3003 W CASINO RD BLDG 40-56 2018-01-02 MF Import

i � APPENDIX A: FIELD EXPLORATION PROGRA�f I I i � 7'he subsurface conditions et the site were investigated by drilling sia exploratory borings. The borings wero drilled flt Iocations shown on Piate 1 utilizing a truck-mounted CME-51 rig and mud rotary techniques. 7'he borings were drilted to depths ranging from 30 to 70 feet each, then backfilled with e cement-benronite grout. _ i AU fietd exploretions were coordineted by a Dames&Moore representative who toceted the I borings,classified the soils encountered, maintained a log of each boring,end obtnined snmples ' ;� of the various strate penetrated i�r visuai eaemination end leboretory testing. Grephical roprcsentation oC the soils penetrated by the borings are presented on the Log of Borings, Pletes A-2 through A-7. The aoils heve been classifiecf in general eccordance with the Unified Soil , Classification System described on Plete A-8. I Soii aemples were obtained from the borings using e Dames&Moore Type-U Sampler,which is lltu�trated on Plate A-1. The sampler was advanced with e hammer weighing 320 pounds end I ; having a free fell of 30 inchea. The number of blows required to drive the eampler for the final I , __ foot of penetration et each sampie location are presented on the Log of Borings. � i Beceuse of the method of advancing tho boring, no ground-water level measurements were � � � = �I taken during the field explaretion program. j s� i � I Hoie caving observations were made in Boring B-2 by flushing the drilling Muid from the i "� hoie after the compietion of drilling, and aubsequently examining the condition of the uneupporled hole over e period of approzimately 24 houra. The original depth of the hote wes � , 30 feet During the oMervation period sufficient caving occurred such that the hole beceme ! l n btocked below a depth of 16 feet. u � � r � ' � i � � > � J � � , � � � � � � Dames& Moore