ML23040A350

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DHS Varick Street 5th Floor 7 of 7 - Attachment D (Part 2 of 2, Pdf Pages 120 to 216)
ML23040A350
Person / Time
Issue date: 05/02/2022
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NRC Region 1
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Download: ML23040A350 (1)
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APPENDIX C WASTE INVENTORY Piping from Dose Rate on Drum Drum ID #

Column # (µrem/hr)

Drum001 158 4 Drum002 154 5 Drum003 145 4 Drum004 168 5 Drum005 128 5 Drum006 76 8 Drum007 76 4 Drum008 76 8 Drum009 76 9 Drum010 76 8 Drum011 168 6 Drum012 76 7 Drum013 24 8 Drum014 64 7 Drum015 50 & 51 7 Drum016 168 5

Completion Report Removal of the 3rd, 4th and 5th Floor Drain Piping and Drains 201 Varick Street New York, New York May 2022 APPENDIX D Radiological Surveys TRIO General Contracting

Completion Report Removal of the 3rd, 4th and 5th Floor Drain Piping and Drains 201 Varick Street New York, New York May 2022 This Page Intentionally Left Blank TRIO General Contracting

Survey Form Location: 3rd, 4th & 5th Floor RWP# Survey # Survey Type:

Site: 201 Varick Street, New York, NY NA NA Baseline pg. 1 of Smear (CPM/100 cm2)

Direct Count (CPM/Direct Frisk)

No. No.

1 26 2 N 27 N 3 A 28 A Survey Notes:

4 29 Baseline survey performed on 3rd, 4th and 5th Floor adjacent to pipe removal areas.

5 30 Survey consisted of direct static measurements with 2360/ 43-93 and corresponding 6 31 smear measurements for removable radioactivity counted with an onsite 2929/43-10-1 7 32 smear counter. Direct static measurements were counted for 2-minutes and smear 8 33 samples were counted for 2-minutes. The 2360/43-93 instrument specific ambient background was calculated using the average of 10 initial background measurements 9 34 during instrument setup. 2929/43-10-1 background was counted for 10-minutes during 10 35 the daily QC check on the specific day the smear sample was counted.

11 36 12 37 See subsequent survey pages for direct static and smear measurement results.

13 38 See survey map on subsequent pages for pipe removal locations located on the 3rd, 14 39 4th and 5th Floor of 201 Varick St.

15 40 16 41 17 42 18 43 19 44 20 45 21 46 22 47 23 48 24 49 25 50 Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Date Key Stephan Owe 3/4/2022 2929 SN121870 12/3/2022 43-10-1 PR126405 2360 SN184965 1/27/2022 See Survey Notes 43-93 PR396867 Reviewed By: Date:

OP-001-02 CABRERA SERVICES, INC.

1 2 3 4 5 6 7 8 HOUSTON STREET 9 10 10A 11 12 13 14 15 16 17 18 19 Legend p

24 20 21 22 23 25 26 27 28 29A 29 30 31 32 33 34 35 36 37 38 Active Riser to be removed from 4th P  !

P floor and 3rd floor and replaced in-kind Active Riser to be removed from the 50 51  !

P 5th, 4th, and 3rd floors and replaced in-39 40 41 42 43 44 45 46 47 48 48A 49 52 53 54 55 56 57 kind P  !

P  ! Inactive Riser to be removed from 4th P floor and 3rd floor 64 67 68 58 59 60 61 62 63 P 65 66 67A 69 70 71 72 73 74 75 P 76 P Riser to Remain HUDSON STREET 45 ft of piping to be removed. Remove VARICK STREET and cap pipe from ceiling of 4th floor 77 78 79 80 81 82 83 84 85 8686A 87 88 89 90 91 92 93 94 95 45 ft of piping to be removed. Remove and seal 5th Floor floor drains 80 ft of active piping. Remove, replace 99 105 105A 106 107 108 111 100 101 102 103 109 110 112 113 114 and re-route to avoid electrical room &

96 97 98 104 Riser 76 (storm drain)

P 128 Note: Baseline survey measurements 125 131 115 116 117 118 119 120 121 122 123 124A 124 126 127 129 130 132 133 collected adjacent to pipe removal P  !

P column locations.

144 145 149 134 135 136 137 138 139 140 141 142 143 143A 146 147 148 150 151 152 P  !

P 154 153 155 156 157 158 159 160 161 162 162A 163 164 165 166 167 170 171 P 169 P  !

P 168 172 173 174 175 176 177 178 179 180 181A 181 182 183 184 185 186 187 188 189 190 BASELINE SURVEY AREAS 201 VARICK STREET NEW YORK, NEW YORK KING STREET 2/2022 GIS ANALYST: S. OWE FIGURE Notes:

1. Contractor to field verify all quantities.
2. Only piping and risers associated with the 0 40 80 acid distribution line from the 5th floor shown. Approx. Scale (feet)

VARICK STREET PIPE REMOVAL 3RD FLOOR BASELINE STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 3rd Baseline 24 Static M2 Concrete 1 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 204 120 100 0.142 0.118 2.5 491.3 1.2 29.8 100 5000 3rd Baseline 24 Static M2 Concrete 2 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 199 120 100 0.142 0.118 1.1 512.6 1.2 29.8 100 5000 3rd Baseline 24 Static M2 Concrete 3 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 187 120 100 0.142 0.118 2.5 563.6 1.2 29.8 100 5000 3rd Baseline 50 Static M2 Concrete 4 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 282 120 100 0.142 0.118 1.1 159.5 1.2 29.8 100 5000 3rd Baseline 50 Static M2 Concrete 5 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 274 120 100 0.142 0.118 2.5 193.5 1.2 29.8 100 5000 3rd Baseline 50 Static M2 Concrete 6 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 275 120 100 0.142 0.118 1.1 189.3 1.2 29.8 100 5000 3rd Baseline 51 Static M2 Concrete 7 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 311 120 100 0.142 0.118 2.5 36.2 1.2 29.8 100 5000 3rd Baseline 51 Static M2 Concrete 8 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 291 120 100 0.142 0.118 1.1 121.2 1.2 29.8 100 5000 3rd Baseline 51 Static M2 Concrete 9 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 275 120 100 0.142 0.118 2.5 189.3 1.2 29.8 100 5000 3rd Baseline 64 Static M2 Concrete 10 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 205 120 100 0.142 0.118 6.0 487.0 1.2 29.8 100 5000 3rd Baseline 64 Static M2 Concrete 11 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 198 120 100 0.142 0.118 2.5 516.8 1.2 29.8 100 5000 3rd Baseline 64 Static M2 Concrete 12 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 215 120 100 0.142 0.118 6.0 444.5 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 13 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 302 120 100 0.142 0.118 1.1 74.4 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 14 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 299 120 100 0.142 0.118 2.5 87.2 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 15 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 313 120 100 0.142 0.118 1.1 27.6 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 16 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 259 120 100 0.142 0.118 1.1 257.3 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 17 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 262 120 100 0.142 0.118 2.5 244.6 1.2 29.8 100 5000 3rd Baseline 76 Static M2 Concrete 18 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 259 120 100 0.142 0.118 1.1 257.3 1.2 29.8 100 5000 3rd Baseline 128 Static M2 Concrete 19 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 340 120 100 0.142 0.118 2.5 87.2 1.2 29.8 100 5000 3rd Baseline 128 Static M2 Concrete 20 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 311 120 100 0.142 0.118 1.1 36.2 1.2 29.8 100 5000 3rd Baseline 128 Static M2 Concrete 21 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 306 120 100 0.142 0.118 2.5 57.4 1.2 29.8 100 5000 3rd Baseline 144 Static M2 Concrete 22 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 362 120 100 0.142 0.118 2.5 180.8 1.2 29.8 100 5000 3rd Baseline 144 Static M2 Concrete 23 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 309 120 100 0.142 0.118 6.0 44.7 1.2 29.8 100 5000 3rd Baseline 144 Static M2 Concrete 24 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 322 120 100 0.142 0.118 2.5 10.6 1.2 29.8 100 5000 3rd Baseline 145 Static M2 Concrete 25 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 235 120 100 0.142 0.118 6.0 359.4 1.2 29.8 100 5000 3rd Baseline 145 Static M2 Concrete 26 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 330 120 100 0.142 0.118 6.0 44.7 1.2 29.8 100 5000 3rd Baseline 145 Static M2 Concrete 27 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 346 120 100 0.142 0.118 2.5 112.7 1.2 29.8 100 5000 3rd Baseline 154 Static M2 Concrete 28 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 260 120 100 0.142 0.118 1.1 253.1 1.2 29.8 100 5000 3rd Baseline 154 Static M2 Concrete 29 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 296 120 100 0.142 0.118 2.5 100.0 1.2 29.8 100 5000 3rd Baseline 154 Static M2 Concrete 30 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 236 120 100 0.142 0.118 2.5 355.2 1.2 29.8 100 5000 3rd Baseline 158 Static M2 Concrete 31 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 256 120 100 0.142 0.118 6.0 270.1 1.2 29.8 100 5000 3rd Baseline 158 Static M2 Concrete 32 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 250 120 100 0.142 0.118 1.1 295.6 1.2 29.8 100 5000 3rd Baseline 158 Static M2 Concrete 33 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 267 120 100 0.142 0.118 2.5 223.3 1.2 29.8 100 5000 3rd Baseline 168 Static M2 Concrete 34 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 275 120 100 0.142 0.118 1.1 189.3 1.2 29.8 100 5000 3rd Baseline 168 Static M2 Concrete 35 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 269 120 100 0.142 0.118 2.5 214.8 1.2 29.8 100 5000 3rd Baseline 168 Static M2 Concrete 36 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 242 120 100 0.142 0.118 1.1 329.7 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 3RD FLOOR BASELINE SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 3rd Baseline 24 Smear M1 Floor 1 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 109 120 100 0.294 0.198 1.0 11.1 1.7 18.9 20 1000 3rd Baseline 24 Smear M1 Floor 2 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 110 120 100 0.294 0.198 1.0 13.7 1.7 18.9 20 1000 3rd Baseline 24 Smear M1 Floor 3 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 2 106 120 100 0.294 0.198 2.7 3.5 1.7 18.9 20 1000 3rd Baseline 50 Smear M1 Floor 4 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 109 120 100 0.294 0.198 0.7 11.1 1.7 18.9 20 1000 3rd Baseline 50 Smear M1 Floor 5 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 114 120 100 0.294 0.198 1.0 23.8 1.7 18.9 20 1000 3rd Baseline 50 Smear M1 Floor 6 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 102 120 100 0.294 0.198 0.7 6.6 1.7 18.9 20 1000 3rd Baseline 64 Smear M1 Floor 7 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 83 120 100 0.294 0.198 1.0 54.7 1.7 18.9 20 1000 3rd Baseline 64 Smear M1 Floor 8 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 72 120 100 0.294 0.198 1.0 82.5 1.7 18.9 20 1000 3rd Baseline 64 Smear M1 Floor 9 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 80 120 100 0.294 0.198 1.0 62.3 1.7 18.9 20 1000 3rd Baseline 76 Smear M1 Floor 10 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 99 120 100 0.294 0.198 1.0 12.1 2.0 18.0 20 1000 3rd Baseline 76 Smear M1 Floor 11 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 2 84 120 100 0.294 0.198 2.4 25.8 2.0 18.0 20 1000 3rd Baseline 128 Smear M1 Floor 12 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 107 120 100 0.294 0.198 0.3 29.4 1.4 18.1 20 1000 3rd Baseline 128 Smear M1 Floor 13 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 77 120 100 0.294 0.198 0.3 46.6 1.4 18.1 20 1000 3rd Baseline 128 Smear M1 Floor 14 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 92 120 100 0.294 0.198 0.3 8.6 1.4 18.1 20 1000 3rd Baseline 144 Smear M1 Floor 15 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 99 120 100 0.294 0.198 1.4 9.1 1.4 18.1 20 1000 3rd Baseline 144 Smear M1 Floor 16 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 100 120 100 0.294 0.198 0.3 11.6 1.4 18.1 20 1000 3rd Baseline 144 Smear M1 Floor 17 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 92 120 100 0.294 0.198 0.3 8.6 1.4 18.1 20 1000 3rd Baseline 145 Smear M1 Floor 18 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 2 82 120 100 0.294 0.198 3.1 33.9 1.4 18.1 20 1000 3rd Baseline 145 Smear M1 Floor 19 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 90 120 100 0.294 0.198 1.4 13.7 1.4 18.1 20 1000 3rd Baseline 145 Smear M1 Floor 20 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 94 120 100 0.294 0.198 0.3 3.5 1.4 18.1 20 1000 3rd Baseline 154 Smear M1 Floor 21 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 79 120 100 0.294 0.198 0.3 41.5 1.4 18.1 20 1000 3rd Baseline 154 Smear M1 Floor 22 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 82 120 100 0.294 0.198 0.3 33.9 1.4 18.1 20 1000 3rd Baseline 154 Smear M1 Floor 23 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 91 120 100 0.294 0.198 1.4 11.1 1.4 18.1 20 1000 3rd Baseline 158 Smear M1 Floor 24 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 78 120 100 0.294 0.198 0.3 44.0 1.4 18.1 20 1000 3rd Baseline 158 Smear M1 Floor 25 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 82 120 100 0.294 0.198 0.3 33.9 1.4 18.1 20 1000 3rd Baseline 158 Smear M1 Floor 26 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 94 120 100 0.294 0.198 1.4 3.5 1.4 18.1 20 1000 3rd Baseline 168 Smear M1 Floor 27 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 1 71 120 100 0.294 0.198 0.7 58.7 2.0 18.0 20 1000 3rd Baseline 168 Smear M1 Floor 28 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 66 120 100 0.294 0.198 1.0 71.4 2.0 18.0 20 1000 3rd Baseline 168 Smear M1 Floor 29 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 59 120 100 0.294 0.198 1.0 89.1 2.0 18.0 20 1000 Page 1 of 1

VARICK STREET PIPE REMOVAL 4TH FLOOR BASELINE STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 4th Baseline 24 Static M2 Concrete 1 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 370 120 100 0.142 0.118 1.1 214.8 1.2 29.8 100 5000 4th Baseline 24 Static M2 Concrete 2 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 364 120 100 0.142 0.118 2.5 189.3 1.2 29.8 100 5000 4th Baseline 24 Static M2 Concrete 3 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 358 120 100 0.142 0.118 1.1 163.8 1.2 29.8 100 5000 4th Baseline 50 Static M2 Concrete 4 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 245 120 100 0.142 0.118 1.1 316.9 1.2 29.8 100 5000 4th Baseline 50 Static M2 Concrete 5 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 436 120 100 0.142 0.118 1.1 495.5 1.2 29.8 100 5000 4th Baseline 50 Static M2 Concrete 6 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 398 120 100 0.142 0.118 1.1 333.9 1.2 29.8 100 5000 4th Baseline 50 Static M2 Concrete 7 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 379 120 100 0.142 0.118 2.5 253.1 1.2 29.8 100 5000 4th Baseline 50 Static M2 Concrete 8 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 338 120 100 0.142 0.118 1.1 78.7 1.2 29.8 100 5000 4th Baseline 51 Static M2 Concrete 9 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 380 120 100 0.142 0.118 6.0 257.3 1.2 29.8 100 5000 4th Baseline 51 Static M2 Concrete 10 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 326 120 100 0.142 0.118 9.5 27.6 1.2 29.8 100 5000 4th Baseline 64 Static M2 Concrete 11 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 407 120 100 0.142 0.118 6.0 372.2 1.2 29.8 100 5000 4th Baseline 64 Static M2 Concrete 12 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 377 120 100 0.142 0.118 2.5 244.6 1.2 29.8 100 5000 4th Baseline 64 Static M2 Concrete 13 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 356 120 100 0.142 0.118 6.0 155.3 1.2 29.8 100 5000 4th Baseline 76 Static M2 Concrete 14 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 5 360 120 100 0.142 0.118 16.6 172.3 1.2 29.8 100 5000 4th Baseline 76 Static M2 Concrete 15 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 385 120 100 0.142 0.118 9.5 278.6 1.2 29.8 100 5000 4th Baseline 76 Static M2 Concrete 16 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 291 120 100 0.142 0.118 2.5 121.2 1.2 29.8 100 5000 4th Baseline 76 Static M2 Concrete 17 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 384 120 100 0.142 0.118 1.1 274.4 1.2 29.8 100 5000 4th Baseline 128 Static M2 Concrete 18 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 335 120 100 0.142 0.118 9.5 65.9 1.2 29.8 100 5000 4th Baseline 128 Static M2 Concrete 19 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 370 120 100 0.142 0.118 6.0 214.8 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 20 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 358 120 100 0.142 0.118 2.5 163.8 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 21 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 384 120 100 0.142 0.118 1.1 274.4 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 22 3/14/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 337 120 100 0.142 0.118 6.0 74.4 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 23 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 366 120 100 0.142 0.118 6.0 197.8 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 24 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 384 120 100 0.142 0.118 1.1 274.4 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 25 3/14/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 338 120 100 0.142 0.118 1.1 78.7 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 26 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 379 120 100 0.142 0.118 2.5 253.1 1.2 29.8 100 5000 4th Baseline 131 Static M2 Concrete 27 3/14/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 331 120 100 0.142 0.118 6.0 48.9 1.2 29.8 100 5000 4th Baseline 144 Static M2 Concrete 28 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 5 352 120 100 0.142 0.118 16.6 138.2 1.2 29.8 100 5000 4th Baseline 144 Static M2 Concrete 29 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 331 120 100 0.142 0.118 2.5 48.9 1.2 29.8 100 5000 4th Baseline 144 Static M2 Concrete 30 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 334 120 100 0.142 0.118 2.5 61.7 1.2 29.8 100 5000 4th Baseline 145 Static M2 Concrete 31 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 5 332 120 100 0.142 0.118 16.6 53.2 1.2 29.8 100 5000 4th Baseline 145 Static M2 Concrete 32 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 4 331 120 100 0.142 0.118 13.0 48.9 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 33 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 376 120 100 0.142 0.118 2.5 240.3 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 34 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 366 120 100 0.142 0.118 1.1 197.8 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 35 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 299 120 100 0.142 0.118 9.5 87.2 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 36 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 276 120 100 0.142 0.118 1.1 185.0 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 37 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 256 120 100 0.142 0.118 6.0 270.1 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 38 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 364 120 100 0.142 0.118 6.0 189.3 1.2 29.8 100 5000 4th Baseline 154 Static M2 Concrete 39 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 287 120 100 0.142 0.118 2.5 138.2 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 40 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 370 120 100 0.142 0.118 2.5 214.8 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 41 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 376 120 100 0.142 0.118 9.5 240.3 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 42 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 359 120 100 0.142 0.118 2.5 168.0 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 43 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 4 359 120 100 0.142 0.118 13.0 168.0 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 44 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 322 120 100 0.142 0.118 1.1 10.6 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 45 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 360 120 100 0.142 0.118 1.1 172.3 1.2 29.8 100 5000 4th Baseline 158 Static M2 Concrete 46 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 363 120 100 0.142 0.118 2.5 185.0 1.2 29.8 100 5000 4th Baseline 168 Static M2 Concrete 47 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 6 404 120 100 0.142 0.118 20.1 359.4 1.2 29.8 100 5000 4th Baseline 168 Static M2 Concrete 48 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 358 120 100 0.142 0.118 2.5 163.8 1.2 29.8 100 5000 4th Baseline 168 Static M2 Concrete 49 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 380 120 100 0.142 0.118 9.5 257.3 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 4TH FLOOR BASELINE SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm )

