Public water system record

City of Buffalo

Serves Buffalo, Johnson County, WY · 4,419 people served

Federal records show 6 health-based violations and 3 monitoring/reporting issues for City of Buffalo in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • WY5600005
  • BUFFALO
  • WY
  • 4,419 served

System profile

Source water Surface water
ZIP 82834
EPA system ID WY5600005

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
6
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • City of Buffalo draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.08 mg/L, federal limit 0.06 mg/L (1.3 times the limit), 2024.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, February 2006.
  • Record on file since 1982, with 10 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 3 unknown out of 2,499 service lines.

Check whether City of Buffalo serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
220 Jul 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.076 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
220 Apr 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.08 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
220 Apr 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jan 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jan 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
220 Oct 1, 2023 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
Jul 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Feb 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Feb 1, 2018 Resolved

Full record since 1982

EPA's records for City of Buffalo go back to 1982. Before October 19, 2016 they list 10 health-based violations (7 resolved, 3 archived by EPA without a recorded fix) and 11 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 8
1990s 5 2
2000s 4 1
October 19, 2016 to 2019 0 2
2020s 6 1
Date not recorded 1 0

Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began January 2006, Resolved.

Show all 10 health-based violations before October 19, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jan 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Oct 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Jul 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Apr 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 1998 Archived
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 1998 Archived
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 1997 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Not reported Archived

Enforcement actions

EPA took 1 formal enforcement action against City of Buffalo in 2006. The most recent was a compliance order (no penalty) in February 2006.

Date By Action Violations covered
Feb 21, 2006 EPA Compliance order (no penalty) 3 violations (3 health-based): Haloacetic Acids (HAA5)

What the violations mean

Haloacetic Acids (HAA5)

6 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

City of Buffalo draws water from 1 surface water intake.

Annual water quality report

City of Buffalo must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 8.