ML23040A345

DHS Varick Street 5th Floor 4 of 7 - Attachment B (Part 2 of 2, Pdf Pages 162 to 245)

ML23040A345
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Issue date:	02/09/2023
From:	NRC Region 1
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Download: ML23040A345 (1)

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BACKGROUND BACKGROUND Source Ser. # N/A QC Daily Source Initial Source Readings Nuclide N/A Date Result (cpm) P/F Date Result (cpm) 8/21/2021 12 Pass 8/20/2021 16 8/23/2021 14 Pass 8/20/2021 14 8/24/2021 13 Pass 8/20/2021 9 8/25/2021 14 Pass 8/20/2021 15 8/26/2021 14 Pass 8/20/2021 13 8/27/2021 11 Pass 8/20/2021 14 8/30/2021 10 Pass 8/20/2021 12 8/31/2021 11 Pass 8/20/2021 10 9/1/2021 10 Pass 8/20/2021 10 9/2/2021 10 Pass 8/20/2021 5 Average 12 Ludlum 2221-446 (161580/PR051218)

Inst.#161580 Inst.#161580 Source Ser. # 1309 QC Daily Source Initial Source Readings Nuclide Co-60 Date Result (cpm) P/F Date Result (cpm) 8/21/2021 1,151 Pass 8/20/2021 981 8/23/2021 1,073 Pass 8/20/2021 1,429 8/24/2021 1,449 Pass 8/20/2021 1,362 8/25/2021 1,230 Pass 8/20/2021 1,458 8/26/2021 1,372 Pass 8/20/2021 1,414 8/27/2021 1,460 Pass 8/20/2021 1,202 8/30/2021 1,328 Pass 8/20/2021 1,073 8/31/2021 1,253 Pass 8/20/2021 1,018 9/1/2021 1,085 Pass 8/20/2021 988 9/2/2021 1,357 Pass 8/20/2021 1,431 Average 1236 Ludlum 2221-446 (161580/PR051218)

BACKGROUND BACKGROUND Source Ser. # N/A QC Daily Source Initial Source Readings Nuclide N/A Date Result (cpm) P/F Date Result (cpm) 8/21/2021 11 Pass 8/20/2021 10 8/23/2021 10 Pass 8/20/2021 12 8/24/2021 10 Pass 8/20/2021 11 8/25/2021 10 Pass 8/20/2021 10 8/26/2021 10 Pass 8/20/2021 9 8/27/2021 10 Pass 8/20/2021 11 8/30/2021 10 Pass 8/20/2021 12 8/31/2021 10 Pass 8/20/2021 11 9/1/2021 10 Pass 8/20/2021 13 9/2/2021 10 Pass 8/20/2021 14 Average 11 Micro Rem (1844)

Inst.#1844 Inst.#1844 Source Ser. # 1309 QC Daily Source Initial Source Readings Nuclide Co-60 Date Result (cpm) P/F Date Result (cpm) 8/21/2021 55 Pass 8/20/2021 40 8/23/2021 45 Pass 8/20/2021 45 8/24/2021 45 Pass 8/20/2021 50 8/25/2021 50 Pass 8/20/2021 45 8/26/2021 45 Pass 8/20/2021 45 8/27/2021 45 Pass 8/20/2021 50 8/30/2021 50 Pass 8/20/2021 40 8/31/2021 45 Pass 8/20/2021 50 9/1/2021 45 Pass 8/20/2021 45 9/2/2021 45 Pass 8/20/2021 55 Average 47 Micro Rem (1844)

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT F Data Verification - Chemical Constituents GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT F DATA VERIFICATION - CHEMICAL CONSTITUENTS Sample Integrity The laboratory data reports indicate that all samples were received in good condition. The temperature of one of the coolers upon receipt was 3.2 degrees Celsius (°C) within the criterion of 4+/-2 °C, while the other cooler had a slightly elevated temperature of 9.3 degrees Celsius (°C).

TCLP VOC analyses on four samples were performed outside the technical holding time. The sample containers for TCLP VOC analysis were noted to have contained headspace due to limited sample volume, which could have led to the loss of VOCs prior to extraction.

Laboratory Blanks Laboratory blanks were analyzed as required by the methods. No contaminants were found in the laboratory blanks associated with the chemical analyses, except for the following analytes that were detected at concentrations above the method detection limits but below the limits of quantitation: zinc in one method blank associated with the metals analysis; barium, chromium, and mercury in method blanks associated with TCLP analysis; and 2-butanone in one method blank associated with TCLP VOC analysis. The zinc results for project samples were more than three orders of magnitude greater than the blank detection; therefore, the blank detection does not affect the project data. Detected TCLP results for mercury in project samples were below the toxicity thresholds, and were at least 7 times the concentrations detected in the blanks, indicating that blank contamination likely had minimal impact on the reported results. Barium and chromium by TCLP were only analyzed for the Scrubber Drum sample; chromium was not detected, and the one detection was approximately 7 times the blank detection. 2-Butanone was detected in the TCLP extracts from two project samples at concentrations similar to the blank detection and approximately four orders of magnitude below the toxicity thresholds; these sample results may be biased high.

Laboratory Control Samples Laboratory control samples are prepared by spiking a clean matrix with the analytes of interest, at known concentrations. Laboratory control samples were analyzed as required by the methods, and laboratory control sample duplicates were also analyzed for some analyses. Percent recoveries and relative percent differences were within the method acceptance limits, indicating that the methods were appropriately in control and producing accurate results.

GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 MS/MSD Samples Matrix spike (MS) and matrix spike duplicate (MSD) samples are prepared by spiking an aliquot of project sample with a spike containing analytes of known concentration and are used to evaluate the impact of sample matrix on analyte quantitation. MS/MSD analyses were performed on project samples 4FR-128-001 (metals), Scrubber Drum-01 (silver and zinc), and DUP-09022021 and 4FR-76-001 (TCLP mercury), in accordance with the analytical methods. Percent recoveries were within acceptance limits for all analytes except as described below.

Recoveries of mercury in the MS/MSDs of samples DUP-09022021 and 4FR-76-001, associated with the TCLP mercury analysis, were above acceptance criteria. The associated mercury results in the parent samples were J1 qualified as estimated. However, the spike concentration for the MS and MSD was less than one-tenth of the concentrations detected in the parent samples. MS and MSD results outside acceptance criteria are typically not considered to indicate an issue with data quality when the spike concentration is less than one-fourth the concentration in the parent sample.

Recoveries and RPDs for multiple metals failed acceptance criteria in the MS and MSD of sample 4FR-128-001. The associated metal results in the parent sample were J1 qualified as estimated.

However, the spike concentrations for aluminum, calcium, chromium, copper, iron, lead, manganese, silver, and zinc in the MS and MSD were less than one-fourth of the concentration detected in the parent sample, and therefore the MS and MSD results outside acceptance criteria are not considered to indicate an issue with data quality for these metals. For the other metals that failed acceptance criteria (antimony, barium, nickel), the results should be considered estimated.

Laboratory Surrogates The laboratory data reports indicate that surrogates were added to samples for VOC analysis as required by the method, and all surrogate recoveries were within QC limits.

Dilutions The samples for total mercury analysis required dilution, ranging from 100x to 10000x, due to the high concentrations of mercury present. Five samples for TCLP mercury analysis also underwent dilution between 5x and 50x. The reporting limits were adjusted accordingly. Associated results were D qualified; however, the dilutions should not affect data quality.

GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 Summary of Data Quality Several results were qualified by the laboratory due to laboratory blank detections, MS/MSD results outside acceptance criteria, and dilutions due to high concentrations. However, none of the issues are significant enough to prevent use of the data in making project decisions. The data are usable as reported and qualified.

GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT G Data Verification - Radiological Constituents GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT G DATA VERIFICATION - RADIOLOGICAL CONSTITUENTS Instrument and ambient site background were determined for field measurements based on exploratory data analysis performed on site data. Field data were divided into data sets according to associated 4th Floor Riser pipe segments (Risers 50, 51, 64, 76, 128, 131, 144, 145, 154, 158, 168), remaining 4th Floor piping, and other. Other data included measurements on the unlabeled pipe segments and pipe segments not associated with a specific 4th Floor Riser. Each data set was further divided by measurement type; beta/gamma static, removable alpha, and removable beta.

Pipe segments associated with 4th Floor Risers 76, 128, and 145 as well as other data were investigated during June 2021 as well as August 21, and separate data sets were identified for each mobilization.

Each data set was evaluated using exploratory data analysis including calculation of summary statistics, graphical representation of the data set (box plots, histograms, normal probability plots) to visually identify potential outliers, and calculation of background threshold limits (BTVs).

BTVs are upper bounds for background distributions such that values exceeding the BTV provide evidence of data exceeding background. BTVs were calculated as the 95% Upper Simultaneous Limit for normally distributed data, or the 95% Chebyshev Upper Prediction Limit for data sets that did not follow a specific distribution (i.e., nonparametric data).

Beta/gamma static data sets followed normal or approximate normal distributions with no outliers except the four elevated results associated with 4th Floor Riser 50. All beta/gamma static data sets have similar average results and range of results, apart from the four outliers. All other beta/gamma static measurements were identified as not exceeding background. The beta/gamma results are summarized in Table G-1.

Removable alpha data sets did not follow a known distribution. Alpha counts are primarily zero or one and are more closely associated with binomial distributions or step functions. The maximum removable alpha count (pipe segment 46-2, 4th Floor Riser 145) represents a potential outlier and was identified as exceeding background. The removable alpha results are summarized in Table G-2.

Removable beta data sets followed normal or approximate normal distributions with no outliers.

All removable beta data sets have similar average results and range of results. All removable beta GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 measurements were identified as not exceeding background. The removable beta results are summarized in Table G-3.

Laboratory analytical results were evaluated against instrument background by the laboratory. All results receiving a U flag were identified as not exceeding background. The laboratory results are provided in Attachment D.

