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Emerging Constituents. Regulatory Initiatives. CDPH: Draft Groundwater Recharge/Reuse Regulation (applied in NPDES permits & WDRs) SWRCB: Blue Ribbon Panel on CECs EPA: Unregulated Contaminants Monitoring Rule. Emerging Constituents Workgroup. Water Wholesalers Water Retailers
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Regulatory Initiatives • CDPH: Draft Groundwater Recharge/Reuse Regulation (applied in NPDES permits & WDRs) • SWRCB: Blue Ribbon Panel on CECs • EPA: Unregulated Contaminants Monitoring Rule
Emerging Constituents Workgroup • Water Wholesalers • Water Retailers • Wastewater Treatment Operators • Regional Board Staff • CDPH Staff • USGS Staff • Analytical Lab Staff • NWRI Staff • Environmental NGOs
OCWD/MWDSC/NWRI Study to Characterize ECs in the Santa Ana Watershed SACRAMENTO SANFRANCISCO State Project Water (SPW) ColoradoRiver SANBERNARDINO LOSANGELES Santa Ana River (SAR) ColoradoRiverWater (CRW) SANDIEGO
Pharmaceuticals Explanation none detected 1 detected 2 detected 3 detected
Toxicological Relevance Pharmaceutical compounds not detected in 91% of wells tested (n = 89). ~0.5 million L >20 million L ~7.5 million L
Public Information Programs Cholecalciferol di-Alpha Tocopheryl Acetate Phytonadione Pyridoxine Hydrochloride Cyanocobalamin
Cholecalciferol Vitamin Ddi-Alpha Tocopheryl Acetate Vitamin EPhytonadione Vitamin KPyridoxine Hydrochloride Vitamin B-6Cyanocobalamin Vitamin B-12