SW8051209_HISTORICAL FILE_20061114 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�,�6�iD
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

Michael F. Casley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, 1'.E. Director
Division of water Quality
November 14, 2006
Wilson Ki, President
Home Life, Inc.
PO Box 12615
Wilmington, NC 28405
Subject: Approved Plan Revision
Carolinian East
Stormwater Project No. SW8 051209
Onslow County
Dear Mr. Ki:
On August 28, 2006, the Wilmington Regional Office received a plan revision for Stormwater
Management Permit Number SW8 051209. The revisions include the regrading of the parking
lot such that an additional inlet into the permitted infiltration basin has been created on the
northeast side. No additional impervious areas have been created. It has been determined that
a formal permit modification is not required for the proposed changes. We are forwarding you
an approved copy of the revised plans for your files. Please replace the old approved plan
sheet C.3.2 with the new sheet C.3.2, rev.2, 8/22/2006.
Please be aware that all terms and conditions of the permit issued on ,January 31, 2006,
remain in full force and effect. Please also understand that the approval of this revision to
the approved plans for the subject State Stormwater Permit is done on a case -by -case
basis. Any other changes to this project must be approved through this Office prior to
construction. The issuance of this plan revision does not preclude the permittee from
complying with all other applicable statutes, rules, regulations or ordinances which may
have jurisdiction over the proposed activity, and obtaining a permit or approval prior to
construction.
If you have any questions concerning this matter, please do not hesitate to call me at (910)
796-7335,
Sincerely, _Z"
Linda Lewis
Environmental Engineer II
ENBlarl: S:IWQSISTORMWATERIPERMIT1051209PR.nov06
cc: Edward Burke, P.E., Cavanaugh & Associates
Onslow County Building Inspections
Linda Lewis
W ilmington' Regional Office
Central Files
None
rliCarolina
atura!!y
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: wkvw,ncwaterouality.org Fax [phone]
An Equal OpportunitylAffirmative Action Employer — 50% ReCyCledll0% Post Consumer Paper

August 28, 2006
Mrs. Linda Lewis
Division of Water Quality
North Carolina Department of Environment
And Natural Resources
127 Cardinal Drive
Wilmington, NC 28405
Re: SW8 051209-Carolinian East Modification
Dear Mrs. Lewis:
01
CAVANAU G H
Solutions thr.0-ugh integrity arm partricrsfrip
AUG 2 8 2006
C� �G
I hope this letter finds you well. I am writing on behalf of Horne Life, Inc to request a
modification to the referenced Stormwater Management Permit.
The grading plan for the parking lot was revised in an effort to reduce the fill required for
construction. Incidentally, the stormwater management system has been slightly
impacted. Originally, the entire parking lot was graded so that there was a consistent
slope that drained to the south corner of the parking lot. Runoff was collected in a
concrete channel and conveyed to a bypass box that feeds to the infiltration basin. The
revised grading plan resulted in the parking lot being crowned in the middle.
Consequently, the parking lot drainage is split and the runoff sheet flows to the south
and north corners of the parking lot. The southern stormwater infrastructure will remain
unchanged. To accommodate the flow that is now directed to the north, a concrete
channel similar to the southern system will be placed in the north corner of the lot to
carry the runoff to the infiltration basin. Additionally, a second bypass box, with the
same elevations and configuration as the first bypass box, will be placed to allow the
runoff to enter the basin as well as to direct the excess storm event to the ditch. As the
impervious area for the project was not increased, the design of the infiltration basin
itself was not modified.
Please find attached a modified sheet C.3.2. as well as a check for $420 to cover the
regular permit modification review. Additionally, to assist in your review, please also
find included a copy of the permitted. sheet C.3.2 (for the purpose of comparison).
Please feel free to contact me if I can be of any additional assistance or if you have any
questions.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
A�
Edward "Ted" Burke, P.E'.
Project Manager

P. 1
COMMUNICATION RESULT REPORT ( AOG.30.2806
FILE MODE OPTION
----- ----------------------
812 MEMORY TX
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
ADDRESS (GROUP)
------- 93924612
9: 42AM )
TTI
RESULT
-----------
OK
NCDENR WIRO
PAGE
--------P--1i1
E-2) BUSY
E-4) NO FACSIMILE'CONNECTION
Michuel F. Easley, Governor
William G, Ross Jr„ Secretary
Norrh Carolina Department of Dnvironmem and Natural Resaprces
FAX COVER SHEET
Date: August 30, 2006
To: Ted Burke, P.E.
Company: Cavanaugh & Associates
FAX #: [phone]
DWO Stormwater Project Number: SW8 051209
Project Name: Carolinian East
MESSAGE:
Ted:
Alan W, Klimck, RE, Director
Division of Water Quality
No. of Pages: 7 ;
From: Linda Lewis,,
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
The submitted application for the subject project will be reviewed as a plan revision therefore
the $420.00 fee is not necessary.
I am returning check no, 12777, dated August 1, 2006, to your attention via regular mail,
Linda

Michael F. Easley, Governor
William G, Ross Jr„ Secretary
North Carolina Department of Environment and Natural Resources
FAX COVER SHEET
Date: August 30, 2006
To: -Ted Burke, P.E.
Company: Cavanaugh &r Associates
FAX #: [phone]
DWQ Stormwater Project Number: SW8 051209
Project Name: Carolinian East
MESSAGE:
Ted
Alan W. Klimek, 11.E. Director
Division of Water Quality
t,
No. of Pages: 1
From: Linda Lewis
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
The submitted application for the subject project will be reviewed as a plan revision therefore
the $420.00 fee is not necessary.
am returning check no. 12777, dated August 1, 2006, to your attention via regular mail.
Linda
ENBlarl: S:1WQSlSTORMWATERIADDINF0120061051209.aug06
One
NorthCarolina
,117ali alIy
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 29405 Phone [phone] k5 Customer Service
WifminbtonRegional Offiice Internet: www.ncu'ateryualityorg, Fax [phone]
An Equal OpporlunitylAffirmative Action Employer 50% Recycled110% Post Consumer Paper

