UNITED STATES ENVIRONMENTAL PROTECTION AGENCY QUICKLOOK CRITERIA PARAMETERS May. 9, 2016 Report Request ID: 1444568 Report Code: AMP450

Selection Criteria Page 1 User ID:RMV

State County City Site Parameter POC AQCR UAR CBSA CSA EPA Region 22660 216 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS Parameter Classification Parameter Method Duration QUICK LOOK 88101 42101 42602 SELECTED OPTIONS

WORKFILE DELIMITER MERGE PDF FILES EVENTS PROCESSING AGENCY ROLE Option Type Option Value

, YES EXCLUDE REGIONALLY CONCURRED EVENTS

PQAO SORT ORDER

1 2 3 4 5 6 7 Order Column

PARAMETER_CODE STATE_CODE COUNTY_CODE SITE_ID POC DATES EDT_ID DATE CRITERIA

2007 Start Date End Date 2015 Tribal Code

APPLICABLE STANDARDS Standard Description CO 1-hour 1971 CO 8-hour 1971 NO2 1-hour NO2 Annual 1971 PM25 24-hour 2013 PM25 Annual 2013May. 9, 2016

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 14 EXCEPTIONAL DATA TYPES EDT DESCRIPTION 0 1 2 5 NO EVENTS EVENTS EXCLUDED EVENTS INCLUDED EVENTS WITH CONCURRENCE EXCLUDEDMay. 9, 2016

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 14 Carbon monoxide (42101) Colorado Parts per million (007)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METH # OBS OBS >8HR STD 1ST MAX 1-HR OBS

>1HR STD CERT and EVAL EDT 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-013-0009 08-013-0009 08-013-0009 08-013-0009 08-013-0009 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 1

1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 20240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Welby Welby Welby Welby Welby Welby Welby Welby Welby Longmont Longmont Longmont Longmont Longmont Denver Denver Denver Denver Denver Denver Denver Adams

Adams Adams Adams Adams Adams Adams Adams Adams Boulder Boulder Boulder Boulder Boulder Denver Denver Denver Denver Denver Denver Denver 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 440 MAIN ST. 440 MAIN ST. 440 MAIN ST. 440 MAIN ST. 440 MAIN ST. 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2007

2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 2007 2008 2009 2010 2011 2012 2013 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 054 8663 8385 8463 7041 8103 7877 8464 8547 8605 8588 8633 8417 8722 8616 8676 8707 8301 8401 8519 8679 8599 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.1 4.1 2.8 2.3 2.4 2.2 2.9 3.5 3.1 3.8 4.2 3.5 4.5 8.6 6.0 7.1 6.9 4.3 3.5 4.2 5.8 3.0

3.9 2.6 2.3 2.4 2.2 2.4 2.4 2.6 3.4 3.5 3.2 4.4 4.3 5.9 7.0 6.8 4.0 3.1 4.0 5.7 2.3 3.1 2.0 1.8 2.0 1.7 2.1 1.8 2.0 2.3 3.2 1.9 2.6 2.6 3.2 3.8 2.5 3.1 1.9 2.7 4.4 Y Y S S

Y Y 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1ST MAX 8-HR 2.1

2.4 1.9 1.8 1.6 1.3 2.1 1.7 1.8 1.9 2.7 1.6 1.9 2.1 2.8 3.1 2.2 2.4 1.8 2.0 2.5 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2ND MAX 1-HR 2ND MAX 8-HRMay. 9, 2016

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 14 Carbon monoxide (42101) Colorado Parts per million (007)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METH # OBS OBS >8HR STD 1ST MAX 1-HR OBS

>1HR STD CERT and EVAL EDT 08-031-0002 08-031-0002 08-031-0019 08-031-0019 08-031-0019 08-031-0019 08-031-0019 08-031-0025 08-031-0025 08-031-0026 08-031-0026 08-031-0026 08-031-0027 08-031-0027 08-031-0027 08-069-0010 08-069-1004 08-069-1004 08-069-1004 08-069-1004 08-069-1004 2

2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Denver Denver Denver Denver Denver Denver Denver Denver Denver Not in a city Not in a city Not in a city Denver Denver Denver Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Denver

Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Larimer Larimer Larimer Larimer Larimer Larimer 2105 BROADWAY 2105 BROADWAY 1300 Blake St. 1300 Blake St. 1300 Blake St. 1300 Blake St. 1300 Blake St. 678 S. JASON ST. 678 S. JASON ST. 4545 Navajo St. 4545 Navajo St. 4545 Navajo St. 971 Yuma Street 971 Yuma Street 971 Yuma Street 4407 S. COLLEGE AVE. 708 S. Mason St. 708 S. Mason St. 708 S. Mason St. 708 S. Mason St. 708 S. Mason St. 2014

2015 2007 2008 2009 2010 2011 2011 2012 2013 2014 2015 2013 2014 2015 2007 2007 2008 2009 2010 2011 054 054 054 054 054 054 054 554 554 554 554 554 554 554 554 054 054 054 054 054 054 8674 8489 8412 8662 5776 7936 8283 7533 5612 7726 8654 8376 4839 8673 8700 3898 8531 8682 8590 8610 8664 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.1 2.8 4.2 4.8 3.6 3.4 2.7 2.450 2.080 3.860 2.890 2.850 3.080 3.270 2.910 2.9 3.8 5.1 3.5 2.9 2.8 3.0

2.7 4.1 4.5 3.6 3.3 2.7 2.390 2.070 3.290 2.710 2.780 3.040 3.240 2.810 2.8 3.5 5.0 3.0 2.9 2.5 2.2

2.4 2.5 3.1 1.8 2.7 1.8 1.5 1.5 2.6 1.9 2.4 2.5 2.5 2.4 1.7 2.9 3.8 1.9 2.0 1.5 S S

Y Y S S Y S S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1ST MAX 8-HR 2.0

2.0 2.4 3.0 1.8 2.2 1.7 1.5 1.2 2.2 1.9 1.6 2.1 2.4 2.0 1.6 2.4 3.0 1.8 1.7 1.3 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2ND MAX 1-HR 2ND MAX 8-HRMay. 9, 2016

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 14 Carbon monoxide (42101) Colorado Parts per million (007)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METH # OBS OBS >8HR STD 1ST MAX 1-HR OBS

>1HR STD CERT and EVAL EDT 08-069-1004 08-069-1004 08-069-1004 08-069-1004 08-123-0009 08-123-0010 08-123-0010 08-123-0010 08-123-0010 08-123-0010 08-123-0010 08-123-0010 08-123-0010 08-123-0010 1

1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Fort Collins Fort Collins Fort Collins Fort Collins Greeley Greeley Greeley Greeley Greeley Greeley Greeley Greeley Greeley Greeley Larimer

Larimer Larimer Larimer Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld 708 S. Mason St. 708 S. Mason St. 708 S. Mason St. 708 S. Mason St. 3101 35TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 905 10TH AVE. 2012

2013 2014 2015 2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 054 054 054 054 054 054 054 054 054 054 054 054 054 054 8626 8673 8704 8227 3588 8710 8707 8652 8720 8557 8704 8670 8714 3816 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.7 2.9 2.7 4.7 3.7 4.0 5.0 4.3 4.2 2.7 3.2 3.3 2.7 3.3 2.5

2.5 2.6 4.5 1.2 3.9 3.7 3.6 3.9 2.5 3.2 3.0 2.7 3.2 1.8

1.7 1.6 2.1 1.0 2.5 2.3 2.3 2.5 2.0 2.3 1.7 1.7 2.8 Y Y S S S

Y Y S S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1ST MAX 8-HR 1.7

1.4 1.4 1.4 .9 2.4 2.2 2.1 2.3 1.5 1.6 1.7 1.7 1.6 0

0 0 0 0 0 0 0 0 0 0 0 0 0 2ND MAX 1-HR 2ND MAX 8-HRMay. 9, 2016

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



### Page 5 of 14 Nitrogen dioxide (NO2) (42602) Colorado Parts per billion (008)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METH OBS COMP QTRS CERT and EVAL EDT 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-001-3001 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0026 08-031-0026 08-031-0027 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Welby Welby Welby Welby Welby Welby Welby Welby Welby Denver Denver Denver Denver Denver Denver Denver Denver Denver Not in a city Not in a city Denver Adams

Adams Adams Adams Adams Adams Adams Adams Adams Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 3174 E. 78TH AVE. 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 4545 Navajo St. 4545 Navajo St. 971 Yuma Street2007

