Laserfiche WebLink
20 August 1998 <br /> AGE-NC Project No. 98-0483 <br /> Page 3 of 5 <br /> 3.0. SCOPE OF WORK <br /> The scope of work will initially include the advancement and sampling of one soil probe boring.The <br /> probe boring will be advanced to a depth of 30 feet below surface grade (bsg). However, if field <br /> screening of soil samples indicate that hydrocarbon impaction is present at 30 feet bsg,the probe <br /> boring will be advanced to greater depths. Furthermore, if contamination at the site appears to be <br /> extensive, at least three additional soil probe borings will be advanced and additional soil and/or <br /> ground water samples collected. <br /> Selected soil and/or ground water samples will be transmitted to a state-certified laboratory for the <br /> following analysis: <br /> 1. Total petroleum hydrocarbons quantified as diesel and motor oil, in accordance with EPA <br /> method 8015/5030; <br /> 2. Volatile aromatics (BTEX) in accordance with,EPA method 8020/602. <br /> 4.0. PROCEDURES <br /> -4.1. PROBING AND SAMPLING <br /> Soil probe borings will be advanced using a Geoprobe 5400 soil probing unit equipped with 1.125 <br /> inch diameter probe rods and an attached 2.15-inch diameter soil sampler. Probe borings will be <br /> advanced near the former UST area. Proposed soil probe boring locations are illustrated on Figure <br /> 2. <br /> Discrete soil samples will be collected at five-foot intervals beginning at a depth of 5 feet bsg using <br /> a Geoprobe soil sampling assembly loaded with four pre-cleaned 1.125-inch by 6-inch brass sleeves. <br /> Soil samples will be preserved by covering both ends of the second brass sleeve with Teflon sheets, <br /> capping and sealing with tape. Each sample sleeve will be labeled with the following information: <br /> soil probe boring location, depth,time, date and sampler's initials. <br /> Initially, soil samples will be collected to a depth of 30 feet bsg. If petroleum hydrocarbon-impacted <br /> soil is encountered during probing activities, probe borings may be advanced to greater depths or <br /> additional probe borings will be advanced in an attempt to determine the extent impacted soil. <br /> If ground water is encountered, grab water samples will be collected from selected probe borings <br /> using a Geoprobe water sampling assembly. For the sampling assembly, probe rods will be fitted <br /> with a retractable ground water screen and advanced to the total depth of each probe boring;the rods <br /> Advanced GeoEnvironmental,Inc. <br />