THE NEW ENGLAND STATES. 39 



MAINE. 



OAK GROVE SPRING. 



Misc. Div. No. 2148. 



Gases. l 



CO 



Carbon dioxid (free) 9. 



Carbon dioxid (set free from bicarbonate upon evaporating to dryness) 13. 4 



Hydrogen sulphid 



3 







Sanitary analysis. ' 



Parts per million. 



Ammonia, free Trace. 



Ammonia albuminoid Trace. 



Nitrogen as nitrites Ft. tr. 



Nitrogen as nitrates 1.2 



Oxygen required 4. 



Bacteriological data: 



Organisms per cc on plain agar after 48 hours at 37 C 70. 



Organisms per cc on neutral red agar after 48 hours at 37 C ' 11. 



Gas-forming organisms in 5 cc 



Gas-forming organisms in 1 cc -f 



Gas-forming organisms in 0.1 cc 



Gas-forming organisms in 0.01 cc 



Oak Grove Spring is located at Brewer, Penobscot County, Me., 

 and is owned and operated by E. H. Homestead. This spring was 

 visited November 15, 1907, and samples directly from source were 

 obtained for examination. The flow was approximately 150 gallons 

 per hour, the temperature being 48 F. Chemical analysis shows 

 this to be a moderately mineralized, calcic, bicarbonated water of the 

 alkaline type. The hypothetical combination indicates that approxi- 

 mately 70 per cent of the salts in solution are in the form of the 

 bicarbonates of calcium and magnesium, with 5 per cent of potas- 

 sium sulphate, 6 per cent of sodium chlorid, and 5 per cent of sodium 

 sulphate. The sanitary analysis shows traces of ammonia, faint 

 traces of nitrites, and a small amount of nitrates. The bacterial 

 count is low; gas-forming organisms are found in 1 cc of water. 

 Inspection of the premises failed to reveal any probable sources of 

 pollution. No previous analysis of this water could be obtained for 

 purposes of comparison. 



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



