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EMERALD LAKE

New Hampshire — Community Water System — PWSID: NH1141020

System Information

PWSIDNH1141020
System NameEMERALD LAKE
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedFeb 16, 1990
Last ReportedDec 15, 2025

Location & Contact

StateNew Hampshire
CityHILLSBORO
ZIP Code03244
Address147 W MAIN ST
OrganizationEMERALD LAKE VILLAGE DISTRICT
Phone—

Population & Service

Population Served1,300
Service Connections528

Drinking Water Violations (167)

This water system has 167 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, 2024 Oct 1, 2024 TTHM MR No No — 0.080 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 TTHM MR No No — 0.080 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 TTHM MR No No — 0.080 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 TTHM MR No No — 0.080 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Oct 1, 2024 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Oct 1, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Nov 10, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 7, 2021 Revised Total Coliform Rule
Nov 10, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 7, 2021 Revised Total Coliform Rule
Nov 10, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 7, 2021 Revised Total Coliform Rule
Nov 10, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 7, 2021 Revised Total Coliform Rule
Oct 1, 2021 Nov 1, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 1, 2021 Revised Total Coliform Rule
Oct 1, 2021 Nov 1, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 1, 2021 Revised Total Coliform Rule
Oct 1, 2021 Nov 1, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 1, 2021 Revised Total Coliform Rule
Oct 1, 2021 Nov 1, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 1, 2021 Revised Total Coliform Rule
Oct 2, 2020 — Groundwater Rule TT Yes No — — — Unaddressed — Ground Water Rule
Oct 2, 2020 — Groundwater Rule TT Yes No — — — Unaddressed — Ground Water Rule
Oct 2, 2020 — Groundwater Rule TT Yes No — — — Unaddressed — Ground Water Rule
Jan 23, 2020 — Public Notice Other No No — — — Resolved Feb 7, 2020 Public Notice Rule and Revised PN Rule
Jan 23, 2020 — Public Notice Other No No — — — Resolved Feb 7, 2020 Public Notice Rule and Revised PN Rule
Jan 1, 2020 Mar 31, 2020 Arsenic MCL Yes No .013 MG/L 0.010 mg/L — Resolved Mar 31, 2020 Arsenic Rule
Jan 1, 2020 Mar 31, 2020 Arsenic MCL Yes No .013 MG/L 0.010 mg/L — Resolved Mar 31, 2020 Arsenic Rule
Jan 1, 2020 Mar 31, 2020 Arsenic MCL Yes No .013 MG/L 0.010 mg/L — Resolved Mar 31, 2020 Arsenic Rule
Jan 1, 2020 Mar 31, 2020 Arsenic MCL Yes No .013 MG/L 0.010 mg/L — Resolved Mar 31, 2020 Arsenic Rule
Oct 1, 2019 Dec 31, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Dec 31, 2019 Arsenic Rule
Oct 1, 2019 Dec 31, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Dec 31, 2019 Arsenic Rule
Oct 1, 2019 Dec 31, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Dec 31, 2019 Arsenic Rule
Oct 1, 2019 Dec 31, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Dec 31, 2019 Arsenic Rule
Jul 1, 2019 Sep 30, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Sep 30, 2019 Arsenic Rule
Jul 1, 2019 Sep 30, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Sep 30, 2019 Arsenic Rule
Jul 1, 2019 Sep 30, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Sep 30, 2019 Arsenic Rule
Jul 1, 2019 Sep 30, 2019 Arsenic MCL Yes No .023 MG/L 0.010 mg/L — Resolved Sep 30, 2019 Arsenic Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Jun 30, 2019 Arsenic Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Jun 30, 2019 Arsenic Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Jun 30, 2019 Arsenic Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Jun 30, 2019 Arsenic Rule
Sep 15, 2016 — E. COLI MR No Yes — — — Resolved Sep 30, 2016 Ground Water Rule
Sep 15, 2016 — E. COLI MR No Yes — — — Resolved Sep 30, 2016 Ground Water Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Aug 8, 2016 Consumer Confidence Rule
Jul 1, 2013 Jul 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2013 Total Coliform Rule
Jul 1, 2013 Jul 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2013 Total Coliform Rule
Jul 1, 2013 Jul 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2013 Total Coliform Rule
Jul 1, 2013 Jul 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2013 Total Coliform Rule
Jun 12, 2013 — Public Notice Other No No — — — Resolved Jul 12, 2013 Public Notice Rule and Revised PN Rule
Jun 12, 2013 — Public Notice Other No No — — — Resolved Jul 12, 2013 Public Notice Rule and Revised PN Rule
Apr 24, 2013 — Groundwater Rule TT Yes No — — — Resolved May 1, 2013 Ground Water Rule
Apr 24, 2013 — Groundwater Rule TT Yes No — — — Resolved May 1, 2013 Ground Water Rule
Apr 24, 2013 — Groundwater Rule TT Yes No — — — Resolved May 1, 2013 Ground Water Rule
Apr 24, 2013 — Groundwater Rule TT Yes No — — — Resolved May 1, 2013 Ground Water 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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