Ron Evans/RTP/USEPA/US 

10/01/2007 10:33 AM

	

To

"Johansson, Robert" <Robert_C._Johansson@omb.eop.gov>

cc

Janet Cakir/RTP/USEPA/US@EPA, Lisa Conner

Subject

RESEND:  SAB letter on extrapolated costs









Rob, per our conversation on Friday, here is a copy of the SAB letter
which includes a discussion of the appropriateness of monetizing the
value of reducing emissions for which no known controls exist.  

----- Forwarded by Ron Evans/RTP/USEPA/US on 10/01/2007 10:28 AM -----

Ron Evans/RTP/USEPA/US

06/12/2007 03:52 PM

	

To

"Johansson, Robert" <Robert_C._Johansson@omb.eop.gov>

cc

Subject

EMPAX discussion results









I wanted to quickly review our agreement on the use of the EMPAX results
in the ozone NAAQS RIA.

We have agreed to pull that portion of the cost chapter covering the
EMPAX results for the modeled controls and place it into an appendix. 
We will remove that portion of the total costs attributed to the
economic impacts of the modeled controls as well (thus, the partial
attainment costs drop from $7.1 to $3.9 billion).  We will indicate in
the body of the RIA that we did not include the economic impacts portion
of the modeled control costs because we were not able to do a similar
calculation for the extrapolated cost portion, thus allowing for more of
an apples to apples comparison (recognizing that there are obviously
differences as noted elsewhere between the modeled and extrapolated
costs).

Additionally, as I indicated, I will cite in the RIA the June 8th letter
of our Science Advisory Board (SAB) Section 812 Council which raises
questions on the appropriateness of estimating the cost of extrapolated
tons (see the response to charge question 2a).  I will state that we
will evaluate this advice as we design the final ozone NAAQS RIA
analysis.  Enclosed is a copy of the letter to Administrator Johnson,
including a list of the members of the Council.

Please let me know if this is inconsistent with your memory of our
conversation.  Thanks.

Ron Evans

Leader, Air Benefit & Cost Group

HEID/OAQPS/OAR/EPA

Mail Drop C-439-02

919-541-5488

919-541-0839 fax

