There's more information coming out about the contamination discovered recently at Kershaw Park Beach.

Canandaigua city officials say the latest testing on a sticky, black substance that showed up at the popular beach is not any kind of coal tar or PCB-laden material as some had feared, but is likely very old used crankcase oil that dates back to vehicles from the 1920s and 30s.

Canandaigua will still need to come up with a plan to clean up that area, but City Manager Kay James tells WHAM News that officials believe the area of contamination is contained to that section of the beach...

"Weare quite confident that there is no impact at all on the water in the lake, either as a source for drinking or swimming or any other purpose that you want to use the water for, fishing, the water is fine."

Canandaigua officials said last week that the beach at Kershaw Park will remain closed through the rest of this season. James says that is still the plan, and she says they do expect to have a cleanup plan in place soon and reopen the beach on Memorial Day of next year.