7607_GreatOakMSWLF_Comment_Cell3A_2ndCQARpt_FID1357000_20190823

From:Chao, Ming-tai
To:Harrison, Susan
Cc:Lamb, Steve; Stanley, Sherri; Kirchner, Chuck; [e-mail]
Subject:Comments on Great Oak LF - Cell 3A Partial Certification Report, 7607-MSWLF-2015
Date:Friday, August 23, 2019 4:54:00 PM
Attachments:image004.emzimage006.pngimage010.pngimage011.png
Hi Susan:
The Solid Waste Section completes a review of the 2nd submittal of the CQA Report for GreatOak MSWLF – Phase 1, Cell 3A (FID 1339347). Below are comments:
1. The CQA report should describe the construction of interim berm dividing the Cell 3A &3B. Appendix C-5 has document the seam vacuum testing of primary and secondary liners. 2. (Section 4.3) According to the logs for the primary liner in Appendix C-5, primary panelsP34 and P35 were replaced by P34A & P35A. Please describe the reason of replacement inthis subsection.
3. (Sections 7.1 &7.2) Based on the lab testing results on the drainage aggregates (NC DOTNo. 5 stone), please state if the material meets the criteria per Technical specification andthe CQA plan. 4. (Section 8.3) please describe the testing results and conclude if the constructed (veneer)side slopes of the landfill cell meets the landfill design requirement.
5. (Appendix C-3) Geomembrane Defect Log – Likely typos are foundSeam/panel shown on SheetNumber Incorrect Seam/panel Likely Seam/panel
7, N 28/29/75/76 28/29/74/76
7, P 28/29/73/75 28/29/73/74 6. (Appendix C-5) Geomembrane Seam Log of Secondary Liner– Extrusion Seam. Thesecondary liner panels in Cell 3 shall be seamed to the primary liner panels in Cell 2. Theseam between Panel 102 (Cell 3) to a panel (at Cell 2) is not available. 7. (Appendix C-5) Primary Liner:a. Geomembrane Trial Seam Log. Log dated 06/17/2019, Sample No. TF-3 recorded apeel strength of 19 ppi. Please check if the data is typo.b. Geomembrane Panel Deployment Log dated 6/20/19 Line Number 24, the recordeddeployed length for Panel 35A is 219 feet. The data is erratic and not consistent withthat sown on the drawing.c. Geomembrane Trial Seam Log – Fusion Seam. 6/11/2019 log recorded the total weldedseam length of 941 feet. Please check the seam length (it is likely 971 feet).d. Geomembrane Seam Log – Extrusion Seam. The seams connecting primary andsecondary liners are not available: Types 1, 2 and 4 anchor trenches, a portion of Type3 anchor trench (Panel Nos. P-10 through P13 and P16 through P33, P34A & P35A toprimary liner panels in Cell 2).e. Geomembrane Defect Log, Sheet No. 2, Defect Code X recorded P26/P27 wheresample DP-5 was collected. The DP-5 was collected at P25/26. Please correct typo. 8. (Appendix C-5) Geomembrane Seam Log of Tertiary Liner– Extrusion Seam. The logsdated 06/26/2019, Liner Number 2, The Panels T-13 & T-15 are likely seamed to PanelP106.
9. (Appendix C-5) Geomembrane Seam Vacuum Test Log (Tertiary Liner). The logs dated06/26/2019, Liner Number 24, The Panels T-13 & T-15 are likely seamed to Panel P106. By the way, I just received the final Operations Plan and remaining portions of the CQA Reportfor Cell 3A and will review them next week. Have a wonderful weekend.

From: Chao, Ming-tai
Sent: Wednesday, August 14, 2019 9:04 AM
To: [e-mail]; Harrison, Susan <[e-mail]>
Cc: Lamb, Steve <[e-mail]>; Stanley, Sherri <[e-mail]>; Kirchner,
Chuck <[e-mail]>
Subject: Great Oak LF - Cell 3A Partial Certification Report, 7607-MSWLF-2015

Dear all:
The Solid Waste Section received the electronic copy of the 2nd partial CQA report for Phase 1,Cell 3A of Great Oak Landfill. The CQA report is uploaded to Laserfiche with a FID 1339347and will be review shortly. Thank you for the submittal and have a wonderful day.

From: Jarrod Timmons <[e-mail]>
Sent: Tuesday, August 13, 2019 7:10 PM
To: Chao, Ming-tai <[e-mail]>
Subject: [External] File Transfer: Great Oak LF - Cell 3A Partial Certification Report - WM, Great Oak LF,
Cell 3 Dsgn/CQA Srv NC

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Project Name: WM, Great Oak LF, Cell 3 Dsgn/CQA Srv NC
Project Number: 02215305.10

From: Jarrod Timmons (SCS Engineers)
To: Ming Chao
CC: Steve Lamb (SCS Engineers)
Subject: Great Oak LF - Cell 3A Partial Certification Report
Purpose: For your review and comment
Sent via: Info Exchange
Expiration Date: 9/12/2019
Remarks: Ming,

Attached is the second certification report submittal for Cell 3A atGreat Oak Landfill.  If you have any question or comments, please
contact myself or Steve Lamb. 
Regards,
 Jarrod Timmons, EI
Project ProfessionalSCS Engineers
2520 Whitehall Park Drive, Suite 450
Charlotte, NC 28273
704.916.1530 (W)
614.206.2995 (C)[e-mail] www.scsengineers.com

Transferred Files
NAME TYPE DATE TIME SIZE
Transmittal - 00019.pdf PDF File 8/13/2019 7:07 PM 117 KB
Cell 3A Certification Report -08.13.19.pdf PDF File 8/13/2019 6:50 PM 40,561KB