PFAS in Pennsylvania drinking water
EPA's final UCMR 5 data covers 390 public water systems in Pennsylvania, serving about 11 million people. PFAS turned up in 176 of them (45%). 82 averaged above at least one EPA limit at a sampling point, affecting about 4.2 million people.
Highest PFOA and PFOS averages among systems serving 1,000 or more: Emmaus Borough Public Water (19.5 / 127 ppt), Audubon Water Company (28.9 / 54.1 ppt), Palmerton Municipal Authority (39.8 / 33.8 ppt), Caernarvon Twp Auth (51.8 / 0.0 ppt) and Northampton Bucks CO Mun Auth (19.4 / 22.1 ppt).
Every tested system in Pennsylvania
Largest first. PFOA and PFOS columns show the average at each system's worst sampling point; EPA's limit for each is 4 ppt. Filter by name:
| Water system | People | PFOA | PFOS | PFAS found | Result |
|---|---|---|---|---|---|
| Philadelphia Water Department · Philadelphia | 1,600,000 | 7.3 | 5.0 | 8 | Above limit |
| Aqua Pa Main System · Bryn Mawr | 822,600 | 11.8 | 8.9 | 9 | Above limit |
| Pa Amer Water Co-pittsburgh · Elrama | 686,000 | - | - | 0 | None found |
| Pittsburgh Water & Sewer Auth · Pittsburgh | 520,000 | - | - | 0 | None found |
| Erie City Water Authority · Erie | 220,001 | - | - | 0 | None found |
| York Water CO · York | 206,762 | - | - | 0 | None found |
| West View Water Authority · Pittsburgh | 200,000 | - | - | 0 | None found |
| Mawc Sweeney Plant · Greensburg | 143,000 | - | - | 0 | None found |
| Chester Water Authority · Chester | 140,437 | 2.4 | - | 4 | Sample at limit |
| Pa Amer Water CO Lake Scranton · Wilkes Barre | 137,142 | 4.8 | 7.5 | 5 | Above limit |
| Mawc Yough Plant · Greensburg | 133,000 | - | - | 0 | None found |
| Wilkinsburg-penn Jt Water Auth · Wilkinsburg | 125,000 | - | - | 0 | None found |
| City of Lancaster · Lancaster | 120,000 | 14.6 | - | 6 | Above limit |
| Lca Allentown Division · Allentown | 118,000 | - | 1.1 | 4 | Sample at limit |
| City of Bethlehem · Bethlehem | 117,259 | - | - | 0 | None found |
| Suez Water · Harrisburg | 110,000 | - | - | 3 | Below limits |
| Pa American Water CO West · Mechanicsburg | 105,127 | 1.2 | 5.9 | 4 | Above limit |
| Easton Area Water System · Easton | 96,867 | - | - | 0 | None found |
| Reading Area Water Authority · Reading | 95,100 | 6.1 | - | 5 | Above limit |
| North Penn Water Authority · Lansdale | 91,941 | 4.7 | - | 3 | Above limit |
| Pa American Norristown · Norristown | 88,885 | - | - | 4 | Below limits |
| North Wales Water Authority · North Wales | 72,496 | 12.2 | 10.9 | 9 | Above limit |
| State College Boro Water Auth. · State College | 72,000 | - | - | 0 | None found |
| Capital Region Water · Harrisburg | 66,540 | - | - | 0 | None found |
| Lower Bucks CO Joint Mun Auth · Levittown | 63,007 | - | - | 0 | None found |
| Altoona Water Authority · Altoona | 62,500 | - | - | 0 | None found |
| Hampton Shaler Water Authority · Allison Park | 61,949 | - | - | 0 | None found |
| Aqua Pa Bensalem · Bryn Mawr | 59,001 | 6.9 | 4.8 | 8 | Above limit |
| Paw Ceasetown · Scranton | 58,467 | - | - | 0 | None found |
| Lebanon Water Auth · Lebanon | 57,000 | - | - | 0 | None found |
| Paw Nesbitt · Scranton | 52,640 | - | - | 0 | None found |
| Bcwsa Main Lower South · Warrington | 52,621 | 5.1 | 4.0 | 8 | Above limit |
| Paw Watres · Scranton | 52,002 | - | - | 0 | None found |
| Williamsport Mun Water Auth · Williamsport | 51,000 | - | 1.3 | 5 | Sample at limit |
| Pa Amer Water CO · Hummelstown | 50,200 | 1.1 | - | 5 | Sample at limit |
| Pa American Royersford · Spring City | 49,508 | 6.8 | 5.4 | 8 | Above limit |
| Greater Johnstown Wa Riverside · Johnstown | 49,500 | - | - | 0 | None found |
| Beaver Falls Muni Auth · Beaver Falls | 49,500 | 1.4 | 1.0 | 6 | Sample at limit |
| Aqua Pa West Chester · Bryn Mawr | 48,600 | 5.2 | - | 5 | Above limit |
| Monroeville Municipal Auth · Monroeville | 48,500 | - | - | 1 | Below limits |
