SW8960518_Compliance Evaluation Inspection_20170310

Energy Mineral &
Land Resources
ENVIRONMENTAL QUALITY
March 10, 2017
Beachwalk Homeowners Association, Inc.
c/o: Cindy Snead, HOA Manager
Network Real Estate, Inc.
1029 N. Lake Blvd.
Carolina Beach, NC 28428
Subject: Notice of Inspection — Compliant
Beachwalk at Kure Beach
State Stormwater Management Permit No. SW8 960518
New Hanover County
Dear Ms. Snead and Homeowners Association Members:
ROY COOPER
Governor
MICHAEL S. REGAN
SecMary
TRACY DAVIS
Director
On February 14, 2016, staff from the Wilmington Regional Office of the Division of Energy, Mineral and
Land Resources (DEMLR) inspected Beachwalk Subdivision, located in Kure Beach, New Hanover
County, to determine. the status of compliance with the State Stormwater Management Permit Number
SW8 960518 issued on September 9, 1996. DIMLR file review and site inspection revealed that the site
is in compliance with the terms and conditions of this permit. Please find a copy of the completed form
entitled "Compliance Inspection Report" attached to this letter, which summarizes the findings of the
recent inspection.
As indicated in the attached inspection report, the following deficiencies have been resolved:
• In general, erosion has been repaired and sodded on all the conveyance channels and around the
edge of the pond.
• The swale banks have been reshaped and reinforced with riprap in segment D-1 and D-3.
• A pipe has been installed along the swale centerline in segment D-4 to maintain hydraulic
connection always. Higher flows will pass over it.
• Both wet detention ponds have been mucked out and restored to the design conditions as shown
on the approved plans.
• Piping has been added in segment D-5 with a grassed overflow swale on top. The outlet has been
reinforced with riprap.
• The Town of Kure Beach has installed a new drainage system along the road with a new inlet to
the forebay of Pond 2.
• An engineer's certification with cover letter for the stormwater system has been provided (see
attached). Deviations from the approved plans & specifications are noted and/or described in the
cover letter.
As noted in the cover letter mentionedabove, the following changes (not shown on the plans) were made
to improve the system:
• A forebay has been installed at the discharge of pipe segment D-2 to help with pond maintenance.
• Drop inlets have been added to the shallow swale on top of the pipes in pipe segment D-2. This
will help control erosion in the swale.
• The existing drainage pipe on the east side of Pond 2 was extended approx. 20' to discharge into
the forebay portion of the pond.
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
Wilmington Regional office 127 Cardinal Drive Extension I Wilmington, NC 28405
910 71% 7215

State Stormwater Permit No. SW8 960518
Page 2 of 2
If you have any questions, please contact me at the Wilmington Regional Office, telephone number
[phone] or via email at [e-mail].
Sincerely,
Steven G. Pusey
Environmental Engineer
Enc: Compliance Inspection Report
Engineer's Certification
1 �GDS\sgp: \\\Stormwater\Permits & Projects\1996\960518 HD\2017 03 CEI_deficient 960518
t
cc: Matt Haley, PE — Cape Fear Engineering
Georgette Scott, Wilmington Regional Office Stormwater Supervisor
WiRO Stormwater Permit File
State of North Carolina I Environmental Quality 1 Energy. N•fineral and Land Resources
Wilmington Regional Office 1127 Cardinal Drive Extension I Wilinington, NC 28405
910796 7215

C om
APr FEwAtR
mo mho
ENGINEERING
February 15, 2017
Steve Pusey
Environmental Engineer
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington NC 28405
Subject: Final Stormwater Certification for Beachwalk Subdivision (SW8 960518)
Dear Mr. Pusey,
Please find the final stormwater certification for the Beachwalk Subdivision (SW8 960518) attached. As
discussed during our onsite inspection on February 14, 2017 several minor field adjustments were made
during construction. The most significant changes have been noted below.
1. Segment D1 was graded with slopes stepper than 3H:1V in order to preserve existing mature
Leland Cypress trees along the west bank, stay within the limits of the recorded easement, and to
match the depth of the existing roadway culverts. Additional rip -rap was added near the inlet pipe
from offsite until the location where the swale "straightened out" to reduce erosion potential. The
remaining portion of the swale was sodded with Bermuda and it stable.
2. At segment D2, a stormdrain collection structure was added to receive roadway runoff from
existing concrete flumes, reduce the depth of swale needed to convey runoff across the tops of the
pipes and to maximize depth of cover on top of pipes. Additionally, helical anchors and straps
were added to prevent floatation of pipes.
3. In Pond 1, at D2 inlet, a forebay berm was added to help capture sediment and reduce future
maintenance.
4. The existing roadway drainage pipe on the east side of Pond 2 was extended approximately 20-ft
to discharge into the forebay portion of the pond instead of the main pool.
I trust that this information is sufficient for your approval of this certification and closeout of previous
Notice of Violation. Once we receive confirmation from you that the project has received a compliant
report we plan on submitting for permit renewal.
If you have any questions or need any additional information, please contact me directly.
Sincerely,
Matthew Haley, PE E E IVE
Cape Fear Engineering, Inc. FEB 15
2017
Cc: File 275-64 "36"
BY.
151 Poole Road, Suite 100 • 8elville, NC 28451 • TEL: [phone] • FAX [phone]
www.capefearengineering.com
PA275\275-64 Beachwalk\Admin\STORMWATER\CERTIFICATION\2017-02-15 Beachwalk Certification - Cover Letter.doc

