Master Plan drainase

8/10/2019 Master Plan drainase

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EXECUTIVE SUMMARY

This 2003 Drainage Master Plan outlines the strategic direction for Drainage Services foplan is a continuation of the direction established with the 1991 City Council approvedthe 1991 plan, key areas identified were: protection of existing homes from basement environmental protection, and accommodation of new development. Since that time,developed a number of strategies to address these issues, including the Sanitary ServicCity Council in July 1998, and the Combined Sewer Overflow Strategy approved by City

The 2003 Drainage Master Plan identifies current issues and describes strategies to addissues identified include: Total Loadings to the North Saskatchewan River, New Water Regional Servicing, Membrane Filtration, Industrial Land Development, CommunicationInfrastructure Rehabilitation/Maintenance. These issues were identified through a sermeetings with the following groups and stakeholders: Drainage Master Plan Working CoServices management, an outside expert advisory group, and the representatives from Technical Advisory Committee.

In the near term, it is not anticipated that the issues identified will have a significant Services 20-year financial Capital Priorities Plan. However, a few of the issues have thfunding gaps should conditions change from what is known today. These issues includeMembrane Filtration, and stormwater management facilities for industrial land develo

In July 2002, City Council approved the Land Drainage Utility, a significant step for Drautility, implemented January 1, 2003, will allow Drainage Services to develop long-terfor stormwater management projects. However, funding gaps remain as demands excopportunity exists to further improve water quality in the North Saskatchewan River, wdevelopment of a water recycling distribution network driven by industrial and irrigati

Guided by this Drainage Master Plan, Drainage Services looks forward to taking on the decade and beyond.

Kurt Sawatzky, P. Eng.Manager, Drainage Services


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TABLE OF CONTENTS

EXECUTIVE SUMMARY

1.0 PRINCIPLES AND POLICIES .................................................................

1.1 Vision ................................................................................

1.2 Mission...............................................................................

1.3 Operating Principles ..............................................................

2.0 DEVELOPMENT OF 2003 MASTER PLAN.................................................

2.1 1991 Policy Document ............................................................

2.2 Identification of Issues............................................................2.2.1 Working Committee .....................................................2.2.2 November 2001 Workshop .............................................

2.2.3 July 2002 Workshop .....................................................2.2.4 November 2002 Workshop .............................................

3.0 DRAINAGE SERVICES ........................................................................

3.1 Mandate .............................................................................

3.2 Customers/Stakeholders...........................................................

3.3

Existing Facilities ..................................................................3.3.1 Combined Sewer System ...............................................3.3.2 Sanitary Sewer System .................................................

3.3.3 Stormwater System .....................................................3.3.4 Wastewater Treatment and Biosolids Management................

3.4

Business Operations ...............................................................3.4.1 Planning...................................................................3.4.2 Design and Construction................................................


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APPENDICES

Table 1 Drainage Master Plan IssuesTable 2 Drainage Master Plan Issues and Strategies MatrixTable 3 Strategy ProgressTable 4 Drainage Services Budget Plan

Table 5 Summary of Sewer StatisticsFigure 1 Sanitary Servicing Strategy


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Drainage Services is committed toprotect the environment and to

provide an acceptable level ofservice that is timely andcost-effective.

1.0 PRINCIPLES AND POLICIES

1.1 Vision

The vision of Drainage Services is:To be recognized as a leader in environmentalutilization of best practices for drainage service

1.2 Mission

Drainage Services mission is:

To plan, design, construct, operate, and maincollect, treat, and dispose of wastewater and sindustrial, commercial and institutional customorder to ensure a safe environment and public h

1.3 Operating Principles

The principles under which Drainage Services o

to protect municipal infrastructure inveexisting drainage collection and treatm

to provide an acceptable level of servic

to maximize environmental protection

to support orderly development in the

to operate Drainage Services in an effic

2.0 DEVELOPMENT OF 2003 MASTER

The purpose of the 1991 PolicyDocument was to address drainagemaintenance, upgrading, anddevelopment servicing requirements.

2.1 1991 Policy Document

On February 12, 1991 City Council approved thePolicy Document. The purpose of the 1991 Polispecifically deal with both the long-term and t

drainage maintenance, upgrading and developm


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Objectives of the 1991 PolicyDocument were as follows:

Systems Maintenance andUpgrading

Environmental Protection

Systems Development

Major strategies developed after therelease of the 1991 Drainage MasterPlan were:

From that document the overall Drainage Servicfollows: To provide an acceptable level of servtimely, and environmentally conscious by:

maintaining sewer systems,

upgrading sewer systems, and developing sewer systems for future de

This was to be achieved through the following p

Principle: To Protect Investment and to Providto Existing Customers.

Strategies: - reduction of inflow/infiltration tsewers and combined areas

- upgrade drainage systems and co- provide adequate drainage syste

Principle: Maximize Environmental ProtectionStrategies: - minimize effects of non-plant di

-provision of additional wastewatenhanced standards

- improve the quality of surface w-

control of other point source dis

Principle: To support Orderly Development inStrategies: - Drainage system planning

-

expansion of storm and sanitary -provision of additional wastewat

Sanitary Servicing Strategy

CSO Control Strategy

Inter-connection ControlStrategy

The 1991 Policy Document provided Drainage Seand implement strategies addressing issues brouMajor strategies and programs developed by Drathe 1991 Drainage Master Plan Policy Document


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Significant programs identified were:

Tertiary Treatment

Lot Grading Inspection Program

Floodproofing Program

QualServe

Sanitary Servicing Strategy

Combined Sewer Overflow Control Strate

Interconnection Control Strategy

Tertiary Treatment at Gold Bar Wastewa

Lot Grading Inspection Program Floodproofing Program

QualServe Self-Assessment and Peer Revi

Identification of issues began in April2001 with the Drainage Master PlanWorking Committee.

Issues were further evaluated andnew issues identified at a November2001 workshop that includedDrainage Services management.

2.2 Identification of Issues

2.2.1 Working Committee

In April 2001, a Drainage Master Plan Workingrepresentation from Planning, Wastewater Trand Construction, and from Corporate FinanceCommunications.

From April 2001 to November 2001 this Commitems:

identification of four distinct issues cateTechnology and Customer Services

initial identification of issues within each

initial identification of strategies to add

2.2.2 November 2001 Workshop

The issues identified by the Working CommittServices management at a one-day Drainage M

November 2001.

The management group completed the follow

evaluated and discussed issues presented

identified new issues and enhancements

prioritized all issues based on a Value En


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Representatives from theInfrastructure Technical AdvisoryCommittee (ITAC) provided feedbackand direction for the DrainageMaster Plan.

