Caldwell, ID: 2 Health Violations - Home Safety 80/100
3 ZIP codes · 8 water systems · Updated
ZipCheckup grade for Caldwell: B.
This ZIP has a few items worth a quick check.
Based on available records, Caldwell, ID holds an A or B ZipCheckup grade.
How Caldwell Compares
Data: EPA SDWIS
What You Should Know About Caldwell Water
- Your city's water systems recorded 21 violations since 2021.
- Average of reported 90th-percentile lead results: 0.002 mg/L.
- Homes built before 1986: 39% - older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.08.
Who Supplies Your Water in Caldwell
Because each listed system has its own federal record, violations at one of the 3 shown below do not apply to the others among the 8 tied to Caldwell, ID.
- B
- B
- B
Overview
We track home safety data for 3 ZIP codes in Caldwell, Idaho (population ~74,959), covering 8 community water systems serving approximately 189,066 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.
2 of 2 ZIP codes 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 Caldwell: B (80/100)
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
Caldwell water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes 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 |
|---|---|---|---|
| Nitrite | Inorganic | 20 | 1 |
| Nitrate | Inorganic | 12 | 1 |
| Chlorine | Disinfectant | 3 | 2 |
| Arsenic | Inorganic | 2 | 1 |
| Oxamyl (Vydate) | Organic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 83607 | B | 21 | 2 | City of Caldwell |
| 83605 | B | 1 | 0 | City of Caldwell |
All ZIP Codes in Caldwell
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.
Health Outcomes in Caldwell
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
Top Contaminants in Caldwell Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Caldwell
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
1996 is the median build year in Caldwell, and the age breakdown below shows how much of the housing predates 1986.
Most homes in Caldwell 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.
Cost Context: What Remediation Means for Caldwell Homeowners
Because the median home value in Caldwell is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.
Estimated remediation costs in Caldwell 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 16% above the Idaho average.
Lead Exposure Risk for Children in Caldwell
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 NFIP Claim Context in Caldwell
Historical NFIP data for Caldwell contains 4 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $17,348. Among ZIP codes with claim records, 50% 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.
Deep Dive Reports
Detailed analysis for Caldwell, ID