WORK PLANS - Laserfiche WebLink

Home Browse Search

Geosyntec'' consultants 1. INTRODUCTION Geosyntec Consultants, Inc. (Geosyntec) has prepared this Rail Line Area Monitoring Well Destruction Work Plan (Work Plan) for Rough and Ready Island (RRI) located in Stockton, California on behalf of the Port of Stockton(Port). This Work Plan provides a plan to sample, destroy and replace monitoring wells to accommodate construction of a soda ash terminal facility, including rail line. The scope of work presented in this work plan was discussed with the California Environmental Protection Agency Department of Toxic Substances Control (DTSC) and Central Valley Regional Water Quality Control Board(CVRWQCB) in meetings on March 11, 2021 and March 18, 2021. The scope of work to be conducted under this Work Plan includes sampling wells prior to destruction, destroying monitoring wells, and installing replacement monitoring wells. Table 1 includes the list of wells that will be destroyed, proposed sampling prior to destruction and proposed replacement monitoring well screen intervals. Figure 1 shows proposed well sampling, destructions, and tentative replacement well locations. 2. FIELD WORK ACTIVITIES 2.1 Pre-field activities Prior to the start of field activities, Geosyntec will perform the following: • Geosyntec will contact Underground Service Alert(USA)a minimum of 48 hours prior to commencement of digging or drilling activities. Additionally, a private utility locator will perform a geophysical survey in each area to identify potential utilities, pipelines, or other subsurface obstructions; • Geosyntec will obtain drilling permits from the San Joaquin County Environmental Health Department(SJCEHD); and • The Health and Safety Plan(HASP) will be updated and available on-site during all field activities. A copy of the updated HASP is included in Appendix A. Prior to the start of field activities, a safety tailgate meeting will be conducted. 2.2 Sampling of Wells Monitoring wells will be sampled for volatile organic compounds (VOCs) prior to well destruction as shown in Table 1 and Figure 1. All sampling procedures will be conducted Rail Line Well Destruction Work Plan 1 April 27,2021