TREPA: Water Quality data from the Tusket Catchment

The deepest point in each water body is targeted for monitoring. A YSI Professional Plus was used to record temperature, conductivity, salinity, turbidity, pH, and oxygen at .25 meters below the surface and at every succeeding meter of depth up to 10 m., or one meter from the bottom, which ever came first. Samples from deeper stations involved collecting at 1 meter of bottom with a Van Dorn sampler and taking measurements from the fresh sample in the sampler. Sampling was conducted the first half of May, the second half of August, and the second half of October. The probe was calibrated for all parameters the night preceding each sampling season, except for dissolved oxygen, which was calibrated daily. Samples were also collected for laboratory analyses at the AGAt and QEII labs. Parameters measured included Chlorophyll-a (Sent out), colour, total phosphorus, orthophosphate, total nitrogen, nitrate-nitrite, turbidity, and alkalinity.