States / Pennsylvania / Drinking Water
Drinking Water Systems in Pennsylvania
1,851 community water systems serving about 11,467,074 people. 821 have a health-based violation on record since 2015, 61 of them unresolved.
SystemHealth-based violations (2015+)
POINT MARION BORO · Fayette County · 1,110 served · surface water58 (16 unresolved)
HARSHBARGER MHP · Beaver County · 90 served · groundwater under surface influence31 (8 unresolved)
FREDONIA BORO · Mercer County · 443 served · groundwater16 (6 unresolved)
OVERPECK MHP · Wyoming County · 25 served · groundwater6 (6 unresolved)
SPROUL WATER ASSN · Blair County · 180 served · groundwater19 (5 unresolved)
TRI CNTY JT MUNI AUTH · Washington County · 10,100 served · surface water330 (4 unresolved)
SALEM HEIGHTS ESTATE · Wayne County · 62 served · groundwater73 (4 unresolved)
GAP VIEW COMMUNITY MHP · Northampton County · 50 served · groundwater23 (4 unresolved)
SUNSET RIDGE REHAB CTR · Columbia County · 60 served · groundwater12 (4 unresolved)
COUNTRY PINES MHP · Luzerne County · 280 served · groundwater6 (4 unresolved)
WONDERVIEW WATER CO · Columbia County · 350 served · groundwater4 (4 unresolved)
EDGEWOOD MOBILE HOME PARK · Lackawanna County · 117 served · groundwater4 (4 unresolved)
GRANDVIEW ACRES MHP · Mercer County · 70 served · groundwater4 (4 unresolved)
PINECREST VILLAGE MHP · Lycoming County · 195 served · groundwater under surface influence115 (3 unresolved)
BIG BASS LAKE WATER ASSOC. · Wayne County · 130 served · groundwater21 (3 unresolved)
PAUPACK POINT WATER ASSOC · Wayne County · 180 served · groundwater15 (3 unresolved)
EAGLE RIDGE PERSONAL CARE HOME · Clinton County · 37 served · groundwater15 (3 unresolved)
MID LAKES DEVELOPMENT · Carbon County · 490 served · groundwater12 (3 unresolved)
POCONO RANCH LANDS SECT 4 · Pike County · 225 served · groundwater11 (3 unresolved)
WALLENPAUPACK LAKE ESTATES · Wayne County · 2,200 served · groundwater7 (3 unresolved)
MESHOPPEN BOROUGH WATER CO · Wyoming County · 563 served · groundwater6 (3 unresolved)
BUHL COMMUNITY WATER COMPANY · Mercer County · 2,227 served · groundwater3 (3 unresolved)
LAKE ARTHUR ESTATES · Butler County · 460 served · groundwater3 (3 unresolved)
JULIA RIBAUDO EXTENDED CARE · Wayne County · 200 served · groundwater3 (3 unresolved)
MAPLE LANE ESTATES · Luzerne County · 200 served · groundwater3 (3 unresolved)
ROCKY RIDGE MOBILE HOME PARK · Monroe County · 171 served · groundwater3 (3 unresolved)
MORRISVILLE MUNIC AUTHORITY · Bucks County · 13,342 served · surface water90 (2 unresolved)
ALBERT GALLATIN MUNI AUTH · Fayette County · 2,695 served · surface water57 (2 unresolved)
D WATER COMPANY · Carbon County · 150 served · groundwater56 (2 unresolved)
SKYVIEW GARDENS HEIGHTS APTS · Perry County · 186 served · groundwater51 (2 unresolved)
S R WATER · Carbon County · 500 served · groundwater29 (2 unresolved)
A B C #2 MOBILE HOME PARK · Lycoming County · 75 served · groundwater27 (2 unresolved)
HILLTOP VILLAGE ASSOCIATION · Wayne County · 86 served · groundwater26 (2 unresolved)
MASONS MOBILE CITY · Warren County · 140 served · groundwater17 (2 unresolved)
TIOGA MOBILE HOME COMMUNITY · Tioga County · 200 served · groundwater16 (2 unresolved)
OAKWOOD LAKE VILLAGE MHP · Wyoming County · 273 served · groundwater14 (2 unresolved)
CARBON COUNTY CORRECTIONAL FAC · Carbon County · 125 served · groundwater13 (2 unresolved)
MARY D COMMUNITY ASSOCIATION · Schuylkill County · 250 served · surface water10 (2 unresolved)
RALSTON AREA JOINT AUTHORITY · Lycoming County · 400 served · groundwater9 (2 unresolved)
BRADFORD CITY WATER AUTHORITY · McKean County · 18,500 served · surface water8 (2 unresolved)
EDGEWOOD AT COUNTRYSIDE APTS · Monroe County · 80 served · groundwater7 (2 unresolved)
TOWNSHIP OF SPRINGDALE · Allegheny County · 1,600 served · purchased surface water6 (2 unresolved)
COOKS MHP · Wyoming County · 92 served · groundwater5 (2 unresolved)
MEADOWBROOK MOBILE HOMES · Northampton County · 60 served · groundwater5 (2 unresolved)
BEDMINSTER MUN AUTH · Bucks County · 3,042 served · groundwater2 (2 unresolved)
CAMBRIA TWP WATER AUTH · Cambria County · 1,000 served · surface water2 (2 unresolved)
FOXBURG AREA WATER & SEWER AUT · Clarion County · 925 served · groundwater2 (2 unresolved)
ORANGEVILLE MUNICIPAL WATER AU · Columbia County · 508 served · groundwater2 (2 unresolved)
REGENCY WOODS MHP · Cumberland County · 450 served · groundwater2 (2 unresolved)
HOLLY ACRES MHP · Erie County · 315 served · groundwater2 (2 unresolved)
HUEFNER SPRING WATER · Clarion County · 300 served · groundwater2 (2 unresolved)
CONNEAUT LAKE PARK WATER · Crawford County · 250 served · groundwater2 (2 unresolved)
