Fragile Water Systems in Pennsylvania

59 community drinking-water systems in Pennsylvania currently rated Fragile (MISI 41–60).

Systems in the Fragile band (MISI 41–60) face meaningful structural challenges across multiple risk families. Typical patterns include concurrent operational stress and capital pressure, or revenue fragility paired with governance risk.

SystemPop. ServedMISIBand

Philadelphia1.6M50.593Fragile

AQUA PA MAIN SYSTEM823K46.581Fragile

PA AMER WATER CO-PITTSBURGH686K41.022Fragile

Pittsburgh520K52.362Fragile

Chester140K43.269Fragile

MAWC YOUGH PLANT133K45.512Fragile

Easton97K41.956Fragile

Reading95K43.752Fragile

NORTH PENN WATER AUTHORITY92K51.118Fragile

NORTH WALES WATER AUTHORITY72K46.993Fragile

Harrisburg67K47.285Fragile

LOWER BUCKS CO JOINT MUN AUTH63K44.870Fragile

AQUA PA BENSALEM59K45.973Fragile

BCWSA MAIN LOWER SOUTH53K43.994Fragile

PA AMER WATER CO50K49.953Fragile

AQUA PA WEST CHESTER49K46.551Fragile

NEWTOWN ARTESIAN WATER CO39K41.649Fragile

NORTHAMPTON BUCKS CO MUN AUTH37K40.652Fragile

Pottstown36K48.623Fragile

PA AMERICAN WATER CO YARDLEY33K44.746Fragile

AQUA PA BRISTOL29K41.649Fragile

PAW PENN DISTRICT29K44.957Fragile

HORSHAM WATER&SEWER AUTHORITY26K46.250Fragile

FALLS TWP WATER & SEWER DEPT24K41.649Fragile

WARRINGTON TWP WATER&SEW DEPT22K40.652Fragile

MUHLENBERG TWP MUNI AUTH21K40.652Fragile

AMBLER BORO WATER DEPT20K44.149Fragile

PHOENIXVILLE WATER DEPT17K41.649Fragile

WHITEHALL TWP AUTHORITY13K40.462Fragile

E STROUDSBURG BORO WATER DEPT13K43.228Fragile

AQUA PA HATBORO13K43.717Fragile

SUPERIOR WATER COMPANY MAIN11K51.620Fragile

MT PENN MUNI WATER AUTH10K44.125Fragile

DOWNINGTOWN WATER AUTHORITY10K41.649Fragile

MIDDLETOWN BORO WATER AUTH10K41.845Fragile

LITITZ BORO9K43.128Fragile

LANSFORD COALDALE JT WATER AUT9K40.651Fragile

DOYLESTOWN TWP MUN AUTHORITY9K49.134Fragile

DILLSBURG AREA AUTHORITY9K40.131Fragile

COLLEGEVILLE TRAPPE JOINT PWD8K44.718Fragile

HOUTZDALE MUNICIPAL AUTHORITY8K45.936Fragile

AUDUBON WATER COMPANY8K52.616Fragile

CONEMAUGH TWP MUNI AUTH8K50.026Fragile

INDIAN CREEK VALLEY WATER AUTH7K46.018Fragile

RICHLAND TWP WATER AUTHORITY7K43.649Fragile

MANHEIM BORO WATER DEPT7K41.200Fragile

STEELTON BORO WATER AUTH6K40.625Fragile

SOMERSET BORO MUNI WATER AUTH6K48.926Fragile

BROOKVILLE MUNICIPAL AUTH6K40.419Fragile

AQUA PA CHALFONT6K40.229Fragile

BEAVER BORO MUNI AUTH6K43.286Fragile

HILLTOWN TWP WATER&SEWER AUTH6K43.147Fragile

SCHWENKSVILLE BOROUGH AUTH5K41.501Fragile

UPPER HANOVER WATER AUTHORITY5K43.150Fragile

MILLERSBURG WATER AUTH5K43.728Fragile

NORTH SEWICKLEY MUN WATER AUTH5K41.286Fragile

SLATINGTON BOROUGH WATER SYS4K45.459Fragile

MOUNTAIN WATER ASSN4K46.018Fragile

Norristown77146.147Fragile