Mount Lemmon, AZ - Home Safety Score unavailable
1 ZIP code · 3 water systems · Updated
Data: EPA SDWIS
Mount Lemmon Water: The Quick Version
- Your city's water systems recorded 18 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0057 mg/L.
- Homes built before 1986: 46% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 12.22.
Water Systems Serving Mount Lemmon
Sorted by reported population served, the top 3 of 3 public water systems mapped to Mount Lemmon, AZ appear below, each with its own federal compliance record.
Overview
We track home safety data for 1 ZIP code in Mount Lemmon, Arizona (population ~22), covering 3 community water systems serving approximately 60,738 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
Mount Lemmon water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0057 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
| 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 |
| Lead and Copper Rule | Treatment Technique | 4 | 1 |
| Gross Alpha (excl. radon and uranium) | Radionuclides | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85619 | — | 18 | 0 | Oro Valley Water Utility |
All ZIP Codes in Mount Lemmon
- 85619 - 18 violations recorded for mapped water systems
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.
CDC Health Data for Mount Lemmon
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
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Mount Lemmon
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Mount Lemmon's Housing Stock?
With 46% 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
Lead solder was allowed in new plumbing until the 1986 federal restrictions, which is why older homes in Mount Lemmon deserve a closer look; the median build year is 1981.
A significant portion of Mount Lemmon's housing stock predates 1970, so some homes may have older plumbing materials. Residents in older homes should consider water testing.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Mount Lemmon
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.
Deep Dive Reports
Detailed analysis for Mount Lemmon, AZ