20121140 Ver 1_More Info Received_20130212

Strickland, Bev
From: Jay Keller [[e-mail]]
Sent: Tuesday, February 12, 201312:41 PM
To: Strickland, Bev
Subject: RE: SW Cary Parkway Daycare major variance; 2012-1140; 2 of 2
Attachments: 2005-04-15 - SW Wetlands & Storm Drain Design-reduced.pdf
Here's the stormwater manual. Thanks.
From: Jay Keller fmailto jay@)kellerenvironmental com_1
Sent: Tuesday, February 12, 2013 12:38 PM
To: 'Strickland, Bev'
Subject: RE: SW Cary Parkway Daycare major variance; 2012-1140
Hello Bev, hope you're doing well. Attached are the items that Michael just submitted to Laurie for the major variance.
I'll send the stormwater manual in another email. Thanks, see you soon, & have a good week. Jay
From: Strickland, Bev fmailto:bev.stricklandca)ncdenr govl
Sent: Wednesday, January 30, 2013 10:52 AM
To: Jay Keller
Subject: RE: SW Cary Parkway Daycare major variance
I already have them. Thanks
From: Jay Keller fmailto:jay(alkellerenvironmental com]
Sent: Wednesday, January 30, 2013 10:10 AM
To: Strickland, Bev
Subject: RE: SW Cary Parkway Daycare major variance
Hello again Bev. Do you want me to send you the pdf s of the original documents submitted on December 21St? Thanks,
Jay
From: Jay Keller rmailto:[e-mail]
Sent: Wednesday, January 30, 201310:04 AM
To: karen.hi-gains@)ncmail.net
Cc: Strickland, Bev
Subject: SW Cary Parkway Daycare major variance
Hello Karen & hope you're doing well. Attached are 2 plans I thought would be good to incorporate into the "SW Cary
Parkway Daycare" major variance. The "...stormpond" plan sheet shows the existing stormwater pond & its proximity to
the proposed project. The stormwater wetland is in excellent condition & is sized to incorporate the new daycare site.
The attached plat has the required language pertaining to the stormwater pond and the entire Kilarney area.
Who did you assign to handle this project? Are we still good for the March 13/14 EMC meeting? Can we submit the 401
package soon or do you want us to wait for the EMC hearing?
Thanks & see you soon. Jay
Jay Keller
Principal
Keller Environmental, LLC

7e
7921 Haymarket Lane
Raleigh, NC 27615
[phone] cell
www.kellerenvironmental.com
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Strickland, Bev
From: Jay Keller ([e-mail])
Sent: Tuesday, February 12, 201312:38 PM
To: Strickland, Bev
Subject: RE: SW Cary Parkway Daycare major variance; 2012-1140
Attachments: SW Parkway Daycare Project SOA.pdf; 2005-07-13 Letter rec. fromT. Horstman.pdf;
Commercial Site_1-23-12.pdf; D00O20113-003.pdf, DWQ_Re-Submittal _Letter SW Cary
Pkw Daycare 2-11-13.pdf, Kilamey Point Receipt 2005.pdf, Kilamey Pointe Memorandum
6-14-05.pdf; Kilamey Pointe Plat.pdf, Kilamey Pointe_1-26-10.pdf, SW Cary Parkway Daycare
Letter of Transmittal(DWQ) 2-12-13.pdf; SW Cary Parkway Daycare with stormpond.pdf
Hello Bev, hope you're doing well. Attached are the items that Michael just submitted to Laurie for the major variance.
I'll send the stormwater manual in another email. Thanks, see you soon, & have a good week. Jay
From: Strickland, Bev fmailto:bev.strickland(&ncdenr govl
Sent: Wednesday, January 30, 2013 10:52 AM
To: Jay Keller
Subject: RE: SW Cary Parkway Daycare major variance
I already have them. Thanks
From: Jay Keller fmailto:jay(&kellerenvironmental com_1
Sent: Wednesday, January 30, 2013 10:10 AM
To: Strickland, Bev
Subject: RE: SW Cary Parkway Daycare major variance
Hello again Bev. Do you want me to send you the pdf s of the original documents submitted on December 21n? Thanks,
Jay
From: Jay Keller fmailto:jay(dkellerenvironmental coml
Sent: Wednesday, January 30, 2013 10:04 AM -
To: karen.hicigins@)ncmall.net
Cc: Strickland, Bev
Subject: SW Cary Parkway Daycare major variance
Hello Karen & hope you're doing well. Attached are 2 plans I thought would be good to incorporate into the "SW Cary
Parkway Daycare" major variance. The "...stormpond" plan sheet shows the existing stormwater pond & its proximity to
the proposed project. The stormwater wetland is in excellent condition & is sized to incorporate the new daycare site.
The attached plat has the required language pertaining to the stormwater pond and the entire Kilarney area.
Who did you assign to handle this project? Are we still good for the March 13/14 EMC meeting? Can we submit the 401
package soon or do you want us to wait for the EMC hearing?
Thanks & see you soon. Jay
Jay Keller
Principal
Keller Environmental, LLC
7921 Haymarket Lane
Raleigh, NC 27615
[phone] cell

