition
Media Filter
Condition
Long:
MWS
Sedimentation
Basin
Total Debris
Accumulation
Condition of Media
25/50/75/100
(will be changed
@ 75%)
Operational Per
Manufactures'
Specifications
(If not, why?)
Lat:MWS
Catch Basins
GPS Coordinates
of Insert
Manufacturer /
Description / Sizing
Trash
Accumulation
Foliage
Accumulation
Sediment
Accumulation
Type of Inspection Routine Follow Up Complaint Storm Storm Event in Last 72-hours? No Yes
Office personnel to complete section to
the left.
Project Address
Project Name
Cleaning and Maintenance Report
Modular Wetlands System
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-51 May 19, 2011
XIV.5. Biotreatment BMP Fact Sheets (BIO)
Conceptual criteria for biotreatment BMP selection, design, and maintenance are contained in
Appendix XII. These criteria are generally applicable to the design of biotreatment BMPs in
Orange County and BMP-specific guidance is provided in the following fact sheets.
Note: Biotreatment BMPs shall be designed to provide the maximum feasible infiltration and ET based on
criteria contained in Appendix XI.2.
BIO-1: Bioretention with Underdrains
Bioretention stormwater treatment facilities are landscaped
shallow depressions that capture and filter stormwater
runoff. These facilities function as a soil and plant-based
filtration device that removes pollutants through a variety of
physical, biological, and chemical treatment processes. The
facilities normally consist of a ponding area, mulch layer,
planting soils, and plants. As stormwater passes down
through the planting soil, pollutants are filtered, adsorbed,
biodegraded, and sequestered by the soil and plants.
Bioretention with an underdrain are utilized for areas with
low permeability native soils or steep slopes where the
underdrain system that routes the treated runoff to the storm
drain system rather than depending entirely on infiltration.
Bioretention must be designed without an underdrain in areas of
high soil permeability.
Feasibility Screening Considerations
x If there are no hazards associated with infiltration (such as groundwater concerns, contaminant
plumes or geotechnical concerns), bioinfiltration facilities, which achieve partial infiltration,
should be used to maximize infiltration.
x Bioretention with underdrain facilities should be lined if contaminant plumes or geotechnical
concerns exist. If high groundwater is the reason for infiltration infeasibility, bioretention facilities
with underdrains do not need to be lined.
Opportunity Criteria
x Land use may include commercial, residential, mixed use, institutional, and subdivisions.
Bioretention may also be applied in parking lot islands, cul-de-sacs, traffic circles, road shoulders,
road medians, and next to buildings in planter boxes.
x Drainage area is ≤ 5 acres.
x Area is available for infiltration.
Also known as:
¾ Rain gardens with
underdrains
¾ Vegetated media filter
¾ Downspout planter boxes
Bioretention
Source: Geosyntec Consultants
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-52 May 19, 2011
x Site must have adequate relief between land surface and the stormwater conveyance system to
permit vertical percolation through the soil media and collection and conveyance in underdrain to
stormwater conveyance system.
OC-Specific Design Criteria and Considerations
□ Ponding depth should not exceed 18 inches; fencing may be required if ponding depth is
greater than 6 inches to mitigate drowning.
□ The minimum soil depth is 2 feet (3 feet is preferred).
□ The maximum drawdown time of the bioretention ponding area is 48 hours. The maximum
drawdown time of the planting media and gravel drainage layer is 96 hours, if applicable.
□
Infiltration pathways may need to be restricted due to the close proximity of roads, foundations,
or other infrastructure. A geomembrane liner, or other equivalent water proofing, may be placed
along the vertical walls to reduce lateral flows. This liner should have a minimum thickness of
30 mils.
□ If infiltration in bioretention location is hazardous due to groundwater or geotechnical concerns,
a geomembrane liner must be installed at the base of the bioretention facility. This liner should
have a minimum thickness of 30 mils.
□ The planting media placed in the cell shall be designed per the recommendations contained in
MISC-1: Planting/Storage Media
□ Plant materials should be tolerant of summer drought, ponding fluctuations, and saturated soil
conditions for 48 hours; native place species and/or hardy cultivars that are not invasive and do
not require chemical inputs should be used to the maximum extent feasible
□ The bioretention area should be covered with 2-4 inches (average 3 inches) or mulch at the
start and an additional placement of 1-2 inches of mulch should be added annually.
□ Underdrain should be sized with a 6 inch minimum diameter and have a 0.5% minimum slope.
Underdrain should be slotted polyvinyl chloride (PVC) pipe; underdrain pipe should be more
than 5 feet from tree locations (if space allows).
□ A gravel blanket or bedding is required for the underdrain pipe(s). At least 0.5 feet of washed
aggregate must be placed below, to the top, and to the sides of the underdrain pipe(s).
□ An overflow device is required at the top of the bioretention area ponding depth.
□ Dispersed flow or energy dissipation (i.e. splash rocks) for piped inlets should be provided at
basin inlet to prevent erosion.
□ Ponding area side slopes shall be no steeper than 3:1 (H:V) unless designed as a planter box
BMP with appropriate consideration for trip and fall hazards.
Simple Sizing Method for Bioretention with Underdrain
If the Simple Design Capture Volume Sizing Method described in Appendix III.3.1 is used to size a
bioretention with underdrain facility, the user selects the basin depth and then determines the appropriate
surface area to capture the DCV. The sizing steps are as follows:
Step 1: Determine DCV
Calculate the DCV using the Simple Design Capture Volume Sizing Method described in Appendix
III.3.1.
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-53 May 19, 2011
Step 2: Verify that the Ponding Depth will Draw Down within 48 Hours
The ponding area drawdown time can be calculated using the following equation:
DDP = (dP / KMEDIA) × 12 in/ft
Where:
DDP = time to drain ponded water, hours
dP = depth of ponding above bioretention area, ft (not to exceed 1.5 ft)
KMEDIA = media design infiltration rate, in/hr (equivalent to the media hydraulic conductivity with a
factor of safety of 2; KMEDIA of 2.5 in/hr should be used unless other information is available)
If the drawdown time exceeds 48 hours, adjust ponding depth and/or media infiltration rate until 48
hour drawdown time is achieved.
Step 3: Determine the Depth of Water Filtered During Design Capture Storm
The depth of water filtered during the design capture storm can be estimated as the amount routed
through the media during the storm, or the ponding depth, whichever is smaller.
dFILTERED = Minimum [ ((KMEDIA × TROUTING)/12), dP]
Where:
dFILTERED = depth of water that may be considered to be filtered during the design storm event, ft
KMEDIA = media design infiltration rate, in/hr (equivalent to the media hydraulic conductivity with a
factor of safety of 2; KMEDIA of 2.5 in/hr should be used unless other information is available)
TROUTING = storm duration that may be assumed for routing calculations; this should be assumed to be
no greater than 3 hours. If the designer desires to account for further routing effects, the Capture
Efficiency Method for Volume-Based, Constant Drawdown BMPs (See Appendix III.3.2) should be
used.
dP = depth of ponding above bioretention area, ft (not to exceed 1.5 ft)
Step 4: Determine the Facility Surface Area
A = DCV/ (dP + dFILTERED)
Where:
A = required area of bioretention facility, sq-ft
DCV = design capture volume, cu-ft
dFILTERED = depth of water that may be considered to be filtered during the design storm event, ft
dP = depth of ponding above bioretention area, ft (not to exceed 1.5 ft)
Capture Efficiency Method for Bioretention with Underdrains
If the bioretention geometry has already been defined and the user wishes to account more explicitly for
routing, the user can determine the required footprint area using the Capture Efficiency Method for
Volume-Based, Constant Drawdown BMPs (See Appendix III.3.2) to determine the fraction of the DCV
that must be provided to manage 80 percent of average annual runoff volume. This method accounts for
drawdown time different than 48 hours.
Step 1: Determine the drawdown time associated with the selected basin geometry
DD = (dp / KDESIGN) × 12 in/ft
Where:
DD = time to completely drain infiltration basin ponding depth, hours
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-54 May 19, 2011
dP = bioretention ponding depth, ft (should be less than or equal to 1.5 ft)
KDESIGN = design media infiltration rate, in/hr (assume 2.5 inches per hour unless otherwise proposed)
If drawdown is less than 3 hours, the drawdown time should be rounded to 3 hours or the Capture
Efficiency Method for Flow-based BMPs (See Appendix III.3.3) shall be used.
Step 2: Determine the Required Adjusted DCV for this Drawdown Time
Use the Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs (See Appendix III.3.2)
to calculate the fraction of the DCV the basin must hold to achieve 80 percent capture of average annual
stormwater runoff volume based on the basin drawdown time calculated above.
Step 3: Determine the Basin Infiltrating Area Needed
The required infiltrating area (i.e. the surface area of the top of the media layer) can be calculated using
the following equation:
A = Design Volume / dp
Where:
A = required infiltrating area, sq-ft (measured at the media surface)
Design Volume = fraction of DCV, adjusted for drawdown, cu-ft (see Step 2)
dp = ponding depth of water stored in bioretention area, ft (from Step 1)
This does not include the side slopes, access roads, etc. which would increase bioretention footprint. If
the area required is greater than the selected basin area, adjust surface area or adjust ponding depth and
recalculate required area until the required area is achieved.
Configuration for Use in a Treatment Train
x Bioretention areas may be preceeded in a treatment train by HSCs in the drainage area, which
would reduce the required design volume of the bioretention cell. For example, bioretention could
be used to manage overflow from a cistern.
x Bioretention areas can be used to provide pretreatment for underground infiltration systems.
Additional References for Design Guidance
x CASQA BMP Handbook for New and Redevelopment:
http://www.cabmphandbooks.com/Documents/Development/TC-32.pdf
x SMC LID Manual (pp 68):
http://www.lowimpactdevelopment.org/guest75/pub/All_Projects/SoCal_LID_Manual/SoCalL
ID_Manual_FINAL_040910.pdf
x Los Angeles County Stormwater BMP Design and Maintenance Manual, Chapter 5:
http://dpw.lacounty.gov/DES/design_manuals/StormwaterBMPDesignandMaintenance.pdf
x San Diego County LID Handbook Appendix 4 (Factsheet 7):
http://www.sdcounty.ca.gov/dplu/docs/LID-Appendices.pdf
Los Angeles Unified School District (LAUSD) Stormwater Technical Manual, Chapter 4:
http://www.laschools.org/employee/design/fs-studies-and-
reports/download/white_paper_report_material/Storm_Water_Technical_Manual_2009-opt-
red.pdf?version_id=76975850
x County of Los Angeles Low Impact Development Standards Manual, Chapter 5:
http://dpw.lacounty.gov/wmd/LA_County_LID_Manual.pdf
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-7 May 19, 2011
HSC-3: Street Trees
By intercepting rainfall, trees can provide several aesthetic and
stormwater benefits including peak flow control, increased
infiltration and ET, and runoff temperature reduction. The
volume of precipitation intercepted by the canopy reduces the
treatment volume required for downstream treatment BMPs.
Shading reduces the heat island effect as well as the
temperature of adjacent impervious surfaces, over which
stormwater flows, and thus reduces the heat transferred to
downstream receiving waters. Tree roots also strengthen the
soil structure and provide infiltrative pathways, simultaneously
reducing erosion potential and enhancing infiltration.
Feasibility Screening Considerations
Not applicable
Opportunity Criteria
Street trees can be incorporated in green streets designs along sidewalks, streets, parking lots, or driveways.
Street trees can be used in combination with bioretention systems along medians or in traffic
calming bays.
There must be sufficient space available to accommodate both the tree canopy and root system.
OC-Specific Design Criteria and Considerations
□
Mature tree canopy, height, and root system should not interfere with subsurface utilities,
suspended powerlines, buildings and foundations, or other existing or planned structures. Required setbacks should be adhered to.
□ Depending on space constarints, a 20 to 30 foot diameter canopy (at maturity) is recommended for stormwater mitigation.
□ Native, drought-tolerant species should be selected in order to minimize irrigation requirements and improve the long-term viability of trees.
□ Trees should not impede pedstrian or vehicle sight lines.
□ Planting locations should receive adequate sunlight and wind protection; other environmental
factors should be considered prior to planting.
□ Frequency and degree of vegetation management and maintenance should be considered with
respect to owner capabilities (e.g., staffing, funding, etc.).