| Aqua Pa Shenango Valley Wtp · Sharon | 48,000 | - | - | 1 | Below limits |
| New Kensington Muni Auth · New Kensington | 47,800 | - | - | 0 | None found |
| Lca Wlsa Central Division · Allentown | 47,693 | 4.3 | - | 5 | Above limit |
| Suez Mechanicsburg · Harrisburg | 45,013 | 3.6 | 6.2 | 6 | Above limit |
| Hca Hazleton Division · Hazleton | 45,000 | - | - | 0 | None found |
| Pa American Water CO Butler · New Castle | 43,286 | - | - | 0 | None found |
| Pa Amer Water CO New Castle · New Castle | 43,279 | - | - | 3 | Below limits |
| Aqua Pa Roaring Creek Division · Shamokin | 43,000 | - | - | 0 | None found |
| Cranberry Twp Wtp · Cranberry Twp | 42,000 | - | - | 0 | None found |
| Hanover Muni Water Works · Hanover | 40,900 | - | - | 1 | Below limits |
| Southwestern Pa Water Auth · Jefferson | 40,200 | - | - | 0 | None found |
| Northampton Boro Muni Auth · Northampton | 40,000 | - | - | 0 | None found |
| Oakmont Water Authority · Oakmont | 39,901 | - | - | 0 | None found |
| Newtown Artesian Water CO · Newtown | 38,500 | 11.3 | 6.5 | 6 | Above limit |
| Moon Twp Muni Auth · Moon Township | 38,000 | - | 7.6 | 3 | Above limit |
| Penn State Univ. · University Park | 37,000 | - | - | 0 | None found |
| Pa American Coatesville · Coatesville | 36,960 | - | - | 2 | Below limits |
| Northampton Bucks CO Mun Auth · Richboro | 36,750 | 19.4 | 22.1 | 9 | Above limit |
| Warminster Municipal Authority · Warminster | 36,000 | - | - | 2 | Below limits |
| Pottstown Borough Water Auth · Pottstown | 36,000 | - | - | 4 | Below limits |
| Aqua Pa Uwchlan · Bryn Mawr | 35,518 | 7.8 | 6.8 | 6 | Above limit |
| North Fayette Cnty Muni Auth · Dunbar | 35,409 | - | - | 0 | None found |
| Pa American Water CO Yardley · Yardley | 33,171 | 8.6 | 6.0 | 7 | Above limit |
| West Cnty Muni Auth-mckeesport · Greensburg | 32,644 | - | - | 0 | None found |
| Schuylkill CO Mun Auth · Pottsville | 31,850 | - | - | 0 | None found |
| Chambersburg Boro Water Sys · Chambersburg | 31,048 | - | - | 0 | None found |
| Pa American White Deer · Mechanicsburg | 30,209 | - | - | 0 | None found |
| Brodhead Creek Reg Water Auth · East Stroudsburg | 30,000 | - | - | 0 | None found |
| Latrobe Muni Auth · Latrobe | 30,000 | - | - | 0 | None found |
| Lewistown Boro Muni Auth · Milroy | 29,432 | - | - | 0 | None found |
| Suez Water Pa INC Bloomsburg · Bloomsburg | 29,382 | - | - | 0 | None found |
| Aqua Pa Bristol · Bryn Mawr | 28,727 | 1.1 | - | 3 | Sample at limit |
| Paw Penn District · Reading | 28,508 | 6.5 | 15.4 | 8 | Above limit |
| Guilford Water Auth · Chambersburg | 28,135 | - | - | 0 | None found |
| Plum Boro Muni Auth · Pittsburgh | 27,500 | - | - | 0 | None found |
| Auth of Boro of Charleroi · Charleroi | 27,000 | - | - | 0 | None found |
| Pittsburgh Intl Airport · Pittsburgh | 26,915 | - | 5.1 | 3 | Above limit |
| Horsham Water&sewer Authority · Horsham | 26,000 | 8.8 | 16.9 | 8 | Above limit |
| Carlisle Water Trmt Plt · Carlisle | 26,000 | 2.4 | 8.2 | 6 | Above limit |
| Columbia Water CO · Columbia | 25,200 | - | - | 0 | None found |
| Paw Glen Alsace Div · Mechanicsburg | 24,951 | 5.2 | 11.6 | 7 | Above limit |
| Ephrata Area Joint Authority · Ephrata | 24,500 | 4.7 | 2.3 | 6 | Above limit |
| Falls Twp Water & Sewer Dept · Fairless Hills | 24,400 | - | - | 2 | Below limits |
| Paw Blue Mountain Division · Clarks Summit | 23,763 | - | - | 0 | None found |
| Pa-american Water- Uniontown · Uniontown | 23,125 | - | - | 0 | None found |
| Highland S & W Auth Beaverdam · Johnstown | 22,617 | - | - | 0 | None found |
| Muhlenberg Twp Muni Auth · Reading | 22,400 | 8.6 | 10.9 | 9 | Above limit |
| Pa American Water Co-indiana D · New Castle | 22,360 | - | - | 0 | None found |
| Nwwa Warrington Township · North Wales | 21,588 | - | - | 1 | Below limits |
| Dover Twp Water Sys · Dover | 21,097 | 5.7 | 8.3 | 6 | Above limit |
| East Hempfield Water Auth · Landisville | 20,988 | 8.3 | 4.9 | 5 | Above limit |