www.kellerenvironmental.com
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Checked by AVG - www.avg.com
Version: 2013.0.2890 / Virus Database: 2639/6062 - Release Date: 01/27/13

LETTER OF TRANSMITTAL
TO: NC Division of Water Quality
401 Wetlands WQ Certification Unit
1650 Mail Service Center
Raleigh, North Carolina 27699 -1650
KELLER ENVIRONMENTAL
ENVIRONMENTAL CONSULTANTS
7921 Haymarket Lane, Raleigh, NC
(919) 749 -8259
(919) 803 -0970 Fax
DATE: February 12, 2013
ATTENTION: Karen Higgins
RE: SW Cary Parkway Daycare
DWQ Project: 2012 -1140
WE ARE SENDING YOU THE FOLLOWING:
❑ Pre- construction Notification (PCN) ® Plans ❑ Ma s
P El Specifications
® Documents ❑ Other
THESE ARE TRANSMITTED AS CHECKED BELOW:
® For approval ® As requested ® For review & comment
® Please reply ❑ See below ® For your files
❑ Regular Mail ❑ Fed -Ex ® Delivered by KE ❑ Picked Up
COPIES
DATE
DESCRIPTION
2
2 -11 -12
Re- Submittal Letter
2
2 -1 -13
DWQ Request for More Information Letter
2
2 -11 -12
Forrest Creek Riparian Buffer Mitigation Bank Letter
2
2
Alternate Site Plans (2
2
6 -6 -05
EEP Nutrient Offset Receipt
2
6 -14 -05
Kilamey Pointe Memorandum
Kilarney Pointe Stormwater Wetlands Design Manual
Kilarney Pointe Plat
1
4 -15 -05
2
3 -16 -05
2
SW Cary Parkway Daycare Preliminary Site Layout
Remarks:
Rec'd By:
THANK YOU!
Signed
�D
Ty
Mrich

Forrest Creek Riparian Buffer Mitigation Bank
Rudolph Riparian Buffer Bank
Statement of Availability February 11, 2013
NC Division of Water Quality U.S. Army Corps of Engineers
Ms. Katie Merritt Mr. Monti Matthews
401 Oversight /Express Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699 -1650
CESAW -RG -R
Raleigh Regulatory Field Office
3331 Heritage Trade Center, Suite 105
Wake Forest, NC 27587
Re Project: SW Parkway Daycare -DWQ Project # 2012 -1140
This document confirms that the (Applicant) for the SW Parkway Daycare has expressed an
interest to utilize 34.851 Square Feet of Riparian Buffer Mitigation Credits from either of the
EBX Neuse Riparian Buffer Umbrella Mitigation Bank /Rudolph Site, Forrest Creek Riparian
Buffer Mitigation Bank, and /or the Upper Neuse Buffer Bank located in Neuse -Cedar Grove Site,
all located in 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 34.851 Scl. 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 ten (10) 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 Regardjs�
/.c
Matthew R. Fisher
EBX -EM, LLC
909 Capability Drive Suite 3100. Raleigh, NC 27606