□
Soils should be preserved in their natural condition (if appropriate for planting) or restored via
soil amendments to meet minimum criteria described in MISC-2: Amended Soils. If necessary, a landscape architect or plant biologist should be consulted.
□
A street tree selection guide, such as that specific to the City of Los Angeles, may need to be consulted to select species appropriate for the site design constraints (e.g., parkway size, tree
height, canopy spread, etc.)
□ Infiltration should not cause geotechnical hazards related to adjacent structures (buildings,
Also known as:
Canopy interception
Street trees
Source: Geosyntec Consultants
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-78 May 19, 2011
PRE-2: Catch Basin Insert Fact Sheet
Catch basin inserts are manufactured filters or fabric placed in
a drop inlet to remove sediment and debris and may include
sorbent media (oil absorbent pouches) to remove floating oils
and grease. Catch basin inserts are selected specifically based
upon the orientation of the inlet and the expected sediment
and debris loading.
Opportunity Criteria
x Catch basin inserts come in such a wide range of
configurations that it is practically impossible to generalize
the expected performance. Inserts should mainly be used for
catching coarse sediments and floatable trash and are
effective as pretreatment in combination with other types of
structures that are recognized as water quality treatment
BMPs. Trash and large objects can greatly reduce the effectiveness of catch basin inserts with
respect to sediment and hydrocarbon capture.
x Catch basin inserts are applicable for drainage area that include parking lots, vehicle
maintenance areas, and roadways with catch basins that discharge directly to a receiving water.
OC-Specific Design Criteria and Considerations
□ Frequent maintenance and the use of screens and grates to keep trash out may decrease the
likelihood of clogging and prevent obstruction and bypass of incoming flows.
□ Consult proprietors for specific criteria concerning the design of catch basin inserts.
□ Catch basin inserts can be installed with specific media for pollutants of concern.
Proprietary Manufacturer / Supplier Websites
x Table XIV.2 is a list of manufacturers that provide catch basin inserts. The inclusion of these
manufacturers does not represent an endorse of their products. Other devices and manufacturers
may be acceptable for pretreatment.
Table XIV.2: Proprietary Catch Basin Insert Manufacturer Websites
Device Manufacturer Website
AbTech Industries Ultra-
Urban Filter™ AbTech Industries www.abtechindustries.com
Aquashield Aqua-
Guardian™ Catch Basin
Insert
Aquashield™ Inc. www.aquashieldinc.com
Bowhead StreamGuard™ Bowhead Environmental & Safety,
Inc. http://www.shopbowhead.com/
Contech® Triton Catch
Basin Filter™
Contech® Construction Products
Inc. www.contech-cpi.com
Contech® Triton Curb Inlet
Filter™
Contech® Construction Products
Inc. www.contech-cpi.com
Also known as:
¾ Drop Inlet Filters
¾ Catch Basin Filters
Catch Basin Insert (DrainPac™)
TECHNICAL GUIDANCE DOCUMENT APPENDICES
XIV-79 May 19, 2011
Table XIV.2: Proprietary Catch Basin Insert Manufacturer Websites
Device Manufacturer Website
Contech® Triton Basin
StormFilter™
Contech® Construction Products
Inc. www.contech-cpi.com
Contech® Curb Inlet
StormFilter™
Contech® Construction Products
Inc. www.contech-cpi.com
Curb Inlet Basket SunTree Technologies Inc. www.suntreetech.com
Curb Inlet Grates EcoSense International™ http://www.ecosenseint.com/
DrainPacTM United Storm Water, Inc. http://www.unitedstormwater.com
Grate Inlet Skimmer Box SunTree Technologies Inc. www.suntreetech.com
KriStar FloGard+PLUS® KriStar Enterprises Inc. www.kristar.com
KriStar FloGard® KriStar Enterprises Inc. www.kristar.com
KriStar FloGard LoPro
Matrix Filter® KriStar Enterprises Inc. www.kristar.com
Nyloplast Storm-PURE
Catch Basin Insert
Nyloplast Engineered Surface
Drainage Products www.nyloplast-us.com
StormBasin® FabCo® Industries Inc. www.fabco-industries.com
Stormdrain Solutions
Interceptor FabCo® Industries Inc. www.fabco-industries.com
Stormdrain Solutions
Inceptor® Stormdrain Solutions www.stormdrains.com
StormPod® FabCo® Industries Inc. www.fabco-industries.com
Stormwater Filtration
Systems EcoSense International™ http://www.ecosenseint.com/
Ultra-CurbGuard® UltraTech International Inc. www.spillcontainment.com
Ultra-DrainGuard® UltraTech International Inc. www.spillcontainment.com
Ultra-GrateGuard® UltraTech International Inc. www.spillcontainment.com
Ultra-GutterGuard® UltraTech International Inc. www.spillcontainment.com
Ultra-InletGuard® UltraTech International Inc. www.spillcontainment.com
Spill Prevention, Control & Cleanup SC-11
January 2003 California Stormwater BMP Handbook 1 of 6
Municipal
www.cabmphandbooks.com
Description
Spills and leaks, if not properly controlled, can adversely impact
the storm drain system and receiving waters. Due to the type of
work or the materials involved, many activities that occur either
at a municipal facility or as a part of municipal field programs
have the potential for accidental spills and leaks. Proper spill
response planning and preparation can enable municipal
employees to effectively respond to problems when they occur
and minimize the discharge of pollutants to the environment.
Approach
An effective spill response and control plan should include:
- Spill/leak prevention measures;
- Spill response procedures;
- Spill cleanup procedures;
- Reporting; and
- Training
A well thought out and implemented plan can prevent
pollutants from entering the storm drainage system and can
be used as a tool for training personnel to prevent and
control future spills as well.
Pollution Prevention
Develop and implement a Spill Prevention Control and
Response Plan. The plan should include:
Objectives
Cover
Contain
Educate
Reduce/Minimize
Product Substitution
Targeted Constituents
Sediment
Nutrients ;
Trash
Metals ;
Bacteria
Oil and Grease ;
Organics ;
Oxygen Demanding ;
SC-11 Spill Prevention, Control & Cleanup
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- A description of the facility, the address, activities and materials involved
- Identification of key spill response personnel
- Identification of the potential spill areas or operations prone to spills/leaks
- Identification of which areas should be or are bermed to contain spills/leaks
- Facility map identifying the key locations of areas, activities, materials, structural BMPs,
etc.
- Material handling procedures
- Spill response procedures including:
- Assessment of the site and potential impacts
- Containment of the material
- Notification of the proper personnel and evacuation procedures
- Clean up of the site
- Disposal of the waste material and
- Proper record keeping
Product substitution – use less toxic materials (i.e. use water based paints instead of oil
based paints)
Recycle, reclaim, or reuse materials whenever possible. This will reduce the amount of
materials that are brought into the facility or into the field.
Suggested Protocols
Spill/Leak Prevention Measures
If possible, move material handling indoors, under cover, or away from storm drains or
sensitive water bodies.
Properly label all containers so that the contents are easily identifiable.
Berm storage areas so that if a spill or leak occurs, the material is contained.
Cover outside storage areas either with a permanent structure or with a seasonal one such as
a tarp so that rain can not come into contact with the materials.
Check containers (and any containment sumps) often for leaks and spills. Replace
containers that are leaking, corroded, or otherwise deteriorating with containers in good
condition. Collect all spilled liquids and properly dispose of them.
Spill Prevention, Control & Cleanup SC-11
January 2003 California Stormwater BMP Handbook 3 of 6
Municipal
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Store, contain and transfer liquid materials in such a manner that if the container is
ruptured or the contents spilled, they will not discharge, flow or be washed into the storm
drainage system, surface waters, or groundwater.
Place drip pans or absorbent materials beneath all mounted taps and at all potential drip
and spill locations during the filling and unloading of containers. Any collected liquids or
soiled absorbent materials should be reused/recycled or properly disposed of.
For field programs, only transport the minimum amount of material needed for the daily
activities and transfer materials between containers at a municipal yard where leaks and
spill are easier to control.
If paved, sweep and clean storage areas monthly, do not use water to hose down the area
unless all of the water will be collected and disposed of properly.
Install a spill control device (such as a tee section) in any catch basins that collect runoff
from any storage areas if the materials stored are oil, gas, or other materials that separate
from and float on water. This will allow for easier cleanup if a spill occurs.
If necessary, protect catch basins while conducting field activities so that if a spill occurs, the
material will be contained.
Training
Educate employees about spill prevention, spill response and cleanup on a routine basis.
Well-trained employees can reduce human errors that lead to accidental releases or spills:
- The employees should have the tools and knowledge to immediately begin cleaning up a
spill if one should occur.
- Employees should be familiar with the Spill Prevention Control and Countermeasure
Plan if one is available.
Training of staff from all municipal departments should focus on recognizing and reporting
potential or current spills/leaks and who they should contact.
Employees responsible for aboveground storage tanks and liquid transfers for large bulk
containers should be thoroughly familiar with the Spill Prevention Control and
Countermeasure Plan and the plan should be readily available.
Spill Response and Prevention
Identify key spill response personnel and train employees on who they are.
Store and maintain appropriate spill cleanup materials in a clearly marked location near
storage areas; and train employees to ensure familiarity with the site’s spill control plan
and/or proper spill cleanup procedures.
Locate spill cleanup materials, such as absorbents, where they will be readily accessible (e.g.
near storage and maintenance areas, on field trucks).
SC-11 Spill Prevention, Control & Cleanup
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Follow the Spill Prevention Control and Countermeasure Plan if one is available.
If a spill occurs, notify the key spill response personnel immediately. If the material is
unknown or hazardous, the local fire department may also need to be contacted.
If safe to do so, attempt to contain the material and block the nearby storm drains so that the
area impacted is minimized. If the material is unknown or hazardous wait for properly
trained personnel to contain the materials.
Perform an assessment of the area where the spill occurred and the downstream area that it
could impact. Relay this information to the key spill response and clean up personnel.
Spill Cleanup Procedures
Small non-hazardous spills
- Use a rag, damp cloth or absorbent materials for general clean up of liquids
- Use brooms or shovels for the general clean up of dry materials
- If water is used, it must be collected and properly disposed of. The wash water can not
be allowed to enter the storm drain.
- Dispose of any waste materials properly
- Clean or dispose of any equipment used to clean up the spill properly
Large non-hazardous spills
- Use absorbent materials for general clean up of liquids
- Use brooms, shovels or street sweepers for the general clean up of dry materials
- If water is used, it must be collected and properly disposed of. The wash water can not
be allowed to enter the storm drain.
- Dispose of any waste materials properly
- Clean or dispose of any equipment used to clean up the spill properly
For hazardous or very large spills, a private cleanup company or Hazmat team may need to
be contacted to assess the situation and conduct the cleanup and disposal of the materials.
Chemical cleanups of material can be achieved with the use of absorbents, gels, and foams.
Remove the adsorbent materials promptly and dispose of according to regulations.
If the spilled material is hazardous, then the used cleanup materials are also hazardous and
must be sent to a certified laundry (rags) or disposed of as hazardous waste.
Reporting
Report any spills immediately to the identified key municipal spill response personnel.
Spill Prevention, Control & Cleanup SC-11
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Report spills in accordance with applicable reporting laws. Spills that pose an immediate
threat to human health or the environment must be reported immediately to the Office of
Emergency Service (OES)
Spills that pose an immediate threat to human health or the environment may also need to
be reported within 24 hours to the Regional Water Quality Control Board.
Federal regulations require that any oil spill into a water body or onto an adjoining shoreline
be reported to the National Response Center (NRC) at 800-424-8802 (24 hour)
After the spill has been contained and cleaned up, a detailed report about the incident
should be generated and kept on file (see the section on Reporting below). The incident may
also be used in briefing staff about proper procedures
Other Considerations
State regulations exist for facilities with a storage capacity of 10,000 gallons or more of
petroleum to prepare a Spill Prevention Control and Countermeasure Plan (SPCC) Plan
(Health & Safety Code Chapter 6.67).
State regulations also exist for storage of hazardous materials (Health & Safety Code Chapter
6.95), including the preparation of area and business plans for emergency response to the
releases or threatened releases.
Consider requiring smaller secondary containment areas (less than 200 sq. ft.) to be
connected to the sanitary sewer, if permitted to do so, prohibiting any hard connections to
the storm drain.
