At a Glance
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4
Acres
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$80K
Saved
- Location
- Coarsegold, California
- Offices
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- Location
- Coarsegold, California
- Offices
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Soil Vapor Extraction and Air Sparge System
With petroleum hydrocarbons leaking into soil and groundwater at the Coarsegold Maintenance Station, Caltrans needed a partner who could quickly assess the situation and remove the danger.
Underground storage tanks at the four acre site were leaking a number of contaminants, including gasoline and diesel, benzene, toluene, ethylbenzene, xylenes, and fuel oxygenates such as MTBE. To address the problem we constructed, installed, and operated a Soil Vapor Extraction (SVE) / Air-Sparging (AS) system.
We connected the SVE/AS system to granulated activated carbon filters to treat the extracted soil vapors and sampled the groundwater monitoring wells and the onsite domestic well, along with maintaining and operating the SVE/AS remediation system. After operating and monitoring the system from 2004 to 2010 and preventing the petroleum hydrocarbon plume from extending offsite, Â鶹´«Ã½ was able to prevent site closure from the Regional Water Quality Control Board in accordance with requirements of California¡¯s Health and Safety Code.?
We also saved Caltrans approximately $80,000 by operating the remediation system for an additional year on the existing funds in our contract.
At a Glance
-
4
Acres
-
$80K
Saved
- Location
- Coarsegold, California
- Offices
-
- Location
- Coarsegold, California
- Offices
Share
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