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”.
Link to Calgary Weather Stats or see box below