Nogales, AZ: PFAS Found in Water - Home Safety 67/100
3 ZIP codes · 3 water systems · Updated
ZipCheckup grade for Nogales: C.
A mixed picture - some signals here are worth your attention.
Nogales, AZ: a C, mid-scale.
How Nogales Compares
Data: EPA SDWIS
Key Facts for Nogales Residents
- Your city's water systems recorded 73 violations since 2021.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.85.
Nogales's Water Providers
Multiple utilities show up for Nogales, AZ: 3 are listed here out of 3 tracked federally.
- C
- C
- C
Overview
We track home safety data for 3 ZIP codes in Nogales, Arizona (population ~21,512), covering 3 community water systems serving approximately 42,291 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.
1 of 1 ZIP code 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 Nogales: C (67/100)
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
Nogales 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
3 of 3 ZIP records with known zones are 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 |
|---|---|---|---|
| Arsenic | Inorganic | 16 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 8 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 1 |
| Public Notice Rule | Reporting | 8 | 1 |
| Nitrate | Inorganic | 6 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85621 | C | 73 | 2 | City of Nogales |
All ZIP Codes in Nogales
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.
Nogales Community Health Snapshot
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
What's in Nogales's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Nogales
In Nogales, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Nogales can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 43% below the Arizona average.
Nogales: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Nogales contains 110 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,985. 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 $300 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.
What You Can Do in Nogales
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. For Arsenic, listed in the water-quality records for Nogales: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Nogales, AZ