Baseline ConditionsBaseline Conditions
General General HydrogeologyHydrogeology
Schematic Cross-sectionSchematic Cross-section
Bedrock
Modeling based on GWIM data matches surprisingly well with the SWL w/o calibration
SWL/DataSWL/Data778-920 ft778-920 ft
ModelModel782-922ft782-922ft
Reality CheckReality Check
Comparison with Comparison with Observed BaseflowObserved Baseflow
0.07, 0.08
0.00, 0.05
0.42, 0.41
Flow ≈ 0.02 cfs
Flow ≈ .04 cfs
6.61, 6.38
0.68, 0.73
0.45, 0.071.34, 1.45
Flow ≈ 6.5 cfs
Flow ≈ 0.56 cfs
3.33, 2.55
13.82, 14.85
21, 29
Flow ≈ 9.4 cfs
Flow ≈ 3.9 cfs
Total Flow ≈ 23.75 cfs
Measured & Predicted Stream Flows
0
5
10
15
20
25
30
35
Osborne Road Cobb Road 43rd St 44th St M89 USGS
Locations
Flor
Rat
e (c
fs) Data: Aug 26
Data: Oct 9
Model
Measured & Predicted Stream Flows
0
5
10
15
20
25
30
35
Osborne Road Cobb Road 43rd St 44th St M89 USGS
Locations
Flor
Rat
e (c
fs) Data: Aug 26
Data: Oct 9
Model
Testing Testing Management Management
OptionsOptions
Assessing the effectiveness Assessing the effectiveness of Management Scenariosof Management Scenarios
Changes in Land-use/Land Changes in Land-use/Land Management PracticesManagement Practices
Corn Corn Brome grass Brome grass Rate of recharge 12 in/yr Rate of recharge 12 in/yr → 16.5 in/yr→ 16.5 in/yr
Corn Corn Medium Density Residential Medium Density Residential Rate of recharge 12 in/yr Rate of recharge 12 in/yr → 8.3 in/yr→ 8.3 in/yr
Corn Corn Corn-winter Wheat Corn-winter Wheat Rate of recharge 12 in/yr Rate of recharge 12 in/yr → 11.5 in/yr→ 11.5 in/yr
Model OutputModel Output
Simulation ResultsSimulation Results
CornCorn Urban UseUrban Use
Model OutputModel Output
Simulation ResultsSimulation Results
CornCorn Brome grassBrome grass
Sub-model MapsSub-model Maps
Corn Brome grass
Sub-model MapsSub-model Maps
Corn Urban use
Well Location: Well Location:
Upstream vs. DownstreamUpstream vs. Downstream
Well Depth: Well Depth:
Shallow vs. DeepShallow vs. Deep
Put in a high capacity well Put in a high capacity well
Shallow wellShallow wellUpstream
Downstream
Shallow WellsShallow WellsBefore Wells Upstream Downstream
Shallow WellsShallow Wells
Before Wells Upstream Downstream
Deep wellDeep wellUpstream
Downstream
Deep WellDeep WellBefore Wells Upstream Downstream
Deep WellDeep Well
Before Wells Upstream Downstream