Results from entry points (water leaving treatment, not household taps) of public water systems sampled under EPA's Fifth Unregulated Contaminant Monitoring Rule. Click a county to see every water system serving it, or turn on service areas and click a location to see the systems that serve that spot.
390 of the 2,900 public water systems listed for Pennsylvania were sampled. Sorted by the highest single result relative to EPA's 2024 limits. Each name links to a page with all of that system's results. All 2,900 Pennsylvania systems, including those not tested · Download all Pennsylvania results (CSV, gzip)
| System | PWSID | City | Population | PFOA (ppt) | PFOS (ppt) | HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Collegeville Trappe Joint Pwd | PA1460022 | Trappe | 8,470 | 235 | 15 | 0.422 | PFOA ≥ 3 × its limit |
| Emmaus Borough Public Water | PA3390032 | Emmaus | 14,000 | 22.4 | 153 | 13.303 | PFOS ≥ 3 × its limit |
| Pa American Audubon | PA1460055 | Norristown | 8,200 | 30.8 | 57.9 | 1.072 | PFOS ≥ 3 × its limit |
| Caernarvon Twp Auth | PA3060052 | Morgantown | 4,245 | 55.8 | <MRL | 0.015 | PFOA ≥ 3 × its limit |
| Palmerton Municipal Authority | PA3130012 | Palmerton | 7,000 | 42.5 | 40 | 3.15 | PFOA ≥ 3 × its limit |
| Horsham Water&Sewer Authority | PA1460033 | Horsham | 26,000 | 17.5 | 33.8 | 1.063 | PFOS ≥ 3 × its limit |
| City Of Lancaster | PA7360058 | Lancaster | 120,000 | 23.8 | <MRL | 0.005 | PFOA ≥ 3 × its limit |
| Northampton Bucks Co Mun Auth | PA1090089 | Richboro | 36,750 | 19.6 | 23 | 0.553 | PFOS ≥ 3 × its limit |
| Veolia Water Bethel | PA1230012 | Harrisburg | 7,809 | 22.3 | <MRL | 0.972 | PFOA ≥ 3 × its limit |
| Buckingham Twp Cold Spring | PA1090137 | Buckingham | 4,760 | 22 | 19.3 | 0.007 | PFOA ≥ 3 × its limit |
| Aqua Pa Hatboro | PA1460028 | Bryn Mawr | 12,901 | 16.2 | 21.5 | 0.625 | PFOS ≥ 3 × its limit |
| Ashland Area Water Authority | PA3540030 | Ashland | 4,200 | <MRL | 20.1 | 0.95 | PFOS ≥ 3 × its limit |
| Aqua Pa Chalfont | PA1090005 | Bryn Mawr | 5,900 | 8.8 | 19 | 0.313 | PFOS ≥ 3 × its limit |
| Coraopolis Water & Sewer Auth | PA5020010 | Coraopolis | 5,804 | 5.2 | 18.8 | 1.267 | PFOS ≥ 3 × its limit |
| Kennett Square Mun Water Works | PA1150108 | Kennett Square | 6,328 | 17.7 | 14.4 | 0.422 | PFOA ≥ 3 × its limit |
| Perkasie Regional Authority | PA1090046 | Sellersville | 15,000 | 6.5 | 17.6 | 0.51 | PFOS ≥ 3 × its limit |
| N Middleton Water Auth | PA7210049 | Carlisle | 8,455 | 8 | 16.9 | 0.354 | PFOS ≥ 3 × its limit |
| Finale Partners | PA1090329 | New Hope | 150 | 16.8 | 9.7 | 0.003 | PFOA ≥ 3 × its limit |
| Paw Penn District | PA3060069 | Reading | 28,508 | 6.5 | 16.4 | 1.022 | PFOS ≥ 3 × its limit |
| Upper Southampton Mun Auth | PA1090063 | Southampton | 16,000 | 14.2 | 16.4 | 0.504 | PFOS ≥ 3 × its limit |
| Ambler Boro Water Dept | PA1460020 | Ambler | 20,000 | 15.3 | 13.7 | 1.793 | PFOA ≥ 3 × its limit |
| East Petersburg Borough | PA7360135 | East Petersburg | 6,215 | 6.3 | 15.2 | 0.343 | PFOS ≥ 3 × its limit |
| Telford Borough Authority | PA1460050 | Telford | 7,700 | 14.9 | 15.2 | 0.553 | PFOS ≥ 3 × its limit |
| Pa Amer Water Co Frackville | PA3540032 | Milton | 5,583 | <MRL | 15 | 1.35 | PFOS ≥ 3 × its limit |
| Doylestown Boro Water Dept | PA1090081 | Doylestown | 8,700 | 14.6 | 11.3 | 0.984 | PFOA ≥ 3 × its limit |
| Quakertown Boro | PA1090082 | Quakertown | 12,800 | 10.8 | 14.3 | 2.71 | PFOS ≥ 3 × its limit |
| Dtma Main System | PA1090128 | Doylestown | 8,655 | 14.2 | 13.4 | 0.742 | PFOA ≥ 3 × its limit |
| Gettysburg Muni Auth | PA7010019 | Gettysburg | 12,425 | 7.4 | 14.1 | 0.002 | PFOS ≥ 3 × its limit |
| North Wales Water Authority | PA1460048 | North Wales | 72,496 | 13 | 11.1 | 0.563 | PFOA ≥ 3 × its limit |
| Littlestown Boro | PA7010022 | Littlestown | 7,300 | 4.5 | 12.9 | 0.603 | PFOS ≥ 3 × its limit |
| Manheim Area Water & Sewer Aut | PA7360078 | Manheim | 6,701 | 12.8 | 7.9 | 0.003 | PFOA ≥ 3 × its limit |
| Paw Glen Alsace Div | PA3060088 | Mechanicsburg | 24,951 | 5.8 | 12.7 | 0.544 | PFOS ≥ 3 × its limit |
| Veolia Middletown | PA7220038 | Middletown | 9,600 | 7.5 | 12.7 | 0.612 | PFOS ≥ 3 × its limit |
| Aqua Pa Main System | PA1460073 | Bryn Mawr | 822,600 | 12.6 | 9.2 | 1.203 | PFOA ≥ 3 × its limit |
| Newtown Artesian Water Co | PA1090043 | Newtown | 38,500 | 12.3 | 7.9 | 0.004 | PFOA ≥ 3 × its limit |
| Montoursville Water Company | PA4410175 | Montoursville | 4,983 | 6.6 | 12.1 | 0.31 | PFOS ≥ 3 × its limit |
| Aqua Pa Superior Main System | PA1460085 | Bryn Mawr | 11,400 | 11.8 | 5.8 | 0.003 | PFOA 1–3 × its limit |
| Muhlenberg Twp Muni Auth | PA3060038 | Reading | 22,400 | 8.8 | 11.5 | 0.432 | PFOS 1–3 × its limit |
| Veolia Mechanicsburg | PA7210028 | Harrisburg | 45,013 | 7.1 | 11.4 | 0.003 | PFOS 1–3 × its limit |
| Beaver Boro Muni Auth | PA5040009 | Beaver | 5,799 | 7 | 4.9 | 2.828 | Hazard Index 1–3 × its limit |
| Carlisle Water Trmt Plt | PA7210002 | Carlisle | 26,000 | 5 | 11.3 | 0.004 | PFOS 1–3 × its limit |
