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Table 6. Probability of Exceedance of PCE Concentration in Monte Carlo Simulations

of PCE Fate and Transport Analysis a

-

Time

(year)

0.1%

of PCE source concentrationb

1%

of PCE source concentration

5%

of PCE source concentration

10%

of PCE source concentration

OSP Property Boundary

2

100%

0.22%

0

0

5

100%

100%

99.6%

52.72%

10

100%

100%

100%

100%

24th Street

5

100%

81.9%

0

0

10

100%

100%

100%

1.6%

20

100%

100%

100%

88.3%

One mile down-gradient

15

99%

0

0

0

20

100%

99.9%

0

0

30

100%

100%

100%

0

The Willamette River

40

100%

96.9%

0

0

50

100%

100%

9%

0

60

100%

100%

97%

0

a All simulations are performed using a two-dimensional model.

b The PCE source concentration (17,000 g/L).

 


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