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FT COLLINS CITY OF

Colorado — Community Water System — PWSID: CO0135291

System Information

PWSIDCO0135291
System NameFT COLLINS 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
CityFORT COLLINS
ZIP Code80521
Address4316 LAPORTE AVE
OrganizationSTONECIPHER, GREGG
Phone970-217-3514

Population & Service

Population Served179,901
Service Connections35,866

Drinking Water Violations (45)

This water system has 45 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
Jul 1, 2024 Jul 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2021 Jun 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No 2.5 NTU — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No 2.5 NTU — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No 2.5 NTU — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No 2.5 NTU — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Apr 30, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2017 Surface Water Treatment Rule
Apr 1, 2017 Apr 30, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2017 Surface Water Treatment Rule
Apr 1, 2017 Apr 30, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2017 Surface Water Treatment Rule
Mar 1, 2017 Mar 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2017 Surface Water Treatment Rule
Mar 1, 2017 Mar 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2017 Surface Water Treatment Rule
Jan 1, 2017 Mar 31, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 Dec 31, 2010 Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2010 Lead and Copper Rule
Jul 1, 2010 Dec 31, 2010 Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2010 Lead and Copper Rule
Jul 1, 2010 Dec 31, 2010 Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2010 Lead and Copper Rule
Jan 1, 2010 Jun 30, 2010 Lead and Copper Rule MR No No — TT — Resolved Jun 30, 2010 Lead and Copper Rule
Jan 1, 2010 Jun 30, 2010 Lead and Copper Rule MR No No — TT — Resolved Jun 30, 2010 Lead and Copper Rule
Jul 1, 2006 Sep 30, 2006 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Sep 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Sep 30, 2006 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Sep 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Sep 30, 2006 Chlorite MR No No — 1.0 mg/L — Resolved Sep 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Sep 30, 2006 Chlorite MR No No — 1.0 mg/L — Resolved Sep 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2002 Aug 31, 2002 Chlorite MR No No — 1.0 mg/L — Resolved Aug 31, 2002 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2002 Aug 31, 2002 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Aug 31, 2002 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2002 Jul 31, 2002 Chlorite MR No No — 1.0 mg/L — Resolved Jul 31, 2002 Stage 1 Disinfectants and Disinfection Byproducts Rule

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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