Click a project for more information.

 

Abandoned Mine Drainage Projects

Aylesworth Creek Restoration
Jermyn Mine Drainage Outfall Endwall
Community Outreach Program
Water Quality Monitoring Programs


 

Scranton Sewer Authority

SSA Long Term Control Plan


 

Lackawanna River Basin Sewer Authority Projects

Lackawanna River Basin Sewer Modeling Project
Throop Diversion Chamber Modifications
Throop Diversion Chamber CSO Disinfection System
Throop SCADA System
Throop Pump Station Replacement
Vandling and Richmondale Pumping Station Rehabilitations
Clinton WWTP Wet Weather Treatment System
Yucca Flats Interceptor Replacement
Throop Interceptor/ CSO Model
Throop Diversion Chamber Disinfection
Moosic #1 Pump Station Emergency Generator Installation
Simpson Pump Station Emergency Generator Installation
Barrett Street Stormwater Separation Project
Moosic CSO Manhole #1 Improvements
Carbondale CSO Manhole #21-A Improvements
 

 

 

Aylesworth Creek Restoration Project Summary

The Aylesworth Creek Reservoir Park, Lackawanna County, Pennsylvania is a community recreational resource used for fishing, swimming and boating.  Contaminated water from abandoned anthracite mines feeds the park’s lake then discharges to the West Branch of Aylesworth Creek before draining to the Lackawanna River.  To improve water quality in both the lake and the receiving waters, the malfunctioning revolving drum/limestone douser system was replaced with a simple underground oxic limestone drain treatment system.  The new system will utilize the existing intake structure/piping constructed with the original system in 1983 to convey the tainted water into the new system.  There, twenty-five thousand cubic feet of limestone is used to elevate the pH of the tainted water before it enters the lake.  This simple new buried system has no moving parts, requires minimal maintenance, is no longer vulnerable to vandalism or freezing weather conditions and is designed to function for at least twenty years.

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Jermyn Mine Drainage Outfall Endwall Project Summary

The Jermyn Mine Drainage Outfall End Wall Project is located on Old Mill Road in Jermyn, Pennsylvania. The project consists of removing and replacing deteriorating sections of an existing concrete mine drainage pipe that discharges mine water to the Lackawanna River.  A new reinforced concrete junction box and temporary bypass pipe are being installed to divert mine water and storm water around the project area during construction.  New circular concrete pipe will be installed between the junction box and a new reinforced concrete end wall, to replace the deteriorating sections of pipe. An existing Borough storm water pipe will also be terminated at the new endwall.  A duck-bill check valve will be installed on the end wall at the end of the mine outfall to control sulphur odors emanating from the mine outfall. After the new pipes and end wall are installed, the temporary bypass pipe will be removed.  Rock will be installed along the river bank, both upstream and downstream of the end wall, to stabilize the bank and minimize erosion.

 

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SSA Long Term Control Plan Project.
 

The Scranton Sewer Authority waste water treatment plant accepts wastewater from Scranton and Dunmore.  Scranton and Dunmore use a drainage system that contains combined flows of both wastewater and storm water.  During storm events, these combined drainage systems overflow into local rivers and streams.  These overflow events and the locations where they occur are known as combined sewer overflows (CSO).


The Scranton Sewer Authority and the Lackawanna Watershed Program have developed and evaluated different economically viable wastewater system improvements to control these Combined Sewer Overflows in compliance with Pennsylvania and Federal Combined Sewer overflow policies and other applicable environmental quality and regulatory requirements. This information was compiled and will be reported in the SSA Long Term Control Plan.


The Long Term Control Plan also involved developing a computer model of the sewer systems for Scranton and Dunmore.  In order to get the data needed for the model, the Program installed flow monitors along the length of the Lackawanna River and the water bodies leading into it.  The results of the flow monitoring were used in a model that simulated what happens in the sewer system during normal (dry-weather) and storm conditions.  The model was then used to determine which of the different alternatives would allow the least amount of overflow into the river.


The Long Term Control Plan will propose upgrades throughout the collection and conveyance system as well as at the Wastewater Treatment Plant. The implemented upgrades will reduce Combined Sewer Overflows to the Lackawanna River and several tributaries, which will improve the water quality of these waters and benefit aquatic and aesthetic resources.

