SW8060308_HISTORICAL FILE_20060421

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
I� HISTORICAL FILE
C
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
C� �
YYYYMMDD

JBSC
NCDENR - Express Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405
LAfE Robert Gordon
LETTER OF TRANSMITTAL
DATE: April 21, 2006
PROJECT NO: 01 1-007
TASK NO:
RE: Sunset Marina
TRANSMITTAL NO: 1
PAGE 1 OF
WE ARE SENDING: x Originals ❑ Prints ❑ Shop Drawings ❑ Samples
❑ Specifications II Calculations Other - Applications
ications
Quantity
Drawing No.
Rev.
Description
Status
3
Revised Post Drainage Basin Map
G
3
Revised Stormwater Management Permit Application page 2
G
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review & Comments G. For Approval H. See Remarks:
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected - See Remarks
REMARKS:
RECETVED
APR 2 1 2006
BY:
7332 Cotesworth Dave Wilmington. NC Phone 1 a10-619-49W Fax [phone]M
cc: File Copy JBS C sulting, P
Signed

AS
PA
p�g ' ti' . • a4ioeiru ConshrlionMaxpaTient
April 13, 2006
Robert D. Gordon
NCDENT- DWQ
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
RE: Sunset Marina
Stormwater Project No. SW8 060308
Response to April 10 Comments
Robert:
7332 Cotesworth Drive
Wilmington, NC 28405
Phone.'910-619-9990
Fax: [phone]G
Email: [e-mail]
Attached is the re -submittal of the above referenced project. Inctuded below are responses to
the comments of your April 10, 2006 letter. Your comments have been included for ease of
reference.
1. Request for inrf7tration Basin Supplement.
This BMP Supplement its attached
2. Note on suitable sass in infr7tration basin # 1.
Note added to both the Sheet C2 and Sheet C4 (detcd sheet).
3. Please Est drainage area on the drainage area map.
I hove added the areas to the four drainage basins.
4. Please add a note to the plans indicafing that all roof drains wig be directed to the
permitted inhTfration systems.
Note added to Sheet C2 RE: Roof Drain routing.
Should you have additional questions please do not hesitate to call me.
Sin ely,
Bra Sedgwick, PE
Attachment: 2 - Revised Construction plans (Sheets C1, C2 and C4)
1 - Post Drainage Basin Map
2 — Basin 2 Supplemental firm
O-J z _<. "IU6
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* * * COMMUNICATION RESULT REPORT ( APR.11.2006 1:59PM ) * * *
P. 1
FILE MODE
- 002 MEMORYTX
OPTION
REASON FOR ERROR--------------------
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
5OK
CDENR WIRO
ADDRESS (GROUP) PAGE
-------------------------------- -----------------
919104011620 P. 1/1
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
FAX COVER SHEET
Date: April 10, 2006 No. of Pages: 1
To: Brad Sedgewick, PE From; Robert Gordon
Jeff Roney Express permitting section
Company: JBS Consulting FAX # [phone]
FAX #: [phone] Phone # [phone]
DWQ Stormwater Project Number: SW8 06030B
Project Name: JBS Consulting
MESSAGE:
There are just a few additional items I need before I can issue the permit for
Sunset Marina. Because there are only a few items, I am not planning to send
any further correspondence. There is no required return date, but please try to
return the modifications within two weeks. Please call if you have any questions.
Thanksl
• I mentioned this on the last fax I sent, but you may not have seen it. I
need to get an infiltration basin supplement for the bioretention area (basin
#2). Technically, there is supposed to be 2' of reparation between the
bottom of the fill layer and the SHWT for a bioretention area (which your

Date:
To:
Company:
FAX #:
FAX COVER SHEET
April 10, 2006 No. of Pages: 1 0.41
Brad Sedgewick, PE From: Robert Gordon
Jeff Roney Express permitting section
JBS Consulting FAX # [phone]
401-1620
Phone # [phone]
DWQ Stormwater Project Number: SW8 060308
Project Name: JBS Consulting
MESSAGE:
There are just a few additional items I need before I can issue the permit for
Sunset Marina. Because there are only a few items, 1 am not planning to send
any further correspondence. There is no required return date, but please try to
return the modifications within two weeks. Please call if you have any questions.
Thanks!
I mentioned this on the last fax I sent, but you may not have seen it. I
need to get an infiltration basin supplement for the bioretention area (basin
#2). Technically, there is supposed to be 2' of separation between the
bottom of the fill layer and the SHWT for a bioretention area (which your
system does not provide). This is a little unfair for a system without
underdrains, so I have to permit it as an infiltration basin (which only
requires 2' from the bottom of the storage pool). The bioretention O&M
plan you submitted will still be valid.
According to Vincent's field data, basin #1 has unsuitable soils from 20" —
48" (or from elev. 9.0 to 11.3). This is below the bottom of you basin and
will affect that basin's ability to infiltrate. This layer must be removed and
replaced with clean sand. Infiltration systems are not typically allowed in
fill, but Vincent feels the underlying, in -situ soils are good enough to allow
it.
Please list the drainage area on the drainage area map.
Please add a note to the plans indicating that all roof drains will be
directed to the permitted infiltration system.

