A single-compartment or multiple-compartment VOC/water separator that receives effluent water containing 200 gal/d (760 1/d) or more of any VOC from any equipment processing, refining, treating, storing or handling VOCs shall comply with one of the following sets of conditions.
- (1) The container totally encloses the liquid contents and all openings are sealed. All gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place. The oil removal devices shall be gas-tight except when manual skimming, inspection and/or repair is in progress.
- (2) The container is equipped with an external floating roof that consists of a pontoon type or double-deck type cover, or a fixed roof with an internal-floating cover. The cover shall rest on the surface of the contents and be equipped with a closure seal, or seals, to close the space between the cover edge and container wall. All gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place. The oil removal devices shall be gas-tight except when manual skimming, inspection and/or repair is in progress.
- (3) The container is equipped with a vapor-recovery system that consists of a vapor-gathering system capable of collecting the VOC vapors and gases discharged and a vapor-disposal system capable of processing such vapors and gases to prevent their emission to the atmosphere. All tank gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place. The VOC removal devices shall be gas-tight except when manual skimming, inspection and/or repair is in progress.
- (4) The container is approved prior to use by the Division Director and is equipped with controls that have efficiencies equal to the controls listed in 252:100-37-37 (1) through (3).
Amended and renumbered from 252:100-37-17 at 16 Ok Reg 1767, eff 6-11-99