CHAPTER XX. 



SEWAGE DISPOSAL. 



To secure a high degree of sanitation in and about 

 the creamery it is necessary to see that proper disposal 

 is made of the sewage from both the creamery and the 

 dwelHng of the buttermaker. Where the latter is situated 

 close to the creamery its surroundings may do about as 

 much harm as those of the creamery itself. 



With open privies and the careless dumping of kitchen 

 slops near the dwelling, we have a double means of en- 

 dangering the creamery. If the ground near the dwelling 

 and privy slopes in the direction of the water supply, the 

 latter is likely to become contaminated through seepage in 

 the manner indicated in Fig. 69. In addition to this there 

 is the danger of flies carrying various kinds of bacteria 

 from these places to the creamery. Flies not only carry 

 the obnoxious, putrefactive species, but too often also 

 the deadly pathogenic kinds, such as cause typhoid fever, 

 to say nothing of the offensive excrementitious matter 

 conveyed in this manner. 



Obviously the accumulation of sewage about the cream- 

 ery itself is attended by even greater dangers than those 

 arising from the unsanitary surroundings of the dwelling. 

 Moreover there is certain to be trouble also from bad 

 odors. 



SEPTIC TANK. 



The best means of taking care of the sewage from 



188 



