Science & Technology

Conference Call E-mail Correspondence

Contains E-mail Correspondence on setting up a conference call in for PCS Phosphate Mine expansion, Aurora, Beaufort County, North Carolina, March 17, 2009

Reccomendation to Request a Higher Level Review for Department of Army Permit AID 200110096, Potash Corporation of Saskatchewan Phosphate Division, Aurora Operation (PCS) Mine Continuation

Contains letter to USACE on EPA review request of Notice of Intent for the PCS Phosphate Mine expansion, Aurora, Beaufort County, North Carolina, March 17, 2009

Calendar Entry: Briefing - PCS Phosphates 404 Permitting

Contains calendar entry for meeting to discuss permit elevation on appox. 4K acres of wetland impact mine in Albemarle Pamilico National Estuary Program area, Aurora, North Carolina, 3/11/09

No Additional Review for Section 404 Permit, Potash Corporation of Saskatchewan

Contains EPA notification letter to not seek additional review for the CWA Section 404 permit for PCS Phosphate mine expanion operation, Aurora, North Carolina, June 17, 2009

EPA Veto of PCS Phosphate Permit in North Carolina

Contains letter from NC environmental organizations protesting the elevation of a Section 404 permit under the Clean Water Act, Aurora, North Carolina, February 18, 2009

PCS Phosphate Company, Inc. Mine Continuation Permit NGO Line Alternative Letter, April 3, 2009

Contains letter from PotashCorp requesting not to elective PCS Phosphate Company, Inc. Mine Continuation Permit, Beaufort County, North Carolina, April 3, 2009

Calendar Entry Appointment: Phill Ungaro calling (561-310-9219), re: PCS Letter

Contains calendar entry for phone conversation regardinf the PCS Letter,Phosphate mine expansion, Aurora, North Carolina, June 5, 2009

Quarterly Progress Report 2 April 2013 Walter Coke

Walter Coke, Inc., Progress Report January 1, 2013 through March 31, 2013

EPA Comments Dated October 24, 2012 Walter Coke, Inc., Birmingham, Jefferson County, Alabama

Contains revisions to the Community Involvement Plan (Revision 1.0) for the Walter Coke, Inc. site prepared in response to Final Comments dated 12/11/12 from the EPA.

Approval of Groundwater Interim Measures Plans and Commencement of Work RCRA 3008(h) Administrative Order on Consent

Contains letter in response to Walter Coke (WC) submittals to EPA for three Groundwater Interim Measures (OW IM) plans pursuant to the September 2012 RCRA 3008(h) Consent Order.

Revisions to the Risk Assessment Work Plan (Revision 1.1) for the Walter Coke site

Revisions to the Risk Assessment Work Plan (Revision 1.1) for the Walter Coke site submitted by Terracon Consultants Inc on March 6, 2013.

Quarterly Progress Report 1 January 2013 Walter Coke

Walter Coke, Inc., Progess Report September 24, 2012 Through December 31, 2012

Sample Analysis Report Revision 5, Sample Collection and Analysis at The Walter Coke Facility

This Sample Analysis Report documents the activities performed during the sample collection activities performed on May 17, 2012 at the Walter Coke facility in Birmingham, Alabama.

Sample Analysis Report Revision 5 Sample Collection and Analysis at the Walter Coke Facility

This Sample Analysis Report documents the activities performed during the sample collection activities performed on May 17, 2012.

October 9, 2012 Interim Measures (IM) Groundwater Sampling and Analysis Plan Revisions

Contains cover letter from Terracon Consultants, Inc. and enclosed revisions to the Interim Measures (IM) Groundwater Sampling and Analysis Plan (Revision 1.0) for the Walter Coke, Inc. site.

Vapor Intrusion Characterization Work Plan (Revision 1.0)

Cover letter from Terracon Consultants, Inc. on behalf of Walter Coke, Inc., with revisions to the Vapor Intrusion (VI) Characterization Work Plan (Revision 1.0) for the Walter Coke site.

Strategic Vision for Adopting New Approach Methodologies

To better protect human health and the environment, EPA’s OPP is developing and evaluating new technologies in molecular, cellular, computational sciences to supplement or replace more traditional methods of toxicity testing and risk assessment.

Guidance for Data Useability in Risk Assessment (Part A-1), Final, April, 1992

The analytical data objective for baseline risk assessments is that uncertainty is known and acceptable, not that uncertainty be reduced to a particular level

Guidance for Data Useability in Risk Assessment (Part B-1), Final, May, 1992

This document is the second part (Part B) of the two-part guidance for data useability in risk assessment.

ECM for Metamitron & Desaminometamitron in Soil - MRID 51173631

Environmental Chemistry Methods for Metamitron & Desaminometamitron in Soil - MRID 51173631