August 20, 1998
Ms. Novina Wong
Clerk
City of Toronto
7th Floor, Metro Hall
55 John Street
Toronto, Ontario
M5V 3C6
Dear Ms. Wong:
At its meeting on Wednesday, August 19, 1998, the Commission considered the attached
report entitled, "Confirmation Of Additional Project Approval - Garage Subsurface
Investigation And Remediation Program."
The Commission approved the Recommendation contained in the above report, as listed
below:
"It is recommended that the Commission confirm the approval provided by the Chair,
Vice-Chair and Chief General Manager with regard to the following:
1.grant additional project approval in the amount of $493,000 for 6.1 Environmental -
Garage Subsurface Remediation Program for a revised total project cost to the end of 1998
of $11,610,000, noting that full project documentation will be provided in the 1999-2003
Capital Program submission;
2.forward this report to the City of Toronto Council requesting additional project approval
(City project no. 613) be granted in the amount of $493,000 gross ($123,250 net), for a total
City approval of $11,610,000 to cover cashflow requirements to the end of 1998;
3.authorize staff to proceed with project expenditures, due to the sensitive nature of this
request and hold in TTC accounts, pending City Council project approval; and
4.forward this report to the Ministry of Environment for information."
The foregoing is forwarded to City of Toronto Council for the necessary approval, as
detailed in the report.
Sincerely,
Vincent Rodo
General Secretary
1-64
Attachment
Copy:The Honourable N. Sterling, Minister of the Environment, Ontario Ministry of the
Environment
TORONTO TRANSIT COMMISSION
REPORT NO.
MEETING DATE:August 19, 1998
SUBJECT:CONFIRMATION OF
ADDITIONAL PROJECT APPROVAL -
GARAGE SUBSURFACE INVESTIGATION
AND REMEDIATION PROGRAM
RECOMMENDATIONS
It is recommended that the Commission confirm the approval provided by the Chair,
Vice-Chair and Chief General Manager with regard to the following:
1.grant additional project approval in the amount of $493,000 for 6.1 Environmental -
Garage Subsurface Remediation Program for a revised total project cost to the end of 1998
of $11,610,000, noting that full project documentation will be provided in the 1999-2003
Capital Program submission;
2.forward this report to the City of Toronto Council requesting additional project approval
(City project no. 613) be granted in the amount of $493,000 gross ($123,250 net), for a total
City approval of $11,610,000 to cover cashflow requirements to the end of 1998;
3.authorize staff to proceed with project expenditures, due to the sensitive nature of this
request and hold in TTC accounts, pending City Council project approval; and
4.forward this report to the Ministry of Environment for information.
FUNDING
Project funding for an estimated final cost of $11,117,000 was provided under the
1998-2002 Capital Program 6.1 Environmental - Garage Subsurface Remediation Program
as approved by the City of Toronto Council at its meeting of April 29, 1998. This request
exceeds that approval by $493,000 for this project, but sufficient underexpenditures are
available in 1998 under other projects in 6.1 Environmental Programs to accommodate these
overexpenditures.
BACKGROUND
At its meeting of July 15, 1998 the Commission agreed to cancel the next meeting
scheduled for August 5, 1998. In addition, the Commission approved delegating signing
authority for all procurement reports over $200,000 and contract amendments over $100,000
to the Chair, one other Commissioner and Chief General Manager between July 15, 1998
and the August 19, 1998 Commission meeting; and further that all matters approved in this
manner must be brought forward for confirmation at the August 19, 1998 meeting of the
Commission.
This project commenced in 1991 with the purpose of investigating and delineating
subsurface conditions in the area of fuelling islands at the Commission's various garages. As
a result of the investigations, a remedial program of clean-up activities was implemented to
address concerns about the environment, in accordance with regulations and guidelines
established by both the Ministry of Environment (MOE) and Fuels Safety Division of the
Technical Standards and Safety Authority (FSD/TSSA) (formerly the Ministry of Consumer
and Commercial Relations).
In the approved 1998-2002 Capital Program, this Capital project was indicated as ending in
1999, at which point, routine ongoing monitoring and reporting would become an operations
responsibility. While this still appears practical and achievable at five of the nine locations
involved, the remaining four sites which involve off-site contamination impacts will require
ongoing Capital investments for the foreseeable future and the 1999-2003 Capital Program
has been prepared to reflect this.
