Why the technology was selected:
Proven to be most effective remediation system as well as cost efficient.

Date implemented:
In March 2002, MW-2 and MW-3 were converted to ART remedial wells; a third ART well was added approximately 45 feet upgradient from MW-6.The ART Systems were started in May 2002.

Final remediation design:
Three ART Systems installed in 4" wells to depth of 120 ft. In March 2002, MW-2 and MW-3 were converted to ART remedial wells and a third ART well was added approximately 45 feet upgradient from MW-6

Other technologies used:
Different remedial alternatives were evaluated to select the most effective site remedy to comply with Statewide health standards. The ART In Well Technology was determined to be the most effective remedial measure to achieve site closure.

The ART technology combines in-situ air stripping, air sparging, soil vapor extraction, enhanced bioremediation/oxidation, and "Dynamic Subsurface Circulation" in an innovative wellhead system.

Results to date:
Concentrations were reduced to below the action limits by April 2003. Analytical testing of groundwater samples obtained from MW-6 in November 2004 revealed that PCE concentrations had reached below detection limits.

Next Steps:
Final letter from PDNR was issued in 2004. Site completely closed with wells, piping and remediation system removed in Oct. 2005

Cost to Design and Implement:
Approximately $100K

Why the technology was selected:
Proven to be most effective remediation system as well as cost efficient.

Date implemented:
In March 2002, MW-2 and MW-3 were converted to ART remedial wells; a third ART well was added approximately 45 feet upgradient from MW-6.The ART Systems were started in May 2002.

Final remediation design:
Three ART Systems installed in 4" wells to depth of 120 ft. In March 2002, MW-2 and MW-3 were converted to ART remedial wells and a third ART well was added approximately 45 feet upgradient from MW-6

Other technologies used:
Different remedial alternatives were evaluated to select the most effective site remedy to comply with Statewide health standards. The ART In Well Technology was determined to be the most effective remedial measure to achieve site closure.

The ART technology combines in-situ air stripping, air sparging, soil vapor extraction, enhanced bioremediation/oxidation, and "Dynamic Subsurface Circulation" in an innovative wellhead system.

Results to date:
Concentrations were reduced to below the action limits by April 2003. Analytical testing of groundwater samples obtained from MW-6 in November 2004 revealed that PCE concentrations had reached below detection limits.

Next Steps:
Final letter from PDNR was issued in 2004. Site completely closed with wells, piping and remediation system removed in Oct. 2005

Cost to Design and Implement:
Approximately $100K

Why the technology was selected:
Proven to be most effective remediation system as well as cost efficient.

Date implemented:
In March 2002, MW-2 and MW-3 were converted to ART remedial wells; a third ART well was added approximately 45 feet upgradient from MW-6.The ART Systems were started in May 2002.

Final remediation design:
Three ART Systems installed in 4" wells to depth of 120 ft. In March 2002, MW-2 and MW-3 were converted to ART remedial wells and a third ART well was added approximately 45 feet upgradient from MW-6

Other technologies used:
Different remedial alternatives were evaluated to select the most effective site remedy to comply with Statewide health standards. The ART In Well Technology was determined to be the most effective remedial measure to achieve site closure.

The ART technology combines in-situ air stripping, air sparging, soil vapor extraction, enhanced bioremediation/oxidation, and "Dynamic Subsurface Circulation" in an innovative wellhead system.

Results to date:
Concentrations were reduced to below the action limits by April 2003. Analytical testing of groundwater samples obtained from MW-6 in November 2004 revealed that PCE concentrations had reached below detection limits.

Next Steps:
Final letter from PDNR was issued in 2004. Site completely closed with wells, piping and remediation system removed in Oct. 2005

Cost to Design and Implement:
Approximately $100K