HIGHLANDS MUTUAL WATER COMPANY
PWSID: CA1710003 · Clearlake, CA · Serves 7,772 people
According to EPA Safe Drinking Water Information System (SDWIS), HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003) in Clearlake, CA is listed as a CWS water system covering about 7,772 people. The same extract lists 10 health-based violation records spanning 2015-2021. Those 10 health-based rows for HIGHLANDS MUTUAL WATER COMPANY cover contaminants such as Total Haloacetic Acids (HAA5), TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
HIGHLANDS MUTUAL WATER COMPANY has 10 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 Total Haloacetic Acids (HAA5), TTHM. Recorded violations span 2015–2021. 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)
- CA1710003
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Clearlake, CA
- Population Served
- 7,772
- Health Violations
- Yes (10)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 8 | 8 |
| TTHM | 2 | 2 |
Violation History (10)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2019 |
| TTHM | Yes | Oct 1, 2015 |
| TTHM | Yes | Oct 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for HIGHLANDS MUTUAL WATER COMPANY?
How many people does HIGHLANDS MUTUAL WATER COMPANY serve?
What violations does HIGHLANDS MUTUAL WATER COMPANY have?
What contaminants have been found in HIGHLANDS MUTUAL WATER COMPANY water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest HIGHLANDS MUTUAL WATER COMPANY on cumulative violation count (10) and EPA-reported population served (7,772). Violation-count peers include ETHETE WATER SYSTEM, Quechan Utility, Grand Canyon West. Population peers include HARRIS COUNTY MUD 238, AUSTELL, FLATHEAD COUNTY WATER AND SEWER.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
HIGHLANDS MUTUAL WATER COMPANY (CA1710003) is drawn from EPA SDWIS. Nearby county systems in this extract include HIDDEN VALLEY LAKE CSD; KONOCTI COUNTY WATER DISTRICT; LAKEPORT, CITY OF; MT. KONOCTI MUTUAL WATER COMPANY. Health-based rows (10 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.