aar corp., remedial work plan. - nrc: home page · 2013. 7. 9. · rand r) feeeee, manageer...

OjAAR CORP.Writer's Direct Dial630-227-2049

Writer's Direct Fax No.630-227-2058

June 19, 2013

VIA FEDERAL EXPRESS

ATTN: Document Control DeskU.S. Nuclear Regulatory Commission11555 Rockville PikeRockville, MD 20852

Re: Remedial Work Plan

Ladies and Gentlemen:

AAR is pleased to submit the enclosed Remedial Work Plan for Regulatory Review inconnection with AAR's Western Parcel Strategic Waste Excavation and Site Restorationfor 12633 Inkster Road, Livonia, Michigan (the "Plan"). We believe the Plan is in linewith our past discussions.

Please contact us with any questions or comments you may have as you review thePlan. We look forward to the NRC's sign off. Thank you.

Very truly yours,

AAR CORP.

By: 0 A U~mDonaldVilimAssistan General Counsel

DJV:uc

Enclosure

cc: Theodore B. Smith, Mail Stop 8F5 (w/o encl.)

A46L f tck . Eli,-1100 N. Wood Dale Road Wood Dale Illinois 60191 USA Tel 1-630-227-2000

SolutientTechnologies',(LC

Remedial Work PlanRevision 0

20130419

REMEDIAL WORK PLANFOR REGULATORY REVIEW

AAR CORPORATIONWESTERN PARCEL

STRATEGIC WASTE EXCAVATIONSITE RESTORATION

SolutientTe~ilofrldes. hlC

SOLUTIENT TECHNOLOGIES, LLC6616 PROMWAY AVENUE, NWNORTH CANTON, OHIO 44720

PHONE: (330) 497-5905FAX; (330) 497-2045

REMEDIAL WORK PLAN NO. 20130419

AAR WESTERN PARCEL STRATEGIC WASTE EXCAVATIONAND SITE RESTORATION RWP FOR

12633 INKSTER ROAD, LIVONIA, MI SITE

Authored by:

Rand Feeeee, R) ManageerReviewed by

Doug Ifara,-A Corporation

• J"'4 o, 13Date

Date

0o3Date

Reviewed by:

Reviewed by

Reviewed by:

Approved by:

Barry Koh, Engineer

C9'ad Hollaway, yHealth hysicis

SDe Wilku, General Superintendent

Dell Reuss, Operations Manager

Date

Date

ý/- '-, 7c. " V ,, ý - &2/JDate

Date

, ,n -, .. #.. .-.. - 41 .. " t 4 l.4

Afu4lA rj e Pwwa, Frrr= ý4 W1 p

-- Hl AA5A I~tA~sij

R~kiF rr

'Vrý

D04

u n Remedial Work Plan 20130419Techooloctes, LLC Revision 0

AAR Western Parcel Strategic Waste Excavation and Site Restoration RWP

TABLE OF CONTENTS

Section Title Section

1.0 Background Statement ......................................................... 1

2.0 Primary and Secondary Project Objectives ............................... 22.1 Primary Objective2.2 Secondary Objectives

3.0 Regulatory Guidelines/Release Criteria .................................... 33.1 Revised Probabilistic Dose Analysis3.2 Basis for Unrestricted Release3.3 Excavation Depth3.4 Real-Time Confirmatory Sampling

4.0 W estern Parcel Site Features .................................................. 44.1 Accumulated Surface Debris4.2 Trees and Scrub Brush4.3 Surface Vegetation

5.0 Environmental Review ......................................................... 55.1 Endangered Species5.2 Contiguous Properties5.3 Off-site Migration of Liquids, Solids and Airborne Particulate5.3 Accumulation of Water in Excavations

6.0 ALARA Analysis ................................................................... 6

7.0 Organizational Structure ...................................................... 77.1 Site Field Services7.2 Site Security7.3 Management of Transportation and Disposal

8.0 Personnel Assignments and Areas of Responsibility/Accountability .... 88.1 Owner's Consultant8.2 Project Manager8.3 Health Physicist (Non-Certified)8.4 Site Supervisor

9.0 Site Preparation ................................................................. 99.1 Establishing Work Zones

9.2 Initial Survey9.3 Clearing and Grubbing9.4 Detailed Survey9.5 Haul Road Construction

10.0 Western Parcel Grid Excavations ........................................... 1010.1 Encountered Materials10.2 Anticipated Volumes10.3 Equipment Utilization10.4 On-site Staging of Excavated Materials

11.0 Documentation/Recordkeeping ........................................... 1111.1 Solutient Radioactive Materials License11.2 Site-Specific Health and Safety Plan11.3 Site-Specific Radiation Work Plan11.4 Instrument Calibration and Source Checks11.5 Incoming Equipment Radiological Reviews11.6 Incoming Transportation Vehicle Visual Inspection11.7 Outbound Vehicle Release Survey11.8 Loaded Soils/Homogenous Mixed Soils Analytical11.9 Waste Manifest Documents11.10 Imported Materials and Supplies Bills of Lading11.11 Truck Tickets11.12 Daily/Weekly Progress Reports11.13 Photo Journal11.14 Project Final Report

12.0 Quality Assurance/Quality Control ........................................ 1212.1 Radiological Instrument Calibration12.2 Instrumentation Background and Source Checks12.3 Responsibility & Accountability12.4 Instrument Utilization

13.0 References ........................................................................ 13

FIGURES

Figure 4.1 Western Parcel Site Feature PhotosFigure 8.1 Work Performance ScheduleFigure 10.1 Gross Soil Concentrations of Th-nat in the First Layer (0-1 depth)Figure 10.2 Western Parcel Grid Layout/Grid Excavations

TABLES

Table 3.1 Average Thorium Concentration After RemovalTable 3.4 1 - 2 Meter Layer

Remedial Work Plan 20130419Te$ologi sLC Revision 0

AAR Western Parcel Strategic Waste Excavation. Soils Management and Site Restoration RWP

1.0 BACKGROUND STATEMENT

The 12633 Inkster Road, Livonia, MI property, which is the subject of this Remedial Work Plan (RWP),was formerly owned by Brooks and Perkins, Inc., who conducted licensed activities involving radioactivethorium materials under Atomic Energy Commission (AEC) source materials license No. STB-0362.Brooks and Perkins terminated their license on 17 May 1981.AAR Corporation subsequently purchasedthe assets of the former Brooks and Perkins, including the property located at 12633 Inkster Road.

Oak Ridge National Laboratory (ORNL), under contract with the United States Nuclear RegulatoryCommission (USNRC), conducted a site investigation which discovered levels of thorium-contaminatedsurface and sub-surface soils that exceeded USNRC release criteria. Said discovery caused the property tobe added to the Site Decommissioning Management Plan list in August 1994.

Since 1996, AAR Corporation has maintained a proactive approach in negotiations with the NRCregarding remediation of the site. In November 2002, AAR submitted to the USNRC a plan calling for theunrestricted release and use of the eastern portion of the property and for restricted use of the westernportion to include a restrictive covenant. Subsequently, the property was legally divided into the EasternParcel and the Western Parcel, 12633 Inkster road, Livonia, Mi.

In 2006 AAR Corporation enlisted Partners Environmental consulting to prepare and submit to theUSNRC a Revised Dose Assessment and Work Plan. Said document was dated 7 August 2006. ARemedial Work Plan, authored by EnergySolutions, was submitted for review on 14 November 2006.

In a letter dated 27 October 2006 the NRC determined that the revised probabilistic dose analysis for thesite demonstrated that, contingent upon implementation of the Remedial Work Plan of August 2006, theEastern Parcel of the site would meet the dose criteria for unrestricted use, per the License TerminationRule (LTR) (10 CFR Part 20, Subpart E). The Western Parcel was deemed to meet the dose criteria forrestricted release.

Site remediation activities began in November 2006. A total of six (6) 100m 2 grids of soil in an open landarea were excavated to a depth of one (1) meter, loaded out, transported and disposed. Two (2) of theIOOm 2 grids were within the Eastern Parcel and four (4) of the IOOm 2 grids were within the areadesignated as the Western Parcel. Excavation cavities were backfilled with clean imported soils. Thisremedial action was successfully carried out, as evidenced in the Final Site Remediation Report authoredby Partners Environmental in April 2007.

In September 2010, the NRC and its consultant performed a radiological survey of the CSXT parcel thatruns parallel and contiguous to the southern boundary of the AAR Corporation property. In June 2011 theNRC released its Technical Evaluation Report regarding the radiological status of the contiguous CSXTright-of-way. NRC staff concluded that the CSXT property meets the criteria for unrestricted use and thatthis parcel requires no additional soil remediation or cleanup.

It is anticipated that use of the site will remain consistent with its current use and that of the neighboringproperties (commercial, light industrial, warehousing, trucking).

