1. Inspect existing sewers for operation and maintenance problems.
2. Inspect new sewers and replacement sewers for installation as planned by examining line and grade, joint and junction adequacy, and proper installation of manholes and appurtenances.
3. Test for leaks in joints, taps, sewers, and manholes of existing facilities.
4. Find illegal, unauthorized, or improper connections.
5. Locate and determine the seriousness of inflow, infiltration, exfiltration, and diversion flow problems.
6. Identify and evaluate damage due to corrosion, cracking, crushing, subsidence (soil settling), root intrusion, stoppages, washouts, and improper connections.
7. Provide meaningful reports to supervisors so they can assign priorities in order to develop cost-effective maintenance or corrective action programs.
8. Effectively use the inspecting and testing tools and procedures described in this chapter, including closed-circuit television and electro scanning inspection, and smoke and dye testing.