Los Alamos National Laboratory (LANL)
Sandia and Mortandad Canyons Chromium Groundwater Contamination
2019
October 3, 2019 – NMED Semiannual Progress Report on Chromium Plume Control Interim Measure Performance TA-05 39134
September 24, 2019 – LANL Submittal of the Supplemental Work Plan for Pilot-Scale Amendments Testing for Chromium in Groundwater beneath Mortandad Canyon
September 18, 2019 – LANL Semiannual Progress Report on Chromium Plume Control Interim Measure Performance, January through June 2019
August 22, 2019 – NMED Sixth Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon
August 21, 2019 – NMED Approval Extension Request for Submittal of Two Drilling Work Plans for Monitoring Wells R-35c and R-73
August 7, 2019 – LANL Extension Request for Submittal of Two Drilling Work Plans for Monitoring Wells R-35c and R-73
July 12, 2019 – NMED Results from Regional Groundwater Monitoring Well R-70
July 4, 2019 – NMED Letter Report: Well R-70 Completion and Collection of First Groundwater Samples
July 3, 2019 – NMED Approval Completion Report for Conversion of CrIn-6 to CrEX-5
June 26, 2019 – LANL Submittal of the Completion Report for Conversion of CrIN-6 to CrEX-5
June 13, 2019 – LANL Request for Extension of Phase 2 Pilot Amendment Testing Work Plan Milestone
June 12, 2019 – LANL Fact Sheets for Regional Well R-70 (RG 97398)
June 4, 2010 – NMED Letter Report: Well R-70 Completion and Collection of First Groundwater
June 3, 2019 – NMED Approval 2018 Sandia Wetland Performance Report
May 30, 2019 – LANL Submittal of the Quarterly Report for 2019 Quarter 1, Discharge Permit DP-1835, Class V Underground Injection Control Wells
May 28, 2019 – LANL Letter Report: Well R-70 Completion and Collection of First Groundwater
April 29, 2019 – LANL Submittal of the Sixth Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath M01iandad Canyon
April 1, 2019 – NMED Evaluation of Chromium Plume Control Interim Measure Operational Alternatives for Injection Well CrIN-6
March 29, 2019 – NMED Fifth Quarterly Monitoring Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon
March 28, 2019 – NMED Approval Annual Progress Report on Chromium Plume Control Interim Measure Performance
March 22, 2019 – LANL Submittal of the Semiannual Progress Report on Chromium Plume Control Interim Measure Performance TA-05 38837
February 28, 2019 – LANL Submittal of the Quarterly Report for 2018 Quarter 4, Discharge Permit DP-1835, Class V Underground Injection Control Wells
February 12, 2019 – LANL Discharge Permit DP-1793 Permit Condition #9, Annual Monitoring Report, and Permit Condition #8, Discharge Report for 2018 TA-05 38807
January 31, 2019 – LANL Submittal of the Fifth Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon TA-05 38789
January 28, 2019 – NMED Fourth Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon TA-05 38783
January 7, 2019 – NMED Approval Chromium Plume Control Interim Measure Performance Monitoring Work Plan
2018
December 31, 2018 – Approval Work Plan for Tracer Testing in Support of the Phase 2 Amendments Test For Chromium Plume Center Characterization
December 7, 2018 – LANL Notice of Intent to Conduct a Sodium Iodide Tracer Study at Los Alamos National Laboratory
November 29, 2018 – LANL Submittal of the Quarterly Report for 2018 Quarter 3, Discharge Permit DP-1835, Class V Undergound Injection Control Wells
November 21, 2018 – NMED Approval Drilling Work Plan for Chromium Groundwater Project, Regional Aquifer Monitoring Well R-70
November 20, 2018 – NMED Third Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon
November 13, 2018 – NMED Approval Completion Report for Groundwater Injection Well CrIn-6, Revision 1
October 31, 2018 – LANL Submittal of the Completion Report for Groundwater Injection Well CrIN-6, Revision 1 TA05 38614
October 30, 2018 – LANL Submittal of the Drilling Work Plan for Chromium Groundwater Project Regional Aquifer Monitoring Well R-70 TA05 38612
October 30, 2018 – LANL Submittal of the Fourth Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon TA05 38611
October 30, 2018 – LANL Work Plan for Tracer Testing in Support of the Phase 2 Amendments Test for Chromium Plume Center Characterization TA05 38610
October 3, 2018 – NMED Second Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon
October 2, 2018 – NMED Quarterly Report on Pilot-Scale Amendments Testing for Chromium Groundwater Beneath Mortandad Canyon
September 26, 2018 – Approval Request for Extension of Phase 2 Pilot Amendments Testing Work Plan
September 26, 2018 – LANL Submittal of the Annual Progress Report on Chromium Plume Control Interim Measure Performance TA-05 38596
September 24, 2018 – NMED Approval Completion Report for Groundwater Extraction Well CrEX-4
September 24, 2018 – NMED Approval Completion Report for Groundwater Extraction Well CrEX-2
September 20, 2018 – LANL Request for Extension of Phase 2 Pilot Amendments Testing Work Plan Milestone TA05 38592
August 30, 2018 – LANL Submittal of the Quarterly Report for 2018 Quarter 2, Discharge Permit DP-1835, Class V Underground Injection Control Wells
August 23, 2018 – LANL Notice of Intent to Conduct a Tracer Study at Los Alamos National Laboratory
August 14, 2018 – NMED Compendium of Technical Reports Conducted Under the Work Plan for the Chromium Plume Center Characterization
July 31, 2018 – LANL Submittal of the Third Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon
June 26, 2018 – LANL Missing Appendix A to Attachment 9 of the Compendium of Technical Reports Conducted Under the Work Plan for Chromium Plume Center Characterization
June 6, 2018 – NMED Evaluation of Chromium Plume Control Interim Measure Operational Alternatives for Injection Well CrIN-6
June 5, 2018 – NMED Approval 2017 Sandia Wetland Performance Report
May 24, 2018 – LANL Annual Periodic Monitoring Reports for the Chromium Investigation, Material Disposal Area C, and Technical Area 54 Monitoring Groups
May 2, 2018 – NMED Completion of Chromium Extraction Well CrEX-4 Installation, Testing, and Integration into the Chromium Plume Control Interim Measure Extraction, Treatment, and Injection System
April 26, 2018 – LANL Evaluation of Chromium Plume Control Interim Measure Operational Alternatives for Injection Well CrIN-6 TA-05 38432
April 26, 2018 – LANL Second Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater Beneath Mortandad Canyon TA-05 38431
April 25, 2018 – LANL Completion Report for Groundwater Extraction Well CrEX-4 TA– 05 38428
April 25, 2018 – 2017 Sandia Wetland Performance Report
April 24, 2018 – LANL Chromium Plume Control Interim Measure Performance Monitoring Work Plan TA-05 38423
April 23, 2018 – LANL Quarterly Reports (2016: Quarter 4, 2017; Quarters 1, 2, 3, and 4), Discharge Permit DP-1835, Class V Underground Injection Control Wells
March 28, 2018 – LANL Compendium of Technical Reports Conducted Under the Work Plan for Chromium Plume Center Characterization TA 05 38414
March 22, 2018 – LANL Notice of New Date for Submittal of the “CrIN-6 Evaluation Report” TA 05 38410
March 22, 2018 – LANL Completion of Chromium Extraction Well CrEX-4 Installation, Testing, and Integration into the Chromium Plume Control Interim Measure Extraction, Treatment, and Injection System TA 05 38409
March 21, 2018 – LANL As-Built Specifications for CrEX-4 and Integrity Testing of Distributing Piping from CrEx-1, CrEx-2, CrEx-3, and CrEx-4 to CrIN-1, CrIN-2, CrIN-3, CrIN-4, CrIN-5, and CrIN-6, Discharge Permit DP-1835, Class V Underground Injection Control Wells
February 26, 2018 – LANL Quarterly Report – 2017 Quarter 4, Discharge Permit DP-1835, Class V Underground Injection Control Wells
February 26, 2018 – LANL Discharge Permit DP-1793 Annual Monitoring Report
February 8, 2018 – LANL Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater beneath Mortandad Canyon
