Statutes, codes, and regulations
NORTH CAROLINA ADMINISTRATIVE CODE
Title 15A - Environmental QualityChapter 02 - ENVIRONMENTAL MANAGEMENTSubchapter Q - AIR QUALITY PERMITS PROCEDURES
Section .0700 - TOXIC AIR POLLUTANT PROCEDURES
Section 02Q .0711 - EMISSION RATES REQUIRING A PERMIT

15A N.C. Admin. Code 2Q.0711

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Current through Register Vol. 39, No. 13, January 2, 2025
Section 02Q .0711 - EMISSION RATES REQUIRING A PERMIT
(a) A permit to emit toxic air pollutants shall be required for any facility, excluding sources exempt from evaluation by 15A NCAC 02Q .0702, if one or more emission release points are obstructed or non-vertically oriented whose actual rate of emissions by pollutant from all sources is greater than any one of the following toxic air pollutant permitting emissions rates:

Obstructed or Non-Vertical Oriented Toxic Air Pollutant Permitting Emission Rates (TPER)

Pollutant (CAS Number)

Carcinogens

lb/yr

Chronic Toxicants

lb/day

Acute Systemic Toxicants lb/hr

Acute Irritants

lb/hr

acetaldehyde (75-07-0)

6.8

acetic acid (64-19-7)

0.96

acrolein (107-02-8)

0.02

acrylonitrile (107-13-1)

0.4

0.22

ammonia (7664-41-7)

0.68

aniline (62-53-3)

0.25

arsenic and inorganic arsenic compounds

0.053

asbestos (1332-21-4)

5.7 X 10-3

aziridine (151-56-4)

0.13

benzene (71-43-2)

8.1

benzidine and salts (92-87-5)

0.0010

benzo(a)pyrene (50-32-8)

2.2

benzyl chloride (100-44-7)

0.13

beryllium (7440-41-7)

0.28

beryllium chloride (7787-47-5)

0.28

beryllium fluoride (7787-49-7)

0.28

beryllium nitrate (13597-99-4)

0.28

bioavailable chromate pigments,

as chromium (VI) equivalent

0.0056

bis-chloromethyl ether (542-88-1)

0.025

bromine (7726-95-6)

0.052

1,3-butadiene (106-99-0)

11

cadmium (7440-43-9)

0.37

cadmium acetate (543-90-8)

0.37

cadmium bromide (7789-42-6)

0.37

carbon disulfide (75-15-0)

3.9

carbon tetrachloride (56-23-5)

460

chlorine (7782-50-5)

0.79

0.23

chlorobenzene (108-90-7)

46

chloroform (67-66-3)

290

chloroprene (126-99-8)

9.2

0.89

cresol (1319-77-3)

0.56

p-dichlorobenzene (106-46-7)

16.8

di(2-ethylhexyl)phthalate (117-81-7)

0.63

dimethyl sulfate (77-78-1)

0.063

1,4-dioxane (123-91-1)

12

epichlorohydrin (106-89-8)

5600

ethyl acetate (141-78-6)

36

ethylenediamine (107-15-3)

6.3

0.64

ethylene dibromide (106-93-4)

27

ethylene dichloride (107-06-2)

260

ethylene glycol monoethyl ether (110-80-5)

2.5

0.48

ethylene oxide (75-21-8)

1.8

ethyl mercaptan (75-08-1)

0.025

fluorides

0.34

0.064

formaldehyde (50-00-0)

0.04

hexachlorocyclopentadiene (77-47-4)

0.013

0.0025

hexachlorodibenzo-p-dioxin (57653- 85-7)

0.0051

n-hexane (110-54-3)

23

hexane isomers except n-hexane

92

hydrazine (302-01-2)

0.013

hydrogen chloride (7647-01-0)

0.18

hydrogen cyanide (74-90-8)

2.9

0.28

hydrogen fluoride (7664-39-3)

0.63

0.064

hydrogen sulfide (7783-06-4)

1.7

maleic anhydride (108-31-6)

0.25

0.025

manganese and compounds

0.63

manganese cyclopentadienyl tricarbonyl (12079-65-1)

0.013

manganese tetroxide (1317-35-7)

0.13

mercury, alkyl

0.0013

mercury, aryl and inorganic compounds

0.013

mercury, vapor (7439-97-6)

