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COKEVILLE, TOWN OF

Wyoming — Community Water System — PWSID: WY5600015

System Information

PWSIDWY5600015
System NameCOKEVILLE, TOWN OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerYes
First ReportedFeb 13, 1979
Last ReportedNov 17, 2025

Location & Contact

StateWyoming
CityCOKEVILLE
ZIP Code83114
AddressPO Box 99
OrganizationPECK, COLBY
Phone307-279-3227

Population & Service

Population Served535
Service Connections184

Drinking Water Violations (223)

This water system has 223 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, 2025 Sep 30, 2025 Radium-226 MR No Yes — — — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Combined Uranium MR No Yes — 30 ug/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Combined Uranium MR No Yes — 30 ug/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Nitrite MR No Yes — 1 mg/L — Archived Sep 30, 2025 Nitrate Rule
Jul 1, 2025 Sep 30, 2025 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 Sep 30, 2025 Nitrate-Nitrite MR No Yes — — — Archived Sep 30, 2025 Nitrate Rule
Jul 1, 2025 Sep 30, 2025 Radium-228 MR No Yes — — — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 6, 2024 — Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 30, 2025 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Aug 10, 2022 Lead and Copper Rule
Apr 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Aug 10, 2022 Lead and Copper Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Feb 11, 2022 — Surface Water Treatment Rule TT Yes No — — — Resolved May 28, 2025 Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2021 Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2021 Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2021 Surface Water Treatment Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Mar 19, 2021 Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Mar 19, 2021 Lead and Copper Rule
Oct 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Apr 19, 2021 Consumer Confidence Rule
Oct 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Apr 19, 2021 Consumer Confidence Rule
Oct 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Apr 19, 2021 Consumer Confidence Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 11, 2021 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 11, 2021 Lead and Copper Rule
Aug 14, 2020 — Revised Total Coliform Rule TT Yes No — — — Resolved Dec 23, 2020 Revised Total Coliform Rule
Aug 14, 2020 — Revised Total Coliform Rule TT Yes No — — — Resolved Dec 23, 2020 Revised Total Coliform Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Feb 22, 2021 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Feb 22, 2021 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Feb 22, 2021 Consumer Confidence Rule
Jul 1, 2020 Jul 31, 2020 Revised Total Coliform Rule MCL Yes No — — — Resolved Jul 31, 2020 Revised Total Coliform Rule
Jul 1, 2020 Jul 31, 2020 Revised Total Coliform Rule MCL Yes No — — — Resolved Jul 31, 2020 Revised Total Coliform Rule
Jul 1, 2020 Jul 31, 2020 Revised Total Coliform Rule MCL Yes No — — — Resolved Jul 31, 2020 Revised Total Coliform Rule
Jul 1, 2020 Jul 31, 2020 Revised Total Coliform Rule MCL Yes No — — — Resolved Jul 31, 2020 Revised Total Coliform Rule
Jul 1, 2020 Jul 31, 2020 Revised Total Coliform Rule MCL Yes No — — — Resolved Jul 31, 2020 Revised Total Coliform Rule
Jan 1, 2020 Dec 31, 2022 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Inorganic 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 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2022 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2022 Thallium, Total MR No Yes — 0.002 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 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Inorganic 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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