Agenda Item 9AAGENDA ITEM # 9A
APRIL 11, 2011
April 1, 2011
MEMORANDUM
TO: The Honorable Mayor
and Members of the Commission
FROM: Jim Hanson
7_ ger
SUBJECT: er's Report
Sewer Line Repairs In connection with the budgeted sewer lining in the Selva Marina area, several
emergency repairs have been needed. Several of these are normal and that pop up during most relining
projects like the reconstruction of several manholes. Another is needed when a "hammer tap" is found
which was created by someone breaking into the clay line with a hammer and then inserting a tap line into
it, thus leaving not only opportunities for sewage to leak out and rain water to seep in, but also to trap
materials in the sewer main.
The most serious of the repairs needed in the Selva Marina project deal with a poorly installed joint from
the 1950s. It was located close to the Selva Marina lift station. The joint in question is fairly deep (12
feet) and located under a telephone duct bank and adjacent to the lift station wet well. Consequently, the
repairs need shoring and a trench box to make it safe for workers to get to the pipe. The cost of this repair
is estimated at $22,400 at the time of this report. The total of the repairs will be in excess of $30,000.
This is within the funds budgeted, but because of the number of these encountered in this one project, I
thought it appropriate to report them to the City Commission.