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XCEL Site Plan- Phase 4 Page 5 Building Architecture In August 2011, the City Council adopted the Commercial and Industrial Design Guidelines. The design of the building meets the intent of the guidelines. The training barn and proposed addition are tucked behind the training center, which is meant to be the main focus of the site. The building design includes horizontal and vertical projections, color variation, aggregate textured building material, and windows. The building material for the addition consists of integrally colored precast tip -up concrete panels. The intent is to ensure the building is constructed of quality materials that require minimum maintenance. The applicant has provided elevations that show various coloration and patterning in design of the concrete panels. There will be prefinished metal awning over the overhead door on the northeast elevation. The building colors include off-white, brown, and red for the building materials. The color variation helps break up the massing of the building and the colors are complimentary. The colors shall be same as the previously approved training center and training barn. Signage The applicant is not proposing any signage at this time. Prior to the installation of any signs, the applicant shall obtain a sign permit. Drainage/Grading Treatment for stormwater runoff is provided for the full future build -out of the site (50,000 square foot building) consistent with Rice Creek Watershed District Rules and City Policies. An infiltration basin and a pre-treatment basin has been constructed to help retain stormwater runoff from the site. Most of these treatment facilities are constructed on Outlot B south of the subject site, with a portion of the pre-treatment basin on the proposed site. Phase 4 includes additional improvements that increases the impervious surface areas. The applicant states that the existing stormwater management facilities have the capacity to treat some of the additional impervious surfaces areas. Staff is requesting that the applicant complete an as -built survey of the pond to confirm the available storage. The applicant is proposing a new treatment area located south of the proposed expanded training area. Staff will continue to work with the applicant on the size, location, and design of the proposed new treatment areas. The applicant will be responsible for maintaining stormwater facilities and vegetation proposed as a part of the project. A maintenance agreement for the stormwater facilities approved by the City has been executed by the owner(s) and recorded against the property. The applicant is proposing an internal roof drains for the building. Staff will continue to work with the applicant on how the system is integrated into the building design. Utilities