ML22071A002

DOE-OR-01-2666 K-33 Title Transfer Document (EIS Reference for Kairos Hermes CP Application)

ML22071A002
Person / Time
Site:	Hermes
Issue date:	09/30/2015
From:	US Dept of Energy (DOE)
To:	Office of Nuclear Material Safety and Safeguards
Dozier T
References
DOE/OR/01-2666
Download: ML22071A002 (199)

Text

DOE/OR/01-2666 COVENANT DEFERRAL REQUEST FOR THE PROPOSED TITLE TRANSFER OF THE FORMER K-33 AREA AT THE EAST TENNESSEE TECHNOLOGY PARK, OAK RIDGE, TENNESSEE FINAL-CONCURRED September 2015

Regulator Approvals APPROVAL OF COVENANT DEFERRAL REQUEST The United States Department of Energy (DOE) has requested that the U.S.

Environmental Protection Agency (EPA) approve DOE's request to defer the deed covenant required by Section 120(h)(3)(A)(ii)(I) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). DOE maintains that this approval will facilitate DOE's transfer of real property on the Oak Ridge Reservation (ORR) National Priorities List Site before it has been determined that all necessary remedial action has been taken at this parcel.

DOE has designated this property, which is located at ORR's East Tennessee Technology Park (ETTP) area, as the Former K-33 Area (or the Property). The Property contains a total of 136.4 acres, more or less, and is located in the western portion of the ETTP Heritage Center. The Property comprises a portion of the Zone 2 Soil Record of Decision (ROD) that has been divided into a set of Exposure Units (EUs). The transfer footprint is located on seven EUs and comprises the entire area of some EUs and a portion of others. The Former K-33 Area occupies three Zone 2 ROD EUs in their entirety (Z2 approximately 25.1 acres, Z2 approximately 24 acres, Z2 approximately 21.5 acres); a portion of two EUs where the balance of these EUs have already been transferred (Z2-0I - approximately 21.8 acres, Z2 approximately 11.7 acres);

and, a portion of two EUs where the balance of these EUs are being addressed under the K-31 Building decontamination and decommissioning (D&D) Project (Z2 approximately 12.8 acres, Z2 approximately 19.5 acres). Two buildings are located in EU Z2-08 that will undergo D&D. Although EU Z2-08 soils have been characterized and confirmed to only require industrial use land controls, confirmation soil sampling will be conducted beneath these buildings after completion of D&D to ensure soil cleanup levels have been achieved. DOE is proposing to transfer the title of this land for mixed (industrial/commercial) use.

Based on the attached Findings, and in the exercise of authority granted to EPA under CERCLA Section l 20(h)(3 )(C) to approve the deferral of this covenant upon determining that the Property is suitable for transfer prior to completion of all necessary remedial action, I have so determined and I hereby APPROVE this request. This approval is expressly contingent upon the transfer proceeding to a final recorded Deed as presented to EPA in the CDR, Environmental Baseline Survey and draft Deed, including the Response Action Assurances, the characterization of contamination on the Property, the extent and definition of the Property, the intended use of the Property, and Public Notice and opportunity for comment as required. Any change to the underlying contingencies will effect a revocation of this approval.

In accordance with CERCLA Section 120(h)(3)(C), the covenant may not be deferred unless and until t fTennessee, or his delegatee, has concurred in this deferral.

/~t-i4/..r Date Director, Superfund Division EPA Region4

FlNDINGS OF THE DIRECTOR, SUPERFUND DIVISION, EPA REGION 4, REGARDING EARLY TRANSFER BY THE UNITED STATES DEPARTMENT OF ENERGY OF LAND PARCEL K-33 AT EAST TENNESSEE TECHNOLOGY PARK, OAK RIDGE, TENNESSEE Whenever the federal government transfers real property to another person or entity, Section 120(h)(3)(A)(ii}(I) of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) requires the landholding federal agency to include in its deed of transfer a covenant warranting that "all remedial action necessary to protect human health and the environment ... has been taken before the date of such transfer ...". However, CERCLA Section 120(h)(3)(C) authorizes such transfer without this covenant under a statutorily defined process. For federal real property on the National Priorities List (NPL), this section authorizes the Administrator of the U.S. Environmental Protection Agency (EPA), with the concurrence of the Governor, or his delegatee, of the State in which the NPL facility is located, to defer this covenant upon determining that the property is suitable for transfer prior to completion of all necessary remedial action. The Administrator's authority to defer the covenant has been delegated to the Regional Administrator of EPA Region 4, which has been further delegated in this Region to the Director of the Superfund Division.

In January 2015, the United States Department of Energy (DOE) submitted to EPA and the State of Tennessee a Final Covenant Deferral Request (CDR) covering a parcel of property within the East Tennessee Technology Park (ETTP) area ofDOE's Oak Ridge Reservation NPL site, Oak Ridge, Tennessee. The property, which DOE has designated as Land Parcel K-33 (Parcel K-33 or the Property), is located in the northwestern portion of the ETTP Heritage Center, within the City of Oak Ridge in Roane County and consists of 136.4 acres, more or less.

The Property is located inside the "main plant" area. Buildings 892 and 892-Y are excluded from this transfer, but the underlying property is included. The soil beneath the buildings meet the criteria in the associated CERCLA Record of Decision (Zone 2) for industrial use. Once the buildings are demolished, DOE will conduct additional sampling, under a sampling and analysis plan that requires EPA approval, to verify that the soils meet the Zone 2 remediation levels for industrial use. The results of this sampling will be reported in a Phased Construction Completion Report (PCCR) that will be submitted for EPA and TDEC review and approval. DOE will conduct additional remediation if determined to be necessary, as described in the PCCR and/or under the process described in Section XXI (Review/Comment on Draft/Final Documents) and Section XX (Additional Work) of the Federal Facility Agreement.

DOE proposes to transfer the Property to an as yet undisclosed transferee prior to making a final determination as to whether all necessary remedial action has been taken at Parcel K-33.

The Property has been identified by the unidentified transferee and DOE as a potential site for new facilities to be used for office space, industrial activities, or other commercial uses, also described by DOE as a brownfield mixed-use commercial and industrial park.

I have reviewed the particulars of DOE's proposed transfer of Parcel K-33, described and depicted in CDR Appendix A. Based on consideration of this and other information received from DOE in its final CDR (January 2015), I hereby make the following findings, in accordance

with CERCLA Section l 20(h)(3)(C):

1. The Property is suitable for transfer for the use intended by the transferee. and the intended use is consistent with protection of human health and the environment. Information regarding the nature and extent of contamination and the results of a risk evaluation presented in its Environmental Baseline Survey Report (CDR Attachment A) supports the conclusion that the intended use of the Property for office, commercial, or industrial activities would not cause unacceptable exposures to adults engaged in those activities or be otherwise inconsistent with protection of human health and the environment.

EPA Guidance 1 presumes that the CDR includes the results of a completed Remedial Investigation and Risk Assessment. The Guidance allows for the transferring federal agency to demonstrate why a completed Remedial Investigation or Risk Assessment is not necessary before the land is transferred. In this instance, the DOE Environmental Management (EM) program has completed a Remedial Investigation and Risk Assessment for soils but has not completed a Remedial Investigation or Risk Assessment for groundwater, including the vapor intrusion pathway. The risk evaluation using all available data for the Exposure Units (EUs) that comprise the K-33 transfer footprint is summarized in Section 4 of the Final CDR (DOEIOR/01-253 7). The risk evaluation indicates that there are no unacceptable risks associated with using the Property in the office/commercial/industrial manner proposed and will be restricted in the transfer documentation (deed).

The DOE has divided approximately 1,400 acres at ETIP into 80 exposure units (EUs) under the Zone 1 Interim ROD for purposes of evaluating risk and making remedial decisions.

The remedial decisions address soil and subsurface structures to a depth of I 0 feet, buried waste and sources of groundwater contamination. Zone 2 of ETIP, consisting of approximately 800 acres, has been divided into 44 EUs for purposes of evaluating risk and making remedial decisions under the Zone 2 Interim ROD. The Property is located with Zone 2.

DOE completed three Phased Construction Completion Reports (PCCRs) to address any soil contamination in areas of ETTP that include the Property, which is located on all or parts of Exposure Units (EUs) Z2-0l, Z2-02, Z2-03 , Z2-04, Z2-05, Z2-08 and Z2-09. The PCCRs for these EUs documented the remedial actions conducted for these EUs concluded that no further remedial actions, with respect to soils, were needed in addition to the institutional controls within the area of all seven EUs. The PCCRs and supporting documentation evaluated the environmental data for the Property, evaluated the potential risk to industrial receptors, and described the remedial actions (RAs) completed within the boundaries of the Property. The PCCRs provide some of the foundational information to support transfer. EPA concurs with the conclusions in those documents, and has approved the PCCRs. The Final Record of Decision for ETIP (Sitewide ROD) will finalize all remedial actions for all media within the Property.

Soil, groundwater and the vapor intrusion pathway must be evaluated and any necessary remediation taken before the covenant that all remedial action has been taken may be given by DOE. Based on the above PCCR documents, however, soil samples indicate that no 1 EPA Guidance on the Transfer of Federal Property by Deed Before All Necessary Remedial Action Has Been Taken Pursuant 10 CERCLA Section I 20(11)(3) - (Early Transfer A111/iority Guidance), June 16, 1998.

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contaminants are present at levels above a level protective for the uses planned for the Property.

The groundwater investigation has begun and the nature and extent of groundwater contamination will be addressed in the Final Sitewide RI/FS, and submitted to EPA for its review and approval.

Current evidence indicates that a vapor intrusion exposure pathway is unlikely at the Property. While currently present on the site, buildings 892 and 892-Y will not be transferred at K-33 because DOE intends to demolish these buildings. Additionally, soil vapor samples have been taken from approximately 95 sample locations across ETTP. Based on these soil vapor sample results and the results of the soil and groundwater investigations to date, a complete vapor intrusion pathway has not been identified for any of the buildings that have been sampled at ETTP. Although the available data suggest the general absence ofVOCs in the groundwater beneath the study area, as summarized by the DOE Envirorunental Baseline survey, there is uncertainty concerning the groundwater flow paths due to the karst conditions in the bedrock underlying the K-33 area. Due to available information and this uncertainty, deed language will ensure that necessary measures will be taken to ensure protectiveness in any future building construction.

EPA Region 4 has provided guidance to DOE on evaluation of the vapor intrusion pathway (Proposed Modifications to the Evaluation ofthe Vapor lntntsion Pathway in Support ofProperty Transfers at the East Tennessee Technology Park (EITP), January 6, 2006, Oak Ridge, Tennessee," EPA 2006). Consistent with this guidance, no sampling was determined to be necessary at the Property because DOE has agreed that the Quitclaim Deed for the property will include, as determined by the Grantor (DOE) and the Grantee, the necessary building design features to minimize this potential exposure..

2. The Deed proposed to govern the transfer between DOE and the transferee of the Property contains the Response Action Assurances required by CERCLA Section 120(h)(3)(C)(ii). DOE has agreed that the draft Deed will, as to the Response Action Assurances and other substantive provisions relevant to the suitability of this specific parcel for transfer, be finalized and recorded as presented to EPA in its draft form.

(a) The draft Deed, which, when finalized, will effect transfer of the Property, contains all use restrictions necessary to ensure protection of human health and the environment, as set out below. Consistent with DOE's prior determination that use of the entire ETTP area should be limited to industrial activities both before and after all ETTP remediation has been completed, the draft Deed contains land use restrictions prohibiting, by means of covenants by the Grantee: i) use or disturbance of any portion of the Property located more than 10 feet below ground surface level without having first obtained authorization from DOE's Excavation/Penetration Permit Program;; ii) use of any portion of the Property for residential housing, any elementary or secondary school, or any child care facility or children's playground; and iii) any use of groundwater underlying the Property without prior written approval of DOE, EPA, and TDEC. Further, the Grantee covenants and agrees that buildings will be designed and constructed to minimize exposure to 3

volatile organic compounds, consistent with EPA guidance.2 All of the Deed's land use restrictions and covenants will expressly bind the initial transferee and every successor transferee, and "run with the land." In addition, the Deed will operate as a Notice of Land Use Restrictions, T.C.A. §68-212-225, enforceable by the TDEC Commissioner or any unit oflocal government having jurisdiction over the Property.

(b) The draft Deed provides that there will be restrictions on use necessary to ensure that the required remedial investigations, response action and oversight activities will not be disrupted. Restrictive covenants ensuring this are agreed to by and binding upon the Grantee and all its successors and assigns.

(c) The draft Deed provides that all necessary response action will be taken and identifies the schedule for investigation and completion of all necessary response action as approved by the EPA under the Federal Facility Agreement (FFA), subject to modification through processes under the FFA. These processes for schedule modification include approval by EPA or resolution through the dispute resolution process. The current schedule establishes that the completion of Zone 2 remedial actions is scheduled to occur in 2026, and the Sitewide Groundwater OU (including the soil vapor pathway) Record of Decision will be submitted for EPA review in 2023. That Record of Decision will establish the timeframe for the groundwater action to meet its remedial action objectives.

(d) The Deed provides that DOE will submit annual budget requests to the Office of Management and Budget that adequately address schedules for investigation and completion of remediation of the Property, subject to congressional authorization and appropriations.

3. DOE provided public notice of the proposed transfer and opportunity for written comment. as required by CERCLA Section 120(h)(3)(C)(i)(Ill). The CDR was issued in draft form for regulator review on August 8, 2014. TDEC provided written confirmation that it reviewed the draft CDR and had no comments on September 8, 2014. Comments were received from EPA Region 4 on September 5, 2014. The comments and DOE's responses are included in this CDR.

The CDR package was available for public review from September 24, 2014, until October 23, 2014, and the availability of the documents for review was announced in three area newspapers and in the online version of one newspaper. No public comments were received.

4. The deferral and the transfer of the Property will not substantially delay any necessary response action at the Property. Implementation of the ETTP Zone 2 ROD will not be delayed by the transfer of this Property. The schedules for investigation and completion of Zone 2 soils actions and to address ETTP groundwater and soil vapor contamination, have been agreed upon by DOE, EPA, and TDEC as part of their ongoing planning and prioritization activities under the FFA needed to structure and sequence the many elements of the overall cleanup of the Oak Ridge Reservation NPL site. The currently-approved schedule, included in Appendices E and J 2

Radon prevention in the design and construction ofsc/100/s and other large buildings, EPA/625/R-92/016, January 1993.

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of the FFA, provides for completion of Zone 2 remedial actions by 2026 and submittal of a Final Record of Decision for groundwater in 2023 . Although the schedules may be amended in accordance with FFA provisions allowing changes to schedules because of future events affecting the overall site cleanup, there is no reason to anticipate that any response actions would be delayed by this deferral or transfer.

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BILL HASLAM September 4, 2015 Ms. Sue Cange Environmental Manager Un ited States Department of Energy Oak Ridge Operations Office P.O. Box 200 1 Oak Ridge, Tennessee 37831 Re: Concurrence pursuant to CERCLA Section 120 (h)(3)(C) for East Tennessee Technology Park land transfers , K-31 and K-33 building areas and related parcels

Dear Ms. Cange:

This letter is to express my concurrence in the Covenant Deferral Requests (CDR) for transfers of federal property located at the East Tennessee Technology Park. Based on information provided in the Covenant Deferral Requests and review by staff in the Tennessee Department of Environment and Conservation (TDEC), the State concurs with the approvals by the federal Environmental Protection Agency (EPA) provisions found in Section 120(h)(3)(C) of the federal Comprehensive Environmental Response, Compensation and Liabi lity Act as evidenced by signed documents by the Region IV EPA Director of the Superfund Division dated January 22, 2015 and August 25, 201 5 attached to this letter.

It is my understanding and expectation that the Department of Energy (DOE) will remain fu lly responsible for any remediation that may be necessary at these sites. Further, it is my understanding that this CDR does not waive or impact in any way the State's right to recover any damages that may have been caused to its Natural Resources.

DOE ' s approach to handling its statutory environmental cleanup responsibilities while also seeking to provide opportunities for economic development for the Oak Ridge area is appreciated.

Bill Haslam

'15 SEP: 5 A!J.~l:3H STATE CAPITOL

• N ASll VILLE, TN 3 724 3-000 1

• PH: 615 .74 i.2oor

• www.t n .gov

APPROVAL OF COVENANT DEFERRAL REQUEST The United States Department of Energy (DOE) has requested that the U.S.

Environmental Protection Agency (EPA) approve DOE's request to defer the deed covenant required by Section 120(h)(3)(A)(ii)(I) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). DOE maintains that this approval will facilitate OOE's transfer of real property on the Oak Ridge Reservation (ORR) National Priorities List Site before jt has been determined that all necessary remedial action has been taken at this parcel.

DOE has designated this property, which is located at ORR 's East TeMessee Technology Parle (EITP) area, as the Fonner K-33 Area (or the Property). The Property contains a total of 136.4 acres, more or less, and is located in the western portion of the ETTP Heritage Center. The Property comprises a portion of the Zone 2 Soil Record of Decision (ROD) that has been divided into a set of Exposure Units (EUs). The transfer footprint is located on seven EUs and comprises the entire area of some EUs and a portion of others. The Fonner K-33 Area occupies three Zone 2 ROD EUs in their entirety (Z2 approximately 25. l acres, Z2 approximately 24 acres, Z2-09 ... approximately 21.5 acres); a portion of two EUs where the balance of these EUs have already been transferred (Z2-0I *approximately 21.8 acres, Z2-02 .. approximately 11.7 acres);

and, a portion of two EUs where the balance of these EUs are being addressed under the K*31 Building decontamination and decommissioning (D&D) Project (Z2 approximately 12.8 acres, Z2-0S - approximately 19.S acres). Two buildings are located in EU Z2-08 that will undergo D&D. Although EU Z2-08 soils have been characterized and confinned to only require industrial use land controls, confinnation soil sampling will be conducted beneath these buildings after completion of D&D to ensure soil cleanup levels have been achieved. DOE is proposing to transfer the title of this land for mixed (industriaVcommercial) use.

Based on the attached Findings, and in the exercise of authority granted to EPA under CERCLA Section 120(h)(3)(C) to approve the deferral of this covenant upon detennining that the Property is suitable for transfer prior to completion of all necessary remedial action, I have so detennined and I hereby APPROVE this request. This approval is expressly contingent upon the transfer proceeding to a final recorded Deed as presented to EPA in the CDR, Environmental Baseline Survey and draft Deed, including the Response Action Assurances, the characterization of contamination on the Property, the extent and definition of the Property, the intended use of the Property, an4 Public Notice and opportunity for comment as required. Any change to the underlying contingencies will effect a revocation of this approval.

In accordance with CERCLA Section 120(h)(3)(C), the covenant may not be deferred unless and until f Tennessee, or his delegatee, has concurred in this deferral.

APPROVAL OF COVENANT DEFERRAL REQUEST The United States Department of Energy (DOE) has requested that the U.S.

Environmental Protection Agency (EPA) approve DOE's request to defer the deed covenant required by Section 120(h)(3)(A)(ii)(I) of the Comprehensive Environmental Response, Compensation, and Liability Act {CERCLA). DOE maintains that this approval will facilitate DOE's transfer of real property on the Oak Ridge Reservation (ORR) National Priorities List Site before it has been detennined that all necessary remedial action has been taken at this parcel.

DOE has designated this property, which is located at ORR's East Tennessee Technology Park (EITP) area, as the Fonner K-31 Area {or the Property). The Property contains a total of 61 acres, more or less, and is located in the western portion of the ETTP Heritage Center. The Property comprises a portion of the Zone 2 Soil Record of Decision (ROD) that has been divided into a set of Exposure Units (EUs). The transfer footprint is located on five EUs and comprises the entire area of some EUs and a portion of others. The Former K-31 Area occupies three Zone 2 ROD EUs in their entirety (Z2 approximately 25.6 acres, Z2 approximately 10.9 acres, and Z2 approximately 20.9 acres); and a portion of two EUs where the balance of these EUs were addressed under the K-33 CDR (Z2 approximately 1.6 acres and Z2-0S -

approximately 1.6 acres).

Based on the attached Findings, and in the exercise of authority granted to EPA under CERCLA Section 120(h)(3)(C) to approve the deferral of this covenant upon determining that the Property is suitable for transfer prior to completion of aJI necessary remedial action, I have so detennined and I hereby APPROVE this request. This approval is expressly contingent upon the transfer proceeding to a final recorded Deed as presented to EPA in the CDR, Environmental Baseline Survey and draft Deed, including the Response Action Assurances, the characterization of contamination on the Property, the extent and definition of the Property, the intended use of the Property, and Public Notice and opportunity for comment as required. Any change to the underlying contingencies will effect a revocation of this approval.

In accordance with CERCLA Section 120(h)(3)(C), the covenant may not be deferred unless and until the Governor of Tennessee, or his delegatee, has concurred in this deferral.

Director, Superfund Division EPA Region 4

Table of Contents Acronyms ................................................................................................................................ v Introduction ............................................................................................................................... 1 1.0 Property Description ...................................................................................................... 6 2.0 Nature/Extent of Contamination .................................................................................10 2.1 Evaluation of Potential Contamination in the Former K-33 Area.......................... 12 2.2 ETTP Soil and Groundwater Contamination ......................................................... 15 2.3 ETTP Building Demolition Activities.................................................................... 16 3.0 Analysis of Intended Land Use During the Deferral Period ......................................16 4.0 Risk Evaluation Results ...............................................................................................16 4.1 Vapor Intrusion Pathway Evaluation ..................................................................... 20 5.0 Response/Corrective Action and Operation and Maintenance Requirements ...........20 6.0 Contents of Deed/Transfer Agreement .......................................................................22 6.1 Background Introduction........................................................................................ 23 6.2 Selected Excerpts from the Draft Quitclaim Deed Related to Protection of Human Health and the Environment ...................................................................... 24 Exhibit A to Quitclaim Deed, Survey Plat Showing the Transfer Footprint .. 27 Exhibit B to Quitclaim Deed, National Environmental Policy Act (NEPA)

Allowable Uses of the Real Property............................................................. 35 Exhibit D Addendum to Quitclaim Deed, CERCLA Section 120(h)

Requirements and Assurances ....................................................................... 37 Exhibit F to Quitclaim Deed, Environmental Baseline Survey Report .......... 41 7.0 Responsiveness Summary ...........................................................................................43 7.1 Regulator Comments .............................................................................................. 43 7.2 Public Comments ................................................................................................... 51 List of Attachments ATTACHMENT A - ENVIRONMENTAL BASELINE SURVEY REPORT FOR THE PROPOSED TITLE TRANSFER OF THE FORMER K-33 AREA AT THE EAST TENNESSEE TECHNOLOGY PARK, OAK RIDGE, TENNESSEE iii

Acronyms AEA Atomic Energy Act of 1954 bgs below ground surface CDR Covenant Deferral Request CERCLA Comprehensive Environmental Response, Compensation, and Liability Act of 1980 CFR Code of Federal Regulations COC contaminant of concern CROET Community Reuse Organization of East Tennessee D&D decontamination and decommissioning DCE dichloroethene DOE U.S. Department of Energy DQO data quality objective DVS Dynamic Verification Strategy EA Environmental Assessment EBS Environmental Baseline Survey ELCR excess lifetime cancer risk EM Environmental Management EPA U.S. Environmental Protection Agency ETTP East Tennessee Technology Park EU exposure unit FFA Federal Facility Agreement FY fiscal year HI hazard index MCL maximum contaminant level NCP National Contingency Plan NEPA National Environmental Policy Act of 1969 NFA No Further Action NFI No Further Investigation NPL National Priorities List OREM Oak Ridge Office of Environmental Management ORGDP Oak Ridge Gaseous Diffusion Plant ORO Oak Ridge Office ORPMP Oak Ridge Performance Management Plan ORR Oak Ridge Reservation PCCR Phased Construction Completion Report RAO remedial action objective RCW recirculating cooling water RI Remedial Investigation RL remediation level ROD Record of Decision T.C.A. Tennessee Code Annotated TCE trichloroethene TDEC Tennessee Department of Environment and Conservation v

U.S.C. United States Code VOC volatile organic compound g/L microgram per liter vi

Covenant Deferral Request for the Proposed Title Transfer of the Former K-33 Area at the East Tennessee Technology Park, Oak Ridge, Tennessee Introduction The U.S. Department of Energy (DOE) is proposing to transfer land designated as the Former K-33 Area, hereafter also referred to as the Property, at the East Tennessee Technology Park (ETTP) Heritage Center in Oak Ridge, Tennessee, by deed, and is submitting this Covenant Deferral Request (CDR) pursuant to Section 120(h)(3)(C) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, and applicable U.S. Environmental Protection Agency (EPA) guidance. The Oak Ridge Reservation (ORR), which includes the ETTP Heritage Center, was placed on the National Priorities List (NPL) in November 1989. Environmental investigation and cleanup activities are continuing at ETTP in accordance with CERCLA, the National Contingency Plan (NCP), and the Federal Facility Agreement (FFA). The FFA was entered into by the DOE-Oak Ridge Office (ORO), EPA Region 4, and the Tennessee Department of Environment and Conservation (TDEC) in 1991. The FFA establishes the schedule and milestones for environmental remediation of the ORR.

The proposed property transfer is a key component of the Oak Ridge Performance Management Plan (ORPMP) for cleanup of the ORR.

The Property is proposed as the potential site for new facilities to be used for office space, industrial activities, or other commercial uses. The Property consists of one contiguous tract of land, consisting of a total of approximately 136.4 acres, located in the northwestern portion of the Heritage Center. Figure 1 shows the location of the Former K-33 Area within the Heritage Center. The boundaries of the Property are shown on Figure 2. No buildings are included in the proposed transfer. Although Buildings K-892 and K-892-Y are excluded from the transfer (see Figure 2), the property beneath the two buildings will be included in the transfer because the soil beneath the buildings is located in an exposure unit (EU) [see Section 1.0] that meets the requirements of the Zone 2 Record of Decision (ROD) for industrial use. When Buildings K-892 and K-892-Y undergo demolition, the subsurface features will be characterized after completion to ensure that the soils meet the Zone 2 ROD remediation levels (RLs). Documentation confirming such will be provided for EPA and TDEC review and approval in the annual Low-Risk/Low-Complexity Facilities Phased Construction Completion Report (PCCR) and possibly an addendum to the Fiscal Year (FY) 2007 PCCR for Zone 2. Once final remediation is completed and approved, the area could be released for beneficial reuse.

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Figure 1. Location Map of the Former K-33 Area Within the ETTP Heritage Center 2

Figure 2. The Former K-33 Area Transfer Footprint 3

DOE continues to be responsible for any contamination that is present on the Property at the time of transfer but found after the date of transfer. The deed transferring the Property contains various restrictions and prohibitions on the use of the Property that are subject to enforcement pursuant to State Law Tennessee Code Annotated (T.C.A.)

68-212-225 and real property law. These restrictions and prohibitions are designed to ensure protection of human health and the environment.

CERCLA requires that when the Federal government transfers property where hazardous substances have been stored for one year or more, released, or disposed of, the deed must contain two covenants warranting that 1) all remedial actions necessary to protect human health and the environment from hazardous substances remaining on the property have been taken before the date of the property transfer [CERCLA 120(h)(3)(A)(ii)(I)], and 2) any additional remedial action found to be necessary after the date of the property transfer shall be conducted by the United States [CERCLA 120(h)(3)(A)(ii)(II)]. The deed will contain this last covenant. However, in certain circumstances, EPA, with concurrence of the Governor of the State in which the facility is located, may defer the covenant set forth in CERCLA 120(h)(3)(A)(ii)(I) warranting all remedial actions necessary to protect human health and the environment have been taken, if EPA determines that the property is suitable for transfer based upon the following findings:

1. The property is suitable for transfer for the use intended by the transferee, and such use is consistent with protection of human health and the environment;

2. The deed proposed to govern the transfer between the United States and the GRANTEE of the property contains the Response Action Assurances described in Section 120(h)(3)(C)(ii) of CERCLA with regard to a release, or threatened release, of a hazardous substance for which the Federal agency is potentially responsible, including:

a) Provide for any necessary restrictions on the use of the property to ensure the protection of human health and the environment; b) Provide that there will be restrictions on use necessary to ensure that required remedial investigations (RIs), response actions, and oversight activities will not be disrupted; c) Provide that all necessary response actions will be taken, and identify the schedules for investigation and completion of all necessary response actions as approved by the appropriate regulatory agency; and d) Provide that the Federal agency responsible for the property subject to transfer will submit a budget request to the Director of the Office of Management and Budget that adequately addresses schedules for investigation and completion of all necessary response actions, subject to congressional authorizations and appropriations.

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3. The Federal agency requesting deferral has provided notice by publication in a newspaper of general circulation in the vicinity of the property, of the proposed transfer and of the opportunity for the public to submit, within a period of not less than 30 days after the date of notice, written comments on the suitability of the property for transfer; and

4. The deferral and the transfer of property will not substantially delay any necessary response action at the property.

These findings are intended to ensure that there is a sound basis for the proposed transfer because the intended reuse of the property does not pose an unacceptable risk to human health or the environment. As stated in CERCLA Section 120(h)(3)(C)(iv), all statutory obligations required of, and rights granted to, a Federal agency remain the same, regardless of whether the property is transferred subject to a covenant deferral.

Ecological Impacts Potential impacts to ecological receptors can occur from either:

1. impacts that are associated with residual contamination of environmental media that result in risk to ecological receptors; or

2. impacts to ecological receptors from development and/or operational activities occurring after transfer of the property.

Potential impacts to ecological receptors from the first category will be addressed as ecological risk in the final ETTP Sitewide ROD, which will also evaluate risk from groundwater and surface water to human and ecological receptors. DOE will remain responsible, regardless of property ownership, for providing the necessary response actions to address any residual contamination on the property to ensure protection of ecological receptors, and any efforts needed will be coordinated with EPA and TDEC under the FFA.

Potential impacts to ecological receptors from development and/or operational activities resulting from property transfer were addressed in the Environmental Assessment for Transfer of Land and Facilities within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee, DOE/EA-1640, October 2011 (DOE 2011), which resulted in a Finding of No Significant Impact. Exhibit B of the Quitclaim Deed, included in Section 6.2 of the CDR, restricts development of the property to the industrial, commercial, and recreational uses evaluated in the Environmental Assessment.

Additionally, following transfer, the new property owner is still subject to regulatory requirements such as storm water management, wetlands protection, and Clean Air Act compliance. Finally, adverse environmental impacts to existing ecological receptors would be limited because construction activities would primarily occur within previously disturbed areas.

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DOE hereby requests that EPA Region 4 determine, with the concurrence of the Governor of the State of Tennessee, that the Property is suitable for transfer and that the CERCLA Section 120(h)(3)(A)(ii)(I) covenant may be deferred. The deferral is necessary because an ETTP Sitewide ROD addressing groundwater, surface water, sediment, and ecological risk has not been approved. Once the deferral request is granted, DOE will proceed to convey the Property while DOE continues to complete all necessary remediation at the ETTP site in accordance with CERCLA, the NCP, and the FFA. In accordance with CERCLA Section 120(h)(3)(B), this CDR pertains solely to the transfer of this Property, or any portion thereof, to a non-Potentially Responsible Party.

