Sanitary Discharge Agreement
The Works and Utilities Committee recommends the adoption of the report dated March 10, 1998, from the Interim
Functional Lead for Water and Wastewater.
The Works and Utilities Committee reports, for the information of Council, having requested the Commissioner of Works
and Emergency Services, after three months of testing, to submit a report on the test results to the Committee for
information.
The Works and Utilities Committee submits the following report (March 10, 1998) from the Interim Functional
Lead for Water and Wastewater:
Purpose:
To allow The Glidden Company Limited to enter into a Sanitary Discharge Agreement with the City of Toronto permitting
it to discharge from its private water system into the sanitary sewer system and pay a surcharge fee.
Funding Sources, Financial Implications and Impact Statement:
This Department maintains approximately 30 Sanitary Discharge Agreements, which allow for the recovery of
approximately $700,000.00 per year in treatment costs. These charges reflect a user pay philosophy and directly recover the
cost of operation of our treatment plants.
Recommendation:
It is recommended that we be authorized to enter into a Sanitary Discharge Agreement with The Glidden Company
Limited, for the discharge of treated groundwater from its private water system at 370 Wallace Avenue, Toronto, to the
sanitary sewer system, under terms and conditions satisfactory to the City Solicitor and the Commissioner of Works and
Emergency Services.
Council Reference/Background/History:
On June 24, 1980, Metropolitan Council adopted Clause No. 1 of Report No. 10 of The Works Committee, approving
By-law No. 96-80, authorizing execution of agreements with industries permitting them to discharge effluent from a private
water system into the Metropolitan Toronto sanitary sewer system, or any sewer system draining into the Metropolitan
Toronto sanitary sewer system, under conditions of payment for treatment. Otherwise, Toronto would not receive payment
for water pollution control treatment activities that are normally obtained from a surcharge on the water supplied by the
public municipal system.
Comments and/or Discussion and/or Justification:
Golder Associates Ltd. is assisting The Glidden Company in the remediation of subsurface hydrocarbon and oil
contamination at the Glidden site located at 370 Wallace Avenue.
Groundwater will be collected using vacuum enhanced recovery technology whereby a vacuum is applied to an extraction
well network consisting of 36 extraction points. The collected groundwater will be transferred to an oil/water separator.
The oil phase will be collected and disposed of off-site. The water phase will be treated on-site using primary and
secondary granular activated carbon filters before discharging to the sanitary sewer on Wallace Avenue.
The remediation program is expected to last for a minimum of five years, and the anticipated maximum discharge into the
sanitary sewer will be 23 litres per minute. Water quality monitoring will be conducted on a regular basis during the
pumping operation to ensure compliance with the Metropolitan Toronto Sewer Use By-law No. 153-89.
Conclusions:
In accordance with our policy with regard to By-law No. 96-80, The Glidden Company Limited has been notified of the
surcharge rate of 38.59 cents per cubic metre to be levied in 1998, and has signified agreement to the surcharge.
Contact Name:
Vic Lim, Chief Engineer
Environmental Services - Water Pollution Control
Phone: (416) 392-2966; Fax: (416) 397-0908
E-mail: victor_lim@metrodesk.metrotor.on.ca