January 29, 2018 – LANL Quarterly Report on Pilot-Scale Amendments Testing for Chromium in Groundwater beneath Mortandad Canyon 38360
2017
December 21, 2017 – NMED Annual Periodic Monitoring Report for the Chromium Investigation Monitoring Group
December 4, 2017 – LANL Fact Sheets for CrEx-4
November 22, 2017 – NMED GWQB Approval of Extension Request for Work Plan #6 for the Treatment and Land Application of Groundwater from Technical Areas 09 and 16, DP-1793
November 22, 2017 – NMED GWQB Approval of Extension Request for Multiple Activities Work Plan for the Treatment and Land Application of Groundwater at TA-05, DP-1793
November 22, 2017 – LANL Quarterly Report – 2017 Quarter 3, Discharge Permit DP-1835, Class V Underground Injection Control Wells
November 22, 2017 – LANL Integrity Testing of Injection Well CrIN-6 and Distribution Piping from Extraction Wells to Injection Wells, Discharge Permit DP-1835, Class V Underground Injection Control Wells
November 22, 2017 – NMED GWQB Approval of Amendment 2 – Additional Source (CrEX-4) for Multiple Activities Work Plan for Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 Work Plan #5
November 21, 2017 – NMED Path Forward in Response to the NMED’s September 1, 2017 Notification to Temporarily Limit Injection Into CrIN-1 and CrIN-6, Discharge Permit DP-1835
October 26, 2017 – LANL Amendment 2 – Additional Source (CrEX-4) for Multiple Activities Work Plan for the Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 Work Plan #5
October 12, 2017 – NMED Approval Chromium Background Study Report
September 28, 2017 – LANL Extension Request for Multiple Activities Work Plan for the Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 Work Plan #5
September 25, 2017 – NMED GWQB – NMED Response – Notification of Commencement of Injection at CrIN-6, Discharge Permit DP-1835, Class V Underground Injection Control Wells
September 15, 2017 – NMED Approval Drilling Work Plan for Groundwater Extraction Well CrEX-4
September 11, 2017 – Approval with Modifications 2016 Sandia Wetland Performance Report
September 1, 2017 – LANL, DP-1835, Notification of Temporarily Limit Injection into CrIN-1 and CrIN-6
August 28, 2017 – LANL Integrity Testing of Distribution Piping from CrEX-1, CrEX-2, and CrEX-3 to CrIn-1, CrIN-2, CrIN-3, CrIN-4, and CrIN-5, Discharge Permit 1835, Class V Underground Injection Control Wells
August 28, 2017 – LANL Condition No. 3 Extension Request, Discharge Permit DP-1835, Class V Underground Injection Control Wells
July 31, 2017 – NMED Approval Pilot-Scale Amendments Testing Work Plan for Chromium in Groundwater Beneath Mortandad Canyon TA05 38153
July 27, 2017 – LANL Fact Sheets for CrIN-6 TA05 38145
July 21, 2017 – NMED GWQB Discharge Permit Amendment, Los Alamos National Laboratory Underground Injection Control Wells, DP-1835 TA05 38147
July 17, 2017 – NMED Approval Chromium Extraction Well Evaluation Report and Recommendations for CrEX-2 TA05 38129
July 13, 2017 – LANL As-Built Specifications for CrEX-2, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA05 38130
July 13, 2017 – LANL Notification of Commencement of Injection at CrIN-1, CrIN-2, and CrIN-3, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA05 38128
July 11, 2017 – LANL Pilot-Scale Amendments Testing Work Plan for Chromium in Groundwater beneath Mortandad Canyon TA05 38116
June 28, 2017 – LANL Discharge Permit 1835 Proposed Updates TA03 38120
June 1, 2017 – LANL Fact Sheets for CrEX-2 TA05 38072
May 31, 2017 – LANL Quarterly Report – 2017 Quarter 1, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA03 38093
May 15, 2017 – LANL Annual Periodic Monitoring Reports for the Material Disposal Area C, Technical Area 54, and Chromium Investigation Monitoring Groups TA03 38050
May 12, 2017 – NMED Approval with Modification Well Completion Report for Chromium Plume Control Interim Measure and Plume-Center Characterization Injection Wells CrIN-1, CrIN-2, CrIN-3, CrIN-4, and CrIN-5 TA05 38057
April 27, 2017 – LANL 2016 Sandia Wetland Performance Report TA03 38011
April 25, 2017 – LANL Chromium Extraction Well Evaluation Report and Recommendations for CrEX-2 TA03 38006
March 31, 2017 – NMED GWQB Response to Notice of Intent to Discharge; DP-1835 TA03 98537
March 28, 2017 – LANL Well Completion Report for Chromium Plume Control Interim Measure and Plume-Center Characterization Injection Wells CrIN-1, CrIN-2, CrIN-3, CrIN-4, and CrIN-5 TA05 37956
February 27, 2017 – LANL Quarterly Report – 2016 Quarter 4, Discharge Permit DP-1835 TA03 37929
February 20, 2017 – NMED GWQB Response to Notice of Intent to Discharge; DP-1835 TA03 37922
February 16, 2017 – NMED GWQB Confirmation of Compliance with Discharge Permit 1835 Pre-Discharge Requirements, Los Alamos National Laboratory Underground Injection Control Wells CrIN-1, CrIN-2, and CrIN-3 TA03 37920
February 13, 2017 – LANL Work Plan #3 Discharge Report, Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 TA05 37916
January 30, 2017 – LANL Field Summary Report for Alluvial Piezometers in Sandia Canyon TA72 37871
January 19, 2017 – LANL Notice of Intent to Conduct a Tracer Study at Los Alamos National Laboratory TA03 37900
January 4, 2017 – NMED Approval Drilling Work Plan for Groundwater Injection Well CrIN-6 TA-05 37843
2016
December 13, 2016 – LANL Drilling Work Plan for Groundwater Injection Well CrIN-6 TA-05 37822
December 9, 2016 – LANL Mechanical Integrity Testing of Injection Wells CrIN-1, CrIN-2, and CrIN-3, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-05 37828
December 7, 2016 – NMED GWQB Confirmation of Compliance with Discharge Permit 1835 Pre-Discharge Requirements, Los Alamos National Laboratory Underground Injection Control Wells TA03 37815
November 28, 2016 – NMED Approval with Modifications 2015 Sandia Wetland Performance Report TA-03 37809
November 22, 2016 – NMED Periodic Monitoring Report for Chromium Investigation Monitoring Group, Second Quarter, Monitoring Year 2016 TA-03 37811
November 18, 2016 – NMED Approval with Modifications 2015 Sandia Wetland Performance Report TA03 37809
November 15, 2016 – LANL Results from Integrity Testing of Distribution Piping from CfEX-1 to CrIN-4 and CrIN-5, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-03 37804
November 10, 2016 – LANL Mechanical Integrity Testing of Injection Wells CrIN-4 and CrIN-5, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-03 37803
November 10, 2016 – LANL Documentation of Treatment Efficiency, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-03 37801
November 3, 2016 – LANL Notification of Commencement of Injection, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-03 37784
October 17, 2016 – NMED GWQB Mechanical Integrity Testing, Los Alamos National Laboratory Underground Injection Control Wells, Discharge Permit 1835 33781
October 14, 2016 – LANL Proposed Test Method, Distribution Piping, Discharge Permit DP-1835, Class V Underground Injection Control Wells TA-03 37757
October 11, 2016 – NMED Approval Completion Report for Groundwater Extraction Well CrEX-3 TA-05 37751
October 4, 2016 – LANL Chromium Project Field Work Implementation Schedule
September 26, 2016 – LANL Fact Sheets for CrIN-3
September 6, 2016 – LANL Completion Report for Groundwater Extraction Well CrEX-3
August 31, 2016 – NMED GWQB Discharge Permit Issuance, LANL Underground Injection Control Wells, Discharge Permit 1835
August 24, 2016 – LANL Submittal of the Periodic Monitoring Reports for Chromium Investigation, Technical Area 54, Technical Area 16 260, Pajarito General Surveillance, and Material Disposal Area AB Monitoring Groups
August 18, 2016 – LANL Submittal of the Fact Sheets for CrIN-5
August 11, 2016 – LANL Submittal of the Fact Sheets for CrIN-1
August 11, 2016 – NMED Request to Discontinue the Monthly Email Notification on the Progress of the Office of the State Engineer TA-03 37719
