UNITED STATES ENVIRONMENTAL PROTECTION AGENCY QUICKLOOK CRITERIA PARAMETERS Sep. 1, 2010 Report Request ID: 785858 Report Code: AMP450

Selection Criteria Page1 User ID:AGR

State County City

Site Parameter POC AQCR UAR CBSA CSA EPA Region Method Duration Begin Date End Date 30 053 0018 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS Parameter Classification Parameter Method Duration 88101 SELECTED OPTIONS EVENTS PROCESSING MERGE PDF FILES 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 2005 Start Date End Date 2009 Tribal

APPLICABLE STANDARDS Standard Description PM25 24-hour 2006 PM25 Annual 2006Sep. 1, 2010

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



### Page 1of 4 EXCEPTIONAL DATA TYPES EDT DESCRIPTION 0 1 2 5 NO EVENTS EVENTS EXCLUDED EVENTS INCLUDED EVENTS WITH CONCURRENCE EXCLUDEDSep. 1, 2010

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



### Page2of 4 PM2.5 - Local Conditions (88101) Montana Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAO CITY COUNTY ADDRESS YEAR METH #OBS 4TH MAX CERT EDT 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 1

1 1 1 1 2 2 2 2 2 0730 0730 0730 0730 0730 0730 0730 0730 0730 0730 Libby Libby Libby Libby Libby Libby Libby Libby Libby Libby Lincoln

Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY2005

2006 2007 2008 2009 2005 2006 2007 2008 2009 142 142 142 116 116 142 142 116 116 116 75.3

43.9 34.5 42.3 40.1 56.5 41.5 32.2 30.7 31.9 Y Y Y Y Y Y Y

Y Y 5 5 5 5 5 0 5 0 0 0 24-HOUR 98TH PERCENTILE VALUE 51.1 40.5 32.2 30.5 31.0 47.8 39.8 32.2 30.7 31.9 113 114 115 113 119 57 58 28 28 28 1ST

MAX 2ND

MAX 3RD

MAX 52.8 41.2 32.3 30.7 31.4 47.8 39.8 31.4 26.1 31.7 51.1

40.5 32.2 30.5 31.0 46.2 39.0 28.7 26.0 28.1 47.7

40.0 31.6 30.4 28.2 37.3 32.2 24.5 23.3 18.3 15.80 15.28 13.05 12.90 10.62 15.64 14.98 12.51* 12.35* 10.80 WTD ARITH MEANSep. 1, 2010

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



### Page3of 4 88101 88101 116

142 BGI Model PQ200 PM2.5 Sampler w/WINS

BGI Models PQ200-VSCC or PQ200A-VSCC GRAVIMETRIC Gravimetric PARAMETER METHOD

CODE COLLECTION METHOD ANALYSIS METHOD METHODS USED IN THIS REPORTSep. 1, 2010

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



### Page 4of 4 PQAOS USED IN THIS REPORT PQAO AGENCY DESCRIPTION 0730 Mt Dept Of Environmental Quality, Air Quality Division