NCS000096_Draft Permit Cover Letter_20201026

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
John Kuhn
Albemarle U.S., Inc.
348 Holiday Inn Drive
Kings Mountain, NC 28086
SENT ELECTRONICALLY
Mr. Kuhn:
NORTH CAROLINA
Environmental Quality
October 26, 2020
Subject: Draft NPDES Stormwater Permit
Permit No. NCS000096
Albemarle U.S., Inc.
Cleveland County
The Division of Energy, Mineral, and Land Resources' Stormwater Permitting Program
acknowledges receipt of your renewal application for coverage under NPDES Permit
No. NCS000096 on April 10, 2014. Enclosed with this letter is a copy of the DRAFT
stormwater permit for your facility. Please review the draft carefully to ensure
thorough understanding of the conditions and requirements it contains.
The draft permit contains the following significant changes from the facility's current
permit:
1. You are required to collect analytical and qualitative monitoring samples
during "measurable storm events" as defined in Part J. This term is
different from the "representative storm event" in earlier permits.
2. Requirements for the Stormwater Pollution Prevention Plan (SWPPP) have
been updated in Part B.
3. Changes have been made to monitoring parameters and benchmarks for
those parameters. Stormwater benchmarks are not permit limits, but rather
guidelines for implementing the SWPPP. A benchmark exceedance is not a
permit violation; however, the permittee must respond to exceedances as
directed in Part D.
• Oil & Grease monitoring parameters have been revised as follows:
Q17--A� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
E512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
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o Non -Polar Oil & Grease [EPA Method 1664 (SGT-HEM)] replaces
Oil & Grease/TPH. The benchmark for Non -polar Oil & Grease
using this method is 15 mg/L. This requirement appears in all
individual stormwater permits; however, it only applies to
drainage areas where industrial activities use >55 gallons of oil, on
average, per month. If the facility has any drainage areas in which
>55 gallons of oil are used during the permit cycle, the
requirements shall apply.
4. Tiered responses have been added to this permit. Exceedances of
benchmark values require the permittee to increase monitoring, increase
management actions, increase record keeping, and/or install stormwater
Best Management Practices (BMPs) in a tiered program in accordance with
Part D of this permit.
S. New requirements on reporting have been added in Part E to comply with
federal regulations requiring electronic submittal of discharge monitoring
reports. Additionally, this permit contains requirements for future reporting
via eDMR when the forthcoming eDMR internet application is finalized.
6. Civil and administrative penalties have been updated to reflect current
federal law in Part I.
Please review the draft permit and submit any comments to me no later than 30 days
following your receipt of the draft. Comments may be emailed to me at
[e-mail] or mailed to my attention at NC DEMLR, Stormwater Permitting
Program, 1612 Mail Service Center, Raleigh, NC 27699-1612. If you have any questions,
please email me or call me at [phone].
Sincerely,
ffz'�Tqe
Aana Gamble
DEMLR Stormwater Division
Attachment: Draft Permit NCS000096
cc: John Kuhn, Albemarle U.S., Inc., [e-mail]
Kevin Sharp, Albemarle U.S., Inc., [e-mail]
James Moore, DEMLR Mooresville Regional Office, [e-mail]
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9L9.707.9200