HomeMy WebLinkAboutDTS-06-048 - Environmental Remediation - 295 Joseph St, Bramm St Operations Centre & 72 Victoria St S Parking Lot1
Kd LR
Development&
Technical Services
6 REPORT
Report To: Development & Technical Services Committee
Date of Meeting: March 27th, 2006
Submitted By: James Witmer, Director of Building and Environmental
Remediation
Prepared By: James Witmer, Director of Building and Environmental
Remediation
Ward(s) Involved: Ward #6
Date of Report: March 17, 2006
Report No.: DTS — 06 -048
Subject: ENVIRONMENTAL REMEDIATION 295 JOSEPH STREET,
BRAMM STREET OPERATIONS CENTRE AND 72
VICTORIA STREET SOUTH PARKING LOT
RECOMMENDATION:
"That Council approve the Remedial Action Plan (Option 2) of $300,000 as the upset limit for the
environmental remediation of gasoline related contamination in the soil and groundwater at the
Bramm Street Operations Centre and parking lot at 72 Victoria Street South on a without
prejudice basis, and
that Council authorize the Mayor and Clerk to sign an Access and Indemnity Agreement with the
registered owner of 72 Victoria Street South, satisfactory to the City Solicitor, for the purpose of
conducting bio- remediation work thereon to complete the Workplan, and further
that Frontline Environmental Management Inc. be retained to manage the environmental
remediation for this project, notwithstanding Purchasing - Chapter 170, of the City of Kitchener
Municipal Code."
BACKGROUND:
A Phase II ESA had been carried out for the adjoining property located at 72 Victoria Street
South that revealed an environmental issue which was suspected to have originated on the
Bramm Street Operations Centre Property. Frontline Environmental was retained by the City to
conduct a Supplemental Phase II ESA at the Bramm Street Operations Centre to delineate the
extent of petroleum hydrocarbon impacts in soil and groundwater extending from the Bramm
Street property to the 72 Victoria Street South property and to develop remediation options.
REPORT:
The results of this investigation have determined that the cause of the contamination is not
known. Based on chemical analysis, monitoring well (MW9) appears to be located within the
source area on the Bramm Street Operations Centre, since the hydrocarbons were detected
near ground surface and the highest concentrations measured at that location. It is likely that
this is historical contamination associated with past land use of the property. Based on the
laboratory testing data from the soil and groundwater in this area of concern, the hydrocarbon
impacts are consistent with impacts from gasoline as the soil in this area was found to be grey
stained and revealed a strong gasoline like odour.
Two options were developed in conjunction with the adjacent property owner, as part of the
Remedial Action Planning for the project.
Option 1 — Excavation of Impacted Soil, Groundwater Pump & Treat, Treated Water Re-
injection in a 2 -Year Period: $390,000
This option consists of the excavation of the impacted soils from the Bramm Street property and
the parking area on 72 Victoria Street South to remove the contaminated material. This would
involve the stripping of asphalt; removal of retaining walls, fencing; concrete demolition and soil
excavation and backfill. It also requires the retention of a qualified environmental contractor to
bioremediate the soil and treat groundwater.
Option 2 — Excavation of Impacted Soil at Bramm Street Operations Centre, Backfill with
Selected Material and In -Situ Groundwater Remediation in a 3 -4 Year Period: $300,000
This option includes the source removal of the contaminated soil in the area of MW9 on the
Bramm Street property utilizing excavation, backfill with selected material and surface
restoration, this work will be partially completed utilizing Operation staff (keeping the work in-
house). Remediation of the impacted groundwater plume and the remaining residual soil
impacts at the 72 Victoria Street South property can be completed utilizing the sump and in -situ
bioremediation through a subsurface injection system network, which also requires the retention
of a qualified bio- remediation contractor experienced in the bio - remedial treatment of soil and in-
situ treatment of groundwater.
FINANCIAL IMPLICATIONS:
This project will be funded from the Brownfield Remediation capital account, which has an
unexpended and unencumbered balance of $1,281,445 as of this date.
Respectfully submitted,
James A. Witmer,
Director of Building and Environmental Remediation
List of Attachments
Figure 7, Proposed Remedial (Option 1)
Figure 8, In -situ Bio- remediation Injection Wells (Option 2)
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