| #Q001 | treatment | treatment | mandatory | Bypass Disinfection Requirement | wastewater | Toronto’s wastewater treatment plants operate according to strict provincial and federal regulatory requirements and all wastewater is disinfected even during a bypass. | even during a bypass | high |
| #Q002 | treatment | treatment | mandatory | Bypassed Wastewater Treatment Processes | wastewater | The bypassed wastewater still goes through screening, grit removal, primary treatment, phosphorous removal and full disinfection to ensure the treated water always meets strict federal and provincial regulations. | during a bypass | high |
| #Q003 | reporting | reporting | mandatory | Bypass Initial Notification | wastewater | The City notifies the MECP’s Spills Action Centre when a bypass starts and ends using the MECP’s Bypass & Overflow Reporting portal or by telephone. | when a bypass starts and ends | high |
| #Q004 | reporting | reporting | mandatory | Detailed Bypass Information Reporting | wastewater | Within 10 business days, the City adds more detailed information to the portal such as duration and volume. | Within 10 business days | high |
| #Q005 | reporting | reporting | mandatory | Periodic Bypass Summary Reporting | wastewater | The City also submits a monthly (Humber) or quarterly (Ashbridges Bay) summary of bypass events to the MECP, and posts these bypass events monthly on the City’s website. | | high |
| #Q006 | reporting | reporting | mandatory | Annual Bypass Reporting | wastewater | Bypass information is included in the plant’s annual report, submitted to the MECP and posted online by March 31 of the following year. | by March 31 of the following year | high |
| #Q007 | prohibition | health | guidance | Swimming After Rainfall Advisory | recreational water | The City of Toronto advises people to stay out of the water during and for 48 hours after rainfall. | during and for 48 hours after rainfall | high |
| #Q008 | prohibition | operational | recommended | Catch Basin Discharge Prohibition | wastewater | Construction wastewater and debris should never enter catch basins (square grates on the road), as catch basins are connected to storm sewers, which drain directly into rivers, streams and the Lake. | | high |
| #Q009 | prohibition | operational | recommended | Prohibited Materials for Storm Sewers | wastewater | Material that Should Never Enter Catch Basins: mud or sand; concrete or cement powder; truck/vehicle wash water; paint; oil or petroleum products; soap; chemicals; any construction material, debris or dust; construction wastewater. | | high |
| #Q010 | administrative | reporting | mandatory | Construction Wastewater Discharge Permit | wastewater | Disposing of construction wastewater requires a Discharge Permit or Agreement. | when disposing of private water/non-purchased city water | high |
| #Q011 | operational | operational | mandatory | Erosion & Sediment Control Plan Requirement | other | Ensure your company has an Erosion & Sediment Control Plan and follow it. | | high |
| #Q012 | prohibition | operational | mandatory | Cement Truck Washdown Prohibition | wastewater | Ensure cement/ready-mix trucks do not hose down onto the roadways or into catch basins. | | high |
| #Q013 | operational | operational | mandatory | Dry Method Street Sweeping | other | Regularly sweep streets, sidewalks and driveways using dry method/vacuum sweepers and dispose of waste properly. | | high |
| #Q014 | prohibition | operational | mandatory | Power Washing Restriction | wastewater | Do not power wash construction dirt and waste onto the roadways or into catch basins. | | high |
| #Q015 | operational | operational | mandatory | Off-site Maintenance Requirement | other | Change vehicle oil and antifreeze off-site at designated facilities. | | high |
| #Q016 | design | operational | mandatory | Catch Basin Protection During Land Clearing | other | Where land is being cleared, protect catch basins by covering the inlet with filter fabric or follow another approved method which will not allow sediment to enter the catch basin. | Where land is being cleared | high |
| #Q017 | operational | operational | mandatory | Preventative Method Maintenance | other | Maintain the preventative method regularly. | | high |
| #Q018 | operational | operational | mandatory | Vehicle Wash Location Requirement | wastewater, other | Wash vehicles off-site at a car/truck wash or establish a designated wash area on-site. | | high |
| #Q019 | design | operational | mandatory | Construction Exit Design Requirement | other | Design an effective construction exit to prevent dirt and waste from leaving the site – this may include gravel, paving, rumble strips and wheel washing. | | high |
| #Q020 | prohibition | operational | mandatory | Dirt Dragging Prevention | other | Do not allow any dirt from the site to be dragged out to City roads. | | high |
| #Q021 | prohibition | operational | mandatory | Wash Water Runoff Prevention | wastewater | Do not allow any wash water from the site to runoff into catch basins. | | high |
| #Q022 | operational | treatment | mandatory | Sediment Control Implementation | wastewater, other | Implement measures to keep sediment in place where soil is being disturbed by the construction processes, such as the use of sediment traps, storm inlet protections, fibre rolls, silt fences, etc. | where soil is being disturbed by the construction processes | high |
| #Q023 | operational | operational | mandatory | Construction Debris Housekeeping | other | Maintain good housekeeping by properly disposing of all construction debris. | | high |