County drinking water records

Allegheny County, PA drinking water systems

38 community water systems serve Allegheny County, PA, reporting 1,959,360 people served in all. A system that also serves other counties counts all of its customers here.

21 of them (55%) had at least one health-based violation in the last 10 years. 4 systems still have one unresolved.

6 rely mainly on groundwater and 32 on surface water, counting water bought from other systems.

35 systems filed a lead service line inventory listing 31,040 lead lines, 4,568 galvanized lines that must be replaced and 341,520 lines of unknown material.

2 more systems are placed in Allegheny 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
38
People served, sum of each system's own figure
1,959,360
Systems with a health-based violation, last 10 years
21
Systems with one unresolved
4
Lead service lines in inventories
31,040

Water systems serving Allegheny County

38 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
PA Amer Water Co-Pittsburgh Pittsburgh, Jefferson Hills and 76 more and land outside them 686,000 Surface water 1 0 3,897
Pittsburgh Water & Sewer Auth Pittsburgh and Millvale 520,000 Surface water 2 0 20,961
West View Water Authority Franklin Park, Allison Park and 8 more and land outside them 200,000 Surface water 2 0 636
Wilkinsburg-Penn JT Water Auth Wilkinsburg, Churchill and 11 more and land outside them 125,000 Surface water 1 0 3,704
Hampton Shaler Water Authority Allison Park, Glenshaw and 1 more and land outside them 61,949 Purchased surface water 0 0 234
Monroeville Municipal Auth Monroeville 48,500 Purchased surface water 1 0 0
Oakmont Water Authority Oakmont, Bairdford and 4 more and land outside them 39,901 Surface water 0 0 0
Moon Twp Muni Auth Carnot-Moon and land outside it 38,000 Surface water 1 0 0
West Cnty Muni Auth-McKeesport White Oak, McKeesport and 3 more 32,644 Surface water 0 0 1,450
Plum Boro Muni Auth Plum 27,500 Purchased surface water 1 0 0
Western Allegheny County Mun A Imperial, Noblestown and 2 more and land outside them 19,031 Purchased surface water 2 0 0
Fox Chapel Auth Fox Chapel 18,500 Purchased surface water 0 0 16
Robinson Twp Muni Auth Outside cities and towns 16,354 Surface water 0 0 0
Creswell Heights JT Auth South Heights and land outside it 15,000 Groundwater 1 0 0
Harrison Twp Water Auth Natrona Heights and Natrona and land outside them 13,411 Surface water 0 0 0
Findlay Twp Municipal Auth Imperial, Clinton and 1 more and land outside them 11,460 Purchased surface water 1 1 0
Richland Twp Water Authority Gibsonia and Bakerstown and land outside them 10,190 Purchased surface water 0 0 0
Edgeworth Boro Muni Auth Bell Acres, Edgeworth and 2 more 7,781 Purchased surface water 2 0 0
Sewickley Boro Water Auth Sewickley Heights, Sewickley and 1 more 6,800 Groundwater 1 1 8
Neville Twp Water Dept Outside cities and towns 6,750 Purchased surface water 0 0 0
Coraopolis Water & Sewer Auth Coraopolis 5,804 Purchased surface water 0 0 49
Duquesne Water Dept Duquesne 5,565 Purchased surface water 7 1 No inventory
Tarentum Boro Water Dept Tarentum 4,927 Surface water 3 0 0
Fawn Frazer JT Water Auth Outside cities and towns 4,650 Purchased surface water 4 0 0
Brackenridge Boro Water Dept Brackenridge 3,700 Surface water 2 0 0
Springdale Boro Water Dept Springdale 3,405 Groundwater 0 0 0
Reserve Twp Water Dept Outside cities and towns 3,204 Purchased surface water 0 0 12
Harmar Twp Muni Auth Outside cities and towns 3,200 Groundwater 0 0 0
Aspinwall Boro Water Dept Aspinwall 3,151 Purchased surface water 2 2 72
VA Healthcare System Heinz Pittsburgh 3,112 Purchased surface water 0 0 0
Blawnox Boro Water Dept Blawnox 2,200 Purchased surface water 26 0 1
Aleppo Twp Auth Glenfield and Sewickley Hills and land outside them 2,200 Purchased surface water 0 0 0
East Deer Twp Water Dept Outside cities and towns 2,000 Purchased surface water 3 0 0
Cheswick Boro Water Dept Cheswick 1,861 Purchased groundwater 0 0 0
Braddock Boro Water Auth Braddock 1,708 Purchased surface water 4 0 No inventory
Township of Springdale Harwick and land outside it 1,600 Purchased groundwater 1 0 0
Oakdale Boro Water Dept Oakdale 1,459 Purchased surface water 0 0 No inventory
Virginia Hills PA LLC Enlow 843 Purchased surface water 0 0 0

Systems placed by county record in Allegheny County

2 systems

EPA has no service area map for some of these systems, and the maps it has for the others 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
Redwood Estates PA LLC County on record 725 Purchased surface water 0 0 0
Carson Towers County on record 266 Purchased surface water 0 3 0

Cities and towns in Allegheny County

104 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