BULLETIN 82. 
14 
TABLE IV.-ANALYSIS OF CACHE A LA POUDRE WATER, 
SAMPLE TAKEN FROM FAUCET IN CHEMICAL 
LABORATORY, MAY 23, 1897. 
Grs. 
Analytical Per Imp. 
Results. Cent. Gal. 
Silicic Acid_ 36.180 1.664 
Sulfuric Acid_ 5.180 0.238 
Carbonic Acid_ 20.860 0.960 
Chlorin_Trace Trace 
Sodic Oxid_ 8.000 0.368 
Calcic Oxid_ 15.960 0.734 
Magnesic Oxid _ 5.060 0.233 
Ferric and Alu. Oxids 2.290 0.105 
Manganic Oxid_Trace Trace 
Ignition_ 6.470 0.298 
Sum_100.000 4.600 
Oxygen Equiv. to 
Chlorin_ Trace. 
Grs. 
Per 
Imp. 
Combined. 
Cent. 
Gal. 
Calcic Sulfate _ 
8.800 
0.405 
Calcic Carbonate.. 
22.000 
1.012 
Magnesic Carbonate 
10.580 
0.487 
Sodic Carbonate 
13.680 
0.629 
Ferric and Alu. Oxids 
2.290 
0.105 
Manganic Oxid.. _ 
Trace Trace 
Ignition 
6.470 
0.298 
Silicic Acid 
36.180 
1.664 
Total . _ 
100.000 
4.600 
Total_100.000 4.600 
Total solids, 4.60 grains per Imperial gallon. 
Saline Ammonia, 0.00740 parts per million. 
Albuminoidal Ammonia, 0.00280 parts per million. 
TABLE V.—SAMPLE TAKEN FROM FAUCET IN CHEMICAL 
LABORATORY, SEPT. 21, 1900. 
Grs. 
Analytical 
Per 
Imp. 
Results. 
Cent. 
Gal. 
Silicic Acid_ 
8.050 
0.596 
Sulfuric Acid_ 
15.392 
1.139 
Carbonic Acid 
22.905 
1.695 
Chlorin ..._ . 
2.248 
0.166 
Sodic Oxid ... _ 
8.095 
0.599 
Potassic Oxid_ 
0.886 
0.065 
Calcic Oxid. _ 
29.067 
2.151 
Magnesic Oxid_ 
7.750 
0.573 
Ferric and Alu. Oxids 
; 0.317 
0.023 
Manganic Oxid_ 
. 0.050 
0.004 
Ignition .. .... . 
5.884 
0.435 
Sum__ . 
100.644 
7.446 
Oxygen Equiv. to 
Chlorin . _ __ 
0.506 
0.037 
Total ..._ 
100.138 
7.409 
Grs. 
Per 
Imp. 
Combined. 
Cent. 
Gal. 
Calcic Sulfate __ 
27.174 
1.937 
Calcic Carbonate.. 
32.631 
2.415 
Magnesic Carbonate 
16.272 
1.204 
Potassic Chlorid_ 
1.402 
0.104 
Sodic Chlorid 
2.611 
0.193 
Sodic Carbonate . 
0.089 
0.006 
Sodic Silicate ... _ 
13.116 
0.971 
Ferric and Alu. Oxids 
0.317 
0.023 
Manganic Oxid.. 
0.050 
0.004 
Ignition 
5.884 
0.435 
Sum 
98.546 
7.292 
Excess Silicic Acid 
1.591 
0.118 
Total_ _ _ 
100.137 
7.410 
Total solids, 7.4 grains per imperial gallon. 
SANITARY ANALYSIS. 
Parts Per Million. 
Total Solids_198.5000 
Chlorin __ _ 5.7100 
Nitrogen as Nitrates_ 0.0400 
Nitrogen as Nitrites _ 0.0010 
Parts Per Million. 
Saline Ammonia_- 0.0250 
Albuminoidal Ammonia... 0.0571 
Oxygen Consumed_ 1.5450 
