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Weston Solutions, Inc. <br /> Remedial Action Work Plan for the San Joaquin County Human Services Agency Site—Stockton, California <br /> PROPOSED IMPLEMENTATION PLAN <br /> lines are shallow and can be located/avoided using utility surveys, and hand-clearing to 5 feet <br /> bgs. <br /> The fiber optic line is deep and may not be identified using geophysical surveys or hand <br /> clearing to 5 feet bgs. A field meeting with the owner of the fiber optic utility line identified <br /> on the dig ticket will be scheduled to get a better understanding of the location of this utility <br /> line and to evaluate additional safety precautions (as appropriate). <br /> 6.4 SITE PREPARATION <br /> Traffic control measures will be implemented during remedial action implementation to <br /> provide for safe and efficient movement of traffic around the construction area while <br /> reasonably protecting construction workers and equipment. A Traffic Control Plan detailing <br /> all temporary traffic control measures at the Site will be included in the HASP. <br /> Personnel and equipment decontamination stations will be established prior to the start of field <br /> activities for minimizing the spread of contamination from the contaminated work areas. The <br /> waste generated as part of decontamination operations will be managed as summarized in <br /> Section 6.8. <br /> 6.5 TREATMENT AMENDMENT <br /> BOS 200® reagent will be injected into groundwater for in-situ remediation of petroleum <br /> hydrocarbons in the vicinity of well MW-2. The BOS 200 product includes powdered activated <br /> carbon medium along with micro and macro nutrients, terminal electron acceptors such as <br /> nitrate and sulfate, and a blend of facultative microorganisms that are designed to function in <br /> both aerobic and anaerobic environments. The activated carbon in the BOS 200 is designed to <br /> trap or adsorb petroleum hydrocarbons, and ingredients such as bacterial cultures and terminal <br /> electron acceptors are designed to facilitate biodegradation of these trapped hydrocarbons. <br /> 6.6 TREATMENT AMENDMENT INJECTION <br /> BOS 200 treatment amendment will be injected into 10 points distributed in a triangular grid <br /> with spacing of approximately 6 feet, centered on well MW-2 (see Figure 6-1). A relatively <br /> 6-2 Febraary 2021 <br />