NCG060422_Tier Two Response Report to MRO_20220221

Georgoulias, Bethany
From:
Dina Kolker <[e-mail]>
Sent:
Friday, June 3, 2022 11:42 AM
To:
Khan, Zahid
Cc:
Lee Fankhauser; Ashley Taylor; EMILY AFFLITTO; Sarah Zagurski;
[e-mail]; Stevens, James; Georgoulias, Bethany; Carson, Brittany
Subject:
[External] Amazon.com Services LLC — CTL6 Tier Two Stormwater Monitoring Two
Consecutive Benchmark Exceedances
Attachments:
1019340 Amazon CLT6 SW Q2 Tier Two Response 060222.pdf
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Dear Zahid,
Please see the attached Tier Two response report prepared for Amazon.com Services LLC — CTL6 facility due to two
consecutive exceedances.
The facility submitted the report due to two consecutive pH exceedances in accordance with Table 4, Section E-6 of
North Carolina's General Permit NCG060000.
Please do not hesitate to contact me should you have questions or require additional information regarding the above -
outlined Benchmark Value exceedance or Tier One Response/Action plan.
Thank you,
Dina Kolker
EHS Associate Consultant
T:646-578-0204
Dina. KolkerObsigroup.com
bs't* * Inspiring trust for a more resilient world.
BSI EHS Services and Solutions, 1187 Main Avenue, Suite 213, Clifton, NJ 07011
bsigroup.com/ehs I LinkedIn
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bs'1*0'
June 2, 2022
North Carolina Department of Environmental Quality
Morresville Regional Office
610 East Center Avenue, Suite 301
Morrisville, North Carolina 28115
In
Transmitted via Electronic Mail
[e-mail]
Re: Tier Two Stormwater Monitoring Two Consecutive Benchmark Exceedances
Amazon.com Services LLC — CTL6
12220 Carolina Logistics Drive
Pineville, North Carolina 281 134
Certificate of Coverage #: NCG060422
Dear Sir or Madam:
BSI Consulting (BSI) performed a stormwater monitoring event on May 23, 2022 at the Amazon.com
Services LLC — CTL6 facility located at 12220 Carolina Logistics Drive in Pineville, North Carolina (the
facility) in accordance with their approved Certificate of Coverage #:NCG060422.
Per the facility's Stormwater Pollution Prevention Plan (SWPPP), stormwater samples were collected
from two locations (Sampling Point 01 and Sampling Point 02) and analyzed for total suspended solids
(TSS), chemical oxygen demand (COD), and pH. North Carolina's Benchmark Values for these analytes
are 100 milligrams per liter (mg/L), 120 mg/L, and 6.0 — 9.0 standard units (S.U.), respectively. The
sample locations and designations are shown within the Drainage Area Site Map for the facility that has
been included as an attachment to this response letter.
While the results of the TSS and COD analyses for the sampling points did not result in a Benchmark
Value exceedance, pH was reported above North Carolina's Benchmark Value of 9.0 S.U. at each of the
two sampling points. The pH value for Sample Point 01 was 9.39 S.U. and the pH value for Sample Point
02 was 10.09 S.U.
BSI Project No. 1019340 Amazon CLT6 SW Q2 Tier Two Response 060222

North Carolina Department of Environmental Quality, Morresville Regional Office
Page 2
Photos
Sample Point 01 Field pH
Sample Point 02 Field pH
The facility has implemented the following responses as a result of the pH exceedances in accordance
with Table 4, Section E-6 of North Carolina's General Permit NCG060000:
• The exceedance and sampling date will be recorded within the facility's SWPPP.
• The North Carolina Department of Environmental Quality, Division of Energy, Mineral, and Land
Resource's Regional Office will receive the transmission of this letter (via email), a copy of which
will be recorded within the facility's SWPPP.
• An inspection of the site was completed on May 23, 2022 to, in part, identify any potential
sources of stormwater impacts from the facility.
• The site inspection did not identify an obvious source of the elevated pH recorded at the site.
There is no record of the use of materials or spills that could increase the pH of the stormwater.
• In the previous inspection completed on February 4, 2022, elevated pH was recorded and
triggered a Tier One Response. The selected action plan outlined in the Tier 1 Response was
implemented and there was no salt for de-icing purposes on the site during the May 23, 2022
inspection.
Please do not hesitate to contact me should you have questions or require additional information
regarding the above outlined Benchmark Value exceedance or Tier Two Response/Action plan.
Regards, Reviewed by:
Dina 9foffieA Ree JanPhmme�t
Dina Kolker Lee Fankhauser
EHS Associate Consultant Senior Consultant
[e-mail]
T: 646.578.0204
Attachments
Attachment 1: Drainage Area Site Map
BSI Project No. 1019340 Amazon CLT6 SW Q2 Tier Two Response 060222

North Carolina Department of Environmental Quality, Morresville Regional Office Attachment I
Attachment I
Drainage Area Site Map
BSI Project No. 1019340 Amazon CLT6 SW Q2 Tier Two Response 060222
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