[Code of Federal Regulations]
[Title 40, Volume 5]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR57.503]

[Page 148-149]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 57--PRIMARY NONFERROUS SMELTER ORDERS--Table of Contents
 
           Subpart E--Fugitive Emission Evaluation and Control
 
Sec. 57.503  Control measures.

    The NSO of any smelter subject to the requirements of Sec. 57.502(b) 
shall be amended, if necessary, within 6 months of EPA's receipt of the 
analysis specified in Sec. 57.502(b), as provided in Sec. 57.704(c) to 
implement the requirement of Sec. 57.501. Measures required to be 
implemented may include:
    (a) Additional supplementary control. The use of the supplementary 
control

[[Page 149]]

system, if the additional use of the system does not interfere with the 
smelter owner's ability to meet the requirements of subpart D; and
    (b) Engineering and maintenance techniques. The use of engineering 
and maintenance techniques to detect and prevent leaks and capture and 
vent fugitive emissions through appropriate stacks. These techniques 
include but are not limited to:
    (1) For reactors, installation and proper operation of primary 
hoods;
    (2) For roasters, installation and proper operation of primary hoods 
on all hot calcine transfer points;
    (3) For furnaces, installation and proper operation of primary hoods 
on all active matte tap holes, matte launders, slag skim bays, and 
transfer points;
    (4) For converters, installation and proper operation of primary 
hoods for blowing operations, and where appropriate, secondary hoods for 
charging and pouring operations;
    (5) For sintering machines, installation and proper operation of 
primary hoods on the sinter bed, all hot sinter ignition points, all 
concentrate laydown points, and all hot sinter transfer points;
    (6) For blast furnaces, installation and proper operation of primary 
hoods on all active slag and lead bullion furnace tap holes and transfer 
points;
    (7) For dross reverberatory furnaces, installation and proper 
operation of primary hoods on all active charging and discharging 
points;
    (8) Maintenance of all ducts, flues and stacks in a leak-free 
condition to the maximum extent possible;
    (9) Maintenance of all process equipment under normal operating 
conditions in such a fashion that out-leakage of fugitive gases will be 
prevented to the maximum extent possible;
    (10) Secondary or tertiary hooding on process equipment where 
necessary; and
    (11) Partial or complete building evacuation as appropriate.