20180340 Ver 2_401 Application_20181115

WETLANDS
& WATERS
Mr. Alan Johnson
NC Division of Water Resources
c/o 401 and Buffer Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699
RE: Sylvan Creek Subdivision, SAW -2015-02027
Sylvan Creek Properties, LLC
Nationwide Permit 3 Verification & 401 WQC
Denver, Lincoln County, North Carolina C 1
Mr. Johnson,
November 12, 2018
Attached, please find information pertaining to a requested Water Quality Certification associated with
a recently submitted Pre -Construction Notification for a Nationwide Permit 3 Verification request. This
request is for impacts associated with repair of an existing dam and control structure that was damaged
as a result of Hurricane Michael on October 11th, 2018. The project is located in Denver, North Carolina,
just south of NC -16 Business and north of St. James Church Road. A previous permit verification and
corresponding Water Quality Certification was recently issued for impacts associated with the
development of this project for the Action ID number referenced above.
Impacts consist of 0.13 acres of open water impacts for purpose of the dam and control structure repair
and 16 linear feet of stream impacts for purpose of riprap outlet protection. The riprap will be pressed
into the stream bed at the existing grade such that there is no loss of function. As such, compensatory
mitigation is not proposed for these additional impacts.
Please do not hesitate to call if you have any questions about the provided information.
Best regards,
/ �./' 7
lz9
Perry Isner
704.773.4239
Enclosures: Updated Pre -Construction Notification pages
Dam Repair Plan and Impact Exhibits
Field photos depicting breach
CHRISTOPHER HUYSMAN WETLANDS & WATERS, INC. TAMP BANDY
1 70 DEW DROP ROAD 41 OB LB PROPST DRIVE
SPARTA, NC 213675 CONOVER, NC 2B61 3
336.406.0906 B2B.302.3437
CHRIS. H UYSMAN@GMAIL. COM JTAMPBAN DY(o_) GMAIL. COM

WAT f,9
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form — Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the Corps:
Section 404 Permit ❑ Section 10 Permit
1 b.
Specify Nationwide Permit (NWP) number: 29, 3 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
Yes ❑ No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes 0 No
For the record only for Corps Permit:
❑ Yes m No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes [g No
1g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below.
❑ Yes Z No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes N No
2.
Project Information
2a.
Name of project:
Sylvan Creek
2b.
County:
Lincoln
2c.
Nearest municipality / town:
Denver
2d.
Subdivision name:
Sylvan Creek
2e.
NCDOT only, T.I.P. or state project no:
3.
Owner Information
3a.
Name(s) on Recorded Deed:
Multiple Names; see enclosure
3b.
Deed Book and Page No.
11 E - 355
3c.
Responsible Party (for LLC if
applicable):
3d.
Street address:
16400 Huntersville Concord Rd
3e.
City, state, zip:
Huntersville, NC 28078
3f.
Telephone no.:
3g.
Fax no.:
3h.
Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
® Wetlands ® Streams — tributaries ❑ Buffers ® Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 P
Culvert
Headwater Wetland
Yes
Corps
0.06
W2
Choose one
Choose one
Yes/No
W3
Choose one
Choose one
Yes/No
W4
Choose one
Choose one
Yes/No
W5
Choose one
Choose one
Yes/No
W6
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
0.06
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Culvert
UT to Forney Creek
PER
Corps
5
135
S2 T
Cofferdam
UT to Forney Creek
PER
Corps
5
10
S3 P
Culvert
Forney Creek
PER
Corps
8
148
S4 T
Cofferdam
Forney Creek
PER
Corps
8
12
S5 P
Stabilization
UT to Forney Creek
PER
Corps
4
16
S6
Choose one
-
3h. Total stream and tributary impacts
321
3i. Comments:
Impact S-5 consists of riprap stabilization and outlet protection for new impoundment and control structure. Riprap stabilization is a permanent impact
but will be pressed into stream bed at existing elevation such that aquatic life passage is preserved and there is no loss of stream function. As such,
compensatory mitigation for this impact is not proposed.
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indivi ually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 P
Fill/ control structure
Pond
0.13
02
Choose one
Choose
03
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
0.13
4g. Comments: Impacts are necessary for construction of new impoundment and control structure as a result of breaching of the original dam.
Breach occurred on 10/11/18 as a result of Hurricane Michael.
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require miticiation, then vou MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number -
Permanent (P) or
Temporary T
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
B1
Yes/No
B2
Yes/No
B3
Yes/No
B4
Yes/No
B5
Yes/No
B6
Yes/No
6h. Total Buffer Impacts:
6i. Comments:
Page 5 of 10

