20130634 Ver 1_More Info Received_20130829

Strickland, Bev
From: Lucas, Annette
Sent: Thursday, September 05, 2013 11:27 AM
To: Strickland, Bev
Subject: FW: 13 -0634 MacGregor Downs Deck Addition Variance
Attachments: 130808— OUT— LTR —NCDEN R. pdf
From: Freeman, Hunter [ma i Ito: HFreeman(a)withersravenel.com]
Sent: Thursday, August 29, 2013 3:07 PM
To: Lucas, Annette
Cc: Smith, Cherri L; Devane, Boyd
Subject: RE: 13 -0634 MacGregor Downs Deck Addition Variance
Annette — here is a pdf of what we submitted to Cherrie.
04711011110110-4 on,
Hunter
From: Lucas, Annette [ mailto :annette.lucas @ncdenr.gov]
Sent: Thursday, August 29, 2013 2:49 PM
To: Freeman, Hunter
Cc: Smith, Cherri L; Devane, Boyd
Subject: 13 -0634 MacGregor Downs Deck Addition Variance
Hi Hunter —
Did you submit more info on this with details on the RWH system? I can't locate more info in the file or in laserfiche.
Thanks,
A
Annette M. Lucas, PE
Environmental Engineer
NCDENR I DEMLR I Stormwater Program
1612 Mail Service Center, Raleigh, NC 27699 -1612 (N111a.i.l.)
512 N. Salisbury St, Raleigh, NC 27604 1 9th Floor (i ocatior &, Parcels)
Phone: [phone] Fax: [phone] Email: l nnetLe.1 -u as'(rLL(- Uicnr.��t-ry
Website: http: / /portal.ncdenr.org /web /lr /stormwater
Before printing this email, please consider your budget and the environment.
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.

ENGINEERS PLANNERS I SURVEYORS
August 7, 2013
NCDENR
Division of Water Quality
1601 Mail Service Center, Raleigh, NC 27699 -1601
Attn: Cherri Smith
Dear Ms. Smith.
Attached please find our revised request for a variance from the Neuse River Buffer rules for 2,920 sf of
Zone 2 of the buffer adjacent to the existing clubhouse at MacGregor Downs Country Club. The club
plans to expand its food and beverage services and is proposing an expansion of the existing outdoor
seating areas.
We have revised our submittal per comments received from you and Ms. Annette Lucas. The revisions
include a plan to offset proposed impacts using credits from a private mitigation bank, and revisions to the
proposed rainwater harvesting system.
The cistern has been revised to a 2,500 gallon cistern, and the location of the installation has been
moved of the club's maintenance facility. Although a passive drawdown device is proposed, the club may
also use a portion of the captured rainwater for maintenance purposes such as hand watering around the
golf course.
Should you have any questions regarding this request, please do not hesitate to call me directly at (919)
535 -5137.
Sincerely,
115 Macl<enan Drive I Cary, NC 27511 I tel.: [phone] I fax: [phone] I www.withersravenel.com I License No. C -o832
1410 Commonwealth Drive I Suite 1o1 I Wilmington, NC 28403 I tel: [phone] fax: [phone]
7o11 Albert Pick Road, Suite G I Greensboro, NC 27409 1 tel: 336.6o5.3oo9 I fax: [phone]

