R.J. Behar & Company Inc. - Laserfiche WebLink

Home Browse Search

E Sciences conducted environmental services to provide the City with guidance on whether it can be ® demonstrated that there was two feet of dean fill covering the bens. In order to complete the project in a time and cost effective manner, E Sciences developed a phased sampling approach by collecting all the necessary samples, but conducting laboratory analysis on an iterative basis. The limited initial sampling results revealed the presence of regulated contaminants above regulatory criteria, therefore additional analysis was not deemed necessary. The City is currently proposing to implement an engineering control (EC) to achieve conditional site closure along with the adjacent golf course property, protect human health and the environment. E Sciences is completing the engineering control design and coordinating review and approval with PERA. We are including options for re -using unwanted, dean fill materials or recycled materials from other places within the City as part of the engineering control system. The proposed engineering control will consist of the installation of an impermeable geosynthetic day liner (GCL) and fill/sod system over the RSM berm. Furthermore, E Sciences is facilitating guidance and recommendation for the installation of the GCL cover to the City and will provide site oversight during construction in order to verify the proper installation of the cover and handling of the contaminated soil. Upon completion of the cover installation, E Sciences will submit as -built drawings and cross- sections documenting the constructed condition of the berm to PERA. Additionally, E Sciences will prepare and submit an inspection, monitoring and maintenance plan for the EC. Sea Level Rise Evaluation — E Sciences is conducting a study of groundwater elevations, tidal fluctuations and rainfall over a period of seven months to help the City to evaluate the effects of sea level rise. To identify areas of potential short and long term flooding, we are creating GIS layers of surface water levels from high quality UDAR data, groundwater levels from wells, and other research conducted. The critical component of the effort is to identify areas with limited soil storage capacity, and areas where sea level rise is expected to reduce unsaturated soil storage capacity further. These data will be contoured to provide a spatial presentation of areas with higher vulnerability for impacts of sea level rise through groundwater. ® A letter report outlining our methodology, the results of the study in narrative, charts and graphics, and recommendations will be provided at the completion of the study. We will work with City staff to develop a plan for future 'armoring" and creating resiliency of the City's stormwater system and other infrastructure as requested. Street Tree Inventory — E Sciences conducted street tree inventories for the Normandy Shores and Normandy Isles neighborhoods. A total of 6,010 trees were inventories using sub -meter GPS and provided to the City in an ESRI ArcGIS shape file. The work included assessing each tree for its general condition and providing recommendations for maintenance. Greenspace Canopy Assessment — Using i -Tree Canopy and i -Tree Vue, E Sciences assessed the extent of the City's urban forest canopy and the ecological services provided by the trees. E Sciences estimated the canopy coverage for the City's entire urban forest, its parks and its rights of way using i -Tree Canopy. It also estimated the percentage of available space remaining within the City for additional tree planting. Using i -Tree Vue, calculations were made to estimate the carbon sequestration and storage, as well as pollutant removal being provided by the trees. E Sciences developed a brochure for public education documenting the information from the study. ® :52&�M' ces Rev 8/12J2014 Project 7 -0002 -001 NGL RFQ No- 14 -07 -02 1 Page 12.56