UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 


REGION 10 


1200 Sixth Avenue, Suite 900 

Seattle, Washington 98101-3140 

April 8, 2010 

Reply To: OEA-095 

MEMORANDUM 

SUBJECT: Sandpoint PM 10 Data Review - 1/1/94 through 12/31109 

FROM: Chris Hall/sl 

Air Monitoring Data Analyst 

Office of Environmental Assessment 

TO: Steve Body 

Air Planning SIP Team 

Office of Air, Waste, & Toxics 

At the request of the Office of Air, Waste and Toxics, I have conducted a review of all 

Federal reference method (FRM) and Federal equivalent method (FEM) particulate 

matter data submitted to EPA for Sandpoint, Idaho. The purpose of this review is to 

determine the attainment status of each FRMIFEM PM 1 0 sampler within the city limits 

of Sandpoint for the time period of January 1, 1994 through December 31,2009. EPA 

regulations state that a PM 10 monitor is in attainment if the expected number of 

exceedances is less than or equal to 1 for the given 3 year period. 

For 1994 to 2009 the available data within the EPA Air Quality System (AQS) database 

was submitted by State of Idaho Department of Environmental Quality (IDEQ). There 

have been three locations where PM 10 monitoring has occurred in Sandpoint during the 

1994-2009 timeframe (see Table 1). 

Table 1. Sandpoint, Idaho PMI0 Expected Exceedances Chart 
',4_ ';'-C,.;; -' ~',... .~ .. ,- ':.-: ' !( . ) _.. I'~'.;';-: ~'..... '. l' . o«- ...~. ~ .......... '_' . 0::.... ,.. . .,. '",: ... . .. ~ -:.... " .::
 '. ., - ,,'., '~t"~ ~~r~ ~~~~"N~ f¢~t~ 1~completeness 91 ~~ t;~ i:' • F 

'. ,. ';" : ,:.i,,.Site ' .' ~'?~~ ,,,:~, y AQS:I0'-,' :,.~ 'ear. M~ttiQa 063 Methodr079A)jnY Er; ' EE 


Post Office 16-017-0001 1994 85 - 2.093 ­ Post Office 16-017-0001 1995 95 - 0 ­ Post Office 16-017-0001 1996 92 - 0 0.7 


Post Office 16-017-0001 1997 99 - 0 0 


Post Office 16-017-0001 1998 98 - 0 0 


Post Office 16-017-0001 1999 98 98 0 0 


Post Office 16-017-0001 2000 100 98 0 0 


Post Office/Division 8t 16-017-0001/0004 2001 98 78 0 0 


Division 8t 16-017-0004 2002 - 100 0 0 


Division 8t 16-017-0004 2003 - 92 0 0 


Division 8t 16-017-0004 2004 - 94 0 0 


Division 8t 16-017-0004 2005 - 93 0 0 


Division 8t 16-017-0004 2006 - 96 0 0 


Division 8t 16-017-0004 2007 - 84 0 0 


Division 8t 16-017-0004 2008 - 98 0 0 


Division 8t10ntario Blvd 16-017-0004/0005 2009 - 97 0 0 

* Method 063 is the FRM high volume, filter-based method. 	Method 079 is the FEM continuous TEaM method. 

Years 1994, 2003, and 2007 each had one quarter where the sampling frequency was did 

not meet the 75% data completeness requirement of Appendix K to Part 50 (see Table 2). 

Per section 2.3 of Appendix K in order to designate an area attainment all 12 quarters for 

the given 3 year attainment period must have at least 75% data. Given the deficient 

quarters as noted in Table 2 there are a number of 3-year EE periods that do not meet 

designation criteria (see Table 3). In summary, while the expected number of 

exceedances was less than 1 for all 3-year averaging periods from 1994 to 2009, 

attainment status can only designated for 7 of 13 averaging periods due to data 

completeness issues. 

Table 2. Years with Qtrs <75% 	 Table 3. Data Completeness 

for 1994-2009 EE Years 

>75% 1995-1997 Yes 


2003 >75% >75% >75% 1996-1998 Yes 


2007 >75% 70% >75% >75% 1997-1999 Yes 


1998-2000 Yes 

1999-2001 Yes 

2000-2002' Yes 

2001-2003 No 

2002-2004 No 

2003-2005 No 

2004-2006 Yes 

2005-2007 No 

2006-2008 No