| A | All well contractor activities, including: - Operation of air or mud rotary drill rig
- Well rock coring
- Sonic drilling
- Geothermal loop installation
- + All Level B, C and D activities
Required for geothermal well and related loop installations. | 18 months |
|---|
| B | Most well contractor activities, including: - Operation of a cable tool rig
- Hollow stem auger (non-air rotary)
- Direct Push
- Hydrofracturing
- Jetting-in a well
- + All Level C and D activities
Does not include: - Wet rock coring
- Air rotary
- Mud rotary
- Sonic drilling
| 12 months |
|---|
| C | Includes: - Grouting
- Well abandonment
- Rehabilitating a well due to biofouling
- Well development (ex. pumping or surging)
- Packer and liner installations
- Extend casing above land surface
- Break well seal
- + All Level D activities
| Six months |
|---|
| D | Includes: - Breaking well seal to perform activities such as:
- Pump repair
- Well chlorination
- Using a down-hole camera in a well
- Pump installation and installation of other equipment in a well
- Disinfection
| Six months |
|---|