| Shrewsbury Borough | PA7670088 | Shrewsbury | 4,727 | 5.9 | 11.2 | 0.453 | PFOS 1–3 × its limit |
| West Manchester Twp Auth | PA7670101 | York | 9,960 | 6.3 | 11.1 | 0.333 | PFOS 1–3 × its limit |
| Aqua Pa Perkiomen Township | PA1460069 | Bryn Mawr | 3,600 | 10.8 | 7.4 | 0.007 | PFOA 1–3 × its limit |
| Pa American Royersford | PA1150166 | Spring City | 49,508 | 9.1 | 10.7 | 0.503 | PFOS 1–3 × its limit |
| Pa American Water Co West | PA7210029 | Mechanicsburg | 105,127 | 4.9 | 10.4 | 0.002 | PFOS 1–3 × its limit |
| Millersburg Water Auth | PA7220034 | Millersburg | 4,600 | 4.5 | 10 | 0.35 | PFOS 1–3 × its limit |
| Moon Twp Muni Auth | PA5020011 | Moon Township | 38,000 | <MRL | 10 | 0.7 | PFOS 1–3 × its limit |
| Veolia Newberry System | PA7670061 | Harrisburg | 6,480 | 10 | 10 | 0.372 | PFOA 1–3 × its limit |
| Pa American Water Co Yardley | PA1090074 | Yardley | 33,171 | 9.7 | 6.1 | 0.002 | PFOA 1–3 × its limit |
| Dover Twp Water Sys | PA7670073 | Dover | 21,097 | 5.9 | 9.6 | 0.003 | PFOS 1–3 × its limit |
| Aqua Pa Friendship | PA1150137 | Bryn Mawr | 8,800 | 7.7 | 9.5 | 0.304 | PFOS 1–3 × its limit |
| Upper Leacock Township | PA7360140 | Leola | 7,734 | 8.1 | 9.5 | 0.372 | PFOS 1–3 × its limit |
| Aqua Pa Uwchlan | PA1150035 | Bryn Mawr | 35,518 | 9.3 | 7.1 | 0.003 | PFOA 1–3 × its limit |
| Freeland Boro Muni Water Auth | PA2400054 | Freeland | 4,610 | 5.6 | 9.1 | 0.002 | PFOS 1–3 × its limit |
| East Hempfield Water Auth | PA7360063 | Landisville | 20,988 | 9 | 5 | 0.004 | PFOA 1–3 × its limit |
| New Holland Borough | PA7360099 | New Holland | 8,490 | 5.1 | 8.3 | 0.722 | PFOS 1–3 × its limit |
| Richland Twp Water Authority | PA1090131 | Quakertown | 6,800 | 7.1 | 8.3 | 0.512 | PFOS 1–3 × its limit |
| Schwenksville Borough Auth | PA1460042 | Schwenksville | 5,200 | 5.4 | 8.3 | 0.003 | PFOS 1–3 × its limit |
| Eagle Lake Community Assoc | PA2350833 | Gouldsboro | 3,500 | 8.1 | <MRL | 0 | PFOA 1–3 × its limit |
| Manheim Auto Auction | PA7360345 | Manheim | 1,426 | <MRL | 8.1 | 0.46 | PFOS 1–3 × its limit |
| Philadelphia Water Department | PA1510001 | Philadelphia | 1,600,000 | 8.1 | 6 | 0.453 | PFOA 1–3 × its limit |
| Aqua Pa Bensalem | PA1090078 | Bryn Mawr | 59,001 | 8 | 7.5 | 0.522 | PFOA 1–3 × its limit |
| Hilltown Twp Water&Sewer Auth | PA1090117 | Sellersville | 5,770 | 8 | 6.8 | 0.003 | PFOA 1–3 × its limit |
| Pa American Water Berwick | PA4190013 | Milton | 15,282 | 7.9 | 4 | 0.002 | PFOA 1–3 × its limit |
| Veolia Water Pa Dallas | PA2400076 | Harrisburg | 7,563 | 4.1 | 7.9 | 0.35 | PFOS 1–3 × its limit |
| Pa Amer Water Co Lake Scranton | PA2359008 | Wilkes Barre | 137,142 | 4.9 | 7.6 | 0.002 | PFOS 1–3 × its limit |
| Warwick Twp Water & Sewer Auth | PA1090127 | Jamison | 14,699 | 7.6 | 7.1 | 0.532 | PFOA 1–3 × its limit |
| Plumstead Northern System | PA1090144 | Pipersville | 2,605 | 7.5 | 7.4 | 0.004 | PFOA 1–3 × its limit |
| Bcwsa Main Lower South | PA1090079 | Warrington | 52,621 | 7.3 | 6.9 | 0.483 | PFOA 1–3 × its limit |
| Bucks County Community College | PA1090962 | Newtown | 8,000 | 7.1 | <MRL | 0 | PFOA 1–3 × its limit |
| Pittsburgh Intl Airport | PA5020947 | Pittsburgh | 26,915 | <MRL | 7 | 0.47 | PFOS 1–3 × its limit |
| Aqua Pa Spring Run | PA1150089 | Bryn Mawr | 8,151 | 6.8 | 4.4 | 0.52 | PFOA 1–3 × its limit |
| Reading Area Water Authority | PA3060059 | Reading | 95,100 | 6.6 | <MRL | 0.003 | PFOA 1–3 × its limit |
| Tunkhannock Boro Munic Auth | PA2660014 | Tunkhannock | 5,349 | 4.8 | 6.6 | 0 | PFOS 1–3 × its limit |
| Aqua Pa Flying Hills Wa Sys | PA3060018 | Bryn Mawr | 5,100 | 6.3 | 6.4 | 0.002 | PFOS 1–3 × its limit |
| Upper Hanover Water Authority | PA1460036 | East Greenville | 4,600 | 6.2 | 5.5 | 1.12 | PFOA 1–3 × its limit |
| Aqua Pa West Chester | PA1150098 | Bryn Mawr | 48,600 | 5.9 | <MRL | 0.002 | PFOA 1–3 × its limit |
| Eei Meadows Complex | PA2400115 | Dallas | 628 | <MRL | 5.9 | 0.002 | PFOS 1–3 × its limit |
| Phoenixville Water Dept | PA1150077 | Phoenixville | 16,599 | 5.9 | 5.1 | 0.005 | PFOA 1–3 × its limit |
| Ephrata Area Joint Authority | PA7360045 | Ephrata | 24,500 | 5.8 | 4.6 | 0.363 | PFOA 1–3 × its limit |
| Elizabethtown Area Water | PA7360124 | Elizabethtown | 19,000 | <MRL | 5.7 | 0.003 | PFOS 1–3 × its limit |
| Mt Penn Boro Muni Auth | PA3060082 | Reading | 10,400 | <MRL | 5.7 | 0.77 | PFOS 1–3 × its limit |
| Pawc Pocono District | PA2450063 | Tobyhanna | 17,860 | 5.7 | 5.2 | 0.003 | PFOA 1–3 × its limit |
| Titusville Municipal Water | PA6200051 | Titusville | 6,146 | <MRL | 5.7 | 0 | PFOS 1–3 × its limit |
| Lehman Jackson Elementary | PA2400370 | Lehman | 875 | 5.2 | 5.5 | 1.34 | PFOS 1–3 × its limit |
| Beaver Falls Muni Auth | PA5040012 | Beaver Falls | 49,500 | 5.4 | 4 | 0.018 | PFOA 1–3 × its limit |
| Millersville Univ | PA7360127 | Millersville | 7,950 | 5.4 | 5.3 | 0.313 | PFOA 1–3 × its limit |
| Radisson Valley Forge Hotel | PA1460492 | King Of Prussia | 3,500 | 5.4 | 4 | 0.002 | PFOA 1–3 × its limit |
| Whitehall Twp Authority | PA3390081 | Whitehall | 13,063 | 4.9 | 5.4 | 0.7 | PFOS 1–3 × its limit |
