Erosion and Sediment Control (ESC) Authorizations for construction sites
The Code of Practice for Erosion and Sediment Control outlines what type of authorization is required from The City.
|Total site size||ESC Requirements||Forms Required for Submission|
|Greater than 2.0 ha||
ESC Approval Letter
|Sites between 0.4 – 2.0 ha||
Notice to Proceed Letter
Good Housekeeping Letter
|Sites less than 0.4ha||
|Amendments for sites operating under an ESC Approval Letter or a Notice to Proceed||
Prior to starting construction on sites greater than 0.4 ha, you must complete a Schedule E – Pre-construction Meeting request to obtain Written Permission to Commence Construction. Refer to Section 8 of the Code of Practice.
You require written permission prior to stopping erosion and sediment control inspections on any site 0.4ha or greater in size. Use the Schedule F – Inspection Completion Request form to request permission to stop inspections.
How to submit your ESC Plan
Submit all ESC authorizations digitally to ESC@calgary.ca. This includes first submissions for stripping and grading.
Take the following steps before submitting your ESC Plan for stripping and grading to ensure your submission will be accepted into the queue for review and approval.
|Application type||ESC Plan Application||Written Notice|
Note: Electronic submissions will receive a confirmation email with a review timeframe within three business days. Contact us at ESC@calgary.ca if you applied and did not receive an email confirmation within this time period.
Email Subject Lines
Follow the email subject line naming conventions listed below to ensure communications are properly directed when submitted to ESC@calgary.ca.
|Process||Email Subject Line – Mandatory Naming Convention||Form Required|
ESC Plan (File number and name)
e.g. ESC Plan (DP2023-XXXXX Erosion Street Multi-family)
|Notice to Proceed||Written Notice (File number and name)|
|Good Housekeeping||Good Housekeeping Request (File number and name)|
|Amendments||Amendment (File number and name)|
|Pre-Construction Meeting||Pre-construction Meeting Request (File number and name)|
|Inspection Completion||Inspection Completion Request (File number and name)|
A digital ESC Plan must consist of four PDF documents with the following mandatory naming conventions and content. Use the appropriate land use application number (e.g. CD, DA, DP, DL) The example below shows a Development Permit.
|Title - Mandatory Naming Convention||Content examples|
DP-2022-XXXXX Project Name - ESC Application
DP-2022-XXXXX Project Name - ESC Drawings
|Digital drawings (ESC1 - ESC10)|
DP-2022-XXXXX Project Name - Geotechnical Documents
|Geotechnical report, letters, nomographs|
DP-2022-XXXXX Project Name - Attachments
|Photos (combine into a single PDF), specifications, haul routes, permission letters, etc.|
The maximum file size is 20MB, if your file exceeds this size, contact ESC@calgary.ca for assistance.
Timelines for obtaining ESC Plan approval
The City’s target review timeline for ESC Plans is 14 business days. It is common for ESC Plans to require one or two resubmissions before an ESC Approval letter is granted and construction can begin. Avoid delays to your construction start date by scheduling adequate time for the entire ESC authorization process which can often take anywhere from three to 12+ weeks.
The City’s target review timeline for Written Notices and Good Housekeeping Letters is seven business days. To avoid delays, ensure the Written Notice contains all the information required in Schedule B of the Code of Practice.
ESC authorization forms and supporting documents
The Code of Practice for Erosion and Sediment Control comes into force on May 8, 2023. Any submissions received prior to this date must follow the 2022 process. Any documents received after this date must comply with the requirements outlined in Section 2 of the Code of Practice.
Expand the menu items below to view which documents are relevant to you depending on the date of first submission.
- Authorizations approved using the 2017 Standard Specifications will continue to follow those documents.
- Applications in flight using the 2022 Application and Application Instruction Manual will continue to follow that process.
- Submissions after May 8, 2023 must comply with the Code of Practice
These fillable forms align with the requirements of the Code of Practice.
|May 8, 2023||June 1, 2022||2017|
This document provides a detailed explanation of requirements for each section of the application.
|May 8, 2023||June 1, 2022||2017|
The specifications set our requirements for construction site ESC in Calgary. Use them as a reference when creating ESC Plans. The specifications form part of all approved ESC Plans and must be followed during all stages of construction.
Your plan must align with the general requirements section, and any specific erosion control or practice you are using must follow the implementation, maintenance, inspection, and removal requirements outlined within this document.
The guidelines provides an introduction to ESC principles, local regulatory requirements, ESC Plan design requirements, and considerations.
The guidelines are intended to support the planning and design stages of ESC projects in Calgary.
ESC Plan supporting tools
Section 6.0 Non–standard erosion and sediment control practices
To add additional non-standard erosion and sediment controls or support practices to your designs, include this section with your application.
Section 9.2 RUSLE Calculator
To make RUSLE calculations more streamlined and consistent, The City has created a RUSLE Calculator.
Section 9.3 Inspection Form
All inspection forms must be available onsite for a City inspector to review. Download a fillable WORD form.
Section 9.4 Sediment Containment System Information and Sediment System Design Information Sheet
To make adding the Sediment Containment System information easier to provide, The City created this expandable Excel table. Sediment containment systems are a cost-effective way to influence your P-value and slope length using skill-sets and equipment found on most sites. Download this information sheet to learn more.
Section 11.0 Drawing requirements
ESC practices must be inspected and documented by a Qualified Inspector at least every seven days, and at critical times when erosion and sediment release could occur, such as after windy weather, significant precipitation or melt events. Find out more about ESC inspections.