Telh'nlogoies, LLC


20130419

AAR Western Parcel Strateeic Waste Excavation and Site Restoration RWP

2.0 PRIMARY AND SECONDARY PROJECT OBJECTIVES

2.1 PRIMARY OBJECTIVE

The primary objective for the AAR Western Parcel Strategic Waste Excavation and Site Restorationproject is to obtain unrestricted release of the Western Parcel of the property located at 12633 InksterRoad, Livonia, MI.

2.2 SECONDARY OBJECTIVES

A. Strategic Waste Excavation

Excavation of soils will be limited to those lOOm 3 grids identified by the USNRC and Owner'sConsultant.

B. Soils Management

I. When practicable, site soils will be excavated and direct loaded into Michigan Gravel Traintractor-trailers for transportation to the designated off-site disposal facility.

2. When necessary, site soils within any one grid (or series of grids) will be intentionally mixed inorder to achieve the project-specific Waste Acceptance Criteria.

C. Site Restoration

Following excavation of any one 100m 3 grid or series of contiguous lOOm 3 grids, the excavation willbe backfilled using clean soil-like imported material. Excavations will be brought to existing surround-ing grade and machine-compacted. Clean soil-like materials will be obtained from suppliers who willdocument, through appropriate analysis, that the material is clean and that it is free, of hazardousmaterials or constituents.

Soluti nt Remedial Work Plan 20130419Teh'nolo gies, LLC Revision 0


3.0 REGULATORY GUIDELINES/RELEASE CRITERIA

3.1 REVISED PROBABALISTIC DOSE ANALYSIS

In accordance with the Probabilistic Dose Analysis, an unspecified volume of soil from thirty two (32)100m 3 grids referenced in Section 3.2 below will be excavated, and the excavated soils and debris will bedis-posed off site. Once the soil is removed and the excavations filled with clean soil, the site is deemedacceptable for unrestricted use in accordance with the Revised Probabilistic Dose Analysis.

3.2 BASIS FOR UNRESTRICTED RELEASE

The License Termination rule (LTR), 10 CFR 20, Subpart E, states that a site will be consideredacceptable for unrestricted release and use if the residual radioactivity that is distinguishable fromback-ground radiation results in a TEDE to an average member of the critical group that does notexceed twenty-five mrem (0.25mSv) per year, including that from groundwater sources of drinkingwater, and the residual radioactivity that has been reduced to levels that are As Low As ReasonablyAchievable (ALARA).

In a letter dated 27 October 2006, the NRC stated that the radiological analysis submitted by AARdemonstrates that it fulfilled the dose requirement of the LTR for unrestricted release of the easternparcel of the site, contingent upon the completion of remedial action. Remedial activities were com-pleted in January of 2007 and a final report submitted to the NRC in April of 2007.

The radiological analysis previously submitted and approved by the NRC was used to evaluate whatfurther soli removal from the western and eastern parcels would be required to reduce the radiation dose,consistent with the LTR for unrestricted use of the entire site. The probabilistic dose assessment yielded adose source ration (DSR) for the resident farmer scenario of 2.4mrem/yr per !Ci/g, assuming a 10,000m

2

surfacal zone of contamination to a depth of 2m below grade. A 10,000m zone of contamination wasused because it is the value recommended by the NRC for the AAR dose assessment. Based on thecalculated DSR, the average thorium concentration in the site soils must be < 10pCi/g to meet the limitestablished in LTR for unrestricted release.

Excavating the soil from the 32 grids identified herein and replacing it with certified clean material resultsin an average concentration, in the top one meter (1m) of soil within the western most 10,0000m 2 area ofthe site (155W to 60W) of 6 pCi/g. the specific grids recommended for soils removal are as follows (seeFigure 3a, Site characterization Report, Phase II of B. Koh 1999 for grid locations):

36 98 125 188 266 37037 99 126 189 283 37574 101 156 216 28475 122 157 217 31576 123 158 247 36894 124 187 265 369

Table 3.1, shows the grids to be removed and the resulting average thorium concentration after grid removal..

3.3 EXCAVATION DEPTH

No excavation is required to a depth exceeding one meter (1m) provided the average thoriumconcentration in the 1-2 meter layer does not cause the resulting dose to exceed the LTR limit forunrestricted release. At the time of maximum dose for the 0-1 meter strata, the Dose Source Ratios are asfollows: DSR (0-1 m) = 2.4 mrem/yr per pCi/g and DSR (1-2 m) = 0.13 mrem/yr per pCi/g. Therefore, atthis time, the average concentration in the 0-1 meter strata of 6 pCi/g would equate to a dose rate of 14.4mrem/yr, and the average concentration in the 1-2 meter strata could not exceed 82 pCi/g for the totaldose rate not to exceed the 25 mrem/yr criteria.

However, at the time of maximum dose for the 1-2 meter strata (which occurs several hundred years later)the DSR are as follows: DSR (0-1m) = 1.2 mrem/yr per pCi/g and DSR (1-2m) = 0.65 mrem/yr per pCi/g.therefore, at the time in question, the average concentration in the 0-1 meter strata of 6 pCi/g wouldequate to a dose rate of 7.2 mrem/yr and the average concentration in the 1-2 meter strata could notexceed 27 pCi/g for the total dose rate not to exceed the 25 mrem/yr criteria.

3.4 REAL-TIME CONFIRMATORY SAMPLING

After excavating soil to a depth of one meter, the average concentration in the 1-2 meter level will beverified by removing and analyzing soil samples. Four samples will be removed from each 100 squaremeter grid as described in Site Characterization Report, Phase II, Former Brooks and Perkins, Site, Inc.,Revision 0, August 1999, prepared by B.Koh and Associates. The concentration of the four grid sampleswill be added to the existing data for the 1-2 meter layer and a new layer average calculated. The existingdata for the 1-2 meter layer is presented in the attached spreadsheet, Table 3.4.

If the average thorium concentration of an exposed grid in the 1-2 meter layer causes the averageconcentration in the entire 1-2 meter layer to exceed 25 pCi/g, AAR will remove the exposed grid to anappropriate depth and replace it with clean soil.

Table 3.1Average Thorium Concentration in the Area of Contamination Zone

After RemovalData from Figure 3a of Site Characterization Report, Phase II, Former Brooks and Perkins, Site., Inc., Revision

0, August 1999, prepared by B.Koh and Associates and tabulated in Partners Environmental letter to Larry W.Camper, USNRC, dated August 7, 2006.

Parcel

E

E

w

w

E

E

E

E

Remove

Remove

W-Removed Previously

Remove

Remove

Remove

Remove

Remove

Remove

W-Removed Previously

Remove

Remove

Remove

Remove

Remove

Remove

Grid #

31-32

33-34

35-36

37-38

69

70

71

72 (ORISE 34 & 36)

73

74

75

76

94 (ORISE 17-20)

95

96

97

98

99

100

101

119

120

121

122

123

124

125

126

152

153

154

155

Average

AAR andORISE

Th232/228

Th230

pCi/g

2.1

0.3

0.0

0.0

10.5

11.6

0.0

13.6

0.0

0.0

0.0

0.0

0.0

22.6

15.3

32.9

0.0

0.0

0.0

0.0

36.0

9.9

29.5

0.0

0.0

0.0

0.0

0.0

6.9

10.0

1.9

27.1

Replace with Clean Soil


Replaced with Clean Soil







Replaced with Clean Soil








After RemovalW Remove 156 0.0 Replace with Clean Soil

W Remove 157 0.0 Replace with Clean Soil


W 159 6.5

E 183 9.5

E 184 24.0

E 185 21.9

E 186 33.3




W 190 0.3

E 213 0.4

E 214 65.2

E 215 11.6

E Remove 216 0.0 Replace with Clean Soil


W 218 15.1

W-Removed Previously 219 0.0 Replaced with Clean Soil

W 220 (ORISE 39-40 8.3

E 243 1.6

E 244 2.2

E 245 1.4

E 246 17.6


W 248 0.5

W-Removed Previously 249 0.0 Replaced with Clean Soil

E 260 6.5

E 261 1.0

E 262 0.4

E 263 15.6

W 264 2.5



E 278 0.8

E 279 0.3

E 280 0.0

E 281 1.6

W 282 0.0



E 310 0.3


After RemovalE

E

E

W

W

W

E

E

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

Remove

311

312

313

314

315

316

348-349

350-351

352-353

354-355

356

357

358

359 (ORISE 36-37)

360

361

362

363

364

365

366

367

368

369

370

371-372

374

375

0.3

0.4

25.9

16.5

0.0

26.9

3.6

2.8

0.5

0.0

3.6

2.7

16.7

14.5

0.6

0.6

1.3

0.5

0.5

0.0

15.3

0.0

0.0

0.0

0.0

0.9

3.2

0.0

6.0






AVERAGE

Remove

Remove

Remove

Remove

Table 3.41 -2 Meter Laver

Data are taken from Figure 3a of Site Charaterization Report, Phase II,Former Brooks and Perkins, Site., Inc., Revision 0, August 1999,

prepared by B.Koh and Associates i-- _

-Th232.Th228** Total Thorium

Th232/Th228* bkg sub (Th-230 added)

Grid # pCi/g i pCZ/g pCi/g _

35

35

36

36 __37

37

38

38159

159 _159

159190

190

190

190.218

218218218

220

220__

220

220

248

248

248

_ 248-___

264

264

264

264

282

282

282282

219

219

219

219249

1 - 1.471.1.47

i 4.56

4.5611.2

10.5

4.72

4.32 -

1.08:

I _ _ _ _ 1.08 -_1.081-.08'

0.880.88

0.880.88,

- 6.5

4.46.

