['Air Programs']
['Air Quality']
11/20/2023
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(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) From any phosphate rock dryer any gases which:
(i) Contain particulate matter in excess of 0.030 kilogram per megagram of phosphate rock feed (0.06 lb/ton), or
(ii) Exhibit greater than 10-percent opacity.
(2) From any phosphate rock calciner processing unbeneficiated rock or blends of beneficiated and unbeneficiated rock, any gases which:
(i) Contain particulate matter in excess of 0.12 kilogram per megagram of phosphate rock feed (0.23 lb/ton), or
(ii) Exhibit greater than 10-percent opacity.
(3) From any phosphate rock calciner processing beneficiated rock any gases which:
(i) Contain particulate matter in excess of 0.055 kilogram per megagram of phosphate rock feed (0.11 lb/ton), or
(ii) Exhibit greater than 10-percent opacity.
(4) From any phosphate rock grinder any gases which:
(i) Contain particulate matter in excess of 0.006 kilogram per megagram of phosphate rock feed (0.012 lb/ton), or
(ii) Exhibit greater than zero-percent opacity.
(5) From any ground phosphate rock handling and storage system any gases which exhibit greater than zero-percent opacity.
[47 FR 16589, Apr. 16, 1982, as amended at 65 FR 61760, Oct. 17, 2000]
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