The complete list of categories and issues is s

2.2.3 July 2002 Workshop

In July 2002, the Drainage Master Plan issues wexpert advisors in order to obtain an outside oto date, and to identify areas of risk and uncethis group were:

reviewed objectives and principles of the

reviewed and further prioritized the 28 p

brainstormed to identify strategies that mhigh priority issues

evaluated and prioritized strategies

2.2.4 November 2002 Workshop

On November 14, 2002, a presentation of the and strategies was made to representatives frTechnical Advisory Committee (ITAC). This gDrainage Services stakeholder groups, such asInstitute and Alberta Environment. The groupdirection to the contents of the Drainage Mas

Drainage Master Plan Developm

Working Committee

Expert Advisors

Jan April Sep2001

Management

ITAC Committee


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Drainage Services collects,

transmits, and treats Edmontonswastewater and, collects andtransmits stormwater runoff underthe Approval-to-Operate fromAlberta Environment.

Drainage Services has regulatoryauthority by means of three bylaws:

1.

Sewers Bylaw2. Sewers Use Bylaw

3.

Surface Drainage Bylaw

3.0 DRAINAGE SERVICES

3.1 Mandate

Drainage Services is responsible for:

the collection, transmission and treatmefrom residential and non-residential sourindustrial sources

the management and proper disposal of treatment process

the collection and transmission of stormwSaskatchewan River

All services provided by Drainage Services are rEnvironment under an Approval-to-Operate. Drthe sanitary sewer systems and land drainage (s

utilities.Drainage Services derives its authority from Citbylaws:

Sewers Bylaw(Bylaw No. 9425) regulates condrainage systems and the City of Edmonton sewcollection of the Sanitary Sewer Trunk Charge a

Sewers Use Bylaw(Bylaw No. 9675) regulatesCity of Edmontons sewerage system and watercharged to customers for sewer service.

Surface Drainage Bylaw(Bylaw No. 11501) redrainage requirements within private and publi

Several initiatives within Plan Edmonton (approare fundamental to Drainage Services business aenvironment, supporting growth, economic devco-operation). Other issues have been identifie


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Strategy (e.g. infrastructure in decay, increasinexpectations).

Drainage Services stakeholdersinclude citizens, land developers,new business enterprises, other Citydepartments, municipal and publicsector enterprises

3.2 Customers/Stakeholders

All citizens of the City of Edmonton are Drainag

and businesses receive sewerage and drainage sconvenience, safety, and public health protecti

the development industry

Alberta Environment

Environment Canada

Department of Fisheries and Oceans Can

environmental and conservation advocac

Combined sewers service 15 per centof the total developed area in theCity and form the core of the Citydrainage system.

3.3 Existing Facilities

3.3.1 Combined Sewer System

Built during early 1900s to the 1950s, combineapproximately 5,000 hectares in the City, reprEdmontons currently developed area. Domescollected in one pipe and transported to the GPlant. There are approximately 930 kilometrethe core of the City system.

Problems associated with combined sewers inc

overloading the wastewater treatment p

discharges of untreated sanitary sewage intensity rainfalls

back-ups of sanitary sewage in basement


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Most of the sewage in the sanitarysewer system discharges through thecombined sewer system to the GoldBar Wastewater Treatment Plant.

The stormwater system is comprisedof storm sewers, overland flowroutes, and stormwater management

facilities. The system is designed tolimit property damage in a 1:100year rainfall event.

3.3.2 Sanitary Sewer System

The installation of a separated sanitary systemCurrently, approximately 1,700 kilometres of 27,000 hectares of land, or 85 per cent of the

City of Edmonton.Most of the sanitary sewer system flows throuto the Gold Bar Wastewater Treatment Plant.of the developed area of the City drains to thWastewater Treatment Plant. In exchange, seCity of Leduc and the Town of Beaumont draiGold Bar Wastewater Treatment Plant.

The sanitary system is interconnected to the slocations in the City. Interconnections were

the sanitary system during wet weather eventinterconnections were built between 1950 andstart of the Interconnection Control Strategy has been reduced to under 200. Work continureduce the impact of all interconnection sites

3.3.3 Stormwater System

Installation of the separated storm sewer systthe sanitary system in the mid 1950s. Currenkilometres of storm sewers servicing about 27per cent of the total developed area of the Ci

The stormwater system also has overland flowcreeks, ponds, and wetlands. Overland flow rboundaries resulting in the need for inter-juristormwater.


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The Gold Bar Wastewater TreatmentPlant was the first secondarytreatment facility in Canada.

3.3.4 Wastewater Treatment and Biosolids

The Gold Bar Wastewater Treatment Plant prodisinfection for wastewater from the combineThe Gold Bar Wastewater Treatment Plant ha

ML/d and a peak capacity of 420 ML/d. Primarated capacity of 910 ML/d.

The Alberta Capital Region Wastewater Commtreatment plant to the northeast of EdmontonEdmonton and the Alberta Capital Region Wasagreement that covers the present flow excha

Biosolids from both wastewater treatment plathrough the Nutri-Gold program, or to the Waoperated co-composter located in the Cloverb

northeast Edmonton.

Design and Construction

3.4 Business Operations

Drainage Services consists of four inter-related and Construction, Operations, and Wastewater Drainage Services also administers the Office of

3.4.1 Planning

Drainage Planning provides management, planretention, customer support and services neceupgrade, and mitigate the environmental imp

and drainage systems.

3.4.2 Design and Construction

Drainage Design and Construction designs anddrainage system facilities including open cut aservices are also provided to organizations ou


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Operations

Stormwater Management Services

3.4.3 Operations

Drainage Operations is responsible for operatiwastewater collection system (conveying flowtreatment plant) and a reliable stormwater m

flows to the North Saskatchewan River and its3.4.4 Wastewater Treatment

Wastewater Treatment provides biological trebiosolids management for the City. This sectmanagement services to the Alberta Capital Rand leachate treatment services for the Waste

3.4.5 Office of the Infrastructure

The overall goal of the Office of the InfrastrucCitys infrastructure is in a good state of repadevelopment programs are adequately fundedachieved through the ongoing development anstrategies to address the infrastructure gap - projected cost of infrastructure projects and to pay for them.

Additional duties of the Office of Infrastructuinvestigating innovative tools and processes tomanagement, optimizing existing and potentiaco-ordinating annual updates of the Citys inv

and promoting awareness of infrastructure issThe Office of the Infrastructure also co-ordinaAlberta Program, a cost-sharing partnership fo

3.5 Business Activities

The primary business activities of Drainage Servtreatment, and disposal services for wastewate


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Biosolids Management for theAlberta Capital Region WastewaterCommission

Laboratory Services

activities comprise the following service areas:

Stormwater Management Services: incconstruction, operation, and maintenancsewers, manholes, dry ponds, wet pondsoutlets. These services are now paid forUtility established January 2003.

