I I Reduction Strategy Annual Report 2012

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Table of Contents

1. Background

1.1. South

East

Collector

Trunk

Sewer

Conditions

of

Approval ...........................3

1.2. Purpose and Need of the Annual Report......................................................4

1.3. Comments and Feedback Received..............................................................4

2. Key Program Activities and 2011 Accomplishments

2.1. Inflow and Infiltration Reduction Strategy...................................................5

2.1.1. Summary of program activities and accomplishments ....................... 5

2.1.2. Pilot projects ....................................................................................... 12

2.1.3. Reporting of inflow and infiltration reduction to date....................... 13

2.1.4. Local municipal participation and collaboration ................................ 13

2.2. Long Term

Water

Conservation

Strategy....................................................15

2.2.1. Summary of program activities and accomplishments ..................... 15

2.2.2. Reporting of water saved to date ....................................................... 24

2.2.3. Local municipal participation and collaboration – billing data........... 24

2.2.4. Updated water demand by sector...................................................... 24

2.2.5. Updated Long Term Water Strategy targets ...................................... 26

3. 2012 Planned Deliverables and Outlook

3.1. Inflow and Infiltration Reduction Strategy ................................................27

3.1.1. Summary of 2012 Goals and Targets.................................................. 27

3.1.2. Mitigation plans ................................................................................. 30

3.2. Long Term Water Conservation Strategy ...................................................33

3.2.1. Summary of 2012 Goals and Targets.................................................. 33

3.2.2. Revised tactics and targets ................................................................ 38

3.2.3. Mitigation plans ..................................................................................38

List of Tables

Table 2.1 Inflow Infiltration Reduction Strategy 2011 Program Activities and

Accomplishments

Table 2.2 Long Term Water Conservation Strategy 2011 Key Deliverables and

Accomplishments Table 2.3 2010 Non‐Revenue Water by Municipality

Table 2.4 2010 Infrastructure Leakage Index by Municipality

Table 2.5 2010 Water Demand by Sector

Table 3.1 Inflow Infiltration Reduction Strategy 2012 Goals

Table 3.2 Long Term Water Conservation Strategy 2012 Goals and Targets



Long Term Water Conservation Strategy and Inflow and Infiltration Strategy 2

Annual Report dated March 31, 2012

Appendices

Appendix A: Intra Basin Transfer Summary 2011 ...................................................... 40

Appendix B: Quantified Catchments for Inflow and

Infiltration

Reduction............................................................................. 42

Appendix C: Inflow and Infiltration Reduction Program

Annual Report to Council....................................................................... 59

Appendix D: Sanitary Sewer System Inspection, Testing

and Acceptance Guideline ..................................................................... 63

Appendix E: Long Term Water Conservation Strategy

Annual Report to Council....................................................................... 86





1. Background

1.1. Southeast Collector Trunk Sewer Conditions of Approval

The Regional

Municipality

of

York

is

currently

constructing

the

Southeast

Collector

Trunk

Sewer (SEC). The SEC is a 15 kilometre, tunnelled sanitary trunk sewer that starts in the

community of Box Grove in the Town of Markham and ends near the intersection of

Finch Avenue and Valley Farm Road in the City of Pickering. This capital project is vital to

service provincially‐approved growth to the year 2031. On March 31, 2010, the Minister

of the Environment of Ontario (MOE) approved the Individual Environmental

Assessment (IEA) for the project and added a number of stringent conditions of

approval.

Section 8 of the Minister’s conditions refers to a Water Efficiency and Inflow and

Infiltration Reduction Monitoring Strategy . The conditions pertinent to this section and

their requirements

are

as

follows:

• Condition 8.1 requires that a Water Conservation and Efficiency Strategy for water

and wastewater flows into the SEC be prepared.

• Condition 8.2 states specifically that York Region is required to develop an Inflow and

Infiltration Reduction Strategy (the Strategy), which “shall include a program for the

reduction of inflow and infiltration by The Regional Municipality of York to the Southeast

Collector (SEC) Trunk Sewer from its and its lower tier municipalities’ sewage systems.

This program shall include reduction priorities, targets, timelines, tactics and initiatives,

and the associated costs to implement these.”

• Condition

8.4

requires

York

Region

to

complete

a review

of

best

‐in

‐class

infiltration

and inflow (I/I) reduction programs, initiatives, strategies, and tactics adopted by other

jurisdictions.

York Region has ongoing programs in water conservation and I/I reduction that were

relied upon as mitigating measures to support developing the new SEC. Water

conservation and reducing I/I have been important parts of the Region’s servicing

considerations since the first water and wastewater master plan was developed in 1997.

The York Durham Sewage System (YDSS) Master Plan, as subsequently updated,

specifically identified water conservation and extraneous flow reduction as a significant

design consideration for all YDSS projects.

Although advances in water conservation, water use efficiency, and I/I reduction

measures have been significant, as detailed in subsequent sections, a considerable

amount of work is required to continue to meet the Minister’s conditions. In summary,

the approval of the SEC is subject to stringent conditions based upon the following

overall directions:





1. A compliance monitoring and reporting program is to be established to document

that the project will be undertaken and will continue to be operated in

conformance with the commitments made by the Region in the SEC IEA.

2. York Region is required to establish a stakeholder advisory committee, consisting

of representatives

from

local

and

Regional

municipalities,

agencies,

environmental

groups, and residents within three months of approval of the SEC IEA to enable

ongoing liaison between the community and the Region during the construction

period. The Southeast Collector Advisory Committee (SeCAC) was formed in April

2010 to meet this requirement.

3. Review of best‐in‐class water conservation and efficiency measures and

development of I/I reduction strategies are to be completed in conjunction with

York Region and the local municipalities. It is to be independently peer reviewed,

presented to the advisory committee, submitted to the MOE, implemented,

monitored and reported on annually to the MOE.

4. A performance management plan will be developed and submitted to the SeCAC

and the MOE to document performance targets for improvements to water

conservation, efficiency, and reductions in I/I.

1.2.1. Purpose and Need of the Annual Report

The purpose of this report is to provide the first annual update on progress made

towards implementation of the Long Term Water Conservation Strategy (LTWCS) and

the Inflow and Infiltration Reduction Strategy (I‐I Reduction Strategy). Where targets

have

not

been

met,

mitigation

plans

are

identified

to

implement

enhanced

initiatives

in

order to meet the targets, including the resources available. This fulfills the

requirements as outlined in the conditions of approval for the Southeast Collector Trunk

Sewer Individual Environmental Assessment.

1.3.2. Comments and Feedback Received

On October 14, 2011, the Ministry of the Environment provided comments on the Long

Term Water Conservation Strategy and Inflow and Infiltration Reduction Strategy,

submitted on March 31, 2011. Comments received from the Ministry indicate York

Region demonstrated significant leadership in the creation of the Strategy. While some

technical issues and clarification remain, which can adequately be address through

future meetings between Ministry and Regional staff, the Strategy is a strong step

forward in supporting the Region’s long term water conservation and efficiency efforts.

The Ministry provided notification of satisfaction that the Strategy met the intent of

Condition 8. No additional feedback on the contents of the Strategy has been received.





2. Key Program Activities and 2011 Accomplishments

2.1. Inflow and Infiltration Reduction Strategy

2.1.1. Summary of

program

activities

and

accomplishments

This section outlines the Inflow and Infiltration Reduction Program activities and

accomplishments through 2011, see Table 2.1 for details. Highlights of 2011 include:

• In February and March 2011, Regional and local Councils approved the Inflow and

Infiltration Reduction Strategy

• The all‐pipe sewer model for the York Durham Sewage System has been developed

• Sewer inspection and assessment programs are currently underway on both

Regional and municipal levels

• Development‐funded

investigation

and

remediation

efforts

are

tied

to

advanced

wastewater servicing allocation to promote inflow and infiltration reduction efforts;

this opportunity has been provided to all Regional local municipalities.

• Through the Region’s Infrastructure Management Program, inflow and infiltration,

as a result of deterioration, is identified within Regional trunk sewers and

remediation works are planned

• The York Region Sanitary Sewer Inspection, Testing and Acceptance Guidelines (see

Appendix D) were finalized and distributed to the nine local municipalities in

October 2011; the next phase will address improving the standards for municipal

development including subdivision agreements and site plan approvals





Goals/Objectives Status Review flow analysis software applications to ensureexisting Regional software can replicate dry/wet weatheranalysis procedures developed in recent reduction analysisefforts.

• Flow analysis software applications have been reviewed and the alin Infoworks is used to replicate wet/dry weather flows. See previou

Contingent upon execution of I/I agreement with localmunicipalities and developer groups, validate flow monitoringand analysis findings of developer funded initiatives andany pre‐post mitigation.

• Agreements have been approved between York Region, Towns of Richmond Hill and City of Vaughan and representative developer g

• Catchments are being analyzed• Work has been identified in some areas• Potential reductions will be calculated.• Various rehab works are underway.• Total reductions will be monitored through 2012-2013.• This opportunity has been provided to all Regional municipalities.

Program Component: Investigate and MDevelop Sanitary Sewer Evaluation Studies (SSES)inspection program and develop budgetary costing for anypriority areas from the 40, 2009‐2010 flow monitoringlocations.

• Process in place to perform flow data analysis in-house.• Data review and recommendations will occur in parallel with Region

pilots in order to leverage newly established best practices.

Commence remediation at nine priority catchment areasincluding 12 kilometre mainline, 162 point and surface

repairs, and rehabilitation of 444 manholes.

• Total of eight catchments being remediated (9th was removed from

• Two contracts released.•

Contract 1 has four catchments and is underway.• Contract 2 has four catchments and will start April 2012.





Goals/Objectives Status Establish remediation schedule for 2012‐2015 resulting fromcompleted investigation program.

• Local work is derived from inspection programs(CCTV data for 2011):− Vaughan 210 kilometres− Markham 132 kilometres− Newmarket 8.25 kilometres−

King 1.8 kilometres− Aurora 33 kilometres− Richmond Hill 130 kilometres

• Local municipality rehabilitation work in 2011 included:− Vaughan – 10 manholes relined− Whitchurch-Stouffville – 1.16 kilometres of sewer relined,

two manholes repaired− Markham – 1.22 kilometres of sewer relined− Newmarket – 1.76 kilometres of sewer relined,

five manholes repaired− Aurora – five kilometres of sewer relined,

20 manholes repaired/relined− Richmond Hill – two kilometres of sewer relined

• Regional CCTV inspection program for 2011 included

24.4 kilometres of trunk sewer.• Regional 2012 CCTV inspection program will inspect

25 kilometres of trunk sewer.• Inflow and infiltration within Regional trunk sewers has been identif

works are planned. Three major projects have started:− One relining project is under construction− Two rehabilitation projects are underway

• Approximately $45M is committed over the next 10 years for Regiorehabilitation across York Region’s entire system

• Local municipalities have started inspection and repair of lateral con− Aurora – 200 inspected− Whitchurch-Stouffville – four inspected and replaced− Newmarket - 80 inspected, 15 replaced− Vaughan - 477 inspected, 33 repaired− Richmond Hill – 177 inspected and repaired.

• Regional remediation schedule established.

• Local scheduling has been established and will be finalized through

• Audit program will further inform remediation schedules.





2.1.2. Pilot Projects

Remediation Pilots

A comprehensive Sanitary Sewer Evaluation Study (SSES) of sanitary sewers and manholes located within local municipal systems was completed in 2010. Remediation projects were

proposed for the eight projects categorized as the highest priority catchments in terms of

inflow and infiltration. The remediation will include relining of approximately 12 kilometres of

mainline sewer, 162 point and surface repairs and 375 manhole rehabilitations.

The main goals of this pilot effort are:

• Reduction or removal of inflow and infiltration generated in local municipal sewers

• Demonstrate the effectiveness of various inflow and infiltration reduction technologies

in municipal sewers

• Determine/delineate tributary

areas

to

the

Regional

conveyance

and

treatment

systems

• To generate data regarding unit costs and effectiveness of various reduction

technologies

The project was divided into two construction phases. Phase 1 includes rehabilitation work of

four catchments in Aurora, Newmarket (2) and Richmond Hill. Commencement of this phase

began in January 2012. Phase 2 includes rehabilitation work of four catchments in East

Gwillimbury, Georgina (2) and Whitchurch‐Stouffville. Commencement of this phase will

begin in Q2 2012. Completion of the project is expected by Q4 2012

Developer Funded

Pilots

In May 2011, the Region, Town of Markham and Upper Unionville Inc. signed a tri‐party

agreement for reducing inflow and infiltration within the Town of Markham. Upper Unionville

Inc. agreed to reduce inflow and infiltration within the municipality in exchange for advanced

wastewater servicing allocation to support a new residential development at the northeast

corner of Kennedy Road and Sixteenth Avenue. An implementation plan for inflow and

infiltration reduction was developed by Upper Unionville Inc. and reviewed by the Region and

Town. Remediation works are currently underway. The Region will determine eligible capacity

for assignment based on proven inflow and infiltration reduction through remedial work

performed by the developer and reviewed by the Region and Town.

Opportunities include:

• Developer funding of the project at no cost to the Region or the Town

• Quick commencement of work with readily available resources from the developer

• Acquiring project experience that can be used for other inflow and infiltration reduction

projects in the Region

• A reduction in inflow and infiltration and peak sewer flows





This opportunity has been provided to all Regional local municipalities and resolutions have

also been passed in the Towns of Aurora and Richmond Hill and the City of Vaughan to

participate in the program.

2.1.3 Reporting of inflow and infiltration reduction to date

The Inflow and Infiltration Reduction Strategy recommended a target flow volume reduction

at the Southeast Collector Trunk Sewer of 71 million litres (ML) within a 24‐hour period under

a 25‐year storm event, with approximately 40 ML to be achieved through inflow and

infiltration reduction and the balance through water conservation initiatives by 2031.

In order to accurately quantify inflow and infiltration reduction, it is essential to install flow

meters near

the

location

of

remediation

works

and

collect

data

before

and

after

construction

to carry out comparison analysis. Regional staff have been co‐ordinating with local municipal

staff to install flow meters at required locations for all new remediation projects including the

pilot projects noted in this report and carrying out analysis on projects as flow data becomes

available. To date, three catchments have completed pre and post construction flow data to

enable staff to quantify the inflow and infiltration reduction. There are another eight

catchments whereby reduction efforts have occurred from 2008 to 2011 however the post

monitoring to quantify volumes is not complete and will not be available until later in 2012.

