Joint Wastewater Master Plan Stage 2 Analysis and Evaluation - - PowerPoint PPT Presentation

Joint Wastewater Master Plan

Stage 2 – Analysis and Evaluation

Joint Shared Services Committee November 9, 2017

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Presentation Overview

Purpose Progress System

• verview

Issues and Opportunities Next steps

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Purpose

Regulations, Technology, and best practices

Review JAMES Plant infrastructure suitability for Abbotsford, Mission and Industry in the next 25 years

Plant

• dours

Resource Recovery Biosolids

• ptions

Develop a capital growth program for next 25 years

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OCP Alignment

CSP OCP Master Plan Financial Plans DCC

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Council Strategic Plans (CSP)

• Vibrant Economy
• Complete Community
• Fiscal Discipline
• Organizational Alignment
• Enhanced lifestyle opportunities and community health
• Improved public safety
• Excellence in financial management and planning
• Optimized planning and management of assets and

infrastructure

• Effective economic development

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Progress

Master Plan Stage 1 Stage 2 Stage 3 Stage 4

BACKGROUND REVIEW AND DATA ASSESSMENT ANALYSIS AND EVALUATION

June 2018 Fall/Winter 2017 Spring 2018 April 2017

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System Overview

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System Overview

• JAMES Plant treats sewage from

Abbotsford, Mission, and Sumas Washington

• Secondary treatment
• Discharge to Fraser River
• Serves 240,000 population

equivalent

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Service Area

DISTRICT OF MISSION CITY OF ABBOTSFORD

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Abby Flow Mission Flow

JAMES WWTP (Flow)

Influent Primary Treatment Secondary Treatment Disinfection

Schematic

Fraser River

N

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Treatment Process

Solids Treatment

• Pasteurization
• Anaerobic Digestion

Dewatering Land Application Inflow to Plant

• Abbotsford
• Mission
• Sumas, WA

Preliminary Treatment (Headworks Screening) Primary Treatment Secondary Treatment (Biological) Disinfection

Fraser River

Solids Source control to prevent upsets

Centrate Treatment

Flow Flow Flow Load Flow Load Load

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Inflow Components

Inflow to Plant

• Abbotsford
• Mission
• Sumas, WA

Residential, Commercial, Institutional Industrial Dry Industries Wet Processors (Extra Strength)

High load

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Source Control

To protect the sewage collection system, the treatment facilities, the biosolids quality, the receiving environment, and the health and safety of the public and sewer workers

• Importance of pH
• Industrial monitoring
• Strength/pH

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Issues and Opportunities

Extra Strength (High Load) Industries Projection Plant Resiliency Capacity Odour Biosolids Biogas

Resource Recovery

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Issues & Opportunities #1 Extra Strength (High Industry Load)

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Load

Milk processor Total Plant Load (kg/yr)

Six of them are contributing to the extra strength load (80-85% of total):

• Milk Processor
• Fruit Processor
• Transportation of food grade

liquid/dry goods

• Chicken/turkey processor
• Sprouted grain bread bakery

Extra Strength Load (kg/yr) There are approximately 25 processing industries in Abbotsford and Mission, discharging high load to the JAMES Plant (Extra Strength Industries)

44% of Total Load

Extra Strength Industrial Load

• Significant increase in loading was observed in recent years
• Increase in loading can accelerate the need for upgrading secondary

treatment

• Staff consulted with six highest load industry in May 2016:
• All industries are expecting significant growth in the near future
• Onsite pretreatment was discussed. Concerns about footprint,

potential cross-contamination with food-grade processing plants

• Staff to continue monitor the load from these industries, and to review

the current rates for full cost recovery, and provide options.

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• 5,000

10,000 15,000 20,000 25,000 30,000 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045

Organic Load (kg/d) Year

Total Organic Load Extra Strength

Extra Strength Industrial Load

Future Projection Historical ~ 25 Businesses

Full cost recovery including capital, operational and maintenance, asset renewal, and associated risks and liabilities will be reviewed. Options to be provided. Growth at 1.7% per year ~ 44%

• f Total

Load

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Issues & Opportunities #2 Capacity

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Population Projection

Historical Future Projection

*Note: Abbotsford Sewer master plan work may result in slight adjustments in ICI population

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Flow Projection

Future Projection Historical

2012-2017

• water conservation
• I&I reduction

Aldergrove removed (May 2011)

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• 5,000

10,000 15,000 20,000 25,000 30,000 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045

Organic Load (kg/d) Year

Total Organic Load Extra Strength

Load Projection

Future Projection Historical

Future Capital Upgrade

Additional Screw Pump? Additional Screen?

v

Add’l Primary tanks?

v

Add’l Digesters?

v

Add’l Trickling Filters? Second Outfall?

v

Add’l Pasteurization Tank?

v

Add’l Secondary Clarifiers?

