Peters Township Sanitary Authority -- Pittsburgh, PA
Peters Township Sanitary Authority
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Brush Run Facility

Design Flow: 2.0 MGD

Annual Volume Treated: 478.7 million gallons

Annual Power Bill: $84,800


Pollutants Removed

BOD:   948,635 lbs.     (97.6% removal) 

TSS:    802,562 lbs.     (96.4% removal)

Ammonia Nitrogen: 67,233 lbs. (99% removal)


Municipal Wasteload Management Reports

The Pennsylvania Code 25, Chapter 94 requires annual reports to be filed with the PA DEP. The Chapter 94 requires owners of sewage facilities to project, plan, and manage future hydraulic, organic, and industrial waste loadings to their sewage facilities.

2013 Municipal Wasteload Management Report (PDF 3190 KB)







Brush Run Water Pollution Control Plant

The Brush Run WPCP plant is located on Valleybrook Road near Rt. 19. The plant's hydraulic design capacity is 2.0 million gallons per day (MGD) and its organic design capacity is 3,956 lb/day Biochemical Oxygen Demand (BOD). 

The original plant was constructed in 1964 and has been expanded several times with the most recent expansion and upgrade being placed into operation in 1995 at its current capacity.  The WPCP’s capacity is intended to accommodate the projected customer growth in the Brush Run Watershed of Peters Township through the design year 2010.  It is noted that population growth projections for the initial design have not been realized; infiltration and inflow control and prudent operation of the Brush Run WCPC have extended the design year and useful life well beyond the initial design.

Since being placed into operation in 1995, the plant’s final effluent discharge has met its NPDES Permit discharge limits 100% of the time.  The plant is constantly monitored by a combination of personnel and a SCADA (Supervisory Control and Data Acquisition) System. This system notifies staff automatically of any problems or failures

Brush Run Current Project Update

In 2009, the Pennsylvania Commonwealth Financing Authority awarded a H2O Grant of $600,000 for the Brush Run Plant Wet Weather Improvements Project. The Authority’s project includes the construction of an additional process treatment tank as well as modifications to existing process tanks to improve performance during peak wet weather events. These improvements will provide for the continued high quality treatment of the wastewater and will accommodate service area growth through 2020. The total project cost is $1.5 million and is currently in the design and permitting stage. Details for the current project are updated at Brush Run Improvements

Treatment Process

The plant provides advanced secondary treatment with the treatment process consisting of screening followed by the conventional activated sludge process, followed by disinfection and dechlorination, and finally, effluent aeration. Biological solids produced in the treatment process are stabilized by aerobic digestion, dewatered by belt filter pressing, and disposed of at a sanitary landfill. For more details on the treatment process, view Brush Run Flow Schematic (.jpg)

Treatment Plant Performance

Download Brush Run Discharge Graph 2012 (PDF)


NPDES Permit Limits

2014 Annual Average


2.0 Million Gallons Daily

 1.31 Million Gallons Daily

(Biochemical Oxygen Demand)  

Summer – 20 mg/l
Winter – 25 mg/l

6 mg/l     
(milligrams per liter)

Suspended Solids

30 mg/l     

7 mg/l     

Ammonia Nitrogen

Summer – 20 mg/l
Winter –4.5 mg/l

0.2 mg/l     

(Total Residual Chlorine)

0.05 mg/l     

0.03 mg/l     

Laboratory and Proficiency Testing

Visit PTSA Laboratory for complete details on our process.

Lab DMRQA Summary (PDF)


Current Projects


Brush Run Improvements

Donaldson Crossroads

Piney Fork Planning

Valley View Extension

Photo Gallery

Brush Run WPCP