Delhi, CA: 14 Health Violations - Home Safety 82/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Delhi: B.
This ZIP has a few items worth a quick check.
Your top priority: match a filter's certification to the violations (14 health-based violations). NSF certified filters →
In ZipCheckup's scoring, Delhi, CA lands in the A-B grade tier.
How Delhi Compares
Data: EPA SDWIS
Delhi Water: The Quick Version
- Your city's water systems recorded 15 violations since 2021.
- Homes built before 1986: 40% - older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.06.
Water Systems Serving Delhi
Federal records list 2 water systems tied to Delhi, CA. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
- B
- B
Overview
We track home safety data for 1 ZIP code in Delhi, California, covering 2 community water systems serving approximately 13,006 people. 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. 14 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Delhi: B (82/100)
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
Delhi 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 3.
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 | 28 | 1 |
| Lead and Copper Rule Revisions | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 95315 | B | 15 | 14 | Delhi Cwd |
All ZIP Codes in Delhi
- 95315 [B] - 15 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 Delhi
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 Delhi
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Delhi'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
Homes on the same street in Delhi can differ: one may keep original pre-1986 plumbing while another has been replumbed, so the 1997 median is only a starting point.
Most homes in Delhi 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.
Delhi: Remediation Cost in Perspective
The remediation-to-value ratio for Delhi sits at the bottom of the scale.
Estimated remediation costs in Delhi can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 54% below the California average.
Protecting Children from Lead in Delhi
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 Delhi, CA