HomeMy WebLinkAboutPA2022-0311_20221220_WQMP dated 12-08-2022Water Quality
Management Plan
(WQMP)
Priority Project
Project Name:
Fowlkes Custom Residence
2722 Bayshore Drive
Newport Beach, CA 92663
Prepared for:
Steve & Barbara Fowlkes
2722 Bayshore Drive
Newport Beach, CA 92663
Prepared by:
Thomas M. Ruiz, P.E.
Forkert Engineering & Surveying, Inc.
22311 Brookhurst Street, Ste 203
Huntington Beach, CA 92646
714-963-6793
Date:
December 8, 2022
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Owner’s Certification
Project Owner’s Certification
Permit/Application No. Grading Permit No.
Tract/Parcel Map No. Building Permit No.
CUP, SUP, and/or APN (Specify Lot Numbers if Portions of Tract) APN: 049 191 08
This Water Quality Management Plan (WQMP) has been prepared for Steve & Barbara Fowlkes
by 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: Steve & Barbara Fowlkes
Title Owner
Company
Address 2722 Bayshore Drive
Newport Beach, CA 92663
Email
Telephone #
Signature Date
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. ii
Contents Page No.
I. Discretionary Permits and Water Quality Conditions......…………..3
II.1 Project 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
Attachment A . ................................................................................................... PLOT Plan
Attachment B . ................................................................................ Educational Materials
Attachment C . ....................................... Reference Exhibits from County of Orange TGD
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section I
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. Permit Tract/Parcel Map No.
Lot 7 of Tract No.
1014 in The City of
Newport Beach
Additional Information/
Comments:
Water Quality Conditions
Water Quality Conditions
(list verbatim)
Priority Project:
Impervious surface of 2,500 square feet or more located within or
directly adjacent 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).
Watershed-Based Plan Conditions
Provide applicable
conditions from
watershed - based plans
including WIHMPs and
TMDLS.
No WIHMP approved for Lower Newport Bay
TMDL: – Indicator Bacteria, Nutrients, Pesticides, Sedimentation/Siltation,
Copper
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section II
WQMP 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):
Priority Project:
Impervious surface of 2,500 square feet or more located within or directly adjacent
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 (ft2): 4,011 Number of Dwelling Units: _____1_____ SIC Code 1521
Narrative Project
Description:
The project consists of the construction of a single-family residence with an
attached garage, concrete walkways and patios. The project is located in
Newport Beach, CA in the NOC Permit Area.
Project Area
Pervious Impervious
Area
(acres or sq ft) Percentage Area
(acres or sq ft) Percentage
Pre-Project Conditions 283 sf 7% 3,728 sf 93%
Post-Project Conditions 317 sf 8% 3,694 sf 92%
Drainage
Patterns/Connections
The existing building pad slopes slightly toward the street and will remain the
same. The lot drops about 3-4 feet in the back toward the bay. There are no
storm drain connections on the lot.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section II
WQMP Page 5
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 303(d) listed impairment/TMDL
Nutrients E 303(d) listed impairment/TMDL
Heavy Metals N 303(d) listed impairment/TMDL
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 N
Trash and Debris E
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section II
WQMP Page 6
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. No HCOC exists.
See Attachment C.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section II
WQMP Page 7
II.4 Post Development Drainage Characteristics
Describe post development drainage characteristics. Refer to Section 2.2.4 in the TGD.
The existing house will be completely removed and the building pad will stay close in elevation to the existing.
The new house will occupy most of the lot. Walkways and patios will be constructed as part of the project.
The site will be graded to drain away from the residence and into area drains. All runoff from the roof and
surface will be collected into an area drain line. This runoff will be routed to an infiltration trench located next
to the bay. The existing seawall next to the bay will be raised to meet the current requirements.
II.5 Property Ownership/Management
Describe property ownership/management. Refer to Section 2.2.5 in the TGD.
The property owners, Steve & Barbara Fowlkes will be responsible for the long- term maintenance of the
facilities.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section III
WQMP Page 8
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 Bayshores Community Association
Location/Address
2722 Bayshore Dr.
Newport Beach, CA 92662
Land Use Residential
Zoning Residential
Acreage 0.0921 (4011 sf)
Predominant Soil Type Soil Class D per Figure XVI-1 of the Technical Guidance Document.