• r •
March 28, 2006
Robert D. Gordon
NCDENT - DWQ
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
7332 Cotesworth Drive
Wilmington. NC 28405
Phone.[phone]
Fax: 910-401-I620
Email: Brad$edgwickQHotmail.com
RE: Sunset Marina — - - :Ala
Stormwater Project No. SW8 060308
i_
Robert:
(AAAMOUZI
Attached is the re -submittal of the above referenced project. Included below are responses to
the comments of your March 17, 2006 letter. Your comments have been induded for ease of
reference.
1. Please provide one copy of a drainage area map for the site. This map should show
and fist the DA for each of the BMP`s.
Attached is a drainage area map for your review.
2. Please dimension the entire project boundary. It was only partially dimensioned.
The attached plan has been revised to include the entire boundary information.
3. There were no contours provided for the South side of the property, they appear to be
clipped at the parcel # 1 boundary.
The missing contours are indicated on the attached revised plan.
4. There appears to be wetlands near the Southern project boundary. Please clarify. A
portion of the 50' vegetated filter (for basin #31 appears to be within the wetlands.
There are wetlands 0 the area you refer to, the attached plan has been revised to more clearly
indicate the Omits of the wetland. None of the 50' vegetated filler is in the wetlands, the revised
plan shows that area more dearly now.
5 Please correct the river basin listed on Section lA (2)of the application.
The corrected application is attached.
b. Please clarify the column fisted as "bash 4" on the application. There are only BMP`s
proposed. This column appears to be everything else.
That is correct basin 4 is everything else not inducted in basins 1, 2 and 3. Basin 4 is made up of
existing impervious surfaces that did not require a BMP but was used in the total project
impervious area calculation.

• Page 2
April 4, 2006
7. Please correct the vegetated frTier detarl.lt may have a maximum longitudinal slope of
5% not 5.1.
The detail has been corrected.
8. Please show the SHWr and storage/bypass elevation on the x section for the inffitrafion
basin(s).
I have added a table that indicated the SHWT, storage and the bypass elevation to the bio-
retention and infiltration basin detail.
9. Please correct the fiffe of the applicant. The He must be VP or higher.
10. Please provide a typical bypass structure detail
A bypass structure detail has been added to the plans.
11. Please note the following comments from the site visit by Vincent Lewis the DENR soil
scientist, and make any necessary changes to accommodate his findings. The borings
were taken at approximately the some locations as was marked on the ECS boring
log.
a. Basin 1-SHW depfh = 48" (ECS = 36"). Unsuitable sal from 20" to 48",
may be removed and backtiNed with clean sand Sand below 48".
b. Basin 2 -SHW depth = 55" (ECS = 48"). Unsuitable soil layer from 30"
to 41 ", may be removed and backfilled with clean sand (or sand
mw a for bioretention area).
c. Basin 3 - SHW depth = 51 " (ECS = 70"). AN soils suitable (sand).
The information has been noted and incorporated in to the plans.
Should you have additional questions please do not hesitate to call me.
Sincerely,
Jeff A. Roney
Senior Designer
Phone: (91 Q) 232-0359
Emal [e-mail]
Attachment 2 -- Revised Constu lion plans
2 — Revised S'WU-101 StornwrdW Management Permit Application
2 — Drainage Basin Map
2 — Revised Basin 3 Supplemental form

P. 1
* * * COMMUNICATION RESULT REPORT ( MAR.17.2006
FILE MODE OPTION
----------------------------
545 MEMORY TX
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
ADDRESS (GROUP)
------ 94011620
5:14PM ) * * *
TTI NCDENR WIRO
RESULT PAGE
----- --------------------
E-3)3)3)3)3) P. 0/3
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
FAX COVER SHEET
Date: March 17, 2006 No. of Pages: 3
To: Brad Sedgewick, PE From: Robert Gordon
P-6—
Express permitting s®ction
Company: JBS Consulting FAX # [phone]
FAX #: [phone] Phone # [phone]
DWQ Stormwater Project Number: SW8 060308
Project Name: Sunset Marina
MESSAGE:
Attached is the request for additional information for sunset {farina. The original
will be mailed to the applicant and a copy will also be mailed to you. please call
if you have any questions.
Please note Vincent's comments on the add -info letter. Please use the
more conservative of the 2 soils reports if possible. if not, go with
Vincent's findings.
The bioretention standard requires 2' of separation from the bottom of
the back#iil layer to the SHWT. This is reasonable where a BIB is
utilizing an underdrain (common in piedmont soils), but unreasonable
Y 1 •- ..I. . I..P•1."--,0-- -`----'--.-1 0^1 -r-`- - - -v -- a---_ 1� -

