
Grand Canyon, Arizona | Municipal Water Utility Company | Public Service Announcement
The regional municipal water in Grand Canyon National Park may contain several concerning contaminants including Trichloroethylene, Simazine and 1,2-Dichloroethane, along with elevated mineral hardness levels. Grand Canyon National Park supplies this region with tap water sourced primarily from Groundwater supplies.
What's in your tap water?
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US Public Records
Grand Canyon National Park Area Details

Area served:
Grand Canyon, Arizona

Population served:
15917

Water source:
Groundwater

Phone:
928-638-7888

Address:
Po Box 129, Grand Canyon, AZ 86023

3date
Contaminants Detected In Grand Canyon, Arizona
Chromium (hexavalent); Total trihalomethanes (TTHMs); Arsenic; Nitrate and nitrite Nitrate; Strontium; Vanadium… more

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Grand Canyon National Park
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Grand Canyon National Park
Tested But Not Detected:
1,1,1-Trichloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3-Butadiene; 1,4-Dioxane; 2,3,7,8-TCDD (Dioxin); 2,4,5-TP (Silvex); 2,4-D; Alachlor (Lasso); Asbestos; Atrazine; Benzene; Benzo[a]pyrene; Bromochloromethane; Bromomethane; Carbofuran; Carbon tetrachloride; Chlorate; Chlordane; Chlorodifluoromethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Dalapon; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Dichloromethane (methylene chloride); Dinoseb; Diquat; Endothall; Endrin; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorocyclopentadiene; Lindane; Methoxychlor; Molybdenum; Monochlorobenzene (chlorobenzene); Nitrite; o-Dichlorobenzene; Oxamyl (Vydate); p-Dichlorobenzene; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Simazine; Styrene; Tetrachloroethylene (perchloroethylene); Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroethylene; Vinyl chloride; Xylenes (total)

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Find out which contaminants are found above Legal and Health Guidelines.
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Grand Canyon National Park
About Us
The tributaries of Grand Canyon share common characteristics: high alkalinity (buffering capacity), pH levels around 8.5 (except warm springs at 7.5), and oxygen levels typical of healthy waterways. Water sources can be categorized into two main types: high total dissolved solids (TDS) and low TDS streams.
High TDS waterways typically emerge from lower carbonate layers, including the Little Colorado River and creeks such as National, Kanab, Matkatamiba, Crystal, Warm Springs, Havasu, Spring Canyon, Kwagunt, Royal Arch, Hermit, Three Springs, and Nankoweap. Hikers should avoid consuming high TDS water as filtration cannot remove these minerals.
Bacterial content varies significantly throughout the canyon's water sources. Many tributaries show elevated bacterial counts seasonally. These bacteria, whether from human or animal sources, can cause illness. All water should be treated or filtered before consumption, even clear-running streams, as filling containers can disturb sediment harboring bacteria.
Radionuclides have been detected in the Little Colorado River, Paria River, Havasu, Kanab, Lava Chuar creeks, and Pumpkin Springs. Additionally, Paria River, Lava Chuar Creek, and Pumpkin Springs contain concerning levels of arsenic, chromium, lead, zinc, copper, cadmium, nickel, and beryllium. Both drinking and bathing in these waters should be avoided for safety reasons.

For more information on your drinking water, visit the U.S. Environmental Protection Agency:
Grand Canyon National Park Drinking Water Company and EPAGrand Canyon National Park Municipal Water Report Information
Split Twig Figurines found in Grand Canyon date back approximately 4,000 years, handcrafted by bending and twisting willow twigs. Humans have been part of Grand Canyon's rich history for at least 10,000 years, either passing through or calling the canyon home. Many individuals have influenced the development and protection of Grand Canyon for themselves, visitors, and the National Park Service.
Archaeological evidence shows hunter-gatherers traversed the canyon at least 10,000 years ago. Ancestral Puebloan people inhabited the canyon and surrounding areas for thousands of years, leaving behind dwellings, garden sites, food storage areas, and artifacts. Modern tribes still consider Grand Canyon their ancestral homeland.
Early explorers of the canyon and Colorado River included brave individuals willing to venture into "The Great Unknown," risking their lives to document the canyon's mysteries. They were the first to record the power of the Colorado River, comprehend Grand Canyon's immense size, and share its beauty and dangers with the world.
Miners initially came seeking resources but many discovered tourism was more profitable. While maintaining claims and building access trails, enterprising miners began offering guided tours and establishing tent camps or hotels, providing the first visitor services at the canyon.
After the Santa Fe Railroad began bringing visitors to the South Rim in 1901, business flourished for innovative entrepreneurs. Despite the challenging environment dominated by the Santa Fe Railroad and its partner The Fred Harvey Company, determined individuals persevered, creating legacies that continue today.
Municipal Water Utility Company FAQ

For more information on your drinking water, visit the U.S. CDC:
Grand Canyon National Park Drinking Water Company and CDC.. ...

Grand Canyon National Park provides municipal water services to the residents of Grand Canyon and Grand Canyon, Arizona.
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US Public Records
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