[Code of Federal Regulations]
[Title 40, Volume 8]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR61.142]

[Page 97-99]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
--Table of Contents
 
            Subpart M_National Emission Standard for Asbestos
 
Sec. 61.142  Standard for asbestos mills.

    (a) Each owner or operator of an asbestos mill shall either 
discharge no visible emissions to the outside air from that asbestos 
mill, including fugitive sources, or use the methods specified by Sec. 
61.152 to clean emissions containing particulate asbestos material 
before they escape to, or are vented to, the outside air.
    (b) Each owner or operator of an asbestos mill shall meet the 
following requirements:
    (1) Monitor each potential source of asbestos emissions from any 
part of the mill facility, including air cleaning devices, process 
equipment, and buildings that house equipment for material processing 
and handling, at least once each day, during daylight hours, for visible 
emissions to the outside air during periods of operation. The monitoring 
shall be by visual observation of at least 15 seconds duration per 
source of emissions.
    (2) Inspect each air cleaning device at least once each week for 
proper operation and for changes that signal the potential for 
malfunction, including, to the maximum extent possible without 
dismantling other than opening the device, the presence of tears, holes, 
and abrasions in filter bags and for dust deposits on the clean side of 
bags. For air cleaning devices that cannot be inspected on a weekly 
basis according to this paragraph, submit to the Administrator, and 
revise as necessary, a written maintenance plan to include, at a 
minimum, the following:
    (i) Maintenance schedule.
    (ii) Recordkeeping plan.
    (3) Maintain records of the results of visible emissions monitoring 
and air cleaning device inspections using a format similar to that shown 
in Figures 1 and 2 and include the following:
    (i) Date and time of each inspection.
    (ii) Presence or absence of visible emissions.

[[Page 98]]

    (iii) Condition of fabric filters, including presence of any tears, 
holes, and abrasions.
    (iv) Presence of dust deposits on clean side of fabric filters.
    (v) Brief description of corrective actions taken, including date 
and time.
    (vi) Daily hours of operation for each air cleaning device.
    (4) Furnish upon request, and make available at the affected 
facility during normal business hours for inspection by the 
Administrator, all records required under this section.
    (5) Retain a copy of all monitoring and inspection records for at 
least 2 years.
    (6) Submit semiannually a copy of visible emission monitoring 
records to the Administrator if visible emissions occurred during the 
report period. Semiannual reports shall be postmarked by the 30th day 
following the end of the six-month period.
[GRAPHIC] [TIFF OMITTED] TC01MY92.000


[[Page 99]]


[GRAPHIC] [TIFF OMITTED] TC01MY92.001


[55 FR 48416, Nov. 20, 1990, as amended at 64 FR 7467, Feb. 12, 1999]