COUNTRY ESTATES MHP · Venango County · 90 served · groundwater2 (2 unresolved)
DALLAS MHP · Luzerne County · 86 served · groundwater2 (2 unresolved)
EVERGREEN MHC LLC · Luzerne County · 80 served · groundwater2 (2 unresolved)
CREEKSIDE MANOR M H P · Carbon County · 63 served · groundwater2 (2 unresolved)
HILLSIDE REST HOME INC · Adams County · 58 served · groundwater2 (2 unresolved)
GLASGOW MUNICIPAL WATER WORKS · Beaver County · 51 served · groundwater2 (2 unresolved)
LAKE RAYLEAN WATER ASSOCIATION · Susquehanna County · 47 served · groundwater2 (2 unresolved)
OLYMPIC VILLAGE · Lycoming County · 98 served · groundwater8 (1 unresolved)
NORTHRIDGE AT CAMELBACK · Monroe County · 330 served · groundwater4 (1 unresolved)
CONFLUENCE BORO MUNI AUTH · Somerset County · 645 served · groundwater229
ICMSA CHERRYTREE · Indiana County · 400 served · surface water191
JACKSON TWP WATER AUTH · Cambria County · 4,236 served · purchased surface water130
PITHOLE WATER ASSOCIATION · McKean County · 87 served · groundwater128
PARKER AREA WATER AUTH · Armstrong County · 900 served · surface water127
EAST TAYLOR MUNI AUTH · Cambria County · 3,152 served · purchased surface water126
ICMSA ROSSITER · Indiana County · 500 served · surface water121
EBENSBURG BORO MUNI AUTH · Cambria County · 8,500 served · surface water118
BLAWNOX BORO WATER DEPT · Allegheny County · 2,200 served · purchased surface water107
MIDLAND BORO MUNI AUTH · Beaver County · 3,100 served · surface water101
ECHO VALLEY MHP · Chester County · 60 served · groundwater101
PA AMERICAN WATER STEELTON · Dauphin County · 6,428 served · surface water100
NELSON TOWNSHIP AUTHORITY · Tioga County · 300 served · surface water81
BCWSA MAIN LOWER SOUTH · Bucks County · 52,621 served · purchased surface water80
CENTERVILLE MUNI WATER AUTH · Bedford County · 75 served · surface water75
ICMSA ARCADIA · Indiana County · 65 served · surface water74
RBE WATER ASSOCIATION INC · Lackawanna County · 175 served · groundwater71
FALLS CREEK BORO MUN AUTH · Jefferson County · 1,440 served · purchased surface water70
JOHNSONBURG MUNICIPAL AUTH · Elk County · 2,413 served · surface water68
CEDAR MANOR MHP · Dauphin County · 432 served · groundwater68
FREEBURG MUNICIPAL AUTHORITY · Snyder County · 685 served · groundwater under surface influence65
IMPERIAL MOBILE HOME PARK · Chester County · 151 served · groundwater65
SOUTHWEST WARREN CO MUN AUTH · Warren County · 1,040 served · surface water63
WESTOVER MUNICIPAL AUTHORITY · Clearfield County · 456 served · surface water61
COBBS LAKE PRESERVE · Wayne County · 200 served · groundwater58
LAUREL WOODS MOBILE HOME PARK · Pike County · 70 served · groundwater58
WOODHAVEN MOBILE HOME PARK · Erie County · 350 served · surface water57
CLARENDON ACRES WATER CO · Wyoming County · 280 served · groundwater57
POLK CENTER · Venango County · 1,058 served · surface water55
GREEN ACRES MOBILE HOME PARK · Northampton County · 48 served · groundwater51
BLACKLICK VALLEY MUNI AUTH · Cambria County · 1,650 served · purchased surface water49
ARNOLD APARTMENTS · Wayne County · 44 served · groundwater48
HILLSIDE MOBILE HOME PARK · Lackawanna County · 99 served · groundwater44
BIRDSBORO MUNI WATER AUTH · Berks County · 5,353 served · surface water43
CLIFF VIEW MHP · York County · 330 served · groundwater42
DONEGAL TOWNSHIP · Washington County · 820 served · purchased surface water41
MARSTELLER COMM WATER AUTH · Cambria County · 75 served · groundwater41
PA AMERICAN DILLINER SYSTEM · Greene County · 4,200 served · surface water40
WEST CARROLL W AUTH BAKERTON · Cambria County · 670 served · surface water39
PINEDALE MOBILE HOME PARK · Crawford County · 80 served · groundwater39
REDBANK VALLEY MUN AUTH · Clarion County · 3,150 served · surface water38
LAUREL LANE DEVELOPMENT ASSOC · Pike County · 179 served · groundwater38
FOX GLEN GARDENS · Monroe County · 95 served · groundwater38
E STROUDSBURG BORO WATER DEPT · Monroe County · 13,000 served · surface water37
NANTY GLO WATER AUTH · Cambria County · 3,152 served · surface water37
EDEN GLEN VILLAGE · Lancaster County · 80 served · groundwater37
TAMAQUA AREA WATER AUTHORITY · Schuylkill County · 8,000 served · surface water36
AQUA PA CLARENDON · Warren County · 840 served · groundwater36
PINE MANOR MHP · Dauphin County · 302 served · groundwater36
BUCKINGHAM VLY REHAB & NURSING · Bucks County · 190 served · groundwater36
YERKES WATER ASSOCIATION · Montgomery County · 165 served · groundwater36
CHOCONUT CREEK APARTMENTS · Susquehanna County · 50 served · groundwater36
HARMONY BORO WATER AUTH · Butler County · 6,669 served · surface water35
