CITY REPORT AZ

Tumacacori, AZ - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)

Tumacacori Water: The Quick Version

  • Your city's water systems recorded 11 violations since 2021.
  • Homes built before 1986: 56% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.85.

Water Systems Serving Tumacacori

Counting every public water system linked to Tumacacori, AZ in federal data gives 3. The list below keeps the 3 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 1 ZIP code in Tumacacori, Arizona (population ~162), covering 3 community water systems serving approximately 21,126 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.

Water Sources

Tumacacori water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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

Contaminant Category Violations ZIPs Affected
Revised Total Coliform Rule Microbiological 6 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Arsenic Inorganic 2 1
2,4-D Organic 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
85640 — 11 0 Epcor - Tubac

All ZIP Codes in Tumacacori

  • 85640 - 11 violations recorded for mapped water systems

Data Sources

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

CDC Health Data for Tumacacori

9.4%
Asthma (US: 9.8%)
15.5%
Diabetes (US: 10.4%)
14.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.4% ↓
Diabetes 15.5% ↑
Mental Health 14.7% ↓

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Tumacacori

Revised Total Coliform Rule 6 violations
Microbiological
Indicates possible bacterial contamination
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Tumacacori's Housing Stock?

1989
Median Build Year
56%
Built Before 1986
13%
Built Before 1970
Copper
Likely Pipe Material

With 56% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Some homes in Tumacacori predate the 1986 federal restrictions on lead in new pipe and solder, so a tap test is a reasonable step for older homes; median build year: 1989.

1989
Median Year Built
56%
Pre-1986 (lead solder era; lead paint banned 1978)
13%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (13%) 1970–1986 (43%) Post-1986 (44%)

Over half of homes in Tumacacori were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Tumacacori

56%
Homes Built Before 1986

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.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Historical Flood-Claim Evidence for Tumacacori

13
Total FEMA Flood Claims
$7,026
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Tumacacori contains 13 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $7,026. Among ZIP codes with claim records, 0% 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.

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.

Frequently Asked Questions

How many violations are on record for water systems serving Tumacacori?
EPA records list 11 EPA violations for Tumacacori water systems. These water-system violations are shown for 1 mapped ZIP code.
How many water systems serve Tumacacori?
Our records map 3 water systems to 1 ZIP code in Tumacacori. The related population figure in our data is approximately 162 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Tumacacori, AZ - Home Safety Score unavailable. https://zipcheckup.com/cities/az/tumacacori/
BibTeX
@misc{zipcheckup-cities-az-tumacacori,
  author = {{ZipCheckup}},
  title  = {{Tumacacori, AZ - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/az/tumacacori/}
}

Page version: October 2026.

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