40 CFR Table 5 to Subpart DD of Part 63
Tank Control Levels for Tanks at New Affected Sources as Required by 40 CFR 63.685(b)(2)
June 9, 2020
Open Table
| Tank design capacity (cubic meters) | Maximum HAP vapor pressure of off-site material managed in tank (kilopascals) |
Tank control level |
|---|---|---|
| Design capacity less than 38 m3 | Maximum HAP vapor pressure less than 76.6 kPa | Level 1. |
| Design capacity less than 38 m3 | Maximum HAP vapor pressure equal to or greater than 76.6 kPa | Level 2, except that fixed roof tanks equipped with an internal floating roof and tanks equipped with an external floating roof as provided for in §63.685(d)(1) and (2) shall not be used. |
| Design capacity equal to or greater than 38 m3 and less than 151 m3 | Maximum HAP vapor pressure less than 13.1 kPa | Level 1. |
| Maximum HAP vapor pressure equal to or greater than 13.1 kPa | Level 2. | |
| Design capacity equal to or greater than 151 m3 | Maximum HAP vapor pressure less than 0.7 kPa | Level 1. |
| Maximum HAP vapor pressure equal to or greater than 0.7 kPa | Level 2. |
[80 FR 14283, Mar. 18, 2015]
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