USACE Final Reports

 

United States Army Corps of Engineers (USACE)

USACE - Final 2018 RI Technical Memorandum, Downgradient Areas Investigation - January 2020

USACE - Final 2018 Remedial Investigation Technical Memorandum, Downgradient Areas Investigation - Appendices

USACE - Final Fall 2018 Long-Term Monitoring Event 12 Letter Report - December 2019

USACE - Final Letter Report for Fall 2018 Residential Wells Interim Monitoring and Operations and Maintenance of Residential Well GAC Systems - June 2019

USACE - Final Spring 2018 Long-Term Monitoring Event 11 Letter Report - April 2019

USACE - Final Spring 2018 Long-Term Monitoring Event 11 Letter Report - Appendices

USACE - Remedial Investigation Technical Memorandum 2017 Source-Area Investigation - April 2019

USACE - Remedial Investigation Technical Memorandum 2017 Source-Area Investigation - Appendices

USACE - Long-Term Monitoring Event 10 Letter Report Fall 2017 - November 2018

USACE - Long-Term Monitoring Event 10 Letter Report Fall 2017 - Appendices

USACE - Final 2017 Technical Memorandum—Acquisition, Processing, and Interpretation of Reflection/Refraction Seismic Surveys - November 2018

USACE - Final 2017 Technical Memorandum—Acquisition, Processing, and Interpretation of Reflection/Refraction Seismic Surveys - Appendices

USACE - Final 2017 Residential Wells Interim Monitoring and Operations and Maintenance of Residential Well GAC Systems Fall 2017 - September 2018

USACE - Final 2016 RI Technical Memorandum, Source-Area Investigation - August 2018

USACE - Final 2016 RI Technical Memorandum, Source-Area Investigation - Appendices

USACE - Remedial Investigation Technical Memorandum 2016 Source-Area Investigation - August 2018

USACE - Long-Term Monitoring Event 9 Letter Report Spring 2017 - May 2018

USACE - Hydrogeologic Framework Report and Airborne Electromagnetic Survey - May 2018

USACE - Hydrogeologic Framework Report and Airborne Electromagnetic Survey – Appendix B  [proprietary software required to open]

USACE - Long-Term Monitoring Program Interim Residential Groundwater Monitoring Event Fall 2016 - December 2017

USACE - Long-Term Monitoring Event 8 Letter Report Fall 2016 - October 2017

USACE - Preliminary Airborne Electromagnetic (AEM) Data Results Memorandum - August 31, 2017

USACE - Data Synthesis, Evaluation, and Interpretation Technical Memorandum - June 2017

USACE - Long-Term Monitoring Program for the Focused Source Area Remedial Investigation Addendum Spring 2016 - May 2017

USACE - Long-Term Monitoring Program Interim Residential Groundwater Monitoring Event Fall 2015 - February 2017

USACE - Domestic and Commercial Well Sampling Report Atlas Site 4 - Sept 21, 2016

USACE - Final Uniform Policy Quality Assurance Project Plan for the Focused Source Area Remedial Investigation Addendum, Former Atlas “D” Missile Site 4, Laramie County, Wyoming. Prepared for U.S. Army Corps of Engineers, Omaha District - July 2016

USACE - Technical Memorandum—Acquisition, Processing, and Interpretation of Reflection/Refraction Seismic Survey for the Focused Source Area RI Addendum - June 2016

USACE - Appendix A - Relevant Figures from Surface Geophysical Investigation Report RAS - March 2006

USACE - Final Interim Long-Term Monitoring Program Uniform Federal Policy Quality Assurance Project Plan Update for the Focused Source Area Remedial Investigation Addendum, Former Atlas “D” Missile Site 4, Laramie County, Wyoming. Prepared for U.S. Army Corps of Engineers, Omaha District - March 2016

USACE - Data Synthesis, Evaluation, and Interpretation Technical Memorandum - April 2015

USACE - Long-Term Monitoring Program Interim Residential Groundwater Monitoring Event Fall 2014 - February 2015 

USACE - Downgradient Domestic and Commercial Potable Well Sampling Report Atlas Site 4 - September 2014

USACE - Long-Term Monitoring Data Summary Letter Report Fall 2013 - March 2014

USACE - Long-Term Monitoring Data Summary Letter Report Spring 2013 - February 2014

USACE - Technical Memorandum Addendum Pre Design Characterization 2013 - Atlas Site 4 - November 2013

USACE - Hydrological and Geophysical Logging Results - Atlas D Missile Site 4 - October 30, 2013

