CITY OF VALLEJO
PWSID: CA4810007 · Vallejo, CA · Serves 121,420 people
According to EPA Safe Drinking Water Information System (SDWIS), CITY OF VALLEJO (PWSID CA4810007) in Vallejo, CA is listed as a CWS water system covering about 121,420 people. The same extract lists 4 health-based violation records spanning 1990-1991. Those 4 health-based rows for CITY OF VALLEJO cover contaminants such as TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
CITY OF VALLEJO 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 TTHM. Recorded violations span 1990–1991. 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)
- CA4810007
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Vallejo, CA
- Population Served
- 121,420
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 4 | 4 |
Violation History (4)
Frequently Asked Questions
What does EPA SDWIS list for CITY OF VALLEJO?
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What violations does CITY OF VALLEJO have?
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Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CITY OF VALLEJO on cumulative violation count (4) and EPA-reported population served (121,420). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include GRANGER-HUNTER IMPROVEMENT DISTRICT, HARNETT REGIONAL WATER, FARGO CITY OF.
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
CITY OF VALLEJO (CA4810007) is drawn from EPA SDWIS. Nearby county systems in this extract include CITY OF FAIRFIELD; CITY OF VACAVILLE; SUISUN-SOLANO WATER AUTHORITY; CITY OF BENICIA. 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.