August 4, 2016 – LANL Filing of 100% Design Plans and Specification, Discharge Permit Application DP-1835, Class V Underground Injection Control Wells TA-7711
June 30, 2016 – LANL Request to Discontinue the Monthly Email Notification on the Progress of the Office of the State Engineer Application Process
June 27, 2016 – LANL Submittal of the Facts Sheets for CrIN-4 37590
June 14, 2016 – LANL Submittal of the Fact Sheets for Injection Well CrIN-2 37578
June 3, 2016 – NMED Approval Second Request for Extension to Initiate Pumping Tests at CrEX-1 and CrEX-3
May 25, 2016 – LANL Second Request for Extension to Initiate Pumping Tests at CrEX-1 and CrEX-3
May 25, 2016 – LANL Amendment to Discharge Permit Application DP-1835
May 25, 2016 – LANL Second Request for Extension to Initiate Pumping Tests at CrEX-1 and CrEX-3
May 24, 2016 – NMED GWQB Approval with Modification of Workplan #3 for Treatment and Land Application of Groundwater at TA-05, Los Alamos National Laboratory, Discharge Permit 1793
May 17, 2016 – LANL Submittal of the Periodic Monitoring Reports for Chromium Investigation, Technical Area 54, and Material Disposal Area C Monitoring Groups
May 12, 2016 – LANL Additional Information for Discharge Permit Application DP-1835
May 4, 2016 – LANL Submittal of the Fact Sheets for CrEX-3 37557
May 3, 2016 – NMED Approval Request for Extension to Complete Regional Aquifer Well R-61r
May 3, 2016 – NMED Approval Request for an Extension to Conduct Pumping Tests at CrEX-1 and CrEX-3
May 2016 – LANL Field Implementatin Plan for Alluvial Piezometers in Sandia Canyon General 38024
April 28, 2016 – LANL Submittal of the 2015 Sandia Wetland Performance Report
April 20. 2016 – LANL Request for Extension to Complete Regional Aquifer Well R-61r
April 20, 2016 – LANL Request for Extension to Conduct Pumping Tests at CrEX-1 and CrEX-3
March 18, 2016 – NMED GWQB Hearing Determination Request, DP-1835, Class V Underground Injection Control TA03 37523
March 17, 2016 – NMED Approval with Modification Drilling Work Plan for Alluvial Piezometers in Sandia Canyon
March 16, 2017 – LANL Multiple Activities Work Plan for the Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 Work Plan #5 TA03 37975
March 14, 2016 – NMED GWQB Spill Response Assessment and Closure of Release ID# 2011-319 occurring at Monitoring Well R-61, reported to NMED on November 16, 2011
March 4, 2016 – LANL Notice of Intent to Conduct Tracer Study at Los Alamos National Laboratory
March 2016 – LANL WCSF: Drilling Work Plan for Alluvial Piezometers in Sandia Canyon General 30822
March 2016 – LANL IWD 2016 Drilling and Installation of Alluvial Piezometers in Sandia Canyon General 38023
February 25, 2016 – LANL Submittal of the Periodic Monitoring Reports for Chromium Investigation, Mortandad-Sandia, Technical Area 21, and White Rock Monioring Groups
February 22, 2016 – LANL Discharge Permit DP-1793 Annual Monitoring Report for 2015
February 18, 2016 – LANL Submittal of the Completion Report for Combined Regional Aquifer Well R-67 and Chromium Corehole 6 37430
February 16, 2016 – EPA Technical Review comments of the Interim Measures Work Plan for Chromium Plume Control 37493
February 10, 2016 – NMED Approval Request for a Two-Year Extension to Install the Angled Boring for Sandia Wetland Borehole 1 (SWB-1)
February 3, 2016 – LANL Request for a Two-Year Extension to Install the Angled Boring for Sandia Wetland Borehole 1 (SWB-1) TA03 37365
January 22, 2106 – NMED Approval with Modifications Drilling Work Plan for Chromium Plume Control Interim Measure and Plume-Center Characterization Injetion Wells CrIN-1 through CrIN-6 37439
2015
December 30, 2015 – NMED Approval Drilling Work Plan for Groundwater Extraction Well CrEX-3 37426
December 15, 2015 – LANL Submittal of the Drilling Work Plan for Alluvial Piezometers in Sandia Canyon TA03 376995
December 15, 2015 – LANL Submittal of the Drilling Work Plan for Chromium Plume Control Interim Measure and Plume-Center Characterization Injection Wells CrIN-1 through CrIN-6 37343
November 24, 2015 – LANL Review Comments, Draft Discharge Permit DP-1835, Class V Underground Injection Control Wells
November 17, 2015 – LANL Floodplain Assessment of the Chromium Plume Control Interim Measure and Plume-Center Characterization in Mortandad Canyon 37404
November 12, 2015 – LANL Submittal of the Drilling Work Plan for Groundwater Extraction Well CrEX-3 37331 TA05
October 29, 2015 – NMED Discharge Permit DP-1793, Modification of Approval Conditions related to Workplan #2, DP-1793
October 27, 2015 – NMED Summary of October 21, 2015 Meeting
October 15, 2015 – NMED Approval with Modifications Work Plan for Chromium Plume Center Characterization
October 19, 2015 – San Ildefonso – NMED Approval with Modifications Interim Measures Work Plan for Chromium Plume Control
October 15, 2015 – NMED Approval with Modifications Interim Measures Work Plan for Chromium Plume Control
October 8, 2015 – LANL Request for Additional Information, Class V Underground Injection Control Wells, Discharge Permit DP-1835
October 8, 2015 – NMED Discharge Permit DP-1793, Approval of Workplan #2 for Treatment and Land Application of Groundwater
September 3, 2015 – LANL Multiple Activities Work Plan for the Treatment and Land Application of Groundwater from Mortandad and Sandia Canyons, DP-1793 WP#2
September 1, 2015 – NMED Approval Completion Report for Chromium Project Coreholes 1 through 5
July 28, 2015 – LANL Submittal of the Work Plan for Chromium Plume Center Characterization TA05 37208
July 27, 2015 – NMED GWQB Discharge Permit, DP-1793, Los Alamos National Laboratory
May 26, 2015 – LANL Submittal of the Interim Measures Work Plan for Chromium Plume Control
February 19, 2015 – NMED Approval Drilling Work Plan for Groundwater Monitoring Well SIMR-2 (Formerly R-68) 36949 TA 09
February 2, 2015 – LANL Submittal Drilling Work Plan for Groundwater Monitoring Well SIMR-2 (Formerly R-68) 36891 TA 09
February 2, 2015 – LANL Submittal Drilling Work Plan for Regional Aquifer Well R-61r 36892 TA 03
January 29, 2015 – LANL Submittal of the completion Report for Groundwater Extraction Well CrEX-1 36890 TA 05
January 29, 2015 – LANL Reference 254859, February 28, 2014. Waste Characterization Strategy Form for Chromium Well CrEx-1, Los Alamos National Laboratory, Los Alamos, New Mexico. (LANL 2014, 254859) 36925 General
January 29, 2015 – LANL Reference 254859, February 28, 2014. Waste Characterization Strategy Form for Chromium Well CrEx-1, Los Alamos National Laboratory, Los Alamos, New Mexico. (LANL 2014, 254859) 36925 General
January 29, 2015 – LANL 600140 DOE (U.S. Department of Energy), May 19, 2014. “Well Pump Tests Phase II in Sandia and Mortandad Canyons,” U.S. Department of Energy Categorical Exclusion Determination Form, Los Alamos Site Office, Los Alamos, New Mexico. (DOE 2014, 600140) 36930 General
January 29, 2015 – LANL Field Implementation Plan for CrEX-1 36926 General
January 29, 2015 – LANL 600131 Yellow Jacket Drilling, June 27, 2014. “Integrated Work Document for Drilling and Installation of LANL Well [CrEX-1],” Gilbert, Arizona. (Yellow Jacket Drilling 2014, 600131) 36927 General
January 29, 2015 – LANL 600135 Dale, M., June 19, 2014. FW: Extraction Well CrEX-1 start up notification. E-mail message to H. Shen (NMED) and D. Katzman (LANL) from M. Dale (NMED), Santa Fe, New Mexico. (Dale 2014, 600135) 36928 General
January 29, 2015 – LANL 600136 Moench, A.F., June 1997. “Flow to a Well of Finite Diameter in a Homogenous, Anisotropic Water Table Aquifer,” Water Resources Research, Vol. 33, No. 6, pp. 1397–1407. (Moench 1997, 600136) 36929 General
January 29, 2015 – LANL 600141 OSE (New Mexico Office of the State Engineer), July 21, 2014. “Application for Permit to Drill a Well with No Consumptive Use of Water,” OSE File No. RG 94875, Santa Fe, New Mexico. (OSE 2014, 600141) 36931 General
