Minnesota Administrative Rules

7011.0710 PERFORMANCE STANDARDS; PRE-1969 INDUSTRIAL PROCESS EQUIPMENT.

Subpart 1.

Prohibited discharge of gases.

No owner or operator of any industrial process equipment that was in operation before July 9, 1969, shall cause to be discharged into the atmosphere from the industrial process equipment any gases that:

A.

in any one hour contain the sum of filterable and organic condensable particulate matter in excess of the amount permitted in part 7011.0730 for the allocated process weight; provided that the owner or operator shall not be required to reduce the particulate matter emission below the concentration permitted in part 7011.0735 for the appropriate source gas volume; provided further that regardless of the mass emission permitted by part 7011.0730, the owner or operator shall not be permitted to emit the sum of filterable and organic condensable particulate matter in a concentration in excess of 0.30 grains per standard cubic foot of exhaust gas; or

B.

exhibit greater than 20 percent opacity, except for one six-minute period per hour of not more than 60 percent opacity. An exceedance of this opacity standard occurs whenever any one-hour period contains two or more six-minute periods during which the average opacity exceeds 20 percent or whenever any one-hour period contains one or more six-minute periods during which the average opacity exceeds 60 percent.

Subp. 2.

Compliance.

The owner or operator of any industrial process equipment which was in operation before July 9, 1969, which has control equipment with a collection efficiency of not less than 99 percent by weight shall be considered in compliance with the requirements of subpart 1, item A.

Subp. 3.

Equipment located outside St. Paul, Minneapolis, and Duluth.

The owner or operator of any industrial process equipment which was in operation before July 9, 1969, which is located outside the Minneapolis-St. Paul Air Quality Control Region and the city of Duluth, which is located not less than one-fourth mile from any residence or public roadway, and which has control equipment with a collection efficiency of not less than 85 percent by weight, and the operation of the entire emission facility does not cause a violation of the ambient air quality standards, shall be considered in compliance with the requirements of subpart 1, item A.

Statutory Authority:

MS s 115.03; 116.07

History:

18 SR 614; 23 SR 145; 41 SR 763

Published Electronically:

September 17, 2020