REYNOLDS WATER COMPANY · Mercer County · 2,370 served · surface water35
LAKE OF THE PINES · Monroe County · 1,200 served · groundwater35
WALMAR MANOR MHP · York County · 400 served · groundwater35
VILLAGE OF MTN HEIGHTS MHP · Wyoming County · 76 served · groundwater34
GENESEE TWP WATER AUTHORITY · Potter County · 450 served · groundwater33
COVENTRY TERRACE · Chester County · 250 served · groundwater33
LAKE WALLENPAUPACK ESTATES POA · Pike County · 204 served · groundwater33
OAK RUN VILLAGE · Monroe County · 60 served · groundwater33
AUTH OF BORO OF CHARLEROI · Washington County · 27,000 served · surface water32
PIKE TWP MUNICIPAL AUTHORITY · Clearfield County · 4,500 served · surface water32
MEADOWS MOBILE HOME PARK · Westmoreland County · 250 served · groundwater32
BRINTON MANOR · Delaware County · 196 served · groundwater32
SITTLERS MHP · Berks County · 89 served · groundwater32
MT IDY MOBILE HOME PARK · Chester County · 80 served · groundwater32
NATHANS HAMLET · Carbon County · 60 served · groundwater32
LYKENS BORO AUTH · Dauphin County · 3,220 served · surface water31
ST PETERSBURG MUNICIPAL WATER · Clarion County · 465 served · surface water31
NEW OXFORD MANOR MHP · Adams County · 350 served · groundwater31
VICTORIA VILLAGE TOWNHOUSE · Monroe County · 99 served · groundwater31
COYLESVILLE COURT · Butler County · 76 served · groundwater31
O YES APTS · Lebanon County · 35 served · groundwater31
ELLSWORTH BORO WATER DEPT · Washington County · 1,250 served · purchased surface water30
SOUTH BUFFALO TWP MUNI AUTH · Armstrong County · 1,230 served · purchased surface water30
MUNI AUTH OF WASHINGTON TWP · Fayette County · 9,100 served · surface water29
ROTE MUTUAL WATER ASSOCIATION · Clinton County · 481 served · groundwater under surface influence29
SHIPPINGPORT BORO WATER SYS · Beaver County · 222 served · purchased surface water29
HARMONY ESTATES MHP · Cumberland County · 80 served · groundwater29
ICMSA CROOKED CREEK · Indiana County · 9,638 served · surface water28
BUFFALO TWP MUN AUTH FREEPORT · Armstrong County · 5,849 served · surface water28
WESTERN CLINTON CO MUN AUTH · Clinton County · 2,610 served · surface water28
TRI VALLEY ELDO LAKE DIVISION · Monroe County · 310 served · groundwater28
DOVER BORO WATER SYS · York County · 1,900 served · groundwater27
MAHONING TWP MUNI AUTH · Armstrong County · 900 served · purchased surface water27
GLUCO LODGE · Monroe County · 65 served · groundwater27
LAZY BROOK MANAGEMENT · Susquehanna County · 51 served · groundwater27
HAWTHORN REDBANK REDBANK MA · Clarion County · 1,500 served · surface water26
GREATER JOHNSTOWN WA SALTLICK · Cambria County · 170 served · surface water26
CAMPHILL VILLAGE KIMBERTON HLS · Chester County · 100 served · groundwater26
CRESCENT LAKE NORTH COMM ASSOC · Pike County · 93 served · groundwater26
ESTATES AT HAMILTON HILLS · Monroe County · 84 served · groundwater26
DUQUESNE WATER DEPT · Allegheny County · 5,565 served · purchased surface water25
BLUE HERON HOMEOWNERS ASSOC · Carbon County · 450 served · groundwater25
COCALICO MANOR MHP · Lancaster County · 92 served · groundwater25
MAGNOLIA PERSONAL CARE CENTER · Juniata County · 80 served · groundwater25
PATHWAYS · Delaware County · 53 served · groundwater25
ROCK SPRING WATER CO · Centre County · 1,212 served · groundwater24
TRUMBAUERSVILLE MUN WATERWORKS · Bucks County · 974 served · groundwater24
ADDISON AREA WATER AUTH · Somerset County · 284 served · groundwater24
HILLSIDE TERRACE MHP · Bedford County · 240 served · groundwater24
VALI-VIEW MOBILE HOME PARK · Lycoming County · 150 served · groundwater24
COUNTRY VIEW MANOR YWC · York County · 125 served · groundwater24
MAPLE ROCK TRAILER COURT · Monroe County · 100 served · groundwater24
MOUNTAIN VIEW VILLAGE · Monroe County · 100 served · groundwater24
GREEN MOUNTAIN ESTATES · Monroe County · 108 served · groundwater23
ESTATES AT STONE ROW · Monroe County · 48 served · groundwater23
TITUSVILLE ESTATES · Crawford County · 44 served · groundwater23
DUNCANNON MUNI WATER · Perry County · 2,000 served · groundwater22
MAPLE PARK GARDEN APARTMENTS · Pike County · 75 served · groundwater22
WYNWOOD HOUSE AT SALEM HILL · Centre County · 32 served · groundwater22
SOLDIER WATER SYSTEM · Jefferson County · 250 served · purchased surface water21
STATE LINE MUNI SVCS AUTH · Fayette County · 95 served · purchased surface water21
STONEY RUN APT · York County · 40 served · groundwater21
MAPLEWOOD HEIGHTS · Wyoming County · 32 served · groundwater21
HEMLOCK FARMS (MAIN) · Pike County · 8,321 served · groundwater20
PATTON BORO WATER DEPT · Cambria County · 1,805 served · groundwater20
LCWSA HALLS STATION · Lycoming County · 518 served · groundwater20