2.52:8.3:

0.861

1.2-1.1 -41.17,

1.23;

6.821.4

1.31.31

-_ _ _1.3 1

1.3'1.-04:i- - -1.04:

1.04j

19.6,

0.171'

0.171

3.26,_,

3.261_9.9i_

9.2 . .

3 .4 2 F

-0.22

-0.221 ...

-0.22 -1-

-0.22 __

-0.42

-0.42:

-0.42

-0.42

5.23.163_16

1.22,

71-0.441

-0.160.13

-0.071-0.2315.52 I

0.110!

0ý0•

I

0.341

0.3416.52;iI~ _ _

6.521

19.81

18.4, _

6.84;

6.04; ___

01

010 __o_--0ool-

0

10.4

6.32

2.44

14

0

0

00-

11.04

0.2

0-010[

0,1 01 _ _ _ _ _-0.26; 01_ _ _

-0.26 01-0.26 0-0.26 ~ 018.3! 36.61

18.71 37.41

2.921 5.841

112.71 225.4

29.71 59.4

20'4.22,

114'31;

Table 3.4

249

249

249

314314

314314

315315315 7315

316

316

316

316

352

352

352

352

353

353

353354

354354354i

355

355

13.7250

3311.36

1.36

1.36

1.36'

0.93!0.9310.9310.93.

1.075

. .0.7-51.075:

1.075

3.78

3.78

3.78

3.78

1.21'1.21

1.21!

3.441-

3.44i

3.44'

3.44

1.08

1.08

1.08,

1.08:1.22,

1.22

1.22.

1.221

0.97'

0.971

0.971

0.971

3.52'

3.52'

3.52

12.4A248.7

31.7

0.06.

0.06

0.06!

- 0.3-0.37

-0.37_

-0.37-0.37

24.8,497.4i

63.41

0.12!

0.12'

0.12:

0.12I

01

00-

-0.225

-0.225

-0.2225-0.225'

2.48

2.48;

2.482.48_1-0.09,

-0.09

-0.092.14

2.142.141

2.141

-0.22,

-0.221

-0.22

-0.220

-o.o81-0.081

-0.08'

-0.331

-0.33

-0.33

2.22!

2.22 -

2.22'

2.221

-0.418-0.181

-0.181

Oi

4.961

0O4.281

4.281

4.281

4.281

01_01O

356

356

356

356

357

357

357

357

358

358

358

0[01oil0ý

4.44

4.444.441

4.441

1.12:

1.12i

Table 3.4

360

360

360

360

361

361__361

361

362

1.58,

1.58

1.58

1.58

1.58!

1.58,1.58-

1.58'

1.93

0.28;

0.281

0.28!

0.28

0.281

0.2810.28i

0.28,

0.63

0.561

0.561

0.561

0.56'1.26i

362 1.93

362 1.93;

362 1.93363 1.55363 1.55363 1.55i

363 1.55,364 1.55'

364 1.55

364 1.55

364 1.55

365 0.92

365 0.92i365 _ 0.92_365 ! 0.921

366 - 8.06366 _ 8.46_

366 I 11.1I366 8.08

367 0.48

367 0.48

367 I 0.48

367 ' 0.48'369_ . . 13.1'

369 16.4

369 10.8

369 15.8

371 2.22'

-- 371 2.221372 0.841

372 - 0.84!373 2.78373 , 2.781

374 3'374 3

375 I 31.6375 - 50.6'

31 0 .94-

0.631 1.261

0.25 _ 0.5

0.251 0.510.25! 0.5

0.25' 0.51

0.251 0.510 .25; 0.510.251 051

-0.38: 0-0.381 0-0.38 0--0.381 0 _ __

6.76ý 13.521 ___

7.16 14.32 _

9.81 19.616.781 13.561

-0.82 01'-0.821 0

-0.82 - 0

11.81- 23.615.11 30.21

9.51 _ 19

14.5; 291

0.92 1.84

-0.46 0........ o-0.461

- -- a1.48 2.961

1.48' 2.96

1.7: 3.4

1.7, 3.4A30.31 60.49.3' 98.6-

-0.36 01


31 0.94

32 , 0.88

32 0.88.. .33 . . .__ . ... .. 0.8 2

33 ' 0.82

34 0.862

34 ' _0.86

69 1.I169 1.1169 I.11,

69 1.11

70 1.16.70 i 1.16

70 1.16.70 __ 1.1671 0.66'

71 0.661

71 0.66I72 0.89,

-72 " 0.891

72 ... 0.891

72 0.8994 I 1.8:

94 1.8

94 1.8

94 1.8'

95 1.08

-0.361i 0O-0.421 0.. . . _- - . .-0.48 -_ 0

-0.48 .. .. 0-0.44j-__ __ 0 _ _

-0.44

-0.19 0-0.19 0o

-0.19 0i-0.19 0J,

-0.14 o_-0.14 OL

-0.614 0-0.64! 0

-0.641 01

-0.641 ~ ___-0.4-1' __ 0 ______-0.411 0-0.41--o.41,- 1 j . . . . .. .•

0.5' l0. .5, 1 _____0.5I

-0.22 0-0.22 0

-0.22 0

-0.22 0

-0.1 0

-0.1, 0

-0.1

-0.261 0i

-0.26i O0-0.261 _ 0-0.26L 00.361 0.72]0.36J_ 0.72 __

0.36ý 0.721

0.361 0.721

-0.171 0

-0.171 O,

-0.17i-0. 17 0ý

95

95

95

96

96

96

96

97

97

97

1.081

1.08i

1.08i1

1.21.2

1.2

1.2

1.04

1.0411.04;

97119

119-- 9--- -119. .. 1_19 - _ _

120

120

120120

1.041

1.66!

1.66!1.66,

1.66,

1.13;1.13:1.13!

1.13,


121 1.13

121 1.13

121 1.13,152 0.99,152 0..L99

152 0.991152 0.99i

153 - 0~.991

153 0.99115-3 .. . . . 9 0 6;-.

153 I 0.99!

154 1.05:

154. 1.05.154 1.05'

154 1.05'

1555 0.89155 0.89

155 " 0.89

155 0.89

183 0.8183 0.8

183 0.8i

183 0.8'184 1.17

184 1.17

184 1.17.

184 1.17

185 1.16

185 1.16

-0.17'

-0.17'

-0.171

-0.31,

-0.311

-0.31;-0.311

-0.311

-0.31

-0.311

-0.31-0.25,

-0.25.-0.25

-0.25.

-0.41

-0.41

-0.41

-0.41

-0.5

-0.5

-0.13-0.131

-0. 13'-0.131

-0.131-0.143-0.14ý

-0.14-0. 14i

01

0101.01

- 01____ 0

0ý010.0101

oi

0

0

010

0

0

0ol0'0!010'

0~

000

185

185

186

186

186

186

213

213

213

213

214

214214214215215

215

215

[I

-l -

1.16

1.421

1.42!

1.42]

1.42

0.76'0.76.

--- 0.76•0.76

7.96

5.54

0.861F--g2.1612.941I

5.4A

1.18.126

1.16,

0.121

0.121

0.12_

0.12'

-0.54'

-0.5416. 4I- --

-0.54,-

-0.54',6.66'

4.24i .-0.44

0.24

0.24

0.24

0.24

01ol021

-01

13.321

8.4810[

h~1

0.861

1.641

4.1

-0.12

124.7 i

1.72

3.28

8.21

249.41


216 4.08

216 1.02

216 30.6,216 2.18

243 0.83

243 0.83243 i 0.83,243 . 0.83

244 _ 1.07',... 244 1.07.

244 1.07.

244 i 1.07,245 0.8307245 I 0.831

245 0.83245 0.83

246 1 1.4246 I 1.4-

_ 246 . . . . . .1._4'_

246 1.4.

260 1 0.94260 0. 94260 _ 0,94

260 0.94'

261. 1.16!261 1.16261 1.16

261 1.16'

262 0.81262 0.81

262 0.81.

262 0.81

263 --0.99,263 0.99

263 .- ,... . 0.991263 0.99278 -0.89

278 . 0.89'278 0.89]278 0.89!279 1.07

279 1.07279 1.07

2.78 5.56_

-0.281 '[29.3 58.61

0.88 1.76

-0.471 -0

-0.471 0-0.47 0o-0.23 40

__ -0.23' 0

-0.23' 01-0.23 _ 01

-0.47 - 01

-0.47 06-0.47 : 0_-0.47 0'

0.1 .. . . 0.2 1 .0.l - o-0.210.1, 0.20. 1 : 0.2 1 . . . . .

