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 : I 0 ' -,'**:,.~** 

## ' 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