| Paw Philipsburg · Philipsburg | 20,865 | - | - | 0 | None found |
| Ambler Boro Water Dept · Ambler | 20,000 | 14.1 | 12.6 | 10 | Above limit |
| St Marys Area Water Auth · Saint Marys | 19,588 | - | - | 0 | None found |
| Ambridge Water Auth · Ambridge | 19,500 | - | - | 0 | None found |
| Western Allegheny County Mun a · Oakdale | 19,031 | - | 3.3 | 2 | Sample at limit |
| Center Twp Water Auth · Aliquippa | 19,000 | - | - | 0 | None found |
| Elizabethtown Area Water · Elizabethtown | 19,000 | - | 5.0 | 5 | Above limit |
| Fox Chapel Auth · Pittsburgh | 18,500 | - | - | 0 | None found |
| Bradford City Water Authority · Bradford | 18,500 | - | - | 0 | None found |
| Pawc Pocono District · Tobyhanna | 17,860 | 5.5 | 4.3 | 5 | Above limit |
| Shippensburg Boro Water Auth · Shippensburg | 17,800 | - | - | 0 | None found |
| Meadville Area Water Authority · Meadville | 17,339 | - | - | 0 | None found |
| Pa Amer Water CO Ellwood Cty · New Castle | 17,200 | - | - | 4 | Below limits |
| Phoenixville Water Dept · Phoenixville | 16,599 | 4.0 | 2.4 | 7 | Above limit |
| Robinson Twp Muni Auth · Pittsburgh | 16,354 | - | - | 0 | None found |
| Upper Southampton Mun Auth · Southampton | 16,000 | 13.2 | 14.9 | 8 | Above limit |
| Highridge Water Auth · Blairsville | 16,000 | 1.1 | 1.1 | 6 | Sample at limit |
| Red Lion Municipal Authority · Red Lion | 15,882 | - | - | 0 | None found |
| Slippery Rock Muni Auth · Slippery Rock | 15,778 | - | - | 0 | None found |
| Mun Water Auth of Aliquippa · Aliquippa | 15,685 | - | - | 1 | Below limits |
| Aqua Pa Susquehanna Division · Sayre | 15,569 | - | - | 0 | None found |
| Pa American Water Berwick · Milton | 15,282 | 7.6 | 2.0 | 7 | Above limit |
| Mt Joy Boro Auth · Mount Joy | 15,261 | - | - | 1 | Below limits |
| Perkasie Regional Authority · Sellersville | 15,000 | 6.4 | 12.0 | 4 | Above limit |
| Creswell Heights Jt Auth · South Heights | 15,000 | - | - | 0 | None found |
| Warwick Twp Water & Sewer Auth · Jamison | 14,699 | 6.9 | 4.6 | 8 | Above limit |
| Pa American Water CO Warren · Warren | 14,650 | - | - | 0 | None found |
| Swt Main System · Allentown | 14,500 | 2.0 | - | 3 | Sample at limit |
| Kutztown Borough Water · Kutztown | 14,200 | - | - | 0 | None found |
| Emmaus Borough Public Water · Emmaus | 14,000 | 19.5 | 127 | 13 | Above limit |
| Clearfield Municipal Auth · Clearfield | 14,000 | - | - | 1 | Below limits |
| Huntingdon Boro Water Dept · Huntingdon | 13,776 | - | - | 0 | None found |
| Harrison Twp Water Auth · Natrona Heights | 13,411 | - | - | 0 | None found |
| Morrisville Munic Authority · Morrisville | 13,342 | - | - | 1 | Below limits |
| Shillington Muni Auth · Reading | 13,300 | - | - | 3 | Below limits |
| Boro of Waynesboro · Waynesboro | 13,200 | - | - | 0 | None found |
| Whitehall Twp Authority · Whitehall | 13,063 | 4.4 | 5.2 | 8 | Above limit |
| E Stroudsburg Boro Water Dept · East Stroudsburg | 13,000 | - | - | 0 | None found |
| Aqua Pa Hatboro · Bryn Mawr | 12,901 | 16.1 | 19.1 | 8 | Above limit |
| Quakertown Boro · Quakertown | 12,800 | 10.8 | 14.3 | 8 | Above limit |
| Bear Valley Joint Auth · St Thomas | 12,589 | - | - | 1 | Below limits |
| Pa Amer Water CO Brownell · Wilkes Barre | 12,560 | - | - | 0 | None found |
| Summit Township Water Authorit · Erie | 12,500 | - | - | 0 | None found |
| Gettysburg Muni Auth · Gettysburg | 12,425 | 6.8 | 12.7 | 5 | Above limit |
| Dallastown Yoe Water Auth · Dallastown | 12,300 | - | - | 0 | None found |
| Paw Huntsville · Scranton | 11,987 | - | - | 0 | None found |
| South Middleton Twp Water Auth · Boiling Springs | 11,695 | - | - | 1 | Below limits |
| Findlay Twp Municipal Auth · Clinton | 11,460 | - | - | 0 | None found |
| Pa-american Water Co-connellsv · Uniontown | 11,425 | - | - | 0 | None found |
| Aqua Pa Superior Main System · Bryn Mawr | 11,400 | 5.2 | 2.0 | 6 | Above limit |
