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Chlorinated Solvents - Case Study SUPERFUND SITE / IOWA RESULTS AFTER 3 MONTHS OF OPERATION
On February 16, 2001, Global BioSciences, Inc. (GBI) implemented Butane Biostimulation Technologies at a Superfund Site in Iowa for a pilot study approved by the Iowa DNR and USEPA to remediate a chlorinated solvent plume. The site is the location of a former industrial facility. The site geology is composed of sand, silt and some clay, with an aquifer, the local source of drinking water, 100 feet deep. While there was significant reduction in VOCs in wells within the butane treatment zone, the wells outside the treatment zone served as controls.
Inside
treatment zone |
Outside
treatment zone |
| |
MW-1 |
MW-2 |
|
MW-7 |
| DATE |
2/16 |
5/09 |
2/16 |
5/09 |
DATE |
2/16 |
5/09 |
| 1,1,1-TCA |
8,700 |
0 |
7,160 |
0.6 |
1,1,1-TCA |
0 |
0 |
| 1,1-DCA |
17,400 |
1,900 |
5,170 |
0.7 |
1,1-DCA |
1130 |
990 |
| 1,1-DCE |
1,900 |
0 |
1,400 |
0 |
1,1-DCE |
40 |
40 |
| cis 1,2-DCE |
26,400 |
6,380 |
5,720 |
1.9 |
cis 1,2-DCE |
240 |
190 |
| TCE |
6100 |
420 |
1,400 |
0 |
TCE |
0 |
0 |
|
