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
NE Morgan Co Water and Sewer Authority Somerville, AL 25,854 26 Detected
Athens Utilities Board Athens, TN 25,851 43 Detected
Epcor - Sun City West El Mirage, AZ 25,796 110 Clean
Sandusky City Sandusky, OH 25,793 44 Clean
Wagoner Co. RWD #4 Broken Arrow, OK 25,792 417 Detected
Dracut Water Supply District Dracut, MA 25,789 114 Detected
Casino Arizona Talking Stick (CATS) Scottsdale, 09 25,785 85 Clean
Staunton, City Of Staunton, VA 25,750 43 Clean
City of Denham Springs Water System Denham Springs, LA 25,725 26 Clean
Anderson County Water Auth Clinton, TN 25,700 232 Detected
St. John Municipal Water Utility St. John, IN 25,700 100 Clean
Chesterfield Co Rural Water (Sc1320003) Chesterfield, SC 25,691 34 Clean
Dickinson City Of Dickinson, ND 25,679 27 Clean
New Windsor Consolidated WD New Windsor, NY 25,667 90 Detected
DE Pere Waterworks Sa 1 DE Pere, WI 25,660 296 Clean
Little Thompson WD Berthoud, CO 25,654 7 Detected
Salem, City Of Salem, VA 25,643 17 Clean
White Bear Lake White Bear Lake, MN 25,634 22 Detected
Woodstock Woodstock, IL 25,630 35 Clean
Hill Air Force Base Elwood, UT 25,625 208 Clean
Wvawc New River Regional Wtr Trtmt Plt Charleston, WV 25,603 5 Clean
Meridian Township Okemos, MI 25,600 9 Clean
Lenoir, City Of Lenoir, NC 25,573 23 Clean
Marysville City PWS Marysville, OH 25,571 110 Clean
Windsor, Town Of Windsor, CA 25,561 6 Clean
Hilton Head Psd 1 (0720006) Hilton Head Island, SC 25,558 14 Detected
Hurricane City Hurricane, UT 25,555 371 Clean
Little Sumter Utilities 3Wps The Villages, FL 25,538 4 Detected
Lamar County Water Supply District Paris, TX 25,530 69 Clean
Ottumwa Water Works Ottumwa, IA 25,529 79 Clean
Muscatine Power & Water Muscatine, IA 25,516 12 Detected
Merrimack Village Dist Merrimack, NH 25,500 170 Clean
Cassatt Wtr Kershaw-Lee Co Rwa Cassatt, SC 25,485 19 Clean
City of Belton Belton, TX 25,466 19 Detected
Derby, City Of Derby, KS 25,413 75 Clean
City of Kingsville Kingsville, TX 25,402 47 Detected
Washington Co RWD #3 (New,#1) Collinsville, OK 25,375 37 Clean
Summit Township Jackson, MI 25,355 4 Clean
City of South Pasadena South Pasadena, CA 25,329 10 Clean
City of Richmond Richmond, TX 25,326 29 Detected
Shady Grove Utility District Dandridge, TN 25,320 17 Detected
Morton Grove Morton Grove, IL 25,297 23 Clean
Long Beach Twp Brant Bea Brant Beach, NJ 25,295 562 Clean
Prior Lake Prior Lake, MN 25,282 4 Clean
City of University Park Dallas, TX 25,278 0 Detected
City of Katy Katy, TX 25,253 6 Clean
Sunny Slope Water Co. Pasadena, CA 25,252 1 Clean
Sabana Grande Utuado, PR 25,229 647 Detected
Columbia Water Co Columbia, PA 25,200 199 Clean
Carrollton Carrollton, GA 25,200 38 Clean
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