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17.8.310    PARTICULATE MATTER, INDUSTRIAL PROCESSES

(1) No person shall cause or authorize particulate matter to be discharged, from any operation, process or activity, into the outdoor atmosphere in excess of the amount shown in the following table:

 

 

Maximum Hourly Allowable

Emissions of Particulate Matter

Process Weight Rate                                 lb/hr

           Tons/hr

             0.05                                                0.551

             0.10                                                0.877

             0.20                                                1.40

             0.30                                                1.83

             0.40                                                2.22

             0.50                                                2.58

             0.75                                                3.38

             1.00                                                4.10

             1.25                                                4.76

             1.50                                                5.38

             1.75                                                5.96

             2.00                                                6.52

             2.50                                                7.58

             3.00                                                8.56

             3.50                                                9.49

             4.00                                              10.40

             4.50                                              11.20

             5.00                                              12.00

             6.00                                              13.60

             8.00                                              16.50

             9.00                                              17.90

           10.00                                              19.20

           15.00                                              25.20

           20.00                                              30.50

           25.00                                              35.40

           30.00                                              40.00

           35.00                                              41.30

           40.00                                              42.50

           45.00                                              43.60

           50.00                                              44.60

           60.00                                              46.30

           70.00                                              47.80

           80.00                                              49.00

         100.00                                              51.20

         500.00                                              69.00

      1,000.00                                              77.60

      3,000.00                                              92.70

(2) When the process weight rate falls between two process weight rate values in the table, or exceeds 3,000 tons per hour, the maximum hourly allowable emissions of particulate matter must be calculated using the following equations:

(a) Maximum hourly allowable emissions of particulate matter, for process weight rates up to 30 tons per hour, must be calculated using the following equation:

 

          E = 4.10 P0.67

 

(b) Maximum hourly allowable emissions of particulate matter, for process weight rates in excess of 30 tons per hour, must be calculated using the following equation:

 

          E = 55.0 P0.11 - 40

 

Where E = rate of emission in pounds per hour and P = process weight rate in tons per hour.

 

(3) This rule does not apply to particulate matter emitted from:

(a) the reduction cells of a primary aluminum reduction plant;

(b) those new stationary sources listed in ARM 17.8.340 for which a particulate emission standard has been promulgated;

(c) fuel burning equipment;

(d) incinerators; and

(e) sources constructed after March 16, 1979, that have a specific particulate emission limitation contained in a Montana air quality permit obtained under ARM Title 17, chapter 8, subchapter 7, a court order, board order or department order, or a process-specific rule.

History: 75-2-111, 75-2-203, MCA; IMP, 75-2-203, MCA; Eff. 12/31/72; AMD, Eff. 7/5/74; AMD, Eff. 9/5/75; AMD, 1995 MAR p. 2413, Eff. 11/10/95; TRANS, from DHES, 1996 MAR p. 2285; AMD, 2002 MAR p. 3567, Eff. 12/27/02.

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