Exhibit_D.pdf

Exhibit D SOW Rev 0 October 22, 2018

EXHIBIT "D"

STATEMENT OF WORK AND TECHNICAL SPECIFICATIONS

TA-21 Delta Prime Site Aggregate Area

Delayed Sites Project

1.0 PROJECT SCOPE OF WORK / BACKGROUND, GOALS AND OBJECTIVES

This statement of work (SOW) establishes the scope for the SUBCONTRACTOR responsible for providing the technical functions, innovative methods and expertise necessary for the effective and timely delivery of products to the CONTRACTOR, Newport News Nuclear BWXT Los Alamos, LLC. (N3B).

SUBCONTRACTOR must have in place the required and functioning management, technical and administrative infrastructure to complete all objectives and provide successful coordination with N3B personnel. SUBCONTRACTOR shall perform all work requirements in accordance with the subcontract documents, New Mexico Environment Department (NMED), and U.S. Department of Energy (DOE) policies and directives as specified herein.

In the performance of this SOW, SUBCONTRACTOR shall comply with all applicable laws, DOE orders, CONTRACTOR performance requirements, CONTRACTOR implementation requirements, N3B requirements, the State of New Mexico Environmental Department Compliance Order on Consent (hereafter, the Consent Order), CONTRACTOR Conduct of Operations, quality requirements as stated in Exhibit H, safety requirements in Exhibit F, the integrated work document/management process and requirements as specified herein.

SUBCONTRACTOR shall furnish qualified management, personnel, equipment, materials, supplies and facilities to perform, as detailed in this Exhibit “D”, all work necessary to execute this statement of work as required by or reasonably inferable from the Subcontract documents. The underlying goal, is to complete Deactivation & Decommissioning (D&D) activities at Technical Area 21 (TA-21), including abatement of hazardous materials, completion of site characterization, sampling, reporting and remediation of remaining facilities, structures, industrial waste lines and removal of contaminated soils. The overall broad site disposition will contribute to the complete removal of legacy infrastructure and contaminants within the designated TA-21 site boundary for the Los Alamos County Land Transfer Agreement.

The work package comprised of this procurement includes, but is not limited to; Characterization, D&D, universal waste removal, asbestos and hazardous materials abatement, decontamination, demolition, size reduction, segregating, loading and packaging building 21-0257 Radiological Liquid Waste Treatment Facility, as well as the supporting influent/effluent above ground contaminated storage tanks: structures TA-21-110, 21-111, 21-112, 21-113, 21-288 and 21-289; The SUBCONTRACTOR will also be required to locate, excavate, remove, size reduce, package and load the DP West radiological industrial waste lines (~ 5,900 LF); perform investigative soils characterization, sampling, excavation, remediation, packaging, loading, staging of contaminated soils and site restoration; investigation/remediation of Solid Waste Management Units (SWMU’s) and Areas of Concern (AOC’s) and investigation report development/approval as instructed in the Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1 and DP Site Aggregate Area Building 21-257 Footprint Letter Work Plans. In addition to executing these Work Plans, SUBCONTRACTOR shall perform any nature and extent sampling, soil and structure remediation, waste characterization and packaging, human health and ecological risk assessments and Investigation Report development necessary to meet Consent Order requirements.

Activities to support on-going work includes demarcating and establishing work area boundaries, storm water pollution prevention controls utilization and final site stabilization. SUBCONTRACTOR shall not be relieved of performing the details of any work, manifestly or customarily performed to carry out the intent of this subcontract. All work shall be performed fully and correctly as set forth and described in the subcontract which is outlined in detail in section 1.1 “Work Scope” and Appendices; D-1 Photos, D-2 Drawings, D-3 Characterization/Survey Reports, D-4 GIS Utility & Infrastructure Maps, D-5 Storm Water Pollution Prevention Plan (SWPPP), D-6 Waste Characterization Strategy Form, D-7 Training Requirements Matrix, D-8 Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1 and DP Site Aggregate Area Building 21-257 Footprint Letter Work Plans, D-9 Waste Control Specialists (WCS) “Waste Acceptance Criteria“(WAC), D-10 AOC and SWMU Identification Matrix, D-11 N3B - DIR Standard Operating Procedures, D-12 New Mexico Environmental Departments Compliance Order of Consent, D-13 Supplemental Investigation Report for Threemile Canyon Aggregate Area, Revision 1, July 2018 Reporting Template/Example, D-14 Request for Information (RFI) form and D-15 Subcontractor Deviation Disposition Request form, D-16 Excavation Identification (EXID) Permit and D-17 Assessment Guidance for Site Investigations and Remediation (02/2012, updated 06/2012) and D-18 Earth Moving Specification listed in this document.

BACKGROUND - TA-21 and 21-257

TA-21 is located on DP Mesa on the northern boundary of the Los Alamos National Laboratory and is immediately east-southeast of the Los Alamos town site. DP West operations began in September of 1945, primarily to produce metal and alloys of plutonium from the nitrate solution feedstock provided by other production facilities, as well as nuclear fuel reprocessing. This procedure involved several acid dissolution and chemical precipitation steps to separate the plutonium and other valuable actinides from the feedstock.

Building TA-21-257 constructed in 1966, was the TA-21 radiological liquid waste treatment facility designed to treat liquid waste from DP Site operations (DP West and DP East buildings) and prepare the waste for disposal. Building 21-257 is approximately 4,000 ft² with a rectangular foundation footprint consisting of reinforced concrete slab, stem walls and footings. General construction is reinforced concrete and CMU walls with a built-up roof containing bituminous roofing materials, tar and gravel. A membrane was used as a roof patch in 2014. Building 21-257 includes thirteen numbered rooms and a raw waste storage area north of Room 105. A complete description of each room and its function is included in DP Site Aggregate Area Building 21-0257 Footprint Letter Work Plan. Some areas of particular interest include rooms 104, 105, 106, and 108. Area/room 104 was the batch waste process area where two of the influent batch waste storage tanks and chemical feeders to the batch waste treatment area (Area 106) were located. Area/room 105 was the process area containing the flash mixer, flocculator, sludge collector, settling tank, filter sump pressure filter, sludge storage and an influent batch waste storage tank. This area is located below floor grade.

