UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

User ID: DCKUENZLI CERTIFICATION EVALUATION AND CONCURRENCE Report Request ID: 1286861 Tribal Code State County Site 30 30 111 053 0066 0018 Report Code: AMP600 GEOGRAPHIC SELECTIONS Parameter POC City AQCR UAR PROTOCOL SELECTIONS Parameter Classification I --- AGENCY SELECTIONS **~** CRITERIA CRITERIA Parameter 42401 88101 Method Duration Mt Dept Of Environmental Quality, Air Quality Division

I **~~~~** J Option Type Option Value _ MERGE PDF FILES YES AGENCY ROLE CERTIFYING DATE CRITERIA Start Date End Date 2014 2014 Selection Criteria Page 1 CBSA CSA EPA Region Jan. 15, 2015

# January16,2015 ShaunMcGrath RegionalAdministrator USEPARegion8 1595WynkoopStreet Denver,CO80202-1129 DearMr.McGrath, Please accept this letter as the Montana Department of Environmental Quality's (MTDEQ's) certificationofits2014ambientairmonitoringdatafortheCoburnRoad 1-hourandmaximum5- minute sulfur dioxide parameters and the Libby 1-hour particulate matter with an aerodynamic diameter of 2.5 microns or less (PM2.5) parameter as required by Tide 40 Code of Federal RegulationsPart58.15. As summarizedintheattachedreports (AQSAMP600 andAMP450NC), MTDEQ'sambient air

# concentration andquality assurance data for thetimeperiodofJanuary 1, 2014, throughDecember31, 2014, arecompletely submittedtoAQS. Theconcentrationdataare accuratetothe bestofmyknowledge,takingintoconsiderationthequalityassurancefindings. Please beadvised thatMTDEQwill certify theremaining ambientair quality data as partofthe requiredannualairmonitoringdatacertificationscheduleonorbeforeMay 1,2015. DigitalcopiesofthisletterandtheattachedreportsarebeingsenttoJoshuaRickardattheofficeof EPA . 8. BureauChief AirResourcesManagementBureau 406-444-0286 dklemp@mt.gov
Steve Bullock, Governor I Tom Livers, Director I P.O. Box200901 I Helena, MT59620-0901 I (406)444-2544 I www.deq.mt.govData Evaluation and Concurrence Report Summary Certification Year: 2014 Certifying Agency (CA): Mt Dept Of Environmental Quality, Air Quality Division (0730) Pollutants in Report: Monitors Monitors Recommended for Parameter Name Code Evaluated Concurrence by AQS PM2.5 - Local Conditions Sulfur dioxide PQAOs in Report: PQAO Name 88101 42401
Mt Dept Of Environmental Quality, Air Quality Division Summary of 'N' flags for all pollutants: AQS Parameter 1 1 1 1 PQAO Code TSA Date Jan. 15, 2015 Monitors NOT Recommended for Concurrence by AQS
0 0 PQAO Code AQS Site-10 POC

-- -- Reason for AQS Recommendation **S~n~u~~MonHoringO~an~ationRep~sen~tive: ~,~~~~~~~-~~?~-~~~~~~~~~~~~~~~~~~~~~~**  Page 1 of 1Data Evaluation and Concurrence Report for Gaseous Pollutants Certifying Year Certifying Agency Code Parameter Name P Approval Date NPAP Audit Summary: ID POC Monitor Type 11-0066 1 SLAMS Mean 2014 Mt Dept Of Environmental Quality, Air Quality Division (0730) Sulfur dioxide Mt Dept Of Environmental Quality, Air Quality Division (0730) 05/03/2013 Number of Valid Audits 0 Data Min Max Exceed.

Count NPAP Bias Criteria Met One Point ity Check Annual PE Precision Bias Complete Bias Complete NPAP Bias Concur. Flag CARec Epa

Flag ConcurData Evaluation and Concurrence Report for Particulate Matter Certifying Year:2014 Certifying Agency: Mt Dept Of Environmental Quality, Air Quality Division (0730) eter: PM2.5- Local Conditions (88101) Name: Mt Dept Of Environmental Quality, Air Quality Division (0730)

ity Assurance Project Plan Approval Date: 05/03/2013 Collocation Summary PEP Summary #Sites #Sites cv Criteria # #Audited #PEP #PEP % Criteria
Method # Sites Reg Collocated Est CVUB Met? Methods Methods Required Submitted Complete Bias Met?