July 11, 20(
James W. Caldwell
John R McAdams Company, Inc.
2905 Meridian Parkway
Durham NC 27713
Subject: Kilarney Pointe - Revision
04 -SB -025
Dear James W. Caldwell:
ENGINEERING DEPARTMENT
The Town of Cary has reviewed the revised plans for Kilarney Pointe 04 -SB -025, and
concurs that a payment to the North Carolina Ecosystem Enhancement Program is necessary
to meet the nitrogen export requirement of the Neuse Stormwater Rules. A payment of
$1013.69 is needed to offset nitrogen loading from the subject project that was revised. Cary's
Stormwater Division has checked that your calculations have been computed based on the
provisions of the Neuse Stormwater Rule and the methods agreed to by the Neuse Stormwater
Team.
This letter will serve as an invoice for the payment due to the North Carolina Ecosystem
Enhancement Program ( NC DENR EEP). Attn: Carol Shaw, 1652 Mail Service Center,
Raleigh, NC 27699 -1652, phone number (919)715 -0476.
Please be aware that the above referenced plan will not receive final approval until the
Town of Cary obtains receipt of payment from the NC DENR EEP.
Cc: NC DENR EEP
Sincerely,
Thomas L. Horstman
Erosion Control Supervisor
TOWN Ot CARY
318 North Academy Street -Cary, NC 27513-PO Pox 8005-Cary, NC 27512 -8005
te1919- 469 -4030 ® fax 919 - 460- 4935® www.townofcary.org

North Carolina
Pat McCrory
Governor
LBJ Cary Associates LLC
Attn: Lyle Gardener
7706 Six Forks Road
Raleigh, NC 27615
NCDENR
Department of Environment and Natura
Division of Water Quality
Charles Wakild, P. E.
Director
February 1, 2013
Subject: REQUEST FOR ADDITIONAL INFORMATION
SW Cary Parkway Daycare
Dear Mr. Gardener:
Resources
John E. Skvarla, III
Secretary
DWQ #: 2012 -1140
Wake County
On December 21, 2012, the Division of Water Quality (Division) received your application requesting a
Major Variance to the Neuse Riparian Buffer Rules for your project. The Division has determined that
your application is incomplete and cannot be processed. The application is on -hold until all of the
following information is received:
Please provide a full -size plan sheet showing the entire site with its storm drainage system,
including every inlet, outlet and conveyance device. Please show how every proposed outlet
will be discharged to an appropriately sized and designed stormwater wetland as described in
the Variance Request Form.
2. Please provide a copy of the stormwater management plan for the two stormwater wetlands
approved by the town of Cary, including plan details and calculations. Also, please provide
documentation that the stormwater wetlands have adequate capacity to treat the stormwater
from the proposed daycare center.
3. Please provide an explanation as to whether each of the following hardships (15A NCAC 02B
.0233 (9)(a)(i) are met:
A. If the applicant complies with the provisions of this Rule, he /she can secure no
reasonable return from, nor make reasonable use of, his /her property. Merely proving
that the variance would permit a greater profit from the property shall not be
considered adequate justification for a variance. Moreover, the Division or delegated
local authority shall consider whether the variance is the minimum possible deviation
from the terms of this Rule that shall make reasonable use of the property possible.
B. The hardship results from application of this Rule to the property rather than from other
factors such as deed restrictions or other hardship.
•.Netla,�Is, Buffers lormwiter- ',omplian„e � .1 rrarr?ittin(, ,.'.ebsr,;_�, nit On e
1 `_v N'gii Pr ice Center, Raleigh '!..:h Faro' 2-6 °9
Lice in- 517 N. Sal, • ,,; St. R , 9inh. ^loltl, 'a Nor thCar�lina
J'Mw.. 807 W9 Fv'<' 913-N., )494 � C i >lo, c ^,v 1 °77 -FN 748 ��/R1 �1��� " %�
'n, rW v� �, ocwater.nn,y.c n/

