Receive alerts from your local agencies
...or text your ZIP CODE to 888777 for mobile alerts

Full Notification

City of Napa
Wednesday September 26th, 2018 :: 01:36 p.m. PDT


Napa Sanitation conducting sewer smoke testing in Napa.

From Napa Sanitation District: 
During this week and the week of October 8, NapaSan will be working with V&A Consulting Engineers to conduct smoke testing of sanitary sewer lines in neighborhoods throughout Napa. Please see the map for testing locations. These tests will start no earlier than 8:00 a.m. and will be completed by 5:00 p.m. If your property is within the testing area, a door hanger will be delivered to your property 24-48 hours in advance of the testing.

These types of tests are routinely performed as part of the comprehensive longterm sewer system improvements program. The test involves blowing smoke into a sewer manhole to find places where storm water may be entering the system, as well as to assist in locating breaks and defects that may exist in the sewer lines.

During the test, white smoke may be seen coming from roof vents, up through the ground, building foundations, or manhole covers. The smoke will not enter homes in testing area if it is properly plumbed and vented and the water traps contain water.

The smoke used is not harmful to people, pets, or furnishings. It is non-toxic, non-staining, non-corrosive, odorless, and leaves no residue. Both police and fire departments will be kept informed of the areas in which the testing will take place. Any smoke in the area from the testing should clear within ten minutes.

City of Napa
955 School St
Napa, CA 94559

Emergency: 9-1-1
Non-emergencies: 707-258-7843

Submit an anonymous web tip

Navigate & Discover