Pennsylvania County Water Quality Reports

Adams County, PA: Lead Above EPA Limits — 49/100 (2026)

2026 report: Adams County, PA scores 49/100 (Grade D). 21 ZIP codes analyzed. 55 EPA violations found. Lead above EPA limits. Free report with contamina...

Allegheny County, PA: Lead Above EPA Limits — 55/100 (2026)

2026 report: Allegheny County, PA scores 55/100 (Grade C). 182 ZIP codes analyzed. 1010 EPA violations found. Lead above EPA limits. Free report with co...

Armstrong County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Armstrong County, PA scores 47/100 (Grade D). 37 ZIP codes analyzed. 109 EPA violations found. Lead above EPA limits. Free report with cont...

Beaver County, PA: Lead Above EPA Limits — 53/100 (2026)

2026 report: Beaver County, PA scores 53/100 (Grade D). 22 ZIP codes analyzed. 238 EPA violations found. Lead above EPA limits. Free report with contami...

Bedford County, PA: 8 Health Violations — 49/100 (2026)

2026 report: Bedford County, PA scores 49/100 (Grade D). 27 ZIP codes analyzed. 109 EPA violations found. Free report with contaminant data and filter p...

Berks County, PA: Lead Above EPA Limits — 53/100 (2026)

2026 report: Berks County, PA scores 53/100 (Grade D). 58 ZIP codes analyzed. 211 EPA violations found. Lead above EPA limits. Free report with contamin...

Blair County, PA: Lead Above EPA Limits — 51/100 (2026)

2026 report: Blair County, PA scores 51/100 (Grade D). 16 ZIP codes analyzed. 137 EPA violations found. Lead above EPA limits. Free report with contamin...

Bradford County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Bradford County, PA scores 47/100 (Grade D). 33 ZIP codes analyzed. 144 EPA violations found. Lead above EPA limits. Free report with conta...

Bucks County, PA: Lead Above EPA Limits — 49/100 (2026)

2026 report: Bucks County, PA scores 49/100 (Grade D). 70 ZIP codes analyzed. 337 EPA violations found. Lead above EPA limits. Free report with contamin...

Butler County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Butler County, PA scores 47/100 (Grade D). 45 ZIP codes analyzed. 218 EPA violations found. Lead above EPA limits. Free report with contami...

Cambria County, PA: Lead Above EPA Limits — 64/100 (2026)

2026 report: Cambria County, PA scores 64/100 (Grade C). 60 ZIP codes analyzed. 631 EPA violations found. Lead above EPA limits. Free report with contam...

Cameron County, PA: 10 Violations — 54/100 (2026)

2026 report: Cameron County, PA scores 54/100 (Grade D). 3 ZIP codes analyzed. 10 EPA violations found. Free report with contaminant data and filter picks.

Carbon County, PA: Lead Above EPA Limits — 50/100 (2026)

2026 report: Carbon County, PA scores 50/100 (Grade D). 20 ZIP codes analyzed. 115 EPA violations found. Lead above EPA limits. Free report with contami...

Centre County, PA: Lead Above EPA Limits — 53/100 (2026)

2026 report: Centre County, PA scores 53/100 (Grade D). 33 ZIP codes analyzed. 262 EPA violations found. Lead above EPA limits. Free report with contami...

Chester County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Chester County, PA scores 47/100 (Grade D). 90 ZIP codes analyzed. 320 EPA violations found. Lead above EPA limits. Free report with contam...

Clarion County, PA: 11 Health Violations — 47/100 (2026)

2026 report: Clarion County, PA scores 47/100 (Grade D). 41 ZIP codes analyzed. 74 EPA violations found. Free report with contaminant data and filter pi...

Clearfield County, PA: Lead Above EPA Limits — 48/100 (2026)

2026 report: Clearfield County, PA scores 48/100 (Grade D). 44 ZIP codes analyzed. 116 EPA violations found. Lead above EPA limits. Free report with con...

