20180628 Ver 1_More Info Received_20180606

Goss, Stephanie
From: Jay Keller <[e-mail]>
Sent: Wednesday, June 06, 2018 11:51 AM
To: Goss, Stephanie
Subject: RE: [External] RE: Creek View at Traditions
Attachments: 011 -0.5 -Sand Filter #1 Plan and Details6-5-18.pdf,
Creek_View@Traditions_Supplement_Sand Filter_Rev.6 2010Sept22.xlsx
Good morning Stephanie, hope you're doing well. Please review the attached sand filter plan & let me know if we need
to include more. Since the buffer impacts are less than originally planned, we'll revise the PCN to reflect. Regarding the
nitrogen treatment, we were planning on completing the attached spreadsheet. Please let me know if this is good & if
we need to provide more. Thanks, Jay
From: Goss, Stephanie <[e-mail]>
Sent: Tuesday, May 22, 2018 10:45 AM
To: Jay Keller <[e-mail]>
Subject: RE: [External] RE: Creek View at Traditions
Jay,
Thanks for the update.
Stephanie Z. Goss
Environmental Senior Specialist
Division of Water Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 276o9
919-791-4256
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: lay Keller [mai Ito:[e-mail]]
Sent: Tuesday, May 22, 2018 10:29 AM
To: Goss, Stephanie <[e-mail]>
Subject: [External] RE: Creek View at Traditions
^AUTION: External email. Do not click links or open attachments unless verified. Send all susp
Good morning Stephanie, hope your week is starting well. We've been very busy maintaining/repairing our stormwater
ponds. We're working on the plan revisions & should have them to you this week. Thanks for your help and talk to you
soon. Jay
1

From: Goss, Stephanie <[e-mail]>
Sent: Monday, May 14, 2018 11:21 AM
To: Jay Keller <[e-mail]>
Subject: Creek View at Traditions
Jay,
started reviewing the above, mentioned project and the following items are required for the review process:
• Please provide an impact map -the. riparian buffer impacts requested in this application need to ;be clearly
shown.and enumerated on a site plan. These impacts need to correspond to.the impacts requested in the
application. The labels on the site plan should be clear and should match.the labels of the impacts listed in the
application. As the application'currently stands, it is not possible,to match up what is in the application with the
site plan. [15A NCAC 02H .0502(g)]
®. Please provide details that a Stormwater management facility is installed to control nitrogen before -the
conveyance discharges through the buffer.
Thanks!
Stephanie Z. Goss
Environmental Senior' Specialist
Division` of Water Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 276og
919-791-4P56
E-mail correspondenee'to and from this address may be subject to the
North Carolina Public. Records Law: and may be disclosed to third parties
z

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody ,
impact number — (if applicable)', Type of impact Waterbody type Area of impact (acres)
Permanent (P)
or Temporary T
01 ❑P❑T
02 El PDT
03 ❑P❑T
04 ❑ PEI T
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
5b.
5c.
5d.
5e.
Wetland Impacts (acres)
Stream Impacts (feet)
Upland
Pond ID
Proposed use or purpose of
(acres)
number
pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes , ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed. (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill`out Section D of this form.
6a..
® Neuse ❑Tar -Pamlico El Other:
Project is in which protected. basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number —
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P)
for impact
Stream name
mitigation
(square feet)
(square feet)
or Temporary T
required?
B1 ®P ❑ T
Channrel DischaUT
to Dunn Creek
®ge Nos
161
241
El Yes
B2 ❑PFIT
❑ No
F1 Yes
B3 ❑P❑T
❑ No
6h. Total buffer impacts
161
241
6i. Comments: The discharge channel will be <_10 -feet wide. It will consist of a rip -rap swale from the sand filter discharge to
Page 6 of ,12 1
PCN Form — Version 1.3 December 10, 2008 Version

