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Lf NG R NC I CQF l NF�Y _.A r DESIGN DEVELOPMENT AND a f ICONS RUCTION DOCUMENTS Scope Of S.6.,. geologic/geotechnical conditions 'of the existing VEW. lyyi landslide materials underlying the proposed park,sii[le file., ` `. etvays and parking lots, and structures (restroom, concession stands, and (continued) foot bridges). The groundwater level will also be documented, if encountered. PSOMAS LGC recommends the excavation, logging and sampling of approximately 16 exploratory test pits. Test -pits will be advanced to depths of approximately 3 to 5 feet below existing grades, or to refusal, whichever is shallower, with a backhoe. Relatively undisturbed ring and bulk soil samples will be obtained. for geotechnical testing. We do nq anticipate the 2nd Party. Consultant spending time in the field for this portion of work. After excavation, logging, and sampling, test pits will be backfilled with the excavated soils. Excess cuttings will be dispersed in the vicinity of the test pit locations. The test -pits will be used to ascertain the geotechnical conditions of the upper portions of the existing fills, and native materials underlying the proposed park site fields, driveways and parking lots, and structures to help determine remedial removal depths. Laboratory Testing Samples obtained from the explorations will be transported to our geotechnical laboratory. Geotechnical testing will be performed in general accordance with applicable ASTM Standards and is anticipated to include the following tests: 1 In-situ moisture and density (to detemune the relative density of the in-place soils); � Sieve analyses and hydrometers (to determine the grain size distribution of the soils, the results, to -be used in -the liquefaction analysis); l Maximum dry density/optimum moisture content; (to be used with in-situ moisture/density test results to determine the shrinkage and bulking values for site earthwork calculations); 1. Expansion Index (to determine the expansive characteristics of the anticipated soils underlying proposed structures; to be used to determine slab on grade/foundation parameters); Direct shear (to determine the shear strengths of the different soil types located on site to be used in the slope stability analysis); Y Consolidation and collapse (to determine the compressibility and collapsibility of the soils underlying proposed structures and to determine depth of remedial removals and to calculate settlements); Scope of Services I LGC Geotechnical — 32