Pennsylvania
Tioga County drinking water quality
84 active public water systems serve 33,215 people in Tioga County. 15 are compliant, 69 had at least one EPA violation in the past three years, 2 are designated serious violators, and 3 carry a health flag.
Needs attention
Community water systems
22 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wellsboro Municipal Authority |
8,225 | 4 | 0 | |
|
Mansfield Borough Mun Auth |
4,100 | 9 | 0 | |
|
Mansfield University |
3,000 | 5 | 0 | |
|
Elkland Boro Water Authority |
2,660 | 5 | 0 | |
|
Blossburg Municipal Authority |
1,650 | 3 | 0 | |
|
Westfield Borough Waterworks |
1,300 | 4 | 1 | |
|
Lawrenceville Boro Water Dept |
691 | 9 | 1 | |
|
Tioga Boro Municipal Authority |
615 | 2 | 1 | |
|
Knoxville Water Department |
590 | 4 | 0 | |
|
Hamilton Twp Mun Auth |
400 | 1 | 0 | |
|
Osceola Twp Municipal Authorit |
400 | 2 | 1 | |
|
Bloss Township Waterworks |
325 | 3 | 0 | |
|
Nelson Township Authority |
300 | 7 | 1 | |
|
Duncan Twp Municipal Authority |
220 | 6 | 0 | |
|
Tioga Mobile Home Community |
200 | 5 | 2 | |
|
Somers Lane MHP |
130 | 5 | 1 | |
|
Hillside View MHP |
85 | 1 | 0 | |
|
Watrous Water Association |
75 | 7 | 1 | |
|
Delmar Meadows MHC |
64 | 4 | 0 | |
|
KA Middlebury Mobile Home Park |
57 | 5 | 1 | |
|
Newtown Hill Trailer Park |
50 | 5 | 1 | |
|
Pleasant Village MHP |
40 | 4 | 0 |
Non-community systems (62: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (128, 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 Pennsylvania 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.