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�•�i1�,�\i,.li12777
1 4
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[J.
B"T
Branch Banking and Trust Company
HOME LIFE, INC. North Carolina'
P.0. BOX 12615 66-11215313
WILMINGTON, NC 28405
8/1/2006
PAY TO THE :
ORDER OF . NCDENR.
++
420.00
,. Four Hundred. Twenty and 00/100•.......:,*,,.,.*,,+.............t......,...,.t�....,;:��.,�.*.,..���.,,..,,.,*,...*
DOLLARS
'
NCDENR DWQ
,
FOR
Carolinian East'

12'F..
,._,.�:
HOME LIFE, INC.
12777
NCDENR 8/1/2006
Carolinian East
420.00
Checking 6427 Carolinian East 420.00

Apr. 5. 2006 3:i2PM Cavanaugh
Y
No. 034 i P.
CAVANAUGH
SOudbm through integr4 and pannanship
CAVANAUG H- & ASSOCIATES, P.A.
Consulting Engineers Q
130 North Front Street, Suite 202
Wilmington, North Carolina 28401
910/392-4462 Fax [phone]
www.cavanaughsolutions.com
Facsimile Cover Sheet
To: Vincent Lewis
Company: NCDENR - DWQ
Fax Number: [phone] /
From: Ted Burke q: 36
Date: 4/5/06
Project Number: 41 . 05 . 012 Carolinian East
No. of Pages (Including Cover): 3
Comments:
Vincent,
You tested this site on June 7, 2005 for the SHWTE. Since,that
time, the owner has had a chance to improve access at the site.
With better access available, I would like. -to have you confirm
the depth to the SHWTE at the exact location of the proposed
infiltration trench. Because of the previously limited site
access, you had to test an'area just northeast of the proposed
trench.
Thank you,
Ted Burke
cc:Wilson Ki, Home Life, Inc.

Apr. 5. 2006 3:13PM
Cavanaugh
No.0341 P. 2
INFILTRATION SITE VISIT REQUEST
Name of the Project
Carolinian East
Location (attach a clear vicinity map): Between N. Hines St . & Smith Rd.
Street address, SR number, community, etc.
Directions from the nearest major intersection: The Bite can be reached by Lraveling north
from Wilmington on US-17. At the intersection of NC-50, make a right turn
and travel south/east on NC-50 for approximately 0.25 miles. Make a left
turn onto North Hines Street and continue north for approximately 0.25 miles.
The site is located on the east aide of the street.
Owner/Applicant Name: Home Life, Inc.
Consultant Name: Cavanaugh & Associates, P.A.
Consultant Contact Information: Ted Burke, 910-619-1256 / 910-392-4612
Phone, fay, email, otc. [e-mail]
#1 #2 #3 #4 #5 #6 #7 #8
Existing ground elev. @basin/trench=
Bottom Elev. of infiltration basin/trench=
Existing ground minus bottom elev.=
Add 2' (max. bottom elevation)=
DatelTime of Soils Investigation :
Summary/Comments:
ca_' 22-Z4(
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.

Apr. �, 2006 3:13PM Cavanau_7h
No, 0341 P, 3
0
VICINITY MAP
NOT TO SCALE

MI
rA

P. 1
COMMUNICATION RESULT REPORT ( JAN.31.2006 4:59PM
TTI NCDENR WIRO
FILE — -----------7 MODE OPTION ADDRESS (GROUP) PAGE
-------------------------------------------------- -----------
493 MEMORY TX 93924612 P. 6/6
REASON FOR ERROR ----------
E-1) HANG UP OR LINE FAIL E-2) BUSY
E73) NO ANSWER E-4) 110 FACSIMILE CONNECTION
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor William G. Ross Jr., Secretary
FAX COVER SHEET
Date: //,:?/ a0 6 No. Of Pa excluding cover
---r -I / M-50
J. From.. C. lcirl;'p 30pej
CO.. CO: NCDENR
FAX FAX#: [phone]
REMARKS:
127 Cardinal Drive rvtanijorh Wilmingtan, N.C. 29405-3845 Toloplone [phone] F%x. [phone]
An Equal Oppationity A(rirmativeActlon Employer

RE: Carolinian East Stormwater Permit
Subject: RE: Carolinian East Stormwater Permit
From: "Edward Burke" <[e-mail]>
Date: Tue, 24 Jan 2006 16:02:12 -0500
To: "Robert Gordon" <[e-mail]>
Rob,
I misunderstood our conversation. Here you go.
-Ted
-----Original Message -----
From: Robert Gordon [mailto:[e-mail]]
Sent: Tue 1/24/2006 3:08 PM
To: Edward Burke
Cc:
Subject: Re: Carolinian East Stormwater Permit
I dont have the.plans in front of me but isnt the volume provided
something like 11,245 instead of the exact same as the design volume of
11,228?
Rob
Edward Burke wrote:
>Rob,
>
>Again, thank you for your prompt attention to our project. I apologize for confusing
the definition of the basin volumes. I changed the basin volume to 11,228cf per the design
stage/storage calculations_ I also corrected the erroneous bottom dimension to agree with the
stage/storage calculations (2,909sf). I spoke with on the phone and we agreed that the
supplement bottom dimensions should reflect the portion of the'basin where the floor of the basin
is flat. Therefore the basin length dimension was reduced from 462' to 247' (462' total length -
215' sloped bottom legth = 2471). The bottom elevation (a type-o) was also corrected to a value
of 52.0. I clarified with you on the phone that the DA note on Sheet 3.3 was acceptable. I also
clarified with you on the phone that you have Sheet 4.1 (single PDF contains both sheets).
>
>I'll have the hard copies sent over to you this afternoon, or tomorrow morning.
>Thank you for your assistance,
>Ted Burke
>
>
>
> -----Original Message -----
> > -----original Message -----
> From: Robert Gordon [mailto:Robert.Gordon@ncmail-nett
> Sent: Mon 1/23/2006 8:29 AM
> To: Edward Burke
> Cc:
> Subject: Re: Carolinian East Stormwater Permit
>
>
>
> Ted,
> The design volume is the required volume of the basin (which appears to
> be 11,228). The volume provided is the actual basin volume from the
> bypass weir to the bottom (which appears to be 11,245). The bottom
> dimensions should not be 5104sf, they should match the stage -storage at
> 2909sf. The bottom elevation was not corrected on the supplement. The
> DA not is fine on sheet 3.3. Sheet 4.1 was not attached but as long as
> the outlet weir elevation is changed to 53.4, it will be fine. The weir
> dimensions are fine, I believe those dimensions were noted on the plans
> I have, it just was not clear if they applied to the basin (grading) or
> the outlet channel/weir.
> After I get the hard copies, it should only take a day or so before you
> will have the permit. Thanks?
> Rob
>
1 of 2 1/31/2006 2:47 PM

