WaterVerge

Is Pinon, South Pinon, Burnt Corn, Blue Gap, AZ Tap Water Safe to Drink?

Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

5K residents served 1 water system PWSID: NN0403004
Overall Score
91.5 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#47 of 292 in Arizona Top 11% nationally
Native American
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
91.5/100
waterverge.com
A 91.5/100

Pinon, South Pinon, Burnt Corn, Blue Gap, AZ — Water Quality Report

Pinon, South Pinon, Burnt Corn, Blue Gap's drinking water received a grade of A (91.5 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 5,195 residents using groundwater.

Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 38 violations on record, including 0 health-based violations. 3 remain unresolved.

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

What to know about Pinon, South Pinon, Burnt Corn, Blue Gap's water

Pinon, South Pinon, Burnt Corn, Blue Gap ranks #47 out of 292 cities in Arizona for water quality, placing it above average in the state.

Pinon, South Pinon, Burnt Corn, Blue Gap 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 →
91.5 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.2/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.0 ppb (90th percentile).
Contaminants
16.2/20
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 Pinon, South Pinon, Burnt Corn, Blue Gap, AZ water safe to drink?

Concerns Identified

Pinon, South Pinon, Burnt Corn, Blue Gap's drinking water has significant quality concerns based on EPA testing data. With a grade of A (91.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 5,195 residents using groundwater (wells).

3
Active Violations
1.0 ppb
Lead (90th %ile)
1 compound
PFAS Detected
6 events
Disaster History

Recent water quality updates for Pinon, South Pinon, Burnt Corn, Blue Gap

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 Pinon, South Pinon, Burnt Corn, Blue Gap's water quality assessment. Grade: A (91.5/100).

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4620). Flood event — may have impacted local water infrastructure.

Violation
3 drinking water violations recorded

Contaminants: Beryllium, Total, Total Haloacetic Acids (HAA5), TTHM.

Violation
1 drinking water violation recorded

Contaminants: Arsenic.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Key contaminant findings

Based on the most recent EPA sampling data for Pinon, South Pinon, Burnt Corn, Blue Gap's water supply.

Lead Within Limits
Detected: 1.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: lithium at 84.3000 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

Pinon, South Pinon, Burnt Corn, Blue Gap's water system has 38 total violations on record, including 0 health-based violations. 3 remain unresolved.

MROther
Most recent violations:
Jan 2020 Beryllium, Total Resolved
Jan 2020 Total Haloacetic Acids (HAA5) Resolved
Jan 2020 TTHM Resolved
Jan 2017 Arsenic Resolved
Apr 2016 Revised Total Coliform Rule Open

Flood & environmental risk

Apache County has experienced 6 federally declared disasters since 1970. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4620
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3241
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA DR-977

Where does Pinon, South Pinon, Burnt Corn, Blue Gap's water come from?

Pinon, South Pinon, Burnt Corn, Blue Gap's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 5,195 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Pinon, South Pinon, Burnt Corn, Blue Gap residents can do

Install a water filter

Recommended: Activated carbon or reverse osmosis filter. This addresses the specific contaminants found in Pinon, South Pinon, Burnt Corn, Blue Gap'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.

Monitor alerts during storms

Pinon, South Pinon, Burnt Corn, Blue Gap's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

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
1.0 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
84.3000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
Lithium
Inorganic
Above state screening
84.3 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

38
Total violations
0
Health-based
3
Active / unresolved
Jan 2020
Most recent violation
Compliance Record

Violations & advisories

38 Total
3 Active
0 Health-based
35 Resolved
Violations by category
Volatile Organic Chemicals
21
Total Coliform Rule
6
Stage 2 Disinfectants and Disinfection Byproducts Rule
3
Radionuclides and Revised Rad Rule
3
Inorganic Chemicals
1
Apr 2016 Active
Revised Total Coliform Rule
Other Violation 0
Oct 2013 Active
Stage 2 Disinfectants and Disinfection Byproducts Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Jan 2020 Resolved
Beryllium, Total
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2020
Jan 2020 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2020
Jan 2020 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2020
Jan 2017 Resolved
Arsenic
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2017
Dec 2012 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2012
Nov 2012 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2012
Jan 2010 Resolved
Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Aug 2006 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2006
Jan 2005 Resolved
Xylenes, Total
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
trans-1,2-Dichloroethylene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
Carbon tetrachloride
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
1,1,2-Trichloroethane
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
Tetrachloroethylene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
CHLOROBENZENE
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
Combined Uranium
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2005 Resolved
Combined Radium (-226 and -228)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Showing 20 of 38 violations
Environmental Risk

Flood & disaster history

6
Declared disasters
Sep 2021
Most recent
Flood
Most common type

Apache County has experienced 6 federally declared disasters since 1970. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2021
SEVERE STORMS AND FLOODING
Flood FEMA #4620
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3241
Jan 1993
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA #977
Oct 1983
SEVERE STORMS & FLOODING
Flood FEMA #691
Mar 1978
SEVERE STORMS & FLOODING
Flood FEMA #551
Sep 1970
HEAVY RAINS & FLASH
Flood FEMA #294

Recommended water filters

Based on contaminants detected in Pinon, South Pinon, Burnt Corn, Blue Gap'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) 1.0 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 84.300 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 2.0 ppb from 1993 (3.0 ppb) to 2025 (1.0 ppb).
Contaminant Rankings

See how Pinon, South Pinon, Burnt Corn, Blue Gap compares by contaminant

Explore where Pinon, South Pinon, Burnt Corn, Blue Gap ranks among all Arizona cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Native American
Population Served
5,195
Water Systems
1
Water Source

Where Pinon, South Pinon, Burnt Corn, Blue Gap's water comes from

Groundwater

Pinon, South Pinon, Burnt Corn, Blue Gap'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 5,195 people through 1 water system.

Infrastructure

Water systems serving Pinon, South Pinon, Burnt Corn, Blue Gap

System Name PWSID Population Source
Pinon-District 4 NTUA NN0403004 5,195 GW
Regional Comparison

How Pinon, South Pinon, Burnt Corn, Blue Gap compares

Full Arizona rankings →

Pinon, South Pinon, Burnt Corn, Blue Gap's score of 91.5/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.

Pinon, South Pinon, Burnt Corn, Blue Gap (this city)
91.5
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
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Frequently asked questions

Is Pinon, South Pinon, Burnt Corn, Blue Gap, AZ tap water safe to drink?

Pinon, South Pinon, Burnt Corn, Blue Gap's water quality earned a grade of A (91.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #47 out of 292 cities tested in Arizona.

What contaminants are in Pinon, South Pinon, Burnt Corn, Blue Gap's water?

Lead was measured at 1.0 ppb (90th percentile). 1 PFAS compound was detected. 38 violations are on record.

How is Pinon, South Pinon, Burnt Corn, Blue Gap'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 Pinon, South Pinon, Burnt Corn, Blue Gap?

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

Where does Pinon, South Pinon, Burnt Corn, Blue Gap's water come from?

Pinon, South Pinon, Burnt Corn, Blue Gap's water is sourced from Groundwater. The city has 1 water system serving approximately 5,195 residents.

Is Pinon, South Pinon, Burnt Corn, Blue Gap's groundwater at risk of contamination?

Pinon, South Pinon, Burnt Corn, Blue Gap 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 38 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 Pinon, South Pinon, Burnt Corn, Blue Gap's water compare to other cities?

Pinon, South Pinon, Burnt Corn, Blue Gap ranks #47 out of 292 cities in Arizona (better than 84% of state cities) and #1645 out of 15744 cities nationally (90th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.