Arkansas Water Quality Standards. Ryan Benefield Deputy Director. Surface Waters Elements Designated Uses Water Quality Criteria Antidegredation Exemptions. Water Quality Standards. Picture Taken From http://www.epa.gov/watertrain/cwa/cwa3.htm. Designated Uses.
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Those uses specified in the water quality standards for each water body or stream segment whether or not they are being attained.
Picture Taken From http://www.epa.gov/watertrain/cwa/cwa7.htm
Can not be an “Existing Use”
Use Attainability Analysis
Irreversible Human Condition
Attainment would cause more harm
Social and Economic Costs
Public Participation Required
EPA Review and Approval
Consistent Scientifically with Designated Uses
Type of Criteria
Materials stimulating algal growth shall not be present in concentrations sufficient to cause objectionable algal densities or other nuisance aquatic vegetation or otherwise impair and designated use of the waterbody
Taken From http://www.epa.gov/watertrain/cwa/slide.htm