Eagan, MN Environmental Rules: Erosion Control (2026)

The City of Eagan's stormwater management ordinance, City Code § 4.34, folds erosion and sediment control into the land disturbance permitting the city's Engineering Division administers for grading, new development, redevelopment and any activity moving more than 10,000 square feet of earth. Section 4.34(C) defines 'erosion control' as the methods used to prevent temporary and permanent erosion, including soil stabilization practices, horizontal slope grading, temporary or permanent ground cover, and construction phasing, and separately defines sediment control practices such as silt fences, sediment traps, earth dikes and storm drain inlet protection.

Before a permit issues, § 4.34(D)(2)(i) requires the land disturbance plan to include temporary erosion and sediment control measures the city determines necessary for public safety, health and welfare: fencing any hazardous slope of 3:1 or steeper along a project boundary, sloping banks and fill areas so they cannot slide or cave while minimizing erosion or dust during grading, and properly draining or leveling graded and ungraded areas. The stormwater pollution prevention plan (SWPPP) required under § 4.34(E)(1)(b) must be prepared by someone trained in erosion prevention and sediment control, and it sets a maintenance and inspection schedule: BMPs must be checked at least once every seven days on exposed soil during active construction, within 24 hours after any rainfall of more than half an inch in 24 hours, and every 30 days once an area is stabilized.

Perimeter control devices need sediment removed within 24 hours once buildup reaches one-third of their height. Violating the approved plan is a misdemeanor under § 4.34(J), and the city can order abatement, revoke the permit, or perform the corrective work itself and bill the violator.