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Public water system record

Town of Rock River

Serves Rock River, Albany County, WY · 211 people served

Federal records show no health-based violations and 3 monitoring/reporting issues for Town of Rock River in the last ten years.

  • WY5600048
  • ROCK RIVER
  • WY
  • 211 served

System profile

Source water Surface water
ZIP 82083
EPA system ID WY5600048

Verify this system on EPA ECHO →

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

Key facts

  • Town of Rock River draws water from 1 surface water intake.
  • Most recent formal enforcement: complaint seeking a penalty by EPA, September 2010.
  • Record on file since 1976, with 12 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 32 unknown out of 185 service lines.

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Health-based violations

Since October 2016

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

None since October 2016.

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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
CARBON, TOTAL
Monitoring and reporting
 Jan 1, 2020 Resolved

Full record since 1976

EPA's records for Town of Rock River go back to 1976. Before October 20, 2016 they list 12 health-based violations (7 resolved, 5 archived by EPA without a recorded fix) and 22 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
1980s 0 8
1990s 0 2
2000s 7 8
2010 to October 19, 2016 5 2
2020s 0 3

Most recent health-based violation before October 20, 2016: Haloacetic Acids (HAA5), began April 2012, Resolved.

Show all 12 health-based violations before October 20, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Apr 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.071 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Jan 1, 2012 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Oct 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jul 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 2009 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06123 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Jul 1, 2009 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06066 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Apr 1, 2009 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jan 1, 2009 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06213 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Jul 1, 2008 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06883 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Apr 1, 2008 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 2008 Resolved

Enforcement actions

EPA took 2 formal enforcement actions against Town of Rock River between 2009 and 2010, filed as 3 records in EPA's data. The most recent was a complaint seeking a penalty in September 2010.

Date By Action Violations covered
Sep 28, 2010 EPA Complaint seeking a penalty 15 violations (11 health-based): Haloacetic Acids (HAA5), Surface Water Treatment Rule, Total Trihalomethanes (TTHMs)
Jun 18, 2009 EPA Compliance order (no penalty) 15 violations (10 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Surface Water Treatment Rule

Where the water comes from

Town of Rock River draws water from 1 surface water intake.

Annual water quality report

Town of Rock River 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.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Town of Rock River for a copy.

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.

Certified drinking water labs by state EPA guidance for private wells