Page 344 - Hydrogeology Principles and Practice

HYDD01 12/5/05 5:31 PM Page 327

Values of q/Q and v/Qt

corresponding to selected

values of t/F for use in
Appendix 7
computing the rate and

volume of stream depletion

by wells and boreholes

t/F q/Q v/Qt t/F q/Q v/Qt

0 0 0 1.9 0.608 0.409
0.07 0.008 0.001 2.0 0.617 0.419
0.10 0.025 0.006 2.2 0.634 0.438
0.15 0.068 0.019 2.4 0.648 0.455
0.20 0.114 0.037 2.6 0.661 0.470
0.25 0.157 0.057 2.8 0.673 0.484
0.30 0.197 0.077 3.0 0.683 0.497
0.35 0.232 0.097 3.5 0.705 0.525
0.40 0.264 0.115 4.0 0.724 0.549
0.45 0.292 0.134 4.5 0.739 0.569
0.50 0.317 0.151 5.0 0.752 0.587
0.55 0.340 0.167 5.5 0.763 0.603
0.60 0.361 0.182 6.0 0.773 0.616
0.65 0.380 0.197 7 0.789 0.640
0.70 0.398 0.211 8 0.803 0.659
0.75 0.414 0.224 9 0.814 0.676
0.80 0.429 0.236 10 0.823 0.690
0.85 0.443 0.248 15 0.855 0.740
0.90 0.456 0.259 20 0.874 0.772
0.95 0.468 0.270 30 0.897 0.810
1.0 0.480 0.280 50 0.920 0.850
1.1 0.500 0.299 100 0.944 0.892
1.2 0.519 0.316 600 0.977 0.955
1.3 0.535 0.333
1.4 0.550 0.348
1.5 0.564 0.362 Source: Jenkins, C.T. (1968) Computation of rate and volume of
1.6 0.576 0.375 stream depletion by wells. In: Techniques of Water-Resources
1.7 0.588 0.387 Investigations of the United States Geological Survey. Book 4,
1.8 0.598 0.398 Hydrologic Analysis and Interpretation. United States Department
of the Interior, Washington, Chap. D1.