20041896 Ver 1_Complete File_20041123

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
July 25, 2005
David E. Gardner
102 Anna Lake Lane
Cary, NC. 27513- 3590
Subject Property: Gardner Property, Lot 1.
Approval of Storm water Management Plan
Dear Mr. Gardner:
DWQ Project # 04-1896
Wake County
On July 25, 2005 the Division of Water Quality (DWQ) received the revised storm water management plan prepared
by your engineer, Mr. Harold Yelle II., of Aiken & Yelle Associates, P.A. to comply with the conditions of Major
Variance approval as per WQC December 8, 2004 decision issued on January 10, 2005.
The Plan has been reviewed and satisfies the storm water management conditions of the Variance and Neuse River
Buffer Rules as stated. The structural storm water practices as approved by DWQ as well as drainage patters must be
maintained in perpetuity. In addition, you should obtain or otherwise comply with any other required federal, state
or local permits before you go ahead with your project including (but not limited to) Erosion and Sediment Control,
Neuse Buffer Rules and Non-discharge regulations.
No changes to the structural storm water practices shall be made without written authorization from the Division of
Water Quality. Storm water easements shall be recorded for a distance of at least 10 feet on each side of all storm
water conveyances on all lots containing these structures including future access for maintenance. The storm water
easements shall allow for the ability to maintain the structures, perform corrective actions as described above and
shall provide protection of the structures from potential alternations by future property owners. The authorization to
proceed with your proposed impacts or to conduct impacts to waters as depicted in your application and as
authorized by the Certification shall expire upon expiration of the 404 Permit.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and the
Neuse riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any questions, please
telephone Sam A. Aghimien, at 919-733-3574.
Sincerely,
CBKlsaa
Alan W. Klimek, P.E.
cc: USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
Harold Yelle II, Aiken & Yelle Associates, 3755 Benson Drive, Raleigh, NC.27609
Filename: 04-1896 Gardner Property, SWM, Approval, 7-25-05
NorthCarolina
401 Oversight/Express Review Unit ,NRIIlCally
1650 Mail Service Center, Raleigh, North Carolina 27699.1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: htta://h2o.enr.state.nc.us/ncwetlands
An Equal Opportunity/Affirmative Action Employer - 500% Recycled/10% Post Consumer Paper
Re: Ocfober WQC Meeting (December 8th)
Subject: Re: October WQC Meeting (December 8th)
From: Cyndi Karoly <[e-mail]>
Date: Thu, 04 Nov 2004 12:34:40 -0500
To: Bob Zarzecki <[e-mail]>
CC: John Dorney <[e-mail]>, Tom Reeder
<Tom.Reeder @ ncmail. net>
Bob - I will stand in for you as necessary. Please advise me of
project info as it develops.
Bob Zarzecki wrote:
Cyndi,
{ The piedmont section of the stream training class is currently
scheduled for the same day as the December WQC meeting. Right now
I have potentially three items on the agenda. They include Pitt
County's delegation of the buffer rule. I don't expect Pitt
County to be ready for December. The other two are potential
variances. I think that I've talked one of them into a Minor and
the other is up in the air. This is the one that Sean Clark and I
discussed with you last week with the owner who wants to redesign
an existing house beside a pond in Cary. He's the one who owns all
the buffer around the pond. His current design would impact a
very small amount of Zone 1 that's currently only mulch with
little to no vegetation, but he would be adding impervious surface
where it did not previously exist. I'm trying to get them to
redesign to avoid the need for a Major, but they may not be able
or willing to do this. If not, then they will want to go in
December. S&EC is working with them and I expect that the
application would be complete and shouldn't require much
discussion or even possibly a presentation, but you never know.
If Pitt County or Boyd's Randleman stuff gets on the agenda, then
I need to be there. If not, then I would like to find someone to
present this variance if they decide to go forward with it. Are
you available on the 8th to present this variance? I would do the
leg work of course. If not, then I've already talked to John
about skipping out for the 8th but helping on the 9th. He's ok
with it, but would like me there. I also want to play it somewhat
by ear and make a final decision on this later this month (mail
out is due on the 22nd). The only other person I can think of is
Tom. Sorry Tom. He of course has been in front of the WQC several
times and has been witness to many variance presentations.
- Bob
1 of 1 11/4/2004 12:38 PI
WQC & EMC items for December
Subject: WQC & EMC items for December
From: Jeff Manning <[e-mail]>
Date: Thu, 28 Oct 2004 10:53:50 -0400
To: "Dianne.reid" <[e-mail]>, Scott Carpenter
<[e-mail]>, Kim Colson <[e-mail]>, Elizabeth
Kountis <[e-mail]>, Bob Zarzecki
<[e-mail]>, Rich Gannon <[e-mail]>, Michelle
Raquet <[e-mail]>, Coleen Sullins
<[e-mail]>, Darlene Kucken <[e-mail]>
CC: Jimmie Overton <Jimmie.Overton @ ncmail. net>, Tom Reeder
<Tom. Reeder@ ncmail.net>, TED BUSH <[e-mail]>, Boyd
DeVane <[e-mail]>, Cyndi Karoly
<[e-mail]>, Alan Clark <[e-mail]>,
[e-mail], curl bailey <[e-mail]>, Michelle Woolfolk
<Michelle.Woolfolk@ ncmail.net>, Dave Goodrich <Dave. Goodrich@ ncmail.net>,
"bradley.bennett" <[e-mail]>, John Dorney
<[e-mail]>, "DENR.SUPVSWP"
<[e-mail]>
I have the following items slated for the December WQC and EMC meetings.
Please note the proximity of the due dates, especially for the EMC items. Those of
you that have items should adhere to the due dates listed below for each meeting.
Thanks.
WQC:
1. CHPPs Approval (on WQC prior to EMC if issues arise)(Dianne Reid)(send
to EMC next day)
2. Water Supply Ordinance Approvals (Scott Carpenter - Cornelius, any
others ?)(consensus?)
3. Update on Rule Amendments to 2H.0200 (Kim Colson)(Information)
4. Request to Proceed to EMC for Permission to Go to Public Hearing for
Reclassifications: Broad River to Class WS for Shelby and Uwharrie River
to Class B (Elizabeth Kountis)(Action)
5. Major Variances to the Neuse River Riparian Area Protection Rule (Bob
Zarzecki) (Action) (Might have two requests - but these may not be ready)
6. Request Consideration to Delegate the Riparian Buffer Program to Pitt
County Local Government (Bob Z., but Muni is probably not ready - if ready,
1 of 3 11/4/2004 12:31 Ply
WQC & EMC items for December
both WQC and EMC)
7. Renewal of Tar-Pamlico Point Source Agreement (Rich Gannon)(both WQC
and EMC)(Action)
8. Request Approval to Take the Draft French Broad River Basin Plan to Public
Meetings, or some other Basin Planning Presentation (Michelle Raquet or
Darlene Kucken)
IMMPORTANT DUE DATES for WQC items are as follows. Please mark your
calendars to save me from reminding you:
By Nov. 18 - 12Noon - Confirm your spot on the agenda, adjust your title as needed
and send me the title and a short description, 4 to 6 lines is adequate. Please be sure
to include in your description what you are asking the Committee to do (what action
you're asking for).
By Nov. 23 - 12Noon - send me 18 copies of any attachments/supporting materials
that the Committee members need to receive.
Dec. 2 - briefing meeting 8:30 AM in 9th FCR.
Dec. 8 - WQC, time TBA.
A separate set of due dates apply to the EMC items. I have the following items for
the
EMC:
1. Renewal of Tar-Pam Point Source Agreement (Rich Gannon)(Action)
2. Approval of Final CHPP Document (Dianne Reid)(Action)
3. ??? Request to Delegate Buffer Programs to Pitt County (Bob Z, if
ready)(Action)
IMPORTANT DUE DATES for the EMC items are as follows:
By Nov. 8 - 12Noon - Send your title to me.
By Nov. 9 - 5PM - Send your EMC item description to me.
By Nov. 22 - 5PM - Deliver 25 copies of supporting materials/attachments to Lois
Thomas in the Director's office and assure that Coleen and Alan receive copies.
Dec. 2 - briefing meeting 8:30 AM in 9th FCR.
Dec. 9 - EMC
If you have any questions or concerns, or additional items to include, please let me
know. Additionally, please send me any future items that you have in your heads,
and those don't necessarily need to be carved in stone. Thanks all,
Jeff Manning
2 of 3 11/4/2004 12:31 PT
NC DENR - DIVISON OF WATER QUALITY
.0315 NEUSE RIVER BASIN
2B .0300
Classification
Name of Stream Descr iption Class Date Index No.
Beaverdam Creek (east side From soruce to Neuse River C;NSW 05/01/88 27-29
of Neuse River) (Neuseco
Lake, Beaverdam Lake)
Bridges Creek (Bridges Lake) From source to Neuse River C;NSW 05/01/88 27-30
Milburnie Creek (Milburnie From source to Neuse River C;NSW 05/01/88 27-31
Lake)
Mango Creek From source to Neuse River C;NSW 05/01/88 27-32
Crabtree Creek From source to backwaters of C;NSW 05/01/88 27-33-(1)
Crabtree Lake
Turkey Creek From source to Crabtree C;NSW 05/01/88 27-33-2
Creek
Coles Branch From source to Crabtree C;NSW 05/01/88 27-33-3
Creek
South Fork Coles Branch From source to Coles Branch C;NSW 05/01/88 27-33-3-1
Crabtree Creek (Crabtree From backwaters of B;NSW 04/01/94 27-33-(3.5)
Lake) Crabtree Lake t o mouth of
Richlands Creek
Brier Creek From source to Crabtree C;NSW 05/01/88 27-33-4
Lake, Crabtree Cr.
Little Brier Creek From source to Brier Creek C;NSW 05/01/88 27-33-4-1
Stirrup Iron Creek From source to Brier Creek C;NSW 05/01/88 27-33-4-2
Black Creek From source to Crabtree C;NSW 05/01/88 27-33-5
Lake, Crabtree Cr.
Haleys Branch From source to Crabtree C;NSW 05/01/88 27-33-7
Creek
Reedys Creek (Reedy Creek From source to Crabtree B;NSW 05/01/88 27-33-8
Lake) Creek
Sycamore Creek (Big Lake) From source to Crabtree B;NSW 05/01/88 27-33-9
Creek
Pots Branch From source to Sycamore B;NSW 05/01/88 27-33-9-1
Creek
Turkey Creek (Lake Ann) From source to Sycamore B;NSW 05/01/88 27-33-9-2
Creek
Crabtree Creek From mouth of Richlands C;NSW 05/01/88 27-33-(10)
Creek to Neuse River
Richlands Creek From source to Crabtree C;NSW 05/01/88 27-33-11
Creek
Hare Snipe Creek (Lake Lynn) From source to dam at Lake B;NSW 05/01/88 27-33-12-(1)
Lynn
Hare Snipe Creek From dam at Lake Lynn to C;NSW 05/01/88 27-33-12-(2)
Crabtree Creek
House Creek From source to Crabtree C;NSW 05/01/88 27-33-13
Creek
12
mailbox:///CI/Documents%20and%20Settings/bob_zarzecki/Applicat...
Subject: Gardener Major Variance Aerial Photos - FYI
From: Bob Zarzecki <[e-mail]>
Date: Mon, 29 Nov 2004 12:14:56 -0500
To: Cyndi Karoly <[e-mail]>
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1 of 2 11/29/2004 12:21 PM
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0143458
GARDNER, DAVID E
& CHERYL C
102 ANNA LAKE LN
CARY NC
27513-3590
08604
2657
6/8/2000
7.95
112871
99500
INDIVIDUAL
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102
ANNA LAKE
LA
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
July 25, 2005
DWQ Project # 04-1896
Wake County
David E. Gardner
102 Anna Lake Lane
Cary, NC. 27513- 3590
Subject Property: Gardner Property, Lot 1.
Approval of Storm water Management Plan
Dear Mr. Gardner:
On July 25, 2005 the Division of Water Quality (DWQ) received the revised storm water management plan prepared
by your engineer, Mr. Harold Yelle H., of Aiken & Yelle Associates, P.A. to comply with the conditions of Major
Variance approval as per WQC December 8, 2004 decision issued on January 10, 2005.
The Plan has been reviewed and satisfies the storm water management conditions of the Variance and Neuse River
Buffer Rules as stated. The structural storm water practices as approved by DWQ as well as drainage patters must be
maintained in perpetuity. In addition, you should obtain or otherwise comply with any other required federal, state
or local permits before you go ahead with your project including (but not limited to) Erosion and Sediment Control,
Neuse Buffer Rules and Non-discharge regulations.
No changes to the structural storm water practices shall be made without written authorization from the Division of
Water Quality. Storm water easements shall be recorded for a distance of at least 10 feet on each side of all storm
water conveyances on all lots containing these structures including future access for maintenance. The storm water
easements shall allow for the ability to maintain the structures, perform corrective actions as described above and
shall provide protection of the structures from potential alternations by future property owners. The authorization to
proceed with your proposed impacts or to conduct impacts to waters as depicted in your application and as
authorized by the Certification shall expire upon expiration of the 404 Permit.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and the
Neuse riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any questions, please
telephone Sam A. Aghimien, at 919-733-3574.
CBKlsaa
Sincerely,
• /?/Cc?,2r a`
Ala W. Klimek, P.E.
cc: USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
Harold Yelle II, Aiken & Yelle Associates, 3755 Benson Drive, Raleigh, NC.27609
Filename: 04-1896 Gardner Property, SWM, Approval, 7-25-05
401 Oversight/Express Review Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] / Internet: http://h2o.enr.state.nc.us/ncwetiands
Noi` Carolina
Nafura!!y
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
04-!896
§@gVpD
February 1, 2005 FEB 0 3 2005
. WATER QUAl..•-*v
WE1pENR1NpsTO????,
David Gardner
102 Anna Lake Lane
Cary NC 27513
Cyndi Karoly
NC Division of Water Quality
401 Wetlands Certification Unit
1650 Mail Service Center
Raleigh NC 27699-1650
RE: Gardner Property Major Variance, 102 Anna Lake Lane, Cary NC
Dear Mrs. Karoly:
This letter is to document my acceptance of the terms of the approved major variance per
your department's letter dated January 10, 2005 and to provide as defined in your letter
"written assurances" that the twenty foot retained buffer located around the lake on said
property will be protected from all future development.
Thank you for your attention to this matter and for your clarification per our phone
conversation today. I appreciate the fine job your department is doing to preserve the
quality of our waters.
Sincerely,
David Gardner
... I would like to begin this presentation by reviewing the requirements for a variance and the
responsibilities of the Division and the Environmental Management Commission

