HomeMy WebLinkAboutPA2021-268_20211108_WQMP_10-23-21WATER QUALITY and HYDROLOGY PLAN
WQMP
NON-PRIORITY PROJECT WATER QUALITY CHECKLIST
For:
GUNDERSON RESIDENCE
139 NORTH BAY FRONT, NEWPORT BEACH CA 92662
EASTERLY 15 FEET OF LOT 10 AND WESTERLY 15 FEET OF LOT 11, BLOCK 2 OF THE
RESUBDIVISION OF SECTION 1 OF BALBOA ISLAND, IN THE CITY OF NEWPORT BEACH,
AS PER MAP RECORDED IN BOOK 6, PAGE 30 MM OR ORAGE COUNTY
APN: 050-021-02
Prepared for:
GARY GUNDERSON
139 NORTH BAY FRONT
NEWPORT BEACH, CA 92662
626-3 54-9229
Prepared by:
RCE CONSULTANTS, INC.
18021 SKYP ARK CIRCLE, SUITE E2
IRVINE, CA 92614
ALIREZAEI
949-466-9394
Ali@rce.eng.com
Date: October 23, 2021
Reviewed for compliance with the Local Implementation Plan:
1
PA2021-268
Non-Priority Project Water Quality
Contents
Section I: General Information .................................................................. 4
Section II: Project Description ................................................................... 5
Section III: Site Description ...................................................................... 6
Section IV: Best Management Practices (BMPs) .................................................... 9
Section V: Inspection and Maintenance Responsibilities ................................. 19
Section VI: Plot Plan ............................................................................. 20
References:
Model WQMP
Technical Guidance Document
California BMP Handbooks
3
PA2021-268
Non-Priority Project Water Quality Plan
Sectiori 1 -General Information
See Technical Guidance Document Section 2.2 for additional information.
THE GUNDERSON RESIDENCE
Project Name
Tract SECTION 1, BALBOA ISLAND, MM
Lot EASTERLY 15' LOT 10 AND WESTERLY 15' LOT 11, BLOCK 2
APN 050-021-02
Planning Area
Prepared For:
GARY GUNDERSON
Owner/Developer
Address 139 NORTH BAY FRONT
BALBOA ISLAND, CA 92662
Phone 626-354-9229
Fax
Prepared by:
RCE CONSULTANTS, INC
Name
Address 18021 SKYPARK CIRCLE, SUITE E2
IRVINE, CA 92614
Phone 949-466-9394
Email Ali@}rce.eng.com
Fax
Dates:
Date Prepared
Date(s) Revised
Date Finalized
4
PA2021-268
Owner's Certification
This Non-Priority Project Water Quality Plan has been prepared for:
Gary Gunderson
By:
RCE CONSULTANTS, INC
The checklist is intended to demonstrate compliance with the Non-Priority Project
requirements of the
The undersigned, while it owns the subject property, is responsible for the
implementation of the provisions of this checklist. Once the undersigned transfers its
interests in the property, its successor-in-interest shall bear the aforementioned
responsibility to implement the best management practices (BMP) described within this
plan. A signed copy of this document shall be available on the subject property into
perpetuity.
Signed
GARY GUNDERSON
Name
OWNER
Title
Company
Address 139 North Bay Front
Balboa Island, CA 92662
Phone 626-354-9229
Date
5
PA2021-268
Section II: Project Description and Characterization
Project Description
The project is the demolition of an existing single-family residence over a two car garage and construction of a
new residence on a bay front residential lot. The existing residence, garage and associated driveway, patio and
walkways Govers 1,362 sf of the 2,550 s.f. lot (0.0585 ac ). The proposed development will have 2,415 sf of
impervious coverage on the lot and incorporate 135 sf of landscaping.
The work will include demolition of the existing residence and attached garage, remedial grading to create the
building pad and driveway, on-site construction of services and mains to extend the existing utilities on the site,
drainage inprovements and the construction of the residence, driveway, walkways and property line walls.
There are no planned improvements to be constructed in the adjoining alley or public boardwalk.
The improvements will include approximately 995 sf of concrete driveway, patio and walkway
and a 1,420 s.f. residential footprint. Totaling 2,415 sf of impervious surface.
There will be 135 sf of residential landscaping.
Drainage Conditions
The site currently drains partially from existing concrete patio and slab on to existing landscape areas and
ultimately sheet flows toward the rear alley which. then flows to Emerald A venue to the east. The rear portion
of the site where the existing residence is located drains to concrete side and rear yard and ultimately flows
toward the alley.
The proposed construction will be designed to maintain similar drainage pattern and several area drains.