RE: Carolinian East Storrnwater Permit
> Edward Burke wrote:
> >Rob,
> >
> >Please see the attached documents. These should address each of your
> >Comments. I also received your last email (regarding the drainage area)
> >and revised a sheet to address this. If you have any other questions,
> >please don't hesitate to contact me. My mobile number (or email) is the
> >best way to reach me. Thanks again for your attention to this project.
> >Thank You,
> > Ted
> ]
> >Edward "Ted" Burke, P.E.
> >Cavanaugh & Associates, P.A.
> >130 N. Front Street, Suite 202
> >Wilmington, NC 28401
> >www.cavanaughsolutions.com
> >[e-mail]
> >Phone; [phone]
> >Fax: [phone]
> >Mobile: [phone]
> >
> >----- original message -----
> >From: Robert Gordon[mailto:[e-mail])
> >Sent: Friday, January 20, 2006 4:18 PM
> >To: Edward Burke
> >Subject: Carolinian East Stormwater Permit
> >
> >Ted,
> >I still have just a few issues with the Carolinian East Stormwater
> >application.
> > * The basin size (bottom dimensions), basin volume (provided) and
> > bottom elevations appear incorrect on the supplement form.
> > * There is a weir invert elevation listed on detail 5/sheet 4.1 of
> > 53.63. I suspect this is a type-o and should be 53.4.
> > * I am a little confused as to what the dimensions of the outlet
> > weir (to the basin) out of the bypass structure. The inlet
> > channel is dimensioned 2.5' x 1'. Is the outlet channel the same
> > dimensions? There were some dimensions shown on the basin plan
> > (4'?). Please clarify.
> >
> >I can correct the supplement form if you let me know the correct
> >figures. The last two are all on the details sheet (C4.1); so if I
> >could get two copies of that sheet only with the above corrections, I
> >will go ahead and issue the permit. It is already drafted, so there
> >should not be much of a delay. Give me a call if you have any
> >questions. Thanks!
> >
> >Rob Gordon
> >Express Stormwater Permitting
> >[phone]
> >
> >
> >
>
>
>
>
Content -Description: SWU103_Infiltration_Basin—Suppleinent.pdf
SWU103_Infiltration_Basin_Supplement.pdf Content -Type: application/pdf
Content -Encoding: base64
2 of 2 1/31/2006 2:47 PM

'f
Re: ,arohn'tan East Stormwater Permit
Subject: Re: Carolinian East Stormwater Permit
From: Robert Gordon <Robert.Gordon@ncmail. net>
Date: Mon, 23 Jan 2006 08:29:10 -0500
To: Edward Burke <[e-mail]>
Ted,
The design volume is the required volume of the basin (which appears to be
11,228). The volume provided is the actual basin volume from the bypass weir to
the bottom (which appears to be 11,245). The bottom dimensions should not be
5104sf, they should match the stage -storage at 2909sf. The bottom elevation was
not corrected on the supplement. The DA not is fine on sheet 3.3. Sheet 4.1 was
not attached but as long as the outlet weir elevation is changed to 53.4, it will
be fine. The weir dimensions are fine, I believe those dimensions were noted on
the plans I have, it just was not clear if they applied to the basin (grading) or
the outlet channel/weir.
After I get the hard copies, it should only take a day or so before you will have
the permit. Thanks!
Rob
Edward Burke wrote:
Rob,
Please see the attached documents. These should address each of your
comments. I also received your last email (regarding the drainage area)
and revised a sheet to address this. If you have any other questions,
please dcn,t hesitate to contact me. My mobile number (or email) is the
best way to reach me. Thanks again for your attention to this project.
Thank You,
Ted
Edward "Ted" Burke, P.E.
Cavanaugh & Associates, P.A.
130 N. Front Street, Suite 202
Wilmington, NC 28401
www.cavanaughsolutions.com
[e-mail]
Phone: [phone]
Fax: [phone]
Mobile: [phone]
-----Original Message -----
From: Robert Gordon[mailtc:Robert. [e-mail]] Sent: Friday, January 20,
2006 4:18 PM
To: Edward Burke
Subject: Carolinian East Stormwater Permit
Ted,
I still have just a few issues with the Carolinian East Stormwater application.
* The basin size (bottom dimensions), basin volume (provided) and
bottom elevations appear incorrect on the supplement form.
* There is a weir invert elevation listed on detail 5/sheet 4.1 of
53.65. I suspect this is a type-o and should be 53.4.
* I am a little confused as to what the dimensions of the outlet
weir (to the basin) out of the bypass structure. The inlet
channel is dimensioned 2.5' x 11. Is the outlet channel the same
1 of 2 2/21/2006 3:12 PM