AIF"'
HCD
North Carolina Department of Environment and Natural
Division of Water Quality
Pat McCrory Thomas A. Reeder
Governor Acting Director
July 3, 2013
Certified Mail
Return Receipt Requested
7012 0470 0001 3843 0112
MacGregor Downs Country Club
Attn: Russ Curtis
430 Saint Andrews Lane
Cary, NC 27511
Subject: REQUEST FOR ADDITIONAL INFORMATION
MacGregor Downs Deck Addition
Dear Mr. Curtis:
Resources
John E. Skvarla, III
Secretary
DWQ #13 -0634
Wake County
On June 20, 2013, the Division of Water Quality (Division) received your application dated June
5, 2013, requesting a Minor Variance from the Neuse Riparian Area Protection Rule for your
project. The Division has determined that your application is incomplete and cannot be
processed until we receive information regarding the mitigation of Zone 2 impacts totaling
2,920 square feet.
Approval of a Variance is contingent upon mitigation for the impacts that are considered
prohibited by this Rule. In this case, the required mitigation is 4,380 square feet (2,920
multiplied by 1.5). This mitigation can be satisfied through payment to a mitigation bank,
payment to the NC Ecosystem Enhancement Program (NC EEP), or mitigation conducted by the
applicant. If payment to a mitigation bank or NC EEP is chosen, please provide the approval
letter regarding the availability of the appropriate buffer mitigation credits.
Pursuant to Title 15A NCAC 02B .0233 (8), the applicant shall furnish all of the above requested
information for the proper consideration of the application. If all of the requested information
is not received in writing within 30 calendar days of receipt of this letter, the Division will be
unable to approve the application and it will be returned. The return of this project will
necessitate reapplication to the Division for approval, including a complete application package
and the appropriate fee.
Wetlands, Buffers, Stormwater, Compliance and Permitting Unit (WeBSCaPe)
1650 Mail Service Center, Raleigh, North Carolina 27699 -1650 One
Phone: [phone]TAX: 919-807-6494 NorthCaroftna
Internet: http : / /portal.ncdenr.orgtweb /wq/ws � f a 1��`l
An Equal Opportunity 1 Affirmative Action Employer i�tC1[

MacGregor Downs Deck Addition
DWQ# 13 -0634
Request for Additional Information
Page 2 of 2
Please respond in writing within 30 calendar days of receipt of this letter by sending two copies
of the above requested information to the Wetlands, Buffers, Stormwater — Compliance and
Permitting (Webscape) Unit, 1650 Mail Service Center, Raleigh, NC 27699 -1650.
Please be aware that you have no authorization under the Neuse Riparian Area Protection Rule
for this activity and any work done within protected riparian buffers may be a violation of North
Carolina General Statutes and Administrative Code.
Please contact Cherri Smith at 919 - 791 -4251 or cherri.smith @ncdenr.eov if you have any
questions or concerns.
Since ely,
✓'t.
Danny S ith, Supervisor
Surface Water Protection — Raleigh
Regional Office
cc: Hunter Freeman; Withers & Ravenel; 115 MacKenan Drive; Cary, NC 27511
DWQ RRO 401 files

Forrest Creek Riparian Buffer Mitigation Bank
Rudolph Riparian Buffer Bank
Statement of Availability July 29, 2013
NC Division of Water Quality U.S. Army Corps of Engineers
Ms. Katie Merritt Mr. Monti Matthews
401 Oversight /Express Permitting Unit CESAW -RG -R
1650 Mail Service Center Raleigh Regulatory Field Office
Raleigh, NC 27699 -1650 3331 Heritage Trade Center, Suite 105
Wake Forest, NC 27587
Re Project: MacGregor Downs Country Club
This document confirms that MacGregor Downs Country Club. (Applicant) for the Project:
MacGregor Downs Deck Addition has expressed an interest to utilize 4,380 Square Feet of
Riparian Buffer Mitigation Credits from either of the EBX Neuse Riparian Buffer Umbrella
Mitigation Bank /Rudolph Site, the Forrest Creek Riparian Buffer Mitigation Bank, or the Upper
Neuse Buffer - Nutrient Reduction Mitigation Bank /Cedar Grove Site, all located in and approved
to serve the Neuse HUC 03020201. As the Bank Sponsor for all sites, EBX attests to the fact that
mitigation is available for transfer upon permit issuance at this time.
Banker will notify applicant if the 4,380 Sq. Ft. of Buffer Mitigation become considered "At
Risk" of not being available prior to permit issuance. Credits are not considered secured until
payment in full is received from the applicant resulting in the issuance of a Bill of Sale and
Affidavit of Sale by the bank acknowledging that the applicant has fully secured credits from
the bank and the Banker has accepted full responsibility for the mitigation obligation requiring
the credits /units.
The Banker will issue the Affidavit of Sale within three (3) days of receipt of the balance of the
Purchase Price. Banker shall provide to Applicant with a copy of the Affidavit of Sale and a
documented copy of the debit of credits from the Bank Official Credit Ledger(s) showing the
permit number and the resource type secured by the applicant. A copy of the Affidavit of Sale,
with an updated Official Credit Ledger will also be sent to regulatory agencies showing the
proper documentation.
If any questions need to be answered, please contact me at 239 - 872 -1678
Best Regards
^44L
Matthew R. Fisher
EBX -EM, LLC
909 Capability Drive Suite 3100. Raleigh, NC 27606

