SAN JOSE WATER
PWSID: CA4310011 · San Jose, CA · Serves 1,039,920 people
According to EPA Safe Drinking Water Information System (SDWIS), SAN JOSE WATER (PWSID CA4310011) in San Jose, CA is listed as a CWS water system covering about 1,039,920 people. The same extract lists 4 health-based violation records spanning 2023-2023. Those 4 health-based rows for SAN JOSE WATER cover contaminants such as Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SAN JOSE WATER has 4 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 2023–2023. 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)
- CA4310011
- System Type
- CWS
- Water Source
- Surface Water
- Location
- San Jose, CA
- Population Served
- 1,039,920
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Surface Water Treatment Rule | 4 | 4 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Surface Water Treatment Rule | Yes | Jun 1, 2023 |
| Surface Water Treatment Rule | Yes | Jun 1, 2023 |
| Surface Water Treatment Rule | Yes | Jun 1, 2023 |
| Surface Water Treatment Rule | Yes | Jun 1, 2023 |
Frequently Asked Questions
What does EPA SDWIS list for SAN JOSE WATER?
How many people does SAN JOSE WATER serve?
What violations does SAN JOSE WATER have?
What contaminants have been found in SAN JOSE WATER water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SAN JOSE WATER on cumulative violation count (4) and EPA-reported population served (1,039,920). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include METROPOLITANO, ATLANTA, SUFFOLK COUNTY WATER AUTHORITY.
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
SAN JOSE WATER (CA4310011) is drawn from EPA SDWIS. Nearby county systems in this extract include CWS - BAKERSFIELD; CALIFORNIA WATER SERVICE - STOCKTON; BAKERSFIELD, CITY OF; CALIFORNIA WATER SERVICE CO. - ELA. Health-based rows (4 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.