I'm not sure about that specific one, however the same traffic would be carried on the 453.900 simulcast from Elsmere. You'll have no problem hearing that from the Hockessin area. I hear it all over South Jersey, New Castle County, and into PA.
You could also try the 453.300 and 453.050 patches. In the past I thought they had better audio than 453.900, but one of them does have a noise/interference issue from time to time, so I gave up trying to listen to them. You'd need both of them to hear everything that is carried on the 453.900.
-Ryan