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09114/1995 04 52 9093579307 TONTO PAGE 09 SOP NO. 102 DAM MG" PAGE S OF It r 4.5.1 DaWnteminM the probe and pusl fdrivc rods in accordmce wuh SOP 6.1. If the Hydrepnack model is being used wins a amyl dmncw bailer, the bailer and assodond egaip wnt must *lso be deoorltamioated in acoordame with SOP 6.1. 4.5.2 Advanoc the probe to the target depth. which will eommomly be a permeable 1aYW as defined from the a�acent CPT or 01bw st:asigrap�hic iafocrosaan. Depds eorsaol is ' mamtsined by ealmting the rtoez of whob and panW Qmh or drive rods used. The Hy*gm=*® is meaane+ad at the; tip of the coal and vetoed at she ground vddhc'-' 4.5.3 To obtain a 1p c 1 dwam satapk, sesta the weer jaclmt of the ® probt m allow grvurtdwame:udlow into the sample chamber. An optional WhMq e, used to dcumnine when the sarnpk dtamber is full as Maws: • Plaoe a s Durr the wd push rad before the oatrr jatloet of the ' samples is j a As wase ealr rs pk her sad &RAmms air, *a &M win 'aflame. o n►amsc a=nd flowing inn the cbmber sod the sample may be nuieved. The length of acme required for the ssmpk chasaber to Sn is it fW=m of On rt lanvc rpermeability of the forts adm and the presence or abm= of materials which may dmg the 9 flltex $st= thereby mbibidng the flaw of water. ' 4.5.4 Rona= theprobe froth the the hole. the push hods fivm die Hydropuncbe. and remove the upper valva. upper valve with a Teflon" stop cock valve and a d:sposabk t n. Turn upside tea, opm the rode vain: and decant the sample the sampk canadm. 4.5.5 if using the Hydt�cpm chft model with a small M comer bailer. the water=Wk 's is / retrieved by lig du bailer thtvmgh the im & of the pmh rod into tbt: sampic cbamber. t V Tbc wants movemd m the bailer is then decanted directly MW lhC WrOPM" Wcmple cont;iaem rwa�-1 s+ssAovr�aP�ortos A