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:

Phase I

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.

Phase II

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

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

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.