EPA records for the water systems mapped to 93407 in San Luis Obispo, CA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Print Report

At a Glance

• Water No drinking-water violations in EPA records since 2021.
• Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
• Radon EPA Zone 2 - county-level radon potential, not a home measurement.

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In this report

Frequently Asked Questions

Is the tap water in 93407 safe to drink?

EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 93407 (primary system: San Luis Obispo Water Department), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 93407's water come from?

The recorded water source for San Luis Obispo Water Department, a system mapped to ZIP code 93407, is Surface water. This system serves approximately 47,788 people.

How can I get my water tested in San Luis Obispo?

If San Luis Obispo Water Department supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 93407?

93407 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in San Luis Obispo County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). San Luis Obispo, CA (93407) Home Safety Report. https://zipcheckup.com/report/93407/

BibTeX

@misc{zipcheckup-report-93407,
  author = {{ZipCheckup}},
  title  = {{San Luis Obispo, CA (93407) Home Safety Report}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/93407/}
}

Page version: October 2026.

Recommended Reading

Guides selected based on data for ZIP code 93407

Radon Radon Testing & Mitigation Guide How to test for radon and reduce indoor levels. Home Safety Score Explained How ZipCheckup calculates your home safety score. Understanding Water Quality Reports How to read your annual CCR and what the numbers mean. Home Inspection Water Checklist What to check before buying a home. Best Water Filters by Contaminant Find a certified filter for a specific contaminant you are concerned about. Moving Checklist: Water & Utilities Essential steps for setting up water service in a new home.