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Water Quality
Management Plan BUILDINODIVISIOK
BUILDING DIVISION " • - -- -
SEP 1 6 2021 (WQMP) AUG 2 4 2021
Priority Project gac�
BY S.R.Q.
Project Name:
Snell Residence
508 Via Lido Nord
Newport Beach, CA 92663
Prepared for:
Tina and John Devir
508 Via Lido Nord
Newport Beach, CA 92663
Prepared by:
Thomas M. Ruiz, P.E.
Forkert Engineering & Surveying, Inc.
22311 Brookhurst Street, Ste 203
Huntington Beach, CA 92646
o-
s M,
714-963-6793
EXP. 12-31-22 /*
Date: °NVL
' of cap
April 5, 2021
I
Water Quality Management Plan (WQMP)
Project Owner's Certification
EPermit/Application No.
Grading Permit No.
No Building Permtt No(P 'f5 APN S ec' Lot Numbers if Portions of Tract)
APN. 423 19r 02
This Water Quality Management Plan (WQMP) has beenprepared for Tina and John Devir by
11
Forkert Engineering &Surveying, Inc. 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: Tina and John Devir
Title
Company
508 Via Lido Nord
Address
Newport Beach, CA 92663
Email
Signature
508 Via Lido Nord
EV�IZ l2 c�IN'l�`�'G Cowl
it
Date
Owner's Certification
Water Quality Management Plan (WQMP)
Contents
Page No.
I.
Discretionary Permits and Water Quality Conditions....................3
IIAProject
Description.......................................................................4
II.2
Potential Stormwater Pollutants ..................................................
5
II.3
Hydrologic Conditions of Concern ................................................
6
II.4
Post Development Drainage Characteristics ................................
7
II.5
Property Ownership/ Management ............................................... 7
III.1
Physical Setting............................................................................ 8
III.2
Site Characteristics....................................................................... 8
III,3
Watershed Description.................................................................9
IV. 1
Project Performance Criteria......................................................
10
IV.3.1
Hydrologic Source Controls ..................................................
13
IV.3.2
Infiltration BMPs..................................................................
14
IV.3.3
Evapotranspiration, Rainwater Harvesting BMPs................
15
IV.3.4
Biotreatment BMPs..............................................................
16
IV.3.5
Hydromodification Control BMPs.........................................17
IV.3.7
Treatment Control BMPs......................................................18
IV.3.8
Non-structural Source Control BMPs...................................19
IV.3.9
Structural Source Control BMPs...........................................
20
V
Inspection/Maintenance Responsibility for BMPs .....................
21
VI
Site Plan and Drainage Plan .......................................................
22
VII
Educational Materials.................................................................23
Attachments
AttachmentA..................................................................................................... PLOT Plan
AttachmentB.................................................................................. Educational Materials
Attachment C ......................................... Reference Exhibits from County of Orange TGD
508 Via Lido Nord
Water Quality Management Plan (WQMP)
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).
508 Via Lido Nord Section I
Page 3
Project Infomation
Permit/Application No.
;Permit Tract/Parcel Map No. Lot 493 of Tract
Map No. 907
-..... --... ....... ........................................................-....--.........--.....................................................................................................................................-.....................i........................................---------------
Additional Information/
Comments:
Water Quality Conditions
Priority Project:
Water Quality
Impervious surface of 2,500 square feet or more located within or directly
Conditions
adjacent to (within 200 ft.) or discharging directly to receiving water
(list verbatim)
1 within environmentally sensitive areas (San Diego Creek, upper and lower
Newport Bay, Buck Gully, Los Trankos, Little Corona del Mar Beach,
Crystal Cove State Beach).
Watershed -Based Plan Conditions
Provide applicable
No WIHMP for lower Newport Bay
conditions from watershed - TMDLS: Copper, DDT (Dichlorodiphenyltrichloroethane)
based plans including
i Indicator Bacteria, Nutrients, PCBs (Polychlorinated biphenyls), Pesticides
WII MPs and TMDLS.
