Greater vancouver regional district s liquid waste management plan
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Greater Vancouver Regional District’s Liquid Waste Management Plan. GVRD. 21 municipalities & one electoral area Delivery of cost-effective utilities such as water, sewerage & drainage, & solid waste management Environmental stewardship & livability in the region

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Greater Vancouver Regional District’s Liquid Waste Management Plan

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Greater vancouver regional district s liquid waste management plan

Greater Vancouver Regional District’sLiquid Waste Management Plan


Greater vancouver regional district s liquid waste management plan

GVRD

  • 21 municipalities & one electoral area

  • Delivery of cost-effective utilities such as water, sewerage & drainage, & solid waste management

  • Environmental stewardship & livability in the region

  • Area size (Land & Water) : 329,202 hectares

  • Population: 2 million

  • Annual population growth rate: 1.6%


Greater vancouver regional district s liquid waste management plan

GreaterVancouverRegion


Historical context

Historical Context

The Sewerage and Drainage District and the first sewer plan date from 1914

The Rawn report recommended a sewerage plan for the growing region in the 1950s

The current LWMP provides a new path for the future


Sewer system 1950

  • Outfall Locations:

  • Untreated Sewage to Marine/Rivers

Sewer System: 1950


Sewer system 2000

Combined Sewer Outfalls

Sewer System: 2000


Estimated volume of untreated sewage discharge

First Sewerage Treatment Plants

Annacis Is. Sewerage Treatment Plants

VSA Operational Plan

Estimated Volume of Untreated Sewage Discharge


Lwmp background

The LWMP is a plan under the Provincial Waste Management Act

Stage 3 and Addendum approved by all municipalities and GVRD - March 2001

Provincial Minister approved LWMP – April 2002

Federal agencies have participated in development of the Plan

BIEAP / FREMP partnership used to address Federal issues

LWMP Background


Lwmp strategies

LWMP Strategies

1. Conserve Resources

2. Maintain Infrastructure and Stretch Capacity

3. Maximize Environmental Benefit per Dollar Spent


Strategic context

Strategic Context

1. Conserve Resources

Pollution prevention

Water conservation

Stormwater as a resource


Strategic context1

Strategic Context

2. Maintain Infrastructure and Stretch Capacity

$12 billion dollars in existing wastewater assets


Strategic context2

Strategic Context

3. Maximize Environmental Benefit per Dollar Spent

Limited financial resources and affordability context


Lwmp management process based on

LWMP Management Process Based On:

  • Appropriate monitoring program

  • Defensible Triggers

  • Acceptable Risk

  • Reasonable Options

  • Mutually Agreeable Timelines


Process context

Process Context

A science-based approach is needed

There must be an understanding of environmental risk

The cost and benefits of options must be considered

The LWMP incorporates these into a formal upgrading trigger process


Lwmp upgrading trigger process

NO

YES

LWMP Upgrading Trigger Process

Define and evaluate risk in consultation with Ministry of Environment, Lands and Parks & Environment Canada

Discharge(s) meets Water Quality Objectives and other established criteria

Assess options, costs, and benefits

Ongoing Review by Environmental Monitoring Committee

Monitoring

Actions

District Board to select appropriate responses in consultation with Ministry of Environment, Lands, and Parks & Environment Canada


Greater vancouver regional district s liquid waste management plan

Sources

Products & Pre-disposal

Influent

Collection

Treatment

Release

Receiving Environment

Air

Atmosphere

Surface Water

Effluent

Re-use

Solid

Land

Municipal Wastewater Collection and Treatment System


Treatment plants

Treatment Plants


Treatment plants1

Treatment Plants


Treatment plants2

Treatment Plants

  • Established base level of treatment

    • Secondary to river

    • Primary to marine

  • Upgrading based on environmental need and triggers

  • Addendum No. 1 clarifies growth-driven upgrading at Iona and Lions Gate


Recommendations wwtps

Recommendations - WWTPs

  • Base expansions for

    • growth, renewal, and substantial compliance

  • Investigate and monitor high loading sources

  • Assess copper reductions via water treatment

  • Evaluate U.V. at Annacis, Lulu, Northwest Langley

  • Monitor conditions and re-examine issues


Source and demand management

Source and Demand Management


Source management

Source Management

  • Why:

    • Protect workers, infrastructure, WWTP processes

    • Improve biosolids quality

    • Stretch capacity of existing systems

    • Reduce effect on the environment

  • Sectors:

    • Industrial

    • Commercial & institutional

    • Residential


Source and demand management1

Source and Demand Management

Emphasis on Pollution Prevention

Control of Toxic Substances Discharged to Sewer

Consistent with Canadian Environmental Protection Act (CEPA 1999)


Greater vancouver regional district s liquid waste management plan

Reduction at the Source

Substance Prohibition

Sector Control Programs

Pollution Prevention

Local Limits

Methodology

Sewer Use By-law

Source Control

Water Conservation

Public Education

Pollutant Reduction


Source and demand management2

Promotion of water conservation

Eliminate stormwater discharges to sanitary sewers

GVWD program to reduce copper levels

Education programs targeting green buildings, sustainable communities, residential, commercial and institutional practices

Source and Demand Management


Residuals management

Residuals Management

  • The beneficial reuse of biosolids


Recycled biosolids by market sector in 2000

Recycled Biosolids by Market Sector in 2000


Environmental management

Environmental Management


Environmental management1

Environmental Management

  • Designated WLAP water use protection is paramount

  • A receiving environment science-based approach

  • A formal process to determine upgrading needs

  • A standing multi-agency Environmental Monitoring Committee


Gvrd s lwmp environmental management program

GVRD’s LWMP Environmental Management Program

  • Receiving environment effects monitoring

  • Discharge characterization

  • Ambient monitoring

  • Risk assessments

  • Options evaluation


Emp monitoring components

EMP Monitoring Components

  • WWTPs (5 Plants) - monitor effluent & receiving environment

  • CSOs (50)

  • Recreational beaches (32 beaches with 120 sites)

  • Stormwater (130 watersheds)

  • Regional monitoring

  • Municipal monitoring programs


Treatment plants receiving environment effects monitoring

Treatment Plants Receiving Environment Effects Monitoring

  • Understanding the fate of discharges


Gvrd s lwmp receiving environment monitoring

GVRD’s LWMP Receiving Environment Monitoring

  • water and sediment chemistry

  • benthic invertebrate community

  • acute and chronic toxicity

  • bioaccumulation & biomagnification

  • habitat impairment & community alteration


Detailed benthic infaunal analysis

Detailed Benthic Infaunal Analysis


Receiving environment investigations

Receiving Environment Investigations

  • Reviewed by Environmental Monitoring Committee

  • Detailed environmental fate and effect studies

  • Long-term monitoring programs

  • All receiving waterways in the region


Lwmp summary

LWMP Summary

  • A long term commitment to sustainable wastewater management

  • Action plans to address all identified issues

  • Formally reviewed on a five-year basis

  • Coordinated with other agencies including using BIEAP/FREMP as a senior level clearing house


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