District News Articles

  2. District staff routinely answers water quality questions from concerned or just curious District customers.  Below are some of the most common questions the District receives:


    • Is Bow Mar’s tap water safe to drink? Yes, our water more than meets all regulatory mandates and never has violated any standard. Drinking water is regulated through the state health department (Colorado Department of Public Health and Environment) and the U.S. Environmental Protection Agency.


    • Is there lead in my water, and if so what can I do about it? Unlike the recent news out of Flint, Michigan, Denver Water has not detected lead in its treated water or source water. However, lead can come from a customer's plumbing and/or service line which was common in older homes. After an extensive investigation, the District found that none of our customers have lead service lines serving their homes.


    • Where does our water come from? The District distributes water obtained from Denver Water. The sources of this water are primarily runoff from snowmelt high in the Rocky Mountains. The portion of the South Platte River that runs through the metro area is not a source for Denver Water.


    • Why does my water smell/taste bad? Water can pick up tastes and odors from new pipe, from low usage in the treated water system or from natural elements in the source water. Taste and odor events often occur seasonally during blooms of algae or aquatic plants. Although the plant material is removed during treatment, sometimes the odors or tastes persist (long-time District residents may remember that during the Hayman fire which occurred in 2002 our water had a “woody” taste due to wood and sediment which had traveled to Denver Water’s reservoir in Strontia Springs as a result of the fire). Tastes and odors in treated water are not harmful, but Denver Water does take steps to try and eliminate them.


    • Why is the water discolored? The discoloration is usually rust from a aging pipes. It is not harmful, but is aesthetically displeasing. Discoloration of the water can be a result of disturbances in the water line due to using a hydrant improperly, installing new pipe, or shutting off the water to a local area for system maintenance. Home plumbing can also cause discoloration of the water.


    • Do I need to filter my water? No, the first thing you need to know is this: unless you have a special medical condition, you probably don’t need to buy a water filter. The District water supply is tested regularly to ensure it meets strict federal water quality standards. That said, we recognize that you my have excellent reasons to purchase a water filter. If you do, make sure you change the filter according to the manufacturer’s instructions.


    • What is the white stuff in my water? It could possibly be caused by the dip tube from your hot water tank. Signs or symptoms that occur are:


         ~ White or bluish flakes floating in your water


         ~ Suddenly reduced or low flow at your faucets


         ~ Reduced warm or hot water flow


         ~ Reduced hot water capacity or hot water run time


    • Denver Water asks us to conserve the water, yet I see your crews wasting water, by running water out of fire hydrants and street pipes. Why do you do that? Even the best water will get stale and taste unpleasant if not used sufficiently. Conservation is important, but to maintain good, fresh water, flushing is vital, especially in areas where water usage is low.


    If you have a general water quality question that is not answered here, please e-mail Denver Water’s Quality Lab at and they will get back with you promptly.


    If you are experiencing a problem with the quality of water, please call the District office immediately at 303-979-2333.