ARCHIVED REPORTS_XR0012599 - Laserfiche WebLink

Home Browse Search

x: 100' tape, owing to fencer, buildings and stored equipment, the measurements are approximate only. The three auger holes were drilled u- californiaosplit spoon 6 1/4" ID hollow sinal OD, tem auger and a 2" sampler. All auger flights were steam cleaned at the shoo and brought to the location clean. core samples were taken at 5 ft. intervals by driving the sampler out the end of the hollow stein auger and retrieving by cat head line. Any equipment reused was washed in a 3 step system using TSP in the first waih and rinsed i sedwertfinaln the two were collected each location, long by 2" diameter samples ss tubes, Teflon end covers an using laboratory supplied bra plastic caps with the best sample chosen for testing. All samples were sealed with duct tape, labeled and pacers in the coolein r chest. 6" brass tubes were used for space the core barrel (only 6" of care was collected) • approximate locations of the actual samples are marked on the sample logs. All samples were examined for odor and visual contamination, described, sealed with Teflon enabeled cover cloth and plastic caps, sealed with duct tape, and placed in the cooler chest. All samples were collected by Dennis Allen, CEG. WELL DRILLING, SAMPLING, AND COMPLETION OPERATIONS MW # 1 The location was moved about 10 feet southwesterly from that proposed owing to nearby overhead power lines . The site was about S feet from the original excavation and the original sample site that showed some slight contamination. r Drilling operatiotts commenced at about 10: AN. Aertion opas was cut out )f the 2" asphalt cover and boring p proceeded, The well was auger drilled to about 35ocbyl , with split spoon cores taken at 5 intervals; appr imately 5 ' 10' 151 , 20' and 25' bgl . The water table was located by the driller at about 25'-26' bgl • For reference, see th log and completion diagram for MW # 1 (Figure 2) cuttings were placed in 55 gallon drums with locking covers and stored on site until test results are available. The soils are described as follows: From the asphalt cover to --2 1/21 , moist, dark brown silty-sand, fine coarse to med nd grained; from -2 1ium- /2to' -5' , brown, pebbles; -5' to- 15' , silty sands, some coarse material; -15' to about --15 1/2' , light tan clay; -cl 1/2' to -1gummy, medium to coarse sand; -18' to -25' , tan clay' moist, gummy, streak of sandy clay at -20' to -21 1/2' ; -25 ' 26 1/2' , to - b -- - --- uaatz-_sand,__ water at about -25 to -26' , wt coarse;_-blue-grey -�1 T•-p, } , level thendromoist,o se t -but norobviousom -26 lwateroin3cuttings. ani clayey- 3