The sump floor varies between 10 ft. and 19 ft. below the first floor. North of Area/room 105 was the raw waste storage area and consists of two side-by-side 29,000-gallon concrete raw influent storage tanks.

The tanks are 17 ft. deep along the inner walls and 19ft from the top to bottom of the walls along the exterior and each is approximately 14 ft. below grade surface. Area/room 106 was the batch waste treatment area and room 108 was used as an analytical laboratory for the treated effluent waste. Building 21-257 was still active and maintained operation until 2006 when it was placed in inactive standby status. Currently the building is “cold and dark”. The following is a list of key structures associated with Building 21-257:

Structure Square Feet/LF/Gal.

Year Acquired

Property Name

TA-21-0257 4,000 ft² 1966 Radiological Liquid Waste Treatment Facility

TA-21-0110 13,500 gal. 1966 Influent Tank Storage passageway)

TA-21-0111 13,500 gal. 1966 Influent Tank Storage

TA-21-0112 12,700 gal. 1967 Effluent Tank Storage

TA-21-0113 12,700 gal. 1967 Effluent Tank Storage

TA-21-0288 1,000 gal. 1966 Chemical Treatment Tank Storage

TA-21-0289 1,600 gal. 1966 Chemical Treatment Tank Storage

TA-21- Tank 1 500 gal. 1968 500-gallon Steel Tank

TA-21 Tank 2 350 gal. 2003 350-gallon Poly Tank

TA-21 RLW Lines 5,900 LF 1948 Radiological Liquid Waste Lines

BASE SCOPE

1.1 Work Included

1.1.1 SUBCONTRACTOR shall, prior to any intrusive activities (e.g. penetrations, characterization sampling, universal waste removal, demolition) verify the facility (TA-21-257 and associated structures) is “cold & dark” and free of all sources of stored energy (e.g. electrical, gas, pressurized tanks/lines, water, sanitary sewer etc.). SUBCONTRACTOR shall verify with licensed personnel electrical disconnects to include zero-voltage verification of all conduits entering or exiting the facility. All air-gaps and zero-voltage verifications shall be documented and submitted to the Subcontractor Technical Representative (STR) prior to further D&D activities.

1.1.2 SUBCONTRACTOR shall be responsible for sampling, prior to the start of any field activities and throughout the project, as necessary, for occupational worker safety and health, Industrial Hygiene (IH) and worker protection per Exhibit F and for waste characterization in accordance with the approved project specific Sample and Analysis Plan. SUBCONTRACTOR shall characterize, in accordance with an acceptable, documented EPA method (e.g. EPA SW 846) building 21-257 and associated equipment, including but not limited to; pumps, radiological liquid waste lines, systems, poly-tanks, interior and exterior tanks (21-110, 21-111, 21-112, 21-113, 288, 289), concrete raw waste storage areas and hoods. Characterization shall be complete and represent all wastes to be generated. (see Exhibit F and appendix D-6 WCSF)

1.1.3 SUBCONTRACTOR shall identify, characterize, remove, segregate, load and package prior to demolition/removal ALL universal waste from TA-21-257, 21- 110, 21-111, 21-112, 21-113, 21-288 and 21-289 (e.g. mercury switches, fluorescent bulbs, halogen/incandescent bulbs, batteries, circuit boards, PCB and Non-PCB Ballasts) into CONTRACTOR provided containers in accordance with the Waste Characterization Strategy Form (WCSF). (see appendix D-6 WCSF)

1.1.4 SUBCONTRACTOR shall perform asbestos and hazardous materials characterization and abatement per applicable regulations prior to demolition of the structures. SUBCONTRACTOR shall remove, load and package hazardous materials into CONTRACTOR supplied containers. (see appendix D-3 Survey Reports and Exhibit F)

1.1.5 SUBCONTRACTOR shall remediate oils, liquids and sludge from tanks, piping systems, pumps, compressors, motors, transformers or generators located at 21- 257 prior to demolition. All liquids removed from equipment shall be placed in CONTRACTOR provided containers, on adequate SUBCONTRACTOR supplied secondary containment controls to eliminate environmental impacts. In the event liquids cannot be drained directly into the waste container, extreme care using spill containment methods and alternate secondary containments shall be used (e.g. small oil catch basins, absorbent pigs/pillows, blankets, etc.)

SUBCONTRACTOR supplied absorbent shall be used for any residual liquids after remediation. (see Exhibit C Form A2.5)

1.1.6 SUBCONTRACTOR shall characterize, remove, size reduce, load and package in CONTRACTOR provided containers all accessible, contaminated or highly contaminated radiological items in the interior and associated raw waste storage area of building 21-257. This will include but is not limited to; radiological liquid waste lines, pug mill, drum tumblers, chemical feeders, batch waste tanks, sumps, pumps, plenums, HVAC systems, hoods, filters, roof exhausts, pipes, conduit, compressors and miscellaneous removable items prior to structural demolition. (see appendix D-1 Photos)

1.1.7 SUBCONTRACTOR shall apply InstaCote™ CC Wet and CC Fix, per manufacturer’s instructions, radiological fixative throughout the entire interior and raw waste storage area of 21-257 prior to structural demolition.

1.1.8 SUBCONTRACTOR shall deactivate, decommission, demolish, raze, size reduce (in accordance with the Waste Acceptance Criteria), segregate (by waste stream), load and package into CONTRACTOR provided containers building 21- 257 and all associated asphalt, slabs, stem walls, footers, columns, appurtenances, utilities (5 feet from the building and cap/seal), RLW lines, stairwells, stoops, decks, docks, sidewalks and fencing.

