If you're checking Apache Junction, AZ tap water safety, the short answer is: average - violations are present in parts of the city and specifics depend on which water system serves your address.

Data: EPA SDWIS

Overview

We track home safety data for 6 ZIP codes in Apache Junction, Arizona (population ~54,919), covering 3 community water systems serving approximately 543,665 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 6 ZIP codes.

2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Apache Junction: C (58/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Apache Junction water systems draw from: Groundwater, Surface water.

Lead & Copper

• Average lead level (90th percentile): 0.0025 mg/L (EPA action level: 0.015 mg/L)
• 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

• Zone 1 (High): 0 ZIP codes
• Zone 2 (Moderate): 6 ZIP codes
• Zone 3 (Low): 0 ZIP codes

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

Top Contaminants

Areas with Most Violations

All ZIP Codes in Apache Junction

• 85117
• 85119 [C] - 97 violations ⚠
• 85120 [C] - 123 violations ⚠
• 85178
• 85218
• 85220

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Radon: EPA Map of Radon Zones

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Apache Junction: Remediation Cost in Perspective

While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Apache Junction is notably favorable - the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.

Median Home Value

$259,100

Est. Remediation

$2,017

Remediation as % of home value 0.8%

Remediation costs in Apache Junction are relatively low compared to home values. The $1,000–$3,800 estimated range is a small fraction of median property value. Home values are 15% below the Arizona average.

Protecting Children from Lead in Apache Junction

0.0025

mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Lead risk in Apache Junction appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Apache Junction

38

Total FEMA Flood Claims

$57,538

Avg Reported Sum With Payment Data

100%

A/V Share of Claim-Record ZIPs

Historical NFIP data for Apache Junction contains 38 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $57,538. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,017</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.