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I. GENERAL A. These guidelines present general procedures and requirements for earthwork and grading, including preparation of areas to be filled, placement of fill, installation of sub-drains and excavations. The recommendations contained in the geotechnical report are part of the earthwork and grading guidelines and would supersede the provisions contained hereafter in the case of conflict. Evaluation performed by the consultant during the course of grading may result in new recommendations which could supersede these guidelines or the recommendations contained in the geotechnical report. B. The contractor is responsible for the satisfactory completion of all earthwork in accordance with provisions of the project plans and specifications. The project soil engineer and engineering geologist (geotechnical consultant) or their representatives should provide observation and testing services, and geotechnical consultation during the duration of the project. II. EARTHWORK OBSERVATIONS AND TESTING A. Geotechnical Consultant Prior to the commencement of grading, a qualified geotechnical consultant (soil engineer and engineering geologist) should be employed for the purpose of observing earthwork procedures and testing the fills for conformance with the recommendations of the geotechnical report, the approved grading plans, and applicable grading codes and ordinances. The geotechnical consultant should provide testing and observation so that determination may be made that the work is being accomplished as specified. It is the responsibility of the contractor to assist the consultants and keep them appraised of anticipated work schedules and changes, so that they may schedule their personnel accordingly. All clean-outs, prepared ground to receive fill, key excavations, and sub-drains should be observed and documented by the project engineering geologist and/or soil engineer prior to placing any fill. It is the contractor’s responsibility to notify the engineering geologist and soil engineer when such areas are ready for observation. B. Laboratory and Field Tests Maximum dry density tests to determine the degree of compaction should be performed in accordance with American Standard Testing Materials test method ASTM designation D- 1557. Random field compaction tests should be performed in with method ASTM designations D-1556-82, D-2937 or D-2922 & D-3017, at intervals of approximately two (2) feet of fill height or every 1000 cubic yards of fill placed. These criteria would vary depending on the soil conditions sand the size of the project. The locations and frequency of testing would be at the discretion of the geotechnical consultant. C. Contractor’s Responsibility All clearing, site preparation, and earthwork performed on the project should be conducted by the contactor, with observation by geotechnical consultants and staged approval by the