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Chapter 54: Stormwater Management for Development and Re-development

Ordinance Summary

In 1999, the Minneapolis City Council amended Title 3 of the Minneapolis Code of Ordinances, relating to Air Pollution and Environmental Protection, by adding the Chapter 54 ordinance, entitled Stormwater Management. The Chapter 54 ordinance establishes requirements for projects with land disturbing activities on sites greater than one (1) acre, including phased or connected actions, and for existing stormwater devices.

Goals

The purpose of this ordinance is to minimize negative impacts of stormwater runoff rates, volumes and pollutants on Minneapolis lakes, streams, wetlands, and the Mississippi River by guiding future significant development and redevelopment activity, and by assuring long-term effectiveness of existing and future stormwater management constructed facilities. The Chapter 54 ordinance specifies that stormwater management standards be set according to the receiving water body, and the table below lists discharge requirements by receiving water. The standards include but are not limited to:

Minneapolis Development Review (MDR)

Stormwater Management Plans are required for all construction projects on sites greater than one (1) acre in size. These plans are reviewed through the MDR process. Responsibility for ongoing operation and maintenance is one component of the Stormwater Management Plan.

Registration

Stormwater devices shall be registered with the City of Minneapolis Department of Regulatory Services, with an annual permit being required for each registered stormwater device.

Stormwater ‘Buyout’

The "Buyout" option is reserved only for sites that demonstrate that performance of on-site stormwater management is not feasible. With approval of the City Engineer, the Chapter 54 Ordinance allows developers to contribute to the construction of off-site management of a regional stormwater facility in lieu of on-site treatment/management. Final plan approval is conditional on payment received.

Click on link on this page for the complete text of the Chapter 54 Ordinance requirements.

Receiving Waters

Total Discharge Requirements

All receiving waters

70% removal of total suspended solids

Brownie Lake

10% phosphorus load reduction

Cedar Lake

40% phosphorus load reduction

Lake of the Isles

20% phosphorus load reduction

Lake Calhoun

30% phosphorus load reduction

Lake Harriet

20% phosphorus load reduction

Powderhorn Lake

30% phosphorus load reduction

Lake Hiawatha

42% phosphorus load reduction

Lake Nokomis

25% phosphorus load reduction

Loring Park Pond

0% phosphorus load increase

Webber Pond

0% phosphorus load increase

Wirth Lake 1

30% phosphorus load reduction

Spring Lake

30% phosphorus load reduction

Crystal Lake 2

30% phosphorus load reduction

Diamond Lake

30% phosphorus load reduction

Grass Lake

30% phosphorus load reduction

Birch Pond

0% phosphorus load increase

Ryan Lake

30% phosphorus load reduction

Other wetlands

30% phosphorus load reduction

Mississippi River

70% removal of total suspended solids

Minneapolis streams

No increase in rate of runoff from site

1  Wirth Lake is not within the limits of the City of Minneapolis

2  Crystal Lake in located in Robbinsdale, but receives run-off from Minneapolis

Last updated Jan 19, 2017

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