1.1.9 SUBCONTRACTOR shall D&D, decontaminate, solidify/encapsulate, remove, raze, size reduce (if necessary and in accordance with the Waste Acceptance Criteria), segregate (by waste stream), load and package into CONTRACTOR provided containers, all above ground and below ground tanks associated with 21-257. This includes, but not limited to; radiological storage tanks 21-110, 21- 111, 21-112, 21-113, 21-288 and 21-289, poly tanks (including those on NE corner outside perimeter fence), steel tank and reinforced concrete pit (21-204) measuring 7’x8’x6’ deep. If SUBCONTRACTOR elects to size reduce these items, InstaCote™ CC Fixative shall be applied per manufacturer’s instructions.

1.1.10 SUBCONTRACTOR will excavate, stabilize, size reduce, remove, load and package into CONTRACTOR furnished containers approximately 5,900 linear feet of industrial waste lines. (see appendices D-4 GIS Utility & Infrastructure Maps and D-8 Work Plans)

1.1.10.1 SUBCONTRACTOR shall stabilize the sections of pipe to be cut with InstaCote Autopour™ to reduce contamination risk while size reducing.

SUBCONTRACTOR shall inspect and verify no free liquids exist. Liquids encountered in the pipes shall be captured, removed and containerized.

SUBCONTRACTOR will include verification and draining method in their proposed work plans.

1.1.10.2 All industrial waste lines will be stabilized and removed up to, but not to exceed the delineated 5 ft. buffer zone indicated on the applicable map for the Nuclear Environmental Site (NES) and near DP West slabs. (see appendices D-4 GIS Utility & Infrastructure Maps and D-8 Work Plans)

1.1.10.3 SUBCONTRACTOR will encounter intersecting utility lines throughout the removal of the industrial lines. SUBCONTRACTOR shall cut, load and package the utility line to perform work to the extent of the excavation or as needed to perform industrial pipe removal. The exposed utility pipe remaining shall be foam filled or capped to prevent foreign debris from entering the pipe. SUBCONTRACTOR shall notify STR to perform utility surveys for these locations. (see appendices D-4 GIS Utility & Infrastructure Maps)

1.1.11 SUBCONTRACTOR shall, in accordance with N3B Standard Operating Procedures (SOP’s), NMED Consent Order, “Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1”, and “DP Site Aggregate Area Building 21-257 Footprint Letter Work Plan”; locate, sample, characterize, record (GPS) and log specified sample locations set forth in these work plans.

SUBCONTRACTOR shall schedule work based on standard turn-around times for the analysis required. (see appendices D-8 Work Plans and Section 1.1.11.1, referencing “Delta Prime Site Aggregate Area Delayed Sites, Revision 1”, and Section 1.1.11.2 referencing “DP Site Aggregate Area Building 21-257 Footprint letter Work Plan” of this statement of work. Sections 1.1.11.1, and

1.1.11.2 take order of precedence over work plans for the following changes/updates/omissions)

1.1.11.1 SUBCONTRACTOR shall follow, adhere to and document to the

Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1 work plan with the following clarifications, omissions and/or additions;

1.1.11.1.1 Omit Sections 4.0 and Table 4.2-1 in their entirety.

1.1.11.1.2 Omit sample locations at the East end of SWMU 21-011(b) beginning with sample point 1 up to and including sample point 29 on Figure 4.1.1.

1.1.11.1.3 Include sample locations at the West end of SWMU 21- 011(b) beginning with sample point 30 up to and including sample point 43 on Figure 4.1.1. Include sample point 139 on Figure 6.1-1.

1.1.11.1.4 Omit AOC’s C-21-002, C-21-010 and C-21-028(a) from Section 7.2 and Figure 7.2-1.

1.1.11.1.5 Omit sample locations at DP West Slabs Consolidated Unit 21-022(b)-99 beginning with sample point 58 up to and including sample point 138 on Figure 6.1.1.

1.1.11.1.6 Include sample location 139 on Figure 6.1.1.

1.1.11.1.7 SUBCONTRACTOR shall excavate to a maximum of 15 ft.

below grade surface (bgs). investigation to verify structure removal referenced in Section 7.2.3. If items thought to be previously removed are found, the SUBCONTRACTOR shall notify the STR and adhere to the work plans direction under Section 7.2.3 and 1.1.11.1.8. below;

1.1.11.1.8 SUBCONTRACTOR shall remove, stabilize, size reduce, load, package and back-fill void spaces the following items (see Exhibit C Form A 2.11 –- 2.14);

1.1.11.1.8.1 200 linear ft. of 4-inch diameter industrial waste lines 5 ft. bgs.;

1.1.11.1.8.2 Three (3) concrete manholes 1 ft. bgs. (manholes are 8-inch-thick concrete, 5 ft. in diameter and 6 ft.

high. manhole stack is 4-inch-thick concrete, 4 ft. in diameter and 3 ft. high.);

1.1.11.1.8.3 Two (2) 500-gallon underground steel tanks, 6 ft.

bgs.; one (1) 390-gallon Septic Tank, 6 ft. bgs.;

1.1.11.1.8.4 One (1) 50 ft. long, 2 ft. wide and 1ft.10-inches-deep leach field, 1 ft. 4 inches bgs., and

1.1.11.1.8.5 One (1) 6-inch-thick concrete grit chamber 8 ft. long, 3 ft. wide, 7 ft high and 6 ft. bgs.

1.1.11.1.9 SUBCONTRACTOR shall adhere to the sampling depths

(vertical and lateral) in Tables 6.2-1, 7.2-1 and 7.3-1. Soils displaying elevated SSL’s/SAL’s, VOC’s, or radiological levels above background during field activities shall be placed in CONTRACTOR supplied containers and sampling depths shall be adjusted accordingly and documented. If further depths are required to achieve the work plan’s scope of activities and those referenced in sections 6.2.3 and 7.3.3, as well as “Nature and Extent” for Industrial and Construction SSL’s and SAL’s, notify the STR.

1.1.11.2 SUBCONTRACTOR shall adhere to and document to the DP Site Aggregate Area Building 21-257 Footprint Letter Work Plan.

