Exhibit_D_Appendix_D-10_TA-21_PRS_Status.pdf

Unit # SWMU/ AOC Cons. Order

Ref# PRS Campaign Designation Short Description Primary Sector Location

Prep Required

Under Preparation

Awaiting

NMED

Approval

NMED

Approved /

Await Execution

IWP Imple‐ mentation In‐Progress

Executed NOTES Work Plan Ref. NMED Approval Letter Ref.

Prep

Required

Under Preparatio n

Awaiting

NMED

Approval

NMED

Approved

Notes Investigation Report Ref. NMED Approval Letter Ref.

1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4

21‐001 AOC 889 Campaign ‐ "H" MDA ‐ A and T Remedy

Container Storage Area Sector 4 ‐ DP Middle Mesa Top

X

NMED comments incorporated. Moving forward with field execution.

L3 & I1 L3 ‐ DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, September 30, 2014, EP2014‐0427, ERID‐261899

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

Disapproved ‐ NL3 ‐ Disapproval DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, October 27, 2015, ESHID‐600972, U1600193

X

1 21‐010(a) SWMU 904 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination associated with former Waste treatment facility 21‐35

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(b) SWMU 905 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former manhole

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(c) SWMU 906 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Underground Tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(d) SWMU 907 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Underground Tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(e) SWMU 908 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Septic Tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(f) SWMU 909 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Grit Chamber

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(g) SWMU 910 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Aboveground Tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐010(h) SWMU 911 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former Manhole MDAs‐A & ‐T Rem

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(a) SWMU 912 Campaign ‐ "H" MDA ‐ A and T Remedy

Waste Treatment Facility 21‐257

NOTE: SWMU is Bldg.

Footprint

Sector 4 ‐ DP Middle Mesa Top

X

NMED comments incorporated. Moving forward with field execution.

L3 & I1 L3 ‐ DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, EP2014‐0427, ERID‐261899

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

Disapproved ‐ NL3 ‐ Disapproval DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, October 27, 2015, ESHID‐600972, U1600193

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

SWMU / AOC Information Investigation Work Plan Investigation Report

1 of 3 10/15/2018

Ref# PRS Campaign Designation Short Description Primary Sector Location

Prep Required

Under Preparation

Awaiting

NMED

Approval

NMED

Approved /

Await Execution

IWP Imple‐ mentation In‐Progress

Executed NOTES Work Plan Ref. NMED Approval Letter Ref.

Prep

Required

Under Preparatio n

Awaiting

NMED

Approval

NMED

Approved

Notes Investigation Report Ref. NMED Approval Letter Ref.

1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4

21‐011(b) SWMU 913A Campaign ‐ "B" Historical Properties ‐ Middle LA Cyn

Sump NOTE: Includes balance of 21‐011(b) sample locations.

Sector 2 ‐ DP East Building Area

X

Per D3, a new Letter WP is needed.

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory (LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

D3 ‐ LANL, Investigation Report for DP Site Aggregate Area Sites at DP East, June

2018, EM2018‐0007

21‐011(d) SWMU 915 Campaign ‐ "H" MDA ‐ A and T Remedy

Holding Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(e) SWMU 916 Campaign ‐ "H" MDA ‐ A and T Remedy

Holding Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(f) SWMU 917 Campaign ‐ "H" MDA ‐ A and T Remedy

Holding Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(g) SWMU 918 Campaign ‐ "H" MDA ‐ A and T Remedy

Holding Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(h) AOC 919 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination from former storage tank

Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(i) SWMU 920 Campaign ‐ "H" MDA ‐ A and T Remedy

Storage Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐011(j) SWMU 921 Campaign ‐ "H" MDA ‐ A and T Remedy

Storage Tank Sector 4 ‐ DP Middle Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

21‐022(b) SWMU 943 Campaign ‐ "B" Historical Properties ‐ Middle LA Cyn

Soil contamination from former Sump and Waste line

Sector 1 ‐ DP West Building Area

X

L2 & I1 ;

L2 ‐ LANL, Submittal Delta Prime West Building Footprints Letter Work Plan, 1/14/11, LA‐UR‐11‐0127, EP2011‐0005.

I1 ‐ LANL, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

AL2 & A3

AL2 ‐ NMED, Approval with Modifications DP West Building 21‐002 Footprint Letter Work Plan Los Alamos National Laboratory (LANL) EPA ID #NM890010515, HWB‐LANL‐11‐002, March 9, 2011

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

21‐022(c) SWMU 944 Campaign ‐ "B" Historical Properties ‐ Middle LA Cyn

Soil contamination from former Sump and Waste line

Sector 1 ‐ DP West Building Area

X

L2 & I1 ;

L2 ‐ LANL, Submittal Delta Prime West Building Footprints Letter Work Plan, 1/14/11, LA‐UR‐11‐0127, EP2011‐0005.

