New Mexico County Water Quality Reports

Water quality reports for all counties in New Mexico. Browse by county to see safety scores, violations, and ZIP code data.

Browse water quality data by county in New Mexico. Each county page lists all ZIP codes with safety scores and EPA violation data.

← New Mexico state overview

Bernalillo County, NM: 560 Health Violations — 39/100 (2026)

2026 report: Bernalillo County, NM scores 39/100 (Grade F). 46 ZIP codes analyzed. 9268 EPA violations found. Free report with contaminant data and filt...

Catron County, NM: Lead Above EPA Limits — 66/100 (2026)

2026 report: Catron County, NM scores 66/100 (Grade C). 7 ZIP codes analyzed. 62 EPA violations found. Lead above EPA limits. Free report with contamina...

Chaves County, NM: 5 Health Violations — 75/100 (2026)

2026 report: Chaves County, NM scores 75/100 (Grade B). 6 ZIP codes analyzed. 42 EPA violations found. Free report with contaminant data and filter picks.

Cibola County, NM: 8 Health Violations — 71/100 (2026)

2026 report: Cibola County, NM scores 71/100 (Grade B). 6 ZIP codes analyzed. 183 EPA violations found. Free report with contaminant data and filter picks.

Colfax County, NM: 110 Health Violations — 46/100 (2026)

2026 report: Colfax County, NM scores 46/100 (Grade D). 8 ZIP codes analyzed. 287 EPA violations found. Free report with contaminant data and filter picks.

Curry County, NM: 6 Health Violations — 69/100 (2026)

2026 report: Curry County, NM scores 69/100 (Grade C). 8 ZIP codes analyzed. 54 EPA violations found. Free report with contaminant data and filter picks.

De Baca County, NM: 9 Violations — 66/100 (2026)

2026 report: De Baca County, NM scores 66/100 (Grade C). 2 ZIP codes analyzed. 9 EPA violations found. Free report with contaminant data and filter picks.

Doña Ana County, NM: 45 Health Violations — 78/100 (2026)

2026 report: Doña Ana County, NM scores 78/100 (Grade B). 32 ZIP codes analyzed. 163 EPA violations found. Free report with contaminant data and filter ...

Eddy County, NM: 20 Health Violations — 71/100 (2026)

2026 report: Eddy County, NM scores 71/100 (Grade B). 9 ZIP codes analyzed. 167 EPA violations found. Free report with contaminant data and filter picks.

Grant County, NM: 13 Health Violations — 66/100 (2026)

2026 report: Grant County, NM scores 66/100 (Grade C). 18 ZIP codes analyzed. 85 EPA violations found. Free report with contaminant data and filter picks.

Guadalupe County, NM: 2 Health Violations — 64/100 (2026)

2026 report: Guadalupe County, NM scores 64/100 (Grade C). 5 ZIP codes analyzed. 25 EPA violations found. Free report with contaminant data and filter p...

Harding County, NM: 1 Health Violation — 62/100 (2026)

2026 report: Harding County, NM scores 62/100 (Grade C). 5 ZIP codes analyzed. 3 EPA violations found. Free report with contaminant data and filter picks.

Hidalgo County, NM: 24 Health Violations — 57/100 (2026)

2026 report: Hidalgo County, NM scores 57/100 (Grade C). 4 ZIP codes analyzed. 65 EPA violations found. Free report with contaminant data and filter picks.

Lea County, NM: 18 Health Violations — 69/100 (2026)

2026 report: Lea County, NM scores 69/100 (Grade C). 14 ZIP codes analyzed. 188 EPA violations found. Free report with contaminant data and filter picks.

Lincoln County, NM: 13 Health Violations — 66/100 (2026)

2026 report: Lincoln County, NM scores 66/100 (Grade C). 18 ZIP codes analyzed. 91 EPA violations found. Free report with contaminant data and filter pi...

Los Alamos County, NM: 6 Health Violations — 70/100 (2026)

2026 report: Los Alamos County, NM scores 70/100 (Grade B). 3 ZIP codes analyzed. 56 EPA violations found. Free report with contaminant data and filter ...

