17.16.410   Standards of performance for cotton gins.
   A.   Fugitive dust, lint, bolls, cotton seed or other material emitted from a cotton gin or lying loose in a yard shall be collected and disposed of in an efficient manner or shall be treated in accordance with Sections 17.16.070 through 17.16.110.
   B.   An opacity of forty percent or less shall exempt the source from mass emissions testing. In the event that the cotton gin does not comply with the forty percent opacity standard, the owner or operator may request the permission of the control officer to perform a mass emissions test observed by a representative of the control officer. Successful completion of this test will result in an adjustment to the simultaneous opacity standard in accordance with Section 17.16.130E.
   C.   No person shall cause, allow, or permit the discharge of particulate matter into the atmosphere in any one hour from any cotton gin in total quantities in excess of the amounts calculated by one of the following equations:
      1.   For process sources having a process weight rate of sixty thousand pounds per hour (thirty tons per hour) or less, the maximum allowable emissions shall be determined by the following equation:
         E = 4.10P 0.67
      where:
         E = the maximum allowable particulate emissions rate in pounds-mass per hour.
         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 = 55.0P 0.11 -40
      where "E" and "P" are defined as indicated in subdivision 1 of this subsection.
   D.   The test methods and procedures required by this section are as follows:
      1.   The reference methods in the Arizona Testing Manual and 40 CFR 60, Appendix A shall be used to determine compliance with this section as follows:
         a.   Method A-2 for the measurement 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;
         e.   Method 9 for visible emissions.
      2.   For Method A-2, the sampling time for each run shall be at least sixty minutes and the sampling rate shall be at least 0.85 dry standard cubic meters per hour (0.53 dry standard cubic feet per minute), except that shorter sampling times, when necessitated by progress variables or other factors, may be approved by the control officer.
(Ord. 1993-128 § 4 (part), 1993)