|
KEI-P89-1104 .QR2
<br /> August 7 , 1991
<br /> Page 2
<br /> KEI returned to the site on November 20, 1989 in order to collect
<br /> soil samples from the on-site product pipe trenches. Four samples,
<br /> labeled P1 through P4 , were collected from the product pipe
<br /> trenches. Two samples, labeled VP1 and VP2 , were collected from
<br /> the vapor pipe trenches, and one sample, labeled WPI, was collected
<br /> from the waste oil remote-fill pipe trench. All seven soil samples
<br /> were collected at depths ranging from 2 . 5 to 3 . 5 feet. Pipe trench
<br /> sample point locations are as shown on the attached Site Plan,
<br /> Figure 4 .
<br /> In an attempt to remove as much of the contaminated soil as
<br /> possible in the vicinity of the fuel tank pit, KEI returned to the
<br /> site on December 5 , 1989 to observe additional soil excavation in
<br /> the area of sample points A2 and B2 , as described in KEI 's work
<br /> plan (KEI-P89-1104 .P1) dated November 22 , 1989 . Soil was excavated
<br /> from the southerly halt of the fuel tank pit to a depth of 26.5
<br /> feet. Two soil samples, labeled A2 (25. 5) and B2 (26. 5) , were
<br /> collected from the fuel tank pit below sample point location A2 at
<br /> a depth of 25. 5 feet, and below sample point location B2 at a depth
<br /> . of 26. 5 feet, respectively. Four soil samples, labeled SW1 (13) ,
<br /> SW1 (19) , Sw2 (20/13) and SW2 (20/19) , were also collected from the
<br /> ' tank pit sidewalls at depths of 13 and 19 feet. Sample point
<br /> locations are shown on the attached Site Plan, Figure 3 . Mr.
<br /> Harlin Knoll of the SJCPHS was present during sampling.
<br /> KEI again returned to the site on December 7 , 1989 in order to
<br /> complete sampling of the southerly half of the fuel tank pit. Two
<br /> soil samples, labeled SW3 (20/13) and SW3 (20/19) , were collected
<br /> from the tank pit sidewalls at depths of 13 and 19 feet, respec-
<br /> tively. In addition, one soil sample, labeled NSW, was collected
<br /> from the northerly sldewall of the new fuel tank pit at a depth of
<br /> 13 . 5 feet. Sample point locations are as shown on the attached
<br /> Site Plan, Figure 3 . On December 13 , 1989, KEI completed sampling
<br /> of the old fuel tank pit when three sxdewall soil samples, labeled
<br /> SW4 (3) SW5 and SW6, were collected from the northerly half of the
<br /> old fuel tank pit at a depth of approximately 16 feet. Sample
<br /> point locations are shown on the attached Site Plan, Figure 3 .
<br /> Also on December 13 , 1989, four additional soil samples, labeled
<br /> P1 (6) , P2 (17) , P3 (5) and P4 (8) , were collected from the product
<br /> pipe trenches at sample point locations P1, P2 , P3 and P4 ,
<br /> respectively. Sample depths ranged from 5 to 17 feet. Sample
<br /> point locations are as shown on the attached Site Plan, Figure 4 .
<br /> After sampling, the product pipe trenches were excavated to the
<br /> sample depths. Upon review of the laboratory analyses for these
<br /> samples, a 15-inch diameter casing (14 feet deep) was installed
<br /> . near sample point location P2 (17) .
<br />
|