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<br /> limit Ili the Sample collected from this well Floating product or Sheens were not observed In the groundwater
<br /> removed groin the monitor -,.ells A slight petroleum hydrocarbon odor was noted In the groundwater sample
<br /> collected from MW-2
<br /> Laboratory analytical results of the groundwater samples collected during the second quarter, 1998 monrtormg
<br /> event were generally consistent with historical quarterly groundwater analyt►cal data Concentrations of M CBE
<br /> detected In Clic samples collected from MW-2 and MW-3 on June, 26, 1998, appeared to reverse a trend of
<br /> Increasing c.oncentratnons historically detected ►n samples collected from these wells
<br /> tjronndwate] elevation rnleasurements (,olle(,ted at the site monitor wells on .lune 26, 1998, indicated that the
<br /> average depth from the ground surface to groundwater was approximately 5 feet The average depth to water at
<br /> the s►tc wr►ti essentially the same on March 27, 1998 and Ione 26, 1998 Groundwater cicvatoon contours
<br /> cstrtnated usdng the depth-to-water mcasurernents collected on June 26, 1998, indicated that the groundwater
<br />' gradient at the sIt(, was generally consistent with the estimated gradient on September 18, 1997 December 31,
<br /> 1997, and March 27 1998
<br /> On ')f.ptembcr 30, 1998, a Condor ►epresentati%L was oil site to conduct quarterly groundwater monitoring
<br /> aLt►v►t►es I aboratory analyses of g►oundwater samples collected from the site monitor wells Indi(,ated that
<br /> BTEX, Ff'll-G and the, selected gasoline oxygenates/additives wcrc; not detected at or above the laboratory
<br /> reported detection limits in the sample collected from MW-1 Ethanol, tertiary-butanol, DIPS, and ETBE were
<br /> not detected at or above the laboratory reported detection limits In any of the groundwater samples The
<br /> laboratory reported detection limits wcrc raised for the groundwater samples collected from MW-2 and MW-3
<br /> due to relatly(,ly high concentrations of MTBI in the groundwater samples callLet(,d from those wells (as
<br /> described below) FAME was detected in Elie groundwater samples collect(,d from MW-2 and MW-3 MTBF
<br /> was detected In the, groundwater ,ainplLs collected from MW-2, MW-3, and MW-4 Benzene ethyl benzene,
<br /> total xylenes, and I Pll-(j were not dLILcted at or above raised laboratory r(,parted detection Ili-nits in the
<br /> groundwater sample. collected from MW-2 A low coricentratlon of toluene was detected In the, groundwater
<br /> sample collected from MW-2 BTI X and 1 P1I41 were not dctceted at or abomc the laboratory reported detection
<br /> 11rnnts In the, groundwater sampl(, ,olkcted from MW-3 111(, laboratory d(,tcetlon limits associated with the.
<br /> I311-X constituents were raISLd for this sampic Relatively low concentrations of benzene, ethyl benzene, total
<br /> xylenes, and I P11-G were detected In the groundwater sample collected from MW-4 1 oluene was not detected
<br /> at or above a raised laboratory detection hrmt In the groundwater sample collected from this well Floating
<br /> product or sheens were not observed In the groundwater purged from the monitor wells Petroleum hydrocarbon
<br /> odors were not detected In the groundwater samples collected from the four monitor wells
<br /> Laboratory analytical results of the groundwater samples collected during the third quarter, 1998, monitoring
<br /> (,vent were, generally consistent with historical quarterly groundwater analytical data Concentration,, of MTBE
<br /> det(,ctcd in the samples collected from MW-2 and MW-3 mcreascd significantly with respect to the second
<br /> I quarter 1998 laboratory analytical results Fhe concentration of M FBE reported for the sample collected from
<br /> MW-3 on September 30, 1998, was a historical high for this constituent In samples collected from this well
<br /> Groundwater elevation measurements collected at the site monitor wells on September 30, 1998, indicated that
<br /> the average depth from the ground surface to groundwater was approximately 5 6 feet The average depth to
<br /> water at tllc, site increased by approximately one-half foot between June 26, 1998 and September 30, 1998
<br /> Groundwater elevation contours estimated using the depth-to-water measurements collected on September 30,
<br /> 1998, Indicated that groundwater gradient at the site Is generally consistent with the estimated gradient on
<br /> September 18, 1997, December 31, 1997, March 27, 1998, and June 26, 1998
<br /> On October 1, 1998 a C ondor representative was on site to conduct quarterly surface water sampling activities
<br /> and collect a ~ample, of the marina's pre-treated and treated drinking water from the facility's water treatment
<br /> system Laboratory analyses of the surface water samples Indicated that a low concentration of toluene was
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