ML22122A235
| ML22122A235 | |
| Person / Time | |
|---|---|
| Site: | 07000925 |
| Issue date: | 05/02/2022 |
| From: | Lux J Environmental Properties Management |
| To: | Davis P, Robert Evans, James Smith Document Control Desk, Office of Nuclear Material Safety and Safeguards, State of OK, Dept of Environmental Quality (DEQ) |
| References | |
| Download: ML22122A235 (36) | |
Text
May 2, 2022 Mr. James Smith U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2738 Mr. Paul Davis Oklahoma Department of Environmental Quality 707 North Robinson Oklahoma City, OK 73101 Mr. Robert Evans U.S. Nuclear Regulatory Commission 1600 East Lamar Blvd; Suite 400 Arlington, TX 76011-4511 Re: Docket No. 07000925; License No. SNM-928 Cimarron Environmental Response Trust Uranium Daughters in Groundwater
Dear Sirs:
Solely as Trustee for the Cimarron Environmental Response Trust (CERT), Environmental Properties Management LLC (EPM) submits herein information on the potential presence of certain radionuclides in groundwater at the Cimarron site.
In a letter dated August 11, 2021, the U. S. Nuclear Regulatory Commission (NRC) requested information regarding the potential presence of daughter radionuclides in groundwater. On November 23, 2021, EPM provided information on the daughters of U-235 and U-238 that may be present in groundwater.
EPM provided analytical results for groundwater samples collected in October (Attachments 1 and 2) to the NRC and the DEQ in a December 1, 2021, email. EPM further discussed the presence (of lack thereof) of uranium daughters in groundwater at the Cimarron site.
In a letter dated January 19, 2022, the Oklahoma Department of Environmental Quality (DEQ) stated that the information provided by EPM in the December 1, 2021, email did not mention U-234 (as a daughter of uranium) and asked if it is reasonable to state that the U-234 was already present in the feedstock received by the facility.
The intent of this letter is to present a fuller explanation of our understanding regarding daughter radionuclides in site groundwater and to respond to the DEQs question regarding the source of the U-234 detected in site groundwater.
9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com
U-234 in the Uranium Feedstock Purified enriched uranium was received by the Cimarron facility as gaseous uranium hexafluoride (UF6). The ratio of uranium isotopes in the feedstock varied as the U-235 enrichment varied. Enrichment is expressed in terms of the weight percent (wt. %) of the mass of U-235 relative to the mass of all uranium isotopes. Attachment 3 presents the percentage of the total mass of uranium for all three uranium isotopes as enrichment increases.
As enrichment increases, the total activity per gram of total uranium increases. Attachment 3 shows that the activity per gram of 5% enriched uranium is over 31/2 times the activity per gram of natural uranium (0.711 wt. % U-235). Based on the specific activity of each uranium isotope, the activity percentage for each isotope was calculated.
The Cimarron facility received UF6 with a wide range of enrichment values. In 2017-2018, Enercon Services, Inc. evaluated the enrichment of groundwater in areas where the concentration of uranium exceeds the NRC criterion for groundwater. Enrichment values varied from 1.3% in Burial Area #1 (BA1) to 2.9% in the WAA U>DCGL remediation area.
Looking at the graph in Attachment 3, at 1.3% enrichment, 100 pCi/g of total uranium activity in the feedstock would consist of approximately 60 pCi/g of U-234, 3 pCi/g of U-235, and 37 pCi/g of U-238. At 2.9% enrichment, 100 pCi/g of total uranium activity in the feedstock would consist of approximately 75 pCi/g of U-234, 4 pCi/g of U-235, and 21 pCi/g of U-238. This means that the feedstock received by the Cimarron facility contained U-234 at significantly higher activity concentrations than that of U-238, although the mass concentration of U-238 would have consistently been above 95% of the total uranium mass concentration.
Daughter Radionuclides in the Feedstock The facility received chemically purified uranium, which means that when the UF6 was produced it did not contain any daughter isotopes. Attachment 4 presents the decay chains for U-235 and U-238. These charts provide the half-lives of each radionuclide in the decay chain. After seven half-lives, the activity of a daughter radionuclide would become essentially equal to the activity of the parent. The decay chain for U-235 indicates that only one week would be required for Th-231 to achieve the same activity as U-235, whereas it would take over two centuries for Pa-231 to achieve that activity.