... the variance procedure is described within Section 9 of the Neuse & Tar-Pamlico Buffer
Rules
.. I have provided you with a copy of Section 9
... the Division's responsibilities and current procedures for requests for variances are as
follows
...persons wishing to request a Major Variance are asked to complete a "Variance Request
Form"
... the applicant provides three draft copies of this form to the Division for review
... the Division is required to perform a "Finding of Fact" as to whether the requirements for
granting a variance have been met
... these requirements are described within Section 9(a)
... after an initial review of the draft request, the Division provides comments back to the
applicant and notifies the applicant of the Division's findings and recommendation
... the applicant works with the Division on preparing a final variance request package which is
submitted to the Commission and presented during the next regularly scheduled Water Quality
Committee meeting
... a cover letter prepared by the Division is attached to the final variance request that includes a
summary of the project, the Division's "Preliminary Findings" and recommendation
... the Division typically recommends that conditions or stipulations be included with any
variance approval
... stormwater management and buffer mitigation have been required as conditions for almost
all of the previously approved variances
... technically, if the Division determines that a variance request does not meet the requirements
for granting a variance the request is denied and the applicant has the option to request an
appeal through the Office of Administrative Hearings
... however, in the past the Division has presented every variance request to the Commission for
review
... the Commission's responsibilities are as follows
... the rule requires that the Commission review and decide on major variance requests
... however, on February 11, 1999, the Commission delegated the review and decision of Neuse
River Buffer Major Variances to the Water Quality Committee
this delegation was expanded on May 11, 2000 for review of all "Individual Buffer Variance
Decisions"
... the WQC may send the request up to the full Commission for decision if they determine that it
is in the best interest of the water quality program
... also, the applicant may request that the full Commission review their variance
... the Committee has 90 days to review the variance; request and "Preliminary Findings"
... the purpose of the Committee's review is to determine if it agrees that the requirements for
granting a variance have been met
... the Committee must decide to either approve the variance request, approve it with conditions
or stipulations or deny the variance request
... any decision on a variance request by the Committee may be requested to be sent to the full
Commission for a final decision by either the applicant or the Committee
... Requests for appeals of decisions made by the Commission shall be made to the Office of
Administrative Hearings
... the Division is responsible for writing and issuing the Committee's decision
... this decision is typically included within the 401 Water Quality Certification issued by the
Division when one is required, otherwise it's a stand alone document
... finally and before I begin presenting the variance request in front of you today, as you are
aware the buffer rules can be delegated to local governments
... if the rule is delegated to a local government, then the local government is responsible for
reviewing variance requests and presenting the "preliminary findings" to the Commission
... currently, only Orange County has been delegated the Neuse Buffer Rule and the Division has
an agreement with them to work closely on any Major Variance requests
... questions?
2
Major Variance
• Neuse - 15A NCAC 02B .0233(9) &
Tar-Pamlico - 15A NCAC 02B .0259(9)
Responsibilities of the Division
- "Finding of Fact"
- Requirements for Granting a Variance Sec. 9(a)
- "Preliminary Findings" & Recommendation
Major Variance
• Responsibilities of the WQC/EMC
- delegated to WQC in 1999 & expanded in 2000
- must review within 90 days
- determine if requirements have been met
- decide on one of the following actions
• Approve
• Approve w/ Conditions or Stipulations
• Deny
Request for Major Variance
Neuse River Riparian'Buffer Area
Protection Rule
102 Anna Lake Lane
Gardner Residence
Cary, Wake County, NC
December 8, 2004
Request for Major Variance
Neuse River Riparian Buffer Area
Protection Rule
102 Anna Lake Lane
Gardner Residence
Cary, Wake County, NC
December 8, 2004
3
Variance Request
102 Anna Lake Lane
Vicinity Maps

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4
Variance Request
102 Anna Lake Lane
Drainage Area to Home site

5
Variance Request
102 Anna Lake; Lane
Existing and proposed Impervious Surface Area
within proposed footprint
Foot Print of Carrent Hoax and Impervious Surfaces
102 ANiA LAKE UMtb D]tE 1a2 R)oTPRwr
Y?bfq I•?s40tf
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8
Variance Request
102 Anna Lake Lane
Final House Plan Footprint
Foot Print With Proposed Renovation
- 102AMALWAL r, ZDM 162 FOOTPRM

C-d m P-1-
I2.6?9H

445 sq fi area converted to Impervious:
1216 til fz wta convened to Pervious
9
Variance Request
102 Anna Lake Lane
10
Photo 1-10.toot wide gravel driveway entrance to the
property crossing the dam (pond is to the right)
Photo 2 - Gravel driveway and parking area in front of the
house and garage
Variance Request
102 Anna Lake Lane

n ..
Photo 3 -View of the front of the house taken from the garage
11
Photo 4 - View of parking area in front of the garage taken from
the front porch of the house
Variance Request
102 Anna Lake Lane
i
r,
12
Photo 5 - Front of the prage show ing conczete portion of the
driveway leading down to the lower gravel parking area
Photo 6 - Different angle of the same area as in Photo 5 taken
from the lower gravel parking area
Variance Request
102 Anna Lake Lane
13
Photo 7-Area where the concrete driveway meets the lower
gravel parking area in Zone I
Photo S - View of concrete drive and lower gravel parking area
with lake in the upper right corner
1
f r -
? Y
Variance Request
102 Anna Lake Lane
? f
P

Photo 9 -View from the patio area of the currently pervious area
between the patio and the portion of the house that extends out
over the lake

Photo 10 - View of some of the trees planted along an existing
fence tine. Some of the tress shown in this picture are within the
- riparian buffer of the lake
14
Gardener Major Variance Aerial Photos - FYI
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2 of 2 12/4/2004 2:22 Ply
Iardener Major Variance Aerial Photos - FYI
Subject: Gardener Major Variance Aerial Photos - FYI
From: Bob Zarzecki <[e-mail]>
Date: Mon, 29 Nov 2004 12:14:56 -0500
To: Cyndi Karoly <[e-mail]>
1 of 2 12/4/2004 2:22 PM
Gardener Major Variance Request -- 102 Anna Lake Lane
Subject: Gardener Major Variance Request -- 102 Anna Lake Lane
From: Bob Zarzecki <[e-mail]>
Date: Tue, 23 Nov 2004 11:00:52 -0500
To: Sean Clark <[e-mail]>
CC: Jeff Manning <[e-mail]>, Cyndi Karoly
<[e-mail]>, "Mike Horan (E-mail)" <[e-mail]>,
"Eric Kulz (E-mail)" <[e-mail]>
Sean,
Attached is the Preliminary Findings & Recommendation cover letter.
Please print this off and attach it to the front of your final
variance request package. Make 18 copies of the final package
(including this cover letter) and hand deliver them to Jeff Manning
by the end of the day today (preferably as close to lunch time as
possible). Jeff's office is office number 625 on the 6th floor of
the Archdale Building. His direct line if you have any problems is
733-5083 ext. 579. He'll be expbcting you. I told you to get me
two copies of the final package by Monday, November 29th. Instead,
please get me one copy and send the other copy to the Raleigh
Regional Office (Mike Horan or Eric Kulz) by Monday. This will
eliminate the delay in me getting them their copy. Thanks.
Mike & Eric,
This will be presented to the WQC on Wednesday, December 8th. They
meet in the ground floor hearing room of the Archdale Building. The
meeting will most likely begin around 11 am. It's looking like
Cyndi will be presenting the variance.
- Bob
Map to the Archdale Building (Sean, I think that you've been there,
but just in case.) --
http://www.enr.state.nc.us/html/downtownraleighmap.htm (Archdale
Bldg. is Building No. 7)

Pei Qh_
1 of 1 11/23/2004 12:25 PT

Consideration of a Request for a Major Variance
from the Neuse River Riparian Area Protection Rule,
15A NCAC 02B.0233
Water Quality Committee Meeting
N.C. Environmental Management Commission
December 8, 2004
A request has been received for the Water Quality Committee to grant a variance from the Neuse
River Riparian Area Protection Requirements for a proposed renovation of an existing residential
home at 102 Anna Lake Lane, Cary, Wake County, North Carolina (see attached request). The
applicant, Mr. David E. Gardener, is proposing to renovate his existing home. The proposed
renovation would add approximately 495 square feet of new impervious surface within the
protected buffer where it did not previously exist. The existing house (constructed in the 1930's
and renovated in the 1970's) is immediately adjacent to and partially built over a small lake
located within the Black Creek watershed (C NSW). The applicant has proposed to use bio-
retention "rain gardens" to control stormwater associated with the proposed renovation including
retained portions of the existing home that are currently not being treated by an engineered
stormwater management device.
The Division of Water Quality has determined that Mr. Gardner's variance request meets all of
the requirements for granting a variance under 15A NCAC 2B .0233(9)(a) if the conditions listed
below are met.
Recommendation:
Division of Water Quality (DWQ) Staff recommend the approval of this variance request if
the conditions below are met.
1. The applicant shall obtain DWQ approval of a final stormwater management plan for
the bioretention / "rain garden" devise prior to impacting the buffer and install the
devise as per the approved plan.
2. The applicant shall provide assurances to the DWQ such that the retained buffer
located on the applicant's property and around the lake will be protected from future
development. If these assurances can not be provided or are not acceptable to the
DWQ, then the applicant shall make a payment into the Riparian Buffer Restoration
Fund to mitigate for the 495 square feet of new impervious surface as per 15A NCAC
02B .0242. The required area of mitigation shall be equal to 1,485 square feet.

11/30/04
EMC WATER QUALITY COMMITTEE MEETING
AGENDA
Dec. 8, 2004
Archdale Building - Ground Floor Conference Room
12:00 Noon
Executive Order No. I mandates that the Chair inquires as to whether any member knows of any known conflict of interest or
appearance of conflict with respect to matters before the Commission. If any member knows of a conflict of interest or appearance
of conflict, please so state at this time.
12:00 Noon -Opening Comments Chairman Peterson
*Asterisk indicates consensus item where no presentation is planned, but staff is present if there are
questions.
*1. Request for Approval of Two Local Government Revised Water Supply Protection
Ordinances in Compliance with the Water Supply Watershed Protection Rules -
(Consensus Action Item) (Scott Carpenter)
The DWQ's Water Supply Watershed Protection Coordinator worked with the Towns of
Cornelius and Lillington to revise their Water Supply Watershed Protection ordinances. The staff
commends the local governments and recommends that the Water Quality Committee approve the
amended ordinances (attachment enclosed).
2. Request Permission to Send the Draft French Broad River Basinwide Water Quality
Plan to Public Meetings - (Action Item) (Michelle Raquet)
DWQ staff will present the draft French Broad River Basinwide Water Quality Plan and
request to send it to public meetings. Preceding the technical presentation, a brief summary of the
agency's improved public input process will be overviewed (attachment enclosed).
3. - (Item Removed).
4. Request Permission to Proceed to the EMC with Proposed Reclassification of a Section
of the Uwharrie River in Randolph and Montgomery Counties (Yadkin-Pee Dee River
Basin) to Class B - (Action Item) (Elizabeth Kountis)
A request to reclassify a portion of the Uwharrie River has been received by the Division of
Water Quality. These waters meet the qualifications for the proposed reclassification. The WQC
will be asked to approve this reclassification request in order for staff to proceed to the full
Commission for permission to send the proposed reclassification out to public hearing (attachment
enclosed).
5. Request for Consideration of Major Variance to the Neuse River Riparian Buffer
Protection Rule (15A NCAC 2B.0233) - (Action Item) (Cyndi Karoly)
A request has been received for the Water Quality Committee to grant a variance from the
Neuse River Riparian Area Protection requirements for a proposed renovation of an existing
residen ial home at 102 Anna Lake Lane, Cary, NC. The applicant, Mr. David E. Gardener, is
t-A /9-) 6 L(
bl-\ C -,0

I 1/30/04
proposing to renovate his existing home. The proposed renovation would add approximately 495
square feet of new impervious surface within the protected buffer where it did not previously exist.
The existing house (built in 1964) is immediately adjacent to and partially built over a small lake
located within the Black Creek watershed (C NSW). The applicant has proposed to use bio-
retention "rain gardens" to control stormwater associated with the proposed renovation including
retained portions of the existing home that are currently not being treated by an engineered
stormwater management device. The DWQ staff recommends the approval of the major variance
request (attachment enclosed).
6. Presentation of Draft Rule Text for Waste Not Discharged to Surface Waters 15A
NCAC 211.0200 - (Information Item) (Kim Colson)
The Division of Water Quality will present draft text for revisions to rules related to non-
discharge systems. These systems include wastewater collection systems, animal waste
management systems, wastewater residuals, and other non-discharge systems including wastewater
irrigation, reclaimed water utilization, groundwater remediation and soil remediation projects.
The intent of the proposed rule making is to restructure the existing rules, make editorial
updates, make the rules easier to follow, clarify requirements, and reflect current policy not
previously addressed in the rules. Staff will also propose criteria to provide routine consideration of
an applicant's compliance status under 143-215.1(b)(4)b.2. Another goal of the rule process is to
allow delegation from EPA for the federal residuals program under 40 CFR parts 501 and 503.
Additional federal rule references will be made to address recently promulgated Concentrated
Animal Feeding Operations rules.
Staff will present an overview of the rules and present draft text that will be used to present
to stakeholders. Staff is not requesting approval of the draft text at this time but will provide a draft
to the Committee for preliminary review and comment (Executive Summary attached).
Closing Comments
Chairman Peterson
2
Ju-f 25 05 03:56p
Aiken & Yelle Associates [phone] p.1
r? Aiken & Yelle Associates, PA
?r - Professional Engineers & Land Surveyors
AYES
3755 Benson Drive
Raleigh, North Carolina 27609
919-877-9992 Fax[phone]
e-mail ayes@BELI?SOU'TH.net
zs- os'
M I . J Date:
To
F including this
Pages:
ax f? 8
cover sheet
From:
Subject: (A 1 1?5 t7? NC.
WIS
` Corrunents
7"A k yoo
1 ?14
NAME:DWO-WETLANDS
P. 1
Jul 25 05 03:5Gp Aiken & Yelle Associates 19191877-9979 p.2
GARDNER RESIDENCE
BIO RETENTION AREA OPERATION AND MAINTENANCE AGREEMENT
As in the case of any stormwater Blvd', maintenance of bioretention facilities is an import component that
ensures consistent perfomtance and aesthetics.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the Bio Retention Area for sediment accumulation, erosion, trash accumulation, vegcta.ted cover,
and general condition.
1. Repair eroded areas inunediately, re-seed as necessary to maintain good vegetative cover, 113ow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
2. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
piopcr functioning.
3. All components of the Bio Retention Area shall be maintained in good working order.
Other element of maintenance include the following:
WEEDING
As with any garden, bioretention requires weeding of unwanted plant materials. Mulching helps to reduce weed
growth and retain moisture in the soil. Weeding should be accomplished routinely as required.
WATERING
If plants wilt during the heat of the day, but recover in the evening, watering is not necessary. The plants are
simply conserving moisture. If they do not recover, watering is indicated, Another good rule of thumb is to stick
a pencil or screwdriver about four inches into the soil. If the soil is moist at that depth, watering is not needed. If
the soil is dry, and the shrubs or trees were planted within the last three years, watering is necessary.
FERTILIZATION
In traditional, intensively cropped landscapes, soil fertility (and especially the level of available nitrogen) is
considered the limiting factor to plant growth. By design, however, bioretention facilities are located in areas
where nutrients (especially nitrogen) are significantly elevated above natural levels. Therefore, it is unlikely that
soil fertility will be the limiting factor in plant growth, and thus fertilization would be unucccssary. Excess
fertilization, (besides compronusing the facility's pollutant reduction effectiveness) leads to weak plant growth,
promotes discasc and pest outbreaks, and inhibits soil life. If soil fertility is in doubt, a simple soil test can
resolve the question. If fertilization should become necessary, an organic fertilizer will provide nutrients as
needed without disrupting soil life.
MULCHING
The mulch materials placed in the facility will decompose and blend with the soil medium over time. Typically,
mulch material should be re-applied once every six months. The depth of the mulch layer should be no more
Page I of 3
JUL-25-2005 MON 13:01 TEL:[phone] NAME:DWQ-WETLANDS P. 2
Jul 25 05 03:56p Aiken & Yelle Associates [phone] p.3
. The yclch layer otween
than 3". Mulch applied any deeper than three inches reduces proper oxyg n and c 1 endsoilinxide
the soil and the atmosphere, and keeps plant roots from making good contact With
i
provides an important role in the bioretention physical properties for removng heavy metals from the system.
DIVIDING & REPLANTING
t
The properly designed facility should thrive and allohound be divided t iri spring or Call. Plants that doo eventually
becoming overcrowded. lfthis occurs, perennial plants
perform well, or die, should also be replaced.
TRIMMING AND HARVESTING
Current practice is to leave ornamental grasses and perennial seed heads standing to provide winter interest,
wildlife forage, and homes for beneficial insects. Plants should not be cut back until spring when new growth
commences, and even then it is only done for neatness, it does not impact growth. Plants may be pinched,
pruned, sheared or deadheaded during the growing season to encourage more flowering, a bushier plant, or a
fresh set of leaves. Diseased or damaged plant pants should be pruned as they occur, and if a plant is pest-
infested, then perform cleanup in fall to deny the pest a winter home. Trees and shrubs may be pruned for shape
or to maximize fruit production.
STANDING WATER PROBLEMS
Bioretention facilities are designed to have water standing for up to four hours. If (his period is routinely
exceeded, the facility may not be fuuictioning properly. Should standing or pooling water become a maintenance
burden, minor corrective action can usually correct it. Clogging usually causes pooling water or blockage of
either the surface layer or fines obstructing the filter fabric (if used) used between the gravel bedluunderdrain (if
used) and the surrounding plaxtting soil. Removing the mulch layer and raking the surface may correct the
surface blockage problem. For blocked filter fabric, use lengths of small reinforcing bar (2'-3' 44 rebar) to
puncture the fabric with holes every V on center. If the soils themselves are causing the problem, punch holes in
the soil or optionally, install a "sand window" at least I foot wide running vCxtically to the underdrain system
elevation. In a worst-case scenario, the entire facility way need to be re-installed.
TRASH AND DEBRIS
Runoff flowing into bioretention facilities may carry trash and debris with it, particularly i.n commercial settings.
Trash and debris should be removed regularly both to ensure that inlets do not become blocked and to keep the
area from becoming unsightly.
PET WASTE
Pet waste should not. he left to decay in bioretention facilities because of the danger of disease-causing
organisms.
Page z of 3
JUL-25-2005 MON 13:01 TEL:[phone] NAME:DWO-WETLANDS P. 3
Jul 25 05 03;56p Riken & Yelle Associates [phone] p.4
I acknowledge and agree by my signature below that 1 am responsible for the performatx.c of tleG seven
maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any
churiges to the system or responsible party.
Print name: V
Title:
Address:. 10 Z. Atik A LA KE i G z7 1 ?5
Ph(
Sig
Dal
Note. The legally responsible patty should not be a homeowners association unless rnuzc Lban 50% of the lots
have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of AIC
County of Cu , do hereby certify that paik) ?nfiJeLLP
personally appeared before me this. day of , and acknowledge the due
execution of the forgoinq wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
OFFICIAL SEAL
t

