[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: 40CFR58.10]

[Page 221-222]
 
                   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. 58.10  Annual monitoring network plan and periodic network assessment.

    Source: 71 FR 61298, Oct. 17, 2006, unless otherwise noted.


    (a)(1) Beginning July 1, 2007, the State, or where applicable local, 
agency shall adopt and submit to the Regional Administrator an annual 
monitoring network plan which shall provide for the establishment and 
maintenance of an air quality surveillance system that consists of a 
network of SLAMS monitoring stations including FRM, FEM, and ARM 
monitors that are part of SLAMS, NCore stations, STN stations, State 
speciation stations, SPM stations, and/or, in serious, severe and 
extreme ozone nonattainment areas, PAMS stations, and SPM monitoring 
stations. The plan shall include a statement of purposes for each 
monitor and evidence that siting and operation of each monitor meets the 
requirements of appendices A, C, D, and E of this part, where 
applicable. The annual monitoring network plan must be made available 
for public inspection for at least 30 days prior to submission to EPA.
    (2) Any annual monitoring network plan that proposes SLAMS network 
modifications including new monitoring sites is subject to the approval 
of the EPA Regional Administrator, who shall provide opportunity for 
public comment and shall approve or disapprove the plan and schedule 
within 120 days. If the State or local agency has already provided a 
public comment opportunity on its plan and has made no changes 
subsequent to that comment opportunity, and has submitted the received 
comments together with the plan, the Regional Administrator is not 
required to provide a separate opportunity for comment.
    (3) The plan for establishing required NCore multipollutant stations 
shall be submitted to the Administrator not later than July 1, 2009. The 
plan shall provide for all required stations to be operational by 
January 1, 2011.
    (b) The annual monitoring network plan must contain the following 
information for each existing and proposed site:
    (1) The AQS site identification number.
    (2) The location, including street address and geographical 
coordinates.
    (3) The sampling and analysis method(s) for each measured parameter.
    (4) The operating schedules for each monitor.
    (5) Any proposals to remove or move a monitoring station within a 
period of 18 months following plan submittal.

[[Page 222]]

    (6) The monitoring objective and spatial scale of representativeness 
for each monitor as defined in appendix D to this part.
    (7) The identification of any sites that are suitable and sites that 
are not suitable for comparison against the annual PM2.5 
NAAQS as described in Sec. 58.30.
    (8) The MSA, CBSA, CSA or other area represented by the monitor.
    (c) The annual monitoring network plan must document how States and 
local agencies provide for the review of changes to a PM2.5 
monitoring network that impact the location of a violating 
PM2.5 monitor or the creation/change to a community 
monitoring zone, including a description of the proposed use of spatial 
averaging for purposes of making comparisons to the annual 
PM2.5 NAAQS as set forth in appendix N to part 50 of this 
chapter. The affected State or local agency must document the process 
for obtaining public comment and include any comments received through 
the public notification process within their submitted plan.
    (d) The State, or where applicable local, agency shall perform and 
submit to the EPA Regional Administrator an assessment of the air 
quality surveillance system every 5 years to determine, at a minimum, if 
the network meets the monitoring objectives defined in appendix D to 
this part, whether new sites are needed, whether existing sites are no 
longer needed and can be terminated, and whether new technologies are 
appropriate for incorporation into the ambient air monitoring network. 
The network assessment must consider the ability of existing and 
proposed sites to support air quality characterization for areas with 
relatively high populations of susceptible individuals (e.g., children 
with asthma), and, for any sites that are being proposed for 
discontinuance, the effect on data users other than the agency itself, 
such as nearby States and Tribes or health effects studies. For 
PM2.5, the assessment also must identify needed changes to 
population-oriented sites. The State, or where applicable local, agency 
must submit a copy of this 5-year assessment, along with a revised 
annual network plan, to the Regional Administrator. The first assessment 
is due July 1, 2010.
    (e) All proposed additions and discontinuations of SLAMS monitors in 
annual monitoring network plans and periodic network assessments are 
subject to approval according to Sec. 58.14.

[71 FR 61298, Oct. 17, 2006, as amended at 72 FR 32210, June 12, 2007]