TapGraded
F

DONA ANA MDWCA

Dona Ana, NM · 16,987 served

DONA ANA MDWCA serves 16,987 people in Dona Ana, NM. It has 10 health-based violations in the last 5 years. TapGraded gives this system an F.

Score breakdown

Health-based violations (5y)

10

Monitoring violations (5y)

10

Currently unaddressed

0

Overall score

25/100

Violation history (last 5 years)

2021
2022
2023
2024
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 1.9 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

PFOS 4.2 ppt over limit
0 ppt EPA MCL: 4 ppt
PFHxS (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOA (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt

System details

System type
Community water system
Water source
Ground water
Ownership
Local government
Service connections
6,584

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Frequently asked questions

Is Dona Ana, NM tap water safe to drink?

DONA ANA MDWCA has 10 health-based violations in the last 5 years. TapGraded gives this system an F.

Does DONA ANA MDWCA have lead in its water?

The most recent 90th-percentile lead sample is 1.9 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in DONA ANA MDWCA's water?

Yes — PFAS was detected at or above the EPA MCL for 1 of the tracked analytes.

Source: EPA SDWIS/ECHO · Data as of 2026Q2