Lead Pipe Map

Lead pipes in Pennsylvania

Pennsylvania's 1,849 community water systems reported 65,279 lead and 48,432 galvanized-requiring-replacement service lines, plus 2,046,705 of unknown material. That ranks #9 among states for confirmed lead lines.

65,279Lead
48,432Galvanized, replace
2,046,705Unknown
399Systems with lead

2.9% of the service lines Pennsylvania utilities reported are lead or galvanized requiring replacement, close to the national share of 3.1%. 52% are still unidentified (national: 21%). The largest counts are in Philadelphia Water Department (18,582), Pittsburgh Water & Sewer Auth (18,415), Lca Allentown Division (10,391). 77 systems haven't reported counts yet.

Since 2025 Q1, reported lead and galvanized lines in Pennsylvania went from 110,897 to 113,711 (up 2,814). See which systems made the most progress.

Systems with confirmed lead lines (399)

Water systemLeadGalv.Unknown% leadPeople
Philadelphia Water DepartmentPhiladelphia County16,8051,777351,5133.5%1,600,000
Pittsburgh Water & Sewer AuthAllegheny County16,1652,2502,36123%520,000
Lca Allentown DivisionLehigh County4,5525,83920,89432%118,000
Altoona Water AuthorityBlair County06,5988,68328%62,500
PA Amer Water Co-PittsburghAllegheny County4,2901,780207,1012.6%686,000
Aqua PA Main SystemMontgomery County554,59539,2171.5%822,600
Greater Johnstown WA RiversideCambria County4,3453315,18620%49,500
Wilkinsburg-Penn JT Water AuthAllegheny County3,7041345,8288.6%125,000
Mawc Sweeney PlantWestmoreland County2,4082721,9114.1%143,000
Oil CityVenango County2,3888766455%9,608
PA American Water Co WestCumberland County391,71232,8324.0%105,127
Williamsport Mun Water AuthLycoming County1,690517,2688.9%51,000
West Cnty Muni Auth-McKeesportAllegheny County1,450656,2388.0%32,644
Northampton Boro Muni AuthNorthampton County01,5109,5439.8%40,000
PA Amer Water Co New CastleLawrence County98834214,9286.5%43,279
Erie City Water AuthorityErie County01,31226,5972.3%220,001
Ambridge Water AuthBeaver County1,13806,30014%19,500
Aqua PA Susquehanna DivisionBradford County21,11258921%15,569
Aqua PA Shenango Valley WTPMercer County61,0655,8445.4%48,000
PA Amer Water Co Lake ScrantonLackawanna County27165749,6961.6%137,142
Veolia MechanicsburgCumberland County084605.6%45,013
City of BethlehemNorthampton County077729,9332.1%117,259
West View Water AuthorityAllegheny County56720518,4281.2%200,000
Emmaus Borough Public WaterLehigh County2423081,67313%14,000
Paw CeasetownLuzerne County12737029,3461.6%58,467
Capital Region WaterDauphin County1547902.3%66,540
City of LancasterLancaster County474042,8411.0%120,000
Paw Penn DistrictBerks County1641711,9323.4%28,508
Brookville Municipal AuthJefferson County313105816%6,220
PA American NorristownMontgomery County4337430,3401.2%88,885
West Grove BoroughChester County0417047%2,873
PA Amer Water CoDauphin County1140219,7091.9%50,200
Selinsgrove Muni AuthSnyder County33801,07820%5,584
PA American Water Co WarrenWarren County203614,9976.6%14,650
PA American Water Co ButlerButler County7929320,2181.7%43,286
Paw WatresLuzerne County7928222,6201.4%52,002
Ambler Boro Water DeptMontgomery County03447395.7%20,000
Aqua PA GreenvilleMercer County702651,57212%8,600
Latrobe Muni AuthWestmoreland County452731,3583.6%30,000
Aqua ShenandoahSchuylkill County82893,1186.5%9,500