1.0 Property Description As shown in Figure 1, the Former K-33 Area is located in the northwestern portion of the Heritage Center and consists of approximately 136.4 acres. General descriptions of the Property are contained in the Environmental Baseline Survey (EBS), which is included as Attachment A and summarized below. The Heritage Center, located in the far western end of the ORR, within the city of Oak Ridge, is the site of the former Oak Ridge Gaseous Diffusion Plant (ORGDP) where uranium enrichment operations occurred from the mid-1940s until the mid-1980s. Prior to construction of the ORGDP, the area was used as farmland. When the ORGDP was active, the Former K-33 Area was predominately used for the production of enriched uranium using the gaseous diffusion process. Portions of the area were also used for the distribution of electricity to power the uranium enrichment operations, and pumping and treatment of recirculated cooling water. The Heritage Center is now transitioning from DOE to private ownership as cleanup from prior DOE operations progresses. Hence, some of the Heritage Center is owned by DOE, while some has been transferred to the private sector.

As shown in Figure 2, the Former K-33 Area consists of one contiguous tract of land.

The boundaries of the Property along with EU boundaries are shown in Figure 3.

Figure 4 is an aerial photograph of the Property as viewed from the northwest. The Property is bounded by the K-1065 Area and former K-1066-K Cylinder Storage Yard (EUs Z1-50, Z1-51, and Z1-52) and vacant land to the west; vacant land north of the West Perimeter Road right-of-way (ROW); Building K-31 and a buffer zone to the south; and Poplar Creek to the east. The Property surrounds a tract consisting of approximately 19.9 acres in the northwestern portion of the footprint that has already been transferred. This transferred property is the location of the former K-792 Switchyard.

The Property includes:

land on which the demolished Building K-33 was located (includes EU Z2-04 and most of EU Z2-05);

vacant land just north of the former K-33 building location where the K-892-J cooling tower was located (includes part of EU Z2-01);

land that has not been previously transferred surrounding the former K-792 Switchyard (includes the balance of EU Z2-02);

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P PO RE RC LA EK K-792 FORMER K-33 BUILDING K-31 K-762 LEGEND: Z2-19 EAST TENNESSEE TECHNOLOGY PARK OAK RIDGE, TENNESSEE Figure 3. Exposure Units in the Former K-33 Area (aerial photo circa 2010) 7

8 Figure 4. Former K-33 Area, as Viewed from the Northwest, circa 2014

land where the former K-762 Switchyard was located (includes most of EU Z2-03);

mostly vacant land to the east of the former K-33 building location where the K-892-G&H cooling towers were located and where the K-892 Recirculating Water and Fire Water Pumphouse and the K-892-Y Recirculating Water Sludge Softener Facility and Maintenance Shop remain (includes all of EU Z2-08); and mostly vacant land and the K-861 Cooling Tower basin located to the east of the K-31 building (includes all of EU Z2-09).

All of the acreage proposed for transfer (approximately 136.4 acres) is contained within Zone 2 and includes all, or portions of, seven EUs. The transfer footprint occupies portions of two EUs where the balance of the EU has already been transferred: Z2-01 and Z2-02. In the two remaining EUs that are also only partially included in the transfer footprint (Z2-03 and Z2-05), the balance that is not included in the K-33 building transfer is area needed for the decontamination and decommissioning (D&D) of the K-31 building.

No buildings are included in the proposed transfer. The existing unpaved and improved roadways are included in the proposed transfer. Buildings K-892 and K-892-Y (Figure 2) are excluded from the proposed transfer because they are currently awaiting D&D activities.

Because the soil and slab underlying Buildings K-892 and K-892-Y are part of an EU with an approved no further action (NFA) determination, the land underlying these buildings is included in the footprint of this EBS/CDR. The soils beneath K-892 and K-892-Y were not sampled under the DVS, but they were included within the scope of the PCCR for EU Z2-08. Sampling locations were established during Data Quality Objectives workshops with EPA and TDEC approval, which did not identify a need for samples beneath these facilities. However, as an additional measure for ensuring that no contamination above established Zone 2 remediation levels (RLs) remains, when demolition of K-892 and K-892-Y is complete, the subsurface soils and structures, if any, will be characterized to ensure that the soils and subsurface structures meet the Zone 2 ROD RLs. Documentation confirming such will be provided for EPA and TDEC review and approval in the annual Low-Risk/Low-Complexity Facilities PCCR and possibly an addendum to the Fiscal Year 2007 PCCR for Zone 2. The land underlying Bldgs. K-892 and K-892-Y will not be transferred until either the above PCCR or addendum has been approved by EPA and TDEC. A buffer of approximately 50 feet around the buildings would be retained until these aspects were completed.

Remedial actions performed within the Former K-33 Area have included removal of the K-33 slab and selected areas of sub-slab soils, and other associated actions, as follows:

removal of the K-33 basement walls and backfill with crushed stone; 9

location, removal, and disposal of nine contaminated floor drains in the operations floor; grouting of 75 electrical manholes and 16 oil/water separators (within the slab footprint);

demolition and removal of reinforced concrete slab; survey of sub-slab soils and utilities to identify hot spots; removal and disposal of contaminated soil and utilities; removal and disposal of the sub-slab wire grounding grid; grading of sub-slab soil; and placement of topsoil, seed, and mulch.

These actions are described in the Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2590&D1), November 2012 (approved) [DOE 2012]. This PCCR constitutes the final report for the remedial action described in Section 5.0 of the PCCR.

In addition, the former K-861, K-892-G/-H, and K-892-J Cooling Towers were removed as part of the Cooling Tower Demolition project, which was completed in 1997.

Under this project the cooling tower structures were demolished, and the K-892-G/-H cooling tower basins were also demolished. The rubble from demolition of the K-892-G/-H basins was used as fill, which was then covered with clean soil and vegetated. The K-861 and K-892-J Cooling Tower Basins were left in place after removal of all sediment from the basins and steam cleaning of the internal surfaces of the basins. TDEC recommended NFA for the facilities addressed under the Cooling Tower Demolition Project on March 4, 1998, and EPA concurred with No Further Investigation (NFI) for the study area addressed under the Cooling Tower Demolition Project on March 23, 1998.

2.0 Nature/Extent of Contamination In accordance with CERCLA Section 120(h), reviews of government records, title documents, and aerial photographs; visual and physical inspections of the Property and adjacent properties; and interviews with current and former employees were conducted to identify any areas on the Property where hazardous substances and petroleum products or their derivatives were stored for one year or more, known to have been released, or disposed of. Additionally, radiological survey and environmental sampling were 10

conducted under the Dynamic Verification Strategy (DVS) process to assess the condition of the Property. The summary details of these evaluations, including discussions of the nature and extent of contamination, are presented in Section 6.0 of the EBS Report (Attachment A). The findings of the evaluations are summarized in subsections 2.1 through 2.2 below.

EPA guidance allows for the transferring Federal agency to demonstrate why a completed RI or Risk Assessment is not necessary before the land is transferred. Risk evaluations using the regulator-approved DVS process were prepared by the Environmental Management (EM) Program for soils in all of the EUs in which the Former K-33 Area is located. The results of these risk evaluations for soils indicate that all risks, doses, and hazards are within acceptable levels of EPAs target risk range for an industrial worker; hence, neither an RI nor a Risk Assessment was necessary. The evaluations are summarized in Section 4.0.

The EM Program has divided approximately 800 acres at ETTP into 44 EUs under the Zone 2 ROD for the purposes of evaluating risk and making remedial decisions for soil for unrestricted industrial use to a depth of 10 feet and to remove sources of groundwater contamination. However, as stated in the ROD, It is DOEs intent to limit restrictions for Zone 2. Using the data from the industrial use scenario, DOE will evaluate all of Zone 2 for unrestricted use. In areas in which the information indicates there is little chance for unacceptable contamination, restrictions will not be imposed.

The Former K-33 Area is located in seven Zone 2 EUs (Figure 2). The Property includes all of EUs Z2-04, Z2-08, and Z2-09, and portions of EUs Z2-01, Z2-02, Z2-03, and Z2-05. The balance of EUs Z2-01 and Z2-02, which is not included in the transfer footprint, has already been transferred under an approved CDR in 2010. The balance of EUs Z2-03 and Z2-05, which is not included in the transfer footprint, is needed to support D&D of the K-31 building.

The Former K-33 Area EBS report (Attachment A) relies upon regulator-approved documentation in the PCCRs (listed below) for the foundational information about the potential for surface and subsurface soil and subsurface structure contamination:

Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2317&D2), December 2006 (approved) [DOE 2006]

(addresses EUs Z2-02 and Z2-09).

Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2723&D2), March 2008 (approved) [DOE 2008] (addresses EUs Z2-01, Z2-03, and Z2-08).

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Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2590&D1), November 2012 (approved) [DOE 2012].

The PCCRs were prepared as part of the EM DVS, a decision document supporting NFA under an industrial land use risk scenario in the EUs that include the Former K-33 Area. This process is in use for remedial action decision-making across the ETTP Heritage Center. Based on the DVS results, EPA and TDEC concurrence for the FY 2006 PCCR for Zone 2 (addresses EUs Z2-02 and Z2-09) was received on February 26, 2006, and December 8, 2006, respectively. EPA and TDEC concurrence for the FY 2007 PCCR for Zone 2 (addresses EUs Z2-01, Z2-03, and Z2-08) was received on June 9, 2008, and February 6, 2008, respectively, and EPA and TDEC approval of the PCCR addressing EUs Z2-04 and Z2-05 was received on February 6, 2013, and February 8, 2013, respectively.

Although a groundwater plume has not been identified in the subsurface of the Former K-33 Area, volatile organic compounds (VOCs) have been sporadically detected in some of the wells on the Property. Currently, groundwater contamination present in Zone 2 will be addressed in the ETTP Sitewide ROD.

2.1 Evaluation of Potential Contamination in the Former K-33 Area The results of the evaluation are as follows:

The EUs in which the Former K-33 Area is located were assessed under a Work Plan (2007) prepared and approved according to the DVS protocol. The Work Plan was approved by EPA and TDEC on December 7 and 13, 2007, respectively. All verified and validated data used to make regulatory decisions have been placed in the Oak Ridge Environmental Information System database and are available for review. The locations of soil samples collected under the DVS within the EUs included in the transfer footprint are shown in Figure 5. These data were deemed sufficient to reach NFA decisions for soils under an industrial land use scenario for all of the EUs (Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09) included in the Former K-33 Area.

An evaluation was conducted of the potential impact on the DVS decisions due to the difference in transfer footprint and EU boundaries. This evaluation indicated that for the four EUs partially included in the transfer footprint, the balance of EUs Z2-01 and Z2-02 has already been transferred under an approved CDR, and the NFA decisions for these partial EUs are appropriate based on an evaluation of the weighted average calculations as presented in the PCCRs. For the remaining two EUs (Z2-03 and Z2-05), which include areas needed for the K-31 building D&D activities, the NFA decisions as documented in the PCCRs are also appropriate based on an evaluation of the weighted average calculations as presented in the PCCRs.

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PL PO AR E

CR EK K-792 FORMER K-33 BUILDING K-31 K-762 LEGEND:

EAST TENNESSEE TECHNOLOGY PARK OAK RIDGE, TENNESSEE Figure 5. Former K-33 Area DVS Sample Locations 13

Buildings K-892 and K-892-Y are in EU Z2-08, which has an approved NFA for soils, slabs, and subsurface structures. Building K-892 is the Recirculating Water and Fire Water Pump House and is planned for demolition. The building contains recirculating water pipelines that are posted as containing internal contamination.

Building K-892-Y is the Recirculating Water Sludge Softener Facility and Maintenance Shop and is also planned for demolition. Because the soil and slab underlying Buildings K-892 and K-892-Y are part of an EU with an approved NFA, DOE will proceed with including the property as part of the footprint of this EBS/CDR. However, the property would not be transferred until approvals were given by EPA and TDEC that the soils meet the Zone 2 ROD requirements after building demolition (evaluated in the annual Low-Risk/Low-Complexity Facilities PCCR and possibly an addendum to the FY 2007 PCCR for Zone 2). A buffer of approximately 50 feet around the buildings would be retained until these aspects were completed.

The K-892-J Cooling Tower Basin is located in EU Z2-01. The former K-892-J Cooling Tower was demolished in 1996, but the basin remains in place. Sludge from the basin was also removed and steam cleaning of the internal surfaces of the basin was conducted as part of the cooling tower demolition project completed in 1997.

One DVS four-point composite of surface samples (0 to 0.5 feet below ground surface [bgs]) was collected in the K-892-J Cooling Tower Basin and analyzed for metals, polychlorinated biphenyls (PCBs), and radionuclides during March 2006.

This was followed by sampling four DVS systematic grid sample locations (0 to 0.5 feet bgs and 0.5 to 2 feet bgs) in the basin and analyzing the samples for PCBs.

Although the PCB average RL was exceeded in the composite sample and both depth intervals of the systematic grid samples, based on a weighted average calculation, the PCB average RL was not exceeded across EU Z2-01, and the EU received concurrence for NFA.

The K-861 Cooling Tower Basin is located in EU Z2-09. The former K-861 Cooling Tower was demolished in 1996, but the basin remains in place. Sludge from the basin was also removed and steam cleaning of the internal surfaces of the basin was conducted as part of the cooling tower demolition project completed in 1997. Two biased DVS soil samples were collected during March 2006 from the K-861 Cooling Tower Basin. Both samples were collected from 9 to 10 feet bgs and were analyzed for metals and radionuclides. There were no maximum or average RL exceedances in either sample. Plans are for this basin to be filled prior to transfer of the property.

Several VOCs, including 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1-dichloroethene (DCE), 1,2-DCE, chloroform, and trichloroethene (TCE), have been historically detected at bedrock well BRW-067 located within the Former K-33 Area.

Although VOCs have been detected at this well, a groundwater plume has not been defined because these compounds have only been detected in this single, isolated bedrock well and detections have been inconsistent over the 10 years of monitoring 14

conducted at this well. TCE concentrations at BRW-067, which is 61 feet deep, have ranged from 63 micrograms per liter (µg/L) in 1990 to 13 µg/L in 1998, which is the most recent sampling event with analysis for VOCs for this well. Although concentrations of TCE exceed the EPA drinking water maximum contaminant level (MCL) at well BRW-067, VOCs are generally absent from groundwater in the other monitoring wells in the study area.

2.2 ETTP Soil and Groundwater Contamination As of the end of FY 2013, of the approximately 2,200 acres within Zones 1 and 2 at the Heritage Center, about 1,870 acres had been characterized for soil media (surface and subsurface). To support characterization activities, over 2,100 samples have been collected and evaluated by EM. These activities have resulted in NFA determinations under an industrial land use risk scenario for approximately 1,540 of the 2,200 acres within the two zones.

The Heritage Center has known contaminated groundwater plumes (consisting mainly of VOCs with concentrations ranging from a high of approximately 15 parts per million in the far northeast portion of the site to non-detectable concentrations) that resulted from past operations. No contaminated groundwater plume has been identified beneath the Former K-33 Area. The nearest identified plume is located approximately 1,000 feet northwest of the Property. Although available potentiometric maps indicate that this plume may be considered to be upgradient of the Property, groundwater data and dye tracer studies indicate that the predominant flow direction of this plume is to the southwest and not southeastward toward the Property. However, there is uncertainty concerning groundwater flow paths due to the karst conditions in the bedrock underlying most of the Heritage Center.

2.2.1 Vapor Intrusion Sampling Because of the occurrence of VOCs in known contaminated groundwater plumes at the Heritage Center, EPA Region 4 recommended investigation of the potential vapor intrusion pathway for site facilities that are targeted for transfer under a CERCLA Section 120(h) CDR. In accordance with EPAs Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soils (EPA 530-F-02-052, November 2002), and through consultation with representatives from EPA Region 4, ORO developed a process to evaluate the potential for vapor intrusion at ETTP Heritage Center properties to be transferred to the private sector. This process calls for development of vapor intrusion investigation and control requirements on a case-by-case basis, dependent upon conditions present at properties being transferred. The Quitclaim Deed condition addressing this for the former K-33 Area is found in Section 6.2, Condition (11). The Oak Ridge Office of Environmental Management (OREM), EPA Region 4, and TDEC have agreed that vapor intrusion will be addressed in the ETTP final Sitewide ROD.

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2.3 ETTP Building Demolition Activities As part of the cleanup of the Heritage Center, numerous facilities are being demolished. Facilities that formerly occupied portions of the Former K-33 Area, but have been demolished, include the following:

K-892-G Cooling Tower and Basin K-33 Process Building K-892-H Cooling Tower and Basin K-33/K-31 Tie Lines K-892-J Cooling Tower K-791-N Switch House K-762 Switchyard K-791-S Switch House K-891 Raw Water Pumphouse K-791 Control House K-896-A, -B, and -C Clarifier Tanks K-861 Cooling Tower K-862 RCW Pump House K-861-J Cooling Tower K-862-S Acid Tank Demolition planning and execution for other Heritage Center facilities will include appropriate work controls that will be utilized to minimize and control the release of hazardous substances during demolition activities, such that surrounding properties and persons are protected.

3.0 Analysis of Intended Land Use During the Deferral Period The Property proposed for transfer is situated within an industrial site (Heritage Center) that is being transitioned from the federal ownership to private ownership. As stated previously, the Heritage Center is being remediated to allow for its conversion to a brownfield mixed-use commercial and industrial park. During the deferral period, the Property may be left as it is, or facilities may be constructed on it as allowed by the deed.

Risk evaluations were performed to determine whether the Property is acceptable for industrial uses by the private sector. The results of the risk evaluations are presented in Section 4.0 below.

4.0 Risk Evaluation Results Zone 2 remedial action objectives (RAOs) were developed by the DVS to support the future industrial use of the Heritage Center. Therefore, remediation criteria were designed for the protection of the future industrial worker.

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The decision rules established in the DVS were based on one or more of the following criteria:

exceedance of a maximum RL at any location, exceedance of an average RL across the EU, unacceptable future threat to groundwater, or unacceptable cumulative excess lifetime cancer risk (ELCR) of > 1 x 10-4 and hazard index (HI) >1 across the EU.

The NCP preamble (55 Federal Register 8716, March 8, 1990) describes the process used to establish the remediation goal for environmental media as consisting of a two-step approach. First, an individual lifetime excess cancer risk of 10-6 is used as a starting point for establishing remediation goals for the risks from contaminants at specific sites. The second step involves consideration of a variety of site-specific or remedy-specific factors, which enter into the determination of where, within the risk range, the cleanup standard for a given contaminant will be established. The factors considered in the development of the Zone 2 ROD and subsequent steps in the implementation of the ROD, such as the DVS, included an acceptable cumulative risk level of 10-4, which is the upper bound of the EPA acceptable risk range. From the Zone 2 ROD (Section 1.4): The remedial action objective (RAO) for Zone 2 includes the following: Protect human health under an industrial land use to an excess cancer risk at or below 1 x 10-4. Zone 2 RAOs were developed by the DVS to support the future use of 10-4 cumulative ELCR across the EU as one of the decision criteria. To achieve the RAO, constituent-specific cleanup goals were developed. Per the NCP preamble, these cleanup goals are to be based on a risk level of 10-6 for individual constituents unless site-specific or remedy-specific factors exist to suggest modifications are appropriate. For the Zone 2 Interim ROD, these factors include the following:

Site-Specific Exposure Factors exposure of the industrial worker is limited to soil-related pathways only (multiple media exposures are not applicable to this scenario), and the limited contaminant of concern (COC) list indicates that the potential for a large number of remedial goal exceedances was considered unlikely in the ROD, allowing for a higher risk level for each COC considered, while still achieving a cumulative risk <10-4. However, the ROD indicates that additional COCs were identified in four EUs within Zone 2, and additional COCs may be identified from the characterization sampling to be conducted for a wide range of potential contaminants.

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Remedy-Specific Technical Factors remedial goals for particular COCs were generated at a risk level >10-5 due to cost prohibitiveness and impracticality of remediation to a lower concentration, and remedial goals for particular COCs were revised to reflect consideration of elevated background levels.

Incorporation of the factors above provided RLs that reflect the RAO of achieving a cumulative human health risk that will not exceed 10-4 for a given EU or FFA site.

Table 4.1 summarizes the decisions and final status summary under an industrial land use risk scenario for the EUs in which the Former K-33 Area is located.

The risk evaluation results (found in Section 7.0 of Attachment A of this CDR) indicate that all risks, doses, and hazards are considered within acceptable levels of EPAs target risk range for an industrial worker.

DOE also considered risks from exposure to the larger Heritage Center site through evaluation of a roving worker who may access multiple areas across the site. The roving worker scenario is considered to be applicable to all of the Heritage Center, including transferred areas.

This evaluation was based on certain assumptions, including (1) the worker will not be exposed to areas that are inaccessible due to radiological or other controls, such as fences or other barriers, or postings that prevent casual entry by a worker at a nearby building; and (2) there are no hotspots of contamination at the Heritage Center that are accessible to these workers.

The results of the roving worker risk screen, which used all available data, show that risks/hazards are within EPAs acceptable risk range. As a part of the ongoing Heritage Center cleanup, soil data and confirmatory sampling data continue to be collected and have been used to support numerous NFA decisions under an industrial land use risk scenario. Cleanup and confirmatory sampling work are ongoing. The EUs associated with the Former K-33 Area have obtained NFA concurrence from EPA and TDEC.

Therefore, the Property is suitable for transfer for the intended industrial use.

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Table 4.1. Risk Evaluation Results for the Former K-33 Area Decision rule evaluationa Final Avg Risk status EU Associated FFA sites Max RL RL Risk GW evaluation decisiona NFA for Z2-01 K-892-J Cooling Tower NFA NFA NFA NFA Passes soils K-792 Switchyard soils K-897-N Oil Containment Structure NFA for Z2-02 K-897-P Oil Containment NFA NFA NFA NFA Passes soils Structure K-1206-E Sandblasting Residue K-762 Switchyard Soils K-762 Valve Vaults 1 and 2 K-897-L Oil Containment NFA for Z2-03 NFA NFA NFA NFA Passes Structure soils K-897-M Oil Containment Structure NFA for Z2-04 None NFA NFA NFA NFA Passes soils NFA for Z2-05 None NFA NFA NFA NFA Passes soils K-33 Recirculating Cooling Water (RCW) Lines Leak Site K-892-G Cooling Tower Basin NFA for Z2-08 NFA NFA NFA NFA Passes K-892-H Cooling Tower soils Basins K-897-A Oil Containment Structure K-31 Recirculating Cooling Water Leak Sites K-861 Cooling Tower Basin NFA for Z2-09 K-897-C Oil Containment NFA NFA NFA NFA Passes soils Structure K-897-D Oil Containment Structure a

Decision rule, risk evaluation, and final status information are from:

Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2317&D2 (DOE 2006).

Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2723&D2 (DOE 2008).

Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2590&D1 (DOE 2012).

Avg = average Max = maximum EU = exposure unit. NFA = No Further Action.

FFA = Federal Facility Agreement. RL = remediation level.

GW = groundwater.

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4.1 Vapor Intrusion Pathway Evaluation VOCs have been detected in groundwater, soil, and soil vapors in the K-33 Area at low concentrations. The limited data available do not indicate a high likelihood of the presence of subsurface vapor sources (e.g., groundwater volatile organic plume) in the K-33 Area that pose a significant threat of vapor intrusion. At other locations across the Heritage Center, soil vapor samples have been taken from approximately 95 sample locations from within 13 buildings and 2 land parcels, with a total of 191 soil vapor samples collected, including buildings over known groundwater plumes. Based on these soil vapor sample results, a complete vapor intrusion pathway does not exist for any of the buildings that have been sampled.

5.0 Response/Corrective Action and Operation and Maintenance Requirements The FFA parties divided the Heritage Center into two smaller operating units to facilitate site CERCLA decisions. The two operating units are Zone 1 (outside the main plant area) and Zone 2 (inside the main plant). The Former K-33 Area is located within Zone 2. The Zone 1 Interim ROD was signed in October 2002, and the Zone 2 Interim ROD was signed on April 19, 2005; remedial actions for soils and sources of groundwater contamination in Zone 1 were completed in FY 2011, with the exception of the former K-770 Scrap Yard and the K-720 Fly Ash Pile, and are underway for Zone 2.

Located within some of the Zone 1 and Zone 2 EUs are sites designated as requiring special attention because they were listed in the FFA as having the potential for contamination. These FFA sites have been the focus of several remedial actions across the Heritage Center. Table 5.1 summarizes the regulatory status of the EUs in which the Former K-33 Area is located.

OREM plans to address the key sources to the contaminated groundwater plumes at the site to ensure protection of human health and the environment. The decision for groundwater will also be made through the CERCLA process. The final Sitewide ROD will include groundwater and any needed remedial action. Any measures planned to address groundwater contamination are not expected to impact the Property.

In order to ensure the protection of human health by preventing exposure to contaminants present in the groundwater, the deed for the Property prohibits the extraction, consumption, exposure, or use, in any way, of the groundwater without the prior written approval of DOE, EPA, and TDEC. Additional provisions are included to prevent inadvertent exposure to contaminated groundwater and/or any contamination that could possibly be present in the soils. Such provisions include requiring adherence to applicable Federal, State, and local laws with respect to any development of the property.

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Table 5.1. Former K-33 Area Components and Summary of CERCLA Decisions Geographic area Group PCCR EU (acreage)a Associated FFA sitesb Decision K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-01 K-892-J Cooling Tower NFA for soils for Zone 2 Soils, (28.3 acres) approvedc Slabs, and Subsurface Structures at ETTP K-31/33 Area K-31/K-33 FY 2006 PCCR Z2-02 K-792 Switchyard Soils NFA for soils for Zone 2 Soils, (29.7 acres) (outside transfer footprint) approvedd Slabs, and K-897-N Oil Containment Subsurface Structure (outside transfer Structures at footprint)

ETTP K-897-P Oil Containment Structure (outside transfer footprint)

K-1206-E Sandblasting Residue (outside transfer footprint)

K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-03 K-762 Switchyard Soils NFA for soils for Zone 2 Soils, (14.9 acres) K-762 Valve Vaults 1 and 2 approvedd Slabs, and Subsurface K-897-L Oil Containment Structures at Structure ETTP K-897-M Oil Containment Structure K-31/33 Area K-31/K-33 2012 PCCR for Z2-04 None NFA for soils EUs Z2-04 and (25.1 acres) approvede Z2-05 at ETTP K-31/33 Area K-31/K-33 2012 PCCR for Z2-05 None NFA for soils EUs Z2-04 and (22 acres) approvede Z2-05 at ETTP K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-08 K-33 Recirculating Cooling NFA for soils for Zone 2 Soils, (24 acres) Water (RCW) Lines Leak approvedc Slabs, and Site Subsurface K-892-G Cooling Tower Structures at Basin ETTP K-892-H Cooling Tower Basins K-897-A Oil Containment Structure 21

Table 5.1. Former K-33 Area Components and Summary of CERCLA Decisions (cont.)

Geographic area Group PCCR EU (acreage)a Associated FFA sitesb Decision K-31/33 Area K-31/K-33 FY 2006 PCCR Z2-09 K-31 Recirculating Cooling NFA for soils for Zone 2 Soils, (21.5 acres) Water Leak Sites approvedd Slabs, and K-861 Cooling Tower Basin Subsurface Structures at K-897-C Oil Containment ETTP Structure K-897-D Oil Containment Structure a

Component names and acreages as provided in the PCCRs listed in Sect. 3.2.

b No FFA sites are located within the former K-33 building EUs.

c NFA approved from the Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2723&D2 (DOE 2008).

d NFA approved from the Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2317&D2 (DOE 2006).

e NFA approved in the Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2590&D1 (DOE 2012).

EBS = Environmental Baseline Survey Report. FFA = Federal Facility Agreement.

CERCLA = Comprehensive Environmental Response, NFA = no further action.

Compensation, and Liability Act of 1980. PCCR = Phased Construction Completion Report.

EU = exposure unit.

Vapor intrusion will be addressed in the final Sitewide ROD, which will include groundwater. Any new building or structure built on the Property that will be occupied must be designed and constructed to minimize potential exposure of workers to VOC vapors using EPA/625/R-92/016 (June 1994), Radon Prevention in the Design and Construction of Schools and Other Large Buildings, as guidance, as noted in Section 6.1 and in the Quitclaim Deed, Condition (11).

6.0 Contents of Deed/Transfer Agreement This section includes the Quitclaim Deed clauses and/or exhibits required to enable EPAs determination under an industrial land use risk scenario that the property is suitable for transfer. The following items are included:

a. Notice - A copy of the notice as required by CERCLA Section 120(h)(1) and (3) and in accordance with regulations set forth at 40 Code of Federal Regulations (CFR) Part 373;

b. Covenant - A copy of the covenant warranting that any additional remedial action found to be necessary after the date of transfer shall be conducted by the United States as required by CERCLA Section 120(h)(3)(A)(ii)(II);

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c. Access - A copy of the clause that reserves the United States access to the property in any case in which an investigation, response, or corrective action is found to be necessary after the date of transfer as required by CERCLA Section 120(h)(3)(A)(iii); and

d. Response Actions Assurances - A copy of the response action assurances that must be included in the deed or other agreement proposed to govern the transfer as required under CERCLA Section 120(h)(3)(C)(ii).

6.1 Background Introduction The Quitclaim Deed for the Property includes various prohibitions and restrictions intended to ensure that the proposed transfer is protective of human health and the environment.

The deed prohibits the use of the Property in a manner inconsistent with the land use assumptions of industrial use. Industrial use is defined by the Zone 2 ROD as potential exposure to surface conditions, for 2,000 hour0 days <br />0 hours <br />0 weeks <br />0 months <br />s/year for 25 years. In addition, the deed specifically prohibits residential use, which includes residential housing, elementary or secondary schools, or any child care facility or childrens playground. Also, in accordance with the National Environmental Policy Act (NEPA) Environmental Assessment (EA), Transfer of Land and Facilities within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee, DOE/EA-1640, dated October 2011, industrial uses considered are the permitted principal uses and uses requiring a Board of Zoning Appeals permit in the City of Oak Ridge Zoning Ordinance for IND-1, IND-2, and IND-3, Industrial Districts. Additional commercial and recreational uses are those included in the Zoning Ordinance for UB-2, Unified General Business Districts.

Although the vapor intrusion potential, as described in Section 4.1, is not high, uncertainty remains due to the limited data available. Therefore, the deed requires that any buildings newly constructed on the Property, which are intended to be occupied by workers eight hours or more per scheduled work day or by public visitors, will be designed and constructed to minimize exposure to VOC vapors. To ensure the protection of human health from exposure to contaminants in groundwater plumes throughout the site, the deed prohibits the GRANTEE from extracting, consuming, or using, in any way, the groundwater underlying the Property without the prior written approval of DOE, EPA, and TDEC. Finally, the deed requires compliance with all applicable Federal, State, and local laws and regulations with respect to any development on the Property.

