Laserfiche WebLink
U 0 <br /> • Date drilling started and finished. <br /> • Type of auger and size (ID & OD). <br /> • Type of equipment for air monitoring (PID or FID). <br /> • Air monitoring measurements. <br /> • Drive sample blow counts (if California-modified sampler used). <br /> • Well completion and graphic log. <br /> • Driller's name. <br /> • Geologist or,engineer's name. <br /> • Type of drill rig. <br /> • Boring number. <br /> • Surface elevation (if available). <br /> • Sample depths and types. <br /> • Sample recovery information. <br /> • Stratigraphic description with depth. <br /> • Unified Soil Classification System (USCS) description of samples. <br /> • Water levels. <br /> • Drilling observations. <br /> • Map of boring or monitoring well location. <br /> • Weather. <br /> • Other personnel. <br /> For approximately five percent of the samples collected, the soil sample <br /> will be split in the lab, and a matrix spike shall be added by the lab to <br /> two portions of the soil sample (see Section 5.3.4). <br /> 3.2.2 Boring Completion--Grouting and Cuttings Disposal <br /> Once soil sampling is completed, the borings shall be grouted subse- <br /> quent to the removal of'the hollow-stem augers. The grout will be <br /> tremied into the borehole to a depth of 10-feet below ground surface. <br /> Clean sand will then be placed in the backhole to ground surface. The <br /> grout mix will be approximately 1 sack (94 pounds) Portland cement, <br /> approximately 5 pounds powdered bentonite and approximately 8 gal- <br /> lons water. The bentonite powder and water will be mixed prior to the <br /> addition of cement. <br /> Drill cuttings will be drummed as drilling progresses. Once drilling is <br /> completed, the drilling cuttings will be dumped on the ground and <br /> spread over the site.. <br /> 3-3 <br />