Cameron Park Water Hardness & Quality Report (2026)

Cameron Park Community Services District (CPCSD) provides water to Cameron Park, El Dorado County, California, serving approximately 8,000 residents across 5 square miles. The utility sources its supply entirely from groundwater wells tapping the Cosumnes River Groundwater Basin, with no surface water reservoirs used. Key wells include the Cameron Park Wellfield with multiple production wells pumped from depths of 200–500 feet. Water is treated at the CPCSD Water Treatment Plant, applying filtration, disinfection with chlorine, and corrosion control.

The supply draws from the Cosumnes River Groundwater Basin, part of the broader Sacramento Valley Groundwater Basin in California's Central Valley. The aquifer consists of Quaternary-age unconsolidated sediments — sands and gravels interspersed with carbonate-rich layers derived from eroded volcanic and granitic Sierra Nevada source rocks — overlying older Tertiary sedimentary formations rich in limestone and dolomite. Prolonged dissolution of these carbonate minerals as water percolates through the basin imparts a characteristically hard supply with elevated dissolved mineral content.

Hard water promotes scale buildup in water heaters, dishwashers, washing machines, and coffee makers, where mineral deposits reduce efficiency and lifespan. Regular vinegar descaling, installing scale-inhibiting showerheads, and using detergent boosters help mitigate effects. A water softener is recommended for households experiencing spotting on dishes or dry skin. CPCSD maintains EPA compliance with pH typically 7.5–8.5 and low lead and copper levels through corrosion control; naturally occurring arsenic is treated via blending and reverse osmosis, and no notable PFAS detections have been reported; water is monitored quarterly with results publicly available.