PBR and Standard Permit Emission Limits

Impacts Analysis Not Required if Total Emissions Less Than

Limit of PBR Level 1

(180 day post construction registration)

Limit of PBR Level 1

(90 day post construction registration)

Limit of PBR Level 2

(preconstruction registration)

Limit of Standard Permit (preconstruction

registration)

NOx 9 lb/hr 9 25

lb/hr tpy

25 100

lb/hr tpy

50 250

lb/hr tpy

53 250

lb/hr tpy

H2S 0.025 lb/hr 0.5 2.2

lb/hr tpy

2 4.5

lb/hr tpy

6 9

lb/hr tpy

6 15

lb/hr tpy

SO2 0.42 lb/hr 5.4 10

lb/hr tpy

8 15

lb/hr tpy

12 25

lb/hr tpy

12 50

lb/hr tpy

CO impacts analysis never required lb/hr 11.4 50 lb/hr tpy

22.8 100

lb/hr tpy

57 250

lb/hr tpy

57 250

lb/hr tpy

PM2.5and10 impacts analysis never required - 0.5 tpy 1 tpy 2 tpy 4 tpy

Total VOC not specified, dictated by benzene, toluene, xylene - 25 5

lb/hr tpy

50 10

lb/hr tpy

75 25

lb/hr tpy

200 250

lb/hr tpy

formaldehyde impacts analysis never required - 0.9 lb/hr 1.5 lb/hr 2 lb/hr 3 10 lb/hr tpy

benzene 0.013 lb/hr 0.8 1.2 lb/hr tpy

1.8 2.5

lb/hr tpy

2.25 3.5

lb/hr tpy

20 10

lb/hr tpy

toluene 0.146 lb/hr 3.1 lb/hr 6 lb/hr 7 lb/hr 35 10 lb/hr tpy

xylene 0.08 lb/hr 1.7 lb/hr 3 lb/hr 4 lb/hr 19 10 lb/hr tpy

Note 1: To explain the information on this chart - xylene is taken as an example. The first column shows that if total site-wide xylene emissions are less than 0.08 lb/hr, no impacts analysis is required to be performed. The next four columns show the xlylene emission limits for each authorization level - Level 1 (180 day post construction registration), Level 1 (90 day post construction registration), Level 2 (preconstruction registration), and Standard Permit (preconstruction registration). If total site-wide xylene emissions are less than 1.7 lb/hr, then xylene emissions fall within the limit of PBR Level 1 (180 day post construction registration). If total site-wide xylene emissions are equal to or greater than 1.7 lb/hr and less than 3 lb/hr, then xylene emissions fall within the limits of PBR Level 1 (90 day post construction registration). If total site-wide xylene emissions are equal to or greater than 3 lb/hr and less than 4 lb/hr, then xylene emissions fall within the limit of PBR Level 2 (preconstruction registration). If total site-wide xylene emissions are equal to or greater than 4 lb/hr and less than 19 lb/hr, then xylene emissions fall within the limit of the Standard Permit (preconstruction registration). Note 2: The site is required to use the highest level of authorization applicable based on the levels the pollutant emissions fall into. For example, if xylene emissions are 1.5 lb/hr, which is below the limits of PBR Level 1 (180 day post construction registration), but NOx emissions are 30 lb/hr, which is greater than the limits of PBR Level 1 (180 day post construction registration), but below the limits of PBR Level 2 (preconstruction registration), then the site must be authorized under PBR Level 2 (preconstruction registration), assuming none of the other pollutant emissions exceed the limits of this level.