(Last Updated October 2005)
Water Class:
Water Class Characteristics or Key Indicator Beneficial Use
Class I:
- Domestic supplies, including springs, on site and/or within 100 feet downstream of the operations area and/or
- Fish always or seasonally present onsite, includes habitat to sustain fish migration and spawning.
Large Class II:
- Watershed is > 100 acres in size.
- Aquatic habitat for nonfish aquatic species.
- Excludes Class III waters that are tributary to Class I waters.
Small Class II:
- Watershed is < 100 acres in size.
- Aquatic habitat for nonfish aquatic species.
- Excludes Class III waters that are tributary to Class I waters.
Class III:
No aquatic life present, watercourse showing evidence of being capable of sediment transport to Class I and II waters under normal high water flow conditions after completion of timber operations.
Class IV:
Man-made watercourses, usually downstream, established domestic, agricultural, hydroelectric supply or other beneficial use.