NCC214186_ESC Approval Submitted_20210809

Iredell County Planning & Development
Erosion Control Section
349 North Center Street
P.O. Box 788
Statesville, NC 28687
Date: August 14, 2019
LETTER OF APPROVAL WITH MODIFICATIONS
Steven Jackson
LGI Homes NC LLC
3037 Sherman Drive
Lancaster, SC 29720
RE: Project Name: Colonial Crossing
Acres Approved with Modifications: 141
Project ID: TRTMN-2020-004
Project Location: PIN 4731351985.000
Submitted By: Merrick & Company
Date Received: July 16, 2019
Plan Type: New
Dear Mr. Jackson:
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to
be acceptable with modifications and herby issue this Letter of Approval with Modifications.
Modifications must be received in this office no later than two weeks prior to the project start
date. Failure to submit modified plans can result in a violation and fine under the Iredell County
Land Development Code. The Modifications required for Approval are listed on the attached
page. The Certificate of Approval issued by Iredell County must be posted at the job site. This
plan approval shall expire three (3) years following the date of this approval as is required by
Title 15A NCAC 4B.0129 and Section 9.6.6 of the Iredell County Land Development Code.
Title 15A NCAC 4B 0118(a) and Section 9.6.9 of the Iredell County Land Development Code
requires that a copy of the approved erosion control plan be on file at the job site. Any
amendments and/or revisions to the approved plan must be reviewed and approved prior to
implementation in order for the site to remain in compliance. Failure to submit plans for approval
may result in administrative actions and/or penalties as indicated in the Iredell County Land
Development Code. Also, this letter gives notice as required by G.S. 113A-61.1(a) and Section
14.2.2 of the Iredell County Land Development Code, of our right of periodic inspection to
insure compliance with the approved plan.
Iredell County'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

Letter of Approval with Modifications
Colonial Crossing
August 14, 2019
Page 2 of 4
inadequate to meet the requirements of the IredelI County Land Development Code and 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 insure
compliance with the Act and Code.
Acceptance and approval of this plan is conditioned upon your compliance with Federal, State,
and County water quality laws, regulations, and rules. This approval does not supersede any
other permit or approval.
As of May 1, 2019, all new construction activities are required to complete and submit an
electronic Notice of Intent (NOI) form requesting a Certificate of Coverage (COC) under the
NCGO10000 Construction Stormwater General Permit. This form MUST be submitted prior to
the commencement of any land disturbing activity on the above named project. The NOI form
may be accessed at deq.ne.gov/NCG01. Please direct questions about the NOI form to Annette
Lucas at [e-mail] or Paul Clark at [e-mail]. After you submit a
complete and correct NOI Form, a COC will be emailed to you within three business days.
Initially, DEMLR will not charge a fee for coverage under the NCGOI permit. However, on or
after May 1, 2019, a $100 fee will be charged annually. This fee is to be sent to the DEMLR
Stormwater Central Office staff in Raleigh.
Please note that this approval is based in part on the accuracy of the information provided in the
Financial Responsibility Form, which you provided. You are requested to file an amended form
if there is any change in the information included on the form. In addition, it is required that this
office to be notified of the proposed starting date for this project. Please notify us when you plan
to have a preconstruction conference.
Your cooperation is appreciated.
Sincerely,
Randall Moore, CESSWI, CFM
Erosion Control Inspector II
Enclosures: Modifications
Fact Sheet on the New NCGO1 Permit