2 100 cm )

2 4th Baseline 24 Smear M1 Floor 1 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 93 120 100 0.294 0.198 0.3 6.1 1.4 18.1 20 1000 4th Baseline 24 Smear M1 Floor 2 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 108 120 100 0.294 0.198 0.3 31.9 1.4 18.1 20 1000 4th Baseline 24 Smear M1 Floor 3 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 87 120 100 0.294 0.198 0.3 21.3 1.4 18.1 20 1000 4th Baseline 50 Smear M1 Floor 4 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 91 120 100 0.294 0.198 1.0 7.6 2.0 18.0 20 1000 4th Baseline 50 Smear M1 Floor 5 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 101 120 100 0.294 0.198 1.0 17.7 2.0 18.0 20 1000 4th Baseline 50 Smear M1 Floor 6 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 2 114 120 100 0.294 0.198 2.4 50.6 2.0 18.0 20 1000 4th Baseline 51 Smear M1 Floor 7 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 107 120 100 0.294 0.198 1.0 32.9 2.0 18.0 20 1000 4th Baseline 51 Smear M1 Floor 8 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 86 120 100 0.294 0.198 1.0 20.2 2.0 18.0 20 1000 4th Baseline 51 Smear M1 Floor 9 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 1 92 120 100 0.294 0.198 0.7 5.1 2.0 18.0 20 1000 4th Baseline 64 Smear M1 Floor 10 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 104 120 100 0.294 0.198 0.3 21.8 1.4 18.1 20 1000 4th Baseline 64 Smear M1 Floor 11 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 106 120 100 0.294 0.198 1.4 26.8 1.4 18.1 20 1000 4th Baseline 64 Smear M1 Floor 12 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 106 120 100 0.294 0.198 1.4 26.8 1.4 18.1 20 1000 4th Baseline 76 Smear M1 Floor 13 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 87 120 100 0.294 0.198 1.0 18.2 2.0 18.0 20 1000 4th Baseline 76 Smear M1 Floor 14 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 1 91 120 100 0.294 0.198 0.7 8.1 2.0 18.0 20 1000 4th Baseline 128 Smear M1 Floor 15 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 95 120 100 0.294 0.198 1.7 1.5 1.0 18.0 20 1000 4th Baseline 128 Smear M1 Floor 16 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 94 120 100 0.294 0.198 0.0 1.0 1.0 18.0 20 1000 4th Baseline 128 Smear M1 Floor 17 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 83 120 100 0.294 0.198 0.0 28.9 1.0 18.0 20 1000 4th Baseline 131 Smear M1 Floor 18 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 100 120 100 0.294 0.198 1.0 14.7 2.0 18.0 20 1000 4th Baseline 131 Smear M1 Floor 19 3/14/2022 Concrete 2929 SN121870/ 43101 PR126405 3 462 600 1 94 120 100 0.294 0.198 0.7 4.0 2.0 17.8 20 1000 4th Baseline 131 Smear M1 Floor 20 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 90 120 100 0.294 0.198 1.0 10.6 2.0 18.0 20 1000 4th Baseline 131 Smear M1 Floor 21 3/14/2022 Concrete 2929 SN121870/ 43101 PR126405 3 462 600 1 88 120 100 0.294 0.198 0.7 11.1 2.0 17.8 20 1000 4th Baseline 131 Smear M1 Floor 22 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 96 120 100 0.294 0.198 1.0 4.6 2.0 18.0 20 1000 4th Baseline 131 Smear M1 Floor 23 3/14/2022 Concrete 2929 SN121870/ 43101 PR126405 3 462 600 1 97 120 100 0.294 0.198 0.7 11.6 2.0 17.8 20 1000 4th Baseline 144 Smear M1 Floor 24 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 96 120 100 0.294 0.198 1.7 4.0 1.0 18.0 20 1000 4th Baseline 144 Smear M1 Floor 25 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 2 79 120 100 0.294 0.198 3.4 39.0 1.0 18.0 20 1000 4th Baseline 144 Smear M1 Floor 26 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 74 120 100 0.294 0.198 0.0 51.6 1.0 18.0 20 1000 4th Baseline 145 Smear M1 Floor 27 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 95 120 100 0.294 0.198 1.7 1.5 1.0 18.0 20 1000 4th Baseline 145 Smear M1 Floor 28 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 91 120 100 0.294 0.198 0.0 8.6 1.0 18.0 20 1000 4th Baseline 145 Smear M1 Floor 29 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 98 120 100 0.294 0.198 1.7 9.1 1.0 18.0 20 1000 4th Baseline 154 Smear M1 Floor 30 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 85 120 100 0.294 0.198 0.0 23.8 1.0 18.0 20 1000 4th Baseline 154 Smear M1 Floor 31 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 85 120 100 0.294 0.198 1.7 23.8 1.0 18.0 20 1000 4th Baseline 154 Smear M1 Floor 32 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 92 120 100 0.294 0.198 0.0 6.1 1.0 18.0 20 1000 4th Baseline 158 Smear M1 Floor 33 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 108 120 100 0.294 0.198 1.7 34.4 1.0 18.0 20 1000 4th Baseline 158 Smear M1 Floor 34 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 82 120 100 0.294 0.198 0.0 31.4 1.0 18.0 20 1000 4th Baseline 158 Smear M1 Floor 35 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 99 120 100 0.294 0.198 0.0 11.6 1.0 18.0 20 1000 4th Baseline 168 Smear M1 Floor 36 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 92 120 100 0.294 0.198 1.4 8.6 1.4 18.1 20 1000 4th Baseline 168 Smear M1 Floor 37 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 99 120 100 0.294 0.198 0.3 9.1 1.4 18.1 20 1000 4th Baseline 168 Smear M1 Floor 38 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 83 120 100 0.294 0.198 0.3 31.4 1.4 18.1 20 1000 Page 1 of 1

VARICK STREET PIPE REMOVAL 5TH FLOOR BASELINE STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm )

2 100 cm )

2 5th Baseline 24 Static M2 Concrete 1 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 321 120 100 0.142 0.118 2.5 6.4 1.2 29.8 100 5000 5th Baseline 24 Static M2 Concrete 2 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 359 120 100 0.142 0.118 1.1 168.0 1.2 29.8 100 5000 5th Baseline 24 Static M2 Concrete 3 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 317 120 100 0.142 0.118 1.1 10.6 1.2 29.8 100 5000 5th Baseline 76 Static M2 Concrete 4 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 395 120 100 0.142 0.118 6.0 321.1 1.2 29.8 100 5000 5th Baseline 76 Static M2 Concrete 5 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 391 120 100 0.142 0.118 6.0 304.1 1.2 29.8 100 5000 5th Baseline 76 Static M2 Concrete 6 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 388 120 100 0.142 0.118 2.5 291.4 1.2 29.8 100 5000 5th Baseline 131 Static M2 Concrete 7 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 380 120 100 0.142 0.118 2.5 257.3 1.2 29.8 100 5000 5th Baseline 131 Static M2 Concrete 8 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 336 120 100 0.142 0.118 1.1 70.2 1.2 29.8 100 5000 5th Baseline 131 Static M2 Concrete 9 3/4/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 4 358 120 100 0.142 0.118 13.0 163.8 1.2 29.8 100 5000 5th Baseline 154 Static M2 Concrete 10 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 328 120 100 0.142 0.118 9.5 36.2 1.2 29.8 100 5000 5th Baseline 154 Static M2 Concrete 11 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 327 120 100 0.142 0.118 1.1 31.9 1.2 29.8 100 5000 5th Baseline 154 Static M2 Concrete 12 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 310 120 100 0.142 0.118 1.1 40.4 1.2 29.8 100 5000 5th Baseline 168 Static M2 Concrete 13 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 346 120 100 0.142 0.118 9.5 112.7 1.2 29.8 100 5000 5th Baseline 168 Static M2 Concrete 14 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 341 120 100 0.142 0.118 2.5 91.5 1.2 29.8 100 5000 5th Baseline 168 Static M2 Concrete 15 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 369 120 100 0.142 0.118 9.5 210.6 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 5th FLOOR BASELINE SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 5th Baseline 24 Smear M1 Floor 1 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 107 120 100 0.294 0.198 0.7 6.1 1.7 18.9 20 1000 5th Baseline 24 Smear M1 Floor 2 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 115 120 100 0.294 0.198 1.0 26.3 1.7 18.9 20 1000 5th Baseline 24 Smear M1 Floor 3 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 122 120 100 0.294 0.198 0.7 44.0 1.7 18.9 20 1000 5th Baseline 76 Smear M1 Floor 4 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 94 120 100 0.294 0.198 1.0 0.5 2.0 18.0 20 1000 5th Baseline 76 Smear M1 Floor 5 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 88 120 100 0.294 0.198 1.0 15.7 2.0 18.0 20 1000 5th Baseline 131 Smear M1 Floor 6 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 2 104 120 100 0.294 0.198 2.4 24.8 2.0 18.0 20 1000 5th Baseline 131 Smear M1 Floor 7 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 88 120 100 0.294 0.198 1.0 15.7 2.0 18.0 20 1000 5th Baseline 131 Smear M1 Floor 8 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 98 120 100 0.294 0.198 1.0 9.6 2.0 18.0 20 1000 5th Baseline 154 Smear M1 Floor 9 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 1 90 120 100 0.294 0.198 0.7 10.6 2.0 18.0 20 1000 5th Baseline 154 Smear M1 Floor 10 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 1 112 120 100 0.294 0.198 0.7 45.0 2.0 18.0 20 1000 5th Baseline 154 Smear M1 Floor 11 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 68 120 100 0.294 0.198 1.0 66.3 2.0 18.0 20 1000 5th Baseline 168 Smear M1 Floor 11 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 82 120 100 0.294 0.198 1.0 30.9 2.0 18.0 20 1000 5th Baseline 168 Smear M1 Floor 11 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 92 120 100 0.294 0.198 1.0 5.6 2.0 18.0 20 1000 5th Baseline 168 Smear M1 Floor 11 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 2 94 120 100 0.294 0.198 2.4 0.5 2.0 18.0 20 1000 Page 1 of 1

Survey Form Location: 3rd, 4th & 5th Floor RWP# Survey # Survey Type:

Site: 201 Varick Street, New York, NY NA NA Post-Pipe Removal Release pg. 1 of Smear (CPM/100 cm2)

Direct Count (CPM/Direct Frisk)

No. No.

1 26 2 N 27 N 3 A 28 A Survey Notes:

4 29 Post-Pipe removal release survey performed on 3rd, 4th and 5th Floor adjacent to pipe 5 30 removal areas. Survey consisted of direct static measurements with 2360/ 43-93 and 6 31 corresponding smear measurements for removable radioactivity counted with an 7 32 onsite 2929/43-10-1 smear counter. Direct static measurements were counted for 2-8 33 minutes and smear samples were counted for 2-minutes. The 2360/43-93 instrument specific ambient background was calculated using the average of 10 initial 9 34 background measurements during instrument setup. 2929/43-10-1 background was 10 35 counted for 10-minutes during the daily QC check on the specific day the smear 11 36 sample was counted.

12 37 See subsequent survey pages for direct static and smear measurement results.

13 38 14 39 See survey map on subsequent pages for pipe removal locations located on the 3rd, 15 40 4th and 5th Floor of 201 Varick St.

16 41 17 42 18 43 19 44 20 45 21 46 22 47 23 48 24 49 25 50 Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Date Key Stephan Owe 3/5/2022 2929 SN121870 12/3/2022 43-10-1 PR126405 2360 SN184965 1/27/2022 See Survey Notes 43-93 PR396867 Reviewed By: Date:

OP-001-02 CABRERA SERVICES, INC.

1 2 3 4 5 6 7 8 HOUSTON STREET 9 10 10A 11 12 13 14 15 16 17 18 19 Legend p

24 20 21 22 23 25 26 27 28 29A 29 30 31 32 33 34 35 36 37 38 Active Riser to be removed from 4th P  !

P floor and 3rd floor and replaced in-kind Active Riser to be removed from the 50 51  !

P 5th, 4th, and 3rd floors and replaced in-39 40 41 42 43 44 45 46 47 48 48A 49 52 53 54 55 56 57 kind P  !

P  ! Inactive Riser to be removed from 4th P floor and 3rd floor 64 67 68 58 59 60 61 62 63 P 65 66 67A 69 70 71 72 73 74 75 P 76 P Riser to Remain HUDSON STREET 45 ft of piping to be removed. Remove VARICK STREET and cap pipe from ceiling of 4th floor 77 78 79 80 81 82 83 84 85 8686A 87 88 89 90 91 92 93 94 95 45 ft of piping to be removed. Remove and seal 5th Floor floor drains 80 ft of active piping. Remove, replace 99 105 105A 106 107 108 111 100 101 102 103 109 110 112 113 114 and re-route to avoid electrical room &

96 97 98 104 Riser 76 (storm drain)

P 125 128 Note: Post-Piping removal release 115 116 117 118 119 120 121 122 123 124A 124 126 127 129 130 131 132 133 survey measurements collected P  !

P adjacent to pipe removal column locations.

144 145 149 134 135 136 137 138 139 140 141 142 143 143A 146 147 148 150 151 152 P  !

P 154 153 155 156 157 158 159 160 161 162 162A 163 164 165 166 167 170 171 P 169 P  !

P 168 172 173 174 175 176 177 178 179 180 181A 181 182 183 184 185 186 187 188 189 190 POST-PIPING REMOVAL RELEASE SURVEY AREAS 201 VARICK STREET NEW YORK, NEW YORK KING STREET 2/2022 GIS ANALYST: S. OWE FIGURE Notes:

1. Contractor to field verify all quantities.
2. Only piping and risers associated with the 0 40 80 acid distribution line from the 5th floor shown. Approx. Scale (feet)

VARICK STREET PIPE REMOVAL 3RD FLOOR POST SURVEY STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 3rd Post 24 Static M2 Concrete 1 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 212 120 100 0.142 0.118 1.1 457.3 1.2 29.8 100 5000 3rd Post 24 Static M2 Concrete 2 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 202 120 100 0.142 0.118 2.5 499.8 1.2 29.8 100 5000 3rd Post 24 Static M2 Concrete 3 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 194 120 100 0.142 0.118 2.5 533.8 1.2 29.8 100 5000 3rd Post 50 Static M2 Concrete 4 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 228 120 100 0.142 0.118 9.5 389.2 1.2 29.8 100 5000 3rd Post 50 Static M2 Concrete 5 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 214 120 100 0.142 0.118 6.0 448.8 1.2 29.8 100 5000 3rd Post 50 Static M2 Concrete 6 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 222 120 100 0.142 0.118 1.1 414.7 1.2 29.8 100 5000 3rd Post 51 Static M2 Concrete 7 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 235 120 100 0.142 0.118 6.0 359.4 1.2 29.8 100 5000 3rd Post 51 Static M2 Concrete 8 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 227 120 100 0.142 0.118 1.1 393.5 1.2 29.8 100 5000 3rd Post 51 Static M2 Concrete 9 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 215 120 100 0.142 0.118 2.5 444.5 1.2 29.8 100 5000 3rd Post 64 Static M2 Concrete 10 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 214 120 100 0.142 0.118 1.1 448.8 1.2 29.8 100 5000 3rd Post 64 Static M2 Drywall 11 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 207 120 100 0.142 0.118 2.5 478.5 1.2 29.8 100 5000 3rd Post 64 Static M2 Drywall 12 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 198 120 100 0.142 0.118 1.1 516.8 1.2 29.8 100 5000 3rd Post 76 Static M2 Drywall 13 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 333 120 100 0.142 0.118 9.5 57.4 1.2 29.8 100 5000 3rd Post 76 Static M2 Drywall 14 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 217 120 100 0.142 0.118 1.1 436.0 1.2 29.8 100 5000 3rd Post 76 Static M2 Drywall 15 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 318 120 100 0.142 0.118 1.1 6.4 1.2 29.8 100 5000 3rd Post 128 Static M2 Drywall 16 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 307 120 100 0.142 0.118 6.0 53.2 1.2 29.8 100 5000 3rd Post 128 Static M2 Concrete 17 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 254 120 100 0.142 0.118 2.5 278.6 1.2 29.8 100 5000 3rd Post 128 Static M2 Concrete 18 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 274 120 100 0.142 0.118 2.5 193.5 1.2 29.8 100 5000 3rd Post 144 Static M2 Concrete 19 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 361 120 100 0.142 0.118 9.5 176.5 1.2 29.8 100 5000 3rd Post 144 Static M2 Concrete 20 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 367 120 100 0.142 0.118 9.5 202.0 1.2 29.8 100 5000 3rd Post 144 Static M2 Concrete 21 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 344 120 100 0.142 0.118 2.5 104.2 1.2 29.8 100 5000 3rd Post 144 Static M2 Concrete 22 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 357 120 100 0.142 0.118 2.5 159.5 1.2 29.8 100 5000 3rd Post 144 Static M2 Concrete 23 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 399 120 100 0.142 0.118 1.1 338.2 1.2 29.8 100 5000 3rd Post 145 Static M2 Concrete 24 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 346 120 100 0.142 0.118 2.5 112.7 1.2 29.8 100 5000 3rd Post 145 Static M2 Concrete 25 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 350 120 100 0.142 0.118 9.5 129.7 1.2 29.8 100 5000 3rd Post 154 Static M2 Concrete 26 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 189 120 100 0.142 0.118 2.5 555.1 1.2 29.8 100 5000 3rd Post 154 Static M2 Concrete 27 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 208 120 100 0.142 0.118 2.5 474.3 1.2 29.8 100 5000 3rd Post 154 Static M2 Concrete 28 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 193 120 100 0.142 0.118 2.5 538.1 1.2 29.8 100 5000 3rd Post 158 Static M2 Concrete 29 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 256 120 100 0.142 0.118 1.1 270.1 1.2 29.8 100 5000 3rd Post 158 Static M2 Concrete 30 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 258 120 100 0.142 0.118 2.5 261.6 1.2 29.8 100 5000 3rd Post 158 Static M2 Concrete 31 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 247 120 100 0.142 0.118 2.5 308.4 1.2 29.8 100 5000 3rd Post 168 Static M2 Concrete 32 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 275 120 100 0.142 0.118 1.1 189.3 1.2 29.8 100 5000 3rd Post 168 Static M2 Concrete 33 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 269 120 100 0.142 0.118 2.5 214.8 1.2 29.8 100 5000 3rd Post 168 Static M2 Concrete 34 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 242 120 100 0.142 0.118 1.1 329.7 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 3RD FLOOR POST SURVEY SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 3rd Post 24 Smear M1 Floor 1 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 97 120 100 0.294 0.198 0.7 19.2 1.7 18.9 20 1000 3rd Post 24 Smear M1 Floor 2 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 110 120 100 0.294 0.198 0.7 13.7 1.7 18.9 20 1000 3rd Post 24 Smear M1 Floor 3 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 112 120 100 0.294 0.198 0.7 18.7 1.7 18.9 20 1000 3rd Post 50 Smear M1 Floor 4 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 119 120 100 0.294 0.198 0.7 36.4 1.7 18.9 20 1000 3rd Post 50 Smear M1 Floor 5 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 99 120 100 0.294 0.198 0.7 14.2 1.7 18.9 20 1000 3rd Post 50 Smear M1 Floor 6 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 2 105 120 100 0.294 0.198 2.7 1.0 1.7 18.9 20 1000 3rd Post 51 Smear M1 Floor 7 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 114 120 100 0.294 0.198 0.7 23.8 1.7 18.9 20 1000 3rd Post 51 Smear M1 Floor 8 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 2 107 120 100 0.294 0.198 2.7 6.1 1.7 18.9 20 1000 3rd Post 51 Smear M1 Floor 9 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 110 120 100 0.294 0.198 1.0 13.7 1.7 18.9 20 1000 3rd Post 64 Smear M1 Floor 10 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 87 120 100 0.294 0.198 0.7 44.5 1.7 18.9 20 1000 3rd Post 64 Smear M1 Floor 11 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 86 120 100 0.294 0.198 1.0 47.1 1.7 18.9 20 1000 3rd Post 64 Smear M1 Floor 12 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 104 120 100 0.294 0.198 0.7 1.5 1.7 18.9 20 1000 3rd Post 76 Smear M1 Floor 13 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 124 120 100 0.294 0.198 1.0 49.1 1.7 18.9 20 1000 3rd Post 76 Smear M1 Floor 14 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 105 120 100 0.294 0.198 1.0 1.0 1.7 18.9 20 1000 3rd Post 76 Smear M1 Floor 15 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 125 120 100 0.294 0.198 1.0 51.6 1.7 18.9 20 1000 3rd Post 128 Smear M1 Floor 16 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 97 120 100 0.294 0.198 1.4 4.0 1.4 18.1 20 1000 3rd Post 128 Smear M1 Floor 17 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 86 120 100 0.294 0.198 1.4 23.8 1.4 18.1 20 1000 3rd Post 128 Smear M1 Floor 18 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 81 120 100 0.294 0.198 1.4 36.4 1.4 18.1 20 1000 3rd Post 144 Smear M1 Floor 19 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 94 120 100 0.294 0.198 1.4 3.5 1.4 18.1 20 1000 3rd Post 144 Smear M1 Floor 20 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 96 120 100 0.294 0.198 0.3 1.5 1.4 18.1 20 1000 3rd Post 144 Smear M1 Floor 21 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 92 120 100 0.294 0.198 0.3 8.6 1.4 18.1 20 1000 3rd Post 145 Smear M1 Floor 22 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 101 120 100 0.294 0.198 1.4 14.2 1.4 18.1 20 1000 3rd Post 145 Smear M1 Floor 23 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 94 120 100 0.294 0.198 0.3 3.5 1.4 18.1 20 1000 3rd Post 145 Smear M1 Floor 24 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 96 120 100 0.294 0.198 1.4 1.5 1.4 18.1 20 1000 3rd Post 154 Smear M1 Floor 25 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 101 120 100 0.294 0.198 1.4 14.2 1.4 18.1 20 1000 3rd Post 154 Smear M1 Floor 26 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 102 120 100 0.294 0.198 0.3 16.7 1.4 18.1 20 1000 3rd Post 154 Smear M1 Floor 27 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 99 120 100 0.294 0.198 1.4 9.1 1.4 18.1 20 1000 3rd Post 158 Smear M1 Floor 28 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 1 102 120 100 0.294 0.198 1.4 16.7 1.4 18.1 20 1000 3rd Post 158 Smear M1 Floor 29 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 110 120 100 0.294 0.198 0.3 36.9 1.4 18.1 20 1000 3rd Post 158 Smear M1 Floor 30 3/5/2022 Concrete 2929 SN121870/ 43101 PR126405 1 477 600 0 103 120 100 0.294 0.198 0.3 19.2 1.4 18.1 20 1000 3rd Post 168 Smear M1 Floor 31 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 4 110 120 100 0.294 0.198 6.1 13.7 1.7 18.9 20 1000 3rd Post 168 Smear M1 Floor 32 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 147 120 100 0.294 0.198 0.7 107.3 1.7 18.9 20 1000 3rd Post 168 Smear M1 Floor 33 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 105 120 100 0.294 0.198 1.0 1.0 1.7 18.9 20 1000 Page 1 of 1

