Laserfiche WebLink
u •k .+� °t Syr ..4�:r �. "t"•�..., ,.-R`�r' w y .Yt � "� _ <br /> a <br /> EXHIBTF A <br /> DESCRIPTION OF FIELD METHODS <br /> Measurements of the static water level were taken"in each well prior to commencing purging,and <br /> a check for floating product was also made at that time. <br /> Prior to sampling, the monitoring wells were purged using a diaphragm pump (supphed by,- <br /> Armour <br /> y;Armour Petroleum Services). The wells were purged of a minimum of three well volumes, it <br /> possible,or until they went dry. A well volume is defined as the amount of groundwater in the <br /> well casing and in the filter pack, at an assumed porosity of 35 percent. Measurements of pH, <br /> specific conductance, qnd temperature of the groundwater were taken at regular intervals during <br /> pumping. After pinging, each well was sampled with a disposable bailer equipped with a <br /> bottom-emptying valve. The sample was drained directly through the bottom valve into two 40- <br /> milliliter glass vials with Teflon-lined septa. <br /> sampling activity was removed from tl,e site by Armour <br /> All groundwater produced during the <br /> Petroleum Services. <br /> s • <br /> { <br />