Laserfiche WebLink
i <br /> 1 <br /> M <br /> it <br /> �Ye <br /> r <br /> a <br /> GROuNDWATER TECH'40LOGY <br /> N STANDARD OPERATIFG PROCEDURE <br /> CONCERNING WATER SAMPLIFG METHODOIAGY <br /> SOP 9 purged by <br /> Prior to water samg?ling, each well shall be til <br /> pumping a minimum of four well volumes ar until the <br /> discharge on Of <br /> water indicatastheawellzisievacuated terpbefore <br /> e, <br /> conductivity,at.d pti. I <br /> four: well volumes are Wepoved or stabilization is <br /> tour well <br /> the sample should be taken when the water <br /> achilevel in the well recovers to 80% of its initial <br /> andEsample <br /> Retrieval of the water sample, sampaccorcle hal 9 <br /> preservation :hall be cLaboratoryucted nStandardnOperVolat <br /> Groundwater Technology concerning Sampling For Volatiles <br /> ,.� Procedure (GTL SOP Pl equipment used sh�allcOn Bets of <br /> in Water". The sa�rpling <br /> a teflon and/or stainless <br /> vialssteewith teflon lids should be <br /> EPA regulations. samples-used to store the collected <br /> To insure sample integrity, each vial shall be filled with <br /> the sampled water such that the water stands slave the lip <br /> should then be aNickly placed on the <br /> of the vial. The :ag •tie vial shauld tnen be <br /> ior <br /> vial and tightened securely• are not <br /> checked to ensure that air bbelsinformationeshould <br /> r <br /> to labeling of the sample. job identification, <br /> ` s analysis requested and the sampler's <br /> include a sample identification num er, <br /> date, time, type of analy <br /> name. Chain-of-Custody forms shall be completed <br /> eratingas pe <br /> Laboratory Standard Op <br /> Groundwater�3o�c11)lconcerning chain of Custody. <br /> procedure J' quality <br /> ` The vials should be immediately placed irz high <br /> The coolers <br /> •., Dent to the laboratory• Packs to <br /> coolers for ship les which <br /> should be pecked with sufficient belowr4Creeamp <br /> f ensure tl'.at the samples are keg Laboratory <br /> are received at the �ansiderearsubstandard. To minimize <br /> above 7.J C. will be rescribed analysis shall take <br /> sAr'.pie degradation thespre sample collection unless <br /> place liy Prre&tired ac dified vials are used. <br /> specially Prepared <br /> ouential for cress contr sampling equip <br /> f To minimize the Pwate- <br /> l� walla, all the well develioueaater shall beclean <br /> Dent �rhich contacts the As a second precautionary <br /> ' between each well samg <br /> inc <br /> led in <br /> t� measure, <br /> the wells shall <br /> easaestabli.sheddby previollsas ng <br /> contaminant concentrations <br /> F : <br /> analysis- <br /> res <br /> GKnt\lq:;Tk:R <br /> 3 ` Tk:iH\nl.lita.�\i. <br /> j <br /> �.ffi <br />