2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 2014 2015 2013 099 099 099 099 099 099 099 099 000 099 099 000 074 099 099 099 599 599 212 212 200 8044 7536 7360 6894 7825 7037 7796 8257 8083 7621 3044 1225 7881 7250 8123 8239 8232 8272 3826 7836 4687 4 4 3 3 4 4 4 4 4 4 1 0 4 3 4 4 4 4 2 4 2 80.0 71.0 63.0 56.0 64.0 64.0 58.0 66.0 61.0 83.0 88.0 80.0 71.0 72.0 72.0 67.6 76.6 71.6 63.5 59.9 61.7 20.42 17.19 14.29 16.01 18.14 18.90 16.93 18.36 17.51 27.12 20.42* 30.84* 27.70 24.43 24.52 24.14 22.74 21.98 21.22* 20.39 25.34* Y

Y S S

Y Y S S S S N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ARITH MEAN 98TH PCTL PCT

COMP 92 86 84 79 89 80 89 94 92 87 35 14 90 83 92 94 94 94 44 89 54 1ST MAX 1-HR 110.0 85.0 84.0 65.0 78.0 77.0 88.0 106.0 72.0 103.0 88.0 80.0 85.0 94.0 85.0 86.3 136.4 94.9 70.6 67.5 70.8 94.0

85.0 72.0 63.0 75.0 75.0 71.0 83.0 69.0 102.0 88.0 69.0 80.0 93.0 76.0 82.6 86.3 77.8 69.8 65.8 64.9 2ND MAX 1-HRMay. 9, 2016

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



### Page 6 of 14 Nitrogen dioxide (NO2) (42602) Colorado Parts per billion (008)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METH OBS COMP QTRS CERT and EVAL EDT 08-031-0027 08-031-0027 08-031-0028 08-031-0028 08-093-0002 1

1 1 2 10240 0240 0240 0240 1380 Denver Denver Denver Denver Not in a city Denver

Denver Denver Denver Park 971 Yuma Street 971 Yuma Street 4903 Acoma St. 4903 Acoma St. Fairplay, Colorado 2014

2015 2015 2015 2015 200 000 099 212 099 8083 8129 2094 2090 6185 4 4 1 1 3 69.6 63.8 73.8 71.7 5.4 25.45

26.97 34.32* 33.16* .38* S S S S 0 0 0 0 0 ARITH MEAN 98TH PCTL PCT

COMP 92 93 24 24 71 1ST MAX 1-HR 96.8 81.1 77.8 72.7 9.5 85.8

71.3 73.8 71.7 8.6 2ND MAX 1-HRMay. 9, 2016

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



### Page 7 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 08-001-0006 1

1 1 1 1 1 1 1 1 2 2 2 2 2 2 20240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce City Commerce CityAdams

Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams Adams 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 7101 BIRCH ST. 2007

2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 2012 2013 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 50.7

34.4 28.5 25.4 41.9 33.7 31.2 43.2 23.1 48.8 21.6 15.0 23.8 20.9 25.8 31.6 Y Y S S

Y Y 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 24-HOUR 98TH PERCENTILE VALUE 40.1 24.9 21.7 22.2 19.5 25.4 23.0 28.2 23.1 40.3 20.3 14.5 23.3 18.8 25.8 26.5 120 119 118 115 121 103 105 117 44 59 61 58 60 57 50 60 1ST

MAX 2ND

MAX 3RD

MAX 48.7 26.7 23.6 24.3 20.0 28.7 26.4 42.9 17.4 40.3 20.3 14.5 23.3 18.8 16.4 26.5 40.1

24.9 21.7 22.2 19.5 25.4 23.0 28.2 14.7 25.0 18.6 12.7 19.3 13.2 15.5 21.0 30.8

22.9 20.0 21.7 18.3 19.3 21.4 24.8 13.0 19.8 14.2 11.7 15.9 13.2 13.4 18.7 10.72 9.46 8.12 8.62 7.55 8.60* 7.97* 8.97 6.63* 10.50 8.28 7.47 8.01 7.23 7.85* 8.70 WTD ARITH MEANMay. 9, 2016

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



### Page 8 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-001-0006 08-001-0006 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-005-0005 08-013-0003 08-013-0003 08-013-0003 08-013-0003 08-013-0003 2

2 1 1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Commerce City Commerce City Littleton Littleton Littleton Littleton Littleton Littleton Littleton Littleton Littleton Longmont Longmont Longmont Longmont Longmont Adams

