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-2- 1.0i Western Meter Service, Inc. will approach all tank excavations as possible cave-ins. The following rules will be followed to prevent any mishaps: 1 - Soil to be inspected for stability before and after tank is removed. 2 - Soil is to be kept at least two feet from the edge of the excavation. 3 - If excavation is five feet or more in depth, the sides shall be tapered, braced or other equivalent methods shall be used to prevent cave-ins if lack of stability requires. Precautions will be taken at all times. Soil samples will be taken by GEOLOGICAL AUDIT SERVICES, INC. of Stockton, CA 356-0264. The method of sampling will be soil excavation by backhoe. Samples will be taken by hand from the backhoe bucket using brass or stainless tubes. Samples will be taken two to four feet below each end of the tank into native soil. All of the above procedures will be done according to code. After the samples have been taken, the hole will be backfilled if approved by the local environmental health division representative on the site. Western Meter Service, Inc. will hold shop meetings before start of tank removal to discuss safety procedures. The "Buddy System" will be discussed and the course of action to be taken should an injury occur to an employee or other individual on the site. Some of the many rules to be discussed to help prevent an accident or injury are: 1 - Avoid standing on top of the tank -- the surface may be slippery. 2 - Check for falling objects, slipping and tripping hazards. 3 - Visqueen plastic sheeting will be used, if necessary, to cover excavated soil and will be placed under suspected contaminated soil piles. 4 - Where necessary, the site will be secured with construction barricades and warning signs will be posted to preven the exposure of unauthorized, unprotected people to site hazards. 5 - Limit time of exposure to noisy equipment. 6 - Keep a safe distance from the excavation and heavy equipment. 7 - Stay upwind from the tank and/or excavation to avoid unnecessary exposure whenever possible. 8 - Limit exposure by minimizing the exposure time and maximizing the distance to the sourece of vapor release. 9 - Avoid the area or take special action when ventilating the tank with water, dry -ice or air. 10- Excavation is not to be entered without first monitoring the air. Western Meter Service, Inc. shall provide a map showing the shortest route to the nearest hospital to be used should an injury occur. A copy of the map will also be on teh job site along with the applicable permits.