FAX COVER SHEET
Date: March 17, 2006 No. of Pages: 3
To: Brad Sedgewick, PE From: Robert Gordon
P4-
Express permitting section
Company: JIBS Consulting FAX # [phone]
FAX #: [phone] Phone # [phone]
DWQ Stormwater Project Number: SW8 060308
Project Name: Sunset Marina
MESSAGE:
Attached is the request for additional information for sunset Marina. The original
will be mailed to the applicant and a copy will also be mailed to you. Please call
if you have any questions.
=> Please note Vincent's comments on the add -info letter. Please use the
more conservative of the 2 soils reports if possible. If not, go with
Vincent's findings.
=> The bioretention standard requires 2' of separation from the bottom of
the backfill layer to the SHWT. This is reasonable where a BR is
utilizing an underdrain (common in piedmont soils), but unreasonable
when compared to the infiltration standard (2' of separation from the
bottom of the storage volume). I would like to permit BMP#2 as a
hybrid. Lets "officially" call it an infiltration basin — that allows a higher
SHWT. Please submit a supplement (not just the O&M agreement). I
will have to hold you to some of the bioretention standards though (ex.
Plant density, ponding depth etc...). If you do use backfill material
other than clean sand (and you may need to in order to get plants to
grow), please specify the mixture.
=> This project is going to require a fairly detailed re -review. I would like
to schedule a date for re -review (rather than just resubmit whenever —
as with a typical add -info). I have scheduled this project for re -review
on 3/30 (no additional fee). If you complete it sooner -- go ahead and
send it in.

Michael F. Easley, Governor
William G. Koss Jr., Secretan
North Carolina Department of Fnvironment and ;natural Resources
Alan W. Klimek, P.E. Director
Division of %Vaier Quality
March 17, 2006
Mr. Steve Shuttleworth
Colorado Coastal Development Company
7741 Market Street, Suite I
Wilmington, NC 28405
Subject: Request for Additional Information
Stormwater Project No. SW8 060308
Sunset Marina
Brunswick County
Dear Mr. Shuttleworth:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Sunset Marina on March 9, 2006. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the
stormwater review. /'
Please provide one copy of a drain g map for the site. This map should show
and list the DA for each of the BMP , X
2. Please dimension the entire projectlbAndary. It was only partially dimensioned.
3. There were no contours provided f6r the -So h side of the property. They appear to be
clipped at the parcel #1 boundary.L--"�
4. There appears to be wetlands near fhe_Sout erh n project boundary. Please clarify. A
portion of the 50' vegetated filter (fo�sin #3) appears to be within the wetlands.
5. Please correct the river basin listt-d on Section III (2) of the application.
6. Please clarify the column listed as "basin 4" on the application. There are only 3 BMP's
proposed. This column appears to be rything else.
7. Please correct the vegetat d ' ter detail. It may have a maximum longitudinal slope of
5%, not 5:1.
8. Please show the SHWT any storage/bypass elevations on the x-section for the
infiltration basin(s).
9. Please correct the title of the applita/tThe title must be VP or higher.
10. Please provide a typical pass structure detail.
NorthCarolina
✓Vaturall�
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Service 1-877-623-6748
Wilminetoil Regional Office Wilmington, NC 29405 Fax [phone] Intemet! ww .nmaterduality.org
An Equal Opportunity/Affirmative Action Employer - 50% Recycles /l0% Post Consumer Paper

sunset Marina
March 17, 2006
Stormwater Permit # SW8 060308
11. Please note the following comments from the site visit by Vincent Lewis, the DENR soil
scientist, and make any necessary changes to accommodate his findings. The borings
were taken at approximately the same locations as was marked on the ECS boring log.
a. Basin 1 — SHW depth = 48" (ECS = 36 .e soil from 20" to 48", may be
removed and backfilled with clean sandYfKw 48".
b. Basin 2 — SHW depth = 55" (ECS = 48").uitable soil layer from 30" to 41 ", may
be removed and backfiiled with clean sansand mixture for bioretention area).
Sand below 41
C. Basin 3—SHW depth = 51" (E S 70"). All soils suitable (sand).
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received by this Office prior to March 29, 2006, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal of
all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. All original
documents must be returned or new originals must be provided. Copies are not acceptable. If
you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Robert D. Gordon
Environmental Engineer II
ENB/RDG: S:IWQSISTORMWATERIADDINFO120061060308mar17
CC' Brad Sedgewick, PE
Robert D. Gordon

