| West Hills Area Wpca STP | Kittanning | 0.6 |
| Towanda Muni Auth | Towanda | 0.6 |
| New Hanover Twp Auth STP | Gilbertsville | 0.6 |
| Mainland STP | Harleysville | 0.59 |
| Ford City Boro Muni Sew Disposal Auth WWTP | Ford City | 0.59 |
| Chestnut Ridge Area WWTP | New Paris | 0.59 |
| Greenfield Twp Municipal Authority STP | Claysburg | 0.59 |
| Kennett Square Boro WWTP | Kennett Square | 0.58 |
| Mount Union Borough | Mount Union | 0.58 |
| Cresson Boro WWTP | Cresson | 0.58 |
| Albion Boro WWTP | Albion | 0.57 |
| Porter-Tower Joint Municipal Auth | Tower City | 0.57 |
| Millersville STP | Millersville | 0.57 |
| Blairsville Boro STP | Blairsville | 0.57 |
| West Hanover Twp STP | Harrisburg | 0.54 |
| Maidencreek Twp STP | Reading | 0.53 |
| Scma Deer Lake WWTP | Orwigsburg | 0.52 |
| Newberry Twp Goldsboro STP | York Haven | 0.52 |
| Freeland Boro Mun Auth | Freeland | 0.52 |
| Fairchance Georges STP | Smithfield | 0.52 |
| Pleasant Unity STP | Greensburg | 0.52 |
| Conyngham Boro Auth WWTP | Sugarloaf | 0.5 |
| Donaldsons Crossrds STP | Canonsburg | 0.5 |
| Upper Stonycreek Jma | Hooversville | 0.49 |
| S Fork Reg WWTP | South Fork | 0.49 |
| Orwigsburg Mun Sew Auth | Orwigsburg | 0.49 |
| Fish Creek STP | Jamison | 0.49 |
| Marienville STP | Marienville | 0.49 |
| Springfield Twp Hollow Cr STP | York | 0.49 |
| Fleetwood Boro STP | Fleetwood | 0.48 |
| Littlestown STP | Littlestown | 0.48 |
| Rochester Area Joint Sewer Aut | Rochester | 0.48 |
| Brown Twp STP | Reedsville | 0.47 |
| Darragh STP | Greensburg | 0.47 |
| Big Run STP | Masontown | 0.46 |
| Nanty Glo STP | Nanty Glo | 0.46 |
| Slippery Rock Muni Auth | Slippery Rock | 0.45 |
| Evans City Borough-Likens Run WTP | Evans City | 0.45 |
| Pen Argyl Municipal Authority WWTP | Pen Argyl | 0.45 |
| Belle Vernon STP | Belle Vernon | 0.44 |
| Northwestern Lanc Co STP | Manheim | 0.44 |
| Mawc Furnace Run | Ligonier | 0.44 |
| California Boro STP | California | 0.43 |
| Kittanning Boro STP | Kittanning | 0.43 |
| Jenner Area Jt Sew Auth Boswell Plt | Boswell | 0.43 |
| Conneaut Lake Jt Mun Auth STP | Conneaut Lake | 0.43 |
| Shoemakersville STP | Shoemakersville | 0.43 |
| Boyertown Boro STP | Gilbertsville | 0.43 |
| Waynesburg STP | Waynesburg | 0.42 |
| Johnsonburg STP | Johnsonburg | 0.42 |
| Martinsburg STP | Martinsburg | 0.42 |
| Big Sewickley WWTP | Baden | 0.42 |
| Mid-Centre Cnty Auth | Milesburg | 0.41 |
| Jim Thorpe Borough Water East-Germantown | Jim Thorpe | 0.41 |
| Roaring Spring STP | Roaring Spring | 0.41 |
| Mid-Cameron Authority | Emporium | 0.41 |
| Racoon Creek WWTP | Atlasburg | 0.41 |
| Kinzua Road STP Kane | Kane | 0.41 |
| Conewago Twp STP | York | 0.4 |
| Saegertown Area STP | Saegertown | 0.4 |
| Duncannon Muni Water-Well 5 And &7 | Duncannon | 0.4 |
| Mercer Mun STP | Mercer | 0.4 |
| Bridgeport Boro STP | Bridgeport | 0.4 |
| W Elizabeth STP | West Elizabeth | 0.39 |
| Wrightsville STP | Wrightsville | 0.39 |
