The Waters oe the Rio Grande 
35 
the water of a mountain stream and that of these artesian wells is 
shown quite clearly by the analysis of the Rio Grande water taken at 
Del Norte and that of the Bucher or Electric Eight Plant well. The 
Rio Grande water contained 5.46 (grains of total solids per gallon, the 
artesian water 14-63 grains, the solids from the river water contained 
lime and magnesia, 22.77 percent, sodic oxid 8.48 percent; the solids 
from the artesian water contained, of lime and magnesia 3.23 percent, 
of sodic oxid, 24.09 percent. These changes are interesting for there 
is no question expressed by those who have investigated the artesian 
waters of this basin but that they are furnished by the mountain 
streams as they flow over or into the edges of the sand strata. 
THE BROWN ARTESIAN WATERS 
We have given the brown waters no consideration as yet, because 
we accept it as evident that, if the white waters affect the composition 
of Rio Grande waters in no appreciable manner, it is not probable 
that the brown waters, peculiar to an area more remote from the 
river, would exercise a perceptible influence upon its waters, espe¬ 
cially, as there is an area in which the white artesian water occurs be¬ 
tween the brown water area and the river 
The area of brown artesian waters is designated as the Mosca- 
Hooper section, because these are the two important towns lying 
within the area. 
The following analyses will show the uniformity in the compo¬ 
sition of these waters and their marked differences in this respect from , 
the white artesian waters, analyses of two of which have been given 
with the explanation that these are thoroughly typical of all the sam¬ 
ples analyzed. 
ANALYSES OF THE RESIDUES PROM BROWN ARTESIAN WATERS, 
HOOPER, COLO. 
Railroad Well 
Mill Well 
450 feet deep 
750 feet dee 
Percent 
Percent 
Silicic acid . 
9.576 
5.167 
Sulfuric acid . 
0.389 
0.196 
Carbonic acid. 
34.387 
36.923 
Chlorin. 
.766 
0.434 
Calcic oxid . 
0.371 
0.563 
Magnesic oxid . 
0.118 
0.179 
Potassic oxid . 
0.107 
0.456 
Sodic oxid . 
49.688 
51.766 
Ferric and Alum, oxids. 
0.208 
0.170 
Manganic oxid (br).... 
0.239 
0.146 
Ignition . 
(4.324) 
4.267 
Sum . 
Oxygen equivalent to 
100.173 
100.276 
chlorin . 
0.173 
0.098 
Total . 
100.000 
100.178 
, gains imperial gallon 
3.92 
6.7 
lition . 
70.56 
104.3 
