A. No person shall cause, allow or permit the discharge of particulate matter into the atmosphere in any one hour from any secondary brass or bronze ingot production plant in total quantities in excess of the amount calculated by one of the following equations:
1. For process sources having a process weight rate of 60,000 pounds per hour (30 tons per hour) or less, the maximum allowable emissions shall be determined by the following equation:
E = 3.59P 0.62
where:
E = The maximum, allowable particulate emission rate in pounds-mass per hour, and
P = The process weight rate in tons-mass per hour.
2. For process sources having a process weight rate greater than sixty thousand pounds per hour (thirty tons per hour), the maximum allowable emissions shall be determined by the following equation:
E = 17.31P 0.16
where "E" and "P" are defined as indicated in subdivision 1 of this subsection.
B. Emission values shall be calculated from the applicable equations and rounded off to two decimal places.
C. For purposes of this section, the total process weight from all similar units employing a similar type process shall be used in determining the maximum allowable emission of particulate matter.
D. The opacity of emissions subject to the provisions of this section shall not exceed twenty percent.
E. The test methods and procedures required by this section are as follows:
1. The reference methods set forth in 40 CFR 60, Appendix A shall be used to determine compliance with the standards prescribed in subsection A of this section as follows:
a. Method 4 and 5 for the concentration of particulate matter;
b. Method 1 for sample and velocity traverses;
c. Method 2 for velocity and volumetric flow rate;
d. Method 3 for gas analysis.
2. For Method 5, the sampling time for each run shall be at least 120 minutes and the sampling rate shall be at least 0.9 dscm/hr (0.53 dscf/min), except that shorter sampling times, when necessitated by process variables or other factors, may be approved by the control officer. Particulate sampling shall be conducted during representative periods of charging and refining but not during pouring of the heat.
(Ord. 1993-128 § 4 (part), 1993)