Adams Arapahoe Arapahoe Arapahoe Arapahoe Arapahoe Arapahoe Arapahoe Arapahoe Arapahoe Boulder Boulder Boulder Boulder Boulder 7101 BIRCH ST. 7101 BIRCH ST. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 6190 S. SANTA FE DR. 350 KIMBARK ST. 350 KIMBARK ST. 350 KIMBARK ST. 350 KIMBARK ST. 350 KIMBARK ST. 2014

2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 43.2

23.4 60.2 21.1 22.6 22.2 22.4 34.7 31.8 21.7 25.3 34.2 27.0 24.0 27.2 23.8 S S

Y Y S S 0 0 0 0 5 0 0 0 0 0 0 0 0 5 0 0 24-HOUR 98TH PERCENTILE VALUE 26.4 23.4 21.9 16.2 16.4 15.0 12.2 28.1 21.8 17.2 22.9 28.0 23.0 19.0 23.0 18.8 59 23 120 118 114 111 113 99 121 119 115 121 116 120 120 118 1ST

MAX 2ND

MAX 3RD

MAX 26.4 19.2 26.9 18.3 21.7 15.1 12.3 28.1 27.3 19.7 24.2 28.7 24.5 22.6 24.7 19.4 22.8

16.9 21.9 16.2 16.4 15.0 12.2 16.3 21.8 17.2 22.9 28.0 23.0 19.0 23.0 18.8 21.9

11.7 21.2 14.5 14.0 13.9 12.1 14.6 19.7 16.2 19.2 27.8 20.5 18.8 17.0 18.4 9.35 7.34* 8.09 7.18 6.43 6.51 5.93 6.76* 6.80 6.00 6.07 8.86 7.71 7.29 7.09 6.39 WTD ARITH MEANMay. 9, 2016

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



### Page 9 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-013-0003 08-013-0003 08-013-0003 08-013-0003 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-013-0012 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Longmont Longmont Longmont Longmont Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Denver Denver Denver Denver Denver Boulder

Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Boulder Denver Denver Denver Denver Denver 350 KIMBARK ST. 350 KIMBARK ST. 350 KIMBARK ST. 350 KIMBARK ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2440 PEARL ST. 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY2012

2013 2014 2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 35.7

23.6 45.8 26.0 26.3 24.9 39.4 44.7 25.0 28.5 24.9 44.8 24.3 60.5 32.7 29.5 26.0 31.6 Y Y S S

Y Y S S 0 0 0 0 0 0 5 5 0 0 0 0 0 0 0 5 0 0 24-HOUR 98TH PERCENTILE VALUE 27.6 22.7 26.2 23.4 25.0 17.1 15.1 22.2 12.8 17.1 17.0 15.8 18.4 29.1 20.4 18.0 19.0 19.4 102 122 118 121 117 122 119 121 101 101 120 121 119 354 360 360 352 354 1ST

MAX 2ND

MAX 3RD

MAX 31.5 22.9 45.3 25.0 26.0 19.7 15.3 22.4 12.9 17.1 18.9 17.8 20.5 53.6 30.3 25.7 25.3 28.0 27.6

22.7 26.2 23.4 25.0 17.1 15.1 22.2 12.8 17.1 17.0 15.8 18.4 40.6 27.0 22.9 24.9 25.0 17.7

17.2 19.9 19.3 20.7 14.5 14.9 19.6 12.7 16.6 16.5 14.8 14.6 38.8 22.7 22.4 24.2 25.0 7.20* 7.05 7.45 6.51 7.40 6.48 6.43 6.57 5.82* 6.17* 6.02 6.06 5.56 9.84 8.04 7.52 7.81 7.51 WTD ARITH MEANMay. 9, 2016

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



### Page 10 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0002 08-031-0023 08-031-0023 08-031-0023 08-031-0023 08-031-0023 08-031-0023 1

1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver

Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 2105 BROADWAY 4650 Columbine St. 4650 Columbine St. 4650 Columbine St. 4650 Columbine St. 4650 Columbine St. 4650 Columbine St.2012

2013 2014 2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 2013 2014 2015 2007 2008 2009 2010 2011 2012 145 145 145 145 145 145 145 145 145 145 145 145 145 195 195 195 145 145 145 145 145 145 32.3

