Water Treatment & Filtration


Emerging contaminants that affect groundwater used for drinking water are becoming a frequent concern for water management, specifically in urban areas in the Northeast United States, where manufacturing was historically prevalent. As a result of groundwater contaminants percolating into earthen aquifers, water utilities are becoming increasingly aware and beginning to plan for enhanced treatment to eliminate emerging contaminants.

In response to a heightened reading of the emerging contaminant, Keystone was asked to design and install a 2,500 gpm granular activated carbon (GAC) system on an accelerated timeline to allow a water utility to continue utilizing its groundwater wells for public water supply. The existing 20″ ductile-Iron piping (DIP) system was reconfigured to loop in a four tank carbon filtration system, providing total relief from the emerging contaminants.

To complete the project, approximately 300 feet of 16″ HDPE pipe was installed below grade to allow for the install of the GAC system where space allowed. Keystone designed and had an elevated platform built for the pumps and piping system to keep the system out of a flood zone. The system was designed, procured, installed, and put in operation within a five week time period.