March 10, 1998
To: Works and Utilities Committee
From: M.G. Thorne
Interim Functional Lead - Water & Wastewater
Subject: Sanitary Discharge Agreement
The Glidden Company, Limited
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.
Recommendations
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 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 address: victor_lim@metrodesk.metrotor.on.ca.
M. G. Thorne, P. Eng.
Interim Functional Lead
Water & Wastewater
Barry H. Gutteridge
Commissioner
Works and Emergency Services
