Or. Admin. R. 340-041-0031 - Total Dissolved Gas
Current through Register Vol. 60, No. 12, December 1, 2021
(1)
Waters will be free from dissolved gases, such as carbon dioxide hydrogen
sulfide, or other gases, in sufficient quantities to cause objectionable odors
or to be deleterious to fish or other aquatic life, navigation, recreation, or
other reasonable uses made of such water.
(2) Except when stream flow exceeds the
ten-year, seven-day average flood, the concentration of total dissolved gas
relative to atmospheric pressure at the point of sample collection may not
exceed 110 percent of saturation. However, in hatchery-receiving waters and
other waters of less than two feet in depth, the concentration of total
dissolved gas relative to atmospheric pressure at the point of sample
collection may not exceed 105 percent of saturation.
Notes
Stat. Auth.: ORS 468.020, 468B.030, 468B.035 & 468B.048
Stats. Implemented: ORS 468B.030, 468B.035 & 468B.048
The following state regulations pages link to this page.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.