Table G-1. Summary of Beta/Gamma Static Measurements (cpm)

Data Set Mean Median St. Dev. Minimum Maximum BTV 4FR 50 August 15.0 8 34.4 3 219 21.2 4FR 51 August 8.7 9 2.9 3 16 16.4 4FR 64 June 8.1 8 2.6 2 14 16.5 4FR 76 June 11.3 11 3.4 5 18 20.5 4FR 76 August 9.2 9.5 3.1 5 16 22.9 4FR 128 June 7.7 7 2.8 4 12 13.2 4FR 128 August 8.3 9 4.6 0 19 22.2 4FR 131 August 9.0 9 2.7 4 16 16.8 4FR 144 June 9.4 10 3.2 3 16 17.6 4FR 145 June 9.2 9 3.7 2 22 22.0 4FR 145 August 9.4 9 2.4 6 16 16.1 4FR 154 August 11.3 10 2.3 10 14 14.0 4FR 158 August 9.3 9.5 3.0 5 17 16.9 4FR 168 August 8.9 9 3.9 0 19 21.2 4th Floor June 9.6 9 3.3 4 16 17.7 Other June 9.0 8.5 3.2 4 18 20.6 Other August 8.4 8 3.1 2 17 17.3 Notes:

4FR = 4th Floor Riser cpm = Counts per minute BTV = Background threshold limit St. Dev. = Standard Deviation GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 Table G-2. Summary of Removable Alpha Measurements (cpm)

Data Set Mean Median St. Dev. Minimum Maximum BTV 4FR 50 August 0.34 0 0.71 0 4 3.4 4FR 51 August 0.15 0 0.37 0 1 1.8 4FR 64 June 0.37 0 0.59 0 3 3.0 4FR 76 June 0.40 0 0.71 0 2 3.5 4FR 76 August 0.25 0 0.44 0 1 2.2 4FR 128 June 0.71 0 0.95 0 2 5.1 4FR 128 August 0.52 0 0.84 0 4 4.2 4FR 131 August 0.30 0 0.70 0 3 3.4 4FR 144 June 0.36 0 0.49 0 1 2.6 4FR 145 June 0.44 0 0.99 0 6 4.8 4FR 145 August 0.41 0 0.62 0 2 3.1 4FR 154 August 0.67 0 1.2 0 2 6.5 4FR 158 August 0.52 0 0.90 0 3 4.5 4FR 168 August 0.60 0 0.99 0 4 4.9 4th Floor June 0.24 0 0.44 0 1 2.2 Other June 0.26 0 0.54 0 2 2.7 Other August 0.13 0 0.34 0 1 1.6 Notes:

4FR = 4th Floor Riser cpm = Counts per minute BTV = Background threshold limit St. Dev. = Standard Deviation GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 Table G-3. Summary of Removable Beta Measurements (cpm)

Data Set Mean Median St. Dev. Minimum Maximum BTV 4FR 50 August 35.2 35 5.3 22 48 51.7 4FR 51 August 35.0 35 6.6 22 50 52.7 4FR 64 June 29.0 29 6.0 17 45 48.1 4FR 76 June 29.6 30 5.9 18 39 45.2 4FR 76 August 35.2 34.5 4.9 25 46 48.9 4FR 128 June 30.1 29 4.3 26 39 38.4 4FR 128 August 36.5 36 6.2 23 52 56.4 4FR 131 August 36.1 36.5 5.3 24 50 51.7 4FR 144 June 30.2 30 5.7 21 40 44.9 4FR 145 June 28.7 29 6.4 12 44 48.9 4FR 145 August 37.6 37 5.5 27 52 52.7 4FR 154 August 38.3 39 1.2 37 39 39.7 4FR 158 August 40.2 40 4.8 32 49 52.8 4FR 168 August 35.4 35 6.2 22 53 55.1 4th Floor June 27.2 27 5.5 20 38 40.9 Other June 27.5 27 4.9 19 39 41.6 Other August 34.4 33.5 6.3 21 49 53.2 Notes:

4FR = 4th Floor Riser cpm = Counts per minute BTV = Background threshold limit St. Dev. = Standard Deviation GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT I Radiological Field Data Table I-1. Piping Field Survey Results Summary Table I-2. Personnel Air Monitoring Data Table I-3. Final Basement Room B-10 Release Survey GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638001 36 S 1501 76 9 1 32 3638001 36 S 1502 76 10 1 36 3638001 147 N 1011 128 16 0 31 3638001 147 N 1012 128 13 1 40 3638001 147 N 1211 128 4 0 42 3638001 147 N 1212 128 9 0 30 3638001 147 NE 1021 131 16 0 40 3638001 147 NE 1022 131 12 0 41 3638001 147 NE 1081 131 6 0 41 3638001 147 NE 1082 131 5 1 36 3638001 147 NE 1091 131 8 0 36 3638001 147 NE 1092 131 8 0 37 3638001 147 NE 1111 131 12 2 40 3638001 147 NE 1112 131 10 2 41 3638001 147 NE 1151 131 7 0 32 3638001 147 NE 1152 131 4 0 33 3638001 148 NW 1161 131 9 0 38 3638001 148 NW 1162 131 8 0 40 3638001 148 N 1181 131 5 0 33 3638001 148 N 1182 131 4 0 40 3638001 148 N 1201 131 4 0 34 3638001 148 N 1202 131 10 0 41 3638001 148 E 1431 131 9 0 29 3638001 148 E 1432 131 10 0 41 3638001 148 E 1441 131 7 0 29 3638001 148 E 1442 131 10 1 35 3638001 148 E 1451 131 9 0 34 3638001 148 E 1452 131 8 1 30 3638001 148 NE 1471 131 9 0 33 3638001 148 NE 1472 131 6 0 34 3638001 149 SW 1481 131 11 0 37 3638001 149 SW 1482 131 10 1 38 3638001 149 SW 1491 131 9 0 31 3638001 149 SW 1492 131 15 0 28 3638001 148 NE 1521 131 9 0 44 3638001 148 NE 1522 131 Pipe Inaccessible 0 31 3638001 148 NE 1531 131 6 0 33 3638001 148 NE 1532 131 12 0 41 3638001 148 E 1641 131 9 0 41 3638001 148 E 1642 131 10 0 32 3638001 150 N 1681 131 13 3 27 3638001 150 N 1682 131 Pipe Inaccessible 2 30 3638001 150 N 1691 131 12 0 38 3638001 150 N 1692 131 9 0 42 3638001 165 S 1031 168 10 1 30 3638001 165 S 1032 168 17 0 34 3638001 165 S 1041 168 10 0 29 3638001 165 S 1042 168 2 1 35 3638001 165 S 1051 168 8 0 37 3638001 165 S 1052 168 7 0 45 3638001 165 N 1061 168 13 1 34 3638001 165 N 1062 168 19 0 46 3638001 166 NE 1101 168 7 1 30 3638001 166 NE 1102 168 8 0 40 3638001 166 E 1121 168 11 0 41 3638001 166 E 1122 168 9 0 37

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 1 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638001 168 N 1281 168 Pipe Inaccessible 1 28 3638001 168 N 1282 168 Pipe Inaccessible 1 48 3638001 166 NE 1291 168 16 0 33 3638001 166 NE 1292 168 13 0 38 3638001 168 N 1301 168 11 0 34 3638001 168 N 1302 168 9 0 38 3638001 168 NE 1311 168 10 0 36 3638001 168 NE 1312 168 12 0 31 3638001 168 NE 1321 168 8 0 32 3638001 168 NE 1322 168 11 1 53 3638001 168 E 1331 168 5 0 37 3638001 168 E 1332 168 12 0 49 3638001 168 E 1341 168 10 0 33 3638001 168 E 1342 168 12 0 25 3638001 168 SE 1361 168 8 0 26 3638001 168 SE 1362 168 12 0 30 3638001 168 SE 1371 168 14 2 35 3638001 168 SE 1372 168 11 0 31 3638001 168 SE 1381 168 9 1 40 3638001 168 SE 1382 168 5 1 35 3638001 168 SE 1391 168 16 0 41 3638001 168 SE 1392 168 5 1 38 3638001 169 NW 1401 168 8 0 32 3638001 169 NW 1402 168 2 0 29 3638001 169 NW 1411 168 5 1 25 3638001 169 NW 1412 168 11 2 42 3638001 168 E 1421 168 9 1 34 3638001 168 E 1422 168 11 1 35 3638001 165 S 1461 168 10 0 46 3638001 165 S 1462 168 10 0 32 3638001 149 SE 1501 168 8 0 22 3638001 149 SE 1502 168 13 1 31 3638001 149 SE 1511 168 3 0 29 3638001 149 SE 1512 168 9 0 36 3638001 169 N 1541 168 8 0 32 3638001 169 N 1542 168 6 0 34 3638001 169 N 1551 168 6 0 31 3638001 169 N 1552 168 7 Fecal Matter Present, No smear collected 3638001 169 N 1561 168 12 0 27 3638001 169 N 1562 168 9 0 41 3638001 149 NE 1651 168 12 4 30 3638001 149 NE 1652 168 3 3 41 3638001 150 NW 1671 168 12 1 39 3638001 150 NW 1672 168 8 0 37 3638001 149 NE 1701 168 7 0 30 3638001 149 NE 1702 168 12 0 37 3638001 149 NE 1711 168 8 1 41 3638001 149 NE 1712 168 5 1 37 3638001 149 NE 1721 168 8 0 29 3638001 149 NE 1722 168 8 4 36 3638001 149 NE 1731 168 8 1 42 3638001 149 NE 1732 168 11 1 27 3638001 1571 11 0 37 3638001 1572 4 0 31 3638001 157B1 Pipe Inaccessible 0 31 3638001 157B2 Pipe Inaccessible 1 29

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 2 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638001 1581 11 0 37 3638001 1582 8 0 32 3638001 1591 8 0 36 3638001 1592 15 0 28 3638001 1601 8 0 41 3638001 1602 2 0 32 3638001 1611 9 0 32 3638001 1612 7 0 29 3638001 1621 9 0 31 3638001 1622 8 1 27 3638001 1631 9 0 28 3638001 1632 9 0 40 3638001 165B1 5 0 25 3638001 165B2 7 1 45

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 3 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638002 31 N 1661 50 9 0 37 3638002 31 N 1662 50 9 1 32 3638002 32 N 1671 50 6 0 33 3638002 32 N 1672 50 7 0 48 3638002 31 N 1681 50 Pipe Not Found in Container 3638002 31 N 1682 50 Pipe Not Found in Container 3638002 31 N 1691 50 9 0 30 3638002 31 N 1692 50 8 0 32 3638002 31 N 1701 50 Pipe Not Found in Container 3638002 31 N 1702 50 Pipe Not Found in Container 3638002 30 N 1711 50 Pipe Not Found in Container 3638002 30 N 1712 50 Pipe Not Found in Container 3638002 30 N 1721 50 8 0 30 3638002 30 N 1722 50 8 0 39 3638002 31 NW 1731 50 208* 1 36 3638002 31 NW 1732 50 15 0 36 3638002 30 N 1741 50 11 0 39 3638002 30 N 1742 50 6 0 34 3638002 30 NE 1751 50 9 0 31 3638002 30 NE 1752 50 7 0 35 3638002 33 N 1761 50 10 0 34 3638002 33 N 1762 50 16 0 31 3638002 33 N 1771 50 29* 0 35 3638002 33 N 1772 50 32* 1 37 3638002 33 N 1781 50 14 0 45 3638002 33 N 1782 50 0 33 3638002 29 N 1791 50 7 1 47 3638002 29 N 1792 50 5 0 36 3638002 29 NE 1801 50 4 4 33 3638002 29 NE 1802 50 3 0 26 3638002 70 S 1821 50 15 0 43 3638002 70 S 1822 50 8 0 32 3638002 30 NW 1831 50 9 0 30 3638002 30 NW 1832 50 11 1 36 3638002 30 W 1841 50 6 0 29 3638002 30 W 1842 50 7 0 36 3638002 70 SE 1851 50 11 0 43 3638002 70 SE 1852 50 7 0 30 3638002 31 NW 1861 50 13 0 34 3638002 31 NW 1862 50 7 1 32 3638002 30 N 1871 50 7 0 32 3638002 30 N 1872 50 8 0 34 3638002 30 N 1881 50 8 0 38 3638002 30 N 1882 50 8 0 40 3638002 31 NW 1891 50 9 0 38 3638002 31 NW 1892 50 6 1 34 3638002 31 NW 1901 50 7 0 36 3638002 31 NW 1902 50 9 1 37 3638002 69 SE 1921 50 11 0 37 3638002 69 SE 1922 50 7 Fecal Matter Present, No smear collected 3638002 31 W 1931 50 7 3 40 3638002 31 W 1932 50 9 0 37 3638002 70 SW 1941 50 11 0 42 3638002 70 SW 1942 50 13 1 26 3638002 50 S 1971 50 6 2 35 3638002 50 S 1972 50 7 0 30