SEAL
My commission expires 3? av
Pep 3 of 3
JUL-25-2005 MON 13:02 TEL:[phone] NAME:DWQ-WETLANDS P. 4
Jul 25 05 03:56p Aiken & Yelle Assooiates 19191877-9979 p.5
DWQ Prnject No. ,
QIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1, PROJECT INFORMATION (please complete the following informabon):
Project Name: ?rRRll+?G? 12 iDENCL•
Contact Person: 14AILOW YCLi-C- 74 Phone Number: (i !q
For nrojecls with multiple basins, specify which basin tllis worksheet applies to: 4551#4
1369 2 a wool E',evation ft• (elevation of the orifice invert out)
Temporary Pool Elevation 1 Q ; 0 ft. (elevation of the outlet structure invert in)
Bioretention Surface Area
Drainage Area
Impervious Area
Rational C Coefficient
Size %
7 ? r7 sq, ft-
(on-site and off-site drainage to the basin)
(cn-site and off-site drainage to tha basin)
Inlet Velocity
inlet flow depth
Deoth to Ground Water
Planting Soil Infiltration Rate
in-Situ Soil Infiltration Rate
ll. REQUIRED ITEMS CHECKLIST
V ?40 ac.
0. ac.
%
0.61 _lps
b in
4: 5 ft.
r U.5L M in.lhr.
1.01: in.ihr.
(either 5% in wisand under drain or 7%/ n w/o)
(the soil layer down to 4 feet)
(the soil layer below 4 feet or below the sand bed)
Initial in the space provided to il)&;ale the following design requirements have been met anri mippoiting documentation is attached. iia
requirement has not been met, attach an explanation of why. At a m.nimum, a complete stormwater management plan submittal includes
a wor'sheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully extxuled operation and mointonance agreement. An incornpiale submittal package will resuit in a request for
additional information and will substantially delay final review and approval of the project.
Aaolicants Initials
H Al No vertical sand bed is proposed
The bioretention area is of least 40 feet by 15 feet.
4}k,1 Sheet flow is provided at inlet.
HAY Water table depth is greater than 6 feet.
HAY Minunum of 6" ponding is provided.
1+ t.1 _
The ponded area will draw down in less than 4 days.
'
14 AY L in/hr.
Planting soil infiltration rate is greater,harm ll.b
H A `( The in-situ soil infiltration rate is greater tlman 0.2 in/hr.
i?AY A planting plan with species and densities is provided.
HAY
WAY Mulch layer is specified in plans.
Planting snit meets minimum soil specifications ,NCDENR Stormwaler Best Management
Practces Manual, April 1999)
14A-Y Plan details for the bioretention area provided.
tJ ?Ar
id
d

e
.
1( Plan details for the irdet and outlet are prov
14
}} _An operation and main'.enance agreement signed and notarized 'oy the respoimsible pary is provided.
Please nose that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains
JUL-25-2005 MON 13:02 TEL:[phone] NAME:DWO-WETLANDS P. 5
Sui 25 05 03:57p Aiken & Yelle Associates [phone] p•8
DVVQ Project
DIVISION OF WATER QUALITY - SIOREI'ENTiON AREA WORKSHEET
I_ PROJECT INFORMATION (please complete the following information);
Project Name : (7Aa o..4ci , ir?i-5 i Or N (-C
Contact Person: I?AVLOUID YZII.t_C -'IL Phone Number: (`f!9 Z? Z _
For projects with multiple basins, specify which basin this worksheet applies to: OA15iW KCA 4; Z,
P?aue?'ooi Elevation i (elevation of the orifice inverlout)
Temporary Pool Elevation ti i 2 . r? fl. (elevation of the outlet structure invert in)
Bioretention Surface .Area sq• It.
Drainage Area 0.210 ac. (on-site and off-site drainage to the basin)
Impervious Area 0. t,)G ac. (on :ale and oft-sits drainage to the 17asin)
Rational C Coefficient 0.+8
Size % j5, C °/o (either 5°/o in w(sand under drain or T% in wlc)
inlet Velocity Cs? ?+ T 'ps
inlet {low depth n
uepih to Ground Water i t b T h
Planting Soi! htfiitration Rate _0, - roily'- (the soil layer down to 4 feet)
in./hr. (tile soil layer below 4 feet or below the sand beet)
In-Situ Sal Infiltration Rate 1,07-
11, REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and suppoiting documentation is attached. ff a
requirement has nol teen met attach an explanation of why. At a minimum, a complete stontiwater management plan submittal includes
a worksheet for each BMP, de_agn calculations, plaits and specific a ions showing all BMPs and outlet structure details, a detailed
d ainage plan and a fully executed operation and maintenance agreement, An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
A licap?g n? Initials
NAY No vertical sand bed is proposed
The bioretention area is at leasl 40 -eel by i5 feet
Steel now is provided al irrlei.
0i4Y Water table depth is greater tii<_n 6 feet.
i:tAY Minimum of 6" pending is provided.
RAI Tile ponded area will di an clown in less than 4 days.
HAY Plantnty soil infiltration rate is greater than 0.52 ino'iir.
4A-'l The in-situ soil infiltration rate is greater than 0.2 in/hr,
544Y A planting plan with species and densities is provided.
k}pY Mulch layer is specified in plans.
}SAY ?^Planting soil meets minimum soil speafications (NCO=NR Stormwater Best Management
Prauliues Manual, April 1999)
14AY Plan details for the bioretention area provided.
+L Plan details for the inlet and outlet are provided. ii f)r
!tA•Y Ail ulceration and maintenance ogrccmcnt signed and notarized by the responsible ip Any is provided.
Please note that underdmins beneath the plantinc soil are acceptable in the Piedmont and Mountains
JUL-25-2005 MON 13:02 TEL:[phone] NAME:DWQ-WETLANDS P. 6

Project No. DWQ Gardner Res
Project Name: 04-1896
SUBMITTED DESIGN: 1
7/25/2005
elevations
Permanent Pool (ft) 109.5
Temporary Pool (ft) 110
areas
Permanent Pool SA (sq ft) 780
Drainage Area (ac) 0.4
Impervious Area (ac) 0.17
Rational C 0.55
Precipitation (in) 0.5
REQUIRED DESIGN:
0.5 ft. depth ok
335 sq. ft. ok
ac
42.5 % impervious
sand underdrain
volumes
Inlet Velocity 0.67 0 fps ok
Inlet Flow Depth 6 in
Depth to Ground Water 9.5 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr ok
In-Situ Soil Infiltration 1.02 0.00 in/hr ok

r r
Project No. DWQ Gardner Res
Project Nam e: 04-1896
SUBMITTED DESIGN: 2 REQUIRED DESIGN:
7/25/2005
elevations

Permanent Pool (ft) 111.5 0.5 ft. depth ok
Temporary Pool (ft) 112

areas
Permanent Pool SA (sq ft) 600 146 sq. ft. ok
Drainage Area (ac) 0.2 ac
Impervious Area (ac) 0.06 30.0 % impervious
Rational C 0.48
Precipitation (in) 0.5 sand underdrain
volumes
Inlet Velocity 0.67 0 fps ok
Inlet Flow Depth 6 in
Depth to Ground Water 11.5 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr ok
In-Situ Soil Infiltration 1.02 0.00 in/hr ok

\1
l
Project No. DWQ Gardner Res
Project Name: 04-1896
SUBMITTED DESIGN: 2
7/18/2005
elevations
Permanent Pool (ft) 111.5
Temporary Pool (ft) 112
areas
Permanent Pool SA (sq ft) 580
Drainage Area (ac) 0.2
Impervious Area (ac) 0.06
Rational C 0.48
Precipitation (in) 0.05
volumes
Inlet Velocity 2.5
Inlet Flow Depth 6
Depth to Ground Water 11.5
Planting Soil Infiltration 0.52
In-Situ Soil Infiltration 1.02
REQUIRED DESIGN:
0.5 ft. depth
15 sq. ft.
ac
30.0 % impervious
no sand underdrain
0 fps
in
6ft
0.52 in/hr
0.00 in/hr
ok
ok
check veloci
ok
ok
Project No. DWQ Gardner Res
Project Name: 04-1896
SUBMITTED DESIGN: 2
7/18/2005
elevations
Permanent Pool (ft) 111.5
Temporary Pool (ft) 112
areas
Permanent Pool SA (sq ft) 580
Drainage Area (ac) 0.2
Impervious Area (ac) 0.06
Rational C 0.48
Precipitation (in) 0.5
volumes
Inlet Velocity 2.5
Inlet Flow Depth 6
Depth to Ground Water 11.5
Planting Soil Infiltration 0.52
In-Situ Soil Infiltration 1.02
REQUIRED DESIGN:
0.5 ft. depth
146 sq. ft.
ac
30.0 % impervious
sand underdrain
0 fps
in
6 ft
0.52 in/hr
0.00 in/hr
ok
ok
check veloci
ok
ok
Project No. DWQ Gardner Res
Project Name: 04-1896
SUBMITTED DESIGN: 1 REQUIRED DESIGN:
7/18/2005
elevations

Permanent Pool (ft) 109.5 0.5 ft. depth
Temporary Pool (ft) 110
areas
Permanent Pool SA (sq ft) 780 335 sq. ft.
Drainage Area (ac) 0.4 ac
Impervious Area (ac) 0.17 42.5 % impervious
Rational C 0.55
Precipitation (in) 0.5 sand underdrain
volumes
Inlet Velocity 3.2 0 fps
Inlet Flow Depth 6 in
Depth to Ground Water 9.5 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr
In-Situ Soil Infiltration 1,02 0.00 in/hr
ok
ok
check veloci
ok
ok

r.`
DWQ Project No.
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : 6,490 oc p , iZES i Dr N -r-
Contact Person: 14A20 L!J If EU-; , zy Phone Number: (cl I9) S'11-9197,
For projects with multiple basins, specify which basin this workshee t applies to: 3A5 1nl WiiE A Af- Z

Pool Elevation
_
it I ? :5'0
ft.
(elevation of the orifice invert out)
Temporary Pool Elevation it 2.0 ft. (elevation of the outlet structur
i
t i
e
nver
n)
Bioretention Surface Area 580 sq. ft.
Drainage Area 0.2.0 ac. (on-site and off-site drainage to the basin)
Impervious Area 0.06 ac. (on-site and off-site drainage to the basin)
Rational C Coefficient 0.48
Size % !6. 0 % (either 5% in w/sand under d
i
7%
ra
n or
in w/o)
Inlet Velocity 2.50 fps
Inlet flow depth b in
Depth to Ground Water i) .50 ft.
Planting Soil Infiltration Rate o. 5t in./hr. (the soil layer down to 4 feet)
In-Situ Soil Infiltration Rate i -0 Z in./hr. (the soil layer below 4 feet or bel
th
d b
ow
e san
ed)
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
HAY No vertical sand bed is proposed
The bioretention area is at least 40 feet by 15 feet
Sheet flow is is at inlet.
!+
Y Water table depth th is greater than 6 feet. n n
04Y Minimum of 6" ponding is provided. ?,` !1111)
1+41 The ponded area will draw down in less than 4 days. LIl!
N JUL 1 ? 20d5
AY Planting soil infiltration rate is greater than 0.52 in/hr.
14AV The in-situ soil infiltration rate is greater than 0.2 in/hr.
144Y A planting plan with species and densities is provided. - QUALITY
YVDEiLANDS AND SSANDTErt TORMWATERTER BRANCH
14A-Y Mulch layer is specified in plans.
13AY Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
NAY Plan details for the bioretention area provided.
P??L Plan details for the inlet and outlet are provided. W1,W
An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains

DWQ Project No.
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
Bioretention Surface Area -78 O sq. ft.
Drainage Area 0.+0 ac.
Impervious Area 0. V7 ac.
Rational C Coefficient O.5 SJ
Size %o %
Inlet Velocity 3. L fps
Inlet flow depth (o in
Depth to Ground Water Cf. 5 ft.
Planting Soil Infiltration Rate _ 0, 52, _ in./hr.
In-Situ Soil Infiltration Rate I e ®2_ in./hr
REQUIRED ITEMS CHECKLIST
1. PROJECT INFORMATION (please complete the following information):
Project Name : GARU?-'L1;9' RE $% DENCZ
Contact Person: RAWLwD VOLLE :a- Phone Number: (919 ) 8-17 ' 191?.
For projects with multiple basins, specify which basin this worksheet applies to: _ i6A5'i11 -0-1
BASE
Pauuaa®at hol Elevation i (3.Y . a ft. (elevation of the orifice invert out)
Temporary Pool Elevation 1 0 . D ft. (elevation of the outlet structure invert in)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(either 5%a in w/sand under drain or 7% in w/o)
(the soil layer down to 4 feet)
(the soil layer below 4 feet or below the sand bed)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
U c Gym is specs ?e m p ans.
14AY Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
1-?1}Y Plan details for the bioretention area provided.
14Pfy Plan details for the inlet and outlet are provided. ?? /A
An operation and maintenance agreement signed and notarized by the responsible party is provided.
HAY Water table depth is greater than 6 feet.
WAY Minimum of 6" ponding is provided. V LS V
j4 4Y The ponded area will draw down in less than 4 days.
1-H 4Y Planting soil infiltration rate is greater than 0.52 in/hr. JU L 1 8 2005
NAY The in-situ soil infiltration rate is greater than 0.2 in/hr.
144'`J A planting plan with species and densities is provided. DENR - WATER QUALITY
U q V M I h 1 'f d' I WETLANDS AND STORMWATER BRANCH
Applicants Initials
W AV No vertical sand bed is proposed
4AK The bioretention area is at least 40 feet by 15 feet.
l4AI Sheet flow is provided at inlet.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains
Letter of Transmittal
Aiken & Yelle Associates, PA
't T T ;Professional Engineers ?: Land Surveyors
c 1
3755 Benson Drive
Raleigh, North Carolina 27609
919-877-9992 Fax [phone]
e-mail: [e-mail]
To: Division of Water Quality Date: 07-12-05
Fed Ex Mail
T,Zo_.j, --/ ©4 -189 `,, (?2. . Hand Delivery X
Courier
Attn.: C i jj pY* e A 2Q L i Pick-Up
Subject: Gardner Residence
R [ 2 (_1611-71 IN odr -2-2, 0
DENR - WATER 4UAUTY
VOLANDS AtW STORMWATER BRANN
Included: 2 - copies Construction Drawings 24 x 36
1- copy of Bio-Retention Worksheet
1- copy of operation and maintenance agreement
Comments: Please contact Chris Clark with any questions.
V ?R-rT Co V `(
GARDNER RESIDENCE
BIO RETENTION AREA OPERATION AND MAINTENANCE AGREEMENT
As in the case of any stormwater BMP, maintenance of bioretention facilities is an import component that
ensures consistent performance and aesthetics.
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the Bio Retention Area for sediment accumulation, erosion, trash accumulation, vegetated cover,
and general condition.
1. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
2. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
3. All components of the Bio Retention Area shall be maintained in good working order.
Other element of maintenance include the following:
WEEDING
As with any garden, bioretention requires weeding of unwanted plant materials. Mulching helps to reduce weed
growth and retain moisture in the soil. Weeding should be accomplished routinely as required.
WATERING
If plants wilt during the heat of the day, but recover in the evening, watering is not necessary. The plants are
simply conserving moisture. If they do not recover, watering is indicated. Another good rule of thumb is to stick
a pencil or screwdriver about four inches into the soil. If the soil is moist at that depth, watering is not needed. If
the soil is dry, and the shrubs or trees were planted within the last three years, watering is necessary.
FERTILIZATION
In traditional, intensively cropped landscapes, soil fertility (and especially the level of available nitrogen) is
considered the limiting factor to plant growth. By design, however, bioretention facilities are located in areas
where nutrients (especially nitrogen) are significantly elevated above natural levels. Therefore, it is unlikely that
soil' fertility will be the limiting factor in plant growth, and thus fertilization would be unnecessary. Excess
fertilization, (besides compromising the facility's pollutant reduction effectiveness) leads to weak plant growth,
promotes disease and pest outbreaks, and inhibits soil life. If soil fertility is in doubt, a simple soil test can
resolve the question. If fertilization should become necessary, an organic fertilizer will provide nutrients as
needed without disrupting soil life.
MULCHING
The mulch materials placed in the facility will decompose and blend with the soil medium over time. Typically,
mulch material should be re-applied once every six months. The depth of the mulch layer should be no more
Page 1 of 3
Letter of Transmittal
Aiken & Yelle Associates, PA
AYES Professional Engineers & Land Surveyors
3755 Benson Drive
Raleigh, North Carolina 27609
919-877-9992 Fax [phone]
e-mail: [e-mail]
To: Division of Water Quality
Date: 07-12-05
Fed Ex Mail
o?,¢ 641 - /gQ( /.,(),e CJG Hand Delivery X
Courier
Attn.: C J hj p Y' e R 2O 1, t Pick-Up
Subject: Gardner Residence
R 12 P.213 p
1111 1 8 200
DENR - WATER QUALITY
WMANOS AND STO MWATER ®RANN
Included: 2 - copies Construction Drawings 24 x 36
1- copy of Bio-Retention Worksheet
1- copy of operation and maintenance agreement
Comments: Please contact Chris Clark with any questions.
V V,,Prr-T C- o PY
GARDNER RESIDENCE
BIO RETENTION AREA OPERATION AND MAINTENANCE AGREEMENT
As in the case of any stormwater BMP, maintenance of bioretention facilities is an import component that
ensures consistent performance and aesthetics.
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the Bio Retention Area for sediment accumulation, erosion, trash accumulation, vegetated cover,
and general condition.
1. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
2. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
3. All components of the Bio Retention Area shall be maintained in good working order.
Other element of maintenance include the following:
WEEDING
As with any garden, bioretention requires weeding of unwanted plant materials. Mulching helps to reduce weed
growth and retain moisture in the soil. Weeding should be accomplished routinely as required.
WATERING
If plants wilt during the heat of the day, but recover in the evening, watering is not necessary. The plants are
simply conserving moisture. If they do not recover, watering is indicated. Another good rule of thumb is to stick
a pencil or screwdriver about four inches into the soil. If the soil is moist at that depth, watering is not needed. If
the soil is dry, and the shrubs or trees were planted within the last three years, watering is necessary.
FERTILIZATION
In traditional, intensively cropped landscapes, soil fertility (and especially the level of available nitrogen) is
considered the limiting factor to plant growth. By design, however, bioretention facilities are located in areas
where nutrients (especially nitrogen) are significantly elevated above natural levels. Therefore, it is unlikely that
soil fertility will be the limiting factor in plant growth, and thus fertilization would be unnecessary. Excess
fertilization, (besides compromising the facility's pollutant reduction effectiveness) leads to weak plant growth,
promotes disease and pest outbreaks, and inhibits soil life. If soil fertility is in doubt, a simple soil test can
resolve the question. If fertilization should become necessary, an organic fertilizer will provide nutrients as
needed without disrupting soil life.
MULCHING
The mulch materials placed in the facility will decompose and blend with the soil medium over time. Typically,
mulch material should be re-applied once every six months. The depth of the mulch layer should be no more
Page 1 of 3
than °3". Mulch applied any deeper than three inches reduces proper oxygen and carbon dioxide cycling between
' the soil and the atmosphere, and keeps plant roots from making good contact with the soil. The mulch layer
provides an important role in the bioretention physical properties for removing heavy metals from the system.
DIVIDING & REPLANTING
The properly designed facility should thrive and allow planting materials to expand and propagate, eventually
becoming overcrowded. If this occurs, perennial plants should be divided in spring or fall. Plants that do not
perform well, or die, should also be replaced.
TRIMMING AND HARVESTING
Current practice is to leave ornamental grasses and perennial seed heads standing to provide winter interest,
wildlife forage, and homes for beneficial insects. Plants should not be cut back until spring when new growth
commences, and even then it is only done for neatness, it does not impact growth. Plants may be pinched,
pruned, sheared or deadheaded during the growing season to encourage more flowering, a bushier plant, or a
fresh set of leaves. Diseased or damaged plant parts should be pruned as they occur, and if a plant is pest-
infested, then perform cleanup in fall to deny the pest a winter home. Trees and shrubs may be pruned for shape
or to maximize fruit production.
STANDING WATER PROBLEMS
Bioretention facilities are designed to have water standing for up to four hours. If this period is routinely
exceeded, the facility may not be functioning properly. Should standing or pooling water become a maintenance
burden, minor corrective action can usually correct it. Clogging usually causes pooling water or blockage of
either the surface layer or fines obstructing the filter fabric (if used) used between the gravel bed/underdrain (if
used) and the surrounding planting soil. Removing the mulch layer and raking the surface may correct the
surface blockage problem. For blocked filter fabric, use lengths of small reinforcing bar (2'-3' #4 rebar) to
puncture the fabric with holes every 1' on center. If the soils themselves are causing the problem, punch holes in
the soil or optionally, install a "sand window" at least 1 foot wide running vertically to the underdrain system
elevation. In a worst-case scenario, the entire facility may need to be re-installed.
TRASH AND DEBRIS
Runoff flowing into bioretention facilities may carry trash and debris with it, particularly in commercial settings.
Trash and debris should be removed regularly both to ensure that inlets do not become blocked and to keep the
area from becoming unsightly.
PET WASTE
Pet waste should not be left to decay in bioretention facilities because of the danger of disease-causing
organisms.
Page 2 of 3
v
• r

I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name:
Title:
Address:
Phone:
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots
have been sold and a resident of the subdivision has been named the president.
I,
County of
, a Notary Public for the State of
do hereby certify that
personally appeared before me this day of , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
SEAL
My commission expires
Page 3 of 3
.
OF W ATFRQ Michael F. Easley, Governor
William G. Ross Jr., Secretary
y North Carolina Department of Environment and Natural Resources
> Alan W. Klimek, P. E. Director
p -? Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
January 10, 2005
DWQ Project No. 04-1896
Wake County
Page 1 of 2
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
David E. Gardner
102 Anna Lake Lane
Cary, NC 27513-3590
Subject Property: Gardner Property, Lot 1 Gallup Subdivision, 102 Anna Lake Lane, Cary, NC
PIN No. 0754976865, REED No. 0143458
UT to Crabtree Creek [03-04-02,27-33-(1), C NSW (nutrient sensitive water)]
MAJOR VARIANCE APPROVAL per the NEUSE RIVER RIPARIAN AREA PROTECTION RULE [15A NCAC
2B.0233(9)] w/ ADDITIONAL CONDITIONS
Dear Mr. Gardner:
On December 8, 2004, the Water Quality Committee (WQC) of the N.C. Environmental Management Commission
(EMC) decided to approve your Major Variance with the following conditions. This letter shall act as your Major
Variance approval as decided by the WQC and described within 15A NCAC 02B .0233(9)(c). In addition, you should
obtain or otherwise comply with any other required federal, state or local regulations before you proceed with your project
including (but not limited to) Erosion and Sediment Control and Non-Discharge regulations.
This approval is only valid for the purpose and design that you described in your Major Variance except as modified
below. If you change your project, you must notify us and you may be required to send us a new application and request a
new Major Variance approval through the WQC. If the property is sold, the new owner must be given a copy of this
approval and is thereby responsible for complying with all conditions. For this approval to be valid, you must follow the
conditions listed below.
Conditions:
1. Stormwater Management - A final, written stormwater management plan (including a signed and notarized
Operation and Maintenance Agreement) shall be approved in writing by this Office before the impacts
specified in this variance approval occur. The stormwater management plan must include worksheets, plans
and specifications for the bio-retention area / "rain garden" described conceptually within your variance
application and designed according to the most recent version of the NC DENR Stormwater Best
Management Practices Manual. These facilities must be designed to treat the runoff from the entire project,
unless otherwise explicitly approved by the Division of Water Quality. Also, before the renovation is
completed, the facilities (as approved by this Office) shall be constructed and operational, and the stormwater
management plan (as approved by this Office) shall be implemented. The structural stormwater practices as
approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
no n 7-11170A Ml.nnn\ C1 I O_74'2-LiAO'2 !foul hffn•//h9n - cinie nn ue/nr moflnnrie/
w ,
David E. Gardner
Page 2 of 2
January 10, 2005
structural stormwater practices shall be made without written authorization from the Division of Water
Quality.
2. Buffer Mitigation - You shall provide written assurances (in the form of a conservation easement, deed
notification or similar mechanism) that the retained buffer located on the subject property and around the lake
will be protected from future development. These assurances shall be provided to the DWQ before the
impacts specified in this variance approval occur. If these assurances can not be provided or are not
acceptable to the DWQ, then you shall make a payment into the Riparian Buffer Restoration Fund to mitigate
for the 495 square feet of new impervious surface as per 15A NCAC 02B .0242. The required area of
mitigation shall be equal to 1,485 square feet.
3. Certificate of Completion - Upon completion of all work approved within the 401 Water Quality Certification
or applicable Buffer Rules, and any subsequent modifications, the applicant is required to return the attached
certificate of completion to the 401/Wetlands Unit, North Carolina Division of Water Quality, 1650 Mail
Service Center, Raleigh, NC, 27699-1650.
If you do not accept any of the conditions of this Major Variance Approval, you may ask for the full EMC to review your
variance request. You must send us a request for this review in writing within 60 days of the date that you receive this
letter. If you do not accept any of the conditions of the full EMC review, you may ask for an adjudicatory hearing. To
ask for a hearing, send a written petition which conforms to Chapter 150B of the North Carolina General Statutes to the
Office of Administrative Hearings, PO Box 27447, Raleigh, N.C. 27611-7447. This Major Variance Approval and its
conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under the Neuse River Riparian Buffer Protection Rules
(15A NCAC 2B .0233). Please call Cyndi Karoly at [phone] if you have any questions or require copies of our
rules or procedural materials.
Sincerely,
Ala W. Klimek
Director, DWQ
Cc: Sean Clark, S&EC, Inc., 11010 Raven Ridge Road, Raleigh, NC 27614
Mike Horan, DWQ Raleigh Regional Office
File Copy
Central Files
DWQ 041896
January 10, 2005
CBK/bz

Consideration of a Request for a Major Variance
from the Neuse River Riparian Area Protection Rule
15A NCAC 02B.0233 0 a (0;:Z?k Q?? n
Q
D
Water Quality Committee Meeting NUV 2 9 2004
N.C. Environmental Management Commission DENR _ VVATER QUALITY
December 8 2004 WETLANDS AND STOFUmATER BRANCH