INFILTRATION SITE VISIT REQUEST
Name of the Project
Location (attach a clear vicinity map): :5c E 4) -v) < f�E�
Street address, SR number, community. etc.
Directions from the nearest major intersection!
Pam, ; ! 7
y f �4 LE t I
�1
Owner/Applicant Name-.
Consultant Name:
Consultant Contact information:
Phone, fax, email, etc.
#1 #2 #3 #4 #5 #6 -#7 #8
Existing ground elev. @basin/trench=
SHWT elev.=
SHWT plus 2' (max_ bottom elev.)=
Date[Time of Soils Investigation
Summary/Comments: _
All proposed infiltration areas and existing, active utility lines located within the proposed basin/trench
must be marked and flagged. If these areas are not flagged, the Soils Scientist reserves the right to
decline to do the investigation. If the proposed infiltration system will be located in an area of existing
pavement and there is no open area nearby, equipment capable of breaking through the impervious
layer must be provided. The soils investigation does not take the place of a soils report prepared by
an appropriate professional. The Soils Scientist will only verify the soil conditions that are reported in
the Soils Report, and make a determination as to the suitability of the site to meet the infiltration
design requirements under NCAC 2H.1000, and assumes no liability should, the system fail.

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PRELIMINARY PLAT /f�^v-,CONSULTING, PA
— -- SUNSET MAMMA

Infiltration Evaluation
Sunset Marina
Sunset Beach, North Carolina
ECS Project No. 22.11764
December 12, 2005
Location Depth SoiI Description
# 1 0-6" Dark Grey silty SAND
6"-12" Orange Clayey SAND
12"-36" Tan fine SAND
36"-48' Saturated Orange CLAY with little sand
Seasonal High Water. Table was estimated to be at 36" below the existing grade
elevation.
Infiltration Rate. 0.15inches per minute (8.9 inches per hour)
Test was conducted at 24 inches.
#2 0-6" Dark Grey silty SAND
6" -24" Tan Silty SAND
24"-48" StiffOrange CLAY
'Seasonal High Water Table was not identified up to.48" below land surface.
Infiltration Rate: 0.007 inches per minute (0.4 inches per hour)
Test was conducted at 24 inches.
#3 0-6" Dark Grey silty SAND
6"-72" Tan fine SAND
Seasonal High Water Table was estimated to be at 70" below the existing grade
elevation.
Infiltration Rate at 24 inches: 0.1 5 inches per minute (8.7 inches per hour)
Infiltration Rate at 48 niches: 0.13 inches per minute (7.9 inches per hour)

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JBSC
NCDENR - Express Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405
ATTENTION: Cameron Weaver
LETTER OF TRANSMITTAL
DATE: March 9, 2006
PROJECT NO: 01 1-007
TASK NO:
RE: Sunset Marina
TRANSMITTAL NO: 1
PAGE 1 OF 1
WE ARE SENDING: x Originals Z Prints ❑ Shop Drawings ❑ Samples
II Specifications Z Calculations Other - Applications
Quantity
Drawing No.
Rev.
Description
Status
3
D1, C1,C2, C3,&
C4
Construction Plans
G
3
Stormwater Calculations and Supporting Data Report
G
3
Stormwater Management Permit Application form
G
3
Infiltration Basin Supplement form for Basin #1
G
3
Infiltration Basin Supplement form for Basin #3
G
3
Bioretention System Operation and Maintenance Plan
G
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F- For Review & Comments G. For Approval H. See Remarks
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected - See Remarks
REMARKS:
Attached are 3 sets of plans and calculations for your review. The $4000.00 express review application fee
check has already been turned in when the S&E application that was made on the 28th of February.e.
RECEIVED
MN� V to looe,� Sr- -3j L 1 LLTN -
1133
$ �'
7332 Coteswo th Drive Wilmington, NC Phone [phone]M Fax [phone]
cc: File Copy S C
JB onsultrng, PA
Signed

` �� ,
.,-,�' , 4 1.
y '