| Williamsport Mun Water Auth | PA4410173 | Williamsport | 51,000 | <MRL | 5.1 | 1.33 | Hazard Index 1–3 × its limit |
| State Correctional Inst | PA7210046 | Camp Hill | 2,522 | <MRL | 5.3 | 0.002 | PFOS 1–3 × its limit |
| Western Allegheny County Mun A | PA5020034 | Oakdale | 19,031 | <MRL | 5.2 | 0.37 | PFOS 1–3 × its limit |
| Chester Water Authority | PA1230004 | Chester | 140,437 | 5.1 | <MRL | 0.002 | PFOA 1–3 × its limit |
| North Penn Water Authority | PA1460034 | Lansdale | 91,941 | 5.1 | <MRL | 0.002 | PFOA 1–3 × its limit |
| State Corr Inst Benner Twp | PA4140098 | Bellefonte | 2,850 | <MRL | 5.1 | 0 | PFOS 1–3 × its limit |
| Akron Borough | PA7360128 | Akron | 4,200 | 5 | 4.4 | 0.002 | PFOA 1–3 × its limit |
| East Cocalico Township Auth | PA7360113 | Denver | 6,735 | 4.5 | 4.9 | 0.003 | PFOS 1–3 × its limit |
| Dillsburg Area Authority | PA7670071 | Dillsburg | 8,962 | 4.8 | 4.7 | 0.332 | PFOA 1–3 × its limit |
| Masonic Homes | PA7360025 | Elizabethtown | 3,707 | 4.8 | <MRL | 0.002 | PFOA 1–3 × its limit |
| New Oxford Munci Auth | PA7010025 | New Oxford | 3,963 | 4.3 | 4.8 | 0.003 | PFOS 1–3 × its limit |
| Paradise Stream Resor | PA2450542 | Mount Pocono | 774 | <MRL | 4.8 | 0 | PFOS 1–3 × its limit |
| Brighton Twp Muni Auth | PA5040017 | Beaver | 7,920 | <MRL | <MRL | 1.198 | Hazard Index 1–3 × its limit |
| Wyomissing Boro Water System | PA3060083 | Wyomissing | 8,500 | 4.7 | <MRL | 0.002 | PFOA 1–3 × its limit |
| Stewartstown Boro Water Auth | PA7670062 | Stewartstown | 5,206 | 4.6 | 4.1 | 0.003 | PFOA 1–3 × its limit |
| Aqua Pa Bristol | PA1090001 | Bryn Mawr | 28,727 | 4.5 | <MRL | 0 | PFOA 1–3 × its limit |
| Highridge Water Auth | PA5650069 | Blairsville | 16,000 | 4.3 | 4.5 | 0.55 | PFOS 1–3 × its limit |
| Outlet Shops At Gettysburg | PA7010952 | Gettysburg | 6,500 | 4.5 | 4.4 | 0.002 | PFOA 1–3 × its limit |
| Salisbury Twp Water System | PA3390062 | Allentown | 8,522 | 4.5 | 4.2 | 0.002 | PFOA 1–3 × its limit |
| Monaca Boro Water Dept | PA5040039 | Monaca | 6,500 | <MRL | <MRL | 1.113 | Hazard Index 1–3 × its limit |
| Lca Allentown Division | PA3390024 | Allentown | 118,000 | <MRL | 4.4 | 0.002 | PFOS 1–3 × its limit |
| Lca Wlsa Central Division | PA3390073 | Allentown | 47,693 | 4.4 | <MRL | 0.31 | PFOA 1–3 × its limit |
| Oxford Borough | PA1150066 | Oxford | 5,280 | 4.3 | <MRL | 0.003 | PFOA 1–3 × its limit |
| Pa Amer Water Co | PA7220017 | Hummelstown | 50,200 | 4.3 | <MRL | 0.002 | PFOA 1–3 × its limit |
| Downingtown Water Authority | PA1150026 | Downingtown | 9,900 | 4.2 | <MRL | 0.002 | PFOA 1–3 × its limit |
| Wernersville Muni Water Auth | PA3060076 | Wernersville | 7,920 | 4.2 | <MRL | 0.002 | PFOA 1–3 × its limit |
| West Reading Boro Water | PA3060078 | West Reading | 4,300 | 4.2 | <MRL | 0.002 | PFOA 1–3 × its limit |
| Zelienople Boro | PA5100093 | Zelienople | 4,123 | 4.2 | <MRL | 0.009 | PFOA 1–3 × its limit |
| Mt Hope Est & Winery | PA7360320 | Manheim | 2,500 | 4.1 | <MRL | 0.009 | PFOA 1–3 × its limit |
| Swt Main System | PA3390065 | Allentown | 14,500 | 4 | <MRL | 0 | PFOA 1–3 × its limit |
| New Freedom Boro Water Auth | PA7670082 | New Freedom | 4,464 | <MRL | <MRL | 0.626 | Hazard Index below its limit |
| Catasauqua Mun Water Works | PA3390044 | Catasauqua | 6,598 | <MRL | <MRL | 0.421 | Hazard Index below its limit |
| Spring Twp Water Authority | PA4140118 | Bellefonte | 3,300 | <MRL | <MRL | 0.42 | Hazard Index below its limit |
| Sewickley Boro Water Auth | PA5020050 | Sewickley | 6,800 | <MRL | <MRL | 0.333 | Hazard Index below its limit |
| Milford Twp Water Authority | PA1090125 | Quakertown | 4,497 | <MRL | <MRL | 0.31 | Hazard Index below its limit |
| New Sewickley Twp Muni Auth | PA5040085 | Rochester | 4,276 | <MRL | <MRL | 0.013 | Hazard Index below its limit |
| Pa Amer Water Co Ellwood Cty | PA6370011 | New Castle | 17,200 | <MRL | <MRL | 0.011 | Hazard Index below its limit |
| Derry Boro Muni Auth | PA5650049 | Derry | 6,500 | <MRL | <MRL | 0.007 | Hazard Index below its limit |
| North Sewickley Mun Water Auth | PA5040010 | Beaver Falls | 4,578 | <MRL | <MRL | 0.008 | Hazard Index below its limit |
| Tilden Industrial Park | PA3061067 | Hamburg | 4,000 | <MRL | <MRL | 0.007 | Hazard Index below its limit |
| Springdale Boro Water Dept | PA5020053 | Springdale | 3,405 | <MRL | <MRL | 0.004 | Hazard Index below its limit |
| East Donegal | PA7360083 | Columbia | 4,048 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Humboldt Industrial Park | PA2400806 | Hazleton | 11,243 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Pa American Norristown | PA1460046 | Norristown | 88,885 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Warwick Twp Lititz Sys | PA7360116 | Lititz | 8,561 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Denver Boro | PA7360017 | Denver | 3,861 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| General Authority Of Franklin | PA6610020 | Franklin | 9,096 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Hellertown Borough Authority | PA3480052 | Hellertown | 5,800 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Lca North Whitehall Division | PA3390055 | Allentown | 2,910 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Lititz Boro | PA7360126 | Lititz | 9,397 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| London Grove Twp Mun Auth | PA1150165 | West Grove | 4,770 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Pottstown Borough Water Auth | PA1460037 | Pottstown | 36,000 | <MRL | <MRL | 0.003 | Hazard Index below its limit |
