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Solid Waste Management Unit B-27
Chronology of Actions/Investigations
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Action |
Project |
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Unknown |
Unknown |
Site used as a sanitary landfill. |
CSSA |
NA |
|
1996 |
February |
Work Plan for B-27 investigation submitted. |
Parsons ES |
RL17 |
|
1996 |
March – April |
EM geophysical surveys performed on March 7, April 2 and 3. One large geophysical anomaly found potentially associated with waste management activities. |
Parsons ES |
RL17 |
|
1996 |
March - April |
Collected 3 surface soil samples (SS1-SS3) on March 8, analyzed for VOCs, SVOCs, and metals. Analytical results are currently in question due to ITS Laboratory practices. |
Parsons ES |
RL17 |
|
1996 |
August |
Completed 3 soil borings (SB1-SB3) on August 26 and sampled for VOCs, SVOCs and metals. Analytical results are currently in question due to ITS Laboratory practices. |
Parsons ES |
RL17 |
|
1997 |
May |
Redrilled 1 soil boring (SB2) on May 15. Analytical results are currently in question due to ITS Laboratory practices. |
Parsons ES |
RL17 |
|
1999 |
April |
EPA memorandum indicated analytical results obtained from ITS are not usable. |
EPA |
NA |
|
1999 |
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 analysis. |
Parsons ES |
Rework |
|
2002 |
July |
Final RCRA Facility Investigation Report submitted. |
Parsons |
RL17 |
|
2004 |
October |
A series of exploratory excavations were performed across the site in to help delineate the existing trench locations and composition. In addition to miscellaneous debris such as railroad ties, banding material, and 5-gallon empty cans, and various unexploded ordnance (UXO) were encountered. |
Parsons |
NA |
|
2011 |
February |
U.S. Geological Survey (USGS) performed a geophysical survey at SWMU B-27 to demonstrate the ALLTEM system. |
USGS |
NA |
|
June - July |
Approximately 9,150 cubic yards of soil and waste materials in eight trenches were excavated, inspected for UXO, and properly disposed of. Confirmation samples were collected from trench bottoms and sidewalls to confirm all waste had been removed. |
Parsons |
NA |
|
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September |
Release Investigation Report submitted to TCEQ. |
Parsons |
NA |
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December |
TCEQ |
NA |