Colorado State Energy Program American Recovery and Reinvestment Act - Commercial Buildings - Denver Housing AuthorityCX(s) Applied: B5.1Date: 12/14/2010Location(s): Denver, ColoradoOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office
Office of NEPA Policy and Compliance
December 14, 2010
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CX(s) Applied: B5.1
Date: 12/14/2010
Location(s): Denver, Colorado
Office(s): Energy Efficiency and Renewable Energy, Golden Field Office
The Denver Housing Authority proposes to install a 71 ton vertical closed loop ground source heat pump system. The ground source heat pump (GSHP) system will consist of 36 boreholes drilled to a depth of 440 feet with borehole spacing of 20 feet. The welt field will be installed within the 0.4 acre site for the new South Lincoln Redevelopment Senior/Disabled High-Rise Transit-Oriented Development at 1099 Osage Street, Denver, Colorado, for which the system will provide heating and cooling. The site, which is currently vacant, is part of the existing South Lincoln Homes public housing development, which takes up the majority of the 17.5 acre parcel. The GSHP system will be installed in what will later be a parking area and landscaping. The site is adjacent to an existing light rail station. The system fluid will be a mixture of potable water and 10% methanol. A test borehole was drilled in Fall 2010 to ensure that soils were conducive.