SAN ANTONIO WATER COMPANY
PWSID: CA3610085 · Upland, CA · Serves 3,441 people
According to EPA Safe Drinking Water Information System (SDWIS), SAN ANTONIO WATER COMPANY (PWSID CA3610085) in Upland, CA is listed as a CWS water system covering about 3,441 people. The same extract lists 3 health-based violation records spanning 2015-2015. Those 3 health-based rows for SAN ANTONIO WATER COMPANY cover contaminants such as Coliform (TCR); they remain historical EPA registry entries, not a current compliance or drinkability score.
SAN ANTONIO WATER COMPANY 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 Coliform (TCR). 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)
- CA3610085
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Upland, CA
- Population Served
- 3,441
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (TCR) | 3 | 3 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| Coliform (TCR) | Yes | Nov 1, 2015 |
| Coliform (TCR) | Yes | Nov 1, 2015 |
| Coliform (TCR) | Yes | Nov 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for SAN ANTONIO WATER COMPANY?
How many people does SAN ANTONIO WATER COMPANY serve?
What violations does SAN ANTONIO WATER COMPANY have?
What contaminants have been found in SAN ANTONIO WATER COMPANY water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SAN ANTONIO WATER COMPANY on cumulative violation count (3) and EPA-reported population served (3,441). Violation-count peers include Mohegan Tribal Utility Authority, RED CLIFF NORTH, Tesuque Pueblo. Population peers include THE QUEEN'S MEDICAL CENTER, DECATUR CO. WATER CORP., CITY OF CLIFTON.
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 ANTONIO WATER COMPANY (CA3610085) is drawn from EPA SDWIS. Nearby county systems in this extract include CUCAMONGA VALLEY WATER DISTRICT; ONTARIO MUNICIPAL UTILITIES COMPANY; SAN BERNARDINO VALLEY WD; EAST VALLEY WATER DISTRICT. 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.