[Home]
SWMU B-13
Chronology of Actions/Investigations
|
Year |
Month |
Action/Results |
Action |
Project |
|
Unknown |
Unknown |
Engineering trash dump area. |
CSSA |
NA |
|
1993 |
September |
Field survey indicated an area where miscellaneous solid waste was disposed of. This area has been covered and semi-compacted, but there are several areas where the cover has eroded, revealing the trash. |
Parsons ES |
Order 71 |
|
1996 |
February |
Work Plan for B-13 investigation submitted. |
Parsons ES |
RL17 |
|
March |
Geophysical survey performed on March 12. Five anomalies were found. Three are potentially associated with waste management activities, and two are associated with construction debris piles on bedrock. |
Parsons ES |
RL17 |
|
|
Site boundary surveyed on March 17. |
||||
|
April |
Additional geophysical survey performed to verify data. |
Parsons ES |
RL17 |
|
|
August |
Soil borings (SB1‑SB4) drilled and samples collected on August 27 and 28. Analytical results are currently in question due to ITS Laboratory practices. However, preliminary evaluation of the results indicates that copper, lead, mercury, and zinc concentrations exceed background levels in surface soil, and barium, cadmium, chromium, copper, lead, nickel, and zinc concentrations exceed background in limestone. Low levels of VOCs and SVOCs were also detected in several samples. |
Parsons ES |
RL17 |
|
|
1997 |
May |
Additional soil boring samples (SB1-SB2) collected on May 13 and 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 |
Rework |
|
2000 |
March |
Advanced four soil borings for rework and analyzed 12 samples for VOCs, SVOCs, and metals. |
Parsons, APPL & OBG |
Rework |
|
2002 |
June |
Final RCRA Facility Investigation Report submitted. |
Parsons |
RL17 |
|
2011 |
June |
X-Ray Fluorescence (XRF) data collected at 50 locations across the site. |
Parsons |
NA |
|
2012 |
September - November |
Approximately 7,480 cubic yards (CY) of debris and soil were excavated from the site; some of which contained non-friable transite asbestos and some that contained pieces of asphalt. Confirmation samples collected from the excavation bottom and sidewalls showed contamination exceeding Tier 1 PCLs was removed from the site. |
Parsons |
NA |
|
2013 |
April |
Release Investigation Report submitted to TCEQ. |
Parsons |
NA |
|
July |
TCEQ |
NA |