1001 N BROADWAY Geotech Report 2018-01-02 MF Import

�:-; �:, graY or reddish brown, with a slightly higher silt content. 'The weathered zone al�o cantained some fine roots. Glacial TILZ was generally disclosed under a thin mantle of FILL or SOD within the Southern and Western areas of the project site at depths of about 1.0 to 2.0 feet below the gro�d surface to the bottom of the test pits, GLACIAL TILL was not disclosed below the FILL in;test pit TP-7, GLACIAL TILL soils were also disclosed beneath t he SILTS in the northexn, lower elevation project areas (except test pit TP-11). Groundwater was encountered in all test pits (except TP-10). The nature of the groundwater observed was slight to moderate seepage of water above very dense GLACIAL TILL or very stiff ` SILTS. However, a significac�t iuflux of water was observed in Test Pit TP-7 below the FILL soils. These conditions, in our opinion, represent "perched" water conditions in which surface water infiltrates the upper soils and is "trapped" above the relatively impermeable SILTS and GLACIAL TILL soils, Seasonal variations in precipation would cause changes in the recharge and consequently the quantity oE groundwater on the site. GEOTECHNICAI, ENGINEERING STUDI�S; CONCLUSIONS AND RECOI�NDATIONS Consideration of the subsurfac� conditions and the anticipated building locations, formed the basis for the engineering 3turiies, These studies were directed towards site preparation, structural fill, use of on site soils, allowable bearing pressures for shallow foundations, estimated settlements, slabs-on-grade, parking and paved ;ireas, and excavations, backfill, and drain- age requirements, Our conclusions, based on these �tudies, are given in the foll.owing sections. The reco�euaations submitted in this report are based in part upon the data obtained from the 14 test pit explorations, �e