-0.36 - 0-0.36i 0

_ 036:• - ____-0.361 01-0.140-0.14! 0

-0.14~ -- 01 __-0.49' 0-0.49 '. . 01-0.49 0

-0.49

-0.31-! 0' _-0.31 01-0.31 0o

-0.41 01-0.411 O1-0.41! 0 _

-0.23' -... 0.__-.. 9-0.23, 01-0.23 0

-0.23 ol

-0.i8, o

-0.18, o0

279

280

280

280

1.071

1.12!1.12!

1.12

Table 3.4

1.12, -0.18i-0.1611.14i

281 1.14

281 1.14-- - --. - - -- I --281 1 .14

310 0.9310 0.9,

310 0.9310 0.9311 0.92,

311 0.921

311 0 0.921311 0.92'312 - 0.85,

312 0.85.

312 0.85;2313 -- 1.471. .

313 _ 1.471313 - 1.47 -

313 1.47

348 1.17348 1.17

349 1.19

349 1.19!

350 __ 1.13'

350 1.13 "351 1.347351 1.34

35 1.47:ý35 1.47136 I 4.56

36 _ 4.56'

37 10.5:

37 11.2

. . . ..3 8 . . .... .. 4 .3 2 :38 4.72:

74.. .. .... .. 3. 88!

74 3.881

74 -3.88'74 3.881

75 I38

75 -10.2175 I3.3275 2.92

76 4.7476 4.74

S-0.16 0 _ __ _-0.16 0-0.164 0_

-0.4 01-0.4, 0!-0.4. 0

-0.38.:- 0-0.38 0o-0.38 01-0.381 01-0.45 •: 01-0.451 01-0.451 ol-0.45! 0.

0.171 0.3410.17 _ 0.341

0.17' 0.34,

-0.13: 0O3-0.13 O0-0.131 oi-0.111 o0-0.11 O _1-0. 17 01-0.17 700.04 _ .... 0.080.04 0.0810.171 0.341

0.17! 0.34

3.26! 6.52!

3.26, . 6.5219.2' 18.4 _

9.9-- -19.83.02, 6.041 _6.04

3.421 6.8412.581 5.16'!

2.581 5.161

2.58 5.16136.7 ..... 73.4

8.91 17.8 _ __2.02. 4.04

1.62' 3.24]

3.44' 6.8813.44. 6.88


76

76370

370

370

370

2.86

2.86-21.4

31.2:

22.81

21.41

98 1.52198 1 .52:98 1.52,98 1.52'99 1.52

99 0.96!

99 3.799 1.02-

101 8.361

101 1.09,

101 1.56,

101 1.56c

122 1.52,122 1.52'

122 1.521

122 1.52!

123 _ 1.52!

123 - 9.2m

123 1.8123 5.18-

124 1.57

124 1.57

124 - 1.57.

124 1.57'

125 __ 3.22!

125 3.22i

125 3.22125 3.22:

126 6.2

126 6.2

126 3.12

126 3.12•

368 - 37368 37

368 37

368 m 37

156 I 9.94:

156 I 1.18,

1.56' 3.12!

1.561 3.12",20.1, 40.21

29.9: 59.8j

21.51 4320.11 40.210.221 0.441

0.22 0.44[1_-

0.22! 0.44

0.221 0.44,-0.341 0 0--0.34ý o

2.41--0.281 0l7.061 14.-121 --- _ _

-0.211 0.0.26' 0.52

0.26' . . . 0.52, .0.221 0.4410.22, 0.441

0.22! 0.441

0.221 0.44•

7.9! 15.81

0.5:

3.8.8 i 7'76'- _0.27. 0.54!

0.27, 0.541

0.27' 0.54__

0.271 0.54

1.92! 3_ 184-[1.92! 3.841

1.92 3.841

4.92 9.84.9i 9.8i

1.82! 3.641

1.82' 3.641

35.71 71.4-35.7i___ .71.4!35.7' 71.4_

35.7 71.4!

8.641 17.281

-0.12 013.71 7.4:

-0.28! 0

0.14, 0.281

156

156

157

5.1.02,

1.44


157157

157

158

158

158

158

187

187

187

187

188

188

188

188

189

189

189

189

217

217

217

217

247

247

247

247

265

265

265

265

266

266

266

266283

283

283

283

284

284

284

284

369

369

369

369

L

1.44

1.44

1.44,

1.87

1.87

1.87

1.87

1.. .. 1.28I3.5:

0.921

4.38:

9.18

3.26

5.661

21ý

11.1

24.8

3.28

3.28'1.11,

. 6.62:22.6

9.26;

1.64-1-1.641 '

. .. . 41.64'

1.64

0.97

0.97!0.97'0.97

36.2

17.21

21.8

3.98'

---- 0.95[

0.951

0.951_ _ 0.95.

1.04'

1.04

1.04

1.04

-0.880.88.

0.88

0.88,

0.14'

0.14

0.145

0.57!

0.57.

0.57'

-0.021

-0.3813.081

. . 7.8811.96'

4.36'

19.7.

9.8,23.5

1.98

1.981

5.32

21.3i

7.961

0.34

0.340.34

0.34'

-0.33i

-0.33,

-0.33'1

-0.331

34.9

15.91

20.51

2.68!-0.35

-0.35-0.35

-0.35!

-0.26ý

-0.261

-0.26

-0.261

-0.42:

-0.42:

-0.42-0.42

1.141.14'

1.14,,

1.14. _01

6.161

15.761

3.9218.72.7

39.419.6-47,]--

3.96ý3.961

0o10.641

42.61

15.921

0.68

0.68

0.68

01

69.81

31.81

41_

5.361_

01001

0.28

0.280.28

.rL_

0o0o0OI0'01

Oto0


371

371

100

100100100

73

73

7373

218

218

218

218

248248

248

248

264

264 _

264264

282

282 T282

282

4.32

4.32:

32.8

10.2

51,15.8

1.02

1.02

1.02.

1.026.5.

4.46

8.3

2.52'1.57;

1.57,

1.57

1.57

2.56

2.56!2.56.

2.56'

1.01;

1.011.01,

1.011

I Thorium Concent ratio

3.02 6.04

3.021 6.04,

31.5 . . 638.. 9 17.8

49.7 99.4_'

14.5, 29ý-0.28 0-0.28 0

-0.28 01

-0.28 05.2 10.4

3.161 6.32

7 - 14K1.22 2.44_

0.27i 0.54 __

0.27 0.5410.271 0.54

0.27 0.541_

1.26 2.52

1.26' 2.52ý1 .2 6 ! _S 1. . . .1.26 2.521

-0.29 - 0----_-0.291 0__-0.291 0

)n 7.41Averagre Tota

Solutient Remedial Work Plan 20130419Technolologits, LLC Revision 0


4.0 WESTERN PARCEL SITE FEATURES

Prior to removal of overburden, the Western Parcel will be surveyed to establish the perimeter bounda-ries of the previously-designated plat of I n X IOim grids/quadrants that comprise the Western Parcelwork zone/zone of contamination.

4.1 ACCUMULATED SURFACE DEBRIS

The Western -Parcel is encumbered with randomly placed accumulations of debris, including scrap tires,piles of broken concrete, scrap metal, cinder block, wooden structural members, concrete structural mem-bers, concrete foundations, and broken asphalt.

Accumulated surface debris falls outside the scope of this project specific to the disposition of thorium-contaminated waste. As such, accumulated surface debris will be consolidated into a twenty-five (25)cubic yard roll-off box and transported to a Construction and Demolition Debris (C&DD) landfill in closeproximity to the lnkster Road property.

4.2 TREES AND SCRUB BRUSH

The Western Parcel is bordered by numerous immature deciduous trees and thickets of scrub brush, someof which are within the boundaries of the proposed soils excavation footprint. Equipment will be utilizedto remove the trees and scrub brush, leaving the lower 18" and root balls of said vegetation in place.

The tree limbs and scrub brush exceeding 18" above grade fall outside the scope of this project specific tothe disposition of thorium-contaminated waste. As such, they will remain piled on-site or will be size-reduced and sent to a yard waste recycler at a later date.

4.3 SURFACE VEGETATION

Heavy equipment will be utilized to surface grade the Western Parcel and to place vegetation outside andcontiguous to its northern boundary. As such, surface vegetation will remain piled on-site or will be sentto a yard waste recycler at a later date.

The resultant cleared open land area will be surveyed and pinned corresponding to the lOim X lOm grids/quadrants established on the Western Parcel plat.