Additionally, to provide on-site storm drain systems with combination of filtered bottomless catch basin to
capture water from small areas on the rear comers of the site. The proposed construction will also include two
filtered catch basins on the south side to include French drain inlets which ultimately drain to the existing
alley.
6
PA2021-268
Pre-Project Pervious Conditions
Area (acres or sq ft) Percentage
Pervious 1,188 sf 46.59 %
Impervious 1,362 sf 53.41 %
Completed Project Pervious Conditions
Area (acres or sq ft) Percentage
Pervious 135 sf 5.30%
Impervious 2,415 sf 94.70 %
Expected Pollutants of Concern
Describe the pollutants expected to be generated by the site. See TGD Section 2.3.4 for guidance on expected
pollutants associated with different land uses and vroject types.
Watershed Information
Describe the information about the watershed that the project lies in below. See TGD Section 2.3 for guidance
on expected pollutants associated with different land uses and project types. Your local municipality
stormwater program management staff may assist you with this information.
Watershed Newport Bay
Receiving Waters Lower Newport Bay
303( d) Impairments Bacteria, Pesticides, PCB's, Chlordane, DDT, Copper Sediments and Nutrients
TMDLs Sediments, Fecal Coliform, Selenium, Copper
KnownESAs Newport Bay
KnownASBSs
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PA2021-268
Section IV: Best Management Practices (BMPs)
Site Design BMPs
Site Design BMPs reduce the volume of stormwater runoff generated on a project site as well as improve the
quality of runoff that leaves the site, and are required for all proposed Non-Priority new development and
significant redevelopment projects. Descriptions of the most common Site Design BMPs are provided in
County's Technical Guidance Document (see Technical Guidance Document Sections 3 and 4). A list of
typically employed Site Design BMPs may be found in the California BMP Handbooks (California
Stormwater Quality Association).
The following table provides a list of Site Design BMPs that may be applicable for Non-Priority Projects.
Please identify each Site Design BMP included for the project, and briefly describe within the table.
Site Design BMPs
, ..
Name Checklf Brief Description Included
Hydrologic Source Controls
Retention Grading
Downspout Dispersion
Downspout Infiltration ✓ Roof drains drain to Bottomless Trench Drain.
Amended Soils Over Tight
Underlying Soils
Street Trees, Canopy .:
Interception
Residential Rain Barrels Not
Actively Managed
Bioretention without -
Underdrains
Rain Gardens . '1
Porous Landscaping ✓ Planter areas incorporated in landscaping.
Infiltration Planters
Retention Swales
ln_filtration Trenches ✓ There is a bottomless trench drain located at the end of the driveway
Infiltration Basins
. Drywells
Subsurface Infiltration Galleries
French Drains
Permeable Asphalt
Permeable Concrete
Permeable Concrete Pavers .
9
PA2021-268
Site Design BMPs (continued)
Name Check If Brief Description Included
-:· .....
Evapotranspiration
Green Roofs, Brown Roofs,
Blue Roofs
Rainwater Harvesting - - ---Above-ground Rain Barrels
Above-ground Cisterns
Underground Tanks
Biotreatment ;
Bioretention with Underdrains
Stormwater Planter Boxes with ✓ A biofiltration basin is being constructed on the SE side o the lot
Underdrains
Rain Gardens with Underdrains
Constructed Wetlands
Vegetated Swales
Vegetated Filter Strips
Compost-Amended Road
Shoulders
Proprietary (Ready-To-Install)
VeQetated Biotreatment Systems
\ 1
10
PA2021-268
SOURCE CONTROL BMPs
Source Control BMPs, both non-structural and structural, are required for Non-Priority Projects where
applicable to project features. Please identify each applicable Source Control BMP within the following
tables. See Technical Guidance Document Section 6 for additional information.
Nvn-Structural Source Control BMPs
Check One
Identifier Name Not Included Applicable
N1 Education for Property Owners, Tenants and Occupants ✓
N2 Activity Restrictions NA
N3 Common Area Landscape Management (CASQA BMP NA Handbook SC-73)
N4 BMP Maintenance ✓
NS Title 22 CCR Compliance (How development will NA com0lv)
N6 Local Industrial Permit Compliance NA
N7 Spill Contingency Plan (CASQA BMP Handbook SC-11) NA
NS Underground Storage Tank Compliance NA
N9 Hazardous Materials Disclosure Compliance NA I>
N10 Uniform Fire Code Implementation NA
N11 Common Area Litter Control (CASQA BMP Handbook NA SC-60)
N12 Employee Training NA
N13 Housekeeping of Loading Dock~ (BMP Handbook SD-31) NA
N14 Common Area Catch Basin Inspection (BMP Handbook
SC-74) NA
N15 Street Sweeping Private Streets and Parking Lots NA (CASQA BMP Handbook SC-43, SC-70l
N16 Commercial Vehicle Washing NA
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PA2021-268
Structural Source Control BMPs
Check One
Name (with CA BMP Handbook Reference) Not Included Applicable
Storm Drain System Stenciling And Signage (SD-13) NA
Outdoor Material Storage Area Controls(SD-34) NA
Trash And Waste Storage Area Controls(SD-32) NA
Efficient Irrigation Systems (SD-12) ✓
Slope And Channel Protection NA
Loading Dock Area Controls(SO-31) NA
--
Maintenance Bay Controls(SD-31) NA
Vehicle Wash Area Controls(SD-33) NA
Outdoor Processing Area Controls (SD-36) NA
Equipment Wash Area Controls(SD-33) NA
Fueling Area Controls (SD-30) NA
Hillside Planting And Landscaping (SD-10) NA
Wash Water Control For Food Preparation Areas NA
Community Car Wash Racks NA
12
PA2021-268
Source Control BMP Implementation
Please describe implementation frequency and the party responsible for implementation of each Source
Control BMP.
