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WESTMINSTER CITY OF

Colorado — Community Water System — PWSID: CO0101170

System Information

PWSIDCO0101170
System NameWESTMINSTER CITY OF
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityWESTMINSTER
ZIP Code80021
Address8900 PIERCE ST
OrganizationDECKER, RYAN
Phone303-658-2374

Population & Service

Population Served202,078
Service Connections33,619

Drinking Water Violations (18)

This water system has 18 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, 2025 Jan 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Surface Water Treatment Rule
Jan 1, 2025 Jan 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Surface Water Treatment Rule
Jan 1, 2025 Jan 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Surface Water Treatment Rule
Jan 1, 2025 Jan 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Dec 1, 2024 Dec 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2024 Surface Water Treatment Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Jan 1, 1988 Dec 31, 1988 Carbon tetrachloride MR No No — 0.005 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 Trichloroethylene MR No No — 0.005 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 p-Dichlorobenzene MR No No — 0.075 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 1,2-Dichloroethane MR No No — 0.005 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 1,1-Dichloroethylene MR No No — 0.007 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 Benzene MR No No — 0.005 mg/L — Resolved Dec 31, 1988 Volatile Organic Chemicals
Jan 1, 1988 Dec 31, 1988 1,1,1-Trichloroethane MR No No — 0.2 mg/L — Resolved Dec 31, 1988 Volatile 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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