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” per Orange County Rainfall Zones Map, Figure XVI-1 of the
Technical Guidance Document
Topography
The subject property is located on the east side of Bay Shore Drive along the
Lower Newport Bay Channel. The lot is bordered on the north and south by
similar residential properties. Bay Shore Drive fronts the house on the west
side. The lot includes a sea wall and a boat dock which extends easterly into
the channel.
Exterior elevations vary from approximately 8.6 to 12.5 feet (NAVD88). The
entry into the partial subterranean room is indicated at elevation 7.26 on the
plan. The adjoining properties on the east and west are essentially level with
the subject site with localized areas varying within approximately one foot.
The site presently contains a two-story residence with an attached garage.
There is also a partial subterranean storage room below the east side of the
house. Yard areas are landscaped with planter areas along the sidewalks,
patios and decks. The back deck, the front driveway apron and entry
sidewalk are paved with frosted red brick. The north side yard walk is
concrete with brick joints.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section III
WQMP Page 9
Drainage
Patterns/Connections
The existing building pad slopes slightly toward the street and will remain
the same. The lot drops about 3-4 feet in the back toward the bay. There are
no storm drain connections on the lot.
Soil Type, Geology, and
Infiltration Properties
Per the soils report prepared by R McCarthy Consulting, Inc., The site
surface exposed shallow fill soils and Marine deposits. Subsurface materials
generally consisted of an upper zone of tan-brown sand underlain by
interbedded gray to blue-gray fine to coarse sands, silty sands, clayey sands,
silty clay and silt.
Site Characteristics (continued)
Hydrogeologic
(Groundwater) Conditions Groundwater was observed at 7 to 8 feet below existing grade.
Geotechnical Conditions
(relevant to infiltration)
Subsurface materials generally consisted of an upper zone of tan-brown sand
underlain by interbedded gray to blue-gray fine to coarse sands, silty sands.
Off-Site Drainage There is no off-site drainage onto the site.
Utility and Infrastructure
Information No utilities on lot except for service lines.
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 Harbor
303(d) Listed Impairments Lower Newport Harbor
Applicable TMDLs Pathogens, Nutrients
Pollutants of Concern for
the Project Sediments, Nutrients, Pathogens, Pesticides, Oil & Grease, Trash & Debris
Environmentally Sensitive
and Special Biological
Significant Areas
The site runoff does not discharge directly to an ESA.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 10
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.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 11
Project Performance Criteria (continued)
If HCOC exists,
list applicable
hydromodification
control
performance
criteria (Section
7.II-2.4.2.2 in
MWQMP)
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. Therefore no HCOC
exists.
See Attachment C
List applicable LID
performance
criteria (Section
7.II-2.4.3 from
MWQMP)
Priority Projects must infiltrate, harvest and use, evapotranspire, or biotreat/biofilter,
the 85th percentile, 24-hour storm event (Design Capture Volume).
A properly designed bio-treatment system may only be considered if infiltration,
harvest and use, and evapotranspiration (ET) cannot be feasibly implemented for the
full design capture volume. In this case, infiltration, harvest and use, and ET practices
must be implemented to the greatest extent feasible and bio-treatment may be
provided for the remaining design capture volume.
List applicable
treatment control
BMP performance
criteria (Section
7.II-3.2.2 from
MWQMP)
If treatment control BMPs can treat all of the remaining unmet volume and have a
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
not required.
Calculate LID
design storm
capture volume
for Project.
V = C × d × A × 43560 sf/ac × 1/12 in/ft
C = runoff coefficient = (0.75 × imp + 0.15) =0.75 x 0.92 + .15 = 0.84
d = storm depth (inches) =0.7 in Per Fig XVI-1- OC TGD
A = tributary area (acres) = 4011 SF = 0.0921 ac
V= 0.84x .7 x 0.0921 x 43,560 x 1/12 = 197 cf
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 12
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 construction of a single-family residence with an attached garage, concrete
walkways and patios. The existing residence and hardscape will be removed and the lot will be graded for the
new structure and improvements.
The project lot is located adjacent to Newport Bay. Per the project soils report, the site is underlain by native
sands. Infiltration trenches will be used to satisfy the requirements of the WQMP.
The site will be divided into 2 Drainage Management Areas (DMA). Each DMA will route all runoff from the
roof and the surface to an infiltration trench located in back next to the bay.