Sanitary Customers City of Edmonton

185,000 residential and 16,000 industriaThese customers receive wastewater conincluding plans, approval, construction, oof sanitary and combined sewers, wastewbio-solids management and disposal. Ththe Sanitary Utility.

Overstrength Customers: Customers ar

that process large volumes of raw materis very high in organic or chemical conteare charged at cost for the extra treatme

Biosolids Management for the Alberta CCommission: Drainage Services providesdisposal services for biosolids from the AWastewater Commissions treatment pla

Leachate Treatment Services: Drainageleachate treatment facility for the Waste

Laboratory Services: The laboratory at

Treatment Plant performs water quality

reporting to Alberta Environment. It alsother municipal jurisdictions and other oThe laboratory received accreditation in

Lot Grading Program Services: The lot

11501, ensures developed properties havgood drainage when the final landscaping


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Construction Services tunnellingcrew

Private Development Services:Drawinginfrastructure quality assurance servicesare designed and built to City standards responsibility.

Service Connections: Properties requirinlines pay for this construction work. Draco-ordination, design, and construction o(for Epcor Water Services Inc.) service cojurisdiction extends from the sewer mainway to the start of private property.

Construction Services: Drainage Servicemanpower resources to construct a signifinfrastructure needs. This includes all tustorm and wastewater transmission in th

Industrial Wastewater Control: The priWastewater Control Unit is the administrSewers Use Bylaw No. 9675. The basic ocontrol wastewater releases which may chealth or the environment, cause damagthe wastewater treatment facility, or reProvincial standards.

4.0 IDENTIFICATION OF ISSUES

A number of issues have been identified to have Services. These have been broken into four distiTechnology, and Customer as shown in Table 1 (adiscussed in detail in the following sections.


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Total loadings measures both theconcentration and volume of thepollutants entering the NorthSaskatchewan River.

Selection of the loading parameters

and the assimilative capacity of theriver is in progress.

Ammonia in the aquatic environmenthas been listed under the CanadianEnvironment Protection Actas toxic.Other regulations could beintroduced that impact final effluentdischarge requirements.

4.1 Regulatory

4.1.1 Total Loadings

The sewerage and drainage systems are regulaissued by Alberta Environment. In 2005, the C

Operate is expected to be driven by the princidiffers fundamentally from the current regulat

Total loading is a cumulative method for examriver. Total loading analysis attempts to combvolume data from multiple discharge sources. is a well established and straight forward meaimplementation of a total loadings approach reriver conditions.

At present, the City provides to Alberta Enviro

storm and combined sewer overflow total loadSaskatchewan River for several constituents. Tthe City and submitted to the Province as partthe selection of loading parameters and the ascapacity of the river will be carried out duringrenewal process.

4.1.2 Stormwater Quality Enhancement

Alberta Environment and Environment Canada regulation of stormwater quality will be a requ2001, an Alberta Environment policy documen

removal requirements. This has encouraged mlevel of stormwater treatment for new develo

Stormwater control limits could lead to requirinfrastructure. It will likely lead to the introdpractices into the Citys Servicing Standards fo


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The issue of disinfection regardsselecting the appropriate treatmenttechnology and capacity forcombined sewer overflow control.

4.1.3 New Water Quality Parameters

Under the Canadian Environment Protection Aaquatic environment has been listed as a toxicrecognizes that ammonia poses a risk to aquatEnvironment Protection Act, proposed limits hammonia discharges based on pH and temperaof allowable ammonia for discharge to watercodischarges of final effluent from the Gold Bar WThe impacts of additional regulation for ammoEnvironment Canada finalizes its prevention st

Environment Canada and Alberta Environment other water quality parameters. Possible paraCryptosporidium, Giardia, pesticides, endocrinchloride, and road salt.

4.1.4 Wet Weather Disinfection

In the future, more combined sewer overflow wBar Wastewater Treatment Plant. Due to the volumes and flow rates during wet weather coOverflow Control Strategy found that primary disinfection will be effective in protecting thethese flows is being proposed by ultraviolet ra

Disinfection for the Enhanced Primary Treatmeplanned to be by chlorination/dechlorination.

chlorinated organics in wastewater raised in thProtection Act Toxics Assessment in June 2001Services changing to ultraviolet disinfection. Tinvestment is forcing the review of wet weathvarious process components.


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A formal environmental managementsystem can be used to improveenvironmental performance.

Some jurisdictions in the Region donot have agreements with the Cityon regional regulations, especiallyenforcement.

Both the Alberta Capital RegionWastewater Commission and the Cityhave concerns with existing servicingagreements.

4.1.5 Sewer Separation

There are two technical reasons for separatingreduce combined sewer overflows, and secondflooding. Opportunistic separation is being pu

can be realized during rehabilitation programsseparation is cost prohibitive, Alberta Environmmove towards environmental performance equseparation over the long term (i.e. 100 years.)

4.1.6 Environmental Management

The management and operation of the stormwsystems by Drainage Operations involves a connatural environment. This interaction may bewastewater effluent discharge, or unplanned,

sewage overflow. One of the best methods of issues is through the use of a formal environmeas ISO 14001. Advantages of a formal environmcan include improved environmental performaimproved compliance, employee involvement,

4.1.7 Regional Regulations

Sewage discharged into the regional wastewatthe City is treated at the Gold Bar Wastewaterin the responsibility for any restricted wastes rcommunities being transferred to the City. Som

do not have agreements with the City on:

bylaw limits

industrial monitoring

overstrength surcharges

enforcement


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Financing of major stormwaterservicing requirements is a concernfor industrial land development.

The development industry could face

increased costs due to AlbertaEnvironment requirements forsediment removal.

4.2 Growth

4.2.1 Regional Servicing

The Alberta Capital Region Wastewater Commshare transmission and treatment facilities, wh

of agreements. This partnership is a key elemdelivery Drainage Services provides for its custAlberta Capital Region Wastewater Commissiorelated to the existing agreements and future organizations. These concerns are related to ccapacity, financial viability, growth pressures,

4.2.2 Industrial Land Development

In the City of Edmonton, the cost of new infraprivate developers, with costs recovered throu

Contribution system. This mechanism works wbecause development usually proceeds in an ofashion. In addition, the development of all repreceded by an Area Master Plan and a Neighbclearly identifies all capital works required an

By contrast, industrial land development in thebasis so that identifying and planning for the fexpenditures is more problematic. While the Sprovides a clear mechanism for financing sanitsame consistency with regards to financing sto

Permanent Area Contributions for stormwater are collected ahead of the construction of req

Industrial land developers are concerned aboustorm sewer servicing and the current design srequiring curb, gutter, catchbasins, and under


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Drainage Services values theretention of existing wetlands andthe incorporation of wetlands intothe City drainage infrastructure.

