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Counties → Pennsylvania

Tioga County, Pennsylvania

SDWIS compliance plate

Sheet PA117 · Tioga County 84 sys · 22,092 viol · #1277/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 97.6% flagged
  • HEALTH-LOW 3.9% health
  • RANK-UPPER #1277/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 89%
  • SYS-MID 84 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Armstrong County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Tioga County ranks #1,277 of 3,254 counties by people served, and #50 of 68 counties in Pennsylvania. See methodology · corpus placement.

Tioga County standing, mid-flagged corpus third

Flagged-system rate 97.6% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 3.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,277 of 3,254 · #50 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Tioga County

Lowest/highest poles plus in-state counties nearest Tioga County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Greene · lowest Armstrong · near Fayette · near Sullivan · highest 66.7% 97.6% 97.6% 97.6% 97.6% 97.7% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Wellsboro Municipal Authority 8,225 688 Clean
Mansfield Borough Mun Auth 4,100 673 Clean
Mansfield University 3,000 728 -
Elkland Boro Water Authority 2,660 1,140 -
Blossburg Municipal Authority 1,650 244 -
Rb Walter & Williamson Schools 1,400 493 -
Westfield Borough Waterworks 1,300 472 -
Liberty Exxon 800 60 -
Lawrenceville Exxon 800 25 -
Lawrenceville Boro Water Dept 691 1,337 -
Tioga Boro Municipal Authority 615 449 -
Knoxville Water Department 590 578 -
Tioga County Fairgrounds 500 75 -
Twin Streams Campground LP 500 140 -
Osceola Twp Municipal Authorit 400 279 -
Hamilton Twp Mun Auth 400 133 -
Bloss Township Waterworks 325 251 -
Liberty Elementary School 325 122 -
North Penn Liberty High School 325 189 -
Nelson Township Authority 300 1,725 -
Victaulic Lawrenceville 300 521 -
Duncan Twp Municipal Authority 220 528 -
Tioga Mobile Home Community 200 661 -
Kwik Fill M411 Tioga Jct 200 13 -
Somers Lane MHP 130 731 -
Viant Westfield Plant 100 1,006 -
Martins Pantry 100 12 -
Stony Fork Creek Campground 100 163 -
Crooked Creek Campground 100 94 -
Wheel Inn Inc 100 49 -
Route 6 Campground 100 55 -
Jellystone Park PA Wilds 100 57 -
Kwik Fill M416 Wellsboro 100 55 -
Hills Creek State Park 88 14 -
Hillside View MHP 85 304 -
Acorns to Oaks Childcare Ctr 80 0 -
Watrous Water Association 75 881 -
Old Antlers Inn 75 160 -
Colonial Inn 75 23 -
Crossroads Country Tavern 75 97 -
Midway Truck Stop 75 97 -
Corey Creek Golf Club 75 130 -
Log Cabin Inn 65 135 -
Morris Run Amer Legion Pst 167 65 65 -
Delmar Meadows Mhc 64 55 -
Egts Inc Sabinsville Office 60 283 -
Leonard Harrison State Park 60 165 -
Tyoga Country Club 60 61 -
Canyon Country Campground 60 256 -
Ka Middlebury Mobile Home Park 57 394 -

Compare beyond Pennsylvania

Mid-flagged peers for Tioga County

Cross-state counties nearest Tioga County on flagged-system share (97.6%) and cumulative violation count (22,092). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.