1.1.11.2.1 SUBCONTRACTOR shall adhere to the sampling depths

(vertical and lateral) in Table 2.3.1. Soils displaying elevated SSL’s/SAL’s, VOC’s, or radiological levels above background during field activities shall be placed in CONTRACTOR supplied containers and sampling depths shall be adjusted accordingly and documented. If further depths are required to achieve the work plan’s scope of activities and those referenced section 2.3, as well as “Nature and Extent” for Industrial and Construction SSL’s and SAL’s, notify the STR.

1.1.11.2.2 SUBCONTRACTOR shall adhere to Delta Prime Site

Aggregate Area Delayed Sites, Revision 1, sections 8.0 “Investigation Methods” through section 8.12 and Tables 8.0- 1 and 8.0-2 when working to the DP Site Aggregate Area Building 21-257 Footprint Letter Work Plan.

1.1.12 SUBCONTRACTOR shall remove, size reduce, load and package all asphalt and/or concrete to perform sampling, demolition and/or Industrial waste line removal activities. Material shall be loaded and packaged in lined CONTRACTOR provided bins.

1.1.13 Upon receipt of the sampling analysis data, SUBCONTRACTOR shall remediate, load and package, into CONTRACTOR supplied containers, ALL contaminated soils (at or above SSL’s and SAL’s). Sampling and remediation shall continue to 10 ft. bgs.

1.1.14 All soil and tuff, removed from within/adjacent to (e.g., from benching and/or sloping to stabilize a trench) or below excavated material, shall be placed in piles of no more than ~100 yd³. Overburden shall be separated from under-burden from those objects to be removed and sampled accordingly. Representative composite samples shall be taken every 50 yd³ and the location demarcated for segregation for disposal if necessary. If the soil and tuff are determined to be suitable for reuse (i.e., is not hazardous waste and meets residential soil screening levels [SSLs] and screening action levels [SALs]), the evacuated environmental media will be segregated from man-made debris, and the soil will be used to backfill the excavations. If the media does not meet residential SSLs/SALs, or are determined to be a hazardous waste, the excavated media will be containerized at the point of generation and stored in a secure, designated waste staging area. Man-made debris that may be present in the excavated material waste stream must be reported for the off-site profile.

SUBCONTRACTOR to assume 75% of soils can be returned as fill. (see D-6 WCSF waste stream #3, see table 2.3-1 and 2.3-2, or latest version of “Residential” SSL’s and SAL’s referenced in the IWP for DP Site Aggregate Area Delayed Sites, Rev 1)

1.1.15 SUBCONTRACTOR shall maintain sample custody and provide transportation of the samples to the N3B Sample Management Office (SMO).

1.1.16 SUBCONTRACTOR shall be responsible for Organic Vapor Field Screening to determine additional sample(s) collection. (see section 8.7.2 of the Delta Prime Site Aggregate Area Delayed Sites, Revision 1 work plan)

1.1.17 ALL TA-21 Site Aggregate Area sampling and remediation will be to “Industrial” and “Construction” scenario levels in Table 2.3-1 referenced in the Delta Prime Site Aggregate Area Delayed Sites, Revision 1 or latest version. Over and Under-burden will be to “Residential” scenario levels. (Screening Level category for SSL’s and SAL’s)

1.1.18 SUBCONTRACTOR shall be responsible for installing CONTRACTOR provided liners. SUBCONTRACTOR shall provide and place adequate absorbent for all containers, as well as provide intra-site transportation (after initial mobilization provided by CONTRACTOR) to include bin pick-up, staging, weighing (pre-and post-loading) on CONTRACTOR provided scale and relocating to CONTRACTOR designated waste staging area.

1.1.19 SUBCONTRACTOR shall, in accordance with the Exhibit F, provide all Personal Protective Equipment (PPE) to perform this statement of work (e.g. hard hats, safety glasses, protective footwear, high visibility vest/clothing, gloves, Tyvek, respirators, Level II, radiological PPE, etc.).

1.2 Technical and Investigative Reporting

1.2.1 Prepare an Investigation Report (IR) for all Consent Order work defined in this statement of work, in accordance with the June 2016 Compliance Order on Consent and NMED Risk Assessment Guidance for Site Investigations and Remediation (March 2017 or latest version). SUBCONTRACTOR shall use appendix D-13 “Supplemental Investigation Report for Threemile Canyon Aggregate Area, Revision 1, July 2018” as an IR template. The IR should be prepared in the same manner, text and format as the Threemile SIR;

1.2.1.1 SUBCONTRACTOR scope is not complete until the IR is approved by N3B, DOE and New Mexico Environmental Department (NMED).

Additional re-work (e.g. sampling or remediation work) if necessary, is SUBCONTRACTORS responsibility to complete in order to obtain N3B, DOE, and NMED IR approval.

1.2.2 Prepare and present a data decision peer review, including a draft data/action summary report for each SWMU/AOC. The summary report shall include a list of sites included in the IR, questions/problems, proposed decisions, and recommendations for each SWMU/AOC. Revised summary analytical data tables, revised Excel data files, and revised maps (figures and plates) for sites included in the IR with correct sampling locations and data will also be included.

The data decision peer review must be completed at least 30 calendar days before the 95% peer review draft is submitted.

1.2.3 Analyze sampling data, incorporate field-operations data, prepare tables, plates, and figures as appropriate, prepare appendices as appropriate, present the Chemical of Potential Concern (COPC) identification, nature and extent determination.

1.2.4 Prepare and submit a 95% draft to the Subcontractor Technical Representative (STR) based on the milestone dates identified in Exhibit I. The 95% draft shall include the main text, identify COPCs and determine nature and extent of contamination based on existing sampling data, incorporate field operations data, include tables, plates, figures and appendices as appropriate.

1.2.5 The following assumptions are valid for section 1.2

1.2.5.1 IR’s will be prepared for the sites identified in the “Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1” and “DP Site Aggregate Area Building 21-257 Footprint Letter Work Plan”.