28.5 45.2 46.3 61.4 20.5 24.0 23.4 16.7 36.5 29.9 42.7 26.8 36.4 44.3 42.7 55.2 30.7 26.6 23.2 33.7 33.5 Y Y S S

Y N S S N S S

Y 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 24-HOUR 98TH PERCENTILE VALUE 18.8 20.0 21.5 22.6 37.2 14.4 13.8 22.8 15.1 36.5 28.6 21.3 25.3 27.5 23.7 20.6 30.0 23.6 17.3 18.9 19.7 20.8 301 339 354 350 57 60 61 60 61 49 57 58 60 270 365 365 341 352 360 315 344 299 1ST

MAX 2ND

MAX 3RD

MAX 32.2 27.2 32.9 45.1 37.2 14.4 13.8 22.8 15.1 18.2 28.6 21.3 25.3 36.0 39.0 33.7 50.2 29.0 25.5 23.1 30.4 31.5 27.6

22.7 32.4 29.2 29.7 13.2 13.2 19.1 15.0 14.8 18.9 20.3 19.6 30.2 37.5 27.5 42.0 27.9 24.2 21.4 30.1 24.1 27.5

21.0 29.3 26.0 24.0 12.8 12.7 17.9 13.9 14.1 18.3 19.2 15.0 30.2 28.5 24.0 41.9 26.7 22.0 20.7 27.1 23.9 7.95* 7.49 7.35 7.42 10.73 7.68 7.42 7.84 7.19 7.89* 8.53 8.50 7.22 8.84* 7.62 6.92 10.17 8.21 7.66 7.83 7.04 7.85* WTD ARITH MEANMay. 9, 2016

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



### Page 11 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-031-0025 08-031-0025 08-031-0025 08-031-0025 08-031-0025 08-031-0025 08-031-0026 08-031-0026 08-031-0026 08-031-0026 08-031-0026 08-031-0027 08-031-0027 08-031-0027 08-031-0027 08-031-0028 1

1 1 1 1 1 1 1 1 1 3 1 1 3 3 30240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Denver Denver Denver Denver Denver Denver Not in a city Not in a city Not in a city Not in a city Not in a city Denver Denver Denver Denver Denver Denver

Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver Denver 678 S. JASON ST. 678 S. JASON ST. 678 S. JASON ST. 678 S. JASON ST. 678 S. JASON ST. 678 S. JASON ST. 4545 Navajo St. 4545 Navajo St. 4545 Navajo St. 4545 Navajo St. 4545 Navajo St. 971 Yuma Street 971 Yuma Street 971 Yuma Street 971 Yuma Street 4903 Acoma St. 2007

2008 2009 2010 2011 2012 2012 2013 2014 2015 2015 2014 2015 2014 2015 2015 145 145 145 145 145 145 145 145 145 145 195 145 145 195 195 195 19.9

26.9 25.0 24.8 30.3 35.2 33.9 28.3 45.3 27.5 38.3 48.3 29.1 57.0 53.0 39.4 N Y Y S S S S S S S S 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 24-HOUR 98TH PERCENTILE VALUE 19.9 19.4 19.3 17.1 16.5 17.7 33.9 21.5 26.0 24.1 19.8 25.1 26.0 30.1 26.2 32.5 30 120 120 118 120 58 32 122 120 120 252 118 119 345 365 76 1ST

MAX 2ND

MAX 3RD

MAX 19.8 20.0 23.2 24.7 21.5 17.7 13.8 23.5 36.8 25.5 25.8 34.9 26.0 44.3 48.7 32.5 18.8

19.4 19.3 17.1 16.5 16.2 13.2 21.5 26.0 24.1 25.7 25.1 26.0 35.3 35.9 28.0 17.3

19.1 15.1 16.7 15.0 14.7 11.7 20.0 21.7 19.3 24.2 21.6 22.1 34.4 35.7 27.9 9.87* 8.08 7.25 7.58 6.92 8.18* 6.94* 7.31 8.00 7.00 7.34* 9.44 8.95 9.92 9.95 14.05* WTD ARITH MEANMay. 9, 2016

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



### Page 12 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0004

08-035-0005

08-035-0005 1

1

1

1

1

1

1

1

1

1

10240

0240

0240

0240

0240

0240

0240

0240

0240

0240

0240 Roxborough Park Roxborough Park Roxborough Park Roxborough Park Roxborough Park Roxborough Park Roxborough Park Roxborough Park Roxborough Park Not in a city Not in a cityDouglas