DARWAY HEALTHCARE & REHAB · Sullivan County · 100 served · groundwater20
WARWICK WATER WORKS · Chester County · 98 served · groundwater20
ST MARY OF PROVIDENCE CENTER · Chester County · 75 served · groundwater20
QUAKER VIEW MOBILE HOME PARK · Bucks County · 60 served · groundwater20
TIMBER RISE LLC · Monroe County · 60 served · groundwater20
HELLERS MOBILE HOME PARK · Columbia County · 21 served · groundwater20
MEYERSDALE MUNI AUTH · Somerset County · 2,566 served · surface water19
LANDIS HOMES · Lancaster County · 850 served · purchased surface water19
NIS HOLLOW ESTATES · Carbon County · 265 served · groundwater19
HAPPY ACRES DEVELOPMENT · Lackawanna County · 168 served · groundwater19
FRITZINGERTOWN SR LIV COMM #1 · Luzerne County · 66 served · groundwater19
PENNY PARK · Lancaster County · 51 served · groundwater19
PLEASANT VALLEY WATER AUTH · Fayette County · 3,630 served · purchased surface water18
GALLITZIN BORO WATER AUTH · Cambria County · 3,130 served · surface water18
MERCERSBURG MUNI WATER AUTH · Franklin County · 2,350 served · surface water18
VILLAGE AT SAFE HARBOR · Lancaster County · 120 served · groundwater18
PLEASANT HALL MANOR · Franklin County · 50 served · groundwater18
POCO APARTMENTS (LOWER) · Monroe County · 48 served · groundwater18
DOE RUN MOBILE HOME PARK · Chester County · 29 served · groundwater18
SUBURBAN LOCK HAVEN WATER AUTH · Clinton County · 9,700 served · purchased surface water17
FAWN FRAZER JT WATER AUTH · Allegheny County · 4,650 served · purchased surface water17
MASONTOWN MUNI WATER WORKS · Fayette County · 3,841 served · purchased surface water17
ULYSSES MUNICIPAL AUTHORITY · Potter County · 640 served · groundwater17
DEER LAKE CITIZENS ASSOC · Schuylkill County · 380 served · groundwater17
BROOKMONT HEALTH CARE CENTER · Monroe County · 229 served · groundwater17
MAGIC CHEF MHP · Lancaster County · 32 served · groundwater17
WARWICK TWP LITITZ SYS · Lancaster County · 8,561 served16
WALNUTPORT AUTHORITY · Northampton County · 3,000 served · groundwater under surface influence16
MANSFIELD UNIVERSITY · Tioga County · 3,000 served · surface water16
ONTELAUNEE TOWNSHIP · Berks County · 2,598 served · purchased surface water16
IRVONA MUNICIPAL AUTHORITY · Clearfield County · 1,980 served · surface water16
EAST BRADY WATER SYSTEM · Clarion County · 1,040 served · groundwater16
HERITAGE VILLAGE MHP · Northampton County · 400 served · groundwater16
HILLSDALE NURSING AND REHAB · Indiana County · 100 served · groundwater16
COZY OAKS MHP · Mercer County · 65 served · groundwater16
SK PROPERTIES LP MISTY MEADOWS · Berks County · 60 served · groundwater16
ROUTE 322 MOBILE HOME PARK · Mercer County · 53 served · groundwater16
SULLIVAN TRAIL VILLAGE · Monroe County · 45 served · groundwater16
PINE GARDEN APARTMENTS · Westmoreland County · 40 served · groundwater16
RIDGEVIEW MHP & APTS · Lebanon County · 30 served · groundwater16
SHIPPENSBURG BORO WATER AUTH · Cumberland County · 17,800 served · surface water15
BRADDOCK BORO WATER AUTH · Allegheny County · 1,708 served · purchased surface water15
WATERFORD MUNICIPAL AUTHORITY · Erie County · 1,700 served · groundwater15
AVONWHEEL ESTATE MHP · Chester County · 300 served · groundwater15
CAMBRIDGE AREA JOINT AUTH · Crawford County · 225 served · purchased surface water15
MILLBROOK 5R 7 8 · Pike County · 169 served · groundwater15
ROBINWOOD VILLAGE · Monroe County · 70 served · groundwater15
READING AREA WATER AUTHORITY · Berks County · 95,100 served · surface water14
MONROEVILLE MUNICIPAL AUTH · Allegheny County · 48,500 served · purchased surface water14
N MIDDLETON WATER AUTH · Cumberland County · 8,455 served · surface water14
MONACA BORO WATER DEPT · Beaver County · 6,500 served · groundwater14
PENN ESTATES UTILITIES INCORP · Monroe County · 4,300 served · groundwater14
PLUM CREEK MUNICIPAL AUTH · Schuylkill County · 2,500 served · groundwater14
MOUNT ROCK MANOR · Franklin County · 350 served · groundwater14
BLOSS TOWNSHIP WATERWORKS · Tioga County · 325 served · groundwater14
HAINES WOODWARD MUNICIPAL AUTH · Centre County · 140 served · groundwater14
HIMALAYAN INSTITUTE · Wayne County · 124 served · groundwater14
MILFORD SENIOR CARE · Pike County · 110 served · groundwater14
GROFFDALE MOBILEHOME PARK · Lancaster County · 98 served · groundwater14
DEER CHASE MHP · Perry County · 84 served · groundwater14
PAW WINOLA · Wyoming County · 63 served · groundwater14
TOWN HOMES AT MAPLE LANE · Monroe County · 60 served · groundwater14
CROSBY WATER ASSOCIATION · McKean County · 56 served · groundwater14
DEER RUN MOBILE HOME PARK · Monroe County · 54 served · groundwater14
