Description
Historical activity that resulted
in contamination.
| The former One Hour Martinizing Cleaner is located on approximately half an acre in Jackson, TN and operated between 1983-2003. The site building was demolished in 2005 after being damaged by a tornado. The contamination source area is located near the former drycleaning machine area and the former dumpster area. The contaminants present at the site are drycleaner solvents as well as BTEX and naphthalene which is associated with a former gas station present on the site property prior to 1983. Remediation Status: In groundwater monitoring |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant |
Media |
Concentration (ppb) |
Nondetect |
| Benzene |
groundwater |
220 ppb |
|
| Benzene |
soil |
|
|
| cis-1,2-Dichloroethene |
groundwater |
720 ppb |
|
| ethylbenzene |
groundwater |
860 ppb |
|
| Tetrachloroethene (PCE) |
groundwater |
230 ppb |
|
| 1,2,4-trimethylbenzene |
groundwater |
820 ppb |
|
| 1,2,4-trimethylbenzene |
soil |
|
|
| 1,3,5-trimethylbenzene |
groundwater |
300 ppb |
|
| 1,3,5-trimethylbenzene |
soil |
|
|
| naphthalene |
groundwater |
170 ppb |
|
| Trichloroethene (TCE) |
groundwater |
150 ppb |
|
| toluene |
groundwater |
300 ppb |
|
| trans-1,2-Dichloroethene |
groundwater |
27 ppb |
|
| Vinyl Chloride |
groundwater |
370 ppb |
|
| m-Xylene |
groundwater |
2,300 ppb |
|
Site Hydrology
| Deepest Significant
Groundwater Contamination: |
|
20ft bgs |
| Plume Size: |
|
|
| Average Depth
to Groundwater: |
|
12.5ft |
Lithology and Subsurface Geology
|
|
brown, sandy clay
Depth: 0-75ft bgs
75ft thick
Gradient: 0.007ft/ft
|
Claiborne Formation sands of the Middle Eocene Series
|
|
sand
Depth: 75-325ft bgs
250ft thick
|
Pathways and DNAPL Presence
 Groundwater
 Sediments
Soil
DNAPL Present
|
Vapor Intrusion Pathway
Has the potential for vapor intrusion (VI) been evaluated? |
|
No
|
Has a vapor mitigation system been installed? |
|
|
Additional VI Information: |
|
VI Pathway not evaluated due to building demolition. |
Remediation Scenario
Cleanup
Goals: |
|
The cleanup goals for the site are to reach drinking water standards with an interim goal of plume contraction.
|
Technologies
In Situ Biostimulation |
|
Why the technology was selected:
Biostimulation and Zero valent iron (ZVI) was recommended by Innovative Environmental Technologies and selected at this site due to the presence of the reaction products TCE, cis-1,2-DCE, and vinyl chloride. The presence of these compounds indicate that reductive dechlorination is occurring at the site at a rate that needed to be stimulated both abiotically and biotically with the use of organic hydrogen donors and ZVI.
Date implemented:
Winter 2008
Final remediation design:
In December 2008, Innovative Environmental Technologies Inc utilized 21 direct-push injection points to distribute 2,755 pounds of ZVI, 1,050 pounds of calcium propionate, 420 pounds of oxygen scavenger, 420 pounds of nutrients, vitamins B-2 and B-12, 3,050 pounds of HRC and 150 pounds of polymeric support into the subsurface from 10-15 feet bgs and 35-40 feet bgs.
Results to date:
In shallow MW-22(8/08 to 8/09) PCE concentrations have dropped from 26ppb to bdl while TCE dropped from 110ppb to 2.2ppb and cis 1,2 DCE has decreased from 37ppb to 24ppb.
Vinyl Chloride has increased from 11ppb to 18ppb.
In deep MW-23 (8/09 to 8/09) concentrations of sec and tert butylbenzene have increased from bdl. to 1 ppb. PCE has decreased from 110ppb to 38ppb. TCE has decreased from 150 ppb to 36ppb. Cis 1,2 DCE has decreased from 280 ppb to 220 ppb while Vinyl Chloride has decreased from 120ppb to 58ppb.
In shallow MW-19 from 8/08 to 8/09 concentrations of PCE have increased from 20ppb to 38ppb. TCE has increased from 23ppb to 82ppb. Cis 1,2 DCe has increased from 21ppb to 80ppb and Vinyl Chloride has decreased from 54ppb to 35ppb.
