Lake July 14, 1997

Ambient Conditions:

pH=8.0
Oxygen=12ppm (middle of day)
Salinity=31.5 p/thousand
Temp at surface=28° C
Temp at 3’=26° C
Temp at 6’=25° C
Fecal coliform=0
Nitrate sample #1=0.4
Nitrate sample #2=0.9
Hydrogen Sulfide in water column= zero
Hydrogen Sulfide in mud=3ppm
Phospate=29(average)

The above data is typical.  Similar data taken by George Washington University is available for previous years in hand written format.