Woodland Water Hardness & Quality Report (2026)

Woodland, California, the Yolo County seat in the Sacramento Valley west of Sacramento — a historic agricultural city known as the 'City of Trees,' with a large agricultural processing, tomato canning, and almond industry in the Sacramento Valley — draws its municipal water supply from the Sacramento River and local Sacramento Valley Groundwater Basin wells via the City of Woodland Public Works Water Division. Water hardness in Woodland measures 38 mg/L — classified as very soft.

Woodland's very soft supply reflects the Sacramento River's soft northern California origin. The Sacramento River above Woodland drains: the Klamath Mountains (Paleozoic–Mesozoic accreted terranes — calcium-poor ultramafic and calcareous ophiolite, but dominated by fast-flowing Trinity and McCloud Rivers carrying minimal dissolved calcium); the northern Sierra Nevada (Cretaceous granodiorite and Paleozoic metasediments — moderate calcium input but high flow rates); and the Cascade Range (calcium-poor volcanic terrain). The Sacramento River's high discharge volume and relatively fast-flowing northern California rivers minimize mineral contact time, producing the naturally soft supply at Woodland — one of the softest municipal supplies in the Central Valley.

With hardness at 38 mg/L, Woodland residents enjoy very soft water with essentially no scale challenges. City of Woodland Public Works Water Division consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.