| Shillington Muni Auth | PA3060067 | Reading | 13,300 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| South Middleton Twp Water Auth | PA7210050 | Boiling Springs | 11,695 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Veolia Water | PA7220015 | Harrisburg | 110,000 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Aqua Pa Fawn Lake Forest | PA2520037 | Honesdale | 6,533 | <MRL | <MRL | 0 | Other PFAS detected |
| Aqua Pa Shenango Valley Wtp | PA6430054 | Sharon | 48,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Aqua Shenandoah | PA3540044 | Shamokin | 9,500 | <MRL | <MRL | 0 | Other PFAS detected |
| Bangor Area School Complex | PA3480816 | Bangor | 2,700 | <MRL | <MRL | 0 | Other PFAS detected |
| Bear Valley Joint Auth | PA7280043 | St Thomas | 12,589 | <MRL | <MRL | 0 | Other PFAS detected |
| Brookville Municipal Auth | PA6330004 | Brookville | 6,220 | <MRL | <MRL | 0 | Other PFAS detected |
| Clearfield Municipal Auth | PA6170008 | Clearfield | 14,000 | <MRL | <MRL | 0 | Other PFAS detected |
| College Twp Water Authority | PA4140082 | State College | 6,000 | <MRL | <MRL | 0 | Other PFAS detected |
| Conemaugh Twp Muni Auth | PA4560048 | Davidsville | 7,800 | <MRL | <MRL | 0 | Other PFAS detected |
| Danville Municipal Water Auth | PA4470007 | Danville | 4,992 | <MRL | <MRL | 0 | Other PFAS detected |
| Falls Twp Water & Sewer Dept | PA1090022 | Fairless Hills | 24,400 | <MRL | <MRL | 0 | Other PFAS detected |
| Fawn Frazer Jt Water Auth | PA5020076 | Natrona Heights | 4,650 | <MRL | <MRL | 0 | Other PFAS detected |
| Hanover Muni Water Works | PA7670076 | Hanover | 40,900 | <MRL | <MRL | 0 | Other PFAS detected |
| Harmony Boro Water Auth | PA5100042 | Harmony | 6,669 | <MRL | <MRL | 0 | Other PFAS detected |
| Maidencreek Twp Water Auth | PA3060012 | Blandon | 7,505 | <MRL | <MRL | 0 | Other PFAS detected |
| Merck And Co Inc | PA1461065 | West Point | 8,550 | <MRL | <MRL | 0 | Other PFAS detected |
| Monroeville Municipal Auth | PA5020027 | Monroeville | 48,500 | <MRL | <MRL | 0 | Other PFAS detected |
| Morrisville Munic Authority | PA1090037 | Morrisville | 13,342 | <MRL | <MRL | 0 | Other PFAS detected |
| Mt Joy Boro Auth | PA7360091 | Mount Joy | 15,261 | <MRL | <MRL | 0 | Other PFAS detected |
| Mun Water Auth Of Aliquippa | PA5040006 | Aliquippa | 15,685 | <MRL | <MRL | 0 | Other PFAS detected |
| Nanty Glo Water Auth | PA4110023 | Nanty Glo | 3,152 | <MRL | <MRL | 0 | Other PFAS detected |
| Nwwa Warrington Township | PA1090070 | North Wales | 21,588 | <MRL | <MRL | 0 | Other PFAS detected |
| Pa Amer Water Co New Castle | PA6370034 | New Castle | 43,279 | <MRL | <MRL | 0 | Other PFAS detected |
| Pa American Coatesville | PA1150106 | Coatesville | 36,960 | <MRL | <MRL | 0 | Other PFAS detected |
| Paw Crystal Lake | PA2409003 | Scranton | 9,773 | <MRL | <MRL | 0 | Other PFAS detected |
| Sharpsville Boro Water Co | PA6430055 | Sharpsville | 5,029 | <MRL | <MRL | 0 | Other PFAS detected |
| Upmc Magee Womens Hospital | PA5020883 | Pittsburgh | 4,900 | <MRL | <MRL | 0 | Other PFAS detected |
| Upper Saucon Twp Water Supply | PA3390077 | Center Valley | 7,300 | <MRL | <MRL | 0 | Other PFAS detected |
| Warminster Municipal Authority | PA1090069 | Warminster | 36,000 | <MRL | <MRL | 0 | Other PFAS detected |
| West Earl Water Authority | PA7360143 | Brownstown | 4,327 | <MRL | <MRL | 0 | Other PFAS detected |
| Wrightsville Boro Muni Auth | PA7670097 | Wrightsville | 4,076 | <MRL | <MRL | 0 | Other PFAS detected |
| Albion Borough | PA6250007 | Albion | 5,842 | <MRL | <MRL | 0 | No PFAS detected |
| Altoona Water Authority | PA4070023 | Altoona | 62,500 | <MRL | <MRL | 0 | No PFAS detected |
| Ambridge Water Auth | PA5040008 | Ambridge | 19,500 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Greenville | PA6430037 | Sharon | 8,600 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Inc Treasure Lake Div | PA6170048 | Sharon | 4,155 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Jenks Twp Wtp | PA6270008 | Sharon | 4,320 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Lake Latonka Wtp | PA6430059 | Sharon | 1,600 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Roaring Creek Division | PA4490024 | Shamokin | 43,000 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Susquehanna Division | PA2080028 | Sayre | 15,569 | <MRL | <MRL | 0 | No PFAS detected |
| Aqua Pa Water Co Honesdale | PA2640018 | White Haven | 5,500 | <MRL | <MRL | 0 | No PFAS detected |
| Auth Of Boro Of Charleroi | PA5630039 | Charleroi | 27,000 | <MRL | <MRL | 0 | No PFAS detected |
