Submission checklists › Toronto Water & ECS

Long Term Sewer Discharge Agreement (Long Term Private Water Discharge)

City of Toronto: Toronto Water (EM&P) · version October 26, 2021, Rev. 2 (Rev. 1 December 2, 2020)

Cover letter including

1Brief description of the project, including the owner and any legislation the project is delivered under
2Reason for discharge (track drainage, fire water, tunnel washing, etc.), including all sources of water
3Discharge start date, maximum number of hours of discharge (hrs/day)
4Maximum flow rate of peak discharge (L/min), maximum daily discharge rate (L/day), size of drainage outlet pipe
5Proposed discharge point: sanitary/combined or storm sewer (include size of sewer and general location)
6Confirm the location of the sample port has been provided as per the City standard, for quality control purposes
7Contingency plan for alternative method of disposal or storage: a written summary of the proposed alternative method of disposal or storage of private water (in the event the discharge approval or agreement expires, is suspended or terminated by the City, or the City otherwise can no longer accept the approved private water discharge under the agreement)
8Confirm that the flowmeter will be digital and non-resettable, will register between 98% and 102% of the water actually passing through the meter(s), keeps a cumulative record of readings in litres only, and displays the instantaneous flow rate in litres per minute only. The discharge hose/pipe must be a suitable diameter for the flow meter design specifications.
9Confirm that the design of the infrastructure complies with City of Toronto Municipal Code Sewers Chapter 681, the Design Criteria for Sewers and Watermains, the City of Toronto Wet Weather Flow Management Guidelines, and the Ministry of Environment, Conservation and Parks Guidelines
10Where long-term discharge is proposed to a sanitary or combined sewer, a written summary of the alternative options considered before proposing discharge to the sanitary or combined sewer, and why they have not been used. The summary must include a detailed explanation of why an underground watertight structure, an on-site water containment strategy or long-term discharge to the storm sewer is not possible or feasible.
11Confirm that the flowmeter will be installed as per the manufacturer's specifications and City requirements, and will be non-resettable

Application forms

12Private Water Discharge Approval Application (Form 1)
13Long Term Private Water Discharge Application (Form 3 – Long Term) completed in its entirety

Administrative documents

14Property ownership documentation (e.g. title or lands schedule excerpt) with a property drawing showing the owner's lands/parcel
15Property Owner's Consent Letter: consenting to the proposed private water discharge from the premises and identifying the authority and extent of such authority granted to the applicant as Technical Advisor.
16Business Name Registration/Business Licence or Letters of Incorporation/Letters Patent/Charter (Initial Notice/Notice of Change) or Partnership Registration (i.e. Partnership Declaration Form 3) and any amendments or changes. Include results of a corporate registry search conducted within 30 days of the application submission date and proof of signing authority.
17Letter confirming signing authority of applicant.
18Property Owner's copy of government-issued identification for the Property Owner.
19Completed City of Toronto Long Term Sewer Discharge Agreement Application Checklist

Technical documentation

20System-Wide Drainage & Water Report
21Site Servicing Report including Design Calculations and System Capacity Analysis
22Geotechnical Report
23Hydrogeology Report

Engineering drawings: mechanical, grading, site servicing (P.Eng. stamped, qualified & licensed to practise in Ontario)

24Sub-slab and foundation drainage plan showing the location and volume (m³) of all groundwater collection pits on site, the plumbing from the weepers, sub-slab drainage, foundation drains, etc. to the collection pits, and the plumbing from the collection pits to the final discharge point. Ensure all collection systems are included (sanitary, storm, etc.)
25Title/label the related discharge and collection lines as groundwater, storm water, sanitary, etc. and include diameter information.
26Location(s) and volume(s) of all collection sump(s)
27Drawing(s) of each sub-grade level of the proposed building(s) showing the plumbing to the final discharge point into the City sewage works
28Drawings with a detailed section of the flow meter installation and showing the installation location of the long-term flow meter; the section shall include:
  • The make/model of the flow meter(s)
  • Details showing that the flow meter(s) shall be installed horizontally
  • The length and diameter of straight pipe upstream and downstream of the flow meter(s)
  • The height of the flow meter(s): the drawing(s) must include a note that the flowmeter(s) will be installed as per the manufacturer's specifications in an accessible location at grade, or on the sub-grade level immediately below grade, at a height between 60 cm and 120 cm above the finished floor
  • The installation location and height of the remote readout, if applicable
29Site Grading Drawings
30Site Servicing Drawings (Sections)
31Drawing showing the location of the pre-treatment system, the source of intake, discharge line, location of the treated water outlet, and discharge of any backwash (if applicable)

