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
Muhlenberg Twp Muni Auth Reading, PA 21,000 597 Detected
Salem Water Dept Salem, NH 21,000 33 Detected
Laconia Water Works Lakeport, NH 21,000 0 Clean
Charter Township of Grand Blanc Grand Blanc, MI 21,000 22 Clean
Burton, City Of Burton, MI 21,000 59 Clean
Monticello Water & Sewer Commission Monticello, KY 21,000 68 Clean
Gallia Co Rural Water Association Gallipolis, OH 20,995 22 Detected
East Hempfield Water Auth Landisville, PA 20,988 63 Detected
Louisville City Of Louisville, CO 20,975 149 Clean
Ridgefield Public Works Ridgefield, WA 20,967 1,376 Clean
New Hope New Hope, MN 20,963 6 Detected
Salt River Public Works Scottsdale, 09 20,951 197 Clean
Milwaukie, City Of Milwaukie, OR 20,946 265 Detected
Ashland Water Department Ashland, OR 20,946 38 Clean
Benton City WSC Lytle, TX 20,940 102 Clean
Jbsa - Lackland Jbsa Lackland, TX 20,907 139 Clean
Ellensburg Water Dept Ellensburg, WA 20,900 13 Clean
Gallup Water System Gallup, NM 20,880 107 Clean
Arcata, City Of Arcata, CA 20,875 2 Clean
First U.d. of Hawkins County Church Hill, TN 20,851 64 Detected
Calcasieu Parish Ww District No 1 Lake Charles, LA 20,837 30 Clean
Lincoln City, City Of Lincoln City, OR 20,830 76 Clean
Hooper Water Improvement District Plain City, UT 20,820 71 Clean
Rolla PWS Rolla, MO 20,800 7 Clean
Northwest Utility District Soddy Daisy, TN 20,794 44 Clean
Sirwa #2 (Creston) Creston, IA 20,793 49 Clean
Northfield Northfield, MN 20,790 10 Detected
Paw Philipsburg Philipsburg, PA 20,784 0 Clean
Acton Water Supply District Acton, MA 20,780 174 Detected
Ss WSC Lavernia, TX 20,766 3 Clean
Crystal Clear Sud San Marcos, TX 20,766 401 Detected
Web Water Development Association Aberdeen, SD 20,750 8 Clean
Cabo Rojo Cabo Rojo, PR 20,749 452 Clean
Pittsburg, City Of Pittsburg, KS 20,738 10 Clean
Sardis Lone Elm WSC Midlothian, TX 20,736 17 Detected
Indiana American Water - Seymour Greenwood, IN 20,725 12 Clean
Cal/Am Water Company - Baldwin Hills Rosemead, CA 20,724 4 Clean
Lebanon City Lebanon, OH 20,700 51 Detected
Amsterdam (C) Amsterdam, NY 20,700 160 Clean
Moorestown Water Dept Moorestown, NJ 20,700 282 Detected
South Saint Paul South St. Paul, MN 20,664 50 Detected
Selmer Water System Selmer, TN 20,648 41 Clean
Ashland City Ashland, OH 20,648 26 Clean
Marquette Marquette, MI 20,629 80 Clean
Morovis Urbano Morovis, PR 20,628 478 Detected
City of Taylor Taylor, TX 20,622 43 Detected
Sidney City PWS Sidney, OH 20,614 141 Clean
Mineola (V) Mineola, NY 20,600 82 Detected
Safford City Of Safford, AZ 20,600 472 Detected
Wvawc Bluestone Plant Charleston, WV 20,562 4 Clean
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