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PRYOR WATER SYSTEM

Montana — Community Water System — PWSID: 083090012

System Information

PWSID083090012
System NamePRYOR WATER SYSTEM
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

StateMontana
CityCROW AGENCY
ZIP Code59022
AddressP.O. Box 129
OrganizationSTOPS, JR., MARVIN (WES)
Phone406-697-4765

Population & Service

Population Served406
Service Connections98

Drinking Water Violations (208)

This water system has 208 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, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Dec 30, 2023 — Lead and Copper Rule MR No No — TT — Resolved Jul 28, 2023 Lead and Copper Rule
Dec 7, 2023 — E. COLI MR No Yes — — — Resolved Jan 10, 2025 Ground Water Rule
Oct 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved May 7, 2024 Consumer Confidence Rule
Oct 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved May 7, 2024 Consumer Confidence Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved May 22, 2024 Consumer Confidence Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved May 22, 2024 Consumer Confidence Rule
Jan 1, 2023 Mar 31, 2023 Chlorine MR No No — 4.0 mg/L — Resolved Mar 14, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2022 — Lead and Copper Rule MR No No — TT — Resolved Jul 28, 2023 Lead and Copper Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Nov 28, 2020 — Groundwater Rule TT Yes No — — — Resolved May 13, 2021 Ground Water Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jun 2, 2022 Lead and Copper Rule
Apr 1, 2020 Apr 30, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2020 Revised Total Coliform Rule
Jan 1, 2020 Dec 31, 2022 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Nickel MR No Yes — — — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Nickel MR No Yes — — — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2022 Synthetic 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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