RE: For OMB - Additional revision to Table 5-20 (LML table) 12/16/2011 12:32 PM

From: "Higgins, Cortney" <Cortney_Higgins@omb.eop.gov>

To: RobertJ Wayland/RTP/USEPA/US@EPA

Cc: Bill Maxwell/RTP/USEPA/US@EPA

Hi Bob, Has the TSD that been appended to Chapter 5 (Summary of Expert Opinions

on the Existence of a Threshold in the Concentration-Response Function for PM2.5-related Mortality) been referenced anywhere else, in previous RIAs, etc? Furthermore, why does it need to be appended if it is available on the web (http://www.epa.gov/ttn/ecas/regdata/Benefits/thresholdstsd.pdf)?

Regards, Cortney

-----Original Message----- From: Wayland.Robertj@epamail.epa.gov [mailto:Wayland.Robertj@epamail.epa.gov] Sent: Friday, December 16, 2011 12:25 PM To: Higgins, Cortney Cc: Maxwell.Bill@epamail.epa.gov Subject: Fw: For OMB - Additional revision to Table 5-20 (LML table)

----- Forwarded by RobertJ Wayland/RTP/USEPA/US on 12/16/2011 12:25 PM

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-- ------------------------------------------------------------------| |Amanda CurryBrown/RTP/USEPA/US |

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--------------------------------------------------------------------| |RobertJ Wayland/RTP/USEPA/US@EPA |

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-- ------------------------------------------------------------------| |Bryan Hubbell/RTP/USEPA/US@EPA, Lydia Wegman/RTP/USEPA/US@EPA, Jim DeMocker/DC/USEPA/US@EPA, Susan Anenberg/RTP/USEPA/US@EPA, Amy | |Lamson/RTP/USEPA/US@EPA, Ron Evans/RTP/USEPA/US@EPA |

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-- ------------------------------------------------------------------| |12/16/2011 12:18

PM |

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-- ------------------------------------------------------------------| |For OMB - Additional revision to Table 5-20 (LML table) |

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-- ------------------------------------------------------------------|Hi Bob,

We've made a revision to table 5-20 in Chapter 5, reflected in the attached document. The table has been reworked because we found the previous version potentially confusing. Could you forward this to Cortney? This is the only change to Ch. 5.

(See attached file: New Table 5-20.docx)

Amanda Curry Brown OAQPS/HEID/AEG 919.541.3808 CurryBrown.Amanda@epa.gov