II 
The: Waters of the Rio Grande 
SAMPLES TAKEN AT STEWART’S PLACE 6 OCT., 1908 
Analytical results Combined 
Percent 
Grains per 
Silicic acid . 
23.392 
Imp. Gal. 
Sulfuric acid . 
10.222 
Calcic Sulfate . 
1.5860 
Carbonic acid. 
16.289 
Calcic Carbonate . 
2.8244 
Phosphoric acid. 
Trace 
Magnesic Carbonate . .. 
0.3761 
Calcic oxid . 
24.644 
Potassic Carbonate .... 
0.1337 
Magnesic oxid . 
1.949 
Potassic Chlorid . 
0.2227 
Potassic oxid . 
2.553 
Sodic Chlorid. 
0.1815 
Sodic oxid . 
10.239 
Sodic Silicate. 
1.6454 
Ferric oxid . 
0.686 
Ferric oxid . 
0.0620 
Aluminic oxid . 
0.475 
Aluminic oxid . 
0.0432 
Manganic oxid (br).... 
0.111 
Manganic oxid (br). 
0.0101 
Ignition . 
(7.569) 
Excess Silicic acid. 
1.3145 
Sum . 
100.536 
Total. 
8.3996 
Oxygen equivalent to 
Chlorin . 
0.536 
Total . 
100.000 
Total solids 8.4 grains per imperial gallon. Loss on ignition 2.24 
grains. 
SAMPLE TAKEN AT STATE 
I BRIDGE 10 OCT., 1908 
Analytical results 
Combined 
Percent 
Grains per 
Silicic acid . 
22.568 
Imp. Gal. 
Sulfuric acid . 
11.674 
Calcic Sulfate. 
1.8700 
Carbonic acid . 1 
17.193 
Calcic Carbonate. 
2.3570 
Phosphoric acid . 
Trace 
Magnesic Carbonate.... 
0.8747 
Chlorin . 
2.228 
Potassic Carbonate. 
0.3840 
Calcic oxid . 
22.204 
Sodic Carbonate. 
0.0114 
Magnesic oxid . 
4.444 
Sodic Chlorid . 
0.3463 
Potassic oxid . 
2.780 
Sodic Silicate. 
1.6092 
Sodic oxid... 
10.685 
Ferric oxid . 
0.0486 
Ferric oxid . 
0.517 
Aluminic oxid . 
0.0520 
Aluminic oxid . 
0.552 
Manganic oxid (br). 
0.0048 
Manganic oxid (br). 
0.049 
Excess Silicic acid. 
1.3320 
Ignition . 
(5.60S) 
• 
Total. 
8.8900 
Sum . 
100.502 . 
Oxygen equivalent to 
Chlorin. 
0.502 
Total . 
100.000 
Total solids 8.89 grains per imperial gallon. Loss on ignition 2.38 
grains. 
SANITARY 
ANALYSIS 
Parts per Million 
Total solids 
.127.000000 
Chlorin . . . . 
. 0.000315 
Nitrogen as nitrates. 
. None 
Nitrogen as 
nitrites. 
Saline Ammonia . 
. None 
Albuminoidal 
Ammonia . . . 
. 0.0000014 
The distance between the points where the first and last of these 
Rio Grande waters were taken is not far from too miles, probably 
more than 60 of these are within the valley proper. The total solids 