Clinton County, PA: 9 Health Violations — 49/100 (2026)

2026 report: Clinton County, PA scores 49/100 (Grade D). 18 ZIP codes analyzed. 225 EPA violations found. Free report with contaminant data and filter p...

Columbia County, PA: Lead Above EPA Limits — 46/100 (2026)

2026 report: Columbia County, PA scores 46/100 (Grade D). 12 ZIP codes analyzed. 108 EPA violations found. Lead above EPA limits. Free report with conta...

Crawford County, PA: Lead Above EPA Limits — 63/100 (2026)

2026 report: Crawford County, PA scores 63/100 (Grade C). 25 ZIP codes analyzed. 182 EPA violations found. Lead above EPA limits. Free report with conta...

Cumberland County, PA: 8 Health Violations — 52/100 (2026)

2026 report: Cumberland County, PA scores 52/100 (Grade D). 20 ZIP codes analyzed. 157 EPA violations found. Free report with contaminant data and filte...

Dauphin County, PA: Lead Above EPA Limits — 53/100 (2026)

2026 report: Dauphin County, PA scores 53/100 (Grade D). 40 ZIP codes analyzed. 528 EPA violations found. Lead above EPA limits. Free report with contam...

Delaware County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Delaware County, PA scores 47/100 (Grade D). 32 ZIP codes analyzed. 143 EPA violations found. Lead above EPA limits. Free report with conta...

Elk County, PA: Lead Above EPA Limits — 62/100 (2026)

2026 report: Elk County, PA scores 62/100 (Grade C). 16 ZIP codes analyzed. 126 EPA violations found. Lead above EPA limits. Free report with contaminan...

Erie County, PA: Lead Above EPA Limits — 74/100 (2026)

2026 report: Erie County, PA scores 74/100 (Grade B). 50 ZIP codes analyzed. 855 EPA violations found. Lead above EPA limits. Free report with contamina...

Fayette County, PA: 26 Health Violations — 59/100 (2026)

2026 report: Fayette County, PA scores 59/100 (Grade C). 77 ZIP codes analyzed. 232 EPA violations found. Free report with contaminant data and filter p...

Forest County, PA: 2 Violations — 74/100 (2026)

2026 report: Forest County, PA scores 74/100 (Grade B). 1 ZIP code analyzed. 2 EPA violations found. Free report with contaminant data and filter picks.

Franklin County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Franklin County, PA scores 47/100 (Grade D). 30 ZIP codes analyzed. 216 EPA violations found. Lead above EPA limits. Free report with conta...

Fulton County, PA: 29 Violations — 47/100 (2026)

2026 report: Fulton County, PA scores 47/100 (Grade D). 11 ZIP codes analyzed. 29 EPA violations found. Free report with contaminant data and filter picks.

Greene County, PA: 20 Health Violations — 62/100 (2026)

2026 report: Greene County, PA scores 62/100 (Grade C). 15 ZIP codes analyzed. 83 EPA violations found. Free report with contaminant data and filter picks.

Huntingdon County, PA: 3 Health Violations — 53/100 (2026)

2026 report: Huntingdon County, PA scores 53/100 (Grade D). 27 ZIP codes analyzed. 83 EPA violations found. Free report with contaminant data and filter...

Indiana County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Indiana County, PA scores 47/100 (Grade D). 29 ZIP codes analyzed. 72 EPA violations found. Lead above EPA limits. Free report with contami...

Jefferson County, PA: 4 Health Violations — 58/100 (2026)

2026 report: Jefferson County, PA scores 58/100 (Grade C). 22 ZIP codes analyzed. 145 EPA violations found. Free report with contaminant data and filter...

Juniata County, PA: 4 Health Violations — 52/100 (2026)

2026 report: Juniata County, PA scores 52/100 (Grade D). 10 ZIP codes analyzed. 75 EPA violations found. Free report with contaminant data and filter pi...