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 4 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638002 31 S 1981 50 4 0 37 3638002 31 S 1982 50 11 0 30 3638002 31 S 2001 50 219* 0 36 3638002 31 S 2002 50 9 1 38 3638002 31 N 2011 50 6 0 33 3638002 31 N 2012 50 7 1 28 3638002 70 S 2021 50 Pipe Not Found in Container 3638002 70 S 2022 50 Pipe Not Found in Container 3638002 50 NW 2031 50 10 0 31 3638002 50 NW 2032 50 10 0 34 3638002 50 NE 2041 50 Pipe Inaccessible 0 36 3638002 50 NE 2042 50 Pipe Inaccessible 0 32 3638002 50 N 2051 50 6 1 22 3638002 50 N 2052 50 4 0 24 3638002 50 N 2061 50 11 0 30 3638002 50 N 2062 50 4 1 39 3638002 51 NW 2081 50 18 0 41 3638002 51 NW 2082 50 11 0 26 3638002 69 W 2111 50 8 0 33 3638002 69 W 2112 50 0 38 3638002 69 W 2161 50 11 1 40 3638002 69 W 2162 50 10 1 46 3638002 69 NW 2171 50 4 0 36 3638002 69 NW 2172 50 6 0 43 3638002 70 S 2241 50 7 1 42 3638002 70 S 2242 50 15 0 45 3638002 70 S 2251 50 8 0 35 3638002 70 S 2252 50 Pipe Not Found in Container 3638002 31 NW 1911 51 Pipe Not Found in Container 3638002 31 NW 1912 51 12 0 39 3638002 69 S 1951 51 10 1 35 3638002 69 S 1952 51 9 0 32 3638002 69 s 1991 51 13 0 33 3638002 69 s 1992 51 5 0 30 3638002 51 W 2071 51 8 Fecal Matter Present, No smear collected 3638002 51 W 2072 51 5 Fecal Matter Present, No smear collected 3638002 69 S 2091 51 8 0 29 3638002 69 S 2092 51 9 1 24 3638002 69 S 2101 51 Pipe Not Found in Container 3638002 69 S 2102 51 12 3638002 51 W 2121 51 Pipe Not Found in Container 3638002 51 W 2122 51 Pipe Not Found in Container 3638002 51 W 2131 51 10 1 29 3638002 51 W 2132 51 11 0 35 3638002 51 W 2141 51 6 0 40 3638002 51 W 2142 51 8 0 29 3638002 51 W 2151 51 11 0 36 3638002 51 W 2152 51 10 0 22 3638002 50 SW 2181 51 6 0 29 3638002 50 SW 2182 51 8 0 42 3638002 50 SW 2191 51 9 0 35 3638002 50 SW 2192 51 9 0 40 3638002 50 SW 2201 51 16 0 50 3638002 50 SW 2202 51 3 1 35 3638002 50 SW 2211 51 8 Fecal Matter Present, No smear collected 3638002 50 SW 2212 51 7 0 31

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 5 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638002 50 W 2221 51 Pipe Inaccessible 0 42 3638002 50 W 2222 51 Pipe Inaccessible 0 42 3638002 50 SW 2231 51 10 0 43 3638002 50 SW 2232 51 8 0 33 3638002 51 S 2261 51 Pipe Inaccessible 0 44 3638002 51 S 2262 51 4 0 30 3638002 36 S 1511 76 10 1 38 3638002 36 S 1512 76 7 0 34 3638002 73 S 1521 76 10 0 33 3638002 73 S 1522 76 6 0 36 3638002 35 S 1531 76 Pipe Not Found in Container 3638002 35 S 1532 76 Pipe Not Found in Container 3638002 35 SE 1541 76 5 0 40 3638002 35 SE 1542 76 7 1 37 3638002 73 S 1551 76 16 1 46 3638002 73 S 1552 76 13 0 36 3638002 73 S 1561 76 14 1 32 3638002 73 S 1562 76 11 0 34 3638002 35 S 1571 76 11 0 36 3638002 35 S 1572 76 6 0 31 3638002 73 S 1581 76 7 0 25 3638002 73 S 1582 76 13 0 33 3638002 54 E 1591 76 7 0 41 3638002 54 E 1592 76 12 0 25 3638002 54 E 1601 76 5 0 31 3638002 54 E 1602 76 6 0 33 3638002 72 E 1611 76 11 0 41 3638002 72 E 1612 76 7 0 35 3638002 72 N 1621 76 6 1 31 3638002 72 N 1622 76 7 0 32 3638002 72 N 1631 76 12 1 32 3638002 72 N 1632 76 5 0 36 3638002 72 S 1641 76 10 0 33 3638002 72 S 1642 76 5 0 39 3638002 72 S 1651 76 9 0 44 3638002 72 S 1652 76 11 0 35 3638002 35 SE 1811 76 13 0 33 3638002 35 SE 1812 76 13 0 46 3638002 151 NW 2551 168 9 3638002 151 NW 2552 168 Pipe Not Found in Container 3638002 201 5 0 34 3638002 201 11 0 31 3638002 169B1 8 0 35 3638002 169B2 3 0 29 3638002 1961 10 0 32 3638002 1962 13 0 35 3638002 JD161 9 0 24 3638002 JD162 6 0 45 3638002 JD201 11 0 37 3638002 JD202 7 0 33

