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E D M O N T O N

Edmonton Wastewater Source Control Program

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E D M O N T O N

• To Protect City sewer collection system

• To protect GB Wastewater Treatment Plant

• To protect quality of biosolids

• To protect environment and public health

Source Control Program

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E D M O N T O N

Agenda

• Edmonton sewer system

• Edmonton Sewers Use Bylaw and Sewers Bylaw

• Compliance Program

• Surcharge Program

• Special Projects

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E D M O N T O N

Drainage Infrastructure

• $14.6 Billion as of 2007

• 5143 km of sewer line

• 140 storm water management facilities

• 235 storm outfalls

• 43 peak storage units

• 70 pump wells

• 1 advanced WWTP

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E D M O N T O N

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E D M O N T O N

From King County, WA

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E D M O N T O N

Wastewater StormwaterCSO

Total LoadRiver ImpactsRiver Impacts

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E D M O N T O N

So What?So What?

• We must protect this valuable asset.

• We must protect NS River.

Otherwise

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E D M O N T O N

WWTP Upset

• Sewage flow into river without proper treatment

• Contaminated biosolids

• Odour complaints

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E D M O N T O N

Sewer ExplosionSewer ExplosionLouisville 1981Louisville 1981

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E D M O N T O N

Guadalajara 1992 Guadalajara 1992 –– 194 Dead194 Dead

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E D M O N T O N

Winnipeg Winnipeg –– July 2007July 2007

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E D M O N T O N

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E D M O N T O N

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E D M O N T O N

Control of Harmful DischargesControl of Harmful Discharges

• FLAMMABLE

• EXPLOSIVE

• CORROSIVE

• TOXIC

• HIGH CONCENTRATIONS

• LARGE VOLUMES

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E D M O N T O N

Organization

Regulatory Services

General Supervisor

Senior Engineer Compliance Supervisor Surcharge Supervisor

Investigators (8) Inspector (2)

Administrative Assistant

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E D M O N T O N

Sewers Bylaw #9425Sewers Use Bylaw #9675

www.edmonton.ca/bylaws_licences/bylaws

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E D M O N T O N

Sewers Use Bylaw #9675

• To regulate the release of wastewater from any source to the City sewer system.

• To specify the various sewer service charges and overstrength surcharges.

• Wastewater release limits specified in Schedule A, B and C.

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E D M O N T O N

Sewers Bylaw #9425

• To specify requirements for connecting a private drainage system to the City sewer system:

– Installation of manholes for monitoring purposes;

– Runoff drainage at high potential contaminate release areas;

– Installation of grease traps, oil/sand interceptors or other pre-treatment equipment;

– Installation of ISO certified amalgam separators etc.

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E D M O N T O N

Compliance Program• Inspections

• Proactive Program• Inspect all ICI premises every 5 – 10 Years

• Investigations • Reactive Program - complaint response• Sampling as needed

• Bylaw Enforcement• Verbal and written warnings• Fines and orders

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E D M O N T O N

Inspections

• Preliminary inspections• Detailed inspections• Key manhole inspections• Joint inspections with

AENV• Random and

unannounced• Documented

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E D M O N T O N

What do we inspect

• Chemicals used and chemical storage area

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E D M O N T O N

What do we inspect

• Grease traps

• Oil interceptors

• Sand interceptors

• Dental amalgam separators

• Sumps

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E D M O N T O N

Inspections

0500

10001500200025003000

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Preliminary Detailed Key Manhole

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E D M O N T O N

Investigations

• Reactive Program

• Public complaints (311-24/7)

• Spills (reported and unreported)

• Work with provincial and federal government

• Documented

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E D M O N T O N

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E D M O N T O N

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E D M O N T O N

Compliance monitoring

• Composite

• Grab

• Discrete

• Gas

• Visual

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Legal Sampling

• Full Chain of Custody

• Seals / Locks

• Photos

• Third Party Lab

• Documentation

• QA/QC Samples

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E D M O N T O N

Enforcement Actions• 1st Notice to Comply – oral or written

Usually this resolves the problem

• Second Notice to Comply – written warning

Usually have a site compliance meeting to address the problem and discuss solutions

• Fine / orderFines up to $10,000Disconnect services

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E D M O N T O N

Enforcement Matrix

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E D M O N T O N

Fines and WarningsFines and Warnings

0

50

100

150

200

250

300

350

2000 2001 2002 2003 2004 2005 2006 2007 2008

Notices Fines

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E D M O N T O N

Voluntary Compliance ProgramVoluntary Compliance Program

• To encourage achieving compliance through management and engineering methods

• More time/cost efficient than legal action

• Most industries will cooperate with reasonable, well founded request

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E D M O N T O N

Compliance Program ApprovalCompliance Program Approval

• Compliance Program Approval

– To allow a facility to release wastewater with elevated constituent levels for a specific period.

– To be subjected to terms & conditions as specified in the approval.

– Such as program schedule, periodic monitoring and reporting.

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E D M O N T O N

Overstrength Surcharge

• To recover additional cost associated with high concentration industrial wastewater

• Only applied to treatable wastes

• Surcharge rate is based on cost of treatment.

• Surcharge billing is calculated using averaged monitoring results

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E D M O N T O N

Surcharge Sampling

• Composite sample• 90ml every 15 minutes over a 24 hour period• 10 L Negane bottle

ISO17025 Certified

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E D M O N T O N

Surcharge samples

Total Surcharge Samples Each Year

0500

1000150020002500300035004000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

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E D M O N T O N

Surcharge revenue

Surcharge Revenue ($1,000)

$0$500

$1,000$1,500$2,000$2,500$3,000$3,500

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

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E D M O N T O N

Transfer Stations Monitoring

• Two fully automated wastewater transfer stations for release of trucked wastewater

• Card accessible with video surveillance

• Auto sampler

• Manifests required

Dumping portAuto sampler

Camera

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E D M O N T O N

Transfer Station RevenueTransfer Station Revenue

050

100150200250300350400450

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

$100

0

CBTS PMTS

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E D M O N T O N

Education

• Site Visits

– Inspection

– Investigation

– Meetings

• Web Page

• Pamphlets

• Media Releases

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E D M O N T O N

Recent Projects

• Pollution Prevention Workshops

• Dental Amalgam Reduction Program

• Field Computer Program

• FOG Reduction Program

• Mobile Vehicle Washing Control

• Regional Wastewater Source Control

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E D M O N T O N

Dental Amalgam Reduction Program

• Mandatory Program through education and enforcement actions since November 2007

• ISO certified amalgam separator installation rate reached 98% in Edmonton by end of 2008

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E D M O N T O N

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Regional Inspection

• Working together Alberta Capital Region Wastewater Commission to have consistent bylaw requirement and compliance program throughout Edmonton and capital regional municipalities.

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E D M O N T O N

Questions?Questions?

Thank you!Thank you!