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RECEIVE® OCT 21 2013 (hitlinrcl below is a summary of the scope of services: ENVIRONMENTAL Pre-field Activities HEALTH DEPARTMENT • A pre-work site meeting was conducted on August 12, 2013, during which Terry Fox with Caltrans and Josh Ewert with Geocon reviewed the project site and scope. The proposed UST excavation area was marked out with white paint for subsequent utility clearance by responding Underground Service Alert(USA)members. • Caltrans will make arrangements for site access and provide any necessary private property owner notifications. • Retained the services of AGS to perform a geophysical and utility survey. • Contact USA a minimum of 48 hours prior to performing the field sampling activities. • Obtain soil boring permits from SJCEHD. • Prepare a health and safety plan to provide guidelines on the use of personal protective equipment and the health and safety procedures to be implemented during the proposed field activities. • Retain the services of Advanced Technology Laboratories (ATL), a Caltrans-approved and California-certified analytical laboratory located in Signal Hill, California, to perform the chemical analysis of soil samples. Field Activities Soil Sampling The field activities will include the advancement of two soil borings near the UST at the locations depicted on Figure 2. Each boring will be advanced using a hand-auger to a depth of at least 5 feet due to the close proximity of the buried utilities and unknown dimensions and orientation of the UST. In the absence of UST or utility conflicts, the borings will then be deepened and sampled using Geocon's direct-push rig to a maximum depth of 15 feet. Continuous core soil samples will be collected in cellulose thermoplastic(acetate) liners driven by the direct-push rig. The acetate liners will be cut to obtain soil samples at 5-, 10- and 15-foot depth intervals and where field indicators (i.e. staining, odors, elevated photoionization detector [PID] readings) suggest potential impacts. The liners will be capped with Teflon® sheets and polyethylene end caps. Each sample container will be labeled and placed in a cooler pending delivery to ATL for chemical analyses under chain-of-custody(COC)protocol. The borings will be logged by a geologist using Unified Soil Classification System (USCS) descriptions. Soil samples will be observed for indications of hazardous materials or petroleum products (e.g., soil discoloration or "chemical" odor). Samples will be screened with a PID for preliminary indications of volatile organic compounds (VOCs). Soil collected for screening purposes will be placed in a new re-sealable plastic bag and the PID will be used to screen the sample for VOCs within the bag "headspace." A hand-held Global Positioning System (GPS) receiver will be used to determine the latitude/longitude coordinates of boring locations. Pertinent information will be documented in field logs. Linden UST Site Investigation,TO No.4 Caltrans Contract 06A1895,EA No. 10-OY3600 Geocon Project No.59800-01-04 -2- , October 8,2013