Why did the Board of Supervisors enact an inspection ordinance?

These invasive mussels were introduced into the United States in 1988 in Lake St. Clair near Detroit, Michigan. The mussels are believed to have been released into the Great Lakes Region from the emptying of ballast water from a Eurasian vessel. So although they have been in the United States for 20 years, the zebra and quagga mussels are new to California. The quagga mussel was first discovered in Lake Mead in January 2007, and quickly spread downstream into Lake Havasu, Lake Mohave, and then into Southern California via the aqueduct system. The zebra mussel was first discovered in San Justo Reservoir, San Benito County in January 2008. Since so many boaters come to Lake County from southern California, the Lake County Board of Supervisors approved an ordinance to protect the water bodies of Lake County from this significant and imminent threat posed by invasive quagga and zebra mussel infestation that can be spread inadvertently through recreational boating.

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1. What types of water vessels require screening?
2. If I launch my boat in a body of water outside of Lake County, must it be re-screened upon return to Lake County?
3. What is the penalty for launching a boat without Mussel Stickers?
4. What do I do if I see someone ready to launch without a Mussel Sticker?
5. How much does it cost to get Mussel Stickers?
6. How long are Mussel Stickers valid?
7. My patio boat has been in the waters of Clear Lake for years, do I need to pull it out of the lake and have it inspected?
8. How do I know if my boat is considered a "Resident Vessel"?
9. How/where do I get Mussel Stickers for my vessel?
10. Can I obtain my Mussel Stickers through the mail?
11. Are any of the screening locations open 24 hours per day?
12. How long will the screening take?
13. What parts of the boat and trailer will be checked during screening?
14. Will I be required to remove panels and floor boards from my boat during the screening?
15. If it is determined my boat must be decontaminated, where do I go?
16. What does decontamination of my boat consist of?
17. How serious is the threat of invasive mussels such as zebra or quagga mussels?
18. Why did the Board of Supervisors enact an inspection ordinance?
19. Have any lakes in California been infested with these mussels?
20. What can I do to help?