Site Photos 001 Site Photos 002 Site Photos 003 Site Photos 004 Site Photos 005

Site Photos 006 site Photos 007 Site Photos 008 Site Photos 009 Site Photos 010

Site Photos 011 Site Photos 012 Site Photos 013 Site Photos 014 Site Photos 015

Site Photos 01h Site Photos 017 site Photos 018 Site Photos 019 Site Photos 020

Site Photos 021 bite Photos 022 Site Photos 024 Site Photos 025

'1v I- L -

Site Photos 026

-lýSA6~rlw

Site Photos 027 Site Photos 028 Site Photos 029 Site Photos 030

Site Photos 031 Site Photos 032

SolutientTechnologies, LLC

Remedial Work Plan 20130419

Revision 0

AAR Western Parcel Strate2ic Waste Excavation, Soils Management and Site Restoration RWP

5.0 Environmental Overview

5.1 Endangered Species

A survey of endangered and/or protected species of plants and animals in Wayne County, MI resulted inthe following:

SPECIES

Indiana Bat

STATUS HABITAT

Endangered Summer habitat includes small to medium river andstream corridors with well-developed riparian woods;woodlots within 1-3 miles of small to medium riversand streams; and upland forests. Caves and mines ashibernacula

Eastern Massasauga

Northern Riffleshell

Rayed Bean Mussel

Eastern Prarie Orchid

Candidate

Endangered

Endangered

Threatened

Shallow wetlands and adjacent uplands

Large streams and small rivers in firm sand or riffleareas; also occurs in Lake Erie

Smaller headwater creeks, but sometimes found inlarge rivers

Mesic to wet prairies and meadows

Solutient referenced Section 7 of the USFWS Region III Endangered Species Act, followed by conver-sations with representatives of the United States Fish and Wildlife Service (USFWS) who confirmed theabsence of endangered species of plants and animals on or in close proximity to the 12633 Inkster Roadproperty or in that geography defined by USFWS as an "action area".

Additionally, said conversations confirmed the absence of the habitat that could support those species ofendangered plants and animals indigenous to Wayne County, MI. Said inquiry took into account thefuture physical, chemical and biotic impacts to the environment of the actions to be undertaken by thisproject.

5.2 Contiguous Properties

To the North of the 12633 Inkster Road property are numerous light industrial and warehousing facilitieswhose normal working hours will correspond to the proposed work day for this project, and whoseemployees work indoors. Noise levels produced by operating equipment should have a negligible impacton these facilities and their employees. Should trucking operations create airborne particulate with thepotential to carry onto contiguous properties to the North, steps will be taken to dampen the truckingroute, thus eliminating airborne particulate. Airborne radiological particulate will be monitored

throughout the project's duration. A drainage ditch provides a natural barrier and a fenceline provides aconstructed barrier on the northern boundary of the "action area".

To the East of the 12633 Inkster Road property is Inkster Road and light industrial and warehousingfacilities whose normal working hours will correspond to the proposed work day for this project. Weanticipate the same impacts as are associated with the properties to the North, with the addition of thepossibility of material tracking from the haul truck tires onto the roadway. Care will be taken to monitorfor and remove this material as necessary. The additional vehicle traffic created by this project will have anegligible impact on noise or congestion on Inkster Road. The physical plant provides a constructedbarrier on the eastern boundary of the "action area".

To the South of the 12633 Inkster Road property is the CSX railway and a Wayne County RoadMaintenance yard. Heavy equipment is utilized by county workers at this location. Thus, the additionalnoise created by our equipment operation should have negligible impact on this facility and its workers.With prevailing winds from the southwest, we do not anticipate the airborne migration of particulate on tothese properties. A drainage ditch provides a natural barrier and the CSX railway provides a constructedbarrier on the southern boundary of the "action area".

To the West of the 12633 Inkster Road property is a transportation company trailer staging lot with verylittle activity. A stand of trees will remain between the project work zone and the contiguous property;thus, coupled with prevailing winds from the southwest, we anticipate negligible impact on this facilityand its employees. A change in elevation and tree line form a natural barrier and a fenceline provides aconstructed barrier on the western boundary of the "action area".

5.3 Offsite Migration of Liquids, Solids and Airborne Particulate

Following clearing and grubbing, silt fence will be installed along the perimeter of the Western Parcel andalong that portion of the Eastern Parcel used for stockpiling of imported fill materials and trucking routesassociated therewith. Once the excavation zone along the driveway and contiguous to the electricalsubstation is firmly established, silt fence will be installed along the perimeter of the planned excavation.

HI-Q RAS pumps will be installed to the north and east of the "action area" to monitor for airborneparticulate. Should excessive levels of airborne particulate be detected, Solutient will institute theappropriate engineering controls to reduce said levels.

5.4 Accumulation of Water in Excavations

Of major concern is the potential accumulation of entrained perched/groundwater and the possibility ofweather events that would cause accumulation of rain water in open excavations.'

Remedial Work Plan 20130419$ IU. i¶ nt Revision 0

Tedlnmoloaes, _LC

AAR Western Parcel Strategic Waste Excavation. Soils Management and Site Restoration RWP

6.0 ALARA ANALYSIS FORMER BROOKS & PERKINS SITE

6.1 WESTERN PARCEL

The probabilistic dose assessment demonstrated that after remediation the radiological conditionsof the Western and Eastern Parcels exceed the requirements for unrestricted release. Furtherdose reduction can only be achieved by removing additional contaminated soils and disposing ofthem at a licensed facility. Draft NUREG 1757, Volume 2, Consolidated NMSSDecommissioning Guidance, Section N. 1.5, indicates that when soil removal is required, it isunlikely to be cost effective for unrestricted release and mathematical analyses are not necessary.Nevertheless, AAR undertook such an analysis and confirmed that proposed soil removal isalready ALARA; demonstrating that no further remediation is necessary.

The remedial area (Grid 155W to Grid 60W) was chosen for the ALARA analysis. The averageconcentration of total thorium, after remediation is 6 pCi/g. The dose/source ratio at the peakmean dose is 2.4. This dose source ratio was used to calculate the thorium concentration(DCGLw) that would equate to a dose of 25 mrem/year for unrestricted release. The resultingDCGLw is 10 pCi/g total thorium.

The following formula (N-8) from Appendix N, of Draft NUREG 1757, Volume 2, was used forthe ALARA analysis:

Conc. CostT r+ A

DCGL $2000xPD xO .025xFxA 1-e-""N

Conc. = concentration at which the benefit from removal equals the cost of removalDCGLw = derived concentration guideline equivalent to the average concentration of residual

radioactivity that would give a dose of 25 mrem/yearCOStT = total cost of removal (includes removal, transport, and burial only for this analysis)*$2000 = acceptable value for collective dose per NUREG/BR-0058, revision 2, November 1995.PD = population density, 0.0004/M2 for land (generic value from Table N-2 of Appendix N)0.025 = annual dose to an average member of the critical group at the DCGLw in reins/yearF = fraction of residual radioactivity removed by the actionA = area being evaluated in m2

X = the radioactive decay constant for thoriumr = monetary discount rate, 0.03 for soil from Table N-2 of Appendix N

A COStT of $140,000 was used in the calculation. It represents the cost for the removal ($35,000),transport and disposal ($105,000) of 500 m 3 of soil (i.e., remediation of the five 100 m 2 grids, toa depth of one meter, that AAR will remove in excess of the 27 grids required to achieve theDCGLw). This soil removal results in an average thorium concentration of 6 pCi/g for remedi-ation area which is a decrease of 4 pCi/g giving a value of F of 0.4. The area being evaluated, A,is 10,000 in 2 . Because thorium has a very long half-life radioactive decay was ignored over the1000 year assessment period (Lambda = 0 and N= 1000).

Using these values in the above equation, the concentration at which the benefit of further soilremoval is equal to the cost is more than 50 times higher than the DCGLw, i.e., the ALARAanalysis demonstrates that the costs of soil removal, already proposed by AAR far outweigh thebenefits. Therefore, the residual levels are ALARA.

NRC guidance on ALARA, in NUREG-1757, Vol 2, Section 6, and Appendix N, indicates thatALARA for decommissioning should include typical good practice efforts, such as removal ofreadily removable radioactivity in soils. Numerous reports by AAR characterized thecontamination as slag and incinerator ash mixed within a soil matrix. The slag, which is similarto crushed stone, and the ash are not readily removable from the soil. No large chunks of slagwere identified in the site characterization nor encountered during the previous soils removal atthe site. The characterization of the contaminant was confirmed by the NRC during various sitevisits and by the NRC's contractor, Oak Ridge Institute for Science and Education (ORISE).

Solutient Remedial Work Plan 20130419Technologies, LLC Revision 0


7.0 ORGANIZATIONAL STRUCTURE

Site field services, site security and management of transportation and disposal services is theresponsibility of Solutient Technologies, LLC, 6616 Promway Avenue, North Canton, OH 44720.

