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JACOBSWell Decommissioning Work Plan 1.4 Document Organization This Work Plan is organized as follows: • Section 1 —Introduction and Background: This section contains an introduction to the Work Plan, its objectives, Site background information, well details, and document organization. • Section 2—Pre-Field Activities: This section describes activities to be conducted prior to the start of well decommissioning activities. • Section 3—Field Activities: This section describes well decommissioning, equipment decontamination,waste handling, and field procedures. • Section 4—Reporting: This section describes the reporting to be conducted. • Section 5—Sustainability: This section identifies sustainability practices to be implemented during the monitoring well decommissioning activities. • Section 6—Works Cited: This section provides details of the documents referenced in this Work Plan. 2. Pre-Field Activities Prior to the start of well decommissioning field activities, several planning activities will be conducted to facilitate the safe and efficient implementation of the field procedures. These activities are described in the following subsections. 2.1 Notifications and Permits Well Decommissioning Permits will be obtained from the San Joaquin County Environmental Health Department (SJCEHD) prior to commencement of well decommissioning activities. The selected drilling subcontractor will provide proof of current C-57 license and be registered with SJCEHD. PG&E's Gold Shovel Standard guidelines will be followed. In summary, if a marked utility is less than 3 feet from a proposed drilling location, mechanical drilling is not permitted. If the utility is within 5 feet, drilling may be permitted if the utility can be physically inspected (daylighted)first. In accordance with SJCEHD regulations, SJCEHD will be notified prior to well decommissioning activities to coordinate a SJCEHD inspection appointment. Encroachment Permits will be obtained from the City of Stockton prior to commencement of well decommissioning activities in the public right of way at monitoring well MW-21. 2.2 Health and Safety Planning Prior to the start of field activities, a project-specific Health and Safety Plan (HASP)will be developed, which is intended to protect the health and safety of onsite well decommissioning project employees, visitors,and the public during Site work. The HASP identifies policies, procedures, and systems to be followed by project personnel and visitors while onsite. 2.3 Utility Clearance In accordance with PG&E's Gold Shovel Standard, intrusive work will not proceed until subsurface utilities clearance has been performed for the well decommissioning locations to be removed. The subsurface utility clearance for the well decommissioning locations will be conducted both by engaging a third-party subsurface utility location firm and by notifying Underground Service Alert at least two business days before field activities begin. FES0817211625BAO