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NAPA, CITY OF

Serving 2 cities in CA

Monitor
1 above health guidelines
87K
People Served
2
Cities
1
Water Sources
0
MCL Violations

Official NAPA, CITY OF Resources

NAPA, CITY OF Service Area

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Service Area

This map shows the approximate service area for NAPA, CITY OF. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

NAPA, CITY OF 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 NAPA, CITY OF Water Safe to Drink?

NAPA, CITY OF 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 87,067 people across 2 cities 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.

Get your water independently tested in California β†’

NAPA, CITY OF Service Area

NAPA, CITY OF Contact & Information

Mailing Address

P.O. BOX 660 Napa, CA 94559

B2B Contact Data

B2B Contact Data Available

Contacts for NAPA, CITY OF

Updated Jan 2026
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NameTitlePhoneEmail
Jβ–ˆβ–ˆβ–ˆβ–ˆ Sβ–ˆβ–ˆβ–ˆβ–ˆWater Treatment Supervisor(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆjβ–ˆβ–ˆβ–ˆβ–ˆ@cityβ–ˆβ–ˆβ–ˆβ–ˆ.gov
Mβ–ˆβ–ˆβ–ˆβ–ˆ Jβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆUtility Director(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆmβ–ˆβ–ˆβ–ˆβ–ˆ@waterβ–ˆβ–ˆβ–ˆβ–ˆ.org
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Water Sources & Treatment

Water Sources

Surface water

Treatment Methods

aerationconventional

Disinfectant Used

hypochlorite, other

Recommended Water Filters for NAPA, CITY OF

Based on water quality data from cities served by NAPA, CITY OF, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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