t
4
®NAB
NCDENR
V rLtc North Carolina Department of Environment and Natural Resources
127 Cardinal Drive, Wilmington NC 28405 [phone] FAX [phone] t�l
Request for Express Permit Review ,
FILL-IN all information below and CHECK required Permit(s).
FAX or email to Cameron. [e-mail] along with a narrative and vicinity map of the project location.
Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made.
APPLICANT Name —Steve Shuttleworth„ Authorized Agent
Company _Colorado Coastla Development Copany
Address-7741 Market Street, Suite I City/State_Wilming ton, NC_Zip_28405_ County —New Hanover
Phone_910-686-4194 Fax_910-686-0733 Email steveshutt@aol..com
PROJECT Name —Sunset Marina (Town Homes)
PROJECT SYSTEM(S) TRIBUTARY TO_Calabash_(STREAM NAME) _Lumber River RIVER BASIN
ENGINEER/CONSULTANT
Company JBS Consulting, PA
Address 7332 Cotesworth Drive City/State—Wilmington, NC Zip_28405 County —New Hanover
Phone_910-619-9990 Fax_910-401-1620 [e-mail]
-----------------------------------------------------------------------------------------------------------------------------------
State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑ Yes XNo
-----------------------------------------------------------------------------------------------------------------------------------
❑ STREAM ORIGIN Determination; # of stream calls; Stream Name
❑ STORMWA TER
❑ Low Density ❑ High Density -Detention Pond ❑ High Density -Other
Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter X High Density -Infiltration ❑ Off Site
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
X COASTAL
❑ Excavation & Fill ❑ Bridges &Culverts ❑ Structures Information
MANAGEMENT
- - - - - - - - - - - - - - - - - -
❑ Upland Development ❑ Marina Development ❑ Urban Waterfront X Demo Only
- - - - -
- - - - - - - - - - - - - - -
X LAND QUALITY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - -
X Erosion and Sedimentation Control Plan with 1.15 acres to be disturbed.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
WETLANDS (401)
Wetlands on Property X Yes ❑ No Isolated Wetlands on Property X yes ❑ No
Check all that apply
Wetlands Will Be Impacted ❑ Yes X No Wetland Impacts: _0 Acre(s)
Wetlands Delineation has been completed ❑ Yes ❑ No ❑ Buffers Impacted: Acre(s)
USA COE Approval of Delineation completed ❑ Yes ❑ No
404 Application in process w1USACOE ❑Yes []No I Permit received from USACE ❑Yes ❑No
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
401 Application required ❑Yes X No If Yes, ❑ Regular ❑ Express
Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for
subsequent reviews due
to the insufficiency of the permit applications.
SUBMITTAL DATES
SW
CAMA
LOS
401
, For DENR use only
Fee Split for multiple permits;
Total Fee Amount $

INFILTRATION SITE VISIT REQUEST
Name of the Project
Location (attach a clear vicinity map): C j C orE�
Street address, SR number, community, etc.
Directions from the nearest major intersection: /l i'v 1 4 t
N _� 1 c)�Ii ce; AC 17 Z_`F i N Ne-30
Owner/Applicant Name:
Consultant Name:
Consultant Contact Information:
Phone, fax, email, etc,
Existing ground elev. @basin/trench=
SHWT elev.=
SHWT plus 2' (max. bottom elev.)=
DaterFime of Soils Investigation :
ly - 1-101 -
#1 #2 #3 #4 #5 #6 #7 #8
Summary/Comments:
JAj v0 4- v c U _J 1,� j Ii r �'J 751�5i� S
A &-; D ., / _ -3 t 0 :?::�7 E ."J _Il'3"J , 1 L 5 ) /S
All proposed infiltration areas and existing, active utility lines located within the proposed basin/trench
must be marked and flagged, If these areas are not flagged, the Soils Scientist reserves the right to
decline to do the investigation- If the proposed infiltration system will be located in an area of existing
pavement and there is no open area nearby, equipment capable of breaking through the impervious
layer must be provided. The soils investigation does not take the place of a soils report prepared by
an appropriate professional. The Soils Scientist will only verify the soil conditions that are reported in
the Soils Report, and make a determination as to the suitability of the site to meet the infiltration
design requirements under NCAC 2H.1000, and assumes no liability should the system fail.

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ENGINEERING CONSULTIX6 SERVICES, LTD.
3i Geotechnical • Construction Materials m Environmental
December 16, 2005
Mr. Brad Sedgwick
JBS Consulting
7332 Cotesworth Drive
Wilmington, North Carolina 28405
Re: Infiltration Evaluation
Sunset. Marina
Sunset. Beach, North Carolina
ECS Project No. 22.11764
Dear Mr. Sedgwick,
Engineering, Consulting Services, Ltd. (ECS) recently conducted an inRltration evaluation for
.the proposed infiltration ponds at the proposed Sunset Marina at. 1358 Beach Road in Sunset
Beach, North Carolina. This letter, with attachments, isthe report of our investigation.
FiOd,Iuvestigations
On December: 12, 2005, ECS conducted an investigation of the subsurface soil and ground
water conditions at the'three requested locations shotvn.on the attached Site Diagram., The
purpose of this investigation was to obtain subsurface information. of the suitability of the in -
place soils for the proposed infiltration ponds. We investigated the subsurface soil and ground
water conditions by advancing three hand auger borings into the existing ground surface at the
requested test locations. We visually classified 'the subsurface soils and obtained representative
samples of each soil type encountered. We also recorded the bmound Water.level observed at the
time of the hand auger- boring. The attached Infiltration Evaluation Form provides a summary
of -the subsurface conditions encountered at the hand auger boring locations.
Ground water was encountered at the time of our exploration at test location #1 at a depth of 36
inches and at test location #3 at a depth of 72 inches below the existing grade elevation. The
seasonal high ground water level (SHWL) was estimated to be at a depth -of 36 inches for test
locations #1 and at a depth of 70 inches below existing surface grade for test locations #3.
Ground water- and the MWL were not encountered at test location �#2 were the, boring was
terminated at 48 inches due to encountering a very stiff clayey soils.
We hiive°.conductedinfiltration tests near our hand auger borings to estimate infiltration rates for
the, subsurface soils. The infiltration tests were requested to be conducted at two and four feet at
each test location. The four foot infiltration tests were not conducted at locations#1 and #2 due
to saturated soil conditions and non permeable clay soil conditions, respectively. The results of
the tests.are summarized on the Infiltration Evaluation Form and are also listed below.
721 1 Ogden Busine5� Park • Suite 201 " Wilmington, NC; 2841 1 ° 010) 686-91 14 • Fax [phone]