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 6 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Alpha Smear Beta Smear Downstream Model 446 1 min Waste Container Column Alpha Smear Beta Smear Results Results Direction of Piece # Riser# Static (Beta/Gamma) Pipe Collection Date Serial # to Pipe Results (cpm) Results (cpm) (dpm/100 (dpm/100 Pipe Opening/End Removed cm2) cm2) 3638003 146 W 631 128 9 2 26 6 3 6/15/2021 3638003 146 W 632 128 7 0 31 -1 28 6/15/2021 3638003 145 NE 641 128 12 0 29 -1 18 6/15/2021 3638003 145 NE 642 128 4 0 39 -1 67 6/15/2021 3638003 145 NE 643 128 10 2 27 6 8 6/15/2021 3638003 145 NE 661 128 5 0 30 -1 23 6/15/2021 3638003 145 NE 662 128 7 1 29 3 18 6/15/2021 3638003 144 NW 7 144 Pipe Not Found in Container N/A N/A N/A 3638003 144 NW 9 144 Pipe Not Found in Container N/A N/A N/A 3638003 144 NW 11 144 11 1 36 3 52 6/15/2021 3638003 144 NW 12 144 5 0 27 -1 8 6/15/2021 3638003 144 NW 21 144 9 1 40 3 72 6/15/2021 3638003 144 NW 22 144 11 0 36 -1 52 6/15/2021 3638003 144 NW 31 144 6 0 36 -1 52 6/15/2021 3638003 144 NW 32 144 4 0 37 -1 57 6/15/2021 3638003 144 NW 41 144 14 0 31 -1 28 6/15/2021 3638003 144 NW 42 144 12 0 33 -1 38 6/15/2021 3638003 144 S 51 144 8 1 25 3 -2 6/15/2021 3638003 144 S 52 144 11 1 39 3 67 6/15/2021 3638003 144 S 101 144 10 0 27 -1 8 6/15/2021 3638003 144 S 102 144 7 0 33 -1 38 6/15/2021 3638003 144 S 111 144 9 0 23 -1 -12 6/15/2021 3638003 144 S 112 144 8 1 29 3 18 6/15/2021 3638003 144 S 121 144 10 0 26 -1 3 6/15/2021 3638003 144 S 122 144 3 0 33 -1 38 6/15/2021 3638003 144 S 131 144 13 1 22 3 -17 6/15/2021 3638003 144 S 132 144 16 0 25 -1 -2 6/15/2021 3638003 144 NW 141 144 10 1 25 3 -2 6/15/2021 3638003 144 NW 142 144 11 0 31 -1 28 6/15/2021 3638003 144 NW 151 144 10 0 29 -1 18 6/15/2021 3638003 144 NW 152 144 8 1 21 3 -22 6/15/2021 3638003 144 NW 8 145 Pipe Not Found in Container N/A N/A N/A 3638003 144 NW 61 145 6 1 24 3 -7 6/15/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 7 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Alpha Smear Beta Smear Downstream Model 446 1 min Waste Container Column Alpha Smear Beta Smear Results Results Direction of Piece # Riser# Static (Beta/Gamma) Pipe Collection Date Serial # to Pipe Results (cpm) Results (cpm) (dpm/100 (dpm/100 Pipe Opening/End Removed cm2) cm2) 3638003 144 NW 62 145 8 1 32 3 33 6/15/2021 3638003 144 NW 63 145 11 1 27 3 8 6/15/2021 3638003 144 NW 161 145 17 1 26 3 3 6/15/2021 3638003 144 NW 162 145 8 1 36 3 52 6/15/2021 3638003 144 NW 171 145 5 0 22 -1 -17 6/15/2021 3638003 144 NW 172 145 15 0 33 -1 38 6/15/2021 3638003 144 NW 173 145 5 0 39 -1 67 6/15/2021 3638003 144 N 181 145 7 1 34 3 42 6/15/2021 3638003 144 N 182 145 5 0 30 -1 23 6/15/2021 3638003 144 N 183 145 10 0 33 -1 38 6/15/2021 3638003 144 N 191 145 7 0 23 -1 -12 6/15/2021 3638003 144 N 192 145 11 0 21 -1 -22 6/15/2021 3638003 144 N 193 145 4 0 33 -1 38 6/15/2021 3638003 144 N 194 145 9 0 26 -1 3 6/15/2021 3638003 144 N 201 145 2 0 19 -1 -32 6/15/2021 3638003 144 N 202 145 9 0 21 -1 -22 6/15/2021 3638003 144 N 211 145 3 0 21 -1 -22 6/15/2021 3638003 144 N 212 145 22 2 36 6 52 6/15/2021 3638003 144 N 221 145 9 0 32 -1 33 6/15/2021 3638003 144 N 221 145 5 0 24 -1 -7 6/15/2021 3638003 144 N 231 145 9 0 22 -1 -17 6/15/2021 3638003 144 N 232 145 10 0 26 -1 3 6/15/2021 3638003 144 NE 241 145 12 0 26 -1 3 6/15/2021 3638003 144 NE 242 145 11 0 30 -1 23 6/15/2021 3638003 144 NE 251 145 14 0 25 -1 -2 6/15/2021 3638003 144 NE 252 145 8 0 35 -1 47 6/15/2021 3638003 144 NE 261 145 8 0 30 -1 23 6/15/2021 3638003 144 NE 262 145 11 0 39 -1 67 6/15/2021 3638003 144 NW 271 145 10 0 34 -1 42 6/15/2021 3638003 144 NW 272 145 9 2 33 6 38 6/15/2021 3638003 144 NW 273 145 10 Pipe Inaccessible N/A N/A N/A 3638003 144 NW 281 145 6 0 32 -1 33 6/15/2021 3638003 144 NW 282 145 10 1 44 3 92 6/15/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 8 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Alpha Smear Beta Smear Downstream Model 446 1 min Waste Container Column Alpha Smear Beta Smear Results Results Direction of Piece # Riser# Static (Beta/Gamma) Pipe Collection Date Serial # to Pipe Results (cpm) Results (cpm) (dpm/100 (dpm/100 Pipe Opening/End Removed cm2) cm2) 3638003 144 W 291 145 9 0 34 -1 42 6/15/2021 3638003 144 W 292 145 13 0 36 -1 52 6/15/2021 3638003 125 W 301 145 7 0 31 -1 28 6/15/2021 3638003 125 W 302 145 10 0 23 -1 -12 6/15/2021 3638003 125 W 303 145 11 0 12 -1 -66 6/15/2021 3638003 125 W 311 145 12 0 27 -1 8 6/15/2021 3638003 125 W 311 145 18 0 40 -1 72 6/15/2021 3638003 125 NW 321 145 7 0 41 -1 77 6/15/2021 3638003 125 NW 322 145 5 2 36 6 52 6/15/2021 3638003 125 NW 331 145 11 0 32 -1 33 6/15/2021 3638003 125 NW 332 145 10 0 39 -1 67 6/15/2021 3638003 125 S 341 145 10 0 24 -1 -7 6/15/2021 3638003 125 S 342 145 8 0 29 -1 18 6/15/2021 3638003 125 S 351 145 12 0 26 -1 3 6/15/2021 3638003 125 S 352 145 11 0 29 -1 18 6/15/2021 3638003 125 S 361 145 12 0 29 -1 18 6/15/2021 3638003 125 S 362 145 4 0 30 -1 23 6/15/2021 3638003 125 S 371 145 13 0 31 -1 28 6/15/2021 3638003 125 S 372 145 6 0 33 -1 38 6/15/2021 3638003 125 NE 381 145 7 0 39 -1 67 6/15/2021 3638003 125 NE 382 145 10 0 24 -1 -7 6/15/2021 3638003 125 NE 391 145 8 2 25 6 -2 6/15/2021 3638003 125 NE 392 145 8 1 25 3 -2 6/15/2021 3638003 144 NE 411 145 11 0 31 -1 28 6/15/2021 3638003 144 NE 412 145 13 0 22 -1 -17 6/15/2021 3638003 144 NE 421 145 6 0 39 -1 67 6/15/2021 3638003 144 NE 422 145 7 0 32 -1 33 6/15/2021 3638003 144 NE 431 145 8 0 18 -1 -37 6/15/2021 3638003 144 NE 432 145 8 0 19 -1 -32 6/15/2021 3638003 144 NE 441 145 7 1 27 3 8 6/15/2021 3638003 144 NE 442 145 9 0 19 -1 -32 6/15/2021 3638003 144 NE 443 145 5 0 27 -1 8 6/15/2021 3638003 145 NW 451 145 10 0 20 -1 -27 6/15/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 9 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Alpha Smear Beta Smear Downstream Model 446 1 min Waste Container Column Alpha Smear Beta Smear Results Results Direction of Piece # Riser# Static (Beta/Gamma) Pipe Collection Date Serial # to Pipe Results (cpm) Results (cpm) (dpm/100 (dpm/100 Pipe Opening/End Removed cm2) cm2) 3638003 145 NW 452 145 3 0 26 -1 3 6/15/2021 3638003 145 NW 453 145 5 0 34 -1 42 6/15/2021 3638003 145 NW 454 145 6 0 23 -1 -12 6/15/2021 3638003 145 NW 461 145 9 0 25 -1 -2 6/15/2021 3638003 145 NW 462 145 12 6 35 21 47 6/15/2021 3638003 145 N 471 145 10 1 19 3 -32 6/15/2021 3638003 145 N 472 145 10 0 22 -1 -17 6/15/2021 3638003 144 NE 491 145 6 3 20 10 -27 6/15/2021 3638003 144 NE 492 145 2 0 29 -1 18 6/15/2021 3638003 145 N 521 145 17 4 31 14 28 6/15/2021 3638003 145 N 522 145 11 0 39 -1 67 6/15/2021 3638003 145 N 531 145 4 0 26 -1 3 6/15/2021 3638003 145 N 532 145 7 3 30 10 23 6/15/2021 3638003 145 N 541 145 15 0 25 -1 -2 6/15/2021 3638003 145 N 542 145 12 0 33 -1 38 6/15/2021 3638003 145 N 551 145 11 2 27 6 8 6/15/2021 3638003 145 N 552 145 13 0 19 -1 -32 6/15/2021 3638003 145 NE 571 145 8 0 23 -1 -12 6/15/2021 3638003 145 NE 572 145 20 1 26 3 3 6/15/2021 3638003 145 NE 573 145 11 0 30 -1 23 6/15/2021 3638003 145 NE 574 145 7 1 29 3 18 6/15/2021 3638003 145 NE 601 145 10 0 32 -1 33 6/15/2021 3638003 145 NE 602 145 9 1 37 3 57 6/15/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 10 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638004 28 E 2751 64 Pipe Not Found in Container 3638004 28 E 2752 64 Pipe Not Found in Container 3638004 125 NW 2571 145 6 0 44 3638004 125 NW 2572 145 9 0 35 3638004 125 N 2581 145 Pipe Not Found in Container 3638004 125 N 2582 145 Pipe Not Found in Container 3638004 125 NW 2591 145 10 0 52 3638004 125 NW 2592 145 10 0 37 3638004 125 NW 2601 145 12 1 38 3638004 125 NW 2602 145 8 0 38 3638004 154 N 2692 154 10 2 39 3638004 154 N 2701 154 10 0 37 3638004 154 N 2702 154 14 0 39 3638004 158 W 2611 158 5 0 45 3638004 158 W 2612 158 7 0 32 3638004 158 W 2621 158 Pipe Inaccessible 0 40 3638004 158 W 2622 158 Pipe Inaccessible 1 34 3638004 158 W 2631 158 11 1 42 3638004 158 W 2632 158 11 0 44 3638004 158 W 2641 158 6 3 40 3638004 157 W 2651 158 6 1 49 3638004 157 W 2652 158 12 3 43 3638004 157 W 2661 158 17 0 44 3638004 157 W 2662 158 6 0 33 3638004 155 W 2671 158 8 0 43 3638004 155 W 2672 158 10 0 37 3638004 155 W 2681 158 7 0 33 3638004 155 W 2682 158 8 0 44 3638004 157 W 2711 158 11 1 37 3638004 157 W 2712 158 14 0 42 3638004 157 W 2721 158 10 1 46 3638004 157 W 2722 158 8 0 40 3638004 157 W 2731 158 9 0 37 3638004 157 W 2732 158 10 0 34 3638004 158 W 2741 158 10 1 46 3638004 158 W 2742 158 Pipe Inaccessible 0 39 3638004 151 NW 2561 168 17 0 41 3638004 151 NW 2562 168 10 1 28 3638004 2551 3 0 44 3638004 2552 8 0 42

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 11 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Downstream Model 446 1 min Static Alpha Smear Beta Smear Waste Container Column Alpha Smear Beta Smear Direction of Piece # Riser# (Beta/Gamma) Pipe Results Results Date Serial # to Pipe Results (cpm) Results (cpm)

Pipe Opening/End (dpm/100 cm2) (dpm/100 cm2)

Removed 3638005 66 E 281 64 7 0 25 -1 0 6/16/2021 3638005 66 S 291 64 12 0 24 -1 -5 6/16/2021 3638005 66 W 299 64 12 1 23 3 -10 6/17/2021 3638005 66 NW 301 64 8 1 20 3 -25 6/16/2021 3638005 65 S 309 64 9 2 36 7 54 6/17/2021 3638005 65 W 314 64 Pipe Not Found in Container 3638005 28 E 2751 64 11 1 32 3 35 6/17/2021 3638005 28 NA 2751 64 11 1 32 3 35 6/16/2021 3638005 28 E 2752 64 8 1 39 3 69 6/17/2021 3638005 28 NA 2752 64 8 1 39 3 69 6/16/2021 3638005 28 E 2761 64 9 0 30 -1 25 6/17/2021 3638005 28 E 2762 64 14 0 36 -1 54 6/17/2021 3638005 66 E 2771 64 2 0 21 -1 -20 6/17/2021 3638005 66 E 2772 64 6 0 27 -1 10 6/17/2021 3638005 66 E 2781 64 7 1 32 3 35 6/17/2021 3638005 66 E 2782 64 11 1 40 3 74 6/17/2021 3638005 66 E 2791 64 11 1 41 3 79 6/16/2021 3638005 66 E 2792 64 10 0 29 -1 20 6/16/2021 3638005 66 E 2801 64 7 0 26 -1 5 6/17/2021 3638005 66 E 2802 64 10 0 32 -1 35 6/17/2021 3638005 66 E 2821 64 8 0 26 -1 5 6/17/2021 3638005 66 E 2822 64 11 0 29 -1 20 6/17/2021 3638005 47 E 2831 64 8 0 26 -1 5 6/17/2021 3638005 47 E 2832 64 8 0 45 -1 99 6/17/2021 3638005 47 E 2841 64 7 1 36 3 54 6/17/2021 3638005 47 E 2842 64 10 0 25 -1 0 6/17/2021 3638005 66 E 2851 64 3 2 25 7 0 6/17/2021 3638005 66 E 2852 64 6 0 31 -1 30 6/17/2021 3638005 47 E 2861 64 5 1 24 3 -5 6/17/2021 3638005 47 E 2862 64 9 0 33 -1 40 6/17/2021 3638005 47 E 2871 64 5 1 36 3 54 6/17/2021 3638005 47 E 2872 64 8 0 29 -1 20 6/17/2021 3638005 66 E 2881 64 6 0 24 -1 -5 6/17/2021 3638005 66 E 2882 64 6 0 29 -1 20 6/17/2021 3638005 66 E 2891 64 10 0 31 -1 30 6/17/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 12 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Downstream Model 446 1 min Static Alpha Smear Beta Smear Waste Container Column Alpha Smear Beta Smear Direction of Piece # Riser# (Beta/Gamma) Pipe Results Results Date Serial # to Pipe Results (cpm) Results (cpm)

Pipe Opening/End (dpm/100 cm2) (dpm/100 cm2)

