Two soil associations exist in the Ithan Creek watershed. The Neshaminy-Lehigh-Glenlg soil association is present in a small part of the watershed. It consists of silty, well drained, gravelly, and deep soil that rests on gabbro and granodiorite bedrock.
Two soil groups are present in the Ithan Creek watershed. The Neshaminy-Lehigh-Glenlg soil group is found in a limited area of the watershed. It comprises silty, well-drained, gravelly, and deep soil that lies on gabbro and granodiorite bedrock.