Letter of Approval with Modifications
Colonial Crossing
August 14, 2019
Page 3 of 4
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: Colonial Crossing
Project ID: TRTMN-2020-004
County: Iredell
Reviewed by: Randall Moore
Required changes are designated as "RC" under legal authority from NC
General Statutes Chapter 113A Article 4 and the Iredell County Land
Development Code.
Suggested changes are designated as "SC" for improvement of the plan.
1. Provide copies of 401/404 permits required for work in streams'creeks. —RC
2. Provide phasing for project to limit disturbed areas to no more than 20-25 acres at one
time, per conversation on August 13, 2019 with Josh Overcash and Evan Hinson of
Merrick & Company. Utilize sheets provided in email to this office from Merrick &
Company and include this phasing in the construction sequence, requiring stabilization as
areas are brought to grade. —RC
3. Turn silt fence up at basin outlets. Basin outlets should not discharge into disturbed
areas. —RC
4. Silt fence should be across all down slope side of all land disturbing activity. —RC
5. All basin outlets should merge over stream buffer, not intersect perpendicularly. —RC
G. All sediment stockpiles to be located at least 50 feet from diversions and basins. Wrap
downslope sides of stockpiles with silt fence. —RC
7. Use slope drains for al diversions entering basins. Provide inlet/outlet protection for all
slope drains. Provide details. --RC
8. Use diversionslbenns and slope drains to direct runoff into basins. Do not allow runoff to
sheet flow over basin slopes into basins. RC
9. All diversions shall enter basins in front of the first row of baffles farthest from skimmer.
—RC
10. Use straw wattles for check dams, not rip rap. —SC
11. Stream crossing areas to be protected from impacts, only open up to install culvert,
immediately stabilize when complete. —RC
12. Stream culverts to be installed in a timely fashion to lessen impacts to stream. Work is
not to be left Iingering. Do not start if there will be any delay during this construction
process. —RC
13. Space baffles out more in basins. —SC
14. Silt fence should be 10 feet off toe of slopes. —RC
15. Slopes 10 feet and greater in height need more protection than silt fence. May use double
row of silt fence with wire backing and silt fence stone outlets staggered. Track and
place matting on slopes immediately after they are brought to grade. —RC
16. Lots should be graded to flow towards road. Only runoff on these slopes should be what
falls on them. —SC

Letter of Approval with Modifications
Colonial Crossing
August 14, 2019
Page 4 of 4
17. Need contours labeled for clarity. —RC
18. Basins in Phase 2 are only to be maintained. Stone pipe outlet work is permitted, but
these basins are to remain in initial configuration until all areas draining to them are
stabilized. —RC
19. Diversions need to be installed and maintained as the site is brought to grade, continue to
carry runoff to basins from top or bottom of slopes. —RC
20. Provide a generic lot protection detail for lot building phase. —RC
21. Under the Erosion Control Notes and Construction Sequence, it should reference lredell
County not NC DEQ. —RC
22. Riser basin 1 skimmer orifice should be closer to 2.75 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
23. Skimmer basin 2 skimmer orifice should be closer to 2 inches to dewater the required
volume in as close to 3 days' time as possible. --RC
24. Riser basin 3 skimmer orifice should be closer to 2.5 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
25. Riser basin 4 skimmer orifice should be closer to 2.75 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
26. Skimmer basin 5 skimmer orifice should be closer to I inch to dewater the required
volume in as close to 3 days' time as possible. —RC
27. Riser basin 6 skimmer and skimmer orifice should be designed to dewater the required
volume of21,960 cubic feet in as close to 3 days' time as possible. —RC
28. Skimmer basin 7 skimmer orifice should be closer to 1.75 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
29. Riser basin 8 skimmer and skimmer orifice should be designed to dewater the required
volume of 36,000 cubic feet in as close to 3 days' time as possible. —RC
30. Riser basin 9 skimmer orifice should be closer to 3.5 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
31. Skimmer basin 10 skimmer orifice should be closer to 1.75 inches to dewater the required
volume in as close to 3 days' time as possible. —RC
32. Riser basin 1 I skimmer and skimmer orifice should be designed to dewater the required
volume of 53,100 cubic feet in as close to 3 days' time as possible. —RC
33. Skimmer basin 12 skimmer orifice should be closer to 2.25 inches to dewater the required
volume in as close to 3 days' time as possible.—RC
34. Riser basin 13 skimmer and skimmer orifice should be designed to dewater the required
volume of 43,740 cubic feet in as close to 3 days' time as possible. —RC
35. Riser basin 13 does not need a pre and post design. The basin is to stay in its initial
installation dimensions until areas draining to it have been stabilized. —RC
36. Riser basin 14 skimmer and skimmer orifice should be designed to dewater the required
volume of 33,660 cubic feet in as close to 3 days' time as possible.—RC