CITY REPORT CA HEALTH VIOLATIONS: 13

Oceano, CA: 13 Health Violations - Home Safety 78/100

2 ZIP codes · 5 water systems · Updated

ZipCheckup grade for Oceano: B.

This ZIP has a few items worth a quick check.

Your top priority: match a filter's certification to the violations (13 health-based violations). NSF certified filters →

Across Oceano, CA, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.

How Oceano Compares

Oceano78/100
California avg76/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
B · 78
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$538K
Median Home Value
$600
Est. Remediation (0.1% of home value)

Oceano Water: The Quick Version

  • Your city's water systems recorded 37 violations since 2021.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.26.

Water Systems Serving Oceano

Multiple utilities show up for Oceano, CA: 3 are listed here out of 5 tracked federally.

Overview

We track home safety data for 2 ZIP codes in Oceano, California (population ~6,812), covering 5 community water systems serving approximately 30,074 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 13 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Oceano: B (78/100)

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

Oceano water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

2 of 2 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
Nitrate Inorganic 50 1
Selenium Inorganic 14 1
Lead and Copper Rule Revisions Treatment Technique 4 1
Revised Total Coliform Rule Microbiological 4 1
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
93445 B 37 13 Oceano Commission Services District

All ZIP Codes in Oceano

Data Sources

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

CDC Health Data for Oceano

9.9%
Asthma (US: 9.8%)
10%
Diabetes (US: 10.4%)
16.7%
Poor Mental Health (US: 14.8%)

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

Asthma 9.9% ↑
Diabetes 10% ↓
Mental Health 16.7% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Oceano

Nitrate 50 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Blue baby syndrome in infants
Selenium 14 violations
Inorganic · EPA regulatory level for the contaminant named above: 0.05 mg/L
Hair and nail loss, nervous system effects
Lead and Copper Rule Revisions 4 violations
Treatment Technique

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

Oceano: Remediation Cost in Perspective

Because the median home value in Oceano 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.

Median Home Value
$538,200
Est. Remediation
$600
Remediation as % of home value 0.1%

Estimated remediation costs in Oceano can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 27% below the California average.

Historical Flood-Claim Evidence for Oceano

36
Total FEMA Flood Claims
$24,207
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Oceano contains 36 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $24,207. 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 $600 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 Oceano, CA?
Oceano has an average Home Safety Score of 78/100 (Grade B) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 37 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Oceano?
EPA records list 37 EPA violations, including 13 health-based violations for Oceano water systems. These water-system violations are shown for 2 mapped ZIP codes.
How does Oceano compare to California average?
Oceano has an average Home Safety Score of 78/100, which is at or above the California state average of 76/100 for the same model series.
How many water systems serve Oceano?
Our records map 5 water systems to 2 ZIP codes in Oceano. The related population figure in our data is approximately 6,812 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Oceano?
Estimated remediation cost per household in Oceano: $600; modeled range $300 to $1,500. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Oceano, CA: 13 Health Violations - Home Safety 78/100. https://zipcheckup.com/cities/ca/oceano/
BibTeX
@misc{zipcheckup-cities-ca-oceano,
  author = {{ZipCheckup}},
  title  = {{Oceano, CA: 13 Health Violations - Home Safety 78/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/oceano/}
}

Page version: October 2026.

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