[Home]
Solid Waste Management Unit B-12
Chronology of Actions/Investigations
|
Year |
Month |
Action/Results |
Action Performed By |
Project Number |
|
Unknown |
Unknown |
Site served as a landfill area for large pieces of scrap metal and weapons. |
CSSA |
NA |
|
1995 |
May |
Geophysical survey performed on May 5. No anomalies detected. |
Parsons ES |
RL17 |
|
1996 |
February |
Work Plan for B-12 investigation submitted. |
Parsons ES |
RL17 |
|
August - September |
Soil borings (SB1-SB4) drilled and samples collected on August 30 and September 3. Analytical results are currently in question due to ITS Laboratory practices. |
Parsons ES CoreTerra ITS |
RL17 |
|
|
1999 |
April |
EPA memorandum indicated analytical results obtained from ITS are not usable. |
EPA |
NA |
|
November |
Submitted work plan for resampling to replace analytical chemistry data generated by ITS Laboratory. |
Parsons ES |
NA |
|
|
2000 |
March |
Advanced four soil borings (SB1-4) for Rework and collected 12 samples for VOCs, SVOCs, metals and explosive analysis. |
Parsons ES APPL, Inc. O’Brien & Gere Data Chem |
Rework |
|
2002 |
July |
Final SWMU B-12 RCRA Facility Investigation Report submitted. |
Parsons |
RL17 |
|
2003 |
December |
Final TO 0019 Work Plan Addendum submitted. |
Parsons |
TO19 |
|
2004 |
February - June |
Began site excavation. Removed approximately 2,500 cu. yds. Contents found were mostly metal debris, large concrete rocks, and construction debris. Collected waste characterization samples on all stockpiles. Excavated soil stockpile that came back hazardous was mixed with phosphate. Confirmation samples collected two weeks after mixing with phosphate. Site backfilled and berms knocked down to fill in low areas. |
Parsons |
TO19 |
| 2005 | April |
Final SWMU B-12 RCRA Facility Investigation Closure Report submitted. |
Parsons | TO19 |
| July |
TCEQ |
NA |