
Los Alamos, New Mexico | Municipal Water Utility Company | Public Service Announcement
Los Alamos Municipal Water System provides residential tap water that may contain several concerning contaminants including Dalapon, Tribromoacetic acid, Dibromoacetic acid and 1,2,4-Trichlorobenzene, along with elevated mineral content causing significant water hardness. The system serves your local community with water sourced from underground Groundwater supplies beneath Los Alamos County.
What's in your tap water?
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Los Alamos Municipal Water System Area Details

Service region:
Los Alamos, New Mexico

Residents served:
25137

Water origin:
Groundwater

Contact number:
505-662-8333

Location:
1000 Central Ave, 130, Los Alamos, NM 87544

3date
Contaminants Found In Los Alamos, New Mexico
Bromodichloromethane; Chromium (hexavalent); Dibromochloromethane; Total trihalomethanes (TTHMs); Arsenic; Arsenic; Fluoride; Xylenes (total) Bromofor… more

Get the Official Los Alamos Municipal Water System Water Score Report at No Cost (limited time offer).
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Los Alamos Municipal Water System
Annual Municipal Water Report
Comprehensive List of Water Contaminants Evaluated by Los Alamos Municipal Water System
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); Antimony; Atrazine; Barium; Benzene; Benzo[a]pyrene; Beryllium; Bromochloromethane; Bromomethane; Cadmium; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Cyanide; 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; Mercury (inorganic); Methoxychlor; Monochlorobenzene (chlorobenzene); 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); Selenium; Simazine; Styrene; Tetrachloroethylene (perchloroethylene); Thallium; Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroethylene; Vinyl chloride

What's in your tap water?

Discover which substances exceed Legal and Health Guidelines in your water supply.
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Los Alamos Municipal Water System
About Us
We're pleased to present this Annual Municipal Water Quality Report (Consumer Confidence Report) as required by the Safe Drinking Water Act (SDWA). This document provides essential information about your water source, its contents, and how it compares to regulatory standards.
Our water comes from twelve wells that tap into the main aquifer beneath the Pajarito Plateau in the Santa Fe formation. The water production team at Los Alamos Department of Public Utilities carefully oversees the pumping process to ensure quality. A comprehensive wellhead protection program safeguards this underground water source.
The County has water rights totaling 5,541.3 acre-feet annually as determined by the New Mexico Office of the State Engineer. Additionally, we have an agreement with the U.S. Bureau of Reclamation for another 1,200 acre-feet per year from the San Juan/Chama project, though this source remains unutilized.
Special precautions: Individuals with compromised immune systems, including those undergoing cancer treatment, organ transplant recipients, people with HIV/AIDS, some elderly residents, and infants may face higher risks from waterborne infections. These individuals should consult healthcare providers about their water consumption. The Safe Drinking Water Hotline (800-426-4791) offers CDC guidelines on reducing infection risks from Cryptosporidium and other microbial contaminants.
All municipal water, including bottled varieties, naturally contains small amounts of certain contaminants. Their presence doesn't necessarily indicate a health risk. For detailed information about Los Alamos' water system vulnerability, contact Jack Richardson, Deputy Utilities Manager at 505.662.8333.

For comprehensive information about your municipal water quality, visit the U.S. Environmental Protection Agency:
Los Alamos Municipal Water System Municipal Water Company and EPALos Alamos Municipal Water System Municipal Water Report Info
Water quality monitoring is conducted regularly, with results published according to federal and state regulations. The Source Water Assessment and Protection (SWAP) evaluation completed in 2003 by the New Mexico Environment Department rated the susceptibility of Los Alamos' water system as "moderately high." This assessment helps identify potential contamination sources and informs protective measures.
Municipal Water Utility Company FAQ

For additional health-related water information, visit the U.S. CDC:
Los Alamos Municipal Water System Municipal Water Company and CDC
- How is water treated in Los Alamos?
- What causes water hardness in our region?
- How often is municipal water tested?
- What filtration options are recommended for local residents?
- How do I report water quality concerns?

Los Alamos Municipal Water System delivers essential water services to residents throughout Los Alamos and surrounding communities in New Mexico.
Limited Time: Free Water Safety Report for Los Alamos Municipal Water System.

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