BAY AREA AIR QUALITY MANAGEMENT DISTRICT
Best Available Control Technology (BACT) Guideline

Source Category

Source: Hot MIx Asphalt, Drum Mix Facilities Revision: 1
Document #: 10A.1
Class: All Date: 03/06/01

Determination

POLLUTANT

BACT
1. Technologically Feasible/ Cost Effective
2. Achieved in Practice
TYPICAL TECHNOLOGY
POC 1. Afterburner w/ >0.3 sec. retention time at >1400oFa,T
2. n/s
1. BAAQMD Approved Design and Operationa
2. Good Combustion Practicea
NOx 1. n/d
2. 12 ppmv @15% O2 Dry a,b,c
1. n/d
2. Natural Gas + Low NOx Combustion System a,b,c
SO2 1. n/d
2. Natural gas a,b,c
1. n/d
2. Fuel Selection a,b,c
CO 1. n/d
2. 133 ppmv @ 15% O2 Dry a,b,c
1. n/d
2. Good Combustion Practicea,c
PM10 1. n/d
2. <0.01 gr/dscf a,T
1. n/d
2. Baghousea,T
NPOC 1. n/a
2. n/a
1. n/a
2. n/a

References

a. BAAQMD
b. BACT is 12 ppmvd NOx @ 15% O2 and 265 ppmvd CO @ 15% O2 regardless of fuel. However, for special situations such as temporary operations and/or remote locations where natural gas is not available, liquefied petroleum gas or fuel oil < 0.05 wt. % sulfur may be permitted to emit at higher levels as specified below:
1). "Temporary operations" using exclusively liquefied petroleum gas shall not remain at any single plant for a period in excess of 12 consecutive months, following the date of initial operation, and may be permitted up to 38 ppmvd NOx @ 15% O
2and 265 ppmvd CO @ 15% O2. [Basis: Monterey Bay Unitied APCD A/C #10287]
2). "Temporary operations" using exclusively fuel oil < 0.05 wt. % sulfur shall not remain at any single plant for a period in excess of 3 consecutive months, following the date of initial operation, and may be permitted up to 55 ppmvd NOx @ 15% O
2 and 265 ppmvd CO @ 15% O2.[Basis: Reference a. above]
3). For remote locations where natural gas is not available, liquefied petroleum gas may be permitted up to 38 ppmvd NOx @ 15% O
2 and 265 ppmvd CO @ 15% O2 and fuel oil < 0.05 wt. % sulfur may be permitted up to 55 ppmvd NOx @ 15% O2 and 265 ppmvd CO @ 15% O2. [Basis: Monterey Bay APCD A/C #10287 and Reference a. above]
c. BAAQMD A #17860
T. TBACT