STERLING MUTUAL WATER COMPANY
PWSID: CA1910158 · El Monte, CA · Serves 198 people
According to EPA Safe Drinking Water Information System (SDWIS), STERLING MUTUAL WATER COMPANY (PWSID CA1910158) in El Monte, CA is listed as a CWS water system covering about 198 people. The same extract lists 6 health-based violation records spanning 2020-2024. Those 6 health-based rows for STERLING MUTUAL WATER COMPANY cover contaminants such as Coliform (Pre-TCR), LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
STERLING MUTUAL WATER COMPANY has 6 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Coliform (Pre-TCR), LEAD AND COPPER RULE REVISIONS. Recorded violations span 2020–2024. Day-to-day primacy enforcement for this system runs through the California drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current 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)
- CA1910158
- System Type
- CWS
- Water Source
- Groundwater
- Location
- El Monte, CA
- Population Served
- 198
- Health Violations
- Yes (6)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (Pre-TCR) | 5 | 5 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (6)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Coliform (Pre-TCR) | Yes | Jan 1, 2022 |
| Coliform (Pre-TCR) | Yes | Jan 1, 2022 |
| Coliform (Pre-TCR) | Yes | Jan 1, 2022 |
| Coliform (Pre-TCR) | Yes | Aug 1, 2020 |
| Coliform (Pre-TCR) | Yes | Aug 1, 2020 |
Frequently Asked Questions
What does EPA SDWIS list for STERLING MUTUAL WATER COMPANY?
How many people does STERLING MUTUAL WATER COMPANY serve?
What violations does STERLING MUTUAL WATER COMPANY have?
What contaminants have been found in STERLING MUTUAL WATER COMPANY water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest STERLING MUTUAL WATER COMPANY on cumulative violation count (6) and EPA-reported population served (198). Violation-count peers include CHEROKEE WATER SYSTEM, LAME DEER WATER SYSTEM, FOUR BEARS WATER SYSTEM.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
STERLING MUTUAL WATER COMPANY (CA1910158) is drawn from EPA SDWIS. Nearby county systems in this extract include LOS ANGELES-CITY, DEPT. OF WATER & POWER; LONG BEACH UTILITIES DEPARTMENT; SANTA CLARITA VALLEY WATER AGENCY; GSWC - SOUTHWEST. Health-based rows (6 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.