Intensification of development inexisting neighbourhoods mayincrease combined sewer overflows,reduce the level of service providedby existing sewers, and increase therisk of basement flooding.

4.2.3 Land Development Requirements

Alberta Environment requires 85 per cent remosize greater than 75 microns for all new develoEdmonton will enforce this requirement for all

City. Further regulation of both design elememay be required in the future. The developmeconcerns about costs.

4.2.4 Retention of Wetlands

Existing wetlands form part of the natural hydimportant components of a watershed. City Pnatural sites including natural wetlands in EdmTeam created the position of Conservation Coopolicy. Drainage Services supports the Conserv

implementing this voluntary compliance policyDrainage Services values natural wetlands for tand water quality enhancement benefits. Draiincorporate, wherever possible, natural, altereinto the Citys drainage infrastructure. Watersediment forebays and pre-treatment cells witminimum inlet requirements when using natur

Natural wetlands are protected under the WatThey cannot be altered without approval fromrequires mitigation where wetlands are lost. T

and management of natural wetlands will formStormwater and Water Quality Strategies.

Subject to the requirements of the Water Act,control over natural wetlands under the Municdevelopment of specific bylaws. The developmmixed reaction to wetlands. Some view wetla


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Construction of enhanced primarytreatment will have operational andfinancial implications.

Introduction of membrane filtrationmay result in increased capacity forthe Gold Bar Wastewater TreatmentPlant, allow effluent reuse, andachieve greater disinfection.

land unavailable for development if maintainedevelopers are attempting to incorporate wetlmarketing feature.

4.2.5 Land Use Intensification

Intensifying the use of built-up lands will placesewerage and drainage systems. Increased dissystem may result in increased frequency and Overburdened sewers may be prone to increasExamples are apartments replacing houses, anoffice buildings being converted to condominiuEdmonton has seen a resurgence in the numberesulted in intensification of existing neighbouEdmonton suggest that more people are choosclose to the city core. As well, there have bee

intensifying other areas of the city including thCampus, the University of Alberta Farms, WestGriesbach.

4.3 Technology

4.3.1 Enhanced Primary Treatment

The Combined Sewer Overflow Long Term ConCity to construction of up to 1,600 ML/d treatmWastewater Treatment Plant. To achieve this primary treatment is proposed. There are a n

ultraviolet light disinfection technologies availthe enhanced primary treatment are:

choosing the appropriate treatment tech

achieving disinfection requirements

operating impacts of enhanced primary t

financial requirements to operate


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Management of new databasetechnologies needs to be addressed.

A funding gap exists for the LandDrainage Utility with regards tofuture regulatory requirements,growth demands and rehabilitation.

4.3.2 Membrane Filtration Technologies

Membrane filtration is a new technology that csuspended solids. This technology has the potGold Bar Wastewater Treatment Plants capac

treatment to occur within a smaller area. Othinclude: effluent reuse and reduced dischargesgreater levels of disinfection. As with any newexperience to measure the benefits.

4.3.3 Information Management

SCADA, GIS and database (DRAINS) technologieabilities to collect, manage, monitor, and inteand inventory information. The appropriate mprocesses, and requirements for data need to

ability, technology capability and redundancy,need to be established in Drainage Services to management of information.

4.4 Customer

4.4.1 Land Drainage Funding

Establishing the Land Drainage Utility in 2003 paddress a number of funding issues for stormwability of the utility to raise rates in order to uremains an outstanding issue. Although the ut

deliver its mandate, current demands exceed for growth and rehabilitation continue to lag b

4.4.2 Cost Minimization

During the early to mid 1990s, Drainage Servicwas not covering the costs of operating and mdrainage systems. During that period, there hsanitary rate above inflation in order to bring t


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New environmental protectionmeasures increase the costs forDrainage Services.

With an aging system comes the riskof line failures and increasing costsin the future.

Increased construction of otherutilities within Drainage ServicesRight-of-Way may increase futurerepair costs.

supporting level. Sanitary utility rate increasesince 2000. Customers continue to expect muminimal cost increases.

4.4.3 Environmental Protection

Customers are well informed regarding environdemanding more environmental protection, reand costs. As the environmental awareness ofexpectations may exceed the ability of Drainaexpectations. Drainage Services continues to ethe Approval-to-Operate. Drainage Services costakeholder issues raised by the River Water QNorth Saskatchewan River Watershed Alliance.

4.4.4 Infrastructure Maintenance and Re

As the sewerage and drainage infrastructure agstorm and sanitary sewers failing. The Office completed a risk assessment, and it was notedfunding for sewer service connections in the 20All costs for sewer connection upgrading are fibudget. There may be a concern that the propsufficient to meet the regulatory needs of the

4.4.5 Right-of-Way Management

Currently, there are numerous locations of inteconstruction of multiple utilities. The failure

damage to the other utilities and possible incrServices. This may result in higher future costThis concern is heightened for new utility operof-way.


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More public awareness andeducation regarding the role ofDrainage Services is required.

There are limited major drainageroutes in existing areas resulting in ahigher risk of flooding.

Deep sewer tunnels and pumpstations have the potential to createperiodic odour problems.

4.4.6 Communications

There is a lack of general public awareness of treatment of sewerage and drainage. The minout-of-sight, out-of-mind. There is a lack ofminimize environmental impacts of personal athe need to pay for drainage costs.

4.4.7 Level of Service

The level of storm servicing in existing areas isand 1:5 year design with limited major systemnewly developed area there is a major system event. There is a resulting higher risk of flood

4.4.8 Odour Control

There is a growing public concern with regards

problems from areas such as deep sewer tunneperception is that sewer odour is a potential haesthetic issue. Generally, there is a lack of poverall functioning of the sewerage system, thmitigating odour problems, and the health imp

In addition to public concerns, there are curreair quality from wastewater. Environment Canthe amount of hydrogen sulfide that can be reCurrently, the Gold Bar Wastewater Treatmenareas of high impact on air quality. Environme

legislation that would require 100% air quality control air quality will be sought through new


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The Sanitary Servicing Strategy wasdeveloped to finance the high costof major sanitary trunks.

The Sanitary Servicing Strategy Fundpools the resources of the Cityssanitary utility, developers, andbuilders to finance the constructionof major sanitary trunks.

The Sanitary Servicing Strategy Fundis administered by the Managementand Operational Committees,comprised of representatives fromDrainage Services, Planning andDevelopment, and the UrbanDevelopment Institute.

5.0 STRATEGIES

Table 2, (appendices) Issues and Strategies Matribe addressed by one or more strategies as detaile(appendices) Strategy Progress, provides a snapsheach strategy.

5.1 Sanitary Servicing Strategy

5.1.1 Description

Approved by Council in July 1998 and with revJanuary 1, 1999, the Sanitary Servicing Strategplanning, financing, and constructing over $43sewers in the City over the next 75 years.

