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I. The pH, conductivity, and tmbidity 6eters will be calibmted ata minim= at the beginning of o , CaBbiation wM t be checked tWO to du=times during the 44Y to tvatu0c the Potential the cahbrafiou is dr%ftag tbrougliout the day" -if iztstruzuaaent as detected in the field, the measummmts iak=dining purging i4d sanipling wiH be adjusted a=rdlngly. &Ample caltbration lags are k4uded inPMfMg d sampling of the wells e. is viffl be used in&c same 2. Depth, to vmtcr will be ==red again. mor to sampling. In is Section 4.4.1 and recorded on the Purge Characterization and Sample Log. Ile volume Of grotindwatcr in be eddUsing ie following tirn(s : 44nch wtIk ('tial Well Depth fivia the mark on the welt Vis' '- DTW (ft)) x 0.653 gaVfl. .3., Prior to purgius, the- tm-wilt be�.c=mincd-br usinga disposabwbailer that is clear- enough to see drough- Feauip=such as immiscible isle i be noted and m d. V immiscible o ed the wa Will not be Purged Prior to 4.. The well then be purged using the pmzc pw _Due to thc�fact that the pun4m must purge waxer fmm d as gre3t as-70 to 80 feet below groupurg nd surface, e rat=range frow 114 to I gallon per " sute. ':p a Tzxe does not appear to 4=cced the recharge rates. of the weUs. Purge watcr vwill boe &zd=Xed to-the ground (see Section 4.4-6)- Depth to waw m=w===wffl be taken pedodicdly during purging. The Purpose of Ouse mwmw=wws is if a d in groundwaer elevation is the pxp raft win be toil equillbrim 6MV rate OTUIS redlzrge ) is achiet wW be every a minutes initially de=casing to once every oneonelulf houronoc If equilibrium, be reached,it WM be nece=uy to pmIe the well to drynem Purge urdfl I=s 1odginal o of vmter=ainsin boiling y be ttquired to15 ` to e. StW WMpJeWJJe4don _ ei %,*fed of WaW has 04d the weH or 1.75 bo= has cUlnuod shwe dx and of purgiv& CoUett VOW* c$ no later hours after Purging. Rocotd.all actions and mm==eW a.sociated with p " 8 a well dry on the Purge Cb=MdzWQU and Sample Log, 3 I I QR325 A»1 July 14