| Humboldt Industrial Park · Hazleton | 11,243 | - | - | 2 | Below limits |
| Municipal Authority Sunbury · Sunbury | 11,043 | - | - | 0 | None found |
| Mt Penn Boro Muni Auth · Reading | 10,400 | - | 2.9 | 2 | Sample at limit |
| Pa American Water CO Clarion · New Castle | 10,372 | - | - | 0 | None found |
| Richland Twp Water Authority · Gibsonia | 10,190 | - | - | 0 | None found |
| Tri Cnty Jt Muni Auth · Fredericktown | 10,100 | - | - | 0 | None found |
| City of Lock Haven Water Dept · Lock Haven | 10,000 | - | - | 0 | None found |
| West Manchester Twp Auth · York | 9,960 | 3.1 | 8.7 | 6 | Above limit |
| Downingtown Water Authority · Downingtown | 9,900 | 1.1 | - | 4 | Sample at limit |
| Paw Crystal Lake · Scranton | 9,773 | - | - | 1 | Below limits |
| Suburban Lock Haven Water Auth · Mill Hall | 9,700 | - | - | 0 | None found |
| Icmsa Crooked Creek · Indiana | 9,638 | - | - | 0 | None found |
| Oil City · Oil City | 9,608 | - | - | 0 | None found |
| Suez Middletown · Middletown | 9,600 | 6.7 | 12.5 | 8 | Above limit |
| Shenandoah Mun Water Authority · Shamokin | 9,500 | - | - | 1 | Below limits |
| Bellefonte Borough Water Auth · Bellefonte | 9,500 | - | - | 0 | None found |
| Myerstown Water Auth · Myerstown | 9,500 | - | - | 0 | None found |
| Windber Area Auth · Windber | 9,463 | - | - | 0 | None found |
| Lititz Boro · Lititz | 9,397 | - | - | 1 | Below limits |
| Lansford Coaldale Jt Water Aut · Lansford | 9,300 | - | - | 0 | None found |
| Muni Auth of Washington Twp · Belle Vernon | 9,100 | - | - | 0 | None found |
| General Authority of Franklin · Franklin | 9,096 | - | - | 1 | Below limits |
| Paw Bangor District · Clarks Summit | 9,008 | - | - | 0 | None found |
| Lehighton Water Authority · Lehighton | 9,000 | - | - | 0 | None found |
| Dillsburg Area Authority · Dillsburg | 8,962 | 0.6 | 1.1 | 4 | Sample at limit |
| Aqua Pa Friendship · Bryn Mawr | 8,800 | 4.9 | 5.2 | 8 | Above limit |
| Doylestown Boro Water Dept · Doylestown | 8,700 | 14.0 | 11.2 | 10 | Above limit |
| Municipal Water Auth Adams Twp · Mars | 8,700 | - | - | 0 | None found |
| Dtma Main System · Doylestown | 8,655 | 13.5 | 11.8 | 8 | Above limit |
| Greenville Muni Water Auth · Sharon | 8,600 | - | - | 0 | None found |
| Warwick Twp Lititz Sys · Lititz | 8,561 | - | - | 3 | Below limits |
| Merck and CO INC · West Point | 8,550 | - | - | 1 | Below limits |
| Hollidaysburg Muni Auth · Hollidaysburg | 8,523 | - | - | 0 | None found |
| Salisbury Twp Water System · Allentown | 8,522 | 1.1 | 2.1 | 5 | Sample at limit |
| Wyomissing Boro Water System · Wyomissing | 8,500 | 2.3 | - | 5 | Sample at limit |
| Ebensburg Boro Muni Auth · Ebensburg | 8,500 | - | - | 0 | None found |
| New Holland Borough · New Holland | 8,490 | 2.5 | 6.1 | 7 | Above limit |
| Collegeville Trappe Joint Pwd · Trappe | 8,470 | 27.9 | 9.7 | 8 | Above limit |
| N Middleton Water Auth · Carlisle | 8,455 | 3.5 | 11.2 | 6 | Above limit |
| Pa American Water Punxsy · New Castle | 8,419 | - | - | 0 | None found |
| Houtzdale Municipal Authority · Houtzdale | 8,410 | - | - | 0 | None found |
| Hemlock Farms (main) · Lords Valley | 8,321 | - | - | 0 | None found |
| Wellsboro Municipal Authority · Wellsboro | 8,225 | - | - | 0 | None found |
| Audubon Water Company · Norristown | 8,200 | 28.9 | 54.1 | 9 | Above limit |
| Upmc Presbyterian · Pittsburgh | 8,200 | - | - | 0 | None found |
| Aqua Pa Spring Run · Bryn Mawr | 8,151 | 6.4 | 2.2 | 9 | Above limit |
| Boyertown Muni Auth · Boyertown | 8,000 | - | - | 0 | None found |
| Tamaqua Area Water Authority · Tamaqua | 8,000 | - | - | 0 | None found |
| Kittanning Suburb Jt Water Aut · Adrian | 8,000 | - | - | 0 | None found |
| Millersville Univ · Millersville | 7,950 | 5.2 | 5.2 | 7 | Above limit |
| Wernersville Muni Water Auth · Wernersville | 7,920 | 2.0 | - | 4 | Sample at limit |
| Brighton Twp Muni Auth · Beaver | 7,920 | - | - | 4 | Sample at limit |
