DTSC SAMPLING FOR LEAD CONCENTRATIONS IN CALIFORNIA PLUMBING PRODUCTS The Department of Toxic Substances Control (DTSC) conducts monitoring and testing of lead content in plumbing products. Based on resources available, DTSC annually selects up to 75 drinking water faucets, or other drinking water plumbing fittings and fixtures, for testing and evaluation using lead plumbing standards set forth in Health and Safety Code (HSC) Section 116875. DTSC acquires the plumbing product samples from wholesale and retail locations that are readily accessible to the public. The testing and evaluation results are posted here on DTSC’s website annually, and transmitted to the California Department of Public Health.
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