I've camped there on the 4th its usually fairly quiet. There's always somebody that sets off a couple fireworks but not to the point of being annoying. I don't think fireworks are allowed in the park.
Ontario County is one of the counties in NYS where fireworks are permitted. There is an application for permit for fireworks for Canandaigua. The surrounding counties, like Livingston for instance, has the same law. It might be a tad noisy around the area. However? I can only give you what I know. Hopefully it helps.
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