Re:'arol4lan East Stormwater Permit
dimensions? There were some dimensions shown on the basin plan
(4'?) . Please. clarify.
I can correct the supplement form if you let me know the correct figures. The
last two are all on the details sheet (C4.1); so if I could get two copies of
that sheet only with the above. corrections, I will go ahead and issue the
permit. It is already drafted, so there should not be much of a delay. Give me
a call if you have any questions. Thanks!
Rob Gordon
Express Stormwater Permitting
[phone]
2 of 2 2/21 /2006 3:12 PM

f
C. &\� .w.
e
CAVANAUGH
January 20, 2006
Mr, Robert Gordon
NCDENR Wilmington Regional Office
Stormwater Management
127 Cardinal Drive.Ext
Wilmington, North Carolina,28402
Re: The Carolinian East
C&A No: 41. 05. 012
SW8 051209
Dear Mr. Gordon,
I have reviewed your comments emailed January 20, 2006, Please find below your
comments in bold with my buIIeted responsesfollowing.
"The Basin size (bottom dimensions), basin volume (provided) and bottom
elevations appear incorrect on the, supplement form"
• You are correct with regard to the basin size, The correct basin dimension
is.ap proximately 462' x 11;05' = 5,,104 sf.
• The basin volume however is correctly listed at 14,562 cf. The design
volume, however; is 11245d. The design volume is 11,245 cf. Please
reference the attached calculations -(Stage Storage Calcs) for how the
design volume was determined, The difference'.between the basin volume
and the design volume is volume located�b'ttween the top of the basin and
the Io.p of the weir;
14, 562, cf -- 11,245 cf = 3,317.8 cf = (55. 25' =54. 6') x 5,104 sf
• The supplement formwas corrected and is:attached.
2; "There is a weir invert :elevation listed on ;detail 5lsheet. 4.1 of 53.65. I.
suspect this is a.type-o and should be 53.4."
• Correct, the -weir invert should be listed as 53.40. The change has been
made; I have attached. a PDF of the corrected sheet. A hard copy will be
delivered on Tuesday, January 24, 2006.
3. "1 am a. little confused as to what .the dimensions of: the outlet weir (to the
basin) out of the bypass structure. The inlet channel is dimensioned 2.5' x
1'. Is the outlet channel the same dimensions? There were some
dimensions shown on the basin plan (4'.?) Please clarify."
'The.channel entering the bypass box hasthe internal dimensions of
2. 5' x .1'. 0'
The channel from the bypass box tolhe basin has the internal dimension
of'4.0, x 1.5'.
• The channels do not have the same dimensions, The bypass/basin
channel Is a larger channel so as to minimize the effects of turbulence and
the change in flow direction,

Per your request, I have also included a revised Sheet C13.3 which notes that there is
one drainage area for this project which is consistent with the property boundary.
In summary, please find attached: a revised supplement form, a revised calculation
sheet, a P©F of the revised sheets C3.3 and C4.1. Two hard copies of the revised plan
sheets will be delivered to your office on Tuesday. Please do not hesitate to contact me if
you have any questions or comments. Thank you very much for your assistance with this
project.
Sincerely,
CAVANAUGH & ASSOCIATES, P.A.
Edward `Ted' Burke, P.F.

Carolinian East Stormwater Permit
Subject: Carolinian East Stormwater Permit
From: Robert Gordon <Robert.Gordo [e-mail]>
Date: Fri, 20 Jan 2006 16:18:21 -0500
To: [e-mail]
Ted,
I still have just a few issues wit the Carolinian East Stormwater application.
* The basin size (bottom di WSions), basin volume (provided) and
bottom elevations appear ihcorrect on the supplement form.
* There is a weir invert elevation listed on detail 5/sheet 4.1 of
53.65. I suspect this is a type-o and should be 53.4.
* I am a little confused as to what the dimensions of the outlet
weir (to the basin) out of the bypass structure. The inlet
channel is dimensioned 2.5' x 11. Is the outlet channel the same
dimensions? There were some dimensions shown on the basin plan
(4'?). Please clarify.
I can correct the supplement form if you let me know the correct figures. The last
two are all on the details sheet (C4.1); so if I could get two copies of that sheet
only with the above corrections, I will go ahead and issue the permit. It is
already drafted, so there should not be much of a delay. Give me a call if you
have any questions. Thanks!
Rob Gordon
Express Stormwater Permitting
[phone]
1 of 1 1/20/2006 4: 19 PM

Carolinian East (again)
Subject: Carolinian East (again)
From: Robert Gordon <[e-mail]>
Date: Fri, 20 Jan 2006 16:32:52 -0500
To: Ted Burke<[e-mail]>
Ted,
I thought of 1 more thing I need. A drainage area map. Even though there is only
one EMP, I still need one. One copy highlighted with a marker will be fine.
Thanks.
Rob Gordon
1 of 1 2/21/2006 3:12 PM

Carolinian East Stormwater Permit
Subject: Carolinian East Stonnwater Permit
From: Robert Gordon <[e-mail]>
Date: Fri, 20 Jan 2006 16:18:21 -0500
To: [e-mail]
Ted,
I still have just a few issues with the Carolinian East Stormwater application.
* The basin size (bottom dimensions), basin volume (provided) and
bottom elevations appear incorrect on the supplement form.
* There is a weir invert elevation listed on detail 5/sheet 4.1 of
53.65. I suspect this is a type-o and should be 53.4.
* I am a little confused as to what the dimensions of the outlet
weir (to the basin) out of the bypass structure. The inlet
channel is dimensioned 2.5' x 11. Is the outlet channel the same
dimensions? There were some dimensions shown on the basin plan
(4'?). Please clarify.
I can correct the supplement form if you let me know the correct figures. The last
two are all on the details sheet (C4.1); so if I could get two copies of that sheet
only with the above corrections, I will go ahead and issue the permit. It is
already drafted, so there should not be much of a delay. Give me a call if you
have any questions. Thanks!
Rob Gordon
Express Stormwater Permitting
[phone]
1 of 1 2/21/2006 3:12 PM

