This dataset belongs to the lead author at University of Kansas. This dataset is not publicly accessible because: This is non-EPA generated data and can't be uploaded because it doesn't belong to EPA. It can be accessed through the following means: Contact primary author. Format: Excel files, python code. This dataset is associated with the following publication: Seybold, E.C., J. Hammond, A. Husic, H. McMillan, H.E. Golden, J.R. Christensen, C. Segura, M. Zimmer, A.N. Price, K.L. Jaeger, L. Li, D.T. Mahoney, F. Cheng, C.N. Jones, C. Kelleher, R. Sando, C.R. Lane, and A. Ward. Emergent Headwater Types for Watershed Monitoring, Research, and Planning. GEOPHYSICAL RESEARCH LETTERS. American Geophysical Union, Washington, DC, USA, 53(17): e2026GL123244, (2026).