The property owner is responsible for updating educational materials and distributing to contractors and
service people as necessary. The materials are available from
http://www.ocwatersheds.com/ documents/bmp/residentialacti vi ties .
Other BMPs
Other BMPs or devices incorporated to remove pollutants from runoff leaving the project site, which may
or may not include Treatment Control BMPs (see Technical Guidance Document Section 4. 6), are not
required for Non-Priority Projects though may be appropriate under certain conditions. Please provide
details on any other BMPs selected for this project.
The City of Newport Beach is requiring the construction of a bottomless trench drain on the site at the end of
the driveway and a bio-filtration planter on the southeast side of the proposed residence. The property owner
is also responsible for the implementation and maintenance ofBMPs (bio-iltration planter and bottomless
trench drain)
•
13
PA2021-268
IV. 1 Project Performance Criteria
Size LID, Runoff Control, and Treatment Control BMPs Using 85th Percentile Design Storm
Standard. Any LID, Runoff Control, or Treatment Control BMP (or suite ofBMPs) implemented
to comply with WQHP requirements shall be sized, designed, and managed to infiltrate, retain, or
treat, at a minimum, the runoff produced by the 85th percentile 24-hour storm event for volume-
based BMPs, or two times the 85th percentile 1-hour storm event for flow-based BMPs ..
Use LID Approach to Retain Design Storm Runoff Volume On-Site. The development shall
implement an LID approach to stormwater management that will retain on-site (by means of
infiltration, evapotranspiration, or harvesting for later on-site use) the runoff volume produced by
the 85th percentile 24-hour design storm (see Subsection (C) (4) of this section), to the extent
appropriate and feasible.
IV.2. Site Design and Drainage
Drainag<!_Area R_imojf Volume
Area= 2,550 sf _
Impervious Area= 2,468 sf
imp= 0.899
C= 0.824
d= 0.65"
DCV= C x d x A x 1/12 in/ft= 124 cf
IV.3 Infiltration BMPs
Show calculations below to demonstrate if the LID Design Storm Capture Volume can be met
with infiltration BMPs.
Bottomless Trench Drain:
The soils on the project site are HSG A and are feasible for infiltration BMPs. Beach Sands
typically have an infiltration rate of between 5 and 20 inches per hour. For the purposes of this
report 5 in/hr will be used for the design infiltration rate.
Bottomless Trench
Length = 24 ft.
The volume of gravel is approximately J cf per linear foot of trench.
Total volume of gravel is 72 cf.
Void ratio is 0.35.
Total storage volume of trench is 25 .2 cf.
Area of drain= 24' x 2.0' = 48 s.f.
Effective depth of trench= 25 .2 cf/48 sf= 0.53 ft.
Total storage volume of infiltration BMPs = 25.2 cf
Per Worksheet A below, the required storage volume of the trench is 25 cf ✓OK
14
PA2021-268
Worksheet A: Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs
--
Step 1: Determine the design capture storm depth used for calculating volume
1 Enter design capture storm depth, d (inches) d= 0.65 inches
Enter calculated drawdown time of the
2 proposed BMP based on equation provided in T= 2 hours
applicable BMP Fact Sheet, T (hours)
Using Graph, determine the "fraction of
3 design capture storm depth" at which the 0.20 BMP drawdown time (T) line achieves 80%
capture efficiency, X1 X1=
4 Enter the effect depth of provided HSCs dHsc= 0 inches upstream, dHsc (inches)
5 Enter capture efficiency corresponding to Y2= 0 % dHSC , Y2
Using Graph determine the fraction of "design
6 capture storm depth" at which the drawdown X2= 0 time (T) achieves the equivalent of the
upstream capture efficiency(Y2), X2
7 Calculate the fraction of design volume that fraction 0.20 must be provided by BMP, fraction= X1 -X2 =
Calculate the resultant design capture storm .,
8 dtraction= 0.13 inches depth (inches), dtraction= fraction X d
Step 2: Calculate the DCV
1 Enter Project area tributary to BMP (s), A (sf) A= 2550 sf
2 Enter Project Imperviousness, imp {µnitless) imp= 0.899
Calculate runoff coefficient, C= (0. 75 x imp) + C= 0.824 3 0.15
Calculate runoff volume, Vdesign= (C x drtraction x Vdesign= 25 cu-ft 4 Ax (1/12))
Supporting Calculations
Describe system:
The BMP is 24 feet of City Standard bottomless trench.