7.1 SITE FIELD SERVICES CONSIST OF THE FOLLOWING JOB TASKS:1. Mobilization and Staging of Equipment, Materials and Supplies2. Initial Survey to Establish Working Perimeter3. Removal, Containerization Transportation and Disposal of Non-impacted Debris4. Clearing and Grubbing5. Installation of Erosion Control Materials as Deemed Necessary6. Survey to Establish Incremental Grids/Quadrants7. Construction of Haul Roads8. On-site Stockpiling of Backfill Materials9. Selective Excavation of Soils

10. Stockpiling of Soils Subject to Soils Mixing11. Load-out of Soils12. Real Time Analysis of Soil Samples13. Radiological Survey of Outbound Haul Trucks and Equipment14. Backfill, Rough Grade and Compaction of Backfill Material15. Site Restoration as Deemed Necessary16. Equipment Decontamination as Deemed Necessary17. Release Survey of Equipment18. Demobilization

7.2 SITE SECURITY SERVICES CONSISTS OF THE FOLLOWING JOB TASKS:1. Controlled Access to 12633 Inkster Road Property2. Use of Barrier Fence, Caution Tape and Cones to Establish Exclusion Zone, Transition Zone,

Limits of Work Zone3. Maintain Visitor Log

7.3 MANAGEMENT OF T&D SERVICES CONSISTS OF THE FOLLOWING JOB TASKS:1. Ordering and Scheduling Roll-off Box(es) for Load-out, T&D of Site Debris2. Ordering and Scheduling Backfill Material and Trucking of Same3. Maintaining Backfill Materials Consumption and Trucking Documents and Records4. Ordering and Scheduling LLRW Soil Trucking5. Soils Sampling to Ensure Attainment of WAC6. Scheduling Inbound Loads of LLRW Soil with Disposal Facility7. Maintaining Transportation and Disposal Documents and Records8. Surveying Outbound Vehicles and Equipment and Maintaining Survey Documents

Solutient Remedial Work Plan 20130419Technologies, .LLC Revision 0


8.0 PERSONNEL ASSIGNMENTS AND AREAS OF RESPONSIBILITY/ACCOUNTABILITY

8.1 OWNER'S ENGINEER1. Interface with regulatory authorities2. Negotiate with NRC and EQ regarding Waste Acceptance Criteria (WAC)

8.2 RADIATION SAFETY OFFICER1. Author site-specific radiation safety plan and health and safety plan, utilizing Solutient's Corporate

Radiation Protection Written Procedures and Health and Safety Plan as the basis for same2. Review and approve remedial work plan3. Ensure that Solutient and subcontractor personnel have the training, qualifications and requisite

licensing that corresponds to the anticipated Scope of Work and job tasks associated therewith3. Respond to stop-work event and determine appropriate controls4. Oversee implementation of appropriate controls and monitor effectiveness

8.3 PROJECT MANAGER1. Design site logistics plan that ensures site security and maximizes the value of available resources2. Schedule personnel, equipment, and receipt of materials and supplies3. Coordinate field activities4. Schedule sub-contracted waste transport vehicles5. Schedule purchase and trucking of imported backfill materials6. Schedule waste loads into disposal facility7. Ensure attainment of project schedule and project goals8. Maintain project logs, documents and records9. Ensure amicable resolution to changes in the scope of work, if any

8.4 HEALTH PHYSICIST (NON-CERTIFIED)1. Conduct site-specific safety and radiation awareness training2. Determine appropriate levels of Personal Protective Equipment (PPE)3. Perform daily instrument background and source checks4. Monitor release of airborne contaminants5. Establish and monitor waste handling, sampling, analytical and equipment release procedures6. Perform the duties of site safety officer

8.5 SITE SUPERVISOR1. Supervise equipment operators2. Supervise environmental technicians3. Ensure proper utilization and maintenance of heavy equipment4. Monitor on-site and off-site health and welfare of operators and technicians

SolutidntTechnololis, [IC


20130419


FIGURE 8-1JOB TASKS AND

WORK PERFORMANCE SCHEDULE

ID

2

3

4

5

6

8

9

10

11

12

13

14

15

16

17

18

0 Task NameCONTRACT AWARD

Pro Motdizathon

Mobilization

Site PregpaAlon

riutal Survey

Removal of noin-umpacted site debris

Clearringi Grubbing/ Eroson Control

Grid Survey

Haul Road Conslruction

Stockpile Clean fill

site Work

Exicavlokn & Direct Load

Exucavalion & StockpIifng

Soils menagemeln & Loaodoul

Backef & Compact-n

Site Restoration

Equipment Decoan Release Surveys

Denmofilluhonll

AARRadiation Work P

ScheduleFEg 6-1

Weesmk 1 Week 2SMTWT F S SMTWT F S

L1

ter

Week 3 - eed 90Wetf -- WeiSM T WT F S 6 M I WT F S SIsT W TF S SIsT WT F SSM

[-7][I]

[7][illvi[7]

2323

2323232323

LIII ffiIXYI]

Li

L]

Project protect Schedule

Date Thu &1125ti I

* Tas k

Spirt

progress

Mlslove Ext Ernal Tasks

Summary • External Miesuone *PRued Summary D Deadline

page I

Project schedule is based on ten-hour days during hours of daylight, Monday through Friday,excluding holidays. The schedule will remain flexible due to potential circumstances beyond thecontrol of Solutient, including such factors as inclement weather, landfill hours of operation,delays due to regulatory issues, as examples.

Snlutie nt Remedial Work Plan 20130419Tedinologies. .LLC Revision 0


9.0 SITE PREPARATION

The Western Parcel open land area at the 12633 Inkster Road property is encumbered by immature trees,scrub brush, surface vegetation and randomly-placed piles of cinder block, wood, asphalt, concrete, scrapmetal and scrap tires, as examples. Site soils characteristically retain high moisture, with the southwestquadrant of the Western Parcel especially susceptible. We anticipate encountering perched water in thissouthwest quadrant during soils excavation activities. Surface soils in the remainder of the open land areaare spongy and damp.

Site preparation activities, listed chronologically, will consist of the following:

9.1 Establishing work ZonesInstallation of barrier fence and establishment of exclusion zone, transition zone, equipment stagingarea, site soils and backfill material stockpile areas.

9.2 Initial SurveyAn initial survey will be performed from 100W to 155W and from 75S to 35N to establish the outerlimits of the Western Parcel excavation zone. Perimeter limits will be surveyed, staked and labeled bya licensed land surveyor, Milletics and Associates, Plymouth, MI, who performed these services prep-aratory to remedial activities conducted in November 2006.

9.3 Clearing and GrubbingAll items of non-impacted debris that are discovered during a walk-over of the Western Parcel will beremoved and consolidated into 25 cuyd roll-off boxes and subsequently disposed of as C&DD at alocal licensed landfill.

Immature trees, scrub brush and vegetative cover will be moved via bulldozer to the outer limits of theWestern Parcel to allow for a detailed survey of the resultant open land area.

9.4 Detailed SurveyMilletics and Associates will re-establish the 1 Om X 1 Om incremental grids corresponding to the gridlayout that has been used historically at the site during site characterization and delineation and duringpreviously-conducted remedial activities. Corners will be pinned and labeled.

Solutient and Owner's Representative will perform a walkover to ensure the accuracy of the surveyand the grid numbering when compared to existing site remediation documents

9.5 Haul Road ConstructionImported 1 &3 backfill material will be used to construct those access ways necessary to position haultrucks during direct load-out of excavated soil and to facilitate site truck tramming of excavated soilsto the site soils stockpile areas. Haul road construction will be limited to those surface areas that arenot subject to excavation and those surface areas that have been excavated and backfilled to grade fol-lowing excavation. Non-impacted road construction materials will eventually be used as backfillmaterial in subsequent excavations.

S_ ti n t Remedial Work Plan 201304191e1 lo-, LLC Revision 0


10.0 WESTERN PARCEL GRID EXCAVATIONS

10.1 ENCOUNTERED MATERIALS

Based on data supplied by Owner's Consultant, a minimum of thirty-two (32) grids will be excavated to adepth of one (1) meter below existing grade. Based on narratives regarding previous remedial activitiescontiguous to the Western Parcel and upon having obtained a limited number of hand auger samples inthe Western Parcel to a depth of 18", we anticipate encountering native soils, soils impacted with brickbats and residual concrete, incineration slag resembling crushed stone and granular incinerator ash thatwas deposited in this area by Brooks and Perkins historically.

Random piles of debris such as scrap tires, scrap metal, blocks of concrete, cinder block, crushed con-crete, wooden structures, are considered to be outside the scope of the RWP and will be surveyed, re-moved, loaded into roll-off boxes and transported off-site for disposal as Construction and DemolitionDebris (C&DD).

Trees, scrub brush, vegetative cover and root balls associated therewith are considered to be outside thescope of the RWP and will be consolidated on-site in an area(s) outside the perimeter of the open landarea that is subject to remedial activities.