Requirements
Costs
Will vary depending on the size of the facility and the necessary controls.
Prevention of leaks and spills is inexpensive. Treatment and/or disposal of wastes,
contaminated soil and water is very expensive
Maintenance
This BMP has no major administrative or staffing requirements. However, extra time is
needed to properly handle and dispose of spills, which results in increased labor costs
Supplemental Information
Further Detail of the BMP
Reporting
Record keeping and internal reporting represent good operating practices because they can
increase the efficiency of the response and containment of a spill. A good record keeping system
helps the municipality minimize incident recurrence, correctly respond with appropriate
containment and cleanup activities, and comply with legal requirements.
A record keeping and reporting system should be set up for documenting spills, leaks, and other
discharges, including discharges of hazardous substances in reportable quantities. Incident
records describe the quality and quantity of non-stormwater discharges to the storm drain.
SC-11 Spill Prevention, Control & Cleanup
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These records should contain the following information:
Date and time of the incident
Weather conditions
Duration of the spill/leak/discharge
Cause of the spill/leak/discharge
Response procedures implemented
Persons notified
Environmental problems associated with the spill/leak/discharge
Separate record keeping systems should be established to document housekeeping and
preventive maintenance inspections, and training activities. All housekeeping and preventive
maintenance inspections should be documented. Inspection documentation should contain the
following information:
The date and time the inspection was performed
Name of the inspector
Items inspected
Problems noted
Corrective action required
Date corrective action was taken
Other means to document and record inspection results are field notes, timed and dated
photographs, videotapes, and drawings and maps.
Examples
The City of Palo Alto includes spill prevention and control as a major element of its highly
effective program for municipal vehicle maintenance shops.
References and Resources
King County Stormwater Pollution Control Manual - http://dnr.metrokc.gov/wlr/dss/spcm.htm
Orange County Stormwater Program
http://www.ocwatersheds.com/stormwater/swp_introduction.asp
San Diego Stormwater Co-permittees Jurisdictional Urban Runoff Management Program
(URMP)
http://www.projectcleanwater.org/pdf/Model%20Program%20Municipal%20Facilities.pdf
Parking/Storage Area Maintenance SC-43
January 2003 California Stormwater BMP Handbook 1 of 4
Municipal
www.cabmphandbooks.com
Description
Parking lots and storage areas can contribute a number of
substances, such as trash, suspended solids, hydrocarbons, oil
and grease, and heavy metals that can enter receiving waters
through stormwater runoff or non-stormwater discharges. The
following protocols are intended to prevent or reduce the
discharge of pollutants from parking/storage areas and include
using good housekeeping practices, following appropriate
cleaning BMPs, and training employees.
Approach
Pollution Prevention
Encourage alternative designs and maintenance strategies for
impervious parking lots. (See New Development and
Redevelopment BMP Handbook).
Keep accurate maintenance logs to evaluate BMP
implementation.
Suggested Protocols
General
Keep the parking and storage areas clean and orderly.
Remove debris in a timely fashion.
Allow sheet runoff to flow into biofilters (vegetated strip and
swale) and/or infiltration devices.
Utilize sand filters or oleophilic collectors for oily waste in low
concentrations.
Objectives
Cover
Contain
Educate
Reduce/Minimize
Product Substitution
Targeted Constituents
Sediment ;
Nutrients ;
Trash ;
Metals ;
Bacteria ;
Oil and Grease ;
Organics ;
Oxygen Demanding ;
SC-43 Parking/Storage Area Maintenance
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Arrange rooftop drains to prevent drainage directly onto paved surfaces.
Design lot to include semi-permeable hardscape.
Controlling Litter
Post “No Littering” signs and enforce anti-litter laws.
Provide an adequate number of litter receptacles.
Clean out and cover litter receptacles frequently to prevent spillage.
Provide trash receptacles in parking lots to discourage litter.
Routinely sweep, shovel and dispose of litter in the trash.
Surface cleaning
Use dry cleaning methods (e.g. sweeping or vacuuming) to prevent the discharge of
pollutants into the stormwater conveyance system.
Establish frequency of public parking lot sweeping based on usage and field observations of
waste accumulation.
Sweep all parking lots at least once before the onset of the wet season.
If water is used follow the procedures below:
- Block the storm drain or contain runoff.
- Wash water should be collected and pumped to the sanitary sewer or discharged to a
pervious surface, do not allow wash water to enter storm drains.
- Dispose of parking lot sweeping debris and dirt at a landfill.
When cleaning heavy oily deposits:
- Use absorbent materials on oily spots prior to sweeping or washing.
- Dispose of used absorbents appropriately.
Surface Repair
Pre-heat, transfer or load hot bituminous material away from storm drain inlets.
Apply concrete, asphalt, and seal coat during dry weather to prevent contamination form
contacting stormwater runoff.
Cover and seal nearby storm drain inlets (with waterproof material or mesh) and manholes
before applying seal coat, slurry seal, etc., where applicable. Leave covers in place until job
is complete and until all water from emulsified oil sealants has drained or evaporated. Clean
any debris from these covered manholes and drains for proper disposal.
Parking/Storage Area Maintenance SC-43
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Use only as much water as necessary for dust control, to avoid runoff.
Catch drips from paving equipment that is not in use with pans or absorbent material placed
under the machines. Dispose of collected material and absorbents properly.
Inspection
Have designated personnel conduct inspections of the parking facilities and stormwater
conveyance systems associated with them on a regular basis.
Inspect cleaning equipment/sweepers for leaks on a regular basis.
Training
Provide regular training to field employees and/or contractors regarding cleaning of paved
areas and proper operation of equipment.
Train employees and contractors in proper techniques for spill containment and cleanup.
Spill Response and Prevention
Refer to SC-11, Spill Prevention, Control & Cleanup.
Keep your Spill Prevention Control and countermeasure (SPCC) plan up-to-date, nad
implement accordingly.
Have spill cleanup materials readily available and in a known location.
Cleanup spills immediately and use dry methods if possible.
Properly dispose of spill cleanup material.
Other Considerations
Limitations related to sweeping activities at large parking facilities may include high
equipment costs, the need for sweeper operator training, and the inability of current sweeper
technology to remove oil and grease.
Requirements
Costs
Cleaning/sweeping costs can be quite large, construction and maintenance of stormwater
structural controls can be quite expensive as well.
Maintenance
Sweep parking lot to minimize cleaning with water.
Clean out oil/water/sand separators regularly, especially after heavy storms.
Clean parking facilities on a regular basis to prevent accumulated wastes and pollutants
from being discharged into conveyance systems during rainy conditions.
SC-43 Parking/Storage Area Maintenance
4 of 4 California Stormwater BMP Handbook January 2003
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Supplemental Information
Further Detail of the BMP
Surface Repair
Apply concrete, asphalt, and seal coat during dry weather to prevent contamination form
contacting stormwater runoff. Where applicable, cover and seal nearby storm drain inlets (with
waterproof material or mesh) and manholes before applying seal coat, slurry seal, etc. Leave
covers in place until job is complete and until all water from emulsified oil sealants has drained
or evaporated. Clean any debris from these covered manholes and drains for proper disposal.
Use only as much water as necessary for dust control, to avoid runoff.
References and Resources
http://www.stormwatercenter.net/
California’s Nonpoint Source Program Plan http://www.swrcb.ca.gov/nps/index.html
Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for
Small Municipalities. Prepared by City of Monterey, City of Santa Cruz, California Coastal
Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area
Governments, Woodward-Clyde, Central Coast Regional Water Quality control Board. July
1998 (Revised February 2002 by the California Coastal Commission).
Orange County Stormwater Program
http://www.ocwatersheds.com/StormWater/swp_introduction.asp
Oregon Association of Clean Water Agencies. Oregon Municipal Stormwater Toolbox for
Maintenance Practices. June 1998.
Pollution from Surface Cleaning Folder. 1996. Bay Area Stormwater Management Agencies
Association (BASMAA) http://www.basma.org
San Diego Stormwater Co-permittees Jurisdictional Urban Runoff Management Program
(URMP)
http://www.projectcleanwater.org/pdf/Model%20Program%20Municipal%20Facilities.pdf
Housekeeping Practices SC-60
January 2003 California Stormwater BMP Handbook 1 of 3
Municipal
www.cabmphandbooks.com
Description
Promote efficient and safe housekeeping practices (storage, use,
and cleanup) when handling potentially harmful materials such
as fertilizers, pesticides, cleaning solutions, paint products,
automotive products, and swimming pool chemicals. Related
information is provided in BMP fact sheets SC-11 Spill
Prevention, Control & Cleanup and SC-34 Waste Handling &
Disposal.
Approach
Pollution Prevention
Purchase only the amount of material that will be needed for
foreseeable use. In most cases this will result in cost savings
in both purchasing and disposal. See SC-61 Safer Alternative
Products for additional information.
Be aware of new products that may do the same job with less
environmental risk and for less or the equivalent cost. Total
cost must be used here; this includes purchase price,
transportation costs, storage costs, use related costs, clean up
costs and disposal costs.
Suggested Protocols
General
Keep work sites clean and orderly. Remove debris in a timely
fashion. Sweep the area.
Dispose of wash water, sweepings, and sediments, properly.
Recycle or dispose of fluids properly.
Establish a daily checklist of office, yard and plant areas to
confirm cleanliness and adherence to proper storage and
security. Specific employees should be assigned specific
inspection responsibilities and given the authority to remedy
any problems found.
Post waste disposal charts in appropriate locations detailing
for each waste its hazardous nature (poison, corrosive,
flammable), prohibitions on its disposal (dumpster, drain,
sewer) and the recommended disposal method (recycle,
sewer, burn, storage, landfill).
Summarize the chosen BMPs applicable to your operation and
post them in appropriate conspicuous places.
Objectives
Cover
Contain
Educate
Reduce/Minimize
Product Substitution
Targeted Constituents
Sediment ;
Nutrients ;
Trash ;
Metals ;
Bacteria ;
Oil and Grease ;
Organics ;
Oxygen Demanding ;
SC-60 Housekeeping Practices
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Require a signed checklist from every user of any hazardous material detailing amount
taken, amount used, amount returned and disposal of spent material.
Do a before audit of your site to establish baseline conditions and regular subsequent audits
to note any changes and whether conditions are improving or deteriorating.
Keep records of water, air and solid waste quantities and quality tests and their disposition.
Maintain a mass balance of incoming, outgoing and on hand materials so you know when
there are unknown losses that need to be tracked down and accounted for.
Use and reward employee suggestions related to BMPs, hazards, pollution reduction, work
place safety, cost reduction, alternative materials and procedures, recycling and disposal.
Have, and review regularly, a contingency plan for spills, leaks, weather extremes etc. Make
sure all employees know about it and what their role is so that it comes into force
automatically.
Training
Train all employees, management, office, yard, manufacturing, field and clerical in BMPs
and pollution prevention and make them accountable.
Train municipal employees who handle potentially harmful materials in good housekeeping
practices.
Train personnel who use pesticides in the proper use of the pesticides. The California
Department of Pesticide Regulation license pesticide dealers, certify pesticide applicators
and conduct onsite inspections.
Train employees and contractors in proper techniques for spill containment and cleanup.
The employee should have the tools and knowledge to immediately begin cleaning up a spill
if one should occur.
Spill Response and Prevention
Refer to SC-11, Spill Prevention, Control & Cleanup.
Keep your Spill Prevention Control and Countermeasure (SPCC) plant up-to-date, and
implement accordingly.
Have spill cleanup materials readily available and in a known location.
Cleanup spills immediately and use dry methods if possible.
Properly dispose of spill cleanup material.
Other Considerations
There are no major limitations to this best management practice.
There are no regulatory requirements to this BMP. Existing regulations already require
municipalities to properly store, use, and dispose of hazardous materials
Housekeeping Practices SC-60
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Requirements
Costs
Minimal cost associated with this BMP. Implementation of good housekeeping practices
may result in cost savings as these procedures may reduce the need for more costly BMPs.
Maintenance
Ongoing maintenance required to keep a clean site. Level of effort is a function of site size
and type of activities.
Supplemental Information
Further Detail of the BMP
The California Integrated Waste Management Board’s Recycling Hotline, 1-800-553-2962,
provides information on household hazardous waste collection programs and facilities.
