During the levee repair work completed in October 2010, an unrecorded pipe was uncovered pipe was uncovered that runs parallel to the levee on the landside. As a result, potholing is proposed in December 2010, to accurately determine the horizontal and vertical location of the pipe. Once the location of the pipe is determined, it will be removed in the fall of 2011. Two of the potholes will be located upstream of the pipe and two will be located downstream of the pipe. Each pothole will be approximately four feet deep and will be excavated with a vacuum truck. The holes will be backfilled using the extract soil and compacted in lifts. Any excess material will be hauled off site. Disturbed areas will be returned to pre-existing conditions. Water will not be used in the operation. All work will be on the landside of the levee and will not impede bicycle traffic.