CITY REPORT CA

Mckinleyville, CA: 2 Violations - Home Safety 98/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Mckinleyville: A.

No federal data flags a major home-safety concern for this ZIP.

EPA compliance records for Mckinleyville 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 Mckinleyville Compares

Mckinleyville98/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
A · 98
Avg Safety Score
Zone 3
Radon Risk (Low)
$433K
Median Home Value
$1,200
Est. Remediation (0.3% of home value)

Mckinleyville Water: The Quick Version

  • Your city's water systems recorded 2 violations in the past 5 years.
  • Average lead level: 0.0018 mg/L.
  • Homes built before 1986: 43% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 12.81 - above typical levels.

Water Systems Serving Mckinleyville

Mckinleyville, CA draws its residential water from 3 separate providers among the 3 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.

Overview

We track home safety data for 1 ZIP code in Mckinleyville, California, covering 3 community water systems serving approximately 18,792 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. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Mckinleyville: A (98/100)

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

Mckinleyville water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0018 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
Stage 1 DBP Rule Treatment Technique 2 1
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
95519 A 2 0 Humboldt Bay Mwd

All ZIP Codes in Mckinleyville

  • 95519 [A] - 2 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Mckinleyville

11%
Asthma (US: 9.8%)
11.4%
Diabetes (US: 10.4%)
19.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11% ↑
Diabetes 11.4% ↑
Mental Health 19.7% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Mckinleyville

Stage 1 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Mckinleyville's Housing Stock?

1998
Median Build Year
43%
Built Before 1986
15%
Built Before 1970
Copper
Likely Pipe Material

With 43% 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

Prohibited from residential plumbing since 1986, lead solder divides Mckinleyville's housing stock along a timeline that the median build year of 1998 straddles. A meaningful share of homes predates the ban - a configuration that places moderate aggregate pressure on plumbing-related lead risk, distributed unevenly across neighborhoods.

1998
Median Year Built
43%
Pre-1986 (Lead Paint Risk)
15%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (15%) 1970–1986 (28%) Post-1986 (57%)

Most homes in Mckinleyville 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.

Mckinleyville: Remediation Cost in Perspective

In Mckinleyville, documented water and safety issues can be addressed without making a meaningful dent in home equity - the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.

Median Home Value
$432,600
Est. Remediation
$1,200
Remediation as % of home value 0.3%

Remediation costs in Mckinleyville are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 41% below the California average.

Protecting Children from Lead in Mckinleyville

43%
Homes Built Before 1986
0.0018
mg/L Avg Lead (Limit: 0.015)

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.

Practically, the structural drivers in Mckinleyville - 43% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark - make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Mckinleyville

11
Total FEMA Flood Claims
$9,210
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Mckinleyville contains 11 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,210. 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>$1,200</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.

Frequently Asked Questions

What does the Home Safety Score mean for Mckinleyville, CA?
Mckinleyville has an average Home Safety Score of 98/100 (Grade A) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 2 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Mckinleyville have?
Mckinleyville water systems have a total of 2 EPA violations. Violations are tracked across 1 ZIP code.
Does Mckinleyville water have lead?
The average 90th-percentile lead level in Mckinleyville is 0.0018 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Mckinleyville compare to California average?
Mckinleyville has an average Home Safety Score of 98/100, which is above the California state average of 76/100 for the same model series.
How many water systems serve Mckinleyville?
Mckinleyville is served by 3 public water systems across 1 ZIP code, serving approximately 18,792 people.
How much does it cost to fix water issues in Mckinleyville?
Estimated remediation costs in Mckinleyville average $1,200 per household, ranging from $800 to $1,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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How to cite this page

APA ZipCheckup. (2026). Mckinleyville, CA: 2 Violations - Home Safety 98/100. https://zipcheckup.com/cities/ca/mckinleyville/
BibTeX
@misc{zipcheckup-cities-ca-mckinleyville,
  author = {{ZipCheckup}},
  title  = {{Mckinleyville, CA: 2 Violations - Home Safety 98/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/mckinleyville/}
}

Page version: August 2026.

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