The decay chain for U-238 indicates that approximately seven months would be required for Th-234 (and then only minutes for Pa-234) to reach equilibrium with U-238, but it would take most of two millennia for U-234 to achieve that same activity. With the passage of only five decades, the activity concentration of U-234 generated from the decay of U-238 would be less than 0.01%
of the activity concentration of the U-238. Consequently, any U-234 present in groundwater (excluding naturally occurring uranium) is the U-234 that was received in the feedstock.
9400 Ward Parkway
- Kansas City, MO 6411 4405-642-5152
- jlux@envpm.com Page 2 of 5
If we assume that the licensed material was still on site for at least six months after the production of the UF6, then the activity concentration of Th-234 and Pa-234 would be the same as the U-238, and the activity concentration of Th-231 would be the same as the U-235.
With a half-life of over 75,000 years, Th-230 would not achieve equilibrium with its parent U-234 for several hundred thousand years; hence, similar to the above description of U-234, the activity concentration of Th-230 generated from the decay of U-234 would be less than 0.01% of the activity concentration of U-234.
Daughter Radionuclides in Groundwater It is important to understand that the presence of uranium in groundwater does not mean that even its short-lived daughters are present in the groundwater. When uranium decays by alpha emission, the thorium daughters that are formed are not chemically identical to their uranium parent. Their presence in groundwater would be a function of the solubility of the thorium compound that is created. If the distribution coefficient (Kd) for the thorium compound that forms when uranium undergoes decay is significantly higher than that of the uranium compound, the thorium will sorb onto soil particles and no longer remain in solution.
The activity concentration of uranium in groundwater in the WAA U>DCGL remediation area has rarely exceeded 200 pCi/L total uranium since 2010. At 2.9% enrichment, 200 pCi/L total uranium would yield approximately 150 pCi/L U-234, 8 pCi/L U-235, and 42 pCi/L U-238. If the thorium and protactinium daughters were in equilibrium (in the groundwater) with the parent uranium isotopes, you would expect to have 8 pCi/L Th-231 and 42 pCi/L Th-234 and Pa-234 in the groundwater. With detection limits of 100 pCi/L for Th-231 and Pa-231, and 400 pCi/L for Th-234, none of these could be detected.
Burial Area #1 is the only remediation area in which uranium activity concentrations are high enough that daughter radionuclides may be detected. Four monitor wells that were to be sampled during the 4th quarter 2021 redox sampling event routinely yield over 700 pCi/L total uranium; two routinely yield over 1,600 pCi/L total uranium. At 1.3% enrichment, 1,600 pCi/L total uranium would yield approximately 960 pCi/L U-234, 48 pCi/L U-235, and 592 pCi/L U-238. If (in the groundwater) the thorium and protactinium daughters were in equilibrium with the parent uranium isotopes, you would expect to have 48 pCi/L Th-231, 592 pCi/L Th-234, and 592 pCi/L Pa-234 in the groundwater. Th-231 would not be detectable at 48 pCi/L, but both Th-234 and Pa-234 would be.
The half-life of Pa-234 is less than 2 minutes, and the groundwater samples were analyzed for thorium and protactinium twelve days after the sample was collected. If any groundwater sample contained over 100 pCi/L Th-234, the concentration of Pa-234 would have been above its detection limit. Attachments 1 and 2 show that none of the daughter radionuclides were detected in any of the groundwater samples, so no sample could have contained over 100 pCi/L Th-234.
9400 Ward Parkway
- Kansas City, MO 6411 4405-642-5152
- jlux@envpm.com Page 3 of 5
Conclusion None of the uranium daughters were detected in any of the groundwater samples submitted for isotopic analysis. The data demonstrates that the short-lived daughters of uranium can at most be present in groundwater at the Cimarron site at a small fraction of the concentration of the uranium parent radionuclides.
The uranium in recovered groundwater will be captured by ion exchange resin, and it is anticipated that the ion exchange resin will continue to adsorb uranium for several months between change-outs. The daughter radionuclides may be present in the ion exchange resin; if the resin does adsorb some or all of the daughter radionuclides, it is unlikely that they will be present in effluent at detectable concentrations. If the resin does not capture any of the daughter radionuclides, they will not be detectable in the effluent.
