In Situ Flushing Site Profiles
In Situ Surfactant Flushing and Dual-Phase Extraction at Tyson Feed Mill in Springdale, Arkansas
Site Information |
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Name and Location: |
Tyson Feed Mill, Springdale, AR |
Is this a Superfund Site? |
No |
No |
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In 2005, diesel fuel was observed on the ground surface as free product during an investigation of a malfunctioning process boiler and its associated fuel supply. Additional investigation found diesel fuel on the ground between an aboveground storage tank (AST) and the feed mill building. Approximately 250 gallons of diesel fuel was likely released. Piping associated with the AST was found to be in poor condition and was either removed or capped in place. Site investigations were conducted in 2006 and 2007. Five mobile dual-phase extraction (MDPE) events were conducted from March 2008 through January 2009, which recovered a total of 913 pounds (148 gallons) of free product and 7,395 gallons of liquid. |
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Cleanup Program: |
State |
Site Type(s): |
Aboveground Storage Tank |
Project Information |
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Project Name: |
In Situ Surfactant Flushing and Dual-Phase Extraction at Tyson Feed Mill in Springdale, Arkansas |
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Project Start Date |
August 2010 |
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Project Completion Date |
August 2010 |
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Complete |
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Full |
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Bedrock |
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The objective was to conduct free product recovery and mobile dual-phase extraction (MDPE) to achieve site closure. |
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Cleanup Goals: |
The goal was to reduce free product to the maximum extent practicable. |
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In early August 2010, bench-scale testing was performed to determine the concentration and types of surfactants to be used in the field application. On August 11, MDPE was conducted for 16 hours at 10 wells to lower the water table and recover free product (diesel) prior to the surfactant injection; 326 pounds were recovered. Surfactant injection was conducted on August 12 and 13 at seven monitoring wells. More than 500 gallons of surfactant was added to each well under atmospheric conditions. A second MDPE event was conducted on August 31 to remove residual contamination and 102 pounds of free product were recovered. A flame-ionization detector (FID) was used for total organic vapor measurements during MDPE operation. The maximum observed on August 11 was 40,000 parts per million by volume (ppmv), while the maximum observed on August 31 was 8,050 ppmv. From both MDPE events, a total of 10,500 gallons of groundwater and surfactant were recovered for permitted disposal. |
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Are performance data available? |
Yes |
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Trace level of free product was measured in 1 well (0.04 foot) and 2 wells (0.12 and 0.05 foot) prior to the two MDPE events on August 11 and 31, respectively. Groundwater monitoring events on September 14 and 28, 2010 found no free product in any monitoring well. |
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Cost of surfactant injection was $8,285. |
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All ten monitoring wells were plugged and decommissioned in December 2010. On December 16, 2010, the Arkansas Department of Environmental Quality issued a No Further Action determination for the AST release at this site. |
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Responsible Party(s): |
Private |
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Dec 20, 2012 |
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Media Information |
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Soil |
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Technology Information |
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Technology: |
Surfactant Flushing (In Situ) |
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Technology Type: |
In Situ |
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Surfactant |
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Disposal |
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Surfactant (type not specified) |
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Contaminant Information |
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Contact Information |
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Name and Address: |
Gerald Delavan, P.G. |
Affiliation: |
Arkansas Department of Environmental Quality |
Role: |
Regulator |
Primary Contact? |
Yes |
Phone: |
(501) 682-2074 |
Fax: |
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Email: |
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Web Address: |
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Vendor: |
Enercon Services, Inc. |
Arkansas Department of Environmental Quality. 2011. Memorandum of Review-Tyson Feed Mill AST. From Regulated Storage Tank Division Staff. August 30. http://www.aoma.org/Tyson_Feed_Mill_AST_Springdale.pdf |