Examples
There are a number of communities with effective programs. The most pro-active include Santa
Clara County and the City of Palo Alto, the City and County of San Francisco, and the
Municipality of Metropolitan Seattle (Metro).
References and Resources
British Columbia Lake Stewardship Society. Best Management Practices to Protect Water
Quality from Non-Point Source Pollution. March 2000.
http://www.nalms.org/bclss/bmphome.html#bmp
King County Stormwater Pollution Control Manual - http://dnr.metrokc.gov/wlr/dss/spcm.htm
Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for
Small Municipalities, Prepared by City of Monterey, City of Santa Cruz, California Coastal
Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area
Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July,
1998, Revised by California Coastal Commission, February 2002.
Orange County Stormwater Program
http://www.ocwatersheds.com/stormwater/swp_introduction.asp
San Mateo STOPPP - (http://stoppp.tripod.com/bmp.html)
Road and Street Maintenance SC-70
January 2003 California Stormwater BMP Handbook 1 of 9
Municipal
www.cabmphandbooks.com
Description
Streets, roads, and highways are significant sources of pollutants
in stormwater discharges, and operation and maintenance
(O&M) practices, if not conducted properly, can contribute to the
problem. Stormwater pollution from roadway and bridge
maintenance should be addressed on a site-specific basis. Use of
the procedures outlined below, that address street sweeping and
repair, bridge and structure maintenance, and unpaved roads
will reduce pollutants in stormwater.
Approach
Pollution Prevention
Use the least toxic materials available (e.g. water based
paints, gels or sprays for graffiti removal)
Recycle paint and other materials whenever possible.
Enlist the help of citizens to keep yard waste, used oil, and
other wastes out of the gutter.
Suggested Protocols
Street Sweeping and Cleaning
Maintain a consistent sweeping schedule. Provide minimum
monthly sweeping of curbed streets.
Perform street cleaning during dry weather if possible.
Objectives
Cover
Contain
Educate
Reduce/Minimize
Product Substitution
Targeted Constituents
Sediment ;
Nutrients
Trash ;
Metals ;
Bacteria
Oil and Grease ;
Organics ;
Oxygen Demanding ;
SC-70 Road and Street Maintenance
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Avoid wet cleaning or flushing of street, and utilize dry methods where possible.
Consider increasing sweeping frequency based on factors such as traffic volume, land use,
field observations of sediment and trash accumulation, proximity to water courses, etc. For
example:
- Increase the sweeping frequency for streets with high pollutant loadings, especially in
high traffic and industrial areas.
- Increase the sweeping frequency just before the wet season to remove sediments
accumulated during the summer.
- Increase the sweeping frequency for streets in special problem areas such as special
events, high litter or erosion zones.
Maintain cleaning equipment in good working condition and purchase replacement
equipment as needed. Old sweepers should be replaced with new technologically advanced
sweepers (preferably regenerative air sweepers) that maximize pollutant removal.
Operate sweepers at manufacturer requested optimal speed levels to increase effectiveness.
To increase sweeping effectiveness consider the following:
- Institute a parking policy to restrict parking in problematic areas during periods of street
sweeping.
- Post permanent street sweeping signs in problematic areas; use temporary signs if
installation of permanent signs is not possible.
- Develop and distribute flyers notifying residents of street sweeping schedules.
Regularly inspect vehicles and equipment for leaks, and repair immediately.
If available use vacuum or regenerative air sweepers in the high sediment and trash areas
(typically industrial/commercial).
Keep accurate logs of the number of curb-miles swept and the amount of waste collected.
Dispose of street sweeping debris and dirt at a landfill.
Do not store swept material along the side of the street or near a storm drain inlet.
Keep debris storage to a minimum during the wet season or make sure debris piles are
contained (e.g. by berming the area) or covered (e.g. with tarps or permanent covers).
Street Repair and Maintenance
Pavement marking
Schedule pavement marking activities for dry weather.
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Develop paint handling procedures for proper use, storage, and disposal of paints.
Transfer and load paint and hot thermoplastic away from storm drain inlets.
Provide drop cloths and drip pans in paint mixing areas.
Properly maintain application equipment.
Street sweep thermoplastic grindings. Yellow thermoplastic grindings may require special
handling as they may contain lead.
Paints containing lead or tributyltin are considered a hazardous waste and must be disposed
of properly.
Use water based paints whenever possible. If using water based paints, clean the application
equipment in a sink that is connected to the sanitary sewer.
Properly store leftover paints if they are to be kept for the next job, or dispose of properly.
Concrete installation and repair
Schedule asphalt and concrete activities for dry weather.
Take measures to protect any nearby storm drain inlets and adjacent watercourses, prior to
breaking up asphalt or concrete (e.g. place san bags around inlets or work areas).
Limit the amount of fresh concrete or cement mortar mixed, mix only what is needed for the
job.
Store concrete materials under cover, away from drainage areas. Secure bags of cement after
they are open. Be sure to keep wind-blown cement powder away from streets, gutters, storm
drains, rainfall, and runoff.
Return leftover materials to the transit mixer. Dispose of small amounts of hardened excess
concrete, grout, and mortar in the trash.
Do not wash sweepings from exposed aggregate concrete into the street or storm drain.
Collect and return sweepings to aggregate base stockpile, or dispose in the trash.
When making saw cuts in pavement, use as little water as possible and perform during dry
weather. Cover each storm drain inlet completely with filter fabric or plastic during the
sawing operation and contain the slurry by placing straw bales, sandbags, or gravel dams
around the inlets. After the liquid drains or evaporates, shovel or vacuum the slurry residue
from the pavement or gutter and remove from site. Alternatively, a small onsite vacuum
may be used to pick up the slurry as this will prohibit slurry from reaching storm drain
inlets.
Wash concrete trucks off site or in designated areas on site designed to preclude discharge of
wash water to drainage system.
SC-70 Road and Street Maintenance
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Patching, resurfacing, and surface sealing
Schedule patching, resurfacing and surface sealing for dry weather.
Stockpile materials away from streets, gutter areas, storm drain inlets or watercourses.
During wet weather, cover stockpiles with plastic tarps or berm around them if necessary to
prevent transport of materials in runoff.
Pre-heat, transfer or load hot bituminous material away from drainage systems or
watercourses.
Where applicable, cover and seal nearby storm drain inlets (with waterproof material or
mesh) and maintenance holes before applying seal coat, slurry seal, etc. Leave covers in
place until job is complete and until all water from emulsified oil sealants has drained or
evaporated. Clean any debris from covered maintenance holes and storm drain inlets when
the job is complete.
Prevent excess material from exposed aggregate concrete or similar treatments from
entering streets or storm drain inlets. Designate an area for clean up and proper disposal of
excess materials.
Use only as much water as necessary for dust control, to avoid runoff.
Sweep, never hose down streets to clean up tracked dirt. Use a street sweeper or vacuum
truck. Do not dump vacuumed liquid in storm drains.
Catch drips from paving equipment that is not in use with pans or absorbent material placed
under the machines. Dispose of collected material and absorbents properly.
Equipment cleaning maintenance and storage
Inspect equipment daily and repair any leaks. Place drip pans or absorbent materials under
heavy equipment when not in use.
Perform major equipment repairs at the corporation yard, when practical.
If refueling or repairing vehicles and equipment must be done onsite, use a location away
from storm drain inlets and watercourses.
Clean equipment including sprayers, sprayer paint supply lines, patch and paving
equipment, and mud jacking equipment at the end of each day. Clean in a sink or other area
(e.g. vehicle wash area) that is connected to the sanitary sewer.
Bridge and Structure Maintenance
Paint and Paint Removal
Transport paint and materials to and from job sites in containers with secure lids and tied
down to the transport vehicle.
Do not transfer or load paint near storm drain inlets or watercourses.
Road and Street Maintenance SC-70
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Test and inspect spray equipment prior to starting to paint. Tighten all hoses and
connections and do not overfill paint container.
Plug nearby storm drain inlets prior to starting painting where there is significant risk of a
spill reaching storm drains. Remove plugs when job is completed.
If sand blasting is used to remove paint, cover nearby storm drain inlets prior to starting
work.
Perform work on a maintenance traveler or platform, or use suspended netting or tarps to
capture paint, rust, paint removing agents, or other materials, to prevent discharge of
materials to surface waters if the bridge crosses a watercourse. If sanding, use a sander with
a vacuum filter bag.
Capture all clean-up water, and dispose of properly.
Recycle paint when possible (e.g. paint may be used for graffiti removal activities). Dispose
of unused paint at an appropriate household hazardous waste facility.
Graffiti Removal
Schedule graffiti removal activities for dry weather.
Protect nearby storm drain inlets prior to removing graffiti from walls, signs, sidewalks, or
other structures needing graffiti abatement. Clean up afterwards by sweeping or vacuuming
thoroughly, and/or by using absorbent and properly disposing of the absorbent.
When graffiti is removed by painting over, implement the procedures under Painting and
Paint Removal above.
Direct runoff from sand blasting and high pressure washing (with no cleaning agents) into a
landscaped or dirt area. If such an area is not available, filter runoff through an appropriate
filtering device (e.g. filter fabric) to keep sand, particles, and debris out of storm drains.
If a graffiti abatement method generates wash water containing a cleaning compound (such
as high pressure washing with a cleaning compound), plug nearby storm drains and
vacuum/pump wash water to the sanitary sewer.
Consider using a waterless and non-toxic chemical cleaning method for graffiti removal (e.g.
gels or spray compounds).
Repair Work
Prevent concrete, steel, wood, metal parts, tools, or other work materials from entering
storm drains or watercourses.
Thoroughly clean up the job site when the repair work is completed.
When cleaning guardrails or fences follow the appropriate surface cleaning methods
(depending on the type of surface) outlined in SC-71 Plaza & Sidewalk Cleaning fact sheet.
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If painting is conducted, follow the painting and paint removal procedures above.
If graffiti removal is conducted, follow the graffiti removal procedures above.
If construction takes place, see the Construction Activity BMP Handbook.
Recycle materials whenever possible.
Unpaved Roads and Trails
Stabilize exposed soil areas to prevent soil from eroding during rain events. This is
particularly important on steep slopes.
For roadside areas with exposed soils, the most cost-effective choice is to vegetate the area,
preferably with a mulch or binder that will hold the soils in place while the vegetation is
establishing. Native vegetation should be used if possible.
If vegetation cannot be established immediately, apply temporary erosion control
mats/blankets; a comma straw, or gravel as appropriate.
If sediment is already eroded and mobilized in roadside areas, temporary controls should be
installed. These may include: sediment control fences, fabric-covered triangular dikes,
gravel-filled burlap bags, biobags, or hay bales staked in place.
Non-Stormwater Discharges
Field crews should be aware of non-stormwater discharges as part of their ongoing street
maintenance efforts.
Refer to SC-10 Non-Stormwater Discharges
Identify location, time and estimated quantity of discharges.
Notify appropriate personnel.
Training
Train employees regarding proper street sweeping operation and street repair and
maintenance.
Instruct employees and subcontractors to ensure that measures to reduce the stormwater
impacts of roadway/bridge maintenance are being followed.
Require engineering staff and/or consulting A/E firms to address stormwater quality in new
bridge designs or existing bridge retrofits.
Use a training log or similar method to document training.
Train employees on proper spill containment and clean up, and in identifying non-
stormwater discharges.
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Spill Response and Prevention
Refer to SC-11, Spill Prevention, Control & Cleanup.
Keep your Spill Prevention Control and countermeasure (SPCC) plan up-to-date, and
implement accordingly.
Have spill cleanup materials readily available and in a known location.
Cleanup spills immediately and use dry methods if possible.
Properly dispose of spill cleanup material.
Other Considerations
Densely populated areas or heavily used streets may require parking regulations to clear
streets for cleaning.
No currently available conventional sweeper is effective at removing oil and grease.
Mechanical sweepers are not effective at removing finer sediments.
Limitations may arise in the location of new bridges. The availability and cost of land and
other economic and political factors may dictate where the placement of a new bridge will
occur. Better design of the bridge to control runoff is required if it is being placed near
sensitive waters.
Requirements
Costs
The maintenance of local roads and bridges is already a consideration of most community
public works or transportation departments. Therefore, the cost of pollutant reducing
management practices will involve the training and equipment required to implement these
new practices.