January 22, 2015 – LANL Submittal: Fact Sheet for Chromium Corehole 3 36886 TA 00
2014
December 10, 2014 – LANL Submittal of the Fact Sheets for Chromium Corehole 1 36837 TA 05
December 2, 2014 – NMED Evaluation of Regional Well R-61 36830 TA 03
November 25, 2014 – LANL Submittal of the Periodic Monitoring Reports for Chromium (2), Los Alamos/Pueblo, Material Disposal Area C, and Mortandad/Sandia Monitoring Groups 36756 TA 00
November 3, 2014 – LANL Submittal of the Fact Sheets for CrEX-1 36734 TA 03
October 6, 2014 – LANL Submittal of the Response to Comments and Replacement Pages – completion Report for the Sandia Canyon Grade – Control Structure 36624 TA 03
September 26, 2014 – Approval with Modifications Drilling Work Plan for Chromium Project Coreholes 36651 TA 00
September 23, 2014 – NMED Approval Drilling Work Plan for an Investigation Borehole Beneath the Sandia Canyon Wetland 36723 TA 03
September 5, 2014 – NMED Approval with Modifications Completion Report for Sandia Canyon Grade – Control Structure 36701 TA 03
September 5, 2014 – NMED Status Report for Pumping Test at Well R-42 36705 TA 05
July 30, 2014 – LANL Submittal of the Drilling WP for Chromium Project Coreholes 36564 TA 00
June 30, 2014 – LANL Sandia Wetland Performance Report, Baseline Conditions 2012 – 2014 36364 TA 03
June 20, 2014 – LANL Drilling WP for and Investigation Borehole Beneath the Sandia Canyon Wetland 36356 TA 03
May 27, 2014 – LANL Extension Request to Submit the Drilling WP for Well R-67 (chromium) 36323 TA 03
May 27, 2014 – LANL Extension Request to Submit the Drilling WP for Well R-68 (chromium) 36324 TA 03
May 20, 2014 – LANL Submittal: Periodic Monitoring Reports for TA 54, White Rock, (2) Chromium Investigations, And MDA C Monitoring Groups 36317 TA 03
April 7, 2014 – Extension Request to Submit the 1st Annual Sandia Canyon Wetland Performance Monitoring Report for 2013 36279 TA 03
March 19, 2014 – NMED Plugging and Abandonment Summary Report for Boreholes 49-10046, 49-10047, 49-10048, Coreholes CH-1, CH-3, CH-4, Test Holes TH-4, TBM-1, TBM-2, and Layne Western Well 36265 TA 49
March 31, 2014 – Submittal of Summary Report for the 2013 Chromium Groundwater Aquifer Tests at R-42, R-28 and SCI-2 36274 TA 05
March 18, 2014 – LANL Submittal Drilling WP for Extraction Well crEX-1 36262 TA 03
February 26, 2014 – LANL Submittal: Periodic Monitoring Report for Chromium Investigation, MDA C, Pajarito, and Los Alamos and Pueblo Monitoring Groups 36
January 31, 2014 – LANL Justification for not Drilling well SCI-4 36238 TA 03
2013
December 23, 2013 – LANL 251704 USACE (U.S. Army Corps of Engineers), March 27, 2013. “Action No. SPA-2012-00050-ABQ, McCann, LANL, Sandia Canyon, Wetland, Los Alamos County, NM,” USACE letter to J. McCann (LANL) from W. Oberle (USACE), Albuquerque, New Mexico. (USACE 2013, 251704) 36154 General
December 23, 2013 – LANL 251705 (Los Alamos National Laboratory), September 4, 2013. “Action No. SPA-2012-00050-ABQ Potential Removal and Placement of Sediments at Sandia Canyon Wetland,” Los Alamos National Laboratory letter (ENV-DO-13-0073) to W. Oberle (USACE) from A.R. Grieggs (LANL) and G.E. Turner (DOE-NA-00-LA), Los Alamos, New Mexico. (LANL 2013, 251705) 36153 General
December 23, 2013 – LANL 251706 USACE (U.S. Army Corps of Engineers), September 5, 2013. “Potential Violation – Action No. SPA-2012- 00050-ABQ, McCann, LANL, Sandia Canyon, Wetland, Los Alamos County, NM,” USACE letter to G. Turner (DOE-NA-00-LA) and A.R. Grieggs (LANL) from W. Oberle (USACE), Albuquerque, New Mexico. (USACE 2013, 251706) 36155 General
December 23, 2013 – LANL Final Project Report, Land Application of Treated GW From Monitoring Wells R-28 & SCI-2, DP-1793 36106 TA 05
December 19, 2013 – LANL Completion Report for Sandia Canyon Wetland Grade Control Structure 36096 TA 03
November 19, 2013 – LANL Final Project Report, Land application of Treated GW from Monitoring Well R-42, DP-1793 36068 TA 05
November 19, 2013 – LANL Submittal of the Periodic Monitoring Reports for Chromium Investigation, Material Disposal Area C, Pajarito, and Los Alamos and Pueblo Monitoring Groups 36070 TA 00
October 8, 2013 – NMED Extension Request Denial to submit the WP for the Replacement of R-61 36765 TA 03
September 30, 2013 – Extension Request to Submit the WP for the Replacement of Regional Well R-61 36618 TA 03
September 27, 2013 – LANL Response to the Approval with Modification for the IM WP for the Evaluation of Chromium Mass Removal – Status Report for Pumping Test at Well R-42 36020 TA 05
September 27, 2013 – LANL Response to the Approval with Modification for the IM WP for the Evaluation of Chromium Mass Removal – Status Report for Pumping Test at Well R-42 36020 TA 05
September 23, 2013 – LANL Response to Review of the Periodic Monitoring Report for Mortandad and Sandia Watersheds General 36015 TA 03
September 23, 2013 – LANL Response to Review of the Periodic Monitoring Report for Mortandad and Sandia Watersheds General 36015 TA 03
September 4, 2013 – LANL Action No. SPA-2012-00050-ABQ Potential Removal and Placement of Sediments at Sandia Canyon Wetlands 35988 TA 05
August 29, 2013 – LANL Reference 243627 Stone, C.D., November 6, 2002. “Chromium (Cr),” Texas Commission on Environmental Quality interoffice memorandum to TARA Staff and Remediation Division Staff through C. Clarke and T. McCoy from C.D. Stone., Austin, Texas. (Stone 2002, 243627) 35997 General
August 23, 2013 – NMED Recent Sampling Results for R-35a and Cr Results for PM-4 35975 TA 03
August 23, 2013 – LANL Submittal: Periodic Monitoring Reports for Chromium Investigation, MDA AB, TA 54, and TA 16-260 Monitoring Groups 35979 TA 16
August 16, 2013 – NMED Dilution Tracer Schedule for R-42 & R-28 35973 TA 05
July 29, 2013 – LANL Supplemental Information, Temporary Permission to Discharge Treated GW from a Pumping Test at Monitoring Well R-28, DP-1793 35961 TA 05
July 15, 2013 – LANL Revised Sampling WP for Mortandad Sandia 4th Quarter 35947 TA 03
July 11, 2013 – LANL Request for Variance to Exclude SCA-2, R-61S2, and R-43S2, from the Sampling Requirements of the 4th 36382 TA 03
June 26, 2013 – NMED Approval with Modifications Interim Measures Work Plan for the Evaluation of Chromium Mass Removal 35929 TA 03
June 23, 2013 – LANL Submittal of the Evaluation of Regional Well R-61 36358 TA 03
June 7, 2013 – LANL Extension Request for Submittal of the WP for the Replacement of Regional Well R-61 35907 TA 03
May 28, 2013 – LANL Evaluation to Determine the Cause of Reducing Conditions Observed in Regional Aquifer Monitoring Wells R-54 and R-61 35900 TA 03
May 28, 2013 – LANL Extension Request to Complete the WP for the Replacement of Regional Well R-61 35879 TA 03
May 28, 2013 – LANL Email: Followup to NMED Questions; Chromium, Mortandad Canyon IM WP 35890 TA 05
May 28, 2013 – LANL Periodic Monitoring Reports for chromium Investigation and MDA C Monitoring Groups 35881 TA 03
May 22, 2013 – LANL 30 Day Extension Request for DOE’s Review of the Chromium Travel Times in the Regional Aquifer, Mortandad Canyon, April 29, 2013 35894 TA 03
May 7, 2013 – NMED Summary Report for Redevelopment of Regional Well R-61 35838 TA 03
May 2, 2013 – NMED Temporary Permission to Discharge, Treated Well Development and Pump Test GW Discharge at Regional Monitoring Well R-42, DP-1793 35852 TA 05
May 2, 2013 – Temporary Permission to Discharge, Treated Well Development and Pump Test GW Discharge at Regional Monitoring Well R-28, DP-1793 35853 TA 05
April 30, 2013 – LANL Submittal of Interim Measures Work Plan for the Evaluation of Chromium Mass Removal 35819 TA 03
April 11, 2013 – LANL Evaluation to Determine the Cause of Reducing Conditions Observed in Regional Aquifer Wells R-54 and R-61 35807 TA 03
