Meyers Water Co.
PWSID: CA2800530
This system has no unresolved violations. The most recent violation on record was 2023-01-01.
This system has more violations on record than 73% of water systems in California.
Violation trend: 0.8 per year over the last 5 years, up from 0.4 per year in the previous 5.
System Details
| Population Served | 250 |
| Service Connections | 102 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Private |
| Status | Active |
| City | Napa |
| EPA ZIP on File | 94558 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Copper (90th percentile) | 2.3500 mg/L | 1.300 mg/L | Exceeds Action Level |
| Copper (90th percentile) | 1.8700 mg/L | 1.300 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0670 mg/L | 0.015 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0514 mg/L | 0.015 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0331 mg/L | 0.015 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0307 mg/L | 0.015 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0205 mg/L | 0.015 mg/L | Exceeds Action Level |
| Lead (90th percentile) | 0.0125 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0100 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0097 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0068 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0060 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0027 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) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (6 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 1040 | MR | 2023-01-01 | Major | Returned to Compliance |
| 1040 | MR | 2023-01-01 | Major | Acknowledged |
| 1045 | MCL Measured: 130.00 UG/L (EPA limit: 10 mg/L) | 2021-07-01 | Yes | Acknowledged |
| 1045 | MCL Measured: 130.00 UG/L (EPA limit: 10 mg/L) | 2021-07-01 | Yes | Returned to Compliance |
| 8000 | MON | 2021-01-01 | Major | Returned to Compliance |
| 8000 | MON | 2019-04-01 | Major | Returned to Compliance |
Understanding This Water System's Record
Meyers Water Co. is a community water system water system that draws from groundwater sources and serves a population of 250 in Napa, California. 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.