We found 251 public water systems that could serve the same population as Western Pennsylvania Water Co (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Pa Amer Water Co-pittsburgh | County of Allegheny | 686,000 | 67 | 6 |
| Pittsburgh Water & Sewer Auth | Pittsburgh | 520,000 | 49 | 35 |
| West View Water Authority | Pittsburgh | 200,000 | 21 | 64 |
| Wilkinsburg-penn Jt Water Auth | Pittsburgh | 125,000 | 24 | 99 |
| Hampton Shaler Water Authority | County of Allegheny | 62,497 | 70 | 23 |
| Monroeville Municipal Auth | Monroeville | 48,500 | 20 | 10 |
| Oakmont Water Authority | Oakmont | 42,410 | 16 | 6 |
| Moon Twp Muni Auth | Coraopolis | 38,000 | 25 | 54 |
| West Cnty Muni Auth-mckeesport | Greensburg | 32,644 | 17 | 40 |
| Plum Boro Muni Auth | Pittsburgh | 27,500 | 32 | 8 |
| Pittsburgh Intl Airport | Pittsburgh | 26,915 | 53 | 8 |
| Hampton Twp Muni Auth | County of Allegheny | 24,546 | 0 | 0 |
| Western Allegheny County Mun A | Oakdale | 19,031 | 136 | 31 |
| Fox Chapel Auth | Pittsburgh | 18,500 | 33 | 9 |
| Robinson Twp Muni Auth | Pittsburgh | 16,354 | 30 | 91 |
| Harrison Twp Water Auth | Natrona Heights | 13,411 | 28 | 39 |
| Clearview Water Supply Company | County of Allegheny | 13,000 | 0 | 0 |
| North Versailles Twp Auth | County of Allegheny | 11,718 | 0 | 0 |
| Findlay Twp Municipal Auth | County of Allegheny | 11,460 | 0 | 34 |
| Richland Twp Water Authority | County of Allegheny | 10,190 | 0 | 4 |
| White Oak Boro Authority | County of Allegheny | 9,487 | 0 | 0 |
| Western Pa Water Co-valley | Clairton | 9,000 | 0 | 0 |
| Upmc Presbyterian | County of Allegheny | 8,200 | 0 | 3 |
| South Pittsburgh Water Company | County of Allegheny | 8,000 | 0 | 0 |
| Edgeworth Boro Muni Auth | County of Allegheny | 7,781 | 0 | 8 |
| Polar Water Company | Pittsburgh City | 7,000 | 0 | 0 |
| Sewickley Boro Water Auth | County of Allegheny | 6,800 | 0 | 51 |
| Neville Twp Water Dept | County of Allegheny | 6,750 | 0 | 16 |
| Va Pittsburgh Ud | County of Allegheny | 6,701 | 0 | 0 |
| Coraopolis Water & Sewer Auth | County of Allegheny | 6,000 | 0 | 26 |
| Duquesne Water Dept | County of Allegheny | 5,565 | 0 | 34 |
| Port Vue Water Dept | County of Allegheny | 5,316 | 0 | 0 |
| N Fayette Twp W Allegheny Wate | County of Allegheny | 5,000 | 0 | 0 |
| Tarentum Boro Water Dept | Tarentum | 4,927 | 0 | 60 |
| Upmc Magee Womens Hospital | County of Allegheny | 4,900 | 0 | 2 |
| Homestead Boro | County of Allegheny | 4,878 | 0 | 0 |
| Upmc Shadyside Hillman Campus | County of Allegheny | 4,750 | 0 | 2 |
| Fawn Frazer Jt Water Auth | County of Allegheny | 4,650 | 0 | 24 |
| Upmc Montefiore | County of Allegheny | 4,500 | 0 | 3 |
| Millvale Boro Water Dept | County of Allegheny | 4,041 | 0 | 0 |
| Stouffers Restaurant | County of Allegheny | 4,000 | 0 | 0 |
| Sharpsburg Boro Water Dept | County of Allegheny | 3,900 | 0 | 0 |
| Brackenridge Boro Water Dept | County of Allegheny | 3,700 | 0 | 36 |
| Etna Boro Water Dept | County of Allegheny | 3,594 | 0 | 0 |
| Liberty Boro Water Authority | Liberty | 3,594 | 0 | 0 |
| Snow Valley Water Company | Pennsylvania | 3,500 | 0 | 0 |
