Laserfiche WebLink
IiLrman he HLlLn % Marina third Quarter 1998 Groundwater Monitoring <br /> N OVLmber 23 1998 <br />' Page 4- <br /> from MW-4 Fhe laboratory analytical results of the, groundwater samples are presented beloxv in Table 2 <br />' Historical groundwater monitoring data are included in I able 4, in Sc,ctiOn 3 5 <br /> I TABLE 2 <br /> Laboratory Analytical Results <br /> Groundwater Samples (September 30, 1998) <br />' Oxygenates/Additives <br />' B T E X i'PH-G MTBE Ethanol tert- DIPE ETBE TAME <br /> Butanol <br /> Detection 03 03 03 06 0 OS 1 0 1 0 10 1 6 1 6 1 0 <br /> Limits ug/l 1Zg/l pg/I and mg/1 µg/1 µAll µg/l lig/1 n/l �tg/l <br />' Analytical Method 602 602 602 602 5030 8260 8260 8260 8260 8260 8260 <br /> Sample I D <br /> 1432-MWI-9/306/98 ND ND ND ND ND ND I ND ND ND ND ND <br /> 1432-MW2-9/30/98 NDS 7 0 ND* NDS` NDS' 59,000 ND* ND* ND* ND* 270 <br />' 1432-MW3-9/30/98 ND* ND* ND* ND* ND 5,900 ND* ND* ND* ND* M221432-MW4-9/30/98 35 ND* 15 13 02 3 7 ND ND ND ND41432-MW5-9/30198 ND ND ND ND ND ND ND ND ND ND <br />' I1nit Conversions Analytical <br /> µg/1 parts per billion(ppb) BT1-X —beniene toluene,ethyl benzene and xylLne <br /> mg/l parts per million (ppm) TPH-G —total petroleum hydrocarbons,quantified as gasoline <br /> ND none detected at or above laboratory reported detection limit <br /> t M1 B6 methyl tert-butyl ether <br /> tert Butanol=tertiary-butanol <br /> DIPE di-isopropyl ether <br /> ETBE=ethyl tertiary-butyl ether <br />' TAMF=tertiary-amyl methyl ether <br /> ND* - not detected at or above a raised laboratory reported detection limit(raised due to elevated <br /> MTBI� concentration),see laboratory reports for raised detection limits <br /> .1 ansate sample <br />' 3 4 INTRINSIC BIOREMEDIATION PARAMETERS <br /> The results of intrinsic bioremediation testing are summarized in Table 3, on the next page Intrinsic <br />' bioremediation parameters analyzed for by the laboratory include nitrate, sulfate, ferrous iron, and total <br /> alkalinity Intrinsic bioremediation parameters measured in the field include dissolved oxygen, oxidation- <br /> reduction potential, pH, electrical conductivity, and temperature Although intrinsic bioremediation testing <br /> tresults indicate that subsurface conditions may be conducive to the aerobic and/or anaerobic breakdown of <br /> petroleum hydrocarbons, additional monitoring of the intrinsic bioremediation is necessary to evaluate the <br /> potential for intrinsic bioremediation at the site <br />' � CONDOR <br />