Environmental Monitoring

LA Sanitation (LASAN) oversees the City's Clean Water Program, which is responsible for operating and maintaining one of the world's largest wastewater collection, treatment, and reclamation systems, treating wastewater from residential, commercial, and industrial sources in the City of Los Angeles and 29 surrounding communities. Extensive testing at wastewater treatment and water reclamation plants ensure their optimal performance and abidance with all federal, state, and local regulations.

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Each water reclamation plant has a well-equipped lab for testing and monitoring of samples taken in LA City

Labs, Sampling, and Testing

LASAN conducts tests in the fields of chemistry, microbiology, and marine, estuarine, and freshwater biology. Our laboratories perform critical analyses for the City's industrial waste pretreatment program.