Compliance Inspection Report
Permit: SW8960518 Effective:07107116' Expiration: 05/21/18
Project.
Beachwalk @ Kure Beach
Owner:
Beachwalk Homeowners Association, Inc.
County:
New Hanover
Region:
Wilmington
Contact Person: Bill Bryan
Directions to Project:
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 -
On -Site Representative(s):
Adress: Dow Rd
City/State/Zip: Kure Beach NC 28449
Title: President Phone:
Related Permits:
SW8920807 Town of Kure Beach - Kure Dunes Phase II
SW8950709 Unknown Wim - Kure Dunes Phase III
Inspection Date: 02/14/2017 EntryTime: 10:00AM
Primary Inspector. Steven G Pusey
Secondary Inspector(s):
Reason for Inspection: Follow-up
Permit Inspection Type: State Stormwater
Facility Status: ® Compliant ❑ Not Compliant
Question Areas:
Q State Stormwater
(See attachment summary)
Exit Time: 12:30PM
Phone:
Inspection Type: Compliance Evaluation
page: 1

Permit: SW8960518 Owner - Project: Beachwalk Homeowners Association, Inc.
Inspection Date: 02/14/2017 Inspection Type Compliance Evaluation Reason for Visit: Follow-up
Inspection Summary:
As indicated in the attached inspection report, the following deficiencies have been resolved:
1. In general, erosion has been repaired and sodded on all the conveyance channels and around the edge of the pond.
2. The swale banks have been reshaped and reinforced with riprap in segment D-1 and D-3.
3. A pipe has been installed along the swale centerline in segment D-4 to maintain hydraulic connection always. Higher
flows will pass over it.
4. Both wet detention ponds have been mucked out and restored to the design conditions as shown on the approved
plans_
5. Piping has been added in segment D-5 with a grassed overflow swale on top. The outlet has been reinforced with
riprap.
6. The Town of Kure Beach has installed a new drainage system along the road with a new inlet to the forebay of Pond 2.
7. An engineer's certification with cover letter for the stormwater system has been provided (see attached). Deviations
from the approved plans & specifications are noted and/or described in the cover letter.
As noted in the cover letter mentioned above, the following changes (not shown on the plans) were made to improve the
system:
1. A forebay has been installed at the discharge of pipe segment D-2 to help with pond maintenance.
2. Drop inlets have been added to the shallow swale on top of the pipes in pipe segment D-2. This will help control
erosion in the swale.
3. The existing drainage pipe on the east side of Pond 2 was extended approx. 20' to discharge into the forebay portion
of the pond.
page: 2

Permit: SW8960518 Owner - Project: Beachwalk Homeowners Association, Inc.
Inspection Date: 02/14/2017 Inspection Type Compliance Evaluation Reason for Visit: Follow-up
File Review Yes No NA NE
Is the permit active? �l ❑ ❑ ❑
Signed copy of the Engineer's certification is in the file? ❑ ❑ ❑
Signed copy of fhe Operation & Maintenance Agreement is in the file?
■ ❑❑❑
Copy of the recorded deed restrictions is in the file? ❑ ❑ ❑ ❑
Comment: A new engineer's certification with cover letter for the stormwater system has been provided Deviations
from the approved plans & specifications are noted and/or described in the cover letter.
SW Measures Yes No NA NE
Are the SW measures constructed as per the approved plans? ❑ ❑ ❑
Are the inlets located per the approved plans? ❑ ❑ ❑
Are the outlet structures located per the approved plans? ❑ ❑ ❑
Comment: Except as noted in the Engineer certification.
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ❑ ❑ ❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to ❑ ❑ ❑
DWQ upon request?
Comment: 1. In general, erosion has been repaired and sodded on all the conveyance channels and around the
edge of the pond.
2. The swale banks have been reshaped and reinforced with riprap in segment D-1 and D-3
3. A pipe has been installed along the swale centerline in segment D-4 to maintain hydraulic
connection always. Higher flows will pass over it.
4. Both wet detention ponds have been mucked out and restored to the design conditions as shown on
the approved plans.
5. Piping has been added in segment D-5 with a grassed overflow swale on top The outlet has been
reinforced with riprap.
6. The Town of Kure Beach has installed a new drainage system along the road with a new inlet to the
forebav of Pond 2.
page: 3