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CHESHIRE COUNTY COMPLEX

New Hampshire — Community Water System — PWSID: NH2494010

System Information

PWSIDNH2494010
System NameCHESHIRE COUNTY COMPLEX
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 8, 1979
Last ReportedDec 15, 2025

Location & Contact

StateNew Hampshire
CityKEENE
ZIP Code03431
Address12 COURT ST
OrganizationCHESHIRE COUNTY IT
Phone—

Population & Service

Population Served380
Service Connections6

Drinking Water Violations (289)

This water system has 289 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
Mar 31, 2021 — Lead and Copper Rule MR No No — TT — Resolved Apr 2, 2021 Lead and Copper Rule
Mar 31, 2021 — Lead and Copper Rule MR No No — TT — Resolved Apr 2, 2021 Lead and Copper Rule
Jan 1, 2019 Apr 1, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Apr 1, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Feb 1, 2019 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 1, 2019 Surface Water Treatment Rule
Sep 24, 2017 — Lead and Copper Rule TT Yes No — TT — Resolved Oct 18, 2017 Lead and Copper Rule
Oct 1, 2013 Jan 1, 2014 CARBON, TOTAL MR No Yes — TT — Resolved Jan 1, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Jan 1, 2014 CARBON, TOTAL MR No Yes — TT — Resolved Jan 1, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 Nov 1, 2011 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Nov 1, 2011 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2011 Nov 1, 2011 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Nov 1, 2011 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2011 Nov 1, 2011 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Nov 1, 2011 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2011 Nov 1, 2011 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Nov 1, 2011 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2011 Oct 1, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Oct 1, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Aug 26, 2011 Lead and Copper Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Aug 9, 2010 Consumer Confidence Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Aug 9, 2010 Consumer Confidence Rule
Apr 11, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved May 20, 2010 Lead and Copper Rule
Apr 11, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved May 20, 2010 Lead and Copper Rule
Apr 11, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved May 20, 2010 Lead and Copper Rule
Jan 25, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 21, 2011 Lead and Copper Rule
Jan 25, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 21, 2011 Lead and Copper Rule
Jan 25, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 21, 2011 Lead and Copper Rule
May 1, 2009 — Lead and Copper Rule TT Yes No — TT — Resolved May 14, 2009 Lead and Copper Rule
Nov 1, 2007 Dec 1, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 1, 2007 Surface Water Treatment Rule
Sep 1, 2006 Oct 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 1, 2006 Surface Water Treatment Rule
Sep 1, 2006 Oct 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 1, 2006 Surface Water Treatment Rule
Sep 1, 2006 Oct 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 1, 2006 Surface Water Treatment Rule
Apr 1, 2006 May 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved May 1, 2006 Surface Water Treatment Rule
Apr 1, 2006 May 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved May 1, 2006 Surface Water Treatment Rule
Apr 1, 2006 May 1, 2006 Surface Water Treatment Rule TT Yes No — — — Resolved May 1, 2006 Surface Water Treatment Rule
Jul 1, 2005 Oct 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Oct 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Oct 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Oct 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Oct 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Oct 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Oct 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Oct 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2005 Jun 1, 2005 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 1, 2005 Surface Water Treatment Rule
May 1, 2005 Jun 1, 2005 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 1, 2005 Surface Water Treatment Rule
May 1, 2005 Jun 1, 2005 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 1, 2005 Surface Water Treatment Rule
May 1, 2005 Jun 1, 2005 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 1, 2005 Surface Water Treatment Rule
Apr 1, 2005 Jul 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jul 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jul 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jul 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jul 1, 2005 CARBON, TOTAL TT Yes No — TT — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 1996 Dec 31, 1996 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 1996 Arsenic 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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