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;J:t " 6.2A Page 7 SOIL SAMPLING Take two (2) soil samples from underneath the tank and two (2) soil sample from the excavated soil stockpile to be'analyzed for Total Petroleum Hydrocarbons (TPH-G) and Benzene, Ethyl Benzene and Xylenes (STEX) distinctions. Analysis will be also for MTSE and Fuel Oxygenates. These four (4) samples will be analyzed by a State Department of Health Services certified laporatory. on a five (5) working day turnaround. The County of San Mateo Department of Public Health could require additional soil and/or water samples and/or analysis or different turnaround times, please refer to the attached price chart. BACKFILLIRESURFACING Excavation will be bacldilled and compacted on the same day with excavated material and imported material equal to the volume of the tanks. If compaction and settlement of the backfill are a concern, special arrangements could be made. Please notify TEe! Accutite for arrangements and quotations. 'fECI Accutite will resurface the excavated area 6'x 12' with concrete after soil sample results are obtained. CONTAMINATION EXCLUSION In the event contamination is encountered and if Client/County elects not to backfill the excavation up to grade with excavated and imported material, TEe/ Accutite will then stockpile excavated soil neatly on~site and cover with Visqueen. Open excavation to be secured at TEC/ Accutite' s expense until soil sample results are obtained and next- step options are made available to Client. After that time, Client to be charged for securing open excavation. If barricades and fence are required) the extra cost will be $160.00 for six (6) barricades per month and $300.00 for six (6) panels of fence per month. TEe! Accutite reserves the right to backfill/resurface excavation after next-step options are discussed in order to relieve Client/Contractor of liability associated with open excavation. A partial invoice will be submitted if the excavation remains open. Once excavation is backfilled and resurfaced TEClAccutite will submit the remainder of the bid price to the Client. Please note. contamination exclusion paragraph is a general paragraph included in all of our tank removal bids. The option of backfilling or leaving the excavation open will be discussed at length on the job. Any additional charges associated with securing a contaminated excavation, per the requirements of the county of San Mateo Public Works Department will be communicated to the client for approval. In the case client does not approve such expenses. Accutite will backfill and resurface excavation area to match prior existing. REPORT A report describing the tanks removal job, a plan sketch of the location (hard copy of the analysis result and the chain of custody form. if sampling is performed) will be provided within twenty (20) working days of the removal. CONDITIONS: 1. No dewatering, shoring. or contamination work is included in the above cost. 2. No removat replacement or relocation of any underground utilities. 3. Work area on top and around tanks must be cleared prior to start of job. 4. No work can be scheduled or started until Client has an established TEC/Accutite account with bid amount approved by our Credit Department for billing purposes. If you do not presently have an account, a credit application will be provided. Credit application enclosed. 5. No extra work will be performed without an authorized TEC/Accutite Change Order, executed by the Client or his authorized representative, outlining the additional Scope of Work and the estimated costs. 6. Payment: Net 15 days upon receipt of invoice with approved account, unless other arrangements are agreed to in written form. 7. All work is subject to TEC/Accutite's General Rules and Safety Guidelines, a copy of which is attached. TEC/Accutite is a State of California. Department of Consumer Affairs licensed contractor, (At B. C36, and Hazardous Substances Removal and Remedial Actions Certification). State Contractor's License No.762034. Bid# 1619-C