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Solid Waste Management Unit B-25
Chronology of Actions/Investigations
|
Year |
Month |
Action/Results |
Action Performed By |
Project Number |
|
Unknown |
Unknown |
Area where a trench was observed in a 1966 aerial photograph. No other documentation regarding this area was found. |
CSSA |
NA |
|
1996 |
February |
Work Plan for B-25 investigation submitted. |
Parsons ES |
RL17 |
|
March |
EM geophysical survey performed on March 5; one geophysical anomaly found, potentially associated with waste management activities. |
Parsons ES ITS |
RL17 |
|
|
Collected 3 surface soil samples (SS1-3), analyzed for VOCs, SVOCs, and metals. Analytical results are currently in question due to ITS Laboratory practices. |
Parsons ES ITS |
RL17 |
||
|
September |
Completed 3 soil borings (SB1-3) on September 3, 4, and 5, and sampled for VOCs, SVOCs and metals. 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 |
Collected 3 surface soil samples (SS1-3) for Rework, analyzed for VOCs, SVOCs, and metals. Advanced 3 soil borings (SB1-3) for Rework and collected 7 soil/rock samples for VOCs, SVOCs and metals. |
Parsons ES APPL, Inc. O’Brien & Gere |
Rework |
|
2002 |
July |
Final RCRA Facility Investigation Report submitted. |
Parsons |
RL17 |
|
2003 |
December |
Final TO 0019 Work Plan Addendum submitted. |
Parsons |
TO19 |
|
2004 |
January - October |
Excavated approximately 200 cu. yds., no debris found. Closure samples collected. |
Parsons |
TO19 |
|
2005 |
April |
Final SWMU B-25 RCRA Facility Investigation Closure Report submitted. |
Parsons |
TO19 |
|
July |
TCEQ |
NA |