Removed 3638005 66 E 2892 64 12 0 26 -1 5 6/17/2021 3638005 66 E 2893 64 11 1 40 3 74 6/17/2021 3638005 66 E 2901 64 4 0 21 -1 -20 6/17/2021 3638005 66 E 2902 64 11 0 39 -1 69 6/17/2021 3638005 64 E 2921 64 4 0 21 -1 -20 6/17/2021 3638005 64 E 2922 64 8 0 28 -1 15 6/17/2021 3638005 66 S 2931 64 4 1 19 3 -30 6/16/2021 3638005 66 S 2932 64 9 1 28 3 15 6/16/2021 3638005 66 S 2941 64 6 0 29 -1 20 6/16/2021 3638005 66 S 2942 64 12 0 32 -1 35 6/16/2021 3638005 66 W 2951 64 9 0 27 -1 10 6/16/2021 3638005 66 W 2952 64 6 1 27 3 10 6/16/2021 3638005 66 W 2961 64 8 0 26 -1 5 6/16/2021 3638005 66 W 2962 64 6 1 29 3 20 6/16/2021 3638005 66 W 2971 64 3 0 33 -1 40 6/17/2021 3638005 66 W 2972 64 6 0 32 -1 35 6/17/2021 3638005 66 NW 2981 64 11 1 38 3 64 6/17/2021 3638005 66 NW 2982 64 3 0 29 -1 20 6/17/2021 3638005 66 E 3001 64 10 0 26 -1 5 6/17/2021 3638005 66 E 3002 64 7 0 29 -1 20 6/17/2021 3638005 66 E 3003 64 8 0 32 -1 35 6/17/2021 3638005 66 NA 3011 64 8 1 19 3 -30 6/16/2021 3638005 66 NW 3011 64 8 1 19 3 -30 6/17/2021 3638005 66 NW 3011 64 5 0 20 -1 -25 6/17/2021 3638005 66 NA 3012 64 5 0 20 -1 -25 6/16/2021 3638005 64 E 3021 64 9 1 30 3 25 6/17/2021 3638005 64 E 3022 64 9 1 22 3 -15 6/17/2021 3638005 64 E 3031 64 7 0 37 -1 59 6/17/2021 3638005 64 E 3032 64 8 0 25 -1 0 6/17/2021 3638005 64 E 3033 64 5 0 29 -1 20 6/17/2021 3638005 66 W 3041 64 11 0 33 -1 40 6/17/2021 3638005 66 W 3042 64 6 0 29 -1 20 6/17/2021 3638005 66 W 3043 64 14 0 21 -1 -20 6/17/2021 3638005 66 SW 3051 64 9 0 23 -1 -10 6/17/2021 3638005 66 SW 3052 64 4 0 22 -1 -15 6/17/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 13 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Downstream Model 446 1 min Static Alpha Smear Beta Smear Waste Container Column Alpha Smear Beta Smear Direction of Piece # Riser# (Beta/Gamma) Pipe Results Results Date Serial # to Pipe Results (cpm) Results (cpm)

Pipe Opening/End (dpm/100 cm2) (dpm/100 cm2)

Removed 3638005 65 W 306 DUP1 64 7 0 31 -1 30 6/17/2021 3638005 65 W 306 DUP2 64 10 0 36 -1 54 6/17/2021 3638005 65 NA 3061 64 7 0 31 -1 30 6/16/2021 3638005 65 W 3061 64 11 1 29 3 20 6/17/2021 3638005 65 NA 3062 64 10 0 36 -1 54 6/16/2021 3638005 65 W 3062 64 6 0 31 -1 30 6/17/2021 3638005 65 W 3063 64 9 1 22 3 -15 6/17/2021 3638005 65 W 3064 64 7 0 39 -1 69 6/17/2021 3638005 65 W 3071 64 4 1 26 3 5 6/17/2021 3638005 65 W 3071 64 10 0 24 -1 -5 6/17/2021 3638005 65 S 3081 64 5 1 29 3 20 6/17/2021 3638005 65 S 3082 64 9 3 26 10 5 6/17/2021 3638005 65 E 3101 64 12 0 17 -1 -40 6/17/2021 3638005 65 E 3102 64 8 0 26 -1 5 6/17/2021 3638005 65 S 3111 64 12 1 28 3 15 6/17/2021 3638005 65 S 3112 64 10 0 26 -1 5 6/17/2021 3638005 65 S 3113 64 6 0 30 -1 25 6/17/2021 3638005 65 S 3114 64 5 0 39 -1 69 6/17/2021 3638005 65 S 3121 64 9 0 25 -1 0 6/17/2021 3638005 65 S 3122 64 9 0 26 -1 5 6/17/2021 3638005 65 W 3131 64 11 0 27 -1 10 6/17/2021 3638005 65 W 3132 64 10 0 39 -1 69 6/17/2021 3638005 56 N 315 76 Pipe Not Found in Container 3638005 56 N 319 76 Pipe Not Found in Container 3638005 37 N 320 76 5 1 31 3 30 6/16/2021 3638005 55 S 326 76 Pipe Not Found in Container 3638005 56 N 3161 76 7 1 28 3 15 6/16/2021 3638005 56 N 3162 76 10 1 30 3 25 6/16/2021 3638005 56 N 3163 76 6 0 22 -1 -15 6/16/2021 3638005 56 N 3171 76 9 0 29 -1 20 6/16/2021 3638005 56 N 3172 76 15 2 37 7 59 6/16/2021 3638005 56 N 3181 76 14 0 31 -1 30 6/16/2021 3638005 56 N 3182 76 9 0 27 -1 10 6/16/2021 3638005 36 N 3211 76 11 0 34 -1 44 6/16/2021 3638005 36 N 3212 76 11 2 37 7 59 6/16/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 14 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Downstream Model 446 1 min Static Alpha Smear Beta Smear Waste Container Column Alpha Smear Beta Smear Direction of Piece # Riser# (Beta/Gamma) Pipe Results Results Date Serial # to Pipe Results (cpm) Results (cpm)

Pipe Opening/End (dpm/100 cm2) (dpm/100 cm2)

Removed 3638005 55 S 3221 76 11 0 26 -1 5 6/16/2021 3638005 55 S 3222 76 17 0 31 -1 30 6/16/2021 3638005 55 SE 3231 76 15 1 25 3 0 6/16/2021 3638005 55 SE 3232 76 10 0 24 -1 -5 6/16/2021 3638005 55 S 3241 76 12 0 24 -1 -5 6/16/2021 3638005 55 S 3242 76 14 0 39 -1 69 6/16/2021 3638005 55 S 3251 76 11 0 20 -1 -25 6/16/2021 3638005 55 S 3252 76 18 0 26 -1 5 6/16/2021 3638005 56 SW 3271 76 11 0 32 -1 35 6/16/2021 3638005 56 SW 3272 76 9 0 39 -1 69 6/16/2021 3638005 56 SW 3281 76 14 0 18 -1 -35 6/16/2021 3638005 56 SW 3282 76 6 0 28 -1 15 6/16/2021 3638005 56 SW 3291 76 11 0 33 -1 40 6/16/2021 3638005 56 SW 3292 76 16 0 39 -1 69 6/16/2021 3638005 56 SW 3293 76 10 2 30 7 25 6/16/2021 3638005 80 S 334 N/A 9 0 25 -1 0 6/16/2021 3638005 80 S 3301 N/A 8 0 25 -1 0 6/16/2021 3638005 80 S 3302 N/A 5 0 29 -1 20 6/16/2021 3638005 80 S 3311 N/A 10 0 27 -1 10 6/16/2021 3638005 80 S 3311 N/A 8 0 39 -1 69 6/16/2021 3638005 80 S 3321 N/A 4 0 31 -1 30 6/16/2021 3638005 80 S 3322 N/A 8 0 28 -1 15 6/16/2021 3638005 80 S 3331 N/A 4 0 27 -1 10 6/16/2021 3638005 80 S 3332 N/A 7 2 22 7 -15 6/16/2021 3638005 80 S 3333 N/A 5 0 35 -1 49 6/16/2021 3638005 80 SE 3351 N/A 12 0 23 -1 -10 6/16/2021 3638005 80 SE 3352 N/A 10 0 29 -1 20 6/16/2021 3638005 80 SE 3361 N/A 9 0 23 -1 -10 6/16/2021 3638005 80 SE 3362 N/A 9 2 36 7 54 6/16/2021 3638005 80 SE 3371 N/A 8 0 28 -1 15 6/16/2021 3638005 80 SE 3372 N/A 6 0 23 -1 -10 6/16/2021 3638005 Gate 14 S 3381 N/A 9 0 22 -1 -15 6/16/2021 3638005 Gate 14 S 3382 N/A 8 0 29 -1 20 6/16/2021 3638005 Gate 14 S 3391 N/A 7 0 31 -1 30 6/16/2021 3638005 Gate 14 S 3392 N/A 12 1 19 3 -30 6/16/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 15 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Downstream Model 446 1 min Static Alpha Smear Beta Smear Waste Container Column Alpha Smear Beta Smear Direction of Piece # Riser# (Beta/Gamma) Pipe Results Results Date Serial # to Pipe Results (cpm) Results (cpm)

Pipe Opening/End (dpm/100 cm2) (dpm/100 cm2)

