EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Montgomery, Pennsylvania

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems17active CWS · pop. 2,500+
Population served1,225,593reported total; may overlap
Current violation flag5.9%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Montgomery

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Aqua Pa Main SystemPA1460073822,600Surface waterNo current violation flagged
North Penn Water AuthorityPA146003491,941Surface water purchasedNo current violation flagged
Pa American NorristownPA146004688,885Surface waterNo current violation flagged
North Wales Water AuthorityPA146004872,496Surface waterNo current violation flagged
Pottstown Borough Water AuthPA146003736,000Surface waterNo current violation flagged
Horsham Water&Sewer AuthorityPA146003326,000Surface water purchasedNo current violation flagged
Ambler Boro Water DeptPA146002020,000Surface waterNo current violation flagged
Aqua Pa HatboroPA146002812,901Surface water purchasedNo current violation flagged
Aqua Pa Superior Main SystemPA146008511,400Surface water purchasedNo current violation flagged
Collegeville Trappe Joint PwdPA14600228,470Ground waterNo current violation flagged
Pa American AudubonPA14600558,200Surface water purchasedNo current violation flagged
Telford Borough AuthorityPA14600507,700Surface water purchasedNo current violation flagged
Schwenksville Borough AuthPA14600425,200Surface water purchasedNo current violation flagged
Upper Hanover Water AuthorityPA14600364,600Ground waterOther current violation flag
Aqua Pa Perkiomen TownshipPA14600693,600Ground waterNo current violation flagged
E Greenville Boro Water DeptPA14600233,100Surface waterNo current violation flagged
Red Hill Water AuthorityPA14600392,500Ground waterNo current violation flagged

02 / SOURCE MIX

Surface water6 systems · 1,043,081 served
Surface water purchased7 systems · 163,342 served
Ground water4 systems · 19,170 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.