Service Area
The
Brush Creek Wastewater Treatment Plant (WWTP) is a secondary treatment facility
using primary clarification, fine bubble aeration, final clarification, and
chlorine disinfection to treat the incoming wastewater flows.
The WWTP was designed for an average daily flow of 4.4 mgd and a peak flow of 15 mgd. It currently operates at an average daily flow of approximately 4.04 mgd.
The treated effluent is discharged into Brush Creek through Outfall 001 which is near a portion of Brush Creek which is currently affected by acid mine drainage. Brush Creek is a tributary of Turtle Creek, which eventually enters the Monongahela River.
The service area for the Western Westmoreland Municipal Authority (WWMA) includes the boroughs of Irwin, Manor, and North Irwin and portions of the townships of North Huntingdon, Penn, and Hempfield that are tributary to the WWMA interceptor sewers and waste water treatment plant (WWTP). The Ardara/Cavettsville area is tributary to the Allegheny County Sanitary Authority (ALCOSAN) system.
The total service area encompasses approximately 12,500 acres in the western portion of Westmoreland County, Pennsylvania. Considerable amounts of residential, commercial, and light industrial development, coupled with ever increasing residential development and large tracts of undeveloped land, are found throughout the service area. Most of the new development within the service area has been in North Huntingdon and Penn Townships, with minor growth within a small area in Hempfield Township and along the Route 30 corridor in Irwin Borough. The boroughs of Irwin, Manor, and North Irwin are older communities with little build-out potential.
The table below summarizes the number of equivalent dwelling units (EDUs) within each of the member municipalities from 2012 through 2022. This table also shows the WWTP design populations and the EDUs for each of the municipalities.
Area |
Plant Design Population |
Plant Design EDUs | Total EDUs-2012 | Total EDUs-2013 | Total EDUs-2014 | Total EDUs-2015 | Total EDUs-2016 | Total EDUs-2017 | Total EDUs-2018 | Total EDUs-2019 | Total EDUs-2020 | Total EDUs-2021 | Total EDUs-2022 |
Hempfield | 700 | 200 | 347 | 335 | 343 | 356 | 346 | 355 | 338 | 339 | 331 | 337 | 335 |
Irwin | 5,000 | 2,700 | 2,595 | 2,580 | 2,519 | 2,545 | 2,577 | 2,481 | 2,495 | 2,461 | 2,441 | 2,457 | 2,470 |
Manor | 2,500 | 714 | 1,289 | 1,300 | 1,326 | 1,337 | 1,347 | 1,369 | 1,369 | 1,412 | 1,417 | 1,406 | 1,413 |
North Huntingdon-Brush Creek | 20,000 | 5,714 | 6,394 | 6,321 | 6,261 | 6,360 | 6,481 | 6,440 | 6,437 | 6,383 | 6,275 | 6,249 | 6,386 |
North Huntingdon-Ardara System | NA | NA | 283 | 285 | 281 | 279 | 282 | 281 | 282 | 292 | 0 | 0 | 0 |
North Irwin | 1,300 | 371 | 397 | 397 | 397 | 397 | 398 | 398 | 398 | 397 | 397 | 398 | 398 |
Penn | 9,300 | 2,657 | 4,712 | 4,793 | 4,911 | 4,934 | 4,895 | 5,039 | 5,271 | 5,092 | 5,247 | 5,337 | 5,669 |
Total | 38,800 | 12,356 | 16,017 | 16,011 | 16,038 | 16,208 | 16,326 | 16,363 | 16,590 | 16,376 | 16,108 | 16,184 | 16,671 |
Trafford Borough Contract Customers | NA | NA | NA | NA | 48 | 48 | 48 | 48 | 48 | 48 | 0 | 0 | 0 |
All member
municipalities own and maintain their respective collector sewers and pump
stations.
Cavettsville/Ardara
System
The Cavettsville/Ardara
System is a small portion of the WWMA’s sewer system that conveys wastewater to
the ALCOSAN sewage treatment system from a portion of North Huntingdon Township
and Penn Township. This service area currently serves approximately 282
equivalent dwelling units located solely in North Huntingdon Township. The
Cavettsville/Ardara System also includes the Ardara Pump Station, which serves
the Village of Ardara, a small residential community located along Route 993 in
North Huntingdon Township. WWMA services the community of Ardara, a small
residential area of North Huntingdon Township. The Ardara Pump Station, force
main, and interceptors are owned, operated, and maintained by WWMA. Collector
sewers servicing the Ardara and Cavettsville areas are owned and maintained by
the North Huntingdon Township Municipal Authority. Due to increased costs
related to ALCOSAN’s Consent Decree with the U.S. Environmental Protection
Agency, the PA Department of Environmental Protection (PaDEP), and the Allegheny
County Health Department; and WWMA’s Consent Order and Agreement with the PaDEP,
a separate rate schedule for the Cavettsville/Ardara System was established on
October 30, 2007 (refer to Resolution No. 2007-05). The Cavittsville-Ardara System
was sold to the North Huntingdon Township Municipal Authority (NHTMA) on November 9, 2020.
The Cavittsville-Ardara and Trafford Borough EDUs were transferred to NHTMA, at that time.