Department Contact Information (click here)
Office Hours
Monday - Friday
7:30 AM - 5:00 PM
Counter Hours (EH WOW)
General Questions
Monday - Friday
8:00 AM - 12:00 PM
1:00 PM - 4:00 PM
New Well & Septic Applications
Monday - Friday
8:00 AM - 11:30 AM
1:00 PM - 3:30 PM
Phone: 707-253-4417
Fax: 707-253-4545
Location
1195 Third Street, 2nd Floor
Napa, CA 94559
Well and Onsite Wastewater Inspection Requests
707-253-4135
By Appointment Only: Consumer Protection, CUPA, Solid Waste, & WOW Records Research
1195 Third Street,
2nd Floor
Napa, CA 94559
707-253-4417
707-253-4545
Link: Consumer Protection Page