Tapcensus

Water quality in Rio Vista, California

Rio Vista is in Solano 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 Rio Vista CA4810004 · Community water system · Ground water · Rio Vista
Serves 11,206 people Rules violated, past 3 years 1 Unresolved 1 Last sanitary survey May 29, 2025 Distance under 0.1 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
Snug Harbor RV LP
 24 0 5.0 mi
Delta Conservation Camp
 65 0 8.3 mi
Collinsville Water Works
 25 1 10.6 mi
California Water Service Co.-Travis Afb
 18,111 0 14.4 mi
Sid Elmira
 290 0 16.2 mi
Sid Peabody
 56 0 17.1 mi
Suisun-Solano Water Authority
 29,105 2 17.2 mi
California State Prison Solano
 3,882 0 17.8 mi
City of Vacaville
Vacaville		 99,650 0 19.1 mi
California Water Service Co. Dixon
 10,623 0 19.8 mi
City of Fairfield
Fairfield		 120,720 1 19.8 mi
Vaca Villa Apartments
 60 0 19.9 mi
City of Dixon
 12,540 0 20.2 mi
Sid Blue Ridge Oaks
 63 1 20.5 mi
Vineyard RV Park
 550 0 20.9 mi
Hidden Acres Trailer Villa
 80 1 21.2 mi
Sid Gibson Canyon
 535 2 22.1 mi
Rural North Vacaville Water District
 1,313 0 23.7 mi
Sid Pleasant Hills Ranch
 89 1 24.3 mi
Travis Afb Wtp Vallejo
 3 0 24.3 mi
Cresta Mesa Parque
 25 0 24.6 mi
City of Benicia
Benicia		 27,131 0 25.5 mi
Sid Quail Canyon
 132 0 28.2 mi
City of Vallejo-Lakes System
Vallejo		 2,800 0 29.2 mi
City of Vallejo
Vallejo		 121,420 0 29.2 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
Hastings Island Hunting Preserve
 100 0 0
EB Stone
 42 0 0
Western Railway Museum
 50 0 0
Birds Landing Hunting Preserve
 100 0 0
Rockwell Collins Inc. (fka Upco-Utas)
 510 1 1
Dixon Migrant Center
 346 1 1
Rush Ranch Open Space
 656 0 0
Superior Packing CO
 156 0 0
Valley Evangelical Free Church
 1,200 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
Stocking Ranch Deepwell
 53 0 0
Neil's Service Center
 170 0 0
Vaca-Dixon Substation
 40 0 0
Punjabi Dhaba
 155 0 0
Connection Point Church
Vacaville 		202 0 0
Self-Serve Petroleum
 1,210 0 0
Mariani Packing Company, Inc.
 320 0 0
Northbay Logistics Center Fka Savemart
 180 0 0
Midway RV Park
 48 0 0
Moose Lodge 1967
 159 0 0
Midway Foods
 100 0 0
Campbell Soup Dixon
 25 0 0
Caymus Cordelia Winery
Fairfield 		75 0 0
Gill Sidhu Chevron
 255 0 0
Pedrick Produce
 120 1 0
Dixon 76
 149 0 0
West Wind Winery
 103 0 0
Gotham Greens
Davis 		60 0 0
Hines Nursery Winters South
 100 0 0
Blue Victorian Winery
 100 0 0
Hines Nurseries Winters North
 150 2 1
Neil's Service Center II
 55 0 0
Lake Solano Park
 1,019 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, nearest to Rio Vista 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.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.