Stormwater Pollution Prevention - Inspection resources
As a condition of ESC Plan approval, you must complete a series of meetings and inspections.
A pre-construction meeting to discuss ESC implementation will be scheduled with The City ESC Inspector for all sites 0.4 hectares and greater and any site for which The City requested an ESC Plan. This meeting should be held after controls have been put in place but prior to the start of construction. The meeting time and date will be provided in the ESC approval letter for your ESC Plan. Contact your City ESC Inspector at least five business days before your meeting date if you need to reschedule.
The City ESC Inspector will use this pre-construction form during the meeting.
If required, simple amendments to your plan (those that do not affect RUSLE) can be made at the pre-construction meeting.
ESC inspections must be completed by a qualified inspector. This is a person who has training in ESC inspections or is directly supervised by someone with ESC training.
Inspection of all ESC practices must be completed and documented at least every seven days and at critical times when erosion or sediment releases could occur, including:
- Windy weather;
- Significant precipitation events; and/or
- Melt events.
At a minimum, significant precipitation events are defined as greater than 12 millimetres (mm) of precipitation within any 24-hour period, or precipitation or snowmelt on wet or thawing soil. Shorter duration, but more intense, events may also be deemed “significant”.
Deficiencies documented during inspection of erosion controls and sediment practices must be corrected promptly, and the maintenance documented. Corrective actions, identified by the qualified inspector, must be taken as soon as possible and not longer than 72 hours after the identification of the deficiency, as long as the corrective timelines do not risk public health or safety.
All inspection forms must be available onsite for a City inspector to review. Download a fillable WORD form.
City inspectors schedule additional inspections based on site risk. Your site will be subject to a City ESC inspection at any point during the construction of the project to confirm compliance with the ESC Plan.
The length of time required to conduct an inspection will depend on the size and complexity of the construction site. For small sites, an inspection will take approximately one to two hours. Larger, more complex, sites may require up to three hours. A staff member must be present during this time to escort the City inspector around the site and answer ESC related questions.
Before the inspection
- Ensure that the most recent copy of the approved ESC reports and drawings are available on site the day of the inspection.
- Have the site ESC inspection records present for review.
- Conduct a site inspection and confirm that best management practices have been installed and are operating as designed.
- Repair any structures that were noted as deficient during the last site inspection.
Winter is defined as the dates between November 1 and April 30 of each year.
A pre-winter inspection is required to note any deficiencies that do not comply with the winterization plan. This winter shutdown inspection must be documented and available upon request.
Inspection and maintenance of the site will be required throughout winter at the frequency defined in Section 100.13 of ESC Standard Specifications, regardless of whether a project site is subject to winter shutdown or if construction is continuing. Any change to inspection frequency during winter must be pre-approved via an amendment.
Implementation of winterization plans must be considered beginning September 15 and no later than November 1 of each year. Your winterization plan forms Section 6 of your ESC Plan.
Download a winterization plan schedule for ESC Plans submitted prior to the implementation of the 2022 ESC Plan updates.
Winter Inspection Frequency Reduction Request
You can request a reduction in ESC inspection frequency through the winter months (November 1 to April 30). You could get a reduction to once every 28 days and during precipitation and melt events.
Your site must meet the following requirements:
- There will be little to no activity on site throughout winter,
- Your site matches an approved ESC drawing, and
- There is no evidence of non-compliance (dirt ramp, release, socks and donuts, missing mandatory cover).
- Implement your winterization plan onsite (Section 6 of your ESC plan),
- Download and fill out this request form , and
- Submit the last three ESC inspection reports along with the request form.
- Email your inspection reports and request form to ESC@calgary.ca prior to November 30.
No requests will be reviewed that are submitted after the deadline.
To view resources like the ESC Standard Specifications and the Erosion and Sediment Control Field Manual go to the ESC Plans and Approvals page.