UNITED STATES ENVIRONMENTAL PROTECTION AGENCY QUICKLOOK CRITERIA PARAMETERS Jan. 11, 2011 Report Request ID: 824732 Report Code: AMP450

Selection Criteria Page 1 User ID:AGR

State County City

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

053 053 0012

0018 0018 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS Parameter Classification Parameter Method Duration 81102 PQAO SELECTIONS Mt Dept Of Environmental Quality, Air Quality Division 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 1992 Start Date End Date 2009 Tribal

APPLICABLE STANDARDS Standard Description PM10 24-hour 2006Jan. 11, 2011

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



### Page 1of6 EXCEPTIONAL DATA TYPES EDT DESCRIPTION 0 1 2 5 NO EVENTS EVENTS EXCLUDED EVENTS INCLUDED EVENTS WITH CONCURRENCE EXCLUDEDJan. 11, 2011

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



### Page2of6 PM10 Total 0-10um STP (81102) Montana Micrograms/cubic meter (25 C) (001)

SITE ID P

O C PQAO CITY COUNTY ADDRESS YEAR METH #OBS 4TH MAX CERTEDT 30-053-0012 30-053-0012 30-053-0012 30-053-0012 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 2

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

Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln Lincoln LINCOLN CO COURTHOUSE,41 8 MINERAL AVE LINCOLN CO COURTHOUSE,41 8 MINERAL AVE LINCOLN CO COURTHOUSE,41 8 MINERAL AVE LINCOLN CO COURTHOUSE,41 8 MINERAL AVE 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 - LIBBY1992

1993 1994 1995 1993 1994 1995 1996 1997 1998 1999 064

064 064 064 079 079 079 079 079 079 079 139 104 105 93 99 119 87 113 86 121 82 Y Y Y Y Y Y Y Y Y Y Y 0 0 0 0 0 0 0 0 0 0 0 24-HOUR VALID DAYS 152 122 122 183 365 365 365 366 365 365 365 DAY MAX >150 0 0 0 0 0 0 0 0 0 0 0 148 114 117 40 2014 8400 8543 8498 8430 8471 8193 %OBS 96 93 96 22 23 96 98 97 99 99 95 1ST MAX 2ND MAX 3RD MAX 131 89 102 89 89 119 87 93 84 106 74 121 84 99 88 86 112 86 90 83 103 66 106 83 97 83 80 108 83 86 81 101 64 EST

DAYS >150 0 0 0 0 0 0 0 0 0 0 0 43.5 40.5 37.2 44.3* 45.1* 35.1 28.0 30.3 29.4 29.4 25.6 WTD ARITH MEAN 146 114 117 40 84 350 358 354 361 361 347 NUM REQJan. 11, 2011

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



### Page3of6 PM10 Total 0-10um STP (81102) Montana Micrograms/cubic meter (25 C) (001)

SITE ID P

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

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

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 - LIBBY COUNTY COURTHOUSE ANNEX - LIBBY2000

2001 2002 2003 2004 2005 2006 2007 2008 2009 2002 079

079 079 000 122 122 122 122 122 122 125 93 107 73 91 81 126 100 104 86 62 110 Y N Y Y Y Y Y Y

Y Y 0 0 0 5 0 5 5 5 5 5 0 24-HOUR VALID DAYS 366 365 365 365 366 365 365 365 366 365 61 DAY MAX >150 0 0 0 0 0 0 0 0 0 0 0 8442 7475 8533 8524 8627 8345 8485 8328 8672 8558 13 %OBS 98 86 99 96 98 96 96 95 99 98 21 1ST MAX 2ND MAX 3RD MAX 68 95 67 74 78 99 99 77 84 47 63 64 94 67 74 78 92 89 70 79 47 58 63 89 64 72 73 92 86 69 77 46 48 EST

DAYS >150 0 0 0 0 0 0 0 0 0 0 0 25.0 25.7* 23.9 24.5 28.0 29.5 27.7 24.8 23.9 21.2 41.1* WTD ARITH MEAN 357 315 360 351 360 349 352 347 364 356 13 NUM REQJan. 11, 2011

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



### Page 4of6 PM10 Total 0-10um STP (81102) Montana Micrograms/cubic meter (25 C) (001)

SITE ID P

O C PQAO CITY COUNTY ADDRESS YEAR METH #OBS 4TH MAX CERTEDT 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 30-053-0018 2

2 2 2 2 2 0730 0730 0730 0730 0730 0730 Libby Libby Libby Libby Libby Libby 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 - LIBBY2003

2004 2005 2006 2007 2008 125

125 125 125 125 125 73 73 103 70 94 76 Y Y Y Y Y 5 0 0 5 5 0 24-HOUR VALID DAYS 61 61 61 61 60 61 DAY MAX >150 0 0 0 0 0 0 60 57 57 55 56 16 %OBS 98 93 93 90 93 26 1ST MAX 2ND MAX 3RD MAX 64 57 68 47 65 42 62 55 58 45 48 42 54 50 55 43 44 34 EST

DAYS >150 0 0 0 0 0 0 27.1 23.6 24.7 24.8* 24.5 28.3* WTD ARITH MEAN 60 57 57 55 56 16 NUM REQJan. 11, 2011

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



### Page5of6 81102 81102 81102 81102 81102 000

064 079 122 125 MULTIPLE METHODS

HI-VOL-SA/GMW-321-B INSTRUMENTAL-R&P SA246B-INLET INSTRUMENT MET ONE 4 MODELS BGI Inc. Model PQ200 PM10 MULTIPLE METHODS GRAVIMETRIC TEOM-GRAVIMETRIC BETA ATTENUATION Gravimetric PARAMETER METHOD

CODE COLLECTION METHOD ANALYSIS METHOD METHODS USED IN THIS REPORTJan. 11, 2011

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



### Page6of6 PQAOS USED IN THIS REPORT PQAO AGENCY DESCRIPTION 0730 Mt Dept Of Environmental Quality, Air Quality Division