NCC214386_ESC Approval Submitted_20210802

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
July 13, 2021
LETTER OF APPROVAL WITH MODIFICATIONS
Caldwell County
ATTN: Mr. Anthony Helton
905 West Avenue NW
Lenoir, NC 28645
RE: Project Name: Caldwell County Animal Hospital
Acres Approved: 2.77
Project ID: CALDW-2022-001
County: Caldwell
City: Lenoir
Address: Morganton Blvd/US HWY-64
River Basin: Catawba
Stream Classification: C
Submitted By: Mr. Adam Carroll, P.E.
Date Received by LQS: July 7, 2021
Plan Type: Institutional
Dear Mr. Helton,
This office has reviewed the subject erosion and sedimentation control plan and hereby
issues this Letter of Approval with Modifications. A list of the modifications is attached. This
plan approval shall expire three (3) years following the date of approval, if no land -
disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. Should
the plan not perform adequately, a revised plan will be required (G.S. 113A-54.1)(b).
As of April 1, 2019, all new construction activities are required to complete and submit an
electronic Notice of Intent (eNOI) form requesting a Certificate of Coverage (COC) under the
NCGO10000 Construction General Permit. After the form is reviewed and found to be
complete, you will receive a link with payment instructions for the $100 annual permit fee.
After the fee is received, you will receive the COC via email. You MUST obtain the COC prior
to commencement of any land disturbing activity. The eNOI form may be accessed at
North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
raoarH WOLINu
oePar�.ht at �viomenw auol�ty 828.296.4500

deq.nc.gov/NCG01. Please direct questions about the eNOI form to Annette Lucas at
[e-mail] or Paul Clark at [e-mail]. If the owner/operator
of this project changes in the future, the new responsible party is required to apply for
his/her own COC.
Title 15A NCAC 413.0118(a) and the NCG01 permit require that the following documentation
be kept on file at the job site:
1. The approved E&SC plan as well as any approved deviation.
2. The NCG01 permit and the COC, once it is received.
3. Records of inspections made during the previous 12 months.
Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic
inspection to insure compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Program is performance -oriented,
requiring protection of existing natural resources and adjoining properties. If, following the
commencement of this project, it is determined that the erosion and sedimentation control
plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of
1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions
to the plan and implementation of the revisions to ensure compliance with the Act.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and
State water quality laws, regulations, and rules. In addition, local city or county ordinances
or rules may also apply to this land -disturbing activity. This approval does not supersede
any other permit or approval.
Please note that this approval is based in part on the accuracy of the information provided
in the Financial Responsibility Form, which you provided. This permit allows for a land -
disturbance, as called for on the application plan, not to exceed the approved
acres. Exceeding the acreage will be a violation of this permit and would require a revised
plan and additional application fee. You are requested to file an amended form if there is any
change in the information included on the form. In addition, it would be helpful if you notify
this office of the proposed starting date for this project.
Your cooperation is appreciated.
S' ere ,
r
i aeI mith
Assi ant Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
NPDES NCG01 Fact Sheet
Modifications
MEQ> North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Asheville Regional OfFce 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 28778
NORTH CA13OlAd6
UeparMrn� of �mronmen�i geaury 828.296.450 0

ec: Mr. Adam Carroll, P.E. [e-mail]
cc: Regional Office file
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: Caldwell County Animal Shelter
Project ID: CALDW-2022-001
County: Caldwell
For final plan approval, on or before July 30, 2021, please provide to this office the
requested documents or additional information listed below.
1. Because diversions are routed to each end of the skimmer sediment basin, please
show three separate settling chambers separated by COIR baffles on each end of the
basin. This may allow additional settling time for each side of the basin. {G.S.113A-
57 (3)}.
2. Please located the tree protection fence within the limits of disturbance shown on
the erosion and sediment control plan sheets. {G.S. 113A-57 (3)1.
3. On Phase II Erosion Control Plan Sheet 8, please reword note 8 of the Phase II
Erosion Control Sequence to read that the temporary erosion and sediment control
measures must be removed, and these areas permanently stabilized prior to the
final erosion and sediment control close out inspection. {G.S.113A-57 (3)}.
4. In addition to the callout on shown on Phase II Erosion Control Plan to install
S75BM matting on all 2:1 slopes and note 5 in the Erosion Control General NotesO,
please hatch all areas on the plan that require 7-day stabilization per NPDES
NCG010000 including basin slopes and conveyances. {NCG010000}
5. Please add to the plan sheets that if borrow or waste material is required or
generated during grading operations, an approved erosion and sediment control
permit must be secured for the borrow or waste material site prior to initiation of
any land disturbing activity. 115A NCAC 04B .0110}.
6. To prevent erosion, please consider extending the permanent rip rap clean water
diversion outlet below the graded embankment of the temporary skimmer basin.
{G.S. 113A-57 (3)1.
7. Please review the discharge calculations for the permanent clean water diversion ditch
located at the perimeter of the east end of the site. While the rip rap channel is stable at the
9.89 ft/s velocity of the runoff (shown on the NAG Channel Analysis Sheet) please show that
once the runoff exits the rip rap channel, the velocity is reduced to below an erosive velocity
(less than 2.5 ft/s) over vegetated soil. {G.S.113A-57 (3)1.
D ��.- North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa. North Carolina 28778
NaRrH cnaountn
Depaamept of umro'—ul weary 828.296.4500

Ref: G.S. 113A-54.1 through G.S. 113A-57
Sections 15A NCAC 04A.0101 through 15A NCAC 04E.0504
General Permit NCG 010000 NPDES for Construction Activities
North Carolina Department of Environmental Quality I Division of Energy, Mlnera[ and Land Resources
Asheville Regional Office 1 2090 U.S. Highway 70 1 Swannanoa, North Carolina 26778
Name-i caxounw �
tleyartmenl of Emlmnmen�l quarry 828.296,4500