Fig. 5. Water level above the pressure transducer located at 183 m bls in Well USGS-118 measured for a 14-mo period. Data was collected from 25 Mar. 1997 to 29 May 1998 at 60-min intervals. Flow in the nearby Big Lost River (see Fig. 2) is shown for comparison. Boxes marked A and B are expanded in Fig. 6 to illustrated the difference between isobaric (Box A) and non-isobaric (Box B) data.