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.

Placeholder for RSS functionality.

Industry bulletins

Development approvals

Effective date	Bulletin name
March 2025	Residential Grade Slip Expiration Timeline
March 2024	Streamlined CD-MR process enhances user experience bulletin
March 2024	Established areas linear levy pilot
January 2024	Updates to the stormwater management and design manual
August 2023	Updates to the proposed water established area levy
March 2023	Construction drawing minor revision (CD-MR) policy update
July 2022	Sanitary servicing study submission process
August 2021	DSSP Small format revision update
April 2024	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 and design manual

Inspection services

Effective date	Bulletin name
March 2025	Flushing Permit Contact Update
January 1, 2025	Standard Specifications for Sewer and Waterworks Construction
June 2024	Implementation of Non-Joint Construction Completion Certificate (CCC) Process for Underground Utilities
May 2024	Flow metering for commissioning of new water mains
January 31, 2025	Full Implementation of AASHTO M306 for Municipal Castings
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 and drainage permits and 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

Operations

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.