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 |
| ECHO LAKE COMMUNITY ASSOCIATION | HINCKLEY, OH | 58 | 54 | — |
| MONTEZUMA BAY RESORT | CELINA, OH | 58 | 8 | — |
| PLEASANT PARK MOBILE COURT | WARREN, OH | 58 | 80 | — |
| KEVIN B COCHRAN DDS INC PWS | ORRVILLE, OH | 58 | 25 | — |
| OLD ANNIE OAKLEY | GREENVILLE, OH | 57 | 11 | — |
| METZENBAUM SCHOOL | CHESTERLAND, OH | 57 | 1 | — |
| WINDING CREEK ESTATES | NEWARK, OH | 57 | 31 | — |
| ST ALBANS GOLF CLUB PWS | ALEXANDRIA, OH | 57 | 11 | — |
| G'S PIZZA WORLD & ICE CREAM - DAMASCUS | DAMASCUS, OH | 57 | 3 | — |
| ROCKWATER CAMPGROUND PWS | FRANKLIN FURNACE, OH | 57 | 18 | — |
| LEFT FIELD | NEW RIEGEL, OH | 57 | 39 | — |
| SCOTT PROCESS SYSTEMS INC PLANT 1 PWS | HARTVILLE, OH | 57 | 8 | — |
| CHAMPION BAPTIST CHURCH PWS | CORTLAND, OH | 57 | 7 | — |
| OHIO OPERATING ENGINEERS-CYGNET | CYGNET, OH | 57 | 15 | — |
| ODNR-MOHICAN STATE FOREST/GROUP CAMP | COLUMBUS, OH | 56 | 0 | — |
| VFW POST 8586-ROBERT L FRANK | PERRYSVILLE, OH | 56 | 37 | — |
| CREATIVE LEARNING WORKS | SPRINGFIELD, OH | 56 | 15 | — |
| HARVEST INN - HOMEWORTH | HOMEWORTH, OH | 56 | 19 | — |
| GREENTREE WATER COMPANY | MORELAND HILLS, OH | 56 | 648 | — |
| OPALOCKA DRIVE OFFICE BUILDING, LLC. | CHESTERLAND, OH | 56 | 37 | — |
| PFEIFFER STATION GENERAL STORE | KENTON, OH | 56 | 0 | — |
| TRIPLE BEAN COFFEE COMPANY AND PIZZA PWS | NEWARK, OH | 56 | 20 | — |
| WELCOME WOODS-EAST WELL | COLUMBUS, OH | 56 | 137 | — |
| NEWPORT CCCU PWS | LONDON, OH | 56 | 7 | — |
| KOZY KAMP GROUND - BATHHOUSE | CELINA, OH | 56 | 16 | — |
| SIX ACRES ESTATES AMLC (DBA LEKING FARM) | BRADNER, OH | 56 | 9 | — |
| LAKE VIEW VILLAGE MHP | MINSTER, OH | 56 | 182 | — |
| BAYLOFF STAMPED PRODUCTS-KINSMAN | KINSMAN, OH | 56 | 36 | — |
| KATIES KORNER INC | GIRARD, OH | 56 | 29 | — |
| CEDAR OAKS WELLNESS CENTER | OREGONIA, OH | 56 | 917 | — |
| MWCD LEESVILLE S FORK L-1 | NEW PHILADELPHIA, OH | 55 | 49 | — |
| BIBLE BAPTIST MINISTRIES | WELLSVILLE, OH | 55 | 41 | — |
| RANCH OF OPPORTUNITY PWS | DAYTON, OH | 55 | 61 | — |
| JUNCTION AUTO SALES, INC | CHARDON, OH | 55 | 40 | — |
| STOCKERS BY ANNE | THOMPSON, OH | 55 | 25 | — |
| JUNCTION BUICK | CHARDON, OH | 55 | 107 | — |
| TRILLIUM FARM HOLDINGS-MT VICTORY | MT. VERNON, OH | 55 | 434 | — |
| LOST HOLLOW COMFORT STATION #14 | LOGAN, OH | 55 | 0 | — |
| CANAL DOVER FURNITURE | MILLERSBURG, OH | 55 | 47 | — |
| WIERS FARM AMLC #02 PWS | WILLARD, OH | 55 | 44 | — |
| DUTCH MAID LOGISTICS | WILLARD, OH | 55 | 0 | — |
| CHURCH OF CHRIST PWS | BELLEFONTAINE, OH | 55 | 48 | — |
| NK PARTS INDUSTRIES INC PWS | SIDNEY, OH | 55 | 106 | — |
| SPIRITUAL CENTER MARIA STEIN - MONTEZUMA | MARIA STEIN, OH | 55 | 12 | — |
| M & H MHP, LLC | BROOKLYN, OH | 55 | 372 | — |
| OLD COUNTRY INN | MANTUA, OH | 55 | 40 | — |
| MANSFIELD INN MOTEL | BARSTOW, OH | 55 | 10 | — |
| BASCOM COMMUNITY CHURCH | BASCOM, OH | 55 | 12 | — |
| SCHONER CHEVROLET SALES | HARTVILLE, OH | 55 | 21 | — |
| SPUDS CORNER PWS | MASSILLON, OH | 55 | 107 | — |