The total storage volume of the trench is 25 cf ✓ OK
-
15
PA2021-268
Worksheet A: Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs
Provide drawdown time calculations per applicable BMP Fact Sheet:
Effective Depth= 0.53'
Infiltration Rate = 5 in/hr.
Drawdown Time= 0.53' x 12"/5 in/hr= 1.3 hr, use 2 hr
Graphical Operations
>,
(,,)
C Cl ·c:;
~ .... w ., ... = a 41 (J
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0.0 0.2 0.4 0.6 0.8 1 1.0 1 .2 1.4 1.6 1.8 2.0
Fraction ofOesign Capture Storm Depth
Provide supporting graphical operations.
Biofiltration Planter
Drav,•
Tim
---1
--2
3
The soils in the planter will have a minimum infiltration rate of 2.5 in/hr. which will be used for
the design infiltration rate.
Length;;;: 30ft.
Width ;;;: 2.67'
Area;;;: 80 s.f..
Ponding depth;;;: 12"
Storage Volume = 80 cf
Per Worksheet A below, the required storage volume of the trench is 33 cf< 37.5 cf ✓OK
16
PA2021-268
Worksheet B: Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs
Step 1: Determine the design capture storm depth used for calculating volume
1 Enter design capture storm depth, d (inches) d= 0.65 inches
Enter calculated drawdown time of the
2 proposed BMP based on equation provided in T= 6 hours
applicable BMP Fact Sheet, T (hours)
Using Graph, determine the "fraction of
3 design capture storm depth" at which the X1= 0.38 BMP drawdown time (T) line achieves 80%
capture efficiency, X1
4 Enter the effect depth of provided HSCs dHsc= 0 inches upstream, dHsc (inches)
5 Enter capture efficiency corresponding to Y2= 0 % dHSC, Y2
Using Graph determine the fraction of "design
6 capture storm depth" at which the drawdown X2= 0 time (T) achieves the equivalent of the
upstream capture efficiency(Y2), X2
7 Calculate the fraction of design volume that fraction 0.38 must be provided by BMP, fraction= X1 -X2 =
Calculate the resultant design capture storm ..
8 dtraction= 0.25 inches depth (inches), drraction= fraction X d
Step 2: Calculate the DCV
1 Enter Project area tributary to BMP (s), A (sf) A= 2550 sf
2 Enter Project Imperviousness, imp (-1.Jnitless) imp= 0.899
Calculate runoff coefficient, C= (0. 75 x imp) + C= 0.824 3 0.15
Calculate runoff volume, Vdesign= (C X drtraction X Vdesign= 47 cu-ft 4 Ax (1/12))
Supporting Calculations
Describe system:
The BMP is 80 sf biofiltration planter.
The total storage volume of the planter is 80 cf> 47 cf ✓OK
..
17
PA2021-268
Worksheet B: Capture Efficiency Method for Volume-Based, Co~stant Drawdown BMPs
Provide drawdown time calculations per applicable BMP Fact Sheet
Effective Depth = 1'
Infiltration Rate = 2.5 in/hr.
Drawdown Time= 1' x 12"/2.5 in/hr= 4.8 hr, use 6 hr
Graphical Operations
100%
90%
80%
70%
>,
(J
C .!! 60%
(J
E w 50%
GI ...
::I a 40%
~
(J
30%
20%
10%
0% 1 1
0.0 0.2 0.4 0.6 · 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Fraction of Design Capture Stonn Depth
Provide supporting graphical operations.
18
Draw
Tim
---1
--2
3
PA2021-268
Section V: Inspection and Maintenance Responsibilities
BMPs implemented for Non-Priority Projects must be inspected and maintained post-construction for proper
effectiveness into perpetuity. Please document BMP inspection and maintenance information within the table
below. See Te chnical Guidance Document Section 7 for additional information.
BMP Inspection/ Maintenance
BMP Reponsible Inspection / Maintenance Minimum Frequency of
Party(s) Activities Required Activities
-
BMP-1: Bottomless Trench Property Owners • Inspect trench for Monthly
trash and debris.