As shown in Figure 1 (appendices) there are th

North Edmonton Sanitary Trunk

South Edmonton Sanitary Sewer

West Edmonton Sanitary Sewer

Revenue for the Sanitary Servicing Strategy Fu

an annual fixed amount ($2.6 million) froUtility until 2014

Expansion Assessment from greenfield developer at Servicing Agreement stage

Sanitary Sewer Trunk Charge, paid by the

application stage

The principle feature of the Sanitary Servicingthe implementation to be development drivenconveyance tunnelling can be constructed andas storage facilities until such time as the dowthe treatment plant is complete. These inte


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Issues addressed by the SanitaryServicing Strategy:

Regional Servicing Industrial Land Development

Cost Minimization

store all flows during wet weather and are pum

sewerage system during dry weather, temporainfrastructure without overloading it.

The Sanitary Servicing Strategy will provide ke

development of a Regional Master Plan. Both Trunk and South Edmonton Sanitary Sewer are Capital Region Wastewater Treatment Plant. Edmonton Sanitary Sewer is planned to acceptto the south of the City. It is expected that wAgreement, the Alberta Capital Region Wasteweventually become a partner in the Sanitary Se

5.1.2 Issues Addressed

The Sanitary Servicing Strategy was developed

of financing large off-site sanitary sewers requthe strategy combines with other strategies tobelow:

Regional Servicing (issue 2.1)

Industrial Land Development (issue 2.2)

Cost Minimization (issue 4.2)

Environmental Protection (issue 4.3)

The Combined Sewer OverflowControl Strategy will mitigate theenvironmental impacts ofEdmontons combined sewer system.

5.2 Combined Sewer Overflow Control S

5.2.1 Description

Approved by Council in March 2000, the purposCombined Sewer Overflow Control Strategy is timpacts of the Citys combined sewer system. involves the construction of capital works to rerunoff and sewage to the North Saskatchewan


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The strategy was developed over afive-year time frame with theassistance of consultants, the public,and various stakeholder groups.

The strategy includes the followingcomponents:

Early Action Control Plan Gold Bar Wastewater Treatment

Plant upgrades

Tunnel conveyance upgrades

Modifications to weirs

Underground storage

Opportunistic sewer separation

Issues addressed by the CombinedSewer Overflow Control Strategy:

The components of the Combined Sewer Overf

Early Action Control Plan This componexisting sewer system. A main componePlan involves the mobilization of in-line Real Time Control of moveable gates. solids and floatables controls, roof leadeweather flow management strategy for tmonitoring network upgrades, and impro

Gold Bar Wastewater Treatment Plant Uinvolves increasing the plants capacity tfor excess flow during wet weather. Spethe provision of enhanced primary treatmcommon wet weather flows and floatableweather flows.

Tunnel Conveyance Upgrades Additionwill allow more flow to reach the plant dwill involve two new sewer tunnels: one combined sewer overflow site to the Souother involving a third pipe crossing the combined sewer overflow site.

Modifications to Existing Weirs Weirs aoverflow sites will be modified to retain reducing the frequency and volume of di

Underground Storage A 3000 m3off-lin

constructed at the Strathearn Combined will capture combined sewer overflow fosewer system and treatment at the plant

Opportunistic Sewer Separation This wof separate sanitary sewers and storm seon an opportunistic basis. Opportunitiesrenewal programs or other sewer constru

Sensor

Data Recorder


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Total Loadings

Wet Weather Disinfection

Sewer Separation

Enhanced Primary Treatment


Schematic of monitor device

A key commitment of theInterconnection Control Strategy is

stormwater runoff can be redirected awasystem into a nearby storm sewer systemcost to the project.


The Combined Sewer Overflow Control Strategthe concern of bacteria loadings from the sewduring rainfall events. In addition, the strategstrategies to address the following issues:

Total Loadings (issue 1.1)

Wet Weather Disinfection (issue 1.4)

Sewer Separation (issue 1.5)

Enhanced Primary Treatment (issue 3.1)


5.3 Interconnection Control Strategy5.3.1. Description

In May 1995, the City of Edmontons Approval-following clause:The approval holder shall develop: (b) an Iand Control Strategy to minimize the contaminsanitary sewage and an implementation scheduinterconnections by June 1, 2000

In fulfilment of this clause, the Interconnectio

submitted to Alberta Environment in March 19Interconnection Control Strategy is perpetual mall unmitigated interconnections. This consistmaintenance of data, evaluation, monitoring, mitigation.


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perpetual monitoring and assessmentfor all unmitigated interconnections.

Issues addressed by theInterconnection Control Strategy:

Stormwater Quality Enhancement

Sewer Separation

Environmental Management


0

50

100

150

200

250

300

350

1900

1910

1920

1930

1940

1950

1960

1970

1980

1 9 9 0

Year of Const ruct ion

No.ofInterconnections

To date, 384 interconnections have been identbeen closed. The remaining open interconnecevery year more are closed based on analysis o

system hydraulics. The ultimate goal for the IStrategy is to eliminate, or mitigate, all intercEdmonton.

5.3.2. Issues Addressed

This strategy in conjunction with other strategfollowing issues:

Stormwater Quality Enhancement (issue

Sewer Separation (issue 1.5)

Environmental Management (issue 1.6)


5.4 Land Drainage Servicing Strategy

5.4.1 Description

The Land Drainage Servicing Strategy will provworks required to solve existing problems in de


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The Land Drainage ServicingStrategywill identify works required for bothexisting and future developed areas,focusing on the industrial lands in

the southeast.

A key feature of the Land DrainageServicing Strategy will be the timingof contributions from both City andprivate developers.

to provide for the development of new areas; the required infrastructure can be built in an o

Many of the older residential areas of the City only for conveyance. Without design considerathese areas occasionally experience flooding. measures have been identified and others requundeveloped or partially developed areas havelack of funding and/or long-term planning. Intissues in old combined sewer areas. The indushave severe drainage limitations that require wproceed.

This strategy will identify concept plans for stoand new developments. Remedial concepts toacceptable standards will be developed and th

plans for developing areas will be reviewed, ordevelopment can occur in an orderly fashion.

Special attention will be paid to the industrial develop effective plans. This area has restrictbe addressed if flooding and erosion problems also be directed to deal with developers concecosts of storm sewer servicing.

A major component of the strategy will be to dplan that will address the timing of contributioprivate developers. New development in the Cway. This is largely accomplished through restareas and having large properties construct stofacilities.

There are existing stormwater concerns in manof the City as well as in partially developed indfinance improvements is required.


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Issues addressed are:


Industrial Land Development

Land Development Requirements

Retention of Wetlands

Land Drainage Financing

Cost Minimization

Infrastructure Maintenance andRehabilitation

Level of Service

The Stormwater Quality Strategy willinclude Best Management Practicesand wetlands or wet ponds at end-of-pipe.

