Water development approvals - updates and bulletins

Find the latest updates and bulletins related to processes, guidelines and available services for Water Development Approvals.

You can also visit our Water Development Resources Home to access water development approval submission information, including tools, guides, checklists and templates for each step in the development process:

To view the most recent versions of technical guidelines and specifications, for use by the development industry, visit Water Guidelines and Construction Specifications.

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Industry bulletins

Development approvals

Effective date Bulletin name
March 2023

Construction Drawing Minor Revision (CD-MR) Policy Update

July 2022

Sanitary Servicing Study Submission Process

August 2021

DSSP Small Format Revision Update

August 2021 Flow Metering for Commissioning of New Watermains Bulletin
February 2021 Dead End Watermains in New Subdivisions Bulletin
​January 2021 Valve Numbering Bulletin
​November 2020 Manhole Cover Bulletin
​October 2020 Update to the January 2018 Sewer Bypass Guideline
​September 2020 2020 Specification Bulletin​
​May 2020 Water Utility-Focused Pre-Application Process ​
​May 2020 Sewer As-Built Submissions​
​​July 2019 Interim CCC/FAC Requirements for Stormwater Reuse Irrigation Systems
July 15, 2019 Environmental Regulatory Requirements for Unplanned Releases of Potable Water to the Storm System
June 1, 2019 Test Manhole and DSSP Submission Process Update
April 18, 2019 Interim Runoff Volume Control
November 21, 2018 Increase of CD-MRI Submissions for the Construction Drawing - Minor Revision Process
November 5, 2018 Searching for Subdivision and Private Site Stormwater Management Reports
October 10, 2018 Master Development Agreements and Interim Development
October 5, 2018 Interim Imperviousness Ratios
July 1, 2018 ESC Guidelines Implementation​
July 1, 2018 ESC Construction Drawing De-coupling
July 1, 2018 Service Valves Greater Than 50MM
May 1, 2018 Water ePay Drinking Water Distribution Disconnection Process Change
January 1, 2018 Unit Area Release Rate Requirements for Development
January 1, 2018 Stormwater Volume Control Targets For 2018
November 1, 2017 WRWS Services Shutdown Requests for Water Mains 400mm
September 1, 2017 ESC Drop Off Location
July 1, 2016 Water Quality Services Sediment Containment Systems P-value Updates
October, 2015 Stormwater Volume Control Targets Update
March 2014 Water Resources/Water Services Interim Stormwater Targets
December 2013 2011 Amendments to the Stormwater Management & Design Manual

Inspection services

Effective date Bulletin name
January 1, 2023

Standard Specifications for Waterworks and Sewer Construction

December 2022

Portland Limestone Cement

July 2022

​Irrigation Pipe Supply Industry Bulletin

September 2021 Revisons to Asbuilt Submission Content Requirements
September 2021 Storm Service (75mm) Pipe Shortage - Modified Installation Standard
March 2021 14 Day Main Control Changes
March 2021 Obtaining Dewatering & Drainage Permits & Notifications
​February 2021 Declaration Letter for CCTV Video and Inspection Report
​May 2020 PPE for Accessing Customer Homes/ Businesses
July 15, 2019​ Indemnified Addendum Applications and Inspection Requests
November 1, 2018 Cathodic Protection
September 9, 2018 Indemnification Process Change
July 5, 2018 Standard Specifications 2018
April 11, 2016

Subdivision Interim De-Chlorination Guideline

June 1, 2018 Storm Outfall Grating Standard Specifications


Effective date Bulletin name
July 1, 2018 Operation Of the Water Distribution System in New Subdivisions and Tie-ins
July 24, 2017 Price Increase for Fire Flow Tests

This information has no legal status and cannot be used as an official interpretation of the various bylaws, codes and regulations currently in effect. The City of Calgary accepts no responsibility to persons relying solely on this information. Web pages are updated periodically. ​