Iona Island Wastewater Treatment Plant Stakeholder meeting (Birds - - PowerPoint PPT Presentation

Iona Island Wastewater Treatment Plant Stakeholder meeting (Birds & lagoons) Thursday, April 4, 2019 Metro Vancouver 4730 Kingsway, Burnaby BC

PROJECT MANAGER, POLICY, PLANNING & ANALYSIS

Martin Clarke

April 4, 2019

Iona Island Wastewater Treatment Plant

PROJECT DEFINITION PHASE

1

Iona Island Secondary WWTP Regulatory Drivers

• Metro Vancouver’s Integrated Liquid

Waste and Resource Management Plan

• Government of Canada’s Wastewater

Systems Effluent Regulations

3

Metro Vancouver Wastewater Treatment Plants

4

Vancouver Sewerage Area

Vancouver, Burnaby, Richmond, UBC, UEL, Squamish Nation & Musqueam Indian Band

N

Iona Island WWTP

Iona Island WWTP

Project Phases & Timeline

2020

Iona Island Secondary WWTP

Project Goals

Secondary Wastewater Treatment Resource Recovery Community and Park Integration

The Project Definition Phase Deliverable

A report that will:

• Provide a conceptual design
• Provide a project schedule for detailed design and

construction

• Provide a detailed design and construction cost-

estimate

• Recommend procurement method(s)

9

Integrative Design Process

10

Integrative Design Process (IDP)

Iona Lagoon Decommissioning

Dave Keeney

PROJECT ENGINEER

Houston Marsh

RESIDUALS MANAGEMENT OPERATIONS

Iona Lagoon Stakeholder Meeting April 4, 2019

2

Lagoon Cleaning

Lagoons Drying Beds

3

Excavate biosolids from lagoon

4

Transport biosolids from lagoon to drying beds

Lagoons Drying Beds

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Timeline - Lagoon cleaning

2019 to 2021 2022 to 2023 Until 2023 Offsite

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Lagoon Dredging/Dewatering

Lagoons Centrifuges Offsite

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Lagoon Dredging

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2019 to 2020 2021 to 2022

Timeline - Lagoon dewatering

Offsite

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Overall Timeline

Period Activity Access Restrictions Lagoon Status Full Empty Summer 2019 SW Lagoon Cleaning Intermittent closure of lagoon area NE, NW, SE SW Winter 2019-2020 NE Lagoon Dredging None NE, NW, SE SW Summer 2020 SW Lagoon Cleaning NE Lagoon Dredging Intermittent closure of lagoon area NE, NW, SE SW Summer 2021 SW Lagoon Cleaning NW Lagoon Dredging Intermittent closure of lagoon area NW, SE SW, NE Summer 2022 SE Lagoon Cleaning NW Lagoon Dredging Partial closure of lagoon area NW SW, SE, NE Summer 2023 SE Lagoon Cleaning NW Lagoon Dredging Partial closure of lagoon area None SW, SE, NE, NW

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Questions?

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Land dry the biosolids

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Land dry the biosolids

13

Land dry the biosolids

15

Remove dried biosolids

Iona Island WWTP

Ecological Systems and Opportunities

April 2019

Nick Page | Raincoast Applied Ecology

Projec ect p plan anning: how do we incorporate ecological values and issues?

1. Identifying regulatory issues: Fisheries Act, Species at Risk Act, Wildlife Act, Migratory Bird Convention Act, Water Sustainability Act. 2. Identifying important habitats or values that may not be specifically addressed by regulation: rare ecological communities, freshwater wetlands, etc. 3. Identifying opportunities for creating or enhancing ecological values: from restoring ecological processes/systems to small- scale habitat improvements. 4. Identifying information gaps: Western painted turtle? High water line? Barn swallows nesting? 5. Listening to the community: sources of information, concerns, ideas.

Iona I a Islan and: summary of ecological values

1. Iona Island is at the intersection of freshwater, marine, and terrestrial ecosystems: intertidal marshes, mudflats, freshwater ponds, and coastal sand ecosystems. 2. River management and industrial use has disrupted ecological processes but also created unique / novel ecosystems. 3. Iona Island provides important habitat for migratory birds (freshwater & marine wetlands, shrub thickets, grasslands, forest). 4. Iona Island provides unique opportunities for to restore habitat connectivity and ecological processes in the Fraser Estuary. 5. Access to nature (birding) and recreation are also important cultural values at Iona Island.

Historical vegetation (1860s) of the Iona Island area (from North et al., 1977). The light green colour (“g”) was indicated in the legend as ‘prairie: grasses’.

Iona Island is a novel and highly modified landscape created by river dredging and industrial activities

1952 Image

WWTP

Metro Vancouver’s Sensitive Ecosystem Inventory (SEI)

Interpreted ecological value (relative) of the Sensitive Ecosystems in Iona Beach Regional Park. All coloured areas are Sensitive Ecosystems; darker colours represent ecosystems of higher ecological value or sensitivity (map provided by Metro Vancouver Parks).

Iona Island is surrounded by critical intertidal habitats: marshes, mudflats, and tidal channels

McDonald Slough

WWTP

Musqueam Marsh North Arm Jetty

(interpreted)

LiDAR-based topographic mapping (0.5 m contours)

Mapping high water line and fish habitat along the north edge of McDonald Slough

Coastal sand ecosystems are provincially rare and support species and ecological communities at risk Coastal sand ecosystems are provincially rare and support species and ecological communities at risk

Habitat restoration by Metro Vancouver Parks has substantially increased sparsely-vegetated coastal sand ecosystem habitats

Freshwater wetlands and sludge lagoons are important habitat for waterfowl, shorebirds, and other birds in the Fraser estuary

Sludge Lagoons

Sludge lagoons provide valuable habitat for waterfowl, waders, and other bird species

WildResearch’s Iona Island Bird Obervatory is a critical part of bird research and the birding community at Iona

Iona Island is a regional hot spot for birding and brings local and international visitors to the park

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Creating or enhancing coastal sand ecosystems Increasing freshwater inflows to “Iona Bay” / interjetty area Restoring habitat connectivity and ecosytem processes Replenishing sediment and adapting to sea level rise

Opportunities for enhancing ecological values and processes

Questions? Nick Page | Raincoast Applied Ecology

• Email. nick@raincoastappliedecology.ca

Phone: (604) 724-4845