Water quality in Rio Oso, California
Rio Oso is in Sutter County. 35 active public water systems serve the county; 8 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sutter County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Golden State Water Co. Robbins |
207 | 0 | 10.8 mi | |
| City of Yuba City Yuba City |
70,256 | 0 | 13.6 mi | |
| Wildewood East Mutual |
350 | 0 | 14.5 mi | |
| Tierra Buena MHP #1 |
50 | 0 | 15.4 mi | |
| Yuba Apartment Homes |
40 | 1 | 15.6 mi | |
| Sutter Community S.d. |
2,904 | 0 | 18.8 mi | |
| City of Live Oak Live Oak |
9,687 | 0 | 23.4 mi |
Non-community systems in Sutter County (27: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Browns Elementary School |
160 | 0 | 0 | |
|
East Nicolaus Joint Union High School |
330 | 1 | 0 | |
|
Marcum Illinois Elementary School |
185 | 1 | 1 | |
|
National American Corp. Lp-Lake Minden |
1,065 | 0 | 0 | |
|
River Oaks Golf Club |
130 | 0 | 0 | |
|
Sierra Gold Nurseries |
100 | 0 | 0 | |
|
Pleasant Grove Elem. School |
177 | 0 | 0 | |
|
Oswald Water System |
25 | 1 | 0 | |
|
Legacy Baptist Church |
200 | 0 | 0 | |
|
Csp Labs & Micro Paradox |
95 | 0 | 0 | |
|
Sysco Food Services of Sacramento, Inc. |
300 | 1 | 0 | |
|
Sri Guru Nanak Sikh Temple |
100 | 0 | 0 | |
|
Verona Marina Launch & R.v. |
50 | 0 | 0 | |
|
Verona Village River Resort |
25 | 0 | 0 | |
|
Holt of California |
144 | 0 | 0 | |
|
Holt 7518 |
25 | 0 | 0 | |
|
Ranch House Restaurant & Bar |
25 | 0 | 0 | |
|
Dwr-Sutter Maintenance Yard |
38 | 0 | 0 | |
|
Church of Glad Tidings |
28 | 2 | 0 | |
|
Nuestro School |
120 | 0 | 0 | |
|
Pasquini's (micheli) WS |
150 | 0 | 0 | |
|
Encinal Elementary School |
128 | 0 | 0 | |
|
Live Oak Child Care Center |
105 | 0 | 0 | |
|
Meridian Elementary School |
100 | 0 | 0 | |
|
Coe Orchard Equipment |
90 | 1 | 0 | |
|
Lovey's Landing |
89 | 0 | 0 | |
|
East Nicolaus Mwc |
39 | 0 | 0 |
About this data
Water systems are matched to Sutter County, nearest to Rio Oso 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.
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.