WSP02020

• File Number: 8027
• Description: Section D General Correspondence-Federal Agencies
• State: CO
• Date: 10/1/1967
• Author: CT Jenkins
• Title: US Department of Interior-United States Geological Survey Water Resources Division and Quality of Water Branch-1967-1968-Techniques for Computing Rate and Volume of Stream Depletion by Wells
• Water Supply Pro - Doc Type: Report/Study

"

Table 2.--Computation of residual effects of pumping

[Pumping stopped when :!.J:l ~ ; 0,35, See the explanation for Table 1 for
definition of units]

(1) (2) (3 ) (4) (5 ) (6 ) (7) (8)
0,35 0.232 0.034 0 0 0 0,232 0.034
,42 .275 .052 .07 .008 .0001 ,267 .052
.45 .292 .060 .10 .025 .0006 .267 .059
.50 .317 .076 .15 .068 .003 .249 .073
.60 .361 .109 .25 .157 .014 .205 .095
.70 .398 .148 .35 .232 .034 .166 .114
1. 00 .480 .280 .65 .380 .128 .099 .152
1.50 .564 .543 1.15 .510 .354 .053 .189
2.00 .617 .838 1.65 .581 .629 .035 .209
3.00 .683 1.49 2.65 .664 1. 255 .019 .235
5.00 .752 2.94 4.65 .743 2.67 .009 .27
7.00 .789 4.48 6.65 .783 4.21 .006 .27
10.00 .823 6.90 9.65 .8198 6.61 .0032 .29
15.00 .855 11.1 14.65 .8528 10.81 .0022 .29
20.00 .872 15.4 19.65 .8718 15.00 .0012 .30
30.00 .897 24.3 29.65 .8961 23.99 .0009 .31

(1)

(1 + t \
.ll.~2. i) ; g/l!i.for pumped well if pumping had continued.

(2) q/Q for pumped well if pumping had continued. Values from Table 1 for
- -

(3)

value of t]./::2fL indicated in Col. 1.
vT/Qa2S for pumped well if pumping had continued.
- --

Values from Table 1

for value of tT/a2S indicated in Col. 1.
- --

(4 )

tT/a2S for recharged well, beginning at cessation of pumping.
- --

(5) q/Q for recharged well, beginning at cessation of pumping. Values from
- -

Table 1 for value of 'EJ/l'i. indicated in Col. 4.
(6) ~/Qa2~ for recharged well, beginning at cessation of pumping. Values
from Table 1 for value of tT/a2S indicated in Col. 4.
- --

(7) Col. 2 minus Col. 5 ; residual ::JIl.
(8) Col. 3 minus Col. 6' residual ~/~2~. -?
, 0&
<'

14