Cobb, CA: 2 Health Violations — 89/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
EPA compliance records for Cobb tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within CA.
How Cobb Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Cobb Residents
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.0028 mg/L.
- Homes built before 1986: 78% — older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- CDC health risk index: 14.48 — above typical levels.
Cobb's Water Providers
2 water utilities share the residential service territory in Cobb, CA — out of 2 total systems in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Cobb, California (population ~1,265), covering 2 community water systems serving approximately 4,208 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Cobb: A (89/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Cobb water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0028 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 95426 | A | 4 | 2 | Cobb Area County Water District |
All ZIP Codes in Cobb
- 95426 [A] — 4 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
Updated daily.
Cobb Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Cobb's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cobb Infrastructure Age
With 78% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Federal plumbing rules changed in two stages — lead pipes were phased out before 1970, and lead solder was banned in 1986 — but in Cobb, where the median build year is 1967, most of the housing was already in place before those rules took effect. The materials installed under older standards remain embedded in a substantial portion of the residential inventory today.
Over half of homes in Cobb were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Cobb
Within the Cobb market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Cobb are relatively low compared to home values. The $150–$600 estimated range is a small fraction of median property value. Home values are 53% below the California average.
Cobb: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Households with kids in the home — for whom CDC guidance places particular weight on minimizing exposure — face a specific local picture in Cobb. 78% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Cobb, CA