The reduction measured to date represents 2.5 per cent (see Table 2.1) of the 20 year

requirement, but this is significant when considering that the Strategy was only finalized in

March of 2011 and approved by the Ministry of the Environment in October 2011. To see

reductions this early in the process is very promising. Also, given that the Strategy was only

endorsed by Regional and local councils in 2011, the first year of resource planning and

budgeting truly occurred for 2012. It is expected that the program will pick up significant

momentum in this first full year of implementation and further and greater reductions can be

expected for the future.

Additional details on each of the quantified catchments are provided in the Appendix.

2.1.4. Local municipal participation and collaboration

York Region and the local municipalities are working collaboratively to implement the various

activities and resource the role of their respective organizations to help support program

implementation and have committed to identifying and addressing the financial requirements

for the 20‐year horizon and the long term period beyond.





Local municipal staff has been involved in development of the Inflow and Infiltration

Reduction Strategy through participation in the Water and Wastewater Steering Committee.

Local municipal councils have endorsed the strategy to fulfill the conditions of approval for

the Southeast Collector Trunk Sewer Individual Environmental Assessment.

Local municipality participation also included (see Table 2.1 for additional details):

• Ongoing inspection programs

• Rehabilitation work for sanitary sewers and manholes

• Lateral inspection and repair

• Utilizing the York Region Sanitary Sewer Inspection, Testing and Acceptance Guidelines





2.2 Long Term Water Conservation Strategy

2.2.1. Summary

of

program

activities

and

accomplishments

There are seven major program components outlined it the LTWCS. Table 2.2 provides a

breakdown of 2011 targets, status and variance for the tactics associated with each

component.

Rebates and Other Financial Instruments

Overall participation in the rebate programs exceeded the 2011 target, due to the strong

popularity of the toilet rebate program among single‐family homeowners. The majority of

staff time, resources and program budget went into managing this highly successful program.

To avoid budget constraints (i.e. overspending) other rebates were not widely marketed. In

2012, a review

of

the

toilet

rebate

program

components

and

targets

will

be

conducted

and

a

focus on increasing participation in multi‐unit and ICI sector rebates and capacity buy back

programs will be introduced.

New Development

York Region has engaged the development industry and local municipal partners to review

and improve incentive programs for water efficiency in low and high density new

developments. East Gwillimbury is currently developing a pilot program that will provide

extra servicing allocation for low density housing built to sustainable standards. The Town of

Markham is requiring all new high rise developments to participate in York Region’s

Sustainable Development

through

LEED

program.

Additional

refinement

of

the

minimum

requirements for sustainable new development programs and research into implementation

incentives and monitoring protocols was initiated in 2011.

Governance and Administration

Detailed implementation planning and reporting processes for the strategy were initiated in

2011. Cost/benefit evaluations of existing water efficiency and conservation programs and

recommendations about improvements and new program directions to maximize return on

investment is underway. An updated methodology for analysis and reporting of water

demand and water savings was established in 2011. The process will be refined with

additional data and analysis tools in 2012.

To facilitate ongoing stakeholder input into the plan’s implementation, an advisory

committee comprised of representatives from the public, community and industry groups and

multi‐cultural and First Nations organizations was established. This group will act as a forum

for ongoing advice and feedback on new and existing water conservation and efficiency

programs and projects. They will also act as community ambassadors to encourage greater

engagement from the sectors they represent.





Policies and By‐laws

York Region began development of several policy tools to encourage adoption of water

conservation and efficiency technologies across all sectors. Research to support the

development of voluntary water efficiency and conservation guidelines for new industrial,

commercial and institutional facilities in the Region is underway. A review of the Region’s

existing sustainability incentive programs for new development was started in 2011. Staff

have also participated in provincial sessions reviewing building code updates to advocate for

the inclusion of water efficiency and water reuse.

Pilot and Demonstration Projects

Several innovative pilot projects were started in 2011. A front yard makeover project in

Richmond Hill will showcase water‐efficient landscape practices, rainwater harvesting and lot

level stormwater

management

on

two

residential

lots.

An

irrigation

audit

and

retrofit

pilot

program with multi‐unit and ICI properties also started in 2011. Funding was secured to

partner with a local builder, a municipality and Conservation Authority on an expedited

approvals process for new developments using low impact development practices.

Regional‐Municipal System

The International Water Audit (IWA) process was initiated in 2011. Collection of water

demand billing data from the nine lower tier municipalities proved to be more challenging

that anticipated due to privacy concerns and differing local systems for data management. All

required data has been collected and the analysis process is well underway with an expected

completion of the technical review in Q2 of 2012. This information will enable the calculation

of the Infrastructure Leakage Index (ILI) and determining consumption by sector.

A process for the ongoing collection of billing data has now been established and a database

will be constructed by the Region to house and analyse data going forward. Preliminary

analysis of 2010 data is complete. Once analysis of 2009 and 2011 data is complete, revised

targets for per capita demand will be calculated.

Marketing, Education and Outreach

York Region continued to offer its successful education and outreach programs, including free

landscape assessments, water efficient landscaping workshops and the York Children’s Water

Festival.

Some program

elements

will

be

reviewed

in

2012

as

they

may

be

reaching

market

saturation. Revamped options will be identified as an outcome of that review.

The Region also began exploring opportunities to partner with other delivery groups such as

conservation authorities to provide an education program to schools and other youth

organizations.





An overall marketing, education strategy will be developed to link to all program components

and support the implementation of the Long Term Water Conservation Strategy.





Table 2.2

Long Term Water Conservation Stra

2011 Key Deliverables and Accomplish

LegendExisting and Continuing ProgramsNew Programs


Goal

ProgramComponents

Tactics Sector 2011 Target

Rebates and Other Financial InstrumeFree water audits ICI 10 facilities Nine

pendImplementation of capacity buy-back ICI 1.5 facilities 0

Front-loading clothes washer installations ICI 120 10 re

HET Toilet rebate ICI 6,240 19 to





Pre-rinse spray valve for commercial kitchens (programhas reached market saturation)

ICI 30 comm. kitchens 0

Water efficient furnace humidifier Single familyresidential

1,000 57 hu

Subsidized rain barrels Single familyresidential

4,000 2,778

Front-loading clothes washer installations Multi familyresidential

150 0

WaterSense Toilet rebate Single andmulti familyresidential

12,000 29,7816,34houseight

New Development Uptake - Commitment by developers to adopt standard Single family

residentialFive per cent 0

Eastdeveadditfor lo

susta

Efficient NewDevelopmentLow DensityTotal (SHIP orother)

Estimated number of units constructed to standard Single familyresidential

0 0





Uptake - Commitment by developers to adopt standard Multi familyresidential

~10 per cent 218 uthe pagreMarkdevestand

Regi

Efficient NewDevelopmentHigh Density(SustainableDevelopmentthrough LEED

or other)

Estimated number of units constructed to standard x 0

Review suitability of development charge credits forparticipating developers

Single andmulti familyresidential

Complete Q4 Asse

Develop detailed monitoring program Single andmulti familyresidential

Start and complete In pro

Governance and AdministrationDevelop multi-stakeholder advisory group and determinesuitable meeting schedule and protocols

all Full implementation In proRefe

Develop detailed implementation plans with full cost-benefitand ROI assessments

all Start In prNove

Asso

Develop measurement and reporting framework to meetannual reporting requirements

all Start In pro

Policies and By-laws

Create commercial industrial conservation and efficiencyguideline

ICI Start In proretain

Evaluate thefollowingagainst best-in-class

New development incentive programs (Review of SHIP andLEED programs)

Single andmulti-familyresidential

Start Workinduscond





Advocacy to encourage water efficiency and reuse inProvincial permit to take water and building code changes

all Start AttenengaOntaSuppconsOnta


Outdoor water use reduction pilot – target high water usersand irrigation systems

ICI and multifamilyresidential

Start• Develop projectplan with localmunicipal staff

Irrigaaudit

Water efficient demonstration landscape on residentialproperty in Richmond Hill (part of SustainableNeighbourhood Retrofit Action Plan project)

Single family Start

• project plan beingdeveloped withToronto and RegionConservation

Authority and Townof Richmond Hill

SustRetroHomwinnstarte

Expedited approvals process Single andmulti family

residential

Fundthe p

Watepartn Authmuni

Retrofit and showcase municipal facilities Start • Complete

inventory of newand/or retrofittedfacilities

• Confirm possiblepartnerships

Compand/o

Regional-Munic ipal System International Water Association (IWA) AuditILI = Infrastructure Leakage Index – annual audit by eachmunicipality

Start ConsBillinis cocolleongocomp

Process for collecting water consumption data Start Billinbeenongobeen





Monitoring and evaluation program Start Eastdraft WorkcommoveradeveDeve

repre2011Determine consumption by sector Start In pro

colleprelimstarte

Guidelines for retrofits of municipally owned buildings Start In prProprevieguide

Marketing, Education and OutreachWater Efficiency and Conservation Seminars andWorkshops

all 20 20 se

Free Individual Landscape Assessments and Advice Single andmulti familyresidential

1,000 821 v

Updated Youth Education Programs Start Met w Authand p

Children’s Water Festival 5,000 students 5,000partic

Ten-year marketing, education and outreach strategylinked to all program components

All Start ShorqualiTwo cons

Auth

geneOutreach through local groups All





2.2.2. Reporting on water saved to date

The Long Term Water Conservation Strategy identifies five‐year targets and timelines for total

water savings and residential per capita demand. The Strategy also sets out the annual participation rates and program implementation status necessary to meet these five‐year

targets.

The Water for Tomorrow water‐efficiency program is designed to provide the tools York

Region residents need to conserve water in the home, the garden and at work. Participation

in this program for 2011 is estimated to be saving 1.8 million litres of water per day (MLD).

This is on track to meet the Long Term Water Conservation Strategy target of 10 million litres

of water saved per day by 2016 through existing York Region led water conservation

programs and 3.4 million litres of water from new programs identified in the strategy.

Water savings estimates are based on participation rates in each of the programs and

industry standards and peer‐reviewed research studies on water savings attributable to

specific conservation and efficiency practices. Methodologies used for estimating water

saved were reviewed and revised by a consultant as part of the implementation planning for

the LTWCS. The bulk of the water savings is attributed to participation in the toilet rebate

programs. Over 29,000 toilets were replaced through the rebate program in 2011.

2.2.3. Local municipal participation and collaboration – water billing data

One of the main constraints identified in the Long Term Water Conservation Strategy was the

lack of access to water demand data collected from water meters as part of local municipal

water billing practices. The Strategy stated that “securing access to usable, consistent water

demand data is absolutely imperative for the effective execution and ongoing monitoring of

the Strategy.”

A number of challenges had to be overcome before a process of data sharing could begin. For

most municipalities in York Region, the water billing process was not designed to report

demand data in the format required for the purposes of measuring per capita usage. Nor was

the data collected in a consistent format across the Region. Some municipalities also had

privacy concerns around sharing information from their billing database. Regional staff

worked closely

with

each

of

the

nine

local

municipalities

to

review

water

billing

data

for

2010

and to develop a process to share data at regular intervals starting in 2012.

2.2.4. Updated water demand sector

Access to complete water demand data has enabled the Region to begin to develop a more

accurate breakdown of water demand by sector, including residential, industrial, commercial





and institutional and non‐revenue water. A certain amount of non–revenue water is

expected in municipal systems, shown by municipality in Table 2.3. Non‐revenue water is

water supplied, but not metered, for example water used for emergency services such as

firefighting, operational purposes such as proactive system maintenance flushing, loss due to

leaks, etc.

Table 2.3

2010 Non‐Revenue Water by Municipality

Municipality

2010 Percentage Non‐Revenue

Water

King 22%

East Gwillimbury

22%

Whitchurch‐Stouffville 16%

Georgina 13%

Aurora 8%

Newmarket 15%

Richmond Hill 5%

Markham 16%

Vaughan 17%

Total 15%

The performance

of

the

water

distribution

systems

is

measured

through

the

infrastructure

leakage index, which is a performance indicator of real water loss from the supply

network. Table 2.4 is the infrastructure leakage index by municipality as calculated based

on the data provided by the municipalities.





2.2.5. Updated Long Term Water Strategy Targets

Per capita demand targets in the Strategy are based on previously limited available data and

assumptions from the Water and Wastewater Master Plans. The Strategy forecasted the

2011 residential water demand to be approximately 252 litres per person per day. Analysis

using water billing meter data readings along with updated population estimates show 2010

per capita residential demand is approximately 220 litres per person per day.

Further analysis of additional billing data will be conducted to confirm that the lower per

capita demand is accurate and not an anomaly for 2010. The impact of a lower per capita

demand will result in a new 2011 baseline for per capital residential water demand in York

Region and require strategy targets to be updated. The analysis and review will be completed

in 2012.





3. 2012 Planned Deliverables and Outlook

3.1.

Inflow and

Infiltration

Reduction

Strategy

3.1.1. Summary of Goals and Targets

This section outlines the Inflow and Infiltration Reduction Program goals and targets for 2012,

see Table 3. Highlights of 2012 include;

• Calibration of the all‐pipe sewage model for the York Durham Sewage System

• Prepare strategy, program components and equipment tender, purchase additional flow

monitors and continue/develop flow monitoring program

•

Update

to

the

public

communication

plan

based

on

strategy

development

on

private

side

inflow and infiltration

• Develop and present annual report for the Ministry of the Environment and Regional/local

councils

• Review Regional and municipal design and construction standards

Table 3.1 below provides a summary of all goals and targets for 2012.





Table 3.1

Inflow and Infiltration Reduction Strategy

2012 Goals

2012 Goals/Object ives Estimated Start

Program Component: Goals and Objectives

Finalize and calibrate all pipes hydraulic model. Model completed, calibrationongoing

Refine the detailed audit and measure procedures using data from 2011flow monitoring program, flow reduction achievements and outputs from thecalibrated all pipes model.

Q2 2012

Program Component: Monitor and Analyze Flow

Prepare equipment tender, purchase additional flow monitors and continuewith flow monitor installations and maintenance for monitors that wereidentified in the flow monitoring program (estimated cost $1.0M). Continuethe installation and maintenance of 100 audit basin flow monitors.

