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Bid No.. 86-1 Contract No. 10A514 Page 32� of 48 _ for worker protection from the hazards of caving ground during the excavation. Such detailed plan shall be: submitted at least 5 days before the Contractor intends to begin excavation and. shall show the details for design of shoring, bracing, sloping or• other provisions. to be made for worker- protection during such excavation,. No such plan shall allow the use of shoring, .sloping or protective system less effective than that required by the Construction Safety Orders of the Division of Occupational Safety and, Health and if such plan- varies from the shoring system standards established. by the Construction Safety Orders, the. plan shall be prepared and signed by an engineer who is. registered, as- a� Civil or Structural Engineer in the State of California. MEASUREMENT AND PAYMENT (ADDITIONAL WORK) The, Contractor and- Contract Administrator shall measure- in- cubic yards the following: 1. The area of hole- left by the tank removal . 2. The entire, area of the hole after the additional excavation as a result of removing contaminated waste material . Backfill and compact theentire excavated area in accordance with Section 10.06: of the- General Specifications.. PAYMENT: Payment for- the-- additional excavation, any. shoring,_ and. backfill shall- be, contract price per cubic yard for- backfill measured in place. It. shall be determined: by deducting- the area of hole= left by the tank removal from the. entire area of the hole after the additional excavation. The area- of hole left by. the tank. removal shall be included in the price paid for final cleanup. The contractprice paid per cubic yard for backfill in place shall consist of furnishing all labor, tools, equipment, materials, incidentals and for doing all work- necessary to excavate, remove and- properly dispose of all contaminated material , provide necessary shoring, backfill and compact the- excavated area as specified- in these special provisions. No additional compensation will be allowed therefrom. Payment for providing- follow-up water- and soils samples including the follow-up evaluation report will be- contract price per sample. The contract price per sample shall consist of furnishing all labor, tools, equ'foment, materials and incidentals for doing all work to collect and analyze all, follow-up samples as requested by the State. The follow-up evaluationvx;eport shall be included in the- price paid for collection and analysis of the follow-up samples. BURNING: Material to be disposed of shall not be burned unless the Contractor has obtained a permit to burn combustible material resulting from _- _c_1earAffg_a"r�d� grubbing operations from an air pollution control officer of the local or regional authority. A copy of the permit shall be filed with the Contract Administrator before any burning. All such burning shall be conducted in strict. conformance with the provisions stipulated in said permit.