20140822 Ver 1_More Info Received_20140417

Burdette, Jennifer a
From: Neal Tucker <NTucker @stimmelpa.com>
Sent: Thursday, April 17, 2014 2:18 PM
To: Burdette, Jennifer a; Tom Davis
Subject: RE: 13 -114 Variance Request - Additional Information - Blue Diamond Investment
Company
Attachments: Blue Diamond Variance Request - WQC Questions Answered R2.pdf
C WN91111okk
stimmel
LANDSCAPE ARCHITECTURE I CIVIL ENGINEERING I LAND PLANNING
J. Neal Tucker, P.E. Partner/ Director oil' vil Engineering
336.723.1067 x104 I cell: 336.817.2524
601 N. Trade St. Suite 200 1 Winston - Salem, NC 27101
www.stimmelpa.com
.5aa'rnrnel +v,bociaate'v. 1F // , F- aaxaaal l)a'sa lairner
From: Burdette, Jennifer a [ mailto :Jennifer.Burdette @ncdenr.gov]
Sent: Thursday, April 17, 2014 12:39 PM
To: Tom Davis; Neal Tucker
Subject: RE: 13 -114 Variance Request - Additional Information - Blue Diamond Investment Company
Neal - Please incorporate the first two bullet points of Tom's response into your letter. We'll save the last point for the
presentation.
Jennifer A. B
401/Buffer Coordinator
401 . Buffer Permitting,
Wetlands Branch
NCDENR - Division of Water Resources - Water Quality Programs
1650 Mail Service Center
Raleigh, NC 27699 -1650
(919) 807 -6364 phone
(919) 807 -6494 fax
1

*Email correspondence to and from this address may be subject to the North Carolina Public Records Low and may be disclosed to
third parties unless the content is exempt by statute or other regulation.*
From: Tom Davis [mai Ito: tdavisCa)leainc.com]
Sent: Thursday, April 17, 2014 12:11 PM
To: Burdette, Jennifer a
Cc: Neal Tucker
Subject: FW: 13 -114 Variance Request - Additional Information - Blue Diamond Investment Company
It was good to talk to you a few minutes ago. At your request, I have initiated a discussion with my client regarding the
applicability of Executive Order 13514, signed in October 2009. The resolution of this issue may take several days (or
weeks) because the question will also have to be raised to the VA for their opinion. But in the mean time, I can offer my
initial impressions regarding the applicability.
I hope that helps. I will continue to pursue final resolution of the applicability of EO 13514 to our site, but I don't believe
this issue should affect the current variance request (for the Blue Diamond site.)
!�1
From: Neal Tucker [ mailto:NTucker(a)stimmelpa.com]
Sent: Thursday, April 17, 2014 9:26 AM
To: Burdette, Jennifer a (jennifer.BurdetteCa)ncdenr.Qov)
Cc: Ana Jaramillo (AJaramillo(a)toknc.com); Jeff Hunter (jhunter popecompanies.com); 'Hank Perkins'
(hank(a)eastcoastcapital.net); Homewood, Sue (sue.homewoodCa)ncdenr.Qov); Tom Davis
Subject: 13 -114 Variance Request - Additional Information - Blue Diamond Investment Company
Jennifer,
Attached you will find my letter addressing the Committee's questions, with revisions to #1, #2 & #3. Please review and
let me know if you think this more adequately answers the Committee's questions.

Thanks
Neal
C wMilikkk
stimmel
LANDSCAPE ARCHITECTURE I CIVIL ENGINEERING I LAND PLANNING
J. Neal Tucker, P.E. Partner/ Director oi�f' :mnmi Engineering
336.723.1067 x104 I cell: 336.817.2524
601 N. Trade St. Suite 200 1 Winston - Salem, NC 27101
www.stimmelpa.com
.5aa'rnpnel +v,bociaate'v. 1F // , F- aaxaaal l)a'sa laairner
Spam
Not seam
Forget previous vote