Issues addressed by the Stormwater

Quality Strategy: Total Loadings


New Water Quality Parameters

Land Development Requirements

Retention of Wetlands



This strategy in conjunction with other strategfollowing issues:


Industrial Land Development (issue 2.2) Land Development Requirements (issue 2

Wetlands Retention (issue 2.4)

Land Drainage Financing (issue 4.1)


Infrastructure Maintenance and Rehabilit

Level of Service (issue 4.7)

5.5 Stormwater Quality Strategy

5.5.1 Description

The development of a Stormwater Quality Straquality impacts of the third major source of coeffluent and combined sewer overflow) to the The strategy will include measures on how to istormwater runoff from new developments andevelopments.

The City has four major storm basins that contthe total annual runoff: Kennedale, 30th AvenAddressing the water quality from these systemstep towards controlling stormwater discharge

Methods that have been tried to date include boil/water separator.

For newer developments, Best Management Prcontrols and also wetlands or wet ponds at endexisting areas, imaginative solutions are needelands are not serviced through lakes, but insteNorth Saskatchewan River.


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The Upgrading Strategy is aimed atimproving the sewer capacities oftrunk and transmission lines in orderto:

reduce basement flooding

reduce street flooding

remove system constrictions

Drainage Services, in cooperationwith stakeholders, will develop along-range upgrading plan that linksto the Rehabilitation Strategy (5.7)


This strategy, in conjunction with others will hissues:



New Water Quality Parameters (issue 1.3

Land Development Requirements (issue 2

Retention of Wetlands (issue 2.4)


5.6 Transmission System Upgrading Strat

5.6.1 Description

The purpose of this Strategy is to upgrade the sanitary, combined and storm transmission/truan acceptable level of service for drainage systrunk sewer capacity is needed in some locatioflooding, reduce street flooding, convey flows higher density redevelopments, convey wet wefacilities, and remove system constrictions.

Strategy development is scheduled for the yeatrunk sewers will be assessed to determine theall sanitary sewers 375 mm in diameter and gr1200 mm and greater, and all storm sewers 12

Interceptor sewer capacities will also be assesfactor in developing this strategy will be in theanalysis. New ways will be explored to develosuitable for trunk system analysis.

System performance for both current and futuTrunk sewer upgrading criteria will be developupgrading alternatives. A long-range upgradin


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The Rehabilitation Strategy isrequired to develop structure andfocus to a priority plan for therehabilitation and replacement ofaging sewers.

including an implementation schedule and finawith interested stakeholders. Linkage will be developed for upgrading needs and rehabilitatthe Infrastructure Rehabilitation Strategy (5.6

5.6.2 Issues AddressedThis strategy in conjunction with others, will hissues:

Land Use Intensification (issue 2.5)

Level of Service (issue 4.7)

5.7 Infrastructure Rehabilitation Strateg

5.7.1 Description

According to the Office of the Infrastructure, iinfrastructure as a whole, was reported to be clife. The total value of the Citys infrastructurwhich Drainage Services comprises 45%, or $8.

In 2002 the average age of the sanitary systemsystem 29 years, and the combined system 54 used for sewer pipe replacement is 75 years. rehabilitation and replacement of these sewerconcern. The percentage of sewer pipe rated i6% for the sanitary system, 2% for the storm sycombined system.

The City requires tools and direction for inspecpriorities for replacement and rehabilitation, aexpenditures for this purpose. The goals of thorganized and knowledge-based approach to threplacement of sewers.


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Strategy components will include:

Closed circuit televisioninspections

Evaluation of PRISM model

Review of data collection andstorage information

Evaluation of financial models

Development of neighbourhoodpriority plan.

In the past, a number of initiatives have takenrehabilitation and replacement needs for City extension of these efforts and will build on thestrategy will also combine and integrate thesestructure and focus in meeting sewer rehabilit

This strategy has a number of existing compondeveloped as a result of recommendations fromPriorities Plan. The components are as follows

conduct closed circuit television inspectilimited data for the PRISM model (a modsewer pipers based its history and enviroincorporate into an updated PRISM mode

evaluate the PRISM model and provide codetermine the merits of including additio

review data collection/storage of inspecand provide recommendations for improv

evaluate and recommend financial forec

develop a priority neighbourhood renewaneighbourhood boundaries

incorporate rehabilitation funding requirCapital Priorities Plan

Linkage will be required between plans develoand upgrading requirements defined in the Tra

Strategy (5.5).5.7.2 Issues Addressed

This strategy will address the following issues:

Information Management (issue 3.3)

Infrastructure Maintenance (issue 4.4)


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The Wastewater Treatment MasterPlan provides the existing processcapacities, projected flows, and anoverview of the upgrades,modifications, and expansion that

may be required during the next 20years.

Gold Bar Wastewater TreatmentPlant

5.8 Wastewater Treatment Master Plan

5.8.1 Description

The Wastewater Treatment Master Plan servesthe Gold Bar Wastewater Treatment Plant for the existing process capacities, projected flowoverview of the upgrades, modifications, and erequired during this period. The Plan identifiefor these projects as related to several factorsage and integrity of equipment and structure, development of new state-of the-art technologunits, and changes in regulatory standards.

During the next 10-year period, from 2001 to 2flow is estimated to increase from 290 ML/d to

the present plant capacity of 310 ML/d in 2006treatment capacity would be required by that treat combined sewer overflows at the Gold BaPlant, new facilities for treating this additionaduring the next 10-year period. Present plans Overflows that exceed the present capacity ofTreatment Plant using enhanced primary treattechnologies.

The development of a Recycled Water Distribuinitiative to improve water quality in the North

Drainage Services anticipates that industrial anthe expansion of this distribution network. Thalready expressed interest in using the effluentheir processes. Community Services DepartmManagement Branch have expressed an intereswell.


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Benefits of an EnvironmentalManagement System can include:

improved environmentalperformance

improved compliance leading to

reduced liability

efficient allocation of resources

reduced costs and increasedcompetitive advantage

improved public image andtrust.


The Wastewater Treatment Master Plan will puworks that will address the following issues:


New Water Quality Parameters (issue 1.3

Wet Weather Disinfection (issue 1.4)

Odour Control (issue 1.8)

Enhanced Primary Treatment (issue 3.1)

Membrane Filtration Technologies (issue



5.9 Environmental Management System

5.9.1 Description

The purpose of an Environmental Managementset of procedures and policies that defines howits environmental affairs. An Environmental Ma commitment and a verifiable process to imprmanagement of environmental issues and ensuits management of impacts on the environmen

The model chosen by Drainage Services is the Standardization, series 14001. This is an interEnvironmental Management System model and

industry standard. The ISO 14001 Environmentrequires an organization to develop an environfor identifying environmental aspects and releobjectives and targets consistent with its envirmanagement programs, as well as mechanismsoperation, and perform regular system reviews


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Alberta Capital Region WastewaterTreatment Plant

A Regional Master Agreement willcreate an efficient, cost-effective,and equitable wastewatertreatment, transmission, and sludgedisposal system for the EdmontonRegion.

