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| Industry: |
Dry Cleaner |
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| Challenge: |
Extremely low permeability site (10-8 cm/sec) |
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| Solution: |
Multiple Propagations |
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Site Setting or Use: |
Dry Cleaners (2) |
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Location: |
Texas |
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COCs: |
CVOC |
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Treatment Interval Soil Type: |
Clay sitting on chalk |
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Depth to Groundwater: |
8 ft bgs - Wet at clay/chalk interface only |
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Plume Size: |
20,000 SF |
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Injection Array: |
5 Props.* |
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Baseline Conditions: |
VOCs at 200 ug/l |
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Current or Final Conditions: |
NFA status granted |
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| Industry: |
Dry Cleaner |
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| Challenge: |
Buyer's lender unwilling to finance purchase due to CVOC plume |
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| Solution: |
Pay for Performance Contract with ERFS provided assurance and purchase executed |
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Site Setting or Use: |
Dry Cleaner |
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Location: |
Florida |
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COCs: |
CVOC |
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Treatment Interval Soil Type: |
Fine to medium sand |
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Depth to Groundwater: |
7 ft bgs |
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Plume Size: |
4,000 SF |
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Injection Array: |
4 Props.* |
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Baseline Conditions: |
Avg. PCE concentration at 300 ug/l, Hot well at 25,000 ug/l PCE |
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Current or Final Conditions: |
PCE averages at 10 ug/l |
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| Industry: |
Dry Cleaner |
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| Challenge: |
Difficult access due to location of plume under building and ongoing business on active site requiring work to be conducted during off-hours |
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| Solution: |
Treatment in progress utilizing Propagation and vertical well injection methods without disruption to ongoing business |
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Site Setting or Use: |
Dry Cleaners |
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Location: |
New Jersey |
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COCs: |
CVOC |
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Treatment Interval Soil Type: |
Fine sand |
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Depth to Groundwater: |
7 ft bgs |
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Plume Size: |
7,500 SF |
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Injection Array: |
6 Props.* plus 8 vertical wells |
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Baseline Conditions: |
CVOC avg 400 ug/l and over 20 mg/kg in soil |
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Current or Final Conditions: |
Approximately 70% reduction |
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| Industry: |
Dry Cleaner |
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| Challenge: |
Difficult access due to major utility juncture in plume area with high water table |
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| Solution: |
Costs minimized by building injection system during excavation to allow direct access to residual soils |
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Site Setting or Use: |
Dry Cleaner |
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Location: |
New Jersey |
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COCs: |
CVOC |
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Treatment Interval Soil Type: |
Fine sand |
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Depth to Groundwater: |
3 ft bgs |
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Plume Size: |
4,000 SF |
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Injection Array: |
Laterals laid in soil excavation with vertical surrounding |
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Baseline Conditions: |
Total CVOC at 5 mg/l |
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Current or Final Conditions: |
Injectors installed and initial injections completed; groundwater sampling and polishing to continue |
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* Propagation delivery devices
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