A request has been received for the Water Quality Committee to grant a variance from the Neuse
River Riparian Area Protection Requirements for a proposed renovation of an existing residential
home at 102 Anna Lake Lane, Cary, Wake County, North Carolina (see attached request). The
applicant, Mr. David E. Gardener, is proposing to renovate his existing home. The proposed
renovation would add approximately 495 square feet of new impervious surface within the
protected buffer where it did not previously exist. The existing house (constructed in the 1930's
and renovated in thq 170's) is immediately adjacent to and partially built over a small lake
located within thactreek watershed (C NSW). The applicant has proposed to use bio-
retention "rain gardens" to control stormwater associated with the proposed renovation including
retained portions of the existing home that are currently not being treated by an engineered
stormwater management device.
The Division of Water Quality has determined that Mr. Gardner's variance request meets all of
the requirements for granting a variance under 15A NCAC 213 .0233(9)(a) if the conditions listed
below are met.
Recommendation:
Division of Water Quality (DWQ) Staff recommend the approval of this variance request if
the conditions below are met.
1. The applicant shall obtain DWQ approval of a final stormwater management plan for
the bioretention / "rain garden" devise prior to impacting the buffer and install the
devise as per the approved plan.
2. The applicant shall provide assurances to the DWQ such that the retained buffer
located on the applicant's property and around the lake will be protected from future
development. If these assurances can not be provided or are not acceptable to the
DWQ, then the applicant shall make a payment into the Riparian Buffer Restoration
Fund to mitigate for the 495 square feet of new impervious surface as per 15A NCAC
02B .0242. The required area of mitigation shall be equal to 1,485 square feet.
z i
Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com
November 22, 2004
S&EC Project #9137.wl
NCDENR-DWQ
Attn: Mr. Bob Zarzecki
2321 Crabtree Boulevard
Suite 205
Raleigh, NC 27604
Reference: Major Variance Request
102 Anna Lake Lane Home Renovation/Addition
Cary, Wake County, North Carolina
Dear Mr. Zarzecki:
The purpose of this correspondence it to request a Major Variance from the Neuse River
Basin Maintenance of Riparian Areas rules on behalf of Mr. David Gardner (homeowner)
for the above referenced site.
You and Mr. Michael Horan of the NC-DWQ Raleigh Regional Office have met with Mr.
Gardener on two occasions on his property to discuss the project. On October 29, 2004,
you and I met to further discuss the project and to inform you of Mr. Gardner's intent to
request a Major Variance. You indicated that such devices as biodetention or rain gardens
should be utilized to treat and detain the stormwater runoff from the new and existing
impervious surfaces. Mr. Gardner has agreed to use such devices to treat the runoff from
the proposed impervious area as well as the existing structures. Although final plans for
such devices have not been completed, the attached footprint plan of the house shows the
approximate size and locations for the stormwater devices. A final stormwater design
will be submitted to your office for approval once it has been completed.
Page 1 of 4
1 ?
102 Anna Lake Lane November 22, 2004
Variance Request Letter S&EC Project #9137.w1
Project Location
The property is located at the intersection of Anna Lake Lane and Lake Drive
approximately 1750 feet northeast of the intersection of Lake Drive and Chapel Hill Road
(Hwy 54) in Cary, North Carolina. The attached USGS site vicinity map (Figure 1) and
the attached Wake County Soil Survey site vicinity map (Figure 2) depict the location of
the property. The total property is approximately 7.95 acres. The drainage area being
considered is 0.722 acre.
Existing Conditions
The original home was constructed in the 1930's, prior to the Neuse Buffer Rules, and
was renovated in the 1970's. The entire house is completely within the 50-foot riparian
buffer and a 1240 ft2 portion of the house extends over the lake. The garage is not within
the riparian buffers, however several gravel parking areas, concrete walkways/patios and
a concrete fishpond exist between the current house and the garage. Figure 3 shows the
current footprint of the existing home and the existing parking areas, driveways,
sidewalks, etc. and also includes the currently pervious areas as well. Photos of the
existing area including the driveway, garage, and house are attached.
Proposed Impacts
In essence the property owner wishes to connect the current home structure to the
existing garage. Figure 4 shows the footprint of the proposed structure. The proposed
increase in impervious surface within the riparian buffers (all of which is within Zone 1)
will total 495 ft2. The plan also proposes converting 122.6 ft2 of impervious area (gravel
parking pad) back to pervious cover so that the net loss of pervious area is only 372.4 ft2
(see Figure 4).
Permitting Requirements
This home renovation/addition will not result in any fill within jurisdictional waters
therefore no 401 or 404 permits will be required. The homeowner will require Town of
Cary approval and will be required to comply with their rules and regulations during
construction.
Need for Variance (Practical Difficulties, Hardship, and Uniqueness)
Because the house was constructed completely within the riparian buffers any addition
outside of the footprint on three of the four sides results in additional rooftop within the
50-foot buffer. The subject property contains a great deal of impervious as it currently
exists so to expand the house footprint in the desired direction would have a very
minimal effect in terms of impervious surface cover. For the property owner to expand
on the front of the house, a rerouting of the driveway would most likely be required in
order to use the garage in its current state. An addition to the back of the house is not
possible due to the house's close proximity to the pond. An addition to the northwest of
Page 2 of 4
T
102 Anna Lake Lane
Variance Request Letter
November 22, 2004
S&EC Project #9137.w1
the house (opposite side from the proposed addition) would impact currently pervious
areas and would not connect the house to the garage. By adding the desired square
footage in the proposed location, the smallest amount of impacts to pervious surface area
results.
Storm Water Treatment
As mentioned previously, the stormwater runoff from the proposed and existing house
will be routed and treated by rain gardens/biodetention areas. Due to the current planning
stage of the project the exact sizing and location of the devices has not yet been finalized,
however, preliminary areas are shown on Figure 4. Due to the negligible increase in the
impervious cover, only an extremely small increase in Total Nitrogen (TN) is expected.
Currently stormwater draining from the section of the driveway directly in front of the
house and the garage is directed to the impervious areas between the two structures and
directly into the lake. In addition to using rain gardens for stormwater from the rooftop,
the property owner will also divert the stormwater flow from the driveway to vegetated
areas that will add in insuring diffuse flow into the buffers. The exact location and
dimension for each of these treatment devices will be described in detail in the final
construction documents. .
Preservation of Intent and Water Quality Improvement
We offer the following comments with regard to the preservation of the intent of the
Neuse Riparian Area Rule and the overall water quality improvements associated with
this project:
1. The majority of the property is pervious and will remain as such. Other than a
small area of the property that drains into the drainage below the lake's dam, most
of the property drains into the lake. With exception to the area of impact being
requested, buffers will be preserved around the perimeter of the lake within Mr.
Gardner's property.
2. No jurisdictional features (i.e. wetlands or surface waters) will be directly
impacted due to the proposed activities. For this reason no 401 or 404 permits
will be required.
3. If the variance is approved, stormwater runoff from the proposed rooftop will be
treated as will the stormwater from the existing rooftops and surrounding
impervious areas. Although currently there is not a significant amount of nitrogen
input from this property and the proposed nitrogen input will also be extremely
minor, the proposed rain gardens will help decrease what little nitrogen input is
generated.
4. The property owner has already planted 100 trees on the property, some but not
all of which are within the 50-foot DWQ regulated riparian buffer. All of the
newly planted trees are within the 100-foot Town of Cary riparian buffers. If
buffer mitigation is required beyond this, a payment to the NC-EEP is proposed.
Page 3 of 4
102 Anna Lake Lane
Variance Request Letter
November 22, 2004
S&EC Project #9137.w1
As described above, Mr. Gardner has gone through the proper steps to insure that his
proposed home renovation/addition is in compliance with the current regulations. As
stated above the final plans for the exact size and location of the proposed stormwater
devices have not been determined due to the current status of the proposed
renovation/addition, however these plans will be completed at the appropriate time during
the planning stage and prior to site construction.
If you have any questions concerning this submittal, please do not hesitate to call us.
Sincerely,
Soil & Environmental Consultants, PA
Sean Clark
Environmental Scientist
Attachments: 1. Variance Request Form
2. Site Photos
3. Figure 1-USGS Site Vicinity Map
4. Figure 2-Wake County Soil Survey Site Vicinity Map
5. Figure 3-Existing Footprint within the buffer
6. Figure 4-Proposed Footprint within the buffer
7. Stormwater/Nitrogen Information
8. Figure 5-Enlarged USGS showing drainage area
9. Figure 6-Portion of survey showing drainage area
10. Overall survey of property.
Page 4 of 4
1
OFFICE USE ONLY: Date Received Request #
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
Variance Request Form
Neuse River Basin: Nutrient Sensitive Waters Management Strategy
Protection and Maintenance of Riparian Areas Rule 15A NCAC .0233
NOTE: This form may be photocopied for use as an original.
Part 1: General Information
1. Applicant's name (the corporation, individual, etc. who owns the project):
2. Print Owner/Signing Official (person legally responsible for the facility and its compliance)
Name: David E. Gardener
Title: Homeowner
Street address: 102 Anna Lake Lane
City, State, Zip: Cary. NC 27513
Telephone: (919) -244-3418 (Mobile)
Fax: [phone]
3. Project Name (Subdivision, facility, or establishment name - consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
102 Anna Lake Lane (single home site)
4. Location of Facility
Street address: 102 Anna Lake Lane
City, State, Zip: Cary. NC 27513
County: Wake
Latitude/longitude: 035148' 14.15"N 078°47"54.47"W
5. Directions to facility from nearest major intersection (Also attach a map):
The property is located at the intersection of Anna Lake Lane and Lake Drive approximately
1750 feet northeast of the intersection of Lake Drive and Chapel Hill Road (Hwy 54) in Cary,
North Carolina. The existing home and the location of the requested impacts is located on
the north side of the lake (see attached site vicinity maps)
6. Contact person who can answer questions about the facility:
Name: Sean Clark
Telephone: [phone]
Fax: [phone]
Email: sclark sandec.com
7. Requested Environmental Management Commission Hearing Date: December 8. 2004
Version 1: September 1998
Part 2: Demonstration of Need for a Variance
NOTE: The variance provision of the Neuse Riparian Area Rule allows the Environmental Management
Commission to grant a variance to an affected party when the following conditions apply on a given project:
(a) practical difficulties or hardships would result from strict application of the rule:
(b) such difficulties or hardships result from conditions which are peculiar to the property involved; and
(c) the general purpose and intent of the Rule would be preserved, water quality would be protected and
substantial justice would be done if the variance were granted.
This part of the application is to explain how the project meets criteria (a) and (b).
1. Attach a detailed description (2-3 pages) explaining the following:
• The practical difficulties or hardships that would result from strict application of the Rule.
• How these difficulties or hardships result from conditions that are unique to the property
involved.
• Why reconfiguring and/or reducing the built-upon area to preserve a greater portion of the
riparian area is not feasible on this project. If economic hardship is the major
consideration, then include a specific explanation of the economic hardship and the
proportion of the hardship to the entire value of the project.
Part 3: Water Quality Protection
NOTE: This part of the application is to explain how the project meets criterion (c): the general purpose and
intent of the Rule would be preserved, water quality would be protected and substantial justice would be done if
the variance were granted.
1. Briefly summarize how water quality will be protected on this project. Also attach a detailed
narrative (1-2 pages) describing the nonstructural and structural measures that will be used
for protecting water quality and reducing nitrogen inputs to surface water.
Currently stormwater generated from the site's impervious areas (i.e. rooftops concrete
pads, gravel parking areas, etc.) is not treated by a stormwater device although some of the
runoff is partially treated by the narrow tree-lined buffer along the lake The proposed addition
will treat both the existing and proposed stormwater runoff as per DWQ requirements through the
use of several rain gardens. These devices will meet the 85% TSS removal requirement and will
partially meet the nitrogen reduction requirements as well as.
2. What is the total project area in acres? 0.037 acre
3. Which of the following permits/approvals will be required for this project?
N/A CAMA Major
N/A Sediment/Erosion Control
N/A 401 Certification/404 Permit
Variance Request Form, page 2
Version 1: September 1998
Part 3: Water Quality Protection, continued
4. Complete the following information for each drainage basin. If there are more than two
drainage basins in the project, attach an additional sheet with the information for each basin
provided in the same format as below.
Project Information Drainage Basin 1 Drainage Basin 2
Receiving stream name Ut to Crabtree Creek
Receiving stream class' C; NSW
Drainage basin area (total) 31,450
Existing impervious area3 (total) 11,470 ft2
Proposed impervious area3 (total) 495 ft (Total = 11,965 f t2)
Impervious area3 (on-site) (post) 38%
Impervious area3 (total) (post) 38%
Impervious area3 Drainage basin 1 Drainage basin 2
On-site buildings (post) 7,190 ft2
On-site streets
On-site parking (post) *4,185 ft2
On-site sidewalks (post) 620 ft2
Other on-site
Total on-site 14;x635 ft2
Off-site
Total 14, 635 ft2
The internet site for this information is http://h2o.enr.state.nc.us/strmclass/alpha/neu.html
2 Total means on-site plus off-site area that drains through the project.
3 Impervious area is defined as the built-upon area including, but not limited to, buildings, parking areas,
sidewalks, gravel areas, etc.
* Number includes private gravel road and parking areas
5. How was the off-site impervious area listed above derived?
There was no off-site impervious surface area given because the drainage area was
assumed to be from the edge of the pond to the top of the ridgeline (or roughly the private
gravel drive) All the impervious surface areas provided are within the areas identified on
Figures 5 and 6 as "Drainage Area".
6. What will be the annual nitrogen load contributed by this site after development in pounds per
acre per year without structural BMPs (stormwater pond, wetland, infiltration basin, etc)?
Attach a detailed Ian for all proposed structural stormwater BMPs.
Drainage
basin Size of,
drainage
basin
ac Post-development
nitrogen loading rate
without BMPs4
Ibs/ac/ r BMP nitrogen
removal
efficiency'
% Final nitrogen
loading rate
(lbs/ac/yr) Final nitrogen
loading from
drainage basin
Ibs
9 0.722 ac 8.53 25% 6.40 4.62
2
3
4
5
Totals 0.722 ac 4.62
4 Attach calculations and references.
5 Attach calculations and references.
Variance Request Form, page 3
Version 1: September 1998
r s ,
Part 3: Water Quality Protection, continued
7. The applicable supplemental form(s) listed below must be attached for each BMP specified:
Form SWU-102 Wet Detention Basin Supplement
Form SWU-103 Infiltration Basin Supplement
Form SWU-105 Curb Outlet System Supplement
Form SWU-106 Off-Site System Supplement
Form SWU-107 Underground Infiltration Trench Supplement
Form SWU-109 Innovative BMPs Supplement
See Attached
Part 4: Submittal Checklist
A complete application submittal consists of the following components. Incomplete submittals
will be returned to the applicant. The complete variance request submittal must be received 90
days prior to the EMC meeting at which you wish the request to be heard. Initial below to
indicate that the n ecessary information has been provided.
Applicant's Item
Initials
Sc . Original and two copies of the Variance Request Form and the attachments
listed below.
Sc • A vicinity map of the project (see Part 1, Item 5)
SC • Narrative demonstration of the need for a variance (see Part 2)
SC • A detailed narrative description of stormwater treatment/management (see Part
SC 3, Item 1)
SC • Calculations supporting nitrogen loading estimates (see Part 3, Item 6)
• Calculations and references supporting nitrogen removal from proposed BMPs
Sc (see Part 3, Item 6)
• Location and details for all proposed structural stormwater BMPs (see Part 3,
SC Item 6)
• Three copies of the applicable Supplement Form(s) for each BMP and/or
Sc narrative for each innovative BMP (see Part 3, Item 7)
SC • Three copies of plans and specifications, including:
N/A 0 Development/Project name
Sc 0 Engineer and firm
SC 0 Legend and north arrow
N/A 0 Scale (1" = 100' or 1" = 50' is preferred)
SC 0 Revision number & date
SC 0 Mean high water line (if applicable)
SC 0 Dimensioned property/project boundary
Concept Design 0 Location map with named streets or NC State Road numbers
0 Original contours, proposed contours, spot elevations, finished floor
SC elevations
SC 0 Details of roads, parking, cul-de-sacs, sidewalks, and curb and gutter
SC
Concept Design 0 Footprint of any proposed buildings or other structures
0 Wetlands delineated, or a note on plans that none exist
Sc 0 Existing drainage (including off-site), drainage easements, pipe sizes, runoff
N/A calculations
Sc 0 Drainage basins delineated
0 Perennial and intermittent streams, ponds, lakes, rivers and estuaries
0 Location of forest vegetation along the streams, ponds, lakes, rivers and
estuaries
Variance Request Fo rm, page 4
Version 1: September 1998
FROM,:'PROVIDERLINK,_INC PHONE NO. : 9194652641 Nov. 22 2004 03:02PM P2
Part 5: Deed Restrictions
By your signature in Part 7 of Uhis application, you certify that all structural stormwater best
management practices required by this variance shall be located in recorded stormwater
easements, that the easemeniss will run with the land, that the easements cannot I)e changed or
deleted without concurrence fnem the State, and that the easements will be recorded prior to the
sale of any lot.
Part 6: Agent Authorization
If you wish to designate submittal authority to another individual or firm so that they may provide
information on your behalf, please complete this section:
Designated agent (individual or firm): Sean Clark (Soil &_.EWironmsntal Consultants, PA). ,.... _
Mailing address: 11010 Raven Ridoe Road
City, State, Zip- R I NQ 27-k314
-
Telephone: 919 &46.5g0o
-
Fax: 919 A,46-4401
Email: ^? SandEC com -
Part 7., Applicant's Certification
1, nAy i n CMAP D N>< (print or type name of person
listed in Part I, Item 2), certify teat the information included on this permit application form is
correct, that the project will be constructed in conformance with the approved plans and that the
deed restrictions in accordance with Part 5 of this form will be recorded with all required permit
conditions.
Signature:
Date:
Title:
variance Request Form, Page 5
version t: September 1998
View of +I-10' wide driveway as it passes over the lake
dam from the road
View of driveway from garage
View of house front from the garage
View of parking area from the side of the house