March 29, 2013 – NMED Proposed Revisions to R-61 Redevelopment Work Plan 35790 General
March 29, 2013 – LANL 238466 TerranearPMC, December 2012. “Field Implementation Plan to Plug and Abandon Boreholes 49 10046, 49-10047, 49-10048, Coreholes CH-1, CH-3, CH-4, Test Hole TH-4, TBM-1, TBM-2, and Layne Western Well,” plan prepared for Los Alamos National Laboratory, Los Alamos, New Mexico. (TerranearPMC 2012, 238466) 35789 General
March 28, 2013 – LANL Submittal: Summary Report for Redevelopment of Regional Well R-61 35798 TA 03
March 26, 2013 – LANL Off Site Chromium Migration, Sandia and Mortandad Canyons 35782 TA 03
March 15, 2013 – NMED Response to NOI to Discharge: Discharge Permit not Required for Land Application of Rehabilitation Purge Water at Monitoring Well R-61 35763 TA 03
March 15, 2013 – Additional Information: Request for Temporary Permission to Discharge Treated GW from a Pumping Test at Well R-42, DP-1793 35766 TA 05
February 27, 2013 – LANL Request for Temporary Permission to Discharge Treated GW from a Pumping Test at Well R-28, DP-1793 35756 TA 05
February 19, 2013 – LANL Periodic Monitoring reports for Chromium Investigation, Mortandad & Sandia Watersheds General Surveillance, TA 21, TA 54 and White Rock & Rio Grande Watershed General Surveillance Monitoring Groups 35736 TA 03
January 25, 2013 – NMED Response Proposal to Submit Interim Measures Work Plan for Chromium Contamination in Groundwater 35714 TA 03
2012
December 21, 2012 – LANL Proposal to Submit IM WP for Chromium Contamination in GW 35637 TA 03
December 1, 2012 – LANL Status Report, Sandia /Mortandad Watershed January 1 – June 30, 2012 35647 TA 03
November 20, 2012 – NMED NOI to Discharge Redevelopment Water from Regional Aquifer Monitoring Well R-61 35764 TA 03
November 29, 2012 – LANL Submittal: Periodic Monitoring Reports for Chromium Investigation, Pajarito Watershed General Surveillance, TA 54 Monitoring Group, MDA C Monitoring Group, and TA 16 260 Monitoring Groups 35601 TA 16
September 28, 2012 – LANL Reference 226765 Jamieson-Hanes, J.H., B.D. Gibson, M.B.J. Lindsay, Y. Kim, C.J. Ptacek, and D.W. Blowes, June 2012.“Chromium Isotope Fractionation during Reduction of Cr(VI) under Saturated Flow Conditions,” Environmental Science & Technology, Vol. 46, No. 12, pp. 6783–6789. (Jamieson-Hanes et al. 2012, 226765) 35499 General
September 28, 2012 – LANL Reference 226764 Berna, E.C., T.M. Johnson, R.S. Makdisi, and A. Basu, February 2010. “Cr Stable Isotopes as Indicators of Cr(Vi) Reduction in Groundwater: A Detailed Time-Series Study of a Point-Source Plume,” Environmental Science & Technology, Vol. 44, No. 3, pp. 1043–1048. (Berna et al. 2010, 226764) 35498 General
September 28, 2012 – LANL Reference 226766 Raddatz, A.L., T.M. Johnson, and T.L. McLing, January 2011. “Cr Stable Isotopes in Snake River Plain Aquifer Groundwater: Evidence for Natural Reduction of Dissolved Cr(Vi),” Environmental Science & Technology, Vol. 45, No. 2, pp. 502–507. (Raddatz et al. 2011, 226766) 35500 General
September 28, 2012 – LANL Phase 2 IR for Sandia Canyon 35521 TA 03
September 24, 2012 – NMED Approval Request for Extension for Completion of R-61 Redevelopment and Submittal of the Summary Report 35481 TA 03
September 17, 2012 – NMED Approval with Modification Completion Report for Regional Aquifer Well R-62 35486 TA 05
September 13, 2012 – Extension Request for Completion of R-61 Redevelopment and Submittal of the Summary Report 35474 TA 03
August 30, 2012 – Submittal: Periodic Monitoring Reports for Chromium Investigation, Los Alamos/Pueblo Watershed General Surveillance, and MDA AB Monitoring Groups 35465 TA 00
August 27, 2012 – LANL Submittal: Replacement Appendix B of the R-62 Well Completion Report 35458 TA 05
August 24, 2012 – NMED Spill Response Assessment and Closure of Release ID# 2012-332 Occurring at Monitoring Wells 03-B-13, 18MW-18, CdV-16-4ip, R-4, & R-62 Reported on June 14, 2012 35460 TA 05
August 10, 2012 – LANL Clarification of June 18, 2012, Proposal to Perform IM Alternatives Analysis for chromium in Sandia and Mortandad Canyons 35391 TA 03
July 10, 2012 – NMED Approval Work Plan for Redevelopment of Monitoring Well R-61 35342 TA 03
July 5, 2012 – NMED Email: Reducing Agent as a Remedy for Vadose Zone Chromium VI 35332 TA 03
June 26, 2012 – LANL Submittal: WP for Redevelopment of Monitoring Well R-61 35316 TA 03
June 18, 2012 – LANL Proposal to Perform IM Alternative Analysis for chromium in Sandia and Mortandad Canyons 35298 TA 03
June 5, 2012 – NMED Approval Request for Extension for the Construction of the Sandia Wetland Grade-Control Structure 35276 TA 03
May 23, 2012 – LANL Extension Request for the Construction of the Sandia Canyon Wetland Grade Control Structure 35251 TA 03
May 21, 2012 – LANL Submittal: Periodic Monitoring Report for the Chromium Investigation Monitoring Group, MDA C Monitoring Group, TA 54 Monitoring Group, and TA 16 260 Monitoring Group 35256 TA 16
May 9, 2012 – NMED Approval Request for Extension for the Sandia Canyon Phase II Investigation Report 35237 TA 03
May 1, 2012 – LANL 210306 Crook, N., B. Cubbage, G. Noonan, and M. McNeill, October 17, 2011. “Final Report, Geophysical Survey of the Wetland Area of Upper Sandia Canyon,” report prepared for TerranearPMC by hydroGEOPHYSICS, Tucson, Arizona. (Crook et al. 2011, 210306) 35212 General
May 1, 2012 – LANL 203414, May 6, 2011. “Waste Characterization Strategy Form for R-62 Installation of Regional Aquifer Well,” Los Alamos National Laboratory, Los Alamos, New Mexico. (LANL 2011, 203414) 35218 General
April 27, 2012 – LANL Extension Request for the Sandia Canyon Phase 2 IR 35199 TA 03
April 19, 2012 – LANL Submittal: Completion Report for Regional Aquifer Well R-62 35180 TA 05
April 2, 2012 – NMED Approval; Request to Defer Armoring of the Stilling Basin in Upper Sandia Canyon 35157 TA 03
March 29, 2012 – NMED 2nd Extension Request Approval to Submit the R-62 Well Completion Report 35156 TA 05
March 29, 2012 – LANL Final Project Report, Land Application of Treated GW from Monitoring Well R-28, Discharge Permit DP-1793 35153 TA 05
March 26, 2012 – LANL 2nd Extension Request to Submit the R-62 Well Completion Report 35132 TA 05
February 29, 2012 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, White Rock Canyon, Water Canyon/Canon de Valle, and Ancho Watersheds 35089 TA 03
February 23, 2012 – LANL Request to Defer Armoring of the Stilling Basin in Upper Sandia Canyon 35081 TA 03
February 21, 2012 – NMED Approval Request for Extension to Submit the Well Completion Report for R-62 35116 TA 05
February 15, 2012 – LANL Extension Request to Submit the Well Completion Report for R-62 35078 TA 05
January 30, 2012 – NMED Email: HACH Meter +6Cr for R-62 35064 TA 05
January 13, 2012 – NMED Temporary Permission to Discharge, Treated Well Development and Pump Test GW Discharge at Regional Monitoring Well R-28, DP-1793 35038 TA 05
2011
December 21, 2011 – NMED Email: GW Data for the Chromium Investigation Monitoring Group – 1st Quarter Sampling 2011 35002 General
December 20, 2011 – LANL Discharge Permit Application for the Land Application of Treated GW from a Pumping Test at Well R-28 35028 TA 05
December 15, 2011 – NMED Approval Extension Request to Submit the Phase II Investigation Report for Sandia Canyon 34996 TA 03
December 1, 2011 – LANL Response to Request for Information Regarding Regional Well R-61 Stormwater Pond 34967 TA 03
December 2, 2011 – LANL Extension Request to Submit the Phase 2 IR for Sandia Canyon 34954 TA 03
November 23, 2011 – LANL Periodic Monitoring Reports for Pajarito, Mortandad and Sandia, and Water Canyon/Canon de Valle Watersheds 34941 TA 03
November 21, 2011 – NMED Approval Extension Request to Submit the Work Plan for Well SCI-4 34936 TA 05
November 17, 2011 – NMED GW R-61 Drilling Mud Pit Samples, Mortandad Canyon 35029 TA 03