1.2.5.2 Applicable analytical data previously collected may be evaluated and included in the IR, if applicable. All data collected in support of the investigations of SWMU’s and AOC’s detailed in this Exhibit D will be included in the IR.

1.2.5.3 CONTRACTOR will provide SUBCONTRACTOR prior investigation reports as needed, in Microsoft Word format. Plates will be provided as .pdf files.

1.2.5.4 SUBCONTRACTOR shall review and incorporate NMED notice of disapproval (NOD) comments associated with previous investigation reports, if applicable.

1.2.5.5 SUBCONTRACTOR shall provide final editing, compositing, and production of the IR with minimal assistance from CONTRACTOR.

1.2.5.6 SUBCONTRACTOR shall participate in a formal peer review in accordance with EP-DIR-AP-10070, “Peer Review of Environmental Programs Documents.” Peer reviewers will review the document and provide comments. This activity includes providing electronic files of the peer review draft in the format specified in section 3.2 and 3.3 of this statement of work.

1.2.5.7 SUBCONTRACTOR shall prepare data tables in the main text to include current SSLs/SALs and include footnotes accordingly.

1.2.5.8 SUBCONTACTOR shall incorporate new requirements from NMED guidance documents. This may include revisions to SSLs in Sample Identification Detect (SID) tables, updates and changes.

1.2.5.9 If necessary, SUBCONTRACTOR shall present human and ecological Risk Assessments for each site.

1.2.5.9.1 SUBCONTRACTOR shall conduct site visits and prepare Ecological Scoping Checklists for each SWMU/AOC.

Checklists can be combined if the form of the site releases is similar. The checklists shall be included as an attachment to the risk assessment appendix.

1.2.5.9.2 SUBCONTRACTOR shall evaluate the potential for vapor intrusion of volatile organic compounds into a building for the residential scenario when feasible using the Johnson and Ettinger model. The vapor intrusion spreadsheet calculating the screening levels shall be included as an attachment to the risk assessment appendix.

1.2.5.9.3 SUBCONTRACTOR shall provide ProUCL calculations, including input and output files for each site and scenario (if applicable) as an attachment to the risk assessment appendix.

1.2.5.9.4 SUBCONTRACTOR shall provide calculations of dioxin- and furan-equivalent concentrations for each site and scenario, as appropriate, as an attachment to the risk assessment appendix.

1.2.5.9.5 SUBCONTRACTOR shall incorporate new requirements

from NMED guidance documents. This may include revisions to risk tables (new SSDLs and making sure COPCs with both carcinogenic and non-carcinogenic effects are in both tables for a scenario), recalculations of risks, and updating risk numbers in risk appendix text, main text, and in site risk summaries and conclusions.

1.2.6 Incorporate Peer Review Comments

1.2.6.1 Prepare and submit a final draft to the STR incorporating all peer review comments. This constitutes a final edited and composited version of the

SIR in electronic format, organized and formatted in compliance with N3B requirements for documents and deliverables;

1.2.6.2 The following assumptions are valid for sections 1.2.6.1:

1.2.6.2.1 SUBCONTRACTOR shall incorporate and resolve all

comments resulting from a peer review process and shall obtain all required signatures from peer reviewers as required by the peer review process;

1.2.6.2.2 SUBCONTRACTOR shall submit all electronic files of the final draft document to the STR per section 3.2 and 3.3;

CONTRACTOR will prepare the submittal letter, produce the hard copies, and submit the final document to NMED.

1.2.6.3 Prepare presentation materials for internal, public, and/or regulatory meetings, if required.

1.3 Work Excluded

1.3.1 CONTRACTOR will provide utility maps with the latest available information prior to the start of any work.

1.3.2 CONTRACTOR will procure/provide all waste containers (e.g. cubic yard roll-off bins, steel or poly drums, super-sacks, B12’s/B25’s etc.), liners and labeling.

CONTRACTOR will provide for the initial mobilization/staging to the site, as well as final inspection, transportation and disposition/disposal off-site for all wastes, including hazardous, non-hazardous, universal, LLW, MLLW, RCRA, TSCA and New Mexico Special wastes.

1.3.2.1 CONTRACTOR to provide roll-off bins for loading LLW that will range from 20 yd³ to 25 yd³, IP-1 intermodal containers with side load and top load capabilities.

1.3.3 CONTRACTOR will provide all sampling media (excluding SUBCONTRACTOR personal IH monitoring during field activities) including; sampling labels, preservatives, coolers, chain of custody forms and laboratory sample analysis to be utilized during all investigation field sampling activities.

1.3.4 CONTRACTOR will provide a calibrated, drive-over scale for use in weighing large containers and portable scales small containers to obtain required weights necessary for compliance, developing profiles, waste disposal requests and final disposition.

1.3.5 CONTRACTOR will provide the Waste Management Coordinator (WMC) to provide oversight during waste operations, prepare N3B Waste Profile Form (WPF) and Waste Disposal Requests (WDRs). CONTRACTOR WMC will be deployed to certify, observe, log and perform waste management oversight of SUBCONTRACTOR’s personnel during size reduction, loading, packaging and weighing activities for all waste streams. CONTRACTOR will sign as the Waste Generator for the purposes of this work scope.

1.3.6 CONTRACTOR will supply all Radiological Control Technician (RCT) personnel, instrumentation and support. This will include field-screening, surveys, Radiological Work permits (RWP’s), bio-assay (if necessary) and dosimetry

(TLD’s), Analytical Lab support and provide all Personnel Protective Equipment (PPE) for the N3B personnel to support this work scope.

1.3.7 Work within 5 feet of the NES Sites is prohibited

2.0 TECHNICAL REQUIREMENTS

2.1 Technical Specifications

The following specifications and technical documents are incorporated by reference herein and shall have the same force and effect as if printed in full text.

SUBCONTRACTOR responsible for working to the latest version. The documents provided in Appendix D-8 “Work Plans” are supplemented in sections 1.1.11.1 and

1.1.11.2 of this statement of work.

