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VLEINFELDER Task 1 — Pre-Field Activities Kleinfelder will obtain a boring/well permit from the EHD. Additionally, Kleinfelder will arrange, schedule, and supervise the subcontractors needed to accomplish the well abandonment process. Underground Service Alert (USA) will be contacted at least 48 hours prior to conducting any on site excavation to locate utilities that may encroach onto the project site. Task 2 —Abandonment of Two Monitoring Wells In accordance with the San Joaquin County Public Health Services Well Standards the wells are required to be abandoned properly. Each well will be drilled out, using 10-inch augers, to approximately 1-foot below the total depth of the casing (approximately 26 and 29 feet below ground surface). The borehole will be backfilled with a neat cement mixture to approximately 1-foot below the existing site grade via tremmie pipe. The remainder of the excavation will be backfilled with the native soil. Task 3 — Reporting Upon completion of the field activities, a letter report for the abandonment of the well will be prepared for client and agency review. The report will include: • A description of the field activities and observations • A California Department of Water Resources Well Drillers Report, DWR Form 188, REV 11-97 1987 All information gathered during the operation by Kleinfelder is considered confidential and will be released only upon written authorization from the client or as required by law. California law requires a person to inform the state if a situation is encountered that can be considered an immediate endangerment to the public's health or welfare and/or to the environment. Therefore, the client will be contractually bound to make any said disclosures in lieu of Kleinfelder, its owners, principals, employees or subcontractors. LIMITATIONS If during the course of the performance of Kleinfelder's services, hazardous materials are discovered, Kleinfelder will assume no responsibility or liability whatsoever for any claim, loss of property value, damage or injury that results from pre-existing hazardous materials being encountered or present on the project site, or from the discovery of such hazardous materials. Regulations and Professional Standards applicable to Kleinfelder's services are continually evolving. Techniques are, by necessity, often new and relatively untried. 65570.E01/ST06R101R/FB:Iv Page 2 of 3 91 2006, Kleinfelder, Inc. February 1, 2006