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SAN ANTONIO WATER COMPANY

Serving 1 city in CA

Monitor
1 above health guidelines
3K
People Served
1
City
1
Water Sources
0
MCL Violations

Official SAN ANTONIO WATER COMPANY Resources

SAN ANTONIO WATER COMPANY Service Area

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Service Area

This map shows the approximate service area for SAN ANTONIO WATER COMPANY. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

SAN ANTONIO WATER COMPANY Water Quality Grade

A
Excellent

Water meets all health guidelines with no violations.

Quality Score90/100
1
Above Health Guidelines
0
EPA Violations

Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).

Is SAN ANTONIO WATER COMPANY Water Safe to Drink?

SAN ANTONIO WATER COMPANY has reported 1 contaminant above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 3,191 people across 1 city in CA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

SAN ANTONIO WATER COMPANY Service Area

SAN ANTONIO WATER COMPANY Contact & Information

Mailing Address

139 North Euclid Avenue Upland, CA 91786

Water Sources & Treatment

Water Sources

Groundwater

Treatment Methods

disinfection

Disinfectant Used

hypochlorite, other

SAN ANTONIO WATER COMPANY Annual Water Quality Reports

2026 Water Quality Report
Latest Consumer Confidence Report (CCR)
View Report

Historical reports are being compiled. Check back soon for archived water quality data.

What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.

Recommended Water Filters for SAN ANTONIO WATER COMPANY

Based on water quality data from cities served by SAN ANTONIO WATER COMPANY, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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