| Ellport Boro STP | Ellwood City | 0.39 |
| West Newton Boro | West Newton | 0.39 |
| Northern Lancaster Cnty Auth Fivepointville STP | Denver | 0.38 |
| Homer City STP | Homer City | 0.38 |
| Twin Boroughs STP | Mifflin | 0.38 |
| Leetsdale Mun Auth STP | Leetsdale | 0.38 |
| Avondale Boro STP | Avondale | 0.37 |
| Potato Garden Run STP | Clinton | 0.37 |
| Leesport Borough Authority WWTP | Leesport | 0.37 |
| Arcadia Sys | Heilwood | 0.37 |
| Beaver Borough STP | Beaver | 0.37 |
| Conway Boro STP | Conway | 0.36 |
| Oley Twp STP | Oley | 0.36 |
| Freedom Twp - STP | Duncansville | 0.36 |
| Patton Borough STP | Patton | 0.36 |
| Harleysville STP | Harleysville | 0.35 |
| W Branch Sew Auth STP | Northern Cambria | 0.35 |
| Carmichaels Cumberland Jt Sew Auth WWTP | Carmichaels | 0.35 |
| Reynoldsville STP | Reynoldsville | 0.35 |
| New England STP | West Mifflin | 0.35 |
| Elkland Boro Auth | Elkland | 0.35 |
| Earl Twp STP | New Holland | 0.35 |
| Glen Rock STP | Glen Rock | 0.35 |
| Montrose Boro - WWTP | Montrose | 0.34 |
| Scma Tremont WWTP | Tremont | 0.34 |
| Spring City Boro STP | Spring City | 0.34 |
| Meyersdale STP | Meyersdale | 0.34 |
| Burnham STP | Burnham | 0.33 |
| New Eagle Boro STP | New Eagle | 0.33 |
| Kbm Regional Authority | Mcadoo | 0.33 |
| Cambridge Area Jt Auth STP | Cambridge Springs | 0.32 |
| Everett STP | Everett | 0.32 |
| Scma Gordon WWTP | Gordon | 0.32 |
| Lrbsa/ Clinton Twp Plant | Browndale | 0.32 |
| Smethport STP | Smethport | 0.31 |
| White Deer Twp Muncipal Auth | New Columbia | 0.31 |
| Mt Holly Springs STP | Mt Holly Springs | 0.31 |
| Newport Boro Water Auth-Well 1 | Newport | 0.31 |
| Bath Boro Auth | Bath | 0.31 |
| Greencastle STP | Greencastle | 0.31 |
| 14 Mile Run STP | Latrobe | 0.3 |
| Mid Mon Vly Wpca STP | Allenport | 0.3 |
| Hallstead Great Bend Jt Sew Auth | Great Bend | 0.3 |
| Quarryville STP | New Providence | 0.29 |
| Perryopolis STP | Perryopolis | 0.29 |
| Mcconnellsburg STP | Mcconnellsburg | 0.29 |
| Port Allegany STP | Port Allegany | 0.29 |
| Newville Boro STP | Newville | 0.28 |
| Lake City Muni STP | Lake City | 0.28 |
| Ridley Creek STP | West Chester | 0.28 |
| Cressona Boro Auth STP | Cressona | 0.28 |
| Sci Somerset STP | Somerset | 0.27 |
| Shenango Twp STP | West Middlesex | 0.27 |
| Bally STP | Bally | 0.27 |
| Dauphin STP | Dauphin | 0.27 |
| Salisbury Twp Gap STP | Gap | 0.27 |
| Marysville STP | Marysville | 0.27 |
| Lemoyne STP | Lemoyne | 0.26 |
| Northern Lebanon Cnty Jonestown STP | Jonestown | 0.26 |
| Stewartstown STP | Stewartstown | 0.26 |
| Wells Creek STP | Friedens | 0.26 |
| Shade Ctl City Jt Auth STP | Central City | 0.26 |
| Middle Smithfield Twp WWTP | East Stroudsburg | 0.26 |
| Kings Plaza STP | Warrington | 0.26 |
| Berlin Boro STP | Berlin | 0.25 |
| Caernarvon Twp STP | Morgantown | 0.25 |
| Bedminster WWTF | Perkasie | 0.25 |
| Moon Run STP | Mckees Rocks | 0.25 |
| Borough Of Palmerton | Palmerton | 0.25 |
