THE FARM W ATE II SUPPLY 



79 



The table shows the results obtained in the examination of 

 some typical farm wells, selected from the large number of 

 analyses made during the past five years. The last three num- 

 bers are the only ones of their class from which samples have 

 been received ; but they show clearly what can be accomplished 

 by intelligent care of the well's surroundings. 



CONSTITUENTS OF WATERS FROM FARM WELLS. PARTS IN 100,000. 



Locality. 



Remarks. 



Dovers 0018 



Northwood'J .0192 



Weareio 2000 



Lee" 00S2 



Durham's 0024 



Milfordi3 0052 



Raymond'* 0052 



Alsteadi5 OOOO 



Peterborough's. .0025 

 Milfordi' 0014 



Bad. 



Bad. 



Bad. 



Bad. 



Suspicious. 



Suspicious. 



Suspicious. 



Thoroughly ox- 

 idized. 

 Probably safe. 



Good. 



s Well situated near the door of house. Curb of well and embankment to cel- 

 lar are higher than surrounding ground. Water pumped from well to clear 

 the pipe stands in hollow between curb and embankment until it soaks into 

 ground or evaporates. Much of this water probabh' again reaches the well. 



f» Well, 13 feet in depth, 80 feet to privy vault, 80 feet to sink-drain, 70 feet to 

 barn-yard. Soil, a gravelly loam, overlj'ing gravel, blue hard-pan, sand and 

 ledge'. 



10 Well, 18 feet in depth, 50 feet to barn-yard. 



11 Well, 15 feet in depth, 45 feet to barn-cellar, 75 feet to sink drain. 



12 Well, 20 feet in depth, 60 feet to vault, 40 feet to sink drain, 60 feet to barn- 

 yard. Soil, a stiff clay. 



13 Well, 20 feet in depth, 50 feet to vault, 30 feet to sink drain, 50 feet to barn- 

 yard. 



14 Well, 14 feet in depth, 60 feet to vault, 60 feet to sink drain, 75 feet to barn- 

 yard containing a pool of liquid manure. Soil, a gravelly loam with sandy sub- 

 soil. 



15 Well, 24 feet in depth, formerly within 60 feet of vault, 30 feet of sink drain, 

 and 100 feet of barn-yard. All these surroundings have now been removed and 

 the ground scraped clean. The analysis shows a heavy contamination in the 

 past; but now thoroughly transformed into harmless mineral salts. 



i«Well, 20 feet in depth, situated between house and shed. Sink drain and 

 vault have been removed from proximity to well. 



1' Well. 10 feet in depth, 56 feet to vault, which is water-tight; 100 feet to sink 

 drain, which flows over surface of ground; 16 feet from corner of barn-cellar, 

 which is cemented on the bottom and kept dry. A good example of thorough 

 care. 