| Baden Boro Water Dept | PA5040080 | Baden | 3,948 | <MRL | <MRL | 0 | No PFAS detected |
| Belle Vernon Boro Muni Auth | PA5260004 | Belle Vernon | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Bellefonte Borough Water Auth | PA4140075 | Bellefonte | 9,500 | <MRL | <MRL | 0 | No PFAS detected |
| Birdsboro Muni Water Auth | PA3060010 | Birdsboro | 5,353 | <MRL | <MRL | 0 | No PFAS detected |
| Blairsville Muni Auth | PA5320006 | Blairsville | 4,023 | <MRL | <MRL | 0 | No PFAS detected |
| Blythe Twp Municipal Authority | PA3540017 | New Philadelphia | 7,100 | <MRL | <MRL | 0 | No PFAS detected |
| Boro Of Waynesboro | PA7280032 | Waynesboro | 13,200 | <MRL | <MRL | 0 | No PFAS detected |
| Boyertown Muni Auth | PA3060081 | Boyertown | 8,000 | <MRL | <MRL | 0 | No PFAS detected |
| Brackenridge Boro Water Dept | PA5020006 | Brackenridge | 3,700 | <MRL | <MRL | 0 | No PFAS detected |
| Bradford City Water Authority | PA6420014 | Bradford | 18,500 | <MRL | <MRL | 0 | No PFAS detected |
| Brockway Boro Municipal Auth | PA6330002 | Brockway | 4,384 | <MRL | <MRL | 0 | No PFAS detected |
| Brodhead Creek Reg Water Auth | PA2450034 | East Stroudsburg | 30,000 | <MRL | <MRL | 0 | No PFAS detected |
| Buck Hill Falls Water Co | PA2450020 | Buck Hill Falls | 876 | <MRL | <MRL | 0 | No PFAS detected |
| Buffalo Twp Mun Auth Freeport | PA5030019 | Sarver | 5,849 | <MRL | <MRL | 0 | No PFAS detected |
| Capital Region Water | PA7220049 | Harrisburg | 66,540 | <MRL | <MRL | 0 | No PFAS detected |
| Carbon Plaza Mall | PA3130308 | Branchburg | 650 | <MRL | <MRL | 0 | No PFAS detected |
| Center Twp Water Auth | PA5040007 | Aliquippa | 19,000 | <MRL | <MRL | 0 | No PFAS detected |
| Central Indiana Co Water Auth | PA5320040 | Homer City | 4,920 | <MRL | <MRL | 0 | No PFAS detected |
| Centre Hall Boro Water Dept | PA4140077 | Centre Hall | 1,900 | <MRL | <MRL | 0 | No PFAS detected |
| Chambersburg Boro Water Sys | PA7280005 | Chambersburg | 31,048 | <MRL | <MRL | 0 | No PFAS detected |
| City Of Bethlehem | PA3480046 | Bethlehem | 117,259 | <MRL | <MRL | 0 | No PFAS detected |
| City Of Dubois Water Depart | PA6170016 | Dubois | 7,794 | <MRL | <MRL | 0 | No PFAS detected |
| City Of Lock Haven Water Dept | PA4180048 | Lock Haven | 8,450 | <MRL | <MRL | 0 | No PFAS detected |
| Columbia Water Co | PA7360123 | Columbia | 25,200 | <MRL | <MRL | 0 | No PFAS detected |
| Conneaut Lake Borough Wtp | PA6200015 | Conneaut Lake | 870 | <MRL | <MRL | 0 | No PFAS detected |
| Cooper Twp Municipal Auth | PA6170041 | Morrisdale | 3,700 | <MRL | <MRL | 0 | No PFAS detected |
| Coterra Energy | PA2580558 | Montrose | 50 | <MRL | <MRL | 0 | No PFAS detected |
| Coudersport Boro Authority | PA6530009 | Coudersport | 3,166 | <MRL | <MRL | 0 | No PFAS detected |
| Cranberry Twp Wtp | PA5100094 | Cranberry Twp | 42,000 | <MRL | <MRL | 0 | No PFAS detected |
| Creative Kids East Child Dev | PA3391032 | Orefield | 175 | <MRL | <MRL | 0 | No PFAS detected |
| Creswell Heights Jt Auth | PA5040063 | South Heights | 15,000 | <MRL | <MRL | 0 | No PFAS detected |
| Croyle Twp Water Auth | PA4110299 | Summerhill | 989 | <MRL | <MRL | 0 | No PFAS detected |
| Dallastown Yoe Water Auth | PA7670085 | Dallastown | 12,300 | <MRL | <MRL | 0 | No PFAS detected |
| Duquesne Water Dept | PA5020012 | Duquesne | 5,565 | <MRL | <MRL | 0 | No PFAS detected |
| E Armstrong Cnty Muni Auth | PA5030004 | Elderton | 1,875 | <MRL | <MRL | 0 | No PFAS detected |
| E Stroudsburg Boro Water Dept | PA2450023 | East Stroudsburg | 13,000 | <MRL | <MRL | 0 | No PFAS detected |
| East Penn Mfg Co | PA3060681 | Lyon Station | 6,170 | <MRL | <MRL | 0 | No PFAS detected |
| Easton Area Water System | PA3480050 | Easton | 96,867 | <MRL | <MRL | 0 | No PFAS detected |
| Ebensburg Boro Muni Auth | PA4110009 | Ebensburg | 8,500 | <MRL | <MRL | 0 | No PFAS detected |
| Edgeworth Boro Muni Auth | PA5020015 | Leetsdale | 7,781 | <MRL | <MRL | 0 | No PFAS detected |
| Edinboro Water Authority | PA6250022 | Edinboro | 7,800 | <MRL | <MRL | 0 | No PFAS detected |
| Ellsworth Boro Water Dept | PA5630044 | Ellsworth | 1,250 | <MRL | <MRL | 0 | No PFAS detected |
| Emporium Water Company | PA6120002 | Emporium | 3,300 | <MRL | <MRL | 0 | No PFAS detected |
| Erie City Water Authority | PA6250028 | Erie | 220,001 | <MRL | <MRL | 0 | No PFAS detected |
| Evitts Creek Water Co | PA4050028 | Bedford | 100 | <MRL | <MRL | 0 | No PFAS detected |
| Fairview Twp Water Auth Dist 3 | PA6250040 | Fairview | 3,320 | <MRL | <MRL | 0 | No PFAS detected |
| Fairview Twp Water District 1 | PA6250087 | Fairview | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Fannett Metal Sch Dist | PA7280369 | Willow Hill | 600 | <MRL | <MRL | 0 | No PFAS detected |
| Findlay Twp Municipal Auth | PA5020078 | Clinton | 11,460 | <MRL | <MRL | 0 | No PFAS detected |
| Fishertown Water Assn | PA4050029 | Fishertown | 801 | <MRL | <MRL | 0 | No PFAS detected |
| Fleetwood Boro Water System | PA3060029 | Fleetwood | 4,218 | <MRL | <MRL | 0 | No PFAS detected |
