| 1. | Drive trucks to transport crews, materials, and equipment. |
| 2. | Communicate with supervisors and other workers, using equipment such as wireless phones, pagers, or radio telephones. |
| 3. | Prepare and keep records of actions taken, including maintenance and repair work. |
| 4. | Operate sewer cleaning equipment, including power rodders, high velocity water jets, sewer flushers, bucket machines, wayne balls, and vac-alls. |
| 5. | Ensure that repaired sewer line joints are tightly sealed before backfilling begins. |
| 6. | Withdraw cables from pipes and examine them for evidence of mud, roots, grease, and other deposits indicating broken or clogged sewer lines. |
| 7. | Install rotary knives on flexible cables mounted on machine reels, according to the diameters of pipes to be cleaned. |
| 8. | Measure excavation sites, using plumbers' snakes, tapelines, or lengths of cutting heads within sewers, and mark areas for digging. |
| 9. | Locate problems, using specially designed equipment, and mark where digging must occur to reach damaged tanks or pipes. |
| 10. | Clean and repair septic tanks, sewer lines, or related structures such as manholes, culverts, and catch basins. |
| 11. | Start machines to feed revolving cables or rods into openings, stopping machines and changing knives to conform to pipe sizes. |
| 12. | Service, adjust, and make minor repairs to equipment, machines, and attachments. |
| 13. | Inspect manholes to locate sewer line stoppages. |
| 14. | Cut damaged sections of pipe with cutters, remove broken sections from ditches, and replace pipe sections, using pipe sleeves. |
| 15. | Dig out sewer lines manually, using shovels. |
| 16. | Break asphalt and other pavement so that pipes can be accessed, using airhammers, picks, and shovels. |
| 17. | Cover repaired pipes with dirt, and pack backfilled excavations, using air and gasoline tampers. |
| 18. | Requisition or order tools and equipment. |
| 19. | Rotate cleaning rods manually, using turning pins. |
| 20. | Clean and disinfect domestic basements and other areas flooded by sewer stoppages. |
| 21. | Tap mainline sewers to install sewer saddles. |
| 22. | Update sewer maps and manhole charts. |