CALIFORNIA WATER SERVICE - SAN CARLOS
PWSID: CA4110007 · San Jose, CA · Serves 35,344 people
According to EPA Safe Drinking Water Information System (SDWIS), CALIFORNIA WATER SERVICE - SAN CARLOS (PWSID CA4110007) in San Jose, CA is listed as a CWS water system covering about 35,344 people. The same extract lists 3 health-based violation records spanning 2015-2015. Those 3 health-based rows for CALIFORNIA WATER SERVICE - SAN CARLOS cover contaminants such as Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
CALIFORNIA WATER SERVICE - SAN CARLOS has 3 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. 1 distinct EPA contaminant code appears in this system's record, including Surface Water Treatment Rule. Recorded violations span 2015–2015. 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)
- CA4110007
- System Type
- CWS
- Water Source
- Surface Water
- Location
- San Jose, CA
- Population Served
- 35,344
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Surface Water Treatment Rule | 3 | 3 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| Surface Water Treatment Rule | Yes | Mar 1, 2015 |
| Surface Water Treatment Rule | Yes | Mar 1, 2015 |
| Surface Water Treatment Rule | Yes | Mar 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for CALIFORNIA WATER SERVICE - SAN CARLOS?
How many people does CALIFORNIA WATER SERVICE - SAN CARLOS serve?
What violations does CALIFORNIA WATER SERVICE - SAN CARLOS have?
What contaminants have been found in CALIFORNIA WATER SERVICE - SAN CARLOS water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CALIFORNIA WATER SERVICE - SAN CARLOS on cumulative violation count (3) and EPA-reported population served (35,344). Violation-count peers include Mohegan Tribal Utility Authority, RED CLIFF NORTH, Tesuque Pueblo. Population peers include Roseville, ROSS COUNTY WATER CO INC, AVION WC - GREATER AVION.
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
CALIFORNIA WATER SERVICE - SAN CARLOS (CA4110007) is drawn from EPA SDWIS. Nearby county systems in this extract include SAN JOSE WATER; CWS - BAKERSFIELD; CALIFORNIA WATER SERVICE - STOCKTON; BAKERSFIELD, CITY OF. Health-based rows (3 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.