REPOR fh WATER ANAL YS -Clrt Or * ees.

 

 

 

 

 

 

 

Laboratory No 395817
Oe East End West End -- Pool
Collected by Ke Ue Athe| Dept.

Date of collection 10=30=39

Date received 10-30-39

Analysis completed__ i 11-1-39

 

 

BACTERIAL EXAMINATION *

Bacteria per cc. on

 

Rear, at 57 24 bes. 2,000 1,800
Presumptive Tests for Coli-Aerogenes Group + +
Results of Fermentation Tests:

in 5 10 cc. tubes 5+ 5+

in 3 1 cc. tubes. ot St

 

 

in 3.1 cc. tubes
in 3 .01 cc. tubes
in 3 .001 cc. tubes
Confirmatory Tests for Coli-Aerogenes Group ++ ++

 

 

 

 

CHEMICAL ANALYSIS
Results in parts per. million.
Color
Odor
Turbidity ad a 4 under 1 - “ounder 1
5 day B. O. D. sete st Eta ee ee —
Nitrogen as Nitrites i
Nitrogen as Nitrates
Solids, total_.

Special

 

 

 

 

 

 

 

Speci al

 

MINERAL ANALYSIS
HCO, (Bicarbonate) 28 30
CO, (Carbonate)
OH (Hydroxide) :
Cl (Chlorides) 189
Fe (Iron) : w= Tepe
Special

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* 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.