These values were likely reading 0.0NTU and are well within the range of variability of the instrument. Probes were not exposed so these values are likely due to pressure changes and the values deviate from 0.0m. Values replaced with 0.0m since they are within the acceptable range of the instrument. All negative numbers were deleted. These occurred during a real turbidity event, however, I do not know why the instrument logged negative values.
Values are suspect but left in.
Likely caused by changes in atmospheric pressure. Drift is likely the cause. Data were left in but are suspect. Likely caused by changes in atmospheric pressure. All DO data for this time period is suspect.