VARICK STREET PIPE REMOVAL 4TH FLOOR POST SURVEY STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 4th Post 24 Static M2 Concrete 1 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 287 120 100 0.142 0.118 2.5 138.2 1.2 29.8 100 5000 4th Post 24 Static M2 Concrete 2 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 232 120 100 0.142 0.118 1.1 372.2 1.2 29.8 100 5000 4th Post 24 Static M2 Concrete 3 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 213 120 100 0.142 0.118 2.5 453.0 1.2 29.8 100 5000 4th Post 50 Static M2 Concrete 4 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 275 120 100 0.142 0.118 1.1 189.3 1.2 29.8 100 5000 4th Post 50 Static M2 Concrete 5 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 325 120 100 0.142 0.118 2.5 23.4 1.2 29.8 100 5000 4th Post 50 Static M2 Concrete 6 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 316 120 100 0.142 0.118 1.1 14.9 1.2 29.8 100 5000 4th Post 51 Static M2 Concrete 7 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 307 120 100 0.142 0.118 1.1 53.2 1.2 29.8 100 5000 4th Post 51 Static M2 Concrete 8 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 316 120 100 0.142 0.118 2.5 14.9 1.2 29.8 100 5000 4th Post 51 Static M2 Concrete 9 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 364 120 100 0.142 0.118 1.1 189.3 1.2 29.8 100 5000 4th Post 76 Static M2 Concrete 10 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 287 120 100 0.142 0.118 9.5 138.2 1.2 29.8 100 5000 4th Post 76 Static M2 Concrete 11 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 256 120 100 0.142 0.118 2.5 270.1 1.2 29.8 100 5000 4th Post 76 Static M2 Concrete 12 3/12/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 312 120 100 0.142 0.118 1.1 31.9 1.2 29.8 100 5000 4th Post 128 Static M2 Concrete 13 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 367 120 100 0.142 0.118 6.0 202.0 1.2 29.8 100 5000 4th Post 128 Static M2 Concrete 14 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 348 120 100 0.142 0.118 1.1 121.2 1.2 29.8 100 5000 4th Post 128 Static M2 Concrete 15 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 356 120 100 0.142 0.118 2.5 155.3 1.2 29.8 100 5000 4th Post 144 Static M2 Concrete 16 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 401 120 100 0.142 0.118 9.5 346.7 1.2 29.8 100 5000 4th Post 144 Static M2 Concrete 17 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 332 120 100 0.142 0.118 1.1 53.2 1.2 29.8 100 5000 4th Post 144 Static M2 Concrete 18 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 390 120 100 0.142 0.118 9.5 299.9 1.2 29.8 100 5000 4th Post 145 Static M2 Concrete 19 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 369 120 100 0.142 0.118 6.0 210.6 1.2 29.8 100 5000 4th Post 145 Static M2 Concrete 20 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 340 120 100 0.142 0.118 2.5 87.2 1.2 29.8 100 5000 4th Post 145 Static M2 Concrete 21 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 331 120 100 0.142 0.118 1.1 48.9 1.2 29.8 100 5000 4th Post 154 Static M2 Concrete 22 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 369 120 100 0.142 0.118 2.5 210.6 1.2 29.8 100 5000 4th Post 154 Static M2 Concrete 23 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 351 120 100 0.142 0.118 6.0 134.0 1.2 29.8 100 5000 4th Post 154 Static M2 Concrete 24 3/8/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 366 120 100 0.142 0.118 6.0 197.8 1.2 29.8 100 5000 4th Post 158 Static M2 Concrete 25 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 341 120 100 0.142 0.118 9.5 91.5 1.2 29.8 100 5000 4th Post 158 Static M2 Concrete 26 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 305 120 100 0.142 0.118 6.0 61.7 1.2 29.8 100 5000 4th Post 158 Static M2 Concrete 27 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 299 120 100 0.142 0.118 2.5 87.2 1.2 29.8 100 5000 4th Post 168 Static M2 Concrete 28 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 322 120 100 0.142 0.118 2.5 10.6 1.2 29.8 100 5000 4th Post 168 Static M2 Concrete 29 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 325 120 100 0.142 0.118 9.5 23.4 1.2 29.8 100 5000 4th Post 168 Static M2 Concrete 30 3/13/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 331 120 100 0.142 0.118 6.0 48.9 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 4TH FLOOR POST SURVEY SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 4th Post 24 Smear M1 Floor 1 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 110 120 100 0.294 0.198 1.0 13.7 1.7 18.9 20 1000 4th Post 24 Smear M1 Floor 2 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 116 120 100 0.294 0.198 0.7 28.9 1.7 18.9 20 1000 4th Post 24 Smear M1 Floor 3 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 3 115 120 100 0.294 0.198 4.4 26.3 1.7 18.9 20 1000 4th Post 50 Smear M1 Floor 4 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 111 120 100 0.294 0.198 0.7 16.2 1.7 18.9 20 1000 4th Post 50 Smear M1 Floor 5 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 113 120 100 0.294 0.198 0.7 21.3 1.7 18.9 20 1000 4th Post 50 Smear M1 Floor 6 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 145 120 100 0.294 0.198 0.7 102.2 1.7 18.9 20 1000 4th Post 64 Smear M1 Floor 7 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 116 120 100 0.294 0.198 1.0 28.9 1.7 18.9 20 1000 4th Post 64 Smear M1 Floor 8 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 111 120 100 0.294 0.198 0.7 16.2 1.7 18.9 20 1000 4th Post 64 Smear M1 Floor 9 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 120 120 100 0.294 0.198 1.0 39.0 1.7 18.9 20 1000 4th Post 76 Smear M1 Floor 10 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 82 120 100 0.294 0.198 1.0 30.4 2.0 18.0 20 1000 4th Post 76 Smear M1 Floor 11 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 3 85 120 100 0.294 0.198 4.1 22.8 2.0 18.0 20 1000 4th Post 76 Smear M1 Floor 12 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 3 105 120 100 0.294 0.198 4.1 27.8 2.0 18.0 20 1000 4th Post 128 Smear M1 Floor 13 3/6/2022 Concrete 2929 SN121870/ 43101 PR126405 2 480 600 0 102 120 100 0.294 0.198 0.7 15.2 1.7 18.2 20 1000 4th Post 128 Smear M1 Floor 14 3/6/2022 Concrete 2929 SN121870/ 43101 PR126405 2 480 600 1 99 120 100 0.294 0.198 1.0 7.6 1.7 18.2 20 1000 4th Post 128 Smear M1 Floor 15 3/6/2022 Concrete 2929 SN121870/ 43101 PR126405 2 480 600 0 88 120 100 0.294 0.198 0.7 20.2 1.7 18.2 20 1000 4th Post 144 Smear M1 Floor 16 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 2 88 120 100 0.294 0.198 3.4 16.2 1.0 18.0 20 1000 4th Post 144 Smear M1 Floor 17 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 93 120 100 0.294 0.198 0.0 3.5 1.0 18.0 20 1000 4th Post 144 Smear M1 Floor 18 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 96 120 100 0.294 0.198 0.0 4.0 1.0 18.0 20 1000 4th Post 145 Smear M1 Floor 19 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 88 120 100 0.294 0.198 0.0 16.2 1.0 18.0 20 1000 4th Post 145 Smear M1 Floor 20 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 95 120 100 0.294 0.198 0.0 1.5 1.0 18.0 20 1000 4th Post 145 Smear M1 Floor 21 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 96 120 100 0.294 0.198 1.7 4.0 1.0 18.0 20 1000 4th Post 154 Smear M1 Floor 22 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 94 120 100 0.294 0.198 1.7 1.0 1.0 18.0 20 1000 4th Post 154 Smear M1 Floor 23 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 102 120 100 0.294 0.198 1.7 19.2 1.0 18.0 20 1000 4th Post 154 Smear M1 Floor 24 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 0 84 120 100 0.294 0.198 0.0 26.3 1.0 18.0 20 1000 4th Post 158 Smear M1 Floor 25 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 2 82 120 100 0.294 0.198 3.4 31.4 1.0 18.0 20 1000 4th Post 158 Smear M1 Floor 26 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 2 84 120 100 0.294 0.198 3.4 26.3 1.0 18.0 20 1000 4th Post 158 Smear M1 Floor 27 3/8/2022 Concrete 2929 SN121870/ 43101 PR126405 0 472 600 1 99 120 100 0.294 0.198 1.7 11.6 1.0 18.0 20 1000 4th Post 168 Smear M1 Floor 28 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 86 120 100 0.294 0.198 1.0 20.2 2.0 18.0 20 1000 4th Post 168 Smear M1 Floor 29 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 1 103 120 100 0.294 0.198 0.7 22.8 2.0 18.0 20 1000 4th Post 168 Smear M1 Floor 30 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 84 120 100 0.294 0.198 1.0 25.3 2.0 18.0 20 1000 Page 1 of 1

VARICK STREET PIPE REMOVAL 5TH FLOOR POST SURVEY STATIC MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Background Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 5th Post 24 Static M2 Concrete 1 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 313 120 100 0.142 0.118 1.1 27.6 1.2 29.8 100 5000 5th Post 24 Static M2 Concrete 2 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 342 120 100 0.142 0.118 1.1 95.7 1.2 29.8 100 5000 5th Post 24 Static M2 Concrete 3 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 224 120 100 0.142 0.118 6.0 406.2 1.2 29.8 100 5000 5th Post 76 Static M2 Concrete 4 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 195 120 100 0.142 0.118 2.5 529.6 1.2 29.8 100 5000 5th Post 76 Static M2 Concrete 5 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 243 120 100 0.142 0.118 1.1 325.4 1.2 29.8 100 5000 5th Post 76 Static M2 Concrete 6 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 265 120 100 0.142 0.118 6.0 231.8 1.2 29.8 100 5000 5th Post 154 Static M2 Concrete 7 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 3 338 120 100 0.142 0.118 9.5 78.7 1.2 29.8 100 5000 5th Post 154 Static M2 Concrete 8 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 329 120 100 0.142 0.118 1.1 40.4 1.2 29.8 100 5000 5th Post 154 Static M2 Concrete 9 3/5/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 2 372 120 100 0.142 0.118 6.0 223.3 1.2 29.8 100 5000 5th Post 168 Static M2 Concrete 10 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 0 286 120 100 0.142 0.118 1.1 142.5 1.2 29.8 100 5000 5th Post 168 Static M2 Concrete 11 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 262 120 100 0.142 0.118 2.5 244.6 1.2 29.8 100 5000 5th Post 168 Static M2 Concrete 12 3/19/2022 M2Concrete 2360 SN184965/ 4393 PR396867 3 3195 1200 1 260 120 100 0.142 0.118 2.5 253.1 1.2 29.8 100 5000 Page 1 of 1

VARICK STREET PIPE REMOVAL 5TH FLOOR POST SURVEY SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Seq. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 5th Post 24 Smear M1 Floor 1 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 1 110 120 100 0.294 0.198 1.0 13.7 1.7 18.9 20 1000 5th Post 24 Smear M1 Floor 2 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 3 115 120 100 0.294 0.198 4.4 26.3 1.7 18.9 20 1000 5th Post 76 Smear M1 Floor 3 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 92 120 100 0.294 0.198 1.0 5.1 2.0 18.0 20 1000 5th Post 76 Smear M1 Floor 4 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 1 102 120 100 0.294 0.198 0.7 20.2 2.0 18.0 20 1000 5th Post 76 Smear M1 Floor 5 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 87 120 100 0.294 0.198 1.0 17.7 2.0 18.0 20 1000 5th Post 154 Smear M1 Floor 6 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 108 120 100 0.294 0.198 1.0 34.9 2.0 18.0 20 1000 5th Post 154 Smear M1 Floor 7 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 92 120 100 0.294 0.198 1.0 5.6 2.0 18.0 20 1000 5th Post 154 Smear M1 Floor 8 3/12/2022 Concrete 2929 SN121870/ 43101 PR126405 3 471 600 0 102 120 100 0.294 0.198 1.0 19.7 2.0 18.0 20 1000 5th Post 168 Smear M1 Floor 9 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 1 102 120 100 0.294 0.198 0.7 20.2 2.0 18.0 20 1000 5th Post 168 Smear M1 Floor 10 3/13/2022 Concrete 2929 SN121870/ 43101 PR126405 3 470 600 0 91 120 100 0.294 0.198 1.0 7.6 2.0 18.0 20 1000 5th Post 204 Smear M1 Floor 11 3/19/2022 Concrete 2929 SN121870/ 43101 PR126405 2 523 600 0 116 120 100 0.294 0.198 0.7 28.9 1.7 18.9 20 1000 Page 1 of 1

Survey Form Location: 3rd, 4th & 5th Floor RWP# Survey # Survey Type:

Site: 201 Varick Street, New York, NY NA NA Contamination pg. 1 of Smear (CPM/100 cm2)

Direct Count (CPM/Direct Frisk)

No. No.

1 26 2 N 27 N 3 A 28 A Survey Notes:

4 29 Survey performed on piping that was removed from Column locations 50, 76 and 168 5 30 on 3rd, 4th and 5th Floor. Survey consisted of direct static measurements with 2221/ 44-6 31 6 collected inside the upstream end of each pipe segment and corresponding smear 7 32 measurements for removable radioactivity counted with an onsite 2929/43-10-1 smear 8 33 counter. Direct static measurements were counted for 1-minute and smear samples were counted for 2-minutes. Statistical analysis on static measurement data was 9 34 performed to identify outliers that may be indicative of elevated radioactivity. Mean + 3-10 35 sigma was used for 2221/44-6 static data set as Investigation Level (IL) to identify 11 36 outliers. 2929/43-10-1 background was counted for 10-minutes during the daily QC 12 37 check on the specific day the smear sample was counted.

13 38 See subsequent survey pages for direct static (2221/44-6) and smear measurement 14 39 results (2929/43-10-1).

15 40 16 41 See survey map on subsequent pages for pipe removal locations located on the 3rd, 17 42 4th and 5th Floor of 201 Varick St.

18 43 19 44 20 45 21 46 22 47 23 48 24 49 25 50 Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Date Key Stephan Owe 3/5/2022 2929 SN121870 12/3/2022 43-10-1 PR126405 2221 SN161580 See Survey Notes 44-6 PR051218 Reviewed By: Date:

OP-001-02 CABRERA SERVICES, INC.