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Community Outreach Program

The community outreach program includes efforts by the Program to provide information about the Program to the public, increase media coverage and other methods of information transfer to about Program activities.

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Water Quality Monitoring Programs

The Lackawanna Watershed Monitoring Programs were developed to acquire data and information to support design and construction of improvement projects within the watershed.  The information attained included flow and water quality data collected in the Lackawanna River during dry and wet weather conditions, Abandoned Mine Drainage data used to access impacts on water quality and Bio-monitoring used to determine present conditions in the Lackawanna River.

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Lackawanna River Basin Sewer Authority Modeling Project

LRBSA in Throop, Pennsylvania contracted with MWH to develop a combined sewer hydraulic model to assess the existing conditions of the combined sewer system and to evaluate reducing CSO discharges to the Lackawanna River during wet weather events. 

The collection system will include 16 CSO regulators, 36 sub-catchments, 2 pump stations and represent approximately 6,000 acres, and 7 miles of interceptor sewer.

MWH obtained existing data from LRBSA, completed field surveys of the existing sewer system, and installed flow meters at 15 locations throughout the system to better understand flow levels during wet and dry conditions.  Two rain gages were installed within the model area to collect and calibrate Doppler rain data.

Prior to implementing capital improvements, the model will be used to optimize the existing system to ensure that the system is being utilized effectively as possible.  The analysis will produce recommendations for low-cost, immediate improvements for system optimization.  In addition, the model will be used to evaluate the hydraulic limitations of the wastewater treatment plant and the feasibility of treating CSO discharges at the plant versus at remote locations throughout the collection system. Alternatives analysis and recommendations to the client are expected to be completed by late 2006.

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Project:  Throop Diversion Chamber Modifications

Location:  Dickson City Borough

Description:   Provided automatic mechanical screening of the main combined sewer overflow used to regulate flow to the Throop wastewater treatment plant.  The screen removes solids and debris from the CSO flow preventing its discharge to the Lackawanna River.

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Throop Diversion Chamber CSO Disinfection System Project

In 2003, the Lackawanna River Basin Sewer Authority (LRBSA) completed an improvement project at their main flow regulating diversion chamber located off Enterprise Street, adjacent to the Lackawanna River, in Dickson City, Pennsylvania.  That project entailed installation of a mechanical screening device and flow monitoring equipment at the combined sewer overflow.

The Throop Diversion Chamber CSO Disinfection System Project provides additional treatment with the construction of a chlorine disinfection system to reduce fecal coliform levels in the combined sewer overflow discharging to the Lackawanna River.  This system consists of a 32 feet by 17 feet by 5.5 feet deep reinforced concrete contact basin with a high rate flash mixer.  A split-faced block building will house a chlorine storage and delivery system and sampling equipment.  When a combined sewer overflow event occurs, monitoring equipment will signal the chlorine storage and delivery system to dispense sodium hypochlorite to the contact basin.  Mixing equipment in the contact basin will disperse the chlorine in the combined sewer overflow, killing the bacteria and thereby reducing the fecal coliform levels entering the Lackawanna River.

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Project:  Throop SCADA System

Location:  Various

Description:   Installed a computerized SCADA (Supervisory, Control and Data Acquisition) system based at the Throop wastewater treatment plant which allows remote monitoring of status and alarms at LRBSA facilities including pumping stations and associated CSO.s.  Communicating via standard phone lines, this system allows potential problems to be identified and corrected promptly to reduce the likelihood of sewage overflows.  The SCADA system provides a platform  allows future expansion to integrate new facilities.   

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Project:  Throop Pump Station Replacement

Location:  Throop Borough

Description:  The project replaced and reconfigured an existing CSO pump station to convey CSO flow directly to the headworks of Throop wastewater treatment plant completely eliminating a CSO discharge to the Lackawanna River.

