THE NEW ENGLAND STATES. 87 



MASSACHUSETTS. 



SIMPSON SPRING}. 



Misc. Div. No. 4710. 



Gases. 1 



cc 



Carbon dioxid (free) 8. 4 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 2. 7 



Hydrogen sulphid ' 



Sanitary analysis. 



Parts per million. 



Ammonia, free Trace. 



Ammonia albuminoid 0. 075 



Nitrogen as nitrites 000 



Nitrogen as nitrates 500 



Oxygen required 160 



Bacteriological data: 



Organisms per cc on plain agar after 48 hours at 37 C 1 



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 



Simpson Spring is situated at South Easton, Mass., and is owned 

 and operated by the Simpson Spring Water Co. It was visited 

 December 3, 1907, samples directly from source being obtained for 

 the examination. The flow was approximately 10 gallons per min- 

 ute, with a temperature of 49 F. Chemical analysis shows this to 

 be a lightly mineralized, sodic, calcic, bicarbonated, muriated, sul- 

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

 bination indicates that approximately 43 per cent of the salts in 

 solution are in the form of the bicarbonates of calcium, magnesium, 

 and sodium, with 19 per cent of chlorid of sodium, and 16 per cent of 

 sulphate of sodium. The sanitary analysis shows small amounts of 

 albuminoid ammonia and nitrates and a low bacterial count, which 

 indicates organic purity. Inspection of the premises failed to reveal 

 any probable sources of pollution. The advertised chemical analysis 

 is incomplete and is of no value for purposes of comparison. 



i At C. and 760 mm pressure in 100 cc of water. 



