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-as little agitation as possible to reduce potential loss of volatile constituents. .Major, ions, TDS, <br /> -- and metals analyses (In non-preserved'contain ill be collected <br /> next followed by samples to <br /> be collected in preserved containers. Containers will be filled directly front the disposable bailer, <br /> immediately capped,and placed in a tem - onitored iced chest. Caution Will be used not <br /> to overfill bottles containing a preservativ& Temperature will be monitored by plug.a = <br /> thermometer in the chest and checking td make that there is sufficient ice in the chest to <br /> maintain a temperature of approximately 4 degrees Celsius. The laboratory will measure; <br /> document, and report the temperature of the sarapie container upon ardyal at the laboratory.. <br /> The analytical laboratory places a total of 2 ml of nitric acid in some of;the I liter bottles to <br /> reduce the pH to below 2- On an annual basis an extra preserved bottle will be filled with <br /> .groundwater and-the pH measured in the bottle, It is' ed that the pH will be-below 2: if it <br /> is not the field technician will acid nitric acid in Xoeasured amounts until the pH is below 2. This <br /> added quantity of acid will be placed in all the preserved bottles.during the follo <br /> wing monitoring <br /> rounds until it is checked again the following-y _:SamplepH will- be_confunned at:ihe•_ <br /> laboratory and recorded. Deviations will be documented and reported by thelaboratory. <br /> Samples.to be submitted for metals analysis filtered in the field_ Filtering-v� be <br /> performed using an in line fiher n cchanimn which the- process of.the-dedicated <br /> ` PUMP to draw water through the 4 micron'fiItcr A <br /> new filter w 1 be used at each well. The new, <br /> filters 'will have a ,minimum of one filter volume of groundwaler presstzzize;d through them to- <br /> reduce: adsorption effects. The actual filtered-sample.will not be collected-unto a minimum of <br /> two filter volumes of groundwater Inas been. passed through the. filter, For wells without <br /> ,dedicated pumps,the samples are transferred from the bailer,through a filter apparatus, into the <br /> appropriate sample container. The f 3!ter app consists of a Pressure Vessel,a hand-operated <br /> pressure pump, and a filter cartridge. Water fimm the bailer is placed in the pressure vessel and <br /> enough air pressure(via the hand pump)is applied to force wader through;the filter cartridge into <br /> the sample books. The pressure vessel is washed in Alconox, steam cleaned, and rinsed 'with <br /> deionized water between wells. A new fiber cartridge is used at each welL <br /> Samples willbe labeled with a unique sample identification number, Project identification <br /> number,sample location,and date and time sampled. Samples will be transported to the contract <br /> laboratory under strict chain-of-custody procedures._ <br /> "•) <br /> 83849- .. <br /> 23-4 . FO 1%231 OR325 A-9 July 14,2000 <br /> 2000 Kkkrdeex,h <br />