Creek. The main source of pollution occurs from a military site upstream, now considered a superfund site. The Pennsylvania Fish and Boat Commission had previously stocked trout in several locations along Neshaminy Creek, including Tyler State Park, but has now stopped due to the contamination. In a press release, DEP Secretary Patrick McDonnell has said “An advisory like this is not something that we recommend lightly. The possible PFOS levels found in fish tissue is greatly concerning. DEP will continue to sample fish species and revisit this recommendation in the future.” PFOS are considered persistent and there are currently no plans for stocking fish in this watershed again. Nearby state parks The following state parks are within of Tyler State Park: Benjamin Rush State Park (Philadelphia County) Bull's Island Recreation Area (Hunterdon County, New Jersey) Delaware and Raritan Canal State Park (New Jersey) Delaware Canal State Park (Bucks and Northampton Counties) Evansburg State Park (Montgomery County) Fort Washington State Park (Montgomery County) Neshaminy State Park (Bucks County) Nockamixon State Park (Bucks County) Norristown Farm Park (Montgomery County) Ralph Stover State Park (Bucks County) Rancocas State Park (Burlington County, New Jersey) Round Valley State Park (Hunterdon County, New Jersey) Spruce Run State Park (Hunterdon County, New Jersey) Washington Crossing State Park (Mercer County, New Jersey) References External links DCNR Tyler State Park official webpage DCNR Calendar of Events Bucks County Disc Golf Alliance website Langhorne Players website for tickets and information Tyler Center for the Arts website Newtown Historic Association walking tour of Tyler State Park information Protected areas established in 1974 State parks of Pennsylvania Parks in Bucks County, Pennsylvania