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.

System Name Location Population Violations PFAS
McClain Co RWD # 8 Wayne, OK 1,897 407 -
Lake Gibson Estates Longwood, FL 1,897 42 -
East Plantation Utility District Conroe, TX 1,896 24 -
Little Elm Valley WSC Cameron, TX 1,896 56 -
City of Frankston Downtown Plant Frankston, TX 1,896 15 -
Berlin Water Company Berlin, OH 1,896 168 -
City of Lumberton Lumberton, MS 1,896 308 -
Goodwill Water System Oak Grove, LA 1,896 64 -
North Liberty Water Works Walkerton, IN 1,896 134 -
Lynn Water Works Lynn, AL 1,896 31 -
West Union, Town Of West Union, WV 1,895 316 -
Johnson Water District Duchesne, UT 1,895 159 -
Lalamilo Hilo, HI 1,895 3 -
Straight River Rest Area South MNDOT St. Paul, MN 1,893 35 -
Sneads, Town of Water System Sneads, FL 1,893 31 -
Sistersville Municipal Water New Martinsville, WV 1,892 884 -
Watsons Gap Water System Marion, VA 1,892 20 -
Stockton PWS Stockton, MO 1,892 65 -
Flying J No 572 McClure, IA 1,892 87 -
Palm Beach Park of Commerce Jupiter, FL 1,892 143 -
Town of Wesson Wesson, MS 1,891 292 -
South Roxana South Roxana, IL 1,891 39 -
Anacortes - Fidalgo Mt Vernon, WA 1,890 4 -
Tuscola-Taylor County Wcid 1 Tuscola, TX 1,890 6 -
Frankston Rural WSC Frankston, TX 1,890 151 -
Venue @ 109 Lebanon, TN 1,890 2 -
PA Amer Water Co Montrose Wilkes Barre, PA 1,890 13 -
Okmulgee Co. RWD #1 Schulter, OK 1,890 503 -
Northville Crossing Southfield, MI 1,890 36 -
Weston Water System Jonesboro, LA 1,890 311 -
Black Mtn Utility/Rosspoint Baxter, KY 1,889 72 -
Trempealeau Waterworks Trempealeau, WI 1,888 281 -
Graysville Water Dept Graysville, TN 1,888 93 Clean
Wp&a - Lost Hills Water System Lost Hills, CA 1,888 19 -
Three Oaks WSC Floresville, TX 1,887 5 -
Ardmore Water System Ardmore, TN 1,886 32 -
Wyandotte Nation 06 1,886 2 -
City of McCamey McCamey, TX 1,885 59 -
Greenwood Co RWD 1 Eureka, KS 1,885 67 -
Girard Girard, IL 1,885 52 -
Aqua Illinois-Oak Run Kankakee, IL 1,885 26 -
Pahoa Hilo, HI 1,885 11 -
Lamar Waterworks Lamer, AR 1,885 52 -
Gilmer County Psd - Federal Prison Sand Fork, WV 1,884 138 -
Hammond Waterworks Hammond, WI 1,884 33 -
Selma / Low Moor / Valley Ridge Covington, VA 1,884 10 -
Sebastian MUD Sebastian, TX 1,884 106 Detected
Fort Bend County MUD 184 Houston, TX 1,884 4 -
Grayling, City Of Grayling, MI 1,884 18 -
Elkhart, City Of Elkhart, KS 1,884 25 -

Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).