Superior Water Hardness & Quality Report (2026)

Superior Municipal District No. 1 serves the Town of Superior, Colorado, in Boulder County, providing drinking water to approximately 11,494 residents. The utility sources its water from surface water reservoirs within the Colorado-Big Thompson watershed. A terminal reservoir holds about 130 million gallons, and the district treats an average of 2 million gallons per day. This supply is part of the Colorado-Big Thompson watershed, which spans the Front Range where snowmelt and rainfall interact with diverse geology. Precambrian crystalline rocks dominate, interspersed with sedimentary layers like the Fountain Formation limestones and Morrison Formation shales from the Paleozoic-Mesozoic eras. These contribute dissolved minerals, yielding a moderately mineralized supply. No specific aquifer is involved, as surface reservoirs capture runoff shaped by this geology, imparting a characteristic mineral profile without extreme softness or hardness.

At moderately hard levels, scale buildup occurs in water heaters, dishwashers, and coffee makers, reducing efficiency and lifespan. Faucet aerators and showerheads may clog, leading to lower flow. Regular maintenance includes flushing water heaters annually and descaling appliances with vinegar. A water softener is often recommended for households with these issues to extend appliance life and improve soap efficiency, especially in areas with longer-term hard water exposure. The 2024 Consumer Confidence Report for Superior MD No 1 covers 2023 data, monitoring microbial, inorganic, and organic contaminants per federal and state regulations. Potential detections include butyl benzyl phthalate, hormones, bis(2-chloroethyl) ether, and 1,2,4-trichlorobenzene, alongside elevated minerals. Treatment involves standard surface water processes like filtration and disinfection. No specific pH, lead/copper, or PFAS data found in retrieved sources; compliance is maintained with EPA standards. Residents should flush taps for 10-15 minutes if discolored.