Please call me at (405) 642-5152, email me at jlux@envpm.com, or write should you have questions or desire clarification.
Sincerely, Jeff Lux, P.E.
Project Manager cc: Michael Broderick, Oklahoma Department of Environmental Quality NRC Public Document Room 9400 Ward Parkway
- Kansas City, MO 6411 4405-642-5152
- jlux@envpm.com Page 4 of 5
ATTACHMENT 1 GEL LABORATORY REPORT NOVEMBER 11, 2021 9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com
November 11, 2021 Mr. Jeff Lux Environmental Properties Management, LLC 615 N. Hudson Suite 200 Oklahoma City, Oklahoma 73102 Re: Uranium Daughter Activities Evaluation Work Order: 559068
Dear Mr. Lux:
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the following analytical results for the sample(s) we received on October 15, 2021. This original data report has been prepared and reviewed in accordance with GELs standard operating procedures.
Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GELs accreditations and certifications can be found on our website at www.gel.com.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 4289.
Sincerely, PM_SIGN_HERE Grace Bodiford for Julie Robinson Project Manager Purchase Order: 176069 Chain of Custody: 2021-059 Enclosures
Table of Contents Case Narrative....................................................................................1 Chain of Custody and Supporting Documentation.........................4 Laboratory Certification....................................................................7 Radiological Analysis.........................................................................9 Case Narrative..........................................................................10 Sample Data Summary............................................................14 Quality Control Summary.......................................................19
Case Narrative Page 1 of 22 SDG: 559068
CASE NARRATIVE for Burns & McDonnell Uranium Daughter Activities Evaluation SDG:559068 November 11, 2021 Laboratory Identification:
GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at GEL Laboratories LLC, Charleston, South Carolina on October 15, 2021 for analysis. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample receipt.
Items of Note There are no additional items of note concerning this SDG.
Sample Identification The laboratory received the following samples:
Laboratory ID Client ID 559068001 TMW-13 559068002 02W02 559068003 02W01 559068004 TMW-09 Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package.
Data Package The enclosed data package contains the following sections: Case Narrative, Chain of Custody, Cooler Receipt Checklist, Data Package Qualifier Definitions and data from the following fractions: Radiochemistry.
Page 2 of 22 SDG: 559068
This data package, to the best of my knowledge, is in compliance with technical and administrative requirements.
Grace PM_SIGN_HERE Bodiford for Julie Robinson Project Manager Page 3 of 22 SDG: 559068
Chain of Custody and Supporting Documentation Page 4 of 22 SDG: 559068
Page 5 of 22 s7 - I U Lo c5 ! J I U.Jj~ N l~
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST coc # : 2021-059 SHIP TO: SHIP FROM: ANALYSIS REQUESTED Company Name: GEL Laboratories LLC SDG: 559068 Address: 2040 Savage Road Environmental Properties Management ~
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Address: Charleston, SC 29407 100 North Highway 74 0
Ol 0 Guthrie, OK 73044 0 Contact Person: Julie Robinson < (")
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I ATT EST THAT THE PROPER FIELD SAMPLING PROCEDURES WERE USED DURING THE (") ~
Contact Person: Jeff Lux N co COLLECTION OF THESE SAMPLES. ~ ro (")
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TMW-13 10/13/2021 945 1 p 2L X HN03 y X TMW-13 10/13/2021 945 1 p 500ml X HN03 y X 02W02 10/13/2021 1125 1 p 2L X HN03 y X 02W02 10/13/2021 1125 1 p 500ml X HN03 y X 02W01 10/13/2021 1450 1 p 2L X HN03 y X 02W01 10/13/2021 1450 1 p 500ml X HN03 y X TMW-09 10/13/2021 1550 1 p 2L X HN03 y X TMW-09 10/13/2021 1550 1 p 500 ml X HN03 y X Potential Hazardous Characteristics Sample Disposal Non-Haz 0 RCRA D001,2&3, or 4 0 RCRA Listed D Radioactive 0 Unknown Disposal Lab O Return to Client 0 Holding pending further instructions PROJECT NAME: Uranium Daughter Activities Evaluation PO#: 176069 THIS SAMPLE MEETS ALL APPROPRIATE RADIOLOGICAL REQUIREMENTS: HPINITIAL: BA NOTES:
TIME: Distribution:
RELINQUISHED BY SAMPLER: DATE: TIME: RECEIVED BY : DATE:
Standard GEL EDD & GEL lab report in .pdf format to:
-~ ------tvf!tt/u ---------lG,w - 517?,,7~ - -)QJ)s:J;i.{ .ll ~fSs - jlux@envpm.com
- slawrence@biirnsmcifcom
- jmaisler@enercon.com RELINQUISHED BY : DATE: TIME: ~DBY : DATE: TIME:
EQulS EDD to :
- jlux@envpm.com
- dhorne@burnsmcd.com PAGE OF DOCUMENT C O N T R O L ~ DATE: / ~ ; ; ~ /
Rev. 1 rQAReview
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~ LaiJoratories u.c SAMPLE RECEIPT & REVIEW .FORM i Client: /~,Ztt.} SDG/AR/COC/Work Order: c:;~9{~(p~ "i' Received 13 v: BE Date Receh*c<l: Jo/;.~/;)_,
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- If Net Counts> lllOcpm on samples not marked "radioactive". contact the Radiation Saf~fy Group for further investigation.
