Tapcensus

Water quality for ZIP code 94510

ZIP 94510 covers Benicia and Fairfield in Solano County, California, one of 15 ZIP codes in the county. 64 active public water systems serve the county; 12 had an EPA violation in the past three years.

Most likely your provider

City of Benicia CA4810001 · Community water system · Surface water · Benicia
Serves 27,131 people Rules violated, past 3 years 0 Last sanitary survey Oct 24, 2023 Distance 2.0 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Solano County

25 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
City of Vallejo-Lakes System
Vallejo		 2,800 0 5.4 mi
City of Vallejo
Vallejo		 121,420 0 5.5 mi
Cresta Mesa Parque
 25 0 10.7 mi
City of Fairfield
Fairfield		 120,720 1 11.9 mi
Travis Afb Wtp Vallejo
 3 0 12.0 mi
Suisun-Solano Water Authority
 29,105 2 12.6 mi
California Water Service Co.-Travis Afb
 18,111 0 15.4 mi
Collinsville Water Works
 25 1 15.6 mi
Sid Blue Ridge Oaks
 63 1 15.9 mi
Sid Peabody
 56 0 16.3 mi
California State Prison Solano
 3,882 0 17.7 mi
Delta Conservation Camp
 65 0 17.8 mi
Vaca Villa Apartments
 60 0 18.4 mi
Hidden Acres Trailer Villa
 80 1 19.8 mi
City of Vacaville
Vacaville		 99,650 0 20.3 mi
Sid Elmira
 290 0 21.3 mi
Sid Gibson Canyon
 535 2 21.4 mi
Sid Pleasant Hills Ranch
 89 1 21.6 mi
Rural North Vacaville Water District
 1,313 0 23.4 mi
City of Rio Vista
Rio Vista		 11,206 1 24.2 mi
Vineyard RV Park
 550 0 24.7 mi
Sid Quail Canyon
 132 0 26.9 mi
Snug Harbor RV LP
 24 0 29.2 mi
California Water Service Co. Dixon
 10,623 0 29.4 mi
City of Dixon
 12,540 0 29.7 mi
Non-community systems in Solano County (38: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Caymus Cordelia Winery
Fairfield 		75 0 0
Rush Ranch Open Space
 656 0 0
West Wind Winery
 103 0 0
Rockwell Collins Inc. (fka Upco-Utas)
 510 1 1
Blue Victorian Winery
 100 0 0
Birds Landing Hunting Preserve
 100 0 0
Western Railway Museum
 50 0 0
EB Stone
 42 0 0
Connection Point Church
Vacaville 		202 0 0
Midway Stars 76 Gas Station & Food Mart
Vacaville 		111 0 0
Sievers Water Works
Vacaville 		110 0 0
Easterly Wwtp Vacaville
Vacaville 		70 0 0
Moose Lodge 1967
 159 0 0
Valley Evangelical Free Church
 1,200 0 0
Neil's Service Center
 170 0 0
Mariani Packing Company, Inc.
 320 0 0
Vaca-Dixon Substation
 40 0 0
Northbay Logistics Center Fka Savemart
 180 0 0
Midway Foods
 100 0 0
Midway RV Park
 48 0 0
Hastings Island Hunting Preserve
 100 0 0
Stocking Ranch Deepwell
 53 0 0
Hines Nursery Winters South
 100 0 0
Lake Solano Park
 1,019 0 0
Dixon Migrant Center
 346 1 1
Superior Packing CO
 156 0 0
Punjabi Dhaba
 155 0 0
Self-Serve Petroleum
 1,210 0 0
Hines Nurseries Winters North
 150 2 1
Neil's Service Center II
 55 0 0
Campbell Soup Dixon
 25 0 0
Pedrick Produce
 120 1 0
Gill Sidhu Chevron
 255 0 0
Dixon 76
 149 0 0
Gotham Greens
Davis 		60 0 0
Hunter Hill Safety Roadside Rest Area
 3,707 0 0
Wooden Valley Winery
 250 0 0
Harris Moran Seed Company
 64 0 0
About this data

Water systems are matched to Solano County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The California records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.