Draft final 2006-2008 PM2.5 design values - AQS 07ju109 2001-2003 site listing

dva 2001 meannf ineannf ineannf counV name cbsa name site 2003 1 2001 2002 2003 state name Walker Chattanooga, TN-GA 132950002 15.5 15.551232 14.838114 16.003452 Georgia Hamilton Chattanooga, TN-GA 470650031 16.1 16.652656 15.139663 16.459107 Tennessee Hamilton Chattanooga, TN-GA 470650032 14.2 14.233438 14.200000 Tennessee Hamilton Chattanooga, TN-GA 470651011 14.1 13.923750 14.274777 Tennessee Hamilton Chattanooga, TN-GA 470654002 15.2 16.133938 14.730514 14.881607 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special rules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 

### ~. In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual design value) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete. The infoiYnation presented in this update is based on data after applying the substitution protocols.

Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).Draft final 2006-2008 PM2.5 design values - AQS 07ju109 2002-2004 site listing

dva 2002 meannf ineannf ineannf countv name ebsa name site 20041 2002 2003 2004 state name Walker Chattanooga, TN-GA 132950002 15.2 14.838114 16.003452 14.702158 Georgia Hamilton Chattanooga, TN-GA 470650031 15.7 15.139663 16.459107 15.649821 Tennessee Hamilton Chattanooga, TN-GA 470651011 13.8 13.923750 14.274777 13.293929 Tennessee Hamilton Chattanooga, TN-GA 470654002 14.7 14.730514 14.881607 14.521938 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special rules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 3). In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual designvalue) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete. The information presented in this update is based on data after applying the substitution protocols.
Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).Draft final 2006-2008 PM2.5 design values - AQS 07ju109 2003-2005 site listing

dva 2003 meannf ineannf ineannf county name cbsa name site 2005 1 2003 2004 2005 state name Walker Chattanooga, TN-GA 132950002 15.8 16.003452 14.702158 16.553974 Georgia Hamilton Chattanooga, TN-GA 470650031 16.1 16.459107 15.649821 16.060223 Tennessee Hamilton Chattanooga, TN-GA 470651011 13.8 14.274777 13.293929 13.794898 Tennessee Hamilton Chattanooga, TN-GA 470654002 15.0 14.881607 14.521938 15.548209 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special rules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 

### ~. In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual design value) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete. The information presented in this update is based on data after applying the substitution protocols.

Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).

Page 1Draft final 2006-2008 PM2.5 design values - AQS 07ju109 2004-2006 site listing

dva 2004 meannf ineannf ineannf county name cbsa name site 20061 2004 2005 2006 state name Walker Chattanooga, TN-GA 132950002 15.2 14.702158 16.553974 14.453333 Georgia Hamilton Chattanooga, TN-GA 470650031 15.3 15.649821 16.060223 14.257500 Tennessee Hamilton Chattanooga, TN-GA 470651011 13.4 13.293929 13.794898 13.080671 Tennessee Hamilton Chattanooga, TN-GA 470654002 15.0 14.521938 15.548209 15.039167 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special rules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 

### ~. In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual designvalue) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete. The information presented in this update is based on data after applying the substitution protocols.
Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).Draft final 2006-2008 PM2.5 design values - AQS 07ju109 2005-2007 site listing

dva 2005 meannf ineannf ineannf county_ name cbsa name site 2007 1 2005 2006 2007 state name Walker Chattanooga, TN-GA 132950002 14.9 16.553974 14.453333 13.689065 Georgia Hamilton Chattanooga, TN-GA 470650031 15.1 16.060223 14.257500 14.932675 Tennessee Hamilton Chattanooga, TN-GA 470651011 13.7 13.794898 13.080671 14.221571 Tennessee Hamilton Chattanooga, TN-GA 470654002 15.2 15.548209 15.039167 15.045845 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special i

-ules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 

### ~. In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual design value) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete, The information presented in this update is based on data after applying the substitution protocols.
Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).

Page 1Final 2006-2008 PM2

.5 design values - AQS 07ju109

dva 2006 meannf ineannf ineannf county_name cbsa name site 2008

~ 2006 2007 2008 state name Walker Chattanooga, TN-GA 132950002 13.5 14.453333 13.689065 12.481596 Georgia Hamilton Chattanooga, TN-GA 470650031 13.8 14.257500 14.932675 12.289345 Tennessee Hamilton Chattanooga, TN-GA 470651011 12.9 13.080671 14.221571 11.388125 Tennessee Hamilton Chattanooga, TN-GA 470654002 14.3 15.039167 15.045845 12.706962 Tennessee
1. The annual standard design values shown here are calculated in accordance with 40 CFR Part 50, Appendix N (2006). The annual standard design value (i.e., the 3-year average annual mean concentration) is computed at each site by averaging the daily FRM samples taken each quarter, averaging these quarterly averages to obtain an annual average, and then averaging the three annual averages. (Note that special rules apply if an area has been approved for spatial averaging.) The NAAQS level for the annual standard is 15.0 micrograms per cubic meter (μg/m 3). In general, EPA regulations require at least 75% data capture in each quarter of a consecutive 3-year period in order for a design value to be valid. However, if an annual mean (or 3-year annual design value) is over the level of the standard, less data (i.e., 11 samples per quarter for the corresponding 4 quarters) are sufficient to deem that mean valid. Further, EPA regulations and guidance permit data substitution under certain circumstances in order to to consider design values as valid that otherwise would be considered incomplete. The information presented in this update is based on data a8er applying the substitution protocols.
Data Source: U.S. EPA's Air Quality System (AQS) as of July 7, 2009 (and later dates in isolated situations).Table5, 2007-2009 site listing