The deed excerpts shown in Section 6.2, below, are from the draft Quitclaim Deed for the Property.

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6.2 Selected Excerpts from the Draft Quitclaim Deed Related to Protection of Human Health and the Environment THIS QUITCLAIM DEED, made between the UNITED STATES OF AMERICA, its successors, transferees and assignees, hereinafter referred to collectively as the GRANTOR, acting by and through the Secretary of the Department of Energy, under and pursuant to the powers and authority contained in Section l61g of the Atomic Energy Act of 1954, as amended (42 United States Code [U.S.C.] § 2201(g)), and the GRANTEE. The GRANTOR and GRANTEE have agreed that in order to assure enforceability of land use restrictions, this Quitclaim Deed, including all of its exhibits, shall serve as a Notice of Land Use Restrictions pursuant to Tennessee Code Annotated 68-212-225, having all the effectiveness and enforceability of such Notice. By acceptance of this Quitclaim Deed or any rights hereunder, the GRANTEE, for itself, its successors and assignees forever, agrees that the transfer of all the Property transferred by this Deed is accepted subject to all terms, obligations, restrictions, reservations, covenants and conditions set forth in this Quitclaim Deed and all exhibits hereto, and that these terms, obligations, restrictions, reservations, covenants and conditions shall run with the land.

(1). It is the intent of the GRANTEE to utilize the property conveyed herein for purposes consistent with the mission of economic development for the community. All activities and development of the real property by the GRANTEE shall be consistent with the requirements contained within Exhibits B and D to this Quitclaim Deed.

(9). The GRANTEE shall comply with all applicable Federal, State, and local laws and regulations with respect to any present or future development of the property herein conveyed, including, but not limited to, those laws and regulations which govern sewage disposal, facilities, water supply, and other public health requirements.

(10). All structures, facilities, and improvements requiring a water supply shall be required to be connected to an appropriate regulatory approved water system for any and all usage. GRANTEE covenants not to extract, consume, expose, or use in any way the groundwater underlying the property or water from any streams or ponds located on the property without the prior written approval of the GRANTOR, the United States Environmental Protection Agency and the Tennessee Department of Environment and Conservation.

(11). The GRANTEE covenants and agrees that any buildings intended to be occupied by workers eight hours or more per scheduled work day or by public visitors will be designed and constructed to minimize exposure to volatile organic contaminant vapors. The GRANTOR and the GRANTEE will determine the necessary building design features to minimize this potential exposure using EPA/625/R-92/016 (June 1994), Radon Prevention in the Design and Construction of Schools and Other Large Buildings, as guidance.

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(15). The GRANTOR acknowledges that the Oak Ridge Reservation has been identified as a National Priorities List Site under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, as amended. The GRANTEE acknowledges that the GRANTOR has provided it with a copy of the Oak Ridge Reservation Federal Facility Agreement (FFA), effective on January 1, 1992, and relevant amendments entered into by the GRANTOR, Region 4 of the United States Environmental Protection Agency, and the Tennessee Department of Environment and Conservation. The GRANTEE agrees that should any conflict arise between the terms of such agreement as it presently exists or may be amended and the terms of this Quitclaim Deed, the terms of the FFA will take precedence.

An Addendum addressing requirements of Section l20(h)(3), including response action assurances and use restrictions, is attached as Exhibit D and is made a part of this Quitclaim Deed and all provisions of that Addendum are fully incorporated herein.

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EXHIBIT A TO QUITCLAIM DEED SURVEY PLAT SHOWING THE TRANSFER FOOTPRINT 27

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HERITAGE CENTER K-33 AREA Beginning at a point located west of West Perimeter Road, said point also located at Tennessee Grid coordinate N=586,325.11 and E=2,440,308.71; Thence the follow calls along a line west of West Perimeter Road North 35° 12 13 West, 41.34 feet to a point; Thence North 52° 21 10 West, 123.84 feet to a point; Thence North 69° 01 30 West, 200.38 feet to a point; Thence North 59° 57 11 West, 65.69 feet to a point; Thence North 52° 48 42 West, 80.51 feet to a point; Thence North 50° 11 21 West, 78.67 feet to a point; Thence North 23° 43 51 West, 245.92 feet to a point; Thence North 20° 34 42 West, 90.41 feet to a point; Thence North 12° 25 41 West, 63.01 feet to a point; Thence North 07º 50 08 West, 100.64 feet to a point; Thence North 06º 19 48 West, 242.66 feet to a point; Thence North 06° 18 52 West, 1548.12 feet to a point; Thence North 13° 48 17 East, 89.81 feet to a point; Thence North 23° 01 22 East, 118.68 feet to a point; Thence North 31° 56 34 East, 114.56 feet to a point; Thence North 40° 06 49 East, 100.20 feet to a point; Thence North 46° 56 05 East, 77.55 feet to a point; Thence North 49° 42 30 East, 521.07 feet to a point; Thence North 54° 16 27 East, 160.76 feet to a point; Thence North 59° 52 49 East, 67.67 feet to a point; Thence North 67° 48 03 East, 63.45 feet to a point; Thence North 76º 43 01 East, 69.19 feet to a point; Thence North 85º 37 46 East, 71.83 feet to a point; Thence North 82° 09 12 East, 179.27 feet to a point; Thence South 87° 04 36 East, 103.53 feet to a point; Thence North 71° 40 26 East, 22.83 feet to a point; Thence North 58° 34 15 East, 53.10 feet to a point; Thence North 39° 24 11 East, 40.61 feet to a point; Thence North 21° 28 00 East, 41.73 feet to a point; Thence North 06° 33 23 East, 48.50 feet to a point; Thence North 14° 07 24 West, 68.22 feet to a point; Thence North 12° 55 17 West, 111.57 feet to a point; Thence North 07° 16 17 East, 94.30 feet to a point; Thence North 23º 52 47 East, 113.53 feet to a point; Thence North 43º 17 51 East, 146.51 feet to a point; 9/28/2015 31

Thence North 51° 11 05 East, 99.42 feet to a point; Thence North 77° 09 41 East, 100.91 feet to a point; Thence South 82º 46 38 East, 92.04 feet to a point; Thence crossing said West Perimeter Road South 69º 45 22 East, 151.64 feet to a point; Thence South 48° 27 40 East, 40.26 feet to a point; Thence following along the West side of Poplar Creek at the Normal Winter Pool Level a distance of 4212 feet to a point, said point also located at Tennessee Grid coordinate N=586,970.54 and E=2,442,718.58; Thence South 83° 40 12 West, 910.39 feet to a point; Thence North 06° 25 09 West, 728.88 feet to a point; Thence South 84° 51 37 West, 193.42 feet to a point; Thence North 54° 07 31 East, 49.61 feet to a point; Thence South 83° 40 12 West, 29.45 feet to a point; Thence North 59° 50 19 West, 13.25 feet to a point; Thence North 06° 19 48 West, 54.21 feet to a point; Thence South 83° 40 12 West, 1178.72 feet to a point; Thence South 05° 28 00 East, 83.97 feet to a point; Thence South 64º 33 30 West, 43.92 feet to a point; Thence South 06º 19 39 East, 117.84 feet to a point; Thence South 83° 40 12 West, 59.58 feet to a point; Thence South 06° 19 48 East, 56.11 feet to a point; Thence South 79° 53 00 West, 36.29 feet to a point; Thence South 06° 19 48 East, 454.76 feet to a point; Thence South 83° 40 12 West, 16.44 feet to a point; Thence South 06° 05 57 East, 124.15 feet to a point; Thence North 83° 40 12 East, 99.45 feet to a point; Thence North 52º 58 50 East, 11.76 feet to a point; Thence North 83º 00 23 East, 43.18 feet to a point; Thence South 07° 36 22 East, 45.27 feet to a point; Thence South 10° 43 15 West, 39.96 feet to a point; Thence South 27° 22 05 West, 313.98 feet to the Point of Beginning; Containing 137.33 acres, more or less Acreage does not include lots 1 and 2 as recorded in Plat Book E, Page 294 in the Roane County Registers office.

Lots 1 and 2 Beginning at a point in the Eastern Right of Way of West Perimeter Road, and being adjacent to building K-1065, said point is located at Tennessee State Plane Coordinate N= 587,688.01 and E=2,439,678.86; Thence North 06° 25 49 West, 995.08 feet to a point; Thence South 69º 31 21 East, 32.94 feet to a point; 9/28/2015 32

Thence North 00º 26 09 East, 38.98 feet to a point; Thence South 86° 04 44 West, 34.07 feet to a point; Thence along a curve to the right having a radius of 613.92 feet with a chord bearing and distance of North 22º 38 24 E, 596.12 feet for an arc distance of 622.44 feet to a point; Thence North 51° 41 19 East, 407.39 feet to a point; Thence South 06° 41 13 East, 653.39 feet to a point; Thence South 83º 53 03 West, 159.14 feet to a point; Thence South 06º 16 17 East, 225.90 feet to a point; Thence South 83° 25 06 West, 44.85 feet to a point; Thence South 06° 18 14 East, 743.52 feet to a point; Thence South 83º 27 19 East, 205.49 feet to a point; Thence South 06º 12 29 East, 204.80 feet to a point; Thence South 22° 07 03 East, 9.70 feet to a point; Thence South 06° 09 16 East, 27.40 feet to a point; Thence South 18º 32 44 West, 10.10 feet to a point; Thence South 21º 05 47 West, 58.24 feet to a point; Thence South 83° 47 34 West, 375.59 feet to a point; Thence North 52° 39 38 West, 253.75 feet to a point; Thence North 72º 37 14 West, 50.35 feet to the Point of Beginning; Containing 19.91 acres, more or less.

Bearing and distances are based on Tennessee State Plane Grid Coordinate System NAD83 (88). 88 refers to the year which Martin Marietta Energy Systems established GPS monuments on the Oak Ridge Reservation using values published in 1986 by the Tennessee Department of Transportation which tied the GPS monuments to the Tennessee Geodetic Reference Network System.

Prepared by: Barge Waggoner Sumner and Cannon Inc.

Dated : November 11, 2014 BWSC File: 34011-00 9/28/2015 33

EXHIBIT B TO QUITCLAIM DEED NATIONAL ENVIRONMENTAL POLICY ACT (NEPA)

ALLOWABLE USES OF THE REAL PROPERTY In accordance with the Environmental Assessment Transfer of Land and Facilities within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee, DOE/EA-1640, dated October 2011, industrial uses considered are the permitted principal uses and uses requiring a Board of Zoning Appeals permit in the City of Oak Ridge Zoning Ordinance for IND-1, IND-2, and IND-3, Industrial Districts.

Additional commercial and recreational uses are those included in the Zoning Ordinance for UB-2, Unified General Business Districts. These uses could include, but are not limited to, the following:

Light to heavy processing, manufacturing, assembly, and fabrication plants, excluding slaughtering plants and paper or pulp mills.

Public utility facilities with or without storage yards.

Storage; wholesaling; distribution; warehousing, including shipping and freight terminals; and related facilities.

Research and testing facilities, including renewable and advanced energy, industrial, and scientific research laboratories that include incidental pilot plant processing operations.

Administrative, technical, and professional offices.

Storage facilities for materials such as, but not limited to, salt, switch grass, other alternative fuel feedstocks, coal, coke, building material, sand, gravel, stone, lumber, and enclosed or open storage of construction contractors equipment and supplies.

Waste treatment facilities, including nonhazardous waste recycling centers, hazardous and mixed waste treatment for shipment to off-site storage and disposal facilities.

Recycling operations, including those for radioactively contaminated materials and those associated with metal and other material treatment and processing.

Bulk oil and gasoline storage or bulk storage of natural gas.

Power plants, including renewable energy generation.

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Broadcasting, publishing, recording, and telecommunications.

Food processing such as dairy products, bakery products, and beverage products (all activities are conducted in an enclosed building).

Airports (additional NEPA review would be necessary).

Commercial uses, including restaurants and service establishments such as: gas station/convenience store, bank, post office/mailing/shipping center, copying/printing, bulk cleaning and laundry, cold storage lockers, furniture and carpet warehouses, car washes, equipment and appliance repair, vehicle service centers, etc.

Public recreation uses such as parks, historic legacy interpretation, playgrounds, golf courses, athletic fields, and stadiums.

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EXHIBIT D ADDENDUM TO QUITCLAIM DEED CERCLA SECTION 120(h) REQUIREMENTS AND ASSURANCES A. In accordance with CERCLA Section 120(h)(1) and (3) and 40 Code of Federal Regulations Section 373, and based on a complete search of agency files, the GRANTOR provides notice that:

A contaminated groundwater plume has not been identified in the subsurface of the Former K-33 Building and Surrounding Area. Trichloroethene (TCE) has historically been detected above the maximum contaminant level (MCL) in the easternmost portion of the Property but has not been analyzed in samples since 1998. The presence of TCE in groundwater is considered a release of a hazardous substance on the Property.

The deed (Condition 10) includes a prohibition for use of the groundwater, in any way, unless such use is approved in advance by the GRANTOR, the U.S. Environmental Protection Agency (EPA), and the Tennessee Department of Environment and Conservation (TDEC). Additional provisions are included to prevent inadvertent exposure to contaminated groundwater and/or any contamination that could possibly be present in the soils. Such provisions include requiring the GRANTEE to adhere to applicable Federal, State, and local laws with respect to any development of the Property (Condition 9). Further information on the nature and extent of groundwater contamination is contained in Section 4.3 of the Environmental Baseline Survey (EBS)

Report issued in September 2015, which is incorporated by reference into this Quitclaim Deed as Exhibit F. Said Report shall be placed within the permanent historical realty audit files of the U.S. Department of Energy-Oak Ridge Office (DOE-ORO), within the GRANTORs Oak Ridge Office Information Center, and within the GRANTEES realty records. The Oak Ridge Office of Environmental Management (OREM) plans to address the key sources to the contaminated groundwater plumes at the site to ensure protection of human health and the environment. The decision for groundwater will be made through the CERCLA process. The final Sitewide Record of Decision (ROD) will include groundwater and any needed remedial action to address contaminated groundwater in Zone 2.

B. The GRANTOR warrants that any additional response action found to be necessary after the date of transfer for contamination on the Property existing prior to the date of this transfer will be conducted by the United States. The obligation of the United States under this warranty will be limited to the extent that a response action is required by an act or omission of any GRANTEE which either a) introduces new contamination or b) increases the cost or scope of the required response action by negligently managing any contamination present on the Property at the time of the initial transfer by the United States.

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C. The GRANTOR reserves a right of access to all portions of the Property for environmental investigation, remediation, or other corrective action. In the event the GRANTOR must access the Property, the GRANTOR must provide notice to and coordinate access with the GRANTEE, or its successors, and any authorized occupants of the Property. Any such entry, including such activities, responses, or remedial actions, shall be coordinated with the GRANTEE or its successors, assignees, and tenants and shall be performed in a manner which minimizes, to the extent practicable, interruption with the GRANTEEs activities on the Property. The GRANTORs right to access the Property shall be exercisable in any case in which a response action or corrective action is found to be necessary by the GRANTOR, or applicable regulatory authority, after the date of conveyance of the Property, or in which the GRANTOR determines access is necessary to carry out a response action or corrective action on adjoining property. Pursuant to this reservation, the United States and its officers, agents, employees, contractors, and subcontractors shall have the right (upon reasonable notice to and coordination with the GRANTEE or the then-owner and any authorized occupant of the Property) at the direction of the GRANTOR to enter upon the Property and (1) conduct investigations and surveys, including but not limited to, sample collection, drilling, data and record compilation, and other activities related to environmental investigation; and (2) to carry out any other response and/or corrective actions as required or necessary under CERCLA and other applicable authorities, including but not limited to installation and operation of groundwater monitoring and/or restoration wells, and any treatment of hazardous substances or materials required under CERLCA and other applicable authorities.

D. The GRANTEE covenants that the Property shall not be used or developed in a manner inconsistent with the land use assumptions of industrial use contained in approved applicable RODs. The GRANTEE covenants that it will not at any time cause or allow any portion of the Property to be used for any residential housing, any elementary or secondary school, or any child care facility or childrens playground.

E. The GRANTEE covenants that it will not at any time cause or allow any other use or disturbance of any portion of the Property located more than 10 feet below ground surface level, without having first obtained authorization from DOEs Excavation/Penetration Permit Program.

F. The GRANTEE covenants that it will not inhibit or hinder the GRANTOR from required remedial investigations, response actions, or oversight activities including, but not limited to, properly constructing, upgrading, operating, maintaining, and monitoring any groundwater treatment facilities or groundwater monitoring on the Property or adjoining property. Further, the GRANTEE covenants that it will not tamper with or willfully destroy any monitoring wells or other monitoring or remediation systems that may be located in the vicinity of the Property.

G. The GRANTOR shall submit on an annual basis, through established channels, appropriate budget requests to the Director of the Office of Management and Budget that adequately address those agreed upon schedules for investigation and completion of all 38

necessary response actions required by the Federal Facility Agreement (FFA) until such time that all necessary remedial action has been taken. The actual amount available for such activities is subject to congressional authorizations and appropriations.

H. When all response actions necessary to protect human health and the environment with respect to any substance remaining on the Property on the date of transfer have been taken, the United States shall execute and deliver to the transferee an appropriate document containing a warranty that all such response actions have been taken.

I. After notice and coordination with the GRANTEE as set forth in Item C, above, any response actions taken by the GRANTOR will be in accordance with schedules developed and included in Appendix E and J of the FFA for the Oak Ridge Reservation, approved by the GRANTOR, Region 4 of the EPA, and TDEC. The GRANTOR will take all necessary action to remediate the East Tennessee Technology Park (ETTP),

including groundwater contamination where applicable. The schedules for the investigation and completion of all necessary response actions as approved by the appropriate regulatory agency addressing Zone 2 of the ETTP Heritage Center, and the groundwater (to be addressed in the final Sitewide ROD), are set forth in the following milestones which are subject to adjustment through amendment pursuant to Chapter XVIII, Scoping Work Priorities of the FFA:

Zone 2 Final Record of Decision Interim Record of Decision - April 19, 2005 Completion of Remedial Actions - 2025 (Appendix J, 02/27/14)

Final Sitewide Record of Decision Final Record of Decision- 2023 (proposed 2014)

Completion of Remedial Actions - TBD 39

EXHIBIT F TO QUITCLAIM DEED ENVIRONMENTAL BASELINE SURVEY REPORT The Environmental Baseline Survey Report for the Former K-33 Area was issued in September 2015, by the GRANTOR. Said Report is incorporated by reference to this Quitclaim Deed as noted in Exhibit D, Paragraph A.

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7.0 Responsiveness Summary The Covenant Deferral Request (CDR) and Environmental Baseline Survey (EBS) were issued in draft form for regulator review on August 8, 2014. A written response was received from the Tennessee Department of Environment and Conservation (TDEC) on September 8, 2014, stating that they did not have any comments on the draft documents. Comments were received from the U.S. Environmental Protection Agency (EPA) Region 4 on September 5, 2014. Additional comments were received from EPA following the Public Review period on November 4, 2014.

7.1 Regulator Comments Covenant Deferral Request

1. Section 1.0 - Please provide a metes and bounds survey of the (K-33) property to be transferred. If any property within the boundary will be retained, please ensure that it is clearly described as excluded from the scope of this CDR (see CDR Comment 3).

DOE RESPONSE: The metes and bounds survey of the K-33 property has been provided in the Draft for Public Review and will be in the Final for Concurrence version of the CDR.

2. Page 5, Section 1.0 - This section needs to expound on the description of the cooling tower basins footprint to correlate better with the information in the Environmental Baseline Survey regarding the remaining subsurface structures that were remediated prior to the Zone 2 ROD.

DOE RESPONSE: An additional discussion of the cooling tower basins, including the remedial actions conducted, has been added to this section.

Additional information on historical and DVS sampling of the basins has also been added to Section 2.1 of the CDR and Sections 4.1 and 6.1 of the EBS.

3. Page 6, Paragraph 4 - The soils beneath Buildings K-982 and K-982-Y have not been evaluated as part of the approved PCCRs but deferred until building demolition. Although there is a DOE commitment stated in the CDR and EBS, EPA emphasizes in these comments that soil sampling will occur prior to transfer and that the CERCLA Phased Construction Completion Report addressing the Z2-08 EU will be modified and submitted for review and approval by EPA and the State, in accordance with the modification procedures in the Federal Facility Agreement. Sampling must be conducted in accordance with the Zone 2 ROD and DVS protocols. Please ensure that the HQ for mercury in the DVS screening process is 1 and not 1.9. The 1.9 is a typographical error in the currently approved document.

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The action required prior to transfer identifies known contamination in K-982 and plans to implement removal action demolition activities of both of the Z2-08 buildings and Z2 ROD characterization activities beneath these structures.

DOE RESPONSE: The soils beneath K-892 and K-892-Y were not sampled, but they were included within the scope of the PCCR for EU Z2-08. Buildings K-892 and K-892-Y are located in an area of EU Z2-08 that was classified during DQO scoping as a Class 3 soil unit (SU) and sampling was not required at these locations. A Class 3 SU walkover assessment was conducted in Z2-08 as required under the DVS. In addition, facility assessments were conducted on K-892 and K-892-Y according to DVS protocols. Based on the Class 3 SU walkover assessment and the K-892 and K-892-Y facility assessments, it was concluded that biased sampling was not required at these two facilities. DVS characterization of EU Z2-08 is reported in the Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2723&D2). The results of the Class 3 SU walkover assessment and the facility assessments are discussed in the EU Z2-08 Technical Memorandum, which is included as Appendix C of the referenced PCCR. However, as an additional measure for ensuring that no contamination above established remediation levels (RLs) remains, samples will be collected in the soils beneath these two facilities after completion of D&D activities. These results will be evaluated against RLs and the results of the evaluation presented in the annual Low-Risk/Low-Complexity Facilities PCCR, and possibly an addendum to the FY 2007 PCCR for Zone 2.

4. Page 13, Bullet #1 - Confirm the basins do not contain contaminants above the remediation levels stated in Zone 2 ROD. The basin bottoms were not evaluated in 1996 under the DVS program as the ROD was not signed until 2005.

DOE RESPONSE: Cooling towers were remediated in the late 1990s, but DVS sampling did not occur until later as part of the 2006 and 2007 PCCRs. The DVS included sampling of sediment from cooling tower basins and those samples passed Zone 2 ROD remediation levels. The CDR has been revised to more clearly describe these sampling results.

5. Page 16, bullet #1, second entry - The text is not clear and its purpose in the CDR is not clear. The limited number of COCs stated in the ROD recognized that additional COCs may be identified.

DOE RESPONSE: This section is providing background on the risk evaluation process used in the ROD to develop the remedial goals for soils specified in the Zone 2 ROD. The second entry has been revised to indicate that the ROD acknowledges that additional COCs may be identified during characterization of Zone 2.

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6. Exhibit D - This language does not appear to expressly require engineered controls to reduce exposures to indoor vapor intrusion.

DOE RESPONSE: The Quitclaim Deed requirement that buildings be designed to minimize exposure to vapors for occupied buildings is presented in Section 6.2, Selected Excerpts from the Draft Quitclaim Deed Related to Protection of Human Health and the Environment; Item (11). EXHIBIT D, which is one of several Exhibits included with the Quitclaim Deed, contains the deed language for other applicable CERCLA 120(h) Requirements and Assurances.

7. Section 6.1 - This section states that the deed specifically prohibits residential uses, including childrens playgrounds. However, Exhibit D is not consistent.

Please correct this matter.

DOE RESPONSE: Item number D. of EXHIBIT D states that The GRANTEE covenants that it will not at any time cause or allow any portion of the Property to be used for any residential housing, any elementary or secondary school, or any child care facility or childrens playground.

Environmental Baseline Survey

1. EBS Executive Summary, p. xii and Section 3.2.1, p. 3 The first two bullets should include the relevant EUs as provided in the third bullet.

DOE RESPONSE: The bullets represent the titles of the PCCRs, but the EUs addressed by the individual PCCRs have been added to the first two bullets.

2. EBS Executive Summary, p. xiv - The second bullet lists EUs in which only a portion of the EU is being transferred under this CDR. The subsequent bullets describe each of these EUs except for EU Z2-01.

DOE RESPONSE: A bullet describing EU Z2-01 has been added to this section.

3. EBS Executive Summary, p. xv - The final paragraph of the bullet describing Building K-982 and K-982-Y identifies a portion of Z2-08 that will require further assessment and subsequent modification of the scope of this CDR (i.e.,

Attachment A EBS or supporting PCCR). The status of the EBS supporting the CDR for these portions of the parcels is acknowledged as incomplete and therefore creates confusion regarding the status of the CDR for this specific property.

DOE RESPONSE: The discussion on the K-892 and K-892-Y buildings has been revised as these structures will be removed prior to transfer. The soils data obtained following demolition of these buildings will be evaluated in the annual 45

Low-Risk/Low-Complexity Facilities PCCR, or possibly an addendum to the FY 2007 PCCR for Zone 2.

4. Page xvii, Bullet #3 - For further clarification, the approved no further action decision does not include sampling or evaluation of soils beneath K-892 and K-892-Y. The document states sampling will be conducted to characterize soils after demolition. This bullet needs modification to clarify the fact of no sampling of these soils conducted as part of the decision although this should have been identified in the D&D PCCR. Also see page 3-2.

DOE RESPONSE: This bullet has been revised to indicate that the soils beneath the buildings were not considered to be a data need in the DQO process for the Zone 2 ROD. Soil samples will be collected at the completion of demolition of these buildings to ensure the soils meet the remedial action objectives of the ROD and have not been impacted by the demolition activities. The sample results will be reported in the annual Low-Risk/Low-Complexity Facilities PCCR, or possibly an addendum to the FY 2007 PCCR for Zone 2.

5. Page 4-1, K-892-J Cooling Tower Basin - Basins need to be sampled to ensure consistency with Zone 2 ROD requirements. Remedial action to remove sludge occurred prior to Zone 2 ROD. Therefore, need to reference the results of the basin sampling activity to identify residual risk of remaining contamination.

DOE RESPONSE: Cooling towers were remediated in the late 1990s, but DVS sampling did not occur until later as part of the 2006 and 2007 PCCRs. DVS included sampling of sediment from cooling tower basins and those samples passed Zone 2 ROD remediation levels. The EBS has been revised to more clearly show these sampling results.

6. Page 4-5, K-892 Pumphouse - The RCW lines are included in the RAD monitoring program but risk may be less than Zone 2 ROD trigger. This information needs to be clarified in the EBS for the areas covered under the RAD monitoring program, or clarify how these lines will be addressed in a manner similar to the building.

DOE RESPONSE: A discussion of how the RCW lines will be addressed has been added to the EBS and CDR. DOE Order 458.1 requires that the RCW lines be evaluated for residual radioactive material prior to release of the Property.

This evaluation will result in a determination that the RCW lines meet the requirements of the Order (which are more protective than the Zone 2 ROD requirements), or that the lines be isolated to eliminate the potential exposure pathway, before transfer of the property.

7. Page 4-6, Section 4.2 - EUs Z1-49 and Z1-54 have ecological concerns that were not addressed as part of the soils remedial action that should be described in the EBS.

46

DOE RESPONSE: Ecological concerns were specifically identified as not being addressed under the Zone 2 ROD. However, ecological concerns will be addressed in the ETTP Sitewide ROD. Additional discussion of the approach to address terrestrial ecological concerns has been added to the CDR and EBS. DOE will remain responsible, regardless of property ownership, for providing the necessary response actions to address any residual contamination on the Property to ensure protection of ecological receptors, and any efforts needed will be coordinated with EPA and TDEC under the Federal Facility Agreement.

8. Page 4-7, EU Z1 Remove s on subsection title.

DOE RESPONSE: The s in the subsection title has been deleted.

9. Section 5 - Outfalls are not identified in the EBS. The document should include a map illustrating the locations of the outfalls where surface water and sediment migration of contaminants remain to be evaluated as part of Z2 remedial assessment activities. This will provide more information regarding contamination potential.

DOE RESPONSE: Surface water and sediment will be addressed in the ETTP Sitewide ROD. The storm drain outfalls are now shown on Figure 6.1.

10. Page 5-1, Paragraph 6 - Will the RCW lines be removed? If so, the document needs to describe this planned activity and update the CDR accordingly in a manner similar to the K-982 buildings and the CDR comments.

DOE RESPONSE: See response to Comment 6.

11. Page 5-3, Figure 5.2 - Will the relic electrical infrastructure be removed or sampled? If not, please provide information on previous sampling activities. The document may need to describe this planned activity and update the CDR accordingly in a manner similar to the K-982 buildings and the CDR comments.

DOE RESPONSE: These concrete pedestals and the soils surrounding these pedestals have been evaluated under the DVS, and the EU where these are located has received an approved NFA.

12. Page 5-4, Figure 5.4 - Will the filled concrete pits be removed or sampled? If not, please provide information on previous sampling activities. The document may need to describe this planned activity and update the CDR accordingly in a manner similar to the K-982 buildings and the CDR comments.

DOE RESPONSE: These pits were sampled under the DVS process and passed the risk screen, as documented in the PCCR, and the EU received an approved NFA. The pits were filled to eliminate the safety risk, which also prevents potential exposure to any residual constituents in the pits.

47

13. Page 6-3, Section 6.4, Paragraph 1 - Please rephrase the latter portion of activity description as the present text alludes that data was not provided in the PCCR.

The Technical Memorandum (TM) associated with this area does include the sampling information in the Appendix. The first part of the PCCR summarizes the information. The TM is the more thorough description of the planning, sampling, and data evaluation portion of the PCCR. Also, please see Section 6.5 as this comment also addresses a similar concern.

DOE RESPONSE: The statement that the data were not included has been deleted.

14. Page 6-5, Paragraph 1 - Please correct the reference to the 10 ft depth. It is incorrectly identified as 10-ft3.

DOE RESPONSE: The superscript 3 has been deleted from this text.

15. Page 7-1, Paragraph 2, Bullet #1, second entry - The text is not clear and its purpose in the EBS is not clear. The limited number of COCs stated in the ROD recognized that additional COCs may be identified.

DOE RESPONSE: See response to CDR Comment 5.

16. Section 7 - Revise this section of the EBS to address ecological receptors within the scope of the K-33 CDR. Include a figure of the K-33 area to show the boundaries of the ecological habitat area. Also, provide a brief summary of additional activities planned to address ecological risk as part of the ongoing Zone 1/2 activities.

DOE RESPONSE: See response to EBS Comment 7. The existing wetlands are shown on Figures 1.2 and 6.1. The ETTP Sitewide ROD will address the need for actions to protect ecological receptors, which are not addressed by the Zone 2 ROD.

17. Appendix C - The data is presented in a table without explanation of the column headings or any interpretation. The data was the characterization of soils for post-slab removal.

DOE RESPONSE: An introductory section has been added to Appendix C to explain that the data presented represent samples collected above and beyond the DVS, and will explain the column headings and significance of the data.

48

Post-Public Review Comments

1. Rewrite EBS Appendix D to be consistent with actual field activities. Modify the EBS text on page D-3 to reflect the actual soil sampling activities as identified in the referenced table which includes collection of at least 26 soil samples.

