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€> EarthTech A Tyco International Ltd. Company Mr. Brian Lee, PE November 21,2005 Page 4 of 13 analytical methods: . Total recoverable petroleum hydrocarbons (TRPH) (Oil & Grease) by EPA Test Method SW 1664A. . TPH-diesel by EPA Test Method SW8015B-M. . TPH-gasoline by EPA Test Method SW8015B-V. . Benzene, toluene, ethyl benzene, and xylenes (BTEX) by EPA Test Method SW8015B or EPA Test Method SW8021A, with preparation by EPA Method SW5035. . MTBE by EPA Test Method SW8260B. . VOCs by EPA Test Method SW8260B. Duplicate soil and groundwater grab samples will be collected and analyzed at a frequency of approximately 10 percent for quality control purposes. Trip blanks will also be submitted to the laboratory along with samples intended for TPH-g, BTEX, and MTBE analyses Soil and Groundwater Investigation Report Earth Tech will prepare a draft and final report for each site at the conclusion of the field activities. The draft report will include a description of the work performed; tabular summaries of data collected during the investigation, interpretations of the data, maps showing boring and sampling locations, boring logs, laboratory analytical reports, and will also contain recommendations for UST closures and future activities if warranted. The draft report will be submitted to the City for review and comment. A final report will be prepared, incorporating the City comments, and be submitted to the City and San Mateo County for their use. Project Management and Meetings Earth Tech anticipates one meeting with the City of review the new data and one meeting with the City and the County of San Mateo to discuss the investigation results and future course of action at the three former UST sites. SCHEDULE Drilling permit application preparation, contracting, and subcontracting, and preparation of a site-specific HASP will be initiated upon San Mateo County approval of the work plan and the City's approval of this proposal. Depending on the permitting process, subcontracting scheduling and availability, the soil and groundwater sampling will occur two to three weeks following permit approval. The field program is expected to take approximately one week. Laboratory analytical results will be available about two weeks after completion of the field work. The draft report of findings will be submitted for review within approximately two weeks of receipt of the analytical data. The total schedule is therefore, approximately 8 weeks. ESTIMATED COST The estimated cost to perform the scope of work presented above is $37,484 (see Exhibit 1).