WaterVerge

Is Isleta, NM Tap Water Safe to Drink?

Graded A-, with 10 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

14K residents served 3 water systems PWSID: 063501109
Overall Score
89.2 / 100
Violations
10 active
Last Updated
May 2026
Source
Groundwater
#7 of 163 in New Mexico Top 19% nationally
Native American
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.2/100
waterverge.com
A- 89.2/100

Isleta, NM — Water Quality Report

Isleta's drinking water received a grade of A- (89.2 out of 100), indicating good water quality. The city's 3 water systems serve approximately 13,959 residents using groundwater.

Lead levels were measured at 1.1 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 54 violations on record, including 7 health-based violations. 10 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Isleta's water

Isleta ranks #7 out of 163 cities in New Mexico for water quality, placing it one of the best in the state.

Isleta relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

Quality Breakdown

Water quality score

See methodology →
89.2 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
39.4/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.1 ppb (90th percentile).
Contaminants
16.8/20
B
1 PFAS compound detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Isleta, NM water safe to drink?

Concerns Identified

Isleta's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 13,959 residents using groundwater (wells).

10
Active Violations
1.1 ppb
Lead (90th %ile)
1 compound
PFAS Detected
1 event
Disaster History

Recent water quality updates for Isleta

A timeline of significant water quality events, violations, and data updates.

PFAS
1 PFAS "forever chemical" compound detected

Detected at levels within current EPA limits. PFAS persist indefinitely in the environment.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Isleta's water quality assessment. Grade: A- (89.2/100).

Violation
2 drinking water violations recorded

2 health-based. Contaminants: Groundwater Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Groundwater Rule.

Violation
1 drinking water violation recorded

Contaminants: Arsenic.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3229). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Isleta's water supply.

Lead Within Limits
Detected: 1.1 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: lithium at 92.8000 µg/L Limit: 0.004 µg/L (EPA MCL)

Detected but within current EPA limits. PFAS do not break down in the environment and can accumulate in the body over time. An activated carbon filter can reduce exposure.

Violation history

Isleta's water system has 54 total violations on record, including 7 health-based violations. 10 remain unresolved.

TTMRMCLOther
Most recent violations:
Dec 2016 Groundwater Rule Open
Dec 2016 Groundwater Rule Open
May 2013 Groundwater Rule Open
Jan 2010 Arsenic Resolved
Sep 2009 Coliform (TCR) Resolved

Flood & environmental risk

Bernalillo County has experienced 1 federally declared disaster since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3229

Where does Isleta's water come from?

Isleta's drinking water comes from groundwater (wells), supplied by 3 water systems serving approximately 13,959 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Isleta residents can do

Install a water filter

Recommended: Activated carbon or reverse osmosis filter. This addresses the specific contaminants found in Isleta's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.1 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
92.8000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
Lithium
Inorganic
Above state screening
92.8 µg/L
State screening level: 60 µg/L · +20% over limit
DetectedNo federal MCLUCMR 5 Data (2023–2025)
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

54
Total violations
7
Health-based
10
Active / unresolved
Dec 2016
Most recent violation
Compliance Record

Violations & advisories

54 Total
10 Active
7 Health-based
44 Resolved
Violations by category
Total Coliform Rule
37
Consumer Confidence Rule
12
Ground Water Rule
3
Arsenic Rule
1
Dec 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Dec 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
May 2013 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2010 Resolved
Arsenic
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2010
Sep 2009 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2009
Aug 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2008
Sep 2005 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2005
Oct 2001 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 2001
Oct 2001 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2001
Jul 2001 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2001
Jul 2000 Resolved
Consumer Confidence Rule
Other Violation Resolved Jul 2000
Jul 2000 Resolved
Consumer Confidence Rule
Other Violation Resolved Jul 2000
Jul 2000 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2000
Showing 20 of 54 violations
Industrial pollution

Top industrial polluters within 10 miles of Isleta

Industrial polluters nearby

Reported releases to surface water by facilities near Isleta, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
WALL COLMONOY CORP
Primary Metals · WALL COLMONOY CORP
LOS LUNAS, NM87031
7.0 mi
PVS DX INC.
Chemical Wholesalers · PRESSURE VESSEL SERVICES INC
ALBUQUERQUE, NM87105
9.1 mi
E-CHEM LLC
Chemicals · NA
ALBUQUERQUE, NM87105
8.6 mi
MATERION ADVANCED MATERIALS TECHNOLOGIES & SERVICES MESA DEL
Miscellaneous Manufacturing · MATERION CORP
ALBUQUERQUE, NM87106
7.7 mi
SENERGY PETROLEUM LLC - ALBUQUERQUE BULK PLANT
Petroleum Bulk Terminals · BRAD HALL ENERGY HOLDINGS LLC
ALBUQUERQUE, NM87105
8.6 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Isleta

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Flood & disaster history

1
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Bernalillo County has experienced 1 federally declared disaster since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3229

Recommended water filters

Based on contaminants detected in Isleta's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
1 PFAS compound detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.1 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium 92.800 HI µg/L PFAS Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 2.9 ppb from 1994 (4.0 ppb) to 2023 (1.1 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Native American
Population Served
13,959
Water Systems
3
Water Source

Where Isleta's water comes from

Groundwater

Isleta's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by native american ownership and serves approximately 13,959 people through 3 water systems.

Infrastructure

Water systems serving Isleta

System Name PWSID Population Source
Isleta Eastside 063501109 9,442 GW
Isleta Shea-whiff 063503109 4,403 GW
Isleta Los Charcos 063502084 114 GW
Regional Comparison

How Isleta compares

Full New Mexico rankings →

Isleta's score of 89.2/100 is above the average of 44/100 among major New Mexico cities. It outscores 10 of 10 nearby cities.

Isleta (this city)
89.2
Las Cruces
40.1
Santa Fe
35.7
Rio Rancho
83.8
Roswell
45.8
New Mexico avg
44
Service Area

ZIP codes served by Isleta

The water systems serving Isleta cover 1 ZIP code. Select any ZIP to see which water systems serve that area.

City Profile

About Isleta, NM

Wikipedia →

Isleta Village Proper or Isleta is a census-designated place (CDP) in Bernalillo County, New Mexico, United States. The population was 491 at the 2010 census. It is part of the Albuquerque Metropolitan Statistical Area.

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Frequently asked questions

Is Isleta, NM tap water safe to drink?

Isleta's water quality earned a grade of A- (89.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #7 out of 163 cities tested in New Mexico.

What contaminants are in Isleta's water?

Lead was measured at 1.1 ppb (90th percentile). 1 PFAS compound was detected. 54 violations are on record.

How is Isleta's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Isleta?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Isleta's water come from?

Isleta's water is sourced from Groundwater. The city has 3 water systems serving approximately 13,959 residents.

What health violations has Isleta's water system had?

Isleta has 7 health-based violations on record. The most recent violation was recorded in December 2016. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 10 violations remain unresolved.

Is Isleta's groundwater at risk of contamination?

Isleta uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 54 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Isleta's water compare to other cities?

Isleta ranks #7 out of 163 cities in New Mexico (better than 96% of state cities) and #2953 out of 15744 cities nationally (81th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.