Tap Truth EPA drinking water records, in plain English

County drinking water records

Montgomery County, PA drinking water systems

37 community water systems serve Montgomery County, PA, reporting 1,275,460 people served in all. A system that also serves other counties counts all of its customers here.

11 of them (30%) had at least one health-based violation in the last 10 years. 5 systems still have one unresolved.

22 rely mainly on groundwater and 15 on surface water, counting water bought from other systems.

35 systems filed a lead service line inventory listing 183 lead lines, 7,371 galvanized lines that must be replaced and 141,583 lines of unknown material.

2 more systems are placed in Montgomery County, PA by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
37
People served, sum of each system's own figure
1,275,460
Systems with a health-based violation, last 10 years
11
Systems with one unresolved
5
Lead service lines in inventories
183

Water systems serving Montgomery County

37 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Aqua PA Main System King of Prussia, Plymouth Meeting and 64 more and land outside them 822,600 Surface water 2 0 98
North Penn Water Authority Harleysville, Kulpsville and 5 more and land outside them 91,941 Purchased surface water 0 0 34
PA American Norristown Norristown, Trooper and 7 more and land outside them 88,885 Surface water 0 0 43
North Wales Water Authority Montgomeryville, Blue Bell and 4 more and land outside them 72,496 Surface water 0 0 2
PA American Royersford Oaks, Royersford and 3 more and land outside them 49,508 Surface water 1 0 6
Pottstown Borough Water Auth Pottstown, Pottsgrove and 2 more 36,000 Surface water 2 0 No inventory
Horsham Water&Sewer Authority Horsham and Maple Glen and land outside them 26,000 Purchased surface water 1 0 0
Ambler Boro Water Dept Ambler, Fort Washington and 1 more and land outside them 20,000 Surface water 0 0 0
Aqua PA Hatboro Hatboro and land outside it 12,901 Purchased surface water 0 0 0
Aqua PA Superior Main System Halfway House and Gilbertsville and land outside them 11,400 Purchased surface water 0 0 0
Collegeville Trappe Joint PWD Trappe and Collegeville 8,470 Groundwater 1 0 0
PA American Audubon Audubon 8,200 Purchased surface water 0 0 0
Schwenksville Borough Auth Spring Mount and Schwenksville 5,200 Purchased surface water 1 0 0
Upper Hanover Water Authority Pennsburg and land outside it 4,600 Groundwater 0 20 0
Aqua PA Perkiomen Township Outside cities and towns 3,600 Groundwater 0 0 0
E Greenville Boro Water Dept East Greenville 3,100 Surface water 0 0 0
Red Hill Water Authority Red Hill and land outside it 2,500 Groundwater 0 0 0
Village of Neshaminy Falls Outside cities and towns 1,300 Purchased surface water 0 2 0
Parkhouse Nursing & Rehab Ctr Outside cities and towns 1,200 Groundwater 2 0 0
Aqua PA Perkiomen Woods Outside cities and towns 1,100 Groundwater 0 0 0
Aqua PA Upper Providence Mont Clare 810 Purchased surface water 0 0 0
Frederick Living Outside cities and towns 640 Groundwater 0 3 0
Perkiomen Crossing Outside cities and towns 508 Groundwater 0 0 0
Aqua PA Superior Center Point Outside cities and towns 500 Groundwater 1 1 0
Green Hill MHP Outside cities and towns 323 Groundwater 0 0 0
Avante Apartments Gilbertsville 315 Groundwater 0 0 0
Awc Valley Forge Crossing MHP Audubon and land outside it 250 Groundwater 0 0 0
Hilltop Mobile Estates Sanatoga 220 Groundwater 0 0 0
Yerkes Water Association Outside cities and towns 165 Groundwater 9 1 No inventory
Aqua PA Superior Ivy Ridge Outside cities and towns 150 Groundwater 0 0 0
Spruce Court Apartments Royersford 139 Groundwater 0 0 0
Oak Grove Park MHP Outside cities and towns 130 Groundwater 0 0 0
Windhaven MHP Sanatoga 112 Groundwater 0 0 0
Wooded Ridge Development Green Lane and land outside it 90 Groundwater 1 0 0
Saint Luke Knolls Gilbertsville 50 Groundwater 0 0 0
Pleasant Run MHP Outside cities and towns 32 Groundwater 0 0 0
Wec International Outside cities and towns 25 Groundwater 3 0 0

Systems placed by county record in Montgomery County

2 systems

The service area maps EPA has for these systems do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Telford Borough Authority County on record 7,700 Purchased surface water 0 0 0
Dock Woods Community County on record 72 Purchased surface water 0 0 0

Cities and towns in Montgomery County

68 places

Back to Pennsylvania

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations