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Water approval submission information

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Below you will find water development approval submission information, including resources, guides and templates on the following development categories:

Water Resources, Infrastructure Planning Industry Contacts

IP plays a key role with the development approvals process within Water, as the Sections of Development Approvals, Development Engineering, Development Planning and the Water Industry Liaison all reside within the Division.

Infrastructure planning industry contacts


July 3, 2017 - POSEIDONOnline Release 2.5 is NOW LIVE with the Construction Drawing – Minor Revision and View Submissions (Water only), available.

There are two new features that have been aded to POSEIDONOnline Release 2.5: the CD-MR process and View Submission page. To learn more, view the Release 2.5 Bulletin.

POSEIDONOnline is the submission site for electronic submissions directly to Water Resources by development industry applicants. POSEIDONOnline offers the ability for applicants to submit:

  • Construction Drawing Checklists,
  • Construction Drawing Checklists for Ponds
  • Subdivision Stormwater Management Reports (E-SWMR)
    • New
    • Iteration
    • Final
    • Revised Final
  • DP/DSSP (Private Site) Stormwater Management Reports (E-DPDSSP).
    • New
    • Iteration
    • Final
    • Revised Final
  • Construction Drawing - Minor Revision (CD-MR)
    • Industry Initiated
    • Field Order Initiated
  • Construction Drawing - Minor Revision Pond (CD-MR Pond)
    • Industry Initiated (CD-MRI Pond)
    • Field Order Initiated (CD-MRF Pond)
  • Increase of CSMRI Submissions - November 21, 2018
  • View Submissions Dashboard


POSEIDONOnline is accessed through The City's VISTA website, by selecting the 'Submit to Water' link located on the left hand side of the VISTA main page.

In order for applicants to use this service, applicants require a Registered Submission VISTA Log-In and be a Registered Consultant. POSEIDONOnline uses the same Log-Ins as VISTA. If an applicant does not currently have a Registered Consultant VISTA Log-In, one can be created from the VISTA site.

Please see thisPOSEIDONOnline document for more information or refer to our frequently asked questions document.

View Submissions

The POSEIDONOnline View Submissions page has been developed to provide applicants with up-to-date information on the status of Water only approvals submissions.

To view submissions, please follow the steps outlined in the following guide:

Guide to POSEIDONOnline View Submissions

Submission Requirements

POSEIDONOnline electronic submissions must contain all required information and attachments for a review. If any information or required attachements are missing the submission will be rejected. No partial applications will be accepted.

Construction Drawing (CD) Checklists - CD Checklists are required by Water Resources in order to commence the application review process.

  • The E-CD must be submitted first, before a CD Checklist can be submitted.
  • A CD identification number (CDID) is assigned when an E-CD is submitted via VISTA.
  • The CDID is required to submit the CD Checklist via POSEIDONOnline. Once the CDID has been received by the applicant, proceed with the submission of the CD Checklists.

Stormwater Management Reports (E-Stormwater) – All E-Stormwater submissions must contain the full report with all required checklists, information, and stamps.

  • E-Stormwater reports are submitted directly via POSEIDONOnline.
  • If an applicant is submitting both the E-CD and E-SWMR concurrently, the E-CD must be submitted first.
  • If the E-CD is in circulation and the E-SWMR is being submitted at a later date, there is the ability to synchronize the E-CD to E- SWMR submission. The same applies if the Subdivision Stormwater Management Report is already in circulation and an E-CD is being submitted at a later date.

Amendments to Subdivision Stormwater Management Reports and Private Site Stormwater Management Reports.

  • Amendments to Subdivision and Private Site Stormwater Management Reports can be submitted to Water Resources via POSEIDONOnline using the Revised Final E-Stormwater Report process.
  • If a report number does not appear, in particular for Private Sites, Applicants are to contact

Electronic Submission of Geotechnical Reports (E-GEOTECH)

Water Resources, Infrastructure Planning, will be moving to electronic submission of geotechnical reports via POSEIDONOnline in mid-November 2018. E-GEOTECH submissions will include the following with this initial roll-out:

  • Geotechnical Evaluation (GEOEVAL)
  • Deep Fills Report (GEODEEP)
  • Slope Stability Report (GEOSLOPE)
  • Hydrogeological Report (GEOHYDRO)
  • Geotechnical Letter (GEOLET)
  • Peer Review (GEOPEER)

For more details, please see Electronic Submission of Geotechnical Reports.

Development Site Servicing Plans (DSSP) Processes - Approvals and Inspections

Effective May 1, 2018: Water Resources will be responsible for the file management and detailed review of DSSPs, and all inspections for DSSPs.

Water Resources will also be assuming responsibilities for grades slips and site servicing inspections related to residential developments (infills). The intake and pick up location for DSSPs will remain at the permit pick up/drop off counter at the Municipal Building (3rd floor).

For more details and processes, please see:

Development Site Servicing Plans (DSSP) homepage

Information pertaining to the Water Resources/Water Services epay options and guidance can be found by accessing the Water ePay for payment page. To access ePay, go to Water ePay for payment.

Please see theDSSP Improvement Project presentation for additional information.

Water Resources Redevelopment Strategy

This redevelopment strategy set out the specific objectives and actions Water Resources will use to improve accommodation and support of redevelopment in established areas in the city. For more information about the strategy please see this Bulletin.

Neighborhood-Specific Infrastructure Reports

As part of our redevelopment work, Water Resources is preparing a series of Neighborhood-Specific Infrastructure reports, to be made publicly available online. Information contained in the reports is intended to assist in preliminary infrastructure due diligence investigations related to potable water, sanitary, and storm servicing prior to redevelopment of a site by land owners, developers, and/or their consultants.

This information may be useful at various stages in the development process to help better understand broad, community-scale infrastructure context, from land acquisition through to conceptual design work or prior to a formal application for land use re-designation or development permit. As a starting point, the grain of detail contained in this report can help provide a basic understanding of key infrastructure features in the community that may be important considerations for those seeking to develop or redevelop a site.

Low Impact Development (LID)

The main components of the Technical Guidelines are the required design, construction, inspection, and operation and maintenance elements for the Source Control Practices currently accepted by The City of Calgary:

  • Bioretention
  • Bioswale
  • Absorbent landscape
  • Green roof
  • Stormwater capture and reuse
  • Rainwater harvesting
  • Permeable pavements

These practices, in combination with the geotechnical and hydro-geological aspects that are essential in the analytics and design of infiltration-type practices are grouped into six different modules.

These modules are intended to be combined into a comprehensive LID Manual. This manual will become a part of The City of Calgary Stormwater Management & Design Manual.

While the modules were prepared using the best literature, resources and research reports available to date, the field of Low Impact Development is still evolving. As such, there may be applications that are not yet covered by the guidelines, and therefore, will require assessment on a case-by-case basis.

In addition, given the evolutionary nature of LID, Water Resources recognizes that there will be a transitional period and therefore will be flexible where possible in the implementation of LID modules, and is open to constructive alternatives provided that the intent of the modules is met to Water Resources' satisfaction.

Irrigation Demand Estimation (IDE) Tool

The IDE tool is a hydrologic planning tool developed to estimate irrigation demand for the purposes of stormwater reuse applications withdrawing water from a single source. The tool is intended to estimate irrigation volumes for modelling assumptions in support of staged master drainage plans, pond reports and storm water management reports. Results from the IDE tool can be integrated with other modelling platforms, and summary results can be input into the City of Calgary water balance spreadsheet. The IDE tool is to be used as a planning tool by the consulting industry in preparation of stormwater reuse calculations to provide consistency in applications and streamline the submission process.

For more information please see the user manual for the IDE tool. See this bulletin for more information on the tool and the upcoming industry workshop.

Industry Bulletins:

Construction Drawings Submissions

Construction Drawing - Minor Revision (CD-MR) POSEIDONOnline Submission Clarifications

Please see ourNovember industry bulletin for clarifications regarding Construction Drawing Minor Revision (In Field) Submissions processes via POSEIDONOnline.

Construction Drawing - Minor Revision (CD-MR and CD-MR Pond) In Field

Construction Drawings – Minor Revisions (CD-MR) is a new, Water Resources-only process, developed to:

  • Create more efficiency by formalizing and structuring the current “ad hoc” process.
  • Provide better customer service to Applicants.
  • Coordinate efforts within internal approving Business Units.
  • Structures information pertaining to minor revisions which can be used for both CCC and FAC processes.

The Minor Revision (In Field) process does not constitute fulfillment of the formal CCC requirement, whereby a full set of drawings set is required. Rather, it is to ensure all information required for fulfillment is captured. For an application to be considered minor:

  • It must only affect Water Resources, i.e., one Business Unit.
  • If the change requires a revision to the Subdivision Stormwater Management Report, it will not be considered minor.
  • Design changes to construction cannot be outside the construction boundary.
  • To be considered minor, all changes must be within the established construction boundary.
  • Line Assignment change(s) are not a minor revision.
  • Minor changes should not contravene any design guidelines or specifications.

Please see the Guide to Construction Drawings – Minor Revisions or the most recent bulletin for more information.

As part of The City's construction drawings review process, Water Services reviews construction designs to ensure they meet regulatory requirements and will ultimately provide an acceptable level of service to the citizens of Calgary.

Construction Drawings Checklists were developed to assist Engineering Consultants in ensuring they have complied and completed all the necessary requirements before submission to Water Services. These checklists will improve review times, clarify submission requirements and decrease the number of re-submissions for consultants.

These checklists must be completed as part of the construction drawing submission requirement effective July 1, 2010:

ESC Plans will no longer be included within the digital CD submission package and will instead circulate as a separate paper submission directly to SPP. To submit a de-coupled ESC Plan, first obtain your CD number; this unique identifier will ensure that any ESC Approval is easily linked back to your CD file. Next, follow the application process as outlined on the ESC Webpage by clicking the Approvals link. Ensure you have included your CD number, email contact information and two complete copies of your ESC Plan. Read more in the Bulletin - De-coupling of Erosion and Sediment Control Plans from the VISTA Construction Drawing Package.

Construction Drawings Guidebook

The following guidebook was created to help Engineering Consultants when working through the Construction Drawing Checklists, a requirement effective July 1, 2010. This guide provides further information including:

Stormwater Management Reports

Final and Revised Final Stormwater Management Report Submission Requirements

To ensure the Stormwater Management Reports available online are the most recent, approved version and to make the reports more user friendly, Water Resources requires a clean copy of final and revised final SWMRs be provided after the no objections letter has been received.

The clean copy of the final or revised final SWMR should include the following:

  • Report cover date should match the date the clean copy is being submitted.
  • Appropriate Stormwater Management Report checklist with certification from a Professional Engineer.
  • A copy of the no objections letter is required as the first page.
  • All previous comments and requirements should be addressed and incorporated into the report, with no mark-ups. All updated drawings, models, etc should be incorporated.
  • For Revised Finals, the previous, most recent approved version of the report, prior to the changes should be included as an Appendix.
  • Any previous correspondence that is relevant should be included as an Appendix.

The Final and Revised Final Stormwater Management Reports should be submitted electronically directly via POSEIDONOnline.

Please see the Bulletin for more information​.

Clean copies of the Final and Revised Final Stormwater Management Reports are required to be provided with 15 business days of issuance of the No Objections letter from Water Resources.

Availability of Stormwater Management Reports (SWMRs) and Staged Master Drainage Plans (SDMP) and Master Drainage Plan Reports

As of June 16, 2014, Infrastructure Planning is please to make SWMRs and SMDPs available through CITYonline. In addition, Infrastructure Planning is now requesting both an electronic and paper copy of final submissions for both SMDPs and Master Drainage Plans (MDPs). For more information visit Urban Development.

To assist our Applicants in searching for information on CITYOnline, Infrastructure Planning has made available two reference lists for Stormwater Management Reports – one for Subdivision and one for Private Sites.

For more information pertaining to the Stormwater Management Reports please contact Infrastructure Planning Information Management at a

Stormwater Report Templates

Stormwater Management Report (SWMR) Templates were created to help Engineering Consultants work through the development of their SWMRs. The templates provide further information including:

Please note: The "Comprehensive Guide for Rainwater Harvesting as a Stormwater Best Management Practice", referenced in the Rainwater Harvesting Guidelines published by Development and Building Approvals (DBA) is currently under development. Should more information pertaining to the Guide be required, inquiries can be sent to Bert van Duin at Once the Guide is completed, an Industry Bulletin will be released.

Interim Approach for Imperviousness Ratios

The typical imperviousness of urban catchments shown in Table 3‐14, Section from the Stormwater Management & Design Manual is no longer reflective of the new subdivision designs. Using the outdated reference from Table 3‐14 may result in the following:

  • An under estimation of the magnitude of overland peak flows and velocities
  • Inadequate storage volume (traplows and ponds)
  • An under estimation of the overall runoff volume from subdivisions to creeks and rivers
  • An under estimation of the extent of inundation on roadways
  • Underestimated minimum building opening elevations and restrictive covenants (RMGs)

See Bulletin entitled: Bulletin - Interim Approach for Imperviousness Ratios

Stormwater Volume Control Targets

In October 2015, Water Resources issued an industry bulletin identifying that runoff volume control targets had become voluntary in most of Calgary. However, the runoff volume control targets remained mandatory for development areas located in the following watersheds:

  • Nose Creek Watershed
  • Pine Creek Watershed
  • Western Headworks Canal Direct Discharge Area

Water Resources is now issuing a 2018 bulletin to clarify the implementation of runoff volume control targets for development areas within the Nose Creek Watershed while the Nose Creek Watershed Water Management Plan is being updated and City-wide stormwater quality and runoff volume control targets are being developed. For the full update, please see the2018 Storm Volume Control Targets Bulletin.

For the previous 2015 bulletin, seeStormwater Volume Control Targets 2015 Update.

Unit Area Release Rate Requirements for Redevelopment

Effective stormwater management is an important consideration in the design of the redevelopment sites to ensure the following:

  • Redevelopments in established communities are meeting a stormwater management design standard that reduces the risk of property damage due to flooding and is based on best practices and existing constraints
  • Existing customers within the established communities are not being adversely impacted by redevelopment in the area
  • All types of redevelopment are being treated equally
  • Redevelopment is occurring sustainably and supports protecting our sensitive watersheds

Interim Requirement:

For redevelopment sites, in established neighborhoods it is challenging to find practical design solutions for the stormwater storage requirements based on the critical UARR. As an interim approach while the Stormwater Strategy and Stormwater Management Plan are being developed an interim UARR of 50 L/s/ha will be applied to all new redevelopment sites unless a higher critical UARR has been provided at the DP stage.

Free Flow Areas:

Water Resources recognizes that some uncontrolled free flow is unavoidable on redevelopment sites. On street or lane facing areas, Water Resources will allow small free flow areas when the following has been demonstrated:

  • The area of allowable uncontrolled free flow is calculated based on 2m width for the street/lane facing sides of the parcel. A minimum of 120m2 of uncontrolled free flow will be permitted on inner lots, with less street/lane facing sides.
  • Resilient landscaping has been maximized on the site
  • Roof drainage is controlled, and not contributing to the free flow area
  • The on-site storage requirements shall be based on the entire parcel size, including the footprint of the free flow area


The interim UARR of 50L/s/ha will be effective immediately. Water Resources will contact consultants for all impacted development site servicing plan (DSSP) applications currently in the queue to provide the option of cancelling the current review and revising and resubmitting with the new interim UARR.

All previous issued approvals will continue to be honoured. Sites that had a DSSP approved with a UARR lower than 50 L/s/ha may submit a full DSSP revision using the new interim UARR of 50L/s/ha. The revisions will be subject to the normal fees and review timelines (4-6 weeks depending on storm model components). Small format submissions will not be accepted for this change and no expedited timelines will be provided. Sites that had a detailed stormwater management report (SWMR) with a UARR lower than 50 L/s/ha may not be eligible to use the interim UARR of 50 L/s/ha. Please contact Water Resources, Development Approvals before submitting a new revision.

For more information, please contact Maggie Choi, Leader of Development Approvals at

Bulletin - Unit Area Release Rate Requirements for Developments, October 2018

Pond Costs Tangible Capital Assets (TCA)

Starting Feb. 1, 2012, Water Services requires that developers provide realizable costs to Asset Management, Infrastructure Planning prior to Inspection Services issuing a Construction Completion Certificate (CCC) for the pond.

For the purposes of TCA, a pond is defined as the area where the elevation of water resulting from a rainfall could rise. This should include the freeboard elevation of the pond up to the emergency spill route.

Any work in this area, should be considered part of the pond construction. Pond costs are those direct item costs associated with developing the pond within this area. To collect the data, Asset Management has developed the Pond Costs Developer Template.

The submission process for the pond costs TCA is listed below. You can also view a process map of the pondcosts TCA template submission process.

  • Developers complete the Pond Costs Developer Template.
  • When the Pond moves to the CCC stage, the Ponds TCA data should to be submitted to the Asset Management, Senior Infrastructure Performance Coordinator.
  • Please send the data to our current coordinator: Yenny Foulston.
  • The subject line of the submission to read: Pond Costs TCA Submission.

Asset Management will review the data over five business days. If there are any questions, the coordinator will contact the consultant.

Once the data has been verified, Asset Management will then contact both Development Approval and Infrastructure Delivery Inspections to proceed with the rest of the Construction Complete Certificate process.

Pond Submission and Approval Process (June 2012)

Water Services has issued a number of checklists and templates for the Pond Submission and Approval Process. Pond-specific checklists and templates include the following:

In addition, to cross-reference and to include the Pond Submission and Approvals Process, revisions have been made effective June 2012 to the Construction Drawings Guidebook and Construction Drawings Submissions Checklist. Further documentation can be found within Urban Development.

Erosion and Sediment Control Applications

Stormwater Pollution Prevention, Water Quality Services (WQS) has moved the location of the Erosion and Sediment Control application drop-off to the shipping and receiving doors, located at the east end of the Water Centre.

