ML24319A267
| ML24319A267 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/14/2024 |
| From: | Markum T Tennessee Valley Authority |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| Download: ML24319A267 (1) | |
Text
Tennessee Valley Authority, Sequoyah Nuclear Plant, P.O. Box 2000, Soddy Daisy, TN 37384 November 14, 2024 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001
Subject:
Sequoyah Nuclear Plant, Discharge Monitoring Report (DMR) Quality Assurance Study 44 Final Report 2024 Attached is the Discharge Monitoring Report Quality Assurance Study 44 Final Report 2024 for Sequoyah Nuclear Plant.
Respectfully, Travis R. Markum Environmental Scientist
1 Markum, Travis R From:
Markum, Travis R Sent:
Thursday, November 14, 2024 3:37 PM To:
Barbara Loudermilk
Subject:
TN0026450 - DMR-QA Study 44 Test Results Attachments:
TN0026450 - DMR-QA Study 44 Test Results.pdf Ms.Loudermilk,
Please"ndaachedtheprovidergradedtestresultsandchecklistsforthe2024DMRQAStudy44Laboratory PerformanceEvaluaon.TheseresultswereobtainedbyTVASequoyahNuclearPlantandsuppornglaboratoriesas requiredbyNPDESPermitTN0026450.AlsoincludedaretheremedialPTstudyforOil&Greaseandcorrecveacon leerforlabNC00014.Letmeknowifyouhaveanyquesons.
Travis R. Markum Env. Scientist (Compliance)
Environmental Operations TVA Sequoyah Nuclear Plant PO Box 2000, OPS 5N Soddy Daisy, TN 37384
- 423-843-6714
- trmarkum@tva.gov NOTICE: This electronic message transmission contains information that may be TVA SENSITIVE, TVA RESTRICTED, or TVA CONFIDENTIAL. Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution, or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message.
EPA Form 6400-01 (Rev. 0-24). Previous editions are obsolete.
Page 14 United States Environmental Protection Agency Office of Enforcement and Compliance Assurance DMR-QA Study 44 (This data is collected under the authority of Section 308 of the Clean Water Act.)
OMB Control No. 2080-0021 Approval expires 08/31/2026 2024 Permittee Name NPDES Permit Number (State + 7-digit ID)
Permit Extension Identification of all CHEM, MICRO and WET laboratories who performed analyses for this permit Laboratory Name Laboratory Address U.S. EPA Lab Code Lab Analysis Check box(es) that apply Lab Type*
State-certified Lab**
Chem Micro WET
Lab Types: C = Commercial; F = Federal; G = Local Government; I = Industrial; O = Other; S = State
- See Footnotes 2, 3, and 4 on page 5 (Frequently Asked Questions) for the current list of states with lab accreditation programs If you need additional space, please make a copy of this page for additional laboratories.
TVA Sequoyah Nuclear Plant TN 0
0 2
6 4
5 0
TVA-Sequoyah Nuclear Plant P.O. Box 2000 Mailstop: OPS-5N Soddy-Daisy, TN 37384 T N 0 0 9 9 9 F
Pace Analytical -
Asheville 2225 Riverside Drive Asheville, NC 28804 N C 0 0 0 3 0 C
Pace Analytical -
Huntersville 9800 Kincey Avenue Suite 100 Huntersville, NC 28078 N C 0 0 0 1 4 C
Environmental Testing Solutions 351 Depot Street Asheville, NC 28801 N C 0 1 2 3 0 C
NPDES Permit #:
Permit Holder:
T203302 09/27/2024 05/17/2024 - 08/30/2024 TN0026450 Travis Markum SQN Environmental Scientist TVA - Sequoyah Nuclear Plant P.O. Box 2000 Mailstop: OPS-4A-SQN Soddy-Daisy, TN 37384-2000 423-843-6714 ERA Customer Number:
Report Issued:
Study Dates:
DMR-QA 44 Final Report TNI Analyte Code Analyte Units Performance Evaluation Reported Value Assigned Value Acceptance Limits Method Description Study Mean Study Standard Deviation USEPA Lab Code Study WP pH (cat# 577, lot# P348-977) 1900 pH S.U.
