Swimming pools

Swimming pools

Swimming pool and basin draining protocols

Anyone using a pump, or a siphon with an inside diameter greater than 1.5 inches, to drain a pool greater than 3000 Litres to the Wastewater System, must notify The City of Calgary by emailing the Industrial Monitoring Group at img@calgary.ca.  

  • If the discharge rate can be maintained under 150 L/min, we will process your request within five business days.  
  • If the proposed discharge rate exceeds 150 L/min, we require a minimum of ten business days, in order to assess the reported water quality and liaise with both the Development Planning Department, and the receiving Wastewater Treatment Plant.  
  • If sufficient notice is not provided, the proposed discharge may have to be delayed.  

Note: All discharges must comply with the Wastewater Bylaw.

What is required prior to dishcarging?

Prior to any discharge, the water quality must be assessed and brought into compliance with the Wastewater Bylaw limits. Of particular concern is the chlorine level. This is generally achieved by stopping chemical dosing, and letting the chlorine naturally dissipate in the days/weeks ahead of the discharge.

How to report

You need to submit the E2226 Pool Drain Request Form to img@calgary.ca.

In case of contamination

In the event of a contamination; follow Alberta Health Services protocols and email img@calgary.ca as soon as possible. Include the date and time, the volume released to the sanitary system, the chlorine concentration and attach a copy of the Alberta Health Services Water Contamination Response Log.

In case of emergencies

An emergency is considered any situation where there is imminent danger to life and/or the destruction of property. In the case of emergencies, you may discharge a basin without following the above procedure. Instead call 311 and report the release to the Industrial Monitoring Group as soon as is possible, and submit the E2226 Pool Drain Request Form once you have dealt with the emergency.

Contact 311

Resources

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City of Calgary Bylaws:

Permits

Forms

Fact Sheets

Alberta Environment & Protected Areas

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