DOE RESPONSE: The introduction to Appendix D has been revised to include additional information on the sampling performed for collection of the samples whose results are presented in the Appendix D table.

2. EPA Comment 1 (9/5/14) - The parcels metes and bounds survey was planned to be included in the public review draft. It appear that it may not have been included in this redline version of the document. It will need to be provided to EPA as noted in the DOE response above.

DOE RESPONSE: The parcel metes and bounds survey will be included in the Final for Concurrence documents provided to EPA and TDEC.

3. The Table of Contents should consider listing the Exhibits included under Section 6.2 to avoid any potential confusion with the list of Attachments to the CDR.

DOE RESPONSE: A listing of Exhibits has been included under Section 6.2 in the TOC.

4. Please make the following changes to Exhibit D:

a. Zone 1 is not relevant to this parcel, consider deleting this schedule.

b. On or before finalization of this CDR, DOE will submit for EPA approval Appendix E milestones for the submittal of Zone 2 Removal Action documentation for the D&D of Buildings K-892 and K-892-Y and include those milestones in Exhibit D to the CDR.

c. Under the heading Final Sitewide Record of Decision, revise the title of the 2023 milestone to delete for groundwater because this ROD will include other media (e.g., surface water, sediment).

d. Revise the final ROD milestone to 2022 to correspond with the current Appendix J (2/27/14). NOTE: Appendix J is undergoing a revision that will change the date to 2023; however, that revision is not currently final. It is recommended that the milestones included in Exhibit D identify the date of Appendix E or J in which the milestones were obtained.

e. The land use control portion of the Zone 2 Interim ROD Remedial Action has not been finalized in a post-ROD Primary Document. DOE provided a draft land use control implementation plan (LUCIP) describing how these land use control remedial actions, implemented in a land use control Secondary 49

Document, would be approved and incorporated into a Zone 2 Remedial Action Primary Document. Unfortunately, this document has been delayed pending the outcome of finalization of the Bethel Valley LUCIP that also has been delayed. On or before finalization of this CDR, the following actions will be taken:

i. DOE submit for EPA approval an Appendix E milestone for the submittal of a Zone 2 D1 LUC Remedial Design Primary Document. Include this milestone in Exhibit D and in FFA Appendix E to show the plan to complete the description of how the land use control portion of the Zone 2 Remedial Action will be implemented. EPA requests the milestone be set to September 30, 2015. This milestone may be for the submission of a Secondary Document LUCIP if a subsequent milestone for modifying a Primary Document to include the LUCIP is provided.

ii. DOE include in the Final for Concurrence CDR Appendix D, Paragraph I (and the deed) the schedules for the investigation and completion of all necessary response action as approved by the appropriate regulatory agency, i.e., the milestone(s) as approved in Appendix E, as described above (4.e.i).

DOE RESPONSE: The following changes have been made to Exhibit D of the CDR and appropriate sections of the CDR and EBS:

a. The Zone 1 schedule has been deleted.

b. The D&D of Buildings K-892 and K-892-Y will be documented in the annual Low-Risk/Low-Complexity Facilities PCCR. This document is planned to be submitted in December of 2015.

c. Under the Final Sitewide Record of Decision heading, the phrase for groundwater has been deleted from the title of the 2023 milestone.

d. The final ROD milestone date of 2023 has not been revised as incorporation of this date into Appendix E of the FFA is imminent. The dates of the Appendix E or J milestones have been included in Exhibit D where appropriate.

e. i) A milestone for a LUCIP for Zone 2 will be proposed by DOE, either as an erratum to the ETTP Remedial Action Report (RAR) Comprehensive Monitoring Plan (CMP). However, this commitment will be established in Appendix E of the FFA, but will not be included in the CDR or subsequent Deed language. This is consistent with the agreement among the FFA Project Managers to include all long-term stewardship requirements in the RAR CMP and will ensure there is no inconsistency between the CMP and the LUCIP.

50

ii) The schedules for implementation of CERCLA actions will be carried in Appendices E and J of the FFA and DOE does not feel that incorporation of the schedules of the various ROD-related activities in the CDR or Deed language is appropriate.

5. CDR Comment 4 (9/5/14) Response - Revise the final sentence of the response and the document to identify the specific Primary Document that will be provided or modified to report the sample results after demolition of buildings K-892 and K-892-Y.

DOE RESPONSE: The response to EBS Comment #4 and appropriate text in the CDR and EBS have been revised to identify the annual Low-Risk/Low-Complexity Facilities PCCR as the document that will provide the sample results after demolition of Buildings K-892 and K-892-Y.

6. CDR Comment 7 (9/5/14) Response - Revise the response and the final sentence of the first full paragraph of the CDR (p. 5) as follows: DOE will remain responsible, regardless of property ownership, for providing the necessary response actions to address any residual contamination on the property to ensure protection of ecological receptors, and any efforts needed will be coordinated with EPA and TDEC under the Federal Facility Agreement.

DOE RESPONSE: The response to EBS Comment #7 and the appropriate sentences in the CDR and EBS have been revised to include this statement.

7.2 Public Comments The CDR package was available for public review from September 24, 2014, until October 23, 2014, and the availability of the documents for review was announced in three area newspapers and in the online version of one newspaper. No public comments were received.

51

DOE/OR/01-2658 FINAL - CONCURRED ATTACHMENT A Environmental Baseline Survey Report for the Proposed Title Transfer of the Former K-33 Area at the East Tennessee Technology Park, Oak Ridge, Tennessee This document is approved for public release per review by:

G. B. Boroughs Signature on File 8/6/14 ETTP Classification and Information Date Control Office 14-025(E)/092815

LEIDOS, Inc. [formerly part of SCIENCE APPLICATIONS INTERNATIONAL CORPORATION (SAIC)]

contributed to the preparation of this document and should not be considered an eligible contractor for its review.14-025(E)/092815

DOE/OR/01-2658 FINAL - CONCURRED Environmental Baseline Survey Report for the Proposed Title Transfer of the Former K-33 Area at the East Tennessee Technology Park, Oak Ridge, Tennessee Date IssuedSeptember 2015 Prepared by Leidos Oak Ridge, Tennessee under subcontract 30492-BA-RR011 under work release 0034 Prepared for the U.S. Department of Energy Office of Environmental Management URS l CH2M Oak Ridge LLC Managing and Safely Delivering the Department of Energys Vision for the East Tennessee Technology Park Mission under contract DE-SC-0004645 14-025(E)/092815

This report has been prepared by Leidos (formerly part of Science Applications International Corporation [SAIC]) for the sole and exclusive use of URS l CH2M Oak Ridge LLC (UCOR) and the U.S. Department of Energy. Any other person or entity obtaining, using, or relying on this report hereby acknowledges that they do so at their own risk, and that Leidos shall have no responsibility or liability for the consequences thereof. This report is prepared by Leidos in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) 120(h)(1) and (3)(C) requirements.

This report is intended to be used in its entirety. Excerpts, which are taken out-of-context, run the risk of being misinterpreted and are, therefore, not representative of the findings of this assessment. Opinions and recommendations presented in this report apply only to site conditions and features as they existed at the time of the site visit, and those inferred from information observed or available at that time, and cannot be applied to conditions and features of which Leidos is unaware and has not had the opportunity to evaluate.

The results of this report are based on record reviews, site reconnaissance, interviews, and the radiological report reviewed and approved by UCOR. Leidos has not made, nor has it been asked to make, any independent investigation concerning the accuracy, reliability, or completeness of such information.

All sources of information on which Leidos has relied in making its conclusions are identified in Chap. 8 of this report. Any information, regardless of its source, not listed in Chap. 8 has not been evaluated or relied upon by Leidos in the context of this report.14-025(E)/092815 v

CONTENTS FIGURES ..................................................................................................................................................... ix TABLES ...................................................................................................................................................... ix ABBREVIATIONS ..................................................................................................................................... xi EXECUTIVE

SUMMARY

....................................................................................................................... xiii CONCLUSIONS....................................................................................................................................... xvii

1. PROPERTY IDENTIFICATION ...................................................................................................... 1-1

2. TITLE SEARCH................................................................................................................................ 2-1

3. FEDERAL RECORDS SEARCH AND COMPLIANCE

SUMMARY

........................................... 3-1 3.1 FEDERAL RECORDS SEARCH ........................................................................................... 3-1 3.2 REGULATORY

SUMMARY

................................................................................................. 3-2 3.2.1 Background................................................................................................................... 3-2 3.2.2 The EM DVS Protocol and Former K-33 Area ............................................................ 3-5 3.2.3 Actions Taken Within the Former K-33 Area EBS Study Area Exposure Units ......... 3-6

4. PAST AND PRESENT ACTIVITIES ............................................................................................... 4-1 4.1 PAST AND PRESENT ACTIVITIES FOR THE REAL PROPERTY PROPOSED FOR TRANSFER .................................................................................................................... 4-1 4.2 PAST AND PRESENT ACTIVITIES FOR THE ADJACENT PROPERTY ........................ 4-7 4.3 HYDROGEOLOGIC ENVIRONMENT ............................................................................... 4-10

5. RESULTS OF VISUAL AND PHYSICAL INSPECTIONS ............................................................ 5-1 5.1 VISUAL AND PHYSICAL INSPECTIONS OF THE PROPERTY TO BE TRANSFERRED ..................................................................................................................... 5-1 5.2 VISUAL AND PHYSICAL INSPECTION OF ADJACENT PROPERTY ......................... 5-11

6. SAMPLING RESULTS ..................................................................................................................... 6-1 6.1 DATA FOR EU Z2-01 ............................................................................................................. 6-1 6.2 DATA FOR EU Z2-02 ............................................................................................................. 6-1 6.3 DATA FOR EU Z2-03 ............................................................................................................. 6-3 6.4 DATA FOR EU Z2-04 ............................................................................................................. 6-3 6.5 DATA FOR EU Z2-05 ............................................................................................................. 6-5 6.6 DATA FOR EU Z2-08 ............................................................................................................. 6-5 6.7 DATA FOR EU Z2-09 ............................................................................................................. 6-6

7. RISK EVALUATION ....................................................................................................................... 7-1

8. REFERENCES .................................................................................................................................. 8-1 14-025(E)/092815 vii

APPENDIX A REAL ESTATE ACQUISITION LETTER ............................................................... A-1 APPENDIX B STUDY AREA MAP FROM RECORDS SEARCH ................................................. B-1 APPENDIX C PCCR APPROVAL LETTERS .................................................................................. C-1 APPENDIX D LSRS AND ORISE SOIL CHARACTERIZATION DATA POST-SLAB REMOVAL .............................................................................................................. D-1 14-025(E)/092815 viii

FIGURES Fig. 1.1. Location of the proposed Former K-33 Area transfer footprint within the Heritage Center. ...... 1-2 Fig. 1.2. Proposed Former K-33 Area transfer footprint and EU boundaries. ........................................... 1-3 Fig. 1.3. Former K-33 Area, circa 2010. .................................................................................................... 1-4 Fig. 1.4. Former K-33 Area, as viewed from the northeast, circa 2014. .................................................... 1-5 Fig. 1.5. Former K-33 Area, as viewed from the northwest, circa 2014.................................................... 1-6 Fig. 4.1. Demolition of the former K-33 building (EUs Z2-04 and Z2-05). .............................................. 4-3 Fig. 4.2. K-33/K-31 process tie line structure (EUs Z1-06 and Z2-08). .................................................... 4-4 Fig. 4.3. Geologic map of the K-33 and surrounding area EBS study area. ............................................ 4-11 Fig. 5.1. Footprint topography and surface condition of K-762 Switchyard (EU Z2-03).......................... 5-2 Fig. 5.2. Relic electrical infrastructure (EU Z2-03). .................................................................................. 5-3 Fig. 5.3. Concrete transformer pedestals at K-762 Switchyard (EU Z2-03).............................................. 5-3 Fig. 5.4. Filled concrete pits at Synchronous Condenser Buildings (EU Z2-03). ...................................... 5-4 Fig. 5.5. Filled in-ground valve box in K-762 Switchyard, K-761 Switch House and K-31 in background (EU Z2-03). ............................................................................................................... 5-4 Fig. 5.6. Oil skimmer at K-762 Switchyard (EU Z2-03). .......................................................................... 5-5 Fig. 5.7. Former K-33 building footprint condition (EUs Z2-04 and Z2-05). ........................................... 5-6 Fig. 5.8. Gravel and grassy areas at north end of K-33 Building (EUs Z2-01 and Z2-04). ....................... 5-6 Fig. 5.9. Inactive valve pits and valve houses in northern portion of transfer footprint (EU Z2-01). ....... 5-7 Fig. 5.10. Former K-892-J Cooling Tower area in northern portion of transfer footprint (EU Z2-01). .... 5-8 Fig. 5.11. K-892 Pumphouse exterior and interior (EU Z2-08). ................................................................ 5-9 Fig. 5.12. Area outside the K-892 Pumphouse (EU Z2-08)..................................................................... 5-10 Fig. 5.13. K-861 Cooling Tower Basin. ................................................................................................... 5-11 Fig. 5.14. Adjacent area to west showing former K-791 Switch House with Synchronous Condenser Buildings (EU Z2-02). .............................................................................................. 5-12 Fig. 6.1. DVS and sub-slab confirmation sample locations in the Former K-33 Area transfer footprint. ... 6-2 TABLES Table 3.1. Summary of CERCLA decisions for the Zone 2 EUs addressed in this EBS........................... 3-3 Table 4.1. Summary of hydrogeologic conditions at the K-33 study area ............................................... 4-13 Table 7.1. Risk rvaluation results for the Former K-33 Area .................................................................... 7-2 14-025(E)/092815 ix

ABBREVIATIONS Avg average bgs below ground surface BJC Bechtel Jacobs Company LLC CERCLA Comprehensive Environmental Response, Compensation, and Liability Act of 1980 COC contaminant of concern COE U.S. Army Corps of Engineers CROET Community Reuse Organization of East Tennessee D&D decontamination and decommissioning DCE dichloroethene DOE U.S. Department of Energy DQO data quality objective DVS Dynamic Verification Strategy EBS Environmental Baseline Survey ELCR excess lifetime cancer risk EM Environmental Management EPA U.S. Environmental Protection Agency ETTP East Tennessee Technology Park EU exposure unit FFA Federal Facility Agreement HI hazard index IV independent verification kV kilovolt K-33 K-33 Area LSRS Lata-Sharp Remediation Services, LLC Max RL maximum remediation level MCL maximum contaminant level mg/kg milligrams per kilogram NCP National Contingency Plan NFA no further action NFI no further investigation ORAU Oak Ridge Associated Universities OREIS Oak Ridge Environmental Information System ORGDP Oak Ridge Gaseous Diffusion Plant ORO Oak Ridge Office ORR Oak Ridge Reservation PCB polychlorinated biphenyl PCCR Phased Construction Completion Report pCi/g picocuries per gram PCP pentachlorophenol RAO remedial action objective RCRA Resource Conservation and Recovery Act of 1976 RCW recirculating cooling water RL remediation level ROD Record of Decision SU soil unit SVOC semivolatile organic compound SWMU solid waste management unit TCE trichloroethene 14-025(E)/092815 xi

TDEC Tennessee Department of Environment and Conservation TVA Tennessee Valley Authority UCOR URS l CH2M Oak Ridge LLC UF6 uranium hexafluoride VOC volatile organic compound

µg/kg micrograms per kilogram 14-025(E)/092815 xii

EXECUTIVE

SUMMARY

This environmental baseline survey (EBS) report documents the baseline environmental conditions at the U.S. Department of Energys (DOEs) Former K-33 Area, hereafter also referred to as the Property, consisting of approximately 136.4 acres located at the East Tennessee Technology Park (ETTP) Heritage Center (Heritage Center). DOE is proposing to transfer the title of this land for mixed (industrial/commercial) use, consistent with the applicable Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) Records of Decision (RODs) and the Environmental Assessment completed pursuant to the National Environmental Policy Act. This EBS provides a summary of information to support the transfer of this government-owned property at the Heritage Center to a non-federal entity under the requirements of Sect. 120(h) of CERCLA. More specifically, the goal is to obtain a covenant deferral under CERCLA Sect. 120(h)(3)(C).

This EBS for the Former K-33 Area relies upon documentation in the three relevant Phased Construction Completion Reports (PCCRs) for the environmental data evaluation and human health risk evaluation. It summarizes no further action (NFA) determinations that have been approved by the U.S. Environmental Protection Agency (EPA) Region 4 and Tennessee Department of Environment and Conservation (TDEC) for the soils, slabs, and subsurface structures of the Former K-33 Area. The PCCRs used for source information for the proposed transfer are:

Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2317&D2),

December 2006 (approved) [DOE 2006a] (addresses EUs Z2-02 and Z2-09).

Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2723&D2),

March 2008 (approved) [DOE 2008] (addresses EUs Z2-01, Z2-03, and Z2-08).

Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2590&D1), November 2012 (approved) [DOE 2012].

The NFA determinations under an industrial land use risk scenario documented in the referenced PCCRs were reached using the Environmental Management (EM) Programs Dynamic Verification Strategy (DVS) process [Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2224&D2 (DOE 2007a)], a process designed to facilitate real-time decision-making. This process is in use for remedial action decision-making across the Heritage Center, which has been divided into Zone 1 and Zone 2 and further subdivided into Geographic Areas, then Groups, then Exposure Units (EUs). For consistency with the EM nomenclature, this EBS will use the EU as the basis for discussion.

All of the acreage addressed in this EBS (approximately 136.4 acres) is contained within Zone 2 and includes all, or portions of, seven EUs. The Former K-33 Area transfer footprint occupies three Zone 2 EUs in their entirety: Z2-04 (approximately 25.1 acres), Z2-08 (approximately 24 acres), and Z2-09 (approximately 21.5 acres). The transfer footprint occupies portions of two EUs where the balance of the EU has already been transferred: Z2-01 (approximately 21.8 acres) and Z2-02 (approximately 11.7 acres).

In the two remaining EUs that are also partially included in the transfer footprint, the balance of the EUs that is not included in the transfer are areas needed for the decontamination and decommissioning (D&D) of the K-31 building. These EUs are: Z2-03 (approximately 12.8 acres) and Z2-05 (approximately 19.5 acres). For purposes of the Former K-33 Area EBS, information is presented on the land proposed 14-025(E)/092815 xiii

for transfer in its entirety. However, in order to provide context and a tie-in with the status of the EUs, this EBS provides regulatory details for the relevant EUs or partial EUs in Chap. 3 and the results of the risk evaluation in Chap. 7.

The Zone 2 remedial action objectives were developed by the DVS to support the future use of the Heritage Center as a mixed-use commercial and industrial park. Therefore, remediation criteria were designed for the protection of the future industrial worker under the assumption the worker normally would not have the potential for exposure to soils at depths below 10 ft below ground surface.

Accordingly, land use controls have been established to prevent disturbance of soils below 10 ft deep and to restrict future land use to industrial/commercial activities. However, as stated in the ROD, It is DOEs intent to limit restrictions for Zone 2. Using the data from the industrial use scenario, DOE will evaluate all of Zone 2 for unrestricted use. In areas in which the information indicates there is little chance for unacceptable contamination, restrictions will not be imposed.

The DVS process included a detailed records search, which included Federal Government records and title documents. That search has been relied upon for this report. The DVS process and the preparation of this report evaluated aerial photographs that may reflect prior uses, visual and physical inspections of the Property and adjacent properties, and interviews with current and former employees1 involved in the operations on the real Property to identify any areas on the Property where hazardous substances and petroleum products, or their derivatives, and acutely hazardous wastes were stored for one year or more, known to have been released, or disposed of. The following is a summary of the findings of the evaluation that was performed:

The results of the DVS evaluation for EUs Z2-01, Z2-02, Z2-3, Z2-04, Z2-05, Z2-08, and Z2-09, in which the Former K-33 Area EBS footprint is located, show that EUs met the requirements specified for an NFA determination for soils under an industrial land use risk scenario.

An evaluation was conducted of the potential impact on the DVS decisions due to the difference in transfer footprint and EU boundaries. This evaluation indicated that the entire EU boundaries are included within the transfer footprint for EUs Z2-04, EU Z2-08, and Z2-09. Only a portion of the remaining four EUs is included in the transfer footprint with the balance of EUs Z2-01 and Z2-02 having been transferred previously, and the balance of EUs Z2-03 and Z2-05 needed for the K-31 building D&D activities.

EU Z2-01, which is only partially included in the transfer footprint, with the balance of the EU already transferred, included the collection of 10 soil samples under the DVS, which were all collected from the Former K-33 Area transfer portion of the EU. The results of the soil samples indicated the soil in the transfer footprint met the requirements of the Zone 2 ROD for NFA, and the conclusions of the PCCR are valid for this partial EU.

EU Z2-02, which is only partially included in the transfer footprint, with the balance of the EU already transferred, included the collection of 48 soil samples under the DVS. The results of the soil samples indicated the soil in the transfer footprint, met the requirements of the Zone 2 ROD for NFA, and the conclusions of the PCCR are valid for this partial EU.

EU Z2-03, which is also only partially included in the transfer footprint, included six sample results for metals within the EU footprint, and all six are also within the Former K-33 Area EBS footprint.

Three of the six sample results for lead exceeded the screening criterion of hazard index (HI) = 1.

1 UCOR 2012a. Personal communications with Bob Kiser (formerly employed at the East Tennessee Technology Park) in August 2012.14-025(E)/092815 xiv

Two of the three samples were from concrete pits that have subsequently been filled with gravel, which eliminates an exposure pathway. The sample results were evaluated in the PCCR based on a weighted average and found to meet the requirements for NFA for soils under the Zone 2 ROD.

Because the transfer footprint area is different than that of the EU, this weighted average was reevaluated and the results for the transfer footprint were also found to meet the requirements of the Zone 2 ROD for NFA.

EU Z2-05, which is only partially included in the transfer footprint, included sampling of soil around the outside of the K-33 building, prior to demolition of the building; sampling of soil through the concrete slab prior to slab removal, but after demolition of the building; and sampling of the underlying soil following removal of the slab. Soil samples collected from EU Z2-05 at the completion of D&D and remediation activities indicated the soils met the requirements of the Zone 2 ROD for NFA.

Buildings K-892 and K-892-Y are in EU Z2-08, which has an approved NFA for soils, slabs, and subsurface structures. Building K-892 is the Recirculating Water and Fire Water Pump House and is planned for demolition. The building contains recirculating water pipelines that are posted as containing internal contamination. Building K-892-Y is the Recirculating Water Sludge Softener Facility and Maintenance Shop and is planned for demolition.

Because the soil and slab underlying Bldgs. K-892 and K-892-Y are part of an EU with an approved NFA, the land underlying these buildings is included in the footprint of this EBS/Covenant Deferral Request. The soils beneath K-892 and K-892-Y were not sampled under the DVS, but they were included within the scope of the PCCR for EU Z2-08. Sampling locations were established during Data Quality Objectives workshops with EPA and TDEC approval, which did not identify samples beneath these facilities. However, as an additional measure for ensuring that no contamination above established remediation levels (RLs) remains, when demolition of K-892 and K-892-Y is complete, the subsurface soils and structures, if any, will be characterized to ensure that the soils and subsurface structures meet the Zone 2 ROD RLs. Documentation confirming such will be provided for EPA and TDEC review and approval in the annual Low-Risk/Low-Complexity Facilities PCCR and possibly an addendum to the Fiscal Year 2007 PCCR. The land underlying Bldgs. K-892 and K-892-Y will not be transferred until either the above PCCR or the addendum has been approved by EPA and TDEC. A buffer of approximately 50 ft around the buildings would be retained until building demolition is completed.

An evaluation of the adjacent land did not indicate a risk posed by the adjacent areas.14-025(E)/092815 xv

CONCLUSIONS Based on the U.S. Department of Energys (DOEs) review of the existing information, including discussions and interviews referenced herein, and evaluation of the data gathered in preparation of the environmental baseline survey for the Former K-33 Area, DOE recommends the following:

Because of the uncertainty associated with the nature of the on-site groundwater and the need to evaluate and possibly address groundwater in the future, DOE recommends that the transfer of the Former K-33 Area be achieved by a covenant deferral per the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) Sect. 120(h)(3)(C).

Based on the results of the Dynamic Verification Strategy evaluation and the remedial actions completed, soils in the seven Exposure Units included in the transfer footprint have been approved by the regulatory agencies (see Appendix C) for unrestricted industrial use. DOE conducted a re-evaluation of the DVS data, a review of the operational history, and an evaluation of the subsurface conditions within the transfer footprint. Based on this evaluation DOE has determined that unrestricted industrial use is appropriate for the Former K-33 Area. Therefore, the soils in the Property are safe for unrestricted industrial use and are suitable for transfer.

Although EU Z2-08 has an approved no further action determination for soils, slabs, and subsurface structures, the soils underneath Bldgs. K-892 and K-892-Y have not been sampled. The Data Quality Objective (DQO) process for Zone 2 did not identify sampling of soils beneath these buildings to be a data need under the Zone 2 Record of Decision (ROD). However, these buildings will be demolished prior to transfer of the Property. Thus, after building demolition the underlying soils will be characterized to ensure that they meet the Zone 2 ROD remediation levels, and documentation confirming such will be provided for U.S. Environmental Protection Agency (EPA) and Tennessee Department of Environment and Conservation (TDEC) review and approval prior to the transfer of the Property.

LAND USE RESTRICTIONS Land use restrictions are an important component of a CERCLA covenant deferral; they help to ensure that transfer of the Property is protective for the intended use. The restrictions that will apply to the Former K-33 Area are summarized below. Full details are found in Sect. 6.1 of the Covenant Deferral Request.

1. The Property shall not be developed in a manner that is inconsistent with the land use assumptions of industrial use contained in approved applicable ROD for Zone 2 [Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2 of East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2161&D2 (DOE 2005)].

2. Development of the Property must comply with all applicable federal, state, and local laws and regulations with respect to any present or future development of the Property.

3. All structures, facilities, and improvements requiring a water supply shall be required to be connected to an approved water system for any and all usage. Extraction, consumption, exposure, or use, in any way, of the groundwater underlying the Property is prohibited without the prior written approval of DOE, EPA, and TDEC.14-025(E)/092815 xvii

4. In order to ensure that the migration of volatile organic compounds (VOCs) in contaminated groundwater does not contribute to an unacceptable risk to human health, DOE will address the potential for vapor intrusion in the East Tennessee Technology Park final Sitewide ROD, which is currently scheduled to be signed in 2022, and will take interim protective measures to ensure protectiveness until the ROD is signed. Any new building or structure built on the Property that is intended to be occupied by workers 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or more per scheduled work day, or by public visitors, must be designed and constructed to minimize potential exposure to VOC vapors using EPA/625/R-92/016 (June 1994), Radon Prevention in the Design and Construction of Schools and Other Large Buildings, as guidance.

5. DOE reserves the right of access to all portions of the Property for environmental investigation, remediation, or other corrective action.

RESPONSE TO REGULATOR COMMENTS The Covenant Deferral Request (CDR) and Environmental Baseline Survey (EBS) were issued in draft form for regulator review on August 8, 2014. Comments were received from EPA Region 4 on September 5, 2014. A written response was received from TDEC on September 8, 2014, stating that they did not have any comments on the draft documents. EPA requested clarification on the status of the cooling tower basins, clarification on the transfer process for Bldgs. K-892 and K-892-Y, clarification on deed language, clarification on how the recirculating cooling water lines will be addressed, clarification on ecological concerns, clarification on the status and future plans for selected infrastructure, and further explanation of the information shown in the Appendix D table. EPA also requested a metes and bounds survey be provided.

Subsequent to receipt of these comments, EPA provided additional comments following the Public Review period for the CDR and EBS. EPA requested revisions to Exhibit D of the CDR including revision of selected milestones, additional information on the schedule for the D&D of Bldgs. K-892 and K-892-Y, and additional milestones for the Federal Facility Agreement Primary Document addressing Land Use Controls. EPA also reiterated the need for the metes and bounds survey, requested additional sampling information be provided in Appendix D of the EBS, and provided additional clarification to be added to two of the previous comment responses and concomitant revisions to the CDR and EBS.

Comments received from EPA, and DOEs responses, are included in the CDR in Sect. 7.1. Comments received have been incorporated into the CDR and EBS.

RESPONSE TO PUBLIC COMMENTS The CDR and EBS were available for public review from September 24, 2014, until October 23, 2014, and the availability of the documents for review was announced in three area newspapers and in the online version for one newspaper. No comments were received from the public.14-025(E)/092815 xviii

1. PROPERTY IDENTIFICATION This environmental baseline survey (EBS) report documents the baseline environmental conditions for the Former K-33 Area transfer footprint. The U.S. Department of Energy (DOE) is proposing to transfer this property for mixed (industrial/commercial) use, pursuant with the applicable Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) Records of Decision (RODs) and the Environmental Assessment completed pursuant to the National Environmental Policy Act (DOE 2003). The Property is composed of a single contiguous tract of land totaling 136.4 acres. The transfer footprint is located in the far northwestern portion of the East Tennessee Technology Park (ETTP) [formerly the Oak Ridge Gaseous Diffusion Plant (ORGDP) or K-25 Site] Heritage Center on the Oak Ridge Reservation (ORR) in Roane County, Tennessee.

The Former K-33 Area transfer footprint is bounded by the K-1065 Area and former K-1066-K Cylinder Storage Yard (EUs Z1-50, Z1-51, and Z1-52) and vacant land to the west; vacant land north of the West Perimeter Road right-of-way; Bldg. K-31 and a buffer zone to the south; and Poplar Creek to the east. The transfer footprint surrounds a tract consisting of approximately 19.9 acres in the northwestern portion of the footprint that has already been transferred. This previously transferred property is the location of the former K-792 Switchyard. The transfer footprint includes the land on which Bldg. K-33 was located, which includes EU Z2-04 and most of EU Z2-05; some vacant land just north of the former K-33 building location where the K-892-J Cooling Tower was located, which includes part of EU Z2-01; the remaining portion of the former K-792 Switchyard that has not been transferred, which includes the balance of EU Z2-02; the former K-762 Switchyard, which includes most of EU Z2-03, mostly vacant land to the east of the former K-33 building location where the K-892-G&H cooling towers were located and where the K-892 Recirculating Water and Fire Water Pumphouse and the K-892-Y Recirculating Water Sludge Softener Facility and Maintenance Shop remain, which includes all of EU Z2-08; and vacant land and the K-861 Cooling Tower Basin to the east of the K-31 building, which includes all of EU Z2-09.

Figure 1.1 shows the location of the study area at the Heritage Center, and Fig. 1.2 shows the proposed transfer footprint. Figures 1.3, 1.4, and 1.5 provide aerial photographs of the study area and adjacent areas.

Figures 1.2, 1.3, and 1.4 indicate the boundary of the proposed transfer footprint and the boundaries of the EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09 in which the proposed transfer footprint is located. DOE received concurrence for no further action (NFA) determinations for soil under an industrial land use risk scenario for all of the EUs included in the transfer footprint. Regulatory concurrence for NFA was received for EUs Z2-02 and Z2-09 in 2007; EUs Z2-01, Z2-03, Z2-08 in 2008; and EUs Z2-04 and Z2-05 in 2013.

