MADERA CO SA16 SUMNER HILL
PWSID: CA2000729 · Madera, CA · Serves 135 people
MADERA CO SA16 SUMNER HILL has 75 health-based violations out of 75 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
MADERA CO SA16 SUMNER HILL (PWSID CA2000729) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 135 people in Madera, CA, and is subject to primacy enforcement by the California drinking-water program.
The system's federal compliance record contains 75 total violations, with 75 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including Haloacetic Acids (HAA5), Total Trihalomethanes (TTHM), Arsenic. Recorded violations span 2015–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the California state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- CA2000729
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Madera, CA
- Population Served
- 135
- Health Violations
- Yes (75)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Haloacetic Acids (HAA5) | 37 | 37 |
| Total Trihalomethanes (TTHM) | 29 | 29 |
| Arsenic | 6 | 6 |
| Chloroform | 3 | 3 |
Violation History (75)
Frequently Asked Questions
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.