PA American CoatesvilleChester County6321913,1311.9%36,960
Reading Area Water AuthorityBerks County225420,1120.7%95,100
Aqua PA Roaring Creek DivisionNorthumberland County02563,9931.4%43,000
Carlisle Water TRMT PLTCumberland County02512,6943.5%26,000
Beaver Boro Muni AuthBeaver County161901,49914%5,799
Mawc Yough PlantFayette County1351148890.5%133,000
Aqua PA HatboroMontgomery County02471628.2%12,901
PA American Water Co YardleyBucks County1023512,1521.9%33,171
Hampton Shaler Water AuthorityAllegheny County234223,9190.9%61,949
Port Allegany Water DepartmentMcKean County2260022%2,591
Paw NesbittLuzerne County8013413,9721.4%52,640
PA American White DeerNorthumberland County220712,4351.5%30,209
Veolia Water PA INC BloomsburgColumbia County020702.8%29,382
Waterford Municipal AuthorityErie County0195087%1,700
Veolia WaterDauphin County018600.5%110,000
Lebanon Water AuthLebanon County1216210,3420.9%57,000
Pa-American Water- UniontownFayette County381459,0061.8%23,125
Lititz BoroLancaster County01833,1974.7%9,397
Pawc Blue MountainNorthampton County331309,4441.6%23,763
Beaver Falls Muni AuthBeaver County221325950.9%49,500
North Fayette Cnty Muni AuthFayette County614712,1740.8%35,409
Oxford BoroughChester County101424609.2%5,280
Chester Water AuthorityDelaware County148138,6960.3%140,437
PA American Water Co-Indiana DIndiana County81386,9701.9%22,360
Auburn Municipal AuthoritySchuylkill County0145047%920
Mun Water Auth of AliquippaBeaver County105373,6182.4%15,685
Titusville Municipal WaterCrawford County01401,9496.3%6,146
Aqua PA BristolBucks County61273,0121.1%28,727
Red Lion Municipal AuthorityYork County113136,9931.8%15,882
PA American RoyersfordChester County611517,1360.7%49,508
York Water CoYork County911171,2830.2%206,762
Grove City Boro Water DeptMercer County01203955.3%7,871
Boro of WaynesboroFranklin County01175,1461.7%13,200
Saegertown BoroughCrawford County01146829%1,500
PA American Water PunxsyJefferson County16953,2012.8%8,419
Paw HuntsvilleLuzerne County28807,3251.3%11,987
Muhlenberg TWP Muni AuthBerks County01075,6321.3%22,400
Greencastle Area Water AuthFranklin County10971,1714.3%5,500
Blairsville Muni AuthIndiana County83231,2985.5%4,023
PA Amer Water Co Ellwood CtyLawrence County20839,1511.1%17,200
Paw PhilipsburgCentre County4997,1821.2%20,865
PA Amer Water Co BrownellLackawanna County19825,0681.7%12,560
Mt Penn Boro Muni AuthBerks County11003,1322.7%10,400
Fairview TWP Water Auth Dist 3Erie County010145710%3,320
PA American Water Co ClarionClarion County7923,2511.9%10,372
Pa-American Water-BrownsvilleFayette County10805,1411.6%7,844
Christiana Muni Water AuthLancaster County3871221%1,100
Blain Water CoPerry County1278078%321
Slatington Borough Water SysLehigh County8446266.1%4,450
Mont Alto Municipal AuthorityFranklin County08645311%1,705
Linesville Municipal AuthorityCrawford County086817%1,600
Mifflin Cnty Muni AuthMifflin County0849,2520.7%29,432
Martinsburg Muni AuthBlair County0836276.5%3,160
Lehighton Water AuthorityCarbon County24571,5452.8%9,000
Tamaqua Area Water AuthoritySchuylkill County8002,5292.3%8,000
Schwenksville Borough AuthMontgomery County0801068.0%5,200
Bellwood Boro AuthBlair County0791,1415.9%3,162
Union City Municipal AuthorityErie County0799316.4%4,295
Muni Auth of Boro of MatamorasPike County47405.9%2,900
Orbisonia Rockhill JT Mun AuthHuntingdon County07730920%1,200

