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ACCESS AGREEMENT Subsurface Investigation — Soil Boring 429 West Yosemite Avenue, Manteca, California, 95337 APN: 219-311-06 I, property owner or authorized representative of parcel 219-311-06, do hereby grant permission to Advanced GeoEnvironmental, Inc. (AGE) to advance two (2), 2- inch diameter soil borings under San Joaquin County permit at 429 West Yosemite, Manteca, California. The proposed work is being performed under a directive issued by the Central Valley Regional Water Quality Control Board to investigate petroleum-impacted groundwater. The site under investigation is located directly to the southeast at the Save-On Gasoline Station, 420 West Yosemite Avenue, Manteca, California. The scope of work will include the following: Advancement of two (2), 2-inch diameter soil borings to total depths of 135 feet below surface grade (bsg). The proposed soil borings will be advanced using a truck mounted drilling rig. The soil boring will be utilized for collection of deep groundwater samples at various depths between 20 feet bsg and 1135 feet bsg. The groundwater samples will be used to investigate historical leaking underground storage tanks previously installed at 420 West Yosemite Avenue, Manteca, California. Upon completion of each soil boring and collection of groundwater samples, the proposed soil boring will be abandoned by backfilling with a Portland cement and the surface will be returned to the original condition (i.e. asphalt). All costs for performance of the above subsurface investigation will be the sole responsibility of the Save-On Gasoline Station, property owner(s) of 420 West Yosemite Avenue, Manteca, California. The Save-On Gasoline Station owners are solely responsible for all costs and expenses for all investigation(s) associated with contamination associated with the leaking underground storage tanks formerly located at 420 West Yosemite Avenue, Manteca, California. Any work performed at 429 Yosemite Avenue, Manteca, California shall be conducted under San Joaquin County permit and in accordance with all local regulations. Copies of all testing and/or reporting for any investigation or testing performed at 429 Yosemite Avenue, Manteca, California can be forwarded upon request. AGE will provide at least 1 week(s) time notice and receive property owner approval prior to the initiation of field activities, which shall be conducted in a manner to minimize disruption of normal site activities. X44Aj G 1 22 o i-6 --- U Authorized Representative, Property Owner Date 429 Yosemite Avenue Manteca, California, 95336