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07/29/92 15:12 0919 932 2900 CHAPEL HILL PVCJ002 <br />Gayle Wilson <br />July 7, 1992 <br />Page two. <br />Regarding backfilling of borings, <br />• The current state re ulations, strictly applied, do require that boreholes be <br />grouted or abandoned by some other means through a variance. Proposednew <br />regulations allow for backfilling with grout, clay, or native soil compacted <br />throughout the depth of the borehole. We are attempting to obtain a copy of the <br />proposed rules. You may be interested to note that NCDOT, who is responsible <br />for a lot rif.5eotec.hnic.;p.i drilling thr+ ugh!.,. state. -doh ,� +�:1:�'rfaiy brriiit <br />abandoned boreholes, and they have expressed concerns over the applicability <br />of the rules to conventional geotechnical drilling and other routine excavations <br />that could be classified as "wells". This conflict is still pending. The new rules <br />become effective on September 1. 1992. <br />P.S. We are developing some written criteria for site activities proposed for this project <br />which will become part of our agreement with Bain, Palmer, & Associates and the <br />drilling contractor(s). I will forward a draft of these to you soon for comment. <br />MAT:Jp <br />cc: Butch Joyce <br />Wes Scarlett <br />