Longfellow Community Water Hardness & Quality Report (2026)

Longfellow Community, Minneapolis, Minnesota — a major south Minneapolis neighborhood district (Longfellow Community is a significant Minneapolis neighborhood area — a collection of south Minneapolis neighborhoods including Howe, Cooper, Longfellow, and Hiawatha along Minnehaha Avenue and the Hiawatha corridor; Longfellow is known for its beautiful Minnehaha Creek (one of Minneapolis's most beloved waterways — Minnehaha Creek winds through the Longfellow neighborhood before cascading into Minnehaha Falls, the most famous waterfall in the Twin Cities; Minnehaha Park is one of the most visited parks in the Minneapolis park system)), home of Minnehaha Falls (the iconic waterfall immortalized by Henry Wadsworth Longfellow's poem 'The Song of Hiawatha'), a diverse Hennepin County community with a significant Hmong-American, East African, and working-class and professional population, adjacent to the Mississippi River and the Ford Pkwy bridge corridor, and a Minneapolis neighborhood with a strong community garden and outdoor recreation culture — draws its municipal water supply via the City of Minneapolis Water Treatment Plant. Water hardness in Longfellow Community measures 125.5 mg/L — classified as moderately hard.

Longfellow Community's moderate hardness reflects the south Minneapolis Mississippi River supply's calcareous-moderate character. The Minneapolis Water Treatment Plant distributes Mississippi River supply with effective treatment to the south Minneapolis Longfellow zone, producing the moderate 125.5 mg/L.

At 125.5 mg/L, Longfellow residents encounter moderate scale accumulation. Monthly cleaning is recommended. City of Minneapolis Water Treatment Plant consistently delivers water meeting all Minnesota PCA and EPA Safe Drinking Water Act requirements.