Q4 2012

Select locations, relocate and maintain short term flow monitors at the minibasins based on 2010 analysis of audit basins (estimated 30 flowmonitors).

Q4 2012

Complete short‐term post construction flow monitoring and data analysis ofthe nine pilot remediation projects and determine the actual flow reductionachieved by pre‐2012 remediation projects.

Q4 2012

Contingent upon execution of I/I agreement with local municipalities anddeveloper groups, validate flow monitoring and flow reduction analysis ofdeveloper funded initiatives

Ongoing

Program Component: Investigate and Mitigate

Complete Sanitary Sewer Evaluation Study (SSES) investigations and assessinspection results to validate I/I sources within the priority mini-basin sites(estimated budget $1.0M)

Q4 2012

Prioritize and budget short-term capital and maintenance programs forhighest priority mini basins resulting from SSES analysis.

Q4 2012

Establish procedures, policies and complete a private side full length lateralrehabilitation “pilot” project (estimated budget $500k).

Q3 2012

Complete the remediation of e priority catchments and commence flowmonitoring to determine success of flow mitigation.

Ongoing





Program Component: Development & Capital Projects

Based on the flow analysis results from new development monitoring

locations from 2011 monitoring, establish common wording for newsub‐division agreements that could include additional testing andacceptance criteria.

Q2 2012

Program Component: Financial Management

Review and refine the short and long-term funding requirements for Capitaland Operating program costs, based on works and costs/benefitscompleted to date.

Q3 2012

Investigate private property subsidy and grant programs for lateralrehabilitation, downspout and foundation drain removal, review alternatives,establish funding impacts and potential funding sources.

Q3 2012

Program Component: Communication

Update the public communication plan and develop new Region and localmunicipal I/I reduction program websites to include promotional andoutreach materials (i.e. describe grant programs, overall program status,basement flooding awareness etc.).

Ongoing

Industry focus group will meet annually to discuss guidelines andprocedures.

Ongoing

Program Component: Report I/I Reduction

Develop and present the annual Council Report describing program status,financial impacts and progress to date based on information received fromlocal municipalities.

Q4 2012

York Region Program Manager to prepare and submit an annual report

meeting the compliance requirements for the MOE describing I/I reductionachieved in previous year, re‐confirm and/or update reduction goals andtargets.

Q4 2012

Program Component: Continuous Improvement

Review permanent flow monitoring procedures and analysis procedures andenhance flow monitoring programs including defining requirement foradditional or enhanced flow monitors (i.e. different technologies)

Q2 2012

Develop a Region-wide climate change model to identify the impact ofchanging weather patterns on I/I, review impact climate change could haveon I/I targets.

Q4 2012

Review Regional and Municipal Design and Construction Standard andrevise criteria where required (i.e. recommend and implement new I/Idesign allowance based on 2011 analysis results).

Q4 2012

Implement new sewer use by‐laws as developed for local municipalities. Q1 2013

Review potential impacts and reporting requirements of Water Opportunities Act , 2010, as subordinate regulations are developed.

Q4 2012





3.1.2. Mitigation Plans

This section outlines the Inflow and Infiltration Reduction Program mitigation plans for 2012.

Key activities to be completed in 2012, subset to Table 3 include:

Completion of pilot projects for 8 catchments

• Based on the Sanitary Sewer Evaluation Study (SSES), eight catchment areas were

identified as high priority areas in terms of inflow and infiltration

• Remediation works included relining of approximately 12 kilometres of mainline sewer,

162 point and surface repairs and 375 manhole rehabilitations

• The project was divided into two construction phases

• Phase 1 includes rehabilitation work in four catchments in Aurora, Newmarket (2) and

Richmond Hill; Phase 1 works began in January 2012

• Phase 2 includes

rehabilitation

work

in

four

catchments

in

East

Gwillimbury,

Georgina

(2)

and Whitchurch‐Stouffville; Phase 2 works will begin in Q2 2012

• Completion of the project is expected in Q4 2012

Phase 2 of pilot projects

• Based on outcome from the first round of pilot projects, a second round of pilot projects

will begin in 2012

• Initially a total of 77 catchments were identified as meeting pilot project selection criteria

• This number was reduced to 26 catchments in which SSES inspection were conducted

• Eight catchments were selected as high priority areas for remediation in 2012

• With a second phase of potential pilot projects, other high priority areas will be reviewed

and evaluated for inclusion in the project; these areas include catchments in Aurora,

Markham, Newmarket and Vaughan.

Monitoring audit program

• Through 2012 to 2015, permanent flow monitoring devices will be installed to audit flows

throughout the Region and will leverage the 2008 to 2011 pilot monitoring program in

terms of equipment, data and standard practices

• The flow data collected on a permanent basis will help determine inflow and infiltration

volumes for audit and reporting purposes

Phase 2 of

the

new

development

guidelines

–

Inspection,

Testing

and

Acceptance

• As part of the ongoing commitment to the Strategy, the next phase of work will address

improved standards for municipal development including subdivision agreements and site

plan approvals

• Specific areas to be addressed include the control of inflow during construction and the

timing of connections prior to occupancy and/or full build out

• A consultant has been retained to assist with data collection and review in Q1 2012





Development funded pilot projects

• Four, tri‐party agreements have been approved within the Region with local municipalities

(Markham, Vaughan, Aurora and Richmond Hill) and developers. • Work to be completed following final stages of approval

• As work proceeds, validation will occur through flow monitoring in 2012 / 2013 / 2014

• Third party consultant retained to validate process

• Flow monitoring has started in four municipalities

• Remedial work has started in one municipality

Regional CCTV program

• Inspection for inflow and infiltration flow reduction is a component of the Regional and

local ongoing condition assessment and asset management programs

• The Region’s

current

closed

circuit

television

program

undertakes

inspection

of

the

trunk

sewer network on a 10‐year cycle, based on sewer condition rating

• In 2011, the closed circuit television program inspected a total of 23.9 kilometres of trunk

sewers and 0.5 kilometres of siphons

• In 2012 the program will be inspecting 25 kilometres of trunk sewers

• Annual inspections cover approximately 10 per cent of the trunk system

Funding of $5M beyond pilots for local works and/or reserve funds

• The Inflow and Infiltration Reduction Strategy funding model has been approved based on

the following key funding principles:

−

Set

rate

will

be

collected

at

both

the

local

and

Regional

level

as

identified

through

the

needs of the Strategy and as agreed to by the municipal partners. An initial funding

target of $100 million over 20 years has been established. This equates to an annual

investment of $5 million per year across the Region for inflow and infiltration reduction.

− The amount collected at the local level will be used to address priorities identified both

through the Strategy and as determined by each local municipality.

− The amount collected at the Regional level will be used to address Regional inflow and

infiltration priorities both at the Regional and local level.

− Allocation of Regional funds intended for use in the local systems will be managed and

allocated by a joint team with staff representatives from each municipality and the

Region. Funding will be prioritized based on the most effective application to achieve

the desired

inflow

and

infiltration

improvements

as

quickly

as

possible.





Funding of $2.87M for Regional sewer works in 2012

• Through the Region’s Infrastructure Management Program, inflow and infiltration issues

within the Regional trunk sewers are also identified and remediation works planned.

• Approximately $2.87M is required in 2012 for locations requiring remediation

• Approximately $45 million will be required over the next 10 years for Regional sewer

rehabilitation across the entire sewer system, including remediation and upgrades to the

existing South East Collector Trunk Sewer after completion of the new Southeast Collector

Trunk Sewer.





3.2. Long Term Water Conservation Strategy

3.2.1. Summary

of

Goals

and

Targets

Table 4 provides a detailed summary of the goals and targets for 2012. The Region will be

launching a number of new initiatives in 2012 as part of the implementation of the LTWCS.

Rebates and Financial Incentives

York Region will pilot and evaluate offering discount coupons to encourage the purchase of

water efficient landscape plants. The subsidized rain barrel program and the commercial

kitchen valve replacements will be discontinued in 2012 due to market saturation and in the

case of rain barrels, limited water savings.

New Development

Moving forward with the efficiency standards for new developments, Region staff will

develop a methodology for setting targets for uptake based on available information about

development rates in York Region. Monitoring protocols for assessing the water savings

associated with pilot implementation of the standards will put into place when new home

construction is completed.


The multi‐stakeholder advisory committee will meet approximately five times in 2012.

Optimization of programs including the development of implementation plans with cost‐

benefit analysis

for

components

of

the

LTWCS

is

ongoing

with

priority

areas

for

2102

identified as an analysis of existing incentive programs and outdoor water use reduction

programs.

Policies and By‐laws

The development standards and summer water conservation by‐laws will be evaluated

against best‐in‐class programs. Draft guidelines for efficiency and conservation by

commercial and industrial water users will be completed.


Several new pilots will begin in 2012. In the Industrial, Commercial and Institutional sector, a

plan and

supporting

partnerships

will

be

established

for

implementation

of

the

new

industrial, commercial and institutional conservation and efficiency guidelines; in the

residential sector, planning and partnership development will be initiated to support the

‘unlawning’ challenge and a new expedited approvals process for sustainable developments.

Educational materials and monitoring plans to showcase municipal facilities with sustainable

technologies will also be created.





Pilot programs that were started in 2011, including the Sustainable Neighbourhood Retrofit

Action Plan front yard makeover project in partnership with Toronto and Region Conservation

and the Industrial, Commercial and Institutional irrigation reduction pilot, will be completed

and evaluated in 2012.

Regional‐Municipal System

The International Water Association (IWA) audit will be completed in Q2 of 2012. The

outcomes will lead into the development of a leak detection program based on the identified

priority areas.

Full implementation of the billing data sharing process will begin in 2012, including

development of a specialized database for storage and analysis reporting.

Marketing, Education

and

Outreach

2012 will see evaluation of existing programs and expansion of some outreach programs.

Delivery of existing landscape assessments and workshops will continue through 2012.

Evaluation of the efficacy of these programs will be conducted as part of the optimization

review. New youth education programming will be developed in addition to the existing York

Children’s Water Festival event.





Table 3.2Long Term Water Conservation Strategy

2012 Goals and Targets

ProgramComponentsbased onbest-in-classreview

Tactics Sector 2011 2012

Rebates and Other Financial InstrumentsFree water audits ICI 10 facilities 10 facilities Implementation of capacitybuy-back

ICI 1.5 facilities 1.5 facilities

Front-loading clothes washerinstallations

ICI 120 120

HET Toilet rebate ICI 6,240 6,240Pre-rinse spray valve forcommercial kitchens(program has reachedmarket saturation)

ICI 30 comm.kitchens

0 comm. kitchens

Water efficient furnacehumidifier

Single familyresidential

1,000 1,000

Subsidized rain barrels Single familyresidential

4,000 0

Front-loading clothes washerinstallations

Multi familyresidential

150 150

Pilot and Evaluate coupondiscounts for water efficientplants

Single and multifamily residential

StartEvaluate

WaterSense Toilet rebate Single and multifamily residential

12,000 12,000

New DevelopmentUptake - commitment bydevelopers to adopt standard

Single familyresidential 5 per cent Evaluate reporting

and goal settingmethodology

Efficient NewDevelopmentLow DensityTotal (SHIP orother)

Estimated number of unitsconstructed to standard

Single familyresidential

0 0

Uptake - Commitment by

developers to adopt standard

Multi family

residential

~10 per cent Evaluate reporting

and goal settingmethodology

Efficient New

DevelopmentHigh Density(SustainableDevelopmentthrough LEEDor other)

Estimated number of unitsconstructed to standard

X X

Develop detail monitoringprogram


Start andcomplete

Complete





Implement monitoringprogram


Fullimplementation


Develop multi-stakeholderadvisory group anddetermine suitable meetingschedule and protocols

all Fullimplementation Fullimplementation

Develop detailedimplementation plans withfull cost-benefit and ROIassessments

all Start Ongoing

Develop measurement andreporting framework to meetannual reportingrequirements

all Start Fullimplementation

Policies and BylawsCreate commercial industrialconservation and efficiency

guideline

ICI Start Create draftguidelines

Summer water conservationby-law

all Start Evaluate thefollowingagainst best-in-class New development incentive

programsSingle and multi-family residential

Start Ongoing

Advocacy to encouragewater efficiency and reuse inprovincial permit to takewater and building codechanges

all Start Ongoing

Pilot and Demonstration Projects – budgeted $2.7 million over 10 yearsOutdoor water use reductionpilot – target high waterusers and irrigation systems

ICI Start

• Develop projectplan with localmunicipal staff

Complete Pilot

Implement commercialindustrial guidelines

ICI Start

• Develop projectplan• Confirm possiblepartnerships

Water efficient demonstrationlandscape on residentialproperty in Richmond Hill(part of SNAP project)

Single family Start

• Project planbeing developedwith TRCA andRichmond Hill

Ongoing• Complete gardendesigns and install

Unlawning challenge Single and multi-family residential

Start

• Develop projectplan• Confirm possiblepartnerships





Expedited approvals process Single and multi-family residential

Start • Confirm possiblepartnerships forpilot

implementation• Develop projectplan with localmunicipal staff

Retrofit and showcasemunicipal facilities

• Completeinventory of newand/or retrofittedfacilities

Start

• Confirm possiblepartnerships• Develop plan andpublic material withlocal municipalstaff

Document water/energy

savings outcomes

Start

• Develop plan andmethodology withlocal municipalstaff

IWA AuditILI = Infrastructure LeakageIndex – annual audit by eachmunicipality

Start Complete

Leak Reduction – addressresults of IWA audits

Start Prioritize areas forleakdetection/reductionDevelop programplan up to 20DMAs per yearILI <2

Process for collecting waterconsumption data

Start Start fullimplementation

Monitoring and evaluationprogram

Start Ongoing

Determine consumption bysector

Start Ongoing

Guidelines for retrofits ofmunicipally owned buildings

Start Draft guidelinescomplete





3.2.2. Revised Tactics and Targets

The toilet rebate program exceeded its target in 2011 due to the program’s popularity with

single‐family home owners. In 2012, the Region will evaluate that program against best‐in‐

class examples to assess the opportunities to change the incentive or potential participants and shift resources to other rebate programs. Promotional resources will also be shifted to

increase uptake of other rebate programs such as the humidifier rebate and the multi‐unit

and ICI toilet and washer rebates. In 2012 staff resources will also be allocated to promoting

the capacity buy‐back program to encourage implementation of audit recommendations.

