Water treatment in Arvada for Denver Metro homes

Arvada's tap water is Denver Water surface supply — Clear Creek and the Fraser River, treated at the Ralston or Arvada Water Treatment Plant before it reaches your tap. The system meets federal and state drinking-water standards, and the City of Arvada publishes annual water-quality reports. What leaves the plant and what reaches your faucet are two different stories, though — chlorine residual is on by design, disinfection byproducts build in the distribution main overnight, and older homes in Olde Town Arvada, Hackberry Hill, and Club Crest still run pre-1986 copper pipe with lead solder that picks up trace metals between the main and the faucet. A real on-site test at your address is the only way to know what your tap delivers.

Arvada's reports most often surface haloacetic acids (HAA5), trichloroacetic acid, dichloroacetic acid, total trihalomethanes, chloroform, lead (typically from lead solder and brass fixtures in older homes rather than the source water itself), and naturally occurring radium in the granite of the Clear Creek headwaters. Inside the city, hard water and chlorine taste and odor top the everyday list; on the western edge where homes run on private wells, the list shifts to iron and manganese staining, occasional arsenic from the alluvial material, and coliform after heavy rain. Testing at your address sorts out which are actually present.

For homes on the Denver Water supply, test at least once a year for hardness, chlorine residual, pH, TDS, lead and copper (especially if your home was built before 1986), and any radium you want confirmed. For homes on a private well along the western edge, test annually for coliform bacteria, nitrates, iron, manganese, and arsenic. Test again after any major storm or spring runoff pulse, after work on the well or plumbing, and after remodeling in a pre-1980 home where you have disturbed solder or pipe joints. Once a year is the minimum — more often if your source or plumbing changes.

Most do. Denver Water's finished supply for Arvada comes out of the plant with measurable hardness — about 93.4 mg/L (5.5 gpg), which is moderately hard on the USGS scale. Inside many homes the working hardness climbs higher because of mineral pickup in older copper service lines and the long distribution runs to in-fill properties. You'll notice it as chalky buildup on faucets and showerheads, film on glassware, and accelerated wear on water heaters, dishwashers, and ice makers. On the western edge where homes pull from private foothills wells, the hardness can run well above the city average. A properly sized ion-exchange water softener removes the calcium and magnesium that drive the damage.

Yes. Our Denver Metro office at (303) 248-3390 covers Arvada and the surrounding inner-ring northwest communities along the I-70 corridor — Westminster to the north, Wheat Ridge to the south, Denver to the east, and Lakewood across the western edge. On-site well testing, softener and reverse osmosis installs, and filtration work on older foothills properties with private wells are routine for that crew. Statewide dispatch out of our four regional offices covers anything further out.

For most Arvada homes, yes. Denver Water meets federal and state standards at the plant, but chlorine residual, disinfection byproducts, trace metals from older plumbing, and naturally occurring radium are all still present at the tap to some degree. Under sink water filters with a carbon stage handle taste and odor, but a reverse osmosis system pulls those down to drinking-water levels at the one tap your family drinks from. An under-sink RO unit with a carbon stage ahead of the membrane is the standard setup for Denver Water supply homes. For foothills-edge wells, RO also handles nitrates and arsenic.