November 15, 2011 – NMED Approval with Modification Work Plan and Final Design for Stabilization of the Sandia Canyon Wetland 34919 TA 03
November 10, 2011 – LANL Extension Request to Submit the WP for Well SCI-4 34917 TA 05
November 9, 2011 – NMED Spill Response Assessment and Closure of Release ID# 2011-312 Occurring at Monitoring Wells R-1 & R-61, Reported to NMED on August 15, 2011 34905 TA 03
November 9, 2011 – NMED NOI Response; Discharge Permit Required for Treated Well Development and Pump Test GW Discharge at Regional Monitoring Well R-28 34903 TA 05
November 3, 2011 – LANL Submittal: Fact Sheets for Regional Well R-62 34891 TA 05
September 30, 2011 – LANL 201256 TerranearPMC, March 2011. “Drilling Plan for Regional Aquifer Well R-61,” plan prepared for Los Alamos National Laboratory, Los Alamos, New Mexico. (TerranearPMC 2011, 201256) 34805 General
September 30, 2011 – LANL 204885 (Los Alamos National Laboratory), March 8, 2011. “Waste Characterization Strategy Form for Installation of Regional Aquifer Well R-61,” EP2011-0083, Los Alamos National Laboratory, Los Alamos, New Mexico. (LANL 2011, 204885) 34808 General
September 29, 2011 – WP and final Design for Stabilization of the Sandia Canyon Wetland 34787 TA 03
September 27, 2011 – LANL Submittal: Completion Report for Regional Aquifer Well R-61 34777 TA 03
September 22, 2011 – NMED Approval Extension Request Completion of Regional Groundwater Monitoring Well R-62 34768 TA 05
September 14, 2011 – NMED Approval with Modification Extension Request for Submittal of the Work Plan for Perched-Intermediate Well SCI-4 34757 TA 03
September 12, 2011 – NMED Email: Revision to Annular Fill: Well R-62 Schematic and Plan 34750 TA 05
September 2, 2011 – LANL Extension Request for Submittal of the WP for Perched Intermediate Well SCI-4 34724 TA 03
September 1, 2011 – NMED Email: R-62 Well Design 34723 TA 05
August 31, 2011 – LANL Email: R-62 Well Design Final 34722 TA 05
August 24, 2011 – LANL NOI to Discharge Treated GW from R-28 Development and Pumping Test 34713 TA 05
August 23, 2011 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, Los Alamos, Water Canyon/Canon de Valle, and Ancho Watersheds 34699 TA 00
August 4, 2011 – LANL Extension Request to Submit the Final Design of Grade Control Structure to Stabilize the Eastern end of Sandia Canyon Wetland Required by Approval with Modifications to the Phase 2 IWP for Sandia Canyon 34657 TA 03
July 29, 2011 – NMED Approval with Modifications Completion Report for Reqional Aquifer Well R-50 34645 TA 03
June 14, 2011 – NMED Approval Extension Request for Completion of R-62 and SCI-3 34580 TA 05
June 9, 2011 – NMED Approval with Modification Interim Measures Work Plan for Stabilization of hte Sandia Canyon Wetland 34571 TA 03
June 9, 2011 – LANL Request for Extension for Completion of R-62 & SCI-3 34572 TA 05
May 25, 2011 – Fact Sheet for R-61 34529 TA 05
May 16, 2011 – LANL IM WP for Stabilization of the Sandia Canyon Wetland 34512 TA 03
May 6, 2011 – LANL Periodic Monitoring Reports for Mortandad, Sandia & Pajarito Watersheds 34502 TA 03
May 2, 2011 – NMED Notice of Agreement Force Majeure R-61 Well Completion 35187 TA 03
April 28, 2011 – LANL Update on April 25, 2011, Oral Notification of Delays at Well R-61 and Written Notice of Force Majeure 34487 TA 03
April 6, 2011 – NMED Email: R-61 Proposed Well Design 34458 TA 03
March 30, 2011 – NMED Approval with Modifications Extension Request Completion of Well R-61 34446 TA 03
March 28, 2011 – NMED Status of Perched-Intermediate Well SCI-4 35185 TA 03
March 17, 2011 – LANL Extension Request for Completion of Well R-61 34409 TA 03
March 17, 2011 – LANL Status of Perched Intermediate Well SCI-4 34407 TA 03
March 9, 2011 – NMED Approval with Modification Drilling Work Plan for Perched-Intermediate Well SCI-3
February 14, 2011 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, Los Alamos, Water Canyon/Canon de Valle, Ancho, And White Rock 34337 TA 00
February 7, 2011 – NMED Approval Request for Extension for the Submittal of Work Plan to Stabilize the Eastern End of Sandia Canyon Wetland
January 28, 2011 – LANL Extension Request for the Submittal of WP to Stabilize the Eastern End of Sandia Canyon Wetland Required by Approval with Modification to the Phase 2 IWP for Sandia Canyon 34280 TA 03
January 14, 2011 – NMED Review Periodic Monitoring Report for Mortandad and Sandia Watersheds, May 3 – May 19, 2010 34237 TA 00
January 4, 2011 – NMED Approval with Modification Phase II Investigation Work Plan for Sandia Canyon 34230 TA 03
2010
December 8, 2010 – NMED Approval with Modification Drilling WP for Regional Aquifer Well R-62 34183 TA 05
November 29, 2010 – LANL Periodic Monitoring Reports for Mortandad and Sandia and Pajarito Watersheds 34136 TA 03
November 18, 2010 – LANL Response to the Review of Periodic Monitoring Reports for Mortandad and Sandia Watersheds, August 3 – 19, 2009, and November 2 – 20, 2009 34113 TA 00
November 4, 2010 – NMED Approval with Modification Drilling WP for Regional Aquifer well R-61 34135 TA 03
October 29, 2010 – LANL WP for R-62 34064 TA 05
October 15, 2010 – LANL Response to the Review of Periodic Monitoring Reports for Mortandad and Sandia Watersheds, August 3 – 19, 2009, and November 2 – 20, 2009 34042 TA 00
October 15, 2010 – Submittal: WP for Well R-61 34040 TA 03
October 14, 2010 – NMED Review of Periodic Monitoring Report for Mortandad and Sandia Watersheds, January 25 – February 12, 2010 35446 TA 03
September 10, 2010 – NMED Review of Periodic Monitoring Report for Mortandad and Sandia Watersheds, August 3 – August 19, 2009, and November 2 – November 29, 2009 33946 TA 00
August 19, 2010 – Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, Ancho Water & White Rock Canyons 33877 TA 03
July 30, 2010 – LANL 108564 TerranearPMC, October 2009. “Drilling Plan for Regional Aquifer Well R-50,” plan prepared for LANL 33850 General
July 30, 2010 – LANL Reference 107445, November 2, 2009. Waste Characterization Strategy Form for Regional Well for Chromium Investigation, R-50 (Mortandad Canyon), Regional Groundwater Well Installation and Corehole Drilling, Los Alamos, New Mexico. (LANL 2009, 107445) 33847 General
July 30, 2010 – LANL Phase 2 IWP for Sandia Canyon 33836 TA 03
July 13, 2010 – LANL Completion Report for Regional Aquifer Well R-50 33796 TA 03
July 2, 2010 – NMED Spill Response Assessment and Closure of Release ID# 2010-263 Occurring at Monitoring Well R-50 33788 TA 03
June 24, 2010 – LANL Fax; 15 Day Sampling Notification for Lower Sandia Canyon Aggregate Area Investigation 33734 TA 53
June 1, 2010 – LANL IR for Upper Sandia Canyon Aggregate Area 33626 TA 03
May 25, 2010 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, and Los Alamos Watersheds 33615 TA 00
May 14, 2010 – NMED Spill Response Assessment and Closure of Release ID#2010-252 Occurring at Monitoring Well SCI-2, Discovered on March 15, 2010 33599 TA 53
May 13, 2010 – NMED Approval Request for Extension for the Submittal of the Phase II Investigation Work Plan for Sandia Canyon 33591 TA 03
May 3, 2010 – LANL Extension Request for Phase 2 IWP for Sandia Canyon 33503 TA 03
March 15, 2010 – LANL Well Completion Summary Fact Sheet for R-50 33263 TA 03
February 26, 2010 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Ancho, Water Canyon/Canon de Valle, Pajarito and White Rock Canyons 33169 TA 03
February 9, 2010 – NMED Approval with Modification Investigation Report for Sandia Canyon 33065 TA 03
January 5, 2010 – NMED Email: R-50 Abandoned Hole Backfill Proposal 32338 TA 03
2010
December 22, 2009 – NMED Approval Completion Report for Reqional Aquifer Well R-41
December 22, 2009 – NMED Approval Request Extension of Time for the Completion of Well R-50 32336 TA 03
December 15, 2009 – LANL Extension Request for the Completion of Well R-50 32302 TA 03