The largest expenditures for street sweeping programs are in staffing and equipment. The
capital cost for a conventional street sweeper is between $60,000 and $120,000. Newer
technologies might have prices approaching $180,000. The average useful life of a
conventional sweeper is about four years, and programs must budget for equipment
replacement. Sweeping frequencies will determine equipment life, so programs that sweep
more often should expect to have a higher cost of replacement.
A street sweeping program may require the following.
- Sweeper operators, maintenance, supervisory, and administrative personnel are
required.
- Traffic control officers may be required to enforce parking restrictions.
- Skillful design of cleaning routes is required for program to be productive.
- Arrangements must be made for disposal of collected wastes.
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If investing in newer technologies, training for operators must be included in operation and
maintenance budgets. Costs for public education are small, and mostly deal with the need to
obey parking restrictions and litter control. Parking tickets are an effective reminder to obey
parking rules, as well as being a source of revenue.
Maintenance
Not applicable
Supplemental Information
Further Detail of the BMP
Street sweeping
There are advantages and disadvantages to the two common types of sweepers. The best choice
depends on your specific conditions. Many communities find it useful to have a compliment of
both types in their fleet.
Mechanical Broom Sweepers - More effective at picking up large debris and cleaning wet streets.
Less costly to purchase and operate. Create more airborne dust.
Vacuum Sweepers - More effective at removing fine particles and associated heavy metals.
Ineffective at cleaning wet streets. Noisier than mechanical broom sweepers which may restrict
areas or times of operation. May require an advance vehicle to remove large debris.
Street Flushers - Not affected by biggest interference to cleaning, parked cars. May remove finer
sediments, moving them toward the gutter and stormwater inlets. For this reason, flushing fell
out of favor and is now used primarily after sweeping. Flushing may be effective for combined
sewer systems. Presently street flushing is not allowed under most NPDES permits.
Cross-Media Transfer of Pollutants
The California Air Resources Board (ARB) has established state ambient air quality standards
including a standard for respirable particulate matter (less than or equal to 10 microns in
diameter, symbolized as PM10). In the effort to sweep up finer sediments to remove attached
heavy metals, municipalities should be aware that fine dust, that cannot be captured by the
sweeping equipment and becomes airborne, could lead to issues of worker and public safety.
Bridges
Bridges that carry vehicular traffic generate some of the more direct discharges of runoff to
surface waters. Bridge scupper drains cause a direct discharge of stormwater into receiving
waters and have been shown to carry relatively high concentrations of pollutants. Bridge
maintenance also generates wastes that may be either directly deposited to the water below or
carried to the receiving water by stormwater. The following steps will help reduce the
stormwater impacts of bridge maintenance:
Site new bridges so that significant adverse impacts to wetlands, sensitive areas, critical
habitat, and riparian vegetation are minimized.
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Design new bridges to avoid the use of scupper drains and route runoff to land for treatment
control. Existing scupper drains should be cleaned on a regular basis to avoid
sediment/debris accumulation.
Reduce the discharge of pollutants to surface waters during maintenance by using
suspended traps, vacuums, or booms in the water to capture paint, rust, and paint removing
agents. Many of these wastes may be hazardous. Properly dispose of this waste by referring
to CA21 (Hazardous Waste Management) in the Construction Handbook.
Train employees and subcontractors to reduce the discharge of wastes during bridge
maintenance.
De-icing
Do not over-apply deicing salt and sand, and routinely calibrate spreaders.
Near reservoirs, restrict the application of deicing salt and redirect any runoff away from
reservoirs.
Consider using alternative deicing agents (less toxic, biodegradable, etc.).
References and Resources
Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for
Small Municipalities. Prepared by City of Monterey, City of Santa Cruz, California Coastal
Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area
Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July.
1998.
Orange County Stormwater Program
http://www.ocwatersheds.com/stormwater/swp_introduction.asp
Oregon Association of Clean Water Agencies. Oregon Municipal Stormwater Toolbox for
Maintenance Practices. June 1998.
Santa Clara Valley Urban Runoff Pollution Prevention Program. 1997 Urban Runoff
Management Plan. September 1997, updated October 2000.
Santa Clara Valley Urban Runoff Pollution Prevention Program. 2001. Fresh Concrete and
Mortar Application Best Management Practices for the Construction Industry. June.
Santa Clara Valley Urban Runoff Pollution Prevention Program. 2001. Roadwork and Paving
Best Management Practices for the Construction Industry. June.
United States Environmental Protection Agency (USEPA). 2002. Pollution Prevention/Good
Housekeeping for Municipal Operations Roadway and Bridge Maintenance. On-line
http://www.epa.gov/npdes/menuofbmps/poll_13.htm
Landscape Maintenance SC-73
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Description
Landscape maintenance activities include vegetation removal;
herbicide and insecticide application; fertilizer application;
watering; and other gardening and lawn care practices.
Vegetation control typically involves a combination of chemical
(herbicide) application and mechanical methods. All of these
maintenance practices have the potential to contribute pollutants
to the storm drain system. The major objectives of this BMP are
to minimize the discharge of pesticides, herbicides and fertilizers
to the storm drain system and receiving waters; prevent the
disposal of landscape waste into the storm drain system by
collecting and properly disposing of clippings and cuttings, and
educating employees and the public.
Approach
Pollution Prevention
Implement an integrated pest management (IPM) program.
IPM is a sustainable approach to managing pests by
combining biological, cultural, physical, and chemical tools.
Choose low water using flowers, trees, shrubs, and
groundcover.
Consider alternative landscaping techniques such as
naturescaping and xeriscaping.
Conduct appropriate maintenance (i.e. properly timed
fertilizing, weeding, pest control, and pruning) to help
preserve the landscapes water efficiency.
Objectives
Contain
Educate
Reduce/Minimize
Product Substitution
Targeted Constituents
Sediment ;
Nutrients ;
Trash ;
Metals
Bacteria
Oil and Grease
Organics
Oxygen Demanding ;
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Consider grass cycling (grass cycling is the natural recycling of grass by leaving the clippings
on the lawn when mowing. Grass clippings decompose quickly and release valuable
nutrients back into the lawn).
Suggested Protocols
Mowing, Trimming, and Weeding
Whenever possible use mechanical methods of vegetation removal (e.g mowing with tractor-
type or push mowers, hand cutting with gas or electric powered weed trimmers) rather than
applying herbicides. Use hand weeding where practical.
Avoid loosening the soil when conducting mechanical or manual weed control, this could
lead to erosion. Use mulch or other erosion control measures when soils are exposed.
Performing mowing at optimal times. Mowing should not be performed if significant rain
events are predicted.
Mulching mowers may be recommended for certain flat areas. Other techniques may be
employed to minimize mowing such as selective vegetative planting using low maintenance
grasses and shrubs.
Collect lawn and garden clippings, pruning waste, tree trimmings, and weeds. Chip if
necessary, and compost or dispose of at a landfill (see waste management section of this fact
sheet).
Place temporarily stockpiled material away from watercourses, and berm or cover stockpiles
to prevent material releases to storm drains.
Planting
Determine existing native vegetation features (location, species, size, function, importance)
and consider the feasibility of protecting them. Consider elements such as their effect on
drainage and erosion, hardiness, maintenance requirements, and possible conflicts between
preserving vegetation and the resulting maintenance needs.
Retain and/or plant selected native vegetation whose features are determined to be
beneficial, where feasible. Native vegetation usually requires less maintenance (e.g.,
irrigation, fertilizer) than planting new vegetation.
Consider using low water use groundcovers when planting or replanting.
Waste Management
Compost leaves, sticks, or other collected vegetation or dispose of at a permitted landfill. Do
not dispose of collected vegetation into waterways or storm drainage systems.
Place temporarily stockpiled material away from watercourses and storm drain inlets, and
berm or cover stockpiles to prevent material releases to the storm drain system.
Reduce the use of high nitrogen fertilizers that produce excess growth requiring more
frequent mowing or trimming.
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Avoid landscape wastes in and around storm drain inlets by either using bagging equipment
or by manually picking up the material.
Irrigation
Where practical, use automatic timers to minimize runoff.
Use popup sprinkler heads in areas with a lot of activity or where there is a chance the pipes
may be broken. Consider the use of mechanisms that reduce water flow to sprinkler heads if
broken.
Ensure that there is no runoff from the landscaped area(s) if re-claimed water is used for
irrigation.
If bailing of muddy water is required (e.g. when repairing a water line leak), do not put it in
the storm drain; pour over landscaped areas.
Irrigate slowly or pulse irrigate to prevent runoff and then only irrigate as much as is
needed.
Apply water at rates that do not exceed the infiltration rate of the soil.
Fertilizer and Pesticide Management
Utilize a comprehensive management system that incorporates integrated pest management
(IPM) techniques. There are many methods and types of IPM, including the following:
- Mulching can be used to prevent weeds where turf is absent, fencing installed to keep
rodents out, and netting used to keep birds and insects away from leaves and fruit.
- Visible insects can be removed by hand (with gloves or tweezers) and placed in soapy
water or vegetable oil. Alternatively, insects can be sprayed off the plant with water or in
some cases vacuumed off of larger plants.
- Store-bought traps, such as species-specific, pheromone-based traps or colored sticky
cards, can be used.
- Slugs can be trapped in small cups filled with beer that are set in the ground so the slugs
can get in easily.
- In cases where microscopic parasites, such as bacteria and fungi, are causing damage to
plants, the affected plant material can be removed and disposed of (pruning equipment
should be disinfected with bleach to prevent spreading the disease organism).
- Small mammals and birds can be excluded using fences, netting, tree trunk guards.
- Beneficial organisms, such as bats, birds, green lacewings, ladybugs, praying mantis,
ground beetles, parasitic nematodes, trichogramma wasps, seed head weevils, and
spiders that prey on detrimental pest species can be promoted.
Follow all federal, state, and local laws and regulations governing the use, storage, and
disposal of fertilizers and pesticides and training of applicators and pest control advisors.
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Use pesticides only if there is an actual pest problem (not on a regular preventative
schedule).
Do not use pesticides if rain is expected. Apply pesticides only when wind speeds are low
(less than 5 mph).
Do not mix or prepare pesticides for application near storm drains.
Prepare the minimum amount of pesticide needed for the job and use the lowest rate that
will effectively control the pest.
Employ techniques to minimize off-target application (e.g. spray drift) of pesticides,
including consideration of alternative application techniques.
Fertilizers should be worked into the soil rather than dumped or broadcast onto the surface.
Calibrate fertilizer and pesticide application equipment to avoid excessive application.
Periodically test soils for determining proper fertilizer use.
Sweep pavement and sidewalk if fertilizer is spilled on these surfaces before applying
irrigation water.
Purchase only the amount of pesticide that you can reasonably use in a given time period
(month or year depending on the product).
Triple rinse containers, and use rinse water as product. Dispose of unused pesticide as
hazardous waste.
Dispose of empty pesticide containers according to the instructions on the container label.
Inspection
Inspect irrigation system periodically to ensure that the right amount of water is being
applied and that excessive runoff is not occurring. Minimize excess watering, and repair
leaks in the irrigation system as soon as they are observed.
Inspect pesticide/fertilizer equipment and transportation vehicles daily.
Training
Educate and train employees on use of pesticides and in pesticide application techniques to
prevent pollution. Pesticide application must be under the supervision of a California
qualified pesticide applicator.
Train/encourage municipal maintenance crews to use IPM techniques for managing public
green areas.
Annually train employees within departments responsible for pesticide application on the
appropriate portions of the agency’s IPM Policy, SOPs, and BMPs, and the latest IPM
techniques.
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Employees who are not authorized and trained to apply pesticides should be periodically (at
least annually) informed that they cannot use over-the-counter pesticides in or around the
workplace.
Use a training log or similar method to document training.
Spill Response and Prevention
Refer to SC-11, Spill Prevention, Control & Cleanup
Have spill cleanup materials readily available and in a know in location
Cleanup spills immediately and use dry methods if possible.
Properly dispose of spill cleanup material.
Other Considerations
The Federal Pesticide, Fungicide, and Rodenticide Act and California Title 3, Division 6,
Pesticides and Pest Control Operations place strict controls over pesticide application and
handling and specify training, annual refresher, and testing requirements. The regulations
generally cover: a list of approved pesticides and selected uses, updated regularly; general
application information; equipment use and maintenance procedures; and record keeping.