NWWA WARRINGTON TOWNSHIP · Bucks County · 21,588 served · purchased surface water13
HIGHRIDGE WATER AUTH · Westmoreland County · 16,000 served · surface water13
BLAIRSVILLE MUNI AUTH · Indiana County · 4,023 served · surface water13
ROAMINGWOOD SEWER AND WATER · Wayne County · 3,775 served · groundwater13
EAST DEER TWP WATER DEPT · Allegheny County · 2,000 served · purchased surface water13
JAY TWP WATER AUTHORITY · Elk County · 1,131 served · surface water13
PIKE COUNTY CORRECTIONAL FACIL · Pike County · 500 served · groundwater13
BROOKSIDE MOBILEHOME PARK · Lancaster County · 176 served · groundwater13
SUNSET MOBILE HOME PARK · Lackawanna County · 150 served · groundwater13
PLEASANT VIEW MHP · Luzerne County · 99 served · groundwater13
ZEIGLER MHP · York County · 46 served · groundwater13
CHERRY HILL AT HOLIDAY PARK · Wayne County · 41 served · groundwater13
RURAL SOLUTION W3 LLC · Crawford County · 38 served · groundwater13
AMES TRAILER COURT · Crawford County · 34 served · groundwater13
DEL-AIRE MOBILE HOME PARK · Northampton County · 33 served · groundwater13
CALN MOBILE HOME PARK · Chester County · 30 served · groundwater13
VEOLIA MECHANICSBURG · Cumberland County · 45,013 served · surface water12
COLUMBIA WATER CO · Lancaster County · 25,200 served · surface water12
HIGHLAND S & W AUTH BEAVERDAM · Cambria County · 22,617 served · surface water12
CENTER TWP WATER AUTH · Beaver County · 19,000 served · surface water12
SUMMIT TOWNSHIP WATER AUTHORIT · Erie County · 12,500 served · purchased surface water12
AQUA SHENANDOAH · Schuylkill County · 9,500 served · surface water12
PORTAGE BORO MUNI AUTH · Cambria County · 6,500 served · surface water12
TARENTUM BORO WATER DEPT · Allegheny County · 4,927 served · surface water12
UNION CITY MUNICIPAL AUTHORITY · Erie County · 4,295 served · surface water12
GLENDALE VALLEY MUNICIPAL AUTH · Cambria County · 3,200 served · purchased groundwater12
ELKLAND BORO WATER AUTHORITY · Tioga County · 2,660 served · groundwater12
MT MORRIS WATER & SEWAGE AUTH · Greene County · 1,500 served · purchased surface water12
WESTFIELD BOROUGH WATERWORKS · Tioga County · 1,300 served · groundwater12
PLUMSTEAD TWP SUMMER HILL MEAD · Bucks County · 1,284 served · groundwater12
CHRISTIANA MUNI WATER AUTH · Lancaster County · 1,100 served · groundwater12
MARIANNA MUNI WATER WORKS · Washington County · 480 served · purchased surface water12
STONY BROOK CIRCLE MHP · Columbia County · 272 served · groundwater12
BENTON HILLS MHP · Lackawanna County · 150 served · groundwater12
STONEYHILL MHP · Lancaster County · 124 served · groundwater12
MILLER MANOR HOMEOWNERS ASSOC · Northampton County · 90 served · groundwater12
DEERHAVEN WHITE BEAUTY VIEW ES · Pike County · 53 served · groundwater12
MEADOWS AT BETHEL MHP · Berks County · 50 served · groundwater12
SCENIC MOBILE HOME PARK · Mercer County · 50 served · groundwater12
LENAPE HILLS TRAILER PARK · Berks County · 44 served · groundwater12
WARWICK MOBILE HOME PARK · Chester County · 40 served · groundwater12
LIBERTY PARK · Susquehanna County · 40 served · groundwater12
SHADY BACK ACRES MHP · Dauphin County · 40 served · groundwater12
CRALEY MHP · York County · 35 served · groundwater12
WEC INTERNATIONAL · Montgomery County · 25 served · groundwater12
SWT MAIN SYSTEM · Lehigh County · 14,500 served · purchased surface water11
MANHEIM AREA WATER & SEWER AUT · Lancaster County · 6,701 served · groundwater under surface influence11
MT UNION MUNICIPAL AUTH · Huntingdon County · 5,801 served · surface water11
NORTH EAST BOROUGH WATER DEPT · Erie County · 4,601 served · surface water11
BENTLEYVILLE MUNI AUTH · Washington County · 2,600 served · purchased surface water11
US ARMY GARRISON · Cumberland County · 1,700 served · groundwater11
LAKE WALLENPAUPACK SANDY SHORE · Wayne County · 499 served · groundwater11
TOBY WATER · Elk County · 440 served · purchased surface water11
COGAN VALLEY MOBILE HOME PARK · Lycoming County · 250 served · groundwater11
MOUNTAIN MANOR COMMUNITY · Monroe County · 187 served · groundwater11
MUSHROOM FARM · Monroe County · 172 served · groundwater11
BARTON COURT · Monroe County · 118 served · groundwater11
BRUSH CREEK COUNTRY ESTATES · Bedford County · 98 served · groundwater11
HI VIEW MOBILE HOME PARK · Lackawanna County · 97 served · groundwater11
SPRINGFIELD VILLAGE · Erie County · 80 served · groundwater11
FRANKLIN MOBILE HOME VILLAGE · Butler County · 80 served · groundwater11
PINEHURST MANOR · Lancaster County · 47 served · groundwater11
HYDETOWN PARK EAST · Crawford County · 29 served · groundwater11
SOUTHWESTERN PA WATER AUTH · Greene County · 40,200 served · surface water10
