C - Hanford Site

RL--WIIC-NREACTOR-1991-1030 WfC-SD-EN-TI-136, Rev. 0 Final Report
UNOFFICIAL COPY (Incomplete)
OCCURRENCE REPORT
5) Conclude document closure and notify Washington State
Ecology department of closure.
ACTIONEE: D.J. Watson (11120)
TARGET COMPLETION DATE: 12/12/93 COMPLETION DATE: -I--
26. IMPACT ON ENVIRONMENT, SAFETY AND HEALTH
Potential for environmental degradation.
27. PROGRAMMATIC IMPACT
None.
28. IMPACT UPON CODES AND STANDARDS
None.
29. FINAL EVALUATION AND LESSONS LEARNED
The purpose of removing underground storage tanks having
contained petroleum products in accordance with 40 CFR
280.71 is to remove inactive and/or leaking tanks from
service and from the ground. The regulations also require
the clean up of spills associated with the tanks. This is
the fourth of twenty-seven tanks removed to date where soil
contamination has been found.
TANK IOON-SS-27
The excavation and removal of tank 100N-SS-27 was completed
on Dec. 18, 1990. Approximately 25 feet of associated piping
was removed from the ground along with the tank. An
inspection of the tank did not reveal any holes or cracks.
Field sampling conducted following the removal of the tank
indicated the presence of organics between it and the
adjacent tank, 100N-SS-28. On January 11, 1991 additional
soil was removed from between the tanks and found to be
contaminated.
TANK 100N-SS-28
To further characterize and facilitate closure of the lOON-
1993/02/02 page 5
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