Showing the 100 with the most. All Pennsylvania water systems

No confirmed lead, but unknown lines remain (504)

Water systemLeadGalv.Unknown% leadPeople
New Kensington Muni AuthWestmoreland County0014,0780%47,800
Oakmont Water AuthorityAllegheny County0013,7260%39,901
Bcwsa Main Lower SouthBucks County0012,7840%52,621
Auth of Boro of CharleroiWashington County0011,5880%27,000
Pottstown Borough Water AuthMontgomery County009,6760%36,000
Plum Boro Muni AuthAllegheny County008,2840%27,500
Lca Wlsa Central DivisionLehigh County006,9770%47,693
Nwwa Warrington TownshipBucks County006,9730%21,588
Phoenixville Water DeptChester County006,0800%16,599
Clearfield Municipal AuthClearfield County005,3340%14,000
East Hempfield Water AuthLancaster County005,1260%20,988
Creswell Heights JT AuthBeaver County004,7480%15,000
Windber Area AuthSomerset County004,0910%9,463
Center TWP Water AuthBeaver County003,6140%19,000
Brodhead Creek Reg Water AuthMonroe County003,4160%30,000
Salisbury TWP Water SystemLehigh County003,3140%8,522
Suburban Lock Haven Water AuthClinton County003,2560%9,700
Tri Cnty JT Muni AuthWashington County003,1810%10,100
Muni Auth of Washington TWPFayette County002,9850%9,100
Huntingdon Boro Water DeptHuntingdon County002,6860%13,776
Findlay TWP Municipal AuthAllegheny County002,6770%11,460
Harrison TWP Water AuthAllegheny County002,6480%13,411
Conemaugh TWP Muni AuthSomerset County002,6290%7,800
Blythe TWP Municipal AuthoritySchuylkill County002,3910%7,100
Perkasie Regional AuthorityBucks County002,3340%15,000
Edgeworth Boro Muni AuthAllegheny County002,2300%7,781
Collegeville Trappe Joint PWDMontgomery County002,2220%8,470
Central Indiana Co Water AuthIndiana County002,0790%4,920
Aqua PA Fawn Lake ForestPike County002,0450%6,533
Hamburg Muni Water&sewer AuthBerks County001,9600%4,990
Towanda Municipal AuthorityBradford County001,9520%5,000
E Stroudsburg Boro Water DeptMonroe County001,9100%13,000
Duquesne Water DeptAllegheny County001,8820%5,565
Birdsboro Muni Water AuthBerks County001,8670%5,353
Lansford Coaldale JT Water AutCarbon County001,8350%9,300
Masontown Muni Water WorksFayette County001,8030%3,841
Ligonier TWP Muni AuthWestmoreland County001,6970%3,293
Wellsboro Municipal AuthorityTioga County001,6690%8,225
PA American Dilliner SystemGreene County001,6480%4,200
Pleasant Valley Water AuthFayette County001,5040%3,630
Pawc Appalachian DistClinton County001,4710%3,000
East Petersburg BoroughLancaster County001,4460%6,215
East Cocalico Township AuthLancaster County001,3630%6,735
Seven Fields Boro Water DeptButler County001,3360%3,100
Littlestown BoroAdams County001,2950%7,300
Red Hill Water AuthorityMontgomery County001,2510%2,500
Pawc Wild AcresPike County001,2450%2,943
Kittanning Suburb JT Water AutArmstrong County001,2380%8,000
Conyngham Sugarloaf Joint MaLuzerne County001,2150%3,230
Lake Meade Muni AuthAdams County001,2010%3,221

Showing 50. See all

No lead or unknown lines reported (126)

Systems serving 1,000 or more people. Systems without counts on file are listed as 0.

