Planned fogging operation maps for Dayton and South Chico areas on 08/04/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned fogging operation maps for Biggs and East Biggs areas on 08/04/2026. The fogging will take place between sunset and 11:00 p.m.

Planned Wide Area Larvicide treatment in the Hamilton City and Chico areas on 08/04/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Gridley and East Gridley areas on 08/03/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 07/30/2026. The fogging will take place between…

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 07/30/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for M&T Levee and M&T South areas on 07/30/2026. The fogging will take place between 4:00am-6:00am. 

Planned aerial mosquito control application map for the West Biggs area on 07/29/2026. The application will take place between sunset and 11:00 p.m.

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 07/29/2026. The fogging will take place between sunset and…

Planned fogging operation maps for Biggs and East Biggs areas on 07/28/2026. The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Dayton and South Chico areas on 07/28/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned Wide Area Larvicide treatment in the Oroville areas on 07/28/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Gridley and East Gridley areas on 07/27/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 07/23/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 07/23/2026. The fogging will take place between…

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 07/22/2026. The fogging will take place between sunset and…

Planned fogging operation maps for Biggs and East Biggs areas on 07/21/2026. The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Dayton and South Chico areas on 07/21/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned Wide Area Larvicide treatment in the Oroville areas on 07/21/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Gridley and East Gridley areas on 07/20/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 07/16/2026. The fogging will take place between…

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 07/16/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for M&T Levee and M&T South areas on 07/16/2026. The fogging will take place between 4:00am-6:00am. 

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 07/15/2026. The fogging will take place between sunset and…

Planned aerial mosquito control application map for the Richvale area on 07/15/2026. The application will take place between sunset and 11:00 p.m.

Planned Wide Area Larvicide treatment in the Chico areas on 07/15/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Dayton and South Chico areas on 07/14/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned fogging operation maps for Biggs and East Biggs areas on 07/14/2026. The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Gridley and East Gridley areas on 07/13/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 07/09/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 07/09/2026. The fogging will take place between…

Planned fogging operation maps for M&T Levee and M&T South areas on 07/09/2026. The fogging will take place between 4:00am-6:00am. 

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 07/08/2026. The fogging will take place between sunset and…

Planned fogging operation maps for Dayton and South Chico areas on 07/07/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned fogging operation maps for Biggs and East Biggs areas on 07/07/2026. The fogging will take place between sunset and 11:00 p.m.

Planned Wide Area Larvicide treatment in the South Oroville and Bird Street area on 7/07/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Gridley and East Gridley areas on 07/06/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 07/02/2026. The fogging will take place between…

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 07/02/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for M&T Levee and M&T South areas on 07/02/2026. The fogging will take place between 4:00am-6:00am. 

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 07/01/2026. The fogging will take place between sunset and…

Planned fogging operation maps for Biggs and East Biggs areas on 06/30/2026. The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Dayton and South Chico areas on 06/30/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned Wide Area Larvicide treatment in the South Feather River  Blvd. and Bird Street area on 6/30/2026. The treatment will take place between 4:…

Planned fogging operation maps for Gridley and East Gridley areas on 06/29/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Hamilton City, Nord, and Meridian Rd. area on 06/25/2026. The fogging will take place between sunset and 11:00 p.m…

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 06/25/2026. The fogging will take place between…

Planned fogging operation maps for M&T Levee and M&T South areas on 06/25/2026. The fogging will take place between 4:00am-6:00am. 

Planned fogging operation maps for South Oroville, Palermo, Honcut, Pacific Heights area on 06/24/2026. The fogging will take place between sunset and…

Planned fogging operation maps for Dayton and South Chico areas on 06/23/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned fogging operation maps for Biggs and East Biggs areas on 06/23/2026. The fogging will take place between sunset and 11:00 p.m.

Planned Wide Area Larvicide treatment in the South Oroville and Bird Street area on 6/23/2026. The treatment will take place between 4:00am-6:00am.

Planned fogging operation maps for Gridley and East Gridley areas on 06/22/2026 The fogging will take place between sunset and 11:00 p.m.

Planned fogging operation maps for Richvale, Nelson, Downtown Oroville,  and Thermalito areas on 06/18/2026. The fogging will take place between…

Planned fogging operation maps for Dayton and South Chico areas on 06/16/2026. The fogging will take place between sunset and 11:00 p.m. 

Planned fogging operation maps for Biggs and East Biggs areas on 06/16/2026. The fogging will take place between sunset and 11:00 p.m.

Planned Wide Area Larvicide treatment in the Chico area on 06/16/2026. The treatment will take place between 4:00am-6:00am.