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L & M OPERABLE UNIT-THIRD QUARTER 2014 SITE STATUS, REMEDIAL SUMMARY,
<br /> AND GROUNDWATER MONITORING REPORT
<br /> Groundwater Monitoring and Sampling
<br /> October 31, 2014
<br /> 2.7.2.2 Fuel Oxygenates and Hydrocarbon Concentrations
<br /> A summary of 3Q14 deep (B-, C-, and D-Zone) concentration trends of TPHg, TPHd,
<br /> TPHo, benzene, MTBE, and TBA in comparison to results reported during the previous
<br /> quarter are presented in the following table. Values in parentheses represent number
<br /> of detections that were reported in 2Q14.
<br /> Number
<br /> Wells With Stable
<br /> Wells With Wells of Wells With
<br /> Number Number or Non-
<br /> Constituent Zone Increased Concentrations Stable or Non-
<br /> of Wells of Wells Detectable
<br /> Concentration Decreased Detectable
<br /> Concentrations
<br /> Concentrations
<br /> MW-16,MW-42, MW-57,MW-60,
<br /> B MW-51 1 (3) MW-59 3 (0) MW-69 3 (3)
<br /> MW-54,MW-64,
<br /> TPHg C MW-63 MW-66 2 (2) MW-65 3 (3) MW-62,MW-67 2 (2)
<br /> MW-55,MW-68,
<br /> D MW-70,MW-72 2 (2) MW-71 1 (6) 4(0)
<br /> MW-73,MW-74
<br /> MW-42,MW-51, MW-16,MW-59,
<br /> B MW-57 3 (6) MW-60 3 (0) --- 0(0)
<br /> MW-54,MW-62, MW-63,MW-65,
<br /> TPHd C MW-64,MW-bb 4 (4) MW-67 3 (3) --- 0(0)
<br /> MW-69,MW-70, MW-55,MW-71,
<br /> D MW-74 3 (3) MW-72,MW-734 4 (5) MW-68 1 (0)
<br /> MW-16,MW-42,
<br /> B MW-57,MW-60 4(4) MW-51,MW-59 2 (1) --- 0(i)
<br /> MW-54,MW-62, MW-63,MW-65,
<br /> C 4(4) 3 (3) --- 0(0)
<br /> TPHo MW-64,MW-bb MW-67
<br /> MW-68,MW-69,
<br /> D MW-70,MW-71, 6 (5) MW-55 1 (3) --- 0 (0)
<br /> MW-72,MW-74
<br /> MW-16,MW-42,
<br /> B --- 0 (i) MW-59 1 (0) MW-51,MW-57, 5 (5)
<br /> MW-60
<br /> MW-54,MW-63, MW-62,MW-65,
<br /> Benzene
<br /> C MW-66 3 (2) MW-64 1 (1) MW-67 3 (4)
<br /> MW-55,MW-68,
<br /> MW-69,MW-70,
<br /> D MW-70 1 (2) --- 0 (i) 8 (5)
<br /> MW-71,Mw-72,
<br /> MW-73,MW-74
<br /> 5ta ntec 2.17
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