2.1.1 “Investigation Work Plan for Delta Prime Site Aggregate Area Delayed Sites, Revision 1”, December 2009 (EP2009-0660) LA-UR-09-8180

2.1.2 “DP Site Aggregate Area Building 21-257 Footprint Letter Work Plan”, October

2014 (EP2014-0427) LA-UR-14-26889

2.1.3 New Mexico Environmental Department Disapproval – DP Site Aggregate Area

Building 21-257 Footprint Letter Work Plan, page 2 & 3 “Comments” (incorporated in work plan appendix D-8 for this SOW and referenced in section 1.1.9.2)

2.1.4 “Supplemental Investigation Report for Threemile Canyon Aggregate Area, Revision 1, July 2018 (EM2018-0011)

2.1.5 “Derivation and Use of Radionuclide Screening Action Levels, Revision 2,” LA-UR-12-23292, October 2012 (EP2012-0158)

2.1.6 “Technical Approach to Calculating Recreational Soil Screening Levels for

Chemicals, Revision 3,” LA-UR-12-25447, October 2012 (EP2012-0234)

2.1.7 “Inorganic and Radionuclide Background Data for Soils, Canyon Sediments, and Bandelier Tuff at Los Alamos National Laboratory,” LA-UR-98-4847, September

2.1.8 “Screening Level Ecological Risk Assessment Methods, Revision 5.1,”

LA-UR-18-22418, April 2018 (EP2018-0053)

2.1.9 ECORISK Database, Release 4

2.1.10 EPA regional screening levels available on line at:

http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm

2.1.11 State of New Mexico Environment Department Compliance Order on Consent (June 6, 2016, modified February 2017)

2.1.12 New Mexico Environment Department Risk Assessment Guidance for Site Investigations and Remediation, Volume 1 & Volume II, Soil Screening Guidance for Human Health Risk Assessments (March 2017)

2.1.13 ADEM-SPEC-C-31-2000 Rev. 4, Environmental Management Specification for

Earth Moving; section 2.1.C “MATERIALS – Site Grading and Fill”, section 2.1.D “MATERIALS – Base Course”, and section 3.11 “EXECUTION – Backfilling Excavations/Trenches”.

2.1.14 Electronic Public Reading Room: https://eprr.lanl.gov/oppie/service

2.2 Facility Training, Qualification and/or Certification Requirements

Prior to commencing work on site at TA-21, SUBCONTRACTOR personnel and lower-tier subs shall meet the general and facility training, qualification, and/or certification requirements specified in Appendix D-7: Training Requirements Matrix. (e.g. 40-hour HAZWOPER, 49-CFR

171.1 Subpart A applicability, 172 Subpart H, training/certification HMR/HMPT)

2.3 Technical Approach

The following technical approach or methodology shall be followed in the performance of SUBCONTRACTOR’S work.

2.3.1 SUBCONTRACTOR shall perform all work in accordance with the Consent Order, NMED Risk Assessment Guidance for Site Investigations and Remediation (March 2017 or current version) CONTRACTOR methodologies, and any technical direction provided by the STR.

2.3.2 SUBCONTRACTOR shall use the N3B Request for Information (RFI) form, provided in Appendix D-14 of this Exhibit to ask questions, request information, or request clarification from CONTRACTOR. The N3B RFI form, Request for Information, Technical Subcontract Management: shall not be used as a technical or commercial change document and shall not alter the subcontract requirements in any way or to direct a change in SUBCONTRACT requirements.

Requests to deviate (change) from subcontract requirements shall be made utilizing the Subcontractor Deviation Disposition Request (SDDR) form per Appendix D-15.

2.3.3 CONTRACTOR may make technical changes to previously approved and issued technical documents pursuant to Exhibit A, General Conditions. Those changes may be delineated on a; Field Change Request, Field Change Notice, Design Revision Notice or other appropriate document attached to a Change Request.

2.3.4 All requests from SUBCONTRACTOR must go through the STR assigned to the project. No field direction, changes or notices will be acceptable from ANY individual other than the STR and the N3B Contracting Officer (CO).

2.3.5 In executing the activities outlined in this Exhibit D, it is incumbent upon SUBCONTRACTOR to achieve schedule requirements set forth herein and consistent quality as required in the subcontract documents made a part hereof.

2.4 Technical Performance Requirements

2.4.1 SUBCONTRACTOR must meet CONTRACTOR’s intended purpose of the Work to CONTRACTOR’S satisfaction and complete the following to reach Substantial Completion:

2.4.1.1 All items removed, packaged, and staged.

2.4.1.2 Complete demolition of any above grade structures, below grade structures, and foundations including slabs, stem walls, footers, tanks and piping.

2.4.1.3 Complete all excavations, sampling, nature and extent, remediation efforts, backfill, final grading and site stabilization.

2.4.1.4 NMED approved Investigation Report.

2.4.2 SUBCONTRACTOR shall comply with all United States, Federal, DOE, N3B, and New Mexico laws, regulations, and requirements.

2.4.3 SUBCONTRACTOR shall prepare for and participate in periodic CONTRACTOR, DOE, and NMED compliance audits, as necessary.

2.4.4 Prior to site mobilization, SUBCONTRACTOR shall prepare for and participate in the performance of the CONTRACTOR Readiness Review; and complete any PRE- and POST start findings. CONTRACTOR expects to give the SUBCONTRACTOR written notice to proceed within 3 working days of satisfactorily meeting the requirements of the Readiness Review, including closing out all pre-start findings. No mobilization is permitted before the notice to proceed is given. All work documents described in Exhibit I Required Submittals, such as the Site-Specific ES&H Plan (SSESHP), Integrated Work Documents (IWDs), and worker-training certifications shall be reviewed and approved (with CONTRACTOR comments incorporated) prior to the Readiness Review.

