THE NEW ENGLAND STATES. 45 



MAINE. 



ROCKY HILL SPRING. 



Misc. Div. No. 2147. 



Gases. 1 



cc 



Carbon dioxid (free) 7. 20 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 11. 60 



Hydrogen eulphid 00 



Sanitary analysis. 



Parts per million. 



Ammonia, free Trace. 



Ammonia albuminoid , Trace. 



Nitrogen as nitrites 0. 00 



Nitrogen as nitrates 50 



Oxygen required 3. 50 



Bacteriological data : 



Organisms per cc on plain agar after 48 hours at 37 C 



Organisms per cc on neutral red agar after 48 hours at 37 C 



Gas-forming organisms in 5 cc 



Gas-forming organisms in 1 cc 



Gas-forming organisms in 0.1 cc 



Gas forming organisms in 0.01 cc 



Rocky Hill Spring is situated in Fairfield, Somerset County, Me., 

 and is owned and operated by W. N. Osborne. The spring was 

 visited November 16, 1907, samples directly from source being 

 obtained for examination. The flow was approximately 3 gallons 

 per minute, with a temperature of 48 F. Chemical analysis shows 

 this to be a moderately mineralized, calcic, magnesic, bicarbonate water 

 of the alkaline type. The hypothetical combination indicates that 

 approximately 50 per cent of the salts in solution in this water is 

 bicarbonate of lime, with smaller amounts of the bicarbonates of 

 magnesia and soda and about 5 per cent of sodium sulphate. The 

 sanitary analysis shows only traces of organic matter, with a small 

 amount of nitrogen in the form of nitrates, which, with an absence 

 of bacteria, determines the water to be of high organic purity, while 

 inspection of the premises failed to reveal any probable sources of 

 pollution. The advertised analysis made in 1896 agrees fairly well 

 with the analysis made by this bureau, the mineralization having 

 slightly increased, however, since the former analysis was made. 



1 At C. and 760 mm pressure in 1,000 cc of water. 



