Rock Creek Environmental Studies Center

1999 Bronson Creek water quality data

9/30/1999 HydroLab

Bronson Creek Location pH Dissolved Oxygen Concentration Temp. Dissolved Oxygen % Specific Conductivity Salinity Total Dissolved Solids Oxygen Reduction Potential
ppm °C % uS/cm ppt ppm mV
Below Hwy 26 Culvert 6.80 11.47 12.13 107.4 255 0.12 163 333
Wooded Area 6.94 10.97 12.99 104.4 254 0.12 163 312
North Side of Pool 6.81 9.83 13.98 95.9 254 0.12 163 285
Above Footbridge 7.83 16.54 17.39 169.4 241 0.11 155 298
Above Cornell Rd. 6.78 9.51 15.40 99.0 255 0.12 164 179

9/30/1999 LaMotte Kit

Bronson Creek Location pH Dissolved Oxygen Concentration Carbon Dioxide Concentration Silicon Dioxide Concentration Hardness

Ca/Mg/total

 Nitrate Phosphate
ppm ppm ppm ppm
Below Hwy 26 Culvert 7.4 9.3 8 8 68/27/95 <0.2 <0.4
Above Cornell Rd. 8.0 10.0 7 32 73/15/88 <0.2 <0.4

10/14/1999 HydroLab

Bronson Creek Location pH Dissolved Oxygen Concentration Temp. Dissolved Oxygen % Specific Conductivity Salinity Total Dissolved Solids Oxygen Reduction Potential
ppm °C % uS/cm ppt ppm mV
Below Hwy 26 Culvert 6.80 11.43 10.95 104.6 244 0.12 361 156
Wooded Area 6.95 11.28 11.28 102.9 244 0.12 353 156
North Side of Pool 6.91 11.11 11.67 102.2 248 0.12 325 159
Above Footbridge 7.56 15.37 15.29 153.1 244 0.12 317 156
Above Cornell Rd. 6.94 12.44 14.20 121.0 237 0.11 257 153

10/14/1999 LaMotte Kit

Bronson Creek Location pH Dissolved Oxygen Concentration Carbon Dioxide Concentration Silicon Dioxide Concentration Hardness

Ca/Mg/total

 Nitrate Phosphate
ppm ppm ppm ppm
Below Hwy 26 Culvert
Above Cornell Rd.

10/14/1999 HydroLab

Bronson Creek Location pH Dissolved Oxygen Concentration Temp. Dissolved Oxygen % Specific Conductivity Salinity Total Dissolved Solids Oxygen Reduction Potential
ppm °C % uS/cm ppt ppm mV
Laidlaw Rd 6.55 11.26 10.51 104.4 181 0.08 116 461
Kaiser Rd. 6.34 8.91 10.35 79.8 291 0.14 186 435
West Union & Bethany 6.60 9.52 12.50 89.4 250 0.12 160 406