Longfellow Community Water Hardness & Quality Report (2026)

Minneapolis Public Works Water Treatment & Distribution Services provides water to the Longfellow Community, a neighborhood in southeast Minneapolis, Hennepin County, Minnesota. Water is sourced from groundwater via 23 wells tapping deep aquifers, primarily the Jordan Sandstone formation. Treatment occurs at facilities including the Columbia Heights plant at 4100 Marshall St. NE, Fridley, MN, and multiple distribution sites. The utility serves over 400,000 people across Minneapolis and surrounding areas, with annual Consumer Confidence Reports detailing compliance.

Minneapolis groundwater originates from recharge over the Mississippi River watershed, but the dominant influence is the underlying Twin Cities Basin geology. Water percolates through glacial deposits into Paleozoic bedrock aquifers such as the Prairie du Chien-Jordan, comprising dolomitic limestones and sandstones from the Ordovician period. These formations release dissolved minerals, creating a hard supply character; confined aquifers prevent surface contamination but enhance mineral content through extended contact with carbonate rocks.

Hard water in this area leads to scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap lathering is poor, leaving films on skin, hair, and laundry. Maintenance involves regular descaling of fixtures and appliances; a water softener is recommended for households to mitigate staining, spots on glassware, and dry skin. Annual reports confirm compliance with federal standards; treatment includes aeration, filtration, chlorination, and corrosion control, with undetectable levels of priority contaminants.