November 30, 2009 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Los Alamos, & Pajarito Watersheds 32254 TA 00
November 24, 2009 – NMED Approval Completion Report for Regional Aquifer Well R-45
October 30, 2009 – LANL Reference 107033 Peterson, M.L., G.E.J. Brown, G.A. Parks, and C.L. Stein, 1997. “Differential Redox and Sorption of Cr(III/VI) on Natural Silicate and Oxide Minerals: EXAFS and XANES Results,” Geochimica et Cosmochimica Acta, Vol. 61, No. 16, pp. 3399–3412. (Peterson et al. 1997, 107033) 32178 General
October 29, 2009 – NMED Approval with Modification Drilling Work Plan for Regional Aquifer Well R-50 32124 TA 03
October 29, 2009 – NMED Approval with Modification of Completion Report for Reqional Aquifer Well R-44
October 16, 2009 – LANL Drilling WP for Regional Aquifer R-50 32102 TA 03
October 15, 2009 – LANL IR for Sandia Canyon 32101 TA 03
October 2, 2009 – LANL Fax: 15 Day Sampling Notification for the Upper Sandia Canyon Aggregate Area 32081 TA 03
August 31, 2009 – LANL Periodic Monitoring Reports for Mortandad and Sandia, Pajarito, Water, Ancho & White Rock Canyons 31935 TA 03
August 31, 2009 – NMED Modification of Approval of Drilling WP for Los Alamos & Pueblo Canyons GW Monitoring Well Installations; Direction to Install Chromium Investigation Well R-50 31939 TA 00
September 26, 2008 – LANL Submittal: Well Completion Summary Fact Sheets for SCI-2 (within R-43) 30125 TA 03
August 6, 2009 – NMED Notice of Approval for the NOD Response for the IWP for Lower Sandia Canyon Aggregate Area and Revision 1 31875 TA 53
July 28, 2009 – NMED Approval of Request for Extension to Submit the Sandia Canyon Investigation Report 31850 TA 03
July 20, 2009 – LANL Submittal: NOD Response for the IWP for Lower Sandia Canyon Aggregate Area and Revision 1 31842 TA 53
July 17, 2009 – LANL Extension Request for the Submittal of the Sandia Canyon IR 31832 TA 03
June 23, 2009 – NMED NOD: IWP for Lower Sandia Canyon Aggregate Area 31706 TA 53
May 29, 2009 – LANL Periodic Monitoring Reports for Ancho, Mortandad, Sandia, Pajarito & Los Alamos Canyons 31660 TA 00
April 30, 2009 – LANL IWP & Historical IR for Lower Sandia Canyon Aggregate Area 31518 TA 53
March 18, 2009 – NMED Review of Periodic Monitoring Report for Sandia Watershed, February 6 – February 26, 2008 30940 TA 03
March 16, 2009 – LANL Completion Report for Wells R-43 & SCI-2 30644 TA 03
February 27, 2009 – LANL Periodic Monitoring Reports for Mortandad, Sandia, Los Alamos, Pajarito, White Rock, & Water Canyons 30061 TA 00
January 30, 2009 – LANL Reference 101914 , May 2008. Waste Characterization Strategy Form for the Chromium Wells (R-42 and SCI-2/R-43) Regional Groundwater Well Installation and Corehole Drilling, Los Alamos, New Mexico. (LANL 2008, 101914) 31267 General
January 30, 2009 – LANL 103940 TerranearPMC, June 2008. “Drilling Plan for Regional Aquifer Well R-42,” plan prepared for Los Alamos National Laboratory, Los Alamos, New Mexico. (TerranearPMC 2008, 103940) 31269 General
January 24, 2009 – LANL Completion Report for Regional Aquifer Well R-42 30155 TA 05
2008
December 19, 2008 – NMED Approval: NOD Response of Periodic Monitoring Report for Sandia Watershed, November 7 – November 19, 2007 30135 TA 03
December 8, 2008 – NMED Approval of Request for Extension to Submit the Sandia Canyon Investigation Report 30133 TA 03
November 26, 2008 – LANL Periodic Monitoring Report for Mortandad, Sandia, Pajarito & Ancho Canyons 30132 TA 03
November 26, 2008 – LANL Extension Request for Sandia Canyon IR 30131 TA 03
November 24, 2008 – LANL NOD Response of Periodic Monitoring Report for Sandia Watershed, November 7 – November 19, 2007 30130 TA 03
October 29, 2008 – NMED NOD: Periodic Monitoring Report for Sandia Watershed, November 7 – 19, 2007 30128 TA 03
September 30, 2008 – Los Alamos National Laboratory Update on the Chromium Project, August 2008, Los Alamos National Laboratory document LA-UR-08-5584, Los Alamos, New Mexico. (LANL 2008, 102910) 31195 General
September 26, 2008 – LANL Periodic Monitoring Reports for Mortandad, Sandia, Pajarito, Water & White Rock Canyons 30124 TA 03
September 26, 2008 – LANL Well Completion Summary Fact Sheets for SCI-2 (within R-43) 30125 TA 03
September 26, 2008 – LANL Well Completion Summary Fact Sheets for R-42 30151 TA 05
September 24, 2008 – LANL Email: Request to Omit Bentonite Grout from R-43 Annular Fill Material 31425 TA 03
August 12, 2008 – NMED Approval with Direction Upper Sandia Canyon Aggregate Area IWP 30120 TA 03
July 31, 2008 – LANL Periodic Monitoring Reports for Mortandad, Sandia, Pajarito & Los Alamos Canyons 30038 TA 00
July 31, 2008 – LANL Submittal: Fate and Transport Investigations Update for Chromium Contamination in Sandia Canyon 30119 TA 03
July 31, 2008 – LANL Reference 102411 Sikora, E. R., T. M. Johnson, and T. D. Bullen, 2008. “Microbial Mass-Dependent Fractionation of Chromium Isotopes,” Geochimica et Cosmochimica Acta, Vol. 72, pp. 3631-3641. (Sikora et al. 2008, 102411) 31126 General
July 31, 2008 – LANL Reference 102412 Izbicki, J. A., J. W. Ball, T. D. Bullen, and S. J. Sutley, 2008. “Chromium, Chromium Isotopes and Selected Trace Elements, Western Mojave Desert, USA,” Applied Geochemistry, Vol. 23, pp. 1325-1352. (Izbicki et al. 2008, 102412) 31127 General
July 31, 2008 – LANL Reference 102413 Schoenberg, R., S. Zink, M. Staubwasser, and F. von Blanckenburg, 2008. “The Stable Cr Isotope Inventory of Solid Earth Reservoirs Determined by Double Spike MC-ICP-MS,” Chemical Geology, Vol. 249, pp. 294-306. (Schoenberg et al. 2008, 102413) 31128 General
July 31, 2008 – LANL Reference 102459 Johnson, T., April 4, 2008. Re: Chromium isotope sample IDs. E-mail message to J. Heikoop (LANL) and J. Glessner from T. Johnson (University of Illinois), Urbana, Illinois. (Johnson 2008, 102459) 31129 General
July 31, 2008 – LANL Reference 102460 Johnson, T., June 17, 2008. Re: R-35a. E-mail message to J. Heikoop (LANL), J. Glessner, and P. Longmire (LANL) from T. Johnson (University of Illinois), Urbana, Illinois. (Johnson 2008, 102460) 31130 General
July 31, 2008 – LANL Reference 102461 Johnson, T., July 12, 2008. Re: need advice on report. E-mail message to J. Heikoop (LANL) and J. Glessner from T. Johnson (University of Illinois), Urbana, Illinois. (Johnson 2008, 102461) 31131 General
July 31, 2008 – LANL Reference 102462 Gouze, P., T. Le Borgne, R. Leprovost, G. Lods, T. Poidras, and P. Pezard, 2008. “Non-Fickian Dispersion in Porous Media: 1. Multicale Measurements Using Single-Well Injection Withdrawal Tracer Tests,” Water Resources Research, Vol. 44, W06426, 15 pp. (Gouze et al. 2008, 102462) 31132 General
July 31, 2008 – LANL Reference 102463 Le Borgne, T., and P. Gouze, 2008. “Non-Fickian Dispersion in Porous Media: 2. Model Validation from Measurements at Different Scales,” Water Resources Research, Vol. 44, W06427, 10 pp. (Le Borgne and Gouze 2008, 102463) 31133 General
July 31, 2008 – LANL Reference 102464 Johnson, T. M., and E. Berna, 2008. “Cr Isotopes Reveal Progress of Natural Reduction of Contaminant Cr(VI) in a Groundwater System,” Goldschmidt Conference Abstracts, p. A437. (Johnson and Berna 2008, 102464) 31134 General
July 31, 2008 – LANL Reference 102465 Gelhar, L.W., C. Welty, and K.R. Rehfeldt, July 1992. “A Critical Review of Data on Field-Scale Dispersion in Aquifers,” Water Resources Research, Vol. 28, No. 7, pp. 1955-1974. (Gelhar et al. 1992, 102465) 31135 General
July 31, 2008 – LANL Reference 102466 Miller, T. A., V. V. Vesselinov, P. H. Stauffer, K. H. Birdsell, and C. W. Gable, 2007. “Integration of Geologic Frameworks in Meshing and Setup of Computational Hydrogeologic Models, Pajarito Plateau, New Mexico,” New Mexico Geological Society Guidebook: 58th Field Conference, Geology of the Jemez Mountains Region II, pp. 121–128. (Miller et al. 2007, 102466) 31136 General