DISCUSSION
This project covers the ongoing investigation and remediation of petroleum hydrocarbon
contamination at the Commission's garage facilities. Subsurface investigations and remedial
work has commenced and is ongoing at all garages, namely: Arrow, Birchmount, Danforth,
Davenport, Eglinton, Lakeshore, Lansdowne, Queensway, and Wilson.
Subsurface investigations comprise the installation of boreholes and monitoring recovery
wells to the level of subsurface ground water, in order to delineate the extent and analyze the
level of soil and vapour contamination.
Remedial measures vary between the sites but typically they are comprised of the
following:
(i)Liquid petroleum extraction by screening and manual purging, or automatic
pumping/settling, of contaminated ground water from recovery wells.
(ii)Soil-vapour extraction by circulating vapour through carbon filters.
(iii)Trench recovery systems in order to "capture" petroleum hydrocarbons prior to
migrating off Commission's property.
During and following the implementation of remedial measures it is necessary to perform
regular monitoring to determine their effectiveness and the potential need for additional
measures.
Following a recent meeting with MOE & FSB/TSSA, the Commission was requested to
update its remedial action plans at all sites and take more aggressive immediate action at
three of the sites with off-site impacts in order to more accurately define the extent of the
contamination plume and prevent further off-site migration of petroleum hydrocarbon
products. Previous measures implemented at these locations, with MOE concurrence,
included installation of product recovery and monitoring wells, automatic pumping and
storage systems and a trench recovery system to control off-site migration of hydrocarbon
contaminates. While these measures helped to define and mitigate the problem for a time, it
is now apparent that enhanced pro-active measures are required to monitor and control the
off-site impacts of subsurface contamination to meet MOE requirements. The new work
includes reactivating an existing recovery trench along TTC's south property line and
constructing a new recovery trench along TTC's west property line at Lansdowne Garage to
mitigate off-site impacts; constructing a new recovery trench along our south property line
at Birchmount Garage to protect the adjacent AGF Glass property and drilling additional
wells at the Danforth site to further define the extent of the off-site plume.
This additional work, mandated by the province, was not anticipated at the time of
preparing the 1998-2002 Capital budget. In addition, the scope of work for monitoring and
reporting activities to meet MOE requirements, was greater than anticipated in 1997,
resulting in accelerated depletion of previously approved funds.
JUSTIFICATION
The present request for additional project approval is due to increased scope of work for
monitoring activities and new requirements in 1998 to further mitigate off-site impacts at
three Commission sites as noted above.
- - - - - - - - - - - -
July 28, 1998
85-133-15
188942
STAFF SUMMARY SHEET
ENGINEERING & CONSTRUCTION BRANCH |
PREPARED BY:D. TrudeauDEPARTMENT HEAD - T.G. Middlebrook
EXTENSION:3894GENERAL MANAGER - J.A. Sepulis
USER ID:DTRUDEAU |
COMMISSION REPORT:ADDITIONAL PROJECT APPROVAL
GARAGE SUBSURFACE INVESTIGATION
AND REMEDIATION PROGRAM
SCHEDULE IMPACT:Pre-approval by CGM/Chair/Vice-Chair is required in advance of the Commission's August 19, 1998 meeting inorder to commence work immediately.
The additional project approval is necessary to cover unanticipated increased scope of monitoring and remedial work at selected Commission facilities as described in the attached report to
satisfy recent MOE requirements for immediate enhanced action plans to further mitigate potential off-site impacts of petroleum hydrocarbon contamination. |
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ROUTING |
CONCUR |
NON-CONCUR |
DATE |
ATTACHMENT(S) |
2 |
GM - ENG & CONST |
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- Commission Report
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7 |
GM - EXECUTIVE |
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4 |
GM - OPERATIONS |
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DEPUTY GM - SUBWAY |
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3 |
DEPUTY GM - SURFACE |
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8 |
DEPUTY GM - CORPORATE |
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APPROVAL REQUIRED |
5 |
GENERAL COUNSEL |
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CHIEF GENERAL MANAGERDATE
___________________________________________
VICE-CHAIRDATE
___________________________________________
CHAIRDATE |
6 |
CHIEF FINANCIAL OFFICER |
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MGR - HUMAN RES |
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MGR - M&P |
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1 |
CHIEF ENGINEER |
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188275
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