Columbia, Louisiana
Lat:  32.06.538 N
Long:  92.04.365 W

Site #3 - Samples were taken from the Columbia Bridge which has easy access via a walkway.  The Columbia site indicated a higher nitrate/nitrite sample rate than either Monroe or Sterlington.  This preliminary reading will dictate further sampling between Monroe and Columbia.

Results

Date Time pH Dissolved
Oxygen 
Ammonia Nitrates/Nitrites Sulfates
2/12/05 12:45 PM 7.2 8.8 ppm 1.35 ppm 135.0 ppm 13 ppm
3/13/05 11:30 AM 6.9 8.4 ppm 1.65 ppm 0.204 ppm 14 ppm
4/17/05 11:45 AM 6.8 8.6 ppm 0.92 ppm 0.52 ppm 13 ppm

Excel Spread Sheets (Raw Data)
1.  Nitrates/Nitrites
2.  Phosphates
3.  Comparison


Historical/Graphical Data