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The following tasks are based on findings of the ESA, the Limited Phase II Subsurface Investigation , and the presumed goal of redevelopment. SCOPE OF WORK Task 1 — Planning and Scheduling The following preliminary field activities will be performed by Atlas: • Updating the existing site specific Health and Safety Plan (HASP) to be consistent with applicable and appropriate requirements. • Conducting a site walk of the site which will include: o Coordinating with the Client to obtain access to the site; o Coordinating with a private utility locator to check for subsurface utilities that may interfere with project work,and a sweep of the areas of concern with ground penetrating radar(GPR) to identify possible anomalies that may represent complications during drilling; o Marking the surface of the site for Underground Services Alert(USA), as required by law; • Scheduling field activities that include coordinating with site owner, drilling contractor, analytical laboratory (establishing adequate turn-around-times for sample results), and regulatory agencies that must witness certain aspects of the work. Atlas will submit an encroachment permit application to the City of Stockton and drilling permit applications to the San Joaquin County Environmental Health Department. Note that San Joaquin County Environmental Health Department may require a copy of analytical results as a condition of their permit. Task 2—Limited Subsurface (Soil/GW/Vapor)Assessment Atlas is proposing to advance an estimated four soil borings at the Subject Property using a Geoprobe® drilling rig. The borings are proposed to collect soil and groundwater samples to evaluate the current site conditions. All borings would be temporary and would be removed under permit. The proposed boring locations are shown on the attached site plan. The four soil borings will be advanced to first encountered groundwater. Soil will be evaluated for visible impact and will be screened with a Photoionization Detector. up to two soil samples will be prepared for laboratory analysis. Groundwater samples will be collected from the boreholes using a modified HydroPunch®sampler. Prior to groundwater sampling, a water level meter will be used to confirm that the drive rods do not contain water. The sampler will then be driven to approximately three feet below the desired sampling depth, and retracted three feet to expose the disposable schedule 20 polyvinyl chloride (PVC)screen and allow for groundwater to enter the HydroPunch® sampler. The water sample will be collected by lowering a %-inch diameter stainless steel bailer through the drive rods to groundwater. The groundwater will be bailed from the drive rods and decanted from the bailer into 40-milliliter (ml) volatile organic analysis (VOA)vials. Following the collection of the sample,the drive rods will be retracted, leaving the disposable drive tip and four-foot length of PVC well screen in the hole. Following completion, the borings will be grouted through the drive rods from the total depth explored to surface grade with neat cement. To assess the potential vapor encroachment condition(VEC)noted in the Phase I ESA and prior subsurface investigation, seven sub-slab temporary sampling points will be installed below the concrete slab in the eastern portion of the Subject Property building. At each sub-slab locations,the concrete slab will be drilled out and sub-slab material removed to approximately three inches to create a void space. Each sub-slab sampling point will be constructed of approximately three feet of '/8-inch outside diameter Teflon or Nylaflow® tubing attached to a filter screen, one inch in length, emplaced immediately below the base of the building slab. The borehole will be backfilled with three inches of sand. Then six inches of bentonite