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YINAGEItS DESIf3EF5lpKIliNIfS
<br />Table 2
<br />Summary of Groundwater Analytical Results
<br />August 1994 through December 1995
<br />ND - Not detected above laboratory quantification limit indicated in parenthes,s
<br />As shown in the table, toluene, ethylbenzene and xylenes were not detected at concentrations
<br />exceeding the detection limit of 0 5 µg1 L in any well TPH-D was detected in two of three
<br />wells at the site, MW -1 at 62 µg/L and MW -2 at 52 µg/L.
<br />4.0 SUMMARY AND RECOMMENDATIONS
<br />The following is a summary of the results of the Fourth Quarter 1995 groundwater sampling
<br />event at 7759 South Airport Way, Stockton.
<br />• Groundwater flow in the vicinity of the former USTs is towards the northwest
<br />• This is the third consecutive quarterly sampling event at the site in which TPH-D
<br />constituents were detected in a sample collected from well MW -1 The
<br />concentration of TPH-D detected in MW -1 was the same as the concentration
<br />L \PR0iECr=ANj0Q\TMAD4rH = 6 12 lm my 1996
<br />Benzene
<br />Toluene
<br />Ethylbenzene
<br />Xylene
<br />TPH-D
<br />Well Number
<br />Sample Date
<br />Ag/L
<br />µg/L
<br />µglL
<br />µg/L
<br />µg/L
<br />MW -1
<br />August 1994
<br />NDS, 0)
<br />ND(, p)
<br />ND(, 0)
<br />ND(, o)
<br />ND(,)
<br />March 1995
<br />NDro 5)
<br />ND(,,)
<br />ND(o5)
<br />ND(O 5)
<br />ND(m)
<br />June 1995
<br />ND(D 5)
<br />ND(,5)
<br />NDro 5)
<br />ND(0 5)
<br />76
<br />September 1995
<br />NDro
<br />NDro 5)
<br />NDro)
<br />ND(j) 5)
<br />62
<br />December 1995
<br />ND(o s)
<br />NDro 5)
<br />ND(,,)
<br />ND(O 5)
<br />62
<br />MW -2
<br />August 1994
<br />ND(IA)
<br />ND(1,0)
<br />ND(1 Q)
<br />NDc,A)
<br />ND(,)
<br />March 1995
<br />ND(,,,)
<br />NDro,)
<br />NDro s)
<br />ND(,,)
<br />ND(Sm
<br />June 1995
<br />NDro 5)
<br />NDro
<br />ND(, 5)
<br />NDro,)
<br />ND(SO)
<br />September 1995
<br />ND(O 5)
<br />NDro 5)
<br />ND(0 5)
<br />ND(,5)
<br />ND(30)
<br />December 1995
<br />ND(, 5)
<br />ND(o 5)
<br />ND(, 5)
<br />ND(,s)
<br />52
<br />MW -3
<br />August 1994
<br />ND(, o)
<br />NDO Q)
<br />ND(, Q)
<br />ND(, o)
<br />ND(,)
<br />March 1995
<br />NDro 5)
<br />ND,,)
<br />NDro 5)
<br />ND(O s)
<br />ND(50)
<br />June 1995
<br />ND(os)
<br />ND(O 5)
<br />NDro 5)
<br />ND((, 5)
<br />690
<br />September 1995
<br />1.2
<br />NDro
<br />NDro s)
<br />NDro3j
<br />61
<br />December 1995
<br />ND(O 5)
<br />NDro 5)
<br />ND(,,)
<br />NDro 5)
<br />ND(5m
<br />MW -4
<br />March 1995
<br />ND(O 5)
<br />ND(O s)
<br />ND(o s)
<br />ND(, s)
<br />ND(SO)
<br />(Duplicate of
<br />June 1995
<br />ND(, 5)
<br />ND(,5)
<br />ND(,5)
<br />ND(, p
<br />660
<br />MW -3)
<br />September 1995
<br />ND(O 5)
<br />ND(05)
<br />ND(o5)
<br />NDro 5)
<br />59
<br />December 1995
<br />ND(os)
<br />ND(O 5)
<br />ND(O 5)
<br />ND(,s)
<br />I ND(,)
<br />ND - Not detected above laboratory quantification limit indicated in parenthes,s
<br />As shown in the table, toluene, ethylbenzene and xylenes were not detected at concentrations
<br />exceeding the detection limit of 0 5 µg1 L in any well TPH-D was detected in two of three
<br />wells at the site, MW -1 at 62 µg/L and MW -2 at 52 µg/L.
<br />4.0 SUMMARY AND RECOMMENDATIONS
<br />The following is a summary of the results of the Fourth Quarter 1995 groundwater sampling
<br />event at 7759 South Airport Way, Stockton.
<br />• Groundwater flow in the vicinity of the former USTs is towards the northwest
<br />• This is the third consecutive quarterly sampling event at the site in which TPH-D
<br />constituents were detected in a sample collected from well MW -1 The
<br />concentration of TPH-D detected in MW -1 was the same as the concentration
<br />L \PR0iECr=ANj0Q\TMAD4rH = 6 12 lm my 1996
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