Coarsegold, CA: 9 Health Violations — 63/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
Safe water is the norm across most of Coarsegold, CA — but documented violations push the city to the middle safety tier.
How Coarsegold Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Coarsegold Water
- Your city's water systems recorded 15 violations in the past 5 years.
- Average lead level: 0.0084 mg/L.
- Homes built before 1986: 30% — older plumbing may contain lead solder.
- Estimated remediation: $3,400 per household.
- CDC health risk index: 13.1 — above typical levels.
Who Supplies Your Water in Coarsegold
Throughout Coarsegold, CA, water comes from one of 3 primary utilities out of 4 total systems — independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.
Overview
We track water quality and home safety data for 1 ZIP code in Coarsegold, California, covering 4 community water systems serving approximately 11,144 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 9 health-based violations documented.
Home Safety Score
Average Home Safety Score for Coarsegold: C (63/100)
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
Coarsegold water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0084 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Nickel | Inorganic | 20 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93614 | C | 15 | 9 | Yosemite Spring Park Util Company |
All ZIP Codes in Coarsegold
- 93614 [C] — 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
Updated daily.
Health Outcomes in Coarsegold
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
Top Contaminants in Coarsegold Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Coarsegold
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
Because Coarsegold's housing stock spans a wide range of construction eras, the median build year of 1996 lands in a zone where two distinct risk populations share the same residential market. Homes built before 1986 may have lead-soldered copper plumbing joints — that practice was federally prohibited in 1986 but remained standard until then. The fraction built before 1970 face an additional risk: lead pipes used for service line connections were common before that decade, meaning both the pipe and the solder may be lead-containing in the oldest structures. Residents in mid-century or earlier homes face a different risk environment than neighbors in houses built after 1986, even if they drink from the same utility's supply — and that property-level divergence is what makes the age distribution above more diagnostic than the city-wide median alone.
Most homes in Coarsegold were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Coarsegold Homeowners
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Coarsegold is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Coarsegold are relatively low compared to home values. The $1,900–$5,600 estimated range is a small fraction of median property value. Home values are 52% below the California average.
Lead Exposure Risk for Children in Coarsegold
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.
Locally, Coarsegold's indicators line up: aggregate readings pass under the regulatory benchmark and the pre-rule housing footprint at 30% keeps lead in a background position.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Coarsegold
Across the NFIP's long tracking period, Coarsegold shows 2 claims and 100% of ZIP codes within FEMA-designated flood zones — figures that place it in moderate flood exposure territory. At this level, the water-quality implications of flooding — contaminated wells, stressed treatment intake, distribution backflow — move from theoretical edge cases to genuine periodic risks, particularly during higher-severity events.
Coarsegold has a moderate flood history with 2 FEMA claims. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$3,400</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Coarsegold
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Nickel can reduce the most common contaminant found in Coarsegold's water.
- 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 Coarsegold, CA