Every Lowry Hill News story tagged Alum Treatment.

Lake of the Isles holds bluegill, crappie, largemouth bass and northern pike, and decades of restoration that cleared the Chain of Lakes have made the urban fishing better.

Grit chambers and treatment wetlands strip sediment and pollutants from stormwater before it reaches Cedar Lake and Lake of the Isles.

The cleanup of the Minneapolis Chain of Lakes, carried out over decades by a multi-agency partnership, has been described as the nation's largest urban lake restoration.

Bde Maka Ska rates strong for water clarity in the Minneapolis chain, but high water and shoreline erosion have periodically dragged down its public-health score.

When the Minneapolis chain earned C's on a water-quality report card, scientists called it a quiet triumph.

One of the lake's most important water-quality tools is invisible, sinks to the bottom, and works by chemistry.
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