Acceptable 6.3 6.30 6.10 - 6.50 EPA 9040C 2004 6.30 0.0428 NC00030 WP348 DMRQA pH (cat# 577, lot# Q044-977) 1900 pH S.U.
Acceptable 6.47 6.49 6.29 - 6.69 USGS I-1586-85 1985 6.52 0.0593 TN00999 DMRQA44 WP Settleable Solids (cat# 883, lot# P348-911) 1965 Settleable Solids mL/L Acceptable 11 10.1 7.36 - 13.7 SM 2540 F-2015 2015 10.5 0.00 NC00030 WP348 WP Solids (cat# 241, lot# P348-499) 1960 Total Suspended Solids mg/L Acceptable 64.3 62.0 49.4 - 70.0 SM 2540 D-2015 2015 62.6 2.77 NC00030 WP348 1955 Total Dissolved Solids at 180°C mg/L Acceptable 490 484 436 - 532 SM 2540 C-2015 2015 484 22.0 NC00030 WP348 1950 Total Solids at 105°C mg/L Acceptable 579 562 506 - 618 SM 2540 B-2015 2015 554 19.2 NC00030 WP348 WP Simple Nutrients (cat# 584, lot# P348-505) 1515 Ammonia as N mg/L Acceptable 17.5 17.4 14.0 - 20.6 EPA 350.1 2 1993 17.4 1.00 NC00030 WP348 1820 Nitrate + Nitrite as N mg/L Acceptable 16.1 15.6 13.0 - 18.0 EPA 300.0 2.1 1993 15.7 0.798 NC00030 WP348 1810 Nitrate as N mg/L Acceptable 16.1 15.6 13.0 - 18.1 EPA 300.0 2.1 1993 15.6 0.814 NC00030 WP348 1870 ortho-Phosphate as P mg/L Acceptable 3.6 3.73 3.17 - 4.29 SM 4500-P E-2011 2011 3.77 0.201 NC00030 WP348 WP Simple Nutrients (cat# 584, lot# P348-505) 1820 Nitrate + Nitrite as N mg/L Acceptable 15.1 15.6 13.0 - 18.0 EPA 353.2 2 1993 15.7 0.798 NC00030 WP348 1810 Nitrate as N mg/L Acceptable 15.9 15.6 13.0 - 18.1 EPA 9056A 2007 15.6 0.814 NC00030 WP348 16341 Table Mountain Pkwy
- Golden, CO 80403
- 800.372.0122
- 303.431.8454
- fax 303.421.0159
- www.eraqc.com Study # : DMR-QA 44
NPDES Permit #:
Permit Holder:
T203302 09/27/2024 05/17/2024 - 08/30/2024 TN0026450 Travis Markum SQN Environmental Scientist TVA - Sequoyah Nuclear Plant P.O. Box 2000 Mailstop: OPS-4A-SQN Soddy-Daisy, TN 37384-2000 423-843-6714 ERA Customer Number:
Report Issued:
Study Dates:
DMR-QA 44 Final Report TNI Analyte Code Analyte Units Performance Evaluation Reported Value Assigned Value Acceptance Limits Method Description Study Mean Study Standard Deviation USEPA Lab Code Study WP Simple Nutrients (cat# 584, lot# P348-505) 1820 Nitrate + Nitrite as N mg/L Acceptable 15.9 15.6 13.0 - 18.0 EPA 9056A 2007 15.7 0.798 NC00030 WP348 1810 Nitrate as N mg/L Acceptable 15.1 15.6 13.0 - 18.1 EPA 353.2 2 1993 15.6 0.814 NC00030 WP348 WP Complex Nutrients (cat# 579, lot# P348-525) 1795 Total Kjeldahl Nitrogen mg/L Acceptable 26.5 28.8 21.7 - 34.6 EPA 351.2 2 1993 28.9 1.99 NC00030 WP348 1910 Total phosphorus as P mg/L Acceptable 7.2 7.43 6.18 - 8.59 EPA 365.1 2 1993 7.42 0.416 NC00030 WP348 WP Nitrite (cat# 888, lot# P348-770) 1840 Nitrite as N mg/L Acceptable 1.55 1.59 1.33 - 1.84 EPA 300.0 2.1 1993 1.58 0.0770 NC00030 WP348 WP Nitrite (cat# 888, lot# P348-770) 1840 Nitrite as N mg/L Acceptable 1.57 1.59 1.33 - 1.84 EPA 9056A 2007 1.58 0.0770 NC00030 WP348 WP Nitrite (cat# 888, lot# P348-770) 1840 Nitrite as N mg/L Acceptable 1.51 1.59 1.33 - 1.84 EPA 353.2 2 1993 1.58 0.0770 NC00030 WP348 WP Demand (cat# 578, lot# P348-516) 1530 BOD mg/L Acceptable 80.7 72.4 