10.2 ANTICIPATED VOLUMES

For purposes of this RWP, - 3 1OOm 3 of soils will be excavated within the Western Parcel. This equatesto 4,030yd3. We anticipate an average soils density of- 1.29T per yd 3. Thus, we anticipate a volume of

5,200T of material originating from the Western Parcel. The cost for disposal will be based on a "perton" rate, with weights and measures as determined at the intended disposal facility.

10.3 EQUIPMENT UTILIZATION

Solutient plans to utilize one (1) bulldozer with operator to perform clearing of immature trees and scrubbrush and to clear the excavation zone of surface humus. In doing so, the excavation zone is more easilyand accurately surveyed in order to re-establish the lOOm- grids upon which the excavation plan is based.

One trackhoe excavator with operator will work at the direction of the Solutient Project Manager to, whenpracticable, either (a) excavate and direct-load those soils that, in place, meet the disposal facility WACor (b) concurrently excavate and mix "low level with high level soils" that, when sampled, representhomogenous material meeting the disposal facility WAC. This material will be direct-loaded intoMichigan Gravel Trucks, each having a capacity of thirty-seven (37) cubic yards of material, andtransported to EQ's Belleville, MI facility for landfill disposal.

One trackhoe with operator and one off-road haul truck will work at the direction of the Solutient ProjectManager to, when practicable, excavate and tram soils of low total Thorium concentration and those soilsexceeding

the WAC for on-site segregation and stockpiling. This procedure will result in soil stockpiles that,through soils mixing and real time sampling/ analysis, will cause the material to meet the landfill WAC.Mixed soils meeting the WAC will be loaded into Michigan Gravel Trucks for transportation to EQ'sBelleville, MI facility for landfill disposal.

10.4 ON-SITE STAGING OF SEGREGATED MATERIALS

Soils from each of the stockpiles will be formulated and loaded into the Michigan Gravel Trucks. Theloaded material will be sampled/analyzed on-site to ensure that the formulated load meets the disposalfacility WAC.

Radiation technicians trained and competent in the use of Gamma Spectroscopy, in the use of scaler/ ratemeters with sodium iodide counters, and in the use of 44-9 GM Detectors will support the process of soilsexcavation, soils segregation, surveying of trucks and equipment, and off-site transportation for disposal.

Appropriate site security, material handling and erosion control measures will be implemented to preventunauthorized access to the site and to prevent the intentional or inadvertent spread or release of contami-nation outside the control area(s).

Traditional values as published in NRC Regulatory guide 1.86 will dictate the release limits for personneland equipment.

TABLE 8-1GRIDS IDENTIFIED FOR EXCAVATION

(Tentative)36 98 125 188 266 37037 99 126 189 283 37574 101 156 216 28475 122 157 217 31576 123 158 247 36894 124 187 265 369

Upon verified completion of excavation of any one grid or contiguous grids, backfilling of the excavationcavity will occur within a reasonable time frame so as to avoid the potential entrainment of snow/ waterand the adverse impact such weather events might have on site activities.

I

IIiIIi

IIIIiIiI

Figure 3m AAR PROJECT SITE0-1 METER INCREMENT SOIL SAMPLE RESULTS

, I TOTAL THORIUM (pClg)

35"

ION

WSN

ION

S5

30-S

405

455

"-|

F-igure 3a

,p' jj~~ ~APc~i ME~E~ Ir'4C~EN-tý V:,ý ý, a. Zýt, I!

qI

I

~Z'N

!I

0

'. 11,

-ý7S --- -3ST

.5l 35 24

/ --- A-z

.2')

78 77 1 j

-2 1I '~A- o:2Ž1n

~T3 -- ~ 5~-' -,

ti

3S5

4ss

I

I

I

ýss

- 77

"d4

t5'4;fTV 11' 'v 1S '3V, ` "

