Table 2-4. MLS cosolvent hydrodynamics for the 1998 ethanol flushing test at the
 Sages site.

 MLS Well Pk EtOH Tpk Pk PCE Tpk
 & Depth CET (days) CPCE (days)
 (m bgs) (mg/L) (mg/L)


MLS-1
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m



MLS-2
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m




MLS-3
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m



MLS-4
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m



MLS-6
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m



MLS-7
8.08 m
8.46 m
9.07 m
9.45 m
9.91 m


Mean
Std Dev







Mean
Std Dev








Mean
Std Dev







Mean
Std Dev







Mean
Std Dev







Mean
Std Dev


93.10
80.66
82.53
79.26
29.13
72.94
25.09


100.44
99.60
97.29
97.00
94.37
97.74
2.39



95.53
91.33
92.10
87.01
60.59
85.31
14.15


84.59
95.89
93.31
96.04
89.33
91.83
4.87


88.64
91.60
88.71
80.43
82.76
86.43
4.65


59.82
48.48
63.15
58.51
10.53
48.10
21.70


4593.69
23400.00
8891.92
2289.62
 197.34
 7874.51
 9259.72


 503.17
 3.13
 6151.90
 0.00
 2.05
 1332.05
 2703.11



 2809.92
 288.55
 6666.38
46600.00
25100.00
16292.97
19536.41


 2.50
30200.00
15700.00
27200.00
48200.00
24260.50
17879.81


 546.02
 7826.91
 5362.88
 2640.12
 3106.13
 3896.41
 2785.11


 705.99
 3112.63
 558.75
 2356.45
 112.49
 1369.26
 1293.27


 Lower maximum concentrations of ethanol were observed at the MLSs at the lowest


depths throughout the remedial flow field. Furthermore, each of these locations received ethanol