... potential recharge rates and patterns within the Rillito Creek Basin near Tucson, AZ. Specifically, we examine the effect of the choice of PTF used to relate readily available soil textural data to soil hydraulic properties on these predictions. All of our simulations make use of identical input data...

...Fig. 5. Location of Rillito Creek study area and view of Rillito Creek within the Tucson Basin, Tucson, AZ. ...

...). The second sediment was coarse-grained alluvium from Rillito Creek (36.2% gravel, 55.2% sand, 8.6% silt and clay). Circular 48 cm diameter by 50 cm tall columns were packed to a bulk density of 1.34 g cm −3 ( Fig. 4 ). Columns were instrumented with four horizontal time domain reflectometry (TDR) probes...

... 600 m south of Rillito Creek, which is a major recharge source in the Tucson Basin (Figure 5d ). Perched aquifers are common in the alluvium south of Rillito Creek ( Pool and Schmidt, 1997 ). The screened interval of the well is adjacent to the regional aquifer and lies below the water level...

... physics . Academic Press , San Diego, CA . Hoffmann , J.P. , M.A. Ripich , and K.M. Ellett . 2002 . Characteristics of shallow deposits beneath Rillito Creek, Pima County, Arizona . U.S. Geological Survey Water-Resources Investigations Rep. 01-4257 . USGS , Denver, CO...