Laserfiche WebLink
1 If the vapor concentrations continue to reach or exceed a value of 10 ppm at the site <br /> perimeter for 15 minutes, drilling activities shall be stopped Appropriate regulatory <br /> agencies should be contacted (see contact sheet) Site manager shall continue to monitor <br /> conditions until levels are reduced to background conditions <br />' TABLE 5-1 <br /> Benzene Exposure Limits <br /> (ompound 0%)1A Pt 1 11N r%%A l i 5-SrFL ppm RI-i ppm Odor threshald Odor C haractertstrc %laxlmum tial <br /> ppm ppm Values ppm (oncentrauon to date, <br /> ppm <br /> Elenzenc I l0 5 0 1 4 65 aromatic sweet NA <br /> (CO, <br /> Toluene 100 100 150 100# 1 74 SNeri punieni NA <br /> X)lene 100 100 15o 1000 027 aromatic sweet NA <br /> I'll OIJIA PLn71"%Lb1c I cposurc Lfnut <br /> T1 V ACC,[II T1irc%hold 1 111111 Values <br /> T%1 A T1mL WciEhl d Ascmix <br /> ti I'LL Short I crr 1\pnsurt I nmt <br /> Itl I NIOtiII Recom muldtd I rposurc Limn <br /> C 1 Suspected czrunol-cn 1988 89 ACGII]TLV <br /> rr -W mmlult cclhol, 10 hour TWA 200 ppm 10 minute ccdm& <br /> I <br /> t <br /> 1 <br /> t <br />