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KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

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APPENDIX B<br />

A hand-sketched map of the trench showing the stained soils and soil layers should be<br />

included in the field log book. If contaminated soils and debris are located in the test pits (as<br />

proof of previous trenching), the area will be marked for future surveying purposes as<br />

required by the project-specific addenda.<br />

After completion of the trench, the test trenches will be backfilled. Trenches, which have not<br />

been completed at the end of the day, may remain open if appropriate markings and<br />

barricades are placed fully enclosing the trench. Marking and barricades shall be in<br />

accordance with the BWHSP (Appendix F of the BWP) and the SSHP. If a trench has not<br />

been completed and is backfilled at the end of a day, it may be restarted the next day from<br />

the point at which excavation ceased. The soils from the deeper portion of the trench will be<br />

returned to the trench first. The segregated upper soil will be added to the trench last.<br />

Disposition of contaminated backfill should be consistent with the project-specific addenda<br />

to the WMP (Appendix E of the BWP).<br />

Revegetation will be performed as required.<br />

If a buried drum is encountered, work will immediately cease. The team leader will contact<br />

the Restoration Section, who will respond to the area and determine if activities may<br />

continue. In the event that buried drums or other containers are expected to be encountered<br />

or are discovered during the pit excavating activities, test pit sampling will be performed<br />

using the following procedures:<br />

Wear appropriate health and safety equipment as required in the BWHSP (Appendix F of the<br />

BWP) and the SSHP.<br />

Identification of the depth to the top of the buried drums and the perimeter of the buried<br />

drum area will be attempted from a geophysical survey as described in SOP B1.7. The<br />

perimeters will be adequately marked off using flagging tape.<br />

A backhoe will be used to remove the excess soil from above the buried drums. An area of<br />

soil adjacent to the perimeter of the buried drums will also be excavated. Care will be taken<br />

not to penetrate the drums with the backhoe.<br />

Continuous monitoring will be conducted using real-time air monitoring equipment as<br />

required in the BWHSP (Appendix F of the BWP) and the SSHP.<br />

If required, drums in such deteriorated condition that a potential for release is evident will be<br />

packaged in an over-packed drum.<br />

If required, drums will be sampled following the procedures outlined in SOP B6.1.<br />

Low hazard and known content drums may be moved with hand trucks or cradles.<br />

Mechanical drum handling equipment usually consists of a backhoe or front-end loader<br />

equipped with a drum grappler. Drums shall be transported utilizing front-end loaders or<br />

forklifts with drum grapplers, or with modified carrying platforms to preclude spark<br />

generation. Following the removal of the drums from the excavation, soil samples should be<br />

collected following the procedures outlined previously.<br />

Kirtland AFB<br />

SOPs for Field Investigations B-94 April 2004

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