PERMFILE41307

• Permit No: M1977526
• IBM Index Class Name: Permit File
• Doc Date: 11/4/1977
• Doc Name: DESCRIPTION OF WATER RESORCES
• Media Type: D
• Archive: No

•' reclamation on gr~ d water levels in the sur• nding wells
will be minimized. A dewa+ering trench will not be required
during mining, therefore, the drawdowns in the ground water
system will not be extensive. There will be limited impact
on water levels in the mining area because of lakes created
by the mining process. The impact will result in a general
rise in ground water levels north of the lakes, and a general
lowering of the ground water levels south of the lakes. There
will be no change of water levels east or west from the mid-
point of the lakes.
The lake created north of Henderson Road will result
in maximum changes of the water level of approximately
3 y"~feet. The maximum lateral extent of either a rise or a
lowering of the water table will be 9~,0 feet from the northern
and southern edges of the lake, respectively. The privately
owned domestic and irrigation wells in the Si•IL - the NE; of
Section 34 are within SOC feet of the lake, but are located
west of the lake (see Fiqure 2 ). The drawdown in the wells
will be lass than 0.5 feet and performance of the wells will
not be affected. The rise in the w~ ~r table ii,unediately north
of the lake !gill be approximately ,$ feet. Water levels will
rise northward from the lake to a distance of approximately
9~0 feet. There are no water users north of the lake, there-
fore, the rise in the water level will have no impact on
the surrounding property or land uses.
Water level changes resulting from the creation of
the lake south of Henderson Road caill re 5 f~:et. The lake
level will be high ,at the northern end of the p=operty ~•~hich
will result in a general rise in the water table north of
Henderson Road. The water levels will be low at he southern
part of the property. Tae lateral extent of water level changes
will be 2200 feet. The rise in the water le~aels north of
the 'road will ~_ncrease the water level in the privately
owned domestic. well in the ~W; of the NE; of Section 39,
by 3.5 feet.
The lateral change in the water level.> south of the lake
will extend to thn South Platte River. The river forms a
hydrologic boundary and drawdowns ~aill not extend south of
the river. [!ells south of the river will not be ir.:pacted
by the lakes. The distance from the southern p,,rt of the lake
to the domestic wells west of Riverdale Road is approximately
2000 feet. There will be negligeable impact on water levels
in shallow wells resuicing .`rom the lakes oz the property.
The deep wells will not be affr~ted by the water level fluctu-
ations. In addition, leakage from the Brantner and Lower
Clear Creek Ditches which occur between the lakes and the
wells, will ensure that drawdowns will not extend great
distances to the west. Thee will be no increase in leakage
from the ditches because of the presence of the la}-.e.
The South Platte River .-lso forms a h5•drolc~;::: barrier to
the lateral spread of .t..ter level changes nn the east.
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