Skip to main content
Request Services
Search:
Search
Toggle navigation
Home
I Want To
Request a District Service
Report Mosquitoes
Report an Unmaintained Pool
Request a Mosquitofish Service
Report a Dead Bird
Request a Presentation/Event Participation
Apply for a Job
Subscribe to a District Publication
Submit Public Records Request
Learn About West Nile Virus
Learn About Invasive Mosquitoes
Contact the District
District
About Us
Services & Programs
Frequently Asked Questions
Staff
Board of Trustees
Board Meetings
Board Meetings
Board Committee Meetings
Transparency
Publications
Annual Reports
Brochures
Mosquito Bytes Newsletter
News/Current Topics
For News Media
Invasive Mosquito Species
Animal and Agency Resources
Mosquito Control
How the District Controls Mosquitoes
Current Control Activities
Frequently Asked Questions
2025 Control History
West Nile Activity
California
2026 Contra Costa Activity
Archived West Nile Virus Activity
Environmental
Integrated Vector Management/Pesticide List
Mosquito Reduction/Best Management Practices
NPDES Documents
Programmatic Environmental Impact Report
Pools & Spas
District Policy
Draining Pools & Spas
Report a Neglected Pool
2026 West Nile Virus Positive Sentinel Chicken Flocks
# Per Flock
Date Bled
Area
×
Search results
Search
Search