| Cumberland Twp South STP | Gettysburg | 0.25 |
| Honey Brook Township STP | Honey Brook | 0.25 |
| Leacock Twp STP | Intercourse | 0.25 |
| Nesquehoning Regional STP | Nesquehoning | 0.25 |
| Curwensville Muni Auth Sew Sys STP | Curwensville | 0.25 |
| Kulpmont-Marion Hghts Joint Muni Auth | Kulpmont | 0.25 |
| Blossburg Municipal Authority Wastewater Treatment Plant | Blossburg | 0.24 |
| Beavertown Mun Auth WWTP | Beavertown | 0.24 |
| Troy Water Deptartment-Treatment Building | Troy | 0.24 |
| Dunbar Twp Muni Auth STP | Dunbar | 0.24 |
| Womelsdorf STP | Womelsdorf | 0.24 |
| Weatherly Borough | Weatherly | 0.24 |
| Bernville STP | Womelsdorf | 0.24 |
| Westtown-Chester Creek STP | Westchester | 0.23 |
| West Earl Twp Ws | Brownstown | 0.23 |
| Granville Twp - Strodes Mills STP | Lewistown | 0.23 |
| Saxton STP | Saxton | 0.22 |
| Middleburg Boro WWTP | Middleburg | 0.22 |
| Berks-Montgomery Morysville STP | Gilbertsville | 0.22 |
| Bonneauville STP | Gettysburg | 0.22 |
| Sheffield Twp STP | Sheffield | 0.22 |
| Hyndman STP | Hyndman | 0.22 |
| Dublin Boro STP | Bedminster | 0.22 |
| Girard Mun Sew | Girard | 0.21 |
| Northwest Crawford Cnty Sew Auth STP | Springboro | 0.21 |
| Redbank Valley STP | New Bethlehem | 0.21 |
| East Hanover Twp Dairy Ln STP | Grantville | 0.21 |
| Fairfield STP | Fairfield | 0.21 |
| Mcclure Muni Auth Sew Sys STP | Mcclure | 0.21 |
| St Thomas Twp STP | Chambersburg | 0.21 |
| Tunkhannock Boro Mun Auth | Tunkhannock | 0.21 |
| Avonmore Boro STP | Avonmore | 0.21 |
| Uwchlan Twp Eagleview STP | Exton | 0.2 |
| South Coatesville STP | Coatesville | 0.2 |
| Lyons Boro Mun Auth WTP | Lyons | 0.2 |
| Smithfield Sewer Authority STP | East Stroudsburg | 0.2 |
| Tri-Boro Mun Auth | Susquehanna | 0.2 |
| Thompsontown STP | Thompsontown | 0.2 |
| Waterford Borough STP | Waterford | 0.2 |
| Freeport Boro STP | Freeport | 0.2 |
| Williamstown Boro STP | Williamstown | 0.2 |
| Veterans Center STP | Pipersville | 0.2 |
| North Codorus Twp STP | York | 0.2 |
| Luzerne Twp Sew Auth WWTF | Labelle | 0.19 |
| Washington Twp STP | Barto | 0.19 |
| Biglerville STP | Biglerville | 0.19 |
| Mercersburg STP | Mercersburg | 0.19 |
| Moscow Sew Auth STP | Moscow | 0.19 |
| Tradesville WWTP | Warrington | 0.19 |
| Lakeview Jt Sew Auth WWTP | Sandy Lake | 0.19 |
| Dover Boro STP | Dover | 0.19 |
| Brockway Area Sewage Authority | Brockway | 0.18 |
| New Bedford STP | Pulaski | 0.18 |
| Bessemer Boro STP | Bessemer | 0.18 |
| West Grove Boro STP | West Grove | 0.18 |
| Elmhurst Township Sewer Auth | Elmhurst | 0.18 |
| Port Royal STP | Port Royal | 0.18 |
| Waverly Township WWTP | Waverly | 0.18 |
| Sewickley STP | Herminie | 0.17 |
| Tire Hill WWTP | Johnstown | 0.17 |
| Loysville STP | Loysville | 0.17 |
| Elizabethville STP | Elizabethville | 0.17 |
| Lykens Boro Auth - STP | Lykens | 0.17 |
| Macoby Creek STP | Pennsburg | 0.17 |
| North East Boro WTP | North East | 0.17 |
| County Of Berks WWTP | Leesport | 0.17 |