Drawings Package.pdf

This is a detailed construction drawings package prepared by Superior Environmental Corp for the Michigan Department of Environmental Quality (MDEQ) and City of Grant for the Grant Mini Mart Site MDEQ RRD project located at 92 S. Maple Street in Grant, Michigan. The drawings detail a comprehensive site remediation and demolition project that includes the removal of an existing mini mart building, canopy, underground storage tanks (USTs), asphalt surfaces, and associated structures. The project involves extensive earth excavation to a depth of 25 feet below grade, installation of excavation support systems, and site restoration work including aggregate surface course installation and slope restoration.

The technical specifications show soil boring data indicating contamination from various petroleum compounds (benzene, toluene, xylenes, etc.) at multiple sampling locations across the site. The project requires specialized excavation support systems from Efficiency Production Inc., including a 40' x 41' x 24' deep slide rail system. The site grading plan indicates specific requirements for surface water management with a maximum 4% slope and installation of erosion control measures. The work must follow strict environmental protocols given the site's status as an MDEQ Remediation and Redevelopment Division (RRD) project, with particular attention to groundwater management as shown in the soil profiles indicating groundwater levels between 19-23 feet below grade.