OC Watersheds Water Quality Management Plan (WQMP)
Section 7, New Development/Significant Redevelopment - Orange County Stormwater
2003 Drainage Area Management Plan (DAMP)
Background
Orange County is under separate NPDES municipal stormwater permits from the San
Diego and Santa Ana Regional Water Quality Control Boards. While Section 7 of the
DAMP, New Development/Significant Redevelopment, lays the foundation for the countywide
program overseeing all new development and significant redevelopment, the actual
program document may vary somewhat depending upon the location of the project. Questions
or comments on this section of the DAMP should be directed to
Grant Sharp
of the OC Watersheds Program.
Map of Regional Board Boundaries
Requirements for New Development and Significant Redevelopment in the Santa Ana
Region of Orange County (area north of El Toro Rd.)
For the area of Orange County within the Santa Ana Regional Water Quality Control
Board jurisdiction of Orange County (area north of El Toro Rd.), the Model WQMP
(DAMP Exhibit 7.II) explains the requirements placed upon all new development and
significant redevelopment projects. The Model WQMP underwent a lengthy public review
process and was approved for implementation by the Executive Officer of the Santa
Ana Regional Water Quality Control Board on September 30, 2003.
Requirements for New Development and Significant Redevelopment in the San Diego
Region of Orange County (area south of El Toro Rd.)
For the area of Orange County within the San Diego Regional Water Quality Control
Board jurisdiction of Orange County (area south of El Toro Rd.), each municipality
was required by the permit to develop a Local WQMP, based on the Model WQMP, to
oversee new development and significant redevelopment within their local jurisdiction.
These Local WQMPs were finalized for implementation on August 13, 2003. The Local
WQMP may vary slightly from city to city so before planning a project, please determine
who has municipal jurisdiction and refer to the appropriate Local WQMP.
For a project in the unincorporated County, south of El Toro Rd., the document which
explains the requirements placed upon all new development and significant redevelopment
projects is the County of Orange Local WQMP (Exhibit A-7.VI of the County’s Local
Implementation Plan). For the Local WQMP in other municipalities of south Orange
County, please refer to the individual city web site.
Guidance for Preparing a Water Quality Management Plan (WQMP)
A template for preparing a WQMP has been developed by the County and each of the
cities of Orange County. These templates can be accessed from each city web site.
The WQMP template to be used for all new development and significant redevelopment
projects in the unincorporated County, regardless of the location, can be accessed
at http://www.ocplanning.net/
Click on WQMP Template.
New Development / Significant Redevelopment (BMPs)
A number of documents are available on these pages that describe the regulations and programs aimed at preventing and controlling the discharge of pollutants to the municipal stormdrain system and receiving waters. Please click here for more detailed information.
Environmentally Sensitive Areas
If a new development or redevelopment project in Orange County involves the addition
of 2,500 square feet or more of impervious surface and is located within, directly
adjacent to (within 200 feet), or discharging directly to receiving waters within
environmentally sensitive areas, then it qualifies as a priority project and is
subject to additional requirements (For a complete list of priority projects, see
Table 7.II-1 of the Model WQMP and Table A-7.VI-1 of the County of Orange Local
WQMP).
For maps of Environmentally Sensitive Areas (ESAs) in Orange County, please see
the following web page: Environmentally Sensitive Area Maps
If there are any questions regarding the details of a document, or to obtain a hard
copy or other alternative formats of the original document, or to have a document
read to you, please contact the OC Public Works offices:
2301 N. Glassell St., Orange, CA, 92865
Monday through Friday, 7:00 am to 5:00 pm PST,
by email at
OC Watersheds,
or by phone at
(714) 955-0603
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