WaterVerge

Is Hotevilla, Hotevilla/Bacavi Community Sc, AZ Tap Water Safe to Drink?

Graded D+, with 19 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: 090400700
Overall Score
51.1 / 100
Violations
19 active
Last Updated
May 2026
Source
Groundwater
#182 of 292 in Arizona Top 82% nationally
Native American
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
51.1/100
waterverge.com
D+ 51.1/100

Hotevilla, Hotevilla/Bacavi Community Sc, AZ — Water Quality Report

Hotevilla, Hotevilla/Bacavi Community Sc's drinking water received a grade of D+ (51.1 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,601 residents using groundwater.

Lead levels were measured at 5.0 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 110 violations on record, including 1 health-based violation. 19 remain unresolved.

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

What to know about Hotevilla, Hotevilla/Bacavi Community Sc's water

Hotevilla, Hotevilla/Bacavi Community Sc ranks #182 out of 292 cities in Arizona for water quality, placing it below average in the state.

Hotevilla, Hotevilla/Bacavi Community Sc 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.

As a small community water system, Hotevilla, Hotevilla/Bacavi Community Sc may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 32 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
51.1 out of 100 Grade D+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
3.1/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
18/20
A
Lead at 5.0 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: Groundwater.
Water Safety

Is Hotevilla, Hotevilla/Bacavi Community Sc, AZ water safe to drink?

Concerns Identified

Hotevilla, Hotevilla/Bacavi Community Sc's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (51.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,601 residents using groundwater (wells).

19
Active Violations
5.0 ppb
Lead (90th %ile)
8 events
Disaster History

Recent water quality updates for Hotevilla, Hotevilla/Bacavi Community Sc

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Hotevilla, Hotevilla/Bacavi Community Sc's water quality assessment. Grade: D+ (51.1/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
4 drinking water violations recorded

Contaminants: LEAD AND COPPER RULE REVISIONS, Chlorine, Revised Total Coliform Rule.

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 Hotevilla, Hotevilla/Bacavi Community Sc's water supply.

Lead Within Limits
Detected: 5.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Hotevilla, Hotevilla/Bacavi Community Sc's water system has 110 total violations on record, including 1 health-based violation. 19 remain unresolved. 32 violations were issued in the last 5 years.

RPTMRMONOtherTT
Most recent violations:
Apr 2025 Revised Total Coliform Rule Open
Feb 2025 Revised Total Coliform Rule Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 Chlorine Resolved
Oct 2024 Revised Total Coliform Rule 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 Hotevilla, Hotevilla/Bacavi Community Sc's water come from?

Hotevilla, Hotevilla/Bacavi Community Sc's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,601 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Hotevilla, Hotevilla/Bacavi Community Sc residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Hotevilla, Hotevilla/Bacavi Community Sc'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.

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Monitor alerts during storms

Hotevilla, Hotevilla/Bacavi Community Sc'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
5.0 ppb
EPA Action Level: 15 ppb · 33% of limit
Safe Level
Compliance Record

Violation summary

110
Total violations
1
Health-based
19
Active / unresolved
Apr 2025
Most recent violation
Compliance Record

Violations & advisories

110 Total
19 Active
1 Health-based
91 Resolved
4 SNC
Violations by category
Synthetic Organic Chemicals
30
Volatile Organic Chemicals
21
Revised Total Coliform Rule
15
Inorganic Chemicals
11
Public Notice Rule and Revised PN Rule
6
Apr 2025 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Feb 2025 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
Public Notice
Other Violation 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jun 2024 Active
Public Notice
Other Violation 0
May 2024 Active
Public Notice
Other Violation 0
Dec 2023 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jul 2023 Active
Public Notice
Other Violation 0
Feb 2023 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Feb 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jan 2023 Active
Public Notice
Other Violation 0
Jul 2021 Active
Consumer Confidence Rule
Other Violation 0
Apr 2021 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Jul 2001 Active
Consumer Confidence Rule
Other Violation 0
Jul 2000 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Oct 2024 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2024
Showing 20 of 110 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) 5.0 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 increased by 3.0 ppb from 2001 (2.0 ppb) to 2025 (5.0 ppb).
Contaminant Rankings

See how Hotevilla, Hotevilla/Bacavi Community Sc compares by contaminant

Explore where Hotevilla, Hotevilla/Bacavi Community Sc ranks among all Arizona cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Native American
Population Served
1,601
Water Systems
1
Water Source

Where Hotevilla, Hotevilla/Bacavi Community Sc's water comes from

Groundwater

Hotevilla, Hotevilla/Bacavi Community Sc'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 1,601 people through 1 water system.

Infrastructure

Water systems serving Hotevilla, Hotevilla/Bacavi Community Sc

System Name PWSID Population Source
Hotevilla Village 090400700 1,601 GW
Regional Comparison

How Hotevilla, Hotevilla/Bacavi Community Sc compares

Full Arizona rankings →

Hotevilla, Hotevilla/Bacavi Community Sc's score of 51.1/100 is above the average of 42/100 among major Arizona cities. It outscores 9 of 10 nearby cities.

Hotevilla, Hotevilla/Bacavi Community Sc (this city)
51.1
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 Hotevilla, Hotevilla/Bacavi Community Sc, AZ tap water safe to drink?

Hotevilla, Hotevilla/Bacavi Community Sc's water quality earned a grade of D+ (51.1/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #182 out of 292 cities tested in Arizona.

What contaminants are in Hotevilla, Hotevilla/Bacavi Community Sc's water?

Lead was measured at 5.0 ppb (90th percentile). 110 violations are on record.

How is Hotevilla, Hotevilla/Bacavi Community Sc'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 Hotevilla, Hotevilla/Bacavi Community Sc?

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

Where does Hotevilla, Hotevilla/Bacavi Community Sc's water come from?

Hotevilla, Hotevilla/Bacavi Community Sc's water is sourced from Groundwater. The city has 1 water system serving approximately 1,601 residents.

What health violations has Hotevilla, Hotevilla/Bacavi Community Sc's water system had?

Hotevilla, Hotevilla/Bacavi Community Sc has 1 health-based violation on record. The most recent violation was recorded in April 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 19 violations remain unresolved.

Is Hotevilla, Hotevilla/Bacavi Community Sc's groundwater at risk of contamination?

Hotevilla, Hotevilla/Bacavi Community Sc 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 110 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 Hotevilla, Hotevilla/Bacavi Community Sc's water compare to other cities?

Hotevilla, Hotevilla/Bacavi Community Sc ranks #182 out of 292 cities in Arizona (better than 38% of state cities) and #12910 out of 15744 cities nationally (18th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Hotevilla, Hotevilla/Bacavi Community Sc's small water system affect quality?

Hotevilla, Hotevilla/Bacavi Community Sc's system serves approximately 1,601 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 110 violations on record.