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Water Pollution Regulations
Federal, State and Regional
The Basin Plan was established in 1972 to implement the Federal Clean Water Act and the 1969 California Porter-Cologne Act. Agencies with oversight authority include the United States Environmental Protection Agency, the California Environmental Protection Agency, the California Water Resources Control Board, and the Los Angeles Regional Water Quality Control Board.

The Basin Plan is the main source for many regional water regulations and is the foundation for the National Pollution Discharge Ellimination System (NPDES) and Total Maximum Daily Loads (TMDLs). The City of Commerce is held responsible for water quality standards under an NPDES Permit and TMDLs for trash, metals, nutrients, bacteria, and organics. 

Ordinance No. 536
The City of Commerce adopted Ordinance No. 536 on June 1, 1999 entitled "Stormwater and Runoff Pollution Control" in order to maintain consistency in stormwater compliance and program implementation with the County of Los Angeles. The City adopted by reference the County's Stormwater Ordinance, No. 98-0021.