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parking are LAK
Gravel driveway
.s:
View of the garage taken from the house

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Project No. Figure 1 - USGS Map

Soil & Environmental Consultants
PA
,
Project Mgr.: Anna Lake Rd. 11010 Raven Ridge Rd.- Raleigh, NC 27614
SC Wake County
NC [phone] • [phone]
, Web Page: www.SandEC.com
Scale:
1" = 2,00- 1
11/22/04 Cary Quadrangle

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Project No.
Figure 2 - Soil Survey Map
9137.W1
Soil & Environmental Consultants, PA
Project Mgr.: Anna Lake Rd. 11010 Raven Ridge Rd.- Raleigh, NC 27614
Sc Wake County, NC [phone] - [phone]
Web Page: www.SandEC.com
Scale:
V = 1,320'
11/08/04 Wake County Soil Survey
I
CO
LLI
Ir
U-
Foot Print of Current House and Impervious Surfaces
102 ANNA LAKE LANE- ZONE 182 FOOTPRINT
s0.-----
30'
Water line
476 sq R
319 sq ft
o
CCS CY3
o T
31.6'
An Additional 1240 sq ft
ImpeNous Over Water
K;l Impervious ¦ Pervious
V-A
Foot Print With' Proposed Renovation
102 ANNA LAKE LANE. ZONE 1&2 FOOTPRINT
50'
Converted to Pervious
122.6 sq ft
LJJ
rr
D
C)
H
30'
Water Line
j 31.8'
An Additional 1240 sq ft
ImPONOUS Over Water
Impervious Pervious
495 sq ft area converted to Impervious
122.6 sq ft area converted to Pervious
Scale
1:30
PRELIMINARY DESIGN CALCULATIONS
WAKE COUNTY, NORTH CAROLINA
Prepared for:
Mr. David E. Gardner
102 Anna Lake Lane
Cary, NC 27513
November 22, 2004
S&EC Project No. 9137.W1
STORM WATER
BIORETENTION AREAS
Patrick K. Smi , P.E. -
NC License No. 25525
00tisif to I fill
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Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com
Soil & Environmental Consultants, PA S&EC Project No. 9137.W 1
102 Anna Lake Lane Residential Expansion November 22, 2004
Storm Water Treatment
The treatment of storm water runoff is required as part of the permitting requirements for
impacts to the existing buffers associate with the proposed residential expansion. The
concept plan calls for the construction of one or more Bioretention Areas to be located on
the property adjacent to the existing residence (and proposed residential expansion). This
bioretention area will serve to treat storm water runoff associated with both the existing
and proposed impervious area including roof, road, and parking areas.
Our preliminary evaluation of this feature has included device sizing for the removal of
both Total Suspended Solids (TSS) and Total Nitrogen (TN) in accordance with generally
accepted practice as outlined in the North Carolina Department of Environment and
Natural Resources (NCDENR), Division of Water Quality (DWQ), Best Management
Practices (BMP) Manual.
Total Suspended Solids (TSS) Removal
The BMP manual outlines design requirements necessary to meet the pollutant removal
design standard of 85 percent removal of Total Suspended Solids (TSS). Based on the
BMP manual, a bioretention area is assumed to have a TSS removal efficiency of 85
percent. Sized appropriately one or more bioretention areas will meet the removal
requirements for the residence and the proposed expansion.
Total Nitrogen (TN) Removal
Based on the project location within the Neuse River Basin, the parcel must also be
evaluated for its contribution of Total Nitrogen (TN) being delivered to the receiving
watercourse (an unnamed tributary of Crabtree Creek). Constructed properly,
bioretention areas contribute significantly to the removal of TN. According to the Neuse
River Basin: Model Stormwater Program for Nitrogen Control, dated August 30, 1999,
bioretention areas are currently considered to remove 25 percent of the TN from storm
water inflow.
As described in the cited program literature, for commercial and residential development,
the rules require that nitrogen export of 3.6 pounds per acre per year (lbs/ac/yr) or less be
achieved. In the case where proposed commercial development results in TN export rates
less than 10.0 lbs/ac/yr, then the owner may either;
1) Install BMPs to remove enough nitrogen to bring the development down to 3.6
lbs/ac/yr, or
2) Pay a one-time offset payment (to the NC Wetlands Restoration Program, WRP)
of $330/lb to bring the nitrogen down to 3.6 lbs/ac/yr, or
1 of 2
Soil & Environmental Consultants, PA
102 Anna Lake Lane Residential Expansion
S&EC Project No. 9137.W l
November 22, 2004
3) Do a combination of BMPs and offset payment to achieve the 3.6 lbs/ac/yr
exports.
If a particular development has a computed export rate greater than 10.0 lbs/ac/yr, then
the owner must use on-site BMPs to bring the development's export down to 10.0
lbs/ac/yr. Then, the owner may use one of the three options described above to achieve
the nitrogen reduction between 10.0 lbs/ac/yr and 3.61bs/ac/yr.
Based on our discussion with the Division of Water Quality, we understand that once
treated for TSS and TN removal, storm water from a bioretention area can be discharged
directly into the receiving watercourse (in this case Lake Anna). This discharge must be
made in a non-erosive fashion.
Bioretention Area Planning & Design
Preliminary calculations for the sizing of the total footprint of a bioretention area have
been performed. All necessary preliminary storm water design calculations and
supporting documentation are attached.
From available topographic data (USGS Quadrangle Sheet) and site observation, the total
drainage area is estimated at 31,450 square feet or approximately 0.722 acres.
Considering a distribution of the site land usage between impervious area, maintained
lawn, and forested areas, we estimated a weighted Rational Coefficient of 0.50. Using
the methods described in the BMP Manual we determined required bioretention surface
area of approximately 1,100 square feet was needed to treat site runoff (assuming 7% - no
sand bed). This area can be separated into one or more specific treatment areas if
appropriate. Minimum length, width, and length to width ratios (and other sizing criteria)
as described in the BMP manual will be met or exceeded.
Detailed design of the bioretention area(s) to include but not limited to treatment soil
characteristics, plant species, ponding depth, outlet structure sizing, and feature
elevations will be determined during Final Design. The exact location and dimension for
the bioretention area will be described in detail in the final construction documents. For
planning purposes we have recommended that the Owner consider a total construction
area of 1.5 times the design surface area footprint required for the proposed bioretention
area (or roughly 1,650 square feet). These areas will be integrated into the site
landscaping plan to provide the desired appearance. We have attached the required DWQ
Worksheet and TN Export calculations (spreadsheet) for the proposed bioretention area.
Once approval of this concept plan is received and the buffer variance is granted detailed
Construction Drawings and Technical Specifications will be prepared. An Operations
and Maintenance (O&M) Agreement will also be prepared at this time.
2 of 2
JOB NO. ?? . L?
Soil & Environmental Consultants, PA SHEET OF L
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone] DATE /ZZ
www.SandEC.com
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Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
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Nitrogen Export Rate Calculations:
Joel NO. s?EET - 3 of y
DATE // -1 a `t'
BY_.
Method 2
Quantifying TN Export from Residential / Industrial / Commercial Developments
when Footprint of all Impervious Surfaces are Shown
Calculation Steps:
Step 1 Determine area for each type of land use and enter in 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 by dividing the total TN export from uses at the
bottom of Column (4) by the total area at the bottom of Column (2).
Column #
(1) (2) (3) (4)
Type of Area TN Export TN Export
Land Cover (acres) Coeff. from Use
lbs./ac./ lbs./ .
Peranently Protected Undisturbed 0.345>> 0.60 0.21
Open Space (forest, unmown meadow)
Permanently Protected Managed 0.102 1.20 0.12
Open Space (grass, landscaping, etc.)
Impervious Surfaces (roads, parking, 0.275 21.20 5.83
lots, driveways, roofs, paved storage
areas, etc.)
TOTAL 0.722 6.16
Total Nitrogen Export Coefficient = 8:53
NOTE: If TN export rate is greater than 10.0 lbs./ac./Yr. then a BMP must be installed
to remove enough Nitrogen to bring the TN export rate below 3.6 lbs./ac./yr.
w / h13 rt yeti 7 ibH t3reu ?s) TN IZQWalV4l ?-&fJIr ZS
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DWQ Protect No.
DMSION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
L PROJECT INFORMA (please the owing intimation):
Project Name :
Rqi
Contact Person: Phone Number f `/? 91
- 7nb
for protects with mult* bash specify which basin this waksheet applies b:
Permanent Pod Elevation
Temporary Pool Elevation
Bioretention Surface Area
Drainage Area
kq vWs Area
Rational C Coefficient
Sae %
khlet Velocity
.knletflow depth
Depth to Ground Water
Planting Soil Infiltration Rate
In-Srbu Sal Infiltration Rate
TAD R (elevalim of the orifice invert out)
rA tt (*vadon of the outlet *ucbxe invert in)
/j/DD sq.R
7Z?- ac. (on-Ae and of -ske drainage io the basin) :S), 145-D
SD Z
D, 2'7 ae. ( on. . e off-site dra' to the basin)
Lwc,s /2.t.fiP#jc r, >
% (either 5% in wfsand under drain or 7% in wfo)
T&D f
7BD in
7-8 D tt
7-A R in l hr: (the sod layer down to 4 feet)
?BD in.lhr. (the sod layer below 4 feet or below the sand bed)
1. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the Mowing design requuerments have been met and supporting documentation is attached. If a
teWWmed has not been met: atfadr an e*bmfion of why. At a minkm m, a cor>plete storrnwater management plan submittal _ includes
a woksheet for each BMP, design calahlaGons, plans and specifications showing as BMPs and outlet structure details, a detailed
drainage plan and a.fully executed operation and maintenance agreement An incomplete submittal padcage will result in a request for
Wdonaf information and will substantially delay final review and approval of the projed
77`7J No vertical sand bed is proposed
The biorhtention area Is at least 40 fed by 15 feet
Sheet Ilowis provided at inlet.
Water table depth is greater than 6 feet.
Mmihxmh of 6- pondiog is provided.
The ponded area WN draw dorm in less than 4 days.
Planting sail infiltration rate is greater than 0.52 Mr.
The V sb sod infiltration rata is greater than 0.2 h1r.
A planting plan wdh species and densities is provided.
Mulch layer is specified in plans.
Planting son meets minimum son specifications (NCDW Sbrmwater Best Management
Practices Manual; April 1999)
Plan details for ahe bioretention area provided.
Plan details for the inlet and outlet are provided.
An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in ft Piedmont and Mountains
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J CARR. PEtER 8 ANNA
~ 2Q PIN O7sa-0e-0aa ~ aooK nsoes PAGE z>>5 LEGEND
i / r1 / ~ ' 1 LONE R40
COMAUTED P(]INT
~ ; . ~ , _a~il~, j 7c. lr ~ ~lti ' ' ~ ~ ~ IRON PIPE SET ' M~1
115 ~ ~ ~ TING IRCJN PIPE EXIS
:B~e ® TR T ADDRESS U1 w xxxx S EE - ~ ~ FBI
~ \ ^ \ 116 \ ~ ~ PP POWER POLE ~i
/ ~ ~ ~ ~ ~ A; _ - ~~n ~ - V \ LP LIGHT POLE W ~ ~ - - VERHEAD ELECTRIC LINES ~ E o W
~ i ~ r i' 111N PINE ~ ~ ~ , PINE ~ -T- OVERHEAD tELEPHDNE LINES
-x- FENCE
~ ~ ~ ~ i - R INE C K W CENTS L ~
TOP GRATE \ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o,^ 100.44 ~ ~ ~ ~ rp ~ ~ , J Ex'ISTING ~ ~ . WV WATER VALVE H ~ ~ ~ / ~ ~ ~ FH FIRE HYL'RANT M M
~ _ ~ ` ~ ~ ~f ~ ~ DRIVEWAY - J ~ ~ ~ R ~ ~ ~ / ~ CG ~~NI T AR'r` S~ ~~t~~ (;LEAN [BUT ~ _
~ ~ ~ ~ fwd ~ ~ - 1. ~ MN SHN~TAR f ,,~w~ R M`ANHOLF_... ~ ` p
~ / 9 ~ , , ~ l ga agE ara e ~ ~ i ~ A g 9 ~ G.~
. - \ / / EXISTING _ , - , EXISTING GARAGES ~
~ ~ i ~ _ ,~S TO BE RED . ~ \ TO BE REMOVED ~ ~ ' TE= ONLY UTILITIES WITH VI~3dHLE EaI~NGE LOCATED, ~ ~ - O
~ f J ~ ~ ~ . - / . . APPROXIMATE d ' ' - Rf~ROUND UTILITY LINES SH4WN ARE w ~ ~ ~ ~ A EXTENT IS ESTIMATED ~ Mb4Y BE INLETS. -
~ \ ~ ~ _ ~ - ~ ~ EX . ATION MAY BE REQUIRED TD VERIFY LOCATIONS,
~ \ / ~ 3E1IN ~ l~. QT UNDERGROUND UTILITIES MAY EXIST, CALL ONE CALL
~S ~ ' ~ f ~ ~ : \ _ _ ~ CENTE'it AT 1-B00-632-4949 BEFORE DIGGING.
~ ~ ~ 7 OAK ~ AK
100,00' ` ~ q:., ~ ~ ~ ~ ~ ~ _ 1 ~ ~ ~ ~ ~ well ~ _ TOP ~F WATER ~ ~ \ . \ A'. *e ~
AT LAKE f ~ ~ ~ _
~ ~ r
EXISTING RESIDENCE 2nd Stor ~ . ~ ~ - _ NDTE~ STREAM IS INTERMITTENT BLUE LaNE
TO BE REMOVED ~ onl ~ ~ ` Q. y oo ; ti _ , ~ ~ ~ ~ _ ~ DN USGS MAP, MAY DR MAY NOT REQUIRE BUFFER.
~ 0 / ~ ~ ,
r0' ~ ~ ~ ` _
R ~ ~ _ ` ~ SILVtR GROvE D ~ / 0 , T ~ REFERENCES .r - ~ B,M, 1998 PG. X28?
v' / I ~ ~ -
~ ti \
/ ;~k / ~ _ _
~P'~F" / ~ ~ ~ i _ ~ Y~fJFGRMATi(JN IS DUPLICATED FROM INFORMATION; .;~~.:w ter, ~ SURVE I ,TY- - - - ~~_„_,_J ~ D$TAINf+D FR~'M Mr~~'~JLDIN-WATK;NS SURVEYING, PA. AYES
~ i , 'Q
`S v~ _ ~ , ~ AYES.. .TAKES ND RESPONSIBILT~ FaR ACCURACY iJF V- - - _ ~ " ' - - INFORMATIE~N SH(]WN N N, r.y
,7. EXIST. POND - , a
< ; NORMAL POOD ELEVATION o
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_ ABLE ~ ; _ _ - SITE DATA T
• -
_ - - - _ EXISTING USE: SINGLE FAMILY
_ _ _ _
_ _ - - - - - _ - R OF RECORD: GARDNER, DAVID E & _ _ OWNE - CHERYL C x
- . _ _ - - _ _ 102 ANNA LAKE LN
r - ' ~ _ GRF GRAVEL DRIVE _ _ _ _ _ _ CARP, NC 27513 '
_ - - _ - NTY 0754-97-6865 WAKE COU PIN
DEED 800K: 08604 r ~
" ~ - DEED PAGE: 2657 } ,
_ _ - - ~+~~~i0" / ZO y ° p ~ NING: R-40
~ ~,J ~ i - OD i
, _ ~ 1 102 ANNA LAKE LN a}i ADDRESS• 8 r~
~ f? - 13' -F." CARY, NC 27513 t ~~-w
i ~ . ~ AREA OF TRACT: 7.95 AC
~ ~ ~
J t ~ ~ '1 i ~ --w--. a _ PROPOSED BUILDING _ ;OO~~E' =,R~A ~
i SINGLE FAMILY RESIDENCE
~ ~ x ~ ~ fi?v(~ ,rr~ ~ D AREA i F UNITS: 1 ~ ~ NUMBER 0
I
PROPOSED BUILDING FOOTPRINT: 1 k
~ 1~-~ ~ ~ ~ I RESIDENCE do GARAGE AREA: 7,280 SF
VEHICULAR SURFACE AREA: 2,224 SF ~ 4 SF
/ a2' R- l ~ ~ i Propenyoe TOTAL IMPERVIOUS SURFACE: 9,50 ~'ARR, PETER 8 ANNA
/ ~ A i ~ PAN o~sa-~a-ooaa N ED AR A: 0.46 AC DE UD E
a ~---15' R 1, ~ ~ BOOK 09p55 PAGE 2115 zoNE Rao DWO PROJECT NUMBER 04-1896
~ 310 r?E'f_iJ1"ION «ReA~ ; ~l ~ ~ I N 102
i 780 Sf - - _ , GARDNER PROPERTY, LOT 1 GALLUP SUBDIVtS 0 , ~ ~ ANNA LAKE LANE, CARY,NC
~ iG• ~ ~ PIN N0. 0754976865, REID N0. 0143458
~s i ~ ~~.,._F" ` 10G UT TO CRABTREE CREEK [03-04-02, 27-33-(1), C NSW
St a ~ ~ ~ (NUTRIENT SENSITIVE WATER)]
'1 ~ 36
\ i . ~ / I 'C I
~Ff ~ - 1
~ a I ~ ~qR G > ,i qR Q ~ I
~ T R A ' ~ ~ n~ • OP G TE
~ 100.44 J NA GREEN 24' 8"
P300 EROSION I
TROL M'~~3' -4' 3 (w 5 (I) ~ RA CONSTRUCTION NOTES GENE l >
- 1>I} THE SACK OF EDGE OF PAVEMENT, w 1. ALL OIr~1~.QNS SH011N~1 AflQ
ON THE •.Pt,ANS. CONTACT THIS FIRM IJaLESS ,
. / F+OR A .FOR ' SIG id1'S AND ~IN.ONdC : ~ , ~
. ,
~ B6'-4' ! ~ i . DETAILS. Of AHt~AD S~
i ; 11NG SHALL ~ DESiON~) TO PREVENT ~ ~ 3. ALL EXTt UOM
i -~___---"-r- OFF-SITE GLAI1~, _ ~ s - J ~._~,,?,f NGINEER In SECURE ~ - 4. IT IS TfiE RE9PONSIf~litt OF THE OWNt~i/1E
A NA NA GREEN THE FDLLOIIpRG PI?fiMIT. 'THE TOWN OF CARP GRADWG pERMCT AND ;<<
\ F 00 Pte' .F ~ 0 CON P300 EROSION OTHER PERki1TS THE PROJECT MAY- REQURE, ~ 0 CON1T20L MAT ~
pR F~k 3.(w OAQ p F ~ - 5. A CERIIFlCATE OF INSURANCE TO VERIFY WORKERS RSA Ck 3 x5'(I) P LANCE VERIFICATION FORM Q /J <a COMPENSATION INSURANCE AND A COM L
SF~ SFO ~ ~ MUST BE COMPLETED BEFORE AN ENIARONMENTAL PERMIT ,WILL BE
~2 ; ISSUED.
' 6. THiS RROJECT MAY REQUIRE A PRE CONSTRUCTION CONFERENCE 8~0-RETEN110N AREA BEFORE AN ENVIRONMENTAL PERMIT IS ISSUED
580 SF 1. T L ATE ALL UTIUIt£S PRIOR TO THE 7. THE CONTACC OR SHALL OC
~2I'-a" ~ ~ NT GRADING ACTIVITIES. CONTACT ULOCO AT COMMENCEME
'z~~' 1- 632-4949 FOR FIELD LOCAIIO~N OF UNDERGROUND UTIL111ES. SOD- F 8. ALL PAVEMENT SHALL BE 2" h2 dt A8C STONE FOR DRIVE WAY '
~ r' PRUPOSEO KEYSTON i R 4' P1H OF 3000 PSI CONCRETE. SPECIFICATIOIJS 8Y OWNER
~ / / ~ RE7~AINING WALL... SYSTE ~ O ~ R TOP ~ ° 9. UNLESS OTHERWISE NOTED, ALL SPOT ELEVATIONS A E
~ ASPHALT OR FINISH SU TURAI AND STRUCTURAL PLANS FOR BUILDING 10. SEE ARCMITEC
~ , DIMENSIONS AND FEATURES.
11. SEE PLUMBING PLANS FOR LOCATION AND SIZE OF R0~
i DRAINS, WATER LINES AND SEWER LINES. ~ , 12. SEWER LATERALS SMALL BE PLACER AT A MINIMUM SLt~E OF 1
' N 0.6X ON "DIES. CLEANOUTS SHALL 8E X ON 4 LINES A D 8 ~
EXIST. POND NORMiW. POOD ELEVATION 5 ON 4" LINES AND 100' ON PLACED AT A MAXIMUM SPAGNG OF 7 NIP t 6" LINES. ~
100.!0'
NIP j'~~ 1 O'gtr
w z r HESS EASE 0 ~ MEN7 U , AKE
0 w EAR LOt 5 ~
J a GA 1~ ~ w
i 0; "'~cSS p`;~'y • A ,
w a r . "9' ~ ~ : Er.~
F+ 1
0 0 • Q Z4~if W
N 810-RETENTION AREA CALCUCA ION d~ yz ; r • ~
N ~ AREA ~2 oy ~ do o ~ REA ~2 ~
~ AREA ~1 0 1 ~
N c>~' 2,641 SF
IMP AREA 7,300 SF IMP AREA P W ~ ~
~ ~ 4,391 SF 1uo
GRASS AREA 5,800 SF GRASS AREA A U
~ WOODS AREA 4,400 SF WOODS AREA t~ 1,700 SF
~ TOTAL DRAINAGE AREA 17,500 SF TOTAL DRAINAGE AREA 8,732 SF ~ Q
Cc= 0.95 IMP +0.30 GRASS +0.20(WOODS))/17,500= 0.55 Cc=(0.95(tMP}+0.30(GRASS)+0.2 W001 ~ ( { ) ( ) WOODS 8 732 SF = 0.48 ~S)+0.20( ,
~ = 8,732 OA5 x Cc = 209 SF ( )
REQUIRED SURFACE AREA = 17,500 (0.05) x Cc = 47$ SF REQUIRED SURFACE AREA = 8,732 m GRAPHIC SCALE
SURFACE AREA PROVIDED = 7$0 SF SURFACE AREA PROVIDED ~ 5$0 f, 580 SF ZO 0 10 90 p
_ ~ i i I _ ~
= 1.60 CfS Q10= 0.48 x 7.22 x (8,732/43,560) c Q10= 0.55 x 7.22 x (17,500/43,560) ]32/43,560) = .69 CFS
POND VOLUME = 36 + 780)/2 0.5 = 329 CF POND VOLUME _ (350 + 580)/2 ' 0. (5 i CD. 580)/2 0.5 = 233 CF ¦ I inch 80 R.
G C"
SHEET 2 OF 4
Y m O
m
O