II AiShinped as a DOT Haznrdouf/
\ Hazard Class Shipped: UN#:
If UN2910. Is the Radioactive Shipment Su1ey Compliant'? Yes.,-- No---1 I\
ll B) Did the client designate the samples nrc to be received M radioactive?
\ COC notation or rndioactive stickers on containers equal clicm <lcsignation.
JL C) Did the RSO classify the samples as radioactive? \
Maximnm Net Counts Obse,ved*' (Observed Counts - Arca Background Counls):
Classified a.~: Rad I Rad 2 Rad 3 ~ I:
mR/Hr COC notation or hazard labels on containers equal client designation.
D) Did the client designate samr,lcs arc hazardous? I'- 11 If Dor Eis yes. select Hazards below.
E) Did the RSO identifv oossible hazards"? I\ PCB"s Fl.unmablc foreign Soil RCRA Asbestos Beryllium o lj,er:
h Smnple Receipt Critcriu >- z 7- Comments/Quulifiers (Ret1uircd for Non-ConformiHg Items)
Shipping containers received intact anc.J Circle Applicable: Sc11l~ brokl!n Damaged cont:1incr U!aking contnincr Other (des<(ibc) ii I
scaled?
Chain of custody documents included
\ Circle Applicable: Clicnl contac1cd :rnd pro,idcd COC COC cr1!'nltd upon rccdpt I! ,.
2 with shipment? \ ~
\i il 3 Samples requiring colc.J preservation
\
Preservation Method: Wet lee lee Packs
!t.nll tcmpc:raturcs are rt:cordcd in Celsius D,y ice C}Other:
IIi' TEMP: --;;;__4 within (0 < 6 deg. C)?* ii Daily check performed anti passed on IR Tcmper:oturc De\'icC Serini #: tR2-21 "
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temperature gun'?
V Second:uy Tempcr.iture Device Serial /I (If Applicable): 11 11 Circle Applicabi<: Seals: broken L>amar,.ed comaincr Lc:1king container Other (describe) 5 Sample containers intact and scalec.J?
\ Sample ID's and Containers Affected:
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Samples requiring chemical preservation Ii1, 6
at proper pH? \ Jr Prt:scr\'ation added. Lotti:
lf*Yes, nrc Encores or Soil Kits prcsc111 forsolids? Yes_ No_ NA_(lf yes, tnk~l to vo,~* Freezer)
Ii Do liquid VOA vials contain ncid preservation? Yes_ No_ NA_(lfunknown.fselcct No)
- Du any samples require Volatile '
7 Arc liquid VOA vials free ofhcadspace? Yes_ No_ NA_ t Analysis?
Sample ID's ,rnd containers :1ffcctcd:
!D"s nnd tc.is affccied:
I '
8 Samples received within hole.Jing time?
\ i 9
Sample !D's otr COC match !D's on bottles? \
ID's and containers affcc1ed:
I I Date & time on COC match date & time Circle Applicable: No dates on containers No times on conlnincrs COC missing inf! Other (describe) 10 on bottles? \
Number of containers received match Circle Applicable: No container count on COC Other (describe) 11 numlicr intlicatec.l on COC'! \
Arc sample containers idcntifial.ile as 12 GEL orovided bv use uf GEL labels?
