Quantcast Pilot or Bench Scale Tests - nav20020

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Concurrent Technologies Corporation
Remediation Survey
Ground Water Pump and Treat with an Air Stripper
Page 3
C.
Contaminants Present
1.
Source of Contamination (e.g., gasoline spill):
TCE spills, minor pipe
leaks
2.
Horizontal Extent of Site: Approx. 700 ft x 700 ft
3.
Vertical Extent of Site:
At least 125 ft below grade.
-5 - 100 oF
4.
Temperature Range at Site:
5.
Contaminant Names and Concentrations in Ground Water (ppm):
(Maximum Concentration observed in pumping well)
Trichloroethene (TCE): 18 ppm
1,2-Dichloroethene (1,2-DCE): 67 ppm
Vinyl Chloride: 15 ppm
III.
PILOT OR BENCH SCALE TESTS
A.
Pump Test
(3 different wells)
1.
Type (e.g., step test, continuous discharge):
Constant rate (all 3 tests)
2.
Test Duration:
Aquifer Test 1: 72 hours
Aquifer Test 2: 72 hours
Aquifer Test 3: 44 hours
3.
Pump Test Rate: 25 GPM for all 3 tests
4.
Pumping Well
(all bedrock wells)
a.
Type:
All 6" diameter single-cased monitoring wells.
b.
Open-hole Interval:
Aquifer Test 1: 26-41 ft BG
Aquifer Test 2: 20.5-60 ft BG
Aquifer Test 3: 69-84 ft BG
c.
Packer Depth:
N/A
5.
Observation Well (all monitoring wells)
a.
Type:
4" overburden wells and 6" bedrock wells.





 


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