USACE - Data Synthesis, Evaluation, and Interpretation - Bay West Technical Approach - September 16, 2013

USACE - Atlas 4 Pre-Design Characterization Tech Memo - May 2013

USACE - Atlas Site 4 Well Selection Tech Memo Update 2013 - May 2013

USACE - 2011 Annual Long-Term Monitoring Report - Atlas Site 4 - April 2013

USACE - Geophysical Logging, Hydrophysical Logging, and Data Evaluation of Nine Groundwater Wells - Atlas Site 4 - September 2012

USACE - Tech Memo Atlas 4 Pre-Design Characterization - April 2012

USACE - Groundwater Flow Modeling Report for Atlas D Missile Site 4 - February 2012

USACE - Geophysical and Hydrophysical Logging Report - Monitoring Wells MW46 MW47 MW48 MW50 - Atlas Site 4 - January 2012

USACE - Analysis of the EW-01 Aquifer Test - Atlas Site 4 - December 2011

USACE - Spring 2011 Long-Term Monitoring Letter Results - Atlas Site 4 - October 2011

USACE - Annual Report for the 2010 Long-Term Monitoring Program - Atlas Site 4 - June 2011

USACE - 2010 Summer Long Term Monitoring Letter Results - September 2010

USACE - 4th Quarter 2010 TCRA GW Results Tech Memo - Atlas Site 4 - May 18, 2010

USACE - Tech Memo - Long Term Monitoring Program Well Selection Evaluation - Atlas Site 4 - March 2010

USACE - 3rd Quarter 2010 TCRA GW Results Tech Memo - Atlas Site 4 - February 02, 2010

USACE - Engineering Design Report TCRA Groundwater Treatment Plant - City of Cheyenne - January 2010

USACE - 2nd Quarter 2009 TCRA GW Results Tech Memo - Atlas Site 4 - November 17, 2009

USACE - Focused Feasibility Study - Atlas Site 4 - November 2009

USACE - TCRA Installation Report for Residential Water Treatment Units & 1st Quarter Sampling - September 2009

USACE - TCRA Wellhead Treatment - Atlas Site 4 - Project Work Plan - July 2009

USACE - Technical Memorandum - 2008 Supplemental Investigations - Atlas Site 4 - March 2009

USACE - Geophysical and Hydrophysical Logging Report - Monitoring Wells MW43 MW44 MW45 - Atlas Site 4 - January 2009

USACE - Geophysical and Hydrophysical Logging Report - Monitoring Wells MW30 MW39 MW40 - Atlas Site 4 - January 2008

USACE - Supplemental Investigation Findings Tech Memo - Atlas Site 4 - January 2008

USACE - Tech Memo Groundwater Well Sampling - Spring 2007 - Atlas Site 4 - August 2007

USACE - Geophysical, Hydrophysical, and Scanning Colloidal Borescope Flowmeter Logging Study  - Wells OW35 OW41 OW51 OW52 - 2007

USACE - Domestic Well Water Sampling Annual Report - 2006 -  Atlas Sites 1 & 4 - July 2006

USACE - Remedial Action Alternatives Tech Memo -Atlas 4 Site - June 2006

USACE - Remedial Investigation Report - Atlas Site 4 - May 2006

USACE - Surface Geophysical Surveys and Borehole Geophysical Logging Report - March 2006

USACE - Domestic Well Sampling Memorandum - 2005 Winter Quarterly Monitoring - Atlas Site 4 - January 20, 2006

USACE - Letter Report - 2005 Fall Quarterly Monitoring - Atlas Site 4 - October 2005

USACE - Expanded Site Investigation Addendum - Atlas Site 4 - April 2005

USACE - Appendix I - Groundwater Geochemistry Evaluation - Atlas Site 4 - 2005

USACE - Community Involvement Plan - Atlas Site 4 - April 2004

USACE - Expanded Site Inspection Report - Atlas Site 4 - October 2003

USACE - Interim Response Action - Atlas Site 4 - May 2003

USACE - Site Inspection Report and Data Summaries - Preliminary Assessment and Site Investigation - Former Atlas Missile Sites 1 and 4 - Corrected Pages - October 28, 2002

USACE - Site Inspection Report and Data Summaries - Preliminary Assessment and Site Investigation - Former Atlas Missile Sites 1 and 4 - August 2002

USACE - Phase Out Report - Site 4 - UST Removal - November 12, 1993 

 

Site Overview

Current Site Reports

Recent News