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Project:  Vandling and Richmondale Pumping Station Rehabilitations

Location:  Vandling Borough and Fell Township (Richmondale)

Description:   The project refurbished the electrical and mechanical systems at both pumping stations to increase capacity and improve reliability.  Standby emergency generators were installed at each station to allow the facilities to maintain operation in the event of a power loss, thereby preventing a discharge of sewage from the CSOs.  The stations were integrated into the SCADA system to allow operation and alarms to be monitored remotely from both the Clinton Township and Throop treatment plants.  The  benefits of these projects included a reduction in the frequency and volume of combined sewer overflows at these pump stations.

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Project:  Clinton WWTP Wet Weather Treatment System

Location:  Clinton Township (Browndale)

Description:   The project constructed a CSO treatment system prior to the main Clinton treatment plant to treat excess combined sewage flows.   CSO treatment includes a mechanical screen to remove debris and large solids, a vortex separator tank to capture settleable material and hypochlorite disinfection prior to discharge.  New facilities were constructed for the storage and handling of disinfection chemicals and for the removal of grit prior to the treatment plant. 

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Project:  Yucca Flats Interceptor Replacement

Location:  Forest City Borough and Clinton Township (Browndale)

Description:   The project replaced and increased the capacity of over 4,000 feet of interceptor sewer pipe.  This project allowed for the conveyance of additional combined sewage to the new wet weather treatment system at the Clinton wastewater treatment plant and allowed the abandonment of five (5) permitted CSOs

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Project:  Throop Interceptor/ CSO Model

Location:  Various

Description:   Developed a hydraulic computer model of the interceptor and CSO system tributary to the Throop wastewater treatment plant.  Using flow monitoring and rainfall data, the model was developed and calibrated to simulate and predict performance of the system in response to rainfall events.  The model was required by PADEP and EPA as an element of the CSO Long Term Control Plan and is used to demonstrate compliance with CSO policy goals and as a tool to identify and develop necessary future improvements.

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Project:  Throop Diversion Chamber Disinfection

Location:  Dickson City Borough

Description:   The project will construct disinfection facilities at the main combined sewer overflow used to regulate flow to the Throop wastewater treatment plant.  The project will allow disinfection treatment of the existing CSO using hypochlorite solution prior to discharging the flow to the river.

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Project:  Moosic #1 Pump Station Emergency Generator Installation

Location:  Moosic Borough

Description:   The project will install a standby emergency generator at the existing sewage pumping station to maintain operation in the event of a power loss, thereby preventing a discharge of sewage to the Lackawanna River from the CSO.

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Project:  Simpson Pump Station Emergency Generator Installation

Location:  Fell Township (Simpson)

Description:   The project will install a standby emergency generator at the existing sewage pumping station to maintain operation in the event of a power loss, thereby preventing a discharge of sewage to the Lackawanna River from the CSO.  In addition a flow meter will be installed on the CSO outfall to monitor and record CSO volumes.

Status:  Under design.  Estimated bid date Spring 2007

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Project:  Barrett Street Stormwater Separation Project

Location:  Jessup Borough and Olyphant Borough

Description:  The project will disconnect stormwater from the sanitary sewer system and redirect it to a separate storm sewer system.

Status:  Under design.  Estimated bid date Summer 2007

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Project:  Moosic CSO Manhole #1 Improvements

Description:   The project is located at the upstream end of the Moosic sanitary sewer collection system interceptor, along the east bank of the Lackawanna River in Moosic Borough.  The existing regulator does not provide effective flow control which adversely impacts downstream pumping facilities.

 

The project will improve the existing CSO by installing an automatic mechanical screening device to remove solids and debris from the CSO discharge to the Lackawanna River, provide automatic regulation of sewage flow and monitor and record CSO flow data. During overflow events, the flow regulating valve will limit the discharge so that the capacity of the interceptor is not exceeded and downstream hydraulic impacts are alleviated.

Status:  Under design.  Estimated bid date Spring 2007

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Project:  Carbondale CSO Manhole #21-A Improvements

Location:  Carbondale City and Fell Township (Simpson)

Description:   The project will improve the existing CSO by installing an automatic mechanical screening device to remove solids and debris from the CSO discharge to the river, provide automatic regulation of sewage flow and monitor and record CSO flow data.  In addition the project will replace and upgrade approximately 1,300 feet of interceptor sewer pipe to increase capacity.

Status:  Under design.  Estimated bid date Fall 2007.

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