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
Oro Valley Water Utility Oro Valley, AZ 42,316 2,191 Clean
Plainfield Township Grand Rapids, MI 42,271 12 Detected
Phenix City Utilities Phenix City, AL 42,267 235 Detected
Camp Pendleton (South) Camp Pendleton, CA 42,219 40 Detected
Prescott City Of Prescott, AZ 42,217 616 Detected
City of Rosenberg Rosenberg, TX 42,158 28 Detected
Newport-City Of Newport, RI 42,155 134 Detected
Billerica Water Works Billerica, MA 42,119 52 Detected
Burlington Dept Public Works Water Div Burlington, VT 42,000 13 Clean
Cranberry Twp WTP Cranberry Twp, PA 42,000 58 Clean
Greenlawn Water District Greenlawn, NY 42,000 87 Detected
Quincy Quincy, IL 42,000 78 Detected
Isu Ames, IA 42,000 49 Clean
South Norwalk Electric & Water Wilton, CT 42,000 215 Clean
City of Schertz Schertz, TX 41,948 16 Clean
Fitchburg Dpw Division of Water Supply Fitchburg, MA 41,946 51 Detected
Lagrange Lagrange, GA 41,852 5 Detected
Marlborough Dpw Water Div. (Mwra) Marlborough, MA 41,799 56 Clean
Wentzville PWS Wentzville, MO 41,784 30 Clean
Mt Laurel Twp Mua Miount Laurel, NJ 41,743 31 Detected
Sacramento International Airport [Sws] Sacramento, CA 41,717 2 Clean
Leominster Water Division Leominster, MA 41,683 345 Detected
Kearny Water Department Kearny, NJ 41,664 37 Detected
Chesterfield Township Chesterfield Township, MI 41,650 11 Clean
Dedham Westwood Water Dist. Dedham, MA 41,630 11 Detected
Marion Municipal Water Dept Marion, IA 41,623 36 Clean
Oak Ridge Dept of Public Works Oak Ridge, TN 41,614 26 Clean
City of Plant City Utility Plant City, FL 41,601 77 Clean
Indian Wells Valley W.D. Ridgecrest, CA 41,580 44 Clean
Bartlett Bartlett, IL 41,500 300 Clean
Indiana American Water - Richmond Greenwood, IN 41,485 9 Clean
Hopkinsville Water Environment Authority Hopkinsville, KY 41,350 201 Detected
City of San Bruno San Bruno, CA 41,327 2 Clean
Knox-Chapman Utility District Knoxville, TN 41,311 71 Clean
Carmichael Water District Carmichael, CA 41,193 4 Detected
South Coast Water District Laguna Beach, CA 41,118 4 Detected
Westfield Dpwwater Division Westfield, MA 41,094 152 Detected
Georgetown Township Jenison, MI 41,086 1 Clean
Bloomfield Township Bloomfield Township, MI 41,070 0 Clean
Epcor Water New Mexico Inc Clovis Clovis, NM 41,066 51 Detected
Alabaster Water Board Alabaster, AL 41,061 133 Detected
Middletown Water Department Middletown, CT 41,019 26 Clean
Town of Little Elm Little Elm, TX 41,000 6 Detected
Greene Co.-Northwest Reg Water Beavercreek, OH 41,000 61 Clean
Mount Prospect Mount Prospect, IL 41,000 49 Clean
California State University Fresno Fresno, CA 41,000 4 Detected
Hanover Muni Water Works Hanover, PA 40,900 251 Detected
Woburn Water Dept. Woburn, MA 40,876 46 Detected
Bay County Water System Panama City, FL 40,848 32 Clean
Saginaw Charter Township Saginaw, MI 40,840 4 Clean
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