Preparation of this report relied on the Phased Construction Completion Reports (PCCRs) that discuss the transfer footprint area and included a detailed search of government records and title documents for the area. Preparation of this report and the relevant PCCRs included reviews of historic aerial photographs that may reflect prior uses; visual and physical inspections of the Property and adjacent properties; and interviews with current and former employees involved in the operations on the real property to identify any areas on the Property where hazardous substances and petroleum products, or their derivatives, were known to have been stored, released, or disposed.14-025(E)/092815 1-1

Fig. 1.1. Location of the proposed Former K-33 Area transfer footprint within the Heritage Center.

1-2

Fig. 1.2. Proposed Former K-33 Area transfer footprint and EU boundaries.

1-3

P PO RE RC LA EK K-792 FORMER K-33 BUILDING K-31 K-762 LEGEND: Z2-19 EAST TENNESSEE TECHNOLOGY PARK OAK RIDGE, TENNESSEE Fig. 1.3. Former K-33 Area, circa 2010.

1-4

1-5 Fig. 1.4. Former K-33 Area, as viewed from the northeast, circa 2014.

1-6 Fig. 1.5. Former K-33 Area, as viewed from the northwest, circa 2014.

2. TITLE SEARCH On October 16, 1996, the State of Tennessee Roane County Recorders Office was visited, and a review was conducted of the recorded deeds documenting previous ownership of the land tract where the Former K-33 Area and adjacent areas are located. The deeds contained no information or references to other recorded evidence that, prior to DOE ownership, the Property was utilized for the storage of hazardous substances and/or petroleum products or their derivatives. Additionally, no information contained in the deeds would indicate that hazardous substances and/or petroleum products or their derivatives were released from or disposed of on the Property. Prior to acquisition by the government, the area was farmland and was a combination of cultivated fields and pastures with scattered wooded areas.

Because the Tennessee Valley Authority (TVA) was the previous owner of several large tracts of ORR land, the TVA Real Estate Office was contacted regarding their knowledge of any previous land uses. The U.S. Army Corp of Engineers (COE) was another source of information that has been contacted regarding previous land uses (see Sect. 3.1).14-025(E)/092815 2-1

3. FEDERAL RECORDS SEARCH AND COMPLIANCE

SUMMARY

3.1 FEDERAL RECORDS SEARCH In 1997, the TVA in Knoxville, Tennessee (TVA 1997), and the COE District Office in Nashville, Tennessee (COE 1997), were contacted to determine if they maintained any records reflecting past or present land use relative to the land that is now the Heritage Center. Neither TVA nor COE had any information regarding the history of past or present land use that would indicate if hazardous substances or petroleum products or their derivatives were stored or released on the site.

DOE real estate records documenting previous ownership of the land tracts where the Former K-33 Area is located were examined. Page A-3 of Appendix A is a statement from the Realty Officer of the DOE Oak Ridge Office (ORO) that the real estate records contained no information or references to other recorded evidence that, prior to ownership by DOE and its U.S. Government predecessor agencies, the property had been used for the storage of hazardous substances. Additionally, no information contained in these records indicated that hazardous substances had been released from or disposed of on the property.

Pre-construction aerial photographs and maps reflecting prior use of this land were also reviewed. A copy of these photographs and maps is maintained on file in the U.S. Department of Energy-Oak Ridge Office (DOE-ORO) Real Estate Office.

Aerial Photographs:

Photograph Nos. and Date Flight By Source No. 130-3-9, dated 1939 Unknown DOE-ORO, Real Estate Office Nos. 820-2-20 through -23 and 820-3-20 Aero Service Corp. for DOE-ORO, Real Estate through -24, dated September 25, 1942 Stone and Webster Office These photographs, which were taken in 1939 and 1942, show that the land where the study area is located was predominantly used for agricultural purposes. Approximately 90% of the Property was used in some type of agricultural pursuit, and the remaining acreage was wooded. A map depicting pre-World War II structures, archeological sites, and cemeteries that were present in the area of the Heritage Center is included in Appendix B.

Topographic and real estate maps:

A November 1, 1942, topographic map identified as Section B-1 of ORR that was prepared by Aero Service Corporation for Stone and Webster and a February 19, 1945, real estate map (sheet 9 of 16) prepared by the U.S. Army shows the boundaries of all land tracts upon which facilities at the site are currently located. The area addressed in this EBS is located on a portion of Land Tract K-1007 with the eastern boundary of the study area being located on a portion of Land Tract B.

Neither the aforementioned photographs nor maps contained any information regarding the history of the past land usage that would indicate that storage or releases of hazardous substances or petroleum products have occurred on the land where the Former K-33 Area is located. Copies of the 1942 topographic map and real estate map are maintained in the DOE-ORO Real Estate Office.14-025(E)/092815 3-1

3.2 REGULATORY

SUMMARY

3.2.1 Background As mentioned previously, for the foundational information about the potential for surface and subsurface soil contamination, this EBS relies upon documentation presented in the following PCCRs:

Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2317&D2), December 2006 (approved) [DOE 2006a] (addresses EUs Z2-02 and Z2-09).

Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2723&D1), March 2008 (approved) [DOE 2008a] (addresses EUs Z2-01, Z2-03, and Z2-08).

Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2590&D1), November 2012 (approved) [DOE 2012a].

All of these PCCRs (DOE 2006a; DOE 2008a; and DOE 2012a) have been approved by the U.S. Environmental Protection Agency (EPA) Region 4 and the Tennessee Department of Environment and Conservation (TDEC) [Appendix C]. The PCCRs address the EUs where characterization or remedial actions had to be completed before the Property could meet the requirements of the Zone 2 ROD

[Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2161&D2 (DOE 2005)]. The PCCRs were prepared as part of the Environmental Management (EM) Dynamic Verification Strategy (DVS). The DVS process is in use for remedial action decision-making across the Heritage Center, and decisions are based on hierarchical land unit divisions of Zones, then Geographic Areas, then Groups, then EUs.

All of the acreage in the Former K-33 Area EBS footprint is included in EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09. These EUs are located in Zone 2 of the Heritage Center. The component and surrounding EUs and the Former K-33 Area transfer footprint are shown on Fig. 1.2.

Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) decisions for EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09 are indicated in Table 3.1. These EUs were assessed under an approved Work Plan [Remedial Action Work Plan for Dynamic Verification Strategy for Zone 1, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2182&D4 (DOE 2007b)] prepared according to the DVS process. The Work Plan was approved by EPA and TDEC on December 7 and 13, 2007, respectively. It was used for both Zone 1 and Zone 2. All verified and validated data used to make regulatory decisions have been placed in the Oak Ridge Environmental Information System (OREIS) database (see http://www-oreis.ettp.energy.gov/oreis/help/oreishome.html) and are available for review. The sampling results and data evaluation can be found in Appendix A of each of the relevant PCCRs (DOE 2006a; DOE 2008a; and DOE 2012a). These data were deemed sufficient to reach NFA decisions for soils under an industrial land use risk scenario for EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09.

Buildings K-892 and K-892-Y are in EU Z2-08, which has an approved NFA for soils, slabs, and subsurface structures. Building K-892 is the Recirculating Water and Fire Water Pump House and is scheduled for demolition. The building contains recirculating water pipelines that are posted as14-025(E)/092815 3-2

containing internal contamination. Building K-892-Y is the Recirculating Water Sludge Softener Facility and Maintenance Shop and is also scheduled for demolition.

Although EU Z2-08 has an approved NFA determination for soils, slabs, and subsurface structures, the soils underneath Bldgs. K-892 and K-892-Y have not been sampled. Buildings K-892 and K-892-Y are located in an area of EU Z2-08 that was classified during Data Quality Objective scoping as a Class 3 soil unit (SU) and sampling was not required at these locations. A Class 3 SU walkover assessment was conducted in Z2-08 as required under the DVS. In addition, facility assessments were conducted on K-892 and K-892-Y according to DVS protocols. Based on the Class 3 SU walkover assessment and the K-892 and K-892-Y facility assessments, it was concluded that biased sampling was not required at these two facilities. The results of the Class 3 SU walkover assessment and the facility assessments are discussed in the EU Z2-08 Technical Memorandum, which is included as Appendix C of the Fiscal Year (FY) 2007 PCCR (DOE 2008a). However, as an additional measure for ensuring that no contamination above established remediation levels (RLs) remains, samples will be collected in the soils beneath these two facilities after completion of Decontamination and Decommissioning (D&D) activities. These results will be evaluated against Zone 2 RLs and this evaluation will be presented in the annual Low-Risk/Low-Complexity Facilities PCCR, and possibly in an addendum to the FY 2007 PCCR for Zone 2. The land underlying these buildings will not be transferred until EPA and TDEC approvals have been received.

Table 3.1. Summary of CERCLA decisions for the Zone 2 EUs addressed in this EBS Geographic area Group PCCR EU (acreage)a Associated FFA sitesb Decision K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-01 K-892-J Cooling Tower NFA for soils for Zone 2 Soils, (28.3 acres) approvedc Slabs, and Subsurface Structures at ETTP K-31/33 Area K-31/K-33 FY 2006 PCCR Z2-02 K-792 Switchyard Soils NFA for soils for Zone 2 Soils, (29.7 acres) (outside transfer footprint) approvedd Slabs, and K-897-N Oil Containment Subsurface Structure (outside transfer Structures at footprint)

ETTP K-897-P Oil Containment Structure (outside transfer footprint)

K-1206-E Sandblasting Residue (outside transfer footprint)

K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-03 K-762 Switchyard Soils NFA for soils for Zone 2 Soils, (14.9 acres) approvedd K-762 Valve Vaults 1 and 2 Slabs, and Subsurface K-897-L Oil Containment Structures at Structure ETTP K-897-M Oil Containment Structure 14-025(E)/092815 3-3

Table 3.1. Summary of CERCLA decisions for the Zone 2 EUs addressed in this EBS (cont.)

Geographic area Group PCCR EU (acreage)a Associated FFA sitesb Decision K-31/33 Area K-31/K-33 2012 PCCR for Z2-04 None NFA for soils EUs Z2-04 and (25.1 acres) approvede Z2-05 at ETTP K-31/33 Area K-31/K-33 2012 PCCR for Z2-05 None NFA for soils EUs Z2-04 and (22 acres) approvede Z2-05 at ETTP K-31/33 Area K-31/K-33 FY 2007 PCCR Z2-08 K-33 Recirculating Cooling NFA for soils for Zone 2 Soils, (24 acres) Water (RCW) Lines Leak approvedc Slabs, and Site Subsurface K-892-G Cooling Tower Structures at Basin ETTP K-892-H Cooling Tower Basins K-897-A Oil Containment Structure K-31/33 Area K-31/K-33 FY 2006 PCCR Z2-09 K-31 Recirculating Cooling NFA for soils for Zone 2 Soils, (21.5 acres) Water Leak Sites approvedd Slabs, and K-861 Cooling Tower Basin Subsurface Structures at K-897-C Oil Containment ETTP Structure K-897-D Oil Containment Structure a

Component names and acreages as provided in the PCCRs listed in Sect. 3.2.

b No FFA sites are located within the former K-33 building EUs.

c NFA approved from the Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2723&D2 (DOE 2008a).

d NFA approved from the Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2317&D2 (DOE 2006a).

e NFA approved in the Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2590&D1 (DOE 2012a).

EBS = Environmental Baseline Survey Report. FFA = Federal Facility Agreement.

CERCLA = Comprehensive Environmental Response, NFA = no further action.

Compensation, and Liability Act of 1980. PCCR = Phased Construction Completion Report.

EU = exposure unit.

The former K-861, K-892-G/-H, and K-892-J Cooling Towers were removed as part of the Cooling Tower Demolition project, which was completed in 1997. Under this project the cooling tower structures were demolished, and the K-892-G/-H cooling tower basins were also demolished. The rubble from demolition of the K-892-G/-H basins was used as fill, which was then covered with clean soil and vegetated. The K-861 and K-892-J Cooling Tower Basins were left in place after removal of all sediment from the basins and steam cleaning of the internal surfaces of the basins. TDEC recommended NFA for the facilities addressed under the Cooling Tower Demolition Project on March 4, 1998, and EPA concurred with No Further Investigation (NFI) for the study area addressed under the Cooling Tower Demolition Project on March 23, 1998.14-025(E)/092815 3-4

Because the soil and slab underlying Bldgs. K-892 and K-892-Y are part of an EU with an approved NFA, DOE will proceed with including the land underlying these buildings as part of the footprint of this EBS/Covenant Deferral Request. However, as an additional measure for ensuring that no contamination above established Zone 2 RLs remains, samples will be collected in the soils beneath these two facilities after completion of D&D activities. These results will be evaluated against Zone 2 RLs and this evaluation will be presented in the annual Low-Risk/Low-Complexity Facilities PCCR and possibly in an addendum to the FY 2007 PCCR. The land underlying these buildings will not be transferred until EPA and TDEC approvals of the applicable PCCR have been received. A buffer of approximately 50 ft around the buildings would be retained until these aspects were completed.

Ecological Impacts Potential impacts to ecological receptors can occur from either:

1. impacts that are associated with residual contamination of environmental media that result in risk to ecological receptors; or

2. impacts to ecological receptors from development and/or operational activities occurring after transfer of the property.

Potential impacts to ecological receptors, both within the transfer property and the adjacent property, from the first category will be addressed as ecological risk in the final ETTP Sitewide ROD, which will also evaluate risk from groundwater and surface water to human and ecological receptors. DOE will remain responsible, regardless of property ownership, for providing the necessary response actions to address any residual contamination on the property to ensure protection of ecological receptors, and any efforts needed will be coordinated with EPA and TDEC under the Federal Facility Agreement (FFA).

Potential impacts to ecological receptors, both within the transfer property and the adjacent property, from development and/or operational activities resulting from property transfer were addressed in the Environmental Assessment for Transfer of Land and Facilities within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee, DOE/EA-1640, October 2011 (DOE 2011), which resulted in a Finding of No Significant Impact. Exhibit B of the Quitclaim Deed, included in Sect. 6.2 of the Covenant Deferral Request, restricts development of the property to the industrial, commercial, and recreational uses evaluated in the Environmental Assessment. Additionally, following transfer, the new property owner is still subject to regulatory requirements such as storm water management, wetlands protection, and Clean Air Act compliance. Finally, adverse environmental impacts to existing ecological receptors would be limited because construction activities would primarily occur within previously disturbed areas.

3.2.2 The EM DVS Protocol and Former K-33 Area Regulatory information for Zone 2, as it relates to the Former K-33 Area, will be discussed below along with a summary of the EM DVS approach. Technical information for EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09 will be presented in Chap. 7.

The EM DVS process was designed to facilitate real-time decision-making and includes five steps:

1. Preparation of DQO scoping packages.

2. Classification of soil units using a graded approach.14-025(E)/092815 3-5

3. Determination of additional sampling or surveying needs.

4. Determination of the need for remedial action using decision rules.

5. Use of confirmation sampling to determine if remedial action is complete.

The decision rules mentioned in Step 4 were based on one or more of the following criteria:

exceedance of a maximum RL (Max RL) at any location, exceedance of an average RL (Avg RL) across the EU, unacceptable future threat to groundwater, or unacceptable cumulative excess lifetime cancer risk (ELCR) of > 1 x 10-4 and hazard index (HI) > 1 across the EU.

The potential threat to groundwater from Zone 2 soils is evaluated by reviewing historical groundwater data and, if necessary, screening soil data against established screening levels. Based on the screening, site-specific modeling may be conducted. Consideration of an action on groundwater is required if any of these steps indicate a site may be a potential source of contamination to groundwater.

3.2.3 Actions Taken Within the Former K-33 Area EBS Study Area Exposure Units The Former K-33 Area EBS study area footprint is located within EUs Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09. Located within EUs Z2-01, Z2-02, EUs Z2-03, Z2-08, and EUs Z2-09 are sites designated as requiring special attention because they were listed in the FFA (Federal Facility Agreement for the Oak Ridge Reservation, DOE/OR-1014 [DOE 1992]) as having the potential for contamination (see Table 3.1). (The FFA agreement was entered into by DOE, the state of Tennessee, and EPA-Region 4 under the authority of CERCLA.)

There are no FFA sites located within Z2-04 and Z2-05. It should be noted that the DQO Scoping Package [Data Quality Objective Scoping Package for the K-31/K-33 Buildings (EUs Z2-04, Z2-05, and Z2-06) at the East Tennessee Technology Park, Oak Ridge, Tennessee, BJC/OR-3234 (BJC 2009)]

identifies the K-33 Recirculating Cooling Water (RCW) Lines Leak Site FFA site as being located in EUs Z2-04 and Z2-05 (DOE 2012a). However, the RCW Lines Leak Site listed in the FFA is actually in the adjacent EU Z2-08 and was evaluated as part of that EU (DOE 2008a).

Characterization, evaluation, and remediation of these sites are used as a metric for completion of the closure of DOE facilities at the Heritage Center. Some EUs contain one or more FFA sites. However, the final action/NFA decisions are made on an EU basis and are not predicated upon the results from any smaller scale subdivision of the EU. If the evaluation of all of the available data for an EU supports an NFA determination at the EU level, then all of the FFA sites within that EU are considered NFA by inclusion. Based on sampling analytical results and an evaluation of the EU-wide contaminant profile, soils in the FFA sites shown in Table 3.1 in EUs Z2-01, Z2-02, EUs Z2-03, Z2-08, and EUs Z2-09 do not pose a potential threat to the future industrial worker or groundwater.14-025(E)/092815 3-6

4. PAST AND PRESENT ACTIVITIES 4.1 PAST AND PRESENT ACTIVITIES FOR THE REAL PROPERTY PROPOSED FOR TRANSFER The following describes the past and present activities for the Property proposed for transfer under this EBS on an EU basis.

EU Z2-01 The western portion of EU Z2-01 was transferred in 2010 to Impact Services, Inc., and the transferred property is currently owned by Environmental Dimensions, Inc., which provides environmental technical support services. The balance of the acreage in EU Z2-01, which will be transferred, has primarily been used for water intake, treatment, and cooling associated with the RCW lines. The main facilities that currently, or previously, occupied the transfer footprint portion of the EU are described below.

K-891 Raw Water Pumphouse The K-891 Raw Water Pumphouse was located immediately northeast of the former K-33 building. It was built in 1954 and operated until 1985. It was used as make-up water for the K-33 RCW system. K-891 was a one-story building with concrete masonry walls and a concrete roof and contained six intake water pumps, motors, and electrical switchgear. The pumphouse was demolished in 2004 as part of the Decontamination and Decommissioning (D&D) Program. However, the concrete slab and valve vaults remain.

K-892-J Cooling Tower and Basin The K-892-J cooling tower was located immediately north of the former K-33 building. It was built in 1978 and operated until 1985. It was part of the RCW system for the K-33 cascade. The treated redwood tower and Munters fill superstructure was demolished as part of the Cooling Tower Demolition Project in 1995.

The K-892-J Cooling Tower Basin was left in place after removal of all sediment from the basin and steam cleaning of the internal surfaces of the basin. TDEC recommended NFA for the facilities addressed under the Cooling Tower Demolition Project on March 4, 1998, and EPA concurred with NFI for the study area addressed under the Cooling Tower Demolition Project on March 23, 1998. Additional sampling of the K-892-J Basin was also conducted under the DVS. This sampling and results are summarized in Sect. 6.1.

During operation, a chromate/zinc/phosphate treatment was used for corrosion control. A pentachlorophenol (PCP) fungicide treatment, which contains or degrades to traces of dioxin, may have been used on this systems cooling towers.

K-33 Recirculating Cooling Water Lines The K-33 RCW lines were located immediately east and north of the former K-33 building. The K-33 RCW lines were used to cool heat transfer systems and operated from 1954 to 1985. The lines located north of the K-33 building provided connection to the K-892-J Cooling Tower and Basin.

EU Z2-02 Approximately 11.7 acres of the total 29.7 acres of EU Z2-02 are located within the Former K-33 Area proposed transfer footprint. The remaining 18 acres of EU Z2-02 were transferred in 2010. The northern 14-025(E)/092815 4-1

portion of EU Z2-02 is currently owned by Environmental Dimensions, Inc. The southern portion of EU Z2-02 was transferred to Energy Solutions LLC. EU Z2-02 was historically used for electrical power distribution associated with the former K-33 building. The primary facilities that previously occupied the transfer footprint portion of the EU are described below.

Former K-792 Switchyard The K-792 Powerhouse Complexa three-building complexconsisted of the K-791-N Switch House, K-791 Control House, and K-791-S Switch House formerly occupied the area of EU Z2-02 proposed for transfer. This complex was originally designed to receive the power from the former K-792 Switchyard and distribute it to the K-33 process facility and K-892 Pump House. The footprints of these former buildings lie to the east of the former K-792 Switchyard, across the railroad spur, and are included in the proposed transfer footprint. In 1998, demolition of the switchyard and switch houses began as part of the ETTP Three-Building D&D and Recycle Project. Since that time the K-791-N Switch House, K-791 Control House, and K-791-S Switch House have been demolished down to their concrete pads

[see Fig. 1.5; Environmental Baseline Survey Report for the Proposed Transfer of the K-792 Switchyard Complex at the East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2347 (DOE 2010)]. The concrete pads and four Synchronous Condenser Buildings made of concrete block remain along with various concrete equipment pedestals and slabs. The activities conducted in the balance of the EU, which has been transferred, are described in Sect. 4.2.

EU Z2-03 Approximately 12.8 acres of the total 14.9 acres contained in EU Z2-03 are included in the proposed transfer footprint. The balance of the acreage in EU Z2-01, which will not be transferred, will be needed during D&D of the adjacent K-31 building. The acreage to be transferred has primarily been used for electrical power distribution associated with the K-31 building. The primary activities conducted within the proposed transfer footprint portion of the EU are described below.

Former K-762 Switchyard The K-762 Switchyard Complex was constructed in 1952 to receive TVA power and supply the K-31 Process Facility. In some documents, it is also referred to as the K-31 Switchyard. At the time of construction, a system of French drains was installed immediately below the switchyards gravel bed. An oil skimmer for runoff was installed in 198081. Approximately 20 transformers were located in the switchyard and there were also four vaults/pits. The footprint of the K-762 Switchyard is coincident with the boundaries of the K-762 Switchyard Soils FFA site. In 1951, two related transformer explosions and a subsequent fire resulted in the release of polychlorinated biphenyls (PCBs) [Site Descriptions of Environmental Restoration Units at the Oak Ridge K-25 Site, Oak Ridge, Tennessee, K/ER-47/R1 (Energy Systems 1995)]. Railroad tracks are located next to the vaults/pits near the eastern border of the proposed transfer footprint. The switchyard was shut down in 1985 and the 161-kV feeds were disconnected and the transformers were either drained or removed from the switchyard. Following shutdown, surplus electrical equipment was stored in the switchyard. It currently is mostly grass-covered and is partially fenced. It contains 21 transformer vault concrete pits. It also contains four Synchronous Condenser Buildings made of concrete block above grade and poured concrete basements in each.

Associated concrete pits for each have been filled in with gravel. Various concrete equipment pedestals, saddles, and slabs also remain in the switchyard. The activities conducted in the balance of the EU that will remain as adjacent property are described in Sect. 4.2.14-025(E)/092815 4-2

EUs Z2-04 and Z2-05 EUs Z2-04 and Z2-05 are the EUs that the former K-33 building occupied, with Z2-04 containing the northern half of the building, and Z2-05 the southern half of the K-33 building. All of EU Z2-04 is included in the proposed transfer footprint, and all of EU Z2-05, with the exception of a small strip at the southern end, is also included in the transfer footprint. The small strip of land in EU Z2-05, which will not be transferred, is needed to support D&D activities for the adjacent K-31 building. The K-33 building, which previously occupied EUs Z2-04 and Z2-05, and associated facilities that occupied these two EUs are described below.

Former K-33 Building Construction of Bldg. K-33 began in July 1952, and it was placed in operation in March 1954 as the largest and last of the ORGDP cascades for the isotopic enrichment of uranium. The first floor was the operating floor that contained the process control room, offices, maintenance shops, and auxiliary equipment such as electrical switchgear, ventilation fans and ducts, process control instrument cabinets, lube oil storage tanks, chlorofluorocarbon evaporative coolant storage tanks, and vacuum pumps with chemical solvent traps. The uranium hexafluoride (UF6) enrichment process equipment was located on the second floor, which was called the cell floor. All enrichment operations were discontinued in 1985 and Bldg. K-33 was shut down in 1987. Portions of the building were then used for hazardous waste storage (Site Descriptions of Environmental Restoration Units at the Oak Ridge K-25 Site, Oak Ridge, Tennessee, K/ER-47/R1). From 1998 to 2005, the building was decontaminated and all process equipment was removed. The demolition of the building (Fig. 4.1) began in 2010 and was completed in 2011 (DOE 2012b). During the preparation stages of the demolition, the soil beneath the slab was characterized using DVS. Removal of the slab began immediately following demolition of the building and was completed in 2012. Following slab removal, the area within the building foundation footprint was graded and seeded with grass (DOE 2012a).

Fig. 4.1. Demolition of the former K-33 building (EUs Z2-04 and Z2-05).14-025(E)/092815 4-3

K-33/K-31 Tie Lines The K-33/K-31 tie lines were elevated transfer lines located outside, between the former K-33 building and the K-31 building. A small portion of the tie lines was in and above the proposed transfer footprint prior to their removal in 2013. Figure 4.2 shows the K-33/K-31 tie line structure prior to demolition, but after completion of the K-33 building demolition. The tie lines provided for the distribution of process gas between the enrichment cascades. They were enclosed in thermally insulated housings and provided with hot air or steam heat and temperature control instrumentation. They were composed of multiple UF6 distribution pipes of 3- to 42-in. diameter. They operated between 1954 and 1985. When gaseous diffusion operations were stopped in 1985, the volatile UF6 inventory was evacuated, and the tie lines were purged and isolated from the process system by closing valves in the interconnection buildings. This tie line was known to contain contamination (including transuranic contamination) during building characterization (K/ER-47/R1 [Energy Systems 1995]).

Fig. 4.2. K-33/K-31 process tie line structure (EUs Z1-06 and Z2-08).

EU Z2-08 All of EU Z2-08 is included in the proposed transfer footprint. The activities that have historically been conducted within this EU were primarily water pumping, treatment, and cooling associated with the RCW lines. The main facilities that currently, or previously, occupied this EU are described below.

K-892-G and -H Cooling Towers and Basins The K-892-G and -H cooling towers were located immediately east of the former K-33 building. They were built in 1954 and operated until 1985. They were part of the RCW system for the K-33 cascade. The treated redwood towers and Munters fill superstructure were demolished as part of the Cooling Tower Demolition Project in 1995. However, the aboveground concrete basins were cleaned, demolished, left in place, and covered with soil and vegetation. A portion of the west wall of the center basin between the G and H towers remains as it serves as the east wall of the K-892 Pumphouse.

During operation, the lines to the K-892-G basin became corroded. A chromate/zinc/phosphate treatment was used for corrosion control. In 1963 and 1973, a Mar-treat system' was used to control biological 14-025(E)/092815 4-4

attack. That process reportedly produces copper fluoride, copper chromate, zinc arsenate, copper arsenate, and zinc chromate. In the early 1960s, the Steam Chem system', which contains semivolatile organics, was used to fight biological attack in cooling towers. A PCP fungicide treatment, which contains or degrades to traces of dioxin, may have been used on this systems cooling towers.

K-892 Pumphouse The K-892 Pumphouse is located immediately east of the former K-33 building. It was built in 1954 and operated until 1989 to pump treated water for the K-33 RCW system. Auxiliary units include the K-896 Recycle Blowdown Facility; the K-896-A, -B, and -C Clarifier Tanks; K-892-D, -E, -K, -M, -P, -U, and -W valve houses; K-892-V Valve House and Electrical Panels; K-892-N HCl Pump House; K-892-R, -S, and -T tanks; K-892-Q HCl Storage Tank and Basin; K-892-X Sludge Tank; K-894 Acid Unloading Station; K-896-C Pump House; and K-700-A -40 Pump House Transformers. Clarifier tanks have been demolished but the concrete basins for them remain. The K-892 building consists of three sections. The northwest section contains water treatment chemical tanks and feed equipment. The east section contains 11 RCW pumps, piping, and valves. The south section contains electrical transformers, diesel fuel tanks, and chemical storage tanks. Outside the west wall are the seven transformers. Outside the south end of the building is an empty, 500-gal diesel tank for the fire water pump engine. There are two empty, 500-gal sulfuric acid tanks outside the northwest end of the building. The building is planned for demolition.

Approximately 80 lead acid batteries, each containing 1 gal of sulfuric acid, have been used and stored in the building along with flammable materials and lime. Chromates and PCBs have also been possible contaminants. The building is posted as having radiological contamination inside the RCW pipes. The above-ground portion of the RCW lines will be removed as part of the building demolition. Prior to transfer, any accessible portions of the RCW lines remaining in-place will be evaluated to ensure they meet the free release criteria of DOE Order 458.1 for residual radioactive materials or, alternatively, the lines will be isolated through engineered controls to eliminate the potential exposure pathway.

K-33 Recirculating Cooling Water Lines The K-33 RCW lines were located immediately east and north of the former K-33 building. They were used to cool heat transfer systems and operated from 1954 to 1985. There were some releases associated with the RCW lines. In 1969, seepage caused by gravel backfill permitting oxygen to penetrate underground occurred around the K-892 risers. In 1970, a large leak caused by galvanic action of the building ground grid lying on top of the header occurred in the north supply header of K-892 (K/ER-47/R1 [Energy Systems 1995]). The RCW Lines Leak Site listed in the FFA was evaluated as part of EU Z2-08 in DOE/OR/01-2723&D1 (DOE 2008a) and DOE/OR/01-2590&D1 (DOE 2012a). More than 50 valve houses and valve vaults associated with the RCW lines remain in the transfer footprint and some are posted as having internal contamination (assumed to mean inside the RCW pipe lines). Prior to transfer, any portions of the RCW lines remaining in-place will be evaluated to ensure they meet the free release criteria of DOE Order 458.1 for residual radioactive materials or, alternatively, the lines will be isolated through engineered controls to eliminate the potential exposure pathway.

K-892-Y Recirculating Water Sludge Softener Facility and Maintenance Shop The K-892-Y Recirculating Water Sludge Softener Facility and Maintenance Shop is located immediately east of the former K-33 building. It was built for handling, thickening, and fixing sludge from RCW treatment. The facility was only operated for testing and evaluation and was later used for storage. The 14-025(E)/092815 4-5

building contains sludge processing equipment. Outside the building is the K-892-X steel thickener tank.

The facility is still standing and is planned for demolition.

EU Z2-09 All of the acreage included in EU Z2-09 is included in the proposed transfer footprint. The majority of the EU is vacant land containing a segment of the West Poplar Creek Patrol Road. The historical activities that have been conducted within this EU were primarily water pumping, treatment, and cooling associated with the RCW lines. The main facilities that currently, or previously, occupied this EU are described below.