Luna County, NM: 5 Health Violations — 75/100 (2026)

2026 report: Luna County, NM scores 75/100 (Grade B). 3 ZIP codes analyzed. 53 EPA violations found. Free report with contaminant data and filter picks.

McKinley County, NM: 18 Health Violations — 64/100 (2026)

2026 report: McKinley County, NM scores 64/100 (Grade C). 25 ZIP codes analyzed. 93 EPA violations found. Free report with contaminant data and filter p...

Mora County, NM: 12 Health Violations — 58/100 (2026)

2026 report: Mora County, NM scores 58/100 (Grade C). 13 ZIP codes analyzed. 138 EPA violations found. Free report with contaminant data and filter picks.

Ocean County, NM: 3 Health Violations — 76/100 (2026)

2026 report: Ocean County, NM scores 76/100 (Grade B). 1 ZIP code analyzed. 21 EPA violations found. Free report with contaminant data and filter picks.

Otero County, NM: 15 Health Violations — 76/100 (2026)

2026 report: Otero County, NM scores 76/100 (Grade B). 15 ZIP codes analyzed. 175 EPA violations found. Free report with contaminant data and filter picks.

Quay County, NM: 3 Health Violations — 62/100 (2026)

2026 report: Quay County, NM scores 62/100 (Grade C). 9 ZIP codes analyzed. 49 EPA violations found. Free report with contaminant data and filter picks.

Rio Arriba County, NM: 47 Health Violations — 53/100 (2026)

2026 report: Rio Arriba County, NM scores 53/100 (Grade D). 27 ZIP codes analyzed. 271 EPA violations found. Free report with contaminant data and filte...

Roosevelt County, NM: 5 Health Violations — 65/100 (2026)

2026 report: Roosevelt County, NM scores 65/100 (Grade C). 10 ZIP codes analyzed. 38 EPA violations found. Free report with contaminant data and filter ...

San Juan County, NM: Lead Above EPA Limits — 67/100 (2026)

2026 report: San Juan County, NM scores 67/100 (Grade C). 16 ZIP codes analyzed. 138 EPA violations found. Lead above EPA limits. Free report with conta...

San Miguel County, NM: 60 Health Violations — 51/100 (2026)

2026 report: San Miguel County, NM scores 51/100 (Grade D). 15 ZIP codes analyzed. 162 EPA violations found. Free report with contaminant data and filte...

Sandoval County, NM: 59 Health Violations — 73/100 (2026)

2026 report: Sandoval County, NM scores 73/100 (Grade B). 15 ZIP codes analyzed. 383 EPA violations found. Free report with contaminant data and filter ...

Santa Fe County, NM: 80 Health Violations — 50/100 (2026)

2026 report: Santa Fe County, NM scores 50/100 (Grade D). 23 ZIP codes analyzed. 350 EPA violations found. Free report with contaminant data and filter ...

Sierra County, NM: 16 Health Violations — 66/100 (2026)

2026 report: Sierra County, NM scores 66/100 (Grade C). 7 ZIP codes analyzed. 57 EPA violations found. Free report with contaminant data and filter picks.

Socorro County, NM: 21 Health Violations — 70/100 (2026)

2026 report: Socorro County, NM scores 70/100 (Grade B). 9 ZIP codes analyzed. 105 EPA violations found. Free report with contaminant data and filter pi...

Taos County, NM: 25 Health Violations — 59/100 (2026)

2026 report: Taos County, NM scores 59/100 (Grade C). 21 ZIP codes analyzed. 128 EPA violations found. Free report with contaminant data and filter picks.

Torrance County, NM: 18 Health Violations — 66/100 (2026)

2026 report: Torrance County, NM scores 66/100 (Grade C). 9 ZIP codes analyzed. 111 EPA violations found. Free report with contaminant data and filter p...

Union County, NM: 4 Health Violations — 72/100 (2026)

2026 report: Union County, NM scores 72/100 (Grade B). 6 ZIP codes analyzed. 35 EPA violations found. Free report with contaminant data and filter picks.

Valencia County, NM: 39 Health Violations — 58/100 (2026)

2026 report: Valencia County, NM scores 58/100 (Grade C). 13 ZIP codes analyzed. 371 EPA violations found. Free report with contaminant data and filter ...

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