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-as little agitation as possible to redued potential loss of volatile constituents. Major ions, TDS, and metals analyses (n non-preserved'containers) will be collected next fotlawcd by pcsto be collected in preserved containers. Containers wfll be filled directly from the disposable biller, immediately capped,and platter in a - onitored iced chest. Caution WM be used not to overfffl battles con a `va_ Temp=tum will be monitored by placing a thermometer in the chest and ch " g to makesure that their is tient ice an the chest to maffitain a tempemtwc of apprwdmatcly 4 degrees Celsius, a laboratory WM m Casund ent, and rt the tem o the lccontainer 3 P� upon arrival at the Iabtiratory,. The analytical laboratory places a total of 2 of nitric acid-in sortie of-the I liter bottles to reduce the pH to below 2. 4n an annual basis an extra preserved bottle will be filled with groundwater and-the pH measured in the bottle: It is' cd the pH will be ow 2: If it is not the field technician will add nitric acid in amounts until the pH is below 1. This added quantity of acid will be placed in all the preserved botdas.during the following roniwzing rounds until it is checked again the following- —_Sample:-PH---wiU_be.co ed:at:the"-: laboratory and recorded- Deviations will lie documented and reported by the Laboratory ry Samples;to be submitted for ractals analysis-will- tae filtered in the field- Filtering-will be armed using an in line filter mechanism wbich uses the-pumping Pis-,Of.the-dedicated pump to draw water tbrough the 4 micron'.filter- A new fiber will be used at each well. The new filters will have a minimum of one fzlter volume of groundwater Pressurized through them to- reduce. adsorption effects. The actual filtered-sample.will filtered—sample. not be collected-until a_ of two filter volumes ofgroundwater has been passed thrvu& the. filter. For without dedicated pumps,the samples aretrzusferred from the bailer, ffimuO a Mter app into the aPPrOlniate sample container. The fuer apparatus consists of a Pressme vessel,a d-operated PressElre PcrmP, and a filter'cartridge Water m the bailer is placed in the pressure vcsscl and enough air pressure(via the hand )is applied to fo ugh the filter cartridge into the sample bottles. Ile pressurc vessel is washed in conox, slearn cleaned, and 'RYIIIr deicnized water between welts_ A new filter cartridge is at eacb well. Simples will be Libeled with a uniquesample' identificatiion numbtr, project identification number, saMple location, and e and time p1 les wdl be transported to the contract - Laboratory under strict chain-of-custody ._ 83949 01%231OR325 A-9 �q�va y'�f'.r.�'f//�� 9�� July 14,2000 . 2000 MCi13iG daK �