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
Port Angeles Composite Carlsborg, WA 9,879 39 Detected
Sleepy Hollow (Village) Sleepy Hollow, NY 9,870 86 Clean
Hornell City Hornell, NY 9,870 100 Clean
Blackstone Water Department Blackstone, MA 9,868 139 Detected
City of Willis Willis, TX 9,867 49 Clean
Clay Township Algonac, MI 9,866 14 Clean
Cambridge Cambridge, MN 9,862 10 Clean
Ccwd - Jenny Lind San Andreas, CA 9,861 11 Clean
City of Biloxi-North Biloxi, MS 9,858 513 Clean
Golden Hills Csd Tehachapi, CA 9,857 13 Detected
Callaway County PWSD 1 Holts Summit, MO 9,840 6 Clean
Stansbury Park Improvement District Stansbury Park, UT 9,839 129 Clean
City of Jennings Water System Jennings, LA 9,837 31 Clean
Burlington City Water DE Burlington, NJ 9,835 349 Detected
Winfield Winfield, IL 9,835 43 Clean
Whitley Co Water District Williamsburg, KY 9,825 53 Detected
Fairfield Water Supply Fairfield, IA 9,821 53 Clean
Mahaska Rural Water System, Inc. Oskaloosa, IA 9,818 27 Clean
Harris County Wcid 110 Houston, TX 9,807 7 Detected
City of Cuero Cuero, TX 9,807 13 Clean
Todd County Water District Elkton, KY 9,801 119 Detected
Vernon Water and Sewer Board Vernon, AL 9,801 26 Detected
Springfield Water Dept Springfield, VT 9,800 13 Detected
City of Josephine Josephine, TX 9,800 25 Detected
Waterford Water Works (Purchase Troy) Waterford, NY 9,800 114 Detected
Lenox Dpw Water Division Lenox, MA 9,800 17 Clean
Milford Water Department Milford, DE 9,800 6 Clean
Blythe - City Of Blythe, CA 9,798 23 Clean
Luxor Resort and Casino Las Vegas, NV 9,796 3 -
Magees Creek W/A-North Tylertown, MS 9,792 625 Clean
Winslow City Of Winslow, AZ 9,789 256 Clean
Little Creek Amphibious Base - U.S. Navy Virginia Beach, VA 9,782 49 Clean
Dunlap Water System Dunlap, TN 9,782 58 Clean
Jeff Davis Water and Sewer Commission 1 Lake Arthur, LA 9,780 31 Clean
City of Holly Springs Hollky Springs, MS 9,779 253 Detected
North Mercer Water District Salvisa, KY 9,775 61 Detected
Paw Crystal Lake Scranton, PA 9,773 3 Detected
Fair Oaks Ranch Utilities Fair Oaks Ranch, TX 9,768 12 Clean
Jefferson City W&S Comm Jefferson City, TN 9,764 69 Detected
Eielson - Air Force Base Eielson Afb, AK 9,760 359 Detected
Grosse Pointe Farms Grosse Pointe Farms, MI 9,757 19 Clean
Nassau-Amelia Utilities Longwood, FL 9,750 29 Clean
Winton Water & Sanitary Dist Winton, CA 9,745 15 Clean
Ecwa Hamburg (V) Buffalo, NY 9,744 0 -
Childersburg Water & Sewer Board Childersburg, AL 9,744 91 Detected
Montevallo Water Works & Sewer Montevallo, AL 9,741 61 Detected
Ponce de Leon Mayaguez, PR 9,740 114 -
Essex Town Water System Essex Junction, VT 9,734 2 Clean
City of Raton/Raton Water Works Raton, NM 9,733 71 Clean
Parish Utilities of Ascension Donaldsonville, LA 9,732 231 Detected
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