Beaumont, California Potrero Canyon

The work at the Potrero Canyon site included implementation of a groundwater treatment system near the rocket-motor production area. In 2002, 1,4-dioxane, a newly regulated chemical, was identified in the groundwater, and Lockheed Martin shut down the groundwater treatment system to conduct additional investigations and review remediation alternatives for the site. Information from these investigations was used to develop a Remedial Action Plan (RAP) for the site that Lockheed Martin submitted to the California Department of Toxic Substance Control (DTSC) in 2014. Public review of the Potrero Canyon RAP occurred in 2015 and the plan was approved in 2016. For more information view the Potrero Canyon Fact Sheet.


Documents

Many of the documents for the project are extremely large. We provide links to the main body, text, tables and figures on this page. Please use the contact button below to request appendices and additional information. Full documents and more information are also stored on the California Department of Toxic Substances Control  (DTSC) Envirostor website

2017

2017 Munitions & Explosives of Concern Inspection Report

Well Installation & Destruction Report, November 6, 2017

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2017

2016

2016 Munitions & Explosives of Concern Inspection Report

Remedial Action Plan, June 22, 2016

Environmental Impact Report, Remedial Action Plan  April 25, 2016

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2016

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2016

2015

2015 Munitions & Explosives of Concern Inspection Report

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2015

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2015

2014

2014 Munitions & Explosives of Concern Inspection Report

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2014

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2014  

2013

2013 Munitions & Explosives of Concern Inspection Report

Hydraulic Testing Summary Report, February 7, 2013

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2013

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2013

2012

2012 Munitions & Explosives of Concern Inspection Report

Feasibility Study, November 29, 2012

Hydraulic Testing Summary Report, November 29, 2012

Human Health & Predictive Ecological Risk Assessment, May 8, 2012

Burrowing Owl at Site 1, May 8, 2012

Site-Specific Explosives Safety Hazard Assessment, April 6, 2012

Preliminary Remedial Action Objectives, ARARs, GRAs, & Remedial Technology, Screening Tables, March 14, 2012

Summary Report Follow-on Munitions & Explosives of Concern (MEC) Evaluation, Area C - Propellant Burn Pit Area, March 17, 2012

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2012

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2012

2011

Numerical Groundwater Transport Model Development, July 11, 2011

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2011

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2011

Burn Pit Area Munitions & Explosives of Concern Phase II, March 11, 2011

Letter Report Documenting the Implementation of  Work Plan for Implementation of Select Elements of Munitions of Concern, January 3, 2011

2010

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2010

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2010

Well Rehabilitation, Destruction & Well Installation Report, November 2010

Summary Remedial Investigation Report, November 2010

Groundwater Monitoring Well Installation Report Supplemental, July 2010

Scoping Ecological Risk Assessment, April 2010

Follow-On Munitions and Explosives of Concern Evaluation Summary Report, March 2010

Transient Groundwater Model Report, Numerical Flow Model Development, January 2010

Groundwater Pumping Test Report, January 2010

2009

Technical Memorandum: Numerical Transport Model Development Plume/COC Conceptual Model, December 2009

Lineament Study, December 2009

Dynamic Site Investigation Former Operational Areas B, C, F, G and H, October 2009

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2009

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2009

Remedial Design Characterization Report for the Former Sanitary Landfill, July 2009

Characterization Report Feature F-33, Former Large Motor Washout Area, June 2009

Soil Investigation Report Historical Operational Areas A, B, C, D, F, G and H Supplemental, February 2009

2008

Semi-Annual Groundwater Monitoring Report, Second & Third Quarter 2008

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2008

Munitions and Explosives of Concern Evaluation and Removal Report Supplemental, October 2008

Historical Well Records Search and Field Surveys for Production Wells W1-3, W1-4 and W1-6, April 2008

2007

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2007

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2007

Summary Report Follow-on Munitions & Explosives of Concern Evaluation, February 2007

2006

Soil Investigation Sampling & Analysis Plan, Historical Operational Areas A, B, & C, Supplemental, December 2006

Soil Investigation Sampling & Analysis Plan, Historical Operational Areas D, E, F, G, H,  I Supplemental, December 2006

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2006

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2006

Abandonment of Three Former Production Wells Report, May 23, 2006

2005

Soil Investigation Report, Historical Operation Areas A, B, & C, May 2005

Soil Investigation Report, Historical Operation Areas D-I, May 2005

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2005

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2005

2004

Semi-Annual Groundwater Monitoring Report, Third & Fourth Quarter 2004

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2004

Groundwater Level Measurements & Surface Water Sampling Results, 4th Quarter 2003 & 1st Quarter 2004

2003

Production Well Abandonment Work Plan, August 2003

Installation & Sampling of Monitoring Well-67, July 2003

Semi-Annual Groundwater Monitoring Report, First & Second Quarter 2003

2002

Site Characterization Report Supplemental, September 2002

Semi-Annual Groundwater Monitoring Report, May 2002

2000

Earth Tech Five Year Review, March 2000

1998

Burn Pit Area Remediation System Evaluation, September 1998
Semi-Annual Groundwater Monitoring Report, July & October 1998

1997

Vapor Sampling Report, Revised August 1997

Lockheed Propulsion Company Treatment Plant Standard Operating Policies January 1997

1996

Water Quality Report, April 1996

Vapor Sampling Report, June 1996

1995

Water Quality Report, June 1995

Remediation System Six Month Evaluation, May 1995

1994

Water Level & Quality Report, December 1994

1993

Extraction System Installation Completion Report, December 1993

Burn Pit Area Removal Action Report, 1993   

1992

Hydrogeologic Report, December 1992

Waste Discharge Requirements Order No. 91-63-062, - November 1992

Remedial Action Plan, August 1992

Treatability Study, February 26, 1992



View a List of Terms Commonly Used in Relation to General Environmental Remediation Efforts