OROVILLE — A year after the golden mussel was discovered in the Sacramento-San Joaquin Delta, Oroville waterways appear to remain clear of the invasive species.

The California Department of Water Resources has funneled various resources into maintaining strict cleaning and checking measures on watercraft attempting to enter the department’s bodies of water throughout Oroville.

In May, DWR began its seal system, which at the time received some local backlash for starting the program near Memorial Day weekend. However, since the program started, workers have reportedly caught signs of the mussels in boats, keeping them from the water until they could be properly decontaminated.

DWR opened up a checking and decontamination station at the Thermalito Forebay, where all lakegoers have to chec

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