Rosewall Creek Research Hatchery - Hatchery Retrofit - Ground Water Supply Expansion

As part of the PSSI and associated SEP initiatives, the Rosewall Creek Research Hatchery (Rosewall Hatchery) was selected to receive funding to expand the aquaculture capacity on-site in order to meet specific conservation enhancement targets for salmonid populations.  To facilitate the required program expansion, the water supply and distribution infrastructure at the hatchery is being modernized to ensure adequate rearing capacity and overall system redundancy. Due to aging infrastructure and natural lithological groundwater properties, the flow rates have significantly decreased. The lower flows are hindering daily operations and the resilience of the hatchery.

This project will involve the installation of underground piping from 2 existing groundwater production wells. The production wells will have an associated in ground vault containing all pump infrastructure and will be connected to an above ground electrical/control kiosk. The control infrastructure will direct and control the flow water through the underground piping to the aeration tower, and subsequently to other rearing and incubation infrastructure.


The proposed construction will involve the installation of:  

o    Excavation and Trenching: Excavate a single trench along the existing access route for the watermain pipes. This will include a subgrade preparation of 1800 m2 of trenching works. The trench will be AWWA C-605 Type 5 utility trench. This trench has a width of 3.5m, depth of an average 1.5m to bottom of pipe, and the slope as per design specifications and local regulations. The trench will be properly shore and brace to prevent collapse during excavation. 
o    Watermain Supply Lines:  Installation of two (2) 150mm diameter HDPE line from each production well (Well 21-6 and well 97-1) to the aeration tower that is part of the hatchery facility. The route supply lines run parallel to the existing access roadway in the AWWA C-605 Type 5 utility trench. The total length of both utility lines compined is 1202m, one of 517m and the other of 685m.  the watermain lines are  stripped utility corridor. 
o    System Valves & Appurtenances. Each pump riser pipe is equipped with a Flomatic 80DIVFD check valve on the discharge end of the pump and connects to the surface with a Monitor high-efficiency pit less spool unit. The valve chambers shall be equipped with the following components: 1. Ø25mm Pratt WAR10-116-175-FS air release valve, with Ø25mm isolation ball valve 2. Cla-Val X43H strainer with standard mesh 3. Cla-Val Series 587 check valve 4. Ø25mm sampling port with isolation ball valve 5. Seimens Sitrans FM MAG 3100 flow meter 6. Romac DJ400 dismantling joint
o    Electrical Supply Requirements. The minimum required power to service two (2) new well pump kiosks is 200kW at 600Vac. The minimum power requirements for the two (2) new well pump kiosks are as follows: 
o    200kW minimum power total at 600Vac 
o    Two (2) circuit breakers to feed new stations: 
?    100A trip and 125A frame Circuit Breaker 
?    100A trip and 125A frame Circuit Breaker 
?    60A trip and 125A frame Circuit Breaker 
From the main power source, three (3) x 78mm underground RPVC and one (1) x 103mm underground RPVC will be routed from the aeration tower to Well 21-6 and then to well 97-1.  An additional 78mm underground RPVC will be installed as a spare for future expansion of the sites. Each kiosk will include the following power equipment:
o    Main Incoming Circuit Breaker 
o    Splitter 
o    Disconnect Switches 
o    15kVA 600V to 120/240V Transformer 
o    120/240V 60A Distribution Panel 
o    Ground system Run (4) conduits.
o    Road Work and Culvert: The installation of 2 culverts (6000mm DIA) with minimum cover of 300mm, with a total length of 60m.  The road design respects the following reference Codes and Standards: 1. Forest Road Engineering Guidebook 2. Engineering Manual – BC MFLNRO 3. BC Supplement to TAC Geometric Design Guide 4. TAC Geometric Design Guide for Canadian Roads 5. TAC Materials and Testing.  The road includes a subgrade preparation of 1755 m2 for roadworks, Minimum Top Surface Width 3.5 m- 4.0m, a minimal 1 lane, Stabilized Subgrade Width of 5.5-6.5m, 10% maximal grade, and a design speed of 30km/h.  
o    Control Requirement: The local control panel will be installed in each PW 21-6, PW 22-7, and PW 97-1 kiosks. The control panel will host the equipment required to monitor and control the pump. All required system parameters information from Remote I/O will be connected to the main Programmable Logic Controller (PLC) to control the three (3) new well pumps as per the client's requirement. The communication from the new wells to the main PLC in the office building will be done via Fibre Optic. A single-mode fiber optic cable will travel through an underground 129mm RPVC conduit to the kiosk closest to the office building (PW 21-6), and farther kiosks (PW 22-7 and PW 97-1) will be daisy-chained to the PW 21-6 kiosk. That kiosk will house a media converter switch that will connect the VFD and control panel to the site control system. The following equipment will be included in each kiosk: 
o     Local Control Panel (NEMA 12) 
o     Remote I/O 
o    Ethernet Switch with Fibre Optic ports 
o    24VDC Power Supply 
o    120Vac Uninterruptible Power Supply (UPS) 
o    Other required control parts
o    Variable Frequency Drive (VFD) 
o    Kiosk Lighting 
o    Kiosk Heater

Tree and vegetation removal activities will be carried out outside the regional bird nesting window. Mitigation will be applied to ensure proper environmental management are adhered too.  

The proposed watermains are to be located within the Rosewall Creek Hatchery property and routed to limit conflicts with existing infrastructure and negative environmental footprint. The design considered a multitude of environmental and archeological factors to minimize the disturbance to both important design constraints.

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Latest update

March 15, 2024 – DFO has issued its Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.

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Contacts

Philippe Ouellet
Fisheries and Oceans Canada, Pacific Region
Philippe Ouellet, Project Engineer
200 - 401 Burrard Street
Vancouver, British Columbia V6C 3S4
Telephone: 343-575-5985
Email: Philippe.ouellet@dfo-mpo.gc.ca


  • Location

    • Rosewall Creek Hatchery (British Columbia)

  • Nature of Activity

    • Building and Property Development
    • Other, not otherwise specified

  • Assessment Status

    Completed

  • Start Date

    2023-12-22

  • Proponent

    Fisheries and Oceans Canada - Real Property, Safety and Security

  • Authorities

    • Fisheries and Oceans Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    87187
Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

 

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...within 200 kilometres
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