Water systemLeadGalv.Unknown% leadPeople
Lower Bucks Co Joint Mun AuthBucks County0000%63,007
Cranberry TWP WTPButler County0000%42,000
Moon TWP Muni AuthAllegheny County0000%38,000
Northampton Bucks Co Mun AuthBucks County0000%36,750
Warminster Municipal AuthorityBucks County0000%36,000
Falls TWP Water & Sewer DeptBucks County0000%24,400
Dover TWP Water SysYork County0000%21,097
Western Allegheny County Mun AAllegheny County0000%19,031
Bradford City Water AuthorityMcKean County0000%18,500
Robinson TWP Muni AuthAllegheny County0000%16,354
Warwick TWP Water & Sewer AuthBucks County0000%14,699
Whitehall TWP AuthorityLehigh County0000%13,063
Bear Valley Joint AuthFranklin County0000%12,589
South Middleton TWP Water AuthCumberland County000–11,695
Richland TWP Water AuthorityAllegheny County0000%10,190
West Manchester TWP AuthYork County000–9,960
Hemlock Farms (Main)Pike County0000%8,321
Millersville UnivLancaster County0000%7,950
Veolia Water BethelDelaware County0000%7,809
Municipal Authority of CorryErie County0000%7,800
Womelsdorf Robesonia JT AuthBerks County0000%7,070
Indian Creek Valley Water AuthFayette County0000%7,000
Richland TWP Water AuthorityBucks County0000%6,800
Manor TWP JT Muni AuthArmstrong County0000%6,744
Veolia Newberry SystemYork County0000%6,480
Belle Vernon Boro Muni AuthFayette County000–6,000
Lower Saucon AuthorityNorthampton County0000%5,700
Mun Auth of Boro of BedfordBedford County0000%5,127
Tarentum Boro Water DeptAllegheny County0000%4,927
London Grove TWP Mun AuthChester County0000%4,770
Buckingham TWP Cold SpringBucks County0000%4,760
Fawn Frazer JT Water AuthAllegheny County0000%4,650
Milford TWP Water AuthorityBucks County0000%4,497
Mifflintown Muni AuthJuniata County0000%4,450
Brockway Boro Municipal AuthJefferson County0000%4,384
West Earl Water AuthorityLancaster County0000%4,327
New Sewickley TWP Muni AuthBeaver County0000%4,276
Zelienople BoroButler County000–4,123
East DonegalLancaster County0000%4,048
Tobyhanna Army DepotMonroe County0000%3,800
Mountaintop Reg Water AuthCentre County0000%3,456
Springdale Boro Water DeptAllegheny County0000%3,405
Mt Holly Springs Boro AuthCumberland County0000%3,261
Walker TWP Water AssnCentre County0000%3,250
Lykens Boro AuthDauphin County0000%3,220
Aqua PA Water Co Sci WaymartWayne County0000%3,200
Glendale Valley Municipal AuthCambria County0000%3,200
Nanty Glo Water AuthCambria County0000%3,152
Va Healthcare System HeinzAllegheny County0000%3,112
Eaton Sewer & Water CoWyoming County0000%3,100

Showing the 50 largest. See all

Lead pipes in Pennsylvania cities

All Pennsylvania cities and towns · Lead pipes by county

Pennsylvania lead pipe questions

How many lead pipes are in Pennsylvania?

Pennsylvania's community water systems reported 65,279 lead service lines and 48,432 galvanized lines that must be replaced, for 113,711 in total. Another 2,046,705 lines are of unknown material.

Which Pennsylvania water systems have the most lead pipes?

Philadelphia Water Department (18,582), Pittsburgh Water & Sewer Auth (18,415), Lca Allentown Division (10,391). Counts are lead plus galvanized-requiring-replacement lines.

What share of Pennsylvania service lines are lead?

2.9% of reported service lines in Pennsylvania are lead or galvanized requiring replacement, close to the national figure of 3.1%. 52% are still unknown, compared with 21% nationally.

How do I find out if my Pennsylvania home has a lead service line?

Search for your water system or ZIP code above, then open your utility's address-level inventory map. You can also check the pipe where it enters your home with a scratch and magnet test.

Source: EPA SDWIS service line inventory, 2026 Q3. Smaller systems with no lead or unknown lines are omitted. See also national rankings.