Voluntary Cleanup Status

Cherokee has been participating in the CDPHE’s Voluntary Clean Up Program (VCUP) and have divided the site into nine different parcels

                                         
VCUP 1 – Vanderbilt Lake

• Completed remedial actions
• Received the approved no further action determination from CDPHE on 8/3/05

VCUP 2 – Separated into A and B

• No remedial activities planned on 2A as there is little contamination
• Received the approved no further action determination from CDPHE on 9/15/05
• Investigations on 2B including soil sampling and groundwater wells began in the fall of 2005

VCUP 3

• VCUP application submitted at the end of August 2005
• Do have total petroleum hydrocarbons and chlorinated solvents in the area – there were storage tanks on this parcel
• Completed additional soil characterization in July 2005
• Will demolish building 26, excavate impacted soils and do enhanced bioremediation for groundwater impacts 
  

VCUP 4

• VCUP application submitted at the end of September 2005 and approved 11/15/05
• Found benzene in the soil with minor impacts to groundwater – there was a gas station on this parcel
• Remediation has started and will use enhanced bioremediation to cleanup

VCUP 5

• Completed excavation of impacted soils
• Completed post remediation monitoring – all TCE at property boundary is below the MDL except for two wells
• Another round of groundwater monitoring done in Sept. 2005
• Did install wells next to the CML since that is the direction the water is flowing and most were non-detect for TCE
• Submitted a no further action determination in April 2006 – awaiting approval

VCUP 6

• No activities completed or planned
• No know source areas on parcel

VCUP 7

• Installed 2 groundwater monitoring wells
• VCUP will be tied to building demolition – as can’t get to source area as it’s under the building
• Tested the other side of Broadway and had non-detects; Gates did not find anything on their property in this area