Section 3745-256-32 - Process vents - air emission standards for process vents(A) The owner or operator of a facility with process vents associated with distillation, fractionation, thin-film evaporation, solvent extraction or air or steam stripping operations managing hazardous wastes with organic concentrations at least ten parts per million by weight shall either: (1) Reduce total organic emissions from all affected process vents at the facility below 1.4 kilograms per hour (kg/h) [three pounds per hour (lb/h)] and 2.8 megagrams per year (Mg/yr) [3.1 ton per year (tons/yr)]; or(2) Reduce, by use of a control device, total organic emissions from all affected process vents at the facility by ninety-five weight per cent.(B) If the owner or operator installs a closed-vent system and control device to comply with paragraph (A) of this rule, the closed-vent system and control device shall meet the requirements of rule 3745-256-33 of the Administrative Code.(C) Determinations of vent emissions and emission reductions or total organic compound concentrations achieved by add-on control devices may be based on engineering calculations or performance tests. If performance tests are used to determine vent emissions, emission reductions, or total organic compound concentrations achieved by add-on control devices, the performance tests shall conform with the requirements of paragraph (C) of rule 3745-256-34 of the Administrative Code.(D) When an owner or operator and the director do not agree on determinations of vent emissions or emission reductions or total organic compound concentrations achieved by add-on control devices based on engineering calculations, the test methods in paragraph (C) of rule 3745-256-34 of the Administrative Code shall be used to resolve the disagreement.Ohio Admin. Code 3745-256-32
Effective: 6/12/2023
Five Year Review (FYR) Dates: Exempt
Promulgated Under: 119.03
Statutory Authority: 3734.12
Rule Amplifies: 3734.12