OC Stormwater Resource Plan

Background

SB 985 (Pavley) was signed into law on September 24, 2014 by Governor Brown requiring the preparation of a Storm Water Resource Plan (SWRP) as an eligibility requirement for an entity to receive grant funding from a voter-approved bond initiative (approved after January 1, 2014) for a storm water and/or urban runoff project. The State Water Resources Control Board (SWRCB) indicates that an entity may have existing plans and agreements that are functionally equivalent to a SWRP, and in that case, the entity can provide documentation demonstrating the nexus of its plans and agreements to the requirements in the SWRP Guidelines.

The Orange County Stormwater Resource Plan (OC SWRP) is a functionally equivalent document that has been prepared by OC Environmental Resources per the requirements of SB 985. Four primary significant planning efforts referenced throughout this OC SWRP are used for functional equivalency to meet the SWRP guidelines. These include (1) the 2013/2014 Reports of Waste Discharge (ROWDs), (2) Integrated Regional Watershed Management Plans for North, Central and South Orange County, (3) Watershed Infiltration and Hydromodification Management Plan (WIHMP) mapping tools, and (4) the South Orange County Water Quality Improvement Plan (WQIP).  In addition to meeting the SWRP guidelines, these four primary documents also provide the basis for project identification and prioritization in this OC SWRP (Section 1). Other documents produced by the Plan Agencies are referenced in this OC SWRP to meet specific requirements of Appendix A of the OC SWRP as needed. 

The OC SWRP can be accessed by selecting the button below. The functionally equivalent documents referenced in the OC SWRP can also be accessed by selecting the titled buttons below. 

 

 

               

      

OC Environmental Resources received the acceptance letter from the State Water Resources Control Board (SWRCB) for the functionally equivalent OC SWRP. As a reference the acceptance letter can be accessed at this link OC SWRP acceptance letter.

Document Structure

The OC SWRP is a living, functionally equivalent document comprising several existing planning efforts. The figures below highlight how the four primary functionally equivalent documents are utilized to meet the requirements of SB 985 and the State Water Board SWRP Guidelines. The first figure provides a basic overview of how the four primary functionally equivalent documents comprise the OC SWRP; the second figure provides greater detail.

 

Project Submittal & Prioritization Process

Project identification and prioritization in the OC SWRP is for implementation and funding through the State Water Resources Control Board Proposition 1 Storm Water Grant Program; however, the framework established for prioritization will apply to stormwater projects seeking funding through any applicable State Bond financed grant programs per SB 985. Project prioritization is based upon water quality constituents of concern; opportunities for infiltration or capture and use; and groundwater replenishment (where possible). Regional goals for identification and prioritization of projects were drawn principally from the South Orange County Water Quality Improvement Plan (WQIP), Report of Waste Discharge State of the Environment Reports for the Santa Ana and San Diego Regions of Orange County, and Integrated Regional Watershed Management Plans (IRWM Plans). Project proponents seeking to add a project to the OC SWRP project list will be asked to complete the three project forms at the titled button above; all projects will be prioritized according to the Management Objectives described below and any additional grant-based assessment, as appropriate.

Regional goals are summarized by the OC SWRP Management Objectives below: 

Reference Data

OC SWRP Data

Reference spatial data incorporated into the OC SWRP can be viewed by interacting with the map below. Layer visibility can be toggled by accessing the layer list in the upper left hand corner of the map display.


WIHMP Data


Reference WIHMP data can be viewed by interacting with the map below. Layer visibility can be toggled by accessing the layer list in the upper left hand corner of the map display.Please Note: Due to the extensive list of data, the layer list may load slowly.


Water Quality Monitoring Data


Water quality monitoring locations and sampling results can be obtained on the following section of the OC Watersheds website:

http://www.ocwatersheds.com/rainrecords/waterqualitydata/water_quality_monitoring_data