The California Department of Pesticide Regulations and the County Agricultural
Commission coordinate and maintain the licensing and certification programs. All public
agency employees who apply pesticides and herbicides in “agricultural use” areas such as
parks, golf courses, rights-of-way and recreation areas should be properly certified in
accordance with state regulations. Contracts for landscape maintenance should include
similar requirements.
All employees who handle pesticides should be familiar with the most recent material safety
data sheet (MSDS) files.
Municipalities do not have the authority to regulate the use of pesticides by school districts,
however the California Healthy Schools Act of 2000 (AB 2260) has imposed requirements
on California school districts regarding pesticide use in schools. Posting of notification prior
to the application of pesticides is now required, and IPM is stated as the preferred approach
to pest management in schools.
Requirements
Costs
Additional training of municipal employees will be required to address IPM techniques and
BMPs. IPM methods will likely increase labor cost for pest control which may be offset by lower
chemical costs.
Maintenance
Not applicable
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Supplemental Information
Further Detail of the BMP
Waste Management
Composting is one of the better disposal alternatives if locally available. Most municipalities
either have or are planning yard waste composting facilities as a means of reducing the amount
of waste going to the landfill. Lawn clippings from municipal maintenance programs as well as
private sources would probably be compatible with most composting facilities
Contractors and Other Pesticide Users
Municipal agencies should develop and implement a process to ensure that any contractor
employed to conduct pest control and pesticide application on municipal property engages in
pest control methods consistent with the IPM Policy adopted by the agency. Specifically,
municipalities should require contractors to follow the agency’s IPM policy, SOPs, and BMPs;
provide evidence to the agency of having received training on current IPM techniques when
feasible; provide documentation of pesticide use on agency property to the agency in a timely
manner.
References and Resources
King County Stormwater Pollution Control Manual. Best Management Practices for Businesses.
1995. King County Surface Water Management. July. On-line:
http://dnr.metrokc.gov/wlr/dss/spcm.htm
Los Angeles County Stormwater Quality Model Programs. Public Agency Activities
http://ladpw.org/wmd/npdes/model_links.cfm
Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for
Small Municipalities. Prepared by City of Monterey, City of Santa Cruz, California Coastal
Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area
Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July.
1998.
Orange County Stormwater Program
http://www.ocwatersheds.com/StormWater/swp_introduction.asp
Santa Clara Valley Urban Runoff Pollution Prevention Program. 1997 Urban Runoff
Management Plan. September 1997, updated October 2000.
United States Environmental Protection Agency (USEPA). 2002. Pollution Prevention/Good
Housekeeping for Municipal Operations Landscaping and Lawn Care. Office of Water. Office of
Wastewater Management. On-line: http://www.epa.gov/npdes/menuofbmps/poll_8.htm
Drainage System Maintenance SC-74
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Description
As a consequence of its function, the stormwater conveyance
system collects and transports urban runoff that may contain
certain pollutants. Maintaining catch basins, stormwater inlets,
and other stormwater conveyance structures on a regular basis
will remove pollutants, prevent clogging of the downstream
conveyance system, restore catch basins’ sediment trapping
capacity, and ensure the system functions properly hydraulically
to avoid flooding.
Approach
Suggested Protocols
Catch Basins/Inlet Structures
Municipal staff should regularly inspect facilities to ensure
the following:
- Immediate repair of any deterioration threatening
structural integrity.
- Cleaning before the sump is 40% full. Catch basins
should be cleaned as frequently as needed to meet this
standard.
- Stenciling of catch basins and inlets (see SC-75 Waste
Handling and Disposal).
Clean catch basins, storm drain inlets, and other conveyance
structures in high pollutant load areas just before the wet
season to remove sediments and debris accumulated during
the summer.
Objectives
Contain
Educate
Reduce/Minimize
Targeted Constituents
Sediment ;
Nutrients ;
Trash ;
Metals ;
Bacteria ;
Oil and Grease ;
Organics ;
Oxygen Demanding ;
Photo Credit: Geoff Brosseau
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Conduct inspections more frequently during the wet season for problem areas where
sediment or trash accumulates more often. Clean and repair as needed.
Keep accurate logs of the number of catch basins cleaned.
Record the amount of waste collected.
Store wastes collected from cleaning activities of the drainage system in appropriate
containers or temporary storage sites in a manner that prevents discharge to the storm
drain.
Dewater the wastes with outflow into the sanitary sewer if permitted. Water should be
treated with an appropriate filtering device prior to discharge to the sanitary sewer. If
discharge to the sanitary sewer is not allowed, water should be pumped or vacuumed to a
tank and properly disposed of. Do not dewater near a storm drain or stream.
Except for small communities with relatively few catch basins that may be cleaned manually,
most municipalities will require mechanical cleaners such as eductors, vacuums, or bucket
loaders.
Storm Drain Conveyance System
Locate reaches of storm drain with deposit problems and develop a flushing schedule that
keeps the pipe clear of excessive buildup.
Collect flushed effluent and pump to the sanitary sewer for treatment.
Pump Stations
Clean all storm drain pump stations prior to the wet season to remove silt and trash.
Do not allow discharge from cleaning a storm drain pump station or other facility to reach
the storm drain system.
Conduct quarterly routine maintenance at each pump station.
Inspect, clean, and repair as necessary all outlet structures prior to the wet season.
Sample collected sediments to determine if landfill disposal is possible, or illegal discharges
in the watershed are occurring.
Open Channel
Consider modification of storm channel characteristics to improve channel hydraulics, to
increase pollutant removals, and to enhance channel/creek aesthetic and habitat value.
Conduct channel modification/improvement in accordance with existing laws. Any person,
government agency, or public utility proposing an activity that will change the natural
(emphasis added) state of any river, stream, or lake in California, must enter into a steam or
Lake Alteration Agreement with the Department of Fish and Game. The developer-applicant
should also contact local governments (city, county, special districts), other state agencies
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(SWRCB, RWQCB, Department of Forestry, Department of Water Resources), and Federal
Corps of Engineers and USFWS
Illicit Connections and Discharges
During routine maintenance of conveyance system and drainage structures field staff should
look for evidence of illegal discharges or illicit connections:
- Is there evidence of spills such as paints, discoloring, etc.
- Are there any odors associated with the drainage system
- Record locations of apparent illegal discharges/illicit connections
- Track flows back to potential dischargers and conduct aboveground inspections. This can
be done through visual inspection of up gradient manholes or alternate techniques
including zinc chloride smoke testing, fluorometric dye testing, physical inspection
testing, or television camera inspection.
- Once the origin of flow is established, require illicit discharger to eliminate the discharge.
Stencil storm drains, where applicable, to prevent illegal disposal of pollutants. Storm drain
inlets should have messages such as “Dump No Waste Drains to Stream” stenciled next to
them to warn against ignorant or intentional dumping of pollutants into the storm drainage
system.
Refer to fact sheet SC-10 Non-Stormwater Discharges.
Illegal Dumping
Regularly inspect and clean up hot spots and other storm drainage areas where illegal
dumping and disposal occurs.
Establish a system for tracking incidents. The system should be designed to identify the
following:
- Illegal dumping hot spots
- Types and quantities (in some cases) of wastes
- Patterns in time of occurrence (time of day/night, month, or year)
- Mode of dumping (abandoned containers, “midnight dumping” from moving vehicles,
direct dumping of materials, accidents/spills)
- Responsible parties
Post “No Dumping” signs in problem areas with a phone number for reporting dumping and
disposal. Signs should also indicate fines and penalties for illegal dumping.
Refer to fact sheet SC-10 Non-Stormwater Discharges.
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The State Department of Fish and Game has a hotline for reporting violations called Cal TIP
(1-800-952-5400). The phone number may be used to report any violation of a Fish and
Game code (illegal dumping, poaching, etc.).
The California Department of Toxic Substances Control’s Waste Alert Hotline, 1-800-
69TOXIC, can be used to report hazardous waste violations.
Training
Train crews in proper maintenance activities, including record keeping and disposal.
Only properly trained individuals are allowed to handle hazardous materials/wastes.
Train municipal employees from all departments (public works, utilities, street cleaning,
parks and recreation, industrial waste inspection, hazardous waste inspection, sewer
maintenance) to recognize and report illegal dumping.
Train municipal employees and educate businesses, contractors, and the general public in
proper and consistent methods for disposal.
Train municipal staff regarding non-stormwater discharges (See SC-10 Non-Stormwater
Discharges).
Spill Response and Prevention
Refer to SC-11, Prevention, Control & Cleanup
Have spill cleanup materials readily available and in a known location.
Cleanup spills immediately and use dry methods if possible.
Properly dispose of spill cleanup material.
Other Considerations
Cleanup activities may create a slight disturbance for local aquatic species. Access to items
and material on private property may be limited. Trade-offs may exist between channel
hydraulics and water quality/riparian habitat. If storm channels or basins are recognized as
wetlands, many activities, including maintenance, may be subject to regulation and
permitting.
Storm drain flushing is most effective in small diameter pipes (36-inch diameter pipe or less,
depending on water supply and sediment collection capacity). Other considerations
associated with storm drain flushing may include the availability of a water source, finding a
downstream area to collect sediments, liquid/sediment disposal, and disposal of flushed
effluent to sanitary sewer may be prohibited in some areas.
Regulations may include adoption of substantial penalties for illegal dumping and disposal.
Municipal codes should include sections prohibiting the discharge of soil, debris, refuse,
hazardous wastes, and other pollutants into the storm drain system.
Private property access rights may be needed to track illegal discharges up gradient.
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Requirements of municipal ordinance authority for suspected source verification testing for
illicit connections necessary for guaranteed rights of entry.
Requirements
Costs
An aggressive catch basin cleaning program could require a significant capital and O&M
budget. A careful study of cleaning effectiveness should be undertaken before increased
cleaning is implemented. Catch basin cleaning costs are less expensive if vacuum street
sweepers are available; cleaning catch basins manually can cost approximately twice as
much as cleaning the basins with a vacuum attached to a sweeper.
Methods used for illicit connection detection (smoke testing, dye testing, visual inspection,
and flow monitoring) can be costly and time-consuming. Site-specific factors, such as the
level of impervious area, the density and ages of buildings, and type of land use will
determine the level of investigation necessary. Encouraging reporting of illicit discharges by
employees can offset costs by saving expense on inspectors and directing resources more
efficiently. Some programs have used funds available from “environmental fees” or special
assessment districts to fund their illicit connection elimination programs.
Maintenance
Two-person teams may be required to clean catch basins with vactor trucks.
Identifying illicit discharges requires teams of at least two people (volunteers can be used),
plus administrative personnel, depending on the complexity of the storm sewer system.
Arrangements must be made for proper disposal of collected wastes.
Requires technical staff to detect and investigate illegal dumping violations, and to
coordinate public education.
Supplemental Information
Further Detail of the BMP
Storm Drain flushing
Sanitary sewer flushing is a common maintenance activity used to improve pipe hydraulics and
to remove pollutants in sanitary sewer systems. The same principles that make sanitary sewer
flushing effective can be used to flush storm drains. Flushing may be designed to hydraulically
convey accumulated material to strategic locations, such as to an open channel, to another point
where flushing will be initiated, or over to the sanitary sewer and on to the treatment facilities,
thus preventing re-suspension and overflow of a portion of the solids during storm events.
Flushing prevents “plug flow” discharges of concentrated pollutant loadings and sediments. The
deposits can hinder the designed conveyance capacity of the storm drain system and potentially
cause backwater conditions in severe cases of clogging.
Storm drain flushing usually takes place along segments of pipe with grades that are too flat to
maintain adequate velocity to keep particles in suspension. An upstream manhole is selected to
place an inflatable device that temporarily plugs the pipe. Further upstream, water is pumped
into the line to create a flushing wave. When the upstream reach of pipe is sufficiently full to
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cause a flushing wave, the inflated device is rapidly deflated with the assistance of a vacuum
pump, releasing the backed up water and resulting in the cleaning of the storm drain segment.
To further reduce the impacts of stormwater pollution, a second inflatable device, placed well
downstream, may be used to re-collect the water after the force of the flushing wave has
dissipated. A pump may then be used to transfer the water and accumulated material to the
sanitary sewer for treatment. In some cases, an interceptor structure may be more practical or
required to re-collect the flushed waters.