; Sediment Tonicity
508 Via Lido Nord Section I
Page 3
Water Quality Management Plan (WQMP)
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 ,
i Priority Project:
Development Category
: Impervious surface of 2,500 square feet or more located within or directly adjacent
(Verbatim from WQMP):
to (within 200 ft.) or discharging directly to receiving water within environmentally
sensitive areas (San Diego Creek, upper and lower Newport Bay, Buck Gully, Los
Trankos, Little Corona del Mar Beach, Crystal Cove State Beach).
...............................................
Project Area (ftz): 3,150
.......................................................................................................................................................................
......................................................................T................................................
E Number of Dwelling Units: _ _ _ 1 : SIC Code 1521
Narrative Project
' The project consists of the construction of a single family residence with an
Description:
: attached garage, concrete walkways and patios. The project is located in
Newport Beach, CA in the NOC Permit Area.
.......................................................................................................... r........................................................
Pervious Impervious
:.............................. T.......................................................... T.......................
Project Area Area Area
Percentage Percentage
(acres or sq ft) (acres or sq ft)
............................................... L ............................... i........................... L ................................ .......................
Pre -Project Conditions 0 sf 0% 3150 sf 100%
............................................... L.............................. i........................... L ................................ ........ ...............
Post -Project Conditions80 sf 3% 3,070 sf 97%
............................................... L ............................... ........................... L ................................ .......................
Drainage : The existing lot is lower next Newport Bay and steps up going back toward the
Patterns/ Connections Alley. There are no storm drain connections on site.
508 Via Lido Nord Section II
WQMP Page 4
Water Quality Management Plan (WQMP)
/ 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
Circle One:
E=Expected to
Pollutant be of concern Additional Information and Comments
N=Not Expected
to be of concern
Suspended-Solid/ Sediment 1 E 1 1 303(d) listed impairment/TMDL
- ............. ..... -........... ....... ..-.-.-..._---- ................. .;.-.-..-.-.-._.-.-.-...._;-.-..-.-.....-.-.-...-.......-.-.-.-...-.....--.-......-.-....--------------------------..-.-.-.-.-.-....-.-........._-.-...-..-...-..-.-.-....
Nutrients E 1303(d) listed impairment/TMDL
303(d) listed impairment/TMDL
Heavy Metals N
i Not expected per OCTGD Table 2.1.
.. ....... ...... ...... .................. .............. .... .........
.......... .........
............ ;._............... --............ ..-............. -.............. ._............ -............... -... ........... --....._..............-__.-...-----
Pathogens (Bacteria/ Virus) E 303(d) listed impairment/TMDL
-
--- .;----------
----; -........ ._-.-.-.-..-._.._-............---.-.-.-..._-.-.-....-..--_.....................----------.-.-.._-.-.-.-.-.-...............------------
Pesticides E 303(d) listed impairment/TMDL
Oil and Grease E
------------- .... ......................................................-- ............._.........-.__ ---- ...
---- ------- ...--------------- _------------- .--------------------- ------....--....._.-.
Toxic Organic Compounds 1 N
.............................._.-................................._.........--.-•._-.-......-.__......-;...--.............. _....... ;....... .-------------- ...... .... ..... _.
............._............... ............... --........---.-................-.-.-_.-.-.-.-.-.-.-.....-.-.-.-_.
Trash and Debris E
-�uu Via Lido Nord Section II
WQMP Page 5
Water Quality Management Plan (WQMP)
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 NOOC or Section
2.2.3.2 for <SOC>.
® No - Show map
❑ Yes - Describe applicable hydrologic conditions of concern below. Refer to Section 2.2.3 in the
TGD.
Based on Figure XVI -3d of the OCTGD, the project does not fall in an area of Potential Areas
of Erosion, Habitat, & Physical Structure Susceptibility. There are no streams downstream
susceptible to hydromodification impacts. Therefore no HCOC exists.
See Attachment C.
508 Via Lido Nord Section II
WQMP Page 6
Water Quality Management Plan (WQMP)
II.4 Post Development Drainage Characteristics
Describe post development drainage characteristics. Refer to Section 2.2.4 in the TGD.
The lot will be raised up from next to Newport Bay to level out the site some. The new residential building will
occupy most of the lot. The lot will be graded to drain away from the building toward area drains. All runoff
will be then piped to an infiltration trench located next to Newport Bay.
There will be no direct storm drain connections.