## Table 5. PM2.5 Site Listing, 2007-2009 AQS Data Query: 01/29/2011; Last updated; 2/15/2011

dva 2007 meannf ineannf ineannf state name county name cbsa name site 2009 2007 2008 2009 Georgia Walker Chattanooga,TN-GA 132950002 12.3 13.689065 11481596 10.704195 Tennessee Hamilton Chattanooga,TN-GA 470650031 12.6 14.932675 12.289345 10.475288 Tennessee Hamilton Chattanooga,TN-GA 470651011 113 14.221571 11.388125 9.519688 Tennessee Hamilton Chattanooga, TN-GA 470654002 12.7 15.045845 12.706962 10.470661
See Table 5 Definitions worksheet for description of columns

Page 1Table5, 2009-2011 site listing



# Final Table 5. Monitoring Site Listing for PM2.5, 2009-2011 AQS Data Query: 07/26/2012; Last updated: 07/26/2012

dva 2009 meannf ineannf ineannf state name countynaine cbsa name site 2011 2009 2010 2011 Georgia Walker County Chattanooga, TN-GA 132950002 10.1 10.704195 8.690015 10.771874 Tennessee Hamilton County Chattanooga, TN-GA 470650031 11.2 10.475288 12.025086 11.056173 Tennessee Hamilton County Chattanooga, TN-GA 470651011 11.0 9.519688 13.289762 10.289896 Teruiessee Hamilton County Chattanooga, TN-GA 470654002 11.1 10.470661 11.725836 11.072653 See Table 5 Definitions worlisheet for description of columns


### Note: When design values are used in a regulatory action, they are based on the latest information and valid data available at the time of that action, not the values published here.

Page 1

## Table 5. PM2.5Site Listing, 2010-2012

AQS Data Query: 07/10/2013; Last updated: 08/20/2013

State County CBSA Site 2010-2012 Annual Design Value (μg/m3) Annual means

110 'll 12 Georgia Walker Chattanooga, TN-GA 132950002 10.0 8.690015 10.771874 10.540603 Tennessee Hamilton Chattanooga, TN-GA 470650031 11.1 12.025086 11.056173 10.072903 Tennessee Hamilton Chattanooga, TN-GA 470651011 11.2 13.289762 10.289896 9.992292 Tennessee Hamilton Chattanooga, TN-GA 470654002 10.9 11.725836 11.072653 10.009848

Disclaimer: The information listed in this report and in these tables is intended for informational use only and does not constitute a regulatory determination by EPA as whether an area has attained a NAAQS. The information set forth in this report has no regulatory effect. To have regulatory effect, a final EPA determination as to whether an area has attained a NAAQS or attained a NAAQS as of its applicable attainment date can be accomplished only after rulemaking that provides an opportunity for notice and comment. No such determination for regulatory purposes exists in the absence of such rulemaking. This report does not constitute a proposed or final rulemaking.

## Table 6. PM2.5Site Design Value History

AQS Data Query; 07/10/2013; Last updated: 08/20/2013



### State County CBSA Site Annual Standard Design Values 1,2 

### 2007-2009

# 12008-2010

# 12009-2011

# 12010-2012 Georgia Walker Chattanooga, TN-GA 132950002 12.3 

### NV 10.6 10.1 10.0 

### Tennessee Hamilton Chattanooga, TN-GA 470650031 12.6 11.6 11.2 11.1 

### Tennessee Hamilton Chattanooga, TN-GA 470651011 11.7 11.4 11.0 11.2 

### Tennessee Hamilton Chattanooga, TN-GA 470654002 12.7 11.6 11.1 10.9

Notes: 1. In this table, all design values are calculated based on the rules specified in Appendix N for the 2012 PM2.5 NAAQS. The term "NV" denotes design values that are not valid in accordance with the 2012 NAAQS 2. Monitoring sites with an annual deesign value status of'X' hev been determined by EPA to represent unique microscale or middle scale locations are not used for comparison to the annual PM2.5 NAAQS. The 2012 revisions to 40 CFR 58 require a formal exclusion justification to be described in the annual State monitoring plan.


### Disclaimer: The information listed in this report and in these tables is intended for informational use only and does not constitute a regulatory determination by EPA as whether an area has attained a NAAQS. The information set forth in this report has no regulatory effect. To have regulatory effect, a final EPA determination as to whether an area has attained a NAAQS or attained a NAAQS as of its applicable attainment date can be accomplished only after rulemaking that provides an opportunity for notice and comment. No such determination for regulatory purposes exists in the absence of such rulemaking. This report does not constitute a proposed or final rulemaking.