Removed 3638005 Gate 14 S 3401 N/A 9 0 24 -1 -5 6/16/2021 3638005 Gate 14 S 3402 N/A 11 0 28 -1 15 6/16/2021 3638005 Gate 14 S 3403 N/A 10 0 38 -1 64 6/16/2021 3638005 Gate 14 S 3411 N/A 17 0 24 -1 -5 6/16/2021 3638005 Gate 14 S 3412 N/A 11 0 23 -1 -10 6/16/2021 3638005 Gate 14 S 3413 N/A 16 1 25 3 0 6/16/2021 No ID# 1-1 NA NA NA NA 6 1 20 3 -25 6/16/2021 No ID# 1-2 NA NA NA NA 5 0 24 -1 -5 6/16/2021 No ID# 2 NA NA NA NA 9 0 26 -1 5 6/16/2021 No ID# 3-1 NA NA NA NA 7 0 28 -1 15 6/16/2021 No ID# 3-2 NA NA NA NA 9 0 31 -1 30 6/16/2021 No ID# 4-1 NA NA NA NA 8 1 35 3 49 6/16/2021 No ID# 4-2 NA NA NA NA 11 1 30 3 25 6/16/2021 No ID# 5-1 NA NA NA NA 14 0 26 -1 5 6/16/2021 No ID# 5-2 NA NA NA NA 8 0 23 -1 -10 6/16/2021 No ID# 6-1 NA NA NA NA 12 0 26 -1 5 6/16/2021 No ID# 6-2 NA NA NA NA 8 1 33 3 40 6/16/2021 No ID# 7 NA NA NA NA 5 0 23 -1 -10 6/16/2021 No ID# 8 NA NA NA NA 8 0 35 -1 49 6/16/2021 No ID# 9 NA NA NA NA 10 0 30 -1 25 6/16/2021 No ID# 10 NA NA NA NA 18 1 22 3 -15 6/16/2021 No ID# 11 NA NA NA NA 8 0 29 -1 20 6/16/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 16 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638007 145 W 481 128 5 1 31 3638007 145 W 482 128 11 0 43 3638007 145 N 501 128 10 2 35 3638007 145 N 502 128 7 0 42 3638007 145 N 511 128 8 2 31 3638007 145 N 512 128 15 2 41 3638007 145 N 561 128 6 1 42 3638007 145 N 562 128 11 0 36 3638007 145 NE 581 128 10 0 31 3638007 145 NE 582 128 10 0 43 3638007 145 NE 591 128 10 0 31 3638007 145 NE 592 128 10 1 31 3638007 145 NE 611 128 7 0 34 3638007 145 NE 612 128 9 0 41 3638007 145 NE 651 128 0 1 37 3638007 145 NE 652 128 3 0 42 3638007 146 NW 691 128 9 Inaccessible for Smear 3638007 146 NW 692 128 10 Inaccessible for Smear 3638007 146 N 701 128 0 0 32 3638007 146 N 702 128 0 0 31 3638007 146 N 711 128 11 0 37 3638007 146 N 712 128 7 1 38 3638007 146 N 721 128 13 1 45 3638007 146 N 722 128 0 0 36 3638007 146 N 731 128 0 0 35 3638007 146 N 732 128 0 0 36 3638007 146 N 741 128 Pipe Not Found in Container 3638007 146 N 742 128 Pipe Not Found in Container 3638007 146 N 751 128 0 1 30 3638007 146 N 752 128 0 0 34 3638007 146 N 761 128 10 0 39 3638007 146 N 762 128 0 0 35 3638007 146 NE 771 128 0 0 48 3638007 146 NE 772 128 0 1 25 3638007 146 NE 781 128 10 0 47 3638007 146 NE 782 128 0 0 48 3638007 146 NE 791 128 7 0 25 3638007 146 NE 792 128 8 0 47 3638007 146 NE 801 128 10 0 38 3638007 146 NE 802 128 14 1 41 3638007 146 NE 811 128 Pipe Inaccessible 0 30 3638007 146 NE 812 128 Pipe Inaccessible 0 30 3638007 146 NE 821 128 0 0 31 3638007 146 NE 822 128 0 0 43 3638007 126 N 831 128 13 0 38 3638007 126 N 832 128 5 1 40 3638007 126 N 841 128 9 1 40 3638007 126 N 842 128 15 0 36 3638007 126 N 851 128 15 0 35 3638007 126 N 852 128 6 4 31 3638007 126 N 861 128 19 0 32 3638007 126 N 862 128 16 2 38 3638007 126 N 871 128 12 1 33 3638007 126 N 872 128 12 2 38 3638007 126 N 881 128 10 3 43 3638007 126 N 882 128 9 0 32

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 17 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638007 146 NE 891 128 8 0 42 3638007 146 NE 892 128 6 0 34 3638007 146 NE 901 128 5 0 41 3638007 146 NE 902 128 10 3 41 3638007 147 NW 911 128 12 1 44 3638007 147 NW 912 128 8 0 30 3638007 147 NW 921 128 10 0 37 3638007 147 NW 922 128 0 0 49 3638007 146 NE 931 128 6 3 40 3638007 146 NE 932 128 12 0 42 3638007 146 NE 941 128 6 0 34 3638007 146 NE 942 128 8 0 37 3638007 128 W 951 128 10 0 40 3638007 128 W 952 128 17 2 46 3638007 128 W 961 128 16 0 27 3638007 128 W 962 128 9 1 41 3638007 128 W 971 128 8 2 46 3638007 128 W 972 128 8 2 43 3638007 128 NW 981 128 8 0 38 3638007 128 NW 982 128 14 0 23 3638007 128 NW 991 128 8 1 30 3638007 128 NW 992 128 10 1 35 3638007 147 N 1001 128 7 0 23 3638007 147 N 1002 128 5 0 26 3638007 147 NE 1051 128 Pipe Not Found in Container 3638007 147 NE 1052 128 Pipe Not Found in Container 3638007 147 N 2271 128 7 1 31 3638007 147 N 2272 128 9 1 38 3638007 147 N 2281 128 9 1 33 3638007 147 N 2282 128 11 0 35 3638007 147 NW 2291 128 8 0 43 3638007 147 NW 2292 128 8 0 25 3638007 146 NW 2311 128 9 0 42 3638007 146 NW 2312 128 4 1 37 3638007 145 N 2341 128 15 0 36 3638007 145 N 2342 128 15 0 52 3638007 145 NE 2381 128 5 0 42 3638007 145 NE 2382 128 8 0 32 3638007 145 SE 2391 128 10 0 30 3638007 145 SE 2392 128 10 0 31 3638007 145 SE 2421 128 12 1 35 3638007 145 SE 2422 128 8 0 30 3638007 146 N 2431 128 13 0 27 3638007 146 N 2432 128 14 0 34 3638007 145 N 2441 128 8 1 36 3638007 145 N 2442 128 5 0 32 3638007 127 SW 2451 128 14 1 43 3638007 127 SW 2452 128 9 1 42 3638007 148 W 1231 131 11 0 50 3638007 148 W 1232 131 7 0 24 3638007 148 NE 1571 131 Pipe Not Found in Container 3638007 148 NE 1572 131 Pipe Not Found in Container 3638007 148 NE 1581 131 Pipe Not Found in Container 3638007 148 NE 1582 131 Pipe Not Found in Container 3638007 149 N 1611 131 Pipe Not Found in Container 3638007 149 N 1612 131 Pipe Not Found in Container

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 18 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638007 148 SW 2351 131 9 0 30 3638007 148 SW 2352 131 9 0 37 3638007 149 N 2401 131 9 0 40 3638007 149 N 2402 131 9 1 44 3638007 148 N 2411 131 11 0 35 3638007 148 N 2412 131 11 0 40 3638007 145 NW 2301 145 10 1 33 3638007 145 NW 2302 145 10 0 36 3638007 145 SW 2321 145 6 1 47 3638007 145 SW 2322 145 10 1 33 3638007 144 N 2331 145 6 2 41 3638007 144 N 2332 145 9 0 34 3638007 143 N 2361 145 12 1 32 3638007 143 N 2362 145 9 0 34 3638007 144 N 2371 145 9 1 37 3638007 144 N 2372 145 9 0 32 3638007 144 NE 2461 145 6 0 42 3638007 144 NE 2462 145 10 0 43 3638007 145 SW 2471 145 8 0 32 3638007 145 SW 2472 145 15 1 41 3638007 125 E 2481 145 12 0 41 3638007 125 E 2482 145 11 0 36 3638007 144 N 2491 145 Pipe Not Found in Container 3638007 144 N 2492 145 Pipe Not Found in Container 3638007 143 SE 2501 145 11 0 36 3638007 143 SE 2502 145 6 0 38 3638007 144 N 2511 145 16 0 37 3638007 144 N 2512 145 7 1 31 3638007 143 S 2521 145 10 0 46 3638007 143 S 2522 145 9 0 41 3638007 143 NW 2531 145 9 0 32 3638007 143 NW 2532 145 8 0 27 3638007 144 S 2541 145 Pipe Not Found in Container 3638007 144 S 2542 145 Pipe Not Found in Container 3638007 144 NE 401 145 11 1 44 3638007 144 NE 402 145 7 2 34 3638007 167 NW 1131 168 7 2 39 3638007 167 NW 1132 168 6 4 48 3638007 167 NW 1141 168 10 0 32 3638007 167 NW 1142 168 9 0 41 3638007 167 N 1171 168 16 0 39 3638007 167 N 1172 168 11 1 37 3638007 167 NE 1191 168 6 2 40 3638007 167 NE 1192 168 10 0 35 3638007 167 E 1241 168 0 0 35 3638007 167 E 1242 168 10 2 30 3638007 167 E 1251 168 0 1 28 3638007 167 E 1252 168 0 1 31 3638007 166 E 1261 168 9 0 43 3638007 166 E 1262 168 12 0 45 3638007 166 E 1271 168 5 0 44 3638007 166 E 1272 168 6 0 31 3638007 168 E 1351 168 14 0 46 3638007 168 E 1352 168 8 0 30 3638007 169 N 1591 168 Pipe Not Found in Container 3638007 169 N 1592 168 Pipe Not Found in Container

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 19 of 21

B25 CONTAINER #3638T007 Radiological Survey Results Nearest Waste Model 446 Take 1 Smear Results from Pipe Smear Results from Pipe Column Downstream Opening/End Opening/End Container Piece # Riser# min Static (Beta/Gamma) to Pipe Direction of Pipe Serial # Pipe Opening/End (cpm) Alpha (cpm) Beta (cpm)

Removed 3638007 169 N 1601 168 Pipe Not Found in Container 3638007 169 N 1602 168 Pipe Not Found in Container 3638007 169 N 1621 168 Pipe Not Found in Container 3638007 169 N 1622 168 Pipe Not Found in Container 3638007 169 N 1631 168 Pipe Not Found in Container 3638007 169 N 1632 168 Pipe Not Found in Container 3638007 164 E 621 168 5 1 29 3638007 164 E 622 168 13 4 34 3638007 165 N 671 168 4 0 34 3638007 165 N 672 168 6 0 34 3638007 165 N 681 168 8 0 38 3638007 165 N 682 168 0 0 27 3638007 1071 Pipe Inaccessible 0 39 3638007 1072 Pipe Inaccessible 0 45 3638007 1221 Pipe Inaccessible 0 31 3638007 1222 Pipe Inaccessible 0 31 3638007 2361A 6 0 42 3638007 2362A 9 0 32 3638007 611B Pipe Inaccessible 0 49 3638007 612B Pipe Inaccessible 0 35 3638007 731B 7 0 47 3638007 732B 15 0 30 3638007 921B Pipe Inaccessible 1 33 3638007 922B Pipe Inaccessible 0 34 3638007 JD121 8 0 39 3638007 JD122 17 0 39 3638007 JD131 7 0 33 3638007 JD132 9 1 26 3638007 JD141 5 0 37 3638007 JD142 10 0 35 3638007 JD151 10 0 35 3638007 JD152 7 0 44 3638007 JD161 6 1 26 3638007 JD162 11 0 21 3638007 JD171 8 0 28 3638007 JD172 9 1 37

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

Page 20 of 21

Alpha Smear Beta Smear Model 446 1 min Static Alpha Smear Beta Smear Results Results Location Pipe ID/ Piece # Riser# (Beta/Gamma) Pipe Date Results (cpm) Results (cpm) (dpm/100 (dpm/100 Opening/End cm2) cm2) 4th Floor 4F64001 64 9 0 20 -1 -25 6/18/2021 4th Floor 4F64001 D1 64 14 0 22 -1 -15 6/18/2021 4th Floor 4F64001 D2.1 64 5 1 25 3 0 6/18/2021 4th Floor 4F64001 D2.2 64 6 0 20 -1 -25 6/18/2021 4th Floor 4F64001 D3 64 9 1 33 3 40 6/18/2021 4th Floor 4F64001 D4 64 9 0 34 -1 44 6/18/2021 4th Floor 4F64001 D5 64 9 1 31 3 30 6/18/2021 4th Floor 4F64001 D6 64 10 0 24 -1 -5 6/18/2021 4th Floor 4F76001 76 4 0 31 -1 30 6/18/2021 4th Floor 4F76001 D1 76 12 1 34 3 44 6/18/2021 4th Floor 4F76001 D2 76 16 0 21 -1 -20 6/18/2021 4th Floor 4F76001 D3 76 10 0 28 -1 15 6/18/2021 4th Floor 4F76001 D4 76 10 0 38 -1 64 6/18/2021 4th Floor 4F76001 D5 76 15 0 23 -1 -10 6/18/2021 4th Floor 4F158001 158 10 0 28 -1 15 6/18/2021 4th Floor 4F158001 D2 158 7 0 27 -1 10 6/18/2021 4th Floor 4F168001 168 8 0 24 -1 -5 6/18/2021

• Exceeds Background Threshold Value (BTV; see Attachment G)

Note: Counts per minute (cpm) results are total (or gross) measurements not corrected for background.