COC form is properly signet! in
'- Circle Applicable: Not relinquished Other (describe) 13 relinquished/received sections?
Comments (Use Continuation f'orm if needed):
I l I PM (or PMAl review: Initials .
I\.IILl .Y Da1c I (21 lcS I "C \
" Page _J of _J_ !
Page 6 of 22 SDG: 559068 GL-CHL-SR-001 Rev 7
Laboratory Certification Page 7 of 22 SDG: 559068
List of current GEL Certifications as of 11 November 2021 State Certification Alabama 42200 Alaska 17018 Alaska Drinking Water SC00012 Arkansas 880651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P3301500283, P3301500253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana CSC01 Kansas NELAP E10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904)
Maine 2019020 Maryland 270 Massachusetts MSC012 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NEOS2613 Nevada SC0001220211 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R158 Oklahoma 2019165 Pennsylvania NELAP 6800485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T1047042352119 Utah NELAP SC00012202136 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 8 of 22 SDG: 559068
Radiological Analysis Page 9 of 22 SDG: 559068
Case Narrative Page 10 of 22 SDG: 559068
Radiochemistry Technical Case Narrative Burns & McDonnell SDG #: 559068 Product: Alphaspec U, Liquid Analytical Method: DOE EML HASL-300, U-02-RC Modified Analytical Procedure: GL-RAD-A-011 REV# 28 Analytical Batch: 2191040 The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification 559068001 TMW-13 559068002 02W02 559068003 02W01 559068004 TMW-09 1204943045 Method Blank (MB) 1204943046 559068001(TMW-13) Sample Duplicate (DUP) 1204943047 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary:
There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable.
Product: Gammaspec, Gamma, Liquid Analytical Method: EPA 901.1 Analytical Procedure: GL-RAD-A-013 REV# 27 Analytical Batch: 2186917 The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification 559068001 TMW-13 559068002 02W02 559068003 02W01 559068004 TMW-09 1204934355 Method Blank (MB) 1204934356 559068001(TMW-13) Sample Duplicate (DUP) 1204934357 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Page 11 of 22 SDG: 559068
Data Summary:
There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable.
Qualifier Information Client Qualifier Reason Analyte Sample Sample Results are considered a false positive due to UI Thorium-234 559068004 TMW-09 high peak-width.
Results are considered a false positive due to UI Thorium-231 559068001 TMW-13 interference.
Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 12 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Qualifier Definition Report for CMRN001 Burns & McDonnell Client SDG: 559068 GEL Work Order: 559068 The Qualifiers in this report are defined as follows:
- A quality control analyte recovery is outside of specified acceptance criteria
UI Gamma Spectroscopy--Uncertain identification Review/Validation GEL requires all analytical data to be verified by a qualified data reviewer. In addition, all CLP-like deliverables receive a third level review of the fractional data package.
The following data validator verified the information presented in this data report:
Signature: Name: Theresa Austin Date: 11 NOV 2021
Title:
Group Leader Page 13 of 22 SDG: 559068
Sample Data Summary Page 14 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Environmental Properties Address : Management, LLC 615 N. Hudson Suite 200 Oklahoma City, Oklahoma 73102 Report Date: November 11, 2021
Contact:
Mr. Jeff Lux Project: Uranium Daughter Activities Evaluation Client Sample ID: TMW-13 Project: CMRN00620 Sample ID: 559068001 Client ID: CMRN001 Matrix: Water Collect Date: 13-OCT-21 Receive Date: 15-OCT-21 Collector: Client Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd.
Rad Alpha Spec Analysis Alphaspec U, Liquid "As Received" Uranium-233/234 602 +/-21.8 1.84 +/-130 1.00 pCi/L BV1 11/10/21 1131 2191040 1 Uranium-235/236 38.4 +/-6.14 1.21 +/-10.2 1.00 pCi/L Uranium-238 364 +/-16.9 1.51 +/-79.3 1.00 pCi/L Rad Gamma Spec Analysis Gammaspec, Gamma, Liquid "As Received" Protactinium-234 U 24.4 +/-30.3 71.2 +/-42.6 pCi/L MXR1 10/25/21 0845 2186917 2 Thorium-231 UI 0.000 +/-108 107 +/-110 pCi/L Thorium-234 U 80.3 +/-311 585 +/-314 pCi/L The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, U-02-RC Modified 2 EPA 901.1 Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Uranium-232 Tracer Alphaspec U, Liquid "As Received" 2191040 30.1 (15%-125%)
Notes:
The MDC is a sample specific MDC.
TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 15 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Environmental Properties Address : Management, LLC 615 N. Hudson Suite 200 Oklahoma City, Oklahoma 73102 Report Date: November 11, 2021
Contact:
Mr. Jeff Lux Project: Uranium Daughter Activities Evaluation Client Sample ID: 02W02 Project: CMRN00620 Sample ID: 559068002 Client ID: CMRN001 Matrix: Water Collect Date: 13-OCT-21 Receive Date: 15-OCT-21 Collector: Client Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd.
Rad Alpha Spec Analysis Alphaspec U, Liquid "As Received" Uranium-233/234 418 +/-17.5 2.12 +/-88.9 1.00 pCi/L BV1 11/10/21 1131 2191040 1 Uranium-235/236 38.2 +/-5.91 1.13 +/-9.93 1.00 pCi/L Uranium-238 309 +/-15.1 1.71 +/-66.1 1.00 pCi/L Rad Gamma Spec Analysis Gammaspec, Gamma, Liquid "As Received" Protactinium-234 U -14.5 +/-26.3 49.0 +/-31.8 pCi/L MXR1 10/25/21 0845 2186917 2 Thorium-231 U 2.05 +/-77.5 128 +/-77.5 pCi/L Thorium-234 U -247 +/-321 577 +/-344 pCi/L The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, U-02-RC Modified 2 EPA 901.1 Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Uranium-232 Tracer Alphaspec U, Liquid "As Received" 2191040 30.7 (15%-125%)
Notes:
The MDC is a sample specific MDC.
TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 16 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Environmental Properties Address : Management, LLC 615 N. Hudson Suite 200 Oklahoma City, Oklahoma 73102 Report Date: November 11, 2021
Contact:
Mr. Jeff Lux Project: Uranium Daughter Activities Evaluation Client Sample ID: 02W01 Project: CMRN00620 Sample ID: 559068003 Client ID: CMRN001 Matrix: Water Collect Date: 13-OCT-21 Receive Date: 15-OCT-21 Collector: Client Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd.
Rad Alpha Spec Analysis Alphaspec U, Liquid "As Received" Uranium-233/234 1040 +/-35.3 3.22 +/-281 1.00 pCi/L BV1 11/10/21 1356 2191040 1 Uranium-235/236 74.2 +/-10.5 1.15 +/-22.4 1.00 pCi/L Uranium-238 604 +/-26.9 2.05 +/-164 1.00 pCi/L Rad Gamma Spec Analysis Gammaspec, Gamma, Liquid "As Received" Protactinium-234 U 3.89 +/-38.5 79.2 +/-38.8 pCi/L MXR1 10/25/21 0846 2186917 2 Thorium-231 U 77.6 +/-145 109 +/-145 pCi/L Thorium-234 U -222 +/-322 559 +/-342 pCi/L The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, U-02-RC Modified 2 EPA 901.1 Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Uranium-232 Tracer Alphaspec U, Liquid "As Received" 2191040 18.4 (15%-125%)
Notes:
The MDC is a sample specific MDC.
TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 17 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Environmental Properties Address : Management, LLC 615 N. Hudson Suite 200 Oklahoma City, Oklahoma 73102 Report Date: November 11, 2021
Contact:
Mr. Jeff Lux Project: Uranium Daughter Activities Evaluation Client Sample ID: TMW-09 Project: CMRN00620 Sample ID: 559068004 Client ID: CMRN001 Matrix: Water Collect Date: 13-OCT-21 Receive Date: 15-OCT-21 Collector: Client Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd.