• Properly dispose of
all removed debris
and sediment.
BMP -2: Biofiltration Planter Property Owners • Inspect Planter for Monthly
sediment and debris.
• Properly dispose of
all removed debris
and sediment.
• Replace any
damaged or dead
plants.
BMP -2: Biofiltration Planter Property Owners • Replenish mulch . Annually
• Inspect inlet &
outlet structures for ,, damage.
19
PA2021-268
Section VI: Plot Plan
A plot plan must be provided that contains the following project features:
• Each facility and its intended function (if multiple facilities and uses are present
onsite)
• Areas of outdoor activities (if applicable)
• Applicable Structu~al Source Control BMPs and any Treatment Control BMPs
• Drainage flow information
• Storm drain facilities
• Relationship between onsite drainage and offsite drainage
The plot plan must contain the following labels:
• Title Block
o Drainage Plot Plan
o Project Name
o Address
o Owner
o Label plot as "Section VI"
• Legend
• North Arrow
• Scale •
Project proponents should submit the plot plan with BMP details in electronic drawing or
GIS format.
1
20
PA2021-268
Attchment 1
Educational Material
16
PA2021-268
R-1
AUTOMOBILE REPAIR AND
MAINTENANCE
Automobile repair and maintenance activities have the potential to
contribute directly to storm drain systems primarily through spills or
the dumping of waste fluids being conveyed to the storm drain.
Automotive fluids, such as oils, greases, and solvents, are
hydrocarbon based, and may contain metals, chlorinated
hydrocarbons, and other toxic compounds. Removal of caked dirt
and grime from an automobile increases the sediment load to the
storm drain system. The pollution prevention activities outlined in
this fact sheets are used to prevent the discharge of pollutants to the
storm drain system.
The activities outlined in this fact
Think before conducting automobile repair and maintenance
activities. Remember -The ocean starts at your front door.
Required Activities
sheet target the following
pollutants:
Sediment
Nutrients
Bacteria
Foamina Aaents
Metals
Hydrocarbons
Hazardous Materials
Pesticides and
Herbicides
Other
• l{ecyde used oil and antifree.7.f' by taking them tu service stations ,r-.1d other
recycling centers. Never pour oil in storm drains or other areas.
• Do not perform repair and maintenance activities during rain events.
X
X
X
X
• Immediately clean up and contain any spills. Dispose of all waste and adsorbent
materials properly.
RECYCLE
USED OIL
• Store hazardous materials and wastes (including, but not limited to, fluids, solvents,
parts containing fluids, batteries) indoors, under cover, or in watertight containers.
• Perform automobile maintenance and repairs over impervious surfaces such as concrete,
so spills and waste material should be readily cleaned up. Use drip pans, plastic
sheeting, etc. to contain spills and waste material.
• Dispose of cleaning solvents at the designated hazardous waste center.
Recommended Activities
• Conduct auto repair activities at a commercial repair facility
• Perform automobile repair and maintenance activities under a covered area.
• Do not buy fluids containing target pollutants (e.g. degreasers containing PERC).
• Monitor parked or stored vehicles and equipment for leaks and place pans under leaks
to collect fluids for proper disposal or recycling.
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600 Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
R-2
AUTOMOBILE WASHING
The activities outlined in this fact
Automobile washing activities have the potential to contribute
pollutants because road dust washed from vehicles may contain
metals and hydrocarbons. Any leaking fluids washed from the
automobile may be carried to the storm drain by the wash water.
Detergents used for automobile washing may also contain
phosphorus and foaming agents, which contribute to the
eutrophication of receiving waterbodies. The pollution prevention
activities outlined in this fact sheets are used to prevent the discharge
of pollutants to the storm drain system.
sheet target the following
pollutants:
Sediment
Nutrients
Bacteria
Foaminq Aoents
Metals
Hydrocarbons
Hazardous Materials
Pesticides and
Herbicides
Other
Think before conducting automobile washing activities. Remember -The ocean starts at your
front door.
Requir~d Activities
• Shake floor mats into trashcan or vacuum to clean. Do not shake over ground.
• If using cleaners (such as acid based wheel cleaners) use a rag to wipe them on and off,
do not rinse them off with water.
• If possible, divert runoff from automobile washing to a grassy surface large enough to
contain and allow complete infiltration
• Dispose of excess wash water into the sanitary sewer (i.e. via sink, or toilet) or onto a
landscaped area that will allow for complete infiltration.
• Conduct engine degreasing at a commercial facility that is set up to handle that type of
waste.