AQUA PA SUSQUEHANNA DIVISION · Bradford County · 15,569 served · groundwater10
NEW SEWICKLEY TWP MUNI AUTH · Beaver County · 4,276 served · purchased surface water10
MONTGOMERY WATER AUTHORITY · Lycoming County · 2,700 served · groundwater10
CLARKS SUMMIT STATE HOSPITAL · Lackawanna County · 747 served · groundwater10
NEW ENTERPRISE WATER ASSN · Bedford County · 500 served · groundwater10
ALLENSVILLE MUNI AUTH · Mifflin County · 480 served · surface water10
RED ROCK JOB CORPS CENTER · Sullivan County · 425 served · groundwater10
EVERGREEN VILLAGE MHP · Northampton County · 316 served · groundwater10
VILLAGE AT CAMELBACK · Monroe County · 309 served · groundwater10
WETHERILL ESTATES · Chester County · 250 served · groundwater10
FOXCROFT MANOR MOBILE HOME PK · Lycoming County · 200 served · groundwater10
ROUND TOP MHP · Adams County · 185 served · groundwater10
HAZEL HURST WATER COMPANY · McKean County · 140 served · groundwater10
BROOKSIDE COMMONS · Crawford County · 125 served · groundwater10
MOUNTAIN VIEW TERRACE · York County · 117 served · groundwater10
HEIDELBERG ACRES MHP · Lehigh County · 90 served · groundwater10
IRISH CREEK MHP · Berks County · 90 served · groundwater10
STONEBRIDGE GARDENS MHP · Somerset County · 75 served · groundwater10
RIVERSEDGE · Northampton County · 75 served · groundwater10
WOODLAND EST MOBILE HOMES · Lancaster County · 72 served · groundwater10
LITTLE BRITAIN MHP · Lancaster County · 60 served · groundwater10
RIDGEVIEW MHP · Chester County · 55 served · groundwater10
NEIGHBORS OF PENN LAKE · Crawford County · 54 served · groundwater10
CROSSROADS MHP · Northampton County · 30 served · groundwater10
NORTHAMPTON BUCKS CO MUN AUTH · Bucks County · 36,750 served · purchased surface water9
UPPER SOUTHAMPTON MUN AUTH · Bucks County · 16,000 served · purchased surface water9
MUN WATER AUTH OF ALIQUIPPA · Beaver County · 15,685 served · groundwater9
LANSFORD COALDALE JT WATER AUT · Carbon County · 9,300 served · groundwater9
MUN AUTH OF BORO OF BEDFORD · Bedford County · 5,127 served · surface water9
DANVILLE MUNICIPAL WATER AUTH · Montour County · 4,992 served · surface water9
MANSFIELD BOROUGH MUN AUTH · Tioga County · 4,100 served · surface water9
ASPINWALL BORO WATER DEPT · Allegheny County · 3,151 served · purchased surface water9
MAPLETON MUNI WATER AUTH · Huntingdon County · 570 served · surface water9
MARION TWP WTP · Butler County · 225 served · groundwater9
COUNTRY CREST MHP · Luzerne County · 150 served · groundwater9
BROOKLINE MANOR · Juniata County · 100 served · groundwater9
LAKEVIEW PERSONAL CARE · Beaver County · 100 served · groundwater9
FAWN VALLEY SOUTH & NORTH · Monroe County · 100 served · groundwater9
FOUR SEASONS ESTATES MHP · Luzerne County · 98 served · groundwater9
ORCHARD GROVE MHP · Wayne County · 66 served · groundwater9
HIDDEN VIEW ESTATES · Centre County · 57 served · groundwater9
KINGDOM HILLS MOBILE HOME PARK · Cambria County · 55 served · groundwater9
SPRINGDALE GARDENS · Carbon County · 41 served · groundwater9
LAKESIDE MHP · Lebanon County · 40 served · groundwater9
BEECHCREST PROPERTIES LLC · Luzerne County · 25 served · groundwater9
AQUA PA MAIN SYSTEM · Montgomery County · 822,600 served · surface water8
ERIE CITY WATER AUTHORITY · Erie County · 220,001 served · surface water8
WEST VIEW WATER AUTHORITY · Allegheny County · 200,000 served · surface water8
MAWC SWEENEY PLANT · Westmoreland County · 143,000 served · surface water8
POTTSTOWN BOROUGH WATER AUTH · Montgomery County · 36,000 served · surface water8
LATROBE MUNI AUTH · Westmoreland County · 30,000 served · surface water8
PLUM BORO MUNI AUTH · Allegheny County · 27,500 served · purchased surface water8
AMBRIDGE WATER AUTH · Beaver County · 19,500 served · surface water8
CRESWELL HEIGHTS JT AUTH · Beaver County · 15,000 served · groundwater8
BOYERTOWN MUNI AUTH · Berks County · 8,000 served · surface water8
MUNICIPAL AUTHORITY OF CORRY · Erie County · 7,800 served · groundwater8
JERSEY SHORE AREA JNT WAT AUTH · Lycoming County · 6,600 served · surface water8
KENNETT SQUARE MUN WATER WORKS · Chester County · 6,328 served · purchased surface water8
TOWANDA MUNICIPAL AUTHORITY · Bradford County · 5,000 served · groundwater under surface influence8
WEST EARL WATER AUTHORITY · Lancaster County · 4,327 served · purchased surface water8
CAERNARVON TWP AUTH · Berks County · 4,245 served · groundwater8
BRACKENRIDGE BORO WATER DEPT · Allegheny County · 3,700 served · surface water8
MOUNTAINTOP REG WATER AUTH · Centre County · 3,456 served · groundwater8
NORTH COVENTRY WATER SYSTEM · Chester County · 2,907 served · purchased surface water8
HUGHESVILLE BOROUGH WATER AUTH · Lycoming County · 2,800 served · groundwater8
