UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DESIGN VALUE REPORT

Mar. 23, 2015 Report Request ID: 1310345 Report Code: AMP480

Selection Criteria Page 1 User ID: FDA

State County City Site Parameter POC AQCR UAR CBSA CSA EPA Region 30 053 0018 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS
Parameter Classification Parameter Method Duration
DESIGN VALUE 88101

SELECTED OPTIONS

SINGLE EVENT PROCESSING WORKFILE DELIMITER USER SITE METADATA MERGE PDF FILES QUARTERLY DATA IN WORKFILE

AGENCY ROLE Option Type Option Value
EXCLUDE REGIONALLY CONCURRED EVENTS

, STREET ADDRESS YES NO PQAO
DATE CRITERIA

2009 Start Date End Date 2014 Tribal Code

APPLICABLE STANDARDS Standard Description PM25 24-hour 2013 PM25 Annual 2013UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 1 of 8UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 2 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2009

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2009 2008 2007

30-053-0018 418 Mineral Ave 120 4 31.4 10.7 Y 113 4 30.5 12.9 Y 115 4 32.2 13.0 Y 31 Y 12.2 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 3 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2010

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2010 2009 2008

30-053-0018 418 Mineral Ave 122 4 31.6 11.3 120 4 31.4 10.7 Y 113 4 30.5 12.9 Y 31 Y 11.7 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 4 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2011

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2011 2010 2009

30-053-0018 418 Mineral Ave 160 3 29.8* 12.0 122 4 31.6 11.3 120 4 31.4 10.7 Y 31 N 11.4 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 5 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2012

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2012 2011 2010

30-053-0018 418 Mineral Ave 357 4 27.0 11.3 Y 160 3 29.8* 12.0 122 4 31.6 11.3 29 N 11.5 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 6 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2013

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2013 2012 2011

30-053-0018 418 Mineral Ave 360 4 29.6 10.9 Y 357 4 27.0 11.3 Y 160 3 29.8* 12.0 29 N 11.4 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 7 of 8 

### Pollutant: Standard Units: NAAQS Standard: Statistic: Statistic: Site-LevelPM2.5 - Local Conditions(88101) Micrograms/cubic meter (LC)(105) PM25 24-hour 2013 / PM25 Annual 2013 Annual Weighted Mean Annual 98th Percentile Level: Level: Design Value Year: 2014

REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
12 35 State Name: Montana

Site_ID / STREET ADDRESS | | | Cred. Days Comp. Qrtrs Wtd.

Mean 98th Perctil Cert&

Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert& Eval | | | Cred. Days Comp. Qrtrs 98th Perctil Wtd.

Mean Cert&

Eval | | |Design Value Valid

Ind. | | |Design Value Valid

Ind. 24-Hour Annual 2014 2013 2012

30-053-0018 418 Mineral Ave 365 4 25.1 9.3 Y 360 4 29.6 10.9 Y 357 4 27.0 11.3 Y 27 Y 10.5 YUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 23, 2015

Notes:1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*').
Page 8 of 8 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