| Fox Chapel Auth | PA5020040 | Pittsburgh | 18,500 | <MRL | <MRL | 0 | No PFAS detected |
| Foxcroft Manor Mobile Home Pk | PA4410166 | Williamsport | 200 | <MRL | <MRL | 0 | No PFAS detected |
| Franklin System York Water | PA7280045 | York | 4,400 | <MRL | <MRL | 0 | No PFAS detected |
| Geisinger Medical Center | PA4470012 | Danville | 6,442 | <MRL | <MRL | 0 | No PFAS detected |
| Girard Boro Water Dept | PA6250049 | Girard | 3,301 | <MRL | <MRL | 0 | No PFAS detected |
| Glendale Valley Municipal Auth | PA4110060 | Flinton | 3,200 | <MRL | <MRL | 0 | No PFAS detected |
| Greater Johnstown Wa Riverside | PA4110034 | Johnstown | 49,500 | <MRL | <MRL | 0 | No PFAS detected |
| Greencastle Area Water Auth | PA7280014 | Greencastle | 5,500 | <MRL | <MRL | 0 | No PFAS detected |
| Grove City Boro Water Dept | PA6430040 | Grove City | 7,871 | <MRL | <MRL | 0 | No PFAS detected |
| Guilford Water Auth | PA7280038 | Chambersburg | 28,135 | <MRL | <MRL | 0 | No PFAS detected |
| Hamburg Muni Water&Sewer Auth | PA3060035 | Hamburg | 4,990 | <MRL | <MRL | 0 | No PFAS detected |
| Hampton Shaler Water Authority | PA5020019 | Allison Park | 61,949 | <MRL | <MRL | 0 | No PFAS detected |
| Harrison Twp Water Auth | PA5020108 | Natrona Heights | 13,411 | <MRL | <MRL | 0 | No PFAS detected |
| Hastings Muni Auth | PA4110013 | Hastings | 2,100 | <MRL | <MRL | 0 | No PFAS detected |
| Hca Hazleton Division | PA2408001 | Hazleton | 45,000 | <MRL | <MRL | 0 | No PFAS detected |
| Hegins Hubley Authority | PA3540047 | Valley View | 3,870 | <MRL | <MRL | 0 | No PFAS detected |
| Hemlock Farms (Main) | PA2520033 | Lords Valley | 8,321 | <MRL | <MRL | 0 | No PFAS detected |
| Hickory Hills Mhc | PA3480015 | Bath | 800 | <MRL | <MRL | 0 | No PFAS detected |
| Highland S & W Auth Beaverdam | PA4110017 | Johnstown | 22,617 | <MRL | <MRL | 0 | No PFAS detected |
| Hollidaysburg Muni Auth | PA4070017 | Hollidaysburg | 8,523 | <MRL | <MRL | 0 | No PFAS detected |
| Houtzdale Municipal Authority | PA6170023 | Houtzdale | 8,410 | <MRL | <MRL | 0 | No PFAS detected |
| Huntingdon Boro Water Dept | PA4310012 | Huntingdon | 13,776 | <MRL | <MRL | 0 | No PFAS detected |
| Icmsa Crooked Creek | PA5320109 | Indiana | 9,638 | <MRL | <MRL | 0 | No PFAS detected |
| Indian Creek Valley Water Auth | PA5260011 | Indian Head | 7,000 | <MRL | <MRL | 0 | No PFAS detected |
| Jersey Shore Area Jnt Wat Auth | PA4410156 | Jersey Shore | 6,600 | <MRL | <MRL | 0 | No PFAS detected |
| Kittanning Suburb Jt Water Aut | PA5030043 | Adrian | 8,000 | <MRL | <MRL | 0 | No PFAS detected |
| Kline Township Mun Authority | PA3540014 | Mcadoo | 6,700 | <MRL | <MRL | 0 | No PFAS detected |
| Knoebels Grove Park | PA4190398 | Elysburg | 4,000 | <MRL | <MRL | 0 | No PFAS detected |
| Kutztown Borough Water | PA3060041 | Kutztown | 14,200 | <MRL | <MRL | 0 | No PFAS detected |
| Lakeview Mobilehome Park | PA5100080 | Valencia | 44 | <MRL | <MRL | 0 | No PFAS detected |
| Lansford Coaldale Jt Water Aut | PA3130004 | Lansford | 9,300 | <MRL | <MRL | 0 | No PFAS detected |
| Latrobe Muni Auth | PA5650060 | Latrobe | 30,000 | <MRL | <MRL | 0 | No PFAS detected |
| Lawn Turnpike Plaza | PA7381001 | Glen Rock | 880 | <MRL | <MRL | 0 | No PFAS detected |
| Lebanon Water Auth | PA7380010 | Lebanon | 57,000 | <MRL | <MRL | 0 | No PFAS detected |
| Lehighton Water Authority | PA3130009 | Lehighton | 9,000 | <MRL | <MRL | 0 | No PFAS detected |
| Lower Bucks Co Joint Mun Auth | PA1090026 | Levittown | 63,007 | <MRL | <MRL | 0 | No PFAS detected |
| Lower Saucon Authority | PA3480027 | Bethlehem | 5,700 | <MRL | <MRL | 0 | No PFAS detected |
| Lutheran Home At Topton | PA3060094 | Topton | 410 | <MRL | <MRL | 0 | No PFAS detected |
| Mahanoy Twp Auth | PA3540011 | Mahanoy City | 5,584 | <MRL | <MRL | 0 | No PFAS detected |
| Manor Twp Jt Muni Auth | PA5030006 | Ford City | 6,744 | <MRL | <MRL | 0 | No PFAS detected |
| Mansfield Borough Mun Auth | PA2590038 | Mansfield | 4,100 | <MRL | <MRL | 0 | No PFAS detected |
| Maple Manor Mhp | PA5100071 | Slippery Rock | 37 | <MRL | <MRL | 0 | No PFAS detected |
| Masontown Muni Water Works | PA5260013 | Masontown | 3,841 | <MRL | <MRL | 0 | No PFAS detected |
| Mawc Sweeney Plant | PA5650032 | Greensburg | 143,000 | <MRL | <MRL | 0 | No PFAS detected |
| Mawc Yough Plant | PA5260036 | Greensburg | 133,000 | <MRL | <MRL | 0 | No PFAS detected |
| Meadville Area Water Authority | PA6200036 | Meadville | 17,339 | <MRL | <MRL | 0 | No PFAS detected |
| Meshoppen Borough Water Co | PA2660010 | Meshoppen | 563 | <MRL | <MRL | 0 | No PFAS detected |
| Middlesex Twp Muni Auth | PA7210063 | Carlisle | 3,527 | <MRL | <MRL | 0 | No PFAS detected |
| Mifflin Cnty Muni Auth | PA4440010 | Milroy | 29,432 | <MRL | <MRL | 0 | No PFAS detected |
| Mifflinburg Boro Water Dept | PA4600012 | Mifflinburg | 3,690 | <MRL | <MRL | 0 | No PFAS detected |
| Mifflintown Muni Auth | PA4340008 | Mifflintown | 4,450 | <MRL | <MRL | 0 | No PFAS detected |
| Millville Municipal Authority | PA4190017 | Millville | 969 | <MRL | <MRL | 0 | No PFAS detected |
