Collections Department
707-258-6000 ext 9
Day, night, weekends or whenever, if you’ve got a problem with your drains just call us first.

For any type of drain-related problem, question or emergency, call us before you call the plumber. Our answering service will take your name, address and telephone number, and a member of our crew will call you back or be on your doorstep within 30 minutes.

• Emergencies
• Sewer odors
• Cleaning results
• Sewage problems such as backups or overflows

Our services are free of charge.

Napa Sanitation District (NSD), located in the Napa Valley, provides wastewater collection, treatment and disposal services to the residents and businesses in the City of Napa and surrounding unincorporated areas of Napa County. NSD has been serving the public since it was organized under the California Health and Safety Code in November 1945.
Do you have a sewer backup?  Call Us First
For any type of drain-related problem, question or emergency, call us before you call the plumber. 707-258-6000

Unused medications cluttering your cabinet? Don’t flush them down the drain – take them to the drop-off boxes at Clinic Ole!
Please download the following flyers for details. English | Español

Notice to Napa Sanitation District Customers
On July 1, 2010, the sewer service charge for one Equivalent Dwelling Unit (EDU) will increase. Click here for more information.

Learn about the East Spring Street Upper Lateral Program
Click here for more information.

NSD Toilet and Washing Machine Rebates
Napa Sanitation District toilet retrofit rebate is $100.00. Read the toilet replacement guidelines. PDF

Napa Sanitation District partners with the City of Napa to provide rebates on high-efficiency clothes washers. Click here to see the City’s website for details.

Click here for more information about water conservation on the City of Napa website.

NSD is Helping to Provide Recycled Water 

Updated MST Hydraulic Analysis Available
Hydraulic Analysis Report
Appendices to Report

NBWRAImportant Recycled Water Notice
Final environmental documents available for the North Bay Water Recycling Program in the MST Area. Read more


NSD’s Strategic Plan for Recycled Water
In 2005, Napa Sanitation District (NSD) completed the “Strategic Plan for Recycled Water Use in the Year 2020”. The Plan considers various strategies for recycled water production, storage and usage. NSD has been providing recycled water to vineyards, golf courses, parks, cemeteries and corporate landscaping for many years. This plan takes the recycled water program into the future and considers ways to help provide irrigation water to augment scarce water supplies.

Interested in getting copies of NSD Strategic Plan for Recycled Water and other documents?
Copies of reports, briefs and other documents are provided here

Click here for general information about the District's existing Recycled Water program.

All Pollution Prevention Tips are in PDF* format.
Sending it Down the Drain
Reduce Water Usage In Your Home
NSD Mercury Thermometer Exchange Program
Disposing of Fats Oils & Grease
Environmentally Safe Ways to Clean Your Home

Sewer Use Regulations - Ordinance 67
Exceedence Fee Program - Ordinance 86


The Vactor is used for regular sewer line maintenance. Read up on the different vehicles we use and how they play a part in ensuring the quality of our collection system.

General Application PDF
NSD News
Click here for meeting schedule and documents!

Take a Virtual Tour of our Water Recycling Facility to see our process.

Take the Tour Quiz
How much do you know?
View our Publications

© 2003–2010 NAPA SANITATION DISTRICT