WEATHERLY BORO MUN AUTH · Carbon County · 2,612 served · groundwater8
ICMSA PINE TOWNSHIP · Indiana County · 1,932 served · groundwater8
AQUA PA LAKE LATONKA WTP · Mercer County · 1,600 served · groundwater8
PARKHOUSE NURSING & REHAB CTR · Montgomery County · 1,200 served · groundwater8
BESSEMER BOROUGH WATER DEPT · Lawrence County · 1,100 served · groundwater8
SELINSGROVE CENTER · Snyder County · 1,000 served · groundwater under surface influence8
AIKEN WATER COMPANY · McKean County · 850 served · groundwater8
FISHERTOWN WATER ASSN · Bedford County · 801 served · groundwater8
LAKESHORE WATER ASSN · Erie County · 800 served · purchased surface water8
LAWRENCEVILLE BORO WATER DEPT · Tioga County · 691 served · groundwater8
HOOVERSVILLE BORO · Somerset County · 645 served · purchased surface water8
INDIAN RUN VILLAGE MHP · Chester County · 550 served · groundwater8
FORREST BROOKE MHP · Mercer County · 491 served · groundwater8
ECHO VALLEY ESTATES · Luzerne County · 490 served · groundwater8
NOTTINGHAM MANOR M H COURT · Chester County · 473 served · groundwater8
SPRING RUN ESTATES WTP · Chester County · 450 served · groundwater8
LINCOLNWOOD MHP · Berks County · 450 served · groundwater8
MILES TWP WATER AUTH EAST · Centre County · 425 served · surface water8
PINE VALLEY MOBILE HOME COURT · Union County · 425 served · groundwater8
MAXATAWNY TWP MUNI AUTH · Berks County · 425 served · groundwater8
PORTER TOWNSHIP MUNICIPAL AUTH · Clinton County · 425 served · surface water8
HENDERSON TOWNSHIP MUN AUTH · Jefferson County · 354 served · groundwater8
LAUREL RUN ESTATES · Luzerne County · 340 served · groundwater8
NEW MEADOW RUN · Fayette County · 300 served · groundwater8
HALIFAX VILLAGE · Dauphin County · 272 served · groundwater8
MOUNTAIN SPRINGS MHP · Berks County · 215 served · groundwater8
CREEKVIEW MHP · Chester County · 200 served · groundwater8
FINCH HILL WATER CO · Lackawanna County · 150 served · groundwater8
LOAGS CORNER MOBILE HOME PARK · Chester County · 130 served · groundwater8
POCONO MOBILE HOME ESTATES · Monroe County · 129 served · groundwater8
MT LAUREL MOBILE HOME VILLAGE · Lackawanna County · 120 served · groundwater8
TWIN PINES HEALTH CARE CENTER · Chester County · 120 served · groundwater8
MOON VALLEY FALLS · Pike County · 120 served · groundwater8
WHITE SAND SPRINGS · Pike County · 115 served · groundwater8
MOUNTAINTOP MOBILEHOME PARK · Lancaster County · 115 served · groundwater8
BLACK HAWK MOBILE HOME PARK · Centre County · 100 served · groundwater8
WELLS TANNERY WATER SYS · Fulton County · 95 served · groundwater8
TEAKETTLE RUN WATER AUTH · Cambria County · 92 served · groundwater8
CHERRY HILL MOBILE HOME COURT · Wayne County · 86 served · groundwater8
N E TRAILER COURT · Cambria County · 81 served · groundwater8
LAZY K CAMPGROUND · Berks County · 75 served · groundwater8
VALLEY VIEW MHP WERNERSVILLE · Berks County · 60 served · groundwater8
BEAVER VALLEY MHP · Lancaster County · 50 served · groundwater8
SHERMANS VALLEY APTS PERLO III · Perry County · 45 served · groundwater8
PERRY LAKE ESTATES · Butler County · 44 served · groundwater8
CORNERSTONE LIVING · Lehigh County · 44 served · groundwater8
BALD EAGLE BOYS CAMP · Clinton County · 43 served · groundwater8
APPLE BLOSSOM LANE MHP · Blair County · 31 served · groundwater8
WHIPPERWILL MHP · Luzerne County · 25 served · groundwater8
ALTOONA WATER AUTHORITY · Blair County · 62,500 served · surface water7
WESTERN ALLEGHENY COUNTY MUN A · Allegheny County · 19,031 served · purchased surface water7
SOUTH MIDDLETON TWP WATER AUTH · Cumberland County · 11,695 served · purchased surface water7
UPPER LEACOCK TOWNSHIP · Lancaster County · 7,734 served · purchased surface water7
ALBION BOROUGH · Erie County · 5,842 served · groundwater7
CONYNGHAM SUGARLOAF JOINT MA · Luzerne County · 3,230 served · groundwater7
NEWPORT BORO WATER AUTH · Perry County · 3,200 served · surface water7
WATERSIDE LOYSBURG WATER SUPPL · Bedford County · 1,724 served · groundwater7
SAXTON MUNI WATER AUTH · Bedford County · 1,675 served · surface water7
IMPERIAL POINT WATER SERVICE · Erie County · 1,500 served · groundwater7
MILLVILLE MUNICIPAL AUTHORITY · Columbia County · 969 served · groundwater under surface influence7
MONROE COUNTY CORRECTIONAL FAC · Monroe County · 740 served · groundwater7
AQUA PA JEFFERSON HEIGHTS · Lackawanna County · 556 served · groundwater7
ROUSEVILLE MUN WATERWORKS · Venango County · 523 served · groundwater7
COOPERSTOWN WATER COMPANY · Venango County · 360 served · groundwater7
ST MARYS VILLA NURSING HOME · Lackawanna County · 353 served · groundwater7
