[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: 40CFR61.186]

[Page 144-145]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
--Table of Contents
 
  Subpart P_National Emission Standard for Inorganic Arsenic Emissions 
    From Arsenic Trioxide and Metallic Arsenic Production Facilities
 
Sec. 61.186  Reporting requirements.

    (a) Each owner or operator subject to the provisions of Sec. 
61.183(a) shall provide the Administrator at least 30 days prior notice 
of each reference opacity level determination required in Sec. 
61.183(a) to afford the Administrator the opportunity to have an 
observer present.
    (b) Each owner or operator subject to the provisions of Sec. 
61.183(a) shall submit to the Administrator:
    (1) Within 60 days of conducting the evaluation required in Sec. 
61.183(b)(1), a written report of the continuous monitoring system 
evaluation;
    (2) Within 30 days of establishing the reference opacity level 
required in Sec. 61.183(d), a written report of the reference opacity 
level. The report shall also include the opacity data used and the 
calculations performed to determine the reference opacity level, and 
sufficient documentation to show that process and emission control 
equipment were operating normally during the reference opacity level 
determination; and
    (3) A written report each quarter of each occurrence of excess 
opacity during the quarter. For the purposes of this paragraph, an 
occurrence of excess opacity is any 6-minute period during which the 
average opacity, as measured by the continuous monitoring system, 
exceeds the reference opacity level established under Sec. 61.183(d).
    (c) All quarterly reports of excess opacity shall be postmarked by 
the 30th day following the end of each quarter and shall include the 
following information:
    (1) The magnitude of excess opacity, any conversion factor(s) used, 
and the dates and times of commencement and completion of each 
occurrence of excess opacity, the cause of each exceedance of the 
reference opacity level, and the measures taken to minimize emissions.
    (2) Specific identification of each period of excess opacity that 
occurred during startups, shutdowns, and malfunctions of the source.
    (3) The date and time identifying each period during which the 
continuous monitoring system or monitoring device was inoperative, 
except for zero and span checks, and the nature of the system repairs or 
adjustments.
    (d) Each owner or operator subject to this subpart shall submit a 
written report semiannually to the Administrator that describes the 
status and results, for the reporting period, of any pilot plant studies 
on alternative arsenic trioxide production processes. Conclusions and 
recommendations of the studies shall also be reported.
    (e) All semiannual progress reports required in paragraph (d) of 
this section shall be postmarked by the 30th

[[Page 145]]

day following the end of each 6-month period.
    (f) Each owner or operator of a source to which this subpart applies 
shall submit a written report each quarter to the Administrator that 
includes the following information:
    (1) All ambient inorganic arsenic concentrations measured at all 
monitoring sites in accordance with Sec. 61.184.
    (2) A description of any modifications to the sampling network, 
during the reporting period, including any major maintenance, site 
changes, calibrations, and quality assurance information including 
sampling and analytical precision and accuracy estimates.
    (g) All quarterly reports required in paragraph (f) of this section 
shall be postmarked by the 30th day following the end of each quarter.