Errata known to the author, listed in order by page
number.
Does not include obvious typos of
little significance.
Thanks to Scott Korom, Phillip
Binning, Mark Bakker, Ye Zhang, and David Mays, who have discovered
and reported some of these.
|
Page |
Comment |
|
43 |
The areas in the equation in Example 3.2 should have units of m2, not m3. |
|
44 |
In Figure 3.4, the water table should be higher,
consistent with the well levels. |
|
47 |
Bear (1972) estimates the
critical Reynold’s number (R) to be between 1 and 10. In Bear’s definition of R, he uses specific
discharge q instead of average linear velocity v. Not the use of v as in Equation 3.10 is the
standard definition of R in fluid mechanics. |
|
79 |
The densities in problem 19 should have units of g/cm3, not g/cm2. |
|
128 |
In Figure 5.2 there is an extra dsve floating between the upper and middle graphs. |
|
139 |
In Figure 5.11, the arrows on the faults to the right of the basin show reverse faulting, but they should show normal faulting like on the left. |
|
174 |
There should be no minus sign on the right side of Eq. 6.20 |
|
239 |
In problem 10, the drawdown data of Table 7.4 were recorded at an observation well located between the pumping well and the river, 15 m from the river and 20 m from the pumping well. The data are not recorded at the pumping well, as stated in the text. |
|
274 |
Problem 3 assumes steady state flow. |
|
283 |
Last paragraph, 3rd and
4th sentences should read: “The units of electrical conductivity are
Siemens per cm (S/cm) or microsiemens per cm (μS/cm). In
older literature, the units of electrical conductivity were called mho/cm (=
S/cm) or mmho/cm (mS/cm).” |
|
284 |
First paragraph: all electrical
conductivity units in this paragraph should be “μS/cm”,
not “μS”.
The units of the constant A are (μS/cm)/
(mg/L). |
|
284 |
In Table 9.1, the charge of
nitrate should be –1, not -2 |
|
287 |
In Table 9.3, the chloride mass
should be 35.45, not 35.35 g. |
|
294 |
After equation 9.17, it should
read: “…where EC is the electrical conductivity in μS/cm.” |
|
358 |
In Figure 10.12, the labels for the curves labeled ``0.012'' and ``0.0043'' are reversed. |
|
364 |
The last calculation on the page should yield -4 x 10-13 mg/(cm2 sec). A unit conversion is missing between cm3 and L. |
|
370 |
The horizontal bar scale in Figure 10.26 is 20 m, not 40 m. |
|
381 |
The solution of equation 10.39 is valid for x >= 0. This limitation should appear in the equation. |
|
383 |
At the top of the page, it says that “…c/c0 =0.5 is always seen at a distance of x = vt.” More precisely, this should say “…c/c0 =0.5 is seen at a distance of x = vt at large times (v2 t/Dmx > 1000).” For details on the behavior of this solution, see the discussion by P. Binning in the journal Ground Water, 2000, vol 38(1), p. 4-5. |
|
383 |
The Baetsle (1969) solution quoted in Eqs. 10.43 and 10.44 is incorrect, as was the original published in 1969. To be correct, there should also be a factor n (porosity) in the denominator of the first fraction to the right of the equal sign in both equations. |
|
411 |
The 5th equation from the top should have second partial derivatives of h with respect to y, but instead includes a partial derivative with respect to x. This typo occurs twice in the same line. |
|
415 |
The answer for Chapter 1 problem 5c assumes that groundwater pumped from wells is returned to the ground within the basin. If you assume it is exported out of the basin, then the correct answer would be ET = 12.7 in/yr. |
|
416 |
The units for the answer to Chapter 6 problem 1 should be m2/day, not m3/day. |
|
417 |
Due to late revisions to the data in Table 10.2, the answers for a couple of problems changed slightly. The answer to Chapter 10 problem 4 should be ethylbenzene = 3.5 mg/L. The answer to Chapter 10 problem 6 should change from 1016 to 1330 mg/L. |
To return to Groundwater Science companion web site, hit “back” on your browser.