N
Infiltration E�atuatiori
Stlnset.Marina
Sunset Btrach, Norih.Carolina
ECS Project No. 22.1 1764
Field Test Results
At test location {rl, the infiltration test was performed at 24 inches in a tan fine SAND and
indicated a calculated infiltration rate of 0.15 inches per minute (8.9 inches per hour). At test
location #2, the infiltration test was performed. at 24 inches in a brown silty SAND and
indicated a calculated infiltration rate of 0.007 inches per minute (0.4 inches per hour). At test
location 43, the first infiltration test was 'performed at 24 inches in a tali fine SAND and
indicated a 'calculated -infiltration rate.. of 0.15 inches per nunute (8:7 inches per hour), and the
second it�ltration. test was performed at 48 inches in a tan fine SAND and indicated an
infiltration rate of 0.13 inches per minute (7.9 inches per hour).
If you leave any, questions. regarding this report, please contact us at (910) 686-91 14.
Respectfully,
ENGINEERING CONSULTING SERVICES, LTD.
K. Brooks Wall
Staff Geologist
Attachments: Site Diagram
. infiltration Evaluation
Walid M.. Sobh, 3. E.
Principal r3ngineer
NC License No. 22983

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Infiltration Evaluation.
Sunset Marina
Sunset Beach, North Carolina.
ECS Project No. 22.11764
December 12, 2005
Location Depih Soil Descri ti.on.
# l 0-6" Dark Grey silty SAND
6"-12" Orange Clayey SAND
12"-36" Tan Mine SAND
36"48' Saturated Orange CLAY with little sand
Seasonal High Water Table was estimated to be at 36" below the existing grade
elevation.
Infiltration Rate: 0.15inches per minute (8.9 inches per hour)
Test was conducted at 24 inches.
#2 0-6" Dark Grey silty SAND
6"-24'' Tan Silty SAND
24"-48 Stiff Orange CLAY
Seasonal High Water Table was not identified up to 48" below land surface.
Infiltration Rate: 0.007 inches per minute (0.4 inches per hour)
Test was conducted at 24 inches.
#3 0-6" Dark Grey silty SAND
6"-72" Tarr fine SAND
Seasonal High Water Table was estimated to b_ e at 70 below the existing grade
elevation.
Infiltration Rate at 24 inches: 0.15 inches per ininute (8.7 inches per hour)
Infiltration Rate at 48 inches:
0.13 inches per minute(7.9 inches per hour)

State Stormwater Management Systems
Permit No. SW8 060308
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Mr. Steve Shuttleworth & Colorado Coastal Development Company
Sunset Marina
1358 Beach Drive, Calabash - Brunswick County
FOR THE
construction, operation and maintenance of 2 infiltration basins and 1 bioretention area
in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules") and the approved stormwater management plans and specifications
and other supporting data as attached and on file with and approved by the Division of
Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until April 21, 2016, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 & 1.7 on page 3 of this permit. Infiltration basin
1 has been designed to handle the runoff from 8,513 square feet of impervious
area. Infiltration basin 3 has been designed to handle the runoff from 4,409
square feet of impervious area. The bioretention area has been designed to
handle the runoff from 10,542 square feet of impervious area. Each BMP must
be operated with a 50' vegetated filter.
3. The tract will be limited to 28,132 square feet , as per approved plans. There is
no impervious area available for future development in this permit.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
Page 2 of 8