SW Cary Parkway Daycare
Page 2 of 2
February 1, 2013
C. The hardship is due to the physical nature of the applicant's property, such as its size,
shape, or topography, which is different from that of neighboring property.
D. The applicant did not cause the hardship by knowingly or unknowingly violating this
Rule.
E. The applicant did not purchase the property after the effective date of this Rule, and
then requesting an appeal.
The hardship is unique to the applicant's property, rather than the result of conditions
that are widespread. If other properties are equally subject to the hardship created in
the restriction, then granting a variance would be a special privilege denied to others,
and would not promote equal justice;
4. Please provide documentation from an appropriate mitigation bank or the NCEEP indicating
their willingness to accept your request to purchase 34,581 buffer credits. Mitigation provider
selection must conform to the requirements of G.S. 143 - 214.20.
Pursuant to Title 15A NCAC 02B .0233, 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.
Respond in writing within 30 calendar days of receipt of this letter by sending two copies of all 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 Section 401 of the Clean Water Act or the Neuse
Riparian Buffer Rules for this activity and any work done within waters of the state may be a violation of
North Carolina General Statutes and Administrative Code.
Contact Karen Higgins at karen.higgins @ncdenr.gov or 919 - 807 -6360 if you have any questions or
concerns, or contact Annette Lucas at annette.lucas @ncdenr.gov or 919 - 807 -6381 if you have any
questions related to stormwater (items # 1 & 2 above).
Sincerely,
Kar n Higgins, Supery r
Wetlands, Buffers, St water — Compliance &
Permitting Unit
cc: Jay Keller, Keller Environmental (via email)
File Copy
File name: 121140SWCaryParkwayDaycare (Wake)_NBR_MV_Hold.docx

I {E
KELLER ENVIRONMENTAL
ENVIRONMENTAL CONSULTANTS
February 11, 2013
Karen Higgins
NC Division of Water Quality
401 Wetlands WQ Certification Unit
1650 Mail Service Center
Raleigh, North Carolina 27699 -1650
Re: SW Cary Parkway Daycare
Keller Environmental Job No. 1010
DWQ Project 2012 -1140
Cary, North Carolina
Dear Ms. Higgins:
Thank you for your help with the Major Variance for this proposed daycare facility in Cary,
NC. We are submitting the additional information requested from written correspondence on
February 1, 2013. We are requesting a Major Variance approval from the N.C. Division of Water
Quality (DWQ) for 0.35 acres of impact to the Neuse River Buffer. We have addressed your
included written comments in the following paragraphs.
1. Please provide a full -size plan sheet showing the entire site with its storm
drainage system, including every inlet, outlet and conveyance device. Please
show how every proposed outlet will be discharged to an appropriately size and
designed stormwater wetland as described in the Variance Request Form.
Please review the attached preliminary site layout. The northern half of the property
will discharge to the existing drainage system on the east side of Lot 1. The parking
area on the southern half will discharge to the existing Kilarney Ridge Loop drainage
system.
2. Please provide a copy of the stormwater management plan for the stormwater
wetlands approved by the town of Cary, including plan details and calculations.
Also, please provide documentation that the stormwater wetlands have
adequate capacity to treat the stormwater from the proposed daycare center.
Please refer to the attached Kilarney Pointe Stormwater Wetlands Design Manual.
The Town of Cary approval letter and NCEEP nutrient offset payment receipt is also
attached.

