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The Public Health Laboratory offers tick identification for Lyme disease and bacterial testing for well-water safety upon request. Those who live, work, own property, or visit in Napa County are eligible for laboratory testing.
Drop-off Locations for Water and Tick Testing
Tick Removal/Collection Procedure (PDF)
Tick Testing Requisition Form (PDF)
Fee: Please make checks payable to Napa/Solano Public Health Laboratory.We cannot accept cash or credit cards.
Online Tick Payment
Pay Over the Phone: (707) 784-4410
Tick and Tick-Testing FAQs (PDF)
Lyme Disease Frequently Asked Questions (FAQ)
Lyme Disease General Information Page
Well Water Testing Requisition Form (PDF)
Drinking-Water – Bacteriology Testing Collection Instructions (PDF)
Nitrate Water Testing (PDF)
Water Testing Fee Schedule (PDF)
Water Testing Resources (PDF)