7607_GreatOakMSWLF_CommentonCQARpt_Cell1B_DIN 27541_20170322

1
Chao, Ming-tai
From:Chao, Ming-tai
Sent:Wednesday, March 22, 2017 5:22 PM
To:'Lamb, Steve'
Subject: comments on Great Oak LF Cell 1B Certification Report, 76-07
Hi Steve: DIN 27541

Few comments on the CQA Report – Cell 1B (DIN 27507) are provided below:

1. The approved waste footprint for Cell 1 is 15.5 acres which comprise of 8.3-acre Cell 1A and 7.2-acre
Cell 1B. Please confirm the constructed acreage for Cell 1 in the CQA Report: Section 1.1 states the
Cell 1A is 8.3 acres and Cell 1B is 7.1 acres. Section 3.1 states the waste footprint for Cell 1 is 15.3
acres. What are the final constructed acreages for Cell 1A & Cell 1B according to the final as-built
survey results? Several acres of land can’t be developed for the landfill Cell 1 due to protection of the
buffer of the guy wire anchor, please also provide the acreage of the land ceding to the buffer.

2. Appendix C-4
i. (Secondary Geomembrane Liner - Geomembrane Seam Pressure Test Log - Line Number 3) The
final pressure of 39 psi is higher than initial pressure of 30 psi in the tested seam connecting S-15
& S-16 is likely a typo. Please provide the correct test result.
ii. (Primary Geomembrane Liner – Geomembrane Seam Log) The destructive sample DP-30 was
collected in the seam connecting panels P86 & P87, not in the seam connecting panels P59 &
P60 as shown in the log (Line Number 1) dated 01/06/2017. Please revise the log accordingly.

iii. (Secondary Geomembrane Liner - Geomembrane Seam Pressure Test Log)
a. The seam log documented that the primary liner panels were seamed to the secondary liner
panels. But the Geomembrane Seam Pressure Test Log doesn’t provide the pressure test
results on the seams connecting the primary and secondary liners.
b. The pressure test on the seam connecting panels 32 & 82 is not available in the log.

3. Appendix C-5
i. The location of sample DC-34 is not available on the as-build drawing of the Secondary
Geomembrane Liner.

4. Appendix J
i. The alignments of the installed LCS and LDS piping must be shown the as-built drawings.
ii. (Drawing 3 of 3) The elevations /topo on the north corner, around the survey points 9687, 9719,
9717, 9761, & 9760 are likely incorrect.
Please provide the responses to the comments. Please submit only ELECTRONIC copy of the responses and
final CQA Report.

Ming Chao
Ming-Tai Chao, P.E.
Environmental Engineer
Permitting Branch, Solid Waste Section
2
NCDEQ, Division of Waste Management
(Mailing Address)
1646 Mail Service Center
Raleigh, NC 27699-1646

(Street Address)
Green Square, 217 West Jones Street
Raleigh, NC 27603
Tel. [phone]
[e-mail]
http://portal.ncdenr.org/web/wm/sw

E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties.

From: Chao, Ming-tai
Sent: Wednesday, March 22, 2017 9:52 AM
To: 'Lamb, Steve' <[e-mail]>
Subject: RE: Great Oak LF Cell 1B Certification Report

HI Steve: Good morning. The CQA report (hard copy and an electronic copy) was received ion 03/10/17 and uploaded
to the system on 03/13/17 with a DIN 27507. I am currently reviewing the document and found few typos and expect to
wrap up the review by next week. I am doing multiple tasks for the past several weeks so forgot to send out the e-mail
of acknowledging of receipt. This Monday I also sent out the email message to Mr. John Workman with WM asking the
submittal of financial assurance mechanism to Ms. Sarah Rice ASAP. My supervisor, Mr. Ed Mussler is scheduled to take
3-week vacation in mid-April. I try to issue the PTO for Cell 1B in the first week of April. Have a wonderful day.

Ming Chao
Ming-Tai Chao, P.E.
Environmental Engineer
Permitting Branch, Solid Waste Section
NCDEQ, Division of Waste Management
(Mailing Address)
1646 Mail Service Center
Raleigh, NC 27699-1646

(Street Address)
Green Square, 217 West Jones Street
Raleigh, NC 27603
Tel. [phone]
[e-mail]
http://portal.ncdenr.org/web/wm/sw

E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

3

From: Lamb, Steve [mailto:[e-mail]]
Sent: Tuesday, March 21, 2017 5:35 PM
To: Chao, Ming-tai <[e-mail]>
Subject: RE: Great Oak LF Cell 1B Certification Report

Ming:

I assume you got this, but did not hear anything from you like previous submittals. Was it received and logged in?

Thanks,

Steve Lamb, PE
Vice President
SCS Engineers
2520 Whitehall Park Drive, Suite 450
Charlotte, North Carolina 28273
Office – 704.504.3107
Direct - 704-916-1529
Mobile – 704.576.4731

From: Chao, Ming-tai [mailto:[e-mail]]
Sent: Thursday, March 09, 2017 12:35 PM
To: Lamb, Steve
Subject: Re: Great Oak LF Cell 1B Certification Report

Hi Steve:

I am in the regional office right now and will not be available placing my hand on the delivered package this
week. I (some other folks in the building too) had a bad experience before, a package delivered to me by Fed
Exp and arrived and signed by someone else in the Green Square Office but got lost and never being found.
The person who signed the delivery said the package was placed in the front desk, and the secretary in the
Section was never being notified to pickup the package. It is much safe to go the mail center, if the package
get lost, I at least can find out who lost my package. Sorry to let you read my complaint, but the person in
the front desk of the building are not always the person being trained to handle the delivery; they are
volunteers to step-in while the person in charge of the front desk must be rotated for a break or personal
leave.

Ming
From: Lamb, Steve <[e-mail]>
Sent: Thursday, March 9, 2017 12:03 PM
To: Chao, Ming-tai
Subject: RE: Great Oak LF Cell 1B Certification Report

4
Even if I use federal express I should send to the mailing address?

From: Chao, Ming-tai [mailto:[e-mail]]
Sent: Thursday, March 09, 2017 11:51 AM
To: Lamb, Steve
Subject: Re: Great Oak LF Cell 1B Certification Report

Hi Steve:

I need one e-copy (pdf ) and one hard copy which send to the Solid Waste Section at the mailing address
below. Thanks.

Ming Chao
Ming-Tai Chao, P.E.
Environmental Engineer
Permitting Branch, Solid Waste Section
NCDEQ, Division of Waste Management
(Mailing Address)
1646 Mail Service Center
Raleigh, NC 27699-1646

(Street Address)
Green Square, 217 West Jones Street
Raleigh, NC 27603
Tel. [phone]
[e-mail]
http://portal.ncdenr.org/web/wm/sw

The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location.

E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties.

From: Lamb, Steve <[e-mail]>
Sent: Thursday, March 9, 2017 11:34 AM
To: Chao, Ming-tai
Subject: Great Oak LF Cell 1B Certification Report

Ming:

We are sending this out today. How many copies should I send to you?

Thanks,

Steve Lamb, PE
Vice President
SCS Engineers
2520 Whitehall Park Drive, Suite 450
Charlotte, North Carolina 28273
Office – 704.504.3107
5
Direct - 704-916-1529
Mobile – 704.576.4731