Report to: General Committee Date
Report Authored:
SUBJECT: Application to
Building
PREPARED BY: Peter Loukes, P.Eng., Director, Operations
Ext. 4894
RECOMMENDATION:
1) That the report dated November 23, 2009 entitled “Application to Building Canada Fund Stimulus Fund for Demonstration Project - Sanitary Mainline and Sewer Connection Relining in West Thornhill” be received;
2) And That the Commissioner of Community and Fire Services be directed to submit an application for a demonstration project as outlined in the report to the Government of Canada and the Province of Ontario under the Building Canada Fund Stimulus Fund program;
3)
And That if the application in
recommendation 2) is successful that the Town proceed with the project at an
upset limit of $7,500,000 on a 1/3 shared basis with the
4)
And That if the application in
recommendation 2) is successful that the Town of Markham’s share of $2,500,000 for
the project be funded from the 2010 Sanitary Sewer System
Upgrade/Rehabilitation Program budget, and the remaining budget from 2009 and
2008 Sewer System Upgrade Program;
5)
And That staff be authorized to
release a Request for Proposal (RFP) to the market place for construction of
Sanitary Mainline and Sewer Connection Relining in
6)
And That Council delegates the
award authority for the construction of the Sanitary Mainline and Sewer
Connection Relining in West Thornhill to the Chief Administrative Officer (
7) And That if the application in recommendation 2) is successful, that the authority for the approval of tendered Consulting Services for design, contract management, project administration and inspection be delegated to the Commissioner of Community and Fire Services.
8) And That if the application in recommendation 2) is successful, that the authority for the approval of the Third Party Evaluator Consultant be delegated to the Commissioner of Community and Fire Services.
9) And Further that Staff be authorized and directed to do all things necessary to give effect to this resolution.
PURPOSE:
1.
To obtain approval to submit a
request for funding to the Federal and Provincial governments under the
Building Canada Fund (
2.
To obtain approval from Council,
if application for funding is successful, to issue a Request for Proposal (RFP)
for the demonstration project utilizing new innovative product and installation
methods of sewer relining and award authority for the construction of the
Sanitary Mainline and Sewer Connection Relining in West Thornhill to the Chief
Administrative Officer (
3.
To obtain approval from Council,
if application for funding is successful, that the authority for approval of consulting
services RFP for design, contract management, project administration and
inspection of the Sanitary Mainline and Sewer Connection Relining in West
Thornhill project be delegated to the Commissioner of Fire and Community
Services.
4. To obtain approval from Council, if the application for funding is successful, that the authority for approval of the Third Party Evaluator consultant for this project be delegated to the Commissioner of Fire and Community Services.
The
One
area identified for improvement was controlling storm water from entering the sanitary
sewers in flood prone areas so that those sewers do not become overwhelmed during
major storms and flood basements.
Pilot
programs such as the “Every Downspout Counts”, which helps residents disconnect
roof downspouts identified as being connected to the sanitary sewer, have
helped to reduce the flow of storm water directly into the sanitary sewer. However, in the older areas of Town it has
been shown that storm water can infiltrate the ground and find its way into the
sanitary sewers through various cracks and leaks in the mainline sewers as well
as in the service connections to each house.
Spot repairs can help to stop the infiltration, but if cracks and
fractures continues, eventually sewers and especially service connections will
need to be relined or replaced.
The multi-stage remedial inflow / infiltration (I/I) Reduction Strategy in this pilot area have an estimated potential peak extraneous flow rate reduction as follows:
• Roof Downspout Disconnection Program – 10-15%
• Manhole Lid and Chimney Sealing – 30-35%
• Lining of Mainline Sanitary Sewers and Laterals – 35-40%
During major
storm events, roof downspout disconnection from sanitary system and manhole
sealing remedial measures have the biggest impact on reduction of the peak I/I
in the system (from 50 to 70%). In order to provide the Town design standard
level of service protection against basement flooding, it is essential that all
three I/I reduction measures be implemented.
Roof downspout
disconnection program and manhole lid sealing has been completed in the pilot
area. The lining of both sanitary mainline sewers and laterals up to the house
is estimated to reduce at a maximum 20-30% of the annual volume in the sewer system. With improved hydraulic pipe conditions
existing pipe flow capacity will be increased. Further, sewer lining is
expected to extend the life expectancy of the sanitary collection system by a
minimum of 50 years.