January 12, 2006
Mr. Robert Gordon
NCDENR Wilmington Regional Office
Stormwater Management
127 Cardinal Drive Ext.
Wilmington, North Carolina 28402
CAVANAU G H
through integrity and partnership
DEC 1 3�0%
Re: The Carolinian East
DEC 0 005
C&A No: 41.05.012 $Y;
SW8 051209
Dear Mr. Gordon,
I have reviewed your comments dated January 9, 2006. Please find below your
comments in bold with my bulleted,responses following.
1. "Please add a note indicating that all roof drains will be directed to the rear
(or side) concrete channel (or show roof drain lines)."
• A note indicating that the roof drain lines shall be directed to the concrete
channel is located on Sheets C.3.2 and C.4.1.
2. "The first (full) paragraph of page 3 of the narrative appears to contain some
incorrect information. Please correct."
The narrative has been corrected. Please see attached narrative.
3. "Please note - I have corrected the On -Site Parking impervious surface
amount listed on page 2 of the application to 38,408 sf. Please let me know if
the listed value of 34,408 was correct"
• The value of 34,408 sf listed on page 2 of the application was a typo. The
correct value of the on -site parking is 38,408 sf.
4. "Please note - I have completed the mailing address of Section VII of the
application to the known address for the engineer: 130 North Front Street,
Suite 202, Wilmington, NC 28401. If this is incorrect, please contact me."
• The address listed above is correct.
rmnnnnah k A—rintnc PA 17r) Fm r Ctr t Wilminumn Nr m4ni 9l0 797.44 A? rnr 9i0 797_4A 117 >vWw �....�.:....��--��••+s....- ----

5. "Please provide a flow spreader mechanism in the infiltration basin. The
long -linear shape of this basin makes it susceptible to sediment
accumulation near the inlet. This can minimize the effectiveness of the entire
basin and cause premature bypass. Please contact this office to discuss
options."
• As we discussed on Monday, January 9, 1 have improved the flow
distribution in the basin by sloping the first third (near to the inlet) of the
basin bottom.
53.40 - 52.0 = 1.40 ft
462 ft 13 = 154 ft
1.40 ft 1 152 ft = 0.92%
Vertical drop from inlet weir to
basin bottom
Length of sloped bottom equal
to total length of basin divided
by 3.
Slope of sloped basin bottom
6. "Please provide dimensions of the weir outlet to the infiltration basin (same
as concrete channel?)."
• The value of 34,408 sf listed on page 2 of the application was a typo. The
correct value of the on -site parking is 38,408 sf.
7. "The basin volume provided (on the supplement) does not appear correct.
Please provide an actual storage calculation. This can be in the form of a
stage -storage table."
+ The supplement form has been updated and is attached. A stage storage
calculation for the basin has also been attached.
8. "The top and storage elevations listed on page 1 of the supplement appear to
be reversed. Please correct."
The supplement form has been updated and is attached.
Please do not hesitate to contact me if you have any questions or comments. Thank
you very much for your assistance with this project.
Sincerely,
CAVANAUGH & ASSOCIATES, P.A.
i
Edward 'Ted' Burke, P.E.

W A7- Michael F. Easley, Governor
O G William G. Ross, Jr., Secretary
CO North Carolina Department of Environment and Natural Resources
Q Alan W, Klimek, P.E. Director
Division of Water Quality
January 9, 2006
Mr. Wilson Ki, President
Home Life, Inc.
PO Box 12615
Wilmington, NC 28401
Subject: Request for Additional Information
Stormwater Project No. SW8 051209
Carolinian East
Onslow County
Dear Mr. Ki:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Carolinian East on December 13, 2005 for a review date on January 5, 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:
1. Please add a note indicating t all roof drains will be directed to the rear (or side)
concrete channel (or show r f drain detail).
2. The first (full) paragraph f ge 3 of the narrative appears to contain some incorrect
information. Please correct.
3. Please note — I have corrected t `e n-Site Parking impervious surface amount listed on
page 2 of the application to 38, sf. Please let me know if the listed value of 34,408
was correct.
4. Please note — I have complete he mailing address of Section VII of the application to
the known address for the en neer: 130 North Front Street, Suite 202 Wilmington, NC
28401. If this is incorrect, please contact me.
5. Please provide a flow spreader mechanis in the infiltration basin. The long -linear
shape of this basin makes it suscepti le o sediment accumulation near the inlet. This
can minimize the effectiveness of the fire basin and cause premature bypass. Please
contact this office to discuss options.
6. Please provide dimensions of the weir , utlet to the infiltration basin (same as concrete
channel?).
7. The basin volume provided (on the supplement) does not appear correct. Please
provide an actual storage calculation. This can be in the form of a stage -storage table.
8. The top and storage elevations listed on page 1 of the supplement appear to be
reversed. Please correct.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Service1-877-623-6748
Wilmington Regional Office Wilmington, NC 28405-3845 FAX [phone] InlerneC h2o.enr.state.nc.us
An Equal Opportunity/Affirmative Action Employer— 50% Recycledl10% Post Consumer Paper
NorthCarolina
Natlltally

f' , - she Carolinian East
January 9, 2006
Stormwater Permit # SW8 051209
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 January 20, 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
ENBIRDG: S:1WQSISTORMWATERIADDINF0120051051209jan9
CC' Edward Burke, PE, Cananuagh & Associates
Robert D. Gordon

CAVANAUGH
Solutions through integrity and partnership
December 13, 2005
Mr. Paul Bartlett
Division of Water Quality
North Carolina Department of Environment
And Natural Resources
127 Cardinal Drive
Wilmington, NC 28405
Re. Carolinian East
Dear Mr. Bartlett;
7
Thank you for sitting down with me yesterday to run through the stormwater submittal
package for the Carolinian East project. Per our discussion, I have updated sheet
C.3.1. You will notice the that General Note #9 has been added to address the
wetlands. Also, please not that dimensions have been added to the far `right' building.
As the drawings you currently have are not considered accepted for submittal, please
simply replace your Sheet C.3.1 with the updated sheet enclosed. This should
complete the submittal package, based upon our discussion. If any other items are
outstanding or are considered inadequate, please notify me at your earliest
convenience.
Please feel free to contact me if I can be of any additional assistance or if you have any
questions.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
Edward "Ted" Burke, P.E.
Project Manager
RECEIVED
DEC 13 2005
BY:

