PlainWater

Public Water Systems

4,181 active public water systems in OH, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.

System Name Location Population Violations PFAS
Tri-County Rural W and S District Waterford, OH 3,000 73 -
Baltimore Village PWS Baltimore, OH 2,995 52 -
Old Straitsville Water Association Logan, OH 2,950 140 -
Lakengren Water Authority Eaton, OH 2,950 29 -
Lodi Village PWS Lodi, OH 2,884 8 -
Trumbull Co. - Mineral Ridge PWS Vienna, OH 2,858 5 -
Bridgeport Public Water System Bridgeport, OH 2,830 202 -
Lisbon Village Warren, OH 2,821 301 -
South Zanesville PWS Zanesville, OH 2,800 444 -
Grafton Village PWS Grafton, OH 2,769 526 -
Middlefield Village PWS Middlefield, OH 2,748 65 -
Buckeye Lake, Village of PWS Buckeye Lake, OH 2,746 14 -
Putnam Community Water Association PWS Marietta, OH 2,744 78 Detected
Covington Village PWS Covington, OH 2,718 34 -
New Richmond Village PWS New Richmond, OH 2,698 42 -
Versailles Village PWS Versailles, OH 2,687 76 -
Clear Water Corporation Sarahsville, OH 2,670 130 -
Fredericktown Village Fredericktown, OH 2,648 21 -
Loudonville Village Loudonville, OH 2,641 15 -
Newpointe Community Church PWS Dover, OH 2,640 0 -
Strasburg Village PWS Strasburg, OH 2,610 80 -
Woodsfield Village PWS Woodsfield, OH 2,598 137 -
St Henry Village St Henry, OH 2,596 85 -
Odnr-Hocking Hills State Park Columbus, OH 2,559 154 -
Crooksville Crooksville, OH 2,534 213 -
Silver Lake Village PWS Silver Lake, OH 2,519 12 -
Gibsonburg Village Gibsonburg, OH 2,506 5 -
Gambier Village PWS Gambier, OH 2,502 50 -
Aqua Ohio - Worthington Hills PWS Westerville, OH 2,500 0 -
Glendale Village PWS Glendale, OH 2,500 32 -
Switzerland of Ohio Water Jerusalem, OH 2,500 10 -
Mission Conversion Services Alliance LLC Piketon, OH 2,500 102 -
Sabina Village PWS Sabina, OH 2,493 205 -
New Concord PWS New Concord, OH 2,491 213 -
Williamsburg Village PWS Williamsburg, OH 2,490 104 -
Travel Centers of America Westlake, OH 2,490 183 -
Middleport Village PWS Middleport, OH 2,446 96 -
Waynoka Regional Water and Sewer Dist Sardinia, OH 2,428 72 Clean
Enon Village PWS Enon, OH 2,415 135 -
Cridersville Village Criderville, OH 2,410 152 -
Wright Patterson Medical Center PWS Wpafb, OH 2,401 8 -
Mwcd-Atwood Park New Philidelphia, OH 2,400 157 -
Lagrange Village PWS Lagrange, OH 2,400 35 -
McArthur Village PWS McArthur, OH 2,400 15 -
Odnr - Pymatuning State Park Columbus, OH 2,381 91 -
Aqua Ohio - Mohawk PWS Massillon, OH 2,376 34 -
Tri-County Water Authority Harrisville, OH 2,370 17 -
Hebron Village PWS Hebron, OH 2,368 59 -
Noble County Water Authority PWS Belle Valley, OH 2,368 130 -
Miami Co-N25a Extension Troy, OH 2,367 11 -
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