| Grove City Boro Water Dept · Grove City | 7,871 | - | - | 0 | None found |
| Pa-american Water-brownsville · Mcmurry | 7,844 | - | - | 0 | None found |
| Suez Water Pa Bethel · Harrisburg | 7,809 | 9.8 | - | 7 | Above limit |
| Conemaugh Twp Muni Auth · Davidsville | 7,800 | - | - | 1 | Below limits |
| Municipal Authority of Corry · Corry | 7,800 | - | - | 0 | None found |
| Edinboro Water Authority · Edinboro | 7,800 | - | - | 0 | None found |
| City of Dubois Water Depart · Dubois | 7,794 | - | - | 0 | None found |
| Edgeworth Boro Muni Auth · Leetsdale | 7,781 | - | - | 0 | None found |
| Upper Leacock Township · Leola | 7,734 | 7.5 | 9.2 | 8 | Above limit |
| Telford Borough Authority · Telford | 7,700 | 14.4 | 14.0 | 9 | Above limit |
| Suez Water Pa Dallas · Harrisburg | 7,563 | 0.3 | 3.4 | 5 | Sample at limit |
| Maidencreek Twp Water Auth · Blandon | 7,505 | - | - | 2 | Below limits |
| Upper Saucon Twp Water Supply · Center Valley | 7,300 | - | - | 1 | Below limits |
| Littlestown Boro · Littlestown | 7,300 | 0.6 | 1.7 | 6 | Sample at limit |
| Minersville Municipal Water Au · Minersville | 7,275 | - | - | 0 | None found |
| Blythe Twp Municipal Authority · New Philadelphia | 7,100 | - | - | 0 | None found |
| Womelsdorf Robesonia Jt Auth · Newmanstown | 7,070 | - | - | 0 | None found |
| Pawc Saw Creek Estates · Bushkill | 7,016 | - | - | 0 | None found |
| Mt Airy Casino & Resort · Mount Pocono | 7,000 | - | - | 0 | None found |
| Palmerton Municipal Authority · Palmerton | 7,000 | 39.8 | 33.8 | 8 | Above limit |
| Indian Creek Valley Water Auth · Indian Head | 7,000 | - | - | 0 | None found |
| Richland Twp Water Authority · Quakertown | 6,800 | 6.7 | 8.2 | 7 | Above limit |
| Sewickley Boro Water Auth · Sewickley | 6,800 | - | - | 5 | Below limits |
| Neville Twp Water Dept · Pittsburgh | 6,750 | - | - | 0 | None found |
| Manor Twp Jt Muni Auth · Ford City | 6,744 | - | - | 0 | None found |
| East Cocalico Township · Denver | 6,735 | 0.4 | 0.9 | 5 | Sample at limit |
| Va Pittsburgh UD · Pittsburgh | 6,701 | - | - | 0 | None found |
| Manheim Area Water & Sewer Aut · Manheim | 6,701 | 11.5 | 7.3 | 6 | Above limit |
| Kline Township Mun Authority · Mcadoo | 6,700 | - | - | 0 | None found |
| Harmony Boro Water Auth · Harmony | 6,669 | - | - | 1 | Below limits |
| Jersey Shore Area Jnt Wat Auth · Jersey Shore | 6,600 | - | - | 0 | None found |
| Catasauqua Mun Water Works · Catasauqua | 6,598 | - | - | 2 | Below limits |
| Aqua Pa Fawn Lake Forest · Honesdale | 6,533 | - | - | 1 | Below limits |
| Tyrone Boro Water Auth · Tyrone | 6,500 | - | - | 0 | None found |
| Portage Boro Muni Auth · Portage | 6,500 | - | - | 0 | None found |
| Monaca Boro Water Dept · Monaca | 6,500 | - | - | 2 | Sample at limit |
| Derry Boro Muni Auth · Derry | 6,500 | - | - | 1 | Below limits |
| Outlet Shops at Gettysburg · Gettysburg | 6,500 | 4.3 | 2.2 | 4 | Above limit |
| Suez Newberry System · Harrisburg | 6,480 | 1.2 | 2.6 | 8 | Sample at limit |
| Geisinger Medical Center · Danville | 6,442 | - | - | 0 | None found |
| Pa American Water Steelton · Hummelstown | 6,428 | - | - | 0 | None found |
| Kennett Square Mun Water Works · Kennett Square | 6,328 | 5.9 | 4.5 | 8 | Above limit |
| Somerset Boro Muni Water Auth · Somerset | 6,309 | - | - | 0 | None found |
| Brookville Municipal Auth · Brookville | 6,220 | - | - | 1 | Below limits |
| East Petersburg Borough · East Petersburg | 6,215 | 6.2 | 13.4 | 7 | Above limit |
| East Penn Mfg CO · Lyon Station | 6,170 | - | - | 0 | None found |
| Titusville Municipal Water · Titusville | 6,146 | - | 5.0 | 1 | Above limit |
| Washington Twp Muni Auth · Waynesboro | 6,134 | - | - | 0 | None found |
| Schuylkill Haven Boro Water · Schuylkill Haven | 6,000 | - | - | 0 | None found |
| College Twp. Water Authority · State College | 6,000 | - | - | 2 | Below limits |
