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CERTIFICATE OF APPROPRIATENESS STAFF REPORT C.3. Material Additions and improvements involving any new material in the landmark should. be of the same as the' original., It should be the same size -and - = texture. An alternative material. may be allowed if it duplicates the original: - Building - Site - and Landscaping 2. Recommended New site - work should be,based upon actual knowledge of the past appearance of ..the property found in photographs, drawings, and newspapers.. RECOMMENDATION This application pertains to those exterior features of the'proposed work.at the North Pumping.Station (and reservoir) as described above - . This work may be summarized as the addition and updating of interior equipment and conversion of the south bay from industrial shop use to office space. THe latter includes some issues of egress-pertaining to the Americans with Disabilities Act.(ADA): Staff has worked closely with the staff of the Water Works and with.the A &E firm which has prepared the plans and to integrate them with - the window repair', and replacement scheme previously approved by the commission. The alterations affecting the facades - are limited to the reduction of floor structure behind multi -story windows (4" max) and and door issues at the rear.. The latter shown on drawing A /A4 of the exhibits include (proceeding left to 1) removal of existing non - historic overhead door and replacement with metal paired passage doors with a transom above. 2) construction of an additional passage door and reconstructing infill wall in cavity above. This item - requires removal of masonry hall below the existing sill to make'way for the door opening'. 3) reconstruction of infill wall in several other window cavities. 4) replacement of existing two story non - historic overhead door with new overhead door. and 5),replacement of non - historic metal doors at hoist area including' reconstruction of infill - wall in transom area above. In all cases where . window cavities have been previously.infilled with painted sheet metal covering, the rehabilitation. exterior finish is to be corrugated metal factory painted metal.-Louvers are placed in these panels as shown on.- plans for mechanical purposes. An additional item satis -fies .IN Dept. of Environmental Management removing overflow-from the stream. Alternative locations are immediately from the building on east side with discharge pipe or remote-location approximately 150 feet northwest of pedestrian bridge: An additional 24" overflow discharge - pipe, is to be located at the reservoir. Staff finds the proposal to be .thorough with regard .to accomplishing ,a' great - deal of technical - improvement for this facility with very limited affect on integrity of the existing building. All substantial affect are limited,to the rear elevation, arid: these are generally restricted to modification of- previous - alterations. Where unsightly overflow discharge pipes are required they -are placed in the most discrete locations available. Staff recommends approval.'