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ANTELOPE COUNTY WATER AND SEWER

Montana — Community Water System — PWSID: MT0003203

System Information

PWSIDMT0003203
System NameANTELOPE COUNTY WATER AND SEWER
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedJul 1, 1987
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityANTELOPE
ZIP Code59211
Address210 Main St
OrganizationFELLON, MICHELLE
Phone406-480-0791

Population & Service

Population Served59
Service Connections36

Drinking Water Violations (133)

This water system has 133 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
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 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 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
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
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 — Consumer Confidence Rule Other No No — — — Resolved Aug 23, 2021 Consumer Confidence Rule
Jul 1, 2021 — Consumer Confidence Rule Other No No — — — Resolved Aug 23, 2021 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 7, 2020 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 7, 2020 Consumer Confidence Rule
Jan 1, 2020 Jan 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2020 Revised Total Coliform Rule
Jan 1, 2020 Jan 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2020 Revised Total Coliform Rule
Jan 1, 2020 Jan 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2020 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2019 Revised Total Coliform Rule
Aug 31, 2019 Aug 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 31, 2019 Aug 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 31, 2019 Aug 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 31, 2019 Aug 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 31, 2019 Aug 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 31, 2019 Aug 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MCL Yes No 88.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MCL Yes No 88.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MCL Yes No 88.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MCL Yes No 88.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MCL Yes No 88.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No 141.3 UG/L 0.080 mg/L 80 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No 141.3 UG/L 0.080 mg/L 80 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No 141.3 UG/L 0.080 mg/L 80 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No 141.3 UG/L 0.080 mg/L 80 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No 141.3 UG/L 0.080 mg/L 80 Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .1373 MG/L 0.080 mg/L .08 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .1373 MG/L 0.080 mg/L .08 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .1373 MG/L 0.080 mg/L .08 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .1373 MG/L 0.080 mg/L .08 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .0878 MG/L 0.060 mg/L .06 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .0878 MG/L 0.060 mg/L .06 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .0878 MG/L 0.060 mg/L .06 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .1373 MG/L 0.080 mg/L .08 Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .0878 MG/L 0.060 mg/L .06 Resolved Mar 31, 2015 Stage 2 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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