State Coalition for Remediation of Drycleaners Site Profiles
ABC One-Hour Cleaners, Jacksonville, North Carolina
Description
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| The ABC facility is located at 2127 Lejune Boulevard in Jacksonville, North Carolina. The facility encompasses an area of approximately one acre. The dry cleaning establishment, consisting of three buildings joined to form one complex, is located on the southern portion of the property. Two source areas were identified. The primary source area was the former septic tank system. A secondary source consisted of still bottoms which were placed in the dirt driveway west of the building as a "pothole" fill. It is estimated that approximately one ton of still bottoms were placed on the driveway over a 30-year period. |
Contaminants
Contaminants present and the highest amount
detected in both soil and groundwater.
| Contaminant | Media | Concentration (ppb) | Nondetect |
|---|---|---|---|
| Tetrachloroethene (PCE) | groundwater | 5,400 ppb | |
| Tetrachloroethene (PCE) | soil | 2,100,000 ppb | |
| Trichloroethene (TCE) | groundwater | 640 ppb | |
| Trichloroethene (TCE) | soil | 33,000 ppb | |
| Vinyl Chloride | groundwater | 110 ppb | |
| Vinyl Chloride | soil | 31,000 ppb | ND |
| 1,2-Dichloroethene | groundwater | 1,200 ppb | |
| 1,2-Dichloroethene | soil | 31,000 ppb | ND |
Site Hydrology
| Deepest Significant Groundwater Contamination: | 90ft bgs | |
| Plume Size: | Plume Length: 1,500ft Plume Width: 400ft Plume Thickness: 90ft |
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| Average Depth to Groundwater: | 15ft |
Lithology and Subsurface Geology
| interbedded sands, silts, and clay Depth: 0-25ft bgs 25ft thick Conductivity: 10.3ft/day Gradient: 0.007ft/ft |
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| Saturated quartz sand Depth: 25-70ft bgs 45ft thick |
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Castle Hayne aquifer |
saturated fossiliferous sands and gravels with variable silt content Depth: 70ft bgs |
Pathways and DNAPL Presence
 Groundwater SedimentsSoilDNAPL Present |
Remediation Scenario
Cleanup
Goals: |
Contaminated soils are being addressed using a SVE system. Groundwater is treated using an extraction system (pumping well). The extracted groundwater is treated by air stripping. Periodic groundwater monitoring is conducted to estimate treatment efficiancy. Institutional controls have been implemented on well construction and water use in the the general area of the site. |
Technologies
In Situ Soil Vapor Extraction |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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Ex Situ Air Stripping |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
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Ex Situ Pump and Treat |
Why the technology was selected: Date implemented: Final remediation design: Results to date: Next Steps: Cost to Design and Implement: |
Costs
Cost
for Assessment: |
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Cost
for Operation and Maintenance: |
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Total
Costs for Cleanup: |
Lessons Learned
| 1. After more than a decade of soil and groundwater remediation, neither the soil nor the groundwater remediation goals have been attained. Soil excavation may have been a more expensive alternative than SVE; however, source removal would have been accomplished. The removal of the dominant source may have allowed the pump and treat system a better chance at remediation. |
Contacts
| Nile P. Testerman, P.E. North Carolina Department of Environment and Natural Resources 401 Oberlin Road, Suite 150 Raleigh, North Carolina 27699-1646 (919) 733-2801 extension 350 Nile.testerman@ncmail.net |