| Belle Vernon Boro Muni Auth · Belle Vernon | 6,000 | - | - | 0 | None found |
| Penn National Gaming · Grantville | 6,000 | - | - | 0 | None found |
| Aqua Pa Chalfont · Bryn Mawr | 5,900 | 6.9 | 9.5 | 8 | Above limit |
| Buffalo Twp Mun Auth Freeport · Sarver | 5,849 | - | - | 0 | None found |
| Albion Borough · Albion | 5,842 | - | - | 0 | None found |
| Coraopolis Water & Sewer Auth · Coraopolis | 5,804 | 1.6 | 7.9 | 7 | Above limit |
| Mt Union Municipal Auth · Mount Union | 5,801 | - | - | 0 | None found |
| Hellertown Borough Authority · Hellertown | 5,800 | - | - | 2 | Below limits |
| Beaver Boro Muni Auth · Beaver | 5,799 | 6.7 | 4.8 | 8 | Above limit |
| Hilltown Twp Water&sewer Auth · Sellersville | 5,770 | 7.7 | 6.7 | 5 | Above limit |
| Pa American Water CO Kane · New Castle | 5,725 | - | - | 0 | None found |
| Lower Saucon Authority · Bethlehem | 5,700 | - | - | 0 | None found |
| Mahanoy Twp Auth · Mahanoy City | 5,584 | - | - | 0 | None found |
| Selinsgrove Mun Waterworks · Selinsgrove | 5,584 | - | - | 0 | None found |
| Pa Am Water Co-frackville Dist · Milton | 5,583 | - | 7.5 | 4 | Above limit |
| Duquesne Water Dept · Duquesne | 5,565 | - | - | 0 | None found |
| Aqua Pa Water CO Honesdale · White Haven | 5,500 | - | - | 0 | None found |
| Greencastle Area Water Auth · Greencastle | 5,500 | - | - | 0 | None found |
| Birdsboro Muni Water Auth · Birdsboro | 5,353 | - | - | 0 | None found |
| Tunkhannock Boro Munic Auth · Tunkhannock | 5,349 | 0.6 | 1.5 | 4 | Sample at limit |
| Oxford Borough · Oxford | 5,280 | 2.1 | - | 5 | Sample at limit |
| Stewartstown Boro Water Auth · Stewartstown | 5,206 | 4.5 | 2.1 | 5 | Above limit |
| Schwenksville Borough Auth · Schwenksville | 5,200 | 1.8 | 4.4 | 3 | Above limit |
| Mun Auth of Boro of Bedford · Bedford | 5,127 | - | - | 0 | None found |
| Aqua Pa Flying Hills Wa Sys · Bryn Mawr | 5,100 | 1.9 | 2.1 | 4 | Sample at limit |
| Sharpsville Boro Water CO · Sharpsville | 5,029 | - | - | 1 | Below limits |
| Towanda Municipal Authority · Towanda | 5,000 | - | - | 0 | None found |
| Danville Municipal Water Auth · Danville | 4,992 | - | - | 2 | Below limits |
| Hamburg Muni Water&sewer Auth · Hamburg | 4,990 | - | - | 0 | None found |
| Montoursville Water Company · Montoursville | 4,983 | 3.3 | 6.0 | 5 | Above limit |
| Tarentum Boro Water Dept · Tarentum | 4,927 | - | - | 0 | None found |
| Central Indiana CO Water Auth · Homer City | 4,920 | - | - | 0 | None found |
| Upmc Magee Womens Hospital · Pittsburgh | 4,900 | - | - | 1 | Below limits |
| London Grove Twp Mun Auth · West Grove | 4,770 | - | - | 4 | Below limits |
| Buckingham Twp Cold Spring · Buckingham | 4,760 | 20.1 | 17.4 | 7 | Above limit |
| Upmc Shadyside Hillman Campus · Pittsburgh | 4,750 | - | - | 0 | None found |
| Shrewsbury Borough · Shrewsbury | 4,727 | 1.8 | 1.4 | 8 | Sample at limit |
| Ridgway Borough Water System · Ridgway | 4,700 | - | - | 0 | None found |
| Fawn Frazer Jt Water Auth · Natrona Heights | 4,650 | - | - | 1 | Below limits |
| Freeland Boro Muni Water Auth · Freeland | 4,610 | 1.5 | 3.5 | 5 | Sample at limit |
| North East Borough Water Dept · North East | 4,601 | - | - | 0 | None found |
| Upper Hanover Water Authority · East Greenville | 4,600 | 3.1 | 2.8 | 4 | Sample at limit |
| Millersburg Water Auth · Millersburg | 4,600 | 0.8 | 4.9 | 4 | Above limit |
| North Sewickley Mun Water Auth · Beaver Falls | 4,578 | - | - | 4 | Below limits |
| Northern Cambria Muni Water · Northern Cambria | 4,500 | - | - | 0 | None found |
| Upmc Montefiore · Pittsburgh | 4,500 | - | - | 0 | None found |
| Pike Twp Municipal Authority · Curwensville | 4,500 | - | - | 0 | None found |
| Fairview Twp Water Authority · Fairview | 4,500 | - | - | 0 | None found |
| New Wilmington Boro Water Dept · New Wilmington | 4,500 | - | - | 0 | None found |
| Seneca & Cranberry Mall Dist · Seneca | 4,500 | - | - | 0 | None found |
