Partially-Filled Macropores in Swelling and Nonswelling Media: Flow Modes Requiring Supplementation of Darcy’s Law

John R Nimmo1, Kimberlie S Perkins2 and Leia Gaten-Slahor1, (1)USGS National Research Program, Menlo Park, CA, United States, (2)USGS, Water Resources Mission Area, Moffett Field, United States