District employees inspect the entire collection system within six years. RUSA uses the Envirosight® Rovver CCTV equipment and the WINCAN program to document:
· the structural condition of the pipe
· root intrusion
· protruding taps
· evidence of inflow and infiltration (I/I) or surcharging
· manhole pave-overs, and
· other deficiencies that factor into condition assessment
Planned video inspections are generally scheduled to follow the planned cleaning schedule. However, in the event of a blockage, a video inspection assesses the cause of the blockage. After the blockage is removed the line is evaluated with a CCTV crawler to assess the condition of the pipe. RUSA uses the Envirosight® Rovver CCTV equipment for this assessment.
All newly constructed sewer lines are required to be CCTV inspected by the RUSA Collections Department to verify as-built drawings and ensure the line has no construction defects.