Del Mar receives its municipal water from the San Dieguito Water District, which sources water from both local and imported supplies. Like all San Diego County water, it arrives extremely hard — with dissolved mineral levels consistently in the "very hard" classification. While the municipal supply meets federal standards at the treatment plant, water quality at your tap depends entirely on the condition of the pipes between the city main and your faucet. Homes with aging copper, galvanized steel, or mixed-material plumbing can introduce lead, copper, iron, and bacteria into your water at levels that far exceed what the city delivers.Homewerx performs dual-point sampling — at the main to establish the baseline municipal quality, and at the kitchen tap (first-draw and flushed) to measure your plumbing's contribution. We test for the full contaminant panel: lead, copper, PFAS, manganese, coliform bacteria, disinfection byproducts, hardness, iron, sediment, and pH. Results include a plain-language report showing concentrations versus EPA and California limits, plus specific recommendations for treatment.