SANDY HILL ESTATES · Butler County · 325 served · groundwater7
RAINBOW VALLEY MOBILE HOME · Erie County · 300 served · groundwater7
POCONO MTN LAKE ESTATES SECT5A · Pike County · 150 served · groundwater7
ASPEN RIDGE POA · Wayne County · 100 served · groundwater7
MOUNT TREXLER MANOR · Lehigh County · 90 served · groundwater7
WEST SPRINGFIELD MOBILE HM PK · Erie County · 90 served · groundwater7
HARDWOOD ESTATES · Crawford County · 61 served · groundwater7
STONEBRIDGE HEALTH & REHAB CTR · Perry County · 60 served · groundwater7
PERRY PHILLIPS MOBILE HOMES · Chester County · 60 served · groundwater7
MADISON ESTATES · Lackawanna County · 60 served · groundwater7
BELLE AIRE ACRES · Lackawanna County · 55 served · groundwater7
LUPFERS GROVE MHP & CPGRD · Perry County · 55 served · groundwater7
WHITE ROCK MOBILE HOME PARK · Monroe County · 50 served · groundwater7
HEMLOCK VILLAGE · Mercer County · 45 served · groundwater7
COUNTRY ACRES PERSONAL CARE · Venango County · 35 served · groundwater7
AVANTI COVE APTS · Crawford County · 16 served · groundwater7
PITTSBURGH WATER & SEWER AUTH · Allegheny County · 520,000 served · surface water6
CITY OF LANCASTER · Lancaster County · 120,000 served · surface water6
LCA WLSA CENTRAL DIVISION · Lehigh County · 47,693 served · purchased surface water6
PA AMERICAN WATER CO YARDLEY · Bucks County · 33,171 served · surface water6
SCHUYLKILL CO MUN AUTH · Schuylkill County · 31,850 served · surface water6
SHILLINGTON MUNI AUTH · Berks County · 13,300 served · purchased surface water6
MILLERSVILLE UNIV · Lancaster County · 7,950 served · groundwater6
BELLE VERNON BORO MUNI AUTH · Fayette County · 6,000 served · purchased surface water6
AQUA PA CHALFONT · Bucks County · 5,900 served · groundwater6
UPPER HANOVER WATER AUTHORITY · Montgomery County · 4,600 served · groundwater6
NEW OXFORD MUNCI AUTH · Adams County · 3,963 served · surface water6
MOUNTAIN WATER ASSN · Fayette County · 3,856 served · purchased surface water6
SYKESVILLE BOROUGH · Jefferson County · 1,500 served · purchased surface water6
ORBISONIA ROCKHILL JT MUN AUTH · Huntingdon County · 1,200 served · groundwater6
NEW MILFORD MUNICIPAL AUTH · Susquehanna County · 979 served · groundwater6
MILLHEIM BOROUGH WATER COMPANY · Centre County · 902 served · surface water6
W STCLAIR PLEASANTVILLE MUNI · Bedford County · 715 served · groundwater6
VILLAGE OF PLEASANT HILL · Berks County · 650 served · groundwater6
PINE GROVE TWP WATER SYSTEM · Warren County · 640 served · groundwater6
KEYSTONE JOB CORPS CENTER · Luzerne County · 500 served · groundwater6
LUTHERAN HOME AT TOPTON · Berks County · 410 served · groundwater6
HAMLIN WATER COMPANY · Wayne County · 400 served · groundwater6
MT GRETNA CAMPMEETING ASSN · Lebanon County · 375 served · groundwater6
MOUNTAINVIEW MHP · Northampton County · 335 served · groundwater6
COWANSHANNOCK M A SAGAMORE SYS · Armstrong County · 300 served · groundwater6
PINE GROVE ESTATES · Wayne County · 263 served · groundwater6
GLEN CAMPBELL WATER WORKS · Indiana County · 260 served · groundwater6
DRIFTWOOD BOROUGH · Cameron County · 258 served · surface water6
SKYVIEW GARDENS APTS · Perry County · 234 served · groundwater6
INDEPENDENCE PARK · Beaver County · 225 served · groundwater6
RAINSBURG BOROUGH WATER · Bedford County · 200 served · groundwater6
CORAL RIDGE ESTATES MHP · Butler County · 200 served · groundwater6
INDIAN LAKE CAMP CORP · Franklin County · 125 served · groundwater6
TRANQUILITY FALLS · Pike County · 121 served · groundwater6
GREENTOP MOBILE HOME PARK · Bucks County · 120 served · groundwater6
STONE BARN RENTALS · Chester County · 120 served · groundwater6
COCHRANVILLE MHP · Chester County · 99 served · groundwater6
HERITAGE HILL ESTATE · Berks County · 90 served · groundwater6
TOWN & COUNTRY WATER ASSOC · Luzerne County · 79 served · groundwater6
GREEN GROVE TRAILER CT · Franklin County · 75 served · groundwater6
HY VUE ACRES MHP · Butler County · 62 served · groundwater6
POCONO PLATEAU PARK WELL 1 · Monroe County · 60 served · groundwater6
BENNERS MHP · Juniata County · 60 served · groundwater6
PEDIATRIC SPECIALTY CARE · Bucks County · 56 served · groundwater6
HIGHLAND COURT · Chester County · 54 served · groundwater6
NOLTS RED MAPLE MHP · Lancaster County · 51 served · groundwater6
Source: U.S. EPA Safe Drinking Water Information System (SDWIS). "Health-based" counts maximum-contaminant-level, treatment-technique and maximum-residual-disinfectant-level violations recorded since 2015. A violation on record — especially a resolved one — is not a statement about water quality today; contact the water system or your state drinking-water program for current information.