WaterVerge

Is Gisela, AZ Tap Water Safe to Drink?

Graded A-, with 11 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

508 residents served 1 water system PWSID: AZ0404346
Overall Score
89.3 / 100
Violations
11 active
Last Updated
May 2026
Source
Groundwater
#65 of 292 in Arizona Top 19% nationally
Public/Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.3/100
waterverge.com
A- 89.3/100

Gisela, AZ — Water Quality Report

Gisela's drinking water received a grade of A- (89.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 508 residents using groundwater.

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 85 violations on record, including 2 health-based violations. 11 remain unresolved.

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

What to know about Gisela's water

Gisela ranks #65 out of 292 cities in Arizona for water quality, placing it above average in the state.

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

Quality Breakdown

Water quality score

See methodology →
89.3 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
39.3/45
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
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Gisela, AZ water safe to drink?

Concerns Identified

Gisela's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 508 residents using groundwater (wells).

11
Active Violations
0.0 ppb
Lead (90th %ile)
9 events
Disaster History

Recent water quality updates for Gisela

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Gisela's water quality assessment. Grade: A- (89.3/100).

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Disaster
HURRICANE KATRINA EVACUATION

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

Disaster
SEVERE STORMS, TORNADOES & FLOODING

Federal disaster declaration (FEMA DR-977). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Gisela's water system has 85 total violations on record, including 2 health-based violations. 11 remain unresolved. 1 violation was issued in the last 5 years.

MROtherMCL
Most recent violations:
Jan 2022 Chlorine Resolved
Jul 2016 Consumer Confidence Rule Open
Oct 2015 Coliform (TCR) Resolved
Feb 2015 Coliform (TCR) Resolved
Oct 2014 Chlorine Resolved

Flood & environmental risk

Gila County has experienced 9 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.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3241
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA DR-977
SEVERE STORMS & FLOODING
Flood FEMA DR-884

Where does Gisela's water come from?

Gisela's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 508 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Gisela residents can do

Install a water filter

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

Gisela'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

85
Total violations
2
Health-based
11
Active / unresolved
Jan 2022
Most recent violation
Compliance Record

Violations & advisories

85 Total
11 Active
2 Health-based
74 Resolved
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
25
Total Coliform Rule
24
Volatile Organic Chemicals
21
Consumer Confidence Rule
10
Synthetic Organic Chemicals
2
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Jul 2012 Active
Consumer Confidence Rule
Other Violation 0
Oct 2011 Active
Consumer Confidence Rule
Other Violation 0
Jul 2011 Active
Consumer Confidence Rule
Other Violation 0
Jul 2008 Active
Consumer Confidence Rule
Other Violation 0
Jul 2007 Active
Consumer Confidence Rule
Other Violation 0
Jul 2006 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2022 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2022
Oct 2015 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2015
Feb 2015 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2015
Oct 2014 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2014
Nov 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2013
Jan 2011 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2011
Jan 2011 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2011
Feb 2010 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Feb 2010
Jan 2010 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Showing 20 of 85 violations
Environmental Risk

Drought conditions

D2 — severe drought

Gila 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.

4
Weeks at D2+ (current streak)
40.1%
Months in D2+ (last 30y)
4
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

9
Declared disasters
Sep 2005
Most recent
Flood
Most common type

Gila County has experienced 9 federally declared disasters since 1970. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

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
Dec 1990
SEVERE STORMS & FLOODING
Flood FEMA #884
Oct 1983
SEVERE STORMS & FLOODING
Flood FEMA #691
Feb 1980
SEVERE STORMS & FLOODING
Flood FEMA #614

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 6.0 ppb from 2002 (6.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Public/Private
Population Served
508
Water Systems
1
Water Source

Where Gisela's water comes from

Groundwater

Gisela'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 public/private ownership and serves approximately 508 people through 1 water system.

Infrastructure

Water systems serving Gisela

System Name PWSID Population Source
GISELA AZ0404346 508 GW
Regional Comparison

How Gisela compares

Full Arizona rankings →

Gisela's score of 89.3/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.

Gisela (this city)
89.3
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
City Profile

About Gisela, AZ

Wikipedia →

Payson is a town in northern Gila County, Arizona, United States. Due to Payson's location being very near to the geographic center of Arizona, it has been called "The Heart of Arizona." Payson is also considered part of the colloquially defined Northern Arizona region, and the town serves as a gateway to the vast wilderness of the Colorado Plateau. The town is surrounded by the Tonto National Forest, the largest of the six national forests in Arizona—and the ninth largest national forest in the United States.

Economic Profile
$19,909
Median Income
$195,622
Median Home Value
0%
Unemployment
Community
52
Median Age
70
People / sq mi
20.3%
College Educated
100%
Homeownership
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Frequently asked questions

Is Gisela, AZ tap water safe to drink?

Gisela's water quality earned a grade of A- (89.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #65 out of 292 cities tested in Arizona.

What contaminants are in Gisela's water?

Lead was measured at 0.0 ppb (90th percentile). 85 violations are on record.

How is Gisela'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 Gisela?

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

Where does Gisela's water come from?

Gisela's water is sourced from Groundwater. The city has 1 water system serving approximately 508 residents.

What health violations has Gisela's water system had?

Gisela has 2 health-based violations on record. The most recent violation was recorded in January 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.

Is Gisela's groundwater at risk of contamination?

Gisela 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 85 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 Gisela's water compare to other cities?

Gisela ranks #65 out of 292 cities in Arizona (better than 78% of state cities) and #2935 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.

Does Gisela's small water system affect quality?

Gisela's system serves approximately 508 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 85 violations on record.