Well for Make-up Water at CHCP
The SBT Energy Analysis Team began the process of evaluating the suitability of installing a high yield industrial well on George Mason University’s Fairfax Campus beginning June 23, 2008. The original test site was located in the area where the new townhomes for staff and faculty were being built. This site was chosen over five other locations as being the most likely to produce the capacity needed at the plant. Because the location was in an environmental preservation area with too many restrictions and too far from the plant, a suitable location was found behind the CHCP. The well has the potential of $100,000 in annual water savings. Phase III was completed on March 18, 2010. The results were 37gpm. The well was drilled to a depth of 500’. The well would be used to supply make up water for the cooling towers at the central plant. Phases I, II, and III have been completed. Phase IV will be completed in May of 2010. The details of the staged approach to implementation are as follows:
The Phase I analyses focused on reviewing the underlying geology, fracture fabric data, existing wells in the area (if they exist), a preliminary contaminant threats analyses, and an overall assessment of the potential groundwater availability/ and value of proceeding with Phase II. A review of all local, county and state code requirements for well drilling and water usage was also conducted.
The geophysical study phase is a process of actually sending magnetic signals into the earth to map the fractures and find promising drilling sites. It is believed that this phase of testing will yield sufficient information to determine the overall feasibility of producing a high yield well.
Phase III (Completed on 3/18/2010)
A. Site review by State and County Departments of Health was completed and the necessary permits were issued to go ahead with drilling the well.
B. This included all exploratory test well drilling, mobilization of equipment, drilling casing, grout, and drilling of the well. Geologist on site to supervise drilling operations and log the well with respect to rock type, location of fracture zones, mineralogy, and water supply. A final composite water sample will be submitted for water quality assessment.
Phase IV (To be completed in May of 2010)
This phase includes a long term plumbing test on the well. This test includes the rental of a generator, pump, plumbing wire, meters, valves and all other pertinent pumping equipment. A hydro geologist will be present on-site to take water level readings of the well. Water samples will be collected periodically throughout the test and analyzed of pH, iron, manganese, and conductivity.