Maximum allowable infiltration allowed under these development
standards shall be in accordance with the current requirements of
the Michigan Department of Environment, Great Lakes and Energy (EGLE).
The joints shall be tight, and visible leakage in the joints, or leakage
in excess of that specified above, shall be repaired at the contractor's
expense by means approved by the City Engineer.
Upon completion of construction and prior to acceptance of this
sewer system and again prior to expiration of the maintenance guarantee,
an internal inspection of the sanitary sewers shall be made through
the use of TV equipment. All services and appurtenances shall be cleaned
prior to testing. The TV inspections shall be done by the contractor
and witnessed by the City Engineer. All deficiencies noted during
the TV inspection shall be repaired by the contractor at his expense
by means approved by the City Engineer. A written report and a color,
VHS-format videotape of the inspection shall be supplied to the City
Engineer.
A mandrel shall be pulled through a minimum of 5% of all PVC
pipe to test for deflection. The City Engineer shall select the sections
to be tested. Deflection shall be limited to 5.0% of the base inside
diameter of the pipe. Failed test sections shall be uncovered and
the embedment and backfill properly recompacted prior to retesting.