Recommended Activities
• When possible, use commercial wash facilities
• Wash vehicles over pervious surfaces such as lawns and gravel areas
• Choose soaps, cleaners, or detergents labeled "non-toxic", "phosphate free", or
"biodegradable". Vegetable and citrus-based products are typically safest for the
environment.
• Turn off water when not actively washing down automobile.
• If available, use established neighborhood wash areas, where runoff is properly
controlled and managed.
For additional information contact:
County of Orange, OC Watershed
Main : (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
X
X
X
X
X
X
PA2021-268
R-3
AUTOMOBILE PARKING
The activities outlined in this fact
Parked automobiles may contribute pollutants to the storm
drain because poorly maintained vehicles may leak fluids
containing hydrocarbons, metals, and other pollutants. In
addition, heavily soiled automobiles may drop clods of dirt
onto the parking surface, contributing to the sediment load
when runoff is present. During rain events, or wash-down
activities, the pollutants may be carried into the storm drain
system. The pollution prevention activities outlined in this
fact sheets are used to prevent the discharge of pollutants to
the storm drain system.
sheet target the following
pollutants:
Sediment
Nutrients
Bacteria
Foamina Aaents
Metals
Hydrocarbons
Hazardous Materials
Pesticides and
Herbicides
Other
Think before parking your car. Remember -The ocean starts at your front door.
Required Activities
• If required, vehicles have to be removed from the street during designated street
sweeping/ cleaning times.
• If the automobile is leaking, place a pan or similar collection device under the
automobile, until such time as the leak may be repaired.
• Use dry cleaning methods to remove any materials deposited by vehicles (e.g.
adsorbents for fluid leaks, sweeping for soil clod deposits).
Recommended Activities
• Park automobiles over permeable surfaces (e.g. gravel, or porous cement).
• Limit vehicle parking to covered areas.
• Perform routine maintenance to minimize fluid leaks, and maximize fuel
efficiency.
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
X
X
X
X
PA2021-268
R-4
HOME AND GARDEN CARE
ACTIVITIES
HOME CARE The activities outlined in this fact
Many hazardous materials may be used in and around
residences during routine maintenance activities (such as: oils,
paints, cleaners, bleaches, pesticides, glues, solvents, and other
products). Improper or excessive use of these products can
increase the potential for pollutants to be transported to the
storm drain by runoff. The pollution prevention activities
outlined in this fact sheets are used to prevent the discharge of
pollutants to the storm drain system.
Think before conducting home care activities. Remember -The
ocean starts at your front door.
Re~: :ired .Activities
sheet target the following
pollutants:
Sediment X
Nutrients
Bacteria X
Foaminq Aqents X
Metals X
Hydrocarbons X
Hazardous Materials X
Pesticides and
Herbicides
Other X
• Clean out painting equipment in an area where the waste can be contained and properly
disposed of (latex -sewer, oil based -household hazardous waste center).
• Rinse off cement mixers and cement laden tools in a contained washout area. Dispose
of dried concrete waste in household trash.
• If safe, contain, clean up, and properly dispose all household hazardous waste spills. If
an unsafe condition exists, call 911 to activate the proper response team.
• Household hazardous materials must be stored indoors or under cover, and in closed
and labeled containers. Dispose of them at a household hazardous waste center.
• Household wash waters (e.g. washer machine effluent, mop water, etc.) must be
disposed of in the sanitary sewer.
• Pool and spa water may be discharged to the storm drain if residual chlorine is less than
0.1 mg/L, the pH is between 6.5 and 8.5, and the water is free from any unusual
coloration. (Call 714-834-6107 to obtain information on a pool drain permit). Pool filter
media must be contained and disposed of properly.
Recommended Activities
• Only purchase the types and amounts of materials needed.
• Share unused portions of products with neighbors or community programs (latex paint)
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
GARDEN CARE
Garden activities may contribute pollutants via soil erosion,
green waste, fertilizer and pesticide use. Plant and garden
care activities such as landscape maintenance, fertilization,
and pesticide application have the potential to discharge
significant quantities of pollutants to the storm drain system.
Nonvegetated surfaces may allow for significant erosion
leading to high sediment loads. Other pollutants such as
pesticides may adsorb onto the soil particles and be
transported off site. Excess fertilizer and pesticide pollutants
from over application may be carried to the storm drain by
dissolving in irrigation runoff or rainwater. Green wastes ,
may also contain organic matter and may have adsorbed
fertilizers and pesticides.
The activities outlined in this fact
sheet target the following
pollutants:
Sediment X
Nutrients X
Bacteria X
Foamina Aaents
Metals
Hvdrocarbons
Hazardous Materials
Pesticides and X
Herbicides
Other X
Excessive irrigation is often the most significant factor in home and garden care activities.