Douglas Douglas Douglas Douglas Douglas Douglas Douglas Douglas Douglas Douglas 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. 11500 N. Roxborough Park Rd. Castlewood Canyon State Park Castlewood Canyon State Park 2007

2008

2009

2010

2011

2012

2013

2014

2015

2013

2014 145

145

145

145

145

145

145

145

145

143

143 46.8

15.1

21.7

19.4

21.7

32.7

27.8

44.9

26.0

13.6

14.8 Y

Y

S

S

N

S 0

0

5

0

0

0

0

0

0

0

0 24-HOUR 98TH PERCENTILE VALUE 19.4

13.3

18.2

12.5

16.0

19.7

17.3

13.0

20.2

13.6

6.6 118

121

120

119

119

101

120

116

105

6

57 1ST

MAX 2ND

MAX 3RD

MAX 23.7

14.5

21.2

16.9

19.5

24.2

17.3

22.6

22.7

5.8

6.6 19.4

13.3

18.2

12.5

16.0

19.7

17.3

13.0

20.2

5.8

6.0 18.2

12.6

15.7

12.0

13.9

16.0

14.8

12.8

14.3

3.7

5.8 6.80

5.80

5.70

5.75

5.60

6.05*

5.61

5.61

5.23*

5.33*

3.26 WTD ARITH MEANMay. 9, 2016

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



### Page 13 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-039-0001 08-039-0001 08-039-0001 08-039-0001 08-039-0001 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-069-0009 08-093-0002 1

1 1 1 1 1 1 1 1 1 1 1 1 1 3 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 1380 Not in a city Not in a city Not in a city Not in a city Not in a city Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Fort Collins Not in a cityElbert

Elbert Elbert Elbert Elbert Larimer Larimer Larimer Larimer Larimer Larimer Larimer Larimer Larimer Larimer Park 24950 BEN KELLY RD 24950 BEN KELLY RD 24950 BEN KELLY RD 24950 BEN KELLY RD 24950 BEN KELLY RD 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. 251 EDISON DR. Fairplay, Colorado 2007

2008 2009 2010 2011 2007 2008 2009 2010 2011 2012 2013 2014 2015 2015 2015 143 143 000 143 143 145 145 145 145 145 145 145 145 145 195 183 12.5

10.9 10.5 13.4 7.7 27.9 24.8 28.7 27.7 30.0 30.5 27.8 38.6 26.5 75.4 24.5 Y Y S S S 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 24-HOUR 98TH PERCENTILE VALUE 12.5 10.7 9.7 9.3 7.7 19.9 18.2 16.6 21.5 15.1 26.2 17.7 20.0 23.7 27.6 10.9 48 60 55 59 15 121 120 118 122 111 103 119 121 118 189 257 1ST

MAX 2ND

MAX 3RD

MAX 12.4 10.7 9.7 9.3 7.0 22.7 21.2 18.5 23.4 18.0 26.6 19.0 34.0 24.7 36.7 16.5 11.1

10.0 8.1 8.7 4.6 19.9 18.2 16.6 21.5 15.1 26.2 17.7 20.0 23.7 29.4 15.9 9.4

9.7 7.1 8.5 3.8 19.4 16.8 16.1 15.7 13.6 23.4 17.6 18.4 16.7 27.6 14.0 4.83* 4.32 3.91 4.29 3.80* 7.96 6.66 6.78 6.48 5.70 7.31* 6.81 6.45 6.12 8.17* 3.24* WTD ARITH MEANMay. 9, 2016

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



### Page 14 of 14 PM2.5 - Local Conditions (88101) Colorado Micrograms/cubic meter (LC) (105)

SITE ID P

O C PQAOCITY COUNTY ADDRESS YEAR METHNUM CRED DAYS 4TH MAX CERT and EVAL EDT 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0006 08-123-0008 08-123-0008 08-123-0008 08-123-0008 08-123-0008 08-123-0008 08-123-0008 08-123-0008 08-123-0008 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 0240 Greeley Greeley Greeley Greeley Greeley Greeley Greeley Greeley Greeley Platteville Platteville Platteville Platteville Platteville Platteville Platteville Platteville Platteville Weld

Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld Weld 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1516 HOSPITAL RD. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST. 1004 MAIN ST.2007

2008 2009 2010 2011 2012 2013 2014 2015 2007 2008 2009 2010 2011 2012 2013 2014 2015 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 145 45.3

