WSP12193

• File Number: 8407
• Description: Platte River Basin - River Basin General Publications
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 9/1/1975
• Author: Missouri River Basin
• Title: Draft Report on the Platte River Basin - Nebraska - Level B Study
• Water Supply Pro - Doc Type: Report/Study

OilZG51

Fi gure 2- 5
ALTERNATE SOURCES OF GROUND WATER

~

f"....-:I
.;:......:.:-j
......:.:::.t

U=='="~l
..-.-.....-.
--_.
.---'---.
"'--_....,..._,,
. :":~~::f....:;:t

~

.~

i
I i
,:- . i
rJ l
:-___+__1, I I 1 I I
: i i j ! !.: i i
.' 1 '1 '~ l
....._....L___.l.-..._ ____~_ _.-'- .-

,
.
(
\,~
I \ 1-
. . ....
.---- , ,
I ! i :
~-.L--~---->

Brule Formation. Mostly a thick sequence of clay, claystone, slIt, and siltstone. cracks and
lractutes In the uppermost pan yield water to wells in Lodgepole and Pumpkin creek valleys and
In parts of the North and SOuth l>1atte River valleys.

Chaclron Formation. fljIsal deposits of salld and gravelly sand overlain by clay and claystone. Basal
sand and graveuy sand is a source of water to some domestic and stock wells In the western part of
the Upper Platte Subbasin.

Lance and Foxbills Formations. Sandstones with interbedded clay and shale. Potential source for
limited supplies or water.

Niobrilta Formation. Mostly cream 'colored to gra)' chalk, shaley limestone, and limey shale.
Yields water to wells in areas where the formanon has been exposed to long periods of weathering.
Source of limited supplies of water where directly overlain by saturated sands and gravels in the
Pleistocene depOsits or the Ogallala Formation.

Dakota Formation.. Sandstone, with clay, claystone, siltstone, and sandy sill:. Capable of
yseldlng water to wells and is used as a source of supply for municipal, stock, and domestic
supplies in some pans of the lower Platte Subbasin.

2-7