| Ashton, a
community of approximately 1200 people, is located in Fremont
County south of the Targhee National Forest (Figure 1). In
recent years, the city’s domestic water supply, derived from
two wells, contains elevated nitrate concentrations. The Idaho
Department of Environmental Quality (IDEQ) contacted the Idaho
Water Resources Research Institute Rural Community Water Project
team to assist in providing hydrogeologic information important
to the future water supply of the city. |
|
|
| The team plans
on obtaining water quality data from the IDEQ and well log data
from the Idaho Department of Water Resources. With the well log
data, the team intends to create a ground water flow direction
map of the aquifer system and a map of the surface sediments
overlying the basalt aquifer. The latter map in conjunction with
the water quality data will be used for determining any
relationship between soil depth and nitrate concentrations in
the ground water. In addition the team will investigate any
temporal relationships between nitrate concentration and
precipitation and/or fertilizer application. |
|