Rad Alpha Spec Analysis Alphaspec U, Liquid "As Received" Uranium-233/234 950 +/-29.3 1.97 +/-216 1.00 pCi/L BV1 11/10/21 1356 2191040 1 Uranium-235/236 58.0 +/-8.08 1.61 +/-15.4 1.00 pCi/L Uranium-238 660 +/-24.4 1.74 +/-151 1.00 pCi/L Rad Gamma Spec Analysis Gammaspec, Gamma, Liquid "As Received" Protactinium-234 U -13.4 +/-47.6 84.7 +/-50.4 pCi/L MXR1 10/25/21 0854 2186917 2 Thorium-231 U -8.39 +/-95.9 165 +/-95.9 pCi/L Thorium-234 UI 0.000 +/-815 530 +/-843 pCi/L The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, U-02-RC Modified 2 EPA 901.1 Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Uranium-232 Tracer Alphaspec U, Liquid "As Received" 2191040 26.7 (15%-125%)
Notes:
The MDC is a sample specific MDC.
TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 18 of 22 SDG: 559068
Quality Control Summary Page 19 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: November 11, 2021 Client : Environmental Properties Management, LLC Page 1 of 3 615 N. Hudson Suite 200 Oklahoma City, Oklahoma
Contact:
Mr. Jeff Lux Workorder: 559068 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Alpha Spec Batch 2191040 QC1204943046 559068001 DUP Uranium-233/234 602 553 pCi/L 8.45 (0%-20%) BV1 11/10/21 13:56 Uncert: +/-21.8 +/-20.2 TPU: +/-130 +/-120 Uranium-235/236 38.4 32.7 pCi/L 16.2 (0%-20%)
Uncert: +/-6.14 +/-5.48 TPU: +/-10.2 +/-8.88 Uranium-238 364 339 pCi/L 7.03 (0%-20%)
Uncert: +/-16.9 +/-15.8 TPU: +/-79.3 +/-74.3 QC1204943047 LCS Uranium-233/234 26.0 pCi/L BV1 11/10/21 13:56 Uncert: +/-2.57 TPU: +/-4.32 Uranium-235/236 1.39 pCi/L Uncert: +/-0.692 TPU: +/-0.716 Uranium-238 27.1 28.4 pCi/L 105 (75%-125%)
Uncert: +/-2.67 TPU: +/-4.63 QC1204943045 MB Uranium-233/234 U -0.0464 pCi/L BV1 11/10/21 13:56 Uncert: +/-0.258 TPU: +/-0.258 Uranium-235/236 U 0.0245 pCi/L Uncert: +/-0.256 TPU: +/-0.256 Uranium-238 U 0.252 pCi/L Uncert: +/-0.351 TPU: +/-0.353 Rad Gamma Spec Batch 2186917 QC1204934356 559068001 DUP Protactinium-234 U 24.4 U -41.4 pCi/L 0 N/A MXR1 10/25/21 11:07 Uncert: +/-30.3 +/-45.0 TPU: +/-42.6 +/-68.1 Thorium-231 UI 0.000 U 43.4 pCi/L 0 N/A Uncert: +/-108 +/-106 TPU: +/-110 +/-106 Thorium-234 U 80.3 U 241 pCi/L 0 N/A Uncert: +/-311 +/-430 TPU: +/-434 Page 20 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 559068 Page 2 of 3 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2186917
+/-314 QC1204934357 LCS Americium-241 1.09E+05 1.18E+05 pCi/L 109 (75%-125%) MXR1 10/25/21 09:15 Uncert: +/-2070 TPU: +/-11100 Cesium-137 37800 39900 pCi/L 105 (75%-125%)
Uncert: +/-676 TPU: +/-3450 Cobalt-60 21400 22700 pCi/L 106 (75%-125%)
Uncert: +/-614 TPU: +/-2140 Protactinium-234 U 70.5 pCi/L Uncert: +/-1200 TPU: +/-1210 Thorium-231 U 93.4 pCi/L Uncert: +/-990 TPU: +/-991 Thorium-234 U -1060 pCi/L Uncert: +/-2650 TPU: +/-2700 QC1204934355 MB Protactinium-234 U 3.80 pCi/L MXR1 10/25/21 08:46 Uncert: +/-41.5 TPU: +/-41.7 Thorium-231 U 19.8 pCi/L Uncert: +/-45.4 TPU: +/-46.3 Thorium-234 U -185 pCi/L Uncert: +/-219 TPU: +/-238 Notes:
TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma).
