County · Pennsylvania
Tioga County, Pennsylvania: drinking water records
Explore EPA records for 22 community water systems across 21 ZIP codes in Tioga County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 2 of the 22 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 22 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Mansfield Borough Mun Auth PA2590038 | 4,100 | 120 | 0 | 3 | 1.0 ppbbelow the action level |
| Wellsboro Municipal Authority PA2590042 | 8,225 | 120 | 0 | 0 | 1.0 ppbbelow the action level |
| Mansfield University PA2590812 | 3,000 | 0 | 0 | 4 | 3 ppbbelow the action level |
| Elkland Boro Water Authority PA2590035 | 2,660 | 0 | 0 | 3 | 2 ppbbelow the action level |
| Westfield Borough Waterworks PA2590043 | 1,300 | 0 | 0 | 3 | 4 ppbbelow the action level |
| Lawrenceville Boro Water Dept PA2590050 | 691 | 0 | 0 | 1 | 6 ppbbelow the action level |
| Knoxville Water Department PA2590036 | 590 | 0 | 0 | 1 | 1 ppbbelow the action level |
| Bloss Township Waterworks PA2590044 | 325 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Nelson Township Authority PA2590051 | 300 | 0 | 0 | 13 | 3 ppbbelow the action level |
| Duncan TWP Municipal Authority PA2590048 | 220 | 0 | 0 | 1 | 3.5 ppbbelow the action level |
| Tioga Mobile Home Community PA2590053 | 200 | 0 | 0 | 5 | 1 ppbbelow the action level |
| Somers Lane MHP PA2590008 | 130 | 0 | 0 | 1 | 1 ppbbelow the action level |
| Hillside View MHP PA2590013 | 85 | 0 | 0 | 1 | 0.5 ppbbelow the action level |
| Blossburg Municipal Authority PA2590033 | 1,650 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Tioga Boro Municipal Authority PA2590031 | 615 | 0 | 0 | 0 | 11 ppbbelow the action level |
| Hamilton TWP Mun Auth PA2590049 | 400 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Osceola TWP Municipal Authorit PA2590045 | 400 | 0 | 0 | 0 | 2.5 ppbbelow the action level |
| Watrous Water Association PA2590029 | 75 | 0 | 0 | 0 | 3 ppbbelow the action level |
| Delmar Meadows MHC PA2590041 | 64 | 0 | 0 | 0 | 12 ppbbelow the action level |
| Ka Middlebury Mobile Home Park PA2590018 | 57 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Newtown Hill Trailer Park PA2590006 | 50 | 0 | 0 | 0 | 25 ppbat or above the action level |
| Pleasant Village MHP PA2590017 | 40 | 0 | 0 | 0 | 1 ppbbelow the action level |
Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means
USGS · Monitoring stations
The water, more recently.
Available station readings in Tioga County, Pennsylvania. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Tioga County
21ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Arnot
- Blossburg
- Elkland
- Knoxville
- Lawrenceville
- Liberty
- Mansfield
- Millerton
- Tioga
- Wellsboro
- Westfield
View ZIP areas and understand coverage
- 16901Wellsboro
- 16911Arnot
- 16912Blossburg
- 16917
- 16920Elkland
- 16921
- 16928Knoxville
- 16929Lawrenceville
- 16930Liberty
- 16932
- 16933Mansfield
- 16935
- 16936Millerton
- 16938
- 16939
- 16940
- 16942
- 16946Tioga
- 16950Westfield
- 17727
- 17765
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.