Eau Claire Coop Oil Co

PWSID: WI6180717

No active violations
This system has no unresolved violations. The most recent violation on record was 2017-07-01.

This system has more violations on record than 97% of water systems in Wisconsin.

Violation trend: 0.0 per year over the last 5 years, down from 4.8 per year in the previous 5.

System Details

Population Served80
Service Connections1
Water SourceGroundwater
System TypeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityEau Claire
EPA ZIP on File54702-0837

Areas Served

  • Eau Claire, Eau Claire County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0110 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0107 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0020 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0005 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0004 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0003 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0002 mg/L0.015 mg/LBelow Action Level

Violation History (24 total)

ContaminantViolationDateHealth-BasedStatus
7500Other2017-07-01Returned to Compliance
8000MON2017-06-01 MajorReturned to Compliance
5000MR2017-05-01Returned to Compliance
2964MR2017-04-01 MajorReturned to Compliance
2968MR2017-04-01 MajorReturned to Compliance
2969MR2017-04-01 MajorReturned to Compliance
2976MR2017-04-01 MajorReturned to Compliance
2977MR2017-04-01 MajorReturned to Compliance
2980MR2017-04-01 MajorReturned to Compliance
2981MR2017-04-01 MajorReturned to Compliance
2982MR2017-04-01 MajorReturned to Compliance
2983MR2017-04-01 MajorReturned to Compliance
2984MR2017-04-01 MajorReturned to Compliance
2985MR2017-04-01 MajorReturned to Compliance
2987MR2017-04-01 MajorReturned to Compliance
2989MR2017-04-01 MajorReturned to Compliance
2990MR2017-04-01 MajorReturned to Compliance
2991MR2017-04-01 MajorReturned to Compliance
2992MR2017-04-01 MajorReturned to Compliance
2996MR2017-04-01 MajorReturned to Compliance
2979MR2017-04-01 MajorReturned to Compliance
2955MR2017-04-01 MajorReturned to Compliance
2380MR2017-04-01 MajorReturned to Compliance
2378MR2017-04-01 MajorReturned to Compliance

Understanding This Water System's Record

Eau Claire Coop Oil Co is a non-transient non-community water system that draws from groundwater sources and serves a population of 80 in Eau Claire, Wisconsin. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.