ENVIRONMENTAL SERVICES, INC.
524 S. NEW HOPE ROAD
RALEIGH. NORTH CAROLINA 27610
919-212-1760 + FAX [phone]
www.esinacc
20 June 2005
Mr. Ted Burke, E.I.
Cavanaugh & Associates, P.A.
130 North Front Street, Suite 202
Wilmington, NC 28401
Re: The Carolinians East .ES1 Project # ER05-128.00
Preliminary Soil Evaluation
Onslow County, North Carolina
Dear Mr. Burke:
On 14 June 2005, Environmental Services, Inc., (ESI) conducted a preliminary soil
evaluation at The Carolinian East site Iocated in Holly Ridge, Onslow County, North
Carolina. This evaluation included the advancement of hand -auger borings in areas
previously determined by Cavanaugh & Associates. This evaluation included
determining the depth to seasonal high water as well as a preliminary estimation of the
infiltration rate of the soils present.
Available information reviewed prior to the field investigation included the U.S.
Department of Agriculture Soil Survey of Onslow County, North Carolina and the United
States Geological Survey (USGS) 7.5-minute topographic quadrangle (Holly Ridge, NC).
The topographic map and the soil survey mapping do not depict any surface water
features within the boundaries of the project site.
Soil Evaluation
Five soil borings were advanced to a depth of greater than 50 inches below the ground
.surface (BGS). The borings were characterized for the following criteria: texture; color;
structure; soil depth; depth and thickness of any restrictive horizon(s) if present; depth (if
present) of a seasonal high water table; and topography and landscape position (see
attached Soil Profile Description form).
The surface and subsurface horizons extended to depths ranging from 22 to 28 inches
BGS with textures of fine sand. Soil structure within the surface and subsurface horizons
was generally single -grain, loose structure. The subsoil horizons extended from 22 to 28
inches to greater than 72 inches BGS with textures of fine sand. Soil structure within
these horizons was generally massive structure with some lenses of single -grain, loose
structure.
JACKSONVILLE • ST. AuoUSTINE • COCOA • JUPITER • DESTiN • SAVANNAH • ATLANTA • RALEIGH • CHARLOTTE

ENVIRONMENTAL SERVICES, INC.
The Carolinian East
20 June 2005
Page 2 of 3
Restrictive horizons were observed within 72 inches BGS. Restrictive hozrizons in the
form of spodic horizons were observed at depths ranging from 18 to 28 inches BGS. The
restrictive horizons contained weakly cemented sands and cemented organic bodies.
Evidence of a seasonal high water table was observed at depths ranging from 18 to 24
inches BGS. This evidence included common, low chroma mottles (Munsell color 10YR
4/1) within the soil profile as well as the previously mentioned spodic horizons.
Topography at this location is generally flat with slopes ranging from 0% to 2%.
Infiltration Rate Estimates
Infiltration rate estimates were based on soil textures and structures as observed in the
field. These rates are also based on the permeability rates in the Soil Survey of Onslow
County, North Carolina. The infiltration rates below contain the rates for the surface and
subsurface horizons (0 to 18 inches BGS) and the subsoil horizons (18 to 72 inches
BGS). The most restrictive horizons observed in the field were located in the subsoil
horizons. The soil depths listed above are based on field observations.
The permeability rates published in the soil survey for the surface and subsurface
horizons for depths of 0 to 17 inches BGS are 6.0 to 20.0 inches/hour (in/hr). Based on
the soil texture (fine sand) and structure (single -grained, loose), the infiltration rates of
these soils are at least 6.0 in/hr. The soil depths listed above are from the soil survey
data.
The permeability rates published in the soil survey for the subsoil horizons 17 to 95
inches BGS are 0.6 to 6.0 in/hr. The subsoil horizons contain the most restrictive
horizons. The most restrictive horizons are the spodic horizons. These horizons contain
weakly cemented sands and exhibit massive soil structure. Additionally, the spodic
horizons are indicative of a fluctuating seasonal high water table. The cemented sands
and massive structure can impede the infiltration of water through the soil profile. The
infiltration rates of the subsoils are considerably lower and any design rates should not
exceed the published maximum rate of 6.0 in/hr. The soil depths listed above are from
the soil survey data.
Further investigation will be necessary to determine actual infiltration rates for the soils
present. Further investigation may include but not limited to in -situ saturated hydraulic
conductivity testing.

ENVIRONMENTAL SERVICES, INC.
The Carolinian East
20 June 2005
Page 3 of 3
Conclusion
ESI evaluated five soil borings and estimated the infiltration rates of the soils present on
The Carolinian East site. Evidence of seasonal high water tables was observed at depths
ranging from 18 to 24 inches BGS in the soil profiles. The estimated infiltration rates for
the surface and subsurface horizons are at least 6.0 in/hr. The estimated infiltration rates
for the subsoil horizons ranged from 0.6 to 6.0 in/hr.
Thank you for allowing EST to be of service to Cavanaugh & Associates, P.A. Please call
me if you have any questions.
Sincerely,
ENVIRONMENTAL SERVICES, INC.
C�
Josh Witherspoon, LSS
Senior Scientist

