Tapcensus

Water quality in Grayson, California

Grayson 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

City of Modesto Grayson CA5010033 · Community water system · Ground water · Modesto
Serves 917 people Rules violated, past 3 years 0 Last sanitary survey Sep 10, 2024 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 Stanislaus County

60 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Westley Csd
 70 1 1.6 mi
Hillsview Homes
 887 1 1.9 mi
Buehner Houses
 25 0 5.1 mi
Patterson, City of
Patterson		 24,977 0 6.3 mi
Country Western Mhrv
 55 1 8.2 mi
Riverdale Park Tract Csd
 610 1 8.5 mi
Monterey Park Tract Csd
 186 1 9.6 mi
Buehner Water System
 150 0 10.7 mi
Sunrise Village MHP
 339 1 11.0 mi
City of Modesto Salida
Modesto		 14,576 0 11.3 mi
Western Hills Water District/diablo Gran
 2,000 0 11.8 mi
Ceres, City of
Ceres		 54,513 1 12.5 mi
Modesto, City of
Modesto		 218,915 0 12.7 mi
City of Modesto Walnut Manor
Modesto		 178 0 12.8 mi
Modesto Irrigation District
 0 0 12.9 mi
Crows Landing Comm Svc District
 500 2 13.2 mi
Tully Mobile Estates
 56 0 14.0 mi
Oasis Investments
 75 1 14.3 mi
Keyes Community Services Dist.
 5,672 0 14.7 mi
Morningside Mobilehome Park
 67 0 15.2 mi
City of Modesto del Rio
Modesto		 1,346 0 15.4 mi
South San Joaquin Irrigation District
 0 0 15.6 mi
Del Rio East HOA Water System
 110 1 15.9 mi
Riverbank, City of
Riverbank		 25,625 0 17.1 mi
Park Heights Mutual Water CO
 250 0 17.1 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
Shiloh-Paradise Baseball for Youth
 26 1 0
Shiloh School District
 105 1 0
Joe's Travel Plaza (eh)
 26 0 0
Westley Property LLC
 25 0 0
Triangle Truck Stop (water)
 25 1 0
Gawfco Enterprises, Inc.
 26 0 0
Beckley Lyons Water System
 26 0 0
Fisher Nut
 25 0 0
Jennings Wwtp
 30 1 1
Smart Stop Food Mart (eh)
 26 0 0
Patterson Cemetery District
Patterson 		37 0 0
New Hope Church of the Nazarene
 70 0 0
Rbvon
 50 0 0
Department of Transportation
 1,000 0 0
Paradise School
 218 0 0
Salida Hulling Association Water System
 25 0 0
Ceres Unified/westport School
 450 2 0
Ratto Bros, INC
 110 0 0
Wood Colony Christian School
 90 1 1
Hart Ransom Union School & District
 650 0 0
Storer Transportation
 40 1 0
4937 Beckwith Water System
 26 0 0
Joe's Food Mart Water System
 26 0 0
Greenlaw Modesto Investors LLC
 142 0 0
At&t Water System
 80 1 1
Brethren Heritage School, INC
 55 2 2
Darling Ingredients Turlock
 43 1 1
Bronco Winery
 400 0 0
Mountain View Chatom Recreation
 25 0 0
Taqueria Rancho Alegre
 26 0 0
Mountain View Elementary School
 170 2 1
Farmers' Den /market
 26 1 0
Oasis Market
 25 1 0
Fink Road Landfill Stanislaus
 31 0 0
Fee Water System
 25 0 0
Gregori High School
 2,000 0 0
Turlock Sportsman's Club
 32 0 0
Grover Landscape Water System
 125 2 1
Log Cabin
 26 0 0
Stanislaus Union School Dist
 390 1 1
Libitzky
 120 1 1
Grace Community Christian Church
 70 0 0
Liberty Baptist Church
 45 1 0
Stratos Way Water Company, INC
 135 0 0
5033 Pentecost
 302 0 0
Zansco
Modesto 		25 0 0
Sterling Industrial
 35 1 1
Pentecost Properties Water System
 25 0 0
Kiernan Business Center
 120 0 0
Elks Lodge 1282
 25 0 0
All non-community systems
About this data

Water systems are matched to Stanislaus County, nearest to Grayson 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.