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I. General All work shall be in accordance with applicable regulatory requirements. Work may not start until the work crew is in possession of project design documents, provided by Contractor. A. Refuse and Site Housekeeping At the end of each working day the Contractor shall either remove refuse excavated from the site or place refuse in a covered bin. Contractor shall empty refuse bins within 24 hours of a bin being full. Bins shall be emptied at facilities licensed to receive such material. Contractor shall remove meal trash and work trash from the work area, or place it in the refuse bin, at the end of each working day. B. LFG System Shut Down Contractor shall not shut down the LFG systems without consent of the Engineer. Contractor shall provide minimum of 48 hrs written notice for any need LFG system shutdown and the duration of the shutdown to the Engineer. Engineer will notify San Joaquin Valley Air Pollution Control District (AQMD) before approving any shutdown request. C. Labeling Label well heads, valves, and valve boxes with oil-based paint indicating well number. Clean surfaces prior to painting. Labeling shall be neat and professional in appearance II. LFG Wells Placement of rock, pipe, and other materials in the well bore — collectively referred to as "Installation of the LFG well"- shall be in the presence of EHD. III. Abandoning Boreholes Notify the Engineer if an obstruction prevents the advance of the drill riga The Engineer may dii cct the Contractor to abandon the borehole, and drill a replacement borehole. Placement of material within the abandoned borehole shall be in the presence of EDH staff. A. Abandoned boreholes in refuse: place soil within the borehole, moistening the soil and compacting in 2 -ft lifts. On - ;'r it LFG System Maintenance Contractor Su oaquin County Purchasing Department