The Qualifiers in this report are defined as follows:
- Analyte is a Tracer compound
< Result is less than value reported
> Result is greater than value reported BD Results are either below the MDC or tracer recovery is low FA Failed analysis.
H Analytical holding time was exceeded J See case narrative for an explanation J Value is estimated K Analyte present. Reported value may be biased high. Actual value is expected to be lower.
L Analyte present. Reported value may be biased low. Actual value is expected to be higher.
Page 21 of 22 SDG: 559068
GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 559068 Page 3 of 3 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time M M if above MDC and less than LLD M REMP Result > MDC/CL and < RDL N/A RPD or %Recovery limits do not apply.
N1 See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
UI Gamma Spectroscopy--Uncertain identification UJ Gamma Spectroscopy--Uncertain identification UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
- Indicates analyte is a surrogate/tracer compound.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary.
Page 22 of 22 SDG: 559068
ATTACHMENT 2 TABULATED DATA
SUMMARY
9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com
Cimarron Environmental Response Trust Evaluation of Uranium Daughters in Groundwater Monitor Well Activity TMW13 02W02 02W01 TMW09 (pCi/L)
Result Uncertainty Qual DL Result Uncertainty Qual DL Result Uncertainty Qual DL Result Uncertainty Qual DL U238 364 16.9 1.51 309 15.1 1.71 604 26.9 2.05 660 24.4 1.74 Th234 80.3 311 U 585 247 321 U 577 222 322 U 559 0 815 UI 530 Pa234 24.4 30.3 U 71.2 14.5 26.3 U 49 3.89 38.5 U 79.2 13.4 47.6 U 84.7 U235 38.4 6.14 1.21 38.2 5.91 1.13 74.2 10.5 1.15 58 8.08 1.61 Th231 0 108 UI 107 2.05 77.5 U 128 77.6 145 U 109 13.4 47.6 U 84.7 U234 602 21.8 1.84 418 17.5 2.12 1040 35.3 3.22 950 29.3 1.97 The detection limit for Th234 is too high relative to the U238 activities to tell us anything but Th234 was never detected.
Pa234 was never detected, but the detection limit (that was never reached) was a small fraction of the U238 activity listed below.
Notes:
TMW13 Pa234 DL:U238 Ratio 02W02 Pa234 DL:U238 Ratio 02W01 Pa234 DL:U238 Ratio TMMW09 Pa234 DL:U238 Ratio 0.20 0.16 0.13 0.13 The detection limit for Th231 is too high relative to the U234 activities to tell us anything but Th231 was never detected.
ATTACHMENT 3 DISTRIBUTION OF URANIUM ISOTOPES IN ENRICHED URANIUM 9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com
ATTACHMENT 3 DISTRIBUTION OF URANIUM ISOTOPES IN ENRICHED URANIUM Enrichment Percent Total Mass Specific Activity
(% U-235 by Mass) U-234 U-235 U-238 (pCi/µg) 0.711 0.005 0.711 99.284 U-234 6.19E+03 1 0.007 1 98.993 U-235 2.14E+00 2 0.013 2 97.987 U-238 3.30E-01 3 0.019 3 96.981 5 0.031 5 94.969 Above Data from Determination of Conservative U-235 Enrichment Levels for Groundwater at Cimarron Site Utilizing ICP-MS Data Collected December 2016 Through 2nd Quarter 2017, Revision 0. Enercon Services, Inc. August 2017.
Enrichment Activity (pCi/µg of Total U) Total U Activity (pCi/µg of Total U)
(% U-235 by Mass) U-234 U-235 U-238 (pCi/µg) U-234 U-235 U-238 0.711 31.0 1.5 32.8 65.2 47.4 2.3 50.2 1 43.3 2.1 32.7 78.1 55.5 2.7 41.8 2 80.5 4.3 32.3 117.1 68.7 3.7 27.6 3 117.6 6.4 32.0 156.0 75.4 4.1 20.5 5 191.9 10.7 31.3 233.9 82.0 4.6 13.4 U-234 % Activity 85.0 80.0
% of Total Uranium Activity 75.0 70.0 65.0 60.0 55.0 50.0 45.0 40.0 0 1 2 3 4 5 6 Enrichment (% U-235 by Mass)
ATTACHMENT 4 DECAY CHARTS FOR U-238 AND U-235 9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com