170 9 1 2 15.51 16.49 y 2 0 8 0 0 y

183 6 1 1 8.65 10.47 y Routine Data (ug/m3) Flow Rate Audit Concurrence Flag Monitor Exceed. Outlier % % %

**~~--** -··- ·- POCMethod !m! Mean Min Max Count Count Complete Bias Complete CV **~ ~**  __ , ......

-·---- ........... **-·~** - **·-~**

3 170 SLAMS 9.35 -5.0 98.4 0

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# cUNITED STATES ENVIRONMENTAL PROTECTION AGENCY

User ID: DCKUENZLI QUICKLOOK ALL PARAMETERS Report Request ID: 1286873 Report Code: AMP450NC GEOGRAPHIC SELECTIONS Tribal Code State County Site Parameter POC City AQCR UAR

30 30 PROTOCOL SELECTIONS Parameter Classification ALL CRITERIA CRITERIA Parameter 42406 88101 42401 Method SELECTED OPTIONS 053 111 Duration 0018 0066

I **AG~LECTIONS** l
Mt Dept Of Environmental Quality, Air Quality Division CBSA CSA EPA Region SORT ORDER l
Option Type Option Value Order Column
MERGE PDF FILES YES 1 STATE_CODE
EVENTS PROCESSING INCLUDE EVENTS 2 3 4 5 6 7 AGENCY ROLE PQAO DATE CRITERIA Start Date End Date 2014 2014 Selection Criteria Page 1 COUNTY_CODE SITE ID PARAMETER_CODE POC DATES EDT_ID APPLICABLE STANDARDS Standard Description PM25 24-hour 2013 S02 1-hour 2010 Jan. 15, 2015[EDT DESCRIPTION
0 NO EVENTS
1 EVENTS EXCLUDED

2 EVENTS INCLUDED UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICKLOOK ALL PARAMETERS EXCEPTIONAL DATA TYPES

5 EVENTS WITH CONCURRENCE EXCLUDED Jan. 15, 2015Parameter Site ID: 30-053-0018 City: Libby 88101 PM2.5 - Local Conditions 88101 PM2.5 - Local Conditions UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICKLOOK ALL PARAMETERS

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0 Unit c PQAO County: Lincoln Micrograms/cubic meter 3 (LC) Micrograms/cubic meter 3 (LC) 0730 0730 Year Meth 2014 170 2014 170 # 1st Max Obs Value Address: 8681 98.4 365 48.6 2nd Max 3rd Max Value Value 418 Mineral Ave 75.7 72.7 39.1 28.2

Site ID: 30-111-0066 City: Not in a city County: Yellowstone Address: COBURN HILL ROAD

42401 Sulfur dioxide 42406 S02 max 5-min avg Parts per billion Parts per billion Note: The * indicates that the mean does not satisfy summary criteria. 1 1 0730 0730 2014 100 2014 100 7953 8197 Page 2 of 5 130.0 250.0 105.0 239.0 100.0 230.0 4th Max Value 65.2 27.9 93.0 212.0 Jan. 15, 2015 Arith. Mean Cert& t>l Duration Eval SJ 9.35 1 HOUR 9.30 24-HR BLK AVG 16.45 1 HOUR 7. 85 1 HOUR s 2 s 2 s 0 s 0PARAMETER 42401 42406 88101 METHOD CODE 100 100 170 Note: The * indicates that the mean does not satisfy summary criteria. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICKLOOK ALL PARAMETERS METHODS USED IN THIS REPORT COLLECTION METHOD INSTRUMENTAL INSTRUMENTAL Met One BAM-1020 Mass Monitor w/VSCC Page 3 of 5 ANALYSIS METHOD ULTRAVIOLET FLUORESCENCE ULTRAVIOLET FLUORESCENCE Beta Attenuation Jan. 15, 2015UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICKLOOK ALL PARAMETERS PQAOS USED IN THIS REPORT [:,:0 AGENCY DE'CR'PT'ON I
0730 Note: The * indicates that the mean does not satisfy summary criteria. Mt Dept Of Environmental Quality, Air Quality Division Page 4 of 5 Jan. 15, 2015UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM QUICKLOOK ALL PARAMETERS CERTIFICATION EVALUATION AND CONCURRENCE FLAG MEANINGS

FLAG MEANING M The monitoring organization has revised data from this monitor since the
most recent certification letter received from the state.

N s u X y 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) . Note: The * indicates that the mean does not satisfy summary criteria. Page 5 of 5 -------- Jan. 15, 2015