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• DDJC-Sharpe Work Plan-Demolition Ailding 137,Closure of M ell 2 1.0 INTRODUCTION 2.0 TASK SUMMARY 1.1 The purpose of this task-specific work plan 2.1 This well-closure plan will be submitte to is to describe activities relating to the closure the Regional Water Quality Control Board (abandonment)of Well 2 and the demolition of (RWQCB), the San Joaquin County Building 137 at Defense Distribution Depot San Environmental Health Department (SJCE ), Joaquin (DDJC), Sharpe Site located near the and the County Public Works Department north balloon(see attachment 1). As proposed, (PWD)for approval prior to grouting the we I or Radian International (Radian)will provide all initiating any closure procedures. Radian is necessary equipment, manpower,and materials estimating one calendar week for approval b to perform the work as scoped, including the RWQCB/SJCEHD/PWD. A downhole video addressing all health and safety concerns related survey of Well 2 will be performed and to the performance of field work.Members of submitted to the County and RWQCB prior to Radian Engineering, Inc., a subsidiary of Radian initiating the building demolition or well International, will be responsible for the abandonment. A copy of the video will also be performance of field work. All work will be sent to Marshall Cloud at DDJC,as requested. performed in accordance with the DDJC- The County/RWQCB will only approve the Sharpe/Tracy Comprehensive Field Work Plan well-abandonment method (i.e.,pressure and Waste Management Plan, and with all grouting) after the video is submitted and applicable Federal, State, and local regulations reviewed. and requirements. This work effort is being conducted under contract with the U.S. Army 2.2 After acceptance of this well closure plan Corps of Engineers,Huntsville Center by the RWQCB/SJCEHD/PWD(and following (CEHNC),Task Order(TO)27. approval of the well abandonment method based on the downhole well video),Radian will re- 1.2 Work proposed in this work plan will mobilize to the site for completion of the scope include the demolition of Building 137, which of work.Demolition will not occur until the houses the Well 2 surface completion and following has been completed; appurtenances, and the pressure grouting and closure of Well 2 (to be completed under • An Asbestos Notification has been subcontract to Gregg Drilling). Demolition will submitted to and approved by the San include the removal of asbestos shingles Joaquin Unified Air Pollution Control attached to the building sides and disposal at an District; approved facility. Work on the demolition of Building 137 will begin in conjunction with the . A Demolition Permit Release has been closure of Well 2, while completion of grouting issued by the San Joaquin Unified Air and closure of Well 2 will be scheduled after the Pollution Control District; and building has been removed. • Payment of a nonrefundable fee upon Pili ig 1.3 All work will be conducted in coordination the asbestos notification subject to the with Mr.Ron Allen and Mr. Marshall Cloud of provisions of Rule 4002 (National DDJC. Emissions Standards for Hazardous Air 1.4 The purpose of the proposed work is to Pollutants). close Well 2 for future use, as it no longer serves 2.3 Confirmation of underground utilities an as a domestic water supply well. Building 137 locations of service lines will be made by US will be removed, including all asbestos shingles Services and Subtronics Co.This information attached to the building.This plan provides a will be used in conjunction with any as-built general description of the scope of the proposed drawings provided by DDJC-BE and Mr. Ron work and can be incorporated as such. Allen. WELL2-WPAae I 7 September 999