Permit N
(to be provided by DWQ)
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
RAINWATER HARVESTING SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
Captured Horizontal Surface Area of Roof
Are you in Coastal County SA waters or ORW Areas?
Storage Volume: Non -SA Waters / Other
Design rainfall
Rain Harvesting Volume Provided (Must include a factor of safety at
least 1.2x design rainfall)
Rain Harvesting Volume Provided
Storage Volume: SA Waters & Saltwater ORW Areas
Runoff Volume generated from 1.5'
1 -yr, 24 -hr rainfall depth at your site
Pre - Development 1 -yr, 24 -hr Runoff
Post - Development 1 -yr, 24 -hr Runoff
1 -yr, 24 -hr Runoff Volume Post -Pre
Use 1.5” or Pre /Post?
Volume of Rainwater Harvesting System Provided
Rain Harvesting Volume Provided at Site
Factor of Safety
Rain Harvesting Volume Provided
ft3
in
ft3
_ ft
0.00 ft3
Fill out Non -SA Waters/Other Section
OK
OK
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
334:00 ft3 OK
1,33 _ OK
2498.65 gal
ci 2
Form SW401- Rainwater Harvesting -Rev.3 Parts I. & II. Design Summary, Page 1 of 6
„,r s ,,, ,,, { s;( ,t,rJ ;�`:=
s „'! ,: ,r•(,� - ;t�,u'•'��P 1 -k t) t,,,:: ,,
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Project name
MacGregor Downs Deck Additftion
Contact person
Hunter Freeman
Phone number
919 - 469-3340
Date
713112013
Drainage area number
1
. ,,, -- � a i
t.. � .
4,
fil�li',,
Site Characteristics
Captured Horizontal Surface Area of Roof
Are you in Coastal County SA waters or ORW Areas?
Storage Volume: Non -SA Waters / Other
Design rainfall
Rain Harvesting Volume Provided (Must include a factor of safety at
least 1.2x design rainfall)
Rain Harvesting Volume Provided
Storage Volume: SA Waters & Saltwater ORW Areas
Runoff Volume generated from 1.5'
1 -yr, 24 -hr rainfall depth at your site
Pre - Development 1 -yr, 24 -hr Runoff
Post - Development 1 -yr, 24 -hr Runoff
1 -yr, 24 -hr Runoff Volume Post -Pre
Use 1.5” or Pre /Post?
Volume of Rainwater Harvesting System Provided
Rain Harvesting Volume Provided at Site
Factor of Safety
Rain Harvesting Volume Provided
ft3
in
ft3
_ ft
0.00 ft3
Fill out Non -SA Waters/Other Section
OK
OK
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
334:00 ft3 OK
1,33 _ OK
2498.65 gal
ci 2
Form SW401- Rainwater Harvesting -Rev.3 Parts I. & II. Design Summary, Page 1 of 6

