| #Q001 | prohibition | unknown | mandatory | Ravine and Valley Discharge Prohibition | wastewater, recreational water | Pool water can never be discharged into or onto the ground near a ravine or valley; it will cause erosion to the land banks and serious damage to vegetation. | Discharging pool water | high |
| #Q002 | reporting | reporting | mandatory | Spill Reporting Obligations | wastewater, recreational water | You or your hired pool service provider are legally obligated to report a spill to provincial and municipal authorities if your pool water has been spilled into a stream, river, lake or the storm sewer system (without proper treatment). | If pool water has been spilled into a stream, river, lake or the storm sewer system without proper treatment | high |
| #Q003 | treatment | treatment | mandatory | Private Chlorine Pool Dechlorination | wastewater, recreational water | Water must be dechlorinated first. | When discharging water from private chlorine pools to the storm sewer system | high |
| #Q004 | operational | operational | recommended | Private Chlorine Pool Discharge Timing | wastewater, recreational water | Discharge should not be done on a rainy day as it will overwhelm the storm sewer system. | When discharging water from private chlorine pools to the storm sewer system | high |
| #Q005 | operational | operational | mandatory | Private Chlorine Pool Permeable Surface Discharge | wastewater, recreational water | Water must be fully absorbed into the ground on your property without flowing onto any neighbouring properties. | When discharging water from private chlorine pools onto a permeable surface on your property | high |
| #Q006 | prohibition | unknown | mandatory | Private Salt Water Pool Storm Sewer Prohibition | wastewater, recreational water | The water from salt water pools has such high levels of chlorides that it cannot be discharged to the storm sewer system. | When disposing of water from private salt water pools | high |
| #Q007 | operational | operational | guidance | Private Salt Water Pool Sanitary System Discharge | wastewater, recreational water | Alternatively, the water can be: 1. Carefully discharged to the sanitary system connection located on your own property. | As an alternative to storm sewer discharge for private salt water pools | high |
| #Q008 | operational | operational | mandatory | Private Salt Water Pool Permeable Surface Discharge | wastewater, recreational water | Water must be fully absorbed into the ground on your property without flowing onto any neighbouring properties. | When discharging water from private salt water pools onto a permeable surface on your property | high |
| #Q009 | operational | operational | guidance | Private Salt Water Pool Third-Party Hauler | wastewater, recreational water | Alternatively, the water can be: ... 3. Hauled by a Ministry of the Environment, Conservation and Parks approved hauler. | As an alternative disposal method for private salt water pools | high |
| #Q010 | operational | operational | mandatory | Pool Cover Water Debris Removal | wastewater, recreational water | Rainwater or melted snow collected on your pool cover can be discharged to the storm sewer system as long you remove leaves and other debris first. | When discharging rainwater or melted snow from a pool cover to the storm sewer system | high |
| #Q011 | treatment | treatment | mandatory | Filter Backwash Water Discharge | wastewater, recreational water | The backwash water from the filter must be filtered and dechlorinated if going to storm sewers, otherwise it must be discharged to the sanitary sewer or onto your surrounding property if it can be properly absorbed into the ground. | When discharging backwash water from a pool filter | high |
| #Q012 | treatment | treatment | mandatory | Muriatic Acid Cleaning Neutralization | wastewater, recreational water | Muriatic Acid cleaning must be neutralized to the City’s Storm Sewer pH limits before discharged to the storm system. | When discharging Muriatic Acid cleaning water to the storm system | high |
| #Q013 | operational | operational | mandatory | Commercial Pool Sanitary Connection Requirement | wastewater, recreational water | Under the Sewers By-law, commercial pools, hot tubs and spas must discharge into a sanitary connection on the same property that they are situated. | Discharging water from commercial pools, hot tubs, and spas | high |
| #Q014 | prohibition | operational | mandatory | Commercial Pool Cover Water Restriction | wastewater, recreational water | The only water from a commercial pool, hot tub or spa that can enter the storm sewer is rain or melted snow trapped, for example, on a pool cover, after the sediments and leaves are removed. | When discharging any water associated with a commercial pool, hot tub or spa to the storm sewer system | high |