25.2 38.2 33.2 28.7 44.3 28.2 43.6 30.5 51.0 25.5 26.6 26.5 29.8 48.0 26.0 43.4 30.7 Y Y S S

Y Y S S 0 0 5 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 24-HOUR 98TH PERCENTILE VALUE 28.5 20.0 25.7 20.4 22.5 32.0 20.5 26.5 25.8 31.0 23.2 23.0 17.2 20.4 21.5 19.7 32.3 29.2 117 115 119 122 119 100 120 114 104 105 116 118 113 102 98 115 113 100 1ST

MAX 2ND

MAX 3RD

MAX 30.2 25.2 27.7 29.7 26.9 32.0 22.0 35.2 28.3 39.7 24.0 23.3 25.1 21.0 21.5 23.1 36.2 29.2 28.5

20.0 25.7 20.4 22.5 21.5 20.5 26.5 25.8 31.0 23.2 23.0 17.2 20.4 21.4 19.7 32.3 24.1 28.4

19.3 24.1 18.4 18.7 19.7 17.9 22.7 24.4 30.0 21.8 22.3 16.5 16.4 18.4 18.5 24.7 20.9 9.18 7.71 7.83 7.29 6.66 7.90* 7.17 7.48 7.31* 10.30* 8.23 7.51 7.62 7.36* 7.82* 7.14 8.11 8.13* WTD ARITH MEANMay. 9, 2016

Note: These reported values do not reflect the combination of 14129 and 85129 and validation substitution tests utilized for Design Value Calculations UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

AIR QUALITY SYSTEM QUICK LOOK REPORT (AMP450) Lead (TSP) LCMay. 9, 2016

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

42101 42101 42602 42602 42602 42602 42602 42602 88101 88101 88101 88101 88101 054

554 000 074 099 200 212 599 000 143 145 183 195 INSTRUMENTAL

INSTRUMENTAL MULTIPLE METHODS INSTRUMENTAL INSTRUMENTAL Teledyne-API Model 200EUP or T200UP Teledyne Model T500U Instrumental MULTIPLE METHODS R & P Model 2000 PM-2.5 Air Sampler w/VSCC R & P Model 2025 PM-2.5 Sequential Air Sampler Thermo Scientific 5014i or FH62C14-DHS w/VSCC GRIMM EDM Model 180 with naphion dryer NONDISPERSIVE INFRARED Gas Filter Correlation Thermo Electron 48i-TLE MULTIPLE METHODS CHEMILUMINESCENCE GAS PHASE CHEMILUMINESCENCE Photolytic-Chemiluminescence Cavity Attenuated Phase Shift Spectroscopy Chemiluminescence Teledyne API 200 EU/501 MULTIPLE METHODS Gravimetric Gravimetric Beta Attenuation Laser Light Scattering PARAMETER METHOD

CODE COLLECTION METHOD ANALYSIS METHOD METHODS USED IN THIS REPORTMay. 9, 2016

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

PQAOS USED IN THIS REPORT

PQAO AGENCY DESCRIPTION 0240 1380 Colorado Department of Public Health And Environment Colorado Bureau of Land ManagementMay. 9, 2016

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

M N

S

U

X Y The monitoring organization has revised data from this monitor since the

most recent certification letter received from the state. The certifying agency has submitted the certification letter and required summary reports, but the certifying agency and/or EPA has determined that issues regarding the quality of the ambient concentration data cannot be resolved due to data completeness, the lack of performed quality assurance checks or the results of uncertainty statistics shown in the AMP255 report or the certification and quality assurance report. The certifying agency has submitted the certification letter and required summary reports. A value of "S" conveys no Regional assessment regarding data quality per se. This flag will remain until the Region provides an "N" or "Y" concurrence flag. Uncertified. The certifying agency did not submit a required certification letter and summary reports for this monitor even though the due date has passed, or the state's certification letter specifically did not apply the certification to this monitor. Certification is not required by 40 CFR 58.15 and no conditions apply to be the basis for assigning another flag value The certifying agency has submitted a certification letter, and EPA has no unresolved reservations about data quality (after reviewing the letter, the attached summary reports, the amount of quality assurance data submitted to AQS, the quality statistics, and the highest reported concentrations). MEANING CERTIFICATION EVALUATION AND CONCURRENCE FLAG MEANINGS

FLAG