THE NEW ENGLAND STATES. 81 



MASSACHUSETTS. 



XOB8COT MOUNTAIN SPRING. 



Misc. Div. No. 4711. 



Gases. 1 



cc 



Carbon dioxid (free) 8. 4 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 3. 9 



Hydrogen sulphid 



Sanitary analysis. 



Parts per million. 



Ammonia, free ' Trace. 



Ammonia albuminoid 0. 038 



Nitrogen as nitrites Ft. tr. 



Nitrogen as nitrates 125 



Oxygen required 190 



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 ^ - 



Nobscot Mountain Spring is situated near Framingham, Mass., 

 and is owned and operated by the Nobscot Mountain Spring Co. 

 It was visited December 1, 1907, samples directly from source being 

 obtained for the examination. The flow was approximately 1,000 

 gallons per hour, with a temperature of 49 F. Chemical analysis 

 shows this to be a lightly mineralized, calcic, sodic, bicarbonated water 

 of the alkaline type. The hypothetical combination indicates that 

 approximately 52 per cent of the salts in solution are in the form of 

 the bicarbonates of calcium, magnesium, and sodium, with 10 per 

 cent of sodium sulphate and 5 per cent of sodium chlorid. Sanitary 

 analysis shows a small amount of albuminoid ammonia, faint traces 

 of nitrities, low nitrites, and an absence of bacteria, which indicates 

 organic purity. Inspection of the premises failed to reveal any prob- 

 able source of pollution. The advertised analysis made in 1891 agrees 

 very well with the analysis made by this bureau. 



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

 84644 Bull. 13911 6 