State Stormwater Management Systems
Permit No. SW8 060308
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system. 4,668
square feet of existing impervious area will be allowed to remain untreated.
6. The following design criteria have been provided in the infiltration basin and must
be maintained at design condition:
7
Ohits
,Basin #1'
' Basin#3
Drainage Area
Onsite
Offsite
Acres
ftz
ft2
0,21
0.21
0
0.12
0.12
0
Total Impervious Surfaces
ft
8,513
4,409
Basin Depth
feet
1.5
1.5
Desi n Storm
inches
1.5
1.5
Bottom Elevation
FMSL
12.0
13.5
Permitted Surface Area
Bottom
ft2
440
193
Permitted Storage Volume
ft3
990
524
Storage/Bypass Elevation
FMSL
13.5
15.0
Expected Infiltration Rate
inlhr
8.9
8.7
Time to Draw Down
hours
.126
.156
Type of Soil
r°x, y'£
Pactolus
soil type
Receivin Stream
-P:.: '_';='
. Calabash River
stream
River Basin
Lumber
river basin
Stream Index Number
15-25-13
stream index #
Classification of Water Body
"SA;HQW"
I "stream class"
7. The following design criteria have been provided in the bioretention area and
must be maintained at design condition:
Units
BioretentionAreai
Drainage Area
Onsite
Offsite
Acres
ft2
ft2
0.30
0.30
0
Total Impervious Surfaces
ft2
10542
Max Ponding Depth
feet
1
Design Storm
inches
1.5
Bottom Elevation
FMSL
13.0
Permitted Surface Area @Bottom
ft2
1048
Permitted Storage Volume
ft
1260
Storage/Bypass Elevation
FMSL
14.0
In -Situ Soil Infiltration Rate
inlhr
0.40
Time to Draw Down
hours
36.01
Total Required Plants
Woody
Shrub
stems
24
6
18
Mulch Layer Depth
inches
3
Receiving Stream
stream
River Basin
river basin
Stream Index Number
stream index #
Classification of Water Body
"stream class"
Page 3 of 8

State Stormwater Management Systems
Permit No. SW8 060308
8. The planting soil media for the bioretention area must be a loam, sandy loam or
loamy sand as described by the USDA soil textural triangle and as described on
the approved plans. The minimum infiltration rate of the planting soil must be
0.52 inches/hour. The planting soil media in the bioretention area must maintain
nutrient levels adequate fbr the growth of the plant species specified on the
approved plans.
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
6. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
7. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility. The bioretention area may not be used as
a sediment and erosion control device once the planting soil has been placed.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW8 060308
9. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
Ill. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or may not
be approved. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW8 060308
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued this the 21st day of April, 2006.
NORT,KCAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for A[an W. Klimek P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8

State Stormwater Management Systems
Permit No. SW8 060308
Sunset Marina
Stormwater Permit No. SW8 060308
Brunswick Countv
Designer's Certification
I, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW8 060308
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
.3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Delaney Aycock, Brunswick County Building Inspections
Page 8 of 8

C200601700358 SOSID: (1823045
Date Filed: 1/20/2006 8:13:00 AM
Elaine F. Marshall
North Carolina Secretary of State
C200601700358
State of North Carolina
Department of the Secretary of State
APPLICATION FOR CERTIFICATE OF AUTHORITY
Pursuant to §55-15-03 of the General Statutes of North Carolina, the undersigned corporation hereby
applies for a Certificate of Authority to transact business in the State of North Carolina, and for that
purpose submits the following:
I. The name of the corporation is COLORADO COASTAL DEVELOPMENT COMPANY; and
if the corporate name is unavailable for use in the State of North Carolina, the name the corporation wishes
to use is: NIA
2. The state or country under whose laws the corporation was organized is: COLORADO
3. The date of incorporation was JANUARY 7, 2004, its period of duration is: PERPETUAL.
4. Principal office information: (Select either a or b.)
a. The corporation has a principal office.
The street address and county of the principal office of the corporation is:
Number and Street 7741 MARKET STREET, UNIT I
City, State, Zip Code WILMINGTON, NC 28411 County NEW HANOVER
The mailing address, if different from the street address, of the principal office of the corporation
is:
b. The corporation does not have a principal office.
5. The street address and county of the registered office in the State of North Carolina is:
Number and Street 7741 MARKET STREET, UNIT I
City, State, Zip Code WILMINGTON, NC 28411 County NEW HANOVER
b. The mailing address, if different from the street address, of the registered office in the State of North
Carolina is:
7. The name of the registered agent in the State of North Carolina is: STEVE SHUTTLEWORTH

C200601700358
8. The names, titles, and usual business addresses of the current officers of the corporation are
(attach if necessary):
Name Title Business Address
RENE MONDEJAR, III PRESIDENT 620 SOUTH CASCADE:, SUITE
101, COLORADO SPRINGS,
CO 80903
H. LOWELL MOORE VICE-PRESIDENT 620 SOUTH CASCADE, SUITE
101, COLORADO SPRINGS,
CO 80903
STEVE SHUTTLEWORTH VICE-PRESIDENT 7741 MARKET STREET, UNIT
I, WILMINGTON, NC 28411
Attached is a Certificate of Existence (or document of similar import) duly authenticated by the
Secretary of State or other official having custody of corporate records in the state or country of
incorporation. The Certificate o Existence must be an original and less than six
months old.
APPLICATION FOR CERTIFICATE OF AUTHORITY
10. if the corporation is required to use a fictitious name in order to transact business in this State, a
copy of the resolution of its board of directors, certified by its secretary, adopting the fictitious name is
attached.
11, This application will be effective upon filing, unless a delayed date and/or time is specified:
This is the � day of January, 2006.
NAME OF CORPORATION
COVMndcj*ar,
COA AL DEVELOPMENT COMPANY
By:Ren11 , Pres nt
NOTES:
]tiling fee is $250. This document must be filed with the Secretary of State.

