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Work Plan for Extended Site CAW terbation: 7500 West Eleventh Street, Tracy, C.4. '"'o Page 15 10.0 PROJECT SCHEDULE It is expected that a permit to install the proposed groundwater-monitoring wells can be obtained from the SJCPHS within one week of application. Based on past experience, the time required to obtain encroachment permits from the SJCPWD is uncertain, but, for planning purposes, a period of one month will be assumed. 4.0 When the necessary permits have been obtained, it is expected that drilling equipment can be mobilized to the site within four weeks of receipt of authorization to proceed. (Nate. This time frame assumes that the necessary cash flow to fund the work has been made available via the USTCF's timely payments to the Navarras, in compliance with applicable law and regulations, for work already completed at the site through that time.) Drilling of borings and installation of groundwater-quality monitoring wells are expected to take three days, and the results of analyses of soil and groundwater recovered during that phase of the work is expected to be available two weeks thereafter. The necessary topographical survey can be performed in parallel with the early phases of the site investigation, and the site plan should be available for use within four weeks of the date the fieldwork begins. It would be technically advantageous and there would be a considerable cost saving if the work of recovering and analyzing the groundwater samples from the new monitoring wells could be scheduled to coincide with a round of sampling from the existing groundwater quality monitoring wells at the site. When installation of the new wells is complete, SJC will `r consult with the SJCPHS to establish a common schedule for groundwater-quality monitoring that combines sampling from the previously-installed wells and those that will be installed according to this extended site characterization work plan. When the results from the complete suite of laboratory analyses from soil and groundwater samples recovered during the extended characterization program are received, data reduction, �. evaluation and consultation with the SJCPHS are expected to require three weeks. An engineering report that interprets and documents the field and laboratory work can be complete approximately five weeks thereafter. Based on the above assumptions, it is expected that this project can be completed within six months of the SJCPHS issuing its authorization to proceed with the work. V SSC