Clearlake, CA: 4 Health Violations - Home Safety 97/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Clearlake: A.
No federal data flags a major home-safety concern for this ZIP.
Looking at federal monitoring data for Clearlake, CA: the city clears benchmarks set under the Safe Drinking Water Act with room to spare - recorded exceedances are rare, and the systems serving local households have not triggered any pattern of repeat deficiencies in recent cycles.
How Clearlake Compares
Data: EPA SDWIS
Clearlake Water: The Quick Version
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.0046 mg/L.
- Homes built before 1986: 68% - older plumbing may contain lead solder.
- Estimated remediation: $2,000 per household.
- CDC health risk index: 14.48 - above typical levels.
Water Systems Serving Clearlake
In Clearlake, CA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 5 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
- A
- A
- A
Overview
We track home safety data for 1 ZIP code in Clearlake, California, covering 5 community water systems serving approximately 17,101 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. 4 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Clearlake: A (97/100)
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
Clearlake water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0046 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 95422 | A | 4 | 4 | Highlands Mutual Water Company |
All ZIP Codes in Clearlake
- 95422 [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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Clearlake
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
Key Contaminants Detected in Clearlake
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Clearlake's Housing Stock?
With 68% 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
What does a median build year of 1974 mean for water safety in Clearlake? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.
Over half of homes in Clearlake 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.
Clearlake: Remediation Cost in Perspective
How much of a Clearlake home's value does documented remediation represent? A small fraction - the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.
Remediation costs in Clearlake are relatively low compared to home values. The $1,250–$3,200 estimated range is a small fraction of median property value. Home values are 72% below the California average.
Protecting Children from Lead in Clearlake
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 68% of the Clearlake inventory was built in that earlier era - a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Clearlake
Historical NFIP data for Clearlake contains 156 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,176. Among ZIP codes with claim records, 100% 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 <strong>$2,000</strong> 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 Clearlake, CA