	

	Coal Prep Items Requested

	Mary Johnson 

	to:

	Cortney_Higgins

	09/22/2009 06:06 PM

	Cc:

	RobertJ Wayland

	Show Details

Cortney,

In response to your request, please see below.

(1)    Respondent burden and cost tables for years 1 through 3  

(2)    Tables summarizing estimated reductions and costs for thermal 

dryers   

Tables 1A and 2A present the estimated PM reductions and cost of
upgrading 

a venturi scrubber currently installed on a thermal dryer at a
bituminous 

coal mine such that the dryer can achieve a PM standard of 0.010 gr/dscf

Tables 1B and 2B present the estimated SO2 reductions and cost of
adapting 

a venturi scrubber currently installed on a thermal dryer at a
bituminous 

coal mine such that the dryer can achieve 90% reduction in SO2 emissions

(3)    In looking back at Peabody;s public comments, the $4,400/ton of
PM 

removed is an incremental cost.  We do not consider that to be 

unreasonable based on the health effects associated with PM.  Also, an 

affected source may use any type of control measure that achieves the 

requirements of a rule.

We'll be back in touch with you regarding preamble text and the revised 

thermal dryer memo.

Thanks.

Mary Johnson

Environmental Engineer

U.S. Environmental Protection Agency

Office of Air Quality Planning and Standards

Mail Code D 243-01

Research Triangle Park, NC  27711

Phone:  (919) 541-5025

Fax:  (919) 541-5450