Column 50 Pipe Survey Vertical 2221/ 446 Meas. ID Comment 1min Static (cpm) 504V01 18 504V02 23 504V03 20 504V04 17 504V05 20 504V06 18 Summary Statistics

  1. of Measurements 6 Minimum 17 Maximum 23 Mean 19.3 Median 19 Standard Deviation () 2.0 Mean + 3 (3z) 25.2
  1. of Measurements 3z 0 Meter/ Probe: 2221/446 (SN161580/PR051218)

Comment: Open Window

Column 76 Pipe Survey Horizontal 2221/ 446 Meas. ID Comment 1min Static (cpm) 764H01 14 Y (2openings) 764H01a 7 Y (2openings) 764H02 6 764H03 19 764H04 9 764H05 9 764H06 15 764H07 22 764H08 13 764H09 10 764H10 7 764H11 8 764H12 7 764H13 13 764H14 11 764H15 12 764H16 15 764H17 15 764H18 19 764H19 21 764H20 8 764H21 9 764H22 14 764H23 10 764H24 8 764H25 8 764H26 14 764H27 12 764H28 12 764H29 10 764H30 18 764H31 11 764H32 11 764H33 10 764H34 7 764H35 8 764H36 6 764H37 14 Summary Statistics

  1. of Measurements 38 Minimum 6 Maximum 22 Mean 11.6 Median 11 Standard Deviation 4.1 Mean + 3 (3z) 24.1
  1. of Measurements 3z 0 Meter/ Probe: 2221/446 (SN161580/PR051218)

Comment: Open Window

Column 76 Pipe Survey Vertical 2221/ 446 Meas. ID Comment 1min Static (cpm) 764V01 12 764V02 14 764V03 8 764V04 15 Summary Statistics

  1. of Measurements 4 Minimum 8 Maximum 15 Mean 12.3 Median 13 Standard Deviation 2.7 Mean + 3 (3z) 20.3
  1. of Measurements 3z 0 Meter/ Probe: 2221/446 (SN161580/PR051218)

Comment: Open Window

Column 168 Pipe Survey Horizontal 2221/ 446 Meas. ID Comment 1min Static (cpm) 1684H01 13 1684H02 14 1684H03 21 1684H04 11 1684H05 16 1684H06 6 1684H07 11 1684H08 12 1684H09 17 1684H10 10 1684H11 10 1684H12 13 1684H13 13 1684H14 17 Summary Statistics

  1. of Measurements 14 Minimum 6 Maximum 21 Mean 13.1 Median 13 Standard Deviation 3.6 Mean + 3 (3z) 24.0
  1. of Measurements 3z 0 Meter/ Probe: 2221/446 (SN161580/PR051218)

Comment: Open Window

Column 168 Pipe Survey Vertical 2221/ 446 Meas. ID Comment 1min Static (cpm) 1685V01 16 Vertical adjacent to C149 to 5th Floor 1685V02 14 Vertical adjacent to C168 5th Floor 1685V03 15 Vertical adjacent to C168 5th Floor 1684V04 16 Vertical adjacent to C168 to 4th Floor 1684V05 15 Vertical adjacent to C168 to 4th Floor 1684V06 6 Vertical adjacent to C168 to 4th Floor 1684V07 12 Vertical adjacent to C168 to 4th Floor 1684V08 9 Vertical adjacent to C168 to 4th Floor Summary Statistics

  1. of Measurements 8 Minimum 6 Maximum 16 Mean 12.9 Median 14.5 Standard Deviation 3.4 Mean + 3 (3z) 23.1
  1. of Measurements 3z 0 Meter/ Probe: 2221/446 (SN161580/PR051218)

Comment: Open Window

VARICK STREET PIPE REMOVAL COLUMN 50 PIPING SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Meas. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm )

2 100 cm )

2 4th Characterization 50 Smear M1 Pipe 504V01 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 2 116 120 100 0.294 0.198 2.7 28.9 1.7 18.9 20 1000 4th Characterization 50 Smear M1 Pipe 504V02 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 2 106 120 100 0.294 0.198 2.7 3.5 1.7 18.9 20 1000 4th Characterization 50 Smear M1 Pipe 504V03 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 3 96 120 100 0.294 0.198 4.4 21.8 1.7 18.9 20 1000 4th Characterization 50 Smear M1 Pipe 504V04 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 2 126 120 100 0.294 0.198 2.7 54.2 1.7 18.9 20 1000 4th Characterization 50 Smear M1 Pipe 504V05 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 0 110 120 100 0.294 0.198 0.7 13.7 1.7 18.9 20 1000 4th Characterization 50 Smear M1 Pipe 504V06 3/19/2022 NA 2929 SN121870/ 43101 PR126405 2 523 600 0 111 120 100 0.294 0.198 0.7 16.2 1.7 18.9 20 1000

VARICK STREET PIPE REMOVAL COLUMN 76 PIPING SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Meas. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm )

2 100 cm )

2 4th Characterization 76 Smear M1 Pipe 764H01 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 1 184 120 100 0.294 0.198 0.7 227.3 2.0 18.0 20 1000 4th Characterization 76 Smear M1 Pipe 764H02 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 1 102 120 100 0.294 0.198 0.7 19.7 2.0 18.0 20 1000 4th Characterization 76 Smear M1 Pipe 764H03 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 2 104 120 100 0.294 0.198 2.4 24.8 2.0 18.0 20 1000 4th Characterization 76 Smear M1 Pipe 764H04 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 0 102 120 100 0.294 0.198 1.0 19.7 2.0 18.0 20 1000 4th Characterization 76 Smear M1 Pipe 764H05 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 3 116 120 100 0.294 0.198 4.1 55.2 2.0 18.0 20 1000 4th Characterization 76 Smear M1 Pipe 764H06 3/12/2022 NA 2929 SN121870/ 43101 PR126405 3 471 600 0 94 120 100 0.294 0.198 1.0 0.5 2.0 18.0 20 1000

VARICK STREET PIPE REMOVAL COLUMN 168 PIPING SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Floor/ Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Meas. Wall/ Meas. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

Floor Survey Type Column Type Meter Ceiling No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm2) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2) 4th Characterization 168 Smear M1 Pipe 1684H01 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 2 88 120 100 0.294 0.198 2.4 15.2 2.0 18.0 20 1000 4th Characterization 168 Smear M1 Pipe 1684H02 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 1 97 120 100 0.294 0.198 0.7 7.6 2.0 18.0 20 1000 4th Characterization 168 Smear M1 Pipe 1684H03 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 4 96 120 100 0.294 0.198 5.8 5.1 2.0 18.0 20 1000 4th Characterization 168 Smear M1 Pipe 1684H04 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 3 101 120 100 0.294 0.198 4.1 17.7 2.0 18.0 20 1000 4th Characterization 168 Smear M1 Pipe 1684H05 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 0 113 120 100 0.294 0.198 1.0 48.1 2.0 18.0 20 1000 4th Characterization 168 Smear M1 Pipe 1684H06 3/13/2022 NA 2929 SN121870/ 43101 PR126405 3 470 600 0 82 120 100 0.294 0.198 1.0 30.4 2.0 18.0 20 1000

Survey Form Location: Basement Room B-10 RWP# Survey # Survey Type:

Site: 201 Varick Street, New York, NY NA NA Contamination pg. 1 of 2

Smear (CPM/100 cm )

Direct Count (CPM/Direct Frisk)

No. No. Piping from Smear 2min Ct Dose Rate Drum #

1 26 Column # Alpha Ct Beta Ct µrem/hr 2 N 27 N 1 158 0 96 4 3 A 28 A 2 154 1 92 5 4 29 3 145 0 112 4 5 30 4 168 0 101 5 6 31 5 128 0 108 5 7 32 6 76 1 96 8 8 33 7 76 0 81 4 9 34 8 76 0 121 8 10 35 9 76 2 102 9 11 36 10 76 1 94 8 12 37 11 168 0 102 6 13 38 12 76 0 196 7 14 39 13 24 3 96 8 15 40 14 64 1 112 7 16 41 15 50 & 51 0 88 7 Survey Notes:

Survey performed on exterior surfaces of drums stored in RCA in 17 42 16 168 1 86 5 basement room B-10. Survey consisted of smear measurements for 18 43 17* PPE 0 78 8 removable radioactivity counted with an onsite 2929/43-10-1 smear 19 44 18* PPE 1 119 8 counter and dose rate measurements with Bicron microrem in units of urem/hr. Smear samples were counted for 2-minutes. 2929/43-10-1 20 45

  • Drum 17 & 18 from previous effort (2021) background was counted for 10-minutes during the daily QC check on 21 46 the specific day the smear sample was counted.

22 47 See subsequent survey pages for smear measurement results.

23 48 24 49 25 50 Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Date Key Karl Retherford 3/19/2022 2929 SN121870 12/3/2022 43-10-1 PR126405 Bicron SN1280 5 urem/hr 7/23/2021 See Survey Notes Reviewed By: Date:

OP-001-02 CABRERA SERVICES, INC.

VARICK STREET PIPE REMOVAL BASEMENT ROOM B10 RCA DRUM STORAGE SURVEY SMEAR MEASUREMENTS Alpha Reference Survey Detector Alpha Beta Release Beta Release Reference Reference Count Survey Survey Count Active Alpha Beta Critical Critical Criteria Criteria Floor/ Meas. Meas. Instrument/ Alpha Beta Time Alpha Beta Time Area Alpha Beta (dpm/ (dpm/ Value Value (dpm/ (dpm/

2 Room Survey Type Drum # Type Meter NA No. Date Material/ Surface Serial Numbers Counts Counts (seconds) Counts Counts (seconds) (cm ) Efficiency Efficiency 100 cm2) 100 cm2) (counts) (counts) 100 cm2) 100 cm2)

B10 Contamination 1 Smear M1 NA Drum01 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 96 120 100 0.294 0.198 0.7 21.8 1.7 18.9 20 1000 B10 Contamination 2 Smear M1 NA Drum02 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 92 120 100 0.294 0.198 1.0 31.9 1.7 18.9 20 1000 B10 Contamination 3 Smear M1 NA Drum03 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 112 120 100 0.294 0.198 0.7 18.7 1.7 18.9 20 1000 B10 Contamination 4 Smear M1 NA Drum04 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 101 120 100 0.294 0.198 0.7 9.1 1.7 18.9 20 1000 B10 Contamination 5 Smear M1 NA Drum05 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 108 120 100 0.294 0.198 0.7 8.6 1.7 18.9 20 1000 B10 Contamination 6 Smear M1 NA Drum06 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 96 120 100 0.294 0.198 1.0 21.8 1.7 18.9 20 1000 B10 Contamination 7 Smear M1 NA Drum07 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 81 120 100 0.294 0.198 0.7 59.7 1.7 18.9 20 1000 B10 Contamination 8 Smear M1 NA Drum08 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 121 120 100 0.294 0.198 0.7 41.5 1.7 18.9 20 1000 B10 Contamination 9 Smear M1 NA Drum09 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 2 102 120 100 0.294 0.198 2.7 6.6 1.7 18.9 20 1000 B10 Contamination 10 Smear M1 NA Drum10 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 94 120 100 0.294 0.198 1.0 26.8 1.7 18.9 20 1000 B10 Contamination 11 Smear M1 NA Drum11 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 102 120 100 0.294 0.198 0.7 6.6 1.7 18.9 20 1000 B10 Contamination 12 Smear M1 NA Drum12 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 196 120 100 0.294 0.198 0.7 231.3 1.7 18.9 20 1000 B10 Contamination 13 Smear M1 NA Drum13 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 3 96 120 100 0.294 0.198 4.4 21.8 1.7 18.9 20 1000 B10 Contamination 14 Smear M1 NA Drum14 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 112 120 100 0.294 0.198 1.0 18.7 1.7 18.9 20 1000 B10 Contamination 15 Smear M1 NA Drum15 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 88 120 100 0.294 0.198 0.7 42.0 1.7 18.9 20 1000 B10 Contamination 16 Smear M1 NA Drum16 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 86 120 100 0.294 0.198 1.0 47.1 1.7 18.9 20 1000 B10 Contamination 17 Smear M1 NA Drum17 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 0 78 120 100 0.294 0.198 0.7 67.3 1.7 18.9 20 1000 B10 Contamination 18 Smear M1 NA Drum18 3/19/2022 Drum 2929 SN121870/ 43101 PR126405 2 523 600 1 119 120 100 0.294 0.198 1.0 36.4 1.7 18.9 20 1000

Survey Form Location: Basement Room B-10 RWP# Survey # Survey Type:

Site: 201 Varick Street, New York, NY NA NA Contamination pg. 1 of Smear (CPM/100 cm2)

Direct Count (CPM/Direct Frisk)

No. No.

1 26 2 N 27 N 2221/4410 Static Meas. #

(cpm) (1min) 3 A 28 A 4 29 5 1 6818 6 6898 5 30 2 2 3 6641 6 31 7 32 4 7109 3

1 8 33 5 8711 9 34 6 7158 10 35 BKG = 6213 cpm 4

11 36 12 37 13 38 Survey Notes:

Survey performed on Column 111 piping via utility 14 39 access panel on the 5th floor womens bathroom. A 15 40 Ludlum 2221/44-10 (2x2 NaI) was lowered down 16 41 through the access panel approximately 8-feet and 1-minute static measurements in units of cpm were 17 42 collected adjacent to accessible portions of the pipe.

18 43 An ambient background measurement was collected 19 44 at the access panel opening.

20 45 21 46 22 47 23 48 24 49 25 50 Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Date Key Stephan Owe 3/12/2022 2221 SN149942 1/27/2022 44-10 PR208815 See Survey Notes Reviewed By: Date:

OP-001-02 CABRERA SERVICES, INC.

Survey Form Location: Verick ST Survey Site: Verick ST RWP# N/A Survey # Varick St-2022-IS-003 Type:

Incomming Page 1 OF 2 Smear Direct Count (DPM/100 cm2) (CPM/Direct Frisk)

No. No. a 1 1 2 144 2 2 0 157 3 3 5 138 4 4 3 153 5 5 0 136 6 6 4 141 7 7 3 162 8 8 2 144 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 Direct measurements taken 21 21 1

at same location 22 22 5

23 23 2 as smears 24 24 6

25 25 3 26 26 27 27 4 28 28 7 29 29 30 30 8 31 31 32 32 33 33 34 34 35 35 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due Key (cpm) (cpm)

See page 2 for smear results Ludlum 2224- 227246/PR A/S Location C.Quinn 21-Apr-22 0.142 0.123 0.0 144.0 N/A 2/24/2023 1 / 43-93 244549 Cabrera/ RCT *-* Boundary 21-Apr-22 3030P 287072 0.27 0.14 0 14.4 N/A 2/18/2023 1 Smear Exposure Rate Direct Reading Scott Hay

  • CPM/direct frisk Reviewed By: Date: 25-Apr-22 Grab Sample

Crane NSA 2

dpm/100 cm eff eff Sample Count Time (min) Daily Bkgd Count Time (min) Flag Flag 0.265 0.139 1.0 10.0 10 200

  • Bkgd for count date Date Background Total Sample Total Background Sample Counts Sample Tech.

Date Smear 2 seq. # Sample ID# and Description Smear Counts* Counts (cpm) (cpm) (dpm/100 cm ) > flag > flag Initial Taken Counted 1 truck 4/21/2022 4/21/2022 0 144 2 31 0.0 14.4 2.00 31 7.5 119 CQ 2 4/21/2022 4/21/2022 0 144 1 34 0.0 14.4 1.00 34 3.8 141 CQ 3 4/21/2022 4/21/2022 0 144 1 28 0.0 14.4 1.00 28 3.8 98 CQ 4 4/21/2022 4/21/2022 0 144 1 23 0.0 14.4 1.00 23 3.8 62 CQ 5 4/21/2022 4/21/2022 0 144 2 27 0.0 14.4 2.00 27 7.5 91 CQ 6 4/21/2022 4/21/2022 0 144 0 28 0.0 14.4 0.00 28 0.0 98 CQ 7 4/21/2022 4/21/2022 0 144 0 21 0.0 14.4 0.00 21 0.0 47 CQ 8 4/21/2022 4/21/2022 0 144 0 19 0.0 14.4 0.00 19 0.0 33 CQ

Survey Form Location: Verick ST Survey Site: Verick ST RWP# N/A Survey # Varick St-2022-IS-002 Type:

Incoming truck Page 1 OF 2 Smear Direct Count (DPM/100 cm2) (CPM/Direct Frisk)

No. No. a 1 1 1 157 2 2 1 168 3 3 0 132 1

4 4 0 156 5

5 5 3 163 2

6 6 3 170 7 7 3 156 8 8 1 147 6 3 9 9 10 10 11 11 7 4

12 12 13 13 8

14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 Direct measurements taken 32 32 at same location 33 33 34 34 as smears 35 35 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due Key (cpm) (cpm)

See page 2 for smear results Ludlum 2224- 227246/PR A/S Location C.Quinn 21-Apr-22 0.142 0.123 0.0 144.0 N/A 2/24/2023 1 / 43-93 244549 Cabrera/ RCT *-* Boundary 21-Apr-22 3030P 287072 0.27 0.14 0 14.4 N/A 2/18/2023 1 Smear Exposure Rate Direct Reading Scott Hay

  • CPM/direct frisk Reviewed By: Date: 25-Apr-22 Grab Sample

Crane NSA 2

dpm/100 cm eff eff Sample Count Time (min) Daily Bkgd Count Time (min) Flag Flag 0.265 0.139 1.0 10.0 10 200

  • Bkgd for count date Date Background Total Sample Total Background Sample Counts Sample Tech.

Date Smear 2 seq. # Sample ID# and Description Smear Counts* Counts (cpm) (cpm) (dpm/100 cm ) > flag > flag Initial Taken Counted 1 truck 4/21/2022 4/21/2022 0 144 2 23 0.0 14.4 2.00 23 7.5 62 CQ 2 4/21/2022 4/21/2022 0 144 1 25 0.0 14.4 1.00 25 3.8 76 CQ 3 4/21/2022 4/21/2022 0 144 0 24 0.0 14.4 0.00 24 0.0 69 CQ 4 4/21/2022 4/21/2022 0 144 0 29 0.0 14.4 0.00 29 0.0 105 CQ 5 4/21/2022 4/21/2022 0 144 1 32 0.0 14.4 1.00 32 3.8 127 CQ 6 4/21/2022 4/21/2022 0 144 0 28 0.0 14.4 0.00 28 0.0 98 CQ 7 4/21/2022 4/21/2022 0 144 1 26 0.0 14.4 1.00 26 3.8 83 CQ 8 4/21/2022 4/21/2022 0 144 1 30 0.0 14.4 1.00 30 3.8 112 CQ

Survey Form Location: B-10 Survey RWP# NA Survey # VarickSt-2022-55D-SS-001 Outgoing Page 1 of 1 Site: Varick Street Type:

Smear Direct Count (DPM/100 cm2) (DPM/Direct Frisk)

No. No.

1 0 13 1 Drum ID Location Result (rem/hr) 2 2 19 2 1 1 Top 6 1

3 0 17 3 2 Side 6 4 1 19 4 1 Top 5 2

5 0 22 5 2 Side 5 6 0 16 6 1 Top 5 3

7 0 12 7 2 Side 5 8 0 18 8 2 1 Top 6 4

9 0 10 9 2 Side 5 10 0 8 10 1 Top 7 5

11 0 13 11 2 Side 5 12 1 14 12 1 Top 6 6

13 0 20 13 2 Side 6 14 0 16 14 1 Top 5 7

15 1 18 15 2 Side 6 16 0 21 16 1 Top 6 8

17 2 16 17 2 Side 6 18 1 18 18 1 Top 5 9

19 1 20 19 2 Side 5 20 20 1 Top 6 10 21 21 2 Side 6 22 22 1 Top 5 11 23 23 2 Side 5 24 24 1 Top 5 12 25 25 2 Side 6 26 26 1 Top 6 13 27 27 2 Side 6 28 28 1 Top 5 14 29 29 2 Side 5 30 30 1 Top 6 15 31 31 2 Side 6 32 32 1 Top 6 16 33 33 2 Side 5 34 34 1 Top 5 17 35 35 2 Side 5 36 36 1 Top 6 18 37 37 2 Side 5 38 38 1 Top 6 19 39 39 2 Side 5 40 40 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due (cpm) (cpm) Key 227246 / PR-L Collins 21-Apr-22 43-93 / 2224 244849 0.202 0.159 1 231.5 N/A 2/24/2023 L Collins 21-Apr-22 Bicron m/r 1844 N/A N/A N/A N/A 6 2/15/2023 A/S Location L Collins 21-Apr-22 3030P 287072 0.265 0.139 0.200 15.800 N/A 2/18/2023 *-* Boundary Static Measurement Dose Rate _______ /hr Direct Reading CPM/direct

  • frisk Reviewed By: Scott Hay Date: 25-Apr-22 Grab Sample

Location: Loading Dock Survey RWP# NA Survey # VarickSt-2022-SS-004 OUTGOING Page 1 of 1 Site: Varick Street Type:

Smear Direct Count (DPM/100 cm2) (DPM/Direct Frisk)

Plate# Illinois P808221 No. No.