| Springdale Boro Water Dept | County of Allegheny | 3,405 | 0 | 76 |
| Reserve Twp Water Dept | County of Allegheny | 3,333 | 0 | 13 |
| Harmar Twp Muni Auth | County of Allegheny | 3,200 | 0 | 117 |
| Aspinwall Boro Water Dept | County of Allegheny | 3,151 | 0 | 4 |
| Forward Twp Municipal Auth | County of Allegheny | 3,136 | 0 | 0 |
| Va Healthcare System Heinz | County of Allegheny | 3,112 | 0 | 0 |
| East Mckeesport Water Co | East Mckeesport | 2,940 | 0 | 0 |
| Munhall Boro Water Dept | County of Allegheny | 2,800 | 0 | 0 |
| Upmc Western Psychiatric Inst | County of Allegheny | 2,645 | 0 | 2 |
| Rankin Boro | County of Allegheny | 2,506 | 0 | 0 |
| Aleppo Twp Auth | Sewickley | 2,200 | 0 | 23 |
| Blawnox Boro Water Dept | County of Allegheny | 2,200 | 0 | 17 |
| St Correctional Inst-pittsburg | County of Allegheny | 2,100 | 0 | 0 |
| Clark Building | County of Allegheny | 2,100 | 0 | 0 |
| Braddock Boro Water Auth | County of Allegheny | 2,008 | 0 | 13 |
| East Deer Twp Water Dept | County of Allegheny | 2,000 | 0 | 33 |
| Cheswick Boro Water Dept | County of Allegheny | 1,861 | 0 | 31 |
| Springdale Twp Water Dept | County of Allegheny | 1,600 | 0 | 21 |
| United States Steel-irvin Wrks | County of Allegheny | 1,500 | 0 | 0 |
| Oakdale Boro Water Dept | County of Allegheny | 1,459 | 0 | 28 |
| Century Townhomes | County of Allegheny | 1,300 | 0 | 0 |
| Dravo Water System | County of Allegheny | 1,200 | 0 | 0 |
| Dravo Water Sys | County of Allegheny | 1,200 | 0 | 0 |
| Howard Johnsons Restaurant | County of Allegheny | 1,200 | 0 | 0 |
| Bethlehem Steel Water Works | County of Allegheny | 1,200 | 0 | 0 |
| Duquesne Light Company | Pittsburgh | 1,092 | 0 | 0 |
| Oliver Building | County of Allegheny | 1,050 | 0 | 0 |
| Westinghouse Electric Corp | County of Allegheny | 1,000 | 0 | 0 |
| Wall Boro Water Department | County of Allegheny | 989 | 0 | 0 |
| Davids Diner | County of Allegheny | 900 | 0 | 15 |
| Dixmont State Hospital | County of Allegheny | 800 | 0 | 0 |
| Lincoln Boro Municipal Authori | County of Allegheny | 700 | 0 | 0 |
| Chamber Of Commerce Building | County of Allegheny | 673 | 0 | 0 |
| St Alphonsus Church School | County of Allegheny | 550 | 0 | 0 |
| Riverbend Foods Llc | County of Allegheny | 525 | 0 | 79 |
| Bakerstown First Presb Church | County of Allegheny | 500 | 0 | 0 |
| Ohara Twp Mun Water Supply | County of Allegheny | 450 | 0 | 0 |
| Northvue Water Co Inc | County of Allegheny | 315 | 0 | 0 |
| Flaugherty House | County of Allegheny | 300 | 0 | 4 |
| Pa Motor Speedway Snack Bar | County of Allegheny | 300 | 0 | 17 |
| St Barnabas Nursing Home | County of Allegheny | 275 | 0 | 0 |
| The Lodge Restaurant | County of Allegheny | 250 | 0 | 0 |
| Duquesne Club | County of Allegheny | 210 | 0 | 62 |
| Richland Soft Serve | County of Allegheny | 200 | 0 | 0 |
| Freeport Brick-allegheny Div | County of Allegheny | 200 | 0 | 0 |
| Rose Ridge Golf Course | County of Allegheny | 200 | 0 | 0 |
| Rochester Inn | County of Allegheny | 200 | 0 | 0 |
| Springdale Powr Sta | County of Allegheny | 200 | 0 | 0 |
| North Park Neighborhood Grille | County of Allegheny | 200 | 0 | 0 |
