A. The owner or operator of pumice, mica or perlite process equipment shall not permit, cause, suffer or allow particulate matter emissions to the atmosphere from a stack or stacks in excess of the maximum amounts specified in the following table:

Process Rate Pounds per Hour Maximum Stack Emission Rate Pounds per Hour 10,000 10 20,000 15 30,000 22 40,000 28 50,000 31 100,000 33 200,000 37 300,000 40 400,000 43 500,000 47 600,000 & above 50

Process Rate

Pounds per Hour

Maximum Stack Emission Rate

Pounds per Hour

10,000

10

20,000

15

30,000

22

40,000

28

50,000

31

100,000

33

200,000

37

300,000

40

400,000

43

500,000

47

600,000 & above

50

B. When the process rate is between any two consecutive process rates in the table, the maximum stack emission rate is determined by interpolation. Where an operation has more than one stack, the maximum stack emission rate applies to the total of the emissions from all stacks.

[11/30/95; 20.2.15.108 NMAC - Rn, 20 NMAC 2.15.108 10/31/02]