CWSC LOS ALTOS SUBURBAN
PWSID: CA4310001 · San Jose, CA · Serves 69,973 people
According to EPA Safe Drinking Water Information System (SDWIS), CWSC LOS ALTOS SUBURBAN (PWSID CA4310001) in San Jose, CA is listed as a CWS water system covering about 69,973 people. The same extract lists 2 health-based violation records spanning 1992-1992. Those 2 health-based rows for CWSC LOS ALTOS SUBURBAN cover contaminants such as Coliform (TCR); they remain historical EPA registry entries, not a current compliance or drinkability score.
CWSC LOS ALTOS SUBURBAN has 2 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 Coliform (TCR). Recorded violations span 1992–1992. 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)
- CA4310001
- System Type
- CWS
- Water Source
- Surface Water
- Location
- San Jose, CA
- Population Served
- 69,973
- Health Violations
- Yes (2)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (TCR) | 2 | 2 |
Violation History (2)
| Contaminant | Health | Date |
|---|---|---|
| Coliform (TCR) | Yes | Nov 1, 1992 |
| Coliform (TCR) | Yes | Nov 1, 1992 |
Frequently Asked Questions
What does EPA SDWIS list for CWSC LOS ALTOS SUBURBAN?
How many people does CWSC LOS ALTOS SUBURBAN serve?
What violations does CWSC LOS ALTOS SUBURBAN have?
What contaminants have been found in CWSC LOS ALTOS SUBURBAN water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CWSC LOS ALTOS SUBURBAN on cumulative violation count (2) and EPA-reported population served (69,973). Violation-count peers include SAINT REGIS MOHAWK TRIBE, REDBY/RED LAKE, Kickapoo Traditional Tribe. Population peers include SEMINOLE COUNTY SOUTHEAST, SUFFOLK, CITY OF, DELRAY BEACH PUBLIC WATER SYSTEM.
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
Explore More
About This Data
CWSC LOS ALTOS SUBURBAN (CA4310001) 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 (2 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.