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Water Distribution System and Davis Street Pump Improvement

Low-interest loan results in improved water service.
  • Careful planning benefits the Easton water distribution system and pumping atation–Gannett Fleming

    The pumping station’s façade and landscaping complement the urban setting.

Easton Suburban Water Authority

Easton, Pennsylvania

Our Role
Planning, Distribution System Modeling, Financial Services, Identification of Capital Improvements, Design, Bid Phase, Construction Management, Resident Observation.

In Progress
In Progress
  • Planning study and modeling identify distribution system transmission needs
  • Low-interest loan funds water main and pumping station improvements
  • Water main improvements provide improved distribution reliability.

Since 1957, the Easton Suburban Water Authority (ESWA) has been providing water service to Easton’s surrounding municipalities with water from the city of Easton’s water treatment plant (WTP). In 2007, ESWA leased the Easton’s WTP and distribution system from the city and became responsible for operations and maintenance. Like many northeastern Pennsylvania communities whose utilities were installed in the late 1800s, Easton is facing the challenge of replacing outdated and undersized cast iron water mains and a pumping station. Seeking to be good stewards of their finances, and to avoid passing large fees onto residents, ESWA sought a firm to assess their needs and perform the recommended upgrades in a financially fiscal way.

What We Did

Gannett Fleming performed a planning study that assessed distribution system transmission, distribution, operational, storage, and pumping needs using a computer hydraulic model of the system developed for the study. The study provided a prioritized improvement plan to address system needs. Transmission main improvements addressed high head losses in existing mains that caused pressures that were less than allowable minimums, and also addressed vulnerability in the event of a watermain failure. A new pumping station increased permitted pumping capacity to meet maximum day demands, replace aging infrastructure, and provide emergency power. Additional water main improvements and operational recommendations improved available fire flows and eliminated unnecessary isolation valves and deadends to improve water quality and water age.  

Gannett Fleming assisted ESWA in securing low interest rate financing through the Pennsylvania Infrastructure Investment Authority (PENNVEST), then finalized the design, performed bid phase services, and construction management of 23,000 linear feet of water mains and a 2.1 mgd booster pumping station. The hydraulic model assists ESWA in refining smaller improvements being completed in-house and evaluating developer requests for water and fire protection service, trouble shooting problems encountered in the field, and operational questions.

Key Features

  • Planning study consisted of four pressure zones, four finished water storage facilities, a pumping station, approximately 75 miles of water main, and nine interconnections
  • Hydraulic model development and analysis identified critical improvements
  • Experienced coordination of financing, project schedules, and requirements avoided delays and ineligible costs
  • Service remained continuous throughout construction
  • Water main design and construction in congested area with unmarked utilities
  • New pumping station complies with capacity, emergency power, and OSHA regulatory requirements.  

Sustainability Features & Outcomes

  • Water-efficient plumbing facilities and water mains reduce loss of water
  • Energy-efficient premium efficiency motors, lighting, and wall insulation rating reduce energy bills.

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