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'as little agitation as possible to reduce potential loss of volatile constituents. Major Sons, TDS, and metals analyses Cm non-preserved containers) Vn®ll be collected next followed by samples.to be collected in preserved containers. Containers will be filled directly from the disposable bailer, immediately capped,and placed in a temperature-monitored iced chest, Caution will be used not to overfill bottles containing a preservative. Temperab= will be monitored by placing. a &ennameter in the chest and ch : g to make sure that there is*sufficient ice in the chest to maintain a temperature of`approximately 4 degr= Celsius. The laboratory will measure; docthnen4 and.report the temperature of the sample container upon arrival at the laboratory.. The analytical laboratory places a total of 2 ml of nitric acid-in some of the I liter bottles to reduce the pH to below, 2. On an annual basis an extra preserved bottle, will be filled with groundwater and-thc PH measured in the bottle: It is*assumed that the PH will be-below 2, Jfit is not the fielld technician will add nitric acid is amounts until the pH is below 2. This added quantity of acid will be placed in all the preserved botdcs.dunri.g the following monitoring rounds until it is checked again the follo -y" -. Sample.:pH•-will_be_confiraaed:at:the-: laboratory and recorded.- Deviations will be documentedand reported by the laboratory: " Samples:to be submitted for metals analysis filtered in the field.- Filtering- will be 0Performed using an in line. filter.mechanism which the-pumping Process of.the-dedicated Pump to draw water tbrouigh the 4 micron-filter- A new filter will be used at each well. The new filters will have a minimum of one filter volume of groundwater prt--�d through them to reduce adsorption effects. ?bra actual filtered-sample.will not be collected.until a minimum of two filter volumes of groundwater has bean passed dIMU6 the. filter. For *Mlls without dedicated pumps, the.samples are u2nsferred froua the bailer,through a filter apparatu$, into the apprapriate sample container. The$iter apparatus consists of a pressure vessel, a hand-operated Pressure Pump, and a filter-cartridge Water frgm the bailer is placed in the pressure vessel .and enough air pressure(via the hand pump)is applied to force water through the filter cartridge into the sample bottles. The pressure vessel is washed in Alconox, steam cleaned, and ainsed'with delonized water between wells_ A new filter cartridge is used at each well_ Samples will. be labeled with a unique sample i cation number, project identification number,sample location,and date and time sampled. Samples will be transported to the contract - laboratory under strict chain-of-custody procedures- '423-493949-FO 1123 1 rocedures-83844-FO11231 ORM A-9 July 14,2000 2000 KkIa :{id*4 to-- -