II.5 Property Ownership/ Management
Describe property ownership/management. Refer to Section 2.2.5 in the TGD.
The property owner will be responsible for the long term maintenance of the facilities.
508 Via Lido Nord Section II
WQMP Page 7
Water Quality Management Plan (WQMP)
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 Lido Isle Community Association
--------------------- ---... ........-...--..--....... ----------....................... .... ...
508 Via Lido Nord
Location/ Address ------------------------ ---- -- --------------------- _-------------------------- ------ --.-.--.-.-.-.-.-...
Newport Beach, CA
Land Use Residential
Zoning ; Residential
Acreage 0.0723 (3150 sf)
Predominant Soil Type Soil Type D per OCTD Exhibit XVI -2a
111.2 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" per Orange County Rainfall Zones Map, Figure XVI -1 of the
Technical Guidance Document
;The project site is located at 508 Via Lido Nord in the City of Newport Beach,
'California. The parcel is rectangular in shape and is bordered by residential
;properties to the east and west, Lido Channel to the north, and Via Lido Nord
Topography ito the south.
;The lot is currently developed with a single-family residence, hardscape,
;small basement, and landscape.
508 Via Lido Nord Section III
WQMP Page 8
Water Quality Management Plan (WQMP)
Drainage The existing lot is lower next Newport Bay and steps up going back toward
Patterns/Connections the Alley. There are no storm drain connections on site.
.........................................................-.........................._ ........---- ---------- ...--...... ------.....................--................--.................... ----- -- - -----....... -......................................
.
Per the soils report prepared by Coast Geotechnical, Inc., the earth materials
encountered were classified as artificial fill underlain by native soils to the
Soil Type, Geology, and maximum depth explored. The fills were encountered to a depth of about
Infiltration Properties two feet below existing grade. Native soils encountered consisted of tan,
light gray tan, clean, fine to medium grained sand, damp to moist, and light
graV tan to graV clean, fine to medium grained sand.
Site Characteristics (continued)
--............................................._..----_-..............--------.......... .- ...... .__.... -..----.._--------.............. _................-_..................................
Hydrogeologic
(Groundwater) Conditions Groundwater was encountered at 8.o to 8.5 feet below ground.
Geotechnical Conditions Native soils encountered consisted of tan, light gray tan, clean, fine to
(relevant to infiltration) medium grained sand, damp to moist, and light gray tan to gray clean, fine
to medium grained sand.
...........................................................................................................................................
Off -Site Drainage There is no off-site drainage onto the site.
Utility and Infrastructure
No utilities on lot except for service lines.
Information
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
303(d) Listed Impairments
Applicable TMDLs
Pollutants of Concern for
the Project
Environmentally Sensitive
and Special Biological
Significant Areas
Lower Newport Bay
Lower Newport Bay
Suspended -Solid/ Sediment, Nutrients, Pathogens (Bacteria/Virus)
Sediments, Nutrients, Pathogens, Pesticides, Oil & Grease, Trash & Debris
The site runoff does not discharge directly to an
508 Via Lido Nord Section III
WQMP Page 9
Water Quality Management Plan (WQMP)
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 7.11-
2.4.2.2 of the Model WQMP.
• Determine applicable LID performance criteria. Refer to Section 7.11-2.4.3 of the Model WQMP.
• Determine applicable treatment control BMP performance criteria. Refer to Section 7.11-3.2.2 of
the Model WQMP.
• Calculate the LID design storm capture volume for the project. Refer to Section 7.11-2.4.3 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.
508 Via Lido Nord Section IV
WQMP Page 10
Water Quality Management Plan (WQMP)
Project Performance Criteria (continued)
.........................................................
If HCOC exists,
-......................-......................._...........................-------...................._...__.._...._......_...................--------------...................------- .... ._....................._.
list applicable
hydromodification
Based on Figure XVI -3d of the OCTGD, the project does not fall in an area of Potential
control
Areas of Erosion, Habitat, & Physical Structure Susceptibility. Therefore no HCOC
performance
exists.
criteria (Section
See Attachment C
7.II-2.4.2.2 in
MWQMP)
Priority Projects must infiltrate, harvest and use, evapotranspire, or biotreat/biofilter,
List applicable LID
1 the 85th percentile, 24-hour storm event (Design Capture Volume).
performance
A properly designed bio -treatment system may only be considered if infiltration,
criteria (Section
harvest and use, and evapotranspiration (ET) cannot be feasibly implemented for the
7.II-2.4.3 from
full design capture volume. In this case, infiltration, harvest and use, and ET practices
MWQMP)
must be implemented to the greatest extent feasible and bio -treatment may be
provided for the remaining design capture volume.
