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JEFFREY CITY WATER & SEWER DISTRICT

Wyoming — Community Water System — PWSID: WY5600106

System Information

PWSIDWY5600106
System NameJEFFREY CITY WATER & SEWER DISTRICT
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedNov 17, 2025

Location & Contact

StateWyoming
CityJEFFREY CITY
ZIP Code82310
AddressP.O. Box 100
OrganizationKELSON, REX
Phone307-544-2228

Population & Service

Population Served40
Service Connections25

Drinking Water Violations (593)

This water system has 593 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 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2024 Sep 30, 2024 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2023 Feb 28, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2023 Revised Total Coliform Rule
Feb 1, 2023 Feb 28, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2023 Revised Total Coliform Rule
Jun 24, 2022 — Groundwater Rule TT Yes No — — — Resolved Jul 12, 2024 Ground Water Rule
Jun 24, 2022 — Groundwater Rule TT Yes No — — — Resolved Jul 12, 2024 Ground Water Rule
Jan 1, 2022 Mar 31, 2022 Radium-226 MR No Yes — — — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Radium-228 MR No Yes — — — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Radium-228 MR No Yes — — — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Uranium MR No Yes — 30 ug/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Uranium MR No Yes — 30 ug/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Radium-226 MR No Yes — — — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Sep 29, 2021 — Lead and Copper Rule MR No No — TT — Resolved Dec 16, 2021 Lead and Copper Rule
Sep 29, 2021 — Lead and Copper Rule MR No No — TT — Resolved Dec 16, 2021 Lead and Copper Rule
Apr 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Apr 27, 2021 Lead and Copper Rule
Apr 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Apr 27, 2021 Lead and Copper Rule
Jan 1, 2021 Mar 31, 2021 Radium-228 MR No Yes — — — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Mar 31, 2021 Combined Uranium MR No Yes — 30 ug/L — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Mar 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Mar 31, 2021 Combined Uranium MR No Yes — 30 ug/L — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Dec 31, 2021 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2021 Volatile Organic Chemicals
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Dec 31, 2021 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2021 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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