1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 5 4 13 13 14 14 15 15 5 4

16 16 4

17 17 18 18 5 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due (cpm) (cpm) Key L COLLINS 21-Apr-22 3030P 287072 0.265 0.139 0 14.4 N/A 2/18/2023 L COLLINS 21-Apr-22 Bicron m/r 1844 N/A N/A N/A N/A 6 2/15/2023 A/S Location

  • -* Boundary Smear Dose Rate- µr/hr Direct Reading
  • CPM/direct frisk Reviewed By: Scott Hay Date: 25-Apr-22 Grab Sample

Location: Loading Dock Survey RWP# NA Survey # VarickSt-2022-SS-005 OUTGOING Page 1 of 1 Site: Varick Street Type:

Smear Direct Count (DPM/100 cm2) (DPM/Direct Frisk)

Plate# Illinois P207034 No. No.

1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 4

16 16 4 5

17 17 18 18 5 4

19 19 20 20 4 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 Result (rem/hr) 34 34 35 35 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due (cpm) (cpm) Key L COLLINS 21-Apr-22 3030P 287072 0.265 0.139 0 14.4 N/A 2/18/2023 L COLLINS 21-Apr-22 Bicron m/r 1844 N/A N/A N/A N/A 6 2/15/2023 A/S Location

  • -* Boundary Smear Dose Rate-Ur /hr Direct Reading
  • CPM/direct frisk Reviewed By: Scott Hay Date: 25-Apr-22 Grab Sample

Survey Form Location: B-10 Survey Site: VERICK ST RWP# N/A Survey # Varick St-2022-B10-UR-006 Type:

Free Release Page 1 OF 2 Smear Direct Count (DPM/100 cm2) (CPM/Direct Frisk)

No. No. a 1 1 1 144 2 2 0 157 3 3 5 138 4 4 3 153 5 5 0 136 7

6 6 4 141 8 7 7 3 162 8 8 2 144 9 9 10 10 9 6

11 11 12 12 13 13 14 14 5

15 15 4

16 16 17 17 18 18 3 10 19 19 20 20 21 21 22 22 1 2 23 23 24 24 25 25 26 26 27 27 28 28 29 29 Room B-10 30 30 31 31 32 32 N 33 33 34 34 35 35 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due Key (cpm) (cpm)

See page 2 for smear results Ludlum 2224- 227246/PR A/S Location C.Quinn 21-Apr-22 0.142 0.123 0.0 144.0 N/A 2/24/2023 1 / 43-93 244549 Cabrera/ RCT *-* Boundary ct measurements taken at same location as sm 21-Apr-22 3030P 287072 0.27 0.14 0 14.4 N/A 2/18/2023 1 Smear Exposure Rate Direct Reading Scott Hay

  • CPM/direct frisk Reviewed By: Date: 25-Apr-22 Grab Sample

Crane NSA 2

dpm/100 cm eff eff Sample Count Time (min) Daily Bkgd Count Time (min) Flag Flag 0.265 0.139 1.0 10.0 10 200

  • Bkgd for count date Date Background Total Sample Total Background Sample Counts Sample Tech.

Date Smear 2 seq. # Sample ID# and Description Smear Counts* Counts (cpm) (cpm) (dpm/100 cm ) > flag > flag Initial Taken Counted 1 floor 4/21/2022 4/21/2022 0 144 1 21 0.0 14.4 1.00 21 3.8 47 CQ 2 4/21/2022 4/21/2022 0 144 0 26 0.0 14.4 0.00 26 0.0 83 CQ 3 4/21/2022 4/21/2022 0 144 1 22 0.0 14.4 1.00 22 3.8 55 CQ 4 4/21/2022 4/21/2022 0 144 0 19 0.0 14.4 0.00 19 0.0 33 CQ 5 4/21/2022 4/21/2022 0 144 0 27 0.0 14.4 0.00 27 0.0 91 CQ 6 4/21/2022 4/21/2022 0 144 0 33 0.0 14.4 0.00 33 0.0 134 CQ 7 4/21/2022 4/21/2022 0 144 2 25 0.0 14.4 2.00 25 7.5 76 CQ 8 4/21/2022 4/21/2022 0 144 1 34 0.0 14.4 1.00 34 3.8 141 CQ

Completion Report Removal of the 3rd, 4th and 5th Floor Drain Piping and Drains 201 Varick Street New York, New York May 2022 APPENDIX E Radiological and Mercury Air Monitoring Results TRIO General Contracting

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PERSONNEL AIR MONITORING DATA CALCULATION LOG (Rev 7)

Counting Instrument: 2929 Detector: 43-10-1 Cal. Date: 12/3/2022 Serial #: 121870 Serial #: PR126405 Cal. Due Date OK? OK hank sheet Counting Original Source Source Sample Background Radiation Efficiency Source Source Source Activity Creation Decayed Count time Count time Limiting Alpha Limiting Beta Type (fraction) Nuclide Number (DPM) Date T1/2 (yr) Activity (min) (min) Isotope of Concern Isotope of Concern 10CFR20 10CFR20 Occup.

Alpha 0.294 Th-230 7103-10 7,900 6/16/10 7.54E+04 7899 10 10 Isotope Occup. DAC Isotope DAC Beta 0.198 Tc-99 7105-10 8,930 6/21/2010 2.11E+05 8930 10 10 U-238, U-234, Pu-238 7.10E-12 Th-234, Sr-90 3.80E-08 Air Sample Air Sample Sample Sample Sample Alpha Beta Total BZ Flow Sample Filter Alpha Beta Start Time End Time Gross Alpha Bkg Beta Bkg Alpha Beta Count Count Alpha MDA Beta MDA Run Time rate Gross Beta Efficiency DAC- DAC-Period Period Count Alpha (cpm) (cpm) Activity Activity Concen. Concen. (uCi/cc) (uCi/cc)

(min) (lpm) (Counts) (fraction) hours hours Person Monitored Date/Time Date/Time Date (Counts) (dpm) (dpm) (uCi/cc) (uCi/cc)

Plumbers 3/5/22 0:00 3/5/22 0:00 03/08/22 326 2.5 9 544 0.9 47.2 1.00 0 36 0.00E+00 2.01E-11 0.0 0.0 3.13E-12 2.90E-11 Pipe Area Setup & Cleanup 3/5/22 0:00 3/5/22 0:00 03/08/22 385 2.5 4 468 0.9 47.2 1.00 -2 -2 -7.96E-13 -9.45E-13 -0.7 0.0 2.65E-12 2.45E-11 Plumbers 3/12/22 0:00 3/13/22 0:00 03/14/22 702 2.5 4 495 0.3 46.2 1.00 0 17 8.73E-14 4.28E-12 0.1 0.0 9.40E-13 1.33E-11 Plumbers 3/19/22 0:00 3/19/22 0:00 03/20/22 397 2.5 0 511 0.2 46.2 1.00 -1 25 -3.09E-13 1.12E-11 -0.3 0.0 1.43E-12 2.35E-11 1 of 1

GENERAL/EFFLUENT AIRBORNE CONCENTRATION LOG (Rev 7)

Counting Instrument: 2929 Detector: 43-10-1 Cal. Date: 12/3/2022 Serial #: 121870 Serial #: PR126405 Cal. Due Date OK? OK Original Counting Source Source Sample Background Source Radiation Efficiency Source Source Creation Decayed Count time Count time Limiting Alpha Isotope Limiting Beta Isotope of Activity Type (fraction) Nuclide Number Date T1/2 (yr) Activity (min) (min) of Concern Concern (DPM) 10CFR20 10CFR20 Occupational Occupational DAC Alpha 0.294 Th-230 7103-10 7,900 6/16/10 7.54E+04 7899 10 10 Isotope DAC /Effluent Isotope /Effluent Beta 0.198 Tc-99 7105-10 8,930 6/21/2010 2.11E+05 8930 10 10 U-238, U-234, Pu-238 7.10E-12 Th-234, Sr-90 3.80E-08 Fraction Sample Sample Sample Alpha Beta Fraction Air Sample Air Sample Run Flow Sample Filter Occup or Area Monitored and Air Gross Alpha Bkg Beta Bkg Alpha Beta Count Count Occup or Alpha MDA Beta MDA Start End Time Rate Gross Beta Efficiency Effluent Mover Serial #/Bar Code Alpha (cpm) (cpm) Activity Activity Concen. Concen. Effluent (uCi/cc) (uCi/cc)

Date/Time Date/Time Count (min) (lpm) (Counts) (fraction) Limit (Counts) (dpm) (dpm) (uCi/cc) (uCi/cc) Limit Beta Date Alpha 4th Floor 3/5/22 8:00 3/5/22 15:00 03/08/22 420 60.0 12 544 0.90 47.20 1.00 2 36 4.01E-14 6.50E-13 0.01 0.00 1.01E-13 9.37E-13 4th Floor 3/12/22 0:00 3/13/22 0:00 03/14/22 750 60.0 126 825 0.50 46.20 1.00 54 183 5.41E-13 1.84E-12 0.08 0.00 4.46E-14 5.19E-13 4th Floor 3/19/22 8:00 3/19/22 15:15 03/20/22 435 60.0 155 926 0.20 46.20 1.00 68 234 1.17E-12 4.04E-12 0.16 0.00 5.45E-14 8.95E-13 1 of 1

Completion Report Removal of the 3rd, 4th and 5th Floor Drain Piping and Drains 201 Varick Street New York, New York May 2022 APPENDIX F Analytical Laboratory Data Packages TRIO General Contracting

Completion Report Removal of the 3rd, 4th and 5th Floor Drain Piping and Drains 201 Varick Street New York, New York May 2022 This Page Intentionally Left Blank TRIO General Contracting

1 2

3 4

5 ANALYTICAL REPORT 6

Eurofins St. Louis 13715 Rider Trail North 7 Earth City, MO 63045 Tel: (314)298-8566 8 Laboratory Job ID: 160-44890-1 9 Client Project/Site: 201 Varick Street, NYC For:

10 Cabrera Services 11 50 Founders Plaza Suite 207 12 East Hartford, Connecticut 06108 Attn: Mike Plonski Authorized for release by:

4/15/2022 7:14:04 PM Ivan Vania, Project Manager II (314)298-8566 Ivan.Vania@et.eurofinsus.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

Client: Cabrera Services Laboratory Job ID: 160-44890-1 1 Project/Site: 201 Varick Street, NYC 2

Table of Contents 3 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11 8

Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 10 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Tracer Carrier Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11 12 Page 2 of 28

Case Narrative 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44890-1 3 Laboratory: Eurofins St. Louis 4

Narrative 5

CASE NARRATIVE 6

Client: Cabrera Services 7 Project: 201 Varick Street, NYC 8 Report Number: 160-44890-1 9

10 With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of 11 the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required. 12 Eurofins TestAmerica, St. Louis attests to the validity of the laboratory data generated by Eurofins TestAmerica facilities reported herein. All analyses performed by Eurofins TestAmerica facilities were done using established laboratory SOPs that incorporate QA/QC procedures described in the application methods. Eurofins TestAmericas operations groups have reviewed the data for compliance with the laboratory QA/QC plan, and data have been found to be compliant with laboratory protocols unless otherwise noted below.

The test results in this report meet all NELAP requirements for parameters for which accreditation is required or available. Any exceptions to NELAP requirements are noted in this report. Pursuant to NELAP, this report may not be reproduced, except in full, without the written approval of the laboratory.

Calculations are performed before rounding to avoid round-off errors in calculated results.

All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below.

All solid sample results for Chemistry analyses are reported on an ""as received"" basis unless otherwise indicated by the presence of a

% solids value in the method header. All soil/sediment sample results for radiochemistry analyses are based upon sample as dried and disaggregated with the exception of tritium, carbon-14, and iodine-129 by gamma spectroscopy unless requested as wet weight by the client.

Any minimum detectable concentration (MDC), critical value (DLC), or Safe Drinking Water Act detection limit (SDWA DL) is sample-specific unless otherwise stated elsewhere in this narrative.

Radiochemistry sample results are reported with the count date/time applied as the Activity Reference Date.

Reference the chain of custody and condition upon receipt report for any variations on receipt conditions and temperature of samples on receipt.

Manual Integrations were performed only when necessary and are in compliance with the laboratorys standard operating procedure.

Detailed information can be found in the raw data section of the level IV report.

This laboratory report is confidential and is intended for the sole use of Eurofins TestAmerica and its client.

RECEIPT The samples were received on 3/18/2022 12:43 PM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 17.6º C.

RADIOCHEMISTRY ANALYSES Eurofins St. Louis Page 3 of 28

Case Narrative 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44890-1 (Continued) 3 Laboratory: Eurofins St. Louis (Continued) 4 The matrix for the method blank (MB), laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) (if analyzed), is as close to the samples as can be reasonably achieved. Detailed information can be found in the most current revision of the associated SOP. Method blank (MB) z-scores were within limits and stored in the level IV raw data unless noted in this narrative.

5 ISOTOPIC PLUTONIUM (ALPHA SPECTROMETRY) 6 Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Isotopic Plutonium (Alpha Spectrometry) in accordance with A-01-R. The samples 7 were leached on 03/21/2022, prepared on 04/05/2022 and analyzed on 04/08/2022.

8 Preparation Batch 160-558711:

The samples were prepared at reduced aliquots due to matrix interferences: 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3), 4FR-168-V-COM-002 (160-44890-4), and (160-44890-A-4-A DU).

9 A laboratory control sample/laboratory control sample duplicate (LCS/LCSD) were prepared in addition to a sample duplicate (DUP) for the 10 following samples: 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3),

4FR-168-V-COM-002 (160-44890-4), and (160-44890-A-4-A DU). 11 No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. 12 ISOTOPIC THORIUM (ALPHA SPECTROMETRY)

Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Isotopic Thorium (Alpha Spectrometry) in accordance with DOE A01R_Th. The samples were leached on 03/21/2022, prepared on 04/05/2022 and analyzed on 04/08/2022 and 04/10/2022.

Preparation Batch 160-558708:

A blank population correction was applied to account for contributions to the analyte count rate from sources other than the sample itself.

Interferences may include, but are not limited to, impurities in reagents, tracers, or glassware, or effects due to the measurement process (such as tailing): 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3),

4FR-168-V-COM-002 (160-44890-4), (LCS 160-558708/2-A), (LCSD 160-558708/3-A), (MB 160-558708/1-A), and (160-44890-A-4-N DU).

The samples were prepared at reduced aliquots due to matrix interferences. 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3), 4FR-168-V-COM-002 (160-44890-4), and (160-44890-A-4-A DU).

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

ISOTOPIC URANIUM (ALPHA SPECTROMETRY)

Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Isotopic Uranium (Alpha Spectrometry) in accordance with DOE. The samples were leached on 03/21/2022, prepared on 03/24/2022 and analyzed on 03/30/2022.

No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

RADIUM 226 (7 DAY INGROWTH)

Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Radium 226 (7 day ingrowth) in accordance with DOE GA_01_R. The samples were leached on 03/21/2022, prepared on 03/23/2022 and analyzed on 03/31/2022.

Preparation Batch 160-556862:

Radium-226 is reported in these samples at the client's request. Ra-226 is reported from the 609.31 keV line of bismuth-214. Because the samples have not had a 21-day ingrowth, the activity for Ra-226 is an estimated value and may be biased low. This bias is caused by the disruption of secular equilibrium between Ra-226 and Bi-214 by the loss of Radon-222 during sample preparation: The following samples are affected: 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3),

4FR-168-V-COM-002 (160-44890-4). and (160-44890-A-3-C DU).

Insufficient sample was provided for the following sample to fill a geometry (e.g. tuna can) calibrated for Ra-226 analysis by gamma Eurofins St. Louis Page 4 of 28

Case Narrative 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44890-1 (Continued) 3 Laboratory: Eurofins St. Louis (Continued) 4 spectroscopy. A 25mL Solid geometry was used. The use of a different geometry could potentially bias the results low due to the loss of radon into the headspace of the container: 4FR-76-V-COM-002 (160-44890-2).

5 Insufficient sample was provided to fill a geometry (e.g. tuna can) calibrated for Ra-226 analysis by gamma spectroscopy. A 100mL Solid geometry was used. The use of a different geometry could potentially bias the results low due to the loss of radon into the headspace of 6 the container: 4FR-168-V-COM-002 (160-44890-4).

7 Foe samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3),

4FR-168-V-COM-002 (160-44890-4), and (160-44890-A-3-C DU) many isotopes requested for analysis do not have any gamma 8 emissions, or the gamma emissions they do have are very poor. Often, such analytes are reported by gamma spectrometry assuming secular equilibrium with a longer-lived parent. The client should ensure that such inference is acceptable for their sample based upon process knowledge. The following assumptions were made for this report:

9 Inferred Reported From to 10 Nuclide Nuclide Th-234 Pa-234 11 Th-234 U-238 Pb-210 Po-210 12 Pb-210 Bi-210 Cs-137 Ba-137m Po-216 Pb-212 Xe-131m Xe-131 Sb-125 Te-125m Ag-108m Ag-108 Rh-106 Ru-106 Pb-212 Th-228 Pb-212 Ra-224 U-235 Th-231 Ac-228 Th-232 Ac-228 Ra-228 Th-227 Ra-223 Th-227 Ac-227 Th-227 Bi-214 Th-227 Pb-211 Bi-214 Ra-226 No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

NICKEL-63 Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Nickel-63 in accordance with STL-RC-0055. The samples were leached on 03/21/2022, prepared on 04/11/2022 and analyzed on 04/13/2022.

Preparation Batch 160-559632:

The requested limit (RL) was not met for the samples. This was due to a reduced sample volume attributed to the presence of matrix interferences noted during the initial preparation: 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2),

4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4).

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

TOTAL BETA STRONTIUM (GFPC)

Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Total Beta Strontium (GFPC) in accordance with SR-03-RC. The samples were Eurofins St. Louis Page 5 of 28

Case Narrative 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44890-1 (Continued) 3 Laboratory: Eurofins St. Louis (Continued) 4 leached on 03/21/2022, prepared on 03/24/2022 and 04/06/2022 and analyzed on 03/29/2022 and 04/12/2022.

Preparation Batch 160-556937:

5 The carrier recovery was outside the lower control limit of 40%. There was physical evidence of matrix interference apparent during the initial preparation of the sample. The QC samples associated with the batch have acceptable carrier recovery indicating the presence of 6 matrix interference: 4FR-168-H-COM-001 (160-44890-3).

7 No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

8 TECHNETIUM-99 (LSC)

Samples 4FR-76-H-COM-001 (160-44890-1), 4FR-76-V-COM-002 (160-44890-2), 4FR-168-H-COM-001 (160-44890-3) and 4FR-168-V-COM-002 (160-44890-4) were analyzed for Technetium-99 (LSC) in accordance with DOE Tc-02-RC. The samples were 9

leached on 03/21/2022, prepared on 03/29/2022 and analyzed on 04/02/2022.

