UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III 1650 Arch Street Philadelphia, Pennsylvania 19103 - 2029
SUBJECT: Determination of Failure to Attain by 2005 and Determination of

Attainment by 2008 for the 1 - Hour Ozone National Ambie nt Air Quality Standards in the Baltimore Nonattainment Area in Maryland [EPA - R03 - OAR - 2011 - 0680]
– Technical Support Document Supplement FROM: Christopher Cripps, Project Officer /s/ May 23 , 2012 Office of Air Program Planning TO: File for Docket EPA
- R03
- OAR
- 2011
- 0680 THRU: Donna Mastro , Acting Associate Director /s/

Office of Air Program Planning Throughout this document, “we,” “us,” and “our” refer to the Environmental Protection Agency (EPA). This d ocument supplements the Techn ical Support Document “ Determination of Failure to Attain by 2005 and Determination of Attainment by 2008 for the 1
- Hour Ozone National Ambient Air Quality Standards in the Baltimore Nonattainment Area in Maryland” dated January 26, 2012 (Docket item numbe r EPA
- R03
- OAR
- 2011
- 0680
- 0008) (the January 26, 2012 TSD). In the January 26, 2012 TSD, compliance with the 1
- hour ozone NAAQS for the 2009 to 2011 period was computed using preliminary data, that is, data that had not been certified by the State of Mary land. On April 12, 2012, the Maryland Department of the Environment certified the 2011 air quality monitoring data for ozone as complete and quality
- assured. Refer to the letter dated April 19, 2012, from George (Tad) Aburn, Director, Air and Radiation M anagement Administration, Maryland Department of the Environment to Shawn M. Garvin, Regional Administrator, EPA Region III and attached reports. A copy of this document and attachments has been placed into the docket for this action. EP A has compared t he preliminary 2011 data and the final, quality assured and certified 2011 data for the Baltimore area and found that the certified 2011 ozone data has not changed. Refer to EPA AQS Database, “Quicklook Criteria Parameters,” Report Request ID 937336, Repo rt Code AMP450, dated December 13, 2011 which as attached to appendix A to the January 26, 2012 TSD and to EPA AQS Database, “Quicklook Criteria Parameters,” Report Request ID 990350, Report Code AMP450, dated May 8, 2012. A copy of the latter is attache d to this document.2

Therefore, the compliance determinations in Appendix A to and in Table 6 of the January 26, 2012 remain valid and are now based upon final 2009, 2010 and 2010 data. Table 6 is reproduced below: Table 6. Number and Average Number of Ozone Expected Exceedance Days per Year by Monitor in the Baltimore area 2009 to 2011 Monitor Information Annual Number of Expected Exceedance Days Average Number of Expected Exceedance Days Per Year Monitor
– AQS ID No. & “Short Name” 2009 2010 20 11 2009 - 2011 24
- 510
- 0054

– Furley 0.0 0.0 0.0 0.0 24
- 003
- 0014

– Davidsonville 0.0 0.0 0.0 0.0 24
- 005
- 1007

– Padonia 0.0 0.0 0.0 0.0 24
- 005
- 3001

– Essex 0.0 1.0 0.0 0.3 24
- 013
- 0001

– South Carroll 0.0 0.0 1.0 0.0 24
- 025
- 1001

– Edgewood 1.0 1.1 1 .0 1.0 24
- 025
- 9001

– Aldino 0.0 0.0 0.0 0.0 Source: EPA AQS Database, “Quicklook Criteria Parameters,” Report Request ID 843146, Report Code AMP450, dated March 3, 2011, for the 2009 to 2010 data and Report Request ID 990350, Report Code AMP450, dated Ma y 8, 2012 for the 2011 data . EPA can therefore determine that the Baltimore area is currently attaining the 1
- hour ozone standard. EPA’ s determination is based on the most recent three
- year periods of complete, quality
assured and certified data, 2008
- 20 10 and continuing in 2009
- 2011. Moreover, complete, quality
assured and certified data show that the Baltimore area has attained the 1
- hour ozone standard since the 2006
- 2008 monitoring period and for every three
- year period since that time.UNITED STATES ENVIRONMENTAL PROTECTION AGENCY QUICKLOOK CRITERIA PARAMETERS May. 8, 2012 Report Request ID: 990350 Report Code: AMP450

