[Code of Federal Regulations]

[Title 40, Volume 8]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR61.14]



[Page 38-39]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS--Table 

of Contents

 

                      Subpart A_General Provisions

 

Sec.  61.14  Monitoring requirements.



    (a) Unless otherwise specified, this section applies to each 

monitoring system required under each subpart which requires monitoring.

    (b) Each owner or operator shall maintain and operate each 

monitoring system as specified in the applicable subpart and in a manner 

consistent with good air pollution control practice for minimizing 

emissions. Any unavoidable breakdown or malfunction of the monitoring 

system should be repaired or adjusted as soon as practicable after its 

occurrence. The Administrator's determination of whether acceptable 

operating and maintenance procedures are being used will be based on 

information which may include, but not be limited to, review of 

operating and maintenance procedures, manufacturer recommendations and 

specifications, and inspection of the monitoring system.



[[Page 39]]



    (c) When required by the applicable subpart, and at any other time 

the Administrator may require, the owner or operator of a source being 

monitored shall conduct a performance evaluation of the monitoring 

system and furnish the Administrator with a copy of a written report of 

the results within 60 days of the evaluation. Such a performance 

evaluation shall be conducted according to the applicable specifications 

and procedures described in the applicable subpart. The owner or 

operator of the source shall furnish the Administrator with written 

notification of the date of the performance evaluation at least 30 days 

before the evaluation is to begin.

    (d) When the effluents from a single source, or from two or more 

sources subject to the same emission standards, are combined before 

being released to the atmosphere, the owner or operator shall install a 

monitoring system on each effluent or on the combined effluent. If two 

or more sources are not subject to the same emission standards, the 

owner or operator shall install a separate monitoring system on each 

effluent, unless otherwise specified. If the applicable standard is a 

mass emission standard and the effluent from one source is released to 

the atmosphere through more than one point, the owner or operator shall 

install a monitoring system at each emission point unless the 

installation of fewer systems is approved by the Administrator.

    (e) The owner or operator of each monitoring system shall reduce the 

monitoring data as specified in each applicable subpart. Monitoring data 

recorded during periods of unavoidable monitoring system breakdowns, 

repairs, calibration checks, and zero and span adjustments shall not be 

included in any data average.

    (f) The owner or operator shall maintain records of monitoring data, 

monitoring system calibration checks, and the occurrence and duration of 

any period during which the monitoring system is malfunctioning or 

inoperative. These records shall be maintained at the source for a 

minimum of 2 years and made available, upon request, for inspection by 

the Administrator.

    (g)(1) Monitoring shall be conducted as set forth in this section 

and the applicable subpart unless the Administrator--

    (i) Specifies or approves the use of the specified monitoring 

requirements and procedures with minor changes in methodology; or

    (ii) Approves the use of alternatives to any monitoring requirements 

or procedures.

    (2) If the Administrator finds reasonable grounds to dispute the 

results obtained by an alternative monitoring method, the Administrator 

may require the monitoring requirements and procedures specified in this 

part.



[50 FR 46293, Nov. 7, 1985]