Neuse R. Buffer Rules Re- Submittal
SW Cary Parkway Daycare Major Variance
February 11, 2013
Page 2 of 4
3. Please provide an explanation as to whether each of the following hardships are
met:
A. If the applicant complies with the provisions of this rule, he /she can
secure no reasonable return from, nor make reasonable use of, his /her
property. Merely providing that the variance would permit a greater profit
from the property shall not be considered adequate justification for a
variance. Moreover, the division or delegated local authority shall
consider whether the variance is the minimum possible deviation from the
terms of this Rule that shall make reasonable use of the property
possible.
The ownership group has attempted multiple site designs for this project.
Unfortunately, the prospective buyers have all rejected them. Attached are two
of the site plans proposed.
B. The hardship results from application of this Rule to the property rather
than from other factors such as deed restrictions or other hardship.
The riparian buffer areas extending from the stream consume a large portion of
the property and their central location is very limiting. Removing the
application of this Rule would greatly reduce the hardship endured by the
ownership group for several years.
C. The hardship is due to the physical nature of the applicant's property,
such as its size, shape, or topography, which is different from that of
neighboring property.
This property has several physical natures that make it difficult to properly plan
a marketable structure, parking and other affiliated structures. We have
attached some of the attempted site designs but they have been rejected by
potential buyers. They include the following:
• Central location of the stream and its affiliated riparian buffers
• Property configuration
• Access Road and road easement on eastern side of property between
Kilarney Ridge Loop (south) and mini - storage (north)
• Topography
• Existing sanitary and drainage easements

Neuse R. Buffer Rules Re- Submittal
SW Cary Parkway Daycare Major Variance
February 11, 2013
Page 3 of 4
D. The applicant did not cause the hardship by knowingly or unknowingly
violating this Rule.
The applicant did not cause the hardship by knowingly or unknowingly violating
this Rule.
E. The applicant did not purchase the property after the effective date of this
Rule, and then requesting an appeal.
The applicant has attempted several configurations to make this project work
without impacting the property's natural resources. However, we are
requesting your assistance with granting the variance despite the property
being purchased in 2004.
F. The hardship is unique to the applicant's property, rather than the result
of conditions that are widespread. If other properties are equally subject
to the hardship created in the restriction, then granting a variance would
be a special privilege denied to others, and would not promote equal
justice.
As mentioned in Section C, this property has several existing physical natures
that limit its marketability and designs.
4. Please provide documentation from an appropriate mitigation bank or the
NCEEP indicating their willingness to accept your request to purchase 34,581
buffer credits. Mitigation provider selection must conform to the requirements
of G.S. 143 - 214.20.
Please refer to the attached February 11, 2013 acceptance letter from environmental
banc and exchange.

Neuse R. Buffer Rules Re- Submittal
SW Cary Parkway Daycare Major Variance
February 11, 2013
Page 4 of 4
Thank you again for your and your staff's assistance with this project. This includes site
meetings with Ian McMillan, Eric Kulz, and Lauren Witherspoon and an office meeting with
Amy Chapman and Ian McMillan. If you should have questions or require additional
clarification please feel free to contact me at (919) 749 -8259 (cell) or email:
Day _kellerenvironmental.com.
Sincerely,
Keller Environmental, LLC
Jay Keller
Principal
Cc: Lyle Gardner
Jay Gilleece
Bryan Benton
Attachment:
• July 28, 2011 DWQ Request for More Information letter

RECEIPT
Moore & Alphin, PLLC
3716 National Drive, Suite 100
Raleigh, NC 27612
Subject: Kilarney Pointe, 04 -SB -025
Town of Cary
June 6, 2005
The North Carolina Ecosystem Enhancement Program has received a check in the amount of
$10,890.00, check number 87621, as payment for nutrient offset for the above referenced project. The
Town of Cary has verified the amount of this payment. Nutrient offset payments made as part of
fulfilling the requirements of the Neuse River Nutrient Sensitive Waters Management Strategy shall be
paid to NC EEP at a rate specified in 15A NCAC 02B.0240.
You must also comply with any other state, federal or local government permits or authorization
associated with this activity. If you have any questions or need additional information, please contact
Carol Shaw at 919- 733 -5205.
Please note that a payment to the Ecosystem Enhancement Program is not reimbursable unless a
request for reimbursement is received within 12 months of the date of this receipt. Any such requests
must be accompanied by letters from the permitting agency stating that the permit and/or authorization
have been rescinded.
incerely, 7;—j
William D. Gilmore, PE
Director
cc: Thomas L. Horstman, Town of Cary
File
R'Utadil�g... ... Protects our Sta g
AAA
NCDENR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699 -1652 / 919 - 715 -0476 / www.nceep.net

