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
Johnson County Sud Joshua, TX 65,517 40 Detected
Rockwood PUD Portland, OR 65,443 73 Clean
Auburn Water Works Auburn, AL 65,313 256 Detected
Robeson County Water System Lumberton, NC 65,303 19 Detected
Watsonville, City Of Watsonville, CA 65,231 2 Detected
Joint Base Pearl Harbor-Hickam Jbpph, HI 65,230 34 Clean
Waltham Water Department Waltham, MA 65,218 35 Clean
Leesburg, Town Of Leesburg, VA 65,028 0 Clean
Paducah Water Works Paducah, KY 65,004 301 Detected
Limestone County Water and Sewer Auth. Athens, AL 65,003 139 Detected
Old North Utilities Services/Ft Bragg Fort Bragg, NC 65,000 40 Detected
Dennis Water District South Dennis, MA 65,000 44 Detected
Coral Springs, City Of Coral Springs, FL 65,000 43 Detected
Morgantown Utility Board Morgantown, WV 64,644 16 Clean
Soos Creek Water & Sewer District Renton, WA 64,534 1 Clean
Brentwood Brentwood, CA 64,513 41 Clean
Liberty Utilities (Av Ranchos) Corp. Downey, CA 64,469 2 Clean
Council Bluffs Water Works Council Bluffs, IA 64,447 24 Clean
Janesville Water Utility Janesville, WI 64,415 14 Clean
Harpeth Valley U.d. Nashville, TN 64,359 38 Clean
Park Moabi San Bernardino, CA 64,267 2 -
Cheyenne Board of Public Utilities Cheyenne, WY 64,165 12 Clean
Southwood Tacoma, WA 64,155 379 Detected
Lorain City PWS Lorain, OH 64,152 83 Clean
California Water Service-S San Francisco San Jose, CA 64,146 8 Clean
Conway Water System Conway, AR 64,008 5 Clean
Coon Rapids Coon Rapids, MN 64,000 23 Detected
Tamarac (West), City Of Tamarac, FL 63,793 80 Detected
Eden Prairie Eden Prairie, MN 63,726 8 Detected
Pontiac Waterford, MI 63,600 28 Detected
Ft Collins Loveland WD Fort Collins, CO 63,532 7 Clean
Gswc - Florence/Graham Anaheim, CA 63,500 2 Clean
City of Pflugerville Pflugerville, TX 63,464 348 Detected
Taylor Taylor, MI 63,409 38 Clean
West Allis Waterworks West Allis, WI 63,240 10 Clean
Haverhill Water Dept Haverhill, MA 63,235 80 Clean
Brookline Water and Sewer Division Brookline, MA 63,191 16 Clean
Porterville, City Of Porterville, CA 63,164 6 Detected
City of la Habra La Habra, CA 63,118 101 Clean
Lower Bucks Co Joint Mun Auth Levittown, PA 63,007 327 Clean
Oshkosh Waterworks Oshkosh, WI 63,000 20 Clean
City of Bayonne Kearny, NJ 63,000 69 Detected
Crofton-Odenton Millersville, MD 62,986 9 Clean
Altoona Water Authority Altoona, PA 62,500 790 Clean
Tigard, City Of Tigard, OR 62,500 14 Clean
City of Pittsburg Pittsburg, CA 62,500 5 Clean
Hamilton Public Water System Fairfield, OH 62,447 63 Detected
Southeast Morris County Mua Cedar Knolls, NJ 62,349 549 Detected
City of Margate Margate, FL 62,254 53 Detected
Fort George G. Meade Fort Meade, MD 62,234 64 Clean
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