0.013

methyl chloroform (71-55-6)

250

64

methylene chloride (75-09-2)

1600

0.39

methyl ethyl ketone (78-93-3)

78

22.4

methyl isobutyl ketone (108-10-1)

52

7.6

methyl mercaptan (74-93-1)

0.013

nickel carbonyl (13463-39-3)

0.013

nickel metal (7440-02-0)

0.13

nickel, soluble compounds, as nickel

0.013

nickel subsulfide (12035-72-2)

0.14

nitric acid (7697-37-2)

0.256

nitrobenzene (98-95-3)

1.3

0.13

n-nitrosodimethylamine (62-75-9)

3.4

non-specific chromium (VI) compounds, as chromium (VI) equivalent

0.0056

pentachlorophenol (87-86-5)

0.063

0.0064

perchloroethylene (127-18-4)

13000

phenol (108-95-2)

0.24

phosgene (75-44-5)

0.052

phosphine (7803-51-2)

0.032

polychlorinated biphenyls (1336-36- 3)

5.6

soluble chromate compounds, as chromium (VI) equivalent

0.013

styrene (100-42-5)

2.7

sulfuric acid (7664-93-9)

0.25

0.025

tetrachlorodibenzo-p-dioxin (1746- 01-6)

0.00020

1,1,2,2-tetrachloroethane (79-34-5)

430

toluene (108-88-3)

98

14.4

toluene diisocyanate,2,4-(584-84-9) and 2,6- (91-08-7) isomers

0.003

trichloroethylene (79-01-6)

4000

vinyl chloride (75-01-4)

26

vinylidene chloride (75-35-4)

2.5

xylene (1330-20-7)

57

16.4

(b) A permit to emit toxic air pollutants shall be required for any facility if all emission release points are unobstructed and vertically oriented whose actual rate of emissions from all sources is greater than any one of the following toxic air pollutant permitting emissions rates:

Unobstructed Toxic Air Pollutant Permitting Emission Rates (TPER)

Pollutant (CAS Number)

Carcinogens

lb/yr

Chronic Toxicants

lb/day

Acute Systemic Toxicants lb/hr

Acute Irritants

lb/hr

acetaldehyde (75-07-0)

28.43

acetic acid (64-19-7)

3.90

acrolein (107-02-8)

0.08

acrylonitrile (107-13-1)

1.3

1.05

ammonia (7664-41-7)

2.84

aniline (62-53-3)

1.05

arsenic and inorganic arsenic compounds

0.194

asbestos (1332-21-4)

7.748 x 10-3

aziridine (151-56-4)

0.3

benzene (71-43-2)

11.069

benzidine and salts (92-87-5)

1.384 x 10-3

benzo(a)pyrene (50-32-8)

3.044

benzyl chloride (100-44-7)

0.53

beryllium (7440-41-7)

0.378

beryllium chloride (7787-47-5)

0.378

beryllium fluoride (7787-49-7)

0.378

beryllium nitrate (13597-99-4)

0.378

bioavailable chromate pigments,

as chromium (VI) equivalent

0.008

bis-chloromethyl ether (542-88-1)

0.034

bromine (7726-95-6)

0.21

1,3-butadiene (106-99-0)

40.585

cadmium (7440-43-9)

0.507

cadmium acetate (543-90-8)

0.507

cadmium bromide (7789-42-6)

0.507

carbon disulfide (75-15-0)

7.8

carbon tetrachloride (56-23-5)

618.006

chlorine (7782-50-5)

1.6

0.95

chlorobenzene (108-90-7)

92.7

chloroform (67-66-3)

396.631

chloroprene (126-99-8)

18.5

3.69

cresol (1319-77-3)

2.32

p-dichlorobenzene (106-46-7)

69.50

di(2-ethylhexyl)phthalate (117-81-7)

1.3

dimethyl sulfate (77-78-1)

0.1

1,4-dioxane (123-91-1)

23.6

epichlorohydrin (106-89-8)

7655.891

ethyl acetate (141-78-6)

147.41

ethylenediamine (107-15-3)

12.6

2.63

ethylene dibromide (106-93-4)

36.896

ethylene dichloride (107-06-2)

350.511

ethylene glycol monoethyl ether (110-80-5)

5.1

2.00

ethylene oxide (75-21-8)