Pollutants may dissolve in irrigation water and then be transported to the storm drain, or
particles and materials coated with fertilizers and pesticides may be suspended in the irrigation
flow and carried to the storm drain. The pollution prevention activities outlined in this fact
sheets are used to prevent the discharge of pollutants to the storm drain system.
Think before conducting garden care activities. Remember -The ocean starts at your front door.
Reauired Activities
• .irrigation systems must be properly adjusted to reflect seasonal water needs.
• Minimize the use of pesticides and fertilizers. Read the labels and follow directions to
avoid improper use. Do not apply chemicals if it is windy or about to rain.
• Properly clean up and dispose of spills of gardening chemicals, fertilizes, or soils. If
possible, return the spilled material to the container for future use.
• Lawn and garden care products must be stored in closed labeled containers, in covered
areas, or off-ground and under protective tarps.
• Household hazardous waste must be properly disposed at a household hazardous waste
center.
• Cover nonvegetated surfaces to prevent erosion.
Recommended Activities
• Utilize xeroscaping and use of drought and insect resistant landscaping.
• Cultivate garden often to control weeds
• Use integrated pest management (IPM). Planting pest repelling plants (e.g. Marigolds)
or using pest eating insects (e.g. ladybugs) may reduce the need for pesticides.
• Do not leave food (human or pet) outside overnight
• Remove fruit and garden waste
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
R-5
DISPOSAL OF PET WASTES
Pet wastes left in the environment may introduce solids,
bacteria, and nutrients to the storm drain. The type and
quantity of waste will dictate the proper dispos~
method. Small quantities of waste are best disposed
with regular trash or flushed down a toilet. Large
quantities of wastes from herbivore animals may be
composted for subsequent use or disposal to landfill.
Pick up after your pet! It's as easy as 1-2-3. 1) Bring a
bag. 2) Clean it up. 3) Dispose of it properly (toilet or
trash). The pollution prevention activities outlined in
this fact sheets are used to prevent the discharge of
pollutants to the storm drain system.
The activities outlined in this fact
sheet target the following
pollutants:
Sediment X
Nutrients X
Bacteria X
Foaming Agents
Metals
Hvdrocarbons
Hazardous Materials
Pesticides and
Herbicides
Other
Think before you dispose of any p et wastes. Remember -The ocean starts at your front
door.
Required Activities
• All pet wastes must be picked up and properly disposed of. Pet waste should be
disposed of in the regular trash, flushed down a toilet, or composted as type and
quantities dictate.
• Properly dispose of unused flea control products (shampoo, sprays, or collars).
• Manure produced by livestock in uncovered areas should be removed at least
daily for composting, or storage in water-tight container prior to disposal. Never
hose down to stream or storm drain. Composting or storage areas should be
configured and maintained so as not to allow contact with runoff. Compost may
be donated to greenhouses, nurseries, and botanical parks. Topsoil companies
and composting centers may also accept composted manure.
• Line waste pits or trenches with an impermeable layer, such as thick plastic
sheeting.
• When possible, allow wash water to infiltrate into the ground, or collect in an
area that is routed to the sanitary sewer.
• Confine livestock in fenced in areas except during exercise and grazing times.
Restrict animal access to creeks and streams, preferably by fencing.
For additional information contact:
County of Orange, OC Watershed
Main : (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
• Install gutters that will divert roof runoff away from livestock areas.
Recommended Activities
• In order to properly dispose of pet waste, carry bags, pooper-scooper, or
equivalent to safely pick up pet wastes while walking with pets.
• Bathe pets indoors and use less toxic shampoos. When possible, have pets
professionally groomed.
• Properly inoculate your pet in order to maintain their health and reduce the
possibility of pathogens in pet wastes.
• Maintain healthy and vigorous pastures with at least three inches of leafy
material.
• Consider indoor feeding of livestock during heavy rainfall, to minimize manure
exposed to potential runoff.
• Locate barns, corrals, and other high use areas on portions of property that either
drain away from or are: located distant form nearby creeks or storm drains.
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
~
...:...'-.
R-6
DISPOSAL OF GREEN WASTES
Green wastes entering the storm drain may clog the
system creating flooding problems. Green wastes washed
into receiving waters create an oxygen demand as they are
decomposed, reducing the available oxygen for aquatic
life. Pesticide and nutrient residues may be carried to the
receiving water with the green wastes. The pollution
prevention activities outlined in this fact sheets are used to
prevent the discharge of pollutants to the storm drain
system.
The activities outlined in this fact
sheet target the following
pollutants: ' Sediment X
Nutrients X
Bacteria X
Foamina Aaents
Metals
Hydrocarbons
Hazardous Materials X
Pesticides and X
Herbicides
Other
Think before disposing of any green wastes -Remember -The ocean starts at your front
door.
