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New Mexico Water Quality
184
Utilities in database
1.9M
Residents served
30%
On private wells
2
Key contaminants tracked
Drinking Water in New Mexico
New Mexico has 184 community water systems serving approximately 1.9 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, nitrates. 30% of New Mexico residents rely on private wells. NMED holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in New Mexico
76–100 of 184Timberon W and Sd
NM3546419 · 2,698 served
Santa Rosa Water Supply
NM3515010 · 2,681 served
Bayard Municipal Water System
NM3522109 · 2,616 served
Garfield Mdwca
NM3529007 · 2,504 served
Polvadera Mdwca
NM3566628 · 2,470 served
Hatch Water Supply System
NM3511607 · 2,366 served
Questa Water System
NM3506829 · 2,337 served
Logan Water System
NM3526920 · 2,321 served
Elephant Butte Water System
NM3530827 · 2,286 served
Upper La Plata Water Users Association
NM3510624 · 2,265 served
Columbus Water System
NM3523016 · 2,200 served
Mesilla Water System
NM3560007 · 2,167 served
Ruidoso Downs Water System
NM3513214 · 2,146 served
Pecos Water System
NM3518325 · 2,133 served
Lower Rio Grande Pwwa East Mesa
NM3512007 · 2,104 served
Philmont Boy Scout Ranch - Headquarters
NM3530504 · 2,000 served
Las Campanas Water System
NM3500626 · 1,937 served
La Luz Mdwca
NM3513719 · 1,917 served
Artesia Rural Water Cooperative
NM3530608 · 1,880 served
Loving Water System
NM3521108 · 1,862 served
Capitan Water System
NM3512514 · 1,821 served
Fort Sumner Municipal Water System
NM3527706 · 1,789 served
Cuba Water System
NM3509023 · 1,789 served
Cottonwood Water Mdwca
NM3555008 · 1,781 served
Carrizozo Water System
NM3512614 · 1,758 served
Key Contaminant Concerns in New Mexico
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always from human activity — nitrate interferes with the blood's ability to carry oxygen. The United States produces over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
New Mexico Water FAQs
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Data source: Utility data from EPA SDWIS. 184 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22