1240815 EIS Pleasant Valley Wayrcd 3 12 2026

4 IV. ENVIRONMENTAL IMPACTS The project site is not very large, and it has been substantially developed—originally with a single-family dwelling and mixed-use office apartment building and its associated bituminous driveway and parking lots. The intent is to develop this property with the uses seen along the Pleasant Valley Way corridor. Potential impacts are discussed as follows: 4.1 TOPOGRAPHY AND SLOPES Because the existing property has already been substantially developed for a commercial and residential uses, the project site terrain has been graded and reshaped. As noted above, there are no steep slopes to impede the development of the site. It is intended that this project would modify the existing topography by modifying some of the lower areas of the site. This will be accomplished through the installation of a retaining wall along the southern and eastern property lines. Raising the terrain also provides the opportunity to produce parking area grades compatible with automobile travel and ease of access into driveways. Further, it enables the area immediately around the building to be graded so that there would be handicapped accessible entry points. 4.2 VEGETATION The only vegetation that would be lost consists of a lawn panel to the north of the existing 1-story dwelling and a few small shrubs planted around the existing structures. There are no shade trees or large evergreens that will be lost because of the execution of this project. 4.3 HYDROLOGY AND STORM WATER RUNOFF The building and impervious coverage that is proposed to be constructed will cover 68.93% of the site. This is a slight increase of 167 square feet over existing site conditions. Under West Orange’s latest storm water management ordinance, the addition of 6,000+ square feet of new paved parking area trigger strict regulations that, among other things, require a post-development reduction in the overall rate of stormwater runoff and volume from what exists and the removal of a high rate of suspended solids to improve water quality. The stormwater collection and treatment systems would all comply with these latest requirements. For a complete discussion of the stormwater management program the reader is referred to the Stormwater Management Report 512-516 Pleasant Valley Way. 4.4 SEWAGE Based upon the New Jersey Department of Environmental Protection “Projected Flow Criteria,” the

ogram the reader is referred to the Stormwater Management Report 512-516 Pleasant Valley Way. 4.4 SEWAGE Based upon the New Jersey Department of Environmental Protection “Projected Flow Criteria,” the additional sewage flow from the office space would be 0.10 gallons per square foot per day (gpd). The apartments are projected to generate 225 gpd per