It has been found that cleansing efficiency of periodic flush waves is dependent upon flush
volume, flush discharge rate, sewer slope, sewer length, sewer flow rate, sewer diameter, and
population density. As a rule of thumb, the length of line to be flushed should not exceed 700
feet. At this maximum recommended length, the percent removal efficiency ranges between 65-
75 percent for organics and 55-65 percent for dry weather grit/inorganic material. The percent
removal efficiency drops rapidly beyond that. Water is commonly supplied by a water truck, but
fire hydrants can also supply water. To make the best use of water, it is recommended that
reclaimed water be used or that fire hydrant line flushing coincide with storm drain flushing.
Flow Management
Flow management has been one of the principal motivations for designing urban stream
corridors in the past. Such needs may or may not be compatible with the stormwater quality
goals in the stream corridor.
Downstream flood peaks can be suppressed by reducing through flow velocity. This can be
accomplished by reducing gradient with grade control structures or increasing roughness with
boulders, dense vegetation, or complex banks forms. Reducing velocity correspondingly
increases flood height, so all such measures have a natural association with floodplain open
space. Flood elevations laterally adjacent to the stream can be lowered by increasing through
flow velocity.
However, increasing velocity increases flooding downstream and inherently conflicts with
channel stability and human safety. Where topography permits, another way to lower flood
elevation is to lower the level of the floodway with drop structures into a large but subtly
excavated bowl where flood flows we allowed to spread out.
Stream Corridor Planning
Urban streams receive and convey stormwater flows from developed or developing watersheds.
Planning of stream corridors thus interacts with urban stormwater management programs. If
local programs are intended to control or protect downstream environments by managing flows
delivered to the channels, then it is logical that such programs should be supplemented by
management of the materials, forms, and uses of the downstream riparian corridor. Any
proposal for steam alteration or management should be investigated for its potential flow and
stability effects on upstream, downstream, and laterally adjacent areas. The timing and rate of
flow from various tributaries can combine in complex ways to alter flood hazards. Each section
of channel is unique, influenced by its own distribution of roughness elements, management
activities, and stream responses.
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Flexibility to adapt to stream features and behaviors as they evolve must be included in stream
reclamation planning. The amenity and ecology of streams may be enhanced through the
landscape design options of 1) corridor reservation, 2) bank treatment, 3) geomorphic
restoration, and 4) grade control.
Corridor reservation - Reserving stream corridors and valleys to accommodate natural stream
meandering, aggradation, degradation, and over bank flows allows streams to find their own
form and generate less ongoing erosion. In California, open stream corridors in recent urban
developments have produced recreational open space, irrigation of streamside plantings, and
the aesthetic amenity of flowing water.
Bank treatment - The use of armoring, vegetative cover, and flow deflection may be used to
influence a channel’s form, stability, and biotic habitat. To prevent bank erosion, armoring can
be done with rigid construction materials, such as concrete, masonry, wood planks and logs,
riprap, and gabions. Concrete linings have been criticized because of their lack of provision of
biotic habitat. In contrast, riprap and gabions make relatively porous and flexible linings.
Boulders, placed in the bed reduce velocity and erosive power.
Riparian vegetation can stabilize the banks of streams that are at or near a condition of
equilibrium. Binding networks of roots increase bank shear strength. During flood flows,
resilient vegetation is forced into erosion-inhibiting mats. The roughness of vegetation leads to
lower velocity, further reducing erosive effects. Structural flow deflection can protect banks
from erosion or alter fish habitat. By concentrating flow, a deflector causes a pool to be scoured
in the bed.
Geomorphic restoration – Restoration refers to alteration of disturbed streams so their form
and behavior emulate those of undisturbed streams. Natural meanders are retained, with
grading to gentle slopes on the inside of curves to allow point bars and riffle-pool sequences to
develop. Trees are retained to provide scenic quality, biotic productivity, and roots for bank
stabilization, supplemented by plantings where necessary.
A restorative approach can be successful where the stream is already approaching equilibrium.
However, if upstream urbanization continues new flow regimes will be generated that could
disrupt the equilibrium of the treated system.
Grade Control - A grade control structure is a level shelf of a permanent material, such as stone,
masonry, or concrete, over which stream water flows. A grade control structure is called a sill,
weir, or drop structure, depending on the relation of its invert elevation to upstream and
downstream channels.
A sill is installed at the preexisting channel bed elevation to prevent upstream migration of nick
points. It establishes a firm base level below which the upstream channel can not erode.
A weir or check dam is installed with invert above the preexisting bed elevation. A weir raises
the local base level of the stream and causes aggradation upstream. The gradient, velocity, and
erosive potential of the stream channel are reduced. A drop structure lowers the downstream
invert below its preexisting elevation, reducing downstream gradient and velocity. Weirs and
drop structure control erosion by dissipating energy and reducing slope velocity.
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When carefully applied, grade control structures can be highly versatile in establishing human
and environmental benefits in stabilized channels. To be successful, application of grade control
structures should be guided by analysis of the stream system both upstream and downstream
from the area to he reclaimed.
Examples
The California Department of Water Resources began the Urban Stream Restoration Program in
1985. The program provides grant funds to municipalities and community groups to implement
stream restoration projects. The projects reduce damages from streambank aid watershed
instability arid floods while restoring streams’ aesthetic, recreational, and fish and wildlife
values.
In Buena Vista Park, upper floodway slopes are gentle and grassed to achieve continuity of
usable park land across the channel of small boulders at the base of the slopes.
The San Diego River is a large, vegetative lined channel, which was planted in a variety of
species to support riparian wildlife while stabilizing the steep banks of the floodway.
References and Resources
Ferguson, B.K. 1991. Urban Stream Reclamation, p. 324-322, Journal of Soil and Water
Conservation.
Los Angeles County Stormwater Quality. Public Agency Activities Model Program. On-line:
http://ladpw.org/wmd/npdes/public_TC.cfm
Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for
Small Municipalities. Prepared by City of Monterey, City of Santa Cruz, California Coastal
Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area
Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July.
1998.
Orange County Stormwater Program
http://www.ocwatersheds.com/StormWater/swp_introduction.asp
Santa Clara Valley Urban Runoff Pollution Prevention Program. 1997 Urban Runoff
Management Plan. September 1997, updated October 2000.
San Diego Stormwater Co-permittees Jurisdictional Urban Runoff Management Program
(URMP) Municipal Activities Model Program Guidance. 2001. Project Clean Water.
November.
United States Environmental Protection Agency (USEPA). 1999. Stormwater Management Fact
Sheet Non-stormwater Discharges to Storm Sewers. EPA 832-F-99-022. Office of Water,
Washington, D.C. September.
United States Environmental Protection Agency (USEPA). 1999. Stormwater O&M Fact Sheet
Catch Basin Cleaning. EPA 832-F-99-011. Office of Water, Washington, D.C. September.
Drainage System Maintenance SC-74
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United States Environmental Protection Agency (USEPA). 2002. Pollution Prevention/Good
Housekeeping for Municipal Operations Illegal Dumping Control. On line:
http://www.epa.gov/npdes/menuofbmps/poll_7.htm
United States Environmental Protection Agency (USEPA). 2002. Pollution Prevention/Good
Housekeeping for Municipal Operations Storm Drain System Cleaning. On line:
http://www.epa.gov/npdes/menuofbmps/poll_16.htm
Efficient Irrigation SD-12
January 2003 California Stormwater BMP Handbook 1 of 2
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Description
Irrigation water provided to landscaped areas may result in excess irrigation water being
conveyed into stormwater drainage systems.
Approach
Project plan designs for development and redevelopment should include application methods of
irrigation water that minimize runoff of excess irrigation water into the stormwater conveyance
system.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for
development or redevelopment. (Detached residential single-family homes are typically
excluded from this requirement.)
Design Considerations
Designing New Installations
The following methods to reduce excessive irrigation runoff should be considered, and
incorporated and implemented where determined applicable and feasible by the Permittee:
Employ rain-triggered shutoff devices to prevent irrigation after precipitation.
Design irrigation systems to each landscape area’s specific water requirements.
Include design featuring flow reducers or shutoff valves
triggered by a pressure drop to control water loss in the event
of broken sprinkler heads or lines.
Implement landscape plans consistent with County or City
water conservation resolutions, which may include provision
of water sensors, programmable irrigation times (for short
cycles), etc.
Design Objectives
; Maximize Infiltration
; Provide Retention
; Slow Runoff
Minimize Impervious Land
Coverage
Prohibit Dumping of Improper
Materials
Contain Pollutants
Collect and Convey
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Design timing and application methods of irrigation water to minimize the runoff of excess
irrigation water into the storm water drainage system.
Group plants with similar water requirements in order to reduce excess irrigation runoff and
promote surface filtration. Choose plants with low irrigation requirements (for example,
native or drought tolerant species). Consider design features such as:
- Using mulches (such as wood chips or bar) in planter areas without ground cover to
minimize sediment in runoff
- Installing appropriate plant materials for the location, in accordance with amount of
sunlight and climate, and use native plant materials where possible and/or as
recommended by the landscape architect
- Leaving a vegetative barrier along the property boundary and interior watercourses, to
act as a pollutant filter, where appropriate and feasible
- Choosing plants that minimize or eliminate the use of fertilizer or pesticides to sustain
growth
Employ other comparable, equally effective methods to reduce irrigation water runoff.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. The definition of “ redevelopment” must be consulted to determine
whether or not the requirements for new development apply to areas intended for
redevelopment. If the definition applies, the steps outlined under “designing new installations”
above should be followed.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.
Storm Drain Signage SD-13
January 2003 California Stormwater BMP Handbook 1 of 2
New Development and Redevelopment www.cabmphandbooks.com
Description
Waste materials dumped into storm drain inlets can have severe impacts on receiving and
ground waters. Posting notices regarding discharge prohibitions at storm drain inlets can
prevent waste dumping. Storm drain signs and stencils are highly visible source controls that
are typically placed directly adjacent to storm drain inlets.
Approach
The stencil or affixed sign contains a brief statement that prohibits dumping of improper
materials into the urban runoff conveyance system. Storm drain messages have become a
popular method of alerting the public about the effects of and the prohibitions against waste
disposal.
Suitable Applications
Stencils and signs alert the public to the destination of pollutants discharged to the storm drain.
Signs are appropriate in residential, commercial, and industrial areas, as well as any other area
where contributions or dumping to storm drains is likely.
Design Considerations
Storm drain message markers or placards are recommended at all storm drain inlets within the
boundary of a development project. The marker should be placed in clear sight facing toward
anyone approaching the inlet from either side. All storm drain inlet locations should be
identified on the development site map.
Designing New Installations
The following methods should be considered for inclusion in the
project design and show on project plans:
Provide stenciling or labeling of all storm drain inlets and
catch basins, constructed or modified, within the project area
with prohibitive language. Examples include “NO DUMPING
Design Objectives
Maximize Infiltration
Provide Retention
Slow Runoff
Minimize Impervious Land
Coverage
; Prohibit Dumping of Improper
Materials
Contain Pollutants
Collect and Convey
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– DRAINS TO OCEAN” and/or other graphical icons to discourage illegal dumping.
Post signs with prohibitive language and/or graphical icons, which prohibit illegal dumping
at public access points along channels and creeks within the project area.
Note - Some local agencies have approved specific signage and/or storm drain message placards
for use. Consult local agency stormwater staff to determine specific requirements for placard
types and methods of application.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. If the project meets the definition of “redevelopment”, then the
requirements stated under “ designing new installations” above should be included in all project
design plans.
Additional Information
Maintenance Considerations
Legibility of markers and signs should be maintained. If required by the agency with
jurisdiction over the project, the owner/operator or homeowner’s association should enter
into a maintenance agreement with the agency or record a deed restriction upon the
property title to maintain the legibility of placards or signs.
Placement
Signage on top of curbs tends to weather and fade.
Signage on face of curbs tends to be worn by contact with vehicle tires and sweeper brooms.
Supplemental Information
Examples
Most MS4 programs have storm drain signage programs. Some MS4 programs will provide
stencils, or arrange for volunteers to stencil storm drains as part of their outreach program.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.
Maintenance Bays & Docks SD-31
January 2003 California Stormwater BMP Handbook 1 of 2
New Development and Redevelopment
www.cabmphandbooks.com
Description
Several measures can be taken to prevent operations at
maintenance bays and loading docks from contributing a variety of toxic compounds, oil and
grease, heavy metals, nutrients, suspended solids, and other pollutants to the stormwater
conveyance system.
