ARCHIVED REPORTS_2009_13 - Laserfiche WebLink

Home Browse Search

as little agitation aspossr'ble to tetlucc potential loss of volatile constituents. Major ions, T73S, and metals analyses (In non-preserved con ° errs) will be collected next followed by samples to be collected in preserved containers. Containers will be filled directlyfrom the disposable bailer, immediately capped,and placed in a tempt - vnitorpd iced chest. Caution will be used not to overfill bottles containing a preservaziva, T=Wratzzra will be monitored by placing-a thermometer in the chest and checking to a that there is*Sufficient ice in the chest to Maifttain a temperature of approximately 4 degrees Celsius The laboratory WM measure; docftent, and report the temperature of the container n arrival at the Laboratory., ratory., The analytical Iaboratory 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 clUra;preserved bottle will be: filled with groundwater and-the pH measured in the bottle, It is' ed that the pH will be-below 2: If it is not the field technician will add nitric acid in mcasured amounts until the pH is below 2. This added quantity of acid will be placed in all the preserved botdcs.dujing the following ng monitoring ' rounds until it is checked again the following-y —:Sample4H--will_be-confirifted:at:the.: laboratory and recorded. Deviations will be documented and reported by the laboratory. Samples to be submitted for metals analysis filtered in the fieldr Filtering-FriIl be performed using an in line fiber mecbanisrn which xses tire- t pumping PrOc=-of.the-dedicated pump to draw water through the 4 micron-filter A new filter will be used at each well. The new filters will haYe a minimum of one filter volume of groundwater pressurized through tltesn to- rcduca adsorption effects. The actual filtered-sample.wM not be collected-unto a minimum of two filter volumes of groundwater has been ugh th_ Mter. For wwelLs witFiout dedicated pumps, the samples are transferred from the bailer,through a filter app, pito the appropriate sample container. The filter apparatus consists of a pressure vesszL a hand-operated Pressure pump, and a filter Water-from the bailer is placed in the pressure vessel and enough air pressure(via the hand pump)is applied to forme water through the filer caztddge into the sample bottles. The pressure vessel is washed in conox, steam cleaned, and rinsed with deic*cd water between wells. A new filar cartridge is used at eaddh well. Samples will. be labeled with a unique sample ideatificaiion number, project ideaffication, number,sample locution, and date and time sampled- Samples will be transported to the contract - laboratory under strict chain-of-custody procedures_. 23-4939454011231 OR325 A-9 July 14,2044 2000 KkWdder.iaa