10 No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

11 12 Eurofins St. Louis Page 6 of 28

1 2

3 4

5 6

7 8

9 10 11 12 Page 7 of 28

1 Login Sample Receipt Checklist 2

Client: Cabrera Services Job Number: 160-44890-1 3 Login Number: 44890 List Source: Eurofins St. Louis 4

List Number: 1 Creator: Johnson, Autumn R 5

Question Answer Comment 6 Radioactivity wasn't checked or is </= background as measured by a survey True meter. 7 The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True 8 The cooler or samples do not appear to have been compromised or True tampered with. 9 Samples were received on ice. N/A Cooler Temperature is acceptable. True 10 Cooler Temperature is recorded. True COC is present. True 11 COC is filled out in ink and legible. True COC is filled out with all pertinent information. True 12 Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)

Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True

<6mm (1/4").

Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins St. Louis Page 8 of 28

Definitions/Glossary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Qualifiers 3

Rad Qualifier Qualifier Description 4 Q Carrier is outside acceptance limits.

U Undetected at the Limit of Detection.

5 Glossary Abbreviation These commonly used abbreviations may or may not be present in this report.

6 Listed under the "D" column to designate that the result is reported on a dry weight basis

%R Percent Recovery 7

CFL Contains Free Liquid CFU Colony Forming Unit 8 CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) 9 Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) 10 DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) 11 EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoD/DOE) 12 LOQ Limit of Quantitation (DoD/DOE)

MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit ML Minimum Level (Dioxin)

MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown)

NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

TNTC Too Numerous To Count Eurofins St. Louis Page 9 of 28

Method Summary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 3

Method Method Description Protocol Laboratory A-01-R Isotopic Plutonium (Alpha Spectrometry) DOE TAL SL A-01-R Isotopic Thorium (Alpha Spectrometry) DOE TAL SL 4

A-01-R Isotopic Uranium (Alpha Spectrometry) DOE TAL SL GA-01-R Radium-226 & Other Gamma Emitters (GS) DOE TAL SL 5 SR-03-RC Total Beta Strontium (GFPC) DOE TAL SL ST-RC-0055 Nickel-59/Nickel-63 (LSC) TAL-STL TAL SL 6 TC-02-RC Technetium-99 (LSC) DOE TAL SL DPS-0 Preparation, Digestion/ Precipitate None TAL SL 7 Dry and Grind Preparation, Dry and Grind None TAL SL Ext_Chrom_LSC Preparation, Extraction Chromatography None TAL SL 8 ExtChrom Preparation, Extraction Chromatography Resin Actinide Separation None TAL SL Fill Geo-7 Fill Geometry, 7 Day Ingrowth None TAL SL 9 Protocol

References:

10 DOE = U.S. Department of Energy None = None TAL-STL = TestAmerica Laboratories, St. Louis, Facility Standard Operating Procedure.

11 Laboratory

References:

12 TAL SL = Eurofins St. Louis, 13715 Rider Trail North, Earth City, MO 63045, TEL (314)298-8566 Eurofins St. Louis Page 10 of 28

Sample Summary Client: Cabrera Services Job ID: 160-44890-1 1

Project/Site: 201 Varick Street, NYC 2

Lab Sample ID Client Sample ID Matrix Collected Received 3 160-44890-1 4FR-76-H-COM-001 Solid 03/14/22 10:00 03/18/22 12:43 160-44890-2 4FR-76-V-COM-002 Solid 03/14/22 10:10 03/18/22 12:43 4 160-44890-3 4FR-168-H-COM-001 Solid 03/14/22 10:20 03/18/22 12:43 160-44890-4 4FR-168-V-COM-002 Solid 03/14/22 10:30 03/18/22 12:43 5 6

7 8

9 10 11 12 Page 11 of 28 Eurofins St. Louis

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-76-H-COM-001 Lab Sample ID: 160-44890-1 Date Collected: 03/14/22 10:00 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Count Total 5 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Plutonium-238 0.106 U 0.108 0.108 1.00 0.153 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Plutonium-239/240 0.109 U 0.0989 0.0993 1.00 0.114 pCi/g 04/05/22 16:15 04/08/22 21:04 1 7

Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 95.0 30 - 110 04/05/22 16:15 04/08/22 21:04 1 8 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry) 9 Count Total Uncert. Uncert. 10 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Thorium-228 0.0668 U 0.151 0.151 1.00 0.253 pCi/g 04/05/22 15:53 04/08/22 21:10 1 11 Thorium-230 0.290 0.252 0.253 1.00 0.288 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-232 0.137 U 0.150 0.150 1.00 0.198 pCi/g 04/05/22 15:53 04/08/22 21:10 1 12 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 58.0 30 - 110 04/05/22 15:53 04/08/22 21:10 1 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 9.64 0.655 1.04 1.00 0.0677 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-235/236 0.550 0.175 0.181 1.00 0.0629 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-238 9.47 0.648 1.03 1.00 0.0630 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 82.4 30 - 110 03/24/22 12:42 03/30/22 22:56 1 Method: GA-01-R - Radium-226 & Other Gamma Emitters (GS)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Cesium-137 -0.0168 U 0.0565 0.0565 0.200 0.0990 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Radium-226 0.109 U 0.0643 0.0656 1.00 0.344 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Thorium-232 0.0560 U 0.0878 0.0881 1.00 0.297 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-235 0.644 0.238 0.250 2.00 0.325 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-238 10.4 1.94 2.30 4.00 2.00 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Count Total Other Detected Uncert. Uncert.

Radionuclides Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Th-234 10.4 1.94 2.30 2.00 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Method: SR-03-RC - Total Beta Strontium (GFPC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium 0.0623 U 0.109 0.110 3.00 0.186 pCi/g 03/24/22 15:25 03/29/22 18:17 1 Eurofins St. Louis Page 12 of 28

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-76-H-COM-001 Lab Sample ID: 160-44890-1 Date Collected: 03/14/22 10:00 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 75.5 40 - 110 03/24/22 15:25 03/29/22 18:17 1 5

Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC) 6 Count Total Uncert. Uncert. 7 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Nickel-63 12.5 U 8.28 8.38 5.00 13.6 pCi/g 04/11/22 12:34 04/13/22 17:41 1 8 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Ni Carrier 98.6 40 - 110 04/11/22 12:34 04/13/22 17:41 1 9

Method: TC-02-RC - Technetium-99 (LSC) 10 Count Total Uncert. Uncert. 11 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Technetium-99 0.304 U 0.287 0.289 1.00 0.475 pCi/g 03/29/22 09:03 04/02/22 02:54 1 12 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Re 86.9 30 - 110 03/29/22 09:03 04/02/22 02:54 1 Client Sample ID: 4FR-76-V-COM-002 Lab Sample ID: 160-44890-2 Date Collected: 03/14/22 10:10 Matrix: Solid Date Received: 03/18/22 12:43 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Plutonium-238 0.0201 U 0.0788 0.0789 1.00 0.175 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Plutonium-239/240 -0.0161 U 0.0161 0.0161 1.00 0.131 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 85.1 30 - 110 04/05/22 16:15 04/08/22 21:04 1 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Thorium-228 -0.0130 U 0.162 0.162 1.00 0.330 pCi/g 04/05/22 15:53 04/10/22 18:46 1 Thorium-230 0.0549 U 0.175 0.175 1.00 0.278 pCi/g 04/05/22 15:53 04/10/22 18:46 1 Thorium-232 0.0796 U 0.127 0.127 1.00 0.217 pCi/g 04/05/22 15:53 04/10/22 18:46 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 32.8 30 - 110 04/05/22 15:53 04/10/22 18:46 1 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 0.838 0.195 0.207 1.00 0.0640 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-235/236 0.0394 U 0.0488 0.0489 1.00 0.0638 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-238 0.807 0.191 0.202 1.00 0.0511 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Eurofins St. Louis Page 13 of 28

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-76-V-COM-002 Lab Sample ID: 160-44890-2 Date Collected: 03/14/22 10:10 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 79.3 30 - 110 03/24/22 12:42 03/30/22 22:56 1 5

Method: GA-01-R - Radium-226 & Other Gamma Emitters (GS) 6 Count Total Uncert. Uncert. 7 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Cesium-137 0.0192 U 0.0345 0.0346 0.200 0.0584 pCi/g 03/23/22 16:33 03/31/22 18:28 1 8 Radium-226 0.205 U 0.0704 0.0735 1.00 0.262 pCi/g 03/23/22 16:33 03/31/22 18:28 1 Thorium-232 0.0409 U 0.153 0.154 1.00 0.177 pCi/g 03/23/22 16:33 03/31/22 18:28 1 9

Uranium-235 0.134 U 0.254 0.254 2.00 0.472 pCi/g 03/23/22 16:33 03/31/22 18:28 1 Uranium-238 0.545 0.203 0.212 4.00 0.266 pCi/g 03/23/22 16:33 03/31/22 18:28 1 10 Count Total Other Detected Uncert. Uncert. 11 Radionuclides Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Th-234 0.545 0.203 0.212 0.266 pCi/g 03/23/22 16:33 03/31/22 18:28 1 12 Method: SR-03-RC - Total Beta Strontium (GFPC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium 0.610 U 0.495 0.497 3.00 0.781 pCi/g 04/06/22 11:11 04/12/22 17:54 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 83.0 40 - 110 04/06/22 11:11 04/12/22 17:54 1 Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Nickel-63 10.7 U 9.38 9.45 5.00 15.5 pCi/g 04/11/22 12:34 04/13/22 18:47 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Ni Carrier 83.5 40 - 110 04/11/22 12:34 04/13/22 18:47 1 Method: TC-02-RC - Technetium-99 (LSC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Technetium-99 0.237 U 0.267 0.268 1.00 0.448 pCi/g 03/29/22 09:03 04/02/22 03:41 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Re 92.7 30 - 110 03/29/22 09:03 04/02/22 03:41 1 Client Sample ID: 4FR-168-H-COM-001 Lab Sample ID: 160-44890-3 Date Collected: 03/14/22 10:20 Matrix: Solid Date Received: 03/18/22 12:43 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Plutonium-238 1.91 0.421 0.450 1.00 0.216 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Eurofins St. Louis Page 14 of 28

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-168-H-COM-001 Lab Sample ID: 160-44890-3 Date Collected: 03/14/22 10:20 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry) (Continued)

Count Total 5 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Plutonium-239/240 0.0180 U 0.0450 0.0450 1.00 0.101 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac 7

Pu-242 (T) 83.0 30 - 110 04/05/22 16:15 04/08/22 21:04 1 8

Method: A-01-R - Isotopic Thorium (Alpha Spectrometry)

Count Total 9 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 10 Thorium-228 -0.0391 U 0.148 0.148 1.00 0.346 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-230 0.167 U 0.237 0.237 1.00 0.337 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-232 0.0417 U 0.103 0.103 1.00 0.206 11 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac 12 Thorium-229 56.2 30 - 110 04/05/22 15:53 04/08/22 21:10 1 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 0.265 0.107 0.110 1.00 0.0641 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-235/236 0.0188 U 0.0379 0.0379 1.00 0.0743 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-238 0.162 0.0840 0.0851 1.00 0.0596 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 86.2 30 - 110 03/24/22 12:42 03/30/22 22:56 1 Method: GA-01-R - Radium-226 & Other Gamma Emitters (GS)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Cesium-137 -0.00413 U 0.0631 0.0631 0.200 0.116 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Radium-226 -0.0328 U 0.108 0.108 1.00 0.221 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Thorium-232 0.145 U 0.276 0.276 1.00 0.332 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-235 0.176 U 0.220 0.221 2.00 0.593 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-238 0.829 U 0.776 0.783 4.00 1.81 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Count Total Other Detected Uncert. Uncert.

Radionuclides Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac K-40 1.03 0.555 0.568 0.499 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Method: SR-03-RC - Total Beta Strontium (GFPC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium 0.373 U 0.399 0.400 3.00 0.654 pCi/g 03/24/22 15:25 03/29/22 18:17 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 24.1 Q 40 - 110 03/24/22 15:25 03/29/22 18:17 1 Eurofins St. Louis Page 15 of 28

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-168-H-COM-001 Lab Sample ID: 160-44890-3 Date Collected: 03/14/22 10:20 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC)

Count Total 5 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Nickel-63 3.37 U 8.74 8.75 5.00 15.2 pCi/g 04/11/22 12:34 04/13/22 19:53 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac 7

Ni Carrier 89.4 40 - 110 04/11/22 12:34 04/13/22 19:53 1 8

Method: TC-02-RC - Technetium-99 (LSC)

Count Total 9 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 10 Technetium-99 0.0386 U 0.255 0.255 1.00 0.454 pCi/g 03/29/22 09:03 04/02/22 04:04 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac 11 Re 90.0 30 - 110 03/29/22 09:03 04/02/22 04:04 1 12 Client Sample ID: 4FR-168-V-COM-002 Lab Sample ID: 160-44890-4 Date Collected: 03/14/22 10:30 Matrix: Solid Date Received: 03/18/22 12:43 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Plutonium-238 0.514 0.218 0.222 1.00 0.154 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Plutonium-239/240 0.0787 U 0.0876 0.0879 1.00 0.113 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 85.1 30 - 110 04/05/22 16:15 04/08/22 21:04 1 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Thorium-228 -0.0416 U 0.145 0.145 1.00 0.358 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-230 0.183 U 0.256 0.257 1.00 0.362 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-232 0.00269 U 0.0901 0.0901 1.00 0.251 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 48.7 30 - 110 04/05/22 15:53 04/08/22 21:10 1 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 0.0953 0.0650 0.0655 1.00 0.0492 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-235/236 0.0135 U 0.0269 0.0269 1.00 0.0404 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-238 0.0843 0.0612 0.0616 1.00 0.0491 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 88.4 30 - 110 03/24/22 12:42 03/30/22 22:56 1 Eurofins St. Louis Page 16 of 28

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-168-V-COM-002 Lab Sample ID: 160-44890-4 Date Collected: 03/14/22 10:30 Matrix: Solid 3

Date Received: 03/18/22 12:43 4

Method: GA-01-R - Radium-226 & Other Gamma Emitters (GS)

Count Total 5 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Cesium-137 0.0183 U 0.0314 0.0314 0.200 0.0488 pCi/g 03/23/22 16:33 03/31/22 18:27 1 Radium-226 -0.119 U 0.122 0.123 1.00 0.405 pCi/g 03/23/22 16:33 03/31/22 18:27 1 7

Thorium-232 0.0670 U 0.131 0.131 1.00 0.163 pCi/g 03/23/22 16:33 03/31/22 18:27 1 Uranium-235 -0.0916 U 0.363 0.364 2.00 0.496 pCi/g 03/23/22 16:33 03/31/22 18:27 1 Uranium-238 -1.95 U 1.03 1.06 4.00 1.87 pCi/g 03/23/22 16:33 03/31/22 18:27 1 8

Count Total 9 Other Detected Uncert. Uncert.

Radionuclides Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Other Detected None pCi/g 03/23/22 16:33 03/31/22 18:27 1 10 Radionuclide 11 Method: SR-03-RC - Total Beta Strontium (GFPC)

Count Total 12 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium -0.188 U 0.362 0.363 3.00 0.706 pCi/g 04/06/22 11:11 04/12/22 17:55 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 87.2 40 - 110 04/06/22 11:11 04/12/22 17:55 1 Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Nickel-63 7.97 U 8.45 8.49 5.00 14.2 pCi/g 04/11/22 12:34 04/13/22 21:00 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Ni Carrier 93.7 40 - 110 04/11/22 12:34 04/13/22 21:00 1 Method: TC-02-RC - Technetium-99 (LSC)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Technetium-99 0.116 U 0.297 0.297 1.00 0.523 pCi/g 03/29/22 09:03 04/02/22 04:27 1 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Re 81.9 30 - 110 03/29/22 09:03 04/02/22 04:27 1 Eurofins St. Louis Page 17 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry) 3 Lab Sample ID: MB 160-558708/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 559375 Prep Batch: 558708 Count Total 5 MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Thorium-228 0.06362 U 0.129 0.129 1.00 0.209 pCi/g 04/05/22 15:53 04/08/22 21:10 1 Thorium-230 -0.03108 U 0.123 0.123 1.00 0.226 pCi/g 04/05/22 15:53 04/08/22 21:10 1 7

Thorium-232 -0.01563 U 0.0281 0.0282 1.00 0.133 pCi/g 04/05/22 15:53 04/08/22 21:10 1 MB MB 8 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 83.2 30 - 110 04/05/22 15:53 04/08/22 21:10 1 9 Lab Sample ID: LCS 160-558708/2-A Client Sample ID: Lab Control Sample 10 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559377 Prep Batch: 558708 Total 11 Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 12 Thorium-230 24.5 22.07 2.32 1.00 0.217 pCi/g 90 75 - 125 LCS LCS Tracer %Yield Qualifier Limits Thorium-229 88.1 30 - 110 Lab Sample ID: LCSD 160-558708/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA Analysis Batch: 559379 Prep Batch: 558708 Total Spike LCSD LCSD Uncert. %Rec RER Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits RER Limit Thorium-230 24.5 21.82 2.30 1.00 0.272 pCi/g 89 75 - 125 0.05 1 LCSD LCSD Tracer %Yield Qualifier Limits Thorium-229 85.4 30 - 110 Lab Sample ID: 160-44890-4 DU Client Sample ID: 4FR-168-V-COM-002 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559390 Prep Batch: 558708 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Thorium-228 -0.0416 U -0.04941 U 0.151 1.00 0.381 pCi/g 0.03 1 Thorium-230 0.183 U 0.1694 U 0.253 1.00 0.357 pCi/g 0.03 1 Thorium-232 0.00269 U -0.03778 U 0.0460 1.00 0.262 pCi/g 0.30 1 DU DU Tracer %Yield Qualifier Limits Thorium-229 46.8 30 - 110 Eurofins St. Louis Page 18 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry) 3 Lab Sample ID: MB 160-556904/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 557995 Prep Batch: 556904 Count Total 5 MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Uranium-233/234 0.02571 U 0.0556 0.0556 1.00 0.108 pCi/g 03/24/22 12:42 03/30/22 22:56 1 Uranium-235/236 0.04335 U 0.0579 0.0580 1.00 0.0858 pCi/g 03/24/22 12:42 03/30/22 22:56 1 7

Uranium-238 0.03228 U 0.0467 0.0468 1.00 0.0753 pCi/g 03/24/22 12:42 03/30/22 22:56 1 MB MB 8 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 68.4 30 - 110 03/24/22 12:42 03/30/22 22:56 1 9 Lab Sample ID: LCS 160-556904/2-A Client Sample ID: Lab Control Sample 10 Matrix: Solid Prep Type: Total/NA Analysis Batch: 557996 Prep Batch: 556904 Total 11 Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 12 Uranium-233/23 6.37 5.843 0.765 1.00 0.0896 pCi/g 92 75 - 125 4

Uranium-238 6.51 6.250 0.801 1.00 0.0667 pCi/g 96 75 - 125 LCS LCS Tracer %Yield Qualifier Limits Uranium-232 63.2 30 - 110 Lab Sample ID: 160-44890-1 DU Client Sample ID: 4FR-76-H-COM-001 Matrix: Solid Prep Type: Total/NA Analysis Batch: 557999 Prep Batch: 556904 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Uranium-233/23 9.64 9.637 1.04 1.00 0.0616 pCi/g 0 1 4

