CWA Fishing Headquarters
The Chester Water Authority’s Fishing Headquarters modular building was built in the mid 1980’s, approaching 40 years old. Its aged condition necessitated replacement. A similar building of size and configuration was selected, and the existing building was replaced with a new facility that included updated amenities and efficiencies. The project was completed in October of 2022.

Security Card Access System
The Chester Water Authority’s Octoraro Water Treatment Plant was the recipient of a Physical Access Control system that was installed at the Plant as well as support buildings. The system controls access to doors, walk-up and drive-up gates, and provides status and reporting capabilities for all monitored access points.  Access is allowed/restricted to each access point on a per user basis. All exterior doors and select high security areas within the treatment plant were provided with a keycard access system that can be monitored and maintained from a central location.

Jennersville Tank
The Chester Water Authority’s Jennersville Tank is a 450,000 gallon steel ground storage tank located in West Grove, PA. The tank is 52 feet in diameter and the shell height is 30 feet. The tank was rehabilitated with the interior surfaces being completely cleaned and repainted. The exterior surfaces were spot cleaned and completely repainted. Work included installation of safety and vandal deterrent devices.

Village Green Tank #7
The Chester Water Authority’s Village Green Tank #7 is a 10,000,000 gallon steel ground storage tank located in Aston, PA. The tank is 232 feet 6-inches in diameter and has a shell height of 32 feet 6-inches. The tank was rehabilitated. The interior and exterior surfaces were completely cleaned and repainted. Work included installation of safety and vandal deterrent devices.

Reservoir Intake Sluice Gate Replacement
The 54-inch sluice gate on the intake pipe at the Octoraro Reservoir was replaced. The value of the project is approximately $191k. All the work was done by divers approximately 40 feet below the surface working to remove the existing gate and lift it out by crane and then install the new gate. This large gate valve is necessary for the safety of the dam and for maintenance work. Remington and Vernick Engineers oversaw Marine Technologies Inc. for this project.

Tainter Gate Improvements
In 2020 Alltech Engineering working with Gannett Fleming finished a multi-year rehabilitation project on the tainter gates at the Pine Grove Dam. In the prior year, steel members on both gates were replaced and Gate #1 was painted. In 2020 Alltech finished the project by fully painting Gate #2 and replacing the mechanical lifting gear for both gates. The total value of the project is over $2.8M. The gates are necessary to release water from the Pine Grove Dam during floods in order to prevent a dam failure. The existing gates and mechanical lifting gear are over 70 years old and the work completed is expected to extend their useful life for at least a couple more decades.

Plant Supervisory Control and Data Acquisition (SCADA) Network Upgrades
Chester Water Authority replaced outdated communication networks and programmable logic controllers (PLCs) for the industrial control system at the Octoraro Water Treatment Plant with new equipment and systems. The project cost over $1.0M to complete. The control systems for chemical treatment, the hydroelectric generating station, the power substation, the finished water quality monitoring, among several other important Plant functions were all rebuilt with this project. Keystone Engineering Group collaborated with Optimum Controls Corporation for the work.

Plant Emergency Power System Upgrades
This project improved the reliability and redundancy of the electrical power distribution at the Octoraro Treatment Plant. Old equipment including transfer switches and distribution panels that have been prone to failure were replaced.  Unnecessary and unused equipment was removed, and connections made to allow the Ashville Road Pump Station Emergency Generators to power more plant equipment.

Susquehanna Pump #1 Replacement
One of the three 15 MGD pumps at the Susquehanna Raw Water Pumping Station was removed and rebuilt. The total cost of the job is expected to be about $120k. Chester Water Authority worked with A.C. Schultes to complete the job.

Tainter Gate Improvements
This project will continue into 2020 and the total contract value is over $2.39M not including engineering. In 2019 all of the structural work on the tainter gates at the dam was completed including replacing areas that had corroded and improving the structure to current design standards. We also blasted and painted one of the gates to protect the metal for the future. Work included divers installing the floating bulkhead weighing over 50 tons.

Substation Transformer Replacements
The incoming power for all the plant has two large transformers that weigh over 16 tons each. Both were replaced to improve reliability and can back up each other. Total job value is over $600k.

Transmission Main Air Release Valve Replacements
In 2019 we replaced the pits and air release valves in 73 locations. This work improved reliability and safety of these facilities and put the transmission main in better condition. Total job value is over $3M.

Filter Building Roof Replacement. In order to keep the plant in good condition, we need to maintain the building structures. In 2019 the roof over the 12 filters was replaced. Total job value is over $300k.

Generator #3 Replacement
 In order to ensure power reliability especially during storms, emergency generators are crucial. In 2019 we replaced Generator #3 to make the emergency generator for the majority of our treatment chemical feeds more reliable. This included a diesel tank to ensure at least 24 hours of operation before running out of fuel. Job amount was approximately $100k.