Stimmel
9; V
April 16, 2014
Ms. Jennifer Burdette
401 /Buffer Coordinator
401 & Buffer Permitting Unit
Wetlands Branch
NCDENR — DWR
1650 Mail Service Center
Raleigh, NC 27699 -1650
Subject: Answers to Questions from the Water Resources Committee Regarding the
Blue Diamond, LLC Variance Request
Dear Ms. Burdette,
Stimmel Associates, P.A. is working as an engineering consultant to Blue Diamond Investment Company, LLC for their
property east of the Veterans Administration Hospital in Kernersville. The purpose of this letter is to address questions
from the Water Quality Committee outlined in your e-mail to Ana Jaramillo with the Town of Kernersville dated April 7,
2014. The questions / additional information requested and answers are as follows:
1. Conceptual plan of BMP on the VA site to handle all stormwater from upslope.
A: A conceptual plan of a BMP located on the VA Hospital site sized to handle all stormwater from both the VA
site plus all upslope properties is not available. There was never a consideration to build a single BMP to handle
all stormwater runoff for a number of reasons. Building a single BMP sized to handle all runoff places a financial
burden on the VA Hospital due to the need to purchase more land to accommodate a larger BMP. There are
difficulties with having multiple owners responsible for constructing and managing a single BMP, such as how are
the construction costs and maintenance costs for each party equitably determined, and in situations where
liabilities arise, such as a drowning, how are the liabilities shared. Building a single BMP sized to handle all runoff
could pose a greater threat to water quality in the event of a failure of the BMP by 1) releasing a greater volume of
sediment into the Deep River at the time of failure, and 2) stormwater from the drainage area would receive no
treatment at all while the BMP is being repaired. Building a single BMP sized to handle all runoff could pose a
greater threat to stream degradation at the point if discharge into the Deep River, since flows from the combined
drainage area would likely be at a higher flow rate and velocity, and for a longer duration. Discharges from two
BMP's would enter the stream at different points, at lower flow rates and velocities, and for shorter durations. A
single, larger BMP would be more difficult and expensive to clean and maintain than two smaller BMP's. It is
generally accepted that stormwater treatment is more efficiently provided closer to the source of the pollution (in
this case sediment) than further from the source.
2. Cost difference between the VA treating only their stormwater vs. treating all stormwater from upslope.
A: Since there was never a consideration for combining stormwater treatment into a single BMP for all properties
draining to the VA site, the cost difference of providing combined treatment versus separate treatment was not
determined.
3. Conceptual plan and design of BMP for Blue Diamond site including calculations used to size the BMP.
A: See the attached Drainage Area Map by Stimmel Associates with backup calculations. This drawing
60,11 fit, Trade Streal Suite, 2114
ffim t n Sotern„ NC 271101.2916
R 336723,1067 F: 336323 1069

Blue Diamond Property
Stormwater Management Variance Request
September 27, 2013
Page 2
represents a single wet detention pond to handle runoff in the developed condition. The pond is sized to provide
90% TSS removal. Per the NCDENR BMP's Manual, the pond will also provide some nutrient removal (25% total
nitrogen, 40% total phosphorus), however nutrient removal is not required by the Randleman Watershed Rules.
The plan does not represent the two separate BMP's that would be required for the pre - developed condition due to
the site topography. Providing two BMP's would represent higher initial construction cost as well as higher
maintenance cost. It is unlikely that both the BMP's would work in the developed condition, therefore one of the
BMP's would have to be phased out and filled and the other would have to be increased in size, or relocated.
4. A complete site plan for the BMP on the VA site.
A: See the attached Overall Storm Drainage Plan by Littlejohn Engineering, and annotated by Stimmel
Associates.
5. Ownership history.
A: See letter from Jeff Hunter with Pope Companies, partner in Blue Diamond Investment Company, LLC,
addressing ownership history.
6. Determination if EO 13514 applies to the VA Hospital. If yes, then what provisions will be taken to comply
with the Executive Order.
A: The VA's Solicitation For Offers (SFO) did not specifically mention Executive Order 13514, although it did
mention other EOs.
Although EO 13514 was not mentioned, most of the pertinent goals of EO 13514 were requirements of the SFO,
including sustainable design. In fact, the proposed facility has been designed to be certified as LEED Silver,
possibly Gold. The areas of concentration include water efficiency, energy efficiency, recycling and reuse of
demolition and building materials, green roofs, preferred parking spaces for energy efficient and alternative fuel
vehicles, preferred parking spaces for carpool vehicles, and stormwater management measures.
Please contact me if you require additional information.
Sincerely,
6
J. Neal Tucker, PE
Stimmel Associates, PA
Attachments
Cc: Jeff Hunter, Pope Companies
Ana Jaramillo, Town of Kernersville
,•'_ L SEAL -
14985
S 1
v
!!lll lit*