Lakeland South Water Hardness & Quality Report (2026)

Cross Valley Water District supplies Lakeland South, an unincorporated community in King County, Washington. The utility blends groundwater from 11 production wells, which makes up 61% of the supply, with 39% purchased surface water from the City of Everett. The wells tap local aquifers within the Puget Sound region's glaciated lowlands, while Everett's contribution comes from the Snohomish River Watershed and is treated at the Everett Water Treatment Plant. Standard filtration and disinfection processes are applied to the mixed supply before it reaches residents.

The region's geology significantly influences the water's character. Groundwater originates in Quaternary glacial aquifers composed of eskers and kames made from sand and gravel. Surface water travels over granitic batholiths and sedimentary formations like the Easton Schist, originating in the central Cascades. This geology, dominated by silica-rich volcanics and characterized by short flow paths through young, non-carbonate sediments, results in a very soft water supply with limited mineral pickup.

Because the water is very soft, you'll find minimal scale buildup, which helps extend the lifespan of appliances like water heaters, dishwashers, and washing machines. Soap lathers easily, meaning you can use less, and your skin might feel less dry after showering. A water softener isn't typically recommended for this supply. Instead, homeowners should be mindful of potential corrosion risks to pipes and fixtures due to the low mineral content and consider using phosphate additives if necessary. Cross Valley Water District ensures the water meets EPA standards, with groundwater generally at a neutral pH. Recent monitoring shows non-detect levels for lead and copper, and no PFAS exceedances.