Corrections for Groundwater Hydrology by Todd and Mays
5/4/2013
Page
27
Third line of section 1.7.1, “Appendix A” should be “Appendix B”
39
In the equation for volumetric content, “ = 0.1245 g/cm3 = 0.125” should be
“ = 0.1245 = 0.125”
50
Second line above equation 2.5.3, “Wu” should be “Wy”
90
Last line of text, just above the footnote, “Ns/m2” should be “N/m2”
126
Equation 3.10.2, right hand side of equation =
𝑑
𝑑
𝑑𝑡
𝜕𝜃
(𝜌𝜃𝑑𝑥𝑑𝑦𝑑𝑧) = 𝜌𝜃𝑑𝑥𝑑𝑦𝑑𝑧 𝜕𝑡 should
𝜕𝜃
be = − 𝑑𝑡 (𝜌𝜃𝑑𝑥𝑑𝑦𝑑𝑧) = −𝜌𝑑𝑥𝑑𝑦𝑑𝑧 𝜕𝑡
𝜕𝑞
127
Equation 3.10.3, right hand side should be = −𝜌𝑑𝑥𝑑𝑦𝑑𝑧 𝜕𝑧
141
Problem statement 3.4.3, add to the end “L1= 140 m, L2 = 100 m, L3= 270 m,
KA = 35 m/day, KB = 8 m/day, and KC = 16 m/day”
142
Problem 3.5.2, 4th line, “permeability” should be “hydraulic conductivity”
Vertical line with arrows for the 25 m should extend up to the water table.
175
Example 4.5.1, the match point for the late-time match point (third line above equation at
(bottom of page) should be “(t = 20 min, s = 0.57 ft) and (1/uy = 1.0, W(uy, η) = 1.0)” ,
then the equation at the bottom of the page should be
𝑆𝑦 =
4(20.16 𝑓𝑡 2 /𝑚𝑖𝑛)(1)(20 𝑚𝑖𝑛)
(73 𝑓𝑡)2
= 0.303
177
Denominator of first equation on page, “ 25 ft2” should be “25 ft”
185
Second equation from bottom of page, “= -1” should be “= -1.60”
188
In the second equation above Figure 4.7.9, take out the first “=” sign.
198
Problem statement 4.1.1 add “ne = 0.25”
Problem statement 4.1.2 add “ne = 0.25”
200
Problem statement 4.3.1, third line, “hydraulic gradient” should be “hydraulic
conductivity”
201
Problem statement 4.4.7, delete “and storativity”
In the table below the problem statement 4.4.7, second line of numbers, second column
“20” should be “10”
250
Equation at top of page is equation number (5.12.3) instead of (5.12.4)
256
In equation 5.14.3, “Ss” should be “S”
First and second line below equation 5.14.3 “Ss is the storage coefficient” should be “S is
the storage coefficient”
257
262
𝑇𝑡
𝑇𝑡
𝑐
𝑐
Figure 5.14.2, 𝑟 2 should be β = 𝑟 2
Figure 5.15.1(a), “H” should be “y” and “R” should be “rw”
Section 5.15.1, 7th line, “, H,” should be “, y,”
263
Two lines above equation 5.15.2, “If Lw is less than h,” should be “If Lw (defined in
Figure 5.15 (a) is less than h,”
Equation 5.15.2, “H” should be “h”
268
Table 15.15.2a should be Table 5.15.2a
Table 15.15.2b should be Table 5.15.2b
274
Problem “5.11.5” should be “5.12.1”
Problem “5.11.6” should be “5.12.2”
378
Tritium contamination should be the shaded portion and Chemical processing high-level
waste tank areas should be the cross-hatched.
380
Figure 8.8.1, “dx, dy, dz” should be “dx, dy, dz”
382
Line above equation 8.8.6, “date” should be “data”
𝜕𝐶
Equation 8.8.10 “nDx2C/2xdA” should be “ 𝐷𝑥 𝜕𝑥 𝑑𝐴 “
384
Equation 8.8.22, the pore velocity (average linear velocity) “v” should be “vL” with an
over bar
385
Left-hand side of equation 8.8.23, first term is dispersion term, second term is advection
term, and third term is reaction term
407
Example 8.11.1, solution, “w=Q/(2Ti) = Q/(2Kbi) = 2200 m3/day/[2(1200 m/day)(35
m)(0.0008)] = 32.7 m” should be “w=Q/(Ti) = Q/(Kbi) = 2200 m3/day/[(1200 m/day)(35
m)(0.0008)] = 65.4 m”
409
Second line of Problem 8.8.4 statement, “hydraulic gradient” should be “hydraulic
conductivity”
418
Equation 9.4.15f should be
𝐹𝑖,𝑗,𝑡 = −𝑆𝑖.𝑗
∆𝑥𝑖 ∆𝑦𝑗
∆𝑡
(𝑗𝑖,𝑗,𝑡−1 ) − 𝑞𝑖,𝑗,𝑡
421
Third line from bottom of page, “the x axis.” should be “the y axis”
422
Figure 9.5.1 should be
422
Equation 9.5.2 should be
Equation 9.5.3 should be
423
Figure 9.5.2 should be
424
Figure 9.5.4 make the following changes.
Δrj-1 should be Δyj-1
Δrj should be Δyj
Δrj-1/2 should be Δyj-1/2
Δci should be Δxi
Δvk should be Δzk
qi,j-1/2,k should be qi,j-1/2,k
426
Third line of equation (9.5.24), “-CZi+1/2,j,k” should be “-CXi+1/2,j,k” and
𝑚
𝑚
“ℎ𝑖,𝑗−1,𝑘
“ should be “ ℎ𝑖,𝑗,𝑘
”
437
Left-hand side of equation 9.6.12 should be “CVi,j,k+1/2 =”
438
Left hand side of equation 9.6.14 should be “CVi,j,k+1/2 =”
451
Third line from bottom of page, “(Appendix B)” should be “(Appendix C)”
452
Third line on page “(Appendix B)” Should be “(Appendix C)”
460
Problem 9.9.3 statement, 6th line, “Use a specific storage of 0.01.” should be “Use a
storage coefficient of 0.01.”
475
Second line from bottom of page, “article” should be “articles”
576
Third line from bottom of page, “v = q/W = KiiW/W = -Ky” should be “v = q/W =
KyiW/W = -Ky”
578
First equation line in Solution, “D = B(D B)” should be “D = B(D/B)”
Second equation line in Solution, “H = H(H/B)” should be “D = B(D/B)”
579
Line below first equation “hydraulic radius” should be “hydraulic conductivity”
590
Equation 13.6.6, the negative sign in the exponent should be positive
591
Fifth line on page, “(-kt/D)” should be “(kt/D)”
Equation 13.6.8 should be 𝑦 = 𝐻 (1 +
𝑘𝑡
𝐷
)
598
Figure 14.5.1 (b) the axis labeled z should be z as shown below
598
Right hand side of equation 14.5.3 should be “0”
599
First line of second paragraph of Solution, “occur” should be “occurs”
611
Fourth line of Problem 14.6.1 statement, “top” should be “bottom”