,a
CONSTIR1CTIp1 9EQUk~E -
1. OBiM11011M CF' CARP - "NOTE; A TTf13N MIM1 ~ TO ISSUANCE -
_ _ OF PElblf~;
~ _ . _ 1E: .M~CTIO~t FENCNC MIST BE ~ PN!!R TD ~ OF -

_ - _ _ - _ _ _ _ _ - 2. INSTALL h1~QRARY ptAVEL 111TCI1ES, StT p - _ FENCE,TIOE A11b BA6N19 Pllt TfiE 909. - ~
- _ - EROSION A1I>~ ATIp1 QONTtt01 Py,Aili' ~rr1
RIVE GRAVEL D _ - 1. 3. CALL 1H~ TOIAV Olt GARY O _ - - - - ~ AT ~1p-1043 i~OR AN
ONSITE MlPEC110N PRIOR TO A~AMTY. ~
~ i 4. OBTAMi A CE1~11fIC111E OF a p
- ww b. BEtO'1 p 0 AND Pit., APPRDIIED PUW, MANh'AIN ~
_~IIIILII I \ ALL 1iF.A1U1*S 118 IIEQUIRfO 10 Tit GPERATiON, ."".r
c ~ ~ \ , 8. INSTAL ~ tel: trATER. »•AiO !I wLETS
~ ~ ~ 7/7 \ ~ , tY1tH SR,T.„ ~~IItVEL FiLT~ 11t19'S 011 t~11pt APPIlONiti [MEASURES AS PLAl19, MtSTALL ~ .11~ DI"STG~ PiPF
THAT Do Ndr'oa.ArcY wrrN TME LacATloll aF mE 9BDbi~11 ~ cAtl~t
~ ~ BAS91 ItOq! ! !
i ~ f ~ i `1 \ ' 7. GRID a AAE'.tp K ~ rrttE? ~ , COYER To DAPS AR 30 t~IlY9, i
' ? Ep 't-Xl$~1Nv ~IOUG AREA NkNC1fEV1'R Ault . ~ : s wu~E OF ALL ARIAS ~ p A ~ UPON wwat ~ Arr aE ARE iq
E~iISTING '~d~)UDED~ AREA r ~ ~ ~ ~p ~ P ~ -~@ ~YS TtpS
~ i" ~ ' ~ ~ ~ ~ ..._117 ,i \ INCxuogt 1N!" Tcr' tocAl~pD tioT r oN
\ 1M1FeF1 -,1!!" DAYS, iE0 PREPJMtAT1(N1 AIb \ :I~It'~11PE sTAeMJb11~1N MEASURES,
I I / , ~ ~ i ~ A$ tXfNSTtUlCifgl~. NM~fAti: PE1pAANENT ER0610N:
l ~ ~ 0 I ( ~ i / MEA.l1~ ~ SUCH AS R1P RA!P ANIONS QbTY ~91PA1ERS. CHANiOL LINERS Atlf~ ORAVEI.
~ i. YMEN COiIS11d?C11CM1 Ili C~TE AND ALL ARC ARE. STA9~E0 CALL FOR Property or ONSITE ItISPECTION ~ ;lTAtiON CON1RCl NI~?CTC)R.
/ ~ - ~ ~ ~2 ~ rat % - i~ p CARR. PE fER R ,NNA , PIN U76A-U8 ik144 1O. IF (S
i 3,o-a~ T~tvrioN aaEa i ~ r 1 ~ ~ ~ ~ 911E REMOVE TEwIPOtY DIYER910M OiiQfES, ~T FENCE, E3OOK 09U5S PAGE; 2115 ~ ~
t 51'CIIMt'$RUC1Eif~ l~,Alllb END ZONE R40 SECTiONif A}S'! Rp t1~A1ER PADS. TFON 9EE0, PAYE OR RO+I~P 4
~ ~-l~11 ~I I I I l 1 - ~ ~ ~~l ~ , RESULTMID Ok41tJi~ 'AREAS.
~ \ _ ~ ~~a ~ ~ ~ C~[, ~ it. WFIEN YE~TA111R1 15 ESTAI CALL. FOR FNMAI, Sf1E il1910GTiON, IF THE
, \ OTE IS , APPROVED THE. PERFORMANCE etIMD, ~ ice, MMl 8E RELEASED
- ~ f~Z S ~ A ` ~ ~ ~ ~ ~ } b 106 a \ ~ ~
p o ~ ~ ~ ~ \ ~ \ `
i~ ; \ ~ - - _ ~ ~ P i~ ~ \ ! SEEDING SCHEDULE/SPECIFICA110NS - o}a ~ - \ ~ ~ a. a
'h - ~ 7 ~ ~ , W _ r, PLANT1NG~f A, 1E = W - M
TOP GRATE V ~Tj ~ ff ~ 100.44 ~ ~ ~ I e ka . ~ ! i Au 15-Nov t T I F ~ W 9 d escue .120 lbs./ocra ~ ~ >
~ - ' 1 C~ i _ Nov 1-Mar 1 Tdl Fescue 120 lbs./acre ~ y
~ ~ ~ NA GREEN ~6 ~ P300 EROSION ~ ' ~ ~ ~ r J+ dt Abruzzi Rye 25 Iba. /sae Mar 1-Apr 15 Tdi fescue 120 iba./acre
~p ~ i CONTROL MAT f _ _ Hulled Common Bermudo Grote 12 iba. acre
~ x 3'(w) x5'(I) 1 i~ ff 1~ t16 It= ~ / t_ ~ - Jul 1-Aug 15 Toq Feewe and 60 lbs. acre I- /
~ ~ ~ p4 ~ - ~ ~ _ Apr 15-Jun 30 Browntop Millet 35 Iba./sae - ~"or Sorgum-Sudan Hybird~ 30 lbs. acre
~ .S st ~ r ~ ~ by flr
se ~ , ~ tit~~rr _ ~ _ jay Reseed according ko optin>vm season for desired
~ ~e ~ ~ ~ ~ t peYmanent vegetotlon. Do not allow Temporary cover to grow over
\ ~ ~x ~0 ~ ~ - 12 in height before mowing, otherwise fescue may be shoded out, ~
~ ~ ~ - a i~~_.,
~ i~ W
~ NA GREEN ~,r; SEEDBED PREPERATION ' k MCI V . ~ _
~ ~ P30O: EROSION F ~ ~ F CONTROL MAT 1 1 i, Chisel c cted ar and rod to it Q k? ~ ompa eas ~ e pso 3 Inohse d over odver~ soil
f ~'R - ~ 3' w x5' I f~ ~p O O 5 ~ - conditions, if owAtable, ~ M W • ~ - - 2. Rip entire areo t4 6 inches depth.
j~ 0~~. ~~1. 5 ~ f"' f 3. Remove all iooee rock, roots, and other obstructlona leovin surface g
S reolenably smooth and uniform.
~ ~2 4. Apply. agriculturd lime, fsrtGizsr, and x,perphosphote uniform) and mix N - . Y W ~ 1~-R~~1TOF~'~.,, with soil (ses below Q
~ . 5. Continue. tEloge until swell-pulverf:ed, firm, reosanabi uniform seedbed A _ _ 584.. ~r Y
~ pr~ared 4 to 6 inches deep: fi.
_ . ~ i ~ ~ Seed on a freshly prepared seedbed and cover seed 1 htl with aeedin _ r 14 Y 9 ~ equipment a cultipock otter uetNng. T~
\ \ ~i~ Y- ry i? _ _ _ 7. Mulch immediate) after and. atchor mules V . _ _ pRflPt~SEU -K€Y5 f l)N y seedk?g ,
~ I I i? - _ 8. Inspect dl Meld areaR and make. necessary repairs or reseedmgr within the 1 F RETAINING WALL SYST antln s ~ . If stand should b _ _ PI 9. easo~ a over 80lG damaged ~ M
\ t ~ Vim.., ~ ~ ~R ~(3UAt - _ - - rhah ~ origind lime, fertilizer and eee<fing rotes.
j ` 9. Gault Conservation inspector on maintenonca treatment and fertEizotion A - - "1 ~ ` / offer permanent cover la establi~ed. Q~
~ ~ 'Apply: Agrir~lturol Umptone - 2 tons acre 3 tans acre in cl sous W - _ _ _ _ J / ( / aY
EXIST. POND ~ ~ ~ ~ - ~ ~ ~ FertNiiet - 1000 Iba./oars - 10-t0-10 ~ ~ - _ _ ~ Sups~hapllpts -500 lbs./sae 20% andyafs
NORMAL P000 ELEVATION \j~ ~j _ r. - ~Q` - ~ " Mulch - $ t+ene/ocn - amdl straw
t00.t0' ~ ~ _ , .Anchor - Asphdt Emulsion 0300 gds/acre - _ h~'
NiP TT~~ rT~
lp' gC~fS `tee Vl W
TO S FASE V! ~KF FO MENT
RIOTg SOiL & EROSION CONTRO N L LEGE D
1EtMpORARY Sa.T FENCE ~vt:RSION arcH
SF sTD, No, 40.01 STD. N0, 4D.33
TF 1REE PROTECTION FENCE GRAVEL AND RIP RAP
FILTER BASIN COAIBMIATION SILT STD. N0. 40.23
SFTF ~ TREE PROTECTION FENCE
STD' OM SHEET 3. CURB INLET SEDIMENT FILTER
115 DIVERSION 115 4' CH, MAx , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ CONSTRUC110N UNITS STD. N0. 4O.t3
PON D VATER SY E 'MULCH, MAX VAT R DEPTH 6' D VATER r S70RM DRAIN INLET
ATE DEPTH ' ~ / , PROlEC11ON CONSTRUCTION ENTRANCE STD. N0. 40.11
STD. N0. 40.02 CULVERT OULET
110 110 J < RETAINIWG ALL GRADE PROTECTION
PLANTING E ST. i MIN SOIL ~'-0' ~ S1D. N0. 40.27
MIN USES 16~w ~I.
USES L SOIL 105 105 DENUDED AREA
1-D' M1N BED, TYP BIO-i TENTION
z C-0' MIN A o SAND BED, 1YP 0-RETENTI 0.46 ACRES ON SITE Q
~ A
_ 100 100 CAq W 'cr.... ~
W P ~•,F>zssbt.,~y U oa y. U
Q 0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+00 0+10 0+20 0+30 0+40 0+50 0+60
. SEMI. W
° ° SECTION A-A SECT ON B-B • 24951
~ HORIZ 1"=10' VERT 1"=50' HORIZ 1"=10' VERT 1"=50' 0 7 ~ ~ H V
w
n; ~ ~ - vw+u a n.~~i aai~~ _ _ ~ .--j Y wn y u~N i ~t
I ~ „I~~r ~ T ~ ~ 3
r-, / tl. ~ ~ aw - - y_7 ~ a St:E~~ C; r 7R i:L k:~'E--, ,,,,,.~:1 - ~ . i 'd ~'n„
,x ran < ~ , 4.--- c ' - 1 Q wN
mac( .L~ ~ . - W
~ I ~ ~ - - ~ ipLL® !na"011 "p1 3
D CgOSS SECTION ~ ~ i h A o ~J do
N i. ' a~ ~ rd ~ ~ FROHT HEW I ~ ~ 0 1
~ ~ ~ ~ ~ ~
~ ~ ~ I u~str~t roe I ros+mh ce+re ~ oz unx. yLP
i ~ ` ! ~ i `A ~ a a gut stovES . _ { _ ~0~ 0
ry w ~ 1 . ` jMAY )
~ i i Mac y IY"~ S~OIF. ~ _ -V" 3 ~ HMk 04r ~ YANMIQ ~ ~q /"OpA •D
m cm,
as ss, • ....-STEP UT OR FlLt. o aEV s a., m GRAPHIC SCALE 0 E+
~OWO asx (T~'-' ~i" PLAN VIEW ,awigrc a& 20 o to ~ a m
C bptu ru
STANDARD TEMPORARY SILT FENCE DIVERSION DITCH
J N
O
' 20 SHEET 3OF ' 4

