Client: Berkeley County Public Service Water District
Year Completed: 2009
Project Cost: $18,500,000
Gwin, Dobson & Foreman, Inc. designed one of the state’s most technologically advanced water treatment plants for the Berkeley County Public Service Water District. Located in the fast growing eastern West Virginia Panhandle, the District serves more than 18,000 customers in suburban Martinsburg.
The plant ensures the Water District’s future compliance with the USEPA Long Term 2 Enhanced Surface Water Treatment Rule and State 2 Disinfection Byproducts Rule.
The $18.5 million project included the following unique elements:
- The plant uses advanced treatment technology for advanced particle removal, control of disinfection byproducts, taste odor, color, bacteria and pathogen removal/inactivation.
- The Potomac River water source has seasonal high levels of total organic carbon and turbidity. Pretreatment in the form of enhanced coagulation serves to reduce TOC and turbidity levels before membrane filtration.
- Unit operations include coagulation, flocculation, sedimentation; submerged membrane filtration, ultraviolet disinfection, waste holding lagoons, chlorination, chemical feed systems and clearwell capacity for contact time. All systems were pilot tested to verify process design assumptions.
- A state-of-the-art instrumentation and control system operates and monitors the treatment process. The user friendly system allows for maximum treatment flexibility.
- The UV disinfection system provides “log-removal credit” under the USEPA Long Term 2 Enhanced Surface Water Treatment Rule for inactivation of pathogens such as giardia and cryptosporidium.
GD&F performed pilot testing, planning, engineering, design, bidding, construction administration, construction inspection and system start-up/commissioning services. The project was completed under both the construction and engineering budgets.
The project will provide a dependable and safe drinking water supply for greater Berkeley County for many years to come.