Required Activities
• Green wastes can not be disposed of in the street, gutter, public right-of-way,
storm drain, or receiving water. Dispose of green wastes as a part of the
household trash. If the quantities are too large, arrange a pick up with the local
waste hauler.
• After conducting yard or garden activities sweep the area and properly dispose of
the clippings and waste. Do not sweep or blow out into the street or gutter.
Recommended Activities
• Utilize a commercial landscape company to conduct the landscape activities and
waste disposal.
• Utilize native plants and drought tolerant species to reduce the water use and
green waste produced.
• Use a lawn mower that has a mulcher so that the grass clippings remain on the
lawn and do not have to be collected and disposed of.
• Compost materials in a designated area within the yard.
• Recycle lawn clippings and greenery waste through local programs if available.
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
R-7
,
HOUSEHOLD HAZARDOUS
WASTE .
Household hazardous wastes (HHW) are defined as
waste materials which are typically found in homes or
similar sources, which exhibit characteristics such as:
corrosivity, ignitability, reactivity, and/ or toxicity, or
are listed as hazardous materials by EPA
The activities outlined in this fact
List of most common HHW
products:
Drain openers
Oven cleaners
Wood and metal cleaners and
polishes
Automotive oil and fuel additives
Grease and rust solvents
Carburetor and fuel injection
cleaners
, <:tar:a~ fluids
Batteries
Paint Thinners
Paint strippers and removers
Adhesives
Many types of waste can be
recycled, however options
for each waste type are
limited. Recycling is always
preferable to disposal of
unwanted materials. All
sheet target the following
pollutants: ,
Sediment
Nutrients
Bacteria
Foamina Aaents
Metals
Hydrocarbons
Hazardous Materials
Pesticides and
Herbicides
Other
gasoline, antifreeze, waste oil, and lead-acid batteries
can be recycled. Latex and oil-based paint can be
reused, as well as recycled. Materials that cannot b-2
reused or recycled should be disposed of at a properly
permitted landfill.
X
X
X
X
X
X
Herbicides
Pesticides
Fungicides/wood preservatives
Think before disposing of any household hazardous R E c y c L E
waste. Remember -The ocean starts at your front door. USED OIL
Required Activities
• Dispose of HHW at a local collection facility. Call (714) 834-6752 for the
household hazardous waste center closest to your area.
• Household hazardous materials must be stored indoors or under cover, and in
closed and labeled containers.
• If safe, contain, clean up, and properly dispose all household hazardous waste
spills. If an unsafe condition exists, call 911 to activate the proper response
team.
Recommended Activities
• Use non-hazardous or less-hazardous products.
• Participate in HHW reuse and recycling. Call (714) 834-6752 for the
participating household hazardous waste centers.
The California Integrated Waste Management Board has a Recycling Hotline (800) 553-2962. that provides information and recycling locations for
used oil.
For additional information contact:
County of Orange, OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268
R-8
WATER CONSERVATION
Excessive irrigation and/ or the overuse of water is often
the most significant factor in transporting pollutants to
the storm drain system. Pollutants from a wide variety of
sources including automobile repair and maintenance,
automobile washing, automobile parking, home and
garden care activities and pet care may dissolve in the
water and be transported to the storm drain. In addition,
particles and materials coated with fertilizers and
pesticides may be suspended in the flow and be
transported to the storm drain.
Hosing off outside areas to wash them down not only
The activities outlined in this fact
sheet target the following
pollutants:
Sediment X
Nutrients X
Bacteria X
Foamino Aoents X
Metals X
Hydrocarbons X
Hazardous Materials X
Pesticides and X
Herbicides
Other X
consumes large quantities of water, but also transports any pollutants, sediments, and
waste to the storm drain system. The pollution prevention activities outlined in this fact
s~1ccts are used to prevent the discharge of pollutants to the storm dram system.
Think before using water. Remember -The ocean starts at your front door.
Required Activities
• Irrigation systems must be properly adjusted to reflect seasonal water needs.
• Do not hose off outside surfaces to clean, sweep with a broom instead.
Recommended Activities
• Fix any leaking faucets and eliminate unnecessary water sources.
• Use xeroscaping and drought tolerant landscaping to reduce the watering needs.
• Do not over watering lawns or gardens. Over watering wastes water and
promotes diseases.
• Use a bucket to re-soak sponges/rags while washing automobiles and other
items outdoors. Use hose only for rinsing.
• Wash automobiles at a commercial car wash employing water recycling.
For additional information contact:
County of Orange , OC Watershed
Main: (714) 955-0600/ 24hr Water Pollution Discharge Hotline 1-877-89-SPILL
or visit our website at: www.ocwatersheds.com
PA2021-268