NCDENR
Nor h Carolina Department of Environment and Natural Resources
Division of-Lnd'Resources
James D. Simons, PG, PE' Land Quality Section Michael F: Easley; Governor
Director and State Geologist William G'. Rass Jr, Secretary
.8/1712005 ..
LETTER. OF APPROVAL WITH MODIFICATIONS -AND..
PERFORMANCE RESERVATIONS
Home Life, Inc .
Mr.". Wilson Ki, President _.. _.. ..
.PO -Box 12615
Wilmington, NC 28405
RE: Project Name: The Carolinian East, Preliminary Clearing and.Grading .,.Express RevieFv
Project 1D: Pende-2006-053
County/ Street: Pender, Smith Rd./ North Hines Street
River Basin: Cape Fear
Submitted By: Cavanaugh &-Associates
Date Received by LQS: August 16, 2005
Plan Type: NEW
Dear Mr. Ki:
This office has reviewed the, subject erosion and sedimentation control plan and hereby
issues this Letter of Approval with Modifications and Performance Reservations. A list of.the
modifications and reservations is attached., . This plan approval. shall expire three (3) years
following the date of approval, if no land -disturbing activity has been. undertaken, as is required
by Title 15A NCAC 4B .0129. Should the plan not perform adequately, a revised plan will be
required (G.S. 113A-54.1)(b),
Please be advised that Title 15A NCAC 4B.0118(a) requires that a copy of the approved
erosion control plan be on file at the job site. Also, you should consider this letter to give the
Notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure compliance
with the approved plan.
North Carolina'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
inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North
Carolina General Statute 113A-51 thru 66), this office may require revisions to the plan and
implementation of the revisions to insure compliance with the Act.
Wilmington Regional Office
127 Cardinal Drive Ext., Wilmington, North Carolina 28405-3845 • Phone: [phone] FAX: [phone]

Letter of Approval with Modifications and Performance Reservations
Mr. Wilson Ki
August 17, 2005
Page 2 of 4
Acceptance and approval of this -plan is conditioned upon your compliance. with Federal
and. State water quality laws, regulations, .and rules. In addition, local city or -county ordinances
or rules may also apply to this land -disturbing activity. This approval does not supersede any
other permit or approval.
Please be aware that your project -will be , covered by the enclosed NPDES General
Stormwater Permit NCGO1000 (Construction Activities). You should first become familiar with
all of the requirements for compliance with the enclosed general permit.
Please note that this approval is based in part on the accuracy of the information provided
in the Financial Responsibility Form, which you have provided. You. are requested' to file an
amended form if there is any change. in the information included on the form. -In addition, it
would-be helpful if you notify this office of the proposed starting date for this project. - Please
notify us if you plan to have a preconstruction conference.
-Your- cooperation is appreciated.
Sincerely,
1
Carol N. Miller
Assistant Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
Modifications and Performance Reservations
NPDES Permit
cc: -Mr. Edward Burke, P.E., Cavanaugh & Associates

Letter of Approval with Modifications and Performance-Reservation's
Mr. Wilson Ki
August 17, 2005
Page 3 of 4
MODIFICATIONS AND PERFORMANCE RESERVATIONS"!
Project Name: The Carolinian East
Project ID: •Pende-2006-053
County: Pender '
l . This plan approval shall expire three '(3)' years" following the date of approval, if no land
disturbing activity has been undertaken, as is required by Title 15A NCAC 413.0029.
2... The .developer. is responsible for the control of sediment on=site. If the 'approved erosion and
sedirrientation control measures prove insufficient; the developer must take those additional steps
necessary to stop sediment from leaving this site. - Each' sediment storage device must be
inspected after each storm- event. Maintenance and/or clean out is necessary anytime the device
is at 50% capacity.
3, Any and all existing ditches on 'this project site are. assumed to be left undisturbed by the
proposed' development unless otherwise noted. The removal of vegetation within any existing
ditch or channel is prohibited unless the ditch or channel is to be regarded with side slopes of 2
horizontal to l vertical or less steep. Bank slopes may be mowed, but stripping of vegetation is
considered new earth work and'is subject to the same erosion control requirements' as new
ditches.
4. The developer -is responsible for obtaining any and all permits and approvals necessary for the
development of this project prior to the 'coin mencement'of this land disturbing activity. This
could include agencies such as the Division of Water Quality's stormwater regulations, their
enforcement requirements within Section 401- of the Clean: Water: Act, the U.S. Army Corps of
Engineers' jurisdiction 'of Section 404 of the Clean Water- Act, ' the 'Division of Coastal
Management's CAMA requirements,' 'the Division of Solid Waste Management's landfill
regulations, the Environmental Protection Agency and/or The U'.S. ' Army Corps of Engineers
.jurisdiction -of the -Clean -Water Act, local County. or..Municipalities' ordinances, or others that
may be -required. This approval- cannot supersede any oti er permit or approval; however, in the
'case of a Cease and'Desist Order fro'M'the:Corps of'Engineers, that Order would only apply to
wetland areas. All highland would still have to be in compliance with the N.C. Sedimentation
Pollution Control Act.
5. If any area on site falls within the jurisdiction of Section 401 or 404 of the Clean Water Act, the
developer is responsible for compliance with the requirements -of the Division of Water Quality,
the'Corps of'Engineers and the Environmental Protection Agency (EPA) respectively. Any
erosion control measures that fall within jurisdictional wetland areas must be approved by the
aforementioned agencies prior to installation. The Land Quality Section must be notified of a
relocation of the measures in question to the transition point between the wetlands and the
uplands to assure that the migration of sediment will not occur_ If that relocation presents a
problem or contradicts any requirements of either DWQ, the Corps, or the EPA; it is the
responsibility of the developer to inform the Land Quality Section regional office so that an