| Pa-american Water Co-kittannig · New Castle | 4,499 | - | - | 0 | None found |
| Milford Twp Water Authority · Quakertown | 4,497 | - | - | 2 | Below limits |
| New Freedom Boro Water Auth · New Freedom | 4,464 | - | - | 5 | Below limits |
| Slatington Borough Water Sys · Slatington | 4,450 | - | - | 0 | None found |
| Mifflintown Muni Auth · Mifflintown | 4,450 | - | - | 0 | None found |
| Southwestern Cambria Cnty Auth · Johnstown | 4,400 | - | - | 0 | None found |
| Franklin CO Gen Auth · York | 4,400 | - | - | 0 | None found |
| Brockway Boro Municipal Auth · Brockway | 4,384 | - | - | 0 | None found |
| West Earl Water Authority · Brownstown | 4,327 | - | - | 1 | Below limits |
| Aqua Pa Jenks Twp Wtp · Sharon | 4,320 | - | - | 0 | None found |
| Penn Estates Utilities Incorp · Mechanicsburg | 4,300 | - | - | 0 | None found |
| West Reading Boro Water · West Reading | 4,300 | 1.1 | - | 4 | Sample at limit |
| Union City Municipal Authority · Union City | 4,295 | - | - | 0 | None found |
| New Sewickley Twp Muni Auth · Rochester | 4,276 | - | - | 4 | Below limits |
| Caernarvon Twp Auth · Morgantown | 4,245 | 51.8 | - | 6 | Above limit |
| Pa Amer Water CO Susquehanna · Wilkes Barre | 4,230 | - | - | 0 | None found |
| Fleetwood Boro Water System · Fleetwood | 4,218 | - | - | 0 | None found |
| Ashland Area Water Authority · Ashland | 4,200 | - | 14.1 | 4 | Above limit |
| East Dunkard Water Authority · Dilliner | 4,200 | - | - | 0 | None found |
| Akron Borough · Akron | 4,200 | 2.5 | 2.2 | 7 | Sample at limit |
| Aqua Pa INC Treasure Lake Div · Sharon | 4,155 | - | - | 0 | None found |
| Zelienople Boro · Zelienople | 4,123 | 1.1 | - | 5 | Sample at limit |
| Mansfield Borough Mun Auth · Mansfield | 4,100 | - | - | 0 | None found |
| Wrightsville Boro Muni Auth · Wrightsville | 4,076 | - | - | 1 | Below limits |
| East Donegal Twp Municipal Aut · Columbia | 4,048 | - | - | 2 | Below limits |
| Blairsville Muni Auth · Blairsville | 4,023 | - | - | 0 | None found |
| Blue Mtn Coop Tilden Ind Park · Hamburg | 4,000 | - | - | 2 | Below limits |
| Knoebels Grove Park · Elysburg | 4,000 | - | - | 0 | None found |
| New Oxford Munci Auth · New Oxford | 3,963 | 0.7 | 1.6 | 6 | Sample at limit |
| Baden Boro Water Dept · Baden | 3,948 | - | - | 0 | None found |
| Shohola Falls Trails End Sys#2 · Shohola | 3,933 | - | - | 0 | None found |
| Hegins Hubley Authority · Valley View | 3,870 | - | - | 0 | None found |
| Denver Boro · Denver | 3,861 | - | - | 2 | Below limits |
| Mountain Water Assn · Fairchance | 3,856 | - | - | 0 | None found |
| Masontown Muni Water Works · Masontown | 3,841 | - | - | 0 | None found |
| Tobyhanna Army Depot · Tobyhanna | 3,800 | - | - | 0 | None found |
| Somerset Twp Muni Auth Oakridg · Somerset | 3,800 | - | - | 0 | None found |
| Roamingwood Sewer and Water · Lake Ariel | 3,775 | - | - | 0 | None found |
| Masonic Homes · Elizabethtown | 3,707 | 2.4 | - | 3 | Sample at limit |
| Brackenridge Boro Water Dept · Brackenridge | 3,700 | - | - | 0 | None found |
| Cooper Twp Municipal Auth · Morrisdale | 3,700 | - | - | 0 | None found |
| Mifflinburg Boro Water Dept · Mifflinburg | 3,690 | - | - | 0 | None found |
| Pleasant Valley Water Auth · Connellsville | 3,630 | - | - | 0 | None found |
| Aqua Pa Perkiomen Township · Bryn Mawr | 3,600 | 4.2 | 4.6 | 7 | Above limit |
| Middlesex Twp Muni Auth · Carlisle | 3,527 | - | - | 0 | None found |
| Radisson Valley Forge Hotel · King of Prussia | 3,500 | 2.7 | 2.0 | 5 | Sample at limit |
| Eagle Lake Community Assoc · Gouldsboro | 3,500 | 2.0 | - | 5 | Sample at limit |
| State Correctional Inst · Camp Hill | 3,500 | - | 3.5 | 4 | Sample at limit |
| Springdale Boro Water Dept · Springdale | 3,405 | - | - | 1 | Below limits |
| Fairview Twp Water Auth Dist 3 · Fairview | 3,320 | - | - | 0 | None found |
| Girard Boro Water Dept · Girard | 3,301 | - | - | 0 | None found |
