SW8070319_Historical File_20100607

A11
10�e
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
June 7, 2010
Jon Vincent, Managing Member
Hwy. 421 Properties, LLC
1508 Military Cutoff Road, Suite 302
Wilmington, NC 28403
Subject: Approved Plan Revision
Wolseley, N.A. — US Hwy 421 Project
Stormwater Project No. SW8 070319
New Hanover County
Dear Mr. Vincent:
Dee Freeman
Secretary
On April 26, 2010, the Wilmington Regional Office received a plan revision for
Stormwater Management Permit Number SW8 070319. The revisions include
reallocating existing and proposed built -upon areas to the wet detention pond, as shown
in the following table:
Impervious Surface
Permitted Allocation
Pond
Modified All
Pond
On -site building
70,365
70,365
Street (fire access)
5,815
0
Parking
67,050
67,050
Parking lot / storage
0
0
Sidewalks
4,500
4,500
Future — Phase 2
240,185 *
122,700 **
Future — Phase 3
NA
123,300
Includes parking lottstorage (107,605 sf) & parking over infil. Trench (-2,250 so
** Includes parking lottstorage, parking over infil. trench, & fire access (5,815 so
It has been determined that a formal permit modification is not required for the proposed
changes. We are forwarding you an appproved copy of the revised plans for your files.
Please replace the old approved plan sheet(s) with the new one(s).
Please be aware that all terms and conditions of the permit, issued on January 28
2010, remain in full force and effect. Please also understand that the approval of t� is
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.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] FAX: [phone]. Customer Scrvlw:1-877-623-6748
Internet www.ncwaterquality.org
One
Noi thCaralina
An Equal Opportunity 1 Affinna6ve Action Employer

Jon Vincent
Wolseley, N.A. — U.S. Hwy. 421 Project
June 7, 2010
If you have any questions concerning this matter, please do not hesitate to call
Georgette Scott or me at [phone].
Sincerely,
Steve G. Pusey
Environmental Engineer
GDS\sgp: S:1WQS\STORMWATER\PERMIT\070319PR.jun10
cc: Jay R. Carmine PE — Coastal Land Design, PLLC
McKinley D. Dull — McKinley Building Corp.
New Hanover County Building Inspections
Steve Pusey
Wilmington Regional Office
Central Files
Page 2of2

J k:?0703 r `f
Project Name: kaoft9 Wx� - Reviewer: Date:
Project Received Date: t - Acce ted/Re e-c ed, circle one
Project Location: KSAdd info required (yes/no), Date received:
a .'N
Rule(s) Subject (check all that ap y); Symbols for completing form: '✓'= Yes/OK: ' x'= No/Deficient 'n/a' or'1' or 'I
❑ 1995 Coastal ❑ 2008 Coastal ❑ Phase II 13 Universal
Paperwork:
® Check for $505 (must be no older than 6 months)
L3 Application form with correct/original signatures (original plus 1 copy). If Corporation or LLC also:
o Print the info from the NCSOS
o Either, 1.) The applicant is listed on the NCSOS with his/her correct title or, 2.) A notarized letter of
authorization has been provided:
❑ Supplements (1 original per BMP). BMP type(s):
® O&M with correct/original signatures (1 original per BMP, except level spreaders/filter strips and swales)
Q Deed restrictions (if outparcel or subdividing) (original plus 1 copy)
o Deed restriction template (signed and notarized) or
o Proposed Declaration of Covenants and Restrictions (signed and notarized)
® Soils report identifying the SHWT
❑ Supporting calculations, signed & sealed (if necessary)
El Receiving stream classification: , If SA or ORW also:
o SA: USG ap with the site, the rec . Jng waters and the % mile radius shown to scale.
o OR W: ft of WL for Area of Env.iron . ental Concern and max BUA per rule.
® Modifications: .) If built: De signer's Cal't*2.)Fa ally built: Partial Cert., 3.) If not buil No Cert. needed.
Development Type (c eck all that pply): ��
L Residential or Co -mer iI ❑ Deed restrictio m h?
© Subdivision or Si Lot ❑ De d r t io h?
© High Density r ensity e r tri o match?
0 Offsite project r_2 Redevelopment ❑ U Exempt
0 NCG02 (bulkhead) 0 NCG03 ( r g N} ( ear)
Density:
(3 BUA calculations include common areas, lubh ewalks, etc.
U BUA %: _ , Matches high/lo a requirement for rule and receiving stream class.
® No obvious math errors
0 If High Density: Design storm correct for rul nd receiving stream class.
Plans, signed and sealed; (2 sets):
® Two sets received 11 Layout (with proposed BUA dimensions)
D Grading 0 Drainage area map (all HD systems & curb outlet swales)
Q Vicinity snap U Project Boundaries O-Legend
® Wetlands:
o Delineated on plans o "No wetlands onsite" on plans
0 Details:
o Roads o Cul-de-sacs o Curbing o Sidewalk
o BMPs/ Level spreaders/ Filter strips/ Curb outlet swales o Buildings (Apts or Condos)
Offreite Projects:
0 Designer's Certification has been submitted for the Offsite BMP receiving the runoff from the project.
® Deed restrictions have been recorded and a copy submitted for the Offsite BMP permit.
❑ Lot size has not changed from what was approved under the Master Plan.
U Correct lot number is referenced on the supplement form.
® Offsite system is in compliance with its permit, if known.
Onfaltretlon Projects:
® Soils report: SHWT, soil type, and expected infiltration rate are provided.
!� DWQ has conducted a site visit? Date:
91fat Ponds: Permanent Pool !!Beets One of the Following:
❑ Is located no lower than 6" below the estimated SHWT.
® Incoming groundwater is quantified and evaluated, AND Storage volume verified, AND Outlet evaluated for free
drainage to the receiving waters under SHWT conditions.
Decision (check one):
❑ Complete: Return file to admin (Jo Casmer) to log in. (Stamped in received date = BIMS date)
n Slightly i.^,comp!ete: E-mail consultant, request information to be returned within one business day (24 hours after
request. Info requests on Friday, allow a return on the following business day). If info not returned, issue an
application return letter and give everything to admin. (Add info received date = BIMS date)
C" Subsiandaily incomplete: issue an application return letter and give everything to admin.