I1 ‐ LANL, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

AL2 & A3

AL2 ‐ NMED, Approval with Modifications DP West Building 21‐002 Footprint Letter Work Plan Los Alamos National Laboratory (LANL) EPA ID #NM890010515, HWB‐LANL‐11‐002, March 9, 2011

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

2 of 3 10/15/2018

Ref# PRS Campaign Designation Short Description Primary Sector Location

Prep Required

Under Preparation

Awaiting

NMED

Approval

NMED

Approved /

Await Execution

IWP Imple‐ mentation In‐Progress

Executed NOTES Work Plan Ref. NMED Approval Letter Ref.

Prep

Required

Under Preparatio n

Awaiting

NMED

Approval

NMED

Approved

Notes Investigation Report Ref. NMED Approval Letter Ref.

1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4

21‐022(d) SWMU 945 Campaign ‐ "B" Historical Properties ‐ Middle LA Cyn

Soil contamination from former Sump and Waste line

Sector 1 ‐ DP West Building Area

X

L2 & I1 ;

L2 ‐ LANL, Submittal Delta Prime West Building Footprints Letter Work Plan, 1/14/11, LA‐UR‐11‐0127, EP2011‐0005.

I1 ‐ LANL, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

AL2 & A3

AL2 ‐ NMED, Approval with Modifications DP West Building 21‐002 Footprint Letter Work Plan Los Alamos National Laboratory (LANL) EPA ID #NM890010515, HWB‐LANL‐11‐002, March 9, 2011

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

21‐022(g) SWMU 948 Campaign ‐ "B" Historical Properties ‐ Middle LA Cyn

Soil contamination from former Sump and Waste line

Sector 1 ‐ DP West Building Area

X

L2 & I1 ;

L2 ‐ LANL, Submittal Delta Prime West Building Footprints Letter Work Plan, 1/14/11, LA‐UR‐11‐0127, EP2011‐0005.

I1 ‐ LANL, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

AL2 & A3

AL2 ‐ NMED, Approval with Modifications DP West Building 21‐002 Footprint Letter Work Plan Los Alamos National Laboratory (LANL) EPA ID #NM890010515, HWB‐LANL‐11‐002, March 9, 2011

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

C‐21‐005 AOC 982 Campaign ‐ "E" TA‐21 D&D and Cleanup

Spill/Non‐intentional release area

Sector 4 ‐ DP Middle Mesa Top

X

NMED comments incorporated. Moving forward with field execution.

L3 & I1 L3 ‐ DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, EP2014‐0427, ERID‐261899

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

Disapproved ‐ NL3 ‐ Disapproval DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, October 27, 2015, ESHID‐600972, U1600193

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

C‐21‐007 AOC 984 Campaign ‐ "E" TA‐21 D&D and Cleanup

Spill/Non‐intentional release area

Sector 4 ‐ DP Middle Mesa Top

X

NMED comments incorporated. Moving forward with field execution.

L3 & I1;

L3 ‐ LANL, DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, September 29, 2014, EP2014‐

0427, ERID‐261899

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

Disapproved ‐ NL3 ‐ Disapproval DP Site Aggregate Area Building 21‐257 Footprint Letter Work Plan, October 27, 2015, ESHID‐600972, U1600193

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

C‐21‐034 AOC 989 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination associated with former Tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

C‐21‐035 AOC 990 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination associated with former Aboveground tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

C‐21‐036 AOC 991 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination associated with former Aboveground tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

C‐21‐037 AOC 992 Campaign ‐ "H" MDA ‐ A and T Remedy

Soil contamination associated with former Aboveground tank

Sector 3 ‐ DP West Mesa Top

X

I1 ‐ Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1, December

2009, LA‐UR‐09‐8180, EP2009‐0660

A3 ‐ NMED, Approval, Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites at Technical Area 21 Los Alamos National Laboratory

(LANL), EPA ID #NM890010515, HWB‐LANL‐09‐054, U1000074

X

NMED specified additional action.

Execution of latest work plan will yield more current information.

IR stated ‐ "Nature and Nature and extent of pore gas will be comprehensively evaluated and presented in a report following completion of planned vapor‐ monitoring activities."

T12.1 ‐ Phase II Investigation Report for Material Disposal Area (MDA) T at Technical Area (TA) 21, Revision 1.0), February 2008, LA‐UR‐08‐1215 /

EP2000102

T15 ‐ NMED, Approval with Modifications Phase II Investigation Report, Material Disposal Area (MDA) T, at Technical Area (TA) 21, Revision 1.0, EPA ID # NM0890015015, HWB‐LANL‐08‐005, March 28, 2008

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