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DEVON WATER INC

Montana — Community Water System — PWSID: MT0000200

System Information

PWSIDMT0000200
System NameDEVON WATER INC
System TypeCommunity Water System
Water SourceGround Water Purchased
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CitySHELBY
ZIP Code59474
Address164 WHITE RD
OrganizationWHITE, DALE
Phone406-432-2977

Population & Service

Population Served75
Service Connections24

Drinking Water Violations (780)

This water system has 780 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
Oct 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Oct 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 2, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 2, 2024 Lead and Copper Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 31, 2023 Consumer Confidence Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 31, 2023 Consumer Confidence Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Sep 28, 2022 Consumer Confidence Rule
Jul 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Jul 25, 2022 Lead and Copper Rule
Jul 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Jul 25, 2022 Lead and Copper Rule
Jul 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Jul 25, 2022 Lead and Copper Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Sep 28, 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
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jul 12, 2021 Lead and Copper Rule
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jul 12, 2021 Lead and Copper Rule
Jul 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jul 12, 2021 Lead and Copper Rule
Dec 30, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 20, 2021 Lead and Copper Rule
Dec 30, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 20, 2021 Lead and Copper Rule
Jul 1, 2020 Sep 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 19, 2020 Consumer Confidence Rule
Jul 1, 2020 Sep 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 19, 2020 Consumer Confidence Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jun 9, 2020 Lead and Copper Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jun 9, 2020 Lead and Copper Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jun 9, 2020 Lead and Copper Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MCL Yes No 62.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No 84.9 UG/L 0.080 mg/L 80 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MCL Yes No 62.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MCL Yes No 62.5 UG/L 0.060 mg/L 60 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No 84.9 UG/L 0.080 mg/L 80 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No 84.9 UG/L 0.080 mg/L 80 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2019 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Archived Dec 31, 2019 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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