Tapcensus

Water quality in Keyes, California

Keyes is in Stanislaus County. 192 active public water systems serve the county; 68 had an EPA violation in the past three years.

Most likely your provider

Keyes Community Services Dist. CA5010009 · Community water system · Ground water
Serves 5,672 people Rules violated, past 3 years 0 Last sanitary survey Dec 9, 2025 Distance 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 Stanislaus County

60 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Ceres, City of
Ceres		 54,513 1 3.7 mi
Hughson, City of
Hughson		 7,977 2 3.9 mi
Country Villa Apts
 60 1 4.2 mi
City of Modesto North Turlock
Modesto		 172 0 4.3 mi
Cobles Corner
 50 1 4.4 mi
City of Modesto Walnut Manor
Modesto		 178 0 4.4 mi
Turlock, City of
Turlock		 72,888 0 4.8 mi
City of Modesto Central Turlock
Modesto		 119 0 5.2 mi
Riverview Mobile Home Estates
 540 2 5.9 mi
Monterey Park Tract Csd
 186 1 5.9 mi
City of Modesto South Turlock
Modesto		 1,109 0 6.5 mi
Sunrise Village MHP
 339 1 6.5 mi
Denair Community Services District
 5,093 0 6.6 mi
Country Western Mhrv
 55 1 6.7 mi
Mulberry MHP
 148 1 6.8 mi
Riverdale Park Tract Csd
 610 1 7.8 mi
Modesto, City of
Modesto		 218,915 0 8.0 mi
Modesto Irrigation District
 0 0 8.4 mi
Foster Farms #5
 26 0 8.7 mi
Waterford Hickman
Modesto		 597 0 9.8 mi
City of Waterford
Modesto		 8,788 0 10.0 mi
Olive Lane Mobilehome Park
 153 0 10.3 mi
Buehner Water System
 150 0 10.4 mi
Waterford-River Pointe
 1,079 0 10.5 mi
Morningside Mobilehome Park
 67 0 11.1 mi
All 61 community water systems in Stanislaus County
Non-community systems in Stanislaus County (131: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Keyes 76 (water System)
 25 0 0
Grace Community Christian Church
 70 0 0
Golden Arco
 28 0 0
Lander Veterinary Clinic
 27 0 0
Duarte Nursery INC Water System
 75 2 1
Resendiz Fruit Barn
 25 0 0
Bronco Winery
 400 0 0
River Oaks/kingdom Hall
 500 0 0
Sikh Temple Modesto-Ceres
 97 0 0
J & J Farm Fresh Produce & Bakery
 25 0 0
Lakewood Memorial Park & Funeral Home
 40 1 1
Country Store Water System
 25 0 0
Mid Valley Nut CO
Hughson 		60 3 2
Growers Direct Nut Company
 25 0 0
Joe's Food Mart Water System
 26 0 0
Hughson Nut Company Water System
 110 0 0
Log Cabin
 26 0 0
Chatom School (eh)
 385 1 1
Fox Grove Fishing Access
 26 0 0
California Nut Company
 30 1 1
Mountain View Chatom Recreation
 25 0 0
Taqueria Rancho Alegre
 26 0 0
Farmers' Den /market
 26 1 0
Oasis Market
 25 1 0
Full Gospel Assembly
 25 0 0
Chemurgic Agricultural Chemicals, Inc.
 42 2 2
Ceres Unified/westport School
 450 2 0
Mountain View Elementary School
 170 2 1
Purina Mills INC
 25 1 0
The Fruit Yard Restaurant
 43 1 1
Gratton School
 141 0 0
Our Lady of Assumption Church
 1,000 0 0
Tds California
 30 1 1
Village Food Mart Water System
 25 0 0
VFW Post 5059 Water System
 26 1 1
Fee Water System
 25 0 0
Modesto Christian Center (watersystem)
 25 0 0
Excell Center
 45 1 1
Gurudwara Guru Nanak Sahib
 109 0 0
Frazier Nut Farms, Inc.
 64 1 0
Darling Ingredients Turlock
 43 1 1
Ram Naam Mandali Church of Modesto
 250 0 0
Paradise School
 218 0 0
Jennings Wwtp
 30 1 1
Greenlaw Modesto Investors LLC
 142 0 0
At&t Water System
 80 1 1
Rolling Hills Nut Company
Modesto 		45 0 0
Bel Passi Baseball
 25 0 0
Golden Valley Almonds
 25 1 1
Salida Hulling Association Water System
 25 0 0
All non-community systems
About this data

Water systems are matched to Stanislaus County, nearest to Keyes 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. Retrieved from ECHO on Oct 11, 2026.