When completed,
the three strategy measures should reduce up to 80% of the extraneous flows on
the sanitary sewers system and should provide basement flooding protection independent
of the storm events. Approximately, 20% of flow from various minor sources
cannot be fully eliminated.
OPTIONS/ DISCUSSION:
Stimulus
Funding is Still Available
The Town has had several discussions with
both the Federal and Provincial governments and has identified that there is
still uncommitted stimulus funding available. Senior management and staff
determined that the funding from the
Organizing and executing the relining work is
straight forward and is deemed repair/maintenance work so it does not require
an EA or other such approval. The work
can be done year round and the
The
Demonstration Project could be up to $7.5M in scope
Appendix ‘A’ shows the proposed “Pilot” project
area. The area consists of 9,014 m of sanitary sewers and 760 laterals. The estimated
cost of $7.5M includes the relining of the sanitary mainline and lateral
sewers, consulting services for design and contract administration and
inspection, including third party project post evaluation. In anticipation of I/I
reduction projects in the Thornhill area,
As a demonstration project, it is intended
that new eco friendly materials for trenchless sanitary sewer relining installation
will be specified. A new method of relining sewer laterals from the mainline
without intervention or excavation will be established and specified. Various
liner design parameters and materials will be tested and installed. Post
evaluation of the liners will be conducted to determine the best relining
solution for various sewer conditions and to determine the estimated lifecycle
extension. Improvement in the flow capacity due to increase in pipe flow coefficient
will also be verified.
The proposed
work for this Stimulus Funding project for sanitary mainline and sewer connection
relining will complete the strategy of I/I reduction within the
This will position the Town as a leader in
green technology of trenchless rehabilitation methods for I/I reduction by
using environmentally friendly products. It will also demonstrate the complete
trenchless method of sanitary sewer lateral rehabilitation from the mainline to
the house.
External
Consulting Services Requirements
To complete this project on time
as required under the Stimulus Funding program, external consultants for design,
contract management, project administration and inspection including third
party project evaluation will be contracted. An RFP or tender will be issued
for this external consultant needs. To expedite the contract award process, authority
is recommended to be delegated to the Commissioner of Community and Fire
Services for award of the consulting services contracts. The cost for
consulting services for design, contract management, project administration and
inspection for construction contract is about 12% of the construction cost.
Third Party Project Review and Assessment
To assure independent assessment
of the lining technologies, material strength and calculated capacity
improvement,
FINANCIAL CONSIDERATIONS AND TEMPLATE:
The funding formula
is based on a 1/3 shared basis with the
|
Project Acct# |
Project Name |
Budget |
Actual |
Budget Remaining |
|
53
6150 8334 005 |
Sewer
System Upgrade Program |
1,300,000 |
413,450 |
886,550 |
|
53
6150 9282 005 |
Sewer
System Upgrade/Rehabilitation Program - Annual |
1,300,000 |
- |
1,300,000 |
|
53
5350 10330 005 |
Sanitary
Sewer System Upgrade/Rehab Program - Annual |
1,328,000 |
- |
1,328,000 |
|
|
|
3,928,000 |
413,450 |
3,514,550 |
Under this new application to Building Canada Fund, works on storm sewers rehabilitation for West Thornhill are not included as all proposed measures such as downspout disconnection, flow balancing, sewer upgrades relates to each other and should be implemented together based on project phasing which cannot meet the funding completion deadline of March 31, 2011.
HUMAN RESOURCES CONSIDERATIONS
Not Applicable
ALIGNMENT WITH STRATEGIC PRIORITIES:
This project aligns with the strategic priorities of Environment and Municipal Services as it addresses flooding issues and concerns
BUSINESS UNITS CONSULTED AND AFFECTED:
Finance
RECOMMENDED
BY: ________________________ ________________________
Brenda Librecz Peter Loukes, P.Eng.
Commissioner, Community and Director, Operations
Fire Services
ATTACHMENTS:
Appendix ‘A’ – Proposed Thornhill Sewer Relining CBF Demonstration Project
Q:\Commission Share\Operations and