Construction Activities | OC Watersheds California - OC Public Works

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. Orange County lies within two different regions of the State Water Quality Control Board's jurisdiction: the Santa Ana Regional Water Quality Control Board and the San Diego Regional Water Quality Control Board.

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, Monday through Friday, 7 a.m. to 5 p.m. PST, at 2301 N. Glassell St., Orange, CA, 92865 or by sending a message through our contact form, or by phone at (714) 955-0600.

The following guidance manual was developed by the Orange County Stormwater Program to assist construction projects in Orange County with understanding how to comply with local and State stormwater runoff requirements:

  • Orange County Stormwater Program Construction Runoff Guidance Manualpicture_as_pdf
OC Construction Runoff Guidance Manual

The following Best Management Practice Fact Sheets and Appendices are from the California Stormwater Quality Association (CASQA) Stormwater Best Management Handbook Portal: Construction.

The County of Orange has obtained these documents through a subscription service available through the CASQA website at casqa.org and has incorporated them into its Local Implementation Plan (LIP) which functions as the County’s stormwater management plan. The CASQA documents posted here are for individual use only and commercial reproduction is strictly prohibited without the prior written approval of CASQA.

Erosion Control

Sediment Control

Tracking Control

Non-Stormwater Management

Waste Management BMPs

EC-1 Scheduling

SE-1 Silt Fence

TC-1 Stabilized Construction Entrance/ Exit

NS-1 Water Conservation Practices

WM-1 Material Delivery and Storage

EC-2 Preservation of Existing Vegetation

SE-2 Sediment Basin

TC-2 Stabilized Construction Roadway

NS-2 Dewatering Operations

WM-2 Material Use

EC-3 Hydraulic Mulch

SE-3 Sediment Trap

TC-3 Entrance/Outlet Tire Wash

NS-3 Paving and Grinding Operations

WM-3 Stockpile Management

EC-4 Hydroseeding

SE-4 Check Dam

Wind Erosion Control

NS-4 Temporary Stream Crossing

WM-4 Spill Prevention and Control

EC-5 Soil Binders

SE-5 Fiber Rolls

WE-1 Wind Erosion Control

NS-5 Clear Water Diversion

WM-5 Solid Waste Management

EC-6 Straw Mulch

SE-6 Gravel Bag Berm

NS-6 Illicit Connection/Discharge

WM-6 Hazardous Waste Management

EC-7 Geotextiles and Mats

SE-7 Street Sweeping and Vacuuming

NS-7 Potable Water/Irrigation

WM-7 Contaminated Soil Management

EC-8 Wood Mulching

SE-8 Sandbag Barrier

NS-8 Vehicle and Equipment Cleaning

WM-8 Concrete Waste Management

EC-9 Earth Dikes and Drainage Swales

SE-9 Straw Bale Barrier

NS-9 Vehicle and Equipment Fueling

WM-9 Sanitary/Septic Waste Management

EC-10 Velocity Dissipation Devices

SE-10 Stormdrain Inlet Protection

NS-10 Vehicle and Equipment Maintenance

WM-10 Liquid Waste Management

EC-11 Slope Drains

SE-11 Chemical Treatment/Active Treatment Systems

NS-11 Pile Driving Operations

EC-12 Streambank Stabilization

SE-12 Manufactured Linear Sediment Controls

NS-12 Concrete Curing

EC-13 Reserved

SE-13 Compost Sock Berms

NS-13 Concrete Finishing

EC-14 Compost Blanket

SE-14 Biofilter Bags

NS-14 Material Over Water

EC-15 Soil Preparation / Roughening

NS-15 Demolition Adjacent to Water

EC-16 Non-Vegetative Stabilization

Appendices

Appendix B: Stormwater Pollution Prevention Plan Outline

Appendix C: Rain Event Action Plan Template

Appendix D: Field Monitoring and Analysis Guidance - Field Logs

Appendix E: Bioassessment Summary and Resources

Appendix F: Guidance on Selection of Temporary Slope Stabilization

Appendix G: SWPPP Template

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