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Solid Waste Management Unit B-32
Chronology of Actions/Investigations
|
Year |
Month |
Action/Results |
Action |
Project |
|
Unknown |
Unknown |
Sand and projectiles from the Building 90 test range used as pipe bedding. SWMU consists of bedding material only. |
CSSA |
NA |
|
1996 |
February |
Work Plan for B-32 investigation submitted. |
Parsons ES |
RL17 |
|
1996 |
March |
EM geophysical survey performed on March 8. Two anomalies found both corresponding to non-waste management activities. |
Parsons ES |
RL17 |
|
1996 |
March |
Collected three surface soil samples (SS1-SS3) on March 11 and analyzed for explosives and metals. Analytical results currently in question due to ITS Laboratory practices. |
Parsons ES |
RL17 |
|
1996 |
August |
Completed three soil borings (SB1-SB3) on August 23 and 26 at the site. Results are currently in question due to ITS Laboratory practices. |
Parsons ES |
RL17 |
|
1997 |
June |
Sand and shot excavation activities commenced. The pipe was diverted, and shot and lead-contaminated sand was excavated and stockpiled. |
Parsons ES |
RL33 |
|
1997 |
July |
Lead and shot investigation activities completed. Approximately 36 cubic yards of soils were excavated. Four confirmatory soil samples were collected from the trench bottom. Results are currently in question due to ITS Laboratory practices. The trench has been backfilled with clean sand. |
Parsons ES |
RL33 |
|
1999 |
April |
EPA memorandum indicated analytical results obtained from ITS are not usable for closure or compliance. |
EPA |
NA |
|
1999 |
June |
Approximately 36 cubic yards of soil were successfully treated by solidification with Portland cement to non-hazardous Class 2 levels. Treated soils were transported and disposed of in accordance with applicable regulations. |
Parsons ES |
RL33 |
|
1999 |
November |
Submitted work plan for resampling to replace analytical chemistry data generated by ITS Laboratory. |
Parsons ES |
NA |
|
2000 |
March |
Advanced 3 soil borings (SB1-3) for Rework and collected 6 soil/rock samples for metals and explosives analysis. |
Parsons ES |
Rework |
|
2002 |
August |
Final RCRA Facility Investigation Report submitted. |
Parsons |
RL17 |
|
2003 |
January |
TCEQ |
NA |