PERIOD+7+STATION+3

= PERIOD 7 STATION 3 = = =


 * pH--> 7
 * Temperature --> 13 degrees celsius
 * Salinity --> 23
 * Specific Gravity --> 1.017

__CHEMICAL TEST: DARK__
 * 16 drops of sodium thiosfulate until solution turned light yellow
 * .84 mL left in dropper of sodium thiosfulate
 * THEREFORE--> 2.6 ppm of sodium thiosfulate used to titrate dark bluish purple to clear

__CHEMICAL TEST: LIGHT__ THEREFORE--> 2.8 ppm of sodium thiosulfate used to titrate dark bluish purple to clear
 * 8 drops of sodium thiosulfate until solution turned light yellow
 * .82 mL left in dropper of sodium thiosulfate

B.O.D. = .2 ppm

Second Trip:
 * pH---> 6
 * Temperature --> 11 degrees celsius
 * Salinity ---> 24
 * Specific Gravity --->1.020

__CHEMICAL TEST: DARK__
 * 17 drops of sodium thiosulfate until solution turned yellow
 * .85 mL left in dropper of sodium thiosulfate
 * THEREFORE--> 2.5 ppm of sodium thiosulfate used to titrate dark bluish purple to clear

__CHEMICAL TEST: LIGHT__
 * 9 drops of sodium thiosulfate until solution turned light yellow
 * .83 mL left in dropper of sodium thiosulfate
 * THEREFORE---> 2.8 ppm of sodium thiosulfate used to titrate dark bluish purple to clear

B.O.D.= .3 ppm

OH WOW!