Laserfiche WebLink
- CES <br /> GENESIS ENGINEERING&REDEVELOPMENT <br /> clear drilling locations. Approximately two weeks prior to drilling, Underground Service <br /> Alert (USA)will be notified so that utility clearance inspections can be scheduled. <br /> Encroachment permits and/or access agreements will be obtained for off-site locations. <br /> Upon completion of field sampling activities, disturbed areas will be restored to a level that, <br /> as closely as practical, approximates the conditions at the beginning of the field work. <br /> 2.2 Drilling and Logging Techniques <br /> All drilling activities shall conform to state and local regulations and will be overseen by <br /> either a California Registered Geologist or Professional Engineer. The following procedures <br /> will be used for the drilling of each exploratory boring and collection of subsurface soil and <br /> groundwater samples. <br /> 2.2.1 Direct Push Drilling <br /> Direct push drilling technology will be used to advance borings for grab groundwater <br /> sampling. The direct push drilling process consists of a truck mounted or limited access <br /> hydraulic system used to push a 4-foot long, 2-inch diameter rod into the subsurface. <br /> Continuous soil samples will be collected and logged to the maximum depth of the hole. The <br /> anticipated maximum depth of the reconnaissance borings is 25 feet. <br /> All direct push boreholes will be abandoned according to state and county guidelines. <br /> Completed boreholes will be grouted from the bottom up using a tremie pipe with a high- <br /> solids bentonite grout or bentonite Hole Plug°. The borehole will be backfilled to within 1- <br /> foot of the ground surface. Depending on the existing surface material, a concrete, asphalt, <br /> or soil plug will be installed at the surface of each boring location. <br /> Soil cuttings generated during drilling activities will be monitored with an organic vapor <br /> monitor as part of the air monitoring/sampling program described in the Project's Health and <br /> Safety Plan. Soil cuttings will be placed in 55-gallon drums, labeled, and moved to a <br /> common drum staging area. <br /> 2.2.2 Auger Drilling <br /> Hollow-stem auger drilling technology will be used to advance the borings for installation of <br /> the monitoring wells. The monitoring well boreholes will be advanced using a truck- <br /> mounted drill rig equipped with hollow-stem augers. Continuous soil samples for logging <br /> purposes will only be collected in all monitoring well boreholes. The anticipated maximum <br /> depth of the monitoring well borings is 25 feet. <br /> William DePaoli Property 2 of 15 <br /> Sampling and Analysis Plan <br /> June 2009 <br />