WSP05388

• File Number: 8449
• Description: Platte River Projects
• State: CO
• Basin: South Platte
• Date: 9/9/1980
• Author: USGS
• Title: Hydrologic Analysis of the Proposed Badger-Beaver Creeks Artificial-Recharge Project, Morgan County, Colorado
• Water Supply Pro - Doc Type: Publication

.'

,.---- ----------
_ After adding the region of higher hydraulic conductivity in the area of
:the sand dunes and making a few minor adjustments to specific yield, pumping,
,and boundary fluxes, the model was run in annual time increments simulating
,60 years. The new initial condition was computed and the simulated water-
table configuration is shown on figure 25. As indicated in table 11, the sim-
'ulated streamflow in Beaver Creek was 20.9 ft3/s. The simulated water table
.for 1947 (fig. 26) can be compared to figure 18 and the simulated water table
;for 1978 (fig. 27) can be compared to figure 20. The general water budgets
for these 2 years are summarized in table 11. Additional substantiation that
the model is reasonably calibrated can be seen by the comparisons of the sim-
ulated water levels to the measured hydrographs of the six wel Is having at
:least 20 years of record (figs. 28-33). Although some of the simulated re-
sults are somewhat less than measured water levels, considering the possible
range of water levels and the fact that the actual observation wells are not
located in the middle of the simulated nodes, the results are not thought to
be unreasonable.

Table 11.--Simulated watep budgets fop Beavep Creek valley

computed duping calibration

Pre; rrigation

1947

1978

Cubic feet pep second

In flow:

Boundary flux-------

23.1

23.1

23.1

Outflow:

Pumping-------------

o

20.8

24.0

Streamflow----------

20.9

9.9

o

Boundary flux-------

2.2

2.2

2.2

Change in storage-----

o

-9.8

-3.1

.:

~