Uranium-235/23 0.550 0.3476 0.141 1.00 0.0613 pCi/g 0.63 1 6

Uranium-238 9.47 9.220 0.999 1.00 0.0561 pCi/g 0.12 1 DU DU Tracer %Yield Qualifier Limits Uranium-232 84.7 30 - 110 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Lab Sample ID: MB 160-558711/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA Analysis Batch: 559356 Prep Batch: 558711 Count Total MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Plutonium-238 -0.03789 U 0.0636 0.0637 1.00 0.227 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Plutonium-239/240 -0.01979 U 0.0198 0.0199 1.00 0.161 pCi/g 04/05/22 16:15 04/08/22 21:04 1 Eurofins St. Louis Page 19 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry) (Continued) 3 Lab Sample ID: MB 160-558711/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 559356 Prep Batch: 558711 MB MB 5 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 74.2 30 - 110 04/05/22 16:15 04/08/22 21:04 1 6 Lab Sample ID: LCS 160-558711/2-A Client Sample ID: Lab Control Sample 7 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559417 Prep Batch: 558711 8 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 9

Plutonium-238 10.3 9.207 1.15 1.00 0.141 pCi/g 89 75 - 125 Plutonium-239/2 10.6 9.896 1.22 1.00 0.0907 pCi/g 94 75 - 125 10 40 LCS LCS 11 Tracer %Yield Qualifier Limits Pu-242 (T) 92.0 30 - 110 12 Lab Sample ID: LCSD 160-558711/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA Analysis Batch: 559418 Prep Batch: 558711 Total Spike LCSD LCSD Uncert. %Rec RER Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits RER Limit Plutonium-238 10.3 10.36 1.29 1.00 0.140 pCi/g 100 75 - 125 0.47 1 Plutonium-239/2 10.6 11.50 1.39 1.00 0.112 pCi/g 109 75 - 125 0.62 1 40 LCSD LCSD Tracer %Yield Qualifier Limits Pu-242 (T) 81.9 30 - 110 Lab Sample ID: 160-44890-4 DU Client Sample ID: 4FR-168-V-COM-002 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559362 Prep Batch: 558711 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Plutonium-238 0.514 0.6272 0.239 1.00 0.171 pCi/g 0.25 1 Plutonium-239/2 0.0787 U 0.008702 U 0.0418 1.00 0.113 pCi/g 0.54 1 40 DU DU Tracer %Yield Qualifier Limits Pu-242 (T) 94.2 30 - 110 Eurofins St. Louis Page 20 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: GA-01-R - Radium-226 & Other Gamma Emitters (GS) 3 Lab Sample ID: MB 160-556862/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 558050 Prep Batch: 556862 Count Total 5 MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Cesium-137 -0.005328 U 0.0605 0.0605 0.200 0.108 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Radium-226 -0.05708 U 0.0736 0.0738 1.00 0.234 pCi/g 03/23/22 16:33 03/31/22 17:28 1 7

Thorium-232 -0.05799 U 0.146 0.146 1.00 0.242 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-235 0.03553 U 0.138 0.138 2.00 0.506 pCi/g 03/23/22 16:33 03/31/22 17:28 1 Uranium-238 0.08349 U 0.184 0.184 4.00 1.14 pCi/g 03/23/22 16:33 03/31/22 17:28 1 8

Count Total Other Detected MB MB Uncert. Uncert.

9 Radionuclides Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Other Detected None pCi/g 03/23/22 16:33 03/31/22 17:28 1 10 Radionuclide 11 Lab Sample ID: LCS 160-556862/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA 12 Analysis Batch: 558051 Prep Batch: 556862 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits Americium-241 96.2 95.98 10.0 0.876 pCi/g 100 75 - 125 Cesium-137 25.9 24.16 2.57 0.200 0.175 pCi/g 93 75 - 125 Cobalt-60 7.98 7.378 0.782 0.0898 pCi/g 92 75 - 125 Lab Sample ID: 160-44890-3 DU Client Sample ID: 4FR-168-H-COM-001 Matrix: Solid Prep Type: Total/NA Analysis Batch: 558050 Prep Batch: 556862 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Cesium-137 -0.00413 U 0.02177 U 0.0438 0.200 0.0749 pCi/g 0.24 1 Radium-226 -0.0328 U 0.1257 0.0794 1.00 0.0861 pCi/g 0.85 1 Thorium-232 0.145 U 0.06393 U 0.166 1.00 0.207 pCi/g 0.18 1 Uranium-235 0.176 U 0.06413 U 0.124 2.00 0.664 pCi/g 0.32 1 Uranium-238 0.829 U 0.03133 U 0.621 4.00 1.06 pCi/g 0.57 1 Total Other Detected Sample Sample DU DU Uncert. RER Radionuclides Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit K-40 1.03 0.9904 0.528 0.624 pCi/g 0.03 1 Method: SR-03-RC - Total Beta Strontium (GFPC)

Lab Sample ID: MB 160-556937/7-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA Analysis Batch: 557637 Prep Batch: 556937 Count Total MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium 0.06714 U 0.123 0.123 3.00 0.208 pCi/g 03/24/22 15:25 03/29/22 18:22 1 Eurofins St. Louis Page 21 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: SR-03-RC - Total Beta Strontium (GFPC) (Continued) 3 Lab Sample ID: MB 160-556937/7-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 557637 Prep Batch: 556937 MB MB 5 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 83.5 40 - 110 03/24/22 15:25 03/29/22 18:22 1 6 Lab Sample ID: LCS 160-556937/1-A Client Sample ID: Lab Control Sample 7 Matrix: Solid Prep Type: Total/NA Analysis Batch: 557632 Prep Batch: 556937 8 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 9

Total Beta 7.52 5.953 0.558 3.00 0.191 pCi/g 79 75 - 125 Strontium 10 LCS LCS Carrier %Yield Qualifier Limits 11 Sr Carrier 84.8 40 - 110 12 Lab Sample ID: 160-44890-1 DU Client Sample ID: 4FR-76-H-COM-001 Matrix: Solid Prep Type: Total/NA Analysis Batch: 557632 Prep Batch: 556937 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Total Beta 0.0623 U 0.2601 0.147 3.00 0.222 pCi/g 0.77 1 Strontium DU DU Carrier %Yield Qualifier Limits Sr Carrier 82.6 40 - 110 Lab Sample ID: MB 160-558743/5-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA Analysis Batch: 559824 Prep Batch: 558743 Count Total MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Total Beta Strontium 0.2040 U 0.452 0.452 3.00 0.780 pCi/g 04/06/22 11:11 04/12/22 17:55 1 MB MB Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Sr Carrier 81.9 40 - 110 04/06/22 11:11 04/12/22 17:55 1 Lab Sample ID: LCS 160-558743/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA Analysis Batch: 559824 Prep Batch: 558743 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits Total Beta 30.1 24.72 2.44 3.00 0.965 pCi/g 82 75 - 125 Strontium LCS LCS Carrier %Yield Qualifier Limits Sr Carrier 75.6 40 - 110 Eurofins St. Louis Page 22 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: SR-03-RC - Total Beta Strontium (GFPC) 3 Lab Sample ID: 160-44890-2 DU Client Sample ID: 4FR-76-V-COM-002 Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 559824 Prep Batch: 558743 Total 5 Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit 6 Total Beta 0.610 U 0.5381 U 0.527 3.00 0.849 pCi/g 0.07 1 Strontium 7

DU DU Carrier %Yield Qualifier Limits 8 Sr Carrier 76.6 40 - 110 Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC) 9 Lab Sample ID: MB 160-559632/1-A Client Sample ID: Method Blank 10 Matrix: Solid Prep Type: Total/NA Analysis Batch: 560240 Prep Batch: 559632 11 Count Total MB MB Uncert. Uncert. 12 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Nickel-63 2.805 U 2.27 2.28 5.00 3.77 pCi/g 04/11/22 12:34 04/13/22 14:22 1 MB MB Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Ni Carrier 72.1 40 - 110 04/11/22 12:34 04/13/22 14:22 1 Lab Sample ID: LCS 160-559632/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA Analysis Batch: 560240 Prep Batch: 559632 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits Nickel-63 38.0 43.75 6.36 5.00 4.81 pCi/g 115 75 - 125 LCS LCS Carrier %Yield Qualifier Limits Ni Carrier 57.1 40 - 110 Lab Sample ID: LCSD 160-559632/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA Analysis Batch: 560240 Prep Batch: 559632 Total Spike LCSD LCSD Uncert. %Rec RER Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits RER Limit Nickel-63 38.0 40.30 5.48 5.00 3.55 pCi/g 106 75 - 125 0.29 1 LCSD LCSD Carrier %Yield Qualifier Limits Ni Carrier 76.1 40 - 110 Eurofins St. Louis Page 23 of 28

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: TC-02-RC - Technetium-99 (LSC) 3 Lab Sample ID: MB 160-557628/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 559080 Prep Batch: 557628 Count Total 5 MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Technetium-99 0.02846 U 0.246 0.246 1.00 0.440 pCi/g 03/29/22 09:03 04/02/22 02:07 1 MB MB 7 Carrier %Yield Qualifier Limits Prepared Analyzed Dil Fac Re 94.4 30 - 110 03/29/22 09:03 04/02/22 02:07 1 8 Lab Sample ID: LCS 160-557628/2-A Client Sample ID: Lab Control Sample 9 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559080 Prep Batch: 557628 10 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 11 Technetium-99 10.3 10.33 1.21 1.00 0.441 pCi/g 100 75 - 125 12 LCS LCS Carrier %Yield Qualifier Limits Re 92.6 30 - 110 Lab Sample ID: 160-44890-1 DU Client Sample ID: 4FR-76-H-COM-001 Matrix: Solid Prep Type: Total/NA Analysis Batch: 559080 Prep Batch: 557628 Total Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit Technetium-99 0.304 U 0.1840 U 0.268 1.00 0.456 pCi/g 0.21 1 DU DU Carrier %Yield Qualifier Limits Re 90.0 30 - 110 Eurofins St. Louis Page 24 of 28

QC Association Summary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Rad 3

Leach Batch: 556269 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 4

160-44890-1 4FR-76-H-COM-001 Total/NA Solid Dry and Grind 160-44890-2 4FR-76-V-COM-002 Total/NA Solid Dry and Grind 5 160-44890-3 4FR-168-H-COM-001 Total/NA Solid Dry and Grind 160-44890-4 4FR-168-V-COM-002 Total/NA Solid Dry and Grind 6 160-44890-1 DU 4FR-76-H-COM-001 Total/NA Solid Dry and Grind 160-44890-2 DU 4FR-76-V-COM-002 Total/NA Solid Dry and Grind 7 160-44890-3 DU 4FR-168-H-COM-001 Total/NA Solid Dry and Grind 160-44890-4 DU 4FR-168-V-COM-002 Total/NA Solid Dry and Grind 8 Prep Batch: 556862 9

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid Fill Geo-7 556269 160-44890-2 4FR-76-V-COM-002 Total/NA Solid Fill Geo-7 556269 10 160-44890-3 4FR-168-H-COM-001 Total/NA Solid Fill Geo-7 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid Fill Geo-7 556269 11 MB 160-556862/1-A Method Blank Total/NA Solid Fill Geo-7 LCS 160-556862/2-A Lab Control Sample Total/NA Solid Fill Geo-7 12 160-44890-3 DU 4FR-168-H-COM-001 Total/NA Solid Fill Geo-7 556269 Prep Batch: 556904 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid ExtChrom 556269 160-44890-2 4FR-76-V-COM-002 Total/NA Solid ExtChrom 556269 160-44890-3 4FR-168-H-COM-001 Total/NA Solid ExtChrom 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid ExtChrom 556269 MB 160-556904/1-A Method Blank Total/NA Solid ExtChrom LCS 160-556904/2-A Lab Control Sample Total/NA Solid ExtChrom 160-44890-1 DU 4FR-76-H-COM-001 Total/NA Solid ExtChrom 556269 Prep Batch: 556937 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid DPS-0 556269 160-44890-3 4FR-168-H-COM-001 Total/NA Solid DPS-0 556269 MB 160-556937/7-A Method Blank Total/NA Solid DPS-0 LCS 160-556937/1-A Lab Control Sample Total/NA Solid DPS-0 160-44890-1 DU 4FR-76-H-COM-001 Total/NA Solid DPS-0 556269 Prep Batch: 557628 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-2 4FR-76-V-COM-002 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-3 4FR-168-H-COM-001 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid Ext_Chrom_LSC 556269 MB 160-557628/1-A Method Blank Total/NA Solid Ext_Chrom_LSC LCS 160-557628/2-A Lab Control Sample Total/NA Solid Ext_Chrom_LSC 160-44890-1 DU 4FR-76-H-COM-001 Total/NA Solid Ext_Chrom_LSC 556269 Prep Batch: 558708 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid ExtChrom 556269 160-44890-2 4FR-76-V-COM-002 Total/NA Solid ExtChrom 556269 Eurofins St. Louis Page 25 of 28

QC Association Summary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Rad (Continued) 3 Prep Batch: 558708 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 4

160-44890-3 4FR-168-H-COM-001 Total/NA Solid ExtChrom 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid ExtChrom 556269 5 MB 160-558708/1-A Method Blank Total/NA Solid ExtChrom LCS 160-558708/2-A Lab Control Sample Total/NA Solid ExtChrom 6 LCSD 160-558708/3-A Lab Control Sample Dup Total/NA Solid ExtChrom 160-44890-4 DU 4FR-168-V-COM-002 Total/NA Solid ExtChrom 556269 7 Prep Batch: 558711 8

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid ExtChrom 556269 9

160-44890-2 4FR-76-V-COM-002 Total/NA Solid ExtChrom 556269 160-44890-3 4FR-168-H-COM-001 Total/NA Solid ExtChrom 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid ExtChrom 556269 10 MB 160-558711/1-A Method Blank Total/NA Solid ExtChrom LCS 160-558711/2-A Lab Control Sample Total/NA Solid ExtChrom 11 LCSD 160-558711/3-A Lab Control Sample Dup Total/NA Solid ExtChrom 160-44890-4 DU 4FR-168-V-COM-002 Total/NA Solid ExtChrom 556269 12 Prep Batch: 558743 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-2 4FR-76-V-COM-002 Total/NA Solid DPS-0 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid DPS-0 556269 MB 160-558743/5-A Method Blank Total/NA Solid DPS-0 LCS 160-558743/1-A Lab Control Sample Total/NA Solid DPS-0 160-44890-2 DU 4FR-76-V-COM-002 Total/NA Solid DPS-0 556269 Prep Batch: 559632 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44890-1 4FR-76-H-COM-001 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-2 4FR-76-V-COM-002 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-3 4FR-168-H-COM-001 Total/NA Solid Ext_Chrom_LSC 556269 160-44890-4 4FR-168-V-COM-002 Total/NA Solid Ext_Chrom_LSC 556269 MB 160-559632/1-A Method Blank Total/NA Solid Ext_Chrom_LSC LCS 160-559632/2-A Lab Control Sample Total/NA Solid Ext_Chrom_LSC LCSD 160-559632/3-A Lab Control Sample Dup Total/NA Solid Ext_Chrom_LSC Eurofins St. Louis Page 26 of 28

Tracer/Carrier Summary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Plutonium (Alpha Spectrometry)

Matrix: Solid Prep Type: Total/NA 3

Percent Yield (Acceptance Limits) 4 Pu-242 (T)

Lab Sample ID Client Sample ID (30-110) 5 160-44890-1 4FR-76-H-COM-001 95.0 160-44890-2 4FR-76-V-COM-002 85.1 6 160-44890-3 4FR-168-H-COM-001 83.0 160-44890-4 4FR-168-V-COM-002 85.1 7

160-44890-4 DU 4FR-168-V-COM-002 94.2 LCS 160-558711/2-A Lab Control Sample 92.0 LCSD 160-558711/3-A Lab Control Sample Dup 81.9 8

MB 160-558711/1-A Method Blank 74.2 9

Tracer/Carrier Legend Pu-242 (T) = Pu-242 (T) 10 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry)

Matrix: Solid Prep Type: Total/NA 11 Percent Yield (Acceptance Limits) 12 Th-229 Lab Sample ID Client Sample ID (30-110) 160-44890-1 4FR-76-H-COM-001 58.0 160-44890-2 4FR-76-V-COM-002 32.8 160-44890-3 4FR-168-H-COM-001 56.2 160-44890-4 4FR-168-V-COM-002 48.7 160-44890-4 DU 4FR-168-V-COM-002 46.8 LCS 160-558708/2-A Lab Control Sample 88.1 LCSD 160-558708/3-A Lab Control Sample Dup 85.4 MB 160-558708/1-A Method Blank 83.2 Tracer/Carrier Legend Th-229 = Thorium-229 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Matrix: Solid Prep Type: Total/NA Percent Yield (Acceptance Limits)

U-232 Lab Sample ID Client Sample ID (30-110) 160-44890-1 4FR-76-H-COM-001 82.4 160-44890-1 DU 4FR-76-H-COM-001 84.7 160-44890-2 4FR-76-V-COM-002 79.3 160-44890-3 4FR-168-H-COM-001 86.2 160-44890-4 4FR-168-V-COM-002 88.4 LCS 160-556904/2-A Lab Control Sample 63.2 MB 160-556904/1-A Method Blank 68.4 Tracer/Carrier Legend U-232 = Uranium-232 Eurofins St. Louis Page 27 of 28

Tracer/Carrier Summary 1 Client: Cabrera Services Job ID: 160-44890-1 Project/Site: 201 Varick Street, NYC 2 Method: SR-03-RC - Total Beta Strontium (GFPC)

Matrix: Solid Prep Type: Total/NA 3 Percent Yield (Acceptance Limits)

Sr 4

Lab Sample ID Client Sample ID (40-110) 160-44890-1 4FR-76-H-COM-001 75.5 5

160-44890-1 DU 4FR-76-H-COM-001 82.6 160-44890-2 4FR-76-V-COM-002 83.0 6 160-44890-2 DU 4FR-76-V-COM-002 76.6 160-44890-3 4FR-168-H-COM-001 24.1 Q 7 160-44890-4 4FR-168-V-COM-002 87.2 LCS 160-556937/1-A Lab Control Sample 84.8 8 LCS 160-558743/1-A Lab Control Sample 75.6 MB 160-556937/7-A Method Blank 83.5 9 MB 160-558743/5-A Method Blank 81.9 Tracer/Carrier Legend 10 Sr = Sr Carrier 11 Method: ST-RC-0055 - Nickel-59/Nickel-63 (LSC)

Matrix: Solid Prep Type: Total/NA 12 Percent Yield (Acceptance Limits)

Ni Lab Sample ID Client Sample ID (40-110) 160-44890-1 4FR-76-H-COM-001 98.6 160-44890-2 4FR-76-V-COM-002 83.5 160-44890-3 4FR-168-H-COM-001 89.4 160-44890-4 4FR-168-V-COM-002 93.7 LCS 160-559632/2-A Lab Control Sample 57.1 LCSD 160-559632/3-A Lab Control Sample Dup 76.1 MB 160-559632/1-A Method Blank 72.1 Tracer/Carrier Legend Ni = Ni Carrier Method: TC-02-RC - Technetium-99 (LSC)

Matrix: Solid Prep Type: Total/NA Percent Yield (Acceptance Limits)

Re Lab Sample ID Client Sample ID (30-110) 160-44890-1 4FR-76-H-COM-001 86.9 160-44890-1 DU 4FR-76-H-COM-001 90.0 160-44890-2 4FR-76-V-COM-002 92.7 160-44890-3 4FR-168-H-COM-001 90.0 160-44890-4 4FR-168-V-COM-002 81.9 LCS 160-557628/2-A Lab Control Sample 92.6 MB 160-557628/1-A Method Blank 94.4 Tracer/Carrier Legend Re = Re Eurofins St. Louis Page 28 of 28

1 2

3 4

5 ANALYTICAL REPORT 6

Eurofins St. Louis 13715 Rider Trail North 7 Earth City, MO 63045 Tel: (314)298-8566 8 Laboratory Job ID: 160-44924-1 9 Client Project/Site: 201 Varick Street, NYC For:

10 Cabrera Services 11 50 Founders Plaza Suite 207 12 East Hartford, Connecticut 06108 Attn: Mike Plonski Authorized for release by:

4/20/2022 2:20:03 PM Ivan Vania, Project Manager II (314)298-8566 Ivan.Vania@et.eurofinsus.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

Client: Cabrera Services Laboratory Job ID: 160-44924-1 1 Project/Site: 201 Varick Street, NYC 2

Table of Contents 3 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9

8 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 10 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Tracer Carrier Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 11 12 Page 2 of 15

Case Narrative 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44924-1 3 Laboratory: Eurofins St. Louis 4

Narrative 5

CASE NARRATIVE 6

Client: Cabrera Services 7 Project: 201 Varick Street, NYC 8 Report Number: 160-44924-1 9

10 With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of 11 the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required. 12 Eurofins TestAmerica, St. Louis attests to the validity of the laboratory data generated by Eurofins TestAmerica facilities reported herein. All analyses performed by Eurofins TestAmerica facilities were done using established laboratory SOPs that incorporate QA/QC procedures described in the application methods. Eurofins TestAmericas operations groups have reviewed the data for compliance with the laboratory QA/QC plan, and data have been found to be compliant with laboratory protocols unless otherwise noted below.

