Small Systems Water Treatment Plant Operator Program Manual

Community Works Management System
Technical Specifications
APPENDIX 2: LIQUID WASTE COLLECTION & DISTRIBUTION SYSTEM
Activity
Code:
Activity Description
Activity
Code:
Activity Description
o120 Sewage Collection Trucked o126 Sewage Pump/Lift Station
o121 Honey Bag Collection o127 Sewage Treatment
o122 Sewage Lagoons O&M o128 Sewage Sampling
o123 Honey Bag Cell O&M o129 Signage
o124 Sewage Mains o199 Sewage Other
x125 Manholes/Access Vaults
1. Facility: Sewage System
2. Crew Size:
2-System Operator &
Helper
3. Equipment:
Vacuum Truck, safety gear
4. Materials:
5. Activities to complete
Semi-Annual
7. Quality Standard:
6. Time to Complete each Activity
S/A 1.50 hrs
(Per manhole)
8. Work Method:
SA 1. Check if dangerous gases are present before entering manhole. Allow gases to
dissipate, or ventilate manhole prior to entering.
Do Not, under any circumstances, perform interior work on any access vault alone,
work on the interior of an access must be performed with a two man crew.
SA 2. If the access vault contains a sump pump, inspect the pump and control floats, and
operate the pump for a short period of time.
SA 3. Check manhole heating systems operation (where applicable).
SA 4. Check and service main valves.
SA 5. Check for obvious obstructions in the sewer main in the vicinity of the access vault by
removing the clean out cover.
SA 6. Check to see that sewer pipe clean out cap is closed and sealed tight.
SA 7. Check that access vault lock is in place and operational.
SA 8. Check that frost cover is intact.
SA 9. Inspect grading around manhole/access vault, and confirm that grading drains all
surface runoff away from the access vault.
SA 10. Check for groundwater or other infiltration into access vault from surcharging,
permafrost or water main cross connections. Infiltration into an access vault, or
debris that accumulates must be removed.