UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DESIGN VALUE REPORT
Mar. 4, 2015 Report Request ID: 1303209 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
SELECTED OPTIONS

WORKFILE DELIMITER USER SITE METADATA MERGE PDF FILES QUARTERLY DATA IN WORKFILE

AGENCY ROLE SINGLE EVENT PROCESSING Option Type Option Value

, STREET ADDRESS YES NO PQAO EXCLUDE REGIONALLY CONCURRED EVENTS
DATE CRITERIA

2014 Start Date End Date 2014 Tribal Code

APPLICABLE STANDARDS Standard Description Lead 3-Month 2009 NO2 1-hour Ozone 8-Hour 2008 PM10 24-hour 2006 PM25 24-hour 2013 PM25 Annual 2013 SO2 1-hour 2010UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 4, 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 4UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 4, 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 4 

### 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. 4, 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 4 

### Pollutant: Standard Units: NAAQS Standard: Statistic: PM10 Total 0-10um STP(81102) Design Value Year: 2014 Micrograms/cubic meter (25 C)(001) PM10 24-hour 2006 Annual Estimated Days > Standard REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS.
Level: 150 State Name: Montana

Site ID POC STREET ADDRESS | | | Estimated #Comp Cert& Eval | | |Estimated #Comp Cert& Eval | | | Estimated Quarter Cert& Eval | | | Estimated Exceedances Validity

Ind. 2014 2013 2012

30-053-0018 1 418 Mineral Ave 0 4 0 3 Y 0 3 Y 0 N * * Count Quarter Exceedances
0 Quarter Count Exceedances
0 Count#Comp Exceedances

0 3 - YearUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Mar. 4, 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 4 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