Somerset Domestic Wd
PWSID: CO0126715
This system has no unresolved violations. The most recent violation on record was 2024-10-01.
This system has more violations on record than 88% of water systems in Colorado.
Violation trend: 6.4 per year over the last 5 years, up from 4.4 per year in the previous 5.
System Details
| Population Served | 100 |
| Service Connections | 63 |
| Water Source | Groundwater Under Influence |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Somerset |
| EPA ZIP on File | 81434 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Copper (90th percentile) | 2.1600 mg/L | 1.300 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0065 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0062 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0053 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0040 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0028 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0025 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0023 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0021 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0015 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0014 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0009 mg/L | 0.015 mg/L | Below Action Level |
Violation History (59 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 0300 | MR | 2024-10-01 | Returned to Compliance | |
| 0300 | MR | 2024-09-01 | Returned to Compliance | |
| 0300 | MR | 2024-09-01 | Returned to Compliance | |
| 0300 | MR | 2024-08-01 | Returned to Compliance | |
| 0300 | MR | 2024-08-01 | Returned to Compliance | |
| 7500 | Other | 2024-07-28 | Returned to Compliance | |
| 7500 | Other | 2024-07-28 | Returned to Compliance | |
| 0300 | MR | 2024-07-01 | Returned to Compliance | |
| 0300 | MR | 2024-07-01 | Returned to Compliance | |
| 8000 | Other | 2024-06-27 | Returned to Compliance | |
| 0300 | MR | 2024-06-01 | Returned to Compliance | |
| 0300 | MR | 2024-06-01 | Acknowledged | |
| 0300 | MR | 2024-06-01 | Acknowledged | |
| 0300 | MR | 2024-05-01 | Returned to Compliance | |
| 0300 | MR | 2024-05-01 | Acknowledged | |
| 0300 | MR | 2024-05-01 | Returned to Compliance | |
| 0300 | MR | 2024-05-01 | Acknowledged | |
| 2950 | MR | 2023-11-22 | Returned to Compliance | |
| 2950 | MR | 2023-11-22 | Returned to Compliance | |
| 2950 | MR | 2023-11-22 | Returned to Compliance | |
| 2950 | MR | 2023-11-22 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2023-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2023-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2023-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2023-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0820 MG/L (limit: 0.0800 MG/L) | 2023-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0820 MG/L (limit: 0.0800 MG/L) | 2023-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0820 MG/L (limit: 0.0800 MG/L) | 2023-07-01 | Yes | Returned to Compliance |
| 0200 | TT | 2021-11-01 | Yes | Returned to Compliance |
| 0200 | TT | 2021-11-01 | Yes | Returned to Compliance |
| 2456 | MR | 2021-10-01 | Major | Returned to Compliance |
| 2456 | MR | 2021-10-01 | Major | Returned to Compliance |
| 5000 | MR | 2021-04-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0894 MG/L (limit: 0.0800 MG/L) | 2020-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0890 MG/L (limit: 0.0800 MG/L) | 2020-07-01 | Yes | Returned to Compliance |
| 7500 | Other | 2020-05-10 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1022 MG/L (limit: 0.0800 MG/L) | 2020-04-01 | Yes | Returned to Compliance |
| 7500 | Other | 2020-03-09 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0931 MG/L (limit: 0.0800 MG/L) | 2020-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0950 MG/L (limit: 0.0800 MG/L) | 2019-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0920 MG/L (limit: 0.0800 MG/L) | 2019-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0859 MG/L (limit: 0.0800 MG/L) | 2018-07-01 | Yes | Returned to Compliance |
| 7500 | Other | 2018-04-16 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1150 MG/L (limit: 0.0800 MG/L) | 2018-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1230 MG/L (limit: 0.0800 MG/L) | 2018-01-01 | Yes | Returned to Compliance |
| 2950 | MR | 2017-10-16 | Returned to Compliance | |
| 2950 | MR | 2017-10-16 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1490 MG/L (limit: 0.0800 MG/L) | 2017-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1520 MG/L (limit: 0.0800 MG/L) | 2017-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1330 MG/L (limit: 0.0800 MG/L) | 2017-04-01 | Yes | Returned to Compliance |
Showing 50 of 59 historical violations.
Understanding This Water System's Record
Somerset Domestic Wd is a community water system water system that draws from groundwater under influence sources and serves a population of 100 in Somerset, Colorado. 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.