The Region will also be revising the targets for uptake of the new development standards. It

is proving to be difficult to assess uptake as a percentage of total new development because

the Region does not have access to all site plans approved by lower tier municipalities. A new

methodology for setting targets will be indentified in 2012.

Marketing, Education and OutreachWater Efficiency and

Conservation Seminars andWorkshops

all 20 20

Free Individual Landscape Assessments and advice

Single and multi-family residential

1,000 Evaluate

Updated youth educationprograms

Start Ongoing

York Children’s WaterFestival

5,000 students 5,000 students

Ten-year marketing,education and outreachstrategy linked to all programcomponents

All Start

Implementation of priorityeducation programs basedon 10-year education andoutreach strategy results

All Start

Outreach through localgroups

All Start fullimplementation

Water Efficiency outreach tonew Canadians

Start fullimplementation





3.2.3. Mitigation Plans

Several existing programs are reaching market saturation and will be discontinued or

evaluated in 2012. Due to both a decline in popularity and its low cost effectiveness, the rain

barrel sales program will be discontinued. The landscape visit program has also seen a

decline in uptake. It will continue in 2012, however, the Region will be evaluating its

effectiveness and identify ways to increase its effectiveness. The commercial kitchen valve

replacement program has also reached market saturation and will be discontinued.




Annual

Report

dated

March

31,

2012

Appendix A: Intra Basin Transfer

Summary 2011



2011 Intra Basin Transfer Summary of Monthly Volumes

The

Regional

Municipality

of

York

is

submitting

the

information

below

in

accordance

with

the

Ministry of Natural Resources and Ministry of the Environment letter dated September 14,

2010, regarding “Successful Completion of Prior Notice and Consultation on The Regional

Municipality of York's proposal for an increased intra‐basin water transfer under the Great

Lakes Charter.”

As stipulated in the aforementioned letter, Condition f) requires York Region to monitor and

report monthly volumes of its intra‐basin transfer in the preceding calendar year. In

satisfaction of that condition, the following table lists total monthly volumes transferred from

the Lake Ontario watershed into the Lake Huron watershed with return flow to Lake Ontario:

2011 Monthly Intra-basin Transfer Volumes

BloomingtonYonge(m3)

AuroraSouthRes(m3) Total Volume Days

Average(MLD)

January 65046 483118 548,164 31 17.7

February 53788 420568 474,356 28 16.9

March 66415 511862 578,277 31 18.7

Apri l 64457 329965 394,422 30 13.1

May 60750 444156 504,906 31 16.3

June 76553 390203 466,756 30 15.6

July 66506 477022 543,528 31 17.5

August 65976 510665 576,641 31 18.6

September 67071 420876 487,947 30 16.3

October 57659 399208 456,867 31 14.7

November 56952 363512 420,464 30 14.0

December 66015 418496 484,511 31 15.6

Total 767,188 5,169,651 5,936,838 365 16.3




Annual

Report

dated

March

31,

2012

Appen ix B: Quantified Catchments

for Inflow

and

Infiltration Reduction




Annual

Report

dated

March

31,

2012




Annual

Report

dated

March

31,

2012

Appen ix C: Inflow and Infiltration

Reduction Program

Annual Report to Council



Environmental Services Committee 1March 7, 2012

THE REGIONAL MUNICIPALITY OF YORK

Environmental Services CommitteeMarch 7, 2012

Report of the

Commissioner of Environmental Services

INFLOW AND INFILTRATION REDUCTION PROGRAM ANNUAL REPORT

1. RECOMMENDATIONS

It is recommended that:

1. The Regional Clerk circulate this report to the Clerks of the local municipalities andthe Director, Central Region, Ministry of the Environment.

2. PURPOSE

The purpose of this report is to update Regional Council on the Inflow and InfiltrationReduction Program and the annual report required by conditions of the Minister of theEnvironment as part of the approval of the Southeast Collector Trunk Sewer IndividualEnvironmental Assessment. York Region is the first Regional Municipality required bythe Ministry of the Environment to meet such unique and stringent conditions related toinflow and infiltration in Regional and local sewer systems.

3. BACKGROUND

The 2001 York Durham Sewage System Master Plan update specifically identifiedextraneous flow reduction as a significant design consideration for all York DurhamSewage System projects. Although advances in inflow and infiltration reduction have been significant to date, a considerable amount of additional work is now underway. InFebruary and March 2011, Regional and local Councils approved the Inflow andInfiltration Reduction Strategy that focused on the following commitments:

• Develop and maintain the Strategy including the programs, goals and interagency andregulatory reporting requirements for staged reduction of inflow and infiltration over

the next 20 years• Recommend to future Councils that they commit funds for inflow and infiltration

reduction that is economically justified by the avoidance of future treatment andconveyance costs

• Measure wastewater flows before and after carrying out construction/rehabilitationworks on sewers and document inflow and infiltration reduction expenditures and flowreduction measures



Inflow and Infiltration Reduction Program Annual Report


• Continue to work together in a collaborative manner over the life of the Strategy andcommit appropriate staffing and financial resources toward implementation of theStrategy based on a business case analysis

Water and Wastewater Steering Committee, including representatives from

all local municipalities, is working collaboratively to implement the Strategy

The Region formed the Water and Wastewater Steering Committee in April 2010 tosuccessfully develop a comprehensive Strategy that addresses the Minister’s Conditions.The Steering Committee is comprised of representatives from all nine localmunicipalities and the Region and is responsible to review inflow and infiltration issuesand formulate the overall direction for development and implementation of the Strategy.York Region and the local municipalities are working collaboratively to implementvarious activities and resource the work required by their respective organizations todrive program implementation. All 10 municipal partners have committed to identifyingand addressing the financial requirements for the 20 year horizon and the long term

period beyond.

4. ANALYSIS AND OPTIONS

Inflow and infiltration reduction will require comprehensive flow monitoringprogram

Through 2012 to 2015, permanent flow monitoring devices will be installed to auditflows throughout the Region and will leverage the 2008 to 2011 pilot monitoring program in terms of equipment, data and standard practices. The flow data collected on a

permanent basis will help determine inflow and infiltration volumes for audit andreporting purposes. A Request for Proposal to develop the permanent flow monitoring program, including flow monitor selection, procurement, installation and monitoring wasreleased in February of 2012.

Most local municipalities do not currently have formal flow monitoring programs.However, as the audit program is developed and implemented, it may be required to begin isolating critical areas. Markham has purchased 4 monitors for their system and isevaluating flows on a smaller basin level.

The Region’s all-pipe sewage model provides detailed system flow analysis

Adequate continuous real time flow and rainfall data are essential to ensure an all-pipemodel is a reliable and functional tool to support reduction programs. York Region hasdeveloped an all-pipe sewage model for the York Durham Sewage System including the portion in Durham Region. The model will be used to:

• Support the York Region Wastewater Master Plan and ten-year capital programs

• Support system wide operational strategies including real time control





• Support the Inflow and Infiltration Reduction Program to identify areas of highinflow and infiltration as well as to quantify inflow and infiltration reduction asremedial works are carried out

Inspection and assessment programs successful in pinpointing sources of

inflow and infiltration

Inspection for inflow and infiltration flow reduction is a component of the Regional andlocal ongoing condition assessment and asset management programs. The Region’scurrent closed circuit television program undertakes inspection of the trunk sewernetwork on a 10 year cycle, based on sewer condition rating. In 2011, the closed circuittelevision program inspected a total of 23.9 km of trunk sewers and 0.5 km of siphons. In2012 the program will be inspecting 25 km of trunk sewers. Annual inspections coverapproximately 10% of the trunk system.

The following local municipalities have ongoing inspection programs in place:

•

Vaughan, 210 km closed circuit television in 2011• Markham, 132 km closed circuit television in 2011

• Newmarket, 8.25 km closed circuit television in 2011

• King, 1.8 km closed circuit television in 2011

• Aurora, 33 km closed circuit television in 2011, 500 manholes inspected

• Richmond Hill, 130 km, closed circuit television in 2011

Development funded investigation and remediation efforts t ied to allocationand proven reductions

In May 2011, the Region, Town of Markham and Upper Unionville Inc. signed a tri-party

agreement for reducing inflow and infiltration within the Town of Markham. UpperUnionville Inc. agreed to reduce inflow and infiltration within the municipality inexchange for advanced wastewater servicing allocation to support a new residentialdevelopment at the northeast corner of Kennedy Road and Sixteenth Avenue. Animplementation plan for inflow and infiltration reduction was developed by UpperUnionville Inc. and reviewed by the Region and Town. Remediation works are currentlyunderway. The Region will determine eligible capacity for assignment based on proveninflow and infiltration reduction through remedial work performed by the developer andreviewed by the Region and Town.

Opportunities include:

• Developer funding of the project at no cost to the Region or the Town• Quick commencement of work with readily available resources from the developer

• Acquiring project experience that can be used for other inflow and infiltrationreduction projects in the Region

• A reduction in inflow and infiltration and peak sewer flows





This opportunity has been provided to all Regional local municipalities and resolutionshave also been passed in the Towns of Aurora and Richmond Hill and the City ofVaughan to participate in the program.

Local remediation pilot pro jects will provide inflow and infiltration

reduction and determine effectiveness of reduction technologies

A comprehensive Sanitary Sewer Evaluation Study of sanitary sewers and manholeslocated within local municipal systems was completed in 2010. Remediation projectswere proposed for the eight projects categorized as the highest priority catchments interms of inflow and infiltration. Remediation will include relining of approximately 12km of mainline sewer, 162 point and surface repairs and 375 manhole rehabilitations.

The project was divided into two construction phases. Phase 1 includes rehabilitationwork of four catchments in Aurora, Newmarket (2) and Richmond Hill. Commencementof this phase began in January 2012. Phase 2 includes rehabilitation work of four

catchments in East Gwillimbury, Georgina (2) and Whitchurch-Stouffville.Commencement of this phase will begin in Q2 2012. Completion of the project isexpected by Q4 2012.

Local municipalities have also been completing rehabilitation work which shouldimprove system performance and assist in the reduction of inflow and infiltration. Workincludes:

• Vaughan, 10 manholes relined in 2011

• Whitchurch-Stouffville, 1.16 km of sewer relined, 2 manholes repaired in 2011

• Markham, 1.22 km of sewer relined in 2011

• Newmarket, 1.76 km of sewer relined, 5 manholes repaired in 2011

• Aurora, 5 km of sewer relined, 20 manholes repaired/relined in 2011• Richmond Hill, 2 km of sewer relined in 2011

York Region’s 10-year Capital Program identifies $45M investment thatsupports flow reduction

Through the Region’s Infrastructure Management Program, inflow and infiltration issueswithin the Regional trunk sewers are also identified and remediation works planned.Currently there are a number of locations planned for remediation and this remediationwill occur in the Regional trunk system over the next three years to reduce inflow andinfiltration, including portions of the York Durham Sewage System (YDSS).

Approximately $45 million will be required over the next 10 years for Regional sewerrehabilitation across the entire sewer system, including remediation and upgrades to theexisting South East Collector after completion of the new Southeast Collector.





Communication, education and advocacy have developed key relationshipsto support the Program

The Strategy was developed through a collaborative approach including initiatives withmulti-sector steering committees including representatives from the Ontario Concrete

Pipe Association, Greater Toronto Sewer and Watermain Contractors Association, BILD,consulting engineers, regulatory agencies and municipalities. The work examinednumerous sources of information on inflow and infiltration reduction includingworldwide best practices employing lifecycle based approaches. Through a sequence of programs at the Regional and local municipal level, inflow and infiltration will bereduced to optimize the system for new flow and growth within the Region as well asaddressing social and environmental demands.

As part of continued consultation with industry stakeholders, several presentations on theInflow and Infiltration Reduction Strategy have been given by the Region to illicitcomments on the Strategy. Presentations have been given to the Ontario Concrete Pipe

Association, Building Industry and Land Development Association, the MunicipalEngineers Association, National Water and Wastewater Benchmarking Initiative,Ministry of the Environment and the South East Collector Advisory Committee.

As representatives for the Municipal Engineers Association, Regional staff sit on thePlant Prequalification Committee held through the Ontario Concrete Pipe Association.This Committee drives the acceptance and testing requirements for concrete productmanufacturers in Ontario and also resources an audit program to monitor productioncertificates and compliance with performance thresholds. Participation has garneredexcellent discussion around product performance and enhanced testing.

Improved standards and guidelines will facilitate efficiency in newdevelopment

The York Region Sanitary Sewer Inspection, Testing and Acceptance Guidelines outline procedures and minimum requirements for inspection, testing and acceptance of newsanitary sewer systems commissioned in York Region and the nine local municipalities.The Guidelines were developed in conjunction with Regional staff, local municipalitiesand industry experts. The Guidelines have been finalized and were distributed to the ninelocal municipalities for implementation in October 2011.

As part of the ongoing commitment to the Strategy, the next phase of work will addressimproved standards for municipal development including subdivision agreements and site plan approvals. Specific areas to be addressed include the control of inflow duringconstruction and the timing of connections prior to occupancy and/or full build out. Tothis end, a consultant has been retained to assist with data collection and review in Q12012. To date the following municipalities have used the new guidelines to commissionnew developments and the remaining municipalities have committed to do so through theStrategy approval:

• Whitchurch-Stouffville, two developments





• King Township, four developments

• Markham, sixteen developments

Significant achievements in the first year o f implementation

The Inflow and Infiltration Reduction Strategy recommended a target flow volumereduction at the Southeast Collector Trunk Sewer of 71 ML within a 24-hour periodunder a 25-year storm event, with approximately 40 ML to be achieved through inflowand infiltration reduction and the balance through water conservation initiatives by 2031.

In order to accurately quantify inflow and infiltration reduction, it is essential to installflow meters near the location of remediation works and collect data before and afterconstruction to carry out comparison analysis. Regional staff have been coordinating withlocal municipal staff to install flow meters at required locations for all new remediation projects including the pilot projects noted in this report and are carrying out analysis on projects as flow data becomes available. To date, three catchments have complete pre and

post construction flow data to enable staff to quantify the inflow and infiltrationreduction. Reduction efforts have occurred in another eight catchments from 2008 to2011, however post monitoring to quantify volumes is not complete and will not beavailable until late 2012.

