The: Waters of the Rio Grande 23 
DRAIN-WATER SW. V± SEC. 24. T. 40 N.. R 8 E. 
Analytical Results 
Percent 
Carbon . 1.563 
Silicic acid . 14.456 
Sulfuric acid . 14.697 
Phosphoric acid. 0.142 
Carbonic acid. 14.813 
Chlorin. 6.309 
Calcic oxid . 17.418 
Magnesic oxid . 5.231 
Potassic oxid . 6.282 
Sodic oxid . 16.549 
Ferric and Alum, oxids. 0.205 
Manganic oxid (br).... 0.210 
Ignition . (3.549) 
Sum . 101.424 
Oxygen equivalent to 
chlorin . 1.424 
Total. 100.000 
Combined 
t 
Percent 
Carbon . 1.563 
Calcic sulfate. 24.995 
Calcic phosphate. 0.310 
Calcic carbonate. 12.406 
Magnesic carbonate .... 10.934 
Potassic carbonate. 9.213 
Sodic carbonate . 1.748 
Sodic chlorid . 10.411 
Sodic silicate . 19.726 
Ferric and Alum, oxids. 0.205 
Manganic oxid. 0.210 
Excess Silicic acid. 4.730 
Ignition . (3.549) 
Total . 100.000 
Total solids 21.8 grains per imperial gallon. 
Loss on ignition 8.6 grains. 
The above analyses are given to show the general composition of 
the ground- and drain-waters in this portion of the district under dis¬ 
cussion and to show that they are widely different from the Rio 
Grande water proper, but they also serve very well to show the dif¬ 
ferences between a ground-water and a drain-water for they were 
taken within a very short distance of one another. 
The next samples of water are from the center of this district. 
The lake-water was from a temporary lake and probably represents 
run-off water. 
GROUND-WATER MOSCA TEMPORARY LAKE, RUN-OFF 
Percent 
WATER 
Silicic acid . 
2.226 
Partial 
Analysis 
Sulfuric acid . 
37.249 
Percent 
Phosphoric acid . 
0.076 
Sodic sulfate . . . 
69.92 
Chlorin . 
5.342 
Sodic carbonate 
13.91 
Carbonic acid. 
10.042 
Sodic chlorid . . . 
14.54 
Calcic oxid . 
4.651 
Ferric and Alum 
oxids. 
0.56 
Magnesic oxid . 
2.906 
Calcic oxid . 
0.61 
Potassic oxid . 
3.596 
Silicic acid . 
0.85 
Sodic oxid . 
34.289 
Ferric and Alum, oxids. 
0.035 
100.39 
Manganic oxid (br).... 
0.059 
Ignition . 
(3.792) 
Sum . 
102.263 
Oxygen equivalent to 
chlorin . 
2.263 
Total . 
100.000 