Lackawanna County, PA: Lead Above EPA Limits — 51/100 (2026)

2026 report: Lackawanna County, PA scores 51/100 (Grade D). 36 ZIP codes analyzed. 125 EPA violations found. Lead above EPA limits. Free report with con...

Lancaster County, PA: Lead Above EPA Limits — 53/100 (2026)

2026 report: Lancaster County, PA scores 53/100 (Grade D). 61 ZIP codes analyzed. 429 EPA violations found. Lead above EPA limits. Free report with cont...

Lawrence County, PA: 1 Health Violation — 65/100 (2026)

2026 report: Lawrence County, PA scores 65/100 (Grade C). 25 ZIP codes analyzed. 19 EPA violations found. Free report with contaminant data and filter p...

Lebanon County, PA: Lead Above EPA Limits — 48/100 (2026)

2026 report: Lebanon County, PA scores 48/100 (Grade D). 15 ZIP codes analyzed. 116 EPA violations found. Lead above EPA limits. Free report with contam...

Lehigh County, PA: Lead Above EPA Limits — 51/100 (2026)

2026 report: Lehigh County, PA scores 51/100 (Grade D). 36 ZIP codes analyzed. 196 EPA violations found. Lead above EPA limits. Free report with contami...

Luzerne County, PA: Lead Above EPA Limits — 51/100 (2026)

2026 report: Luzerne County, PA scores 51/100 (Grade D). 54 ZIP codes analyzed. 201 EPA violations found. Lead above EPA limits. Free report with contam...

Lycoming County, PA: Lead Above EPA Limits — 44/100 (2026)

2026 report: Lycoming County, PA scores 44/100 (Grade D). 20 ZIP codes analyzed. 282 EPA violations found. Lead above EPA limits. Free report with conta...

McKean County, PA: Lead Above EPA Limits — 63/100 (2026)

2026 report: McKean County, PA scores 63/100 (Grade C). 18 ZIP codes analyzed. 206 EPA violations found. Lead above EPA limits. Free report with contami...

Mercer County, PA: 10 Health Violations — 63/100 (2026)

2026 report: Mercer County, PA scores 63/100 (Grade C). 17 ZIP codes analyzed. 138 EPA violations found. Free report with contaminant data and filter pi...

Mifflin County, PA: 2 Health Violations — 51/100 (2026)

2026 report: Mifflin County, PA scores 51/100 (Grade D). 11 ZIP codes analyzed. 28 EPA violations found. Free report with contaminant data and filter pi...

Monroe County, PA: Lead Above EPA Limits — 48/100 (2026)

2026 report: Monroe County, PA scores 48/100 (Grade D). 49 ZIP codes analyzed. 262 EPA violations found. Lead above EPA limits. Free report with contami...

Montgomery County, PA: Lead Above EPA Limits — 47/100 (2026)

2026 report: Montgomery County, PA scores 47/100 (Grade D). 53 ZIP codes analyzed. 315 EPA violations found. Lead above EPA limits. Free report with con...

Montour County, PA: 1 Health Violation — 52/100 (2026)

2026 report: Montour County, PA scores 52/100 (Grade D). 3 ZIP codes analyzed. 21 EPA violations found. Free report with contaminant data and filter picks.

Northampton County, PA: Lead Above EPA Limits — 50/100

2026 report: Northampton County, PA scores 50/100 (Grade D). 21 ZIP codes analyzed. 199 EPA violations found. Lead above EPA limits. Free report with co...

Northumberland County, PA: 2 Health Violations — 49/100

2026 report: Northumberland County, PA scores 49/100 (Grade D). 12 ZIP codes analyzed. 82 EPA violations found. Free report with contaminant data and fi...

Perry County, PA: Lead Above EPA Limits — 44/100 (2026)

2026 report: Perry County, PA scores 44/100 (Grade D). 13 ZIP codes analyzed. 152 EPA violations found. Lead above EPA limits. Free report with contamin...

Philadelphia County, PA: 340 Violations — 85/100 (2026)

2026 report: Philadelphia County, PA scores 85/100 (Grade A). 111 ZIP codes analyzed. 340 EPA violations found. Free report with contaminant data and fi...