SHOP DRAWING SUBMITTALS
CONTRACTOR SHOP DRAWING SUBMITTALS SHALL INCLUDE BUT NOT BE LIMITED TO THE FOLLOWING ITEMS:
1. THE 60 -INCH DIAMETER ALUMINIZED CORRUGATED METAL PIPE RISER.
2. RISER STEPS.
3. BOTTOM DRAIN 8" GATE VALVE.
4. THE 8 -INCH DIAMETER RESERVOIR DRAIN VALVE, VALVE STEM AND STEM GUIDES.
5. BOTTOM DRAIN AND RISER TRASH RACKS.
6. THE 48 -INCH DIAMETER ALUMINIZED CMP BARREL AND THE MATERIAL USED TO SEAL THE JOINTS.
7. THE REINFORCEMENT STEEL FOR THE RISER FOOTING, AND CONCRETE EMERGENCY SPILLWAY.
8. CONCRETE MIX DESIGN REGARDING THE SPILLWAY RISER ANTI -FLOTATION BLOCK AND EMERGENCY SPILLWAY.
9. THE CONTRACTOR SHALL SUBMIT SHOP DRAWINGS TO STEWART, 101 N. TRYON STREET, CHARLOTTE NORTH
CAROLINA, 28202, TELEPHONE NUMBER 704-909-3516, THESE DRAWINGS ARE REQUIRED TO BE REVIEWED AND
APPROVED BY STEWART PRIOR TO ORDERING, PURCHASE OR FABRICATION OF THE RESPECTIVE ITEMS.
STEWART WILL REVIEW THE SUBMITTED MATERIAL AND RESPOND TO THE CONTRACTOR WITHIN TWO WORKING
DAYS OF RECEIVING SUBMITTAL.
CAST IN PLACE CONCRETE SPECIFICATIONS
CONCRETE FOR THE SPILLWAY RISER BASE SHALL MEET THE FOLLOWING MINIMUM SPECIFICATIONS:
1. THE MAXIMUM ALLOWABLE SLUMP SHALL BE 4 INCHES NO WATER SHALL BE ADDED TO THE MIXTURE AT THE SITE.
2. THE MINIMUM COMPRESSIVE STRENGTH SHALL BE 3,000 PSI AT 28 DAYS.
3. THE CONCRETE SHALL HAVE FROM 4 TO 6 PERCENT ENTRAINED AIR BY VOLUME
4. THE TOTAL CHLORIDE ION CONTENT OF THE CONCRETE FROM ALL SOURCES SHALL NOT EXCEED 0.08 PERCENT.
STEEL REINFORCEMENT SPECIFICATIONS
THESE SPECIFICATIONS REGARD THE STEEL REINFORCEMENT IN THE FOUNDATION FOR THE RISER FOUNDATION.
1. ALL STEEL SHALL BE GRADE 60 MINIMUM (60 KSI YIELD STRENGTH)
2. ALL REINFORCEMENT BARS SHALL BE No. 4.
3. STEEL SHALL BE PLACED AS INDICATED ON THE DRAWINGS.
4. ALL STEEL REINFORCEMENT SHALL BE FREE FROM LOOSE OR FLAKY RUST, SOIL, OIL, GREASE, PAINT OR OTHER DELETERI(
5. STEEL REINFORCEMENT AT THE SITE SHALL BE STORED ABOVE GROUND ON PLATFORMS, SKIDS OR OTHER SUPPORTS ANC
AND PROTECTED FROM MECHANICAL INJURY OR CORROSION.
6. ALL STEEL SHALL BE SHAPED BY THE MANUFACTURER IN ACCORDANCE WITH THE PROJECT REINFORCEMENT BAR SCHEDU
REINFORCEMENT BARS WILL BE ALLOWED.
7. ALL REINFORCEMENT STEEL SHALL BE PLACED IN ACCORDANCE WITH ALL REQUIREMENTS OF ACI 318-05
8. THE CONTRACTOR SHALL NOTIFY STEWART WHEN STEEL IS PLACED AND 24 HOURS PRIOR TO PLACEMENT OF CONCRETE F
STEEL.

DIRECTION 35.52434°N
234 deg(T) 081,01944°W
ACCURACY 5 m
DATUM WGS84
Sylvan Creek Dam breach 2018-10-11
16:05:54-04:00
DIRECTION 35.52403°N ACCURACY 5 m
278 deg(T) 081.019851W DATUM WGS84
a
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Sylvan Creek
Dam breach 2018-10-11
16:07:21-04:00
DIRECTION 35.52393°N ACCURACY 5 m
341 deg(T) 081.01979°W DATUM V.GS84
ti
: o
4
Sylvan Creek Dam breach 2018-10-11
16:07:05-04:00
DIRECTION 35.52395°N ACCURACY 5 m
305 deg(T) 081.02006°W DATUM WGS84
rrI"..
r
1 00-
a
Sylvan Creek
. Dam breach 2018-10-11
16:08:01-04:00

DIRECTION 35.52391°N ACCURACY 5 m
187 deg(T) 081.02005°W DATUM WGS84
3
t
x,
Sylvan Creek Dam breach 2018-10-11
16:08:13-04:00
DIRECTION 35.52342% ACCURACY 5 m
14 deg!T) 081.02009°W DATUM WGS84
Sylvan Creek
Dam breach 2018-10-11
16:12:41-04:00
DIRECTION
296 deg(T)
Sylvan Creek
35.52401°N
081.019991W
ACCURACY 5 m
DATUM WGS84
... -zV11 T111111111lu
Dam breach 2018-10-11
16:10:00-04:00
DIRECTION 35.52343°N ACCURACY 5 m
159 deg(T) 081.02008°W DATUM WGS84
N i \
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i r
Sylvan Creek Dam breach 2018-10-11
16:12:58-04:00