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Continued: Efforts on land, water cleaning Colby Lake

  • Article by: JIM ANDERSON , Star Tribune
  • Last update: June 15, 2013 - 2:00 PM

Using grant money from the state’s Clean Water Land & Legacy Fund, 25 rain gardens are being built to filter phosphorus and other pollutants in the runoff before they can reach the lake, she said. About half were installed last year, and the remainder will be completed by mid-July.

The rain gardens, using deep-rooted plants and grasses that absorb a lot of water, were installed at no cost to homeowners, she said, though they will take over responsibility for their maintenance.

Designers also worked with homeowners — whose properties were picked based on a study of surface water flow to the lake — so the rain gardens were a good fit with their property.

The city also had a role in the neighborhood effort, Hong added. In planning a recent street improvement project, roads were designed with boulevard strips so the roads could be narrower, thus cutting down on the amount of impervious surface that adds to runoff.

Jim Anderson • 651-925-5039

Twitter: @StribJAnderson

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