List applicable
treatment control
If treatment control BMPs can treat all of the remaining unmet volume and have a
BMP performance
medium to high effectiveness for reducing the primary POCs, the project is considered
to be in compliance; a waiver application and participation in an alternative program is
criteria (Section
not required.
7.II-3.2.2 from
MWQMP)
_......._....
..._.... ....... ............................................................ ......... ___................. ...........
1 V= C x d x A x 4356o sf/ac x 1/12 in/ft
Calculate LID
C = runoff coefficient = (0.75 x imp + 0.15) =0.75 x 0.97 +.15 = o.88
design storm
d = storm depth (inches) =0.7 in Per Fig XVI -i- OC TGD
capture volume
A = tributary area (acres) = 3150 SF = 0.0723 ac
for Project.
i V= o.88 x .70 x 0.0723 x 43,56o x 1/12 =162 cf
508 Via Lido Nord Section IV
WQMP Page 11
Water Quality Management Plan (WQMP)
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.
The project consists of the removal of an existing residence and exterior improvements and the construction of
a single family residence with an attached garage, walkways and patios. The new site will be raised near
Newport Bay, and will still step up as it approaches the alley. The site will be graded to drain away from the
new building and toward area drains.
Per the soils report, the native sands consisted of tan, light gray tan, clean, fine to medium grained sand, damp
to moist, and light gray tan to gray clean, fine to medium grained sand. Infiltration trenches will be used to
satisfy the requirements of the WQMP.
The site will be divided into z Drainage Management Areas (DMA). Most of the runoff will be from the roof
which will be collected into an area drain line as well as any surface water. The runoff will then be piped to
infiltration trenches located next to Newport Bay.
See Attachment A for PLOT plan.
SOS Via Lido Nord
WQMP Section IV
Page 12
Water Quality Management Plan (WQMP)
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.
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
site design)
Elpavers,
Other:
El—
Other:
Other:
❑
The retention criteria will be met with infiltration. HSCs are not required
508 Via Lido Nord Section IV
WQMP Page 13
Water Quality Management Plan (WQMP)
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.
Infiltration trench per City of Newport Beach, t51f max per z000 sf of impervious surface
DMAr=DMA2 =156o sf =156o x 15 / z000 = I1.7 - use Iz if
Storage Volume
rz x z' x z' = 48 cf x .40 porosity =19 cf
508 Via Lido Nord Section IV
WQMP Page 14
TECHNICAL GUIDANCE DOCUMENT
Table 2.7. Infiltration BMP Feasibility Worksheet
2-34 May 19, 2011
Infeasibility Criteria
Yes
No
Would Infiltration BMPs pose significant risk for
groundwater related concerns? Refer to Appendix VIII
N
(Worksheet 1) for guidance on groundwater -related
infiltration feasibility criteria.
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
Would Infiltration BMPs pose significant risk of
increasing risk of geotechnical hazards that cannot be
mitigated to an acceptable level? (Yes if the answer to
any of the following questions is yes, as established by a
geotechnical expert):
• The BMP can only be located less than 50 feet away
2
from slopes steeper than 15 percent
• The BMP can only be located less than eight feet from
N
building foundations or an alternative setback.
• A study prepared by a geotechnical professional or an
available watershed study substantiates that
stormwater infiltration would potentially result in
significantly increased risks of geotechnical hazards
that cannot be mitigated to an acceptable level.
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
3
Would infiltration of the DCV from drainage area violate
N
downstream water rights?
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
2-34 May 19, 2011
TECHNICAL GUIDANCE DOCUMENT
Table 2.7. Infiltration BMP Feasibility Worksheet (continued)
2-35 May 19, 2011
Partial Infeasibility Criteria
Yes `
No
Is proposed infiltration facility located on HSG D soils or
4
the site geotechnical investigation identifies presence of
N
soil characteristics which support categorization as D
soils?