The above will be included in the first Annual Report to the Ministry of Environment andas more flow data becomes available in other catchments, it will be reported accordinglyin subsequent Annual Reports. Although the reduction only represents 2% of the 20 yearrequirement, it is significant to note that the Strategy was just finalized in March of 2011and approved by the Ministry of Environment in October 2011. To see reductions thisearly in the process is very promising. Also, given that the Strategy was only endorsed byRegional and Local Councils in 2011, the first full year of resource planning and budgeting starts in 2012. The program will pick up significant momentum in this firstyear of implementation and further and greater reductions are expected in the future.

Link to Key Council-approved Plans

The Inflow and Infiltration Reduction Program has direct links to the Regional 2011 to2015 Strategic Plan. More specifically, the Strategic Priority Area focussing on continueddelivery and sustainability of critical infrastructure, stipulates a key objective is toidentify and leverage capacity available in existing infrastructure to complete the build-out of developing communities. A key indicator of success for this objective is thedecrease of inflow and infiltration in Regional and local systems.





5. FINANCIAL IMPLICATIONS

The Inflow and Infiltration Reduction Strategy funding model has been approved basedon the following key funding principles:

• A set rate will be collected at both the local and Regional level as identified through

the needs of the Strategy and as agreed to by the municipal partners. An initialfunding target of $100 million over 20 years has been established. This equates toan annual investment of $5 million per year across the Region for inflow andinfiltration reduction.

• The amount collected at the local level will be used to address priorities identified both through the Strategy and as determined by each local municipality

• The amount collected at the Regional level will be used to address Regional inflowand infiltration priorities both at the Regional and local level

• Allocation of Regional funds intended for use in the local systems will be managedand allocated by a joint team with staff representatives from each municipality andthe Region. Funding will be prioritized based on the most effective application to

achieve the desired inflow and infiltration improvements as quickly as possible.

Funding for required Regional inflow and infiltration reduction work has been includedin the approved 2012 capital budget.

6. LOCAL MUNICIPAL IMPACT

Al l Local munic ipali ties have endorsed the Inflow and Inf il tration Reduct ionStrategy

Local municipal staff have been involved in development of the Inflow and Infiltration

Reduction Strategy through participation in the Water and Wastewater SteeringCommittee. Local municipal Councils have endorsed the strategy to fulfill the conditionsof approval for the Southeast Collector Trunk Sewer Individual EnvironmentalAssessment. Continued participation by all local municipalities is required to meetMinistry requirements and ensure successful implementation of the strategy.

Successful implementation of th is program will require inflow andinfiltration reduction from private property

Eliminating infiltration from the public sewers while ignoring the private infrastructurewill compromise the Region’s efforts to reduce infiltration into the Southeast Collector

Trunk Sewer and fall short of the overall program goals. Reducing inflow and infiltrationon private property is required for success of the Strategy and program. Access to private property will be a key discussion of the Steering Committee in 2012 and will be criticalto achieving continued inflow and infiltration reductions over and beyond the Regionaland local municipal systems. Local municipalities will play a lead role in consulting withresidents, facilitation of work on private property and improving performance of new private infrastructure.





Local bylaw enforcement required for lateral inspections and remediationon private property

To ensure access to the private portion of the sewer network, local municipalities willneed to ensure that their respective bylaws include provisions such as right of entry or

inspection that will allow for access by the municipality or their contractors. These bylaws are required to provide access to private property for all related work, includinginstalling cleanouts, liners or new pipe as well as conducting closed circuit televisionwork on laterals. By moving forward with bylaw development, the Region and localmunicipalities can:

• Create a strong program of communication and technical assistance to helphomeowners design an alternative discharge method for flows, includingdisconnection programs

• Establish a clear policy regarding responsibility for cost of repairs includingsubsidy or grant programs for rehabilitation of laterals and property piping

• Establish municipal authority to order the remediation of the problem by the

property owner, even if the municipality plans to cover the cost of disconnectingthe flows itself

• Include a program of follow up inspections after repairs are made and thereafter periodically inspect repairs/disconnections. Consider time of resale inspections orcertification programs.

• Establish a strong public outreach and education component so that the public isaware of the problem and the benefits of inflow reduction

Currently, the City of Vaughan and the Towns of Markham and Georgina have bylawswhich stipulate staff be given access into areas where wastes or storm waters aredischarged for the purpose of inspection and examination of processes, private sewer

connections and other works.

The following local municipalities have been doing lateral inspections and repair in theirsystems:

• Aurora, 200 laterals inspected

• Whitchurch-Stouffville, 4 laterals inspected and replaced

• Newmarket, 80 laterals inspected, 15 laterals replaced

• Vaughan, 477 laterals inspected, 35 laterals repaired

• Richmond Hill, 177 laterals inspected and repaired





7. CONCLUSION

York Region and local municipalities have joint responsibility to implement the Inflowand Infiltration Reduction Strategy. The Region and local municipalities are also requiredto further define and implement activities necessary to ensure the Strategy is continually

maintained, enhanced and implemented. This work has commenced and will continue asa sustained program. The Strategy will be updated as data is collected, new information islearned and new technology becomes available.Through development and implementation of this Strategy, the Region and its localmunicipalities have demonstrated leadership in inflow and infiltration reduction withinthe water and wastewater industry.

On March 31, 2012, York Region will submit to the Ministry of the Environment and theSoutheast Collector Advisory Committee an annual report detailing progress onimplementing the Strategy including inflow and infiltration reduction.

For more information on this report, please contact Daniel Kostopoulos, Director, CapitalPlanning and Delivery at (905) 830-4444, Ext. 5070.

The Senior Management Group has reviewed this report.

Recommended by:

Erin Mahoney, M. Eng.Commissioner of Environmental Services

Approved for Submission:

Bruce MacgregorChief Administrative Officer

February 15, 2012

MR/se

Report Wizard v.1.20104028729





Appen ix D:

Sanitary Sewer

System

Inspection, Testing

and Acceptance Guideline



Table of Contents

Page1.General 1

1.1 General Requirements......................................................................................................................... 1 2.Gravity Sanitary Sewer Testing Requirements 3

2.1 General Requirements......................................................................................................................... 3 2.2 Test Method & Sequence .................................................................................................................... 3 2.3 Exfiltration Test - Low Pressure Air ..................................................................................................... 4 2.4 Infiltration Test ..................................................................................................................................... 5 2.5 Exfiltration Test - Water ....................................................................................................................... 6 2.6 Joint Test – Concrete Pipe (Greater than 600mm Diameter).............................................................. 6

2.6.1 Supplementary Jo int Testing .............................................................................................. 6 2.7 Mandrel Deflection Testing.................................................................................................................. 7 2.8 CCTV Inspections................................................................................................................................ 8

2.8.1 Video Inspection Equipment ............................................................................................... 8 2.8.2 Video Camera Transport Equipment .................................................................................. 8

2.9 Testing Pressure Pipe Used as Gravity Sewer ................................................................................... 9

3.Forcemain Testing Requirements 9 3.1 General Requirements......................................................................................................................... 9 3.2 Hydrostatic Leak Test .......................................................................................................................... 9

4.Maintenance Hole Testing Requirements 10 4.1 General Requirements....................................................................................................................... 10 4.2 Maintenance Hole Exfiltration Water Test ......................................................................................... 10 4.3 Maintenance Hole Infiltration Water Test .......................................................................................... 10 4.4 Negative Air (Vacuum) Test .............................................................................................................. 10 4.5 Chimney Seal Leakage Test ............................................................................................................. 11

5.Groundwater Measurement 11 6.Referenced Standards 12



YORK-#3533399 – York Region - Sanitary Sewer Inspection, Testing and Acceptance Guideline (Formerly Commissioning Guideline),October 2011

1

1. General

This Guideline outlines the general procedures and minimum requirementsrequired for inspection, testing and acceptance of new sanitary sewer systems

commissioned in York Region and the nine (9) Local Area Municipalities. TheGuideline is based on requirements and procedures from Ontario ProvincialStandard Specifications (OPSS) and American Society of Testing Materials(ASTM).

Without limiting the foregoing, it is a set of standards that outline specific requirements for inspecting andtesting the construction of sanitary sewer systems to help prevent Inflow and Infiltration (I/I) from enteringnew sanitary sewer systems. It provides direction for the preferred test methods, performance rates (testinglimits) and specific requirements for the construction of sanitary sewer systems dedicated to York Regionand the nine (9) Local Area Municipalities for the duration of the construction period, including the

installation of lateral connections to property line.

The details in the Guideline only delineate specific features of sanitary sewer system construction thatimpact I/I reduction, and are not intended to supplement or replace current York Region or nine (9) LocalArea Municipality Water and Wastewater Design Standards and Guidelines.

1.1 General Requirements

All newly constructed sanitary sewers and manholes shall be watertight and free from leakage.

The Contractor shall be responsible for payments and scheduling all testing required and informing the Municipalityand their Qualified Representative (e.g. consulting engineer) of the planned commencement date ten (10) days prior

to such commencement and reconfirm three (3) days prior to testing.

When specified in the Contract documents, leakage or water-tightness tests shall be carried out on completed pipesewers 1,200mm in diameter and smaller. There shall be no visible leakage for pipe sewers larger than 1,200mmdiameter. All tests shall be carried out in the presence of and accepted by the Municipality or their QualifiedRepresentative. Results for tests conducted in the absence of the Municipality or their Qualified Representative willnot be accepted.

The Municipality or their Qualified Representative shall inspect sanitary sewer and manhole installations and relatedwork during all phases of the construction.

No part of the work will be accepted until the sanitary sewers are satisfactorily tested following completion ofinstallation of service connections and backfilling. Upon completion, sanitary sewers and maintenance holes shall be

inspected by visual observation and tested in accordance with this Guideline for each sewer section (maintenancehole to maintenance hole). When tests are unsatisfactory, the test section shall be repaired at Contractor’s expenseand retested until satisfactory results are obtained. If the defective portion of the sanitary sewer cannot be located orrepaired, the Contractor shall remove and reconstruct as much of the work as is necessary to obtain a system thatpasses testing requirements. See Appendix A: York Region and Local Area Municipalities Sanitary SewerInspection, Testing and Acceptance Flow Charts for Concrete and Thermo-Plastic Pipes and Maintenance Holes.




2

The Contractor shall bear the complete cost and supply all equipment necessary to perform the tests required, referto Appendix A for acceptable testing processes.

Sanitary sewer construction shall be inspected throughout the construction period for general adherence to Contractspecifications and follow the sequence of testing provided in subsequent sections.

The test(s) shall be done after final backfill is placed in the trench and before asphalt has been placed (except wherevacuum testing of maintenance holes has been requested by the Municipality or their Qualified Representative).

Where the groundwater table cannot be visually monitored in terms of elevation from the pipe, the Municipality ortheir Qualified Representative may request that groundwater level be measured with piezometers placed inrepresentative locations throughout the length of sanitary sewers under construction and as detailed in Section 5.

Smoke and dye testing may be used only to locate leaks and in no case shall be considered conclusive.

General sequence of testing for sanitary sewer system is as follows (but not limited to):

1. Cleaning and flushing with high-pressure water blasting

2. Deflection or out of round testing (for Thermo-plastic pipes only)

3. Water-tightness (Leakage) testing

4. CCTV (photographic record & inspection form for maintenance holes) after testing and at the start ofmaintenance

5. Additional CCTV may be specified by the Municipality or their Qualified Representative at a time prior to

Maintenance, and at the time prior to Assumption of the works.

• For testing requirements specific to gravity sanitary sewers refer to Section 2

• For testing requirements specific to forcemains refer to Section 3

• For testing requirements specific to maintenance holes refer to Section 4

• For groundwater measurement refer to Section 5




3

2. Gravity Sanitary Sewer Testing Requirements


Gravity sanitary sewer pipes shall be cleaned and flushed with high pressure water blasting after construction and

just prior to inspection and testing.

Testing shall be carried out from maintenance hole to maintenance hole and shall include lateral connections toproperty line. Testing shall be conducted prior to any service connections being made. All service laterals, stubs, andfittings shall be plugged or capped prior to testing.

Sanitary sewers shall be repaired and re-tested, as required, until the test results are within the limits specified.Visible leaks shall be repaired regardless of the test results.

The testing requirements follow the OPSS and ASTM standards and are generally described in each subsection ofthis section. Changes or deviations to the OPSS standards are as noted herein.

2.2 Test Method & SequenceWater-tightness testing parameters are dependent on groundwater levels prior, during and after testing of thesanitary sewer, the static water level shall be recorded in accordance with Section 5.

The water-tightness test method for small diameter pipe (Thermo-plastic pipe 900mm diameter and less andconcrete pipe 600mm diameter and less) shall be Exfiltration Test – Low Pressure Air (Air Exfiltration), see Section2.3. In the event that air ex filtration testing fails and leak location and repair is unsuccessful, the use of other testmethodology may be accepted at the discretion of the Municipality or their Qualified Representative. Any otherwater-tightness method will only be allowed following the submittal of the procedure to the Municipality or theirQualified Representative for review and upon their written approval.

The water-tightness test method for large diameter pipe (Thermo-plastic pipe greater than 900mm diameter andconcrete pipe greater than 600mm diameter) and where the groundwater is at least 600mm above the highest sewer

crown shall be Infiltration Test, see Section 2.4. In the event that groundwater levels are less than 600mm above thecrown of the pipe, the Exfiltration Water Test or Joint Test as applicable shall be used only when specified by theMunicipality or their Qualified Representative, see Sections 2.5 and 2.6 respectively.

When specified by the Municipality or their Qualified Representative, supplementary joint testing on large concretepipe (greater than 600mm diameter) shall be conducted on representative joints, see Section 2.6.




4

2.3 Exfiltration Test - Low Pressure Air

Standard practice for testing, equipment used, and other specifications shall follow OPSS 410, ASTM C924, ASTMF1417-11 and as noted herein.

The Contractor is responsible for ensuring that the test is conducted in a safe manner and all applicable safetyprocedures are followed. Do not enter, or allow anyone to enter, the maintenance hole during testing.

Tests shall be conducted between two consecutive maintenance holes or to a stub end where the sewer does notterminate at a maintenance hole. The test section shall be plugged at each end. The test section shall be filledslowly until a constant pressure of 24kPa is maintained. If the groundwater is above the pipe sewer being tested,the air pressure shall be increased by 3.0kPa for each 300mm from interior pipe invert that the groundwater level isabove the invert of the pipe.

