Is BUFFALO, CITY OF required to publish a Consumer Confidence Report?

Yes. BUFFALO, CITY 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 BUFFALO, CITY OF’s next Consumer Confidence Report due?

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

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.

BUFFALO, WY · Johnson County

BUFFALO, CITY OF Water System

Consumer Confidence Report status

BUFFALO, CITY 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 no open violations for BUFFALO, CITY OF.

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): WY5600005
System type: Community Water System
Population served: 4,419
Service connections: 2,155
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

BUFFALO, CITY OF is among the 24 largest community water systems in Wyoming, serving 4,419 people from surface water.

As of August 1, 2026, its federal record holds 3 entries between 1982 and 2024, all of which EPA lists as closed.

Of the 3, 1 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 the Stage 2 Disinfectants and Disinfection Byproducts Rule and inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2024 – September 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Cadmium
April 1, 1982 – March 31, 1983
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 1982 – March 31, 1983	Monitoring, Regular	Cadmium	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

November 27, 2024State Public Notification received1 linked violation
October 7, 2024State Compliance achieved1 linked violation
October 7, 2024State Compliance achieved1 linked violation
October 7, 2024State Compliance achieved1 linked violation
October 7, 2024State Compliance achieved1 linked violation
July 15, 2024State Compliance achieved1 linked violation
July 15, 2024State Compliance achieved1 linked violation
May 13, 2024State Public Notification received2 linked violations
May 13, 2024State Public Notification received2 linked violations
May 13, 2024State Public Notification received1 linked violation
April 26, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 1, 2023State Public Notification received1 linked violation
February 16, 2022State Compliance achieved1 linked violation
November 9, 2018State Compliance achieved2 linked violations
February 6, 2006State Public Notification requested27 linked violations

Common questions

Is BUFFALO, CITY OF required to publish a Consumer Confidence Report?: Yes. BUFFALO, CITY 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 BUFFALO, CITY OF’s next Consumer Confidence Report due?: BUFFALO, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BUFFALO, CITY OF have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for BUFFALO, CITY OF.
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

TUCKER, TERRY

307-684-0572

BUFFALO, WY 82834