Atwater Village Water Hardness & Quality Report (2026)

Atwater Village, California, in Los Angeles County — a Los Angeles County neighborhood adjacent to Los Feliz and Silver Lake on the Los Angeles River in east Los Angeles — receives its water from the Los Angeles Department of Water and Power (LADWP), drawing primarily from the Owens Valley Aqueduct (Sierra Nevada snowmelt) through the LADWP distribution system.

The very soft 36.5 mg/L hardness and very low TDS of 74.2 mg/L reflect an Owens Valley Aqueduct-dominant supply with minimal Colorado River or State Water Project blending — significantly softer than communities receiving more Colorado River-blended MWD water (Reseda: ~58 mg/L; Glendale: ~80 mg/L). The Owens Valley Aqueduct delivers water from Sierra Nevada snowmelt — Precambrian Bristlecone Granite (insoluble), Cretaceous granodiorite (insoluble), and Pleistocene glacial outwash (minimal mineral loading). The essentially insoluble Sierra Nevada crystalline watershed produces the very soft Atwater Village supply.

At 36.5 mg/L, Atwater Village's water is very soft — essentially no scale forms, soap lathers abundantly, and appliances maintain excellent efficiency. Annual descaling is sufficient. The PFAS level of 2.9 ppt is low — the Los Angeles County Atwater Village river corridor and the LADWP Owens Valley supply carry minimal PFAS, and the Owens Valley Sierra Nevada source is relatively pristine.