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
Is measured infiltration rate below proposed facility
5
less than 0.3 inches per hour? This calculation shall be
based on the methods described in Aupendix VII.
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
Would reduction of over predeveloped conditions
cause impairments to downstream beneficial uses,
6
such as change of seasonality of ephemeral washes
or increased discharge of contaminated groundwater
to surface waters?
Provide citation to applicable study and summarize findings relative to the amount of infiltration
that is permissible:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
Would an increase in infiltration over predeveloped
conditions cause impairments to downstream
7
beneficial uses, such as change of seasonality of
ephemeral washes or increased discharge of
contaminated groundwater to surface waters?
Provide citation to applicable study and summarize findings relative to the amount of infiltration
that is permissible:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
2-35 May 19, 2011
TECHNICAL GUIDANCE DOCUMENT
Table 2.7: Infiltration BMP Feasibility Worksheet (continued)
Infiltration Screening Results (check box corresponding to result):
Is there substantial evidence that infiltration from the
project would result in a significant increase in AI to the
sanitary sewer that cannot be sufficiently mitigated? (See
Appendix XVII)
N
8
Provide narrative discussion and supporting evidence:
Summarize findings of studies provide reference to
studies, calculations, maps, data sources, etc. Provide
narrative discussion of study/data source applicability.
If any answer from row 1-3 is yes: infiltration of any volume
is not feasible within the DMA or equivalent.
g
Provide basis:
Summarize findings of infeasibility screening
-----------------------------
If any answer from row 4-7 is yes, infiltration is
permissible but is not presumed to be feasible for the
entire DCV. Criteria for designing biotreatment BMPs to
achieve the maximum feasible infiltration and ET shall
10
apply.
Provide basis:
Summarize findings of infeasibility screening
If all answers to rows 1 through 11 are no, infiltration of the
11
full DCV is potentially feasible, BMPs must be designed to
x
infiltrate the full DCV to the maximum extent practicable.
Harvest and Use Infeasibility
Harvest and use infeasibility criteria include:
If inadequate demand exists for the use of the harvested rainwater. See Appendix X for
guidance on determining harvested water demand and applicable feasibility thresholds.
If the use of harvested water for the type of demand on the project violates codes or
ordinances most applicable to stormwater harvesting in effect at the time of project
application and a waiver of these codes and/or ordinances cannot be obtained. It is
noted that codes and ordinances most applicable to stormwater harvesting may change
2-36 May 19, 2011
Water Quality Management Plan (WQMP)
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. <Delete or leave blank if not used>
Name Included?
All HSCs; See Section IV.3.1
Surface -based infiltration BNMs
Biotreatment BNIPsAbove-ground
cisterns and basins
]EE1
erground detentionOther:
Other:
Il Other: I ❑ II
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.
Project does not meet feasibility requirement for rainwater harvesting. See Worksheet J.
508 Via Lido Nord Section IV
WQMP Page 15
TECHNICAL GUIDANCE DOCUMENT APPENDICES
Table X.8: Minimum Irrigated Area for Potential Partial Capture Feasibility
General Landscape
Ty e
Conservation Design: KL = 0.35
Active Turf Areas: KL = 0.7
Closest ET Station
Irvine Santa Ana Laguna
I Irvine I Santa Ana I Laguna
Design Capture Storm
Depth, inches
Minimum Required Irrigated Area per Tributary Impervious Acre for
Potential Partial apture, ac/ac
0.60
0.66
0.68
0.72
0.33
0.34
0.36
0.65
0.72
0.73
0.78
0.36
0.37
0.39
0.70
0.77
0.79
0.84
0.39
0.39
0.42
0.75
0.83
0.84
0.90
0.41
0.42
0.45
0.80
0.88
0.90
0.96
0.44
0.45
0.48
0.85
0.93
0.95
1.02
0.47
0.48
1 0.51
0.90
0.99
1.01
1.08
0.49
0.51
0.54
0.95
1.04
1.07
1.14
0.52
0.53
0.57
1.00
1.10
1.12
1.20
0.55
0.56
0.60
Worksheet J: Summary of Harvested Water Demand and Feasibility
1
What demands for harvested water exist in the tributary area (check all that apply):
2
Toilet and urinal flushing
❑
3
Landscape irrigation
cx
4
Other:
❑
5
What is the design capture storm depth? (Figure III.1)
d
0.65
inches
6
What is the project size?