Coastal Land Design, PLLC
Civil Engineering/Landscape Architecture
Land Planning/Construction Management
To:
NCDENR — Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
(910) 796 — 7215
Attn:
Kelly Johnson, P.E.
❑ As Requested
❑ Sent via Mail
RECID A PR It 5, 2010
Date: I April 23, 2010
File: 650-04
Subject: PLAN UPDATE FOR WOLSELEY, N.A.
U.S. HIGHWAY 421 PROJECT
(SW8 070319MOD)
❑ For Your Files ❑ For Distribution ® For your Review / Action / Approval
❑ Sent via Courier
Quantity
Drawing No.
Description
1
Original
Plan Update Submittal Letter
1
Original
Stormwater Certification for Phase -I Construction
3
Rev-4
Plan Update for Site (No Modification to BMPs or BUA)
pR2
10
REMARKS I Please contact our office if you have any questions or concerns.
650-04 Transmittal NCDENR-DWQ 042310.doex

Coastal Land Design, PLLC
Civil Engineering/Landscape Architecture
Land Planning/Construction Management
April 21, 2010
NCDENR — Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Attn: Kelly Johnson, P.E.
APR 2 6 2010
Re: Plan Update for Wolseley, N.A. — U.S. Highway 421 Project (SW8 070319-MOD)
Dear Ms. Johnson:
On January 28, 2010, a permit was issued for this project for a total of 387,915sf of impervious
to be directed towards an on -site stormwater pond and 6,250sf of impervious to be directed
towards an on -site infiltration trench. On those plans,153,980sf of BUA was to be installed as
part of Phase -I and the remaining impervious was to be installed as later phases. Please refer to
the Engineer's Certification for Phase-1 that is included with this submittal.
It was planned that the later phases would: -be further down the road before construction;
however, the prospective tenants of the building have requested that some of the future
additions be installed as a part of their signing agreement. We are submitting updated plans
that show Phase-11 which will be the expansion of the storage yard and the addition of one
parking bay. These areas were preliminarily shown on the permitted set as future. However, the
final dimensions are shown on Sheet SW-01A that is included with submittal. The full plan set
has been updated with the inclusion of Phase-11 (sheet SW-01A). Phase -I has been constructed.
The Phase -II modifications do not change the stormwater that is being directed towards the on -
site infiltration trench. The trench is unaffected by Phase-11. There also is no increase in
impervious area or drainage area being directed towards the existing on -site stormwater pond.
So, the pond is unaffected by Phase-11. However, the impervious allocation breakdown has been
modified. The current permitted allocations and the proposed modified allocations to the
stormwater pond are shown below in the table.
Impervious Surface
Permitted Allocation (Pond)
l Modified Aiiocation (Pond)
On -Site Building
70,365sf
70,365sf
On -Site Streets
5,815sf
-0-
On -Site Parking
67,050sf
_ _
189,750sf
On -Site Sidewalks
4,500sf
4,500sf
Other On -Site (Future)
240,185sf
123,300sf
Off -Site
-0-
-0-
r t
f