Disintegrations per minute per 100 square centimeter (dpm/100 cm2) results are net results corrected for ambient background.

This page intentionally left blank Survey Form Location: Basement Survey RWP# NA Survey # arickSt-2021-B-10 Free releas Unrestriced release Page 1 of 9 Site: Varick Street Type:

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

No. No.

18 20 1 1.0 29 1 19.8 -107 2 0.0 41 2 29.7 18 3 2.0 26 3 49.5 161 4 0.0 32 4 59.4 54 19 5 0.0 33 5 108.9 -18 6 0.0 39 6 99.0 -554 16 17 7 0.0 32 7 108.9 -71 8 0.0 32 8 178.2 250 9 0.0 37 9 108.9 -875 15 13 10 0.0 36 10 69.3 -500 11 0.0 31 11 79.2 -482 12 1.0 39 12 128.7 -375 12 13 3.0 43 13 168.3 -571 14 0.0 33 14 89.1 -393 14 11 15 1.0 49 15 59.4 -589 16 1.0 33 16 79.2 -554 7

17 0.0 41 17 19.8 -304 18 0.0 30 18 99.0 -393 8 9 19 0.0 35 19 49.5 -661 10 20 1.0 38 20 79.2 -679 21 21 6 22 22 23 23 24 24 4 2

25 25 3

26 26 27 27 5 1

28 28 29 29 30 30 31 31 32 32 33 33 Box 3638-004 34 34 Bkg Bkg Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due Comments (cpm) (cpm) Key B-10 LC 04-Sep-21 2929 111575 0.350 0.247 0.16 35.97 N/a 10/5/2021 Used concrete background from LC 04-Sep-21 43-93/2360 227244/PR391107 0.101 0.05 0.8 105.8 N/a 8/23/2022 A/S Location June 2021 surveys. *-* Boundary Repeat survey after waste Smear containers removed. Dose Rate _______ /hr Direct Reading Reviewed By: Scott Hay Date: 22-Oct-21 CPM/direct frisk Grab Sample

Survey Form Location: Basement Survey RWP# NA Survey # arickSt-2021-B-10 Free releas Unrestriced release Page 2 of 9 Site: Varick Street Type:

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

No. No.

1 0.0 35 1 0.0 -321 2 0.0 38 2 -29.7 429 3 0.0 43 3 -29.7 232 4 0.0 31 4 0.0 161 2 1 5 0.0 46 5 -19.8 -339 6 1.0 38 6 -19.8 -54 7 0.0 37 7 0.0 125 8 0.0 31 8 -9.9 -196 9 1.0 42 9 -9.9 -393 Hallway from 10 1.0 34 10 9.9 -250 office to B10 11 11 12 12 13 13 14 14 3 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 4 27 27 28 28 5 6 7 8 9 29 29 30 30 31 31 10 32 32 Room B10 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 Bkg Bkg Comments Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg Cal. Due (cpm) (cpm) Key Hallway LC 04-Sep-21 2929 111575 0.350 0.247 0.16 35.97 N/a 10/5/2021 Used concrete background from LC 04-Sep-21 43-93/2360 227244/PR391107 0.101 0.05 0.8 105.8 N/a 8/23/2022 A/S Location June 2021 surveys. *-* Boundary Repeat survey after waste Smear containers removed. Dose Rate _______ /hr Direct Reading Reviewed By: Scott Hay Date: 22-Oct-21 CPM/direct frisk Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-001 Release Survey pg. 3 of 9 CPM/100cm 2 Static Smears No. No.

1 1 1 33 2 2 1 37 3 3 0 31 SIDE 1 TOP 4 4 5 5 6 6 7 7 8 8 3 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 2

16 16 DPM/100cm 2 Static Smears No. No.

1 1 2.6 27 2 2 2.6 43 3 3 -0.3 19 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 A/S Location 10 10 *-* Boundary 11 11 Smear 12 12 Dose Rate in µR/hr 13 13

• Direct Reading CPM/direct frisk 14 14 Reviewed By: Date:

15 15 Grab Sample 16 16 Static and smears were collected from the same location.

Container 001 Dose Rates Ranged: 10-12 µR/hr on contact

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-002 Release Survey pg. 8 of 9 CPM/100cm 2 Static Smears No. No.

1 1 3 31 1

2 2 1 33 3 3 0 37 4 4 5 5 6 6 7 7 8 8 3

9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 16 16 2 DPM/100cm 2 Static Smears No. No.

1 1 8.3 19 2 2 2.6 27 3 3 -0.3 43 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-003 Release Survey pg. 5 of 9 CPM/100cm 2 Static Smears No. No.

1 1 0 35 2 2 0 25 1 3 3 0 30 4 4 5 5 6 6 7 7 3

8 8 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 2 16 16 DPM/100cm 2 Static Smears No. No.

1 1 -0.3 35 2 2 -0.3 -6 3 3 -0.3 15 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-004 Release Survey pg. 7 of 9 CPM/100cm 2 Static Smears No. No.

1 1 0 45 1 2 2 2 41 3 3 0 39 4 4 5 5 6 6 7 7 3

8 8 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 16 16 2 DPM/100cm 2 Static Smears No. No.

1 1 -0.3 75 2 2 5.4 59 3 3 -0.3 51 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-005 Release Survey pg. 6 of 9 CPM/100cm 2 Static Smears No. No.

1 1 2 38 2 2 1 36 1 3 3 0 41 4 4 5 5 6 6 7 7 3

8 8 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 16 16 DPM/100cm 2 2 Static Smears No. No.

1 1 5.4 47 2 2 2.6 39 3 3 -0.3 59 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-006 Release Survey pg. 4 of 9 CPM/100cm 2 Static Smears No. No.

1 1 0 33 1 SIDE 2 2 0 38 TOP 3 3 1 39 4 4 5 5 6 6 7 7 3

8 8 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 2 16 16 DPM/100cm 2 Static Smears No. No.

1 1 -0.3 27 2 2 -0.3 47 3 3 2.6 51 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

Location: Basement Project Name: Survey # Survey Type:

Site: 201 Varick Street, NewYork City, NY Characterization of Drain Piping DP-OUT-007 Release Survey pg. 9 of 9 CPM/100cm 2 Static Smears No. No.

1 1 0 43 1 2 2 2 41 3 3 0 39 4 4 5 5 6 6 7 7 8 8 3 9 9 10 10 4 11 11 5

12 12 13 13 14 14 15 15 16 16 2 2

DPM/100cm Static Smears No. No.

1 1 -0.3 67 2 2 5.4 59 3 3 -0.3 51 4 4 5 5 6 6 7 7 8 8 Surveyed By: Date: Instrument Serial # Eff. Eff. Bkg. Bkg Bkg Cal. Due Key 9 9 JC 04-Sep-21 Model 2929 271413 0.1 26.4 NA 14-Jun-22 10 10 A/S Location 11 11 *-* Boundary 12 12 Smear 13 13 Dose Rate in µR/hr 14 14 Reviewed By: Date:

• Direct Reading CPM/direct frisk 15 15 16 16 Grab Sample

PERSONNEL AIR MONITORING DATA CALCULATION LOG (Rev 7)

Counting Instrument: 2929 Detector: 43-10-1 Cal. Date: 6/14/2021 Serial #: 111575 Serial #: PR113193 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 0.3500 Th-230 5633-05 14,100 2/25/2013 7.54E+04 14099 10 10 Isotope Occup. DAC Isotope DAC Beta 0.2470 Tc-99 5649-06 14,300 9/24/2012 2.11E+05 14300 10 10 Ra-226 3.00E-10 Sr-90 2.00E-09 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)

Andrew Paden 8/21/21 8:21 8/21/21 11:24 08/24/21 183 2.5 11 364 0.16 36 1.00 3 2 2.64E-12 1.59E-12 0.0 0.0 2.42E-12 3.63E-11 Landen Collins 8/24/21 13:00 8/24/21 16:50 08/26/21 230 2.5 5 378 0.16 36 1.00 1 7 7.61E-13 5.71E-12 0.0 0.0 1.92E-12 2.89E-11 Andrew Paden 8/25/21 8:37 8/25/21 17:05 08/26/21 508 2.5 7 342 0.16 36 1.00 2 -7 5.47E-13 -2.58E-12 0.0 0.0 8.71E-13 1.31E-11 Jerimiah Everett 8/26/21 8:30 8/26/21 16:30 08/27/21 480 2.5 5 410 0.5 35.6 1.00 0 22 0.00E+00 8.21E-12 0.0 0.0 1.41E-12 1.38E-11 Landen Collins 8/27/21 1045 8/27/21 15:45 08/30/21 300 2.5 10 411 0.2 33.7 1.00 2 30 1.37E-12 1.80E-11 0.0 0.0 1.59E-12 2.14E-11 Andrew Paden 8/30/21 11:00 8/30/21 16:50 08/31/21 350 2.5 9 366 0.5 35.5 1.00 1 4 5.88E-13 2.29E-12 0.0 0.0 1.93E-12 1.88E-11 Andrew Paden 9/1/21 8:30 9/1/2021 15:35:00 PM 09/03/21 425 2.5 7 358 0.2 34.6 1.00 1 5 6.06E-13 2.06E-12 0.0 0.0 1.13E-12 1.53E-11 Dennis Remmacher 9/3/21 9:40 9/3/21 17:00 09/04/21 440 2.5 12 361 0.1 35.8 1.00 3 1 1.29E-12 4.97E-13 0.0 0.0 8.61E-13 1.50E-11 1 of 1

GENERAL/EFFLUENT AIRBORNE CONCENTRATION LOG (Rev 7)