K-861 and K-861-J Cooling Towers and Basins The K-861 and K-861-J cooling towers were located immediately east of the K-31 building. K-861 was built in 1951 and operated until 1985. The K-861-J cooling tower was an adjacent, one-cell counterflow tower added at the north end of K-861 in 1979. They were part of the RCW system for the K-31 cascade.

The treated redwood and Douglas fir and Munters fill towers were demolished as part of the Cooling Tower Demolition Project in 1996. However, all sediment was removed from the in-ground concrete basins, and the internal surfaces were steam cleaned and left in place. The sludge removed from the basins was disposed of at the Envirocare facility in Utah. TDEC recommended NFA for the facilities addressed under the Cooling Tower Demolition Project on March 4, 1998, and EPA concurred with NFI for the study area addressed under the Cooling Tower Demolition Project on March 23, 1998. The basins are currently filled with water and radiologically posted due to areas of potential internal surface contamination of the RCW lines. DOE Order 458.1 requires that the RCW lines be evaluated for residual radioactive material prior to release of the Property. This evaluation will result in a determination that the RCW lines meet the requirements of the Order (which are more protective than the Zone 2 ROD requirements), or that the lines be isolated to eliminate the potential exposure pathway, before transfer of the Property.

During operation, a chromate/zinc/phosphate treatment was used for corrosion control. In 1969, a Mar-treat system' was used to control biological attack. That process reportedly produces copper fluoride, copper chromate, zinc arsenate, copper arsenate, and zinc chromate. A PCP fungicide treatment, which contains or degrades to traces of dioxin, may have been used on this systems cooling towers.

Former K-862 Pumphouse The former K-862 Pumphouse was located immediately east of the K-31 building. It was built in 1951 and operated until 1985 to pump treated water for the K-31 RCW system. The building was demolished under the Cooling Tower Demolition Project. Auxiliary units associated with the pumphouse included the K-861-A, and -B valve houses; the K-862-S Sulfuric Acid Tank; and the K-700-A-39 Pump House Transformers, all of which were demolished in 1996.

K-31 Recirculating Cooling Water Lines The K-31 RCW lines were located immediately east of the former K-31 building. The system provided RCW for the K-31 Cascade. There were some releases associated with the RCW lines. In 1956, a leak caused by local galvanic action occurred in the south K-862 supply header. Cathodic protection was installed following this release. In 1968, seepage occurred at ground level (K/ER-47/R1 [Energy Systems 1995]). Approximately 10 valve vaults, which were associated with the RCW lines, are located within the 14-025(E)/092815 4-6

transfer footprint. Prior to transfer, the RCW lines will be evaluated to ensure they meet the free release criteria of DOE Order 458.1 for residual radioactive materials or, alternatively, the lines will be isolated through engineered controls to eliminate the potential exposure pathway.

4.2 PAST AND PRESENT ACTIVITIES FOR THE ADJACENT PROPERTY EU Z2-01 A portion of EU Z2-01, which was transferred in 2010 to Impact Services, Inc., and is currently owned by Environmental Dimensions, Inc., lies adjacent to the Former K-33 Area transfer footprint. This adjacent property is bounded by Perimeter Road to the north and west. This previously transferred portion of EU Z2-01 consists of vacant, grass-covered land that is sparsely populated with trees. Primarily located outside of the main ETTP perimeter fence, this tract has remained undeveloped throughout the history of operations at ETTP. The area is mowed on a routine basis during the growing season.

EUs Z1-46, Z1-48, and Z1-49 EUs Z1-46, Z1-48, and Z1-49 are adjacent to the southwestern boundary of the transfer footprint. These three EUs primarily consist of vacant land and a portion of the K-901 Pond. All three EUs have received concurrence from the regulators for NFA for soils. EU Z1-49 required remedial actions before concurrence for NFA (DOE 2008b). Remedial actions included removal of soils and wooden piers from the former K-895 Cylinder Destruct Facility.

EU Z1-50 EU Z1-50, located adjacent to the western boundary of the transfer footprint, includes the former K-1066-K Cylinder Yard and a portion of the K-901 North Disposal Area. The K-1066-K Cylinder Yard was used for long-term storage of UF6 cylinders beginning in 1981. Removal of all cylinders from the Heritage Center was completed in 2006. The K-1066-K Cylinder Storage Yard occupies approximately 80% of the eastern portion of EU Z1-50 while the remaining 20% of the EU is part of the K-901 North Disposal Area. DOE is proposing moving this EU to Zone 2 of the Heritage Center.

EUs Z1-51 and Z1-52 EUs Z1-51 and Z1- 52, located adjacent to the western boundary of the transfer footprint, also include a portion of the K*901 North Disposal Area in the southwest corner of EU ZI-51. The remainder of these two EUs is occupied by the K-1065-A, -B, -C, -D, and -E Hazardous Waste Storage Units and support facilities and infrastructure. Because there are active facilities occupying these EUs, DOE is proposing to move these two EUs along with EU Z1-50 to Zone 2 of the Heritage Center.

EU Z1-54 EU Z1-54, located adjacent to the western boundary of the transfer footprint, is largely vacant land containing the drainage ditch that feeds the upper end of the K-901 Pond. This EU has received concurrence for NFA for soils (DOE 2006b).14-025(E)/092815 4-7

EUs Z1-58, Z1-63, and Z1-68 EUs Z1-58, Z1-63, and Z1-68 are located adjacent to the northern boundary of the transfer footprint (EU Z2-01) and largely consist of vacant land. Historically, no industrial facilities have occupied these EUs.

All three of these EUs have received concurrence for NFA for soils (DOE 2006b).

EU Z2-02 A portion of EU Z2-02 was transferred in 2010 to Impact Services, Inc., and the transferred property is currently owned by Environmental Dimensions, Inc., which provides environmental technical support services including the detection, identification, characterization, and decontamination of hazardous and radioactive environments. The southern half of the EU has been transferred to Energy Solutions LLC for transportation support activities. Historically, the portion of EU Z2-02, which has been transferred, has been used for electrical power distribution. The primary facility that previously occupied this EU is the K-792 Switchyard, which is described below.

K-792 Switchyard The K-792 Switchyard, located to the west of the former K-33 building location, was constructed in 1954 to support the operation of the K-33 uranium enrichment cascade facility and is approximately 1000 ft by 300 ft in size. The switchyard operated from 1954 until 1985, when the enrichment activities ceased and the switchyard was de-energized and shut down. The specific function of the switchyard was to decrease the incoming voltage from a TVA transmission level of 161 kV to a distribution level of 13.8 kV. To accomplish this function, the switchyard contained several large pieces of electrical equipment. During construction of the switchyard, a series of French drains were installed immediately under the switchyards gravel bed to facilitate drainage. The French drains connected to oil/water separators (OWSs) located on the southwest, northwest, and northeast corners of the switchyard. Grounding cables were also installed below grade. In addition, four underground firewater deluge system valve vaults were installed in the switchyard during initial construction. The northern portion of the switchyard did not contain any of the operational equipment. Rather, this portion of the switchyard was used sporadically as a lay-down area for equipment that was not energized.

EU Z2-03 The easternmost portion of EU Z2-03, which is not included in the transfer footprint, is the location of the K-761 Switch House described below. The portion of EU Z2-03 that will not be transferred is needed to support D&D of the K-31 building.

K-761 Switch House The K-761 Switch House (also known as the K-31 Switch House) was constructed in the early 1950s.

This facility and the associated switchyard served as the power distribution and electrical switching station for the K-31 building. It has two building galleries and a control room gallery. It housed an electrical equipment test area that was relocated to the Elza Facility at the Y-12 National Security Complex. Following shutdown in 1985, maintenance personnel working in the area used the building during the day.14-025(E)/092815 4-8

A Rubb tent was previously located between the K-761 and K-31 buildings and was used to support D&D operations in the area. The Rubb tent has been recently removed. There are railroad tracks just outside the western boundary of the transfer footprint.

EU Z2-05 The small strip of land at the southern end of EU Z2-05, which will not be transferred, is needed to support D&D of the K-31 building. This adjacent property was used for support for the K-31 and K-33 buildings. The primary facilities occupying this adjacent property are described below.

Tie Lines DOE has removed the lines that connected Bldgs. K-33 and K-31. Those tie lines were located partly within the proposed transfer footprint and mostly outside the footprint. A full description is provided in Sect. 4.1.

K-903 Supercompactor The Supercompaction Facility (K-903) was built to support D&D activities for the Three-Building D&D project. Operation began in January 2001 and concluded in the fall of 2004. The Supercompactor operation was housed in a new, temporary, pre-engineered building attached to the south side of the K-33 building. Following conclusion of compactor operations, the building and equipment were decommissioned and removed. The concrete foundation pad remains and was decontaminated and surveyed prior to demobilization of the Three-Building D&D project.

The K-903 concrete slab is posted as containing fixed radiological contamination. The K-903 slab will be removed and the soils beneath the concrete slab will be characterized to ensure that the soils meet the Zone 2 ROD RLs. Documentation confirming such will be provided for EPA and TDEC review and approval in the appropriate PCCR and possibly an addendum to the Z2-04 and Z2-05 PCCR.

EU Z2-06 EU Z2-06 is adjacent to the southern portion of the proposed transfer footprint (see Fig. 1.2). This EU is the location of the K-31 building, which is described below.

Building K-31 The K-31 building is located to the south of the study area and is a two-story structure with a total floor area of approximately 32 acres. The building was part of the low-enriched uranium gaseous diffusion cascade at the ORGDP and began operations in 1954. All enrichment operations were discontinued in 1985 and Bldg. K-31 was shut down in 1987. Building K-31 and associated equipment have historical radiological and chemical contamination from past operations and are being addressed under the ORR FFA under CERCLA authority. Between 1997 and 2005, a CERCLA removal action was undertaken by DOE to remove the process equipment and to decontaminate the facilities [Engineering Evaluation/Cost Analysis for Equipment Removal and Building Decontamination for Buildings K-29, K-31, and K-33, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/02-1579/D2 (DOE 1997)]. All process and non-process equipment and associated piping, ducting, and electrical services have been removed from the K-31 building. Removal of the exterior transite siding was initiated in May 2014 in preparation for D&D of the building.14-025(E)/092815 4-9

EU Z2-07 EU Z2-07 is adjacent to the southern end of the proposed transfer footprint (Fig. 1.2). This EU is generally vacant land that has primarily been used for temporary staging of support trailers and facilities.

EU Z2-10 EU Z2-10 lies adjacent to the southeastern portion of the transfer footprint. This EU is generally vacant land that was the location of the former K-1206-F water storage tank. This water tower was demolished in 2013.

4.3 HYDROGEOLOGIC ENVIRONMENT This information is being presented to provide the basis for the evaluation of the potential for vapor intrusion into existing or future buildings within the Former K-33 Area transfer footprint.

The Former K-33 Area is located in the northwestern portion of the Heritage Center. This portion of the Heritage Center is underlain by bedrock of the upper Knox Group and the lower Chickamauga Supergroup formations (Fig. 4.3). The Knox Group in the vicinity of the K-33 study area consists of the Kingsport Formation and the Mascot Dolomite (Lemiszki 1994), and the Chickamauga Supergroup consists of the Pond Springs Formation, the Murfreesboro Limestone, the Ridley Limestone, the Lebanon Limestone, and the Carters Limestone. Structurally, these formations dip to the southeast in the vicinity of the study area. The angle of dip ranges from 20 to 41 degrees to the southeast based on measurements obtained from bedrock exposures along Poplar Creek (see Lemiszki 1994) east of the Former K-33 Area.

The bedrock formations underlying the northern half of the Former K-33 Area consist primarily of interbedded limestone and dolomite of the Kingsport Formation and thick-bedded dolomite units of the Mascot Dolomite. Calcareous shales and argillaceous limestones of the Pond Spring Formation overlie the thick-bedded dolomite units of the Mascot Dolomite and thin- to thick-bedded, fine-grained crystalline limestones of the Murfreesboro Limestone overlie the Pond Spring Formation. Thick to massively bedded, fucoidal-textured limestone is characteristic of the Ridley Limestone, which overlies the Murfreesboro Limestone. Fucoidal texture is a term used to describe the presence of tan-brown, irregularly shaped, fine- to coarse-grained dolomitic patches within the limestone. A distinctive characteristic of the Lebanon Limestone is the abundance of fossils in this unit. Bedding in the Lebanon Limestone ranges from regular and even, thin to medium beds, to irregular, cobbly beds. Some thick to massive limestone beds also occur. Thick to massive beds of interbedded micritic- and coarse-grained limestone characteristic of the lower part of the overlying Carters Limestone are present beneath the southern portion of the study area. Chert in the lower Carters consists of gray-black pods and lenses.

Where outcrops are absent, chert blocks are relatively abundant in the residuum. The top of the lower part consists of olive-gray, argillaceous limestone that is mud-cracked and devoid of fossils and weathers into thin chips. The middle part of the Carters Limestone consists of medium to thick, regular- and even-bedded, blue-gray limestone. At the top of the middle part are two apple green, sometimes partly maroon, metabentonite beds that range from 1 to 3 ft in thickness. Although exposures of the metabentonites were not found in the Heritage Center area during mapping by Lemiszki (1994), they have been observed along strike toward the southwest and northeast. The upper part of the Carters is poorly exposed but consists of micritic, greenish-gray and yellowish-gray, poorly-bedded, mud-cracked limestone.14-025(E)/092815 4-10

Fig. 4.3. Geologic map of the K-33 and surrounding area EBS study area.

4-11

Formations of both the Chickamauga Supergroup and the Knox Group are subject to karst development due to their high carbonate content. Significant karst development is associated with the Knox Group formations in the vicinity of the Heritage Center. The only documented, enterable caves in the vicinity of the Heritage Center are developed in the Knox Group[Groundwater Remedial Site Evaluation Report for the Oak Ridge K-25 Site, Oak Ridge, Tennessee, DOE/OR/01-1468V1&D1 (DOE 1996)]. Drilling in the K-1070-A Burial Ground, located northwest of the Former K-33 Area, encountered cavities ranging up to 22 ft in height; however, borehole surveys indicate that the geometry of these cavities is more indicative of vertical shaft development than an elongated passage. Although less prone to karst development than the Knox Group rocks, the Chickamauga formations are, nevertheless, also subject to the development of karst. Evidence of karst development in the Chickamauga also includes cavities encountered in drilling at the Heritage Center. Approximately 30% of the monitoring wells completed in the Chickamauga at the Heritage Center have encountered cavities ranging in size from a few inches up to 7 ft. Pre-construction topographic maps indicate the occurrence of sinkholes in the vicinity of the K-33 study area. A closed depression that appears to be a large sinkhole existed beneath what is now the west side of the K-33 building, and additional closed depressions existed in the vicinity of the study area. All of these sinkholes were filled during construction of the K-31/K-33 buildings circa 1950.

Hydrogeologic characterization data for the Former K-33 Area are provided by 13 monitoring wells located within or adjacent to the study area (see Fig. 4.3). Much of the hydrogeologic characterization data discussed below for the K-33 study area reflect the information available from these wells and from other available Heritage Center site-wide information.

The water table at the Heritage Center generally mimics topography with shallow groundwater flowing from higher topographic areas to the surrounding surface water bodies. Groundwater flow paths in bedrock are a key uncertainty in the conceptual model of the Heritage Center, but fractures, bedding planes, and hydraulic gradient are expected to be the primary controlling factors. Based on the data obtained during installation of monitoring wells in the vicinity of the K-33 study area, it appears likely that bedrock occurs at depths from approximately 10 to greater than 30 ft below ground surface (bgs).

Based on pre-construction topographic maps, it appears that over 10 ft of fill material was potentially placed in the pre-construction sinkhole located under the K-33 building during construction of the building.

Water levels obtained from the wells in the vicinity of the Former K-33 Area indicate depths to water ranging from 5 to 55 ft bgs with shallow groundwater flow anticipated to be primarily to the south, southeast, and east toward Poplar Creek. Vertical hydraulic gradients determined from the paired unconsolidated zone and bedrock monitoring wells in the vicinity of the study area indicate generally downward vertical gradients from the unconsolidated zone to the bedrock. Hydraulic conductivity of subsurface materials has been determined from slug tests conducted in numerous monitoring wells throughout the Heritage Center. Based on these tests average values for the Knox and Chickamauga bedrock and the overburden materials above bedrock have been determined and are presented in Table 4.1.

A groundwater plume has not been identified beneath or within the vicinity of the K-33 study area. The nearest identified plume, sourced from the K-1070-A Burial Ground, is located upgradient and approximately 1000 ft northwest of the study area. Although available potentiometric maps indicate that this plume may be considered to be upgradient of the Former K-33 Area, groundwater data and dye tracer studies indicate that flow from the K-1070-A Burial Ground is to the southwest toward the K-901 Pond and not southeastward toward the K-33 study area. Analytical data for the monitoring wells located in the vicinity of the K-33 study area indicate the general absence of volatile organic compounds (VOCs) in 14-025(E)/092815 4-12

Table 4.1. Summary of hydrogeologic conditions at the K-33 study area Parameter Site conditions Is a groundwater plume present beneath the site? None identified Distance from site to nearest upgradient plume (ft) 1000 NW Is karst present? Yes Depth to bedrock (ft) 5 to 55 Depth to groundwater (ft) 1240a Are fill materials present at the site? Yes Composition of overburden materials present. Primarily silty clay Shallow groundwater flow direction East, southeast, and south Hydraulic conductivity of overburden materials (cm/sec) 1.25E-03b Hydraulic conductivity of bedrock (cm/sec) 4.28E-03c Hydraulic gradient at the site (ft/ft) 0.008a Is a perched water table present at the site? None identified a

Represents range based on available data.

b Represents average hydraulic conductivity of unconsolidated zone at the Heritage Center based on slug test results for wells completed in overburden materials at the Heritage Center.

c Represents average hydraulic conductivity of bedrock at the Heritage Center based on slug test results.

both the bedrock and unconsolidated zone materials. Several VOCs, including 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1-dichloroethene (DCE), 1,2-DCE, chloroform, and trichloroethene (TCE), have been historically detected at bedrock well BRW-067 located within the footprint of the K-33 study area.

Although VOCs have been detected at this well, a plume has not been defined because these compounds have only been detected in this single, isolated bedrock well and detections have been inconsistent.

TCE concentrations at BRW-067, which is 61 ft deep, have ranged from 63 micrograms per liter (µg/L) in 1990 to 13 µg/L in 1998, which is the most recent sampling event with analysis for VOCs for this well.

Although concentrations of TCE exceed the EPA drinking water maximum contaminant level (MCL) at well BRW-067, VOCs are generally absent from groundwater in the other monitoring wells in the study area. As mentioned previously, groundwater flow paths in bedrock are a key uncertainty at the Heritage Center and the source of these VOCs at BRW-067 is uncertain. Analytical data for the other wells in the vicinity of the study area indicate the general absence of VOCs in both the bedrock and unconsolidated zone materials. Low estimated concentrations of 2-butanone (3 µg/L) and acetone (8 to 51 µg/L), which are common laboratory contaminants, have been detected at only one well each (BRW-027, BRW-028, BRW-032, UNW-039, and UNW-083). Chloroform has been detected at three wells (BRW-031, BRW-063, and BRW-067) at concentrations ranging from 1 to 21 µg/L. Three wells have also shown low estimated concentrations of TCE (BRW-027, BRW-063 and UNW-083) ranging from 1 to 3 µg/L. At two of these wells (BRW-027 and UNW-083), TCE has been detected in only one in five sample events since 1994. TCE (1 to 3 µg/L) was reported in three of five sampling events at bedrock well BRW-063. VOCs were detected in soil samples and in both of the two soil vapor samples, at low concentrations. Although the available data suggest the general absence of VOCs in the groundwater beneath the study area, there is uncertainty concerning groundwater flow paths due to the karst conditions in the bedrock underlying the K-33 area.14-025(E)/092815 4-13

5. RESULTS OF VISUAL AND PHYSICAL INSPECTIONS 5.1 VISUAL AND PHYSICAL INSPECTIONS OF THE PROPERTY TO BE TRANSFERRED An initial visual and physical inspection of the K-762 Switchyard tract (EU Z2-03) was conducted on August 30, 2012, and a follow up inspection was conducted on March 7, 2014. The study area was generally flat except for a hill on the southwestern side and with the exception of the paved roadways, concrete transformer pedestals, and concrete pits covered with grass, shrubs, and trees (Figs. 5.1 to 5.3). The grass was primarily on the southern end and the shrubs and trees were grown up in the gravel area around the transformer pedestals and transformer pits on the northern end. The railroad line that extends into the transfer footprint had a number of locomotives parked on it.

The concrete pits were open and filled with water to a depth of approximately 3 to 4 ft upon initial inspection, but have since been filled with gravel to eliminate any safety concerns (Fig. 5.4). Likewise, at the time of the initial inspection, the transformer pits and valve boxes were open and were partially water-filled.

Since the initial inspection many of these structures have been filled with gravel (Fig. 5.5).

The two oil skimmers were observed and seemed to be functional covered with grating. There were also a number of transformer pits that had various degrees of covering and protection from inadvertent entry (Fig. 5.6). As mentioned above, a number of these pits and skimmers have been filled and are no longer accessible. A few stained areas on the pavement were observed, and some oil was observed leaking from the locomotives on the railroad line.

Visual and physical inspections of the Former K-33 Area were conducted on October 25, 2012, and March 7, 2014. The study area was generally flat except for a hill on the north side.

The former K-33 building footprint was covered with soil fill and grass (Fig. 5.7) and was surrounded by the building foundation wall, a truck alley with imbedded rail line on the northern side (Fig. 5.7), gravel or grassy areas and paved roadways on all sides (Fig. 5.8), and a truck alley on the southern side. The K-33 north truck alley (Fig. 5.7) was posted as containing fixed radioactive contamination. The contamination levels were not posted; however, remediation of this area is planned.

There were various valve pits and valve houses around the Former K-33 Area footprint (Figs. 5.9 and 5.10),

several of which were posted as containing internal fixed contamination. These postings are believed to reflect radiological contamination on the internal surfaces of RCW piping. Prior to transfer, any accessible portions of the RCW lines remaining in-place will be evaluated to ensure they meet the free release criteria of DOE Order 458.1 for residual radioactive materials or, alternatively, the lines will be isolated through engineered controls to eliminate the potential exposure pathway.

The hill on the northern side was covered with grass, shrubs, and trees, with the exception of the area where the former K-892-J cooling tower stood (Fig. 5.11), which contained a road around concrete slabs and foundations, piping ends, and valve pits.

The portion of the transfer footprint that was in the K-791 Switch House area contained concrete transformer pedestals, four Synchronous Condenser superstructure housings, and concrete slabs but was otherwise covered with grass and shrubs (Fig. 5.12).

In the center of the southern side of the Former K-33 Area footprint, there was a superstructure that supported the process tie line that ran between the K-31 building and the K-33 building (see Fig. 4.2). This structure has been demolished.14-025(E)/092815 5-1

Fig. 5.1. Footprint topography and surface condition of K-762 Switchyard (EU Z2-03).

The concrete pad for the K-891 Raw Water Pumphouse along with associated valve pits remained in EU Z2-01.

Another visual and physical inspection of the Former K-33 Area was conducted on March 7, 2014, to update the status of the Property and to perform an inspection of the eastern half of the transfer footprint that had not been included in the previous inspections.

The tie lines that were located in the transfer footprint during the previous inspection have now been demolished and removed.

The K-892 Pumphouse was posted as having internal contamination in the RCW piping (Fig. 5.11).

Electrical switching equipment cabinets remained inside the building alsong with the RCW piping.

Outside of the K-892 Pumphouse (Fig. 5.12), there was an out-of-service 500-gal diesel fuel tank on the southern end of the building, the concrete basins of clarifiers remained partially filled with water, and there were various valve pits and valve houses. There were also Oil Containment Structures located in EUs Z2-08 and Z2-09.

In the southeastern portion of the transfer footprint, the K-861 cooling tower basins were observed to be filled with water and were posted as containing radiological contamination during the March 2014 visual and physical inspection (Fig. 5.13).14-025(E)/092815 5-2

Fig. 5.2. Relic electrical infrastructure (EU Z2-03).

Fig. 5.3. Concrete transformer pedestals at K-762 Switchyard (EU Z2-03).14-025(E)/092815 5-3

Z2-03).

Fig. 5.4. Filled concrete pits at Synchronous Condenser Buildings (EU Z2-03).

Fig. 5.5. Filled in-ground valve box in K-762 Switchyard, K-761 Switch House and K-31 in background (EU Z2-03).14-025(E)/092815 5-4

Fig. 5.6. Oil skimmer at K-762 Switchyard (EU Z2-03).14-025(E)/092815 5-5

14-025(E)/092815 Fig. 5.7. Former K-33 building footprint condition (EUs Z2-04 and Z2-05).

5-6 Fig. 5.8. Gravel and grassy areas at north end of K-33 Building (EUs Z2-01 and Z2-04).14-025(E)/092815 5-7 Fig. 5.9. Inactive valve pits and valve houses in northern portion of transfer footprint (EU Z2-01).14-025(E)/092815 5-8 Fig. 5.10. Former K-892-J Cooling Tower area in northern portion of transfer footprint (EU Z2-01).14-025(E)/092815 5-9 Fig. 5.11. K-892 Pumphouse exterior and interior (EU Z2-08).14-025(E)/092815 5-10 Fig. 5.12. Area outside the K-892 Pumphouse (EU Z2-08).

Fig. 5.13. K-861 Cooling Tower Basin (EU Z2-09).

5.2 VISUAL AND PHYSICAL INSPECTION OF ADJACENT PROPERTY The adjacent areas include the K-31 building, the K-761 Switch House, and the K-903 concrete pad to the south and east; the portion of the K-792 Switchyard area (see Fig. 5.14) that has been transferred to CROET and was previously transferred (prior to their bankruptcy) to Impact Services and the K-1065 Waste Storage Area to the west; Zone 1 to the north; and Poplar Creek to the east. With the exception of the portion of the K-792 Switchyard area that has been transferred to CROET, the adjacent areas are owned by DOE and have been assessed to determine actual or potential releases of hazardous substances or petroleum products. Information about each of the adjacent areas that may contain contamination is documented in Sect. 4.2.

The adjacent areas of the K-762 Switchyard were evaluated during the walkdown on August 30, 2012. One feature observed was the Rubb tent located between the K-761 Switch House and the fence separating the K-762 Switchyard Complex and Bldg. K-31. During the walkdown on March 7, 2014, it was observed that the Rubb tent was being dismantled and removed, and it has since been completely removed.

The adjacent areas of the western half of the Former K-33 Area were initially evaluated during the walkdown on October 25, 2012. There was a concrete road with imbedded rail line on the southern side of the former K-33 building footprint and a concrete slab (K-903) in the middle of the southern side of the former K-33 building footprint. The K-903 concrete slab was posted as containing fixed radioactive contamination. The contamination levels were not posted.

Another visual and physical inspection of the adjacent Property to the Former K-33 Area was conducted on March 7, 2014, to update the status of the Property and to perform an inspection of the eastern half of the footprint that had not been included in the previous inspection. The tie lines that were located over the southernmost boundary of the transfer footprint have now been demolished and removed.14-025(E)/092815 5-11

14-025(E)/092815 5-12 Fig. 5.14. Adjacent area to west showing former K-791 Switch House with Synchronous Condenser Buildings (EU Z2-02).

6. SAMPLING RESULTS All seven of the EUs (Z2-01, Z2-02, Z2-03, Z2-04, Z2-05, Z2-08, and Z2-09) associated with this Former K-33 Area EBS were assessed under an approved Work Plan (DOE/OR/01-2182&D4 [DOE 2007b])

prepared according to the DVS process. The Work Plan was approved by EPA and TDEC on December 7 and 13, 2007, respectively. All verified and validated data used to make regulatory decisions have been placed in the OREIS database (http://www-oreis.ettp.energy.gov/oreis/help/oreishome.html) and are available for review. The sampling results and data evaluation can be found in Appendices of the PCCRs.

These data were deemed sufficient to reach NFA decisions under an industrial land use risk scenario for soil and subsurface structures in the seven EUs, which are included, either partially or completely, in the Former K-33 Area transfer footprint. EUs Z2-04, Z2-08, and Z2-09 are completely contained in the transfer footprint, and EUs Z2-01, Z2-02, Z2-03, and Z2-05 are partially included in the transfer footprint.

The portions of EU Z2-01 and Z2-02, which are not included in the Former K-33 Area transfer footprint, have previously been transferred. Surface and superstructure contamination was not within the scope of the DVS process or PCCRs. DVS sample locations, and sub-slab confirmation sample locations collected following slab removal, are indicated in Fig. 6.1.

6.1 DATA FOR EU Z2-01 Following is a summary of the sampling results for EU Z2-01. Although only a portion of the EU is proposed for transfer (the western portion of the EU was previously transferred), all sample results for EU Z2-01 are from within the Former K-33 Area transfer footprint. One DVS four-point composite of surface soil samples (0 to 0.5 ft bgs) was collected in the K-892-J Cooling Tower Basin and analyzed for metals, PCBs, and radionuclides during March 2006. This was followed by sampling four DVS systematic grid sample locations (0 to 0.5 ft bgs and 0.5 to 2 ft bgs) in the K-892-J Cooling Tower Basin and analyzing the samples for PCBs. The PCB average RL was exceeded in the composite sample and both depth intervals of the systematic grid samples. However, based on the weighted average calculation presented in the approved PCCR, the PCB average RL was not exceeded across Z2-01.

Based on DVS and historical sampling analytical results, results of the Class 3 walkover assessment, and evaluation of the data collected for this EU, the following was determined:

There were no maximum RL exceedances in EU Z2-01.

No average COC concentration across EU Z2-01 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-01.

As documented in the approved PCCR (DOE 2008a), no further action is necessary to meet industrial land use in this EU.

6.2 DATA FOR EU Z2-02 Following is a summary of the sampling results for EU Z2-02. EU Z2-02 is only partially included in the transfer footprint and sampling was conducted in portions both inside and outside the transfer footprint. A total of 48 soil samples were collected under the DVS and 8 of the 48 sample locations are within the transfer footprint (Fig. 6.1), with the balance of the samples collected from the previously 14-025(E)/092815 6-1

PL PO AR E

CR EK K-792 FORMER K-33 BUILDING K-31 K-762 LEGEND:

EAST TENNESSEE TECHNOLOGY PARK OAK RIDGE, TENNESSEE Fig. 6.1. DVS and sub-slab confirmation sample locations in the Former K-33 Area transfer footprint.

6-2

transferred portion of the EU. Based on DVS and historical sampling analytical results and results of the Class 3 walkover assessment, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-02.

No average COC concentration across EU Z2-02 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-02.

Because the maximum COC concentrations were detected in samples collected from within the transferred property of the K-792 Switchyard, and not from within the Former K-33 Area footprint, there is no impact to the findings presented in the PCCR for EU Z2-02. As documented in the approved PCCR (DOE 2006), no further action is necessary to meet industrial land use in this EU.

