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CONWAY WATER AND SEWER

New Hampshire — Community Water System — PWSID: NH0511010

System Information

PWSIDNH0511010
System NameCONWAY WATER AND SEWER
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 8, 1979
Last ReportedDec 15, 2025

Location & Contact

StateNew Hampshire
CityCONWAY
ZIP Code03818
Address128 W MAIN ST
OrganizationCONWAY WATER AND SEWER
Phone—

Population & Service

Population Served2,745
Service Connections962

Drinking Water Violations (265)

This water system has 265 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
Apr 1, 2021 Jul 1, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jul 1, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2017 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2017 Consumer Confidence Rule
Jul 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Jul 19, 2012 Lead and Copper Rule
Jul 1, 2010 Oct 1, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 1, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 Oct 1, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 1, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2009 Consumer Confidence Rule
Jul 1, 2009 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2009 Consumer Confidence Rule
Apr 1, 2009 Jul 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jul 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Apr 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 — Lead and Copper Rule MR No No — TT — Resolved Feb 5, 2009 Lead and Copper Rule
Jan 1, 2009 Apr 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Apr 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Apr 1, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 — Lead and Copper Rule MR No No — TT — Resolved Feb 5, 2009 Lead and Copper Rule
Mar 24, 2008 — Public Notice Other No No — — — Resolved Feb 3, 2009 Public Notice Rule and Revised PN Rule
Mar 24, 2008 — Public Notice Other No No — — — Resolved Feb 3, 2009 Public Notice Rule and Revised PN Rule
Jan 1, 2008 Apr 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Apr 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2007 Jan 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2007 Jan 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2007 Jan 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2007 Jan 1, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2008 Lead and Copper Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2008 Lead and Copper Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2008 Lead and Copper Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2008 Lead and Copper Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Jul 27, 2007 Consumer Confidence Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Jul 27, 2007 Consumer Confidence Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2008 Lead and Copper Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2008 Lead and Copper Rule
Jul 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Sep 17, 2008 Lead and Copper Rule
Apr 1, 2007 Jul 1, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007 Jul 1, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 1, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007 Apr 1, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 1, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Aug 1, 2006 Consumer Confidence Rule
Jul 1, 2006 Oct 1, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 1, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Oct 1, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 1, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Oct 1, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 1, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 14, 2005 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 14, 2005 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2004 Jul 1, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 1, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 1, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 1, 2005 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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