Whereby the groundwater table cannot be visually monitored in terms of elevation from pipe, the Municipality or theirQualified Representative may request that groundwater level be measured prior to testing in accordance withSection 5.

The air pressure shall be stabilized for five (5) minutes and then regulated to maintain it to 20.5kPa plus theallowance for groundwater, if any. After the stabilization period, the time taken for a pressure loss of 3.5kPa shall berecorded.

The time taken for a pressure drop of 3.5kPa shall not be less than the times shown in Table 1 (Column B) forlengths equal to or less than the length shown in Table 1 (Column C).

Table 1: Exfiltration Test – Low Pressure Air Testing (OPSS 410)

Column A Column B Column C Column D

Nominal Pipe

Size(mm)

Minimum

Time(min:sec)

Length of Pipefor Minimum

Time(m)

Time Per Unitfor Longer

Lengths ofPipe* (sec/m)

100 1:53 182 0.623150 2:50 121 1.140200 3:47 91 2.493250 4:43 73 3.893300 5:40 61 5.606375 7:05 48 8.761450 8:30 41 12.615525 9:55 35 17.171600 11:20 30 22.425675 12:45 27 28.382750 14:10 24 30.040825 15:35 22 42.397

900 17:00 20 50.450

*If the length of the test section is greater than the length shown in Column C, the testing time shall be the product of the length of the test section

multiplied by the value in Column D (i.e. Minimum time = test length x Column D).




5

Determination o f Acceptance

If the time shown in Table 1 for the designated pipe size and length elapses before the air pressure drops 3.5kPa,the section undergoing test shall have passed and shall be presumed to be free of defects. The test may bediscontinued once the prescribed time has elapsed even though the drop 3.5kPa has not occurred.

Determination of Failure

If the pressure drops 3.5kPa before the appropriate time shown in Table 1 has elapsed, the air loss shall beconsidered excessive and the section of pipe shall be determined to have failed the test.

In the event that air exfiltration testing on the sanitary sewer system or any section thereof fails, and/or leak repair isunsuccessful, the use of other test methodology at the discretion of the Municipality or their Qualified Representativemay be permitted. The Municipality or their Qualified Representative can also request air exfiltration testing againonce the repair is complete. The Contractor may conduct a water infiltration test in accordance with Section 2.4 toestablish whether the 0.0375 litres/millimeter diameter /100 metres of pipe sewer/hour maximum allowable infiltrationrate is being exceeded. If the field conditions do not allow for infiltration test due to low groundwater table, a waterexfiltration test in accordance with Section 2.5 may be used upon written approval from the Municipality or theirQualified Representative.

If the air test on the sanitary sewer system or any section thereof fails, but the water infiltration or exfiltration test onthe sanitary sewer system or section thereof passes, the sanitary sewer system or section thereof shall be deemedacceptable. However, the Contractor shall be responsible for repairing all visible leaks regardless of the ability of thesanitary sewer system or section thereof to pass any established test criteria specified in this Guideline.

2.4 Infiltration Test

Standard practice for testing, equipment used, and other specifications shall follow OPSS 410, ASTM C969M and asnoted herein

The rate of infiltration into the sanitary sewer system shall not be in excess of 0.0375 litres/millimeter diameter /100metres of pipe sewer/hour.

Infiltration test shall be conducted only where the ground water level at the time of testing is 600mm or more abovethe crown of the pipe for the entire length of the test section, otherwise infiltration will be considered an invalid watertightness test.

Prior to testing, discontinue dewatering operations at least three (3) days before conducting the test and allow thegroundwater level to stabilize. Measure groundwater levels in accordance with Section 5.

A V-notch weir or other suitable measuring device shall be installed at the downstream end of the test section.Infiltrating water shall be allowed to build up behind the weir until the flow through the V-notch has stabilized. Severaltests (minimum three) at 15-30 minutes intervals shall be performed to ensure that the flow through the weir issteady and not changing. The rate of flow shall then be measured and shall not exceed the maximum allowableinfiltration calculated for the test section.




6

2.5 Exfil tration Test - Water

Standard practice for testing, equipment used, and other specifications shall follow OPSS 410, ASTM C969M and asnoted herein.

Exfiltration tests utilizing water shall be conducted where the groundwater level is lower than 600mm above the

crown of the pipe or the highest point of the highest service connection included in the test section and only whenspecified by the Municipality or their Qualified Representative.

The leakage at the end of the one (1) hour test period shall not be in excess of 0.0375 litres/millimeter diameter/100metres of pipe sewer/hour.

An allowance for each maintenance hole included in the test section shall be made in accordance with theexfiltration rate for maintenance holes detailed in Section 4.

Water shall be added to the pipeline prior to testing until there is a head in the upstream maintenance hole of thegreater of 600mm minimum over the crown of the pipe or above the groundwater level (refer to Section 5 forGroundwater Measurement).

2.6 Joint Test – Concrete Pipe (Greater than 600mm Diameter)

Standard practice for testing, equipment used, and other specifications shall follow ASTM C 1103M and as notedherein.

This test shall be used when groundwater levels are less than 600mm above the crown of the pipe and only whenspecified by the Municipality or their Qualified Representative.

When directed to utilize this test method, all joints shall be tested unless otherwise directed by the Municipality ortheir Qualified Representative.

Equipment used shall be made specifically for joint testing of pipelines.

2.6.1 Supplementary Joint Testing

Standard practice for testing, equipment used, and other specifications shall follow ASTM C 1103M and as notedherein.

This test shall be used as an additional supplementary test only when specified by the Municipality or their QualifiedRepresentative. After successful water tightness testing, supplementary joint testing is to be completed as anadditional pass/fail test on selected joints on all precast concrete pipes greater than 600mm in diameter whenspecified by the Municipality or their Qualified Representative.

Representative testing on 5% of all joints, joints selected to be approved by the Municipality or their Qualified

Representative, is to be conducted. Joints shall be selected evenly spaced along the complete pipe sewer. Failed

joints are to be repaired.

All joints tested shall pass the test otherwise a different representative sample (5%) shall be tested following thesame sequence.

Joints that fail to meet the verified test criteria (stated in ASTM C 1103M) shall be resealed and retested until the test

criteria can be met.




7

2.7 Mandrel Deflection Testing

Standard practice for testing, equipment used, and other specifications shall follow OPSS 410.

Mandrel deflection testing shall be performed on all Thermo-plastic pipe sewers. The mandrel deflection test shall beperformed no sooner than thirty (30) days after final backfill to road subgrade elevation has been placed.

The mandrel shall be cylindrical in shape, and constructed with an odd number of evenly spaced arms or prongs,minimum 9 in number. The minimum diameter of the circle scribed around the outside of the mandrel arms shall beequal to the allowable deflected pipe diameter ± 1mm. The contact length of the mandrel shall be measuredbetween the points of contact on the mandrel arm or between sets of prongs. This length shall not be less than thatshown in Table 2.

The mandrel shall be checked with a go-no-go proving ring. The proving ring shall have a diameter equal to theallowable deflected pipe diameter ± 0.1mm. An acceptable mandrel shall not pass through the proving ring. Theproving ring shall be fabricated from steel a minimum of 6 mm thick.

For pipes 100mm to 750mm in diameter, the allowable deflected pipe diameter is 7.5% of the base inside diameterof the pipe. For pipes greater than 750mm in diameter, the allowable deflected pipe diameter is 5.0% of the base

inside diameter of the pipe. The base inside diameter is defined in the CSA or ASTM standard to which the pipe ismanufactured.

Any section of pipe that does not allow the mandrel to pass shall be considered to have failed the deflection test.

All sections of pipe that fail the deflection test shall be repaired and retested. Re-rounding is not accepted. Retestingshal be carried out no sooner than 30 days after backfill has been placed.

Table 2 -Deflection Testing of Pipe Sewers (from OPSS 410)

Nominal Pipe Size(mm)

Mandrel ContactLength(mm)

150 100200 150250 200300 250350 300375 300400 300450 350500 400525 450600 500675 575750 675900 750

1050 9001200 1050




8

2.8 CCTV Inspect ions

Standard practice for testing, equipment used, and other specifications shall follow OPSS 409. Observations anddefect coding standard shall be in accordance with Water Research Centre Publication Manual (WRc) Manual ofSewer Classification (3rd Edition).

Closed Circuit Television (CCTV) inspection shall be performed to observe and record structural and service defects,construction features, and to assess thoroughness of cleaning.Defects to be repaired shall be in accordance with the Municipalities specifications.

Media storage shall be high quality CD or DVD (reference 409.05.01).

Each digital .MPEG file and inspection report shall consist of one pipe section only (unless a reversal is required),where two inspection records will be required. A record on CD or DVD of the internal condition of the piping systemshall be provided in addition to a printed and digital inspection report. Two copies of the digital media (CD’s orDVD’s) shall be provided and 2 copies of the printed report (reference 409.07.05.01).

The camera lens should be positioned along the center axis of the pipe. Lighting in the sewer must be sufficient toilluminate approximately 2 m ahead of the camera and be evenly distributed around the periphery of the pipe withoutloss of contrast. The camera must maintain a speed that will allow for the defects to be observed clearly. Thecamera must stop and pan special features within the pipe, such as maintenance hole interfaces, junctions, serviceconnections and major defects.

2.8.1 Video Inspection Equipment

The video shall be of quality that all minor defects (hairline cracks, etc.) are clearly visible and the colour of the pipeinspected is true to actual conditions. Should the video not be of this quality, as determined by the Municipality ortheir Qualified Representative, the Contractor shall be required to re-inspect the line to produce an acceptablequality video at no additional cost. The picture quality on the monitor shall provide a minimum continuous 460 lineresolution video picture. Linear measure through pipes must be accurate to +/- 0.5%.

2.8.2 Video Camera Transport Equipment

The camera shall be transported through the sewer by means of a rubber tired or crawler tractor. The transport unitmust be capable of passing over minor surface imperfections including but not limited to broken joints and soliddebris up to 40mm in height.

Mounting of the camera on a float or skid for tow through the sewer shall only be permitted where the condition ofthe sewer precludes the use of a tractor and where authorized by the Municipality or their Qualified Representative.If the camera is towed the supporting equipment shall not impede the view of the camera and shall be stable toensure steady and smooth progress.

The camera transport shall permit complete inspection of the sewer from the centre of the start maintenance hole tothe centre of the finish maintenance hole. A remote reading counter shall be used to measure distance travelledfrom the centre of the start maintenance hole and measurements shall be recorded in metres to the nearest 100

mm.




9

2.9 Testing Pressure Pipe Used as Gravity Sewer

Standard practice for testing pressure pipe used for gravity sewer service, equipment used, and other specificationsshall follow OPSS 412.

Test pressure shall be 1035KPa and test duration of 2 hours.

Allowable leakage shall be in accordance with OPSS 412; 0.082 litres per millimetre of pipe diameter per kilometreof pipe for the 2 hour test period.

3. Forcemain Testing Requirements

This section provides the testing requirements specific to forcemains and low pressure systems.


All forcemains for lift stations and common force mains in low pressure systems shall be tested for leakage by aHydrostatic Leak Test

Forcemain construction shall be inspected throughout the construction period for general adherence to contractspecifications and good practice.

The testing requirements follow the standards and are generally described in each subsection of this section.

Changes or deviations to the OPSS standards are as noted herein.

3.2 Hydrostatic Leak Test

Standard practice for testing, equipment used, and other specifications, shall follow OPSS 412.

A test section shall be either a section between valves or the completed forcemain. The forcemain to be tested shallbe backfilled before testing commences.

Test pressure shall be as specified in the Contract Documents or be provided by the Municipality or their QualifiedRepresentative.

The test section shall be filled slowly with water, and all air shall be removed from the pipeline. A 24-hour absorptionperiod may be allowed before starting the test. The test section shall be subjected to the specified continuous testpressure for two (2) hours.

The leakage is the amount of water added to the test section to maintain the specified test pressure for the testduration.

No leakage will be permitted (the allowable leakage is zero (0)). All leaks shall be located and stopped and the testsection shall be retested until leakage is zero (0).

All defective pipe, fittings, valves and other appurtenances discovered shall be removed and replaced with soundmaterial and tests repeated until the leakage is zero (0).




10

4. Maintenance Hole Testing Requirements


Standard practice for testing, equipment used and other specifications shall follow OPSS 407 and ASTM C1244M.

Every maintenance hole shall be chimney seal tested and visually inspected, and whereby specified by theMunicipality or their Qualified Representative shall be tested by either exfiltration water testing or infiltration watertesting. As an alternative at the discretion of the Municipality or their Qualified Representative, testing may beperformed by vacuum testing. Vacuum testing shall be conducted on un-backfilled maintenance holes in accordancewith the standards noted above.

A photographic record and inspection with condition rating shall be completed on every maintenance hole,Municipality or their Qualified Representative to provide inspection form

Maintenance holes shall be inspected during all phases of construction. Each maintenance hole shall be visuallyinspected for leakage after assembly and backfilling.

4.2 Maintenance Hole Exfil tration Water Test

Each maintenance hole shall be tested for leakage after assembly and backfilling where requested by theMunicipality or their Qualified Representative.

Leakage shall not exceed a rate of 3 litres per hour per metre of head above the lowest pipe invert in themaintenance hole.

Maintenance holes shall be repaired and re-tested, as required, until the test results are within the limits specified.Visible leaks shall be repaired regardless of the test results. The method of repair shall be per the approval of theMunicipality or their Qualified Representative

4.3 Maintenance Hole Infil tration Water Test

This test shall be used in lieu of Maintenance Hole Exfiltration Water Test only when specified by the Municipality ortheir Qualified Representative.

Standard practice for testing, equipment used, and other specifications shall follow OPSS 407 or ASTM C1244M.The test shall be conducted as an Infiltration Water Test.

4.4 Negative Air (Vacuum) Test

All Joints between the top of the casting to the bottom of the maintenance hole base shall be included in the test.

Equipment used shall be made specifically for vacuum testing maintenance holes.

A vacuum will be drawn and the vacuum drop over a specified time period shall be within the limits in the standard todetermine the acceptability of the maintenance hole.

The maintenance hole shall pass if the time for the vacuum reading to drop from 33.8 kPa of Hg to 30.4 kPa of Hg

meets or exceeds the values in the Table 4 from ASTM 1244M.

