WaterVerge

Is Shungopavi, AZ Tap Water Safe to Drink?

Graded D+, with 20 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: 090400259
Overall Score
50 / 100
Violations
20 active
Last Updated
May 2026
Source
Purchased ground water
#191 of 292 in Arizona Top 84% nationally
Native American
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
50/100
waterverge.com
D+ 50/100

Shungopavi, AZ — Water Quality Report

Shungopavi's drinking water received a grade of D+ (50 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,756 residents using purchased ground water.

Lead levels were measured at 0.6 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 378 violations on record, including 58 health-based violations. 20 remain unresolved.

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

What to know about Shungopavi's water

Shungopavi ranks #191 out of 292 cities in Arizona for water quality, placing it below average in the state.

Shungopavi purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.

As a small community water system, Shungopavi may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 34 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
50 out of 100 Grade D+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
0/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.6 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Shungopavi, AZ water safe to drink?

Concerns Identified

Shungopavi's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (50/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,756 residents using groundwater (wells).

20
Active Violations
0.6 ppb
Lead (90th %ile)
8 events
Disaster History

Recent water quality updates for Shungopavi

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Shungopavi's water quality assessment. Grade: D+ (50/100).

Violation
2 drinking water violations recorded

Contaminants: Revised Total Coliform Rule, Public Notice.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Arsenic.

Disaster
SEVERE STORMS AND FLOODING

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

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3241). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 0.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Shungopavi's water system has 378 total violations on record, including 58 health-based violations. 20 remain unresolved. 34 violations were issued in the last 5 years.

MONOtherRPTTTMCLMR
Most recent violations:
Aug 2025 Revised Total Coliform Rule Resolved
Aug 2025 Public Notice Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2023 Arsenic Resolved

Flood & environmental risk

Navajo County has experienced 8 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 Shungopavi's water come from?

Shungopavi's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,756 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Shungopavi residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Shungopavi'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

Shungopavi'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
0.6 ppb
EPA Action Level: 15 ppb · 4% of limit
Safe Level
Compliance Record

Violation summary

378
Total violations
58
Health-based
20
Active / unresolved
Aug 2025
Most recent violation
Compliance Record

Violations & advisories

378 Total
20 Active
58 Health-based
358 Resolved
Violations by category
Synthetic Organic Chemicals
98
Volatile Organic Chemicals
84
Arsenic Rule
71
Total Coliform Rule
55
Inorganic Chemicals
22
Aug 2025 Active
Public Notice
Other Violation 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Nov 2021 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jan 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2016 Active
Public Notice
Other Violation 0
Apr 2016 Active
Public Notice
Other Violation 0
Jan 2016 Active
Public Notice
Other Violation 0
Oct 2015 Active
Public Notice
Other Violation 0
Jul 2015 Active
Public Notice
Other Violation 0
Jan 2015 Active
Public Notice
Other Violation 0
Oct 2014 Active
Public Notice
Other Violation 0
Jul 2014 Active
Public Notice
Other Violation 0
Apr 2014 Active
Public Notice
Other Violation 0
Jan 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Jul 2001 Active
Consumer Confidence Rule
Other Violation 0
Jul 1996 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 1996 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Showing 20 of 378 violations
Environmental Risk

Flood & disaster history

8
Declared disasters
Sep 2021
Most recent
Flood
Most common type

Navajo County has experienced 8 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
Feb 1980
SEVERE STORMS & FLOODING
Flood FEMA #614
Dec 1978
SEVERE STORMS & FLOODING
Flood FEMA #570

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.6 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 5.0 ppb from 1999 (5.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Native American
Population Served
1,756
Water Systems
1
Water Source

Where Shungopavi's water comes from

Purchased Groundwater

Shungopavi purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Water quality depends on both the wholesaler's treatment standards and the condition of Shungopavi's local distribution pipes and storage facilities.

Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.

The system is operated by native american ownership and serves approximately 1,756 people through 1 water system.

Infrastructure

Water systems serving Shungopavi

System Name PWSID Population Source
Shungopavi 090400259 1,756 GWP
Regional Comparison

How Shungopavi compares

Full Arizona rankings →

Shungopavi's score of 50/100 is above the average of 42/100 among major Arizona cities. It outscores 9 of 10 nearby cities.

Shungopavi (this city)
50
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 Shungopavi, AZ tap water safe to drink?

Shungopavi's water quality earned a grade of D+ (50/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #191 out of 292 cities tested in Arizona.

What contaminants are in Shungopavi's water?

Lead was measured at 0.6 ppb (90th percentile). 378 violations are on record.

How is Shungopavi'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 Shungopavi?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Shungopavi's water come from?

Shungopavi's water is sourced from Purchased ground water. The city has 1 water system serving approximately 1,756 residents.

What health violations has Shungopavi's water system had?

Shungopavi has 58 health-based violations on record. The most recent violation was recorded in August 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 20 violations remain unresolved.

Is Shungopavi's groundwater at risk of contamination?

Shungopavi 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 378 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 Shungopavi's water compare to other cities?

Shungopavi ranks #191 out of 292 cities in Arizona (better than 35% of state cities) and #13135 out of 15744 cities nationally (17th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Shungopavi's small water system affect quality?

Shungopavi's system serves approximately 1,756 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 378 violations on record.