COLORADO IRRIGATION WATERS AND THEIR CHANGES. 55 
TABLE XLIV.—ANALYSIS OF POUDRE RIVER WATER, 
SAMPLE TAKEN TWO MILES ABOVE GREELEY, 
AUGUST 11, 1902. 
Analytical 
Results. 
Per 
Cent. 
Grs. 
Imp. 
Gal. 
Combined. 
Per 
Cent. 
Grs* 
Imp • 
Gab 
Silicic Acid . 
0.004 
1.035 
Calcic Sulfate_ 
40.186 
46.013 
Sulfuric Acid_ . 
48.009 
54.970 
Magnesic Sulfate.. 
31.796 
36.406 
Carbonic Acid_ . 
5.171 
5.920 
Potassic Sulfate.. _ 
0.628 
0.719 
Chlorin.__ __ 
2.419 
2 770 
Sodic Sulfate _ 
5.292 
6.059 
Sodic Oxid ... 
12.742 
14.590 
Sodic Chlorid __ 
3.987 
4.565 
Potassic Oxid 
0.394 
0 451 
Sodic Carbonate.. 
12.469 
14.277 
Calcic Oxid.. 
16.540 
18.938 
Sodic Silicate _ 
1.833 
2.099 
Magnesic Oxid 
10 646 
12.190 
Ferric and Al. Oxids 
0 069 
0.079 
Ferric and Al. Oxids 
0.069 
0.079 
Manganic Oxid 
Trace 
Trace 
Manganic Oxid. 
Trace 
Trace 
Ignition. _ __ 
3.660 
4.191 
Ignition __ 
3.660 
4 191 
Sum 
99 920 
114 408 
Sum__ . _ 
100.554 
115.134 
Excess Sodic Oxid _ 
0 084 
0.096 
Oxygen Eq. to Cl.__ 
0.545 
0.634 
Total .... 
100.004 
114.504 
Total ... 
100.009 
114.500 
Total solids 114.5 grains per imperial gallon. 
SANITARY ANALYSIS. 
Parts Per Million. 
Total Solids__1,017.140 
Chlorin_ 36.630 
Nitrogen as Nitrates_ 0.400 
Nitrogen as Nitrites_ 0 022 
Parts Per Million. 
Saline Ammonia_ 0 060 
Albuminoidal Ammonia_0.160 
Oxygen consumed_ 1.160 
TABLE XLV.—ANALYSIS OF POUDRE RIVER WATER, 
SAMPLE TAKEN THREE MILES EAST OF 
GREELEY, AUGUST 10, 1902. 
Grs. 
Analytical 
Per 
Imp. 
Results. 
Cent. 
Gal. 
Silicic Acid _ 
1.336 
0.951 
Sulfuric Acid ._ 
42.660 
30.374 
Carbonic Acid__ 
7.144 
5.087 
Chlorin ..... 
3.013 
2.145 
Sodic Oxid 
12.819 
9.117 
Potassic Oxid _ 
0.523 
0.372 
Calcic Oxid. ... _ 
19.785 
14.087 
Magnesic Oxid 
7.854 
5.592 
Ferric and Al. Oxids 
; 0.055 
0.039 
Manganic Oxid.. 
0.110 
0.078 
Ignition . 
5.433 
3 868 
Sum __ 
100.731 
71.710 
Oxygen Eq. to Cl.__ 
0.679 
0.483 
Total.. _ . . 
100.052 
71.227 
Combined. 
Per 
Cent. 
Grs. 
Imp. 
Gal. 
Calcic Sulfate_ . 
48.068 
34.124 
Magnesic Sulfate,__ 
21.621 
15.394 
Magnesic Chlorid.,. 
1.431 
1.019 
Potassic Chlorid.. 
0 827 
0 589 
Sodic Chlorid_ . _ 
2.566 
1827 
Sodic Carbonate.. 
17.227 
12.266 
Sodic Silicate... 
2.710 
1.930 
Ferric and Al. Oxids 
0.055 
0.039 
Manganic Oxid_ 
0.110 
0.078 
Ignition 
5.433 
3.868 
Sum ._ ___ 
100.048 
71.134 
Excess _ 
None 
None 
Total _ . .. 
100.048 
71134 
Total solids, 71.2 grains per imperial gallon. 
SANITARY 
Parts Per Million. 
Total Solids_ _1,635.710 
Chlorin.. 45.550 
Nitrogen as Nitrates_ 0.300 
Nitrogen as Nitrites_ 0.015 
ANALYSIS. 
Parts Per Million. 
Saline Ammonia...0.120 
Albuminoidal Ammonia ... 0.180 
Oxygen consumed_2.127 
