Notes: "Delta Tox II Toxicity" refers to a test that checks how toxic a water sample is using a system called Delta Tox II. This system works by measuring how much light is produced by special glowing bacteria after they are exposed to the sample being tested. If the bacteria produce less light than expected, it means the sample may be toxic — the lower the light, the more harmful the sample is to the bacteria. On the other hand, if they produce more light, it might suggest the sample is stimulating the growth of the bacteria. So, in simple terms: A decrease in light = possible harm to the bacteria (toxicity); An increase in light = possible stimulation of the bacteria
West Branch Delaware River Monitoring Event Graph

This bar graph reports the raw data for each location that was sampled as part of the monitoring event conducted on this date. To view results for individual water quality indicators, click-off other indicators in the legend at the bottom of the graph.

Event Results

Scroll down to view the event results for each monitoring location.

Location Analyte Value Units Remarks Location
West Branch Hale Eddy
(WBHE)
Total Phosphorus (as P) 8.69 ug/L Lab
Temperature 3.0 C Field
Specific Conductance 105.0 uS/cm Lab
Nitrate-+Nitrite-Nitrogen (as N) 0.33 mg/L Lab
Manganese 0.0769 mg/L Lab
Iron 0.0859 mg/L Lab
Hydrogen Ion (pH) 6.91 Unitless (negative logarithm of H ion concentration) Not Certifiable Lab
Dissolved Oxygen 14.2 mg/L Not Certifiable Lab
Delta Tox II Toxicity -8.0 % Light Change Loss; Not Certifiable Lab
Chlorophyll 2.53 ug/L Not Certifiable Lab
West Branch Stilesville
(WBS)
Total Phosphorus (as P) 9.31 ug/L Lab
Temperature 4.0 C Field
Specific Conductance 84.9 uS/cm Lab
Nitrate-+Nitrite-Nitrogen (as N) 0.32 mg/L Lab
Manganese 0.021 mg/L Lab
Iron 0.04 mg/L non-detect Lab
Hydrogen Ion (pH) 6.87 Unitless (negative logarithm of H ion concentration) Not Certifiable Lab
Dissolved Oxygen 16.5 mg/L Not Certifiable Lab
Delta Tox II Toxicity -3.0 % Light Change Loss; Not Certifiable Lab
Chlorophyll 4.59 ug/L Not Certifiable Lab