Benefits of an Environmental Management Syst

improved environmental performance

improved compliance leading to reduced

efficient allocation of resources

reduced costs and increased competitive improved public image and trust


Implementing an Environmental Management Sprocess to address the following issues:


Regional Regulations (issue 1.7)

Environmental Protection (issues 4.3)

5.10 Regional Wastewater Servicing Strate

5.10.1 Description

The Regional Servicing Strategy will address imand long-term (50 years) technical and financitransmission and treatment. This strategy wilRegional Master Agreement between the City aWastewater Commission.

From January 2000 to October 2002 the City anWastewater Commission held a series of worksservicing issues and determine strategies to re

Regional Servicing Co-ordinating Committee welected representatives and administration froordinating Committee concluded that in order financial basis to the Master Agreement negotiServicing Planning Study is required.


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Major agreements between theRegion and the City include theSwap Agreement and the South EastRegional Trunk Sewer Agreement.

The Depreciation Strategy will:

define a rate base for theSanitary Utility

address asset value

supplement cost of service study

address rehabilitation priorities

Through a series of workshops and technical anWastewater Servicing Planning Study will devesolutions that integrate short and long term plprovide a financial model that is equitable to acomplete, the study will form the basis for negAgreement. This Master Agreement will superagreements and provide for the long-term finaof the treatment and transmission of wastewaRegion.

The existing agreements consist of two major Agreement and the South East Regional Sewer minor agreements. The Swap Agreement runs exchange of treatment of wastewater flows beRegion Wastewater Commission and the City.

Trunk Agreement, on one-year extensions, allomaximum wastewater flow to the Alberta CapiCommission owned South East Regional Sewer


The Regional Servicing Strategy will help to ad


Regional Regulations (issue 1.7)

Regional Servicing (issue 2.1)

5.11 Depreciation Strategy

5.11.1 Description

The Depreciation Strategy has been developedbase for the Sanitary Utility and Land Drainagevalue and costing information for Drainage Serinformation will be used in Cost of Service Sturehabilitation priorities, demonstrating asset s


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A key component and first priority ofthe strategy is to develop an assetaccounting system.

Drainage Services currently has all asset historaccounts. However, asset retirements are notdifficult to determine the historical cost, deprinformation of the assets.

The Depreciation Strategy consists of the follo

Capital asset accounting system

Embedded plant conversion

Depreciation study

Decommissioning study

Valuation study

The development of the Capital Asset Accountand is necessary to move forward on asset tracconversion will require the development of unhistorical costs of embedded assets. The bene

Strategy are: determination of a rate base

asset information for cost of service stud

Adherence to Public Service Accounting and future)

asset information for the Office of Infras

asset information for rehabilitation initia

comparability to private utilities.

The Depreciation Strategy was initiated in 200completion in 2005. The main focus of the StrSystem, which is required before the other comimplemented.


The Depreciation Strategy is required to addreestablish the long-term financial requirementsorder to remain viable. This is addressed in Se


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A Drainage Information ManagementSystems Strategy needs to bedeveloped for all drainage databasesystems.

addition, the Depreciation Strategy will help to


Land Drainage Financing (issue 4.1)


Infrastructure Maintenance and Rehabilit5.12 Drainage Information Management Sy

5.12.1 Description

The Drainage Inventory System (DRAINS) is a redescribing the drainage collection systems. Liand the Citys graphics system (microstation) hfuture linkages planned to Geographic Informa(operational maintenance management systemControl and Data Acquisition) systems, a repos

spatial and temporal information describing DrFuture steps are required to establish a data winformation describing the performance of drainclude consolidation of all SCADA informationthe eventual linkage with water quality informInformation Management System (LIMS) databa

In order to proceed with this, a drainage informstrategy needs to be developed for all drainag

5.12.2 Issues addressed:

An information management system plan will a


Information Data Management (issue 3.3)

Infrastructure Maintenance and Rehabilita


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Odour control facility

The Odour Control Strategy willconsist of six (6) interrelated

components: monitor

analyze

prioritize

mitigate

expert review

communication

5.13 Odour Control Strategy

5.13.1Description

An odour control strategy is required to mitigagases from the City of Edmonton sewerage sysacceptance to odour control measures

.

The strategy will consist of six (6) interrelated

Monitor The monitoring component will be athat collects all data required to understand thfrom the sewer system, as well as the release

Analyze The collected data will be analyzed of sewer odour releases, including the determidentification of hot spots for odour releases aassessment of toxicological concerns, and a litknown/suspected health effects of sewer gas

.

Prioritize The city-wide hot spots for odour chighest concentration of issues will be prioritizstrategies. Conceptual level mitigation strateimplications for the Capital Priorities Plan and

Mitigate At each hot spot mitigate the seweridentification of local odour, a search of mitigdetermination of mitigation measures with thebased on economics, technical viability and co

finally the design and construction of mitigatio

Expert Review An external expert review panprovide guidance and credibility to the Odour

Communication Throughout the Odour Controcommunication will be essential to obtain buyincluding communication packages to educate


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Issues identified in the MasterDrainage Plan could have an impacton utility rates.

system, odour, health effects and mitigation mlocal community liaison groups to deal with sit


The Odour Control Strategy, in conjunction wit

Master Plan, will address Odour Control (issue

6.0 STRATEGY INTEGRATION AND IM

6.1 Financial Plan

Table 4 (appendices) outlines Drainage Serviceoperating budget. The assumption for revenuerate only for both the Land Drainage and Sanitestimate for inflation varies between 2.0 per c

The issues identified in this Drainage Master Pl

the 10-year budget. Drainage Services presentutility rate increases at or below inflation. Thhowever, may require rate increases above infestimated $80 million funding gap over the nexof the issues identified could create funding garegulations are introduced by Alberta Environmthat substantially change the current operatinServices.

The Sanitary Utility is currently reviewing its fand operating requirements, and the impact o

the utility and the rate impact on customers. the goal is to develop a dividend and borrowinreview and approval.

The implementation of the Land Drainage Utiliallow Drainage Services to make a significant caddressing the gap that currently exists for the

Membrane Filtration


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Issues that could create fundingshortfalls include:

Total Loadings

Membrane Filtration

Industrial Land Development

Communications strategies andaction plans will be developed asrequired to support the execution of

the operational strategies identifiedin this plan.

