Indiana Administrative Code
Title 327 - WATER POLLUTION CONTROL DIVISION
Article 5 - INDUSTRIAL WASTEWATER PRETREATMENT PROGRAMS AND NPDES
Rule 1.5 - Definitions
Section 1.5-4 - "Ambient upstream concentration" defined
Universal Citation: 327 IN Admin Code 1.5-4
Current through September 18, 2024
Authority: IC 13-14-8; IC 13-14-9; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3
Affected: IC 13-11-2; IC 13-18-4
Sec. 4.
"Ambient upstream concentration" means the concentration of a substance occurring immediately upstream of the point of discharge, which is present, or likely to be present, in the absence of upstream point source contributions.
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