| Duquesne Light Co-phillips P S | County of Allegheny | 200 | 0 | 0 |
| Pittsburgh Forgings Co | County of Allegheny | 200 | 0 | 0 |
| Glenfield Boro Water Dept | County of Allegheny | 185 | 0 | 0 |
| Bethlehem Steel Corp | County of Allegheny | 160 | 0 | 0 |
| Carol Leone Childcare | County of Allegheny | 160 | 0 | 0 |
| Franklin Park Gc | County of Allegheny | 160 | 0 | 0 |
| Tomato Pie | County of Allegheny | 150 | 0 | 14 |
| Duquesne Light Co Cheswick Sta | County of Allegheny | 150 | 0 | 0 |
| St Andrew The Apostle Byz Cath | County of Allegheny | 150 | 0 | 0 |
| Benedum Trees Bldg | County of Allegheny | 150 | 0 | 0 |
| Bakerstown United Meth Church | County of Allegheny | 150 | 0 | 0 |
| Mt Pleasant Untd Prebsy Church | County of Allegheny | 150 | 0 | 0 |
| Tastee Freez | County of Allegheny | 150 | 0 | 0 |
| 100 Fifth Ave Bldg | County of Allegheny | 150 | 0 | 0 |
| Sisters Of Divine Providence | County of Allegheny | 150 | 0 | 0 |
| Wittmer Park Water Author | County of Allegheny | 150 | 0 | 0 |
| Tri-state Growers Exchange | County of Allegheny | 150 | 0 | 0 |
| Sisters Of Divine Providence | County of Allegheny | 150 | 0 | 0 |
| Eden Hall Farm | County of Allegheny | 150 | 0 | 0 |
| Steel City Classic Lanes | County of Allegheny | 150 | 0 | 0 |
| Roadway Tavern | County of Allegheny | 150 | 0 | 0 |
| Ch Of Christ The King | County of Allegheny | 145 | 0 | 0 |
| Broadhead Mobile Home Court #1 | County of Allegheny | 138 | 0 | 0 |
| William M Walton Mobilehome Pa | County of Allegheny | 126 | 0 | 0 |
| Coral Lounge & Lanes | County of Allegheny | 125 | 0 | 0 |
| Gateway Inn | County of Allegheny | 125 | 0 | 0 |
| Sewickley Twp Scott Haven Wate | County of Allegheny | 120 | 0 | 0 |
| Richland Mobile Home Park | County of Allegheny | 120 | 0 | 0 |
| Whole Foods | County of Allegheny | 100 | 0 | 0 |
| Four Seasons Banquet House | County of Allegheny | 100 | 0 | 0 |
| Chubbs Place | County of Allegheny | 100 | 0 | 0 |
| Willees Tavern | County of Allegheny | 100 | 0 | 0 |
| Scoreboard Lounge | County of Allegheny | 100 | 0 | 0 |
| Lennys Place | County of Allegheny | 100 | 0 | 0 |
| Fast Stop | County of Allegheny | 100 | 0 | 0 |
| Glassmere Food Mart 252 | County of Allegheny | 100 | 0 | 0 |
| Pete & Debs Recipes Remembered | County of Allegheny | 100 | 0 | 0 |
| Sea Shell Inc | County of Allegheny | 100 | 0 | 0 |
| North Fayette Satellite Maint | County of Allegheny | 100 | 0 | 0 |
| Cole's Tavern | County of Allegheny | 100 | 0 | 0 |
| Last Resort | County of Allegheny | 100 | 0 | 0 |
| Kennedy Family Restaurant | County of Allegheny | 100 | 0 | 0 |
| Bill & Ess's Tavern | County of Allegheny | 100 | 0 | 0 |
| St Barnabas Medical Center | County of Allegheny | 80 | 0 | 0 |
| Millers Mobile Home Estates | County of Allegheny | 77 | 0 | 0 |
| Alcoa Corp -logans Ferry | County of Allegheny | 75 | 0 | 0 |
| Village Inn | County of Allegheny | 75 | 0 | 0 |
| Lakeside Pub | County of Allegheny | 75 | 0 | 0 |
| Shenots Farm Mkt | County of Allegheny | 75 | 0 | 0 |
| Locust Hill Apartments | County of Allegheny | 75 | 0 | 0 |
| The Pines Tavern | County of Allegheny | 72 | 0 | 0 |
