ARCHIVED REPORTS_2019 SOIL MGMT PLAN (JULY-REVISED)

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Brusca File No. 137-002 BruscaAssociates.com ● P.O. Box 332, Roseville, CA 95661 ● Phone (916) 677-1470 Page 5 March 9, 2018 Murphy Parkway Property Excavation and Materials Management Plan 6.0 WASTE EXCAVATION AND MATERIALS MANAGEMENT 6.1 General A thin layer of solid waste materials (mostly on the order of three- to six-inches thick) comprised predominantly of glass fragments exists beneath an approximate two- to three-foot-thick clean soil cap on the far northwesterly portion of the subject 48-acre parcel (see Plate 2). As a part of clean closure activities, it is planned to completely remove and stockpile these waste materials; the stockpiled wastes subsequently will be sampled and tested to determine whether the materials can be reused onsite in engineered fills during site development. Additionally, verification sampling and testing will be performed beneath the area of removed wastes to confirm that the wastes are removed. All waste management at the site will be performed in accord with applicable laws and regulations. The waste excavation and management at the site will be performed by a properly-licensed contractor and will be overseen by a qualified environmental professional(s) under the direction of a Professional Geologist. Any previously unknown wastes identified within the work area during activities described herein will be appropriately managed and handled in accord with the provisions of this EMMP. 6.2 Notification The lead oversight agency (the SJCEHD), CalRecycle and the Central Valley Regional Water Quality Control Board (CVRWQCB) will be notified at least 72 hours prior to the waste excavation activities described herein. 6.3 Excavation Plan Prior to removal of the solid wastes from the northwesterly portion of the subject parcel, the approximate two- to three-foot-thick clean soil cap will be removed from this area. The removal of the cap soils will be performed with suitable earthwork equipment, and the cap soils will be stockpiled to the east of this area (see Plate 2). The removal of the clean cap soils will continue until the underlying solid waste materials are exposed. Care will be exercised during removal of the cap soils so that the underlying layer of solid waste materials is not incorporated into the cap soils. Following removal of cap soils, the solid waste materials in this area will be excavated and removed using appropriate earthwork equipment. The solid waste materials will be segregated, removed, and stockpiled onsite to the south of the removal area (see Plate 2). To accomplish complete removal and segregation of the thin layer of solid waste materials, it is anticipated that a limited amount of the overlying clean cap soils and underlying native soils will be incorporated into the removed waste. Solid waste removal, hauling, and stockpiling will be carefully performed in a manner to prevent spilling/spreading of the removed waste materials. The removed and stockpiled waste materials will be completely covered with plastic sheeting (6-mill minimum). The plastic sheeting covering stockpiled materials will be secured (e.g. with sandbags) to prevent wind disturbance. Appropriate measures will be implemented to prevent storm water contact and erosion of stockpiled materials; such measures could include the berming of stockpiled areas if warranted by site conditions.