REPORT OF WATER ANALYSIS—CITY OF... er POU eee a

 

 

 

 

 

 

 

Laboratory No. 421606

Source Bast End Nest End
Collected by. Kissell

ee ee eee 4—16=-42

Date received 4-16-42

Analysis completed____.. 4-13-42

 

BACTERIAL EXAMINATION *

Bacteria per cc. on
Agot, at 37-24 Gs.

Presumptive Tests for Coli-Aerogenes Group ~

Results of Fermentation Tests:
in 5 10 cc. tubes 5=
in 3. 1 cc. tubes 3=
in 3.1 cc. tubes | o=
in 3.01 cc. tubes
a> - Wren eee

Confirmatory Tests for Coli-Aerogenes Group

oO
71

 

 

wa oi
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CHEMICAL ANALYSIS
Results in parts per million.

Color. es
Odor. oe

Turbidity under 1 under 1
5 day B.O. D.
Nitrogen as Nitrites
Nitrogen as Nitrates
Solids, total fy
Special

Speci Boca ee un re ee

 

 

 

 

 

 

 

 

 

MINERAL ANALYSIS
HCO, (Bicarbonate) hes
CO, (Carbonate)
OH (Hydroxide)
Cl (Chlorides)
Fe (Iron)

Special
zg

38 34.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Gas in the fermentation tubes and confirmatory test indicate the presence of bacterial organisms of the Coli-Aerogenes group. These
organisms inhabit the intestinal tract of warm-blooded animals, hence their presence in water shows sewage contamination or pollution
from surface drainage. Plus sign, gas present. Minus sign, gas absent.

One part per million is equivalent to 1 pound of substance per million pounds of water. One gallon weighs 8.33 pounds. 17.1 parts
per million=1 grain per gallon.