Chandler, AZ: PFAS Found in Water - Home Safety 58/100
8 ZIP codes · 6 water systems · Updated
ZipCheckup grade for Chandler: C.
A mixed picture - some signals here are worth your attention.
Your top priority: match a filter's certification to the violations (6 health-based violations). NSF certified filters →
Available records for Chandler give it a middle-tier grade in AZ; water systems can differ, so check the one that serves your home.
How Chandler Compares
Data: EPA SDWIS
Water Quality Map: Chandler, AZ
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of Home Safety grades across Chandler.
Chandler Water: The Quick Version
- Your city's water systems recorded 292 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0041 mg/L.
- Homes built before 1986: 22% - older plumbing may contain lead solder.
- Estimated remediation: $650 per household.
- Health risk index (ZipCheckup composite of CDC data): 11.41.
Water Systems Serving Chandler
When a city is linked to 6 water systems, as Chandler, AZ is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.
- C
- C
- C
Overview
We track home safety data for 8 ZIP codes in Chandler, Arizona (population ~297,943), covering 6 community water systems serving approximately 515,256 people region-wide. The EPA snapshots used for this build directly map water systems to 6 of 8 ZIP codes.
6 of 6 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 6 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Chandler: 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
Chandler water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0041 mg/L (EPA action level: 0.015 mg/L)
- 0 of 6 ZIP codes with known status exceed the EPA lead action level
Radon Risk
8 of 8 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 |
|---|---|---|---|
| Nitrate | Inorganic | 45 | 6 |
| Arsenic | Inorganic | 42 | 6 |
| Revised Total Coliform Rule | Microbiological | 28 | 4 |
| 1,2,4-Trichlorobenzene | Organic | 25 | 6 |
| cis-1,2-Dichloroethylene | Organic | 25 | 6 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85249 | C | 269 | 4 | City of Chandler |
| 85248 | C | 94 | 2 | City of Chandler |
| 85225 | C | 83 | 0 | City of Chandler |
| 85286 | C | 83 | 0 | City of Chandler |
| 85224 | C | 77 | 0 | City of Chandler |
| 85226 | C | 77 | 0 | City of Chandler |
All ZIP Codes in Chandler
- 85224 [C] - 77 violations
- 85225 [C] - 83 violations
- 85226 [C] - 77 violations
- 85244
- 85246
- 85248 [C] - 94 violations ⚠
- 85249 [C] - 269 violations ⚠
- 85286 [C] - 83 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.
CDC Health Data for Chandler
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 Chandler
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Chandler's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Remodels change the picture: a 1996 median in Chandler says nothing about pipes swapped out or repaired since construction.
Most homes in Chandler 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.
Chandler: Remediation Cost in Perspective
Compared with typical property prices, the remediation estimate for Chandler is small in percentage terms - at or under one percent.
Estimated remediation costs in Chandler can be compared with local home values. The $375–$1,150 estimated range can be set against the median property value; actual costs vary by home. Home values are 60% above the Arizona average.
Protecting Children from Lead in Chandler
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.
While lead results averaged over Chandler ZIP codes come in under 10 micrograms per liter, that figure combines many 90th-percentile values and cannot describe one building, including the 22% of housing that predates 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Chandler
Historical NFIP data for Chandler contains 16 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $51,842. Among ZIP codes with claim records, 20% 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 $650 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 Chandler
- 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 Nitrate, listed in the water-quality records for Chandler: 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 Chandler, AZ