Inprocess wastewater
Inprocess wastewater means any water which, during manufacturing or processing, comes into direct contact with vinyl chloride or polyvinyl chloride or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product containing vinyl chloride or polyvinyl chloride but which has not been discharged to a wastewater treatment process or discharged untreated as wastewater. Gasholder seal water is not inprocess wastewater until it is removed from the gasholder.
Source
40 CFR § 61.61
Scoping language
Terms used in this subpart are defined in the Act, in subpart A of this part, or in this section as follows: