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Area of Concern 48
Chronology of Actions/Investigations
|
Year |
Month |
Action/Results |
Action Performed By |
Project Number |
|
Unknown |
Unknown |
Three north-south trending mounds and construction debris pile. Area is located north of SWMU B-15/16 in southwest area of East Pasture. |
CSSA |
NA |
|
1996 |
August |
Soil gas sampling at neighboring SWMU B-15/16 overlapped into the AOC 48 site boundary. Eight soil gas samples were collected within AOC 48. |
Parsons |
NA |
|
1999 |
July-August |
EM and GPR geophysical surveys completed at AOC 48. |
Parsons |
RL83 |
|
2000 |
June |
Three surface soil samples collected and analyzed for VOCs, SVOCs, explosives, and metals. |
Parsons |
RL83 |
|
2002 |
June |
Final RCRA Facility Investigation Report submitted. |
Parsons |
RL83 |
|
2003 |
December |
Final TO 0019 Work Plan Addendum submitted. |
Parsons |
TO19 |
|
2004 |
February & April |
Conducted field investigations to identify source of geophysical anomaly on site. Numerous test pit excavations revealed no evidence of waste, waste residue, or waste management activities. |
Parsons |
TO19 |
|
July |
AOC-48 Delisting Report submitted. |
Parsons |
TO19 |
|
|
November |
TCEQ |
NA |