22 BULLETIN 583, U. S. DEPARTMENT OF AGRICULTURE. 
The water system at the first site was used for a period of 311 days. 
Charging off the entire cost of the well and the labor of installation 
in that time, and computing the cost of these two items in proportion 
to time the total and per capita costs of the water used during the 
first six months, or 183 days, of operation are given in Table 8. 
TaBLE 8.—Total and per capita cost of water supply from January 10 to July 10, 1916, 
Fulton County, Ga., Experimental Convict Camp. 
Proportion ‘of costiof welle2. ig 2528 oe ee eee ee oe ee ee aa $23. 48 
Depreciation of gasoline engine and belt................-----.-----------.-- 8. 03 
Depreciationiofair pump and-outht.2h5-ch2 Gs: Pe oe eee eee 25. 00 
Depreciation,of pipincand, fixtures... 55. 52.- 22 teases eee eee a eee 4. 93 
ihubricating oils 12 callonssat-40 cents: 5932-26-52 2- 4 ese ees ee tee eee 4. 80 
*Cupereise, 10 pounds. 2c 4cc 2c cee ens ee ae gee at eee cin meee . 87 
Gasclines LOteallons at 21 Cents came -e ee nae Shee eee Sure Laer 44.10 
Proportion ‘of costiotanstal lation 2. 34 22 2 ee es Pee ee 21. 64 
Total cost for six months. ......-.--.--.----- Cite Bae aE ate EL y UE Cale See a 122. 85 
Total number of convict calendar days from Jan. 10 to July 10, 1916...-.-.-.. 7, 174 
Cost of water supply per convict per calendar day...........--.------------ $0. 0171 
SEWAGE DISPOSAL. 
The plan of sewage disposal recommended by the Federal bureaus 
was that of sanitary privies for the temporary reception of the wastes, 
and ultimate shallow burial. Comparatively few convict camps are 
able to dispose of their sewage by means other than privies; but a 
truly sanitary privy is found rarely, and the method of its operation 
is not generally understood. The methods employed in the tempo- 
rary camps and those somewhat removed from the larger centers of 
population usually are particularly primitive and the sanitary con- 
ditions especially bad. It was hoped the demonstration at the 
experimental camp would be of most service to these classes of camps. 
But on account of past disagreeable experiences with poorly kept 
privies the county commissioners had decided to use flush toilets in 
all county camps, and deferring to their objection to the recom- 
mended method it was agreed to install flush toilets and a cesspool. 
The cesspool was excavated at a point 100 yards from the main 
camp buildings and well, at an elevation 25 feet below them and on a 
slope leading away from the camp. It was covered with boards 
over which several inches of earth was spread. As the location was 
sufficiently removed from dwellings and potable water supplies the 
pit was left unlined so that its contents might seep into the ground. 
Its dimensions were 12 feet in width, 20 feet in length, and 10 feet in 
depth; and into it were piped the wastes of the kitchen, lavatory, 
shower bath, and water-closets, amounting to fully 600 gallons per 
day. This large discharge was cared for successfully until the 1st 
day of June, when the pit was filled to overflowing. From that time 
until the convicts were transferred to the fair grounds there was a 
slight overflow every day. As the effluent flowed away from the camp 
