HOLYOKE CITY OF

Colorado — Community Water System — PWSID: CO0148005

System Information

PWSIDCO0148005
System NameHOLYOKE CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityHOLYOKE
ZIP Code80734
Address407 E DENVER ST
OrganizationTHOMPSON, JEREMY W
Phone970-854-2266

Population & Service

Population Served2,540
Service Connections1,129

Drinking Water Violations (29)

This water system has 29 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
Oct 1, 2020 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 TTHM MR No Yes 0.080 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 TTHM MR No Yes 0.080 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 TTHM MR No Yes 0.080 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 TTHM MR No Yes 0.080 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Diquat MR No Yes 0.02 mg/L Resolved Dec 31, 2013 Synthetic Organic Chemicals
Oct 1, 1994 Oct 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Oct 31, 1994 Total Coliform Rule
Oct 1, 1994 Oct 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Oct 31, 1994 Total Coliform Rule
Oct 1, 1994 Oct 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Oct 31, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Aug 31, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Aug 31, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No 5% of samples Resolved Aug 31, 1994 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No 5% of samples Resolved Nov 30, 1991 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No 5% of samples Resolved Nov 30, 1991 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No 5% of samples Resolved Nov 30, 1991 Total Coliform 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.

Browse All Water Systems Water Systems in Colorado