6.3 DATA FOR EU Z2-03 Following is a summary of the sampling results for EU Z2-03. Soil sample locations are indicated in Fig. 6.1. A total of 34 samples were collected under DVS for this EU, and 28 of the 34 sample locations are within the transfer footprint. Based on DVS and historical sampling analytical results and results of the Class 3 walkover assessment, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-03.

No average COC concentration across EU Z2-03 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-03.

As documented in the approved PCCR (DOE 2008a), no further action is necessary to meet industrial land use in this EU.

An evaluation of the potential impact on the DVS decisions was conducted due to the difference in transfer footprint and EU boundaries. This evaluation indicated that there were only six sample results for metals within the EU footprint, and all six of them are within the Former K-33 Area transfer footprint.

However, three of the six sample results for lead exceeded the screening criterion of HI = 1 (800 milligrams per kilogram [mg/kg]). Additionally, the straight average of the six results also exceeds the HI = 1. The three high results were from samples collected from sediment in the concrete structures of transformer vaults and concrete pits. The results were evaluated in the PCCR by a weighted average based on the area of the concrete structures and the area of the rest of the EU footprint. Since the footprint area is different than that of the EU, this weighted average was reevaluated consistent with the DVS protocol, and calculated to be 50 mg/kg, which is less than the 1 x 10-5 Ind Preliminary Remediation Goal. In addition, due to the safety concerns, the concrete structures have been filled in and the transformer vaults may be filled in as well, which eliminates the pathway of exposure to lead in the sediment of these structures.

6.4 DATA FOR EU Z2-04 Sampling of soil around the outside of the former K-33 building was conducted in 2006, prior to demolition of the building (Fig. 6.1). The soil under the building was characterized for DVS by drilling through the slab prior to slab removal after demolition of the building. DQO planning assumed the slab would remain in place. With removal of the slab during remedial action, concrete characterization data were no longer necessary. The underlying soil (now exposed) was sampled at statistical and biased locations and a radiological walkover survey (RWS) of the soil in the former slab footprint was conducted 14-025(E)/092815 6-3

following the slab removal remedial action. The biased location data are contained in Appendix D of this EBS and are discussed below.

The details of sampling and analysis in EU Z2-04 are presented in Appendix A of the PCCR (DOE 2012a). Sampling conducted in this EU consisted of biased sampling at the expansion joints and below the floor drains, which included 0- to 2-ft composite and 2- to 10-ft composite samples at each location.

Systemic grid locations outside the slab footprint included 0- to 2-ft composite samples at 24 locations and 0- to 10-ft interval composite samples at 5 locations. Based on the results of the sampling conducted, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-04.

No average COC concentration across EU Z2-04 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-04.

As documented in the approved PCCR (DOE 2012a), no further action is necessary to meet industrial land use in this EU.

The remediation contractor, Lata-Sharp Remediation Services, LLC (LSRS), conducted gamma walkover surveys as the K-33 building slab was being removed. The Final Report of Radiological Surveys and Soil Sampling for the K-33 Demolition and Disposition/Removal Project at East Tennessee Technology Park, LSRS-K33-FSR-RP-001 (LSRS 2012), contains data on surface soil radiological gamma scans of EU Z2-04 after the remedial action to remove the slab was completed. The gamma walkover surveys identified several small areas of elevated activity and two relatively large areas of contamination: the former loading dock at the northern study boundary and an area containing in-ground pipes located near the center of the K-33 footprint containing concentrations greater than the Max RLs for 238U and greater than risk screening levels for several SVOCs. LSRS collected 21 statistical samples across EU Z2-04 and EU Z2-05 and 23 biased samples in EU Z3-04 and analyzed for metals, VOCs/SVOCs, PCBs, and 40K, but not other radionuclides, to verify contamination levels in the soil remained less than the RLs after the completion of the remedial action. Three biased samples in EU Z2-04 were also collected post-remediation for waste handling purposes and three biased samples were collected based on the results of the survey to determine waste disposition paths for excavations identified as part of the survey.

All were analyzed for metals, PCBs, and radionuclides. However, no sampling data were presented in the report and the statistical sampling data are not available. The biased sampling data were obtained from LSRS and are shown in Appendix D. The sample locations are shown in Fig. 7 of the Z2-04 and Z2-05 PCCR (DOE 2012a) and illustrated in Fig. 6.1. The three samples collected post-remediation for waste handling purposes were taken in the former loading dock at the northern study boundary. These samples showed no results greater than the Avg RLs. No post-remediation samples were collected at the in-ground pipes located near the center of the K-33 footprint.

At DOEs request, Oak Ridge Associated Universities (ORAU), under the Oak Ridge Institute for Science and Education (ORISE) contract, performed independent verification (IV) of LSRSs gamma survey results and reviewed, to the extent possible, preliminary radio-analytical data from the aforementioned soil samples. Judgmental soil samples were collected as a result of gamma walkover survey results. The results of the IV samples are also included in Appendix D. A total of eight IV surface soil samples were collected from judgmental locations in EU Z2-04 where elevated direct gamma radiation levels suggest the presence of contamination. However, soils associated with samples 5105S0001 and 5105S0002 (in the loading dock area) and samples 5105S0008 and 5105S0009 (from the former contaminated pipe run) included in Appendix D were excavated and do not represent current conditions. Additionally, samples S0003 and S0004 are associated with a former waste line that was removed by LSRS. Only samples S0005 and S0006 represent current residual concentrations (see Appendix D). The results for these samples showed no maximum or average RL exceedances.14-025(E)/092815 6-4

6.5 DATA FOR EU Z2-05 Sampling of soil around the outside of the K-33 building was conducted in 2006, prior to demolition of the building (Fig. 6.1). Historical sampling in the Z2-05 Exterior Class 2 SU was conducted during the 1994 RWS. The soil under the building was characterized for DVS by drilling through the slab prior to slab removal but after demolition of the building. DQO planning assumed the slab would remain in place.

With removal of the slab during remedial action, concrete characterization data were no longer necessary.

The underlying soil (now exposed) was sampled at statistical and biased locations and an RWS of the soil in the former slab footprint was conducted following the slab removal remedial action. The biased sample data are contained in Appendix D of this EBS and are discussed below.

The details of sampling and analysis in EU Z2-05 are presented in Appendix A of the PCCR (DOE 2012a). Sampling conducted at this EU included biased sampling at the expansion joints and below the sump pit floor included 0- to 2-ft composite and 2- to 10-ft composite samples at each location. Systemic grid locations outside the slab footprint included 0- to 2-ft composite samples at 12 locations and 0- to 10-ft interval composite samples at two locations. Based on the results of the sampling conducted, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-05.

No average COC concentration across EU Z2-05 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-05.

As documented in the approved PCCR (DOE 2012a), no further action is necessary to meet industrial land use in this EU.

As discussed above, LSRS conducted gamma walkover surveys as the K-33 building slab was being removed and collected confirmation soil samples following slab removal (LSRS 2012). The sample locations are shown in Fig. 7 of the Z2-04 and Z2-05 PCCR and illustrated in Fig. 6.1. These samples showed no results greater than the Avg RLs. Thus, the findings of the approved PCCR are also valid for the portion of EU Z2-05 to be transferred.

At DOEs request, ORAU, under the ORISE contract, performed IV of LSRSs gamma survey results and reviewed, to the extent possible, preliminary radio-analytical data from the aforementioned soil samples.

Judgmental soil samples were collected as a result of gamma walkover survey results. The results of the IV samples are also included in Appendix D. Only one surface soil sample (5105S0007) was collected from a judgmental location in EU Z2-05 where elevated direct gamma radiation levels suggested the presence of contamination and represents current residual concentrations. The results for this sample showed no average or maximum RL exceedances.

6.6 DATA FOR EU Z2-08 Following is a summary of the sampling results for EU Z2-08, which is included in its entirety in the proposed transfer footprint. Soil samples collected under the DVS are shown in Fig. 6.1. Based on both historical and DVS sampling information and results of the Class 3 walkover assessment, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-08.

No average COC concentration across EU Z2-08 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-08.14-025(E)/092815 6-5

As documented in the approved PCCR (DOE 2008a), no further action is necessary to meet industrial land use in this EU.

6.7 DATA FOR EU Z2-09 Following is a summary of the sampling results for EU Z2-09, which is included in its entirety in the proposed transfer footprint. Soil samples collected under the DVS are shown in Fig. 6.1. Based on both historical and DVS sampling information and results of the Class 3 walkover assessment, and evaluation of the data, the following was determined:

There were no maximum RL exceedances in EU Z2-09.

No average COC concentration across EU Z2-09 exceeded its average RL.

There are no sources for groundwater contamination in EU Z2-09.

As documented in the approved PCCR (DOE 2006), no further action is necessary to meet industrial land use in this EU.14-025(E)/092815 6-6

7. RISK EVALUATION The Zone 2 remedial action objectives (RAOs) were developed by the DVS process to support the future use of the Heritage Center as a mixed-use commercial and industrial park. Therefore, remediation criteria were designed for the protection of the future industrial worker.

Within that constraint, the decision rules established in the DVS were based on one or more of the following criteria:

exceedance of a Max RL at any location, exceedance of an Avg RL across the EU, unacceptable future threat to groundwater, or unacceptable cumulative ELCR of > 1 x 10-4 and HI > 1 across the EU.

The National Contingency Plan (NCP) preamble (55 Federal Register 8716, March 8, 1990) describes the process used to establish the remediation goal for environmental media as consisting of a two-step approach. First, an individual lifetime excess cancer risk of 10-6 is used as a starting point for establishing remediation goals for the risks from contaminants at specific sites. The second step involves consideration of a variety of site-specific or remedy-specific factors, which enter into the determination of where, within the risk range, the cleanup standard for a given contaminant will be established. The factors considered in the development of the Zone 1 and Zone 2 RODs and subsequent steps in the implementation of the RODs, such as the DVS, included an acceptable cumulative risk level of 10-4, which is the upper bound of the EPA acceptable risk range. From the Zone 2 ROD (Sect. 1.4): The remedial action objective (RAO) for Zone 2 is to Protect human health under an industrial land use to an excess cancer risk at or below 10-4. A comparable statement is included in the Zone 1 ROD. Zone 1 and 2 RAOs were developed by the DVS to support the future use of 10-4 cumulative ELCR across the EU as one of the decision criteria. To achieve the RAO, constituent-specific cleanup goals were developed.

Per the NCP preamble, these cleanup goals are to be based on a risk level of 10-6 for individual constituents unless site-specific or remedy-specific factors exist to suggest modifications are appropriate.

For the Zone 1 and Zone 2 RODs, these factors include the following:

Site-Specific Exposure Factors Exposure of the industrial worker is limited to soil-related pathways only (multiple media exposures are not applicable to this scenario).

The limited contaminant of concern (COC) list indicates that the potential for a large number of remedial goal exceedances was considered unlikely in the ROD, allowing for a higher risk level for each COC considered, while still achieving a cumulative risk <10-4. However, the ROD indicates that additional COCs were identified in four EUs within Zone 2, and additional COCs may be identified from the characterization sampling to be conducted for a wide range of potential contaminants.

Remedy-Specific Technical Factors Remedial goals for particular COCs were generated at a risk level >10-5 due to cost prohibitiveness and impracticality of remediation to a lower concentration.14-025(E)/092815 7-1

Remedial goals for particular COCs were revised to reflect consideration of elevated background levels.

Incorporation of these factors provided RLs that reflect the RAO of achieving a cumulative human health risk that will not exceed 10-4 for a given EU or FFA site. A summary of the risk evaluation results for the Zone 2 EUs addressed in this EBS is provided in Table 7.1.

Table 7.1. Risk evaluation results for the Former K-33 Area Decision rule evaluationa Risk Final status EU Associated FFA sites Max RL Avg RL Risk GW evaluation decisiona Z2-01 K-892-J Cooling Tower NFA NFA NFA NFA Passes NFA for soils K-792 Switchyard soils K-897-N Oil Containment Structure Z2-02 K-897-P Oil Containment NFA NFA NFA NFA Passes NFA for soils Structure K-1206-E Sandblasting Residue K-762 Switchyard Soils K-762 Valve Vaults 1 and 2 Z2-03 K-897-L Oil Containment NFA NFA NFA NFA Passes NFA for soils Structure K-897-M Oil Containment Structure Z2-04 None NFA NFA NFA NFA Passes NFA for soils Z2-05 None NFA NFA NFA NFA Passes NFA for soils K-33 Recirculating Cooling Water (RCW) Lines Leak Site K-892-G Cooling Tower Basin Z2-08 NFA NFA NFA NFA Passes NFA for soils K-892-H Cooling Tower Basins K-897-A Oil Containment Structure K-31 Recirculating Cooling Water Leak Sites K-861 Cooling Tower Basin Z2-09 K-897-C Oil Containment NFA NFA NFA NFA Passes NFA for soils Structure K-897-D Oil Containment Structure a

Decision rule, risk evaluation, and final status information are from:

Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2317&D2 (DOE 2006).

Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2723&D2 (DOE 2008a).

Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2590&D1 (DOE 2012).

Avg = average Max = maximum EU = exposure unit. NFA = No Further Action.

FFA = Federal Facilities Agreement. RL = remediation level.

GW = groundwater.14-025(E)/092815 7-2

An evaluation of risk from exposure to soils and subsurface structures is documented in the approved PCCRs for the EUs included in the proposed transfer footprint. The results of the risk evaluations for all seven EUs included in the Former K-33 Area transfer footprint indicate that the risk to an industrial worker is less than 1 x 10-4 ELCR, and the target organ HI is less than, or equal to, 1. Thus, all seven EUs meet the RAOs of the Zone 2 ROD, and no further action is necessary.

An evaluation of the potential impact on the DVS decisions was conducted for the five EUs that are only partially included in the transfer footprint due to the difference in transfer footprint and EU boundaries.

This evaluation is summarized in Chap. 6, and the results of the evaluation indicated the following:

EUs Z2-04, Z2-08, and Z2-09 are fully contained within the transfer footprint, and the results of the risk evaluation documented in the PCCR are valid for these three EUs.

The portion EU Z2-01 that has not been previously transferred contains all of the sample locations collected under the DVS, and based on the evaluation of these data, the results of the risk evaluation presented in the PCCR are valid for this partial EU.

The majority of EU Z2-02 has been previously transferred, and only the balance of the EU is included in the transfer footprint. However, based on the analysis discussed in Chap. 6, the results of the risk evaluation presented in the PCCR are valid for this partial EU.

A small portion of EU Z2-03 is not included in the transfer footprint. However, based on the analysis discussed in Chap. 6, the results of the risk evaluation presented in the PCCR are valid for this partial EU.

A small portion of EU Z2-05 is not included in the transfer footprint. The results of the evaluation of the PCCR findings, as discussed in Chap. 6, indicate that the results of the risk evaluation presented in the PCCR are valid for this partial EU.

In addition to the individual EU evaluations, a roving worker scenario was also evaluated in the risk assessment to evaluate exposure to a worker from adjacent property. The roving worker evaluation was based on certain assumptions, including: (1) the worker will not be exposed to areas that are inaccessible due to radiological or other controls, such as fences or other barriers, or postings that prevent casual entry by a worker at a nearby building; and (2) there are no hotspots of contamination at the Heritage Center that are accessible to these workers. The results of the roving worker risk screen, which used all available data, show that risks/hazards are within EPAs acceptable risk range.

As a part of the ongoing Heritage Center cleanup, soil data and confirmatory sampling continue to be collected and have been used to support numerous NFA decisions in Zone 1 and Zone 2 under an industrial land use risk scenario. All of the EU components within which the Former K-33 Area proposed transfer footprint is located have obtained NFA concurrence from the regulators. Based on these NFA determinations, and based on consideration of potential impacts to surface water, groundwater, and ecological receptors, the proposed transfer footprint is suitable for the intended unrestricted industrial use.14-025(E)/092815 7-3

8. REFERENCES BJC (Bechtel Jacobs Company LLC) 2009. Data Quality Objective Scoping Package for the K-31/K-33 Buildings (EUs Z2-04, Z2-05, and Z2-06) at the East Tennessee Technology Park, Oak Ridge, Tennessee, BJC/OR-3234, Bechtel Jacobs Company LLC, Oak Ridge, TN.

COE (U.S. Army Corps of Engineers) 1998. Personal communication with Bill Barnes of the U.S. Army Corps of Engineers on April 6, 1998.

DOE (U.S. Department of Energy) 1992. Federal Facility Agreement for the Oak Ridge Reservation, DOE/OR-1014, U.S. Department of Energy, U.S. Environmental Protection Agency, Region 4, and Tennessee Department of Environment and Conservation, U.S. Department of Energy, Washington, D.C.

DOE 1996. Groundwater Remedial Site Evaluation Report for the Oak Ridge K-25 Site, Oak Ridge, Tennessee, DOE/OR/01-1468V1&D1, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, May.

DOE 1997. Engineering Evaluation/Cost Analysis for Equipment Removal and Building Decontamination for Buildings K-29, K-31, and K-33, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/02-1579/D2, Jacobs Engineering, Oak Ridge, TN.

DOE 2002. Record of Decision for Interim Actions in Zone 1 of East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-1997&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, October.

DOE 2003. Environmental Assessment Addendum for the Proposed Title Transfer of East Tennessee Technology Park Land and Facilities, DOE/EA-1175-A, U.S. Department of Energy, Oak Ridge Operations, Oak Ridge, TN, July.

DOE 2005. Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2161&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, March.

DOE 2006a. DOE/OR/01-2317&D2. Fiscal Year 2006 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2317&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, December.

DOE 2006b. Phased Construction Completion Report for the Duct Island Area and K-901 Area in Zone 1, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2261&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, February.

DOE 2007a. Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2224&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN.

DOE 2007b. Remedial Action Work Plan for Dynamic Verification Strategy for Zone 1, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2182&D4, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, February.14-025(E)/092815 8-1

DOE 2007c. Fiscal Year 2006 Phased Construction Completion Report for the Low Risk/Low Complexity Facilities of the Remaining Facilities Demolition Project at the East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2327&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, April.

DOE 2008a. Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2723&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, March.

DOE 2008b. FY 2008 Phased Construction Completion Report for Exposure Units Z1-01, Z1-03, Z1-38, and Z1-49 in Zone 1 at the East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2367&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, March.

DOE 2009. Addendum to the Phased Construction Completion Report for the Duct Island Area and K-901 Area in Zone 1, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2261&D2/A1, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, December.

DOE 2010. Environmental Baseline Survey Report for the Proposed Transfer of the K-792 Switchyard Complex at the East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2347, U.S. Department of Energy, Office of Nuclear Fuel Supply, Oak Ridge, TN, January.

DOE 2011. Environmental Assessment, Transfer of Land and Facilities Within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee, DOE/EA-1640, U.S. Department of Energy, Oak Ridge Operations, Oak Ridge, TN, October.

DOE 2012a. Phased Construction Completion Report for Exposure Units Z2-04 and Z2-05 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2590&D1, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, November.

DOE 2012b. Phased Construction Completion Report for Building K-33 of the Remaining Facilities Demolition Project at the East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2541&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, Tennessee, November.

Energy Systems 1995. Site Descriptions of Environmental Restoration Units at the Oak Ridge K-25 Site, Oak Ridge, Tennessee, K/ER-47/R1, authored by P. L. Goddard, et al., Lockheed Martin Energy Systems, Inc., K-25 Site, Oak Ridge, TN, November.

EPA (U.S. Environmental Protection Agency) 1994. Radon Prevention in the Design and Construction of Schools and Other Large Buildings, EPA/625/R-92/016, U.S. Environmental Protection Agency, Office of Research and Development, Washington, D.C., June.

Lemiszki, P. J. (compiler) 1994. Geological Mapping of the Oak Ridge K-25 Site, Oak Ridge, Tennessee, K/ER-111, Environmental Restoration Division, Oak Ridge K-25 Site, Martin Marietta Energy Systems, Inc., Oak Ridge, TN.14-025(E)/092815 8-2

LSRS (LATA-Sharp Remediation Services) 2012. Final Report of Radiological Surveys and Soil Sampling for the K-33 Demolition and Disposition/Removal Project at East Tennessee Technology Park, LSRS-K33-FSR-RP-001, LATA-Sharp Remediation Services, LLC, Oak Ridge, TN, June.

ORNL (Oak Ridge National Laboratory) 1999. Oak Ridge Reservation Annual Site Environmental Report for 1998, ORNL/TM-1999/221, Oak Ridge National Laboratory, Oak Ridge, TN.

TVA (Tennessee Valley Authority) 1998. Personal communication with Jimmy Massengill of the Tennessee Valley Authority on April 6, 1998.

UCOR (URS l CH2M Oak Ridge LLC) 2012a. Personal communications with Bob Kiser (employed at the East Tennessee Technology Park) in August 2012.

UCOR 2012b. Baseline Environmental Analysis Report for the K-762 Switchyard, UCOR-4303, U.S. Department of Energy, Reservation Management Branch, Oak Ridge, TN, September.14-025(E)/092815 8-3

APPENDIX A REAL ESTATE ACQUISITION LETTER 14-025(E)/092815

A-3 A-4 APPENDIX B STUDY AREA MAP FROM RECORDS SEARCH 14-025(E)/092815

B-3

APPENDIX C PCCR APPROVAL LETTERS14-025(E)/092815

E.. OS2\. 054. oO'l'l DOE-06-092I j ~'\'--

1-10033-0256 STATE OF TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION DOE OVERSIGHT DIVISION 761 EMORY VALLEY ROAD OAK RIDGE. TENNESSEE 37830-7072 December 8, 2006 Mr. David Adler DOE FFA Project Manager PO Box 2001 Oak Ridge, TN 37830 Dear Mr. Adler TDEC Approval Letter PCCR for the Zone 2 Soils, Slabs, and Subsurface Structures East Tennessee Technology Park, Oak Ridge, Tennessee DOE/ORlOl-2317&D1, September 2006 The Tennessee Department of Envirorunent and Conservation, DOE Oversight Division has reviewed the above referenced document pursuant to the Federal Facility Agreement for the Oak Ridge Reservation. The State approves this document upon resolution of the EPA's comments.

Questions or comments concerning the contents of this letter should be directed to Erin Dixon or Thomas Gebhart at the above address or by phone at (865) 481-0995.

Res ,ctfully I ' ;J /CCrl.

a i

R. Dou ceo; v FFA Project Manager cc Jeff Crane-EPA Pat Halsey - DOE Donna Perez - DOE er779.10 RECEIVED DEC 1 92006 C-3

C-5 C-6 C-7

C-9 C-10 C-11

C-13 C-14 C-15

APPENDIX D LSRS AND ORISE SOIL CHARACTERIZATION DATA POST-SLAB REMOVAL 14-025(E)/092815

The following table represents the soil sample data collected from Exposure Units (EUs) Z2-04 and Z2-05 for the waste handling determination for the remediated soils and for the independent verification (IV) process, both of which are above and beyond the data collection conducted under the Dynamic Verification Strategy (DVS) process1. Although LATA-Sharp Remediation Services (LSRS) was not required by their contract to perform a final status survey of the sub-slab soil because soils are managed under the Zone 2 Record of Decision (ROD) [Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2161&D2 (DOE 2005)2], LSRS committed to conducting gamma walkover surveys as the slab was being removed. LSRS collected 26 biased soil samples to confirm the walkover survey results and to determine waste disposition paths for soil excavations identified as part of the survey.

These samples were analyzed for metals, PCBs, and 40K, with three of these samples also analyzed for volatile organic compounds (VOCs), to verify contamination levels in the soil remained less than the remediation levels (RLs) after the completion of the remedial action. Prior to remediation, three biased samples were also collected based on the results of the walkover survey to determine waste disposition paths for excavations identified during the survey. These samples were analyzed for metals, VOCs, semivolatile organic compounds, polychlorinated biphenyls (PCBs), and radionuclides. Seven biased samples were also collected post-remediation for waste handling purposes and analyzed for metals, PCBs, and radionuclides. The sample locations are shown as the sub-slab sample locations in Fig. 6.1.

The post-remediation samples showed no results greater than the average RLs.

As part of the IV process, nine sub-slab soil samples were also collected from judgmental locations where elevated direct gamma radiation levels suggested the possible presence of contamination. Soils associated with samples S0001 and S0002 (in the loading dock area) and samples S0008 and S0009 (from the former contaminated pipe run) were excavated as part of the remediation process and do not represent current soil conditions. Additionally, samples S0003 and S0004 are associated with a former waste line that was also removed by LSRS, meaning only samples S0005, S0006, and S0007 represent current residual concentrations. All results for these samples were well below the average RLs.

The following table presents the sample ID, analyte measured, result of the laboratory measurement, uncertainty associated with the measurement, units, sample collection date, contractor collecting the sample (Oak Ridge Institute for Science and Education [ORISE] or LSRS), purpose of the sample, and whether the sample was collected pre- or post-remediation. Oak Ridge Associated Universities concluded that concentrations in samples representing current conditions were small compared to the ROD criteria and did not require further evaluation, and the results indicate the sub-slab soils satisfy the Zone 2 ROD criteria.

1 A total of 59 systematic grid samples were collected from the exterior of the former K-33 building, and 74 additional biased samples were collected from the Class 2 and Class 3 soil units in Exposure Units Z2-04 and Z2-05 under the Dynamic Verification Strategy.

2 DOE 2005. Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee, DOE/OR/01-2161&D2, U.S. Department of Energy, Office of Environmental Management, Oak Ridge, TN, March.14-025(E)/092815 D-3

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation 5105R0001 Cesium-134 0.300 3.900 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105R0001 Cesium-137 0.600 1.400 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105R0001 Cobalt-60 -1.800 4.000 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105R0001 Total Uranium 992.000 74.000 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105R0001 Uranium-235 44.200 6.100 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105R0001 Uranium-238 439.000 37.000 pCi/Smear 1/19/2012 RAD ORISE IV Pre 5105S0001 Cesium-134 0.080 0.080 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0001 Cesium-137 0.050 0.070 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0001 Cobalt-60 -0.020 0.050 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0001 Total Uranium 1170.000 72.000 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0001 Uranium-235 43.800 2.400 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0001 Uranium-238 563.000 36.000 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Cesium-134 0.050 0.050 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Cesium-137 0.030 0.050 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Cobalt-60 -0.010 0.030 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Total Uranium 430.000 28.000 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Uranium-235 15.900 1.000 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0002 Uranium-238 207.000 14.000 pCi/g 1/19/2012 RAD ORISE IV Pre 5105S0003 Cesium-137 0.590 0.060 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0003 Cobalt-60 0.040 0.040 pCi/g 2/15/2012 RAD ORISE IV Pre D-5 5105S0003 Radium-226 0.830 0.080 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0003 Total Uranium 4.480 0.900 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0003 Uranium-235 0.100 0.090 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0003 Uranium-238 2.190 0.450 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Cesium-137 -0.260 0.070 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Cobalt-60 -0.070 0.090 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Radium-226 27.900 1.500 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Total Uranium 11.200 1.900 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Uranium-235 0.830 0.250 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0004 Uranium-238 5.170 0.960 pCi/g 2/15/2012 RAD ORISE IV Pre 5105S0005 Cesium-137 -0.010 0.020 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0005 Radium-226 0.820 0.070 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0005 Total Uranium 3.270 0.720 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0005 Uranium-235 0.170 0.170 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0005 Uranium-238 1.550 0.350 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Cesium-137 0.020 0.020 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Cobalt-60 0.020 0.020 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Radium-226 0.850 0.090 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Total Uranium 4.100 1.100 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Uranium-235 0.130 0.120 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0006 Uranium-238 1.990 0.560 pCi/g 3/16/2012 RAD ORISE IV Post 5105S0007 Neptunium-237 0.010 0.020 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0007 Radium-226 0.810 0.070 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0007 Thorium-230 3.800 5.700 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0007 Thorium-232 1.100 0.160 pCi/g 4/19/2012 RAD ORISE IV Post

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation 5105S0007 Total Uranium 2.200 0.810 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0007 Uranium-235 0.020 0.130 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0007 Uranium-238 1.090 0.400 pCi/g 4/19/2012 RAD ORISE IV Post 5105S0008 Neptunium-237 0.030 0.050 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Radium-226 0.510 0.060 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Thorium-230 -12.000 12.000 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Thorium-232 0.700 0.130 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Total Uranium 235.000 15.000 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Uranium-235 7.470 0.470 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0008 Uranium-238 113.800 7.400 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Neptunium-237 -0.030 0.070 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Radium-226 0.720 0.080 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Thorium-230 6.000 14.000 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Thorium-232 0.930 0.150 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Total Uranium 156.000 10.000 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Uranium-235 7.740 0.500 pCi/g 4/24/2012 RAD ORISE IV Pre 5105S0009 Uranium-238 74.200 5.000 pCi/g 4/24/2012 RAD ORISE IV Pre K33PIPE001 Arsenic 110.000 mg/kg D 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 Barium 0.840 mg/kg D 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 Cadmium 17.000 mg/kg UD 1/30/2012 Metals LSRS Waste Disposition Pre D-6 K33PIPE001 Chromium 75.000 mg/kg D 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 Lead 11.000 mg/kg D 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 Selenium 4.300 mg/kg UD 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 Silver 1.700 mg/kg UD 1/30/2012 Metals LSRS Waste Disposition Pre K33PIPE001 PCB-1016 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1221 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1232 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1242 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1248 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1254 0.700 mg/kg 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1260 0.060 mg/kg 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 PCB-1262 0.010 mg/kg U 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 Total PCBs 0.130 mg/kg 1/30/2012 PCBs LSRS Waste Disposition Pre K33PIPE001 Cesium-137 0.012 0.029 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Gross Alpha 11.177 3.638 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Gross Beta 17.876 5.753 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Neptunium-237 0.054 0.071 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Potassium-40 0.156 0.339 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Technetium-99 16.288 1.052 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Thorium-228 0.000 0.042 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Thorium-229 0.012 0.032 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Thorium-230 0.091 0.080 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Thorium-232 0.028 0.048 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Uranium-232 0.013 0.037 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Uranium-234 8.398 1.172 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33PIPE001 Uranium-235 0.934 0.322 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 Uranium-238 6.799 1.133 pCi/g 1/30/2012 RAD LSRS Waste Disposition Pre K33PIPE001 2-Methylnaphthalene 197.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Acenaphthene 407.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Acenaphthylene 540.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Anthracene 6550.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Benzo(a)anthracene 25000.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Benzo(a)pyrene 18700.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Benzo(b)fluoranthene 24500.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Benzo(g,h,i)perylene 7270.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Benzo(k)fluoranthene 9560.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Carbazole 11800.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Chrysene 20900.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Dibenzofuran 1310.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Fluoranthene 56900.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Fluorine 2000.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Indeno(1,2,3-cd)pyrene 8350.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Naphthalene 421.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Phenanthrene 38400.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001 Pyrene 34100.000 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre D-7 K33PIPE001-VOC-MeOH 1,1,1-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,1,2,2,-Tetrachloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,1,2-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,1-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,1-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,2-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 1,2-Dichloropropane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 2-Butanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 2-Hexanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH 4-Methyl-2-pentanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Acetone ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Benzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Bromodichloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Bromoform ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Bromomethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Carbon Disulfide ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Carbon tetrachloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Chlorobenzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Chloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Chloroform ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Chloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH cis-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH cis-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Dibromochloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Ethylbenzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33PIPE001-VOC-MeOH Methylene Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Styrene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Tetrachloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Toluene 25.300 g/kg 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH trans-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH trans-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Trichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Vinyl Acetate ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Vinyl Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33PIPE001-VOC-MeOH Xylenes ND g/kg U 1/30/2012 VOC/SVOC LSRS Waste Disposition Pre K33-WM-032112-03 Arsenic 1.500 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Barium 53.000 mg/kg D 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Cadmium 0.580 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Chromium 10.000 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Lead 2.800 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Mercury 2.170 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Selenium 0.580 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 Silver 0.230 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-03 PCB-1016 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1221 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post D-8 K33-WM-032112-03 PCB-1232 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1242 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1248 3.200 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1254 20.000 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1260 1.300 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1262 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 PCB-1268 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 Total PCBs 24.000 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-03 Cesium-137 0.019 0.041 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Gross Alpha 7.594 1.555 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Gross Beta 7.462 1.568 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Neptunium-237 0.022 0.061 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Potassium-40 9.223 1.556 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Technetium-99 1.965 0.805 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Thorium-228 0.625 0.242 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Thorium-229 -0.023 0.043 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Thorium-230 1.013 0.275 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Thorium-232 0.644 0.206 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Thorium-234 3.497 1.081 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Uranium-232 0.075 0.070 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Uranium-234 4.915 0.711 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Uranium-235 0.488 0.182 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-03 Uranium-238 4.326 0.650 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Arsenic 1.500 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Barium 62.000 mg/kg D 3/21/2012 Metals LSRS Waste Handling Post