2.490

ethyl mercaptan (75-08-1)

0.11

fluorides

0.7

0.26

formaldehyde (50-00-0)

0.16

hexachlorocyclopentadiene (77-47-4)

2.5 x 10-2

0.01

hexachlorodibenzo-p-dioxin (57653- 85-7)

0.007

n-hexane (110-54-3)

46.3

hexane isomers except n-hexane

379.07

hydrazine (302-01-2)

2.5 x 10-2

hydrogen chloride (7647-01-0)

0.74

hydrogen cyanide (74-90-8)

5.9

1.16

hydrogen fluoride (7664-39-3)

1.3

0.26

hydrogen sulfide (7783-06-4)

5.1

maleic anhydride (108-31-6)

0.5

0.11

manganese and compounds

1.3

manganese cyclopentadienyl tricarbonyl (12079-65-1)

2.5 x 10-2

manganese tetroxide (1317-35-7)

0.3

mercury, alkyl

2.5 x 10-3

mercury, aryl and inorganic compounds

2.5 x 10-2

mercury, vapor (7439-97-6)

2.5 x 10-2

methyl chloroform (71-55-6)

505.4

257.98

methylene chloride (75-09-2)

2213.752

1.79

methyl ethyl ketone (78-93-3)

155.8

93.19

methyl isobutyl ketone (108-10-1)

107.8

31.59

methyl mercaptan (74-93-1)

0.05

nickel carbonyl (13463-39-3)

2.5 x 10-2

nickel metal (7440-02-0)

0.3

nickel, soluble compounds, as nickel

2.5 x 10-2

nickel subsulfide (12035-72-2)

0.194

nitric acid (7697-37-2)

1.05

nitrobenzene (98-95-3)

2.5

0.53

n-nitrosodimethylamine (62-75-9)

4.612

non-specific chromium (VI) compounds, as chromium (VI) equivalent

0.008

pentachlorophenol (87-86-5)

0.1

0.03

perchloroethylene (127-18-4)

17525.534

phenol (108-95-2)

1.00

phosgene (75-44-5)

0.1

phosphine (7803-51-2)

0.14

polychlorinated biphenyls (1336-36- 3)

7.656

soluble chromate compounds, as chromium (VI) equivalent

2.6 x 10-2

styrene (100-42-5)

11.16

sulfuric acid (7664-93-9)

0.5

0.11

tetrachlorodibenzo-p-dioxin (1746- 01-6)

2.767 x 10-4

1,1,2,2-tetrachloroethane (79-34-5)

581.110

toluene (108-88-3)

197.96

58.97

toluene diisocyanate,2,4-(584-84-9) and 2,6- (91-08-7) isomers

8.4 x 10-3

trichloroethylene (79-01-6)

5442.140

vinyl chloride (75-01-4)

35.051

vinylidene chloride (75-35-4)

5.1

xylene (1330-20-7)

113.7

68.44

(c) For the following pollutants, the highest emissions occurring in any 15-minute period shall be multiplied by four and the product shall be compared to the value in Paragraph (a) or (b), as applicable:
(1) acetaldehyde (75-07-0);
(2) acetic acid (64-19-7);
(3) acrolein (107-02-8);
(4) ammonia (7664-41-7);
(5) bromine (7726-95-6);
(6) chlorine (7782-50-5);
(7) formaldehyde (50-00-0);
(8) hydrogen chloride (7647-01-0);
(9) hydrogen fluoride (7664-39-3); and
(10) nitric acid (7697-37-2).

15A N.C. Admin. Code 02Q .0711

Authority G.S. 143-215.3(a)(1); 143-215-107; 143-215.108; 143B-282;
Rule originally codified as part of 15A NCAC 02H .0610;
Eff. July 1, 1998;
Amended Eff. May 1, 2015; July 7, 2014; May 1, 2014; January 1, 2010; June 1, 2008; April 1, 2005; February 1, 2005; April 1, 2001;
Readopted Eff. July 1, 2018.
Amended by North Carolina Register Volume 28, Issue 23, June 2, 2014, effective 5/1/2014.
Amended by North Carolina Register Volume 29, Issue 23, June 1, 2015 effective 5/1/2015.
Readopted by North Carolina Register Volume 33, Issue 03, August 01, 2018 effective 7/1/2018.