Counting Instrument: 2929 Detector: 43-10-1 Cal. Date: 6/14/2021 Serial #: 111575 Serial #: PR113193 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 0.3500 Th-230 5633-05 14,100 2/25/2013 7.54E+04 14099 10 10 Isotope DAC /Effluent Isotope /Effluent Beta 0.2470 Tc-99 5649-06 14,300 9/24/2012 2.11E+05 14300 10 10 Ra-226 9.00E-13 Sr-90 6.00E-12 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 General Area Room B10 8/24/21 7:05 8/24/21 16:45 08/26/21 580 50.0 37 530 0.30 32.50 1.00 13 83 2.00E-13 1.29E-12 0.22 0.21 4.78E-14 5.45E-13 General Area Room B10 8/25/21 8:37 8/25/21 15:05 08/27/21 508 85.0 50 543 0.50 35.60 1.00 17 76 1.79E-13 7.90E-13 0.20 0.13 3.91E-14 3.82E-13 General Area Room B10 8/26/21 8:30 8/26/21 16:30 08/27/21 480 85.0 41 153 0.50 35.60 1.00 14 -82 1.52E-13 -9.07E-13 0.17 -0.15 4.14E-14 4.05E-13 General Area Room B10 8/26/21 8:30 8/26/21 16:30 08/30/21 480 85.0 3 382 0.20 33.70 1.00 1 18 5.99E-15 2.01E-13 0.01 0.03 2.93E-14 3.94E-13 General Area Room B10 8/27/21 1045 8/27/21 15:45 08/30/21 300 85.0 12 400 0.2 33.7 1.00 4 26 6.86E-14 4.51E-13 0.08 0.08 4.69E-14 6.30E-13 General Area Room B10 8/30/21 10:15 8/30/21 16:10 09/03/21 355 80.0 10 424 0.20 34.60 1.00 3 32 4.98E-14 5.01E-13 0.06 0.08 4.21E-14 5.73E-13 General Area Room B10 8/31/21 08:#0 8/#1/21 16:50 09/03/21 500 80.0 16 410 0.20 34.60 1.00 5 26 6.05E-14 2.92E-13 0.07 0.05 2.99E-14 4.07E-13 General Area Room B10 9/1/21 8:30 9/1/21 15:35 09/04/21 425 80.0 8 373 0.10 35.80 1.00 3 6 3.56E-14 8.05E-14 0.04 0.01 2.79E-14 4.87E-13 General Area Room B10 9/3/21 9:40 9/3/2021 17:00:00 PM 09/04/21 440 80.0 28 414 0.10 35.80 1.00 10 23 1.29E-13 2.90E-13 0.14 0.05 2.69E-14 4.70E-13 1 of 1

PERSONNEL AIR MONITORING DATA CALCULATION LOG (Rev 7)

Counting Instrument: 2929 Detector: 43-10-1 Cal. Date: 6/14/2021 Serial #: 111575 Serial #: PR113193 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 0.3500 Th-230 5633-05 14,100 2/25/2013 7.54E+04 14099 10 10 Isotope Occup. DAC Isotope DAC Beta 0.2470 Tc-99 5649-06 14,300 9/24/2012 2.11E+05 14300 10 10 Ra-226 3.00E-10 Sr-90 2.00E-09 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)

Andrew Paden 8/21/21 8:21 8/21/21 11:24 08/24/21 183 2.5 11 364 0.16 36 1.00 3 2 2.64E-12 1.59E-12 0.0 0.0 2.42E-12 3.63E-11 Landen Collins 8/24/21 13:00 8/24/21 16:50 08/26/21 230 2.5 5 378 0.16 36 1.00 1 7 7.61E-13 5.71E-12 0.0 0.0 1.92E-12 2.89E-11 Andrew Paden 8/25/21 8:37 8/25/21 17:05 08/26/21 508 2.5 7 342 0.16 36 1.00 2 -7 5.47E-13 -2.58E-12 0.0 0.0 8.71E-13 1.31E-11 Jerimiah Everett 8/26/21 8:30 8/26/21 16:30 08/27/21 480 2.5 5 410 0.5 35.6 1.00 0 22 0.00E+00 8.21E-12 0.0 0.0 1.41E-12 1.38E-11 Landen Collins 8/27/21 1045 8/27/21 15:45 08/30/21 300 2.5 10 411 0.2 33.7 1.00 2 30 1.37E-12 1.80E-11 0.0 0.0 1.59E-12 2.14E-11 Andrew Paden 8/30/21 11:00 8/30/21 16:50 08/31/21 350 2.5 9 366 0.5 35.5 1.00 1 4 5.88E-13 2.29E-12 0.0 0.0 1.93E-12 1.88E-11 Andrew Paden 9/1/21 8:30 9/1/2021 15:35:00 PM 09/03/21 425 2.5 7 358 0.2 34.6 1.00 1 5 6.06E-13 2.06E-12 0.0 0.0 1.13E-12 1.53E-11 Dennis Remmacher 9/3/21 9:40 9/3/21 17:00 09/04/21 440 2.5 12 361 0.1 35.8 1.00 3 1 1.29E-12 4.97E-13 0.0 0.0 8.61E-13 1.50E-11 1 of 1

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT J Analytical Summary Tables GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

Table J-2. Summary of Results for Radionuclides - 4th Floor Removed Piping (B-25 Boxes) at 201 Varick Street Location ID: 4FR-50 4FR-51 4FR-76 4FR-128 4FR-128 4FR-131 4FR-168 4FR-168 B-25 Box ID: 3638-002 3638-002 3638-002 3638-007 3638-001 3638-001 3638-001/3638-007 3638-001/3638-007 Sample Name: 4FR-50-001 4FR-51-001 4FR-76-001 4FR-128-001 4FR-128-002 4FR-131-001 4FR-168-001 DUP-09022021 Date Sampled: 9/3/2021 9/3/2021 9/3/2021 9/2/2021 9/2/2021 9/2/2021 9/2/2021 9/2/2021 Parent Sample Name: 4FR-168-001-09022021 Analyte Unit Result Uncert Qual Result Uncert Qual Result Uncert Qual Result Uncert Qual Result Uncert Qual Result Uncert Qual Result Uncert Qual Result Uncert Qual Alpha Spectroscopy (A-01-R MOD)

Plutonium-238 pCi/g 0.488 0.122 1.15 0.209 4.60 0.380 0.480 0.140 0.120 0.0584 0.706 0.152 9.59 0.979 19.5 1.84 Plutonium-239/240 pCi/g < 0.0457 0.0336 U < 0.0990 0.0267 U 0.226 0.0846 < 0.0575 0.0203 U < 0.0460 0.0200 U < 0.0436 0.0351 U 0.425 0.124 0.440 0.133 Thorium-228 pCi/g < 0.779 0.468 U 0.730 0.447 0.745 0.263 0.688 0.483 < 0.972 0.543 U < 0.266 0.187 U < 0.390 0.259 U 0.790 0.262 Thorium-230 pCi/g 0.704 0.579 < 0.437 0.340 U 0.790 0.274 0.699 0.462 < 0.848 0.495 U 1.24 0.355 0.539 0.329 1.40 0.354 Thorium-232 pCi/g < 0.324 0.236 U 0.315 0.266 1.03 0.280 0.864 0.452 < 0.700 0.341 U 0.516 0.214 0.269 0.206 0.749 0.240 Uranium-234 pCi/g 20.2 0.914 0.555 0.143 6.65 0.524 0.261 0.108 0.272 0.0996 1.01 0.203 1.91 0.299 7.07 0.859 Uranium-235 pCi/g 1.05 0.234 < 0.0762 0.0445 U 0.304 0.125 < 0.0365 0.0344 U < 0.0320 0.0213 U < 0.0570 0.0415 U 0.0853 0.0631 0.114 0.0903 Uranium-238 pCi/g 21.1 0.935 0.402 0.118 6.43 0.514 0.395 0.129 0.344 0.113 1.29 0.232 0.765 0.172 2.03 0.374 Gamma Spectroscopy (GA-01-R MOD)

Cesium-137 pCi/g < 0.0586 0.0335 U < 0.0730 0.0426 U 0.223 0.0768 < 0.0795 0.0423 U < 0.0838 0.0489 U 0.227 0.0817 0.190 0.0671 < 0.141 0.0838 U Radium-226 pCi/g 0.260 0.0994 < 0.342 0.127 U 0.557 0.174 0.237 0.0865 0.241 0.126 1.16 0.274 0.517 0.197 0.525 0.165 Thorium-232 pCi/g 0.174 0.0868 0.285 0.150 1.52 0.274 0.229 0.159 0.282 0.210 0.484 0.182 0.449 0.263 1.07 0.259 Uranium-235 pCi/g 0.915 0.297 < 0.615 0.244 U < 1.56 0.406 U < 0.747 0.108 U 0.426 0.209 < 0.876 0.136 U < 1.38 0.600 U < 1.09 0.542 U Uranium-238 pCi/g 9.47 1.09 < 1.67 0.375 U 3.53 1.12 < 1.70 0.364 U < 1.57 0.664 U 1.68 0.791 < 1.46 1.15 U 2.06 0.722 Nickel (ST-RC-0055)

Nickel-63 pCi/g < 7.43 4.33 U < 7.15 4.22 U < 7.30 4.29 U < 8.83 4.99 U < 7.30 4.23 U 4.99 1.85 9.55 5.01 < 3.00 1.74 U Strontium (SR-03-RC MOD)

Total Beta Strontium pCi/g < 0.258 0.166 U < 0.696 0.389 U 0.252 0.154 0.299 0.162 < 0.225 0.136 U < 0.222 0.144 U < 0.217 0.135 U 0.582 0.197 Technetium (Tc-02-RC)

Technetium-99 pCi/g < 0.529 0.291 U < 0.516 0.287 U < 0.647 0.340 U < 0.543 0.295 U < 0.556 0.297 U < 0.662 0.358 U < 0.683 0.376 U < 0.975 0.525 U Notes:

pCi/g = picocuries per gram.

Qual = Qualifier Uncert = Uncertainty Laboratory Qualifier:

U = Undetected at the Limit of Detection.

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This page intentionally left blank FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 ATTACHMENT L Photographic Log - Basement In-Place Drain Piping Locations GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

FINAL DATA REPORT Characterization of Drain Piping In-Place Basement Piping, Removed 4th Floor Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, and Removed 3rd and 5th Floor Piping 201 Varick Street, New York City, New York July 2022 This Page Intentionally Left Blank GS-03-P-15-AZ-D-0015; 47PC0220F0032 EA Engineering, P.C. and its affiliate EA Science and Technology

APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 1: Basement sample location B-001 (Basement Room B-12). Photo 2: Newly replaced pipe cleanout cap at Basement sample location B-001.

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APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 3: Basement sample location B-002 (Basement Room B-17).

Photo 4: Replaced pipe cleanout cap at Basement sample location B-002.

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APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 5: Basement sample location B-003a (Basement Room B-25b).

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APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 6: Basement sample location B-003b (adjacent to Basement Room B-30).

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APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 7: Basement sample location B-004 (Basement Room Photo 8: Replaced pipe cleanout cap at Basement 1326). sample location B-003.

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APPENDIX L - PHOTOGRAPHIC LOG Basement In-Place Drain Piping Locations Data Report for Characterization of Drain Piping - In-Place Basement Piping and 4th Floor Removed Piping in B-25 Boxes 3638-001, 3638-002, 3638-004, 3638-006, and 3638-007, 201 Varick Street, New York City, New York Photo 9: Basement sample location B-005 (Basement Room B-03).

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