SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT

RULE 1303 - REQUIREMENTS
(Adopted Oct. 5, 1979)(Amended March 7, 1980)(Amended Sept. 10, 1982)(Amended July 12, 1985)(Amended August 1, 1986)(Amended June 28, 1990)(Amended May 3, 1991)(Amended December 7, 1995)(Amended May 10, 1996)(Amended October 20, 2000)


APPENDIX A

The following sets forth the procedure for complying with the air quality modeling requirements of Rule 1303(b). An applicant must either (1) provide an analysis, approved by the Executive Officer or designee, or (2) show by using the Screening Analysis below, that a significant increase in air quality concentration will not occur. Modeling for VOC and SOXis not required.

Table A-1 of the screening analysis is subject to change by the Executive Officer or designee, based on improved modeling data.

 

SCREENING ANALYSIS

Compare the emissions from the source you are applying for to those in Table A-1. If the emissions are less than the allowable emissions, no further analysis is required. If the emissions are greater than the allowable emissions, a more detailed air quality modeling analysis is required.

Table A-1
Allowable Emissions
for Noncombustion Sources and for
Combustion Sources less than or equal to 40 Million BTUs per hour

Heat Input Capacity
(million BTUs/hr)

NOx
(lbs/hr)

CO
(lbs/hr)

PM10
(lbs/hr)

Noncombustion Source

0.068

3.7

0.41

 

< 2

0.20

11.0

1.2

>2

< 5

0.31

17.1

1.9

>5

< 10

0.47

25.9

2.8

>10

< 20

0.86

47.3

5.2

>20

< 30

1.26

69.3

7.6

>30

<40

1.31

72.1

7.9

 

TABLE A-2

Most Stringent Ambient Air Quality Standard and
Allowable Change in Concentration
For Each Air Contaminant/Averaging Time Combination


Air Contaminant


Averaging
Time

Most Stringent
Air Quality
Standard

Significant Change in
Air Quality
Concentration

Nitrogen
Dioxide

1-hour
Annual

25 pphm
5.3 pphm

500 ug/m3
100 ug/m3

1 pphm
0.05 pphm

20 ug/m3
1 ug/m3

Carbon
Monoxide

1-hour
8-hour

20 ppm
9.0 ppm

23 mg/m3
10 mg/m3

1 ppm
0.45 ppm

1.1 mg/m3
0.50 mg/m3

Suspended
Particulate
Matter -<10um
(PM10)

24-hour

Annual Geometric Mean

50 ug/m3

30 ug/m3`

 

2.5 ug/m3
1 ug/ m3

1 ug/m3

Sulfate

24-hour

25 ug/m3

   

 

NSR Trading Zones - South Coast AQMD Air Monitoring Stations

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