Public Water Partners

GREYBULL, WY · Big Horn County

GREYBULL, TOWN OF Water System

Consumer Confidence Report status

GREYBULL, TOWN OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 item for GREYBULL, TOWN OF that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wyoming’s official records. Always confirm current status with Wyoming before making decisions based on this information.

System facts

System ID (PWSID)
WY5600022
System type
Community Water System
Population served
2,080
Service connections
1,325
Ownership
local government
Water source
groundwater (wells)

GREYBULL, TOWN OF is one of 73 community water systems in Wyoming in the 501 to 3,300 people size category, serving 2,080 people from groundwater.

As of August 1, 2026, its federal record holds 45 entries between 2017 and 2025, of which 1 remains open; none are health-based.

All 45 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Radionuclides and Revised Rad Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2025

    Unaddressed

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2024 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Radium-226

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2022 – December 31, 2024

    Archived

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2022 – December 31, 2024

    Archived

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2022 – December 31, 2024

    Archived

  • Monitoring and Reporting (DBP)

    —

    TTHM

    September 1, 2018 – August 31, 2019

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    September 1, 2018 – August 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2017 – December 31, 2019

    Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is GREYBULL, TOWN OF required to publish a Consumer Confidence Report?

Yes. GREYBULL, TOWN OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is GREYBULL, TOWN OF’s next Consumer Confidence Report due?

GREYBULL, TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does GREYBULL, TOWN OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for GREYBULL, TOWN OF that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

NORTON, DAWN

307-765-9431

GREYBULL, WY 82426