Current Noncompliance AZ 1 HEALTH VIOLATION

City of Prescott

EPA ID: AZ0413045 · 42,217 people served · 8 ZIP codes

ZipCheckup's reading of EPA SDWIS for City of Prescott (AZ0413045): 1 unresolved EPA violation on record. Per EPA records, City of Prescott: 1 unresolved violation, 42,217 people in service area.

Data: EPA SDWIS

D · 54
Avg Safety Score
42,217
People Served
8
ZIP Codes Served
38
Violations (5yr)
Groundwater
Water Source
Zone 2
Radon Risk · Moderate
30
Contaminants Flagged
$502K
Median Home Value in Service Area

Service Area Map

Coverage area for City of Prescott Source: EPA SDWIS service area boundaries.

Service area boundary - Grade D

Service Area Demographics

$70,375
Median Household Income
127,337
Service Area Population
38%
Disadvantaged Population
60th
Poverty Percentile
60th
Energy Burden Percentile
33%
Pre-1986 Housing

The City of Prescott serves a community with a median household income of $70,375 and an estimated 127,337 residents across its service area.

Environmental Justice Note: 38% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

💧 Where Does Your Water Come From?

Groundwater

City of Prescott's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Elevated Risk
Source Contamination Risk
60th
Wastewater Discharge Proximity
40th
Superfund Site Proximity

Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.

Infrastructure Risk

33 yr
Avg Pipe Age
Copper
Pipe Material
36 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 48% of expected lifespan used End of life

Detected Contaminants

How City of Prescott compares to EPA limits

PFOA 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.000004 mg/L
PFNA 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.00001 mg/L
Chlorodibromomethane 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.002 mg/L
Liver cancer, brain cancer (known carcinogen)
Bromate 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.01 mg/L
Monochloroacetic Acid 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.06 mg/L

What This Means For You

PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.

PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.

Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.

Bromate at 1 mg/L exceeds the EPA maximum of 0.01 mg/L.

Monochloroacetic Acid at 1 mg/L exceeds the EPA maximum of 0.06 mg/L.

PFAS Detected in Service Area

PFAS ("forever chemicals") have been detected in water serving this system's area. 28 detections recorded. 8 exceed federal EPA limits (4 ppt for PFOA/PFOS). 4 exceed state limits.

State limits: PFOA: 0.01 ppt, PFOS: 0.01 ppt
Health concern: PFAS are linked to cancer, thyroid disease, immune suppression, and developmental effects. They do not break down naturally.
Recommended filter: Reverse osmosis (RO) or activated carbon filters certified for PFAS removal. Find the right filter →

Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.

Find a certified water filter →

Comparable Water Systems

Similar-sized systems in Arizona

Oro Valley Water Utility
42,316 people
C 0 violations
C 2 violations
City of El Mirage
39,884 people
C 18 violations
City of San Luis
39,705 people
B 9 violations
Kingman Municipal Water
45,000 people
B 7 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Radon Mitigation Water Filtration PFAS Treatment
Flood Insurance $975
Radon Mitigation $400
Water Filtration $375
PFAS Treatment $300
Total Estimated Cost $2,050

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$7,665
10 years
$15,330
20 years
$30,660

Compare: Estimated remediation cost is $2,050 (one-time) vs. $15,330 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

City of Prescott (EPA ID: AZ0413045) is a community water system in Arizona that serves approximately 42,217 people from groundwater sources.

This system provides water to 8 ZIP codes across 4 communities.

