Public Notices:

Control Operations Begin:

The Benton County Mosquito Control District begins operations for the control of adult mosquitoes and mosquito larvae during the first week of April annually.  Sumithrin and Naled will be used to control adult mosquitoes (adulticide/fogging) during the late evening or early morning hours. Biological larvicides, including Bti, insect growth regulators and larviciding oil will be used for the control of mosquito larvae. The fogging phase does have potential to cause harm to bees so the input from the public on locations of apiary sites is necessary. To inform or request additional information, please contact the District at 967-2414 or at

Didn’t find what you were after?  You may be interested in one of these pages:

  • Board of Trustees; Meeting Minutes (below on this page)
  • Employment (Seasonal)
  • Small Works Roster; Contract work for the District (below on this page)

Upcoming Board of Trustees Meeting Agenda:

To view the available agenda (agenda is usually available about one week prior to meeting), please click: 

Notice of Special Public Meeting.  The Board of Trustees for Benton County Mosquito Control District will be having a special session meeting.  To view the agenda please click:  June 9, 2021 (meeting will be held via Zoom at 3:00 pm; the link to the Zoom meeting can be found within the June 9, 2021 agenda)

Meeting Minutes:

The Benton County Mosquito Control District conducts routine meetings with the Board of Directors at our headquarters located at 4951 W Van Giesen Street, West Richland, WA 99353.  The meetings are held on the fourth Monday of the month.  Note:  Meetings do NOT occur every month, please see the schedule below for this year’s meeting dates.  Minutes are not official until signed at the following meeting.  They will be posted after signing.

Meetings begin at 7:00 pm.  Meetings require a quorum to be met; if the quorum is not achieved the meeting will be cancelled and either rescheduled or business will be addressed at the next normally scheduled meeting.

2021 Schedule (and Minutes as they become available):

  • January 25th
  • March 22nd
  • April 26th
  • June 28th
  • July 26th
  • August 23rd
  • September 27th
  • October 25th


Past Meetings

2020 Schedule (and Minutes as they become available):

2019 Meeting Minutes:

2018 Meeting Minutes

2017 Meeting Minutes:

2016 Meeting Minutes

2015 Meeting Minutes

2014 Meeting Minutes


Small Works Roster:

Benton County Mosquito Control District #1;

Benton County Mosquito Control District #1 (BCMC) utilizes a Small Works Roster; presently the MRSC Rosters shared online database.  This includes both contractors and consultants listed on the Small Works and Engineering & Architecture rosters.  To continue being eligible to work on small public works projects with BCMC, please register your company with Municipal Research Service Center (MRSC) Rosters at

Any BCMC applications previously submitted cannot be used. You must re-apply.  Questions on the new roster, please contact (206) 625-1300 or

Questions for Benton County Mosquito Control please contact (509) 967-2414.

Thank you.