Document 82V42XNnwz7J8aEb5BQaxN2dd
scarfing operations. Provided, however, that the hot scarfing machine existing on January 1. . 1987 and operated by the LTV steel Company. Inc.. at its Chicago Works, which employs wet scrubbers, may emit particulate matter in .amounts not exceeding 138 mg/dscm (0.06 gr/dscf) during hot scarfing operations so long as emissions do not exceed 23 mg/dscm (0.01 gr/dscf) as an hourly .average, as measured per hour.
(Source: Amended in R84-48 at 11 111. Reg. 69i. effective Oecember 18. 1986)
Section -212.4S2 Measurement Methods
Particulate matter emissions from emission sources subject to Sections 212.44.1 through 212.4S1 shall be determined in accordance with procedures published in 40 CfR 60. Appendix A. Methods l-S. front one-half of the sampling train. 42 Fed. Reg. 417S4. et seq. (August 18. 1977). Visibl.e emission evaluation for determining compliance shall be conducted in Accordance with procedures published in'40 CFR 60. Appendix A. Method 9. 42 Fed. Reg. 417S4. et.seq. (August 18. 1977).
(Source: Amended at 3 111. Reg. 184. effective September. 28. 1979)
Section 212.455 Highlines on Steel Hills
Section 212.308 shall not apply to highlines at steel, mills.
(Source: Amended at 3 lit. Reg. 100. effective October 26. 1979)
Sectlon 212.456 Certain Small Foundries
Sections 212.321 and 212.-322 shall not apply to foundry cupolas if all the following conditions are met:
a) The cupola was in existence prior to-April IS. 1967; and
b) The cupola process weight rate is-4ess than ' or equal'to 20.000 Ib/hr; and. - -
e) The cupola as of April 14. 1972. either;
1) Is in compliance with subsection (c)(3); or.
2) Is in compliance with the terms and conditions of a variance granted by the 8oard. and construction has commenced on equipment or modifications sufficient to achieve compliance with subsection (c)(3).
3) Allowable emissions from smal-1 ^foundries covered by Section 212.4S6: '
I
v Allowable
Process weight Rate Emission Rate
Pounds Per Hour . Pounds Per Hour
. 1.000
3.OS
2.000
4.70
3.000
6.3S
4.000 .
8.00
S.000
9.S8
6.000
11.30
7.000
12.90
8.000
14.30
9.000
IS.50
10.000
16.65
12.000
18.70
16.000
21.60
is;ooo
23.40
20.000
25.10
(Board Note: For process- weight rates not listed, straight line interpolation between two consecutive process weight
rates SKaTT be use<T (6 detennlhe
allowable emission rates.*);
(Source: Amended at 3 111. Reg. 184. effective September 28.1979) ;
Section 2I2.4S7 Certain Small Iron-Melting . Air Furnaces . , .
Section 212.322 shall not apply to iron-melting air furnaces if all the following conditions are met:
i
aj The air furnace was in exIstencepMor to . April 15; T967. and ts Tocated ;thK1todpeston.
; Vermilion County. Illinois; and.
b) The air furnace process weight-rate is less \ than br equallo 5.000 lb/hr;"antf.-
c)',The air furnace as of November 23. 1977. eltherr'
*
...
.1) isin compliance with Subsection (c)(3);
or
1
2) Is in compliance with the terms and conditioos- of a -variaoce-granted-by the-
8oard; and. construction, has commenced on equipment or modifications sufficient to achieve compliance with subsection (c)(3)
3) Allowable emissions from small iron-melting air furnaces coveretf'by
Section 212.457:
Allowable.,. Process Weight Rate Emission 1
Pounds Per Hour Pounds Pen
1.000 2.000 3.000 4.000 S.000
6r.410r
12.70 16.00 19.16
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