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Page 1: Bact Tanks PV

7/24/2019 Bact Tanks PV

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TCEQ – (APDG 6298, Revised 06/15)This information is maintained by the Chemical NSR Section and is subject to change.Page 1 of 1 

TCEQ Chemical Sources

Current Best Available Control Technology (BACT) Guidelines

Storage Tanks

This information is maintained by the Chemical NSR Section and is subject to change. Last update 06/2015.

 Year Source Type Pollutant Minimum Acceptable Control Control Efficiency or Details

2015 AtmosphericStorage Tanks

Tank capacity< 25 MgalorTVP < 0.50 psia

Fixed roof with submerged fill. White or aluminumuninsulated exterior surfaces exposed to the sun.

Tank Capacity≥ 25 Mgal and

0.50 psia < TVP< 11.0 psia

Internal floating roof (IFR). White or aluminumuninsulated exterior surfaces exposed to the sun.

 Alternative 1: Primary seal: mechanical orliquid mounted

 Alternative 2: Primary seal: vapor mounted

and Secondary seal: rim mounted

Drain dry design (new tanks only)

External floating roof (EFR). White or aluminumuninsulated exterior surfaces exposed to the sun.Slotted guide pole fittings must have gasketed cover,and at least 2 of the following – wiper, float, or sleeve.

Primary seal: mechanical or liquid mounted,and Secondary seal: rim mounted

Drain dry design (new tanks only)

 Vent to control Appropriate control device efficiency

Tank Capacity≥ 25 Mgal 

andTVP ≥ 11.0 psia 

 Vent to control Appropriate control device efficiency