BULLETIN 82. 
24 
TABLE X.-ANALYSIS OF SAMPLE OF WATER TAKEN FROM 
WARREN’S LAKE, AUGUST 4, 1902. 
Grs. 
Analytical 
Per 
Imp. 
Results. 
Cent. 
Gal. 
Silicic Acid _ _ 
2.210 
0.407 
Sulfuric Acid. 
30.826 
5.672 
Carbonic Acid.._ 
14.284 
2.628 
Chlorin___ 
3.323 
0.611 
Sodic Oxid__ 
12.327 
2.268 
Potassic Oxid _ 
1.361 
0.250 
Calcic Oxid. _ 
19.672 
3.620 
Magnesic Oxid . _ . 
9.800 
1.803 
Ferric and Alu. Oxids 
1 0.400 
0.074 
Manganic Oxid_ 
0.092 
0.017 
Ignition _ 
6.434 
1.184 
Sum .... 
100.749 
18.534 
Oxygen Equiv. to 
Chlorin _ 
0.749 
0.138 
Total . 
100.000 
18.396 
Grs. 
Per Imp. 
Combined Cent. Gal. 
Calcic Sulfate_ 47.796 8.794 
Magnesic Sulfate_ 4.064 0.748 
Magnesic Carbonate 17.636 3.245 
Potassic Chlorid 2.040 0.375 
Sodic Chlorid_ 3.883 0.714 
Sodic Carbonate_ 12.264 2.257 
Sodic Silicate_ 4.482 0.825 
Ferric and Alu. Oxids 0.400 0.074 
Manganic Oxid_ 0.092 0.017 
Ignition_ 6.434 1.184 
Sum_ 99.191 18.233 
Excess Sodic Oxid__ .818 0.151 
Total_100.009 18.384 
Total solids, 18.4 grains per Imperial gallon. 
SANITARY ANALYSIS. 
Parts Per Million. 
Total solids_262.860 
Chlorin.__„_ 9.900 
Nitrogen as nitrates_ 0.100 
Nitrogen as nitrites_ 0.001 
Parts Per Million. 
Saline ammonia_ 0.180 
Albuminoidal ammonia_ 0.420 
Oxygen consumed_ 4.114 
WINDSOR RESERVOIR. 
§ 44. The capacity of this reservoir is 14,000 acre-feet and 
it is filled by the Larimer & Weld canal with water taken from 
the Poudre below the town of Laporte. The reservoir lies twelve 
miles east and five miles south of the headgate of the ditch. The 
actual length of the ditch through which the water flows is prob¬ 
ably not far from 13.5 miles. The lake was full at the time the 
sample was taken. Its owners began to draw out the water while 
the sample was being taken. I do not know how much seepage 
and drainage water gathers in this reservoir. The higher amount 
of total solids present indicates a considerable accession of such 
waters. Terry lake discharges its water through the same canal 
that fills the Windsor reservoir, but as I understand the matter, 
these two reservoirs belong to different companies, and as both 
reservoirs were full at the time the samples were taken, it is not 
probable that any of the salts held in the water of Windsor lake 
came from Terry lake water, but represent the influence of the 
area from which the lake receives seepage. This, of course, in¬ 
cludes the lake bed itself. 
