Looking at federal compliance records for Fort Mcdowell, AZ: the city earns a grade in the top two bands here, and each serving system's violation history can be reviewed individually for what lies behind it.

Data: EPA SDWIS

Overview

We track home safety data for 1 ZIP code in Fort Mcdowell, Arizona (population ~1,329), covering 1 community water system serving approximately 241,361 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Fort Mcdowell: B (74/100)

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

Fort Mcdowell water systems draw from: Surface water.

Lead & Copper

• Average of reported 90th-percentile lead results: 0.0023 mg/L (EPA action level: 0.015 mg/L)
• 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Areas with Most Violations

All ZIP Codes in Fort Mcdowell

• 85264 [B] - 5 violations

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.

Housing Age Profile

Housing age is a rough starting point, not an answer. Fort Mcdowell has a median build year of 1993, but any single home may be older or newer than that figure, may have had plumbing replaced, or may still have original fixtures. Lead can also come from a service line or older brass fittings, so a water test or a check of the utility's service line inventory says more about one address than the citywide build year does.

1993

Median Year Built

20%

Pre-1986 (lead solder era; lead paint banned 1978)

10%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (10%) 1970–1986 (10%) Post-1986 (80%)

Most homes in Fort Mcdowell were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Fort Mcdowell

20%

Homes Built Before 1986

0.0023

mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Averaged across Fort Mcdowell ZIP codes, the 90th-percentile lead results reported by water systems come to less than 10 parts per billion. That is an area summary rather than a reading from any home, and EPA's health goal for lead in drinking water is zero; about 20% of local housing predates 1986.

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