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
Blue Island Blue Island, IL 21,494 23 Clean
Andover Andover, MN 21,455 23 Detected
Niceville, City Of Niceville, FL 21,451 19 Clean
Washougal City Of Washougal, WA 21,441 335 Detected
American Canyon, City Of American Canyon, CA 21,437 33 Clean
Vineyard City Saratoga Springs, UT 21,431 35 Clean
Siloam Springs Waterworks Siloam Springs, AR 21,430 28 Detected
Ecwa Lancaster Buffalo, NY 21,428 0 -
Wareham Fire District Parkwood Beach, MA 21,418 38 Clean
Auburn Hills Auburn Hills, MI 21,412 16 Detected
Port Hueneme City Water Dept Port Hueneme, CA 21,407 16 Clean
St. Lucie West Services District Port St Lucie, FL 21,400 49 Clean
Gwa Central Water System Mangilao, GU 21,398 106 Clean
East Moline East Moline, IL 21,374 95 Detected
Assumption Parish Ww District 1 Napoleonville, LA 21,366 208 Detected
South Milwaukee Waterworks South Milwaukee, WI 21,340 96 Clean
Maine Water Company Camden & Rockland Poland, ME 21,315 25 Clean
Thomson-McDuffie Co W&S Comm Thomson, GA 21,312 153 Detected
Helena, Utilities Board of the City Of Helena, AL 21,300 29 Detected
Leeds Water Works Board Leeds, AL 21,300 257 Clean
Gardner Water Department Gardner, MA 21,287 100 Clean
Grayslake Grayslake, IL 21,248 33 Clean
Geneva Geneva, IL 21,247 192 Clean
Lawrenceburg Utility Systems Lawrenceburg, TN 21,244 158 Clean
Milton, City of Water System Milton, FL 21,241 19 Detected
Cumberland, Town Of Cumberland, RI 21,235 157 Detected
Windermere Community Austin, TX 21,231 46 Detected
Blackman Township Jackson, MI 21,222 12 Clean
Consolidated Irrig Dist 19 System 2 Greenacres, WA 21,220 44 Clean
Windham Water Works Mansfield Center, CT 21,214 37 Detected
Queensbury Water District Queensbury, NY 21,200 30 Clean
Midway Water System, Inc. Gulf Breeze, FL 21,196 26 Detected
Hammond W/D (Sc0420007) Belton, SC 21,193 12 Detected
Pooler Pooler, GA 21,187 30 Detected
Culpeper, Town Of Culpeper, VA 21,184 106 Clean
Crest Hill Crest Hill, IL 21,169 190 Detected
Lockport City WTP Lockport, NY 21,165 0 Clean
Energy United Water Corp Hiddenite, NC 21,148 46 Clean
San Lorenzo Valley Water Dist Boulder Creek, CA 21,145 20 Detected
City of Hammond Water System Hammond, LA 21,135 56 Clean
Howard Waterworks Green Bay, WI 21,133 86 Clean
Jefferson County PWSD 1 Arnold, MO 21,113 2 Clean
Anacortes City Of Mount Vernon, WA 21,105 134 Clean
Lockport Town Wds Lockport, NY 21,105 0 Clean
Plainview Municipal Water System Plainview, TX 21,104 22 Detected
Dover Twp Water Sys Dover, PA 21,097 1,446 Detected
Ocoee Utility District Ocoee, TN 21,082 281 Detected
City of Alamo Alamo, TX 21,065 145 Detected
Willmar Willmar, MN 21,045 7 Clean
Hays, City Of Hays, KS 21,040 57 Detected
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