July 31, 2008 – LANL Reference 102495 Chao, T. T., 1972. “Selective Dissolution of Manganese Oxides from Soils and Sediments with Acidified Hydroxylamine Hydrochloride,” Soil Science Society of America Proceedings, Vol. 36, pp. 764-768. (Chao 1972, 102495) 31137 General
July 25, 2008 – LANL NOD Response for the IWP for Upper Sandia Canyon Aggregate Area and Revision 1 30118 TA 03
June 25, 2008 – NMED NOD: IWP for Upper Sandia Canyon Aggregate Area 30117 TA 03
May 8, 2008 – LANL Approval with Modification; Drilling WP for Nature and Extent of chromium Contamination in GW Investigations 30531 TA 54
April 30, 2008 – LANL Submittal: Drilling WP for Nature and Extent of Chromium Contamination in GW Investigations 30116 TA 03
March 31, 2008 – LANL IWP and the Historical IR for Upper Sandia Canyon Aggregate Area 30114 TA 03
March 18, 2008 – NMED Investigation of chromium Contamination in Regional GW 30146 TA 05
February 29, 2008 – LANL Periodic Monitoring Reports for Sandia, Mortandad, Los Alamos, White Rock & Pajarito Watersheds 30018 TA 00
2007
December 17, 2007 – NMED Approval with Direction WP for Geochemical Characterization and Drilling for Fate and Transport of contaminates Originating in Sandia Canyon 30923 General
November 19, 2007 – LANL WP for Geochemical Characterization and Drilling for Fate and Transport of contaminants Originating in Sandia Canyon 30096 TA 03
October 29, 2007 – NMED Notice of Approval Mortandad Canyon Groundwater Monitoring Well Network Evaluation, Revision 1
October 22, 2007 – LANL Periodic Monitoring Report for Sandia Watershed, February 13 – 25, 2007 & June 4 – 24, 2007 30091 TA 03
October 17, 2007 – NMED NOD; Fate and Transport Modeling Report for Chromium Contamination from Sandia Canyon 30090 TA 03
September 19, 2007 – LANL 098200 Bennett, K., D. Keller, and R. Robinson, 2001. “Sandia Wetland Evaluation,” Los Alamos National Laboratory document LA-UR-01-66, Los Alamos, New Mexico. (Bennett et al. 2001, 098200) 30810 General
September 14, 2007 – LANL Submittal: Fate & Transport Modeling Report for chromium Contamination from Sandia Canyon 30004 TA 00
September 14, 2007 – LANL Reference 098074 Bain, D. J., and T .D. Bullen, 2004. “Experimental Determination of Isotopic Fractionation of Chromium(III) During Oxidation by Manganese Oxides,” Eos Transactions, American Geophysical Union, Vol. 85, No. 47, Fall Meeting Supplement, Abstract H42C-03. (Bain and Bullen 2004, 098074) 30783 General
September 14, 2007 – LANL Reference 098081 Ellis, A. S., T. M. Johnson, and T. D. Bullen, March 15, 2002. “Chromium Isotopes and the Fate of Hexavalent Chromium in the Environment,” Science, Vol. 295, pp. 2060-2062. (Ellis et al. 2002, 098081) 30785 General
September 14, 2007 – LANL Reference 098086 Ellis, A. S., T. M. Johnson, and T. D. Bullen, 2004. “Using Chromium Stable Isotope Ratios to Quantify Cr(VI) Reduction: Lack of Sorption Effects,” Environmental Science & Technology, Vol. 38, No. 13, pp. 3604- 3607. (Ellis et al. 2004, 098086) 30786 General
September 14, 2007 – LANL Reference 098088 Kitchen, J. W., T. M. Johnson, and T. D. Bullen, 2004. “Chromium Stable Isotope Fractionation During Abiotic Reduction of Hexavalent Chromium,” Eos Transactions, American Geophysical Union, Vol. 85, No. 47, Fall Meeting Supplement, Abstract V51A-0519 (Kitchen et al. 2004, 098088) 30788 General
September 14, 2007 – LANL Reference 098101 Sikora, E. R., T. M. Johnson, and T. D. Bullen, 2004. “Chromium Stable Isotope Fractionation During Bacterial Reduction of Hexavalent Chromium,” Eos Transactions, American Geophysical Union, Vol. 85, No. 17, Joint Assembly Supplement, Abstract H43E-05. (Sikora et al. 2004, 098101) 30789 General
August 31, 2007 – LANL Reference 097256 EPA (U. S. Environmental Protection Agency), October 2000. “In Situ Treatment of Soil and Groundwater Contaminated with Chromium,” Technical Resource Guide, EPA/625/R-00/005, Office of Research and Development, Washington, D. C. (EPA 2000, 097256) 30747 General
August 6, 2007 – NMED Approval with Direction Mortandad Canyon Groundwater Monitoring Network Evaluation
June 15, 2007 – NMED Press Release; Environment Dept. Reaches $251,870 Settlement with LANL on Failure to Report Chromium Contamination in GW 14776 TA 05
June 14, 2007 – NMED Settlement Agreement – Notice of Violation dated October 25, 2006
April 6, 2007 – LANL Reference 95189, Oral communication Record between Dr. tom Johnson and Jeff Heikoop Regarding Chromium Isotopes 14655 General
March 5, 2007 – NMED Approval with Direction for the Addendum to the Work Plan for Sandia Canyon and Canada del Buey 2864 TA 05
February 20, 2007 – LANL 094042 Kleinfelder, February 9, 2005. “Revision 1, Well R-28 Completion Report,” report prepared for Los Alamos National Laboratory, Project No. 37151/16.12, Albuquerque, New Mexico. (Kleinfelder 2005, 094042) 14597 General
2006
December 27, 2006 – NMED Notice of Approval for the Interim Measures Investigation Report for Chromium Contamination in Groundwater 2862 TA 05
November 30, 2006 – LANL Submittal: Interim Measures IR for Chromium Contamination in GW 2861 TA 05
November 30, 2006 – LANL Reference 91684 Raj, D., and J. M. Zachara, May 1986.” Geochemical Behavior of Chromium Species,” Electric Power Research Institute. (Rai and Zachara 1986, 91684) 14466 General
November 1, 2006 – LANL Email: Proposed Fix for Cr IM Well SCI-1/SCC-1 (2) 5833 TA 03
November 1, 2006 – LANL Email: Proposed Fix for Cr IM Well SCI-1/SCC-1 5832 TA 03
September 23, 2006 – Fax: Notice of Violation; Chromium contamination at R-28 2860 TA 05
September 18, 2006 – LANL Email: Chromium Field Campaign Update – 9/15 2859 TA 05
September 9, 2006 – NMED Notice of Violation 2858 TA 05
September 9, 2006 – NMED Press Release: Environment Dept. Proposes $795,000 Penalty for Chromium Contamination 2857 TA 05
August 28, 2006 – LANL Response to the Approval with Modifications Letter, Dated May 8, 2006, for the Interim Measures WP for Chromium Contamination in GW 2856 TA 05
July 19, 2006 – LANL Email: 15-Day Notification of Field Activities – Drilling in Sandia for Cr IM WP 5824 TA 03
July 21, 2006 – NMED Response to Request for the Use of EPA Method 6020 for Analysis of Filtered Total Chromium as a Substitute for US EPA Method 7199 for Hexavalent Chromium 14188 General
June 28, 2006 – LANL Request for the Use of EPA Method 6020 for Analysis of Filtered Total Chromium as a Substitute for Using EPA Method 7199 for Hexavalent Chromium 14168 General
June 14, 2006 – LANL Email: Response to Request Regarding the Total Cr vs. Hexavalent Cr Sampling, IM WP 2852 TA 05
May 19, 2006 – LANL Response to HWB’s Information Request for analytical Reports and Correspondence Pertaining to Regional Aquifer Well R-28 2850 TA 05
May 12, 2006 – NMED Press Release: Environment Dept. Approves LANL WP to Investigate Chromium Contaminated GW 2849 TA 05
May 5, 2006 – Approval with Modifications for the IM WP for Chromium Contamination in GW 2848 TA 05
May 2, 2006 – NMED Request for Analytical Lab Reports and All Correspondence submitted to NMED Pertaining to Regional Aquifer Well R-28 2847 TA 05
March 31, 2006 – Submittal of Interim Measures WP for Chromium Contamination in Groundwater 2846 TA 05
2005
December 29, 2005 – NMED Interim Measures WP Requirement GW Contaminants Detected in the Regional Aquifer at R-28 2845 TA 05
2004
December 23, 2004 – LANL Sampling Notification for Wells R-14, R-1, R-2, R-4, R-26, R-28, R-34, CdV-R-15-3, CdV-R-37-2 and CdV-R-16- 1(i) 7707 TA 00
May 3, 2004 – LANL Completion Report for Characterization Well R-28 2844 TA 05
April 23, 2004 – LANL Management of Drill Cuttings from Wells R-1, R-28, CdV-16-1, CdV-16-2 and CdV-16-3 2843 TA 05
March 2, 2004 – LANL Fact Sheet for R-28 2841 TA 05
2003
November 13, 2003 – LANL SAP for Drilling and Testing Characterization Wells R-1, R-28, R-33 & R-34 3278 TA 01
