【正文】 lways operate and maintain your iron and steel foundry, including air pollution control and monitoring equipment, in a manner consistent with good air pollution control practices for minimizing emissions at least to the levels required by this subpart.(b) You must prepare and operate at all times according to a written operation and maintenance plan for each capture and collection system and control device for an emissions source subject to a PM, metal HAP, TEA, or VOHAP emissions limit in 167。(a)(2)(ix).(d) If you menced construction or reconstruction between December 23, 2002 and April 22, 2004, and you chose to ply with the proposed emissions limit when demonstrating initial pliance, you must conduct a second performance test to demonstrate pliance with the promulgated emissions limit by October 19, 2007 or after startup of the source, whichever is later, according to 167。(a)(7) for your iron and steel foundry no less frequently than once every 6 months.[69 FR 21923, Apr. 22, 2004, as amended at 73 FR 7219, Feb. 7, 2008]167。(e)(1) and the conditions specified in paragraphs (b) through (i) of this section.(b) To determine pliance with the applicable emissions limit for PM in 167。When must I conduct subsequent performance tests?(a) You must conduct subsequent performance tests to demonstrate pliance with all applicable PM or total metal HAP, VOHAP, and TEA emissions limitations in 167。 that applies to you where initial pliance is not demonstrated using a performance test, you must demonstrate initial pliance no later than 30 calendar days after the pliance date that is specified for your iron and steel foundry in 167。s facility, the inspection procedures must include an explanation of how the periodic inspections ensure that not less than 10 percent of scrap purchased from each supplier is subject to inspection.(d) For each furan warm box mold or core making line in a new or existing iron and steel foundry, you must use a binder chemical formulation that does not contain methanol as a specific ingredient of the catalyst formulation as determined by the Material Safety Data Sheet. This requirement does not apply to the resin portion of the binder system.(e) For each scrap preheater at an existing iron and steel foundry, you must meet either the requirement in paragraph (e)(1) or (2) of this section. As an alternative to the requirement in paragraph (e)(1) or (2) of this section, you must meet the VOHAP emissions limit in 167。F). Periods when the cupola is off blast and for 15 minutes after going on blast from an off blast condition are not included in the 15minute average.(4) You must operate each bustion device applied to emissions from a scrap preheater subject to the emissions limit for VOHAP in paragraph (a)(9) of this section or from a TEA cold box mold or core making line subject to the emissions limit for TEA in paragraph (a)(11) of this section, such that the 3hour average bustion zone temperature does not fall below the minimum level established during the initial or subsequent performance test.(5) You must operate each wet acid scrubber applied to emissions from a TEA cold box mold or core making line subject to the emissions limit for TEA in paragraph (a)(11) of this section such that:(i) The 3hour average scrubbing liquid flow rate does not fall below the minimum level established during the initial or subsequent performance test。What emissions limitations must I meet?(a) You must meet the emissions limits or standards in paragraphs (a)(1) through (11) of this section that apply to you. When alternative emissions limitations are provided for a given emissions source, you are not restricted in the selection of which applicable alternative emissions limitation is used to demonstrate pliance.(1) For each electric arc metal melting furnace, electric induction metal melting furnace, or scrap preheater at an existing iron and steel foundry, you must not discharge emissions through a conveyance to the atmosphere that exceed either the limit for particulate matter (PM) in paragraph (a)(1)(i) of this section or, alternatively the limit for total metal HAP in paragraph (a)(1)(ii) of this section:(i) grains of PM per dry standard cubic foot (gr/dscf), or(ii) gr/dscf of total metal HAP.(2) For each cupola metal melting furnace at an existing iron and steel foundry, you must not discharge emissions through a conveyance to the atmosphere that exceed either the limit for PM in paragraph (a)(2)(i) or (ii) of this section or, alternatively the limit for total metal HAP in paragraph (a)(2)(iii) or (iv) of this section:(i) gr/dscf of PM。When do I have to ply with this subpart?(a) Except as specified in paragraph (b) of this section, if you have an existing affected source, you must ply with each emissions limitation, work practice standard, and operation and maintenance requirement in this subpart that applies to you no later than April 23, 2007. Major source status for existing affected sources must be determined no later than April 23, 2007.(b) If you have an existing affected source, you must ply with the work practice standards in 167。Subpart EEEEE—National Emission Standards for Hazardous Air Pollutants for Iron and Steel FoundriesSource: What is the purpose of this subpart?This subpart establishes national emission standards for hazardous air pollutants (NESHAP) for iron and steel foundries. This subpart also establishes requirements to demonstrate initial and continuous pliance with the emissions limitations, work practice standards, and operation and maintenance requirements in this subpart.167。(g).(b) You must meet each operating limit in paragraphs (b)(1) through (5) of this section that applies to you.(1) You must install, operate, and maintain a capture and collection system for all emissions sources subject to an emissions limit for VOHAP or TEA in paragraphs (a)(8) through (11) of this section.(i) Each capture and collection system must meet a