Letter of Approval with Modifications and Performance Reservations
Mr. Wilson Ki
August 17, 2005
Page 4 of
adequate contingency. plan .can be made to assure sufficient erosion control retrains on site.
Failure to do so will be considered a violation of this approval.
6. Any borrow material brought onto this site must be from . a legally operated .mine..or other
approved source. A single use borrow site or an area to waste material is only, permissible if it is
operated under the total control of the Financially Responsible person or firm who is developing
this site and has been separately permitted and incorporated as part of this plan meeting all the
requirements of NC General Statue 74-49(7)f.
7. This permit allows for a land disturbance, as called for on the application plan, not to exceed
2.30 acres. Exceeding that acreage will be a violation.. of.this permit and would require a.
revised plan and additional application .fee: Any addition in impervious surface, over that
already noted on the approved plan,. would. also require a revised plan to verify the
appropriateness of the erosion control measures and stormwater retention measures.
8. The construction detail for the proposed silt fence requires reinforcing wire and posts a
maximum of 8.0 feet apart. Omission of the reinforcing wire is a construction change
.that necessitates more posts for support, i.e., the spacing. distance needs to. be reduced to no
greater than 6,feet apart.
9. ' Because the stormwater retention pond is.shown on the plan as the primary. sedimentation and
erosion control device on this project, it is necessary that the pond and it's. collection system be
installed before any other grading takes place on site. If that proves to be impractical, a revised
plan must be submitted and approved that addresses erosion and sediment control needs during
the interim period until the ponds are fully functioning.
1.0., A graveled construction entrance.must be located at each point of access and egress available to
construction vehicles during the grading and construction phases :of this .project. Access and
egress from the.project site at a point without a graveled entrance will be considered a violation
of this, approval. Routine maintenance of the entrances is critical.
1.1. The North'Carolina Sedimentation Pollution.Control.Act mandates.a shortened time frame in
which to re-establish vegetative groundcover. Slopes (including cuts, fills, and ditch banks) left
exposed will, within 15 working days or 30 calendar days (whichever is shorter) after completion
of any phase of grading, be planted or otherwise provided with gropndcover sufficient to
permanently restrain erosion.
12. Approval for this project is for preliminary clearing and grading only. A revised plan must be
submitted before any construction, including buildings and parking -lots are constructed.

9-C" ke'v) N -
I NCDENR Z
North Carolina Department of Environment and Natural Resources ���
127 Cardinal Drive, Wilmington NC 26405 [phone] FAX [phone] D
Request for Express Permit Review
FILL-IN all information below and CHECK required Permit(s).
FAX or email to Cameron. Weaver(o)ncmail.not 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 Ron Hodge
Company _ Home Life, Inc.
Address 102 Cinema Drive - A —City/State NC Zip 28403 County New Hanover
Phone [phone]_ _ Fax [phone] T Email _ron (Dluminarealty.com
PROJECT Name The Carolinian East
PROJECT SYSTEM(S) TRIBUTARY TO..Cypress Branch (STREAM NAME) _ Cape Fear RIVER BASIN
ENGINEER/CONSULTANT Edward "Ted" Burke
Company Cavanaugh & Associates, P.A. _
Address 130 North Front St, —City/State NC Zip 28401 County New Hanover
Phone[phone] —Fax [phone] Email vanauahofutions.com
State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑ Yes ® No
❑ STREAM ORIGIN Determination; # of stream calls; Stream Name
® STORMWA TER ❑ Low Density El High Density -Detention Pond El High Density -Other
Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter ® High Density -Infiltration ❑ Off Site
❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
® LAND QUALITY ® Erosion and Sedimentation Control Plan with 3 acres to be disturbed.
WETLANDS (401) Wetlands on Property ❑ Yes ® No Isolated Wetlands on Property ❑ yes ® No
Check all that apply Wetlands Will Be Impacted ❑ Yes ❑ No Wetland Impacts: 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 wIUSACOE ❑Yes ❑No I Permit received from USACE []Yes ❑No
401 Application required ❑Yes ® No €f 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.
For DENR use only
SUBMITTAL DATES: Fee Split for multiple permits:
SW
$
CAMA
$
LOS
$
401
$
Total Fee Amount $

VICINITY MAP
NOT TO SCALE

Date: November 18, 2005
Project Name: Carolinian East
C&A Proj # 041.05.012
Owner: Home Life, Inc.
PROJECT NARRATIVE
Site Description:
The Carolinian East is located in the Town of Holly Ridge, Onslow County.
The 2.19-acre site fronts on both Center Street and Smith Street. The site can
be reached by traveling north from Wilmington on US-17. At the intersection of
NC-50, make a right turn and travel south/east on NC-50 for approximately 0.25
miles. Make a left turn onto Center Street and continue north for approximately
0.25 miles. The site is located on the east side of the street.
The site is currently an undeveloped open grass area with heavy
vegetation along the east property line. The project site drains to the Cypress
Branch. Although at the outer perimeter, the site is within 1/2-mile radius of the
blue -line. This project is therefore has a watershed classification of SA:HQW.
Vincent Lewis (NCDENR-DWQ) tested the site for the seasonal high water
table elevation (SHWTE) on June 7, 2005 and found the average depth to
SHWTE to be approximately 22-in below ground surface (BGS) Mr. Lewis found
the site to be conducive to an infiltration type BMP. Independent soil analysis,
conducted by a soil scientist found the SHWTE range between 18-24-in BGS.
The independent soil scientist estimated an infiltration rate of up to 6-in/hr.
Project Description:
The project consists of constructing four condominium buildings with
associated parking. The parking/asphalt area will be approximately 37,500-ft2
and the combined rooftop area will be approximately 28 000-ft2. Improvements
supporting the primary development include approximately 500-If of gravity
sanitary sewer extension, approximately 650-If of water main extension, and the
installation of sidewalk.
Because of the watershed classification of the site, the project will employ
an infiltration type BMP. In specific, an infiltration basin will be used. Because of
complications with the layout, a vegetated filter was not employed. Instead, the
infiltration basin was designed to treat the first 2-in of rainfall.

Stormwater from the asphalt and sidewalk impervious area will be
collected by sheet flow to a curb -cut. The curb -cut then transitions into a
concrete channel that discharges into the BMP's bypass box. Runoff from the
buildings will be conveyed to the bypass box via PVC roof drain lines. The
bypass box will discharge rainfall in excess of the first 2-in to a ditch on the east
property line.

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