July 7, 2011

MEMORANDUM

FROM:  	Kenneth Davidson

	   	Assessment and Standards Division

TO:	 	 Docket EPA-HQ-OAR-2010-0162

SUBJECT:	BenMAP Air Quality Modeling Data Files for Estimation of Health
Impacts Associated with the Final Heavy-Duty National Program

The purpose of this memorandum is to transmit BenMAP air quality
modeling data input and configuration files used for the estimation of
PM and ozone-related health impacts associated with the final Heavy-Duty
National Program.  When used as input files to the publicly-available
Environmental Benefits Mapping and Analysis Program (BenMAP), a user
will be able to replicate the health impacts analysis results presented
in the RIA for this rulemaking.  The summary files are as follows:

File 1: BenMAP_AirQualityGrids.zip

12km ambient PM and ozone air quality grid input data for BenMAP
(baseline and control for 2030) 

File 2: BenMAP_Configurations.zip

PM and ozone health effects configuration file for BenMAP (.cfg files)

PM and ozone health effects aggregation, pooling, and valuation file for
BenMAP (.apv files)

File 3: BenMAP_Executable.zip

BenMAP executable file (.exe)

The health impacts analysis is discussed in Section VIII.H of the
preamble and Chapter 8 of the Regulatory Impact Analysis.  

 BenMAP is compatible with these files and can be downloaded at
http://www.epa.gov/air/benmap/download.html