| Spring Twp Water Authority · Bellefonte | 3,300 | - | - | 1 | Below limits |
| Emporium Water Company · Emporium | 3,300 | - | - | 0 | None found |
| Reserve Twp Water Dept · Pittsburgh | 3,204 | - | - | 0 | None found |
| Glendale Valley Municipal Auth · Flinton | 3,200 | - | - | 0 | None found |
| Coudersport Boro Authority · Coudersport | 3,166 | - | - | 0 | None found |
| Nanty Glo Water Auth · Nanty Glo | 3,152 | - | - | 1 | Below limits |
| Seven Springs Muni Auth · Champion | 3,000 | - | - | 0 | None found |
| Lca North Whitehall Division · Allentown | 2,910 | - | - | 1 | Below limits |
| Rockview · Bellefonte | 2,850 | - | 2.6 | 1 | Sample at limit |
| Bangor Area School Complex · Bangor | 2,700 | - | - | 1 | Below limits |
| Plumstead Northern System · Pipersville | 2,605 | 7.0 | 6.9 | 6 | Above limit |
| Mt Hope Est & Winery · Manheim | 2,500 | 2.1 | - | 3 | Sample at limit |
| Hastings Muni Auth · Hastings | 2,100 | - | - | 0 | None found |
| Newville Boro Water Auth · Newville | 2,070 | - | - | 0 | None found |
| Centre Hall Boro Water Dept · Centre Hall | 1,900 | - | - | 0 | None found |
| E Armstrong Cnty Muni Auth · Elderton | 1,875 | - | - | 0 | None found |
| Waterford Municipal Authority · Waterford | 1,700 | - | - | 0 | None found |
| Aqua Pa Lake Latonka Wtp · Sharon | 1,600 | - | - | 0 | None found |
| Manheim Auto Auction · Manheim | 1,426 | - | 2.6 | 2 | Sample at limit |
| Rockwood Boro Muni Auth · Rockwood | 1,250 | - | - | 0 | None found |
| Ellsworth Boro Water Dept · Ellsworth | 1,250 | - | - | 0 | None found |
| Croyle Twp Water Auth · Summerhill | 989 | - | - | 0 | None found |
| Millville Municipal Authority · Millville | 969 | - | - | 0 | None found |
| Lawn Turnpike Plaza · Glen Rock | 880 | - | - | 0 | None found |
| Buck Hill Falls Water CO · Buck Hill Falls | 876 | - | - | 0 | None found |
| Lehman Jackson Elementary · Lehman | 875 | 2.6 | 5.2 | 3 | Above limit |
| Conneaut Lake Borough Wtp · Conneaut Lake | 870 | - | - | 0 | None found |
| Fishertown Water Assn · Fishertown | 801 | - | - | 0 | None found |
| Hickory Hills Mhc · Bath | 800 | - | - | 0 | None found |
| Washington Twp Water System · Edinboro | 797 | - | - | 0 | None found |
| Paradise Stream Resort Well 2 · Mount Pocono | 774 | - | 4.8 | 1 | Above limit |
| Penns Creek Municipal Auth · Penns Creek | 725 | - | - | 0 | None found |
| Carbon Plaza Mall · Branchburg | 650 | - | - | 0 | None found |
| Eei Meadows Complex · Dallas | 628 | - | 5.4 | 2 | Above limit |
| Fannett Metal Sch Dist · Willow Hill | 600 | - | - | 0 | None found |
| Meshoppen Borough Water CO · Meshoppen | 563 | - | - | 0 | None found |
| Lutheran Home at Topton · Topton | 410 | - | - | 0 | None found |
| Foxcroft Manor Mobile Home Pk · Williamsport | 200 | - | - | 0 | None found |
| Skyview Gardens Heights Apts · Olyphant | 186 | - | - | 0 | None found |
| Creative Kids East Child Dev · Orefield | 175 | - | - | 0 | None found |
| Jamie Hollanders · New Hope | 150 | 12.6 | 9.6 | 7 | Above limit |
| Evitts Creek Water CO · Bedford | 100 | - | - | 0 | None found |
| Cabot Oil and Gas · Montrose | 50 | - | - | 0 | None found |
| Lakeview Mobilehome Park · Valencia | 44 | - | - | 0 | None found |
| Maple Manor Mhp · Slippery Rock | 37 | - | - | 0 | None found |
| Bucks County Community College | 6.4 | - | 1 | Above limit |
On a private well in Pennsylvania?
EPA's program only covers public systems. Private wells are never part of UCMR 5, so the only way to know is to test. Our well testing guide covers which lab tests to order, and the best well water systems covers what to install once you have results.
Cite this page
Well & Tap. "PFAS in Pennsylvania drinking water: results for 390 systems." Data: U.S. EPA UCMR 5, final release August 2026. https://wellandtap.com/pfas/pennsylvania/
Source: EPA UCMR 5 final occurrence data (August 2026); population from EPA SDWIS. Method.