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HomeMy WebLinkAboutSupplemental Submission with Project Revisions_Upland Heights EXHIBIT A EXHIBIT B EXHIBIT C EXHIBIT D PROPOSED STANDARDS/REQUIREMENTS FOR PDZ Building A Building B Building C Principle Use Residential Residential Residential Accessory Use Ancillary commercial use on first floor for commercial tenants such as small eateries, a small grocery store, or larger restaurant not to exceed 5,000 square feet None Proposed None Proposed Density 22 dwelling units 8 dwelling units 8 dwelling units Building Height 37 feet, including 2 feet to accommodate decorative cornices consistent with Village architecture 37 feet, including 2 feet to accommodate decorative cornices consistent with Village architecture 27 feet, including 2 feet to accommodate decorative cornices consistent with Village architecture Yards 30 feet from property lines and public road right of way 30 feet from property lines and public road right of way 30 feet from property lines and public road right of way Lot Coverage Not to exceed 12% total Not to exceed 12% total Not to exceed 12% total Size of Lots Site is 6.07 acres Site is 6.07 acres Site is 6.07 acres Frontage > 75 feet > 75 feet > 75 feet Parking 63 spaces 32 spaces shared with Building C 32 spaces shared with Building B Natural Features Incorporated into the design to the maximum extent feasible Incorporated into the design to the maximum extent feasible Incorporated into the design to the maximum extent feasible Stormwater Runoff Shall not exceed the rate that would occur under a natural undeveloped condition as calculated for a 100 year storm and is in compliance with applicable local, State and Federal laws Shall not exceed the rate that would occur under a natural undeveloped condition as calculated for a 100 year storm and is in compliance with applicable local, State and Federal laws Shall not exceed the rate that would occur under a natural undeveloped condition as calculated for a 100 year storm and is in compliance with applicable local, State and Federal laws EXHIBIT E EXHIBIT F AN ISO 9001:2015 COMPLIANT COMPANY “We are a seamless extension of our clients’ organizations” 6700 Thompson Road, Suite 1 Syracuse, NY 13211 Tel: 315.695.7228 www.delta-eas.com Wetland Mitigation Measures The Corps of Engineers uses the Nationwide permit program for wetland impacts that are minimal in nature. This project will have minimal impacts to Corps regulated wetlands and wetland impacts have been reduced through multiple iterations in the design phase. Numerous site plans have been prepared for this project. Earlier renditions of the site plan included designs with over a half -acre of wetland disturbance. These site plans were further refined to the site plan presented to the Town Board that contemplated direct wetland disturbance of 0.128 acre. The proposed site plan has been further refined to encroach on less than 0.1 acre of wetland. Any direct wetland disturbance would require a Nationwide permit from the Corps. Wetland disturbance less than 0.1 of an acre would not require any mitigation measures from the Corps and the 401 water quality certification required by the New York State Department of Environmental Conservation would be blanketed. There are numerous opportunities to provide mitigation measures and on-site wetland improvements to wetland functions and ecological services. There are a variety of wetland functions that are considered in evaluating wetlands. Wetland functions that are provided by the onsite wetland include flood flow alteration, sediment retention, and wildlife habitat. The onsite wetland has two areas with different soil conditions. The eastern-most portion of the wetland has a deeper organic layer and with different vegetation layers. There is structure with both trees on the edge of the wetland, and shrubs and emergent vegetation in the wetland. The western portion of the wetland has a mineral soil layer with a monoculture of common cattail and a few trees. The western-most portion of the wetland provides sediment retention and wildlife habitat. The eastern-most portion of the wetland provides for some flood flow alteration as the culvert limits the discharge of water from the site. As Dave Herrick of TG Miller suggested a good option is install a weir wit hin the head wall of the parking lot. This weir would control the water level in the western portion of wetland A. The purpose of the weir is to change the hydroperiod of the wetland and to make this area wetter. Hydroperiod is the length of time a wetland holds water during the year and portion of the year that the wetland holds water. The use of a weir will allow this wetland to store additional water. Water depths could range from 6 to 12 inches. At present, this portion of Wetland A has developed due to the lack of stormwater practices from the existing apartment house complex and other developments that directly adjoin the site. This wetland would have an increased water storage capacity and could have surface water much of the time. At present, this portion of the wetland is dominated by common cattail. Common cattail has formed a dense monoculture in this portion of the wetland. Wetlands with a diversity of plant species are considered to have higher quality. We would propose to introduce a wider variety of wetland plant species in this wetland. Buttonbush (Cephalanthus occidentalis) is a shrub that does well in deep water habitats. This shrub would be one plant that we’d recommend as it does well in wetland habitats with fluctu ating water levels. On the perimeter of the wetland, we would also recommend adding additional native wetland trees and shrub species. The selection of aquatic vegetation in the wetland is depth dependent. Species such as blue flag (Iris versicolor), soft stem bulrush (Schoenoplectus tabernaemontani), and pickerelweed (Pontederia cordata) would add species diversity to the wetland and should do well with fluctuating water levels. The use of native vegetation will be recommended for all plantings. Native and locally sourced vegetation has “We are a seamless extension of our clients’ organizations” DELTA ENGINEERS, ARCHITECTS, & LAND SURVEYORS, DPC Page 2 of 2 AN ISO 9001:2015 COMPLIANT COMPANY the advantage of being adapted to the climatic conditions present in the area and will provide wildlife food value. The second major opportunity to improve wetland function and to provide flood storage will be the stormwater detention basin. This detention basin will be required as part of the stormwater management plan for the project site and will be designed as a wet pond. This stormwater feature is designed to act as a wetland. The capacity of this wet pond will far exceed the minimal amount of wetland impacts. This wet pond will be designed to provide for sediment and toxicant retention and water storage functions for excessive rain and snow melt events. Within this wet pond and its perimeter, we recommend the selectio n of native and locally sourced wetland shrubs and plants. Wetland plants will absorb nutrients and the pond will function as an emergent wetland. The third opportunity to provide mitigation measures for wetland impacts is to provide shrub plantings on the eastern edge of Wetland A next to the existing apartment complex. Shrubs will absorb water that flows from the existing developed area. These shrubs will provide for additional uptake of stormwater drainage from the existing apartment complex and will provide cover for birds. The fourth opportunity to provide mitigation measures for wetland impacts is the use of bio -filters. These bio-filters are designed to provide storage for stormwater. Other biofilter functions are filtration, infiltration, and nutrient uptake. The biofilters will be planted with shrubs and grasses. We would not propose any modification of the eastern-most portion of Wetland A as it currently has a deep organic layer and a higher diversity of wetland plant species than the western-most portion. There may be some opportunity to provide vernal pool habitat within the upland woods on the extreme southern portion of the site. However, use of this area is problematic as there appears to be no way to access this portion of the site. Proposed wetland impacts are minimal in nature and size relative to the U.S. Army Corps of Engineers Nationwide permit program that allows disturbance of up to 0.1 acre of wetland without mitigation. Likewise, the NYS DEC has issued a blanket 401 water quality certification for such small impacts. Through the modification of the water regime of the western portion of the wetland, there will be an increase in storage capacity of water in the existing wetland. A weir will control the water level in the wetland. Other stormwater practices that will be used include a wet pond and biofilters. The wet pond will serve to provide additional water retention on site and the use of native plants will provide a wetland habitat larger in size than the wetlands to be impacted. Biofilters will provide another method to provide stormwater controls and will provide for filtration, infiltration and water quality improvement. The use of native and locally sourced plant materials will provide additional wetland benefits and wildlife value.