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Herman&f LJLn s Mannn - I herd Quarter 199H trflltlndWA(er Monitoring <br /> N OVLTrIbLi 21 1998 <br /> Page7 <br /> . TABLE 4 <br /> Historical Groundwater Monitoring Data <br /> (continued) <br /> a r t r 1 PH( t,.tsohnt t 1_PT-i D1lW Ground <br /> Uxygenates 1 Water <br /> Lddrtrvrw k Icv <br /> hcrwi.ne DItsif Motor <br /> Dd <br /> Dt-trt,0on SLATE 0 1 0 l (]1 0 6 0 u5 1 0 10 0 05 005 0 1 <br /> hmts µt.I µy'I �F 1 µml mtuI 11"A mil 1"W1 m�A <br /> %amply l 1) <br /> M4 teunnl, <br /> Point F]w 131011 <br /> MW-t 9,18/97 16 04 20 __ 008 14(1vITHh)• ND \D ND 87^ 7498 <br /> Ra'S A <br /> 1 1[/97 3 5 1 6 lii 120 0 51 4'I MTRE) \T \T \T 181 7794 <br /> A <br /> 3j27/98 52 1 5 45 100 052 ND '4T \T NT 6 77 7698 <br /> 6126/98 38 1r D' 30 42 05 2 3(MTBE) ND \D WD 652 7723 <br /> A <br /> F��77 <br /> '+1Dv t5 13 02 3 7(MTHF) \D ND ND 686 7699 <br /> A <br /> All Wasurements Are In Feet-Flevations Are In Feet Above Mean Sea level <br /> t int C.onvt.rsions Anal <br /> µg/l parts per billion BTFX=bt.nzcnc toluent, cthvl bcnzena Xyk,ne <br /> mg/I parts pLr million TPH-G total petroleum hydrocarbons quantified as gasoline <br /> ND none detLCtLd at or above laboratory detection limits <br /> 'N C not tested for this analyte <br /> MTB! methyl tent-butyl ether <br />' TAMP tertiary amyl methyl ether <br /> all other gasoline additives/oxygu-nates were not detected at or above the laboratory <br /> reported detection limits <br /> -I aboratory detection limits raised due to elevated concentrations See Certificates of <br />' Analysis <br /> 4 THIRD QUARTER, 1998,SURFACE WATER MONITORING <br />' 4.1 FIELD METHODOLOGY <br /> On October 1, 1998, a Condor representative was on site to conduct quarterly surface water monitoring activities <br /> The monitoring activities included the collection of surface water samples from the drainage ditch and island <br />' drainage channel located east and south of the site, respectively The four surface water samples were collected <br /> with a Teflon dipping cup and transferred to two 40-milliliter glass vials fitted with Teflon-lined caps Surface <br /> water samples DDS (drainage ditch south) and DDN (drainage ditch north) were collected approximately five <br /> feet and 100 feet north of Eight Mile Road, respectively Surface water samples IDCW (island drainage channel <br /> west) and IDCE (island drainage channel east) were collected from the western terminus of the island drainage <br /> channel and approximately 100 feet cast of the confluence of the drainage ditch and the island drainage channel, <br /> respectively (refer to Figure 5) <br /> In addition, a sample of the marina's pre-treated drinking water and a sample of the marina's treated drinking <br />' water were collected from the facilities water treatment system located approximately 395 feet northeast of the <br /> former UST area (Figure b, Appendix A) The pre-treated drinking water sample (1432-Inf-10/1/98) was <br /> collected by filling laboratory supplied containers directly from the water treatment system valve labeled "raw <br />' water" The treated drinking water sample (1432-Eff-1011198) was collected by filling laboratory supplied <br /> 41% A��, <br /> t� CONDOR <br />