2.4.4.1 SUBCONTRACTOR is required to submit within 15 working days after Notice of Award a complete detailed Project Execution Plan (PEP) that describes at a minimum the following:

2.4.4.1.1 Detailed description and sequencing of all activities including; mobilization, site access, work zone designation, storm water controls, safety and over-all work execution approach.

2.4.4.1.2 A comprehensive list of equipment to be used for the process; the method and sequence/phases of sampling, hazardous materials removal, demolition technique demonstrating the process which includes a narrative of the state or stability of the partially demolished structure to completion.

2.4.4.1.3 Description/work approach outlining the investigation and remediation work activities, existing conditions, procedures and precautionary measures to include waste characterization and verification, public safety and radiological protection.

2.4.4.1.4 Management approach and how it will be implemented in the field, as well as a detailed approach to accomplish “nature and extent”, certificates of completion, investigation reporting and end state goals and objectives.

2.4.5 SUBCONTRACTOR shall comply with the following Key Personnel Requirements:

2.4.5.1 All SUBCONTRACTOR Key Personnel shall attend the Readiness Review and Project Kickoff meetings. Either the SUBCONTRACTOR Project Manager and/or Project Superintendent shall attend weekly project status meeting with the CONTRACTOR. Either the SUBCONTRACTOR Project Manager and/or Project Superintendent shall attend all daily Pre-Job Briefings.

2.4.5.2 The SUBCONTRACTOR Key Personnel Project Manager shall be onsite (i.e., TA-21) as needed during regular on-going field activities. The SUBCONTRACTOR Key Personnel Project Manager shall be pro-active and onsite during the start of all major activities (e.g., mobilization, demolition, waste packaging, sampling, remediation and site stabilization) and to properly engage in the roles and responsibilities of project management, communication and the mitigation of any issues that could impact the project.

2.4.5.3 The SUBCONTRACTOR Key Personnel Project Superintendent (Person- In Charge (PIC) shall be onsite (i.e., TA-21) 100% of the time during regular on-going field activities.

2.4.5.4 The SUBCONTRACTOR Key Personnel ES&H Professional shall be onsite (i.e., TA-21) 100% of the time during regular on-going field activities.

2.4.5.5 In the event any of the SUBCONTRACTOR Key Personnel cannot meet these onsite requirements, temporary substitutions of the SUBCONTRACTOR Key Personnel can be accommodated. However, advanced notice, to the extent possible, must be given and approved by STR a minimum of 3 days prior to the substitution (unless it is an emergency, or medical situation), and shall meet all training requirements for their specific key position.

2.4.5.6 SUBCONTRACTOR Key Personnel shall only fulfill one Key Position at any one time (i.e., one individual cannot fulfill 2 or more Key Personnel positions at any one time), except in the rare temporary substitution cases per prior STR approval. Emergency Personnel changes and position will be evaluated on a case-by-case basis.

2.4.5.7 SUBCONTRACTOR Key Personnel shall not fulfill other project roles that would distract from their primary key position responsibilities (e.g. “Key Personnel” shall not be an equipment operator or craft laborer while fulfilling their key position.

2.4.6 All work will be performed in a site access controlled area requiring SUBCONTRACTOR to check in and out daily with site Access Control and have work activities placed on the Plan of the Day (POD) and Plan of the Week (POW) schedules. This shall be coordinated with the STR.

2.4.7 SUBCONTRACTOR shall account for adequate time to enter (sign in) and exit (sign out) of the work area, as well as adequate time to perform/participate in pre-job safety meetings, plan of the day/week meetings and weekly status meetings.

2.4.8 SUBCONTRACTOR shall provide N3B/LANL badged, trained and qualified personnel to perform unclassified work at this location. NOTE: Short-term visits may include entering an area to perform a repair or make a delivery and visitor badges can be obtained through the STR. SUBCONTRACTOR must use U.S.

citizens to work inside the TA-21 area.

2.4.9 SUBCONTRACTOR shall inspect and approve all equipment prior to its use during TA-21 work. Equipment should be free of leaks and maintained at the highest standard possible during operation.

2.4.10 SUBCONTRACTOR shall escort and utilize appropriate flagging personnel for heavy trucks/equipment through the access gates and to the designated work-site.

2.4.11 SUBCONTRACTOR shall install storm water pollution prevention controls before site/soil disturbance and must be maintained during field work execution per the Storm Water Pollution Prevention Plan (SWPPP).

2.4.11.1.1 SUBCONTRACTOR shall follow SWPPP guidelines to

institute best management practices (BMPs) to restrict potential surface water impacts to the site. BMPs shall be applied to natural storm water run on/runoff routes that may be impacted by operations, as well as the generation of secondary liquid streams such as demolition, decontamination and dust suppression fluids.

2.4.11.1.2 Investigative Derived Waste (IDW) must be managed in accordance with D-6 WCSF and Appendix B of the IWP DP Site Aggregate Area, Rev. 1. If results for Excavated Environmental Media are within residential SSL and SAL limits, it can be used to fill excavations that are complete.

Storm water controls must be installed and maintained around the spoils piles per D-5 SWPPP. Composite samples shall be taken every 50 yd³ and the locations marked for segregation for disposal if necessary. IDW must be staged until analytical data allows for use as fill described above.

2.4.12 SUBCONTRACTOR is responsible for repairing any damage due to construction activities to current storm water permitted features and for preventing storm water runoff from discharging to delineated Site Monitoring Area (SMA) drainage.

(see appendix D-4 map 3)

2.4.13 Dust control measures shall be used to control airborne emissions to an acceptable level per the SUBCONTRACTOR Site Specific Environmental, Safety and Health Plan (SSESHP). Dust shall be controlled by wetting methods and engineering controls, as necessary. SUBCONTRACTOR shall supply, install and maintain a compatible back-flow preventer to be used on CONTRACTOR supplied fire hydrant. Water shall be applied in a controlled manner to manage the dust without resulting in excess ponding or run-off. Respirable silica air monitoring is required per Exhibit F.