. ~ s~ _ - - -
. i .
i. o. ? ~`ff » . t ~yr_., :{d~..
f f - - - 1;
EIP LANNDSCAPE MAINTEkAItCE PLAN:•
____-._s""` The owner Of tAs property tad th~r bgertts, t5,~ra or assk~9 shah b be responsible for the inattslation prae?vatam terd rnoattenonce
tD of all plantings an4 physkol features shown vn this:plan. The owner shrill ba responsibN fpr orbtudi maintenoncw of the ~
~ vegetation to include but not iitaited ta: ~
•F•I o~ A. Fertiiizatiort: Lawn: Fertilize lawns twine per yea (Februay 15 t`
FIP 1~ r4 NIP c5 -March t5 and again (September f- October 3t) according to 'd I
- ~ soN tests. fertNhoe warm season grae~t once durutg growing ~ season per toN test.
- Y~ 9. Prunin : Pruain shall be limited to ?emavd of decd wood or m ' cn 9 9 f!!
_ r.I~ :L. braahes for trees or fa sight distance/safety reaon9. The ~ ~ ` ' "f" Shigo stondads sfrall be adhered to. the prwtilg of shrubs shall M «r
'!-f " .a, ' be limited to the pruning necessary to maintain the natural shape ~ ~
- ~ - NIP _ U of the plant except for. shNa4d hedges. .~.r N ~ C. Pest Control: Pre-emer tweed off lawn hr gen rzntf or sands ub ~ ~d .
o beds may be applied in February, Chemical treatment for insects infestation and disease may be applied and siiaH he specific io
_ - - r: LQT 5 the problem,
i D. Mulchin : Mulehin shod be maintained at a th of 2-3' in A 2.000 AC. i 9 9 dep ~ plant beds. Muk4! shots be redpplied every two yearn.
I E. Mowing: Primary fescue owns strait be mowed opprox~otely 30
times per year. Secondary turl aeon may be motritoined hi~ra p;ti „ and less fraquerita~ Wam season grosses shall be mowed a! ~ q
r needed Burin the season fa maintain the recommended ~ ~ q I ~ 9 grit ~p height of the species of turf gross. ~
F. Plant Protection: Avoid excess Intrusion into the root zone ores ~ A °q
of eatabfished pidntings. Y
Fodure to maintain all plairtings in accordance with ibis pion may
constrtNte o violation of the Unified Development Ordinance and may result in fines.
- - LANDSCAPE NOTES:
. 1. COORDINATE All WORK WITH ATE, GRADING, AMO
_ _ _ ____,_.__-_,r.-_ UTILITIES PLANS. , _ _ _ _ 2. VERIFY LOCATION OF UALITIES BEFORE PLANTING. '
. - - _ - _ ~ 3, SEED ALL AREAS DISTURBED BY CONSTRUCTIdV AND NOT
_ INDICATED TO BE PAVED OR PLANTED. USE REBEL 2 FESCUE
- , _ _ - " IN ACCORDANCE WiTH MANUFACTURER'S SPECIFICATIONS. - _ - _ ~ - ! i 4. INSTALI. ALL LANDSCAPE MATERIAL UPON C(kAPLETION
_ ~ DRIVE GRAVEL . - _ ~ OF GRADING ACTIN1iES. ~ p
_ - - - - ' S. MULCH ALL AREAS. THAi ARE NOT SEEDED, Mt1H PINE U = tv ~ -
r STRAW TO A pEP1H OF 3°. U u o 6. SEE DETAILS SHEET FOR LANDSCAPE DETALS. } ~ ~
_ - ~ - 1~, ~ 7. THE SELECTION OF PLANTS AND PLANTING METHODS SHALL ~ ~ ~ tri pp \
- _ - - - - ~cr oN CONFORM WITH THE STANDARDS OF THE AMERICAN ASSOCIATION W ~ z OF NURSERYMEN OR THE TOWN OF GARY STANDARD APPEARANCE Y
a~~ U i SPECIFICATIONS MANUAL, WHICHEVER IS STRICTER. Q W ~ ~
- / ! ~ 8. ALL TREE PROTECTION fENC{NG SHALL ~ MAINTAINED UNTIL All ~ U tUJ1 O fly'. \l SITE WORK iS COMPLETED• THE FENCING SHALL ~ REMOVED PRIOR
o , ~ TO THE FINAL INSPECTION FOR THE CERIIFlCATE OF OCCUP~ICY (CO).
~ ~ ~ 9. WHERE EXISTING VEGETATK)N FAILS TO FUNCAON ADEQUATELY 1 AS .THE REQUIRED BUFFER TYPE,. {I,E. TYPE A,B,C, AND 100 FOOT ,
~ ~ _ THOROUGHFARE CORRIDOR BIiFFER THE GARY SITE INSPECTOR )
.:r ~ ,4 RESERVES THE RIGHT TO REQUIRE SUPPLEMENTAL PLANTING IN t 1 ADaT10N TO THOSE SHOWN ~V THE PLANTING PLAN BASED ON
i ~.XISTING WOODEQ ARE~+ ' t'iISTING WGC}DED AREA , tEQ Af?E. ' ACTUAL FIE CON ~ Lo aTloNs. ~
' 1~: 10. THE SIZE OF THE PLANTING AREA AND SIZE OF PLANT - MATERIAL AT MATURITY SHALL ALLOW FORA 2.5 FOOT BUMPER
1 OVERHANG FROM THE BACK OF CURB.
/ \ v % / il. ALL HVAC SYSTEMS WiLL. 8E SCREENED FROM OFF-SITE VIEWS. 12. THE SITE SHAH BE STABILIZED AND SEEDED PRIOR TO THE
/ ~ / _ ISSUANCE OF A CERTIFICATE OF OCCUPANCY.
~ - ~ % ~~tW DRIV WAY E ~ \ 13. -ALL DUMPSTER AND CARD60ARD RECYCLING LOCATIONS WILL 8E SCREENED FROM OFF-ATE VIEWS.
h i 1 \ 14, NO TREE - - - Pmperty ut ~ SHALL 8E LOCATED WITHIN A ROADWAY RIGHT OF WAY
' OR WITHIN 5' OF A SIDEWALK, w CARR PETER 8 ANNA \ 15. ALL ABOVE TY P
t2 Lc ~ ~ r , u-Tr ~ 3 CF ~ F BL,- _NTI~N A~,EA~ P!N 0764-08.0044 CRCIUND Uill1 EQUI MENi AND fACILITIE$ BOOK 09055 PAGE 2115 ASSOCIATED WTTH ON-SITE ELECTRIC, CABLE, TELEPHONE, GAS OR ~~,,aa
~ i8~1 SL . OTHER SIMILAR UTIUTV ~ItALL ~E '1N THE SIDE OF REAR YARD W ZONE R40 AREA OF THE SITE AND SCREENED, Tli't~tE. F:X~IT pOS~BLE, NiiH
1 AR i ~ \ EVERGREEN PLANTMItiS: PTAN1tNGS SMAII ALLDtY FOR A MINIMUM OF
A 5' CLEARANCE AROUND THE STRUCTURE TO ALLOW FOR ACCESS. ADDITIONALLY, ANY SIDE OF THE STRUCTURE HAYIMtG A DOOR OR LOCK,
~ ~ THE PLANTINGS SHALL ALLOW FORA 10' CLEARANCE. THE AMOUNT OF
/ 106 \ CLEARANCE SHALL ACCOUNT fOR THE SIZE OF THE PLANT MATERIAL Q AT MATURITY. ~
~ 16. ALL VEHICULAR USE AREAS (DRIVES do PARKING AREAS) SHAH rr ~rl
BE SCREENED FROM OFF-SITE VIEWS. C'-'
0~ ' FW
cq TOP GRATE \ Rq W
~ 100.44 ~F
J A N ! ~ ~ N GREE
P300 EROSION CONTROL MAT ' 1~
3 ~W~ KS (I) a
v,/ . ~ 1 a ' t~• r` k Q
I\ F ,Y,
r"~
. Ntl rMwrA rMlq~ '•P ~po wltrfw
J 3n'N ''Ar< a o'• ?~o. f ~'~o•, o : ow~~S A. awrrrrwtrrrrrrr
1 AR 3 CF '•4':~o'a ~•.o o ; , rrwrr.~..a~.r. O'0 O O • ~ /S fW~rMMwIM MI?• 1 AR
o , oo. o: o 0
NA GREEN 5 C 5 C r ' 112 ~ rarwrwr~ra 8pr •1 ,
AQ Q N~.~. P300 EROSION •F CONTROL MAT Il~Q ~ wr
• p ~F~,. t 15 ROp K 3'(w) Ks'(I) r~rw (
OSF, 1 VVV rw.r nrro rrr a ra
OrI~M-rnwrsr ~2 YtO lM 1001wK
rwr roes ~ BID-RETENTION AREA
i. _ i N 11 D 4'-ll' i 580 SF
MIN N
v- N ~ ' aj e/arJ~Yt•ISM~ w¢. a wNw rww w a[ ar,a,w.r~
:s ;v USEr >W~tY CLAY IDAM eS PROPQSLU KEYSTQN °~'..".`'»n'°'w'...~w".r.~°"'."...~.'~.`°' .awnn.~a,r+,w,w.nr,4,pr,.~.
105 a a i- 'r !A TF ~ ' ~ E ~ AWING 1h LL SYS i-~ OR EQIA.L ~ ruKnac ~
Alm i~ED, TYP BID• T ' ~ r
H
100 »a r.
w ' . o w ~~Y,o •def twrwaeorrre`a.rwri W
o +0 0+10 0+20 0+so O+ao 50 o+so EXIST. POND 0 0 0+ NoRwL vooo REVAT'ION S N 1 ~1 f H , f ' ` 0 • pD ~ V ~
J a TYPICAL SECTION BIO-RETENTION NIP o.~ Irv rr rr rrw r, P ; Nasty r~Rwua+n f/•+~,
~ o e F'~1 oa> ror, ~rNa "f r rrw ,•a~ ~
w HORIZ 1"=10' VERT 1"=50' r a NIP f, MIMi+Yr~rer nrrr rw"
ip'AC CfSSEq w.a.:
0 0 TO J?4Kf $EhiEN T M FpR~ vwrrnw
N OTJ Va Wa, M fr~~Nlt O NIP W
r ww r"mi _ F-~ rrr ra ~ F/-f
6; SEEDBED PREPERATION