SW4220801_Design Calculations_20220825

21-026
EROSION AND
SEDIMENTATION CONTROL
NEWLIN MEADOW SUB. PH II
Mineral Spring Road
Graham, NC 27253
Engineer of Record: Chad E. Abbott, PE
[e-mail] / 919-230-0996 Ext. 101
April 25, 2022

CaIOEESIGN &
ENGINEERING, PLLC
CLIENT -FOCUSED • COMPREHENSIVE • COST-EFFECTIVE
NARRATIVE
2537E. LYON STATION RD, STE 102
PO BOX 361
CREEDMOOR, NC 27522
919 230-0996

r3DESIGN &
ENGINEERING, RLLC
CLIENT -FOCUSED • COMPREHENSIVE • COST-EFFECTIVE
Narrative
Project Data:
• C3 Project#: 21-026
• Name: Newlin Meadow Sub. PH II
• PIN:161952
• Address: Mineral Spring Road, Graham, NC 27253
• River Basin: Cape Fear
• Property Total Area: 1,413,050 sf (32.44 ac)
• Existing BUA: 0 sf (0.00 ad
• Removed BUA: 0 sf (0.00 ad
• Proposed BUA: 160,000 sf (3.67 ac)
• Total BUA: 160,000 sf (3.67 ad —11%
• Disturbed Area: 269,272 sf (6.18 ad
• Water Protection Overlay: Motes Creek (WS-V: NSW)
2537E. LYON STATION RD, STE 102
PO BOX 361
CREEDMOOR, NC 27522
919 230-0996
Site Description and Existing Conditions:
The subject property is located approximately 4,300 ft. south of the intersection between NC54 and
Mineral Spring Road. The property predominantly consists of existing managed pervious areas used for
agriculture/farming. The drainage area (DA) for the property drains to the west where the existing creek
borders the property. The soils in the project site are mapped as Chewacla loam (ChA), Cullen clay loam
(CnB2), Cullen clay load (CnC2), and Cullen clay loam (CnD2). Those soils area classified as B and B/D is
hydrologic soil group (HSG).
Project Description:
The proposed project is for a single-family subdivision development with 27 lots, consisting of 2 phases.
This submittal is for the development of lots 14-27 (phase 2) with a new cul-de-sac street. Phase I has
been previously permitted as project ID ALAMA-2022-029. One skimmer basin is proposed for the
erosion control treatment and will be located on lot 21. This skimmer basin will be treating the runoff
for lots 14-18 and 22-27, while the rest will be treated by silt fence and silt fence outlets.
Temporary Gravel Construction Entrance/Exit:
A temporary gravel construction entrance/exit will be installed at the beginning of the proposed road.
During wet weather, it may be necessary to wash vehicle tires at this location.
Temporary and Permanent Diversion:
A temporary ditch/diversion will be constructed above the existing 3:1 fill slope start from construction
entrance/exit. This temporary diversion will outlet to the proposed sediment basin in lot 21. The
ditch/diversions will be matted with NAG product DS75 with straw wattle spacing according to the plan
details.
Sediment Fence and Sediment Fence Outlet:
A sediment fence will be constructed as perimeter control along the limited of disturbance line where a
temporary or permanent diversion is not proposed. The sediment fence outlet will be placed at the
lowest elevation where the runoff can possibly pond.

Certificate of Coverage
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG010000
NC Reference No. NCG01-2022-2009
Certificate of Coverage No. NCC222009
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water
Pollution Control Act, as amended,
Cimland, LLC
is hereby authorized to discharge stormwater associated with CONSTRUCTION ACTIVITIES to surface waters of North
Carolina from a site located at:
Newlin Meadows Sub Phase II
Mineral Spring Road
Graham
Alamance County
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in N.C. General Permit
No. NCG010000.
This Certificate of Coverage is affiliated with E&SC Plan Project No. ALAMA-2022-049
This Certificate of Coverage shall become effective 5/31/2022.
This Certificate of Coverage shall remain in effect until rescinded or expired.
This Certificate of Coverage will expire on the anniversary of its effective date unless it is renewed by payment of the
annual administration and compliance fee.
for Brian Wrenn
Director, Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission