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subject to re-rolling. Ic. Field compaction tests will be made in the outer (horizontal) two (2) to eight (8) feet of the slope at appropriate vertical intervals, subsequent to compaction operations. Id. After completion of the slope, the slope face should be shaped with a small tractor and then re-rolled with a sheepsfoot to achieve compaction to near the slope face. Subsequent to testing to verify compaction, the slopes should be grid-rolled to achieve compaction to the slope face. Final testing should be used to confirm compaction after grid rolling. Ie. Where testing indicates less than adequate compaction, the contractor will be responsible to rip, water, mix and recompact the slope materials as necessary to achieve compaction. Additional testing should be performed to verify compaction. If. Erosion control and drainage devices should be designed by the project civil engineer in compliance with the ordinances of the controlling governmental agencies, and/or in accordance with the recommendations of the soil engineer or engineering geologist. V. SUB-DRAIN INSTALLATION A. Sub-drains should be installed in approved ground in accordance with the approximate alignment and details indicated by the geotechnical consultant. Sub-drain locations or materials should not be changed or modified without approval of the geotechnical consultant. The soil engineer and/or engineering geologist may recommend and direct changes in sub- drain line, grade and drain material in the field, pending exposed conditions. The location of constructed sub-drains should be recorded by the project civil engineer. VI. EXCAVATIONS A. Excavations and cut slopes should be examined during grading by the engineering geologist and/or geotechnical engineer. If directed by the engineer geologist, further excavations or over-excavation and refilling of cut areas should be performed and/or remedial grading of cut slopes should be performed. When fill over cut slopes are to be graded, unless otherwise approved, the cut portion of the slope should be observed by the engineer geologist prior to placement of materials for construction of the fill portion of the slope. B. The engineer geologist should observe all cut slopes and should be notified by the contractor when cut slopes are started. C. If, during the course of grading, unforeseen adverse or potentially adverse geologic conditions are encountered, the engineering geologist and soil engineer should investigate, evaluate and make recommendations to treat these problems. The need for cut slope buttressing or stabilizing, should be based on in-grading evaluations by the engineering geologist, whether anticipated previously or not. D. Unless otherwise specified in soil and geological reports, no cut slopes should be excavated higher or steeper than that allowed by the ordinances of controlling governmental agencies. Additionally, short-term stability of temporary cut slopes or temporary excavation is the contractors responsibility.