40 CFR §60.402

1. (a)On and after the date on which the performance test required to be conducted by § 60.8 is completed, no owner or operator subject to the provisions of this subpart shall cause to be discharged into the atmosphere:
   1. (1)From any phosphate rock dryer any gases which:
      1. (i)Contain particulate matter in excess of 0.030 kilogram per megagram of phosphate rock feed (0.06 lb/ton), or
      2. (ii)Exhibit greater than 10-percent opacity.
   2. (2)From any phosphate rock calciner processing unbeneficiated rock or blends of beneficiated and unbeneficiated rock, any gases which:
      1. (i)Contain particulate matter in excess of 0.12 kilogram per megagram of phosphate rock feed (0.23 lb/ton), or
      2. (ii)Exhibit greater than 10-percent opacity.
   3. (3)From any phosphate rock calciner processing beneficiated rock any gases which:
      1. (i)Contain particulate matter in excess of 0.055 kilogram per megagram of phosphate rock feed (0.11 lb/ton), or
      2. (ii)Exhibit greater than 10-percent opacity.
   4. (4)From any phosphate rock grinder any gases which:
      1. (i)Contain particulate matter in excess of 0.006 kilogram per megagram of phosphate rock feed (0.012 lb/ton), or
      2. (ii)Exhibit greater than zero-percent opacity.
   5. (5)From any ground phosphate rock handling and storage system any gases which exhibit greater than zero-percent opacity.