Pike County, PA: Lead Above EPA Limits — 62/100 (2026)

2026 report: Pike County, PA scores 62/100 (Grade C). 12 ZIP codes analyzed. 230 EPA violations found. Lead above EPA limits. Free report with contamina...

Potter County, PA: Lead Above EPA Limits — 63/100 (2026)

2026 report: Potter County, PA scores 63/100 (Grade C). 11 ZIP codes analyzed. 151 EPA violations found. Lead above EPA limits. Free report with contami...

Schuylkill County, PA: Lead Above EPA Limits — 48/100 (2026)

2026 report: Schuylkill County, PA scores 48/100 (Grade D). 62 ZIP codes analyzed. 134 EPA violations found. Lead above EPA limits. Free report with con...

Snyder County, PA: 10 Health Violations — 52/100 (2026)

2026 report: Snyder County, PA scores 52/100 (Grade D). 16 ZIP codes analyzed. 208 EPA violations found. Free report with contaminant data and filter pi...

Somerset County, PA: Lead Above EPA Limits — 63/100 (2026)

2026 report: Somerset County, PA scores 63/100 (Grade C). 39 ZIP codes analyzed. 163 EPA violations found. Lead above EPA limits. Free report with conta...

Sullivan County, PA: Lead Above EPA Limits — 48/100 (2026)

2026 report: Sullivan County, PA scores 48/100 (Grade D). 9 ZIP codes analyzed. 25 EPA violations found. Lead above EPA limits. Free report with contami...

Susquehanna County, PA: Lead Above EPA Limits — 45/100

2026 report: Susquehanna County, PA scores 45/100 (Grade D). 30 ZIP codes analyzed. 131 EPA violations found. Lead above EPA limits. Free report with co...

Tioga County, PA: 9 Health Violations — 52/100 (2026)

2026 report: Tioga County, PA scores 52/100 (Grade D). 21 ZIP codes analyzed. 223 EPA violations found. Free report with contaminant data and filter picks.

Union County, PA: 2 Health Violations — 51/100 (2026)

2026 report: Union County, PA scores 51/100 (Grade D). 8 ZIP codes analyzed. 71 EPA violations found. Free report with contaminant data and filter picks.

Venango County, PA: Lead Above EPA Limits — 50/100 (2026)

2026 report: Venango County, PA scores 50/100 (Grade D). 10 ZIP codes analyzed. 102 EPA violations found. Lead above EPA limits. Free report with contam...

Warren County, PA: 6 Health Violations — 67/100 (2026)

2026 report: Warren County, PA scores 67/100 (Grade C). 18 ZIP codes analyzed. 84 EPA violations found. Free report with contaminant data and filter picks.

Washington County, PA: 23 Health Violations — 59/100 (2026)

2026 report: Washington County, PA scores 59/100 (Grade C). 38 ZIP codes analyzed. 91 EPA violations found. Free report with contaminant data and filter...

Wayne County, PA: Lead Above EPA Limits — 59/100 (2026)

2026 report: Wayne County, PA scores 59/100 (Grade C). 33 ZIP codes analyzed. 119 EPA violations found. Lead above EPA limits. Free report with contamin...

Westmoreland County, PA: 8 Health Violations — 52/100 (2026)

2026 report: Westmoreland County, PA scores 52/100 (Grade D). 23 ZIP codes analyzed. 105 EPA violations found. Free report with contaminant data and fil...

Wyoming County, PA: Lead Above EPA Limits — 45/100 (2026)

2026 report: Wyoming County, PA scores 45/100 (Grade D). 18 ZIP codes analyzed. 132 EPA violations found. Lead above EPA limits. Free report with contam...

York County, PA: 15 Health Violations — 53/100 (2026)

2026 report: York County, PA scores 53/100 (Grade D). 44 ZIP codes analyzed. 326 EPA violations found. Free report with contaminant data and filter picks.