Four Seasons Area Water Quality Project


Project Number: NL-2

Project Status   |  Active

Original project plans were developed and conditionally approved by the BCWMC in 2013, however those plans were not implemented. 90% plans for water quality improvement measures to be constructed within and adjacent to Dominium's redevelopment were conditionally approved by the Commission at their April 16, 2020 meeting. Construction is slated to begin in 2020 or 2021.

Project Funding   |   Not Grant Funded

The estimated cost of the original (2013) Four Seasons Area Water Quality Improvement Project was $990,000, of which $166,000 was funded from the BCWMC's Capital Improvement Program Closed Project Account and $824,000 was collected through ad valorum tax levy collected via Hennepin County in 2013. Through the 2020 agreement with Dominium, up to $808,596 of the remaining project funds will be used for the water quality improvement projects on and adjacent to the redevelopment of the mall site.

Project Description

The BCWMC, in cooperation with the City of Plymouth, planned to construct a water quality improvement project in the area southwest of Highway 169 and Rockford Road (the former Four Seasons Mall area) in order to improve the water quality of the North Branch of Bassett Creek (which flows along the east of the site) and to help meet the phosphorous reduction goal for Northwood Lake. In 2013, a project was designed but due to residents' concerns about the proposed removal of trees and other project plans, the original project was not implemented.

In 2017, the BCWMC entered an agreement with a private developer (Rock Hill Management) and the City of Plymouth to implement water quality improvement practices in conjunction with the redevelopment of the Four Seasons Mall site. Unfortunately, that project also was not implemented due to the redevelopment project falling through.

In May 2020, the BCWMC entered an agreement with a second redevelopment company (Dominium) to implement water quality improvement practices and wetland restoration in the Four Seasons Mall area. The project plans were conditionally approved in April 2020. The project will annually capture at least 100 pounds of total phosphorus above the pollutant removals required by BCWMC rules. The best management practices planned for the site will treat stormwater from the site and off-site areas with a filtration basin, an underground filtration system, two smaller stormwater ponds, and a large stormwater pond with an iron-enhanced sand filter (IESF) bench. A city-owned wetland to south of the site will also be restored and used to further improve water quality by allowing flows to meander slowly through the wetland.

More Information

2020 Domimium Development: Presentation of Project Plans and BCWMC Engineer's Comments

2017 Agora Development (not implemented): Conditionally Approved 90% Design Plans and BCWMC Engineer's Comments

Original Feasibility Study: Four Seasons Mall Water Quality Improvement Feasibility Report (Wenck Assoc., July 2012)

BCWMC Resolution Ordering Project: Resolution 12-09 (September 20, 2012)

Contact: BCWMC Administrator Laura Jester at laura.jester@keystonewaters.com or 952-270-1990.