ZIP-Area Home Safety Context: D (54/100)

This is the average Home Safety Score for 5 of 8 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

1 current noncompliance record in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 37 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
July 2, 2025 Stage 2 DBP Rule Non-health-based Unaddressed (current)
April 1, 2025 Barium Non-health-based Resolved
April 1, 2025 Barium Non-health-based Resolved
March 25, 2025 Lead and Copper Rule Non-health-based Resolved
January 3, 2025 Contaminant 0700 Health-based Resolved
April 1, 2024 Barium Non-health-based Resolved
April 1, 2024 Barium Non-health-based Resolved
July 1, 2022 Gross Alpha Non-health-based Resolved
July 1, 2022 Combined Radium Non-health-based Resolved
July 1, 2022 Gross Beta Non-health-based Resolved
July 1, 2022 Radium-226 Non-health-based Resolved
July 1, 2022 Radium-228 Non-health-based Resolved
July 1, 2022 PFOA Non-health-based Resolved
July 1, 2022 PFNA Non-health-based Resolved
July 1, 2022 Monochloroacetic Acid Non-health-based Resolved
July 1, 2022 Dichloroacetic Acid Non-health-based Resolved
July 1, 2022 Bromodichloromethane Non-health-based Resolved
July 1, 2022 Dibromochloromethane Non-health-based Resolved
July 1, 2022 Bromoform Non-health-based Resolved
July 1, 2022 Chlorodibromomethane Non-health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Barium Inorganic 4 No
Gross Alpha Radionuclides 2 No
Combined Radium Radionuclides 2 No
Gross Beta Radionuclides 2 No
Radium-226 Radionuclides 2 No
Radium-228 Radionuclides 2 No
PFOA PFAS 1 No
PFNA PFAS 1 No
Monochloroacetic Acid Disinfection Byproducts 1 No
Dichloroacetic Acid Disinfection Byproducts 1 No
Bromodichloromethane Disinfection Byproducts 1 No
Dibromochloromethane Disinfection Byproducts 1 No
Bromoform Disinfection Byproducts 1 No
Chlorodibromomethane Disinfection Byproducts 1 No
Trichloroacetic Acid Disinfection Byproducts 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0 mg/L No N/A

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by AZ or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Prescott (AZ0413045) on EPA.gov.

Frequently Asked Questions

Is City of Prescott water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does City of Prescott serve?

City of Prescott serves approximately 42,217 people across 8 ZIP codes in Arizona.

Where does City of Prescott get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: Above Current MCL

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.

Samples collected
232
Detections
22
Latest sample
11/7/2023
Highest analyte
PFPeA: 14.9 ppt
Analyte Max detected Current MCL Status
PFOA 11.4 ppt 10 ppt Above current MCL
PFPeA 14.9 ppt
PFHxA 12.6 ppt
PFOS 8.7 ppt 10 ppt Above 2029 federal MCL
PFBS 7.5 ppt
PFHxS 6.5 ppt 10 ppt Below current MCL

Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →

Understand PFAS health context and filtration →

How Water Systems Appear in Rankings

Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.

Frequently Asked Questions

Is water from City of Prescott safe to drink?
City of Prescott has a D safety grade based on 38 recorded violations. Some contaminants may exceed EPA limits - independent testing is recommended.
What contaminants are in City of Prescott's water?
Detected contaminants include PFOA, PFNA, Chlorodibromomethane, Bromate. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter?
Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
How many people does City of Prescott serve?
City of Prescott serves approximately 42,217 people with drinking water across 8 ZIP codes.
What is City of Prescott's water source?
City of Prescott draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
What is the demographic profile of City of Prescott's service area?
The City of Prescott service area has a median household income of $70,375. EPA EJScreen data classifies 38% of the population as disadvantaged, which may indicate greater vulnerability to environmental health risks.
Where does City of Prescott get its water?
City of Prescott's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on the exported violation history and environmental factors, the source contamination risk is classified as elevated.

How to cite this page

APA ZipCheckup. (n.d.). City of Prescott (AZ): 1 Health Violation. https://zipcheckup.com/water-system/az0413045/
BibTeX
@misc{zipcheckup-water-system-az0413045,
  author = {{ZipCheckup}},
  title  = {{City of Prescott (AZ): 1 Health Violation}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/az0413045/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report →

3

Contact your utility

City of Prescott (EPA ID: AZ0413045) - request the latest Consumer Confidence Report or ask about specific contaminants.

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