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ROCHESTER WATER DEPT

New Hampshire — Community Water System — PWSID: NH2001010

System Information

PWSIDNH2001010
System NameROCHESTER WATER DEPT
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
CityROCHESTER
ZIP Code03867
Address209 CHESTNUT HILL RD
OrganizationCITY OF ROCHESTER DPW
Phone—

Population & Service

Population Served25,000
Service Connections7,500

Drinking Water Violations (16)

This water system has 16 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
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Oct 31, 2014 Coliform (TCR) MR No No — 5% of samples — Archived Oct 31, 2014 Total Coliform Rule
Oct 1, 2012 Oct 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2012 Total Coliform Rule
Jan 1, 2005 Mar 31, 2005 TTHM MCL Yes No .083 0.080 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Mar 31, 2005 TTHM MCL Yes No .083 0.080 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2003 Jun 30, 2003 TTHM MCL Yes No .088 0.080 mg/L — Resolved Jun 30, 2003 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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