A
0.1173
ac
7
8
What is the acreage of impervious area?
For projects with both toilet flushing and indoor demand
What is the minimum use required for partial capture? (Table
X.6)
IA 0.1092
ac
9Pd
9
What is the project estimated minimum wet season total daily
use?
9Pd
10
Is partial capture potentially feasible? (Line 9 > Line 8?)
For projects with only toilet flushing demand
11
What is the minimum TUTIA for partial capture? (Table X.7)
12
What is the project estimated TUTIA?
X-13 May 19, 2011
TECHNICAL GUIDANCE DOCUMENT APPENDICES
Worksheet J: Summary of Harvested Water Demand and Feasibility
13
Is partial capture potentially feasible? (Line 12 > Line 11?)
For projects with only irrigationdemand
14
What is the minimum irrigation area required based on
conservation landscape design? ( Table X.8)
0.0852
ac
15
What is the proposed project irrigated area? (multiply
conservation landscaping by 1; multiply active turf by 2)
0.0081
ac
16
Is partial capture potentially feasible? (Line 15 > Line 14?)
NO
Provide supporting assumptions and citations for controlling demand calculation:
X-14 May 19, 2011
Water Quality Management Plan (WQMP)
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. <Delete or leave blank if not used>
Name
Included?
Bioretention with underdrains
❑
Stormwater planter boxes with underdrains
❑
Rain gardens with underdrams
❑
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.
508 Via Lido Nord Section IV
WQMP Page 16
Water Quality Management Plan (WQMP)
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. <Delete or leave blank if not used>
Hydromodification Control BMPs
BMP Name I BMP Description
508 Via Lido Nord Section IV
WQMP Page 17
Water Quality Management Plan (WQMP)
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. <Delete or leave blank if not used>
Treatment Control BMPs
BMP Name I BMP Description
I Pre -2 I Catch basin insert
508 Via Lido Nord Section IV
WQMP Page 18
Water Quality Management Plan (WQMP)
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
Check One
Identifier
Name
If not applicable, state brief
Included
Not
reason
Applicable
N1
Education for Property Owners,
®
1:1Tenants
and Occupants
..........................................................................................................................................................
N2
Activity Restrictions
E]®
N/A -Single Family Residence
..........................................................................................................................................................
N3
Common Area Landscape
❑
®
N/A -Single Family Residence
Management
..........................................................................................................................................................
N4
BMP Maintenance
®
❑
..........................................................................................................................................................
N5
Title 22 CCA Compliance (How
El®
N/A -Single Family Residence
development will comply)
..........................................................................................................................................................
N6
Local Industrial Permit Compliance
El®
N/A -Single Family Residence
..........................................................................................................................................................
N7
Spill Contingency Plan
1:1®
N/A -Single Family Residence
..........................................................................................................................................................
N8
Underground Storage Tank
El
®
N/A -No Underground tanks
Compliance
..........................................................................................................................................................
N9
Hazardous Materials Disclosure
❑
®
N/A -Single Family Residence
Compliance
..........................................................................................................................................................
N10
Uniform Fire Code Implementation
❑
❑
N/A -Single Family Residence
..........................................................................................................................................................
N11
Common Area Litter Control
❑
®
N/A -Single Family Residence
..........................................................................................................................................................
N12
Employee Training
❑
®
N/A -Single Family Residence
..........................................................................................................................................................
N13
Housekeeping of Loading Docks
❑
®
N/A -Single Family Residence
..........................................................................................................................................................
N14
Common Area Catch Basin Inspection
❑
®
N/A -Single Family Residence
..........................................................................................................................................................
N15
Street Sweeping Private Streets and
❑
®
N/A -Single Family Residence
Parking Lots
N16
...........................................................0...............®...........
Retail Gasoline Outlets
.... ...... ...........................