Approach
In designs for maintenance bays and loading docks, containment is encouraged. Preventative
measures include overflow containment structures and dead-end sumps. However, in the case
of loading docks from grocery stores and warehouse/distribution centers, engineered infiltration
systems may be considered.
Suitable Applications
Appropriate applications include commercial and industrial areas planned for development or
redevelopment.
Design Considerations
Design requirements for vehicle maintenance and repair are governed by Building and Fire
Codes, and by current local agency ordinances, and zoning requirements. The design criteria
described in this fact sheet are meant to enhance and be consistent with these code
requirements.
Designing New Installations
Designs of maintenance bays should consider the following:
Repair/maintenance bays and vehicle parts with fluids should
be indoors; or designed to preclude urban run-on and runoff.
Repair/maintenance floor areas should be paved with
Portland cement concrete (or equivalent smooth impervious
surface).
Design Objectives
Maximize Infiltration
Provide Retention
Slow Runoff
Minimize Impervious Land
Coverage
; Prohibit Dumping of Improper
Materials
; Contain Pollutants
Collect and Convey
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Repair/maintenance bays should be designed to capture all wash water leaks and spills.
Provide impermeable berms, drop inlets, trench catch basins, or overflow containment
structures around repair bays to prevent spilled materials and wash-down waters form
entering the storm drain system. Connect drains to a sump for collection and disposal.
Direct connection of the repair/maintenance bays to the storm drain system is prohibited. If
required by local jurisdiction, obtain an Industrial Waste Discharge Permit.
Other features may be comparable and equally effective.
The following designs of loading/unloading dock areas should be considered:
Loading dock areas should be covered, or drainage should be designed to preclude urban
run-on and runoff.
Direct connections into storm drains from depressed loading docks (truck wells) are
prohibited.
Below-grade loading docks from grocery stores and warehouse/distribution centers of fresh
food items should drain through water quality inlets, or to an engineered infiltration system,
or an equally effective alternative. Pre-treatment may also be required.
Other features may be comparable and equally effective.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. The definition of “ redevelopment” must be consulted to determine
whether or not the requirements for new development apply to areas intended for
redevelopment. If the definition applies, the steps outlined under “designing new installations”
above should be followed.
Additional Information
Stormwater and non-stormwater will accumulate in containment areas and sumps with
impervious surfaces. Contaminated accumulated water must be disposed of in accordance with
applicable laws and cannot be discharged directly to the storm drain or sanitary sewer system
without the appropriate permit.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.
Trash Storage Areas SD-32
January 2003 California Stormwater BMP Handbook 1 of 2
New Development and Redevelopment
www.cabmphandbooks.com
Description
Trash storage areas are areas where a trash receptacle (s) are
located for use as a repository for solid wastes. Stormwater
runoff from areas where trash is stored or disposed of can be
polluted. In addition, loose trash and debris can be easily
transported by water or wind into nearby storm drain inlets,
channels, and/or creeks. Waste handling operations that may be
sources of stormwater pollution include dumpsters, litter control,
and waste piles.
Approach
This fact sheet contains details on the specific measures required
to prevent or reduce pollutants in stormwater runoff associated
with trash storage and handling. Preventative measures
including enclosures, containment structures, and impervious
pavements to mitigate spills, should be used to reduce the
likelihood of contamination.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for
development or redevelopment. (Detached residential single-family homes are typically
excluded from this requirement.)
Design Considerations
Design requirements for waste handling areas are governed by Building and Fire Codes, and by
current local agency ordinances and zoning requirements. The design criteria described in this
fact sheet are meant to enhance and be consistent with these code and ordinance requirements.
Hazardous waste should be handled in accordance with legal requirements established in Title
22, California Code of Regulation.
Wastes from commercial and industrial sites are typically hauled by either public or commercial
carriers that may have design or access requirements for waste storage areas. The design
criteria in this fact sheet are recommendations and are not intended to be in conflict with
requirements established by the waste hauler. The waste hauler should be contacted prior to the
design of your site trash collection areas. Conflicts or issues should be discussed with the local
agency.
Designing New Installations
Trash storage areas should be designed to consider the following structural or treatment control
BMPs:
Design trash container areas so that drainage from adjoining
roofs and pavement is diverted around the area(s) to avoid
run-on. This might include berming or grading the waste
handling area to prevent run-on of stormwater.
Make sure trash container areas are screened or walled to
prevent off-site transport of trash.
Design Objectives
Maximize Infiltration
Provide Retention
Slow Runoff
Minimize Impervious Land
Coverage
Prohibit Dumping of Improper
Materials
; Contain Pollutants
Collect and Convey
SD-32 Trash Storage Areas
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Use lined bins or dumpsters to reduce leaking of liquid waste.
Provide roofs, awnings, or attached lids on all trash containers to minimize direct
precipitation and prevent rainfall from entering containers.
Pave trash storage areas with an impervious surface to mitigate spills.
Do not locate storm drains in immediate vicinity of the trash storage area.
Post signs on all dumpsters informing users that hazardous materials are not to be disposed
of therein.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. The definition of “ redevelopment” must be consulted to determine
whether or not the requirements for new development apply to areas intended for
redevelopment. If the definition applies, the steps outlined under “designing new installations”
above should be followed.
Additional Information
Maintenance Considerations
The integrity of structural elements that are subject to damage (i.e., screens, covers, and signs)
must be maintained by the owner/operator. Maintenance agreements between the local agency
and the owner/operator may be required. Some agencies will require maintenance deed
restrictions to be recorded of the property title. If required by the local agency, maintenance
agreements or deed restrictions must be executed by the owner/operator before improvement
plans are approved.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.
Vehicle Washing Areas SD-33
January 2003 California Stormwater BMP Handbook 1 of 2
New Development and Redevelopment
www.cabmphandbooks.com
Description
Vehicle washing, equipment washing, and steam cleaning may contribute high concentrations of
metals, oil and grease, solvents, phosphates, and suspended solids to wash waters that drain to
stormwater conveyance systems.
Approach
Project plans should include appropriately designed area(s) for washing-steam cleaning of
vehicles and equipment. Depending on the size and other parameters of the wastewater facility,
wash water may be conveyed to a sewer, an infiltration system, recycling system or other
alternative. Pretreatment may be required for conveyance to a sanitary sewer.
Suitable Applications
Appropriate applications include commercial developments, restaurants, retail gasoline outlets,
automotive repair shops and others.
Design Considerations
Design requirements for vehicle maintenance are governed by Building and Fire Codes, and by
current local agency ordinances, and zoning requirements. Design criteria described in this fact
sheet are meant to enhance and be consistent with these code requirements.
Designing New Installations
Areas for washing/steam cleaning should incorporate one of the
following features:
Be self-contained and/or covered with a roof or overhang
Be equipped with a clarifier or other pretreatment facility
Have a proper connection to a sanitary sewer
Design Objectives
; Maximize Infiltration
Provide Retention
Slow Runoff
Minimize Impervious Land
Coverage
Prohibit Dumping of Improper
Materials
; Contain Pollutants
; Collect and Convey
Photo Credit: Geoff Brosseau
SD-33 Vehicle Washing Areas
2 of 2 California Stormwater BMP Handbook January 2003
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Include other features which are comparable and equally effective
CAR WASH AREAS - Some jurisdictions’ stormwater management plans include vehicle-
cleaning area source control design requirements for community car wash racks in complexes
with a large number of dwelling units. In these cases, wash water from the areas may be
directed to the sanitary sewer, to an engineered infiltration system, or to an equally effective
alternative. Pre-treatment may also be required.
Depending on the jurisdiction, developers may be directed to divert surface water runoff away
from the exposed area around the wash pad ( parking lot, storage areas), and wash pad itself to
alternatives other than the sanitary sewer. Roofing may be required for exposed wash pads.
It is generally advisable to cover areas used for regular washing of vehicles, trucks, or
equipment, surround them with a perimeter berm, and clearly mark them as a designated
washing area. Sumps or drain lines can be installed to collect wash water, which may be treated
for reuse or recycling, or for discharge to the sanitary sewer. Jurisdictions may require some
form of pretreatment, such as a trap, for these areas.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. The definition of “ redevelopment” must be consulted to determine
whether or not the requirements for new development apply to areas intended for
redevelopment.
Additional Information
Maintenance Considerations
Stormwater and non-stormwater will accumulate in containment areas and sumps with
impervious surfaces. Contaminated accumulated water must be disposed of in accordance with
applicable laws and cannot be discharged directly to the storm drain or sanitary sewer system
without the appropriate permit.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.
Outdoor Material Storage Areas SD-34
January 2003 California Stormwater BMP Handbook 1 of 3
New Development and Redevelopment
www.cabmphandbooks.com
Description
Proper design of outdoor storage areas for materials reduces opportunity for toxic compounds,
oil and grease, heavy metals, nutrients, suspended solids, and other pollutants to enter the
stormwater conveyance system. Materials may be in the form of raw products, by-products,
finished products, and waste products. The type of pollutants associated with the materials will
vary depending on the type of commercial or industrial activity.
Approach
Outdoor storage areas require a drainage approach different from the typical
infiltration/detention strategy. In outdoor storage areas, infiltration is discouraged.
Containment is encouraged. Preventative measures include enclosures, secondary containment
structures and impervious surfaces.
Suitable Applications
Appropriate applications include residential, commercial and industrial areas planned for
development or redevelopment.
Design Considerations
Some materials are more of a concern than others. Toxic and hazardous materials must be
prevented from coming in contact with stormwater. Non-toxic or non-hazardous materials do
not have to be prevented from stormwater contact. However, these materials may have toxic
effects on receiving waters if allowed to be discharged with stormwater in significant quantities.
Accumulated material on an impervious surface could result in
significant impact on the rivers or streams that receive the runoff.
Material may be stored in a variety of ways, including bulk piles,
containers, shelving, stacking, and tanks. Stormwater
contamination may be prevented by eliminating the possibility of
stormwater contact with the material storage areas either through
diversion, cover, or capture of the stormwater. Control measures
may also include minimizing the storage area. Design
Design Objectives
Maximize Infiltration
Provide Retention
Slow Runoff
Minimize Impervious Land
Coverage
Prohibit Dumping of Improper
Materials
; Contain Pollutant
Collect and Convey
SD-34 Outdoor Material Storage Areas
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requirements for material storage areas are governed by Building and Fire Codes, and by
current City or County ordinances and zoning requirements. Control measures are site specific,
and must meet local agency requirements.
Designing New Installations
Where proposed project plans include outdoor areas for storage of materials that may contribute
pollutants to the stormwater conveyance system, the following structural or treatment BMPS
should be considered:
Materials with the potential to contaminate stormwater should be: (1) placed in an enclosure
such as, but not limited to, a cabinet, shed, or similar structure that prevents contact with
runoff or spillage to the stormwater conveyance system, or (2) protected by secondary
containment structures such as berms, dikes, or curbs.
The storage area should be paved and sufficiently impervious to contain leaks and spills.
The storage area should slope towards a dead-end sump to contain spills and direct runoff
from downspouts/roofs should be directed away from storage areas.
The storage area should have a roof or awning that extends beyond the storage area to
minimize collection of stormwater within the secondary containment area. A manufactured
storage shed may be used for small containers.
Note that the location(s) of installations of where these preventative measures will be employed
must be included on the map or plans identifying BMPs.
Redeveloping Existing Installations
Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.)
define “redevelopment” in terms of amounts of additional impervious area, increases in gross
floor area and/or exterior construction, and land disturbing activities with structural or
impervious surfaces. The definition of “ redevelopment” must be consulted to determine
whether or not the requirements for new development apply to areas intended for
redevelopment. If the definition applies, the steps outlined under “designing new installations”
above should be followed.
Additional Information
Stormwater and non-stormwater will accumulate in containment areas and sumps with
impervious surfaces. Contaminated accumulated water must be disposed of in accordance with
applicable laws and cannot be discharged directly to the storm drain or sanitary sewer system
without the appropriate permits.
Other Resources
A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County
Department of Public Works, May 2002.
Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of
San Diego, and Cities in San Diego County, February 14, 2002.
Outdoor Material Storage Areas SD-34
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Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood
Control District, and the Incorporated Cities of Orange County, Draft February 2003.
Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures,
July 2002.