Permit No
% Runoff
% Runoff Used On -Site
Primary Method Used On -Site
% Runoff Treated On -Site
Primary Method of Treatment
% Runoff Infiltrated On -Site
Total Runoff Accounted For
Water Balance Calculations Attached?
Cistern Overflow, Gutter, & Gutter Downspout Sizing
100 %
passive drawdown
100 % OK
No
Closest City Raleigh
Captured Roof Area 2000 ft,
Overflow Pipe Diameter Needed (in Dec. Inches) 6 in
Maximum Captured Area for above Overflow Pipe 2000 {t, OK
Guttering
(to be provided by DWQ)
Number of Gutters Total
gutters
Do you have a plan details showing numbered gutters?
No
Please include plan details showing numbered gutters
Do you have a detailed table showing slopes of all gutters?
No
gutters
Do you have a detailed table showing diameters of all gutters?
No
gutters
Do you have a detailed table showing downspout diameterof all
Na
Please include a detailed table showing downspout
gutters?
diameter of all gutters
Do you have a detailed table showing maximum captured area for
No
Please include a detailed table showing maximum
all gutters?
captured area for all gutters
Additional Design Elements
Have you modeled this system using a water harvesting model?
Yes
OK
Days to Draw Down Rainwater Harvester
3
days
Overflow discharged to:
Vegetated Area
OK
Does the overf low discharge directly to impervious surfaces?
No
OK
What is the overflow velocity for the 10 -year storm?
1.5
ft/s
Yes
Please provide calculations to show non - erosive
Is the overflow velocity non - erosive
velocity
Is a First Flush Diverter Used?
No
If First Flush Diverter used, where is bypassed water discharged to?
Actual City
Gary
Closest City
Raleigh
Average Annual Historic Rainfall at your Site
42
in
Percent of Rainfall that will Overflow Cistern
6
%
Additional Design Elements
Which Model?
NCSU
Does this cistern have a dedicated year -round use?
Yes
OK
Screen Sizing at Entrance to Rainwater Harvester
1
mm
OK
Do you have a secondary water supply to the rainwater harvester?
No
Design for footing must be provided if the load of the
cistern at full capacity is greater than the soils will
Plans for the footing included in submittal?
No
support
Is the cistern buried?
No
OK
Pump provided? What is the pressure?
psi
What are the designated uses of the pump?
Are Pump Sizing Calculations Attached?
No
Is Cistern Metal?
No
OK
If Metal Cistern - Is Waterproof Bladder Provided?
If the only use is irrigation - are plans provided?
N/A
OK
Form SW401- Rainwater Harvesting -Rev.3
Parts h & II. Design Summary, Page 2 of 6

Permit
Labeled as non - potable water? Yes OK
Are Local & State pumbing codes followed? Yes
Does this roof area deduct BUA from calculations of another BMP? No
If so, what BMP?
Notes:
(to be provided by DWQ)
Form SW401- Rainwater Harvesting -Rev.3 Parts I. & II. Design Summary, Page 3 of 6

Permit
NO
(to be provided by DWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
tnfti s Sheet No.
1' Plans (1" 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Rain Harvester dimensions,
Pretreatment system,
-Any first flush bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Partial plan (1" = 301-or larger) and details of rain harvester showing:
- Maintenance access
- Volume
- Area overflow is directed to and appropriate details of overflow area including vegetation, seeding plan
and side slopes
Screen sizing
- Waterproof bladder if applicable
- Footings
- Pump design and sizing
- Guttering with sizing and slopes, overflows, and
Filter strip.
3. Section view of the roof and rain harvester (1" = 20' or larger) showing:
Pretreatment and treatment areas, and
- Inlet and outlet structures.
4• Rain harvesters shall not be used for sediment and erosion control during construction.
5. A table of elevations, areas, gutter slopes, gutter and overflow dimensions, incremental volumes &
accumulated volumes for overall site to verify volume provided.
6.
A construction sequence that shows how the rain harvester will be implemented on site.
7' The supporting calculations.
$' A copy of the signed and notarized operation and maintenance (0 &M) agreement.
9' A copy of the deed restrictions (if required).
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
11 A copy of the printout from the water harvesting model used.
12 A copy of average annual rainfall at your site.
Form SW401- Rainwater Harvest! ng -Rev.3 Part III. Required Items Checklist, Page 4 of 6

M�-
Me m Gla3ic Usage 0"I sagel� on OutPLAs
. .......... . .......
Daily Simulabon Results
$233
Current
Previous
Total Volume Capt- U%
96%
Usage Replace 20 f.
20%
Anrwall Water Usage 45151 gal.
4GOM gal,
Arrazal Water Savings
S 228
$233
Am- Backup Water Ulsage
0 gal.
0 gal.
Ann- Backup Water Cost
SO
SO
Overflow Frequency
3%
2-1
Dry Cistern Freqpjency
89
88%
Water Quality V61 - caw
100/.
Annual Mdrogen Removed
OA5 tbs.
14615s.
Payback Period
11 yrs.
71 YTS.
save ut]
[-7� 4--D
Simulation Date
xrae
L---5 9—p'j
Speed
Simulation Complete! D V�aie I

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