Ohio
Washington County drinking water quality
18 active public water systems serve 61,007 people in Washington County. 1 are compliant, 17 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 0 carry a health flag.
Needs attention
Community water systems
15 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Marietta City PWS |
18,707 | 2 | 1 | |
|
Little Hocking Water Association, Inc. |
9,892 | 0 | 0 | |
|
Warren Comm W and S Assn 2 |
7,215 | 1 | 1 | |
|
Belpre City PWS |
6,441 | 2 | 1 | |
|
Highland Ridge W and S Association INC |
3,022 | 1 | 1 | |
|
Tri-County Rural W and S District |
3,000 | 1 | 0 | |
|
Putnam Community Water Association PWS |
2,744 | 2 | 1 | |
|
Reno Water and Sewer 1 |
2,189 | 2 | 1 | |
|
Beverly Village PWS |
1,900 | 3 | 2 | |
|
Newport Water/sewer District PWS |
1,582 | 4 | 2 | |
|
Reno Water and Sewer 2 |
1,520 | 2 | 1 | |
|
Matamoras Village |
896 | 1 | 1 | |
|
Waterford Water/sewer Association |
770 | 2 | 1 | |
|
Lowell Village PWS |
603 | 1 | 1 | |
|
Reno Water and Sewer Kardex |
446 | 2 | 1 |
Non-community systems (3: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wilkys on the Water |
30 | 2 | 1 | |
|
Ashland RV Park |
25 | 1 | 1 | |
|
House of Wines |
25 | 1 | 1 |
Inactive systems (187, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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. Retrieved from ECHO on Oct 11, 2026.