C200601700358 --�
OFFICE OF THE SECRETARY OF STATE
OF THE STATE OF COLORADO
CERTIFICATE
1, Ginette Dennis, as the Secretary of State of the State of Colorado, hereby certify that,
according to the records of this office,
COLORADO COASTAL DEVELOPMENT COMPANY
is a
Corporation
farmed or registered on 01/07r2004 under the law of Cobrado, has complied with all applicable
requirements of this office, and is in good standing with this office. This entity has been
assigned entity identification number 2004IM4647 .
This certificate reflects facts established or disclosed by documents delivered to this office on
paper through 01/06020M that have been posted, and by documents delivered to this office
electronically through 01/11/2006 @ 19:27:43
I have affixed hereto the Great Sea] of the State of Colorado and duly generated, executed,
authenticated, issued, delivered and communicated this official certificate at Denver, Colorado
on 01/11/2006 @ 19:27:43 pursuant to and in accordance with applicable law. This certificate is
assigned Confirmation Number 6388173.
Secretary of State of the State of Colorado
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NC DENR - DIVISON OF WATER QUALITY
.0310 LUMBER RIVER BASIN
classification
Name of Stream Description Class Date Index No.
Calabash River From source to North SA;HQW
Carolina -South Carolina
State Line
Hangman Branch From source to Calabash SA;HQW
River
Atlantic Ocean The waters of the Atlantic SB
Ocean contiguous to that
portion of the Waccamaw
River Drainage Area of the
Lumber River Basin extending
from the Cape Fear River
Basin to the North
Carolina -South Carolina
State Line
12/01/63 15-25-13
12/01/63 15-25-13-1
12/01/63 99-{I)
2B .0300
+ This symbol identifies waters that are subject to a special management strategy specified in 15A NCAC 2B
.0225 the Outstanding Resource Waters {ORW) rule.
Note: "CA" means critical area.
22

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may he photocopied for use as an original
_DWQStormwater Mannement Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit' application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : V 0JG 1
Contact Person:
N 'ri pi Clow", tk>-
tj 1 c6 , 7 C Phone Number: ` )b 61 `l' `9 70
This worksheet applies to: Basin No. _ Z- _ in Drainage Area
(as identified on plans)
Z
(from Form SWU-101)
11. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
inl r cf/hr/sf (circle appropriate units)
fmsl (Seasonal High Water Table elevation)
�inch
c.f.
•.� days
C] ft. x
c.f.
3 fmsl
1 fnisl
finsl
(1.5 inch event for SA waters, I inch event for others)
fk = l ��� sq. fk (bottom dimensions)
&" , 1 S
U
G,S

HL REQUIRED JTEMS CHECKI.1<ST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, Febnwy 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
VL b. System is located at least 100 feet from water supply wells-
.11? c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DWQ approval has been obtained.
f System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way-
g. Drainage area for the device is less than 5 acres.
h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
( i. System caphnres and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H: V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided
m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided
2 n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
c o. Flow distribution mechanism within the basin is provided.
�— p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
r" System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
Form SWU-103 Rev 3.99 Page 2 of 3

• IV. INFILTRATION BASIN OPERATION AND MA MNANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded -areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment unit is reduced to 75% of the original design depth. The system shall be restored to the
original design depth without over -excavating. Over -excavating may cause the required water table
separation to be seduced and may compromise the ability of the system to perform as designed. Removed
sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will
adversely impact water quality (i.e. stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads O. af feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment emit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design £unction, other storarwater
control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title:
'�-rFEV}
F.r1 7
Address:_'
Date_ _ , Z? -,2 e _
Note.- The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
, ( resident of hye}�subdiviission has been named the president.
I, (l �t_ P ! ! l U,I�T, a Notary Public for the State of kde- &CC,&-6 U Y1 Q , County of
HWgOyer+r , do hereby c�;ertify that fly appeared be ore me this d3
day of 0(, , and acknowledge the due execution of the forgoing ir► itration basin maintenance requirements.
Witness r"{p official seal,
P. M&. ���4
Y*AA'(-
s1W ,> t�otarV1 . 6 ' My commission expires �� a
Public �Q�4•V =
Forrff ��9 Page 3 of 3
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