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KILAR, 10INTE NITROGEN EXP(.. . CALCULATIONS Jw C­_,Jell, PE
AGL -05M (Apportioned Area- Residential) 6/14/2005
METHOD 2:
Quantifying TN Export from Residential / Industrial / Commercial Developments when Footprints of all Impervious Surfaces are shown.
STEP 1: Determine the area for each type of land use and enter in Column (2).
STEP 2: Total the areas for each type of land use and enter at the bottom of Column (2).
STEP 3: Multiply the areas in Column (2) by the TN export coefficients in Column (3) and enter in Column (4).
STEP 4: Total the TN exports for each type of land use and enter at the bottom of Column (4).
STEP 5: Determine the export coefficient for the site by dividing the total TN export from uses at the bottom of Column (4) by the
total area at the bottom of Column (2).
Total. TN Export 8.3 lbslaclyr
Maximum TN loading allowed = 71.46 lbslyr (based on 6.0 Ibslaclyr)
Therefore, on -site nitrogen removal required = 27.43 lbslyr (total post -dev't TN loading minus
maximum allowed for apportioned area)
REFERENCE:
"City of Raleigh, Stormwater Management Design Manual" January 2002.
Apportion ing_Rev. As TN - Apportion_Res
i (2)
(3)
(4)
Type of Land Cover
j Area
TN export coeff TN export from use
[acres]
(Ibslaclyr)
(lbslyr)
Permanently protected undisturbed
? 0
i
0.6
0
open space forest, unmown meadow
i
Permanently protected managed
7.68
1.2
9.2
open space (grass, landscaping, etc.
_
Impervious surfaces (roads, parking
lots, driveways, roofs, paved storage
i 4.23
21.2
89.7
areas, etc_)
TOTAL
i 11.91
- --
98.89
Total. TN Export 8.3 lbslaclyr
Maximum TN loading allowed = 71.46 lbslyr (based on 6.0 Ibslaclyr)
Therefore, on -site nitrogen removal required = 27.43 lbslyr (total post -dev't TN loading minus
maximum allowed for apportioned area)
REFERENCE:
"City of Raleigh, Stormwater Management Design Manual" January 2002.
Apportion ing_Rev. As TN - Apportion_Res

Klt_ARI 'OINTE NITROGEN EXPO. _ . CALCULATIONS JVV Ca -well, PE
AGL -05OU0 (Apportioned Area- Commercial) 6/1412005
METHOD 2:
Quantifying TN Export from Residential / Industrial / Commercial Developments when Footprints of all impervious Surfaces are shown.
STEP 1: Determine the area for each type of land use and enter in Column (2).
STEP 2: Total the areas for each type of land use and enter at the bottom of Column (2).
STEP 3: Multiply the areas in Column (2) by the TN export coefficients in Column (3) and enter in Column (4).
STEP 4: Total the TN exports for each type of land use and enter at the bottom of Column (4).
STEP 5: Determine the export coefficient for the site by dividing the total TN export from uses at the bottom of Column (4) by the
total area at the bottom of Column (2).
(7}
(2)
(3)
(4)
Type of Land Cover i
Area
TN export coeff TN export from use
[acres]
(Ibslaclyr)
(Ibslyr)
Permanently protected undisturbed j
0
0.6
0
open space (forest, unmown meadow) !
Permanently protected managed i
0.52
1.2
0.6
open space Crass, landscaping, etc.)i
impervious surfaces (roads, parking
lots, driveways, roofs, paved storage
1.32
21.2
28.0
areas, etc.)
TOTAL
1.84
- --
28.61
Total TN Export _ 151.5- Ibsfacfyr.,
Maximum TN loading allowed = 18.40 Ibs /yr (based on 10.00 Ibs /aclyr)
Therefore, on -site nitrogen removal required = 10.21 Ibslyr (total post -dev't TN loading minus
maximum allowed for apportioned area)
REFERENCE:
"City of Raleigh, Stormwater Management Design Manual" January 2002,
Apportioning_Rev.As TN - Apportion_Com