Upgrades are required to service growth, in a Phased, Incrementable, Affordable, Sustainable, Resilient, and Flexible approach over the next 25 years Preliminary (Flow) Primary (Flow) Secondary (Load) Solids (Load) Disinfection, Outfall (Flow)

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Issues & Opportunities #3 Plant Resiliency

Flooding & Seismic

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Flooding

• Plant currently is protected from

Fraser River flood of record (1894) by Matsqui Dyke

• Ability of the dyke to adapt to

climate change is being reviewed as part of the City’s Drainage Master Plan

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Seismic (Timeline)

1980s 2017 JAMES Plant constructed (Stage 1) Building Code (1:475 year)

• Tanks (Sloshing)
• Building

Building Code (2005/2006) (1:2475 year)

• Concerns with liquefaction (soil to jelly) +

Horizontal/Vertical settlements

• Slumping towards River

Building Code (Updated) (2010/2012) (1:2475 year) 1990s 2000s 2010s Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 Stage 7 (Phase 1)

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Seismic

• Plant was designed to the 1:475 year event
• Structures meet requirements for normal importance factor for 1:475 –

magnitude ~ 6.5

• Mirror other Municipal seismic upgrades – under review
• Existing infrastructure will be used until end of life
• Objective for new structures to meet current standards
• Potential seismic barrier at Fraser River
• New buildings to 1:2475 - magnitude 7, for post disaster importance per

BC Building Code, and incorporate changes in 2015 NBC.

• New tanks design to engineering best practices for liquid retaining

structures – more strict than building code

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Issues & Opportunities #4 Odour

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JAMES Plant N

JAMES Plant odor is in line with typical treatment plants

• Goal is to meet ambient air quality
• bjective of <0.005 ppm Total

Sulphur (Desirable level from Metro Vancouver’s Ambient Air Quality Objectives)

• This is being met at the property

line MISSION MATSQUI FIRST NATION

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Perform Odour Study

• Audits - H2S continuous monitoring for up to 1 week
• Review current system for leaks and efficiency

Odour

Sulfatreat Biofilter

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Odour

Possible future upgrades:

• Covering various primary and secondary tanks
• Would require adding a second biofilter

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Issues & Opportunities #5 Biosolids

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Biosolids (Timeline)

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 94% mine Reclamation; 6% Trees Val-E-Gro™ Composting started  5%. Expansion of Val-E-gro™ JAMES 5 year Biosolids hauling and land application contract Ceased Val-E-Gro™

• Costly. Excess

manure/compost in Fraser Valley 6 month storage of biosolids due diligence.

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Biosolids (Production)

*Note: Estimation based on current rate

2016 (Current) 2041 (Projection) Annual Production (Wet Tonnes) 5,400 8,250 Estimated Budget ~$400K ~$600K*

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What solids treatment / biosolids disposal options are available?

• Microwave enhanced oxidization, pilot project
• Reduces biosolids & produces more gas in Digesters
• Potential study - Drying Biosolids to reduce weight
• Land application seems to be best current solution

Long trucking distances to locations further away

• How to Reduce, or Reuse sustainably?
• Request for Proposals (RFP) in the future to determine
• ptions

Biosolids

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Issues & Opportunities #6 Biogas

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• Biogas is produced from the anaerobic

digesters ~2,500,000 m3/year.

• Half of this is used for process and

space heating; half flared – unused resource.

• Between 1983 to 2012, the Plant

produced electricity using co- generation.

• Explore opportunities:

– Create electricity – Sell gas on grid

Biogas

Flare at the JAMES Plant 250 kW Waukesha Engine

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Guiding Principles

JAMES Plant meets Provincial and Federal regulations Regulations Provincial

Municipal Wastewater Regulations (MWR) Organic Matters Recycling Regulation (OMRR)

Federal

Federal Wastewater Systems Effluent Regulation (WSER)

Wastewater

(Secondary Treatment)

Biosolids

(Class A)

Redundancy (Reliability)

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Assumptions

Abbotsford Residential Growth @1.6% annually + ICI Growth

(Including Sumas WA and First Nations)

Mission Residential and ICI Growth @ 2% annually Extra Strength (High load) Industries @ 1.7% annually from 2016 level Climate Change Phosphorus effluent limit not applicable (i.e. Tertiary treatment not required) Regulatory requirements remain unchanged (Based on workshop with senior governments)

40 Abbotsford Farmers Market Mission Farmers Market Canada Day

Public Events

Engagement

Website Presence

• UMC (April 26)
• JSSC (May 18)
• Abbotsford Council Workshop (May 25)
• Mission Council Workshop (July 10)
• Stage 1:
• UMC (August 30)
• JSSC (September 14)
• Stage 2:
• UMC (October 26)
• JSSC (November 9)

Council

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Next Steps

Stage 1 Stage 2 Stage 3 Stage 4

BACKGROUND REVIEW AND DATA ASSESSMENT ANALYSIS AND EVALUATION

June 2018 Fall/Winter 2017 Spring 2018

Master Plan

April 2017

• Draft capital plan with

project timing and cost estimates

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QUESTIONS / COMMENTS ?