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ALTON WATER WORKS

New Hampshire — Community Water System — PWSID: NH0061010

System Information

PWSIDNH0061010
System NameALTON WATER WORKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedAug 7, 1980
Last ReportedDec 15, 2025

Location & Contact

StateNew Hampshire
CityALTON
ZIP Code03809
AddressPO BOX 803
OrganizationALTON WATER WORKS
Phone—

Population & Service

Population Served1,800
Service Connections712

Drinking Water Violations (391)

This water system has 391 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, 2020 Sep 30, 2020 Arsenic MCL Yes No .011 MG/L 0.010 mg/L — Resolved Sep 30, 2020 Arsenic Rule
Jul 1, 2020 Sep 30, 2020 Arsenic MCL Yes No .011 MG/L 0.010 mg/L — Resolved Sep 30, 2020 Arsenic Rule
Jul 1, 2020 Sep 30, 2020 Arsenic MCL Yes No .011 MG/L 0.010 mg/L — Resolved Sep 30, 2020 Arsenic Rule
Jul 1, 2020 Sep 30, 2020 Arsenic MCL Yes No .011 MG/L 0.010 mg/L — Resolved Sep 30, 2020 Arsenic Rule
Apr 1, 2020 Jun 30, 2020 Arsenic MCL Yes No .019 MG/L 0.010 mg/L — Resolved Jun 30, 2020 Arsenic Rule
Apr 1, 2020 Jun 30, 2020 Arsenic MCL Yes No .019 MG/L 0.010 mg/L — Resolved Jun 30, 2020 Arsenic Rule
Apr 1, 2020 Jun 30, 2020 Arsenic MCL Yes No .019 MG/L 0.010 mg/L — Resolved Jun 30, 2020 Arsenic Rule
Apr 1, 2020 Jun 30, 2020 Arsenic MCL Yes No .019 MG/L 0.010 mg/L — Resolved Jun 30, 2020 Arsenic Rule
Jul 1, 2014 Sep 30, 2014 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Selenium MR No Yes — 0.05 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Selenium MR No Yes — 0.05 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Chromium MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Xylenes, Total MR No Yes — 10 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Barium MR No Yes — 2 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Barium MR No Yes — 2 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Xylenes, Total MR No Yes — 10 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Barium MR No Yes — 2 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Xylenes, Total MR No Yes — 10 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Chromium MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Selenium MR No Yes — 0.05 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Selenium MR No Yes — 0.05 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Barium MR No Yes — 2 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Chromium MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Xylenes, Total MR No Yes — 10 mg/L — Resolved Sep 30, 2014 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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