PlainWater

Public Water Systems

143,076 active public water systems, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.

Population Violations Health Violations Name
System Name Location Population Violations PFAS
Reading City PWS Reading, OH 9,506 54 Detected
Itasca Itasca, IL 9,506 36 Detected
Harris County MUD 109 Houston, TX 9,501 9 Clean
Estill Co Water District Irvine,, KY 9,501 59 Clean
Essex Jct Water Dept Essex Junction, VT 9,500 2 Clean
City of la Grulla La Grulla, TX 9,500 222 Clean
Greenville Water District Greenville, RI 9,500 48 Clean
Myerstown Water Auth Myerstown, PA 9,500 234 Clean
Bellefonte Borough Water Auth Bellefonte, PA 9,500 1,031 Clean
Aqua Shenandoah Shamokin, PA 9,500 113 Detected
Milford Water Utilities Dept Milford, NH 9,500 148 Clean
Saint Anthony Village Minneapolis, MN 9,500 0 Detected
Chesapeake Ranch Estates Lusby, MD 9,500 11 Clean
Hard Rock Fire Mountain Water System Oroville, 09 9,500 4 Clean
Umpqua Basin Water Assoc Roseburg, OR 9,499 80 Clean
Cumberland Falls Highway Water District Corbin, KY 9,498 49 Detected
Wilton Water & Sewer Authority Gansevoort, NY 9,490 691 Clean
Airway Heights City Of Airway, WA 9,489 194 Detected
Rifle City Of Rifle, CO 9,489 195 Clean
Hernando Co Utl-East Brooksville, FL 9,483 31 Detected
Mire Branch Water Corporation Church Point, LA 9,480 31 Clean
Parsons, City Of Parsons, KS 9,479 136 Clean
Bellbrook Water Works Bellbrook, OH 9,475 37 Detected
Pulaski, Town Of Pulaski, VA 9,473 66 Clean
Trail of the Lakes MUD Houston, TX 9,471 73 Clean
Harvard Harvard, IL 9,469 79 Clean
City of Indianola Indianola, MS 9,464 720 Clean
Windber Area Auth Windber, PA 9,463 141 Clean
Smithfield Water Supply Board Smithfield, RI 9,460 114 Clean
Grassy Pond Water Co Inc (Sc1120002) Gaffney, SC 9,458 8 Detected
Fredonia Village Fredonia, NY 9,455 269 Clean
Harris County MUD 188 Houston, TX 9,453 2 Detected
Shelby City Shelby, OH 9,453 189 Detected
Pulaski County Psa Pulaski, VA 9,452 47 Clean
Coweta PWA Coweta, OK 9,450 1,028 Detected
Sitka Sitka, AK 9,448 226 Clean
Mound Mound, MN 9,447 33 Clean
Rochelle Rochelle, IL 9,446 87 Clean
Myoma Dunes Mutual Water Company Bermuda Dunes, CA 9,445 1 Clean
El Paso County Wcid 4 Fabens Fabens, TX 9,444 17 Clean
City of Lamesa Lamesa, TX 9,442 51 Clean
Isleta Eastside Isleta, 06 9,442 19 Clean
Consolidated Irrig Dist 19 System 1 Greenacres, WA 9,434 22 Clean
Georgetown Divide PUD Georgetown, CA 9,434 4 Clean
Glenwood Springs City Of Glenwood Springs, CO 9,428 78 Clean
Chelan Water Dept City Of Chelan, WA 9,425 105 Clean
El Jardin WSC Brownsville, TX 9,423 41 Detected
Flamingo las Vegas Hotel and Casino Las Vegas, NV 9,421 33 Clean
Morehead City, Town Of Morehead City, NC 9,420 119 Clean
Fort Polk North Water System Fort Johnson, LA 9,420 25 Clean
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