Tapcensus

Water quality in Sonoma State University, California

Sonoma State University is in Sonoma County. 445 active public water systems serve the county; 76 had an EPA violation in the past three years.

Most likely your provider

Sonoma State University CA4910027 · Community water system · Ground water
Serves 1,500 people Rules violated, past 3 years 0 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 Sonoma County

128 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Canon Manor Water System
 828 0 0.7 mi
Rohnert Park, City of
Rohnert Park		 43,821 0 1.4 mi
Penngrove Water Company (puc)
 1,742 0 2.1 mi
Sonoma Mountain County Water District
 185 0 2.5 mi
College Park Mutual Water Company
 244 1 2.7 mi
Cotati, City of
Cotati		 7,290 0 2.8 mi
Summit View Ranch Mutual Water Co.
 45 0 2.9 mi
Madrone Mutual Water Company
 76 0 3.1 mi
Lichau Hylands Mutual Water Company
 56 0 3.4 mi
Terrace View Water System
 60 0 3.7 mi
Santa Rosa Mobile Estates
 420 0 4.1 mi
Happy Acres Mutual Benefit Water System
 260 0 4.2 mi
Delores Lane Water System
 54 0 4.2 mi
Plaza Mobile Home Park
 169 1 4.3 mi
Western Mobile Home Park
 178 1 4.5 mi
North Star Mobile Home Park
 221 0 4.5 mi
EL Portal Mobile Estates
 344 1 4.8 mi
Robin Way Water System
 66 0 4.9 mi
Sunset Park Community
 157 1 5.0 mi
Yulupa Mutual Water Company
 200 0 5.1 mi
Mountain View Mobile Estates, LLC
 250 0 5.1 mi
Wendell Lane Mutual Water Company
 82 0 5.2 mi
Boulevard Heights Mutual Water
 60 0 5.4 mi
Branger Mutual Water Company, Inc.
 300 1 5.5 mi
Bennett Ridge Mutual Water Company
 439 0 5.5 mi
All 129 community water systems in Sonoma County
Non-community systems in Sonoma County (316: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Stripe N Seal
 26 0 0
Karah Estate Winery
 27 1 1
Jehovah's Witnesses Hall
 650 0 0
Friedman Brothers Hardware
 95 0 0
7180 Hwy 116 LLC
 57 1 0
Truck Tops USA
Santa Rosa 		40 0 0
United Rentals
 35 0 0
Washoe House
 75 0 0
Santa Rosa Liquor and Deli
 95 0 0
Sonoma State U.-Fairfield Osborn Pres
 151 0 0
Liberty School
 225 0 0
KOA Petaluma
 713 0 0
Dunham School
 175 1 1
Matanzas Creek Winery
 139 0 0
LA Hacienda del Toro
 58 0 0
Michael Ellis School for Dog Trainers
 31 0 0
Sonoma County Pub Works-Central Landfill
 34 1 1
Bellevue Union Sch Dist-Bellevue School
 380 0 0
Saints Peter & Paul Russian Church
 25 0 0
Sonoma Mountain Zen Center
 33 0 0
Willowbrook Ale House
 50 0 0
Westside Storage Water System
 77 0 0
Petaluma Livestock Auction Yard
 100 0 0
Lombardi's Deli & Bbq
 300 0 0
Jan Klebe
 101 0 0
Cinnabar Elementary School
 228 0 0
Hessel Church
 116 0 0
Csp-Jack London State Historic Park
 130 0 0
Seneca Family of Agencies
 30 1 1
Gravenstein School District-Gravenstein
 398 1 1
Adobe Christian Church
 50 0 0
Gravenstein Business Park
 50 0 0
Fritsch Industrial Park
 36 0 0
Benziger Family Winery
 25 0 0
Sonoma Wine Shop
 25 0 0
Michael Lucas Water System
 25 0 0
Midgley's Country Flea Market
 100 0 0
Gravenstein School District-Hillcrest
 289 1 1
Csp-Petaluma Adobe State Historic Park
 134 0 0
Jjapt Bloomfield
 37 0 0
LA Cantera Racquet Club
 75 1 0
Sonoma West Holdings Industrial Park
 25 0 0
Sequoia Water Company
 100 0 0
Sugarloaf Water System
 42 0 0
Deerfield Ranch Winery LLC
 35 0 0
Salt & Stone Restaurant
 80 0 0
Humane Society of Sonoma County
 27 0 0
Ledson Winery and Vineyards
 128 0 0
Valley of the Moon Plaza Shopping Center
 100 0 0
Saint Anne's Crossing Winery
 55 0 0
All non-community systems
About this data

Water systems are matched to Sonoma County, nearest to Sonoma State University 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.