1.04 QUALITY ASSURANCE
A.
REQUIREMENTS
1.
Products used in the work of this section shall be produced by manufacturers
regularly engaged in the manufacture of cured-in-place liners for municipal
wastewater systems and with a history of successful production acceptable to
the owner.
The installing Contractor shall be licensed by the cured-in-place lining system
manufacturer and shall have successful experience in the installation of cured-
in-place lining systems in municipal wastewater systems. The Contractor
shall also be familiar with the specified requirements and the methods needed
for proper performance of the work of this section.
When requested by the owner, the Contractor shall submit evidence
acceptable to the owner, such as a certified copy of a license or agreement,
that it has the authority to use and/or install the liner product.
The finished liner shall be continuous over the entire length of the liner
insertion run between the manholes and shall be free from visual defects such
as foreign inclusions, dry spots, pinholes, and delamination.
Wrinkles in the finished liner pipe which cause a backwater of one inch or
more or reduce the hydraulic capacity of the pipe are unacceptable and shall
be removed or repaired by the Contractor. If a void between the wrinkle and
the pipe develops, the Contractor shall repair or replace that section of the
pipe. Methods of repair shall be proposed by the Contractor and submitted to
the owner for review.
Following sewer cleaning and prior to installation of liner and finish work at
the manholes, the sewer shall be televised and recorded on videotape or in
digital format acceptable to the Engineer such as CD or DVD, and shall be
provided to the Engineer. The Contractor shall also televise the sewer after
completion of all liner insertion and finish work at the manholes. All Closed-
Circuit Television (CCTV) work is to be completed per a national standard for
sewer inspections.
The Contractor installing the Sectional Lining system shall have completed at
least five (5) projects, in the United States, within the past three (3) years and
projects that included CIPP installation lengths of at least 300 continuous
linear feet, on-site wet-out or resin impregnation of the liner tube, and design
of a similarly sized Sectional Liner wall thickness based on a fully
deteriorated condition.
2019 CIPP Lining Project CIPP Lining of Existing Sewers (Ultraviolet)
Nashua, NH
0265 1-3