2.4.14 SUBCONTRACTOR shall provide robust boundaries (e.g. mobile metal fencing, rails, barricades etc.) and signage around radiological areas, demolition activities, excavations (>8 feet bgs) and heavy traffic work areas to prevent unauthorized access. Boundaries shall have safe access points at each entrance/exit. Less robust construction boundaries/fencing may be utilized for low-risk activities. SUBCONTRACTOR shall procure and install, at the RCT’s direction, 200 count six (6) foot high studded T-Posts to delineate radiological controlled areas, radiological materials areas, contaminated areas and staging areas.

2.4.15 SUBCONTRACTOR shall be responsible for any needed traffic control on site per Exhibit F requirements. In the event traffic will be impeded or blocked for an extended period, a Traffic Control Plan may be requested.

2.4.16 SUBCONTRACTOR shall comply with the Excavation/Fill/Soil Disturbance Permit (EXID). (see appendix D-16 EXID)

2.4.17 Upon completion of demolition, sampling and/or remediation activities, SUBCONTRACTOR shall fill and compact excavations to match existing grade/contour with backfill. Disturbed areas shall be stabilized with compacted base course per the SWPPP. Base course material shall meet the requirements of the Earth Moving Specification section 2.1.D and be compacted to approximately 95% maximum dry density as confirmed by STR. Required fill material shall meet the requirements of the Earth Moving Specification section 2.1.C. Backfill shall be placed per Earth Moving Specification section 3.11 and compacted to approximately 90% maximum dry density as confirmed by STR. Fill material and base course must be sampled prior to arrival to demonstrate Residential SSL’s and SAL’s. A composite sample every 500 yd³ must be submitted to the SMO for analysis prior to arrival on-site for use. Testing under ASTM D422 is not required and will be waived by STR. (see appendices D-5 SWPPP, D-18 Earth Moving Specification)

2.4.18 SUBCONTRACTOR shall be responsible for mitigating all chemical, physical, and biological hazards for worker occupational safety. Biological hazards include but are not limited to; rodent and bird droppings, Hantavirus, rattlesnakes, scorpions, mold, Black Widow and Brown Recluse spiders.

2.4.19 If bollards, railings, and steel components are found to be coated with lead based paint (LBP) above regulatory (RCRA) limits (after mass balance) or PCB’s above TSCA regulatory limits, paint shall be abated by SUBCONTRACTOR to reduce the volume of this waste stream.

2.4.20 SUBCONTRACTOR shall not load/package any piping with lead solder joints or lead packing, with other LLW debris. Instead segregate the lead materials in a separate container as MLLW.

2.4.21 SUBCONTRACTOR shall develop a Sample and Analysis Plan to characterize all waste generated for approval by CONTRACTOR and collect samples for analyses deemed necessary to properly characterize generated waste in accordance with the waste acceptance criteria (WAC) for the intended disposal facility.

2.4.22 SUBCONTRACTOR shall characterize, line, size reduce, load and package all waste per disposal site’s Waste Acceptance Criteria (WAC). Waste Control Specialists’ (WCS) waste acceptance criteria (WAC) shall be adhered too.

Loaded containers must be weight compliant and minimize void spaces.

Containers shall not have any free liquids present and an adequate amount of absorbent shall be placed into each container prior to loading.

2.4.23 SUBCONTRACTOR shall be responsible for weekly tracking and providing confirmatory information to the waste management coordinator for offsite disposal. This should include a log detailing waste items, description, volumes and dates when packaged and/or sealed. SUBCONTRACTOR must weigh each empty container and record the tare weight prior to loading. Once loaded/packaged, SUBCONTRACTOR will weigh the loaded container and record the gross weight (not to exceed 39,000 lbs). SUBCONTRACTOR shall keep a documented record/log of waste types, detailed descriptions, estimated volumes, weights to support information required by the chosen disposal facility.

If containers are over-weight, SUBCONTRACTOR will be responsible for repackaging/reducing material to meet compliance.

2.4.24 Prior to any demolition activities, SUBCONTRACTOR shall prepare and submit all required State of New Mexico notification forms/letters as needed. This requirement includes notification to NMED, at least 10 working days before any work begins, in accordance with 20 NMAC 2.78 and 40CFR 61.145. NESHAPS notification for any demolition shall be the responsibility of the SUBCONTRACTOR. This notification must be coordinated through CONTRACTOR’s Regulatory Compliance Group at least 15 working days prior to the start of these activities. The project STR shall be included on correspondence with NMED.

2.4.25 SUBCONTRACTOR is permitted and encouraged to take photographs during execution of this work for documentation, records and packaging with a CONTRACTOR provided camera ONLY. No personal cameras shall be used.

SUBCONTRACTOR can request photographs through the STR after review.

2.4.26 SUBCONTRACTOR shall submit copies of their daily reports by noon of the following work day and a weekly summary to the STR by noon of the following Monday. These progress reports shall be broken down by day of the week and report the progress of each day. SUBCONTRACTOR may be asked to provide a daily report to the STR by noon the following day if there is an incident such as a spill or an injury.

2.4.27 SUBCONTRACTOR shall attend weekly status meetings with N3B project personnel and provide a two-week look ahead schedule highlighting required N3B support needs, issues, corrective actions and lessons learned.

2.4.28 All accident or incident notifications must comply with Exhibit F requirements.

2.4.29 SUBCONTRACTOR shall submit a monthly accrual by the due date of each month estimating work completed through the end of the month. Monthly invoices should be submitted in a timely manner for work complete.

2.4.30 SUBCONTRACTOR shall prepare a Final Project Closeout Report that includes the schedule, activities that took place, lessons learned, total safe work hours, IH sampling results and notable events throughout the project. The final report must also include project records indicating locations of systems removed and final disposition. This report is due within 15 working days after fieldwork is completed and must be reviewed and approved by STR. The report, at a minimum, should include the following:

2.4.30.1 Environmental lessons learned should describe, at a minimum, the range of actions required to prevent releases, storm water pollution prevention BMP’s, records, efficiently executed activities, common problems regarding…