See Attachment A for PLOT plan.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 13
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
pavers, site design)
Other:
Other:
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 14
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 = 15 lf/2000 sf impervious surface.
DMA 1 = DMA2 = 1989 sf = 1989 sf x 15 lf / 2000 sf = 15 lf
Storage Volume of Infiltration rock trench:
DMA - 2’x 2’ x 30’ = 120 cf x .40 porosity= 48 cf
Runoff infiltrated to maximum extent possible.
TECHNICAL GUIDANCE DOCUMENT
2-34 May 19, 2011
Table 2.7: Infiltration BMP Feasibility Worksheet
Infeasibility Criteria Yes No
1
Would Infiltration BMPs pose significant risk for
groundwater related concerns? Refer to Appendix VIII
(Worksheet I) 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.
2
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
from slopes steeper than 15 percent
The BMP can only be located less than eight feet from
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
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.
TECHNICAL GUIDANCE DOCUMENT
2-35 May 19, 2011
Table 2.7: Infiltration BMP Feasibility Worksheet (continued)
Partial Infeasibility Criteria Yes No
4
Is proposed infiltration facility located on HSG D soils or
the site geotechnical investigation identifies presence of
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.
5
Is measured infiltration rate below proposed facility
less than 0.3 inches per hour? This calculation shall be
based on the methods described in Appendix VII.
Provide basis:
Summarize findings of studies provide reference to studies, calculations, maps, data sources,
etc. Provide narrative discussion of study/data source applicability.
6
Would reduction of over predeveloped conditions
cause impairments to downstream 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.
7
Would an increase in infiltration over predeveloped
conditions cause impairments to downstream
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.
TECHNICAL GUIDANCE DOCUMENT
2-36 May 19, 2011
Table 2.7: Infiltration BMP Feasibility Worksheet (continued)
Infiltration Screening Results (check box corresponding to result):
8
Is there substantial evidence that infiltration from the
project would result in a significant increase in I&I to the
sanitary sewer that cannot be sufficiently mitigated? (See
Appendix XVII)
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.
9
If any answer from row 1-3 is yes: infiltration of any volume
is not feasible within the DMA or equivalent.
Provide basis:
Summarize findings of infeasibility screening
10
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
apply.
Provide basis:
Summarize findings of infeasibility screening
11
If all answers to rows 1 through 11 are no, infiltration of the
full DCV is potentially feasible, BMPs must be designed to
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
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 15
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 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.
Project does not meet feasibility requirement for rainwater harvesting. See Worksheet J.
TECHNICAL GUIDANCE DOCUMENT APPENDICES
X-13 May 19, 2011
Table X.8: Minimum Irrigated Area for Potential Partial Capture Feasibility
General Landscape
Type Conservation Design: KL = 0.35 Active Turf Areas: KL = 0.7
Closest ET Station Irvine Santa Ana Laguna Irvine Santa Ana Laguna
Design Capture Storm
Depth, inches
Minimum Required Irrigated Area per Tributary Impervious Acre for
Potential Partial Capture, 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 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 □
4 Other:_______________________________________________________ □
5 What is the design capture storm depth? (Figure III.1) d inches
6 What is the project size? A ac
7 What is the acreage of impervious area? IA ac
For projects with both toilet flushing and indoor demand
8 What is the minimum use required for partial capture? (Table
X.6) gpd
9 What is the project estimated minimum wet season total daily
use? gpd
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?
