Dissolved oxygen criteria ( minimum required levels) varies depending on the designated aquatic uses for the stream.
HQ-CWF- Most stringent- Minimum DO is 7.0 mg/l anytime during the year
TSF- From February 1 to July 31, Minimum daily average of 6.0 mg/l; minimum of 5.0 mg/l
HQ-TSF- Minimum daily average 6.0 mg/l; minimum 5.0 mg/l
WWF- Least stringent- Minimum daily average is 5.0 mg/l; minimum 4.0 mg/l.