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33-WM-032112-04 Cadmium 0.530 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Chromium 12.000 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Lead 2.600 mg/kg 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Mercury 0.100 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Selenium 0.530 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 Silver 0.210 mg/kg U 3/21/2012 Metals LSRS Waste Handling Post K33-WM-032112-04 PCB-1016 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1221 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1232 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1242 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1248 7.200 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1254 27.000 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1260 2.100 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1262 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 PCB-1268 0.170 mg/kg U 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 Total PCBs 36.000 mg/kg 3/21/2012 PCBs LSRS Waste Handling Post K33-WM-032112-04 Cesium-137 0.019 0.044 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Gross Alpha 46.612 3.982 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Gross Beta 38.095 2.590 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Neptunium-237 -0.018 0.040 pCi/g 3/21/2012 RAD LSRS Waste Handling Post D-9 K33-WM-032112-04 Potassium-40 7.656 1.342 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Technetium-99 4.186 0.807 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Thorium-228 0.662 0.254 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Thorium-229 0.007 0.061 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Thorium-230 1.364 0.405 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Thorium-232 0.668 0.256 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Thorium-234 20.980 2.788 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Uranium-234 33.442 4.638 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Uranium-235 2.961 0.659 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032112-04 Uranium-238 31.553 4.391 pCi/g 3/21/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Arsenic 0.950 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Barium 30.000 mg/kg D 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Cadmium 0.550 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Chromium 17.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Lead 9.600 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Mercury 0.100 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Selenium 0.540 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 Silver 0.210 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-05 PCB-1016 0.030 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1221 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1232 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1242 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1248 0.100 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1254 0.250 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1260 0.220 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33-WM-032912-05 PCB-1262 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 PCB-1268 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 Total PCBs 0.600 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-05 Cesium-137 0.069 0.189 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Gross Alpha 4.050 1.090 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Gross Beta 2.330 0.759 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Neptunium-237 0.024 0.044 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Potassium-40 16.420 4.320 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Technetium-99 0.944 0.792 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Thorium-228 0.890 0.293 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Thorium-229 0.057 0.063 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Thorium-230 1.154 0.355 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Thorium-232 0.949 0.304 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Thorium-234 1.556 3.161 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Uranium-232 0.027 0.041 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Uranium-234 0.844 0.231 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Uranium-235 0.067 0.074 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-05 Uranium-238 1.234 0.330 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Arsenic 0.580 mg/kg 3/29/2012 Metals LSRS Waste Handling Post D-10 K33-WM-032912-06 Barium 21.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Cadmium 0.092 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Chromium 11.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Lead 8.800 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Mercury 0.090 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Selenium 0.570 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 Silver 0.230 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-06 PCB-1016 0.040 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1221 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1232 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1242 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1248 0.050 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1254 0.090 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1260 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1262 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 PCB-1268 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 Total PCBs 0.180 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-06 Cesium-137 0.037 0.239 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Gross Alpha 1.583 0.564 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Gross Beta 1.128 0.616 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Neptunium-237 0.014 0.040 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Potassium-40 13.850 5.839 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Technetium-99 0.759 0.637 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Thorium-228 1.108 0.286 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Thorium-229 0.058 0.068 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Thorium-230 1.178 0.297 pCi/g 3/29/2012 RAD LSRS Waste Handling Post

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33-WM-032912-06 Thorium-232 1.200 0.301 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Uranium-234 0.664 0.188 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Uranium-235 0.059 0.065 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-06 Uranium-238 0.661 0.187 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Arsenic 2.800 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Barium 21.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Cadmium 0.091 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Chromium 15.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Lead 4900.000 mg/kg D 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Mercury 0.150 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Selenium 0.570 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 Silver 0.230 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-07 PCB-1016 0.040 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1221 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1232 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1242 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1248 0.050 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1254 0.090 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1260 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post D-11 K33-WM-032912-07 PCB-1262 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 PCB-1268 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 Total PCBs 0.180 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-07 Cesium-137 -0.026 0.198 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Gross Alpha 3.331 0.679 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Gross Beta 2.030 0.630 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Neptunium-237 -0.010 0.044 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Thorium-228 1.366 0.360 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Thorium-229 0.076 0.074 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Thorium-230 1.346 0.355 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Thorium-232 1.248 0.337 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Thorium-234 -2.212 3.512 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Uranium-232 0.021 0.033 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Uranium-234 0.845 0.237 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Uranium-235 0.087 0.084 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-07 Uranium-238 1.067 0.268 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Arsenic 1.300 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Barium 30.000 mg/kg D 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Cadmium 0.085 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Chromium 11.000 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Lead 6.900 mg/kg 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Mercury 0.100 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Selenium 0.530 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 Silver 0.210 mg/kg U 3/29/2012 Metals LSRS Waste Handling Post K33-WM-032912-08 PCB-1016 0.030 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1221 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation K33-WM-032912-08 PCB-1232 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1242 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1248 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1254 0.120 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1260 0.120 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1262 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 PCB-1268 0.020 mg/kg U 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 Total PCBs 0.270 mg/kg 3/29/2012 PCBs LSRS Waste Handling Post K33-WM-032912-08 Cesium-137 0.113 0.188 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Gross Alpha 1.636 0.848 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Gross Beta 2.651 0.723 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Potassium-40 21.170 5.234 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Thorium-228 0.838 0.305 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Thorium-229 0.032 0.051 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Thorium-230 1.652 0.480 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Thorium-232 0.801 0.300 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Uranium-232 0.019 0.043 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Uranium-234 0.788 0.222 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-032912-08 Uranium-235 0.047 0.058 pCi/g 3/29/2012 RAD LSRS Waste Handling Post D-12 K33-WM-032912-08 Uranium-238 0.654 0.200 pCi/g 3/29/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Cesium-137 0.100 0.116 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Gross Alpha 7.860 1.173 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Gross Beta 13.383 1.063 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Neptunium-237 -0.012 0.028 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Potassium-40 14.060 3.391 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Technetium-99 0.442 0.734 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Thorium-228 1.643 0.423 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Thorium-229 -0.015 0.035 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Thorium-230 2.102 0.502 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Thorium-232 1.415 0.365 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Thorium-234 3.247 3.105 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Uranium-232 0.013 0.036 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Uranium-234 1.791 0.354 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Uranium-235 0.167 0.105 pCi/g 4/16/2012 RAD LSRS Waste Handling Post K33-WM-041612-09 Uranium-238 1.819 0.359 pCi/g 4/16/2012 RAD LSRS Waste Handling Post MATL-030812-02 Arsenic 28.000 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Barium 15.000 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Cadmium 0.270 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Chromium 340.000 mg/kg D 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Lead 90.000 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Mercury 0.130 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Selenium 0.570 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 Silver 0.230 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre MATL-030812-02 PCB-1016 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1221 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation MATL-030812-02 PCB-1232 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1242 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1248 11.000 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1254 28.000 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1260 12.000 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1262 1.700 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 PCB-1268 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 Total PCBs 51.000 mg/kg 3/8/2012 PCBs LSRS Waste Disposition Pre MATL-030812-02 RAD Cesium-137 0.200 0.590 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Gross Alpha 1929.899 193.357 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Gross Beta 1139.247 135.206 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Neptunium-237 0.680 1.165 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Potassium-40 2.959 3.487 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Technetium-99 3726.432 21.823 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Thorium-228 0.174 0.252 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Thorium-229 0.172 0.237 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Thorium-230 0.401 0.328 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Thorium-232 0.122 0.209 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Thorium-234 1833.000 159.900 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre D-13 MATL-030812-02 RAD Uranium-232 0.128 4.982 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Uranium-234 843.199 128.318 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Uranium-235 69.682 30.430 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02 RAD Uranium-238 789.120 121.991 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1,1-Trichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1,2,2,-Tetrachloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1,2-Trichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1'-Biphenyl 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1-Dichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,1-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,2,4,5-Tetrachlorobenzene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,2-Dichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 1,2-Dichloropropane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,3,4,6-Tetrachlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4,5-Trichlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4,6-Trichlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4-Dichlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4-Dimethylphenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4-Dinitrophenol 5000000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,4-Dinitrotoluene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2,6-Dinitrotoluene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Butanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Chloronaphthalene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Chlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Hexanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Methyl-4,6-dinitrophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation MATL-030812-02SVOC/VOC 2-Methylnaphthalene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 2-Nitrophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 3,3'-Dichlorobenzidine 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Bromophenylphenylether 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Chloro-3-methylphenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Chloroaniline 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Chlorophenylphenylether 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Methyl-2-pentanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC 4-Nitrophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Acenaphthene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Acenaphthylene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Acetone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Acetophenone 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Anthracene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Atrazine 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzaldehyde 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzo(a)anthracene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzo(a)pyrene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre g/kg D-14 MATL-030812-02SVOC/VOC Benzo(b)fluoranthene 250000.000 U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzo(g,h,i)perylene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Benzo(k)fluoranthene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC bis(2-Chloroethoxy)methane 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC bis(2-Chloroethyl)ether 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC bis(2-Chloroisopropyl)ether 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC bis(2-Ethylhexyl)phthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Bromodichloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Bromoform 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Bromomethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Butylbenzylphthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Caprolactam 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Carbazole 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Carbon Disulfide 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Carbon tetrachloride 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Chlorobenzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Chloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Chloroform 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Chloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Chrysene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC cis-1,2-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC cis-1,3-Dichloropropylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Dibenzo(a,h)anthracene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Dibenzofuran 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Dibromochloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Diethylphthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation MATL-030812-02SVOC/VOC Dimethylphthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Di-n-butylphthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Di-n-octylphthalate 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Diphenylamine 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Ethylbenzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Fluoranthene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Fluorine 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Hexachlorobenzene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Hexachlorobutadiene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Hexachlorocyclopentadiene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Hexachloroethane 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Indeno(1,2,3-cd)pyrene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Isophorone 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC m,p-Cresol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Methylene Chloride 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC m-Nitroaniline 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Naphthalene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Nitrobenzene 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC N-Nitrosodipropylamine 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre g/kg D-15 MATL-030812-02SVOC/VOC o-Cresol 2500000.000 U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC o-Nitroaniline 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Pentachlorophenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Phenanthrene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Phenol 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC p-Nitroaniline 2500000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Pyrene 250000.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Styrene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Tetrachloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Toluene 38.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC trans-1,2-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC trans-1,3-Dichloropropylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Trichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Vinyl Acetate 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Vinyl Chloride 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre MATL-030812-02SVOC/VOC Xylenes 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01 Arsenic 280.000 mg/kg D 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Barium 1.500 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Cadmium 0.980 mg/kg 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Chromium 290.000 mg/kg D 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Lead 1200.000 mg/kg D 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Mercury 0.076 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Selenium 1.200 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 Silver 0.470 mg/kg U 3/8/2012 Metals LSRS Waste Disposition Pre PIPE-030812-01 PCB-1016 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1221 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation PIPE-030812-01 PCB-1232 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1242 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1248 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1254 2.100 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1260 0.600 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1262 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 PCB-1268 0.170 mg/kg UD 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 Total PCBs 3.000 mg/kg D 3/8/2012 PCBs LSRS Waste Disposition Pre PIPE-030812-01 RAD Cesium-137 0.022 0.173 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Gross Alpha 9.028 6.416 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Gross Beta 842.694 33.632 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Neptunium-237 0.235 0.525 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Potassium-40 0.194 0.973 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Technetium-99 565.464 4.200 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Thorium-228 0.028 0.055 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Thorium-229 0.075 0.168 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Thorium-230 0.166 0.109 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Thorium-232 0.004 0.032 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Thorium-234 495.200 46.600 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre D-16 PIPE-030812-01 RAD Uranium-232 0.611 5.216 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Uranium-234 1.212 1.069 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Uranium-235 1.352 1.306 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01 RAD Uranium-238 0.400 0.681 pCi/g 3/8/2012 RAD LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1,1-Trichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1,2,2,-Tetrachloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1,2-Trichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1'-Biphenyl 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1-Dichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,1-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,2,4,5-Tetrachlorobenzene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,2-Dichloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 1,2-Dichloropropane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,3,4,6-Tetrachlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4,5-Trichlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4,6-Trichlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4-Dichlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4-Dimethylphenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4-Dinitrophenol 11800.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,4-Dinitrotoluene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2,6-Dinitrotoluene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Butanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Chloronaphthalene 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Chlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Hexanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Methyl-4,6-dinitrophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation PIPE-030812-01SVOC/VOC 2-Methylnaphthalene 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 2-Nitrophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 3,3'-Dichlorobenzidine 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Bromophenylphenylether 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Chloro-3-methylphenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Chloroaniline 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Chlorophenylphenylether 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Methyl-2-pentanone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC 4-Nitrophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Acenaphthene 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Acenaphthylene 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Acetone 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Acetophenone 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Anthracene 900.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Atrazine 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzaldehyde 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzo(a)anthracene 9730.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzo(a)pyrene 10500.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre g/kg D-17 PIPE-030812-01SVOC/VOC Benzo(b)fluoranthene 17000.000 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzo(g,h,i)perylene 6810.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Benzo(k)fluoranthene 5540.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC bis(2-Chloroethoxy)methane 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC bis(2-Chloroethyl)ether 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC bis(2-Chloroisopropyl)ether 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC bis(2-Ethylhexyl)phthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Bromodichloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Bromoform 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Bromomethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Butylbenzylphthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Caprolactam 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Carbazole 294.000 g/kg J 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Carbon Disulfide 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Carbon tetrachloride 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Chlorobenzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Chloroethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Chloroform 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Chloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Chrysene 10900.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC cis-1,2-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC cis-1,3-Dichloropropylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Dibenzo(a,h)anthracene 2500.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Dibenzofuran 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Dibromochloromethane 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Diethylphthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation PIPE-030812-01SVOC/VOC Dimethylphthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Di-n-butylphthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Di-n-octylphthalate 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Diphenylamine 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Ethylbenzene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Fluoranthene 12200.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Fluorine 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Hexachlorobenzene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Hexachlorobutadiene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Hexachlorocyclopentadiene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Hexachloroethane 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Indeno(1,2,3-cd)pyrene 6120.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Isophorone 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC m,p-Cresol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Methylene Chloride 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC m-Nitroaniline 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Naphthalene 588.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Nitrobenzene 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC N-Nitrosodipropylamine 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre g/kg D-18 PIPE-030812-01SVOC/VOC o-Cresol 5880.000 U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC o-Nitroaniline 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Pentachlorophenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Phenanthrene 3380.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Phenol 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC p-Nitroaniline 5880.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Pyrene 15000.000 g/kg 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Styrene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Tetrachloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Toluene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC trans-1,2-Dichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC trans-1,3-Dichloropropylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Trichloroethylene 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Vinyl Acetate 500.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Vinyl Chloride 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre PIPE-030812-01SVOC/VOC Xylenes 100.000 g/kg U 3/8/2012 VOC/SVOC LSRS Waste Disposition Pre SSOIL001 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Barium 0.580 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Cadmium 0.023 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Chromium 0.038 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Lead 0.077 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 Uranium 3.900 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL001 PCB-1016 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL001 PCB-1221 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1232 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1242 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1248 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1254 0.880 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1260 1.800 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1262 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 PCB-1268 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 Total PCBs 2.700 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL001D Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Barium 0.530 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Cadmium 0.039 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Chromium 0.025 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Lead 0.062 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL001D Uranium 4.200 mg/kg 1/14/2012 Metals LSRS Judgmental Pre D-19 SSOIL001D PCB-1016 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1221 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1232 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1242 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1248 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1254 0.900 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1260 1.600 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1262 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D PCB-1268 0.170 mg/kg UD 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D Total PCBs 2.500 mg/kg D 1/14/2012 PCBs LSRS Judgmental Pre SSOIL001D Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL002 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Barium 0.850 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Cadmium 0.005 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Chromium 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Lead 0.062 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 Uranium 5.000 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL002 PCB-1016 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1221 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1232 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1242 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1248 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1254 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL002 PCB-1260 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1262 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 PCB-1268 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 Total PCBs 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL002 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL002V 1,1,1-Trichloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,1,2,2-Tetrachloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,1,2-Trichloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,1-Dichloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,1-Dichloroethene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,2-Dichloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,2-Dichloroethane-d4 44.000 g/kg 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 1,2-Dichloropropane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 2-Butanone 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 2-Hexanone 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 4-Bromofluorobenzene 43.600 g/kg 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V 4-Methyl-2-pentanone 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Acetone 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Benzene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre g/kg D-20 SSOIL002V Bromodichloromethane 0.926 U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Bromoform 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Bromomethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Carbon disulfide 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Carbon tetrachloride 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Chlorobenzene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Chloroethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Chloroform 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Chloromethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V cis-1,2-Dichloroethene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V cis-1,3-Dichloropropene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Dibromochloromethane 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Ethylbenzene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Methylene chloride 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Styrene 0.509 g/kg J 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Tetrachloroethene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Toluene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Toluene-d8 49.000 g/kg 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Total Xylene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V trans-1,2-Dichloroethene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V trans-1,3-Dichloropropene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Trichloroethene 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Vinyl acetate 4.630 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL002V Vinyl chloride 0.926 g/kg U 1/14/2012 VOC/SVOC LSRS Judgmental Pre SSOIL003 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Barium 0.520 mg/L 1/14/2012 Metals LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL003 Cadmium 0.005 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Chromium 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Lead 0.062 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 Uranium 3.400 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL003 PCB-1016 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1221 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1232 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1242 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1248 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1254 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1260 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1262 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 PCB-1268 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 Total PCBs 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL003 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL004 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre D-21 SSOIL004 Barium 0.960 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Cadmium 0.005 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Chromium 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Lead 0.780 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 Uranium 3.300 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL004 PCB-1016 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1221 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1232 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1242 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1248 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1254 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1260 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1262 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 PCB-1268 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 Total PCBs 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL004 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL005 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Barium 0.450 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Cadmium 0.005 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Chromium 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Lead 0.062 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL005 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 Uranium 2.400 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL005 PCB-1016 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1221 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1232 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1242 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1248 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1254 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1260 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1262 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 PCB-1268 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 Total PCBs 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL005 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL006 Arsenic 0.010 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Barium 0.770 mg/L 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Cadmium 0.005 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Chromium 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Lead 0.062 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Mercury 0.001 mg/L U 1/14/2012 Metals LSRS Judgmental Pre D-22 SSOIL006 Selenium 0.031 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Silver 0.012 mg/L U 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 Uranium 3.900 mg/kg 1/14/2012 Metals LSRS Judgmental Pre SSOIL006 PCB-1016 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1221 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1232 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1242 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1248 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1254 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1260 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1262 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 PCB-1268 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 Total PCBs 0.020 mg/kg U 1/14/2012 PCBs LSRS Judgmental Pre SSOIL006 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL006 Potassium-40 0.000 0.000 Ci/g 1/14/2012 RAD LSRS Judgmental Pre SSOIL007 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Barium 0.180 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 Uranium 5.100 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL007 PCB-1016 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL007 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1254 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1260 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 Total PCBs 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL007 Potassium-40 9.816 2.562 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL008 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Barium 0.420 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 Uranium 1.800 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL008 PCB-1016 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre D-23 SSOIL008 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1254 0.190 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1260 0.150 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 Total PCBs 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 Total PCBs 0.340 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL008 Potassium-40 8.706 2.312 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL009 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Barium 0.250 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 Uranium 2.500 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL009 PCB-1016 0.020 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1254 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL009 PCB-1260 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 Total PCBs 0.020 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL009 Potassium-40 11.690 2.849 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL010 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Barium 0.340 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 Uranium 0.460 mg/kg U 1/30/2012 Metals LSRS Judgmental Pre SSOIL010 PCB-1016 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre D-24 SSOIL010 PCB-1254 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1260 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL010 Potassium-40 5.108 2.214 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL011 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Barium 0.350 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 Uranium 1500.000 mg/kg D 1/30/2012 Metals LSRS Judgmental Pre SSOIL011 PCB-1016 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1221 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1232 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1242 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1248 0.170 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1254 0.450 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL011 PCB-1260 0.150 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1260 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1262 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 PCB-1268 0.170 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 Total PCBs 0.770 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL011 Potassium-40 6.028 1.929 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL012 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Barium 0.460 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL012 Uranium 1.600 mg/kg 1/30/2012 Metals LSRS Judgmental Pre D-25 SSOIL012 PCB-1016 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1254 0.110 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1260 0.070 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 Total PCBs 0.180 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL012 Potassium-40 8.379 2.337 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL013 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Barium 0.280 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 Uranium 1.100 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL013 PCB-1016 0.020 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1254 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL013 PCB-1260 0.070 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 Total PCBs 0.090 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL013 Potassium-40 8.010 2.050 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,1,1-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,1,2,2,-Tetrachloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,1,2-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,1-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,1-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,2-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 1,2-Dichloropropane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 2-Butanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 2-Hexanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH 4-Methyl-2-pentanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Acetone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Benzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Bromodichloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Bromoform ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre g/kg D-26 SSOIL013DUP-VOC-MeOH Bromomethane ND U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Carbon Disulfide ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Carbon tetrachloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Chlorobenzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Chloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Chloroform ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Chloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH cis-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH cis-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Dibromochloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Ethylbenzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Methylene Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Styrene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Tetrachloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Toluene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH trans-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH trans-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Trichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Vinyl Acetate ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Vinyl Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013DUP-VOC-MeOH Xylenes ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,1,1-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,1,2,2,-Tetrachloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,1,2-Trichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,1-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,1-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL013-VOC-MeOH 1,2-Dichloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 1,2-Dichloropropane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 2-Butanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 2-Hexanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH 4-Methyl-2-pentanone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Acetone ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Benzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Bromodichloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Bromoform ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Bromomethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Carbon Disulfide ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Carbon tetrachloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Chlorobenzene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Chloroethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Chloroform ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Chloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH cis-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH cis-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Dibromochloromethane ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre g/kg D-27 SSOIL013-VOC-MeOH Ethylbenzene ND U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Methylene Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Styrene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Tetrachloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Toluene 45.100 g/kg 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH trans-1,2-Dichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH trans-1,3-Dichloropropylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Trichloroethylene ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Vinyl Acetate ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Vinyl Chloride ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL013-VOC-MeOH Xylenes ND g/kg U 1/30/2012 VOC/SVOC LSRS Judgmental Pre SSOIL014 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Barium 0.550 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 Uranium 0.520 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL014 PCB-1016 0.030 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1254 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL014 PCB-1260 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 Total PCBs 0.030 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL014 Potassium-40 5.590 2.596 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL015 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Barium 0.340 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Cadmium 0.005 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Lead 0.062 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 Uranium 0.800 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL015 PCB-1016 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1221 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1232 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1242 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1248 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre D-28 SSOIL015 PCB-1254 2.200 mg/kg D 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1260 0.420 mg/kg D 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1262 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 PCB-1268 0.080 mg/kg UD 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 Total PCBs 2.600 mg/kg D 1/30/2012 PCBs LSRS Judgmental Pre SSOIL015 Potassium-40 5.520 1.955 pCi/g 1/30/2012 RAD LSRS Judgmental Pre SSOIL016 Arsenic 0.010 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Barium 0.260 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Cadmium 0.065 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Chromium 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Lead 1.600 mg/L 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Mercury 0.001 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Selenium 0.031 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Silver 0.120 mg/L U 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 Uranium 5.300 mg/kg 1/30/2012 Metals LSRS Judgmental Pre SSOIL016 PCB-1016 0.040 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1221 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1232 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1242 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1248 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1254 0.200 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1260 0.160 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1262 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 PCB-1268 0.020 mg/kg U 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 Total PCBs 0.400 mg/kg 1/30/2012 PCBs LSRS Judgmental Pre SSOIL016 Potassium-40 9.872 2.457 pCi/g 1/30/2012 RAD LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL017 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Barium 0.270 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 Uranium 3.800 mg/kg 3/20/2012 Metals LSRS Judgmental Pre SSOIL017 PCB-1016 0.030 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL017 PCB-1248 0.070 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL017 PCB-1254 0.110 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL017 PCB-1260 0.090 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL017 Total PCBs 0.300 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL017 Potassium-40 0.860 16.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL017V 1,1,1-Trichloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 1,1,2,2,-Tetrachloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 1,1,2-Trichloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 1,1-Dichloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre g/kg D-29 SSOIL017V 1,1-Dichloroethylene 123.000 U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 1,2-Dichloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 1,2-Dichloropropane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 2-Butanone 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 2-Hexanone 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V 4-Methyl-2-pentanone 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Acetone 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Benzene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Bromodichloromethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Bromoform 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Bromomethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Carbon Disulfide 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Carbon tetrachloride 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Chlorobenzene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Chloroethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Chloroform 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Chloromethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V cis-1,2-Dichloroethylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V cis-1,3-Dichloropropylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Dibromochloromethane 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Ethylbenzene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Methylene Chloride 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Styrene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Tetrachloroethylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Toluene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V trans-1,2-Dichloroethylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL017V trans-1,3-Dichloropropylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Trichloroethylene 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Vinyl Acetate 616.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Vinyl Chloride 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL017V Xylenes 123.000 g/kg U 3/20/2012 VOC/SVOC LSRS Judgmental Pre SSOIL018 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Barium 0.200 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Lead 4.000 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 Uranium 2.800 mg/kg 3/20/2012 Metals LSRS Judgmental Pre SSOIL018 PCB-1016 0.020 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1248 0.210 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre D-30 SSOIL018 PCB-1254 0.050 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1260 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 Total PCBs 0.280 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL018 Potassium-40 -0.640 18.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL019 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Barium 0.190 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 Uranium 4.700 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL019 PCB-1016 0.020 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1248 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1254 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1260 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 Total PCBs 0.020 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL019 Potassium-40 -1.900 19.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL020 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Barium 0.280 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 Uranium 4.900 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL020 PCB-1016 0.030 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1248 0.110 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1254 0.060 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1260 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL020 Total PCBs 0.200 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre D-31 SSOIL020 Potassium-40 15.000 20.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL021 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Barium 0.320 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 Uranium 160.000 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL021 PCB-1016 0.030 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1248 0.140 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1254 0.270 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1260 0.260 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 Total PCBs 0.700 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL021 Potassium-40 5.900 18.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL022 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Barium 0.840 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL022 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 Uranium 26.000 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL022 PCB-1016 0.080 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1248 0.190 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1254 0.260 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1260 0.180 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 Total PCBs 0.710 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL022 Potassium-40 -4.700 19.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL023 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Barium 0.320 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre D-32 SSOIL023 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 Uranium 340.000 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL023 PCB-1016 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1221 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1232 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1242 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1248 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1254 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1260 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1262 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 PCB-1268 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 Total PCBs 0.170 mg/kg UD 3/20/2012 PCBs LSRS Judgmental Pre SSOIL023 Potassium-40 2.600 18.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL024 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Barium 0.170 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL024 Uranium 2.500 mg/kg 3/20/2012 Metals LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL024 PCB-1016 1.100 mg/kg D 3/20/2012 PCBs LSRS Judgmental Pre SSOIL024 PCB-1248 1.700 mg/kg D 3/20/2012 PCBs LSRS Judgmental Pre SSOIL024 PCB-1254 1.000 mg/kg D 3/20/2012 PCBs LSRS Judgmental Pre SSOIL024 Total PCBs 3.800 mg/kg D 3/20/2012 PCBs LSRS Judgmental Pre SSOIL024 Potassium-40 5.200 17.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL025 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Barium 0.100 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 Uranium 5.800 mg/kg D 3/20/2012 Metals LSRS Judgmental Pre SSOIL025 PCB-1016 0.070 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1248 0.100 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre D-33 SSOIL025 PCB-1254 0.090 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1260 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 Total PCBs 0.260 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL025 Potassium-40 5.600 23.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre SSOIL026 Arsenic 0.010 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Barium 0.420 mg/L 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Cadmium 0.005 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Chromium 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Lead 0.062 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Mercury 0.002 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Selenium 0.031 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Silver 0.120 mg/L U 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 Uranium 2.100 mg/kg 3/20/2012 Metals LSRS Judgmental Pre SSOIL026 PCB-1016 0.040 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1221 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1232 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1242 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1248 0.110 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1254 0.150 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1260 0.190 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1262 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 PCB-1268 0.020 mg/kg U 3/20/2012 PCBs LSRS Judgmental Pre

Sample 14-025(E)/092815 collection Parameter Pre-/post-Sample ID Chemical name Result Uncertainty Units Qualifier date group Contractor Purpose remediation SSOIL026 Total PCBs 0.490 mg/kg 3/20/2012 PCBs LSRS Judgmental Pre SSOIL026 Potassium-40 -5.000 18.000 pCi/g U 3/20/2012 RAD LSRS Judgmental Pre LSRS = Lata-Sharp Remediation Services, LLC.

mg/kg = milligrams per kilogram.

mg/L = milligrams per liter.

ND = not detected.

ORISE = Oak Ridge Institute for Science and Education.

PCB = polychlorinated biphenyl.

pCi/g = picocuries per gram.

RAD = radionuclide.

SVOC = semivolatile organic compound.

VOC = volatile organic compound.

Ci/g = microcuries per gram.

g/kg = micrograms per kilogram.

D-34

DOE/OR/01-2658 FINAL - CONCURRED DISTRIBUTION FileEMEF DMCRC