| Handee Marts Inc. | County of Allegheny | 70 | 0 | 0 |
| Venango Trail Golf Club | County of Allegheny | 70 | 0 | 0 |
| Robert Wholey Poultry And Fish | County of Allegheny | 70 | 0 | 0 |
| Cemline Corp | County of Allegheny | 60 | 0 | 0 |
| Green Valley Day Camp | County of Allegheny | 60 | 0 | 0 |
| Dinardo Trailer Court | County of Allegheny | 52 | 0 | 0 |
| Hotel Bakerstown | County of Allegheny | 52 | 0 | 0 |
| Ruth And Herbs Hotel Bar | County of Allegheny | 50 | 0 | 0 |
| Allegheny Country Rifle Club | County of Allegheny | 50 | 0 | 0 |
| Wexford Starlight | County of Allegheny | 50 | 0 | 0 |
| Millvale Sportsmans Club | County of Allegheny | 50 | 0 | 0 |
| Brush Creek Inn | County of Allegheny | 50 | 0 | 0 |
| El Rancho Drive In | County of Allegheny | 50 | 0 | 0 |
| Moon Lazer City | County of Allegheny | 50 | 0 | 0 |
| North Pole Ice Cream | County of Allegheny | 50 | 0 | 0 |
| Pittsburgh Bible Institute | County of Allegheny | 50 | 0 | 0 |
| Alpine Hunting & Fishing Club | County of Allegheny | 50 | 0 | 0 |
| Peach Garden Restaurant | County of Allegheny | 50 | 0 | 0 |
| Bpo Elks #1090 | County of Allegheny | 50 | 0 | 0 |
| Davis Brothers Trailer Court | County of Allegheny | 40 | 0 | 0 |
| Captain Wings | County of Allegheny | 40 | 0 | 0 |
| Greater Pittsburgh Jr Academy | County of Allegheny | 40 | 0 | 0 |
| Meenan Educational Center | County of Allegheny | 40 | 0 | 0 |
| Montour Motor Inn | County of Allegheny | 40 | 0 | 0 |
| Tom Henry Chevrolet | County of Allegheny | 38 | 0 | 0 |
| North Hills Deli | County of Allegheny | 37 | 0 | 0 |
| Butler's Golf Course | County of Allegheny | 35 | 0 | 0 |
| Mothers Helpers Day Care | County of Allegheny | 35 | 0 | 0 |
| Lawnvue Acres | County of Allegheny | 35 | 0 | 0 |
| Marko Trailer Court | County of Allegheny | 35 | 0 | 0 |
| Broadhead Mobile Home Court #2 | County of Allegheny | 35 | 0 | 0 |
| Moores Mobile Home Court | County of Allegheny | 32 | 0 | 0 |
| Hide Away Tavern | County of Allegheny | 30 | 0 | 0 |
| Valley Motel | County of Allegheny | 30 | 0 | 0 |
| Pitcairn Monroeville Sportsmen | County of Allegheny | 30 | 0 | 0 |
| Camp Horne Drive In | County of Allegheny | 30 | 0 | 0 |
| The Hangar | County of Allegheny | 30 | 0 | 0 |
| Pittsburgh North Golf Course | County of Allegheny | 30 | 0 | 0 |
| YOUNG WORLD INC. | County of Allegheny | 30 | 0 | 0 |
| Sloan's Carousel Marina | County of Allegheny | 30 | 0 | 0 |
| Chicos Pizza | County of Allegheny | 30 | 0 | 0 |
| Forest Grove Sportsmen Assn | County of Allegheny | 30 | 0 | 0 |
| Bakerstown Deli | County of Allegheny | 30 | 0 | 0 |
| Richland Restaurant | County of Allegheny | 30 | 0 | 0 |
| Lockhart Iron & Steel Company | County of Allegheny | 30 | 0 | 0 |
| Natoli's Presidential Inn | County of Allegheny | 30 | 0 | 0 |
| Pizza Roma | County of Allegheny | 30 | 0 | 0 |
| Wexford Inn | County of Allegheny | 30 | 0 | 0 |
| Western Pa Training Academy | County of Allegheny | 26 | 0 | 0 |
| Vincents Pizza | County of Allegheny | 26 | 0 | 0 |
| Culligan Store Sol Of Alleg Co | County of Allegheny | 25 | 0 | 0 |
| Glacier Water Serv Allegheny C | County of Allegheny | 25 | 0 | 0 |
| YOUTHTOWNE | County of Allegheny | 25 | 0 | 0 |
