Construction Activities

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

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	SE-15 Passive Treatment		NS-15 Demolition Adjacent to Water
EC-16 Non-Vegetative Stabilization			NS-16 Temporary Batch Plants