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Consulting Services Waste Water Lagoons

Consulting Services Waste Water Lagoons
  • Organization: City of Cranbrook
  • Location: Cranbrook, British Columbia, Canada
  • Deadline: April 29, 2020

For more information contact:

Penson, Curtis

City of Cranbrook
Public Works
201 Cobham Avenue
Cranbrook, British Columbia
V1C 4G4

Phone: 1 (250) 489 0237

Email: curtis.penson@cranbrook.ca

Summary Details:

A. De-Sludging of Lagoon Cells 1, 2 & 3
The City is retaining a consulting firm for the Design and Contract Administration & Field
Inspection Services for the removal of sludge from Lagoon Cells 1, 2 & 3. The volume of
sludge is currently unknown. The last sludge removal occurred in 2011, at which time,
3,000 dry tonnes (10,345 wet tonnes) was removed. De-sludging will require the
performance of a sludge survey, removal, dewatering, transportation, and unloading of the
solid to a City storage location

B. Lagoon Cell Diversion Piping
The City is retaining a consulting firm for the Design and Contract Administration & Field
Inspection Services for the lagoon cell diversion piping.
The City’s current cell piping is not functioning properly, and it is recommended that new
piping be installed to function as a diversion between and around the lagoon cells. The new
piping configuration will be required to enable the City to bypass and isolate individual
cells, allowing operations to continue uninterrupted while completing preventative
maintenance and repairs. The new piping will also improve the flow of the wastewater
within the cells.
In addition to the cell diversion piping, the outfall from the mobile home park, which
currently enters the Lagoons at Cell 2, will need to be realigned to enter the Lagoons above
the screener

C. Lagoon Regrading & Dyke Upgrade (Slope Regrading; Increasing the Lagoon Freeboard;
Armoring)
The City is retaining a consulting firm for the Design and Contract Administration & Field
Inspection Services for the Lagoon Regrading and Dyke Upgrades. This will include regrading
the cell bottoms (if required after sludge removal); regrading the dyke slopes between the
lagoon cells; increasing the freeboard of the dykes to 1.0m; and regrading and armoring the
dyke along Joseph Creek

 

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