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Health and Safety Plan 455 E lith St Tracy,California While the excavation is open, subsurface installations shall be protected,supported, or removed as necessary to safeguard employees. An excavator discovering or causing damages to a subsurface installation shall immediately notify the facility owner/operator or contact the Regional Notification Center to obtain subsurface installation operator contact information immediately after which the excavator shall notify the facility operator.All breaks, leaks, nicks, dents,gouges,grooves, or other damages to an installation's lines, conduits, coatings or cathodic protection shall be reported to the subsurface installation operator. If a utility strike presents an immediate danger to the work crew or general public(i.e. electrical, gas, high pressure water line),then the crew should evacuate to a safe distance, contact 911 immediately, and cordon off the area to prevent public access. All utility strikes should be reported out to the PM and/or SSHO as soon as it is safe to do so, and then a plan will be made for reporting to the utility company and client. If a utility strike does occur refer to the accident reporting requirements in Section 7.0. In areas not evaluated by the underground utility notification authority, and/or a reasonable potential for underground utilities exists, one or more of the following techniques will be employed to determine the location of subsurface structures: • contracting the services of a qualified private utility locator • subsurface testing(i.e., potholing)to the expected depth of probable utilities (not less than 5) If utilities cannot be located or if un-located utilities are suspected to be present,subsurface activities (i.e., borings,excavation)should not be conducted prior to confirming the location(s) or absence of underground utilities. Equipment with articulated upright booms or masts shall not be permitted to pass within 20 feet of an overhead utility line (less than 50 kilovolts [kV])while the boom is in the upright position. For transmission lines in excess of 50 kV, an additional distance of 4 inches for each 10 kV over 50 kV will be used. Excavation, drilling, crane, or similar operations adjacent to overhead lines shall not be initiated until operations are coordinated with the utility officials. Operations adjacent to overhead lines are prohibited unless one of the following conditions is satisfied: • Power has been shut off and positive means (e.g. lockout/tagout) have been taken to prevent lines from being energized. Wherever possible,the SSHO will observe power shut off and place a lock and tag on the switch. In all cases utility company personnel shall certify in writing to the Project Manager or SSHO the deactivation of overhead Terraphase Engineering Inc. Appendices