WaterVerge

Is Sunrise Vistas, AZ Tap Water Safe to Drink?

Graded B+, 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: AZ0408133
Overall Score
81.2 / 100
Violations
19 active
Last Updated
May 2026
Source
Purchased ground water
#112 of 292 in Arizona Top 48% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
81.2/100
waterverge.com
B+ 81.2/100

Sunrise Vistas, AZ — Water Quality Report

Sunrise Vistas's drinking water received a grade of B+ (81.2 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,500 residents using purchased ground water.

Lead levels were measured at 0.0 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 50 violations on record, including 2 health-based violations. 19 remain unresolved.

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

What to know about Sunrise Vistas's water

Sunrise Vistas ranks #112 out of 292 cities in Arizona for water quality, placing it mid-range in the state.

Sunrise Vistas 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, Sunrise Vistas may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
81.2 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
34.2/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Sunrise Vistas, AZ water safe to drink?

Concerns Identified

Sunrise Vistas's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,500 residents using groundwater (wells).

19
Active Violations
0.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Sunrise Vistas

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Sunrise Vistas's water quality assessment. Grade: B+ (81.2/100).

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Violation
1 drinking water violation recorded

Contaminants: 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 Sunrise Vistas's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Sunrise Vistas's water system has 50 total violations on record, including 2 health-based violations. 19 remain unresolved. 6 violations were issued in the last 5 years.

RPTMRMONOtherMCL
Most recent violations:
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Jan 2025 TTHM Resolved
Jan 2025 Total Haloacetic Acids (HAA5) Resolved
Dec 2024 Revised Total Coliform Rule Resolved
Jan 2024 TTHM Resolved

Flood & environmental risk

Coconino 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 Sunrise Vistas's water come from?

Sunrise Vistas's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,500 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Sunrise Vistas residents can do

Install a water filter

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

Sunrise Vistas'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

50
Total violations
2
Health-based
19
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

50 Total
19 Active
2 Health-based
31 Resolved
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
17
Consumer Confidence Rule
11
Total Coliform Rule
9
Stage 2 Disinfectants and Disinfection Byproducts Rule
4
Lead and Copper Rule
4
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2020 Active
Consumer Confidence Rule
Other Violation 0
Jul 2020 Active
Consumer Confidence Rule
Other Violation 0
Jul 2020 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jun 2020 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2014 Active
Consumer Confidence Rule
Other Violation 0
Oct 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Oct 2010 Active
Consumer Confidence Rule
Other Violation 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Oct 2006 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2005 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Oct 2003 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Oct 2002 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2025 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Showing 20 of 50 violations
Environmental Risk

Drought conditions

D2 — severe drought

Mohave County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

1
Weeks at D2+ (current streak)
48.1%
Months in D2+ (last 30y)
1
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

6
Declared disasters
Sep 2021
Most recent
Flood
Most common type

Coconino 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
Dec 1990
SEVERE STORMS & FLOODING
Flood FEMA #884
Mar 1978
SEVERE STORMS & FLOODING
Flood FEMA #551
Sep 1970
HEAVY RAINS & FLASH
Flood FEMA #294

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 decreased by 3.0 ppb from 2004 (3.0 ppb) to 2025 (0.0 ppb).
Contaminant Rankings

See how Sunrise Vistas compares by contaminant

Explore where Sunrise Vistas ranks among all Arizona cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Private
Population Served
1,500
Water Systems
1
Water Source

Where Sunrise Vistas's water comes from

Purchased Groundwater

Sunrise Vistas 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 Sunrise Vistas'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 private ownership and serves approximately 1,500 people through 1 water system.

Infrastructure

Water systems serving Sunrise Vistas

System Name PWSID Population Source
SUNRISE VISTA UTILITIES AZ0408133 1,500 GWP
Regional Comparison

How Sunrise Vistas compares

Full Arizona rankings →

Sunrise Vistas's score of 81.2/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.

Sunrise Vistas (this city)
81.2
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
City Profile

About Sunrise Vistas, AZ

Wikipedia →

Williams is a city in Coconino County, Arizona, United States, located west of Flagstaff. As of the 2020 census, Williams had a population of 3,202. It lies on the routes of Historic Route 66 and Interstate 40. It is also the southern terminus of the Grand Canyon Railway, which takes visitors to Grand Canyon Village.

Economic Profile
$63,141
Median Income
$386,462
Median Home Value
$1,069/mo
Median Rent
5.5%
Unemployment
Community
35.4
Median Age
29
People / sq mi
20.6%
College Educated
70.3%
Homeownership
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Frequently asked questions

Is Sunrise Vistas, AZ tap water safe to drink?

Sunrise Vistas's water quality earned a grade of B+ (81.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #112 out of 292 cities tested in Arizona.

What contaminants are in Sunrise Vistas's water?

Lead was measured at 0.0 ppb (90th percentile). 50 violations are on record.

How is Sunrise Vistas'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 Sunrise Vistas?

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

Where does Sunrise Vistas's water come from?

Sunrise Vistas's water is sourced from Purchased ground water. The city has 1 water system serving approximately 1,500 residents.

What health violations has Sunrise Vistas's water system had?

Sunrise Vistas has 2 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 19 violations remain unresolved.

Is Sunrise Vistas's groundwater at risk of contamination?

Sunrise Vistas 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 50 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 Sunrise Vistas's water compare to other cities?

Sunrise Vistas ranks #112 out of 292 cities in Arizona (better than 62% of state cities) and #7566 out of 15744 cities nationally (52th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Sunrise Vistas's small water system affect quality?

Sunrise Vistas's system serves approximately 1,500 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 50 violations on record.