WSP07201

• File Number: 8029
• Description: Section "D" General Correspondence - Colorado Agencies ‎(Alpha, not Basin Related)‎
• State: CO
• Date: 6/1/1962
• Author: E Jenkins, E Moulder
• Title: Ground-Water Technology and Litigation Problems, Journal of the Irrigation and Drainage Division Proceedings of the American Society of Civil Engineers
• Water Supply Pro - Doc Type: Report/Study

26

June. 1962

ffi2

5775

5750

Defendant's ....ell 3
PIClinMf'SWell\

"', ~C(eel< ~
" !-.'...-'i'.

5725

5650
5625
~ 5850
~

(a) SECTION A-A'

. 0...." ," ,~~ ~'..
.. ~"< 0" "'.~';: . Q .. _0
"'. .3' ,0 ... .:.. .D~." --=~..
.. .<>:: ..., 'l>o' ':.."0." ,. ,'..- _-;!;
".0.. (/.................~~_
D 9 ..0 .. .,'""'.. .
.<10'." .. '.' D " ., ., Q
o >. .'" ..~-...o ". <>' C .
.. .0 . ,._ ,'"

5700

5675

'= 5825

t=-::::--==1 Clay
c=J Sand
~Gra...e'
..... Walerlable

o 1000 2000
I r I
Scale. In leet

"
.
~ 5800
>
.
;;;

Oefend<tnt's well 4

5775

5750

5725

5700

----
......-.

o
_ .. a. 0
.. ."'ao ", :""..I':O.D
(>.... "" .. ~ ~ <>.....
.. ... .. . .: .. .. .. . ...~ 0' "
.....~.." p"" "-
,,<>. ,,'
. " : ..,.
o.

5675

Shale

5650

Ib) SECTION B-B'

5625

FIG. 3,-CROSS SECTIONS OF VALLEY

ennial stream only at the upper and lower ends of the problem area where the
stream crosses the underlying old channel.
The effects of pumping in the valley were determined by applying common-
ly accepted methods of analysis to the basic data. The basic data consist of
records of all major wells and wells used for observation in the area, and in-
clude measurements of well depth, depth to water, withdrawal yield, and draw-
down. Also included are logs of test holes and wells, and a classification of
wells by use. Since 1944, water-level measurements were made twice a year
in several wells by the Colorado State University. at Fort Collins, Colo., and
the USGS. The data from these measurements were useful in conducting the
analysis. The data gathered during this study was simplified for use herein,
although detailed information on aquifer constants. computations, ground-water
underflow and storage. pumpage rates of wells, precipitation. recharge from
irrigation. streamflow. and transpiration are explained elsewhere.6.7,B Fig.
4 shows the variation in yield of the plaintiff's well with changes in the water
level during the period from 1944 to 1960. As a result of the data shown in
Fig. 4. the plaintiff and defendant entered into an agreement in ~'tay, 1957,
while awaiting the outcome of the litigation. In this agreement. both parties
agreed that whenever the water level in the Bender well fell to under 31 ft be-
low land surface, the defendant would stop pumping wells 1. 2. and 3, so that