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GREYBULL, TOWN OF

Wyoming — Community Water System — PWSID: WY5600022

System Information

PWSIDWY5600022
System NameGREYBULL, 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
CityGREYBULL
ZIP Code82426
AddressP.O. Box 271
OrganizationNORTON, DAWN
Phone307-765-9431

Population & Service

Population Served3,260
Service Connections1,325

Drinking Water Violations (78)

This water system has 78 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
Jan 1, 2024 Dec 31, 2024 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2022 Dec 31, 2024 Combined Uranium MR No Yes — 30 ug/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Combined Uranium MR No Yes — 30 ug/L — Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Radium-228 MR No Yes — — — Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Radium-228 MR No Yes — — — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Radium-226 MR No Yes — — — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2022 Dec 31, 2024 Radium-226 MR No Yes — — — Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Sep 1, 2018 Aug 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Aug 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2019 BHC-GAMMA MR No No — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Benzo(a)pyrene MR No No — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 LASSO MR No No — — — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Endrin MR No No — 0.002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dalapon MR No No — 0.2 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dinoseb MR No No — 0.007 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Carbofuran MR No No — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 OXAMYL MR No No — 0.2 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 LASSO MR No No — — — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 OXAMYL MR No No — 0.2 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Glyphosate MR No No — 0.7 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Picloram MR No No — 0.5 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No No — 0.0004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Endothall MR No No — 0.1 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Glyphosate MR No No — 0.7 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Methoxychlor MR No No — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2-DIBROMO-3-CHLOROPROPANE MR No No — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Toxaphene MR No No — 0.003 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Endrin MR No No — 0.002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 BHC-GAMMA MR No No — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Methoxychlor MR No No — 0.04 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Toxaphene MR No No — 0.003 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Diquat MR No No — 0.02 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Atrazine MR No No — 0.003 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No No — 0.0004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor epoxide MR No No — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2019 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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