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Douglas County, Colorado | Municipal Water Utility Company | Public Service Announcement
The local tap water supplied by Centennial Water and Sanitation District may contain several concerning impurities including m- & p-Xylene, Nitrate and nitrite and Diquat, and residents may experience issues related to elevated water hardness levels. Centennial Water and Sanitation District provides water to the community sourced primarily from Surface water supplies.
What's in your tap water?
Limited Time: Free Water Safety Report for Centennial Water and Sanitation District.
US Public Records
Centennial Water and Sanitation District Area Details
Area served:
Douglas County, Colorado
Population served:
88496
Water source:
Surface water
Phone:
303-791-0430
Address:
62 Plaza Drive, Highlands Ranch, CO 80129
3date
Contaminants Detected In Douglas County, Colorado
Bromodichloromethane; Total trihalomethanes (TTHMs); Arsenic; Arsenic; Bromoform; Dibromochloromethane Barium; Chlorate; Chloroform; Chromium (hexaval… more
Limited Time: Free Water Safety Report for Centennial Water and Sanitation District.
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
US Public Records
Centennial Water and Sanitation District
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Centennial Water and Sanitation District
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,1-Dichloropropene; 1,2,3-Trichlorobenzene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2,4-Trimethylbenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3,5-Trimethylbenzene; 1,3-Butadiene; 1,3-Dichloropropane; 1,3-Dichloropropene; 1,4-Dioxane; 2,2-Dichloropropane; 2,3,7,8-TCDD (Dioxin); 2,4,5-TP (Silvex); 2,4-D; 3-Hydroxycarbofuran; Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; Antimony; Atrazine; Benzene; Benzo[a]pyrene; Beryllium; Bromobenzene; Bromochloromethane; Bromomethane; Butachlor; Cadmium; Carbaryl; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloroethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Dalapon; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Dibromoacetic acid; Dibromomethane; Dicamba; Dichloroacetic acid; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dieldrin; Dinoseb; Diquat; Endothall; Endrin; Ethylbenzene; Ethylene dibromide; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorobutadiene; Hexachlorocyclopentadiene; Isopropylbenzene; Lindane; m-Dichlorobenzene; Mercury (inorganic); Methomyl; Methoxychlor; Metolachlor; Metribuzin; Monobromoacetic acid; Monochloroacetic acid; Monochlorobenzene (chlorobenzene); n-Butylbenzene; n-Propylbenzene; Naphthalene; Nitrite; o-Chlorotoluene; o-Dichlorobenzene; Oxamyl (Vydate); p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Propachlor; sec-Butylbenzene; Selenium; Simazine; Styrene; tert-Butylbenzene; Tetrachloroethylene (perchloroethylene); Thallium; Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroacetic acid; Trichloroethylene; Trichlorofluoromethane; Vinyl chloride; Xylenes (total)
What's in your tap water?
Learn which contaminants exceed Legal and Health Guidelines in your water.
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US Public Records
Centennial Water and Sanitation District
About Us
.. ...
For more information on your tap water, visit the U.S. Environmental Protection Agency:
Centennial Water and Sanitation District Municipal Water Company and EPACentennial Water and Sanitation District Municipal Water Report Info
Centennial Water and Sanitation District serves as the primary water and wastewater provider for Highlands Ranch. They deliver high-quality water through their state-of-the-art Joseph B. Blake Water Treatment Plant located in Highlands Ranch. Wastewater undergoes thorough treatment at the Marcy Gulch Wastewater Treatment Plant to meet strict quality standards before release.
Centennial Water prioritizes efficient resource management with a strategy focused on maximizing surface water usage. Over the past decade, approximately 90 percent of supplied water has come from renewable river sources. Highlands Ranch residents benefit from dual water sources—the South Platte River to the west and a substantial underground aquifer beneath the area. Centennial combines these supplies to enhance reliability, quality, and cost-effectiveness.
This integrated approach of using renewable water alongside the vast underground aquifer creates a true conjunctive use system, allowing aquifers to be replenished annually for over ten years. For water emergencies, contact the service department at 303-791-2185, available 24/7. If unable to reach someone at that number, please call 720-408-7034.
Municipal Water Utility Company FAQ
For more information on your tap water, visit the U.S. CDC:
Centennial Water and Sanitation District Municipal Water Company and CDCQUESTION: Why is the water so warm especially during summer months?
ANSWER: Our primary supply comes from the Trinity Aquifer with wells averaging 2,700 feet deep. The water's warmth results from natural earth heat at this depth. We pump water from wells into ground-level storage tanks until elevated storage tanks (towers) need replenishing. During winter months (November-April), water remains in ground tanks long enough to cool naturally. However, summer demand significantly reduces storage time, preventing natural cooling.
QUESTION: Are steps being taken to cool the water?
ANSWER: Absolutely! We've drilled new wells into a different aquifer that provides water approximately 26 degrees cooler than the Trinity aquifer. These wells reach about 850 feet deep but produce only one-third the volume of Trinity wells. Operating both well types equally results in roughly 10 degrees of cooling. We've gone further by adding shallower wells at four of our six pump stations and installing surface water connections at our Bob White and Lake Grove Pump Stations. These improvements will substantially reduce water temperature throughout most of the system while allowing Trinity wells to pump less and cool longer.
QUESTION: Will surface water taste and feel different?
ANSWER: Yes. Your current water is extremely "soft," while surface water from Rockett Special Utility District and City of Midlothian is "hard" with a distinctly different taste. The entire water system will be affected by these additional elements regardless of whether that specific water reaches every tap.
Centennial Water and Sanitation District delivers municipal water services to residents of Highlands Ranch and Douglas County, Colorado.
Get the official Centennial Water and Sanitation District Water Score Report for Free (limited time offer).
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