THE NEW ENGLAND STATES. 67 



MASSACHUSETTS. 



BBLMONT HILL SPRINQ. 



Misc. Div. No. 4847. 



Gases. l 



cc 



Carbon dioxid (free) 11.2 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 7. 8 



Hydrogen sulphid , 



Sanitary analysis. 



Parts per million. 



Ammonia, free 0. 040 



Ammonia albuminoid 034 



Nitrogen as nitrites . 000 



Nitrogen as nitrates 17. 000 



Oxygen required . 100 



Bacteriological data: 



Organisms per cc on plain agar after 48 hours at 37 C 170 



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



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 



Belmont Hill Spring is situated at Everett, Mass., and is owned 

 and operated by the Belmont Hill Spring Water Co. It was visited 

 November 30, 1907, samples directly from source being obtained for 

 the examination. The flow was approximately 5 gallons per minute, 

 with a temperature of 52 F. The chemical analysis shows this to 

 be a highly mineralized, calcic, sodic, bicarbonated, nitrated, sul- 

 phated water of the alkaline-saline type. The hypothetical combi- 

 nation indicates that of the salts in solution approximately 23 per 

 cent are present as bicarbonate of calcium, 35 per cent as sodium 

 nitrate, 18 per cent as calcium sulphate, and 16 per cent as chlorid 

 and nitrate of magnesium. The sanitary analysis shows the presence 

 of free and albuminoid ammonia, a large amount of nitrates, and the 

 presence of gas-forming organisms in 1-cc quantity. The advertised 

 analysis differs materially from that made in this bureau, the greatest 

 difference being in the content of magnesium, potassium, and nitrates. 



1 At C. and 700 mm pressure in 1,000 cc of water. 



