COLORADO IRRIGATION WATERS AND THEIR CHANGES. 23, 
TABLE IX—ANALYSIS OF SAMPLE OF WATER TAKEN FROM 
LONG POND AUGUST 1, 1902. 
Grs. 
Grs.. 
Analytical 
Per 
Imp. 
Combined. 
Per 
Imp. 
Results. 
Cent. 
Gal. 
Cent. 
Gal. 
Silicic Acid_ 
. 1.459 
0.382 
Calcic Sulfate__ 
39.401 
10.323 
Sulfuric Acid__ 
. 44.013 
11.531 
Magnesic Sulfate.. 
30.177 
7.906 
Carbonic Acid_ 
. 6.653 
1.743 
Potassic Sulfat6_. 
1.476 
0.387 
Chlorin_ . _ 
. 1.494 
0.391 
Sodic Sulfate. . 
0.128 
0.034 
Sodic Oxid_ 
_ 12.816 
3.358 
Sodic Chlorid . 
2.465 
0.646 
Potassic Oxid_ 
. 0.799 
0.209 
Sodic Carbonate. 
16.042 
4.203 
Calcic Oxid 
_ 16.217 
4.249 
Sodic Silicate.. 
2.959 
0.775 
Magnesic Oxid ... 
. 10.104 
2.647 
Ferric and Alu. Oxids 0.225 
0.059 
Ferric and Alu. Oxids 0.225 
0.059 
Manganic Oxid 
Trace 
Trace 
Manganic Oxid. . 
Trace 
Trace 
Ignition . __ . 
6.934 
1.817 
Ignition_ 
_ 6.934 
1.817 
Sum_ . 
99.807 
26.150 
Sum___ 
.100.714 
26.386 
Excess Sodic Oxid. 
0.570 
0.149 
Oxygen equiv. to 
Chlorin 
. 0.336 
0.088 
Total 
100.377 
26.299 
Total_ 
.100.378 
26.298 
Total solids, 26.2 grains per Imperial gallon. 
SANITARY 
Parts Per Million. 
Total Solids_374.290 
Chlorin_ 7.070 
Nitrogen as Nitrates_Trace 
Nitrogen as Nitrites_None 
ANALYSIS. 
Parts Per Million . 
Saline Ammonia_ 0.050 
Albuminoidal Ammonia_0.280 
Oxygen consumed_ 3.296 
WARREN’S LAKE. 
§ 43. Warren’s lake lies six miles due south of Long pond, 
and is filled from Larimer County No. 2 ditch, receiving a small 
amount of seepage and waste water. The distance from the head- 
gate of the ditch to the reservoir is about eight miles. The 
sample was taken near the gate. Depth of water, ten feet. 