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SAND FILTER # 1•==WE.m.�..n••,•�•,
ROW/ Y CALCULATIONS FOR
Own FlOYcmn
C. NSERRMREL
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SECTION A
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BUFFER IMPACT LEGEND /TABLE
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BUFFER IMPACT
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INNER 11Y
-
ZONE 1
(161 SF)
EXISTING TOWNROMES
.4,
BUFFER IMPACT
OUTER 30'
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ZONE 1
(161 SFJ
.
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SAND FILTER # 1•==WE.m.�..n••,•�•,
ROW/ Y CALCULATIONS FOR
Own FlOYcmn
C. NSERRMREL
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Storage Volume
Design volume (WQV)
Permit Number:
Adjusted water quality volume (WQVAdj)
(to be provided by DWQ)
A MA
OF WATER
y�O�
NCDENR
318 ft amsl
Weir elevation (between chambers)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
Maximum head on the sedimentation basin and sand filter (hv,,,,i yr)
401 CERTIFICATION APPLICATION FORM
Average head on the sedimentation basin and sand filter (hA)
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name
Creek View at Traditions
Contact name
Jay Keller
Phone number
[phone]
Date
June 6, 2018
Drainage area number
1
If!. rDESIGN INFORMATION'S
Site Characteristics
Drainage area (AD)
217,800.00 It' OK
Impervious area
ft"
% Impervious (IA)
%
Design rainfall depth (RD)
in
Peak Flow Calculations
1 -yr, 24 -hr runoff depth
in
1 -yr, 24 -hr intensity
-in/hr
Pre -development 1 -yr, 24 -hr runoff
ft/sec;
Post -development 1 -yr, 24 -hr runoff
ft3/sec
Pre/Post 1 -yr, 24 -hr peak control
ft/sec
Storage Volume
Design volume (WQV)
ft3
Adjusted water quality volume (WQVAdj)
0.00 ft,
Volume contained in the sedimentation basin and on top of the sand filter
It,
Top of sand filter/grate elevation
318 ft amsl
Weir elevation (between chambers)
318 It amsl
Maximum head on the sedimentation basin and sand filter (hv,,,,i yr)
ft
Average head on the sedimentation basin and sand filter (hA)
ft
Runoff Coefficient (R,t)
(unitless)
Type of Sand Filter
Open sand filter?
Y Y or N
SHWT elevation
ft ams]
Bottom of the sand filter elevation
ft amsl
Clearance (dsHwT)
Closed/pre-cast sand filter?
N Y or N
SHWT elevation
It amsl
Bottom of the sand filter elevation
It amsl
Clearance (dsnwT)
If this is a closed, underground closed sand filler: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
ft
structure (dsp.)
Form SW401-Sand Filter-Rev.5 2009Septl7 Parts I and 11. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
ft2
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
ft2
Top of sand media filter bed elevation
"'�x�> 318;00 ft amsl
Bottom of sand media filter bed/drain elevation`315.0yft
amsl
Depth of the sand media filter bed (dF)
3.00 ft
Coefficient of permeability for the sand filter (k)
(ft/day)
Outlet diameter
36'.00' in
Outlet dischargelflowrate
.53;ft3/sec
Time to drain the sand filter (t)
2 .'00 hours
OK. Submit drainage calculations.
Time to drain the sand filter (t)
1.00 days
Additional Information
Does volume in excess ofthe design volume bypass the sand filter?Y..:
;'; ;.<`, Y or N
OK
Is an off-line flow -splitting device used?
Y or N
OK
If draining to. SA waters: Does volume in excess of the design volume flow
Y or N.
evenly distributed through a vegetated filter?
What is the length,of the vegetated filter?
ft
Does the design use a level spreaderto evenly distribute flow?
�'�� �x��>"='TN">.<t;."� Y or N .
Show how flow is evenly distributed.
Is the BMP. located at Ieast30ftfrom surface waters (50ft if SA-waters)?°XV.
Y or N
OK
If not a closed bottom, is BMP located at least 1 00f from water supply wells?
Y or N
Are the vegetated side slopes equal to or less than 3:1
Y or N
OK
Is the BMP located in a recorded drainage easement with a recorded access
� Y or N
easement to a public Right of Way (ROW)?��'i
What is the width of the sedimentation chamber/forebay (Wsed)?
Via_ ;r;°_: �.`-.°�ft
What is the depth of sand over the outlet pipe (dpipe)?
ft
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2