Approximate Concentration of Excavated Soil

DataSource Grid

AAR 36

AAR 36

AAR 37

AAR 37

AAR 74

AAR 74

AAR 74

AAR 74ORISE 74

ORISE 74

ORISE 74

ORISE 74AAR 75

AAR 75

AAR 75

AAR 75

AAR 76AAR 76

AAR 76AAR 76

AAR 94

AAR 94

AAR 94

AAR 94ORISE 94

ORISE 94

ORISE 94

ORISE 94

AAR 98

AAR 98AAR 98

AAR 98

AAR 99AAR 99

AAR 99

AAR 99

ORISE 99

ORISE 99

ORISE 99

ORISE 99

AAR 101

AAR 101

AAR 101

Average

Th232/Th228** Total Thorium AAR ORISE AAR and

bkg sub (Th-230 added) Grid Avg. Grid Avg. ORISE

pCQ/g pCiug pCi/g pCi/g pCi/g

Th232/Th228*

pCi/g

1

2

3

4

25.2

82.2

163

63.4

15223.814.3

39.430.86

23.05

8.31

61.4160

20.2

194

39.68.56

4.68

6.841.16

1.012

2.12

3.84

17.1

20.2

19.1

39.8

17.1

18.7

26.4

204

101

95.4

95.7

9.82

263.4

195

18.8

7.44

23.9

80.9

161.7

62.1

150.7

22.5

13

38.130.26

22.45

7.71

60.8

158.7

18.9

192.7

38.37.26

3.38

5.54-0.14

-0.288

0.82

2.54

15.8

18.9

17.8

38.5

15.8

17.4

25.1

202.7

99.794.8

95.1

9.22

262.8

193.7

17.5

6.14

47.8

161.8

323.4

124.2

301.4

4526

76.274.7

58.89

21.85

127.24

317.4

37.8

385.4

76.6

14.52

6.76

11.08-0.28

-0.576

1.64

5.08

31.6

317.7

198.8

111t64

853

37.8

35.6

77

31.6

34.8

50.2

405.4

199.4202.24

302.54

23.06

563.24

387.4

35

12.28

164.3 164.3

112.15 112.15

70.67 91.41

204.3 204.3

8.02 8.02

93.898

45.5 45.5

172.455678 272.77 222.61


Data

Source

AAR

AARAAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AARAAR

AAR

AARAAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

AAR

Th232ITh228*

PCilg

Th232ITh228**

bkg sub

pCilgGrid #

101

122122

122

122

123

123

123

123

124

124

124124

125

125125

125

126

126

126

126

156

156

156

156

157

157

157

157

158

158

158

158

187

187

187

187

188

188

188

188

189

189

7.26

4030.8

27.88.68

46.4

27

46.2

171

28.6

14.3

44.8

43.6

45.8

3.56

141

42.872

49.6

6.189.66

15.6

50.2

18.9

18

42.4

52.2

36.4

52.4

31

32

69.8

23.4

19.5

34.8

10.9

13.2

13.1

13.8

11.1

7.56

28.4

7.04

5.96

38.729.5

26.5

7.38

45.1

25.7

44.9

169.7

27.3

13

43.5

42.3

44.5

2.26

139.7

41.5

70.7

48.3

4.88

8.36

14.3

48.9

17.6

16.7

41.1

50.9

35.1

51.1

29.7

30.7

68.5

22.1

18.2

33.5

9.6

11.9

11.8

12.5

9.8

6.26

27.1

5.74

AverageTotal Thorium AAR ORISE AAR and

(Th-230 added) Grid Avg. Grid Avg. ORISE

pCi/g pCi/g pCi/g pCi/g11.92 111.65 111.65

77.4

59

53

14.76 51.04 51.0490.2

51.4

89.8

339.4 142.7 142.7

54.6

26

8784.6 63.05 63.05

89

4.52279.4

83 113.98 113.98141.4

96.6

9.76

16.72 66.12 66.12

28.6

97.8

35.2

33.4 48.75 48.75

82.2

101.8

70.2

102.2 89.1 89.1

59.4

61.4

137

44.2 75.5 75.5

36.4

67

19.2

23.8 36.6 36.623.6

25

19.612.52 20.18 20.18

54.2

11.48


Data

Source Grid #AAR 189

AAR 189

AAR 216

AAR 216

AAR 216

AAR 216

AAR 217

AAR 217

AAR 217

AAR 217

AAR 247

AAR 247AAR 247

AAR 247

AAR 265

AAR 265

AAR 265

AAR 265

AAR 266

AAR 266

AAR 266

AAR 266

ORISE 266

ORISE 266

AAR 283

AAR 283

AAR 283

AAR 283

AAR 284AAR 284

AAR 284

AAR 284

AAR 315

AAR 315

AAR 315

AAR 315

AAR 368

AAR 368

AAR 368

AAR 368

AAR 369

AAR 369

AAR 369

Th232ITh228*Pcitg

Th232/Th228**

bkg sub

pCilg

Average

Total Thorium AAR ORISE AAR and

(Th-230 added) Grid Avg. Grid Avg. ORISE

pCi/g pCi/g pCi/g pCi/g

49

23.6

40

29.6

314

3.7447

15

10.4

17

24573.6

31.8

96

3.06

15

7.7

16.9

118

1.55

214

6.16

38.4

15.87

7.5

20.6

20.6

35.4

2.6

24.6

3.42

71.8

11

26.2

34.2

34.2

37

26.4

19.5

40.4

13.1

16.4

10.8

47.7

22.3

38.7

28.3

30.1

2.44

45.7

13.7

9.1

15.7

243.7

72.3

30.5

94.7

1.76

13.7

6.4

15.6

116.7

0.25

212.7

4.86

37.8

15.27

6.2

19.319.3

34.1

1.3

23.3

2.12

70.5

9.7

24.9

32.9

32.9

35.7

25.1

18.2

39.1

11.8

15.1

9.5

95.4

44.6

77.451.42 51.42

41

42

56.6

60.2

4.88 49.77

91.4

27.4

18.231.4 42.1

487.4

144.6

61

189.4 220.6

3.52

27.4

12.831.2 18.73

233.4

0.5

425.4

9.72 167.255

129.24

30.11

12.438.6

38.6

68.2 39.45

2.6

46.6

4.24

141 48.61

19.4

49.8

65.8

65.8 50.2

71.4

50.2

36.4

78.2 59.05

23.6

30.2

19

49.77

42.1

220.6

18.73

79.675 123.465

39.45

48.61

50.2

59.05


Average

AAR ORISE AAR andTh232/Th228** Total Thorium

Data Th232/Th228* bkg sub (Th-230 added) Grid Avg. Grid Avg. ORISESource Grid # pCilg pCilg pCi/g pCilg pCilg pCilg

AAR 369 15.8 14.5 29 25.45 25.45AAR 370 31.2 29.9 59.8

AAR 370 17.8 16.5 33

AAR 370 21.4 20.1 40.2AAR 370 22.8 21.5 43 44 44MAR 375 31.6 30.3 60.6MAR 375 50.6 49.3 98.6 79.60 79.60

81.6657

Solutient Remedial Work Plan 20130419Technologie's. LC Revision 0


11.0 DOCUMENTATION/RECORDKEEPING

11.1 SOLUTIENT RADIOACTIVE MATERIALS LICENSE

A copy of Solutient's Radioactive Materials License, License Procedures and generic Radiation WorkPlan will be retained on site for review by others.

11.2 SITE-SPECIFIC HEALTH AND SAFETY PLAN

The Health and Safety Plan for this Remedial Action is based on Solutient's Corporate Health and SafetyPlan Document and Solutient's Standard Operating Procedures Manual, incorporating site-specific issues,such as radiological and non-radiological hazards, working in close proximity to heavy equipment, appro-priate levels of personal protective equipment, applicable federal and state OSHA regulations and emer-gency contacts and procedures.

11.3 SITE-SPECIFIC RADIATION WORK PLAN

The Radiation Work Plan for this Remedial Action will address general area radiation levels, anticipatedradiological exposures, dosimetry requirements, personal protective equipment/respiratory protection,ALARA guidelines, air monitoring requirements and response to discovered anomalies.

11.4 INSTRUMENT CALIBRATION AND SOURCE CHECKS

Solutient will maintain a record of daily source checks and calibration and will record background checksprior to and following daily site activities.

11.5 INCOMING EQUIPMENT RADIOLOGICAL SURVEYS

All pieces of working equipment will be surveyed prior to entering the control zone and a record main-tained thereof.

11.6 INCOMING TRANSPORTATION VEHICLE VISUAL INSPECTION

All incoming trucks that will be transporting waste to EQ for disposal will be visually inspected prior tomoving them into position for load-out of soils. Trucks will be checked for internal and external clean-liness, tightness of tailgate, installation of liner(if required).

11.7 OUTBOUND VEHICLE RELEASE SURVEY

All vehicles that, during the course of on-site activities, entered the control area will be surveyed priorto exiting the transition zone outbound.

11.8 LOADED SOILS/HOMOGENOUS MIXED SOILS ANALYTICAL

Records will be maintained of the survey results of a homogeneous sample of each outbound load of soilbased on whether the material was direct-loaded or resulted from soils management techniques.

11.9 WASTE MANIFEST DOCUMENTS

Waste manifest documents will be pre-printed by the disposal facility and delivered to the ProjectManager prior to project inception. Each manifest will have a unique manifest/materials tracking number.Owner will provide Solutient's Project Manager written authorization to sign as Generator/Offeror.

11.10 IMPORTED MATERIALS AND SUPPLIES BILLS OF LADING

Solutient will retain copies of bills of lading/weigh tickets for all incoming materials and supplies as across check against supplier invoicing.

11.11 TRUCK TICKETS

Solutient will retain copies of truck utilization tickets as a cross check against transporter invoicing.

11.12 DAILY/WEEKLY PROGRESS REPORTS

Owner's Representative will be provided with daily job task performance/completion reports and willreceive weekly reports indicating to what extent project goals and time lines are being met.

11.13 PHOTO JOURNAL

Solutient will maintain a photo journal that will depict the site (1) prior to inception of site activities, (2)at completion of site preparation, (3) during excavation and load-out, (4) during soils managementactivities, (5) during the process of homogeneous soils sampling and analysis, (6) prior to and duringplacement of stockpiled backfill material and site soils, (7) during backfill, grading and compaction.

11.14 PROJECT FINAL REPORT

Solutient will provide AAR Corporation with a comprehensive narrative final report inclusive of a projectchronology and all of the documents/records identified herein.

SolutientTechnologies, LLC


20130419

AAR Western Parcel Strate2ic Waste Excavation and Site Restoration RWP

12. QUALITY ASSURANCE/QUALITY CONTROL

12.1 RADIOLOGICAL INSTRUMENT CALIBRATION

Instrumentation utilized during the 12633 Inkster Road, Livonia, MI site remediation and restorationproject will be maintained and calibrated to manufacturer's specifications to ensure the accuracy,precision and sensitivity dictated by the Remedial Work Plan (RWVP).

Calibration sheets, maintenance records and daily background/source check sheets will be retained on-sitefor review and inspection by those utilizing task-specific instrumentation and for administrative andregulatory personnel who wish to confirm that instrumentation calibration is current.

12.2 INSTRUMENTATION BACKGROUND AND SOURCE CHECKS

Daily logs will be maintained that identify instrument/probe:

- Manufacturer- Model- Serial Number- Calibration Due Date- Check Source- Background Readings- Source Check Readings

12.3 RESPONSIBILITY & ACCOUNTABILITY

The site Health Physicist is responsible for instrument security, calibration, maintenance and dailychecks, and for maintaining and retaining documentation associated therewith.

12.4 INSTRUMENT UTILIZATION

Solutient intends to employ the following instrumentation during site activities:

INSTRUMENT

Ludlum Model 2241-2Ludlum Model 2224Ludlum Model 2221Ludlum Model 19Cambera Gamma Spec

DETECTOR

Ludlum Model 44-9 (15cm2 )Ludlum Model 43-89 (100cm 2)Ludlum 44-10 (2 X 2)

Germanium

UTILIZATION

Frisk Personnel In/OutEquipment Release SurveyWalk-over Activity Level SurveyHaul Truck External Dose RatesIsotopes/Soil Mixing Activities

Solutient Remedial Work Plan 20130419Technologies, .LLC Revision 0


13.0 REFERENCES

Notification Letter to Mr. Howard A Pulsifer, AAR General Counsel, 19 August 1994, USNRC

Revised Probabilistic Dose Assessment, June 2005, Partners Environmental

NRC Approval Letter to Mr. Howard A Pulsifer, AAR General Counsel, 27 October 2006, USNRC

Radiological Risk Assessment for the AAR Site in Livonia, MI, December 2006, Rev. 1, USNRC

Final Site Remediation Report Former Brooks & Perkins Site, 11 April 2007, Energy Solutions

Final Site Remediation report Former Brooks & Perkins Site, 11 April 2007, Partners Environmental

Technical Evaluation Report Radiological Status: Acceptability of CSX Transportation Property forUnrestricted Use, Docket 040-00235, June 2011, USNRC

USNRC Guide NUREG-1757, Volume 1, Revision 2, Section 15.13

USNRC guide NUREG-1757, Volume 2, Appendix N, Section 1.5

USNRC 10 CFR 20.1402 Radiological Criteria for Unrestricted Use

USNRC 10 CFR 20.2002 Method for Obtaining Approval of Proposed disposal Procedures

USNRC 10 CFR 20.2008 Disposal of Certain Byproduct Material

USNRC: SECY-10-0043 Blending of Low-Level Radioactive Waste, 7 April 2010

USNRC: SECY-04-0035 Results of the License Termination Rule Analysis of the Use of IntentionalMixing of Contaminated soil

WM'07 Conference, February 25-March 1, 2007, Tucson, AZ, "Methodology & Execution of Blending"

Letter to Mr. Thomas E Magette, EnergySolutions, Blending of Low-Level Radioactive Waste,27August 2009, USNRC

Solutient Technologies, LLC Corporate Health and Safety Plan

Solutient Technologies, LLC Standard Operating Procedures Guidance Document