Selection Criteria Page 1 User ID: SKV

State County City

Site Parameter POC AQCR UAR CBSA CSA EPA Region Method Duration Begin Date End Date 24 24 24 24 24 24 003

005 013 025 027 510 44201

44201 44201 44201 44201 44201 1 1 1 1 1 1 GEOGRAPHIC SELECTIONS

SELECTED OPTIONS
EVENTS PROCESSING MERGE PDF FILES WORKFILE DELIMITER Option Type Option Value EXCLUDE REGIONALLY CONCURRED EVENTS

YES , SORT ORDER 1 2 3 4 5 6 7 Order Column

PARAMETER_CODE STATE_CODE COUNTY_CODE SITE_ID POC DATES EDT_ID GLOBAL DATES 2011 Start Date End Date 2011 Tribal Code

APPLICABLE STANDARDS Standard Description Ozone 1-hour Daily 2005May. 8, 2012

Note: The * indicates that the mean does not satisfy summary criteria. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICK LOOK REPORT (AMP450)

Page 1 of 4 EXCEPTIONAL DATA TYPES EDT DESCRIPTION 0 1 2 5 NO EVENTS EVENTS EXCLUDED EVENTS INCLUDED EVENTS WITH CONCURRENCE EXCLUDEDMay. 8, 2012

Note: The * indicates that the mean does not satisfy summary criteria. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICK LOOK REPORT (AMP450)

Page 2 of 4 Ozone (44201) Maryland Parts per million (007)

SITE ID P

O C PQAO CITY COUNTY ADDRESS YEAR METH VALID DAYS MEAS 1ST

MAX 1-HR CERT EDT 24-003-0014

24-005-1007

24-005-3001 24-013-0001 24-025-1001

24-025-9001 24-510-0054 1

1

1 1 1

1 1 1002

1002

1002 1002 1002

1002 1002 Not in a city

Cockeysville

Essex Not in a city Edgewood

Not in a city Baltimore Anne Arundel

Baltimore

Baltimore Carroll Harford

Harford Baltimore (City) Davidsonville Recreation Center, 3801 Queen Anne Bridge Road Padonia Elementary School, 9834 Greenside Drive 600 Dorsey Avenue 1300 W. Old Liberty Road Edgewood Chemical Biological Center (APG), Waehli Road 3560 Aldino Road Furley E.S. Recreational Center, 4633 Furley Avenue. 2011

2011

2011 2011 2011

2011 2011 047

091

047 047 091

047 091 208

195

203 210 209

201 203 .111

.113

.112 .099 .131

.114 .107 .110

.103

.109 .089 .121

.114 .106 0

0

0 0 0

0 0 2ND MAX 1-HR 1-HOUR NUM DAYS REQ 214

214

214 214 214

214 214 .102

.103

.106 .085 .118

.113 .094 3RD MAX 1-HR .098

.094

.103 .085 .118

.108 .092 4TH MAX 1-HR DAY MAX> STD 0

0

0 0 1

0 0 EST DAYS> STD 0.0

0.0

0.0 0.0 1.0

0.0 0.0 MISS DAYS< STD 1

2

6 2 3

2 1May. 8, 2012

Note: The * indicates that the mean does not satisfy summary criteria. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICK LOOK REPORT (AMP450)

Page 3 of 4 44201 44201 047

091 INSTRUMENTAL

INSTRUMENTAL ULTRA VIOLET ULTRAVIOLET RADIATION ABSORBTN PARAMETER METHOD

CODE COLLECTION METHOD ANALYSIS METHOD METHODS USED IN THIS REPORTMay. 8, 2012

Note: The * indicates that the mean does not satisfy summary criteria. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICK LOOK REPORT (AMP450)

Page 4 of 4 PQAOS USED IN THIS REPORT
PQAO AGENCY DESCRIPTION 1002 State Of Maryland Air Management Administration