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NORCO, CITY OF

California — Community Water System — PWSID: CA3310025

System Information

PWSIDCA3310025
System NameNORCO, CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityNORCO
ZIP Code92860
Address2870 Clark Ave
OrganizationNELSON, SAM
Phone951-270-5677

Population & Service

Population Served25,068
Service Connections7,100

Drinking Water Violations (139)

This water system has 139 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jan 1, 2024 Dec 31, 2024 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Jan 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Jan 1, 2024 Dec 31, 2024 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 LASSO MR No Yes — — — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 LASSO MR No Yes — — — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals
Jan 1, 2024 Dec 31, 2024 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2024 Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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