Sandy Bay First Nation New Water Treatment Plant

Infrastructure: The new WTP will require a new building within the community adjacent the arena,
community centre, and school. A new raw water intake and screen into Lake Manitoba will be required.
The new raw water supply line will be routed alongside an existing road to the new WTP. It is proposed
that the new intake line be placed in the vicinity of the existing intake which is proposed to be capped
(to be confirmed at detailed design) and will include a zebra mussel chemical control system and copper
fish screen (DFO compliant). Power will be provided through the existing electrical lines with new
electrical service provided at the WTP via existing 3-phase service available by the Arena located
adjacent to the project site. The existing distribution lines within the community will be incorporated in
the project with new connections including: connection of the WTP distribution line to existing,
connection to the school and connection to the new truckfill. A connection and line to the existing
sewage lagoon via a manhole will be added to discharge of WTP process wastewater. A new truckfill
station complete with a reservoir is also proposed.

Activities: Planning: SBOFN has conducted a feasibility study and design is currently underway. The
planning team includes community representation. Site Preparation: Existing infrastructure (current
WTP, school pumphouse, westend pumphouse) will be decommissioned and equipment removed from
these buildings. The building structures will likely stay in their current location(s) for repurposing or be
demolished, as agreed upon with the Nation. The new WTP will be installed in a currently undeveloped
plot of land, adjacent to the arena, located on the south side of Main Road within the community of
Sandy Bay. The site will be leveled through cut and fill. Gravel and/or another fill will be purchased and
delivered to site from an off-reserve source. Excavated material will be utilized to the extent possible.
Based on the Geotechnical Investigations conducted in March/April 2019, the need for blasting is not
anticipated as the testholes did not indicate bedrock presence. If required, it will be conducted by a
licenced contractor and utilize blast mats to mitigate flyrock. Construction – The contract for
construction will be tendered and a successful bidder will be chosen by SBOFN and the planning team.
Construction will occur in over a one-year period anticipated to start in Fall 2019. A Health and Safety
Plan will be developed to ensure that the active site does not become a hazard considering its central
location within the community. Operation – SBOFN will be responsible for the operation of the WTP
after commissioning is completed. The WTP is being designed to accommodate a projected population
of 8,001 people over the next 20 years. Decommissioning - Decommissioning is only planned for the
current WTP, school pumphouse, westend pumphouse. The new WTP is expected to be in operation for
at least 20 years.