1. Qualifications of the firm/personnel who will perform the work;
2. Description of system proposed for handling existing flows during the various
procedures to be carried out;
3. Description of the system and equipment proposed for cleaning;
4. Description of the system and equipment proposed for root cutting; and
5. Description of the system and equipment proposed for televising the pipe after
cleaning.
PART2-PRODUCTS
2.01
A,
B.
EQUIPMENT:
DVD (Read only) video system shall be used which utilizes standard DVD recording discs.
The television camera used for the inspection shall be a pan and tilt closed circuit color
television camera specifically designed and constructed for such inspections. Lighting for
the camera shall be suitable to allow a clear picture for the entire periphery of the pipe.
The camera shall be operative in 100 percent humidity conditions. The camera, television
monitor and other components of the video system shall be capable of producing a
minimum 400 line resolution color video picture. Picture quality and definition shall be to the
satisfaction of the Engineer and, if unsatisfactory, equipment shall be removed and no
payment made for the unsatisfactory inspection.
PART 3-EXECUTION
3.01
A.
CLEANING:
The Contractor may elect to use either high velocity jet, or mechanically powered
equipment, as described in the NASSCO Standard Specifications. Selection of equipment
shall be based upon field conditions such as access to manholes, quantity of debris, size of
sewer, depth of flow, etc.
All sludge, dirt, sand, rocks, grease, and other solid or semisolid material resulting from the
cleaning operation shall be decanted and disposed of at the City landfill, and in a method
acceptable to the Engineer. Pipe cleaning shall be performed in advance of pipe television
inspection.
Acceptance by the Engineer of the cleaning results will be based on the results of television
inspection. If the results are unsatisfactory, the Contractor shall repeat the cleaning until
accepted by the Engineer at no additional cost to the Owner.
2019 CIPP Lining Project Cleaning, Root Cutting and Television Inspection of Pipelines
Nashua, NH 02441-2