Supporting information

32Groundwater pump(s) capacity and groundwater pump schedule in litres per minute
33Contact Toronto Building to obtain information on any other requirements for backflow devices
34Manufacturer's specifications for the proposed flow meter(s)
35Flow meter signed calibration certificate (within 12 months) OR purchase receipt(s), if newly purchased and unused within the last 30 days:
  • Calibration certificate: clearly indicates flow meter make, model, unit of measure, serial number(s), ±2% accuracy, pipe size diameter(s) and, if applicable, register (e.g. digital display) make, model and serial number(s)
  • OR purchase receipt(s): clearly indicates flow meter make, model, unit of measure, serial number(s) and, if applicable, register make, model and serial number
36Signed and stamped pump schedule, indicating the capacity of the selected pump, make, model and head pressure capacity of the sump pump

Pre-treatment of private water (if required) prior to discharge: operation and maintenance details

37Detailed description of the pre-treatment system and associated processes, design capacities, contaminants to be removed, estimated removal efficiency, performance objectives, collection and disposal of any treatment by-products, and operation and maintenance manuals
38Drawing/schematic indicating the installation location of the pre-treatment system as per the manufacturer's specifications
39Mechanical drawing showing the source of the system's intake water and, if applicable, the backwash water discharge location, traced from the system to the final discharge location
40Cross section showing piping/plumbing of the system(s)
41Process flow chart of the proposed pre-treatment system
42Pre- and post-treated water quality analysis reports
43If soil or groundwater contamination is known or suspected at the site, additional information must be submitted.
44Describe the PWDS pre-treatment systems and associated processes.
45Provide the performance objectives of the PWDS pre-treatment system(s) and associated processes
46Operation and maintenance manuals of the PWDS pre-treatment system(s), with information such as:
  • A detailed process flow chart of the whole pre-treatment system
  • System capacity in litres per minute
  • Media replacement and maintenance frequency
  • Canadian MSDS for all materials, media and chemicals used on site for the pre-treatment system
  • Safe handling precautions and procedures for the chemicals
  • Procedures for preparing chemical solutions
  • Backwash procedures, frequency and discharge locations (if applicable)
  • Maintenance procedures for pipe filter media cleaning and/or replacement
  • Procedures for handling solids and solid wastes
  • Routine operation procedures for pre-treatment system operators
  • Inspection procedures by employees/operators, and system troubleshooting procedures including wells, pumps, valves, control panels and flow meters
47Mechanical drawing(s), P.Eng. stamped, showing the installation location of the proposed pre-treatment system, clearly showing the source of the system's intake (inlet), discharge line, location of the treated water (outlet) and the discharge location for any backwash water
48Contact information for:
  • The pre-treatment system supplier
  • Suppliers for all materials, media and chemicals used on site
  • Technical (electrical, mechanical and chemical) consultants for the pre-treatment system
  • The environmental consultant for the pre-treatment system who has knowledge of the discharge application at the premises
49Spill Response Plan with details:
  • MECP-licensed wastewater hauling contractor (in case of spills and any other emergency related to private water discharge)
  • Emergency, spill containment and cleaning procedures
  • Spill report and inspection (daily/weekly/monthly) forms and spill reporting procedures
50An Environmental Compliance Approval (ECA) from MECP for the pre-treatment system(s), if required; provide a copy with this application, if applicable

This checklist identifies the scope of information typically required to support processing of an application. It is the responsibility of the applicant to consult with the approval authority prior to application submission to confirm the submission requirements for more complex or atypical applications.

Permits this checklist is for

Official pages

Track this submission free.
Deadlines in business days, email alerts before decisions are due, and your whole team in one place.
Track this permit free