All water systems in Ohio
262 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sharon Woods Metro Park Westerville · Franklin County |
1,950 | 0 | 0 | |
|
Franklin Co,ridgewood Estates Franklin County |
1,925 | 0 | 0 | |
|
Tipp City-Woodlawn Village Miami County |
1,500 | 0 | 0 | |
|
Odnr-Hueston Woods/north Plant Preble County |
1,300 | 0 | 0 | |
|
Greene Co.woodside Park San D. Greene County |
1,200 | 0 | 0 | |
|
Mwcd-Atwood Resort Carroll County |
1,170 | 1 | 1 | |
|
Odnr-Hueston Woods North PWS Preble County |
1,015 | 1 | 1 | |
|
Odnr-Hueston Woods South PWS Preble County |
1,014 | 1 | 1 | |
|
Sharon Woods Metro Park Westerville · Franklin County |
975 | 0 | 0 | |
|
Dogwood Valley Campground Morrow County |
880 | 0 | 0 | |
|
Fairview Middle/high School Sherwood · Defiance County |
785 | 0 | 0 | |
|
Lakewood JR High School Hebron · Licking County |
720 | 0 | 0 | |
|
Greenwood Elementary Sch Uniontown · Summit County |
710 | 0 | 0 | |
|
Lakewood Swim-Athletc CL Urbana · Champaign County |
700 | 0 | 0 | |
|
Elmwood Elementary School Allen County |
673 | 0 | 0 | |
|
Diamond International Corp Norwood · Hamilton County |
660 | 0 | 0 | |
|
Brentwood Public Water System Summit County |
651 | 0 | 0 | |
|
Woodland Heights Elementary School Darke County |
649 | 1 | 1 | |
|
Maplewood Elementary School Allen County |
634 | 0 | 0 | |
|
Atwood Beach Concession Carroll County |
600 | 0 | 0 | |
|
Mgr,woody's Water Service Co. Warren County |
600 | 0 | 0 | |
|
Woodridge Elementary School Summit County |
568 | 0 | 0 | |
|
Glenwood Elementary Scl. Perrysburg · Wood County |
563 | 0 | 0 | |
|
Lakewood High School Hebron · Licking County |
507 | 0 | 0 | |
|
Principal,northwood Elem Sch Stark County |
505 | 0 | 0 | |
|
Brantwood Elementary School Montgomery County |
500 | 0 | 0 | |
|
Clark County Maplewood PWS Clark County |
500 | 0 | 0 | |
|
Dogwood Valley Campground #2 Morrow County |
500 | 0 | 0 | |
|
Dogwood Valley Campground #3 Morrow County |
500 | 0 | 0 | |
|
Dogwood Valley Campground #4 Morrow County |
500 | 0 | 0 | |
|
Lake of the Wood Water CO Delaware County |
475 | 0 | 0 | |
|
Mgr,wildwood Camp Well 2 Muskingum County |
450 | 0 | 0 | |
|
Woodlake MHP Millbury · Wood County |
450 | 1 | 1 | |
|
Mel-O-Creme Northwood · Wood County |
400 | 0 | 0 | |
|
Wood Valley Estates MHP Marion County |
400 | 0 | 0 | |
|
Woodhaven, Inc. Montgomery County |
400 | 0 | 0 | |
|
Elmwood High School Bloomdale · Wood County |
382 | 0 | 0 | |
|
Woodridge High School Peninsula · Summit County |
377 | 0 | 0 | |
|
Maplewood Park Summit County |
375 | 1 | 1 | |
|
Sandelwood Water Company Portage County |
370 | 1 | 1 | |
|
Woodlake Mobile Home Park Wood County |
350 | 0 | 0 | |
|
Maplewood Elementary School Trumbull County |
318 | 0 | 0 | |
|
Kingswood Inn Restaurant Franklin County |
300 | 0 | 0 | |
|
Tcmsd-Ridgewood PWS Tuscarawas County |
256 | 0 | 0 | |
|
Manager,leatherwood Drive-In Belmont County |
250 | 0 | 0 | |
|
Martin Marietta N 10 Woodville · Sandusky County |
250 | 0 | 0 | |
|
Wildwood Lake North Lima · Mahoning County |
240 | 0 | 0 | |
|
Chris' Supper Club Northwood · Wood County |
223 | 0 | 0 | |
|
Mgr,winegardner's Woodland Est Williams County |
210 | 0 | 0 | |
|
Blendon Woods Metro Park Franklin County |
200 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Ohio records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.