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CITY OF LATHROP 2.3.10 STANDBY TIME A. Scope 1. During the drilling operations, it may be necessary for the Engineer to perform work or analysis that will require the drilling crew and equipment to stand idle. In such an event, the Engineer shall request the Contractor to cease operations and shall state the anticipated extent or duration thereof. The Contractor shall promptly cease operations. 2. Within 12 hours after the completion of test hole drilling and logging operations, the City will provide the final design of the wells. Such time will not be considered standby time. 2.3.11 SITE CLEAN-UP, RESTORATION, AND RECORDS A. Scope--This item shall consist of restoring the work site to its original condition after work is completed and preparing final records of the drilling and well construction. B. Methods -- The Contractor shall keep the premises free from accumulations of waste materials, rubbish, and other debris resulting from the Work, and at completion of the Work, he/she shall remove all waste materials, rubbish, and debris from and about the well site as well as all tools,construction equipment,fuel tanks, machinery,and surplus materials. The Contractor shall leave the site clean and ready for use by the City. The Contractor shall restore to their original condition all temporary work areas. The Contractor is responsible for any damages to properties adjacent to the sites caused by drilling or construction activities associated with the Work described herein. 1. Well Completion Records -- Prior to final acceptance of a test hole or well, the Contractor shall prepare and deliver to the Engineer a Driller's Report in the format required by the State of California. 2. Final Prints--The Contractor shall have prepared,two (2)final prints of the daily tour reports,the drilling logs, and as-built construction drawings. 2.3.12 TEST HOLE ABANDONMENT A. General -- At the Engineer's determination, following completion of geophysical logging operations, the test hole, or a lower portion of the test hole, shall be destroyed in accordance with State and local standards for the construction and destruction of wells and other deep excavations. B. Methods—Sand/cement grout shall be injected from the bottom of the borehole by means of pumping equipment and a tremie pipe. The tremie pipe may be raised as the grout is placed but the discharge end must be submerged in grout at all times until the grouting is completed. The LUHDORFF&SCALMANINI CONSULTING ENGINEERS 18