Unimim also has a facility in southern New Jersey. Sand from Dividing Creek area, hauled out on the Winchester & Westerns New Jersey line. Railrroad centered in Bridgeton, NJ. Motie power is mostly ex-N&W, NKP GP's that have been overhauled in theri shop and had the noses lowered. Very nice operation, almost conveyor belt like. Have to ask a few friends that work there if they know what commodity those cars handle, but it seems to me those numbers are sand hauling hoppers. Robbman could be correct that they are being rented out, maybe the lining have gone bad. lv4142003