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NASHUA TOWN OF

Montana — Community Water System — PWSID: MT0000297

System Information

PWSIDMT0000297
System NameNASHUA TOWN OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityNASHUA
ZIP Code59248
AddressPO BOX 47
OrganizationWASHINGTON, CHRISTINA
Phone406-746-3461

Population & Service

Population Served300
Service Connections191

Drinking Water Violations (171)

This water system has 171 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
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2025 Revised Total Coliform Rule
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2025 Revised Total Coliform Rule
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2025 Revised Total Coliform Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Sep 13, 2024 Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Sep 13, 2024 Consumer Confidence Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Aug 1, 2023 Aug 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2023 Revised Total Coliform Rule
Aug 1, 2023 Aug 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2023 Revised Total Coliform Rule
Aug 1, 2023 Aug 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2023 Revised Total Coliform Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Oct 18, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 29, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 17, 2022 Lead and Copper Rule
Sep 29, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 17, 2022 Lead and Copper Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Sep 16, 2022 Consumer Confidence Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Sep 16, 2022 Consumer Confidence Rule
Apr 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Apr 4, 2022 Lead and Copper Rule
Apr 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Apr 4, 2022 Lead and Copper Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Sep 13, 2021 Lead and Copper Rule
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Sep 13, 2021 Lead and Copper Rule
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Sep 13, 2021 Lead and Copper Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jun 1, 2021 Jun 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2021 Revised Total Coliform Rule
Jun 1, 2021 Jun 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2021 Revised Total Coliform Rule
Jun 1, 2021 Jun 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2021 Revised Total Coliform Rule
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2021 Revised Total Coliform Rule
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2021 Revised Total Coliform Rule
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2021 Revised Total Coliform Rule
Apr 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Oct 21, 2022 Lead and Copper Rule
Apr 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Oct 21, 2022 Lead and Copper 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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