Coon Rapids, MN Environmental Rules: Erosion Control (2026)

Chapter 8-1200 of the Coon Rapids City Code requires every applicant for a building permit, subdivision approval, or a grading permit to allow land disturbing activities to submit a storm water management plan to the Community Development Department, and the plan cannot be approved until it meets the City's Engineering Design Guidelines and the submittal criteria of Section 8-1212. Under Section 8-1213, unless the City grants an exemption or waiver, every site design must establish storm water management facilities that control peak flow rates and pollutant loads for specified design storms, giving preference in descending order to natural on-site infiltration, vegetated swales and natural depressions, retention facilities, and finally detention facilities.

Plans go to the Planning Commission when tied to a subdivision, site plan or conditional use permit, or to the Building Inspection Division for a standalone building permit, and an approved plan expires one year after approval unless construction has started; the Community Development Department can grant one 12-month extension, and a denied extension can be appealed to the City Council within 10 days. Applicants must also post a cash deposit or letter of credit covering 150 percent of the estimated cost of the required improvements as a performance security.

Section 8-1216 separately bars any land disturbing or development activity on slopes of 18 percent or more, and Section 8-1215 forbids draining or filling wetlands unless the loss is replaced with an equal public value under the Wetland Conservation Act of 1991. The Chapter is adopted under Minnesota Statutes Section 462.351 and incorporates the Minnesota Wetland Conservation Act and the NPDES general construction permit by reference; it exempts subdivisions and building permits already approved before the Chapter's effective date.