4. The primary justification for bioassessment and monitoring is that degradation of water body habitats affects the biota using those habitats; therefore, the living organisms themselves provide the most direct means of assessing real environmental impacts. True False
5. When collecting water samples with a collecting device, rinse the sampler with distilled water to limit cross-contamination, then rinse the sampler three times with sample water to ensure a representative sample. True False Rationale: The distilled water rinse is used to remove any electrical charge from the atoms and molecules that are in the water that may be left in the container before using it to collect the sample water. Following that rinse, the collection device is rinse in the sample water to which will allow for all of the distilled water that remains to be mixed with the sample water. This should ensure that there are no outside contaminants within the water sample. 6. Calibration is of primary importance when sampling water quality with handheld meters; in general, calibration should be performed every six months at a minimum.
- Fall '15