| Minersville Municipal Water Au | PA3540035 | Minersville | 7,275 | <MRL | <MRL | 0 | No PFAS detected |
| Mountain Water Assn | PA5260032 | Fairchance | 3,856 | <MRL | <MRL | 0 | No PFAS detected |
| Mt Airy Casino & Resort | PA2450677 | Mount Pocono | 7,000 | <MRL | <MRL | 0 | No PFAS detected |
| Mt Union Municipal Auth | PA4310016 | Mount Union | 5,801 | <MRL | <MRL | 0 | No PFAS detected |
| Mun Auth Of Boro Of Bedford | PA4050002 | Bedford | 5,127 | <MRL | <MRL | 0 | No PFAS detected |
| Muni Auth Of Washington Twp | PA5260009 | Belle Vernon | 9,100 | <MRL | <MRL | 0 | No PFAS detected |
| Municipal Authority Of Corry | PA6250012 | Corry | 7,800 | <MRL | <MRL | 0 | No PFAS detected |
| Municipal Authority Sunbury | PA4490007 | Sunbury | 11,043 | <MRL | <MRL | 0 | No PFAS detected |
| Municipal Water Auth Adams Twp | PA5100141 | Mars | 8,700 | <MRL | <MRL | 0 | No PFAS detected |
| Myerstown Water Auth | PA7380025 | Myerstown | 9,500 | <MRL | <MRL | 0 | No PFAS detected |
| Neville Twp Water Dept | PA5020029 | Pittsburgh | 6,750 | <MRL | <MRL | 0 | No PFAS detected |
| New Kensington Muni Auth | PA5650070 | New Kensington | 47,800 | <MRL | <MRL | 0 | No PFAS detected |
| New Wilmington Boro Water Dept | PA6370035 | New Wilmington | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Newville Boro Water Auth | PA7210041 | Newville | 2,070 | <MRL | <MRL | 0 | No PFAS detected |
| North East Borough Water Dept | PA6250061 | North East | 4,601 | <MRL | <MRL | 0 | No PFAS detected |
| North Fayette Cnty Muni Auth | PA5260019 | Dunbar | 35,409 | <MRL | <MRL | 0 | No PFAS detected |
| Northampton Boro Muni Auth | PA3480057 | Northampton | 40,000 | <MRL | <MRL | 0 | No PFAS detected |
| Northern Cambria Muni Water | PA4110003 | Northern Cambria | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Oakmont Water Authority | PA5020036 | Oakmont | 39,901 | <MRL | <MRL | 0 | No PFAS detected |
| Oil City | PA6610023 | Oil City | 9,608 | <MRL | <MRL | 0 | No PFAS detected |
| Pa Amer Water Co Brownell | PA2359001 | Wilkes Barre | 12,560 | <MRL | <MRL | 0 | No PFAS detected |
| Pa Amer Water Co Susquehanna | PA2580024 | Clarks Summit | 4,230 | <MRL | <MRL | 0 | No PFAS detected |
| Pa Amer Water Co-Pittsburgh | PA5020039 | Elrama | 686,000 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Dilliner System | PA5300012 | Dilliner | 4,200 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Co Butler | PA5100012 | New Castle | 43,286 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Co Clarion | PA6160001 | New Castle | 10,372 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Co Kane | PA6420019 | New Castle | 5,725 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Co Warren | PA6620020 | Warren | 14,650 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Co-Indiana D | PA5320025 | New Castle | 22,360 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Kittanning | PA5030008 | New Castle | 4,499 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Punxsy | PA6330010 | New Castle | 8,419 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American Water Steelton | PA7220036 | Hummelstown | 6,428 | <MRL | <MRL | 0 | No PFAS detected |
| Pa American White Deer | PA4490023 | Mechanicsburg | 30,209 | <MRL | <MRL | 0 | No PFAS detected |
| Pa-American Water Co-Connellsv | PA5260022 | Uniontown | 11,425 | <MRL | <MRL | 0 | No PFAS detected |
| Pa-American Water- Uniontown | PA5260020 | Uniontown | 23,125 | <MRL | <MRL | 0 | No PFAS detected |
| Pa-American Water-Brownsville | PA5260005 | Mcmurry | 7,844 | <MRL | <MRL | 0 | No PFAS detected |
| Paw Ceasetown | PA2409002 | Scranton | 58,467 | <MRL | <MRL | 0 | No PFAS detected |
| Paw Huntsville | PA2409013 | Scranton | 11,987 | <MRL | <MRL | 0 | No PFAS detected |
| Paw Nesbitt | PA2409010 | Scranton | 52,640 | <MRL | <MRL | 0 | No PFAS detected |
| Paw Philipsburg | PA4140087 | Philipsburg | 20,865 | <MRL | <MRL | 0 | No PFAS detected |
| Paw Watres | PA2409011 | Scranton | 52,002 | <MRL | <MRL | 0 | No PFAS detected |
| Pawc Bangor | PA3480038 | Clarks Summit | 9,008 | <MRL | <MRL | 0 | No PFAS detected |
| Pawc Blue Mountain | PA3480055 | Clarks Summit | 23,763 | <MRL | <MRL | 0 | No PFAS detected |
| Pawc Penn Estates | PA2450065 | Tobyhanna | 4,300 | <MRL | <MRL | 0 | No PFAS detected |
| Pawc Saw Creek Estates | PA2520062 | Tobyhanna | 7,016 | <MRL | <MRL | 0 | No PFAS detected |
| Penn National Gaming | PA7220059 | Grantville | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Penn State Univ | PA4140095 | University Park | 37,000 | <MRL | <MRL | 0 | No PFAS detected |
| Penns Creek Municipal Auth | PA4550019 | Penns Creek | 725 | <MRL | <MRL | 0 | No PFAS detected |
| Pike Twp Municipal Authority | PA6170013 | Curwensville | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Pittsburgh Water & Sewer Auth | PA5020038 | Pittsburgh | 520,000 | <MRL | <MRL | 0 | No PFAS detected |
| Pleasant Valley Water Auth | PA5260006 | Connellsville | 3,630 | <MRL | <MRL | 0 | No PFAS detected |