38.4 - 106 SM 5210 B-2016 2016 70.1 13.4 NC00030 WP348 1555 CBOD mg/L Acceptable 79.5 65.6 29.9 - 101 SM 5210 B-2016 2016 68.8 13.4 NC00030 WP348 1565 COD mg/L Acceptable 118 118 91.5 - 140 SM 5220 D-2011 2011 116 8.70 NC00030 WP348 2040 TOC mg/L Acceptable 42.7 46.6 38.7 - 54.1 SM 5310 B-2014 2014 46.8 2.25 NC00030 WP348 WP Oil & Grease (cat# 582, lot# P348-518) 1803 n-Hexane Extractable Material(O&G)(Grav) mg/L Not Acceptable 37.1 123 88.9 - 142 EPA 1664B (HEM) 2010 109 15.2 NC00014 WP348 16341 Table Mountain Pkwy
- Golden, CO 80403
- 800.372.0122
- 303.431.8454
- fax 303.421.0159
- www.eraqc.com Study # : DMR-QA 44
Kyle Henderson Quality Manager Pace Analytical Services LLC - Huntersville 9800 Kincey Ave, Suite #100 Huntersville, NC 28078 (704) 526-7835 EPA ID:
ERA Customer Number:
NC00014 P041103 101124T Final Evaluation Report TNI Analyte Code Analyte Units Reported Value Assigned Value Acceptance Limits Performance Evaluation Method Description Analysis Date Z Score Study Mean Study Standard Deviation Analyst Name WP Oil & Grease Concentrate (cat# 4122, lot# 101124T) Study Dates: 10/11/2024 - 10/15/2024 1803 n-Hexane Extractable Material(O&G)(Grav) mg/L 130 146 107 - 167 Acceptable EPA 1664B (HEM) 2010 10/15/2024 0.267 124 21.1 DVR 16341 Table Mountain Pkwy
- Golden, CO 80403
- 800.372.0122
- 303.431.8454
- fax 303.421.0159
- www.eraqc.com Project # : 101124T All analytes except for 1,1-Biphenyl, 1,2-Diphenylhydrazine, 1,3-Dinitrobenzene, 2,3-Dichloroaniline, Acetophenone, Atrazine, Azobenzene, Benzaldehyde, Caprolactam, n-Decane and n-Octadecane in the Base/Neutrals, catalog # 833, are included in ERAs A2LA accreditation. Lab Code 1539.01.
Ver. 1 Page 7 of 7
pacelabs.com 9800 Kincey Ave, Suite 100, Huntersville, NC 28078 15 October, 2024 DMR QA Corrective Action Pace Analytical - Huntersville Oil and Grease PT Corrective Action
Dear Recipient,
This letter serves to notify of corrective action taken for unacceptable PT results obtained during the laboratorys participation in ERA PT study WP-348. The laboratory has completed an investigation to determine the cause of the failure and has implemented corrective action in response. Participation in another PT study has been completed with acceptable results.
Details regarding the unacceptable result and actions taken in response are provided below.
Analyte:
n-Hexane Extractable Material (O&G)
Test Method:
EPA 1664B Reported Result:
37.1 mg/L Assigned Value:
123 mg/L Acceptance Limits:
88.9-142 mg/L Root Cause:
Inappropriate PT selection. The PT was received in a bottle type that required special adapters that introduced technique variations leading to inconsistent PT results.
Corrective Action:
A concentrated PT option has been utilized so these PT samples may be prepped in the same bottle types and allow for identical processing as client samples.
If you have any further questions, please feel free to contact me at (704) 526-7835 or you can e-mail me at kyle.henderson@pacelabs.com.
Sincerely, Kyle Henderson Quality Manager