The test results in this report meet all NELAP requirements for parameters for which accreditation is required or available. Any exceptions to NELAP requirements are noted in this report. Pursuant to NELAP, this report may not be reproduced, except in full, without the written approval of the laboratory.

Calculations are performed before rounding to avoid round-off errors in calculated results.

All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below.

All solid sample results for Chemistry analyses are reported on an ""as received"" basis unless otherwise indicated by the presence of a

% solids value in the method header. All soil/sediment sample results for radiochemistry analyses are based upon sample as dried and disaggregated with the exception of tritium, carbon-14, and iodine-129 by gamma spectroscopy unless requested as wet weight by the client.

Any minimum detectable concentration (MDC), critical value (DLC), or Safe Drinking Water Act detection limit (SDWA DL) is sample-specific unless otherwise stated elsewhere in this narrative.

Radiochemistry sample results are reported with the count date/time applied as the Activity Reference Date.

Reference the chain of custody and condition upon receipt report for any variations on receipt conditions and temperature of samples on receipt.

Manual Integrations were performed only when necessary and are in compliance with the laboratorys standard operating procedure.

Detailed information can be found in the raw data section of the level IV report.

This laboratory report is confidential and is intended for the sole use of Eurofins TestAmerica and its client.

RECEIPT The sample was received on 3/24/2022 8:10 AM. Unless otherwise noted below, the sample arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 16.4º C.

ISOTOPIC PLUTONIUM (ALPHA SPECTROMETRY)

Eurofins St. Louis Page 3 of 15

Case Narrative 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Job ID: 160-44924-1 (Continued) 3 Laboratory: Eurofins St. Louis (Continued) 4 Sample 4FR-50-V-COM-001 (160-44924-1) was analyzed for Isotopic Plutonium (Alpha Spectrometry) in accordance with A-01-R. The samples were leached on 03/28/2022, prepared on 04/11/2022 and analyzed on 04/13/2022.

5 Preparation Batch 160-559794:

The sample was prepared at a reduced aliquot due to matrix interference. A laboratory control sample/ laboratory control sample duplicate 6 (LCS/LCSD) were prepared to demonstrate batch precision: 4FR-50-V-COM-001 (160-44924-1).

7 No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

8 ISOTOPIC THORIUM (ALPHA SPECTROMETRY)

Sample 4FR-50-V-COM-001 (160-44924-1) was analyzed for Isotopic Thorium (Alpha Spectrometry) in accordance with DOE A01R_Th.

The samples were leached on 03/28/2022, prepared on 04/11/2022 and analyzed on 04/18/2022.

9 Preparation Batch 160-559784: 10 A blank population correction was applied to account for contributions to the analyte count rate from sources other than the sample itself.

Interferences may include, but are not limited to, impurities in reagents, tracers, or glassware, or effects due to the measurement process 11 (such as tailing): 4FR-50-V-COM-001 (160-44924-1), (LCS 160-559784/2-A), (LCSD 160-559784/3-A), and (MB 160-559784/1-A).

The sample was prepared at a reduced aliquot due to matrix interferences. A laboratory control sample/ laboratory control sample 12 duplicate (LCS/LCSD) were prepared to demonstrate batch precision: 4FR-50-V-COM-001 (160-44924-1).

Thorium-230 was detected in method blank MB 160-559784/1-A at a level that was above the method detection limit but below the reporting limit. The value should be considered an estimate.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

ISOTOPIC URANIUM (ALPHA SPECTROMETRY)

Sample 4FR-50-V-COM-001 (160-44924-1) was analyzed for Isotopic Uranium (Alpha Spectrometry) in accordance with DOE. The samples were leached on 03/28/2022, prepared on 04/04/2022 and analyzed on 04/08/2022.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

Eurofins St. Louis Page 4 of 15

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9 10 11 12 Page 5 of 15

1 Login Sample Receipt Checklist 2

Client: Cabrera Services Job Number: 160-44924-1 3 Login Number: 44924 List Source: Eurofins St. Louis 4

List Number: 1 Creator: Johnson, Autumn R 5

Question Answer Comment 6 Radioactivity wasn't checked or is </= background as measured by a survey True meter. 7 The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True 8 The cooler or samples do not appear to have been compromised or True tampered with. 9 Samples were received on ice. N/A Cooler Temperature is acceptable. True 10 Cooler Temperature is recorded. True COC is present. True 11 COC is filled out in ink and legible. True COC is filled out with all pertinent information. True 12 Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)

Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True

<6mm (1/4").

Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins St. Louis Page 6 of 15

Definitions/Glossary 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Qualifiers 3

Rad Qualifier Qualifier Description 4 U Undetected at the Limit of Detection.

Glossary 5 Abbreviation These commonly used abbreviations may or may not be present in this report.

Listed under the "D" column to designate that the result is reported on a dry weight basis 6

%R Percent Recovery CFL Contains Free Liquid 7

CFU Colony Forming Unit CNF Contains No Free Liquid 8 DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor 9 DL Detection Limit (DoD/DOE)

DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample 10 DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin) 11 LOD Limit of Detection (DoD/DOE)

LOQ Limit of Quantitation (DoD/DOE) 12 MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit ML Minimum Level (Dioxin)

MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown)

NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

TNTC Too Numerous To Count Eurofins St. Louis Page 7 of 15

Method Summary 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 3

Method Method Description Protocol Laboratory A-01-R Isotopic Plutonium and Neptunium (Alpha Spectrometry) DOE TAL SL A-01-R Isotopic Thorium (Alpha Spectrometry) DOE TAL SL 4

A-01-R Isotopic Uranium (Alpha Spectrometry) DOE TAL SL Dry and Grind Preparation, Dry and Grind None TAL SL 5 ExtChrom Preparation, Extraction Chromatography Resin Actinide Separation None TAL SL 6

Protocol

References:

DOE = U.S. Department of Energy 7 None = None 8

Laboratory

References:

TAL SL = Eurofins St. Louis, 13715 Rider Trail North, Earth City, MO 63045, TEL (314)298-8566 9 10 11 12 Eurofins St. Louis Page 8 of 15

Sample Summary Client: Cabrera Services Job ID: 160-44924-1 1

Project/Site: 201 Varick Street, NYC 2

Lab Sample ID Client Sample ID Matrix Collected Received 3 160-44924-1 4FR-50-V-COM-001 Solid 03/19/22 11:00 03/24/22 08:10 4

5 6

7 8

9 10 11 12 Page 9 of 15 Eurofins St. Louis

Client Sample Results 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Client Sample ID: 4FR-50-V-COM-001 Lab Sample ID: 160-44924-1 Date Collected: 03/19/22 11:00 Matrix: Solid 3

Date Received: 03/24/22 08:10 4

Method: A-01-R - Isotopic Plutonium and Neptunium (Alpha Spectrometry)

Count Total 5 Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Plutonium-238 0.00520 U 0.0444 0.0444 1.00 0.127 pCi/g 04/11/22 15:56 04/13/22 18:05 1 Plutonium-239/240 0.0390 U 0.0745 0.0746 1.00 0.142 pCi/g 04/11/22 15:56 04/13/22 18:05 1 7

Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 86.7 30 - 110 04/11/22 15:56 04/13/22 18:05 1 8 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry) 9 Count Total Uncert. Uncert. 10 Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Thorium-228 -0.130 U 0.165 0.165 1.00 0.525 pCi/g 04/11/22 14:58 04/18/22 12:59 1 11 Thorium-230 0.274 U 0.330 0.331 1.00 0.436 pCi/g 04/11/22 14:58 04/18/22 12:59 1 Thorium-232 0.260 U 0.252 0.253 1.00 0.274 pCi/g 04/11/22 14:58 04/18/22 12:59 1 12 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 33.7 30 - 110 04/11/22 14:58 04/18/22 12:59 1 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Count Total Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 0.0681 0.0568 0.0571 1.00 0.0674 pCi/g 04/04/22 15:19 04/08/22 21:05 1 Uranium-235/236 0.0100 U 0.0251 0.0251 1.00 0.0561 pCi/g 04/04/22 15:19 04/08/22 21:05 1 Uranium-238 0.0556 0.0487 0.0489 1.00 0.0514 pCi/g 04/04/22 15:19 04/08/22 21:05 1 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 105 30 - 110 04/04/22 15:19 04/08/22 21:05 1 Eurofins St. Louis Page 10 of 15

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry) 3 Lab Sample ID: MB 160-559784/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 560560 Prep Batch: 559784 Count Total 5 MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac 6 Thorium-228 -0.03529 U 0.0829 0.0830 1.00 0.180 pCi/g 04/11/22 14:58 04/15/22 20:44 1 Thorium-230 0.3833 0.191 0.194 1.00 0.183 pCi/g 04/11/22 14:58 04/15/22 20:44 1 7

Thorium-232 0.03411 U 0.0665 0.0666 1.00 0.118 pCi/g 04/11/22 14:58 04/15/22 20:44 1 MB MB 8 Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Thorium-229 64.6 30 - 110 04/11/22 14:58 04/15/22 20:44 1 9 Lab Sample ID: LCS 160-559784/2-A Client Sample ID: Lab Control Sample 10 Matrix: Solid Prep Type: Total/NA Analysis Batch: 560562 Prep Batch: 559784 Total 11 Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 12 Thorium-230 24.5 21.36 2.22 1.00 0.214 pCi/g 87 75 - 125 LCS LCS Tracer %Yield Qualifier Limits Thorium-229 91.1 30 - 110 Lab Sample ID: LCSD 160-559784/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA Analysis Batch: 560564 Prep Batch: 559784 Total Spike LCSD LCSD Uncert. %Rec RER Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits RER Limit Thorium-230 24.5 24.36 2.54 1.00 0.265 pCi/g 99 75 - 125 0.63 1 LCSD LCSD Tracer %Yield Qualifier Limits Thorium-229 80.8 30 - 110 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Lab Sample ID: MB 160-558497/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA Analysis Batch: 559580 Prep Batch: 558497 Count Total MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Uranium-233/234 0.02450 U 0.0354 0.0355 1.00 0.0572 pCi/g 04/04/22 15:19 04/10/22 18:44 1 Uranium-235/236 0.0000 U 0.00469 0.00469 1.00 0.0375 pCi/g 04/04/22 15:19 04/10/22 18:44 1 Uranium-238 0.006270 U 0.0208 0.0208 1.00 0.0521 pCi/g 04/04/22 15:19 04/10/22 18:44 1 MB MB Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Uranium-232 93.0 30 - 110 04/04/22 15:19 04/10/22 18:44 1 Eurofins St. Louis Page 11 of 15

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry) (Continued) 3 Lab Sample ID: LCS 160-558497/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 559423 Prep Batch: 558497 Total 5 Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits 6 Uranium-233/23 6.37 6.328 0.742 1.00 0.0686 pCi/g 99 75 - 125 4

Uranium-238 6.51 6.492 0.756 1.00 0.0482 pCi/g 100 75 - 125 7

LCS LCS 8 Tracer %Yield Qualifier Limits Uranium-232 103 30 - 110 9

Lab Sample ID: 160-44924-1 DU Client Sample ID: 4FR-50-V-COM-001 Matrix: Solid Prep Type: Total/NA 10 Analysis Batch: 559426 Prep Batch: 558497 Total 11 Sample Sample DU DU Uncert. RER Analyte Result Qual Result Qual (2+/-) LOQ MDC Unit RER Limit 12 Uranium-233/23 0.0681 0.07419 0.0581 1.00 0.0496 pCi/g 0.05 1 4

Uranium-235/23 0.0100 U 0.01355 U 0.0271 1.00 0.0407 pCi/g 0.07 1 6

Uranium-238 0.0556 0.1155 0.0730 1.00 0.0565 pCi/g 0.49 1 DU DU Tracer %Yield Qualifier Limits Uranium-232 81.5 30 - 110 Method: A-01-R - Isotopic Plutonium and Neptunium (Alpha Spectrometry)

Lab Sample ID: MB 160-559794/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA Analysis Batch: 560132 Prep Batch: 559794 Count Total MB MB Uncert. Uncert.

Analyte Result Qualifier (2+/-) (2+/-) LOQ MDC Unit Prepared Analyzed Dil Fac Plutonium-238 0.03979 U 0.0629 0.0630 1.00 0.110 pCi/g 04/11/22 15:56 04/13/22 18:05 1 Plutonium-239/240 0.01695 U 0.0397 0.0397 1.00 0.0828 pCi/g 04/11/22 15:56 04/13/22 18:05 1 MB MB Tracer %Yield Qualifier Limits Prepared Analyzed Dil Fac Pu-242 (T) 68.2 30 - 110 04/11/22 15:56 04/13/22 18:05 1 Lab Sample ID: LCS 160-559794/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA Analysis Batch: 560140 Prep Batch: 559794 Total Spike LCS LCS Uncert. %Rec Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits Plutonium-238 10.4 11.45 1.41 1.00 0.224 pCi/g 110 75 - 125 Plutonium-239/2 10.7 11.08 1.37 1.00 0.104 pCi/g 104 75 - 125 40 Eurofins St. Louis Page 12 of 15

QC Sample Results 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Plutonium and Neptunium (Alpha Spectrometry) (Continued) 3 Lab Sample ID: LCS 160-559794/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA 4 Analysis Batch: 560140 Prep Batch: 559794 LCS LCS 5 Tracer %Yield Qualifier Limits Pu-242 (T) 81.6 30 - 110 6 Lab Sample ID: LCSD 160-559794/3-A Client Sample ID: Lab Control Sample Dup 7 Matrix: Solid Prep Type: Total/NA Analysis Batch: 560062 Prep Batch: 559794 8 Total Spike LCSD LCSD Uncert. %Rec RER Analyte Added Result Qual (2+/-) LOQ MDC Unit %Rec Limits RER Limit 9

Plutonium-238 10.4 11.18 1.39 1.00 0.165 pCi/g 107 75 - 125 0.1 1 Plutonium-239/2 10.6 10.98 1.37 1.00 0.120 pCi/g 103 75 - 125 0.04 1 10 40 LCSD LCSD 11 Tracer %Yield Qualifier Limits Pu-242 (T) 80.1 30 - 110 12 Eurofins St. Louis Page 13 of 15

QC Association Summary 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Rad 3

Leach Batch: 557406 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 4

160-44924-1 4FR-50-V-COM-001 Total/NA Solid Dry and Grind 160-44924-1 DU 4FR-50-V-COM-001 Total/NA Solid Dry and Grind 5 Prep Batch: 558497 6 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44924-1 4FR-50-V-COM-001 Total/NA Solid ExtChrom 557406 7 MB 160-558497/1-A Method Blank Total/NA Solid ExtChrom LCS 160-558497/2-A Lab Control Sample Total/NA Solid ExtChrom 8 160-44924-1 DU 4FR-50-V-COM-001 Total/NA Solid ExtChrom 557406 Prep Batch: 559784 9 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44924-1 4FR-50-V-COM-001 Total/NA Solid ExtChrom 557406 10 MB 160-559784/1-A Method Blank Total/NA Solid ExtChrom LCS 160-559784/2-A Lab Control Sample Total/NA Solid ExtChrom 11 LCSD 160-559784/3-A Lab Control Sample Dup Total/NA Solid ExtChrom 12 Prep Batch: 559794 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 160-44924-1 4FR-50-V-COM-001 Total/NA Solid ExtChrom 557406 MB 160-559794/1-A Method Blank Total/NA Solid ExtChrom LCS 160-559794/2-A Lab Control Sample Total/NA Solid ExtChrom LCSD 160-559794/3-A Lab Control Sample Dup Total/NA Solid ExtChrom Eurofins St. Louis Page 14 of 15

Tracer/Carrier Summary 1 Client: Cabrera Services Job ID: 160-44924-1 Project/Site: 201 Varick Street, NYC 2 Method: A-01-R - Isotopic Plutonium and Neptunium (Alpha Spectrometry)

Matrix: Solid Prep Type: Total/NA 3

Percent Yield (Acceptance Limits) 4 Pu-242 (T)

Lab Sample ID Client Sample ID (30-110) 5 160-44924-1 4FR-50-V-COM-001 86.7 LCS 160-559794/2-A Lab Control Sample 81.6 6 LCSD 160-559794/3-A Lab Control Sample Dup 80.1 MB 160-559794/1-A Method Blank 68.2 7

Tracer/Carrier Legend Pu-242 (T) = Pu-242 (T) 8 Method: A-01-R - Isotopic Thorium (Alpha Spectrometry) 9 Matrix: Solid Prep Type: Total/NA Percent Yield (Acceptance Limits) 10 Th-229 Lab Sample ID Client Sample ID (30-110) 11 160-44924-1 4FR-50-V-COM-001 33.7 LCS 160-559784/2-A Lab Control Sample 91.1 12 LCSD 160-559784/3-A Lab Control Sample Dup 80.8 MB 160-559784/1-A Method Blank 64.6 Tracer/Carrier Legend Th-229 = Thorium-229 Method: A-01-R - Isotopic Uranium (Alpha Spectrometry)

Matrix: Solid Prep Type: Total/NA Percent Yield (Acceptance Limits)

U-232 Lab Sample ID Client Sample ID (30-110) 160-44924-1 4FR-50-V-COM-001 105 160-44924-1 DU 4FR-50-V-COM-001 81.5 LCS 160-558497/2-A Lab Control Sample 103 MB 160-558497/1-A Method Blank 93.0 Tracer/Carrier Legend U-232 = Uranium-232 Eurofins St. Louis Page 15 of 15

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