ESTERO MUTUAL
PWSID: CA2100519 · Dillon Beach, CA · Serves 206 people
According to EPA Safe Drinking Water Information System (SDWIS), ESTERO MUTUAL (PWSID CA2100519) in Dillon Beach, CA is listed as a CWS water system covering about 206 people. The same extract lists 26 health-based violation records spanning 2010-2021. Those 26 health-based rows for ESTERO MUTUAL cover contaminants such as TTHM, Total Haloacetic Acids (HAA5); they remain historical EPA registry entries, not a current compliance or drinkability score.
ESTERO MUTUAL has 26 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 TTHM, Total Haloacetic Acids (HAA5). Recorded violations span 2010–2021. 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)
- CA2100519
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Dillon Beach, CA
- Population Served
- 206
- Health Violations
- Yes (26)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 21 | 21 |
| Total Haloacetic Acids (HAA5) | 5 | 5 |
Violation History (26)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Oct 1, 2016 |
| TTHM | Yes | Apr 1, 2016 |
| TTHM | Yes | Jan 1, 2016 |
| TTHM | Yes | Oct 1, 2015 |
| TTHM | Yes | Jul 1, 2015 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2015 |
| TTHM | Yes | Jan 1, 2015 |
| TTHM | Yes | Oct 1, 2014 |
| TTHM | Yes | Jul 1, 2014 |
| TTHM | Yes | Jan 1, 2014 |
| TTHM | Yes | Oct 1, 2013 |
| TTHM | Yes | Jul 1, 2013 |
| TTHM | Yes | Jul 1, 2013 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2012 |
| TTHM | Yes | Jul 1, 2012 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2012 |
| TTHM | Yes | Apr 1, 2012 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2011 |
| TTHM | Yes | Oct 1, 2011 |
| TTHM | Yes | Jul 1, 2011 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2011 |
| TTHM | Yes | Apr 1, 2011 |
| TTHM | Yes | Jan 1, 2011 |
| TTHM | Yes | Oct 1, 2010 |
Frequently Asked Questions
What does EPA SDWIS list for ESTERO MUTUAL?
How many people does ESTERO MUTUAL serve?
What violations does ESTERO MUTUAL have?
What contaminants have been found in ESTERO MUTUAL water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ESTERO MUTUAL on cumulative violation count (26) and EPA-reported population served (206). Violation-count peers include FOOTHILLS UTILITIES KINGMAN EAST, DANIELSVILLE, OAKLEY, CITY OF.
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
ESTERO MUTUAL (CA2100519) is drawn from EPA SDWIS. Nearby county systems in this extract include MARIN MUNICIPAL WATER DISTRICT; NPS GGNRA; BOLINAS COMMUNITY PUD; NPS PRNS - BEACHES. Health-based rows (26 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.