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Adult Mosquito Spray Schedule; Grandview, Prosser, Richland, and West Richland

Adult Mosquito Spray Map Link:  click here




Byron Ponds and Grandview Sewage Lagoons

Bryon Road; from Hwy 22 in the west to S Ward Gap Road in the east.  Plus some side roads.

Canyon Road from W Robinson Road in the south to about halfway north to Mountainview Road.



Areas along North River Road (County Line to S Griffin).  S Griffin up to and including W Buena Vista Road, plus side roads


Areas along the far western portion of Fowler Street, plus Helena Street, Nevada Avenue, and Short Street.

West Delta

West Richland

Chelan Drive, Ridge Road, 46th avenue (north of Van Giesen Street), eastern portion of Ranch Road, areas around West Richland Wastewater Treatment plant.