Contact Information:
(505) 827-2855 MAIN // 1-800-219-6157 (toll free)
Environmental Emergencies:
505-827-9329 (24 hrs)

New Mexico
Environment Department
Drinking Water Bureau


Drinking Water Contaminants

The U. S. Environmental Protection Agency (EPA) identifies contaminants to regulate in drinking water and sets regulatory limits for the amounts of the contaminants allowable in water provided by public water systems. These contaminant standards are required by the Safe Drinking Water Act (SDWA) and are adopted by the New Mexico Environment Department (NMED) into the NM Drinking Water Regulations [20.7.10 NMAC]. 


The U.S. Environmental Protection Agency provides extensive information:

Types of Contaminants:

  • Microorganisms
  • Disinfectants
  • Disinfection Byproducts
  • Inorganic Chemicals
  • Organic Chemicals (includes metals)
  • Radionuclides

Potential Sources of Contaminants that may be found in Drinking Water:

  • Naturally occurring contaminants and minerals (for example, arsenic, radon, uranium)
  • Local land use practices (fertilizers, pesticides, livestock, concentrated animal feeding operations)
  • Industrial/Manufacturing processes (inorganic and organic chemicals)
  • Treatment processes (disinfectants, disinfection byproducts)
  • Sewer overflows or malfunctioning wastewater treatment systems (for example, nearby septic systems)

Human Health Effects from Drinking Water Contaminants:




Nitrates ( Nitratos en español)

Sulfate ( Sulfato en español)



Boil Water Advisories

(en español)

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Quick Contact:

Runnels Building
1190 St Francis Drive
Suite S-2050
Santa Fe, New Mexico 87505

Phone: (505) 476-8620
Or -----(877) 654-8720

P O Box 5469
Santa Fe  NM  87502

Harold L. Runnels Building // 1190 St. Francis Drive, Suite N4050 // Santa Fe, New Mexico 87505 // tel. (800) 219-6157, (505) 827-2855

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