The only other difference with this modification that was not shown on the permitted set is that
there is an additional parking bay that is to be installed on the South side of the building. Again,
the allowable impervious is reallocated to accommodate the change and to. remain compliant
with the permit. As a result of the additional parking bay, the project area needed to be
increased by approximately 10,800sf. Fortunately, with the site grading required to complete
Phase -II, there was no change to the size of the permitted drainage basin. The "property area",
which is actually "project area" for this site since the permit is only tied to part of the overall
property boundary, increased from 13.8686 acres to 14.1158 acres. As a result, the overall
density decreased from 65.25% to 64.10%. At some point in the future, the remaining area to
the South of this project and North of the adjacent development will submit for a separate off -
site stormwater permit to SW8 050217. However, as with the previously permitted project, that
is not part of this plan update either.
Thank you and please feel free to contact me should you have any questions or concerns
regarding this project.
Sincerely,
Jay R. Carmine, P.E.
Coastal Land Design, PLLC
P.O. Box 1172
Wilmington, NC 28402
(910) 254 — 9333 x 1005
(910) 254 — 0502 — Fax
[e-mail]

Lewis,Linda
From: Lewis,Linda
Sent: Tuesday, March 30, 2010 3:42 PM
To: 'Jay Carmine'
Subject: RE: major vs minor modification
Jay
If the pond size will not be increasing, the added DA will be a minor mod in Express. Minor mods are reviewed
in Express at Y2 of the original Express fee, which is $2000.00 in this case.
Linda
Please note my new email address is [e-mail]
Linda Lewis
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 28405
910-796-7215
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.
From: Jay Carmine [mailto:[e-mail]]
Sent: Tuesday, March 30, 2010 1:55 PM
To: Lewis,Linda
Subject: RE: major vs minor modification
Ok, thank you for clarifying that for me. I did a quick check of the pond design. In order to meet the County's pre and post discharge
requirements, the pond is already much larger than required per the State's stormwatcr rules. The additional drainage area is basically
insignificant on the pre -post modeling as well. As a result, it appears that no modifications will be required to the pond for the plan
modification.
It appears that this project will indeed fall under the express system as a minor modification. Is the cost for an express review of a
minor modification still $2,000 for high density projects?
Sincerely,
Jay Carmine, P.E.
Coastal Land Design, PLLC
P.O. Box 1172
Wilmington, NC 28402
(910) 254 - 9333 x 1005
(910) 254 - 0502 Fax
bZ://www.coastallanddesip-n.net
From: Lewis,Linda [mailto:[e-mail]]
Sent: Tuesday, March 30, 2010 1:33 PM
To: Jay Carmine
Subject: RE: major vs minor modification
Jay:

There is 240,185 sf of Future BUA available for this project. Since the last modification was done under the
2008 rules, there is no Major vs. Minor issue to consider as far as the rules go. A determination as to whether
a project is a major or a minor modification would be needed only if it was permitted under a different set of
rules than the 2008 coastal rules.
The project would be just a routine standard "modification" in the regular program, because you are adding
drainage area and will need to recalculate the minimum pond surface area and volume based on the new
larger drainage area and the permit will have to be rewritten to reflect the changes.
The project would only qualify as a minor mod in the Express program only if the pond size did not have to be
increased to accommodate the larger drainage area. If the size of the pond has to be increased, then it's just a
regular modification for Express.
Linda
Please note my new email address is [e-mail]
Linda Lewis
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 28405
910-796-7215
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.
From: Jay Carmine [mailto:[e-mail]]
Sent: Tuesday, March 30, 2010 10:04 AM
To: Lewis,Linda
Subject: RE: major vs minor modification
Sure. It is the Wolseley- Hwy 421 project (formerly, Ferguson Distributors). SW8 070319MOD.
Sincerely,
Jay Carmine, P.E.
Coastal Land Design, PLLC
P.O. Box 1172
Wilmington, NC 28402
(910) 254 - 9333 x 1005
(910) 254 - 0502 Fax
bM://www.coastallanddesim.net
From: Lewis,Linda [mailto:[e-mail]]
Sent: Tuesday, March 30, 2010 10:04 AM
To: Jay Carmine
Subject: RE: major vs minor modification
Before I give you an answer, please let me know the permit number.
Thanks,
Linda
Please note my new email address is [e-mail]
Linda Lewis
NC Division of Water Quality

127 Cardinal Drive Ext.
Wilmington, NC 28405
910-796-7215
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.
From: Jay Carmine[mailto:[e-mail]]
Sent: Tuesday, March 30, 2010 9:21 AM
To: Linda Lewis
Subject: major vs minor modification
Linda;
We have a project that we will have a slight land plan modification (a small parking area will be added). We will be modifying the
drainage basin slightly to account for the additional parking area but not the overall impervious to the permitted BMP. The drainage
area to be permitted will increase from approximately 540,OOOsf to 555,OOOsf (less than 3% change). The overalLpermitted
impervious, however, will remain the same. To do this, there will be a reduction in the future impervious allocation for this project.
Would this modification be considered as major or minor? It would be permitted as fast -track if was considered a minor modification,
which I'm hoping. Thank you for your guidance and I hope you have a nice day.
Sincerely,
Jay Carmine, P.E.
Coastal Land Design, PLLC
P.O. Box 1172
Wilmington, NC 28402
(910) 254 - 9333 x 1005
(910) 254 - 0502 Fax
http://www.coastaHanddesi2n.net