40 CFR Part 63, Table 4
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
As required in § 63.8020, you must meet each emission limit and work practice standard in the following table that applies to your wastewater streams.
| For each . . . | You must . . . |
|---|---|
| 1. Wastewater tank used to store a Group 1 wastewater stream | Maintain a fixed roof, which may have openings necessary for proper venting of the tank, such as pressure/vacuum vent or j-pipe vent. |
| 2. Group 1 wastewater stream | a. Convey using hard-piping and treat the wastewater as a hazardous waste in accordance with 40 CFR part 264, 265, or 266 either onsite or offsite; or |
| b. If the wastewater contains <50 ppmw of partially soluble HAP, you may elect to treat the wastewater in an enhanced biological treatment system that is located either onsite or offsite. |