The U.S. Environmental Protection Agency (EPA) has identified 1, 2, 3 – Trichloropropane, or TCP, which does not occur naturally in the environment, as an emerging chemical of concern that can threaten drinking water supplies. Under California’s mandatory TCP standard, which started enforcement in January 2018, all water systems in California are required to conduct quarterly monitoring for TCP in water sources for a one-year period.
Many states have, or are currently investigating stricter standards for emerging contaminants and may look to California as a blueprint for updating their regulations.
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About the Author: Lynleigh Love is a Senior Project Geologist with SCS Engineers. She has been a professional geologist for more than 22 years with extensive technical expertise in environmental assessment, remediation, and regulatory compliance. Her experience includes groundwater/soil vapor monitoring, excavation work plans, and remedial action plans.