If the maintenance hole fails the initial test, necessary repairs shall be made by an approved method. The

maintenance hole shall then be retested until a satisfactory test is obtained. Visible leaks shall be repaired

regardless of the test results.




11

4.5 Chimney Seal Leakage Test

If specified by the Municipality or their Qualified Representative, installed chimney seals (an internal flexible rubberframe seal) shall be tested in accordance with this guideline.

Install the chimney seal and only the bottom expansion band in accordance with the manufacturer’srecommendation. Fully tighten the bottom band. Do not install the top expansion band.

Pull the top of the seal away from the maintenance hole’s frame and pour approximately 4 litres of water behind theseal. Observe the bottom seal for a minimum of 1 minute for leakage. No leakage shall be allowed.

If the bottom expansion band holds water without leaking, the chimney seal will have passed the test.

If the bottom expansion band has any leakage during the test time, the chimney seal will have failed the test. TheContractor shall be required to remove, replace, or reposition the bottom expansion band and retest.

5. Groundwater Measurement

Whereby the groundwater table cannot be visually monitored in terms of elevation from the pipe, the Municipality or

a Qualified Representative may request that groundwater level be measured with piezometers placed inrepresentative locations throughout the length of sanitary sewers under construction.

The contractor shall provide all materials and equipment necessary for the construction of piezometers formeasuring groundwater level and equipment to measure the water level within the piezometer.

Piezometers shall be placed in the excavation alongside the sewer at approved locations.

Piezometers shall be constructed of 19mm PVC pipe and shall be equipped with 1.0m well screens or sections of aslotted PVC pipe at the end with gravel pack filled in around the screen to approximately 0.5m - 1m above and belowthe screen.

All casing and screen material shall be assembled and installed with sufficient care to prevent damage to the

sections and joints.

Prior to installation an end cap must be placed at the bottom of the PVC piping. During installation, a cap shall beplaced on top of the casing to avoid materials from entering the PVC piping.

A completed monitoring piezometer shall be sufficiently straight to allow passage of measuring devices.

Provide a Water Level Indicator designed to measure groundwater levels in small diameter tubes and piezometers.The cable reel device shall be equipped with a probe that on entry to water completes an electrical circuit and sendsa signal back to the reel where a light and audible buzzer are activated. The water level is then determined by takinga reading directly from the cable at the top of the piezometer casing. Prior, during and after testing of the sewer, thestatic water level shall be recorded.




12

6. Referenced Standards

1. OPSS 407 Construction Specification for Maintenance Hole, Catch Basin, Ditch Inlet and Valve Chamber

Installation

2. OPSS 409 Construction Specification for Closed-Circuit Television Inspection of Pipelines3. OPSS 410 Construction Specification for Pipe Sewer Installation in Open Cut

4. OPSS 412 Construction Specification for Sewage Forcemain Installation in Open Cut

5. ASTM C924 - 02(2009) Standard Practice for Testing Concrete Pipe Sewer Lines by Low-Pressure Air Test

Method

6. ASTM C969M - 02(2009) Standard Practice for Infiltration and Exfiltration Acceptance Testing of Installed

Precast Concrete Pipe Sewer Lines (Metric)

7. ASTM C 1103 Standard Practice for Joint Acceptance Testing of Installed Precast Concrete Pipe Sewer

Lines

8. ASTM F1417 - 11 Standard Test Method for Installation Acceptance of Plastic Gravity Sewer Lines Using

Low-Pressure Air

9. ASTM C1244M - 05ae1 Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure

(Vacuum) Test Prior to Backfill (Metric)10. Water Research Centre Publication Manual (WRc) Manual of Sewer Classification (3

rd Edition).




Appendix A:

York Region and Local Area Municipalities

Sanitary Sewer Inspection, Testing and

Acceptance Flow Charts for Concrete and Thermo‐

Plastic Pipes and Maintenance Holes




Appendix B:

Glossary of Terms




Borehole: A hole drilled into the earth into which well casings or piezometers may be installed.

CCTV: Closed‐circuit television. An inspection method using a closed‐circuit television camera system

with appropriate transport and lighting mechanisms to view the interior surface of sewer pipes and

structures.

CD: Compact disc.

Contract: An agreement between two or more parties, one that is written and enforceable by law; the

agreement between the municipality and the contractor for the construction of a sanitary sewer

system or components.

Contractor: A properly licensed individual of company that agrees to furnish labour, materials,

equipment and associated services to perform the work as specified for a specified price.

Crown: The top of the internal (the inside) cross section of the pipe.

Deflection: Any

change

in

the

inside

diameter

of

the

pipe

resulting

from

installation

and

imposed

loads. Deflection may be either vertical or horizontal and is usually reported as a percentage of the

base (un‐deflected) inside pipe diameter.

Exfiltration: Leakage or discharge of flows from sewer systems into the ground through leaks in pipes,

joints, Maintenance holes or other sewer system appurtenances.

Forcemain: A pipeline that conveys sewage from one area to another under pressurized flow. The

word "force" refers to the fact that the pipeline uses pressure, provided by pumping stations, rather

than gravity to move flows.

Good Practice: Is the proven and accepted methods, procedures, and practices that provide

appropriate, cost

‐effective,

and

well

‐documented

solutions

to

meet

user

‐requirements

and

compliance with applicable regulations.

Groundwater Level (table): Upper surface of the zone of saturation in permeable rock or soil.

Groundwater: All water under the surface of the ground whether in liquid or solid state. It originates

from rainfall or snowmelt that penetrates the layer of soil just below the surface.

Head: Fluid mechanical energy per unit weight of fluid, which correlates to the elevation that water

will rise to, also hydraulic head.

Hydrostatic Pressure: The pressure equal to that which is (or would be) induced by the weight of the

overlying column

of

water,

the

height

of

water

above

the

point

in

question.

Infiltration: The water entering a sewer system, including building sewers, from the ground through

such means as defective pipes, pipe joints, connections or maintenance hole walls. Flow deriving from

groundwater tends to be continuous and dependent on groundwater levels. Infiltration can

experience seasonal changes as the groundwater table varies. Infiltration does not include inflow




Inflow: Water other than wastewater that enters a wastewater system and building sewer from

sources such as roof leaders, cellar drains, yard drains, area drains, foundation drains, drains from

springs and swampy areas, maintenance hole covers, cross connections between storm drains and

sanitary sewers, catch basins, cooling towers, storm‐water, surface runoff, street wash waters, or

drainage

Inspection: The act of inspecting. An official examination or review of the work completed or in

progress to determine its compliance with contract requirements.

Invert: The lowest point of the internal cross section of a pipe or sewer.

Joint: The location at which two pieces of pipe or a pipe and a fitting are connected. The joint may be

made by a mechanical device, such as threads or ring seals, by heat fusion and cementing, or by

finished ends made to fit together (bell and spigot).

Lateral: Any pipe connected to the main sewer.

Maintenance (Manhole) Components: The sections of a maintenance hole include the base, riser

(which may include a conical section as the top riser), cover section (a conical section is built to

include the cover section), grade rings or chimney to adjust to final grade and the maintenance hole’s

frame and cover.

Maintenance Hole (Manhole): Sewer access large enough for a person to enter to troubleshoot

service problems or perform maintenance work.

Mandrel: Rigid device ‐ spindle or an axle – pulled through flexible thermo‐plastic pipe to test

alignment and deflection.

Monitoring Well: Well used to obtain water quality samples or measure groundwater levels.

Municipality: Corporation

of

a municipal

district

being

either

The

Regional

Municipality

of

York

or

one

of the nine local municipalities. The corporation that the provincial government, through an act of the

legislature, has granted decision‐making power over a part of the province.

Operator/Owner: Party that has operational control over construction plans and specifications,

including the ability to make modifications to those plans and specifications

Performance Test (Testing): Technical investigation done to determine or validate the characteristics

of the product under test.

Piezometer: Measuring device for groundwater level. This typically is an instrument that measures

fluid pressure or level at a given point.

Plastic: Material that contains as an essential ingredient one or more organic polymeric substances of

large molecular weights, is solid in its finished state, and, at some stage in its manufacture or

processing into finished articles, can be shaped by flow.

Qualified (Authorized) Representative: One hired by the owner or client to give professional advice

and may be a consultant hired by the Municipality. A qualified individual authorized by the owner to

assist in the administration of a specific construction contract.




Sanitary sewer: Sewer receiving and carrying liquid and water‐carried wastes under gravity flow, to

which storm, surface, or groundwater are not intentionally admitted.

Sewage (or wastewater) ‐ Used water and added waste of a community which is carried away by

drains and sewers

Sewer System:

Any

system

of

pipes,

drains,

pumping

works,

equipment,

structures,

and

other

things

used for the collection, transportation or disposal of wastewater, but does not include any building

drain, plumbing, or building sewer.

Specifications: Detailed, exact statement of particulars, especially statements prescribing materials

and methods, and quality of work for a specific project.

Standard: Prescribed, concise set of conditions and requirements that must be satisfied by a material,

product, process, procedure, convention, or test method, and the physical, functional, performance

and/or conformance characteristics thereof.

Thermo‐plastic: Plastic that repeatedly can be softened by heating and hardened by cooling through a

temperature range

characteristic

of

the

plastic,

and

that

in

the

softened

state

can

be

shaped

by

flow

into articles by molding or extrusion. Thermo‐plastic pipe is available in a variety of plastic

compositions including the most common in sewer systems being Polyvinyl chloride (PVC),

Polyethylene (PE), and Acrylonitrile‐butadiene‐styrene (ABS).

Visible Leak: Ingress or egress of water from the sewer system that can be seen by an inspection.

V‐Notch Weir: Structure, such as a bulkhead or plate, across the pipe to intercept the water flowing

down the pipe in order to determine flow rate. A V‐Notch weir has a specially shaped ‘V” opening or

notch. The V‐notch, sharp‐crested weir is especially good for measuring low flow rates.

Water‐Tightness: Put together in such a way that no water can get in or through‐ except in quantities

allowed

by

the

performance

test.





Appendix E:

Long Term

Water

Conservation Strategy

Annual Report to Council




THE REGIONAL MUNICIPALITY OF YORK

Environmental Services CommitteeMarch 7, 2012

Report of theCommissioner of Environmental Services

LONG TERM WATER CONSERVATION STRATEGY ANNUAL REPORT

1. RECOMMENDATION

It is recommended that:

1. The Regional Clerk circulate this report to the Clerks of the local municipalities andthe Director of Central Region at the Ontario Ministry of the Environment.

2. PURPOSE

The purpose of this report is to update Council on the status of water conservation andefficiency programs and the Long Term Water Conservation Strategy Annual Reportwhich meets the conditions of approval for the Southeast Collector Trunk SewerIndividual Environmental Assessment. York Region is the first Regional Municipality, inOntario, required by the Ministry of the Environment to meet such unique and stringentconditions related to water conservation.

3. BACKGROUND

Ministry of the Environment requires an annual report detailing progress ofthe Long Term Water Conservation Strategy to meet conditions of approvalfor the Southeast Collector Trunk Sewer Individual Environmental

Assessment

Approval of the Southeast Collector Trunk Sewer Individual Environmental Assessmentincluded several conditions regarding the development, implementation and monitoringof a Region-wide Water Conservation and Efficiency Strategy and Inflow and InfiltrationReduction Strategy. The environmental assessment conditions of approval also required

an annual report detailing the progress of implementing these Strategies which are to besubmitted to the Ministry of the Environment twelve months after finalizing the strategy.

On March 31, 2011 York Region submitted the Long Term Water Conservation Strategyto the Ministry of the Environment which met the environmental assessment conditionsof approval for the Southeast Collector Trunk Sewer. York Region will submit the firstannual report to the Ministry of the Environment on March 31, 2012 to provide an updateon the status of the targets and implementation plans set out in the Long Term Water



Long Term Water Conservation Strategy Annual Report


Conservation Strategy. Targets that are not met require mitigation plans to identifyenhanced initiatives to be implemented in order to meet the targets, including theresources available.

4. ANALYSIS AND OPTIONS

York Region is on schedule to meet targets set in the Long Term WaterConservation Strategy

The Long Term Water Conservation Strategy identifies five year targets and timelines fortotal water savings and residential per capita demand. The strategy also sets out theannual participation rates and program implementation status necessary to meet these fiveyear targets.

The Water for Tomorrow water-efficiency program is designed to provide the tools York

Region residents need to conserve water in the home, in the garden and at work.Participation in this program for 2011 is estimated to be saving 1.8 million litres of water per day (MLD). This is on track to meet the Long Term Water Conservation Strategytarget of 10 million litres of water saved per day by 2016 through existing York Regionled water conservation programs and 3.4 million litres of water from new programsidentified in the strategy.

Baseline residential per capita demand in 2011 was estimated to be 252 litres per capita per day (lpcd) in the Long Term Water Conservation Strategy. A summary of long termvision targets is shown in Table 1 below.

Table 1Long Term Water Conservation Strategy Targets

2011 2016 2021 2026 2031 2051

Long Term WaterConservation Strategy Target

252*lpcd

241lpcd

233lpcd

221lpcd

206lpcd

150lpcd

Total Estimated Water Savings13

MLD19

MLD34

MLD73

MLD244

MLD

*2011 value is baseline

Total water saved since Water for Tomorrow program began in 1998 is 24.2 million litresof water per day. That is equivalent to the average daily demand of approximately100,000 residents in York Region in 2011.





Collaboration with local municipalities to share water billing data overcamea major constraint identified in the Strategy

One of the main constraints identified in the Long Term Water Conservation Strategy

was the lack of access to water demand data collected from water meters as part of localmunicipal water billing practices. The Strategy stated that “securing access to usable,consistent water demand data is absolutely imperative for the effective execution andongoing monitoring of the Strategy”. Regional staff worked closely with each of the ninelocal municipalities to review water billing data for 2010 and to develop a process toshare data at regular intervals starting in 2012. Access to complete water demand data hasenabled the Region to begin to develop a more accurate breakdown of water demand bysector, including residential, industrial, commercial and institutional and non-revenuewater. A certain amount of non–revenue water is expected in municipal systems. Typicalnon-revenue water accounts for approximately 10-15 per cent of total flows in municipalsystems in Canada. Non-revenue water is water supplied, but not metered, for example

water used for emergency services such as firefighting, operational purposes such as proactive system maintenance flushing, loss due to leaks, etc.

