About
Over 30 years of experience at the US Environmental Protection Agency (USEPA) in San Francisco, Los Angeles, and Washington, D.C., in the Clean Water Act (CWA), Water Quality Standards (WQS) Program. Accomplished, experienced professional with a unique combination of ‘on-the-ground’ environmental scientific and legal expertise. Proficient with issues concerning the federal water quality standards program, including setting approvable human health, aquatic life and wildlife water quality standards (criteria and designated uses) and their implementation. While at the agency, significant experience working with states and Tribes to complete approvable WQS submittals to USEPA, and drafting comment letters and approval documents for the agency. Also, significant experience working with states and Tribes on Total Maximum Daily Loads (TMDLs), and writing TMDL comment letters and approval documents.
Primary author of preamble and rule for the California Toxics Rule (CTR) (40 CFR §131.38) and all proposed and final amendments. The CTR set federal water quality criteria for priority toxic pollutants for the State of California for human health and aquatic life (and wildlife criteria for selenium, December, 2024 final rule). Experience includes many years of working with the State on a wide-range of implementation issues within the CWA WQS program.