[Code of Federal Regulations]
[Title 40, Volume 5]
[Revised as of July 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR58.11]

[Page 222-223]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 58_AMBIENT AIR QUALITY SURVEILLANCE--Table of Contents
 
                      Subpart B_Monitoring Network
 
Sec. 58.11  Network technical requirements.

    (a)(1) State and local governments shall follow the applicable 
quality assurance criteria contained in appendix A to this part when 
operating the SLAMS networks.
    (2) Beginning January 1, 2009, State and local governments shall 
follow the quality assurance criteria contained in appendix A to this 
part that apply to SPM sites when operating any SPM site which uses a 
FRM, FEM, or ARM and meets the requirements of appendix E to this part, 
unless the Regional Administrator approves an alternative to the 
requirements of appendix A with respect to such SPM sites because 
meeting those requirements would be physically and/or financially 
impractical due to physical conditions at the monitoring site and the 
requirements are not essential to achieving the intended data objectives 
of the SPM site. Alternatives to the requirements of appendix A may be 
approved for an SPM site as part of the approval of the annual 
monitoring plan, or separately.
    (3) The owner or operator of an existing or a proposed source shall 
follow the quality assurance criteria in appendix A to this part that 
apply to PSD monitoring when operating a PSD site.
    (b) State and local governments must follow the criteria in appendix 
C to this part to determine acceptable monitoring methods or instruments 
for use in SLAMS networks. Appendix C criteria are optional at SPM 
stations.
    (c) State and local governments must follow the network design 
criteria contained in appendix D to this part in designing and 
maintaining the SLAMS stations. The final network design and all changes 
in design are subject to approval of the Regional Administrator. NCore, 
STN, and PAMS network design and changes are also subject to approval of 
the Administrator. Changes

[[Page 223]]

in SPM stations do not require approvals, but a change in the 
designation of a monitoring site from SLAMS to SPM requires approval of 
the Regional Administrator.
    (d) State and local governments must follow the criteria contained 
in appendix E to this part for siting monitor inlets, paths or probes at 
SLAMS stations. Appendix E adherence is optional for SPM stations.