Publications & Brochures on Pollution Prevention

Our customers are important partners in Pollution Prevention (P2). By keeping contaminants out of the sewer system, we can all protect the wastewater treatment plant, public health and the Napa River.

For Residents:

Ten Ways to Protect Your Sewer System 

Why Worry About Mercury Thermometers?

No FOG (fats, oil & grease) Down the Drain!

Maintenance Tips for Pools, Fountains and Spas

Diagram of NSD's wastewater treatment plant

For Businesses: Best Management Practices (BMPs)

Dry Cleaners

Food Service Facilities 


Vehicle Repair & Maintenance 

Wineries & Breweries

Water Softeners

Cooling Towers


Dental Amalgam (Recommended by NSD, but not adopted)