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Bernalillo County, NM Water Quality

Water quality data for 11 public water systems serving Bernalillo County, New Mexico — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 11 water systems · 20 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Bernalillo County Earns a B

Bernalillo County: 20 communities across 11 water systems. 95.0% have no open violations.

  • Median lead where detected: 1.30 ppb
  • 12 communities with a lead detection, 7 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 18 with significant inspection deficiencies
  • 95.0% of communities have no open violations
1.3 ppb
Median Lead Level
County-wide, 90th percentile
11
Water Systems
Active CWS & NTNCWS
95%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Sandia Heights
    2.10 ppb
    1 health-based violation since 2015
    A
  • Tijeras
    1.00 ppb
    4 health-based violations since 2015
    B
  • Isleta
    0.70 ppb
    1 significant inspection deficiency
    B
  • Cedar Crest
    1.00 ppb
    1 significant inspection deficiency
    B
  • Sandia Park
    2.40 ppb
    1 significant inspection deficiency
    B
⚠ Needs Attention
  • Chilili
    1.00 ppb
    3 violations currently open
    F
  • Ponderosa Pine
    3.30 ppb
    1 significant inspection deficiency
    C
  • Sandia Knolls
    7.30 ppb
    1 significant inspection deficiency
    C
  • Pajarito Mesa
    Not reported
    5 significant inspection deficiencies
    C
  • Barton
    1.30 ppb
    Copper above the 1,300 ppb action level
    B
County Lead Level — Median 1.3 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.3 ppb — 8.7% of the federal action level
Systems by Lead Level
Under 5 ppb
11
5 – 10 ppb
1
No Data
8

All Cities in Bernalillo County

Albuquerque Not detected B
South Valley Not detected B
North Valley Not detected B
Los Ranchos de Albuquerque Not detected B
Paradise Hills Not detected B
Sandia Heights 2.10 ppb A
Kirtland AFB Not detected B
Barton 1.30 ppb B
Ponderosa Pine 3.30 ppb C
Sandia Knolls 7.30 ppb C
Paa-Ko 1.30 ppb B
Isleta 0.70 ppb B
Sedillo 1.30 ppb B
Tijeras 1.00 ppb B
Cedar Crest 1.00 ppb B
Sandia Park 2.40 ppb B
Pajarito Mesa Not reported C
Chilili 1.00 ppb F
San Antonito 1.30 ppb B
Carnuel Not detected B
Showing 20 cities
No active violations Active violations

About Bernalillo County Drinking Water

Bernalillo County is served by 11 water systems covering 20 communities. 95% have no open violations.

Of the communities reporting lead results, 12 recorded a detection, with a median of 1.30 ppb — 9% of the federal action level. 7 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 18 of them.

Frequently Asked Questions

Is Bernalillo County tap water safe to drink?▼
95% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Bernalillo County?▼
Among communities with a detection the median is 1.30 ppb, 9% of the 15 ppb action level. 7 reported none detected and 1 reported no result.
How many water systems serve Bernalillo County?▼
11 community water systems serve 20 communities here.
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