| Business | Phone |
| Allegheny Twp Office 373 Foxburg Rd, Parker 16049 | (724) 791-9999 |
| Parker City Sewage Plant Washington St, Parker 16049 | (724) 399-2713 |
| Parker Sewage Plant 113 N River Ave, Parker 16049 | (724) 399-2713 |
| Parker Sewage Plant Wayne St, Parker 16049 | (724) 399-2713 |
| Perry Twp Office 5687 Doc Walker Rd, Parker 16049 | (814) 358-2661 |