Communications planning links tobusiness planning to ensure businessstrategies, goals and objectives driveall communications strategies andtactics.

Issues that could potentially create funding shinclude:

Total Loadings The cost of addressing the issunknown at this point as Alberta Environment criteria for measurement.

Membrane Filtration This is a new technologby Drainage Services.

Industrial Land Development A strategy for management works in industrial areas is not costill unknown.

6.2 Communications Planning

Communications planning is essential for maxiDrainage Master Plan. As such, communication

will be developed as required to support the estrategies identified in this plan.

Communications planning will also seek, whereconsolidate communications activities that supto ensure consistent messaging and greater im

The following criteria is used to prioritize idencommunications support:

Does the strategy have an environmental, safety implication?

Does the strategy affect citizen support an Does the strategy require stakeholder acce

Does the strategy present an opportunity f

Does the strategy garner media interest an

Does the strategy require political support


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Strategic communications planning links to busbusiness strategies, goals, and objectives driveand tactics.

Welldefined communications also outlines pro

awareness, seek understanding, solicit input, astakeholders and various other public about Drlong term maintenance, upgrading, and develorequirements.

Such an approach ultimately builds support anoverall mandate which is to be recognized amanagement and in the utilization of best pracdelivery.

6.3 Business Plans

Drainage Services prepares an annual business Capital Priorities Plan development. This updManagement and Public Works Departments aallows for integration into the Citys corporatesupport this process, Drainage Services has a mbusiness plan. The latest Drainage Services cothe 2000 to 2002 document, completed in 1999

This Drainage Master Plan will be implementedDrainage Services 3-year business plans. The completed in 2003 and will set the direction fo

6.4 Drainage Master Plan Update

The original Drainage Master Plan was developand approved by Council in January 1991. TheMaster Plan was developed from 2001 to early Drainage Services for the next 10 years. Due tdevelopment of this plan, the end product is a


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the future direction of Drainage Services. Thisa major substantial review prior to the 10-yeanew issues are brought forth that were not ide


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APPENDICES


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TABLE 1

DRAINAGE MASTER PLAN ISSUES

Regulatory Growth Technology

Total Loadings Regional Servicing Enhanced PrimaryTreatment

La

Stormwater QualityEnhancement

Industrial LandDevelopment

Membrane FiltrationTechnologies

C

New Water QualityParameters

Land DevelopmentRequirements

Information Management E

Wet Weather Disinfection Retention of Wetlands In&

Sewer Separation Land Use Intensification R

Environmental Management C

Regional Regulations Le

O


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TABLE 2

DRAINAGE MASTER PLAN ISSUES AND STRATEGIES MATR

Strategies

Issues

SanitaryServicin

gStrategy

C.S.O.ControlStrategy

Inter-connection

ControlStrategy

LandDrainageServicin

gStrategy

StormwaterQualityStrategy

TransmissionUpgradingStrategy

InfrastructureRehabilitation

Strategy

WastewaterTreatmentMaster Plan

Environmental Management

System

1.1 Total Loadings

1.2 StormwaterQualityEnhancement

1.3 New Water QualityParameters

1.4 Wet Weather Disinfection

1.5 Sewer Separation

1.6 Environmental

Management

1.7 Regional Regulations

2.1 Regional Servicing

2.2 Industrial Land

Development

2.3 Land Development

Requirements

2.4 Wetland Retention

2.5 Land Use Intensification

3.1 Enhanced Primary

Treatment

3.2 Membranes

3.3 Information DataManagement

4.1 Land Drainage Financing

4.2 Cost Minimization

4.3 Environmental Protection

4.4 InfrastructureMaintenance &Rehabilitation

4.5 Right-of-way Management

4.6 Communication

4.7 Level of Service

4.8 Odour Control


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TABLE 3

STRATEGY PROGRESS

St r at egiesData

CollectionSystemsAnalysis

StrategyDevelopment

ImplementationUnderway

StrategyComplete

Sanitary Servicing Strategy ______ _____ _______ __ _ _ _ 2050

Combined Sewer OverflowControl Strategy

______ _____ _______ __ _ _ _ 2016

Interconnection ControlStrategy

______ _____ _______ __ _ _ _ 2016

Land Drainage ServicingStrategy

______ _____ _______ __ _ _ _

Stormwater Quality Strategy ___

Transmission UpgradingStrategy

__ 2012

Infrastructure RehabilitationStrategy

_

Wastewater TreatmentMaster Plan

______ _____ _______ __ _ _ _ 2022

Environmental ManagementSystem

______ __ __

Regional WastewaterServicing Strategy __ __ _Depreciation Strategy ______ __ _ _ _ ContinuousInformation SystemsManagement Plan

_

Odour Control Strategy _ _ _ _ _ _ _ _

Note:_______ Completed __ _ _ _ Underway


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TABLE 4

DRAINAGE SERVICES BUDGET PLAN($000)

COMBINED UTILITIES

2003 2004 2005 2006 Operating Expenses 72,884 73,803 76,439 81,265

Capital Program:

Funded 46,108 71,392 71,401 50,348

Unfunded 659 3,335 4,138 8,839

TOTAL CAPITAL 46,767 74,727 75,539 59,187

SANITARY UTILITY

2003 2004 2005 2006

Operating Expenses 63,669 65,270 67,173 71,295

Capital Program:

Funded 32,631 59,831 59,522 40,886

Unfunded 123 101 904 904

TOTAL CAPITAL 32,754 59,932 60,426 41,790

LAND DRAINAGE UTILITY

2003 2004 2005 2006

Operating Expenses 9,215 8,533 9,266 9,970

Capital Program:

Funded 13,477 11,561 11,879 9,462

Unfunded 536 3,234 3,234 7,935

TOTAL CAPITAL 14,013 14,795 15,113 17,397


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TABLE 5

SUMMARY OF SEWER STATISTICS

2002 2001 2000 1999 1998 1997

SEWER MAIN LENGTHS (KM)

Storm 1,965 1,942 1,915 1,891 1,867 1,850

Sanitary 1,793 1,774 1,741 1,716 1,691 1,674

Combined 936 936 935 935 934 934

Foundation Drain 8 7 4 2

TOTAL 4,702 4,659 4,595 4,544 4,492 4,459

Catchbasin Lead Lengths 783 778 772 768 762 757

STRUCTURES (N0.)

Manholes 58,814 58,330 57,632 56,947 56,097 55,662

Catchbasin Manholes 8,394 8,223 8,157 8,067 8,8045 8,042 Catchbasins 47,433 46,954 46,522 45,920 45,527 45,185

Pumpwells 66 65 65 63 61 61

Wet Stormwater ManagementFacilities

48 44 42 23 29 29

Dry Stormwater ManagementFacilities

53 51 47 54 40 34

Peak Storage Tanks 32 32 32 32 32 32


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