Estimated total water demand by sector developed through preliminary analysis of 2010water billing data and York Region supply data is summarized by residential demand,industrial, commercial and institutional demand and non-revenue water in Table 2 below.

Table 22010 Water Demand by Sector

Sector Total 2010 Demand

Residential 213.8 MLDIndustrial, Commercial and Institutional 95.8 MLD Non-Revenue Water (system maintenance, fire fighting etc.) 30.1 MLD

Total Demand 339.7 MLD

As recommended in the 2009 Water and Wastewater Master Plan Update, the Long TermWater Conservation Strategy assumed total water demand split between residential andIndustrial, Commercial and Institutional demand was 67 per cent and 33 per centrespectively with non-revenue water assumed to be part of industrial, commercial and

institutional demand. Preliminary analysis of water billing data along with York Regionsupply data shows that the 2010 Regional demand breakdown for residential isapproximately 63 per cent with industrial, commercial and institutional demand at 28 percent and non-revenue water at 9 per cent.

Per capita demand targets in the Strategy are based on previously limited data availableand assumptions from the Water and Wastewater Master Plans. The Strategy forecastedthe 2011 residential water demand to be approximately 252 litres per person per day.





Analysis using water billing meter data readings along with updated population estimatesshow 2010 per capita residential demand is approximately 220 litres per person per day.

Further analysis of additional billing data will be conducted to confirm that the lower percapita demand is accurate and not an anomaly for 2010. The impact of a lower per capita

demand will result in a new 2011 baseline for water demand in York Region and requirestrategy targets to be updated.

Water for Tomorrow incentive programs saved 1.8 million li tres of water perday in 2011

Table 3 summarizes the targets of various incentive programs offered by York Region,2011 participation and estimated water saved from each program. Due to continuedsuccess of the residential toilet rebate program, program marketing for other rebatefixture programs has been limited to avoid budget constraints. Overall water savingscontinue to be on schedule to meet 2016 total water saved targets.

Table 3Water for Tomorrow Incentive Program Targets and 2011 Participation

Program Strategy Target 2011 Actual EstimatedWater Saved

(litres per day)

Residential Toilet Rebates 12,000 rebates 29,782 rebates 1,749,000

Single Family ResidentialHumidifier Rebates

1,000 rebates 57 rebates3,200

Multi-unit ResidentialWashing Machine Rebates

150 rebates 0 0

Rain Barrels Sales 4,000 rain barrels 2,778 rain barrels7,400

Industrial. CommercialInstitutional (ICI) ToiletRebates

6,250 rebates2 facilities,19 rebates

6,000

ICI Washing MachineRebates

120 rebates1 facility,10 rebates

2,700

ICI Water Audits andBuy Back

10 audits,1.5 buy back

9 audits complete,1 application for buy back pending

0





Total water saved in 2011 through Water for Tomorrow programs is approximately 1.8million litres of water per day, for a cumulative total of 24.2 million litres of water saved per day since program began in 1998. The total capital cost to implement these programsin 2011 was $3.68 million. In 2011 Water for Tomorrow programs cost approximately

$2.07 per litre of water saved per day.

Continual program evaluation and improvement ensures York Region stayson target

Mitigation plans for programs not meeting targets have been developed as required byMinistry of the Environment conditions of approval. Total rebate participants far exceedthe 2011 target. Staff will continue to monitor and evaluate the residential toilet rebate program against best in class jurisdictions and other Ontario municipalities to ensuretargets are met within annual budgets. Continued monitoring and evaluation of the potential uptake for all other incentive programs will result in increased marketing to

various sectors or, if required, an update of the targets based on the potential marketwithin York Region.

York Region’s standard for encouraging water efficient fixtures through incentive programs exceeds the requirements currently stipulated in the Ontario Building Code.Updates to the Ontario Building Code to incorporate higher efficiency fixtures couldallow York Region to target rebates to high water users. This could reduce the cost of therebate program by approximately $500,000 annually.

Based on high cost and low water savings, staff propose that rain barrelsubsidy and sales events be discontinued

Peer reviewers of the Long Term Water Conservation Strategy, including the Alliance forWater Efficiency, recommended the Region evaluate the efficacy of rain barrel salesevents as part of a water conservation program and consider discontinuing the incentive ifit does not prove to be cost effective. An evaluation of York Region rain barrel subsidyand sales events from 2009 to 2011 has demonstrated that due to high cost and low watersavings, rain barrels are not a cost effective component of York Region’s future waterconservation program.

• If used regularly, each participating household could save approximately 1,100 litres per year compared to one participating household changing from 13 litre toWaterSense® labelled toilets can save approximately 49,000 litres per year

• Based on surveys and inspections completed on randomly chosen participants eachyear, 77 per cent of rain barrels purchased at York Region events were installedwithin their first year

• Need for winter maintenance and re-installation of rain barrels lowers the likelihoodof installation each year

• Sales in 2011 declined significantly with only 2,778 out of 4,000 available rain barrels sold





Coordination of three sales events for 4,000 rain barrels cost $74,000. In addition, YorkRegion provided an average subsidy of $14 per rain barrel, putting the total cost of thesales events at $130,000. In 2011, the rain barrel program cost approximately $17.50 perlitre of water saved, this is considerably higher than the average cost for all Water for

Tomorrow programs of $2.07 per litre of water saved. Further, the significant drop ininterest for the 2011 sales events indicates that market saturation has been reached.

Over 13,000 rain barrels have been sold and raised the awareness of water conservationand summer water use. Rain barrel subsidies and sales events are not considered a costeffective program to reduce water demand and will no longer be offered as part of Water

for Tomorrow. Rain barrels are readily available at York Region retailers both online andseasonally in-store. Many sizes and varieties are available at costs ranging from $80 to$230. More cost effective programs to reduce outdoor water use are being developed as part of the Long Term water Conservation Strategy implementation plan.

Water for Tomorrow prov ides engaging education programs while seekingnew opportuni ties and partnerships

In addition to the ongoing successful education programs offered by Water for

Tomorrow, staff are collaborating with both Toronto Region Conservation Authority andLake Simcoe Region Conservation Authority to develop updated youth education programs.

Water savings resulting from education programs cannot be directly estimated in thesame manner as a fixture rebate. However, overall education contributes to lower percapita demand and is required to support water conservation program messaging anddrive long term behaviour changes necessary to meet long term goals. Education programs and targets set forth in the Strategy are summarized in Table 4 below.

Table 4Water for Tomorrow Education Program Summary

Program Strategy Target 2011 Actual

Water Efficiency Seminars 20 seminars 20 seminarsFree Landscape Visits 1,000 visits 821 visitsYork Children’s Water Festival 5,000 grade 4 students 5,000 grade 4 students

Free landscape visits have been offered through Water for Tomorrow for over ten yearsand popularity is beginning to decline. A more targeted approach to reduce outdoor wateruse is being developed as part of the Long Term water Conservation Strategyimplementation planning.





York Region s taff continue to improve programs targeting newdevelopment and municipal facilities

York Region currently has two sustainable development programs Sustainable HomesIncentive Program (SHIP) and Sustainable Development through LEED® aimed at low

density and high density respectively. Both of these programs provide an incentive ofwater and wastewater servicing allocation bonus and contain a strong water conservationcomponent.

In 2011, 218 high density housing units have been committed to be built as part of theRegion’s program. Developers have not yet committed to participating in the SHIP program. In November, 2011 Community Planning and Environmental Services staffheld a workshop with members of Building Industry and Land Development Association(BILD) to discuss challenges and opportunities for improving participation in YorkRegion’s programs. At minimum, the goal is to increase participation to meet targets ofthe Long Term Water Conservation Strategy and the Regional Official Plan.

Environmental Services and Property Services staff have begun to incorporate similarwater conservation measures, such as WaterSense® labelled fixtures and maximum flowrates into new municipal building standards and retrofit standards at York Regionfacilities.

Pilot projects prov ide an oppor tunity to test new and innovative programsin York Region

York Region has been conducting several pilot projects recommended in the Long TermWater Conservation Strategy, including a partnership with the Toronto RegionConservation Authority and the Town of Richmond Hill through the Sustainable Neighbourhood Retrofit Action Plan project in the Lake Wilcox community. This pilotincludes a “Front-yard Makeover” eco-landscape demonstration on two residential frontyards. The neighbourhood will be observed overtime to determine if the demonstrationfront-yards have influenced change within the neighbourhoods residential landscaping.

York Region is conducting an irrigation reduction pilot with ten industrial, commercialand institutional and multi-unit residential properties. The pilot includes a free analysis ofan automatic irrigation system, with recommendations to reduce water wasted throughirrigation technologies, equipment deficiencies and practices for each property. Anincentive is available on the purchase and installation of a controller, water savings willdocumented by a final audit. This pilot will wrap up in 2012 and if deemed a costeffective water conservation program, full implementation will follow in late 2012.

The Strategy recommends piloting an Expedited Approvals Process as an alternativeincentive for “green building” programs to the existing incentive available in SustainableDevelopment through LEED® and SHIP. The “York Region Innovative and SustainableDevelopment Approvals Project” application for funding was approved by the Provincein late 2011. The purpose of this pilot project is to test efficacy of employing an





expedited municipal planning approvals process as an incentive for builders anddevelopers to construct “green buildings” specific to the needs of York Region. TheRegion has partnered with the Toronto Region Conservation Authority on this project andis exploring opportunities for partnership with local municipalities and developers.

Water audit underway to identify prior ity areas for leak reduction

Water loss management is a key program component in the Long Term WaterConservation Strategy. The Region is currently conducting a water audit using theInternational Water Association and American Water Works Association best practicemethods to assess current levels of non-revenue water and water losses, includingleakage. The water audit will be distributed to local municipalities for review andcomment in April 2012. The results will identify priority municipalities to conduct adistribution system leak reduction program.

York Region continues to engage and seek input from the public during

implementation of the Strategy

As recommended in the Strategy, an essential part of creating a culture of waterconservation and efficiency in York Region is to establish a multi-stakeholder advisorycommittee to be a forum for ongoing advice, feedback and guidance to York Region withrespect to specific water conservation and efficiency projects. The role of the advisorycommittee will be to:

• Advise Region staff on strategies and approaches related to implementation of LongTerm Water Conservation Strategy

• Provide sector-specific insights and ideas

• Serve as water conservation program ambassadors to larger Regional community

•

Help identify champions in various sectors.

The advisory committee will specifically provide input related to:

• Public perception on programs, initiatives, and by-laws

• Enhancements or modifications to existing programs

• Increasing uptake in sector specific areas

• Public campaigns and messaging

Advisory committee members will include representatives from a wide range ofinterested and affected stakeholder organizations, as well as members of the public, a listof members is attached in Attachment 1. The advisory committee will meet six times per

year. The first meeting will be held in March 2012.

Link to Key Council–approved Plans

Integrating water conservation programming with water and wastewater infrastructure planning and sustainable community planning has been and continues to be a Regional priority. This commitment is reinforced in both the 2011-2015 Strategic Plan and theRegional Official Plan.





An objective of the Strategic Plan states that the Region will focus on continuing todeliver and sustain critical infrastructure necessary to support our growing communities by identifying and leveraging capacity available in the existing infrastructure. Onemethod to achieve this objective is through increased water conservation per capita.

An objective of the Regional Official Plan is to ensure adequate water resources fortoday’s residents and future generations, through conservation and efficiency.

• To develop a long term, innovative strategy for water conservation and efficiency

• To investigate full cost pricing of water, in co-operation with local municipalities, toencourage water conservation and facilitate system improvements

• To pursue with local municipalities and conservation authorities, the implementationof water efficiency innovations, such as water reuse systems, rainwater harvestingand innovative stormwater management

• To investigate innovative wastewater treatment technologies and approachesincluding grey water reuse, naturalized wastewater treatment and water recycling inresidential, commercial, institutional and industrial uses

The Regional Official Plan also highlights specific policies to ensure water conservationis integrated into new developments to create high-quality sustainable communities byencouraging new buildings to achieve greater water conservation efficiency thancurrently stipulated in the Ontario Building Code.

5. FINANCIAL IMPLICATIONS

Capital expenditures for water conservation programs in 2011 totalled $3.68 million, thisincluded the completion of the Long Term Water Conservation Strategy. The 2012 10-

year Capital Plan has committed to $40.8 million over 10 years to deliver waterconservation programming.

Water conservation programs are delivered at less than the cost of building or expandingwater systems. Between 1998 and 2004 the Regional Municipality of York Water for

Tomorrow conservation program deferred an estimated $40 million in new infrastructureat a cost of only $10 million. An analysis of the cost of programs recommended in theLong Term Water Conservation Strategy and their impact on deferring capital costs iscurrently under evaluation and will be available in the 2012 annual report to becompleted in March 2013. Reduced water use comes with increased pressure on waterrates. This will be considered as future updates on the rates are brought forward to

Council.

6. LOCAL MUNICIPAL IMPACT

Local municipal staff have been and will continue to be involved in developing andimplementing the Long Term Water Conservation Strategy. Local municipal staff playeda critical role in sharing water demand data collected through water billing to support the




Region in meeting all Ministry of the Environment conditions. Accurately monitoring theamount of water saved will ensure that programs and initiatives remain on target now andin the future. To ensure ongoing success in water conservation is achieved, continuedcooperation by the local municipalities is essential.

It is the expectation of the Ministry of the Environment that the Region and localmunicipalities collaborate to deliver the program components outlined in the Long TermWater Conservation Strategy.

7. CONCLUSION

York Region is on track to meet the water saving targets outlined in the Long TermWater Conservation Strategy. Access to water data from the local municipalities hasallowed the Region to create a 2011 baseline for water demand by sector and residential per capita unit rate. The targets in the Long Term Water Conservation Strategy have been

updated to reflect the more accurate and baseline.

An annual report detailing status of the targets and implantation plan will be submitted tothe Ministry of the Environment and Southeast Collector Advisory Committee on March31, 2012, twelve months after submitting the Strategy.

For more information on this report, please contact Laura McDowell, Director,Environmental Promotion and Protection at 905-830-4444 Ext. 5077.

The Senior Management Group has reviewed this report.

Recommended by:

Erin Mahoney, M. Eng.

Approved for Submission:

Bruce Macgregor

I I Reduction Strategy Annual Report 2012

Documents

Transcript of I I Reduction Strategy Annual Report 2012