Show IMPORTANT FACTORS IN LOCATING WELLS FEELS Carefully Avoid Close Proximity to So Source of Pollution Water Carrying Germs of Infection Is Cause of Typhoid Fever Tuberculosis losis and Other Ailments Aliments Some Safeguards Prepared by the United Stat States s Department Department Depart Depart- ment meat of Agriculture Convenience and first cost not cost not sanitary sani- sani tary safety safety havE have been the deciding factors In locating r thousands of farm wells On the average three out o of four w wells are within 75 feet of the back door of the house and In the dl di of the barn Close proximity to barnyards pigpens pigpens pig pJ- pens sink drains out buildings and other sources of pollution seriously Impairs Im- Im impairs pairs the water supply makes It unsafe unsafe un un- safe and destructive e to health Typhoid Ty Ty- Ty fever tuberculosis hookworm disease cholera dysentery and diarrhea diar- diar rhea rhen are afe among the ailments aliments caused or Influenced by contaminated water and maladies such as ns hog cholera anthrax and mouth foot disease of livestock live livestock stock have been traced to water which carries the germs of Infection Wells cannot be located In all nil cases so that there may not be some pollution pollution tion but hut the great safeguards are clean ground and as wide separation as possible pos possible pos pos- sible from the probable channels of any nay Impure drainage It Is Ig not enough that a n welt well or spring be 50 or feet from a source of filth or merely merel upon higher ground although even moderate remoteness and elevation of the source of supply are desirable Given GI porous or gravelly ground seamy ledge or long continued pollution of one pint plat of land the zone of or contamInatIon contamination Is likely to extend long distances distances dis dis- particularly In downhill directions directions directions and at such times as water supplies sup sup supplies plies piles are lowered by drought or heavy pumping Only when the surface of ot the water In a well or spring Is actually actually actu actu- ally at a higher level at all ail times than any near near-b near near-by source of filth Is there positive positive pos pos pos- e assurance of safety |