| Crawford Run Lake Park/apts | County of Allegheny | 25 | 0 | 0 |
| Whitebridge Personal Care Home | County of Allegheny | 25 | 0 | 0 |
| Tastee Freeze-north Park | County of Allegheny | 25 | 0 | 0 |
| Boron Oilco-retail Outlet | County of Allegheny | 25 | 0 | 0 |
| Chapa Building | County of Allegheny | 25 | 0 | 0 |
| Columbia Knights | County of Allegheny | 25 | 0 | 0 |
| B&l Ship To Shore Snackshop | County of Allegheny | 25 | 0 | 0 |
| Clubhouse Snack Bar/golf Inn | County of Allegheny | 25 | 0 | 0 |
| Dimatteo's Tavern | County of Allegheny | 25 | 0 | 0 |
| Czechoslovak Society Of Amer | County of Allegheny | 25 | 0 | 0 |
| Ackman's Lake | County of Allegheny | 25 | 0 | 0 |
| Gardner Real Estate | County of Allegheny | 25 | 0 | 0 |
| Tony & Sues Diner | County of Allegheny | 25 | 0 | 0 |
| Coulter Fire Hall | County of Allegheny | 25 | 0 | 0 |
| Jergels | County of Allegheny | 25 | 0 | 0 |
| Pine Run Outboard Club | County of Allegheny | 25 | 0 | 0 |
| Daves Tavern | County of Allegheny | 25 | 0 | 0 |
| Cindy Freid Catering Co | County of Allegheny | 25 | 0 | 0 |
| Lincoln Center | County of Allegheny | 25 | 0 | 0 |
| Ingomar Swim Club | County of Allegheny | 25 | 0 | 0 |
| Ford Enterprises Inc | County of Allegheny | 25 | 0 | 0 |
| Robbies Super Stuff Bbq | County of Allegheny | 25 | 0 | 0 |
| Turner Dairy Farms Inc | Penn Hills Mun | 25 | 0 | 0 |
| Penn-tech Water Machine-001 | County of Allegheny | 25 | 0 | 0 |
| Everpure Inc Vending Machines | County of Allegheny | 25 | 0 | 0 |
| Purified Water Allegheny Co | County of Allegheny | 25 | 0 | 0 |
| D W Envir Vending Allegheny | County of Allegheny | 25 | 0 | 0 |
| Riverview Golf Course | County of Allegheny | 25 | 0 | 0 |
| Lawnville Acres | County of Allegheny | 25 | 0 | 0 |
| Reeder's Pizza | County of Allegheny | 25 | 0 | 0 |
| Hohmann's Tavern | County of Allegheny | 25 | 0 | 0 |
| North Park Water Plant | County of Allegheny | 25 | 0 | 0 |
| Wildwood Pool | County of Allegheny | 25 | 0 | 0 |
| Hoffman Electric Inc | County of Allegheny | 25 | 0 | 0 |
| Dari-delight | County of Allegheny | 25 | 0 | 0 |
| Wellon's Restaurant | County of Allegheny | 25 | 0 | 0 |
| Weigands Tavern | County of Allegheny | 25 | 0 | 0 |
| Verelest Lake | County of Allegheny | 25 | 0 | 0 |
| Uncle Charlies Pizza | County of Allegheny | 25 | 0 | 0 |
| St Lukes Day Care Ctr | County of Allegheny | 25 | 0 | 0 |
| Northgate Plaza Ltd | County of Allegheny | 25 | 0 | 0 |
| West Penn Power Springdale Sta | County of Allegheny | 24 | 0 | 0 |
| North Fayette Municipal Bldg | County of Allegheny | 20 | 0 | 0 |
| Murrays Mobile Homes | County of Allegheny | 19 | 0 | 0 |
| Baierl Chevrolet | County of Allegheny | 12 | 0 | 0 |
| H J Heinz Water Plant | County of Allegheny | 10 | 0 | 0 |
| Turnpike Station #10 | County of Allegheny | 10 | 0 | 0 |
| N Park Water Supply | County of Allegheny | 10 | 0 | 0 |
| Millers Mobile Home Estates | County of Allegheny | 5 | 0 | 0 |
| Duquesne Light Co-brunot Islan | County of Allegheny | 4 | 0 | 0 |
| Elliottos Pizzaria | County of Allegheny | 3 | 0 | 0 |
| Marys Chuck Wagon | County of Allegheny | 2 | 0 | 0 |