TECHNICAL GUIDANCE DOCUMENT APPENDICES
X-14 May 19, 2011
Worksheet J: Summary of Harvested Water Demand and Feasibility
13 Is partial capture potentially feasible? (Line 12 > Line 11?)
For projects with only irrigation demand
14 What is the minimum irrigation area required based on
conservation landscape design? ( Table X.8) ac
15 What is the proposed project irrigated area? (multiply
conservation landscaping by 1; multiply active turf by 2) ac
16 Is partial capture potentially feasible? (Line 15 > Line 14?)
Provide supporting assumptions and citations for controlling demand calculation:
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 16
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 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.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 17
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 BMP Description
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 18
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 BMP Description
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 19
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 N/A-Single Family Residence
N3 Common Area Landscape
Management N/A-Single Family Residence
N4 BMP Maintenance
N5 Title 22 CCR Compliance (How
development will comply) N/A-Single Family Residence
N6 Local Industrial Permit Compliance N/A-Single Family Residence
N7 Spill Contingency Plan N/A-Single Family Residence
N8 Underground Storage Tank
Compliance N/A-No Underground tanks
N9 Hazardous Materials Disclosure
Compliance N/A-Single Family Residence
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
Parking Lots N/A-Single Family Residence
N16 Retail Gasoline Outlets N/A-Single Family Residence
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section IV
WQMP Page 20
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 Project is Single Family Residence
S2
Design and construct outdoor material
storage areas to reduce pollution
introduction
Project is Single Family Residence
S3
Design and construct trash and waste
storage areas to reduce pollution
introduction
Project is Single Family Residence
S4
Use efficient irrigation systems &
landscape design, water conservation,
smart controllers, and source control
S5 Protect slopes and channels and
provide energy dissipation
Incorporate requirements applicable to
individual priority project categories
(from SDRWQCB NPDES Permit)
Santa Ana Region
S6 Dock areas Project is Single Family Residence
S7 Maintenance bays Project is Single Family Residence
S8 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
S11 Fueling areas Project is Single Family Residence
S12 Hillside landscaping Lot is flat
S13 Wash water control for food
preparation areas Project is Single Family Residence
S14 Community car wash racks Project is Single Family Residence
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section V
WQMP Page 21
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 Responsible
Party(s)
Inspection/
Maintenance
Activities Required
Minimum
Frequency of
Activities
Infiltration Trench Home Owner
Inspect and clean as
necessary to ensure flow
and drainage. Run auger
through as needed.
Monthly during non-rainy
season. Weekly during
rainy season and after a
storm event.
Water Quality Management Plan (WQMP)
2722 Bayshore Dr. Section VI
WQMP Page 22
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)
2722 Bayshore Dr. Section VI
WQMP Page 23
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)
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
ATTACHMENT A
WQMP PLOT PLAN
ATTACHMENT B
EDUCATION MATERIALS
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.
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.
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
ATTACHMENT C
Reference Exhibits of O.C. Technical Guide Document
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LOS ANGELES COUNTYLOS ANGELES COUNTY
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SUBJECT TO FURTHER REVISION
03.67.21.8
Miles
06123
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
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LOS ANGELES COUNTYLOS ANGELES COUNTY
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SUBJECT TO FURTHER REVISION
Source:
Soils: Natural Resources Conservation Service (NRCS)
Soil Survey - soil_ca678, Orange County & Western Riverside
Date of publication: 2006-02-08
!I
03.67.21.8
Miles
05102.5
Kilometers
LEGEND
City Boundaries
Hydrologic Soil Groups
A Soils
B Soils
C Soils
D Soils
http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm
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Santa Ana RiverWatershed
Santa Ana RiverWatershed
South OrangeCounty
Anaheim Bay-
Huntington Harbor
Watershed
John
Wayne
Airport
LOWER PETERS
CANYON RETARDING
BASIN
HICKS CANYON
RETARDING
BASIN
SIPHON
RESERVOIR
ROUND CANYON
RETARDING
BASIN
BEE CANYON
RETARDING
BASIN
EASTFOOT
RETARDING
BASIN
ORCHARD ESTATES
RETENTION BASIN
AGUA CHINON
RETARDING
BASIN
VILLAGE
POND PARK
SAND CANYON
RESERVOIR
SAN JOAQUIN
RESERVOIR
LAGUNA
RESERVOIR
BIG CANYON
RESERVOIR
BONITA
CANYON
RESERVOIR
BASIN
NUMBER 1
NORTH
LAKE
SOUTH
LAKE
BASIN
NUMBER 2
EL MODENA-IRVINE
RETARDING BASIN
HARBOR
VIEW DAM
EAST HICKS
CANYON
RETARDING BASIN
RATTLESNAKE
RESERVOIR
TRABUCO
RETARDING
BASIN
MARSHBURN
RETARDING
BASIN
FIGURE
XVI-3d
JO
B
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1"
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!I 0 8,000 16,0004,000
Feet
Susceptibility
Potential Areas of Erosion, Habitat, &
Physical Structure Susceptibility
Channel Type
Earth (Unstable)
Earth (Stabilized)
Stabilized
Tidel Influence
<= Mean High Water Line (4.28')
Water Body
Basin
Dam
Lake
Reservoir
Other Lands
Airport/Military
PRELIMINARY MAP
SUBJECT TO FURTHER REVISION