| Plum Boro Muni Auth | PA5020041 | Pittsburgh | 27,500 | <MRL | <MRL | 0 | No PFAS detected |
| Portage Boro Muni Auth | PA4110027 | Portage | 6,500 | <MRL | <MRL | 0 | No PFAS detected |
| Red Lion Municipal Authority | PA7670086 | Red Lion | 15,882 | <MRL | <MRL | 0 | No PFAS detected |
| Reserve Twp Water Dept | PA5020047 | Pittsburgh | 3,204 | <MRL | <MRL | 0 | No PFAS detected |
| Richland Twp Water Authority | PA5020018 | Gibsonia | 10,190 | <MRL | <MRL | 0 | No PFAS detected |
| Ridgway Borough Water System | PA6240012 | Ridgway | 4,700 | <MRL | <MRL | 0 | No PFAS detected |
| Roamingwood Sewer And Water | PA2640025 | Lake Ariel | 3,775 | <MRL | <MRL | 0 | No PFAS detected |
| Robinson Twp Muni Auth | PA5020045 | Pittsburgh | 16,354 | <MRL | <MRL | 0 | No PFAS detected |
| Rockwood Boro Muni Auth | PA4560020 | Rockwood | 1,250 | <MRL | <MRL | 0 | No PFAS detected |
| Schuylkill Co Mun Auth | PA3540038 | Pottsville | 31,850 | <MRL | <MRL | 0 | No PFAS detected |
| Schuylkill Haven Boro Water | PA3540041 | Schuylkill Haven | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Selinsgrove Muni Auth | PA4550005 | Selinsgrove | 5,584 | <MRL | <MRL | 0 | No PFAS detected |
| Seneca & Cranberry Mall Dist | PA6610031 | Seneca | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Seven Springs Muni Auth | PA4560024 | Champion | 3,000 | <MRL | <MRL | 0 | No PFAS detected |
| Shippensburg Boro Water Auth | PA7210043 | Shippensburg | 17,800 | <MRL | <MRL | 0 | No PFAS detected |
| Shohola Falls Trails End Sys#2 | PA2520941 | Shohola | 3,933 | <MRL | <MRL | 0 | No PFAS detected |
| Skyview Gardens Heights Apts | PA7500030 | Olyphant | 186 | <MRL | <MRL | 0 | No PFAS detected |
| Slatington Borough Water Sys | PA3390039 | Slatington | 4,450 | <MRL | <MRL | 0 | No PFAS detected |
| Slippery Rock Muni Auth | PA5100079 | Slippery Rock | 15,778 | <MRL | <MRL | 0 | No PFAS detected |
| Somerset Boro Muni Water Auth | PA4560042 | Somerset | 6,309 | <MRL | <MRL | 0 | No PFAS detected |
| Somerset Twp Muni Auth Oakridg | PA4560046 | Somerset | 3,800 | <MRL | <MRL | 0 | No PFAS detected |
| Southwestern Cambria Cnty Auth | PA4110041 | Johnstown | 4,400 | <MRL | <MRL | 0 | No PFAS detected |
| Southwestern Pa Water Auth | PA5300017 | Jefferson | 40,200 | <MRL | <MRL | 0 | No PFAS detected |
| St Marys Area Water Auth | PA6240016 | Saint Marys | 19,588 | <MRL | <MRL | 0 | No PFAS detected |
| State College Boro Water Auth | PA4140096 | State College | 72,000 | <MRL | <MRL | 0 | No PFAS detected |
| Suburban Lock Haven Water Auth | PA4180049 | Mill Hall | 9,700 | <MRL | <MRL | 0 | No PFAS detected |
| Summit Township Water Authorit | PA6250090 | Erie | 12,500 | <MRL | <MRL | 0 | No PFAS detected |
| Tamaqua Area Water Authority | PA3540012 | Tamaqua | 8,000 | <MRL | <MRL | 0 | No PFAS detected |
| Tarentum Boro Water Dept | PA5020055 | Tarentum | 4,927 | <MRL | <MRL | 0 | No PFAS detected |
| Tobyhanna Army Depot | PA2450053 | Tobyhanna | 3,800 | <MRL | <MRL | 0 | No PFAS detected |
| Towanda Municipal Authority | PA2080029 | Towanda | 5,000 | <MRL | <MRL | 0 | No PFAS detected |
| Tri Cnty Jt Muni Auth | PA5630045 | Fredericktown | 10,100 | <MRL | <MRL | 0 | No PFAS detected |
| Tyrone Boro Water Auth | PA4070021 | Tyrone | 6,500 | <MRL | <MRL | 0 | No PFAS detected |
| Union City Municipal Authority | PA6250064 | Union City | 4,295 | <MRL | <MRL | 0 | No PFAS detected |
| Upmc Montefiore | PA5020806 | Pittsburgh | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Upmc Presbyterian | PA5020808 | Pittsburgh | 8,200 | <MRL | <MRL | 0 | No PFAS detected |
| Upmc Shadyside Hillman Campus | PA5020898 | Pittsburgh | 4,750 | <MRL | <MRL | 0 | No PFAS detected |
| Va Pittsburgh Ud | PA5020955 | Pittsburgh | 6,701 | <MRL | <MRL | 0 | No PFAS detected |
| Veolia Water Pa Inc Bloomsburg | PA4190008 | Bloomsburg | 29,382 | <MRL | <MRL | 0 | No PFAS detected |
| Washington Twp Muni Auth | PA7280026 | Waynesboro | 6,134 | <MRL | <MRL | 0 | No PFAS detected |
| Washington Twp Water System | PA6250092 | Edinboro | 797 | <MRL | <MRL | 0 | No PFAS detected |
| Waterford Municipal Authority | PA6250065 | Waterford | 1,700 | <MRL | <MRL | 0 | No PFAS detected |
| Wellsboro Municipal Authority | PA2590042 | Wellsboro | 8,225 | <MRL | <MRL | 0 | No PFAS detected |
| West Cnty Muni Auth-Mckeesport | PA5020025 | Greensburg | 32,644 | <MRL | <MRL | 0 | No PFAS detected |
| West View Water Authority | PA5020043 | Pittsburgh | 200,000 | <MRL | <MRL | 0 | No PFAS detected |
| Wilkinsburg-Penn Jt Water Auth | PA5020056 | Wilkinsburg | 125,000 | <MRL | <MRL | 0 | No PFAS detected |
| Windber Area Auth | PA4560013 | Windber | 9,463 | <MRL | <MRL | 0 | No PFAS detected |
| Womelsdorf Robesonia Jt Auth | PA3060080 | Newmanstown | 7,070 | <MRL | <MRL | 0 | No PFAS detected |
| York Water Co | PA7670100 | York | 206,762 | <MRL | <MRL | 0 | No PFAS detected |
Highest single result for each system; PFOA and PFOS in ppt (ng/L). Entry-point samples, not tap water; screening comparisons, not compliance determinations.