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1 <br /> 1 <br /> 1 <br /> 1 The rig was then moved to HBH #b, using the same procedures as <br /> descrubed above. Plate IV gives details of the work performed. <br />' At the completion of the augers ng operations, the three holes <br /> were filled with a cement-bentonite slurry under the direction of <br /> H. Knoll of the County EHD. The samples were transported to the <br />' laboratory by the geologist under proper chain of custody, with <br /> instructions to test for BTEX. <br />' The results of the laboratory analysis, (Exhibits A, BO & G. ) <br /> revealed that very minor amounts of Toluene were detected in <br /> several of the samples; Benzene, Ethlybenzene and Xylene were all <br />' below detection 12-mits. Utilizing the Environmental Fate <br /> worksheet , (Table 2-4, ) from the LUFT Manual , it was determined <br /> that the levels of Toluene as measured are all below cleanup <br /> levels; refer to Exhibits D. E, & E for copies of those <br />' worksheets. <br /> An analysis of the soil profiles, contaminant levels and <br /> locations suggests that there may have been other sources for the <br /> residual Toluene that was detected. The contamination found in <br /> HBH #4, 5, & b, may have been caused by the dumping of paint <br />' thinners, solvents, or a variety of [other substances in the open <br /> field. According to available records, that parcel has been <br /> vacant for many years, which would make it a good site for <br /> disposal of a variety of wastes. A main line of the SF railroad <br />' borders the property an the west; there is no way of estimating <br /> the amounts and types of materials that would be leaked or <br /> spilled from that activity. The fact that only Toluene was <br />' detected in those three borings leads credence to the possibility <br /> that there may have been other sources for the contamination. <br /> In any case, the remaining levels of Toluene are far below the <br /> allowable limits for leaving in place as determined by the <br /> Environmental Fate Worksheets, and further investigative work <br /> does not appear warranted. Benzene was the only substance <br />' encountered on the Hammertown property which exceeded the LOFT <br /> Manual allowable limits, (HBH #2; ) all others fall far below <br /> those standards. <br /> The only domestic water well in the area is located at the corner <br /> of Swain & Tam O'Shanter; it is tested on a regular bases and has <br /> not recorded any "hits" from hydrocarbon-based compounds. <br /> At this time, my client has not finalized plans for further work, <br /> i. indeed any is warranted. We would appreciate your review and <br /> 2 <br /> 1 <br />