N A -Sin le FamilyResidence
508 Via Lido Nord Section IV
WQMP Page 19
Water Quality Management Plan (WQMP)
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
Check One
Identifier
Name
If not applicable, state brief
Included
Not
reason
Applicable
S1
Provide storm drain system stenciling
❑
®
Project is Single Family Residence
and signage
Design and construct outdoor material
S2
storage areas to reduce pollution
❑
®
Project is Single Family Residence
introduction
Design and construct trash and waste
S3
storage areas to reduce pollution
❑
®
Project is Single Family Residence
introduction
Use efficient irrigation systems &
S4
landscape design, water conservation,
®
❑
smart controllers, and source control
S5
Protect slopes and channels and
®
El
energy dissipation
Incorporate requirements applicable to
individual priority project categories
❑
®
Santa Ana Region
(from SDRWQCB NPDES Permit)
S6
Dock areas
❑
0
Project is Single Family Residence
S7
Maintenance bays
❑
®
Project is Single Family Residence
58
Vehicle wash areas
❑
®
Project is Single Family Residence
S9
Outdoor processing areas
❑
®
Project is Single Family Residence
S10
Equipment wash areas
❑
®
Project is Single Family Residence
Sil
Fueling areas
❑
®
Project is Single Family Residence
S12
Hillside landscaping
❑
❑
S13
Wash water control for food
❑
®
Project is Single Family Residence
preparation areas
S14
Community car wash racks
❑
Project is Single Fancily Residence
508 Via Lido Nord Section IV
WQMP Page 20
Water Quality Management Plan (WQMP)
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 7.114.0 in the Model WQMP.
BMP Inspection/ Maintenance
Inspection/
--]
Minimum
Responsible
BMP
Maintenance
Frequency of
Party(s)
Activities Required
Activities
Infiltration Trench
Home Owner
Inspect and clean as
Monthly during non -rainy
necessary to ensure flow
season. Weekly during
and drainage. Run auger
rainy season and after a
through as needed.
storm event.
Remove the cover and
Every 3 months.
Pre -2 Catch Basin
clean filter. Replace as
Insert
Home Owner
necessary.
508 Via Lido Nord Section V
WQMP Page 21
Water Quality Management Plan (WQMP)
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.
508 Via Lido Nord Section VI
WQMP Page 22
Water Quality Management Plan (WQMP)
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.acwatersheds.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 Off
Collection Center (North County)
❑
❑
Recycle at Your Local Used Oil
Collection Center (Central County)
❑
❑
Recycle at Your Local Used Oil
Collection Center (South County)
❑
❑
Tips for Maintaining a Septic Tank
System
❑
❑
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
❑
❑
508 Via Lido Nord Section VI
WQMP Page 23
ATTACHMENT A
WQMP PLOT PLAN
0
it
O
Z
O
J
Q
HARDSCAPE
PA/TURF PLANTER AREA/ TURF
DMA DRAINAGE MANAGEMENT
L J
ROOF
L' --- - I
I
II
I
I
11
1
117'54
DN
44(
PRE -2
117'54'57.58"W
VICINITY MAP
NTS
PRE -2
3336"47.64"N
117'54'57.58"W
117'54'57.58"W
11
WQMP PLOT PLAN I
508 VIA LIDO NORD
NEWPORT BEACH, CALIFORNIA
ATTACHMENT B
EDUCATION MATERIALS
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.
1V
Printed on Recycled Paper
Pool Maintenance 0 Do not store items such as cleaners, batteries,
All pool water discharged to the curb, gutter or automotive fluids, paint products, TVs, or
permitted pool drain from your property must meet the computer monitors uncovered outdoors. Take
following water quality criteria: them to a HHWCC for disposal.
■ 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.octandfills.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.
N Always pick up after your pet. Flush waste down
the toilet or dispose of it in the trash.
Yard Maintenance
0 Do not overwater. Water by hand or set
automated irrigation systems to reflect seasonal
water needs.
0 Follow directions on
pesticides and fertilizers
(measure, do not estimate
amounts) and do not use
if rain is predicted within
48 hours.
0 Cultivate your garden
often to control weeds
and reduce the need to
use chemicals.
Vehicle Maintenance
0 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-
CLF.ANUP or visit www.CLEANUP.org.
E Whenever possible, take your vehicle to a
commercial car wash.
0 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.
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ATTACHMENT C
Reference Exhibits of O.C. Technical Guide Document