Laserfiche WebLink
x <br /> July 11, 1991 <br /> Quik Stop Market No. 132 page 3 <br /> Project No. 3-49132-31 <br /> • survey of the groundwater monitoring wells and related areas of the site <br /> to a known datum; <br /> o review and analyses of all laboratory results; and, <br /> • preparation of this report. <br /> FIELD OPERATIONS <br /> The field operations for this project included: el�lli n,samplindeve opg, and m ging nt, and <br /> of <br /> exploratory borings, groundwater monitoring W <br /> sampling; and site survey. <br /> Exploratory Borings <br /> On April 2, 1991, an Exc--Itech Mobile B-53 drilling rig, equipped with a 4 1J4-inch <br /> ed to dinside diameter hollow-stem auger, an <br /> ed <br /> oil sampling and monitoring stal at onnlthe two )The boringswere gr <br /> us <br /> oggedby an <br /> s <br /> Exceltechwith �lclassified ified So <br /> Classification System the <br /> Soil Color Charts (see Exploratory Boring Logs - <br /> Appendix A). Before and during drilling at the site, all drilling and sampling <br /> equipment was cleaned to reduce the potential for cross-contamination between borings <br /> and between sampling intervals. <br /> Soil samples were collected through the hollow hstem eolo geologist. Wheat npthe desired sample <br /> depth intervals or at the direction of the Excelte g g <br /> depth was reached, a modified esllon lansplit-spoont tiein pdirameterpwas used to collect <br /> brass liner tubes, each six inch g <br /> and retain soil samples. The sampler was advanced IS inches into the undisturbed soils <br /> ahead of the auger by driving it with a 140-pound, rig-operated hammer. After <br /> _ and the sampler, the bottom sample liner was immediately <br /> recovery from the borehole <br /> covered with aluminum foil and a plas;.i intola coo <br /> ller chilleded with a unique <br /> with ice. The soil in <br /> and pertinent sample information, and packed <br /> the remaining sample liners was visually characterized and tested with a portable <br /> organic vapor meter (OVM) for the presence fsoillwasepla$ediwith�he borehole <br /> ors. Upon <br /> completion of field characterization, the examined <br /> cuttings. <br /> Groundwater Monitoring Well Construction <br /> Upon completion of the exploratory boreholes, a groundwater monitoring well was <br /> constructed in the borehole. The monitoring bank and fawere onoyuctedtedsing 2 i ch- <br /> diameter Schedule 40 polyvinyl chloride (PVC) <br />