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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
176–184 of 184Penasco Mdwca
NM3506729 · 549 served
San Pablo Mdwca
NM3500607 · 548 served
Navajo Dam Domestic Water Consumers Inc
NM3536724 · 545 served
Velarde Mdwca
NM3529421 · 543 served
Tijeras (village Of)
NM3500601 · 541 served
Ramah Water & Sanitation District
NM3508717 · 517 served
South Hills Water Company
NM3510201 · 506 served
Dixon Mdwca
NM3501421 · 500 served
Pendaries Mdwca
NM3574125 · 500 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.
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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