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New Boat Inspection and Quarantine Regulations at Folsom Lake to Combat Invasive Golden Mussels

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Published on April 13, 2025
New Boat Inspection and Quarantine Regulations at Folsom Lake to Combat Invasive Golden MusselsSource: Wikipedia/UncleVinny, CC BY 3.0, via Wikimedia Commons

Starting tomorrow, boaters visiting Folsom Lake will be subject to new regulations designed to prevent the spread of invasive golden mussels. Under guidelines issued by California State Parks, all motorized or trailered boats must undergo a mandatory inspection and be sealed upon arrival. Once sealed, the boat must remain in quarantine for 30 days. If the seal is broken—intentionally or otherwise—the quarantine process must be restarted.

These regulations apply only to motorized and trailered boats. Non-motorized watercraft such as kayaks and paddleboards are exempt, allowing for immediate access to the water without inspection or quarantine. The policy aims to limit the risk of invasive species entering the lake through contaminated vessels.

Golden mussels pose a serious threat to aquatic ecosystems and infrastructure. According to the City of Folsom’s official website, “Golden mussels can significantly damage aquatic ecosystems, water infrastructure, and recreation areas.” The new rules are part of ongoing efforts to preserve the ecological health and recreational value of Folsom Lake.