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
Swansea Water District Swansea, MA 17,375 24 Detected
Amesbury Dpw Water Div. Amesbury, MA 17,366 38 Clean
Easton Utilities Easton, MD 17,357 8 Clean
Glen Hills Utility District Greeneville, TN 17,355 9 Clean
Meadville Area Water Authority Meadville, PA 17,339 97 Clean
Ammon City Of Ammon, ID 17,338 418 Clean
Penuelas Penuelas, PR 17,320 375 Clean
Sandy Springs Water Co Inc (Sc0420003) Sandy Springs, SC 17,311 9 Detected
Huntington Water Department Huntington, IN 17,300 138 Clean
East Milton Water System Milton, FL 17,292 15 Clean
Charleston Charleston, IL 17,286 35 Detected
Coalinga-City Coalinga, CA 17,277 77 Clean
Medford Twp Dept of Muni Medford, NJ 17,272 632 Detected
Belforest Water System Daphne, AL 17,268 133 Detected
Wapello Rural Water Assoc. Ottumwa, IA 17,263 26 Detected
City of Crescent City Crescent City, CA 17,262 3 Clean
Town of Addison Addison, TX 17,257 18 Detected
Kerman, City Of Kerman, CA 17,256 26 Clean
Christian Co Water District Hopkinsville, KY 17,248 47 Clean
Auburn Water District Lisbon, ME 17,245 44 Clean
Erie Co Perkins District Huron, OH 17,241 35 Clean
Derry Water Dept Derry, NH 17,210 12 Detected
Camden Pump District Dover, DE 17,208 7 Clean
PA Amer Water Co Ellwood Cty New Castle, PA 17,200 21 Detected
Poulsbo City Of Poulsbo, WA 17,180 418 Clean
Franklin Public Water System Franklin, OH 17,175 171 Detected
Frederick Town Of Frederick, CO 17,173 43 Clean
Bellagio Resort and Casino Las Vegas, NV 17,171 6 Clean
Centerville City Water System Clinton, UT 17,155 60 Detected
Nevada ID - E. George, Banner Mountain Grass Valley, CA 17,154 0 Clean
Marine Corps Air Station Cherry Point Cherry Point, NC 17,144 24 Clean
City of Show Low Show Low, AZ 17,139 825 Clean
Bucksport Water Company (Sc2620003) Conway, SC 17,123 57 Clean
Pioneer Rural Water Dist (Sc3720001) Westminster, SC 17,121 17 Clean
Marco Rural Water Co (Sc3320001) Marion, SC 17,120 25 Clean
New Castle/Stanwood W.D. Chappaqua, NY 17,116 105 Clean
Morton Morton, IL 17,111 56 Clean
Eastern Washington University Cheney, WA 17,108 39 Clean
Hannibal PWS Hannibal, MO 17,108 178 Detected
V.a.w. Water System, Inc Vinemont, AL 17,103 7 Detected
Portsmouth Water & Fire District Portsmouth, RI 17,090 76 Clean
Harris County MUD 71 Houston, TX 17,079 11 Clean
Norwalk City PWS Norwalk, OH 17,068 45 Detected
Dona Ana Mdwca Dona Ana, NM 17,067 209 Detected
Moultrie Moultrie, GA 17,067 94 Clean
Raytown Water Company Raytown, MO 17,066 29 Clean
Lake Mary, City Of Lake Mary, FL 17,066 72 Detected
Mhog Sewer & Water Authority Brighton, MI 17,046 4 Clean
Poplar Bluff PWS Poplar Bluff, MO 17,043 192 Clean
Sunnyside City Of Sunnyside, WA 17,037 45 Clean
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