In deep MW-16 from 8/08 to 8/09 concentrations of PCE and TCE have decreased to bdl from 230ppb and 96ppb resepectively. Cis 1,2 DCE has increased from 71ppb to 130 ppb and Vinyl Chloride and trans 1,2 DCE have both decreased to bdl from concentrations of 39ppb and 11ppb respectively.
In shallow MW-21 from 8/08 to 8/09 PCE and TCE have remained bdl. Cis 1,2 DCe has increased from 3.8ppb to 10ppb and Vinyl Chloride has decreased from 15ppb to bdl.
In deep MW-24 from 8/08 to 8/09 PCE increased from 14ppb to 15ppb, TCE has decreased from 36 to 20 and Cis 1,2 DCE has decreased from 720ppb to 240ppb. Vinyl Chloride has decreased from 320ppb to 150ppb.
Total CVOC's on the site have decreased by an average of 52.4% as of 9/09.
Next Steps:
Next groundwater monitoring event- March 2010
Cost to Design and Implement:
Remediation-$309,813
|
In Situ Zero Valent Iron |
|
Why the technology was selected:
Biostimulation and Zero valent iron (ZVI) was recommended by Innovative Environmental Technologies and selected at this site due to the presence of the reaction products TCE, cis-1,2-DCE, and vinyl chloride. The presence of these compounds indicate that reductive dechlorination is occurring at the site at a rate that needed to be stimulated both abiotically and biotically with the use of organic hydrogen donors and ZVI.
Date implemented:
Winter 2008
Final remediation design:
In December 2008, Innovative Environmental Technologies Inc utilized 21 direct-push injection points to distribute 2,755 pounds of ZVI, 1,050 pounds of calcium propionate, 420 pounds of oxygen scavenger, 420 pounds of nutrients, vitamins B-2 and B-12, 3,050 pounds of HRC and 150 pounds of polymeric support into the subsurface from 10-15 feet bgs and 35-40 feet bgs.
Results to date:
In shallow MW-22(8/08 to 8/09) PCE concentrations have dropped from 26ppb to bdl while TCE dropped from 110ppb to 2.2ppb and cis 1,2 DCE has decreased from 37ppb to 24ppb.
Vinyl Chloride has increased from 11ppb to 18ppb.
In deep MW-23 (8/09 to 8/09) concentrations of sec and tert butylbenzene have increased from bdl. to 1 ppb. PCE has decreased from 110ppb to 38ppb. TCE has decreased from 150 ppb to 36ppb. Cis 1,2 DCE has decreased from 280 ppb to 220 ppb while Vinyl Chloride has decreased from 120ppb to 58ppb.
In shallow MW-19 from 8/08 to 8/09 concentrations of PCE have increased from 20ppb to 38ppb. TCE has increased from 23ppb to 82ppb. Cis 1,2 DCe has increased from 21ppb to 80ppb and Vinyl Chloride has decreased from 54ppb to 35ppb.
In deep MW-16 from 8/08 to 8/09 concentrations of PCE and TCE have decreased to bdl from 230ppb and 96ppb resepectively. Cis 1,2 DCE has increased from 71ppb to 130 ppb and Vinyl Chloride and trans 1,2 DCE have both decreased to bdl from concentrations of 39ppb and 11ppb respectively.
In shallow MW-21 from 8/08 to 8/09 PCE and TCE have remained bdl. Cis 1,2 DCe has increased from 3.8ppb to 10ppb and Vinyl Chloride has decreased from 15ppb to bdl.
In deep MW-24 from 8/08 to 8/09 PCE increased from 14ppb to 15ppb, TCE has decreased from 36 to 20 and Cis 1,2 DCE has decreased from 720ppb to 240ppb. Vinyl Chloride has decreased from 320ppb to 150ppb.
Total CVOC's on the site have decreased by an average of 52.4% as of 9/09.
Next Steps:
Next groundwater monitoring event- March 2010
Cost to Design and Implement:
Remediation-$309,813
|
Costs
Cost
for Assessment:
|
|
Investigation-$64,368
|
Cost
for Operation and Maintenance:
|
|
|
Total
Costs for Cleanup:
|
|
$374,181 |
Contacts
Nancy Boisvert
Program Manager
TDEC-DoR
Drycleaning Response Program
401 Church St.
Nashville, TN
Elizabeth Bishop
Innovative Environmental Technologies
6130 Kit Road, Pipersville, PA
www.iet-inc.net
888-721-8283
elizabethbishop@iet-inc.net
615-263-3876
|
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