This provides applicants a location that is easy to find, has ample parking, signage, and staff dedicated to assitance. When dropping off an application, ring the buzzer and a staff member will assist you with the courier package.

Packages should be addressed as follows:

Water Centre, Shipping and Receiving
625 - 25 Avenue SE
c/o Stormwater Pollution Prevention
Calgary, AB, T2G 4K8

For more information, please see theErosion and Sediment Control Applications Bulletin.

Area Contact Maps

To contact a Water Resources Development Approval Engineer or Engineering Technologist who represents your project's location in Calgary, please use the maps below:

For outline plans, stormwater management reports, sanitary servicing studies

Use the Development Approval Engineer contact map.

For development permits, development site servicing plans, construction drawings

Use the Development Approval Engineering Technologist contact map.

For inspections under development and indemnification agreements, and development site servicing plans

Use the Development Inspections contact map.

Precipitation and Temperature Data files

Water Resources has made available hourly precipitation and temperature data files for the analysis and design of stormwater infrastructure in Calgary.

This information is provided to ensure consistency among the information used. It eliminates discrepancies due to different datasets being in circulation, thus saving time for both design professionals and Water Resources. Use of the information in these data files becomes mandatory for all new submissions received as of Sept. 1, 2012.

These data files are an adaptation of the Environment Canada, Meteorological Survey of Canada data, error-checked and reconciled with local weather observations. It currently covers the period 1960 through 2009; it will be updated every few years. A more in-depth explanation of the changes made is provided within the spreadsheets containing the data.

Development Inspections

Inspections of water utility infrastructure under the Master Development Agreements and Interim Indemnification Agreements follow the Consulting Engineer’s Field Services Guidelines. The Guidelines are currently under review to provide more clarity around inspection requirements and further enhance the inspection processes. In addition, inspection fees and fee structures are being reviewed for adjustments to better align with service level agreements.

As of 2018 October 8, the inspection-request/commencement-notification procedure has been modified as per the following bulletin (communicated at the 2018 Q3 Water & BILD Engagement Session on 2018 September 20)

The following form must be used when requesting for inspection services during the construction stage:

Note: The application procedure for Construction Completion Certificates (CCCs) and Final Acceptance Certificates (FACs) is under review, and will likely require the use of standardized submission and sign-off forms. As of October 8, 2018, all construction and certificate requests must be sent to the common intake e-mail:, for better tracking and expedient processing.

Indemnified Contractors

A new inspection request or construction notification procedure is being implemented to provide consistency of notification requirement for all our notifications. The new procedure will also enable more efficient and effective processing of requests.

Effective October 9, 2018 the Construction Notification/Inspection Request form will now be used when requesting for inspection services of the indemnified projects from Water Resources Inspection Services.

Each completed form is to be emailed to the Inspection Services common mail box: Please do not e-mail forms (nor fax any forms) to the Subdivision Inspection Zone Leaders/Senior Inspectors. Only the new form will be accepted due to the required information being requested for expedient processing.

All information on the form is required to process your request. Incomplete forms will be returned or omitted. Any delays as a result of the incomplete submission will be at the cost of the contractor.

Learn more about the Water Resources Indemnification Agreement.

Cathodic Protection (CP) Installation Test Plan

Water Resources is implementing an enhanced quality-assurance process for CP Installation via the use of a CP Test-Plan Checklist. This Checklist is intended to identify and formalize the inspection and sign-off on all necessary installation steps to achieve the CCC and FAC Acceptance of more complex cathodic protection installations, such as those required by LRT or water and sewer construction that includes the establishment of a permanent cathodic protection Test Point. New submissions on or after November 1, 2018 are subject to the use of the Checklist and where applicable, will be required by Development Approvals to submit a Detail, such as showing the installation of a permanent CP test station.

Fire Flow Tests

Effective July 24, 2017, the fee for a fire flow test will be $225.00 per hour. This applies to fire flow tests that are performed during scheduled work hours and do not require traffic set-ups from The City’s Roads business unit. The average time required to complete a fire flow test is three hours and includes mobilization to site, equipment set-up, fire flow test, flushing to ensure drinking water quality is protected, site clean-up, and de-mobilization.

Fire flow tests that are conducted outside of scheduled work hours, either by request or due to their location on major thoroughfares, will be charged at a rate of $400.00 per hour. If a traffic set-up is required for the test, additional charges will apply. Water Services strives to complete work as efficiently and effectively as possible while maintaining drinking water quality and site safety. Individual circumstances may impact the time required to complete this activity.

Guidelines and Specifications

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