.r
KILAR�. 0INTE NITROGEN EXPO_. CALCULATIONS JW Ca—vell, RE
AGL -05000 (To Wetlands) 611412005
METHOD 2:
Quantifying TN Export from Residential/ Industrial/ Commercial Developments when Footprints of all Impervious Surfaces are shown.
STEP 1: Determine the area for each type of land use and enter in Column (2).
STEP 2: Total the areas for each type of land use and enter at the bottom of Column (2).
STEP 3: Multiply the areas in Column (2) by the TN export coefficients in Column (3) and enter in Column (4).
STEP 4: Total the TN exports for each type of land use and enter at the bottom of Column (4).
STEP 5: Determine the export coefficient for the site by dividing the total TN export from uses at the bottom of Column (4) by the
total area at the bottom of Column (2).
(1}
(2)
[3)
(4)
Type of Land Cover
Area
TN export coeff 7N
export from use
j
[acres]
(lbslaclyr)
(Ibslyr)
Permanently protected undisturbed !
0
0.6 i
0
open space forest, unmown meadow)
Permanently protected managed
3,94
1.2
4.73
open space (grass, landscaping, etc.)
Impervious surfaces (roads, parking
_
lots, driveways, roofs, paved storage
4.83
21.2
102.40
areas, etc.)
TOTAL
8.77
- --
107.12
Total TN Export = 12.21. lbslaclyr
Assume SMP Removal Efficiency = 40%
TN- Export After BMP = 64.27 Ibslyr
Therefore, provided reduction = 42.85 Ibs /yr
REFERENCE:
"City of Raleigh, Stormwater Management Design Manual" January 2002.
Apportioning_RevAs To Wetlands

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LETTER OF TRANSMITTAL
TO: NC Division of Water Quality
401 Wetlands WQ Certification Unit
1650 Mail Service Center
Raleigh, North Carolina 27699 -1650
KELLER ENVIRONMENTAL
ENVIRONMENTAL CONSULTANTS
7921 Haymarket Lane, Raleigh, NC
(919) 749 -8259
(919) 803 -0970 Fax
DATE: February 12, 2013
ATTENTION: Karen Higgins
RE: SW Cary Parkway Daycare
DWQ Project: 2012 -1140
WE ARE SENDING YOU THE FOLLOWING:
❑ Pre - construction Notification (PCN) ® Plans ❑ Maps
® Documents ❑ Other
THESE ARE TRANSMITTED AS CHECKED BELOW:
® For approval ® As requested ® For review & comment
® Please reply ❑ See below ® For your files
❑ Specifications
❑ Regular Mail ❑ Fed -Ex ® Delivered by KE ❑ Picked Up
COPIES
DATE
DESCRIPTION
2
2 -11 -12
Re- Submittal Letter
2
2 -1 -13
DWQ Request for More Information Letter
2
2 -11 -12
Forrest Creek Riparian Buffer Mitigation Bank Letter
2
7 -11 -05
Town of Cary Approval Letter
2
Alternate Site Plans (2)
2
6 -6 -05
EEP Nutrient Offset Receipt
2
6 -14 -05
Kilarney Pointe Memorandum
1
4 -15 -05
Kilarney Pointe Stormwater Wetlands Design Manual
2
3 -16 -05
Kilarney Pointe Plat
2
SW Cary Parkway Daycare Preliminary Site Layout
Remarks:
THANK YOU!
Rec'd By: Signed