Picnic Point-North Lynnwood Water Hardness & Quality Report (2026)

Picnic Point-North Lynnwood, Washington, in Snohomish County on the Puget Sound shoreline north of Lynnwood — an unincorporated coastal community between the Whidbey Island ferry corridor and the Lynnwood urban center — receives its municipal water from the Alderwood Water & Wastewater District, which draws from the Cascade Mountain watershed through purchased supply from Seattle Public Utilities (Cedar River and Tolt River systems) or regional Snohomish County supplies. Alderwood Water serves the north Snohomish County communities through a regional distribution network connected to the Seattle regional water system.

The moderately soft 60 mg/L hardness and TDS of 139.4 mg/L reflect the Pacific Northwest Cascade Mountain watershed's characteristic soft water geology. The Cedar River and Tolt River drain the Western Cascade Range — a landscape dominated by Eocene Roslyn Formation volcanic rocks, Oligocene and Miocene volcanic intrusions, granodiorite plutons, and Tertiary andesitic volcanics of the Cascades volcanic arc — all igneous and metamorphic rock terrains with essentially no soluble carbonate content. Pacific Northwest precipitation falling on these Cascade volcanic terrains picks up minimal dissolved minerals, producing characteristically soft, clear water throughout the Puget Sound regional supply.

At 60 mg/L, Picnic Point-North Lynnwood's water is moderately soft — comfortable for everyday household use in this Puget Sound coastal community. Scale forms slowly over many months in kettles and appliances, soap lathers well, and the dishwasher produces clean results. Semi-annual descaling of heating appliances is adequate. The PFAS level of 2.7 ppt is excellent — among the lowest in the Washington state dataset, reflecting the pristine Cascade Mountain watershed protection maintained by Seattle Public Utilities and the relatively limited industrial PFAS sources in the North Lynnwood corridor.