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'as Uttle agitation as pos�ible to redued potential loss of volatile cons-tituents. m4ior, ions, TDS, and metals analyses Cm non -preserved containers) will be collected next foll owed by samples to be coil-ected in pre=ved containers. Containers will be filled dkoctly from tilt dispo sable bailer, immediately capped, and placed in a temperature -monitored iced chest Caution win be used not to overfill bottles containing a preswvAye- Temp=tare will be monitored by Placing &Crmometer in the cheA and chockIng to make sure that there is'sufHcient m the chest to Ice maint* a temperatuic of *approximately 4 dqp-= Celsius, The laWratory WM meas=* doctimen t, and reWrt the temperature of the sampic container upon arfival at the laboratory., The analytical laboratory places a total of 2 ml of nitric add in some of the I liter bottles to reduce the PH to below 2. on an annual . basis an extra presemod bottle will be . filled -with .groundwater and -the PH measured in the bottle,. It is*assumcd that the PH W.M be -below 2: If it is not the field technician will ad(fnitric acid in 1taeasured amounts until the PH is below 2. 'Ms, added quantity of acid will be placed mi•all the presaved bottles.during the following M, nitoring rounds until it is checked againthe follovfing-y!:ar---Samplt:�.-WiH-bc-confirriied:at:thc.: lAboratorY and recorded. Deviations will be documented and reported by the Laboratory, Samples;,to be submitted for metals analysis -will. be filtered in the field- Filtering- be performed using an in lina filter mechanism which uses the -pumping p to draw •water through the 4 micmu'filter- A process -of the- declicated - P=P new filter will be used at each well. ne new fxlt= will have a minimum of one fate volume of groundwater pressurized through them to - reduce adsorption effects. ■Tht achtal •filtered-sample.wW not be collected -until a minimum, of two Ii.1ter volumes of groundwater hag been. passed through 1ha filter. For *clls wiew�t dedicated pumps. the samples a:reamnsferred from the bailer, through a filter apparanis, into the appropriate sample contai=. 11c f Uter apparatus consl= of a pr=sum *=el, a haad-operated . pre;Ssure pump, and a filter cartridge. Watm from the bailer is placed in the pressure vessel and ,enough a (via the hand pump) is appIied to force water through the filter cartridge into the sample bottles. The pressure ve=1 is washed in Alconox, steam cleaned, and rhLsed 'with deicnized water betw= well& A new filter cartridge is used at ewh wem Samples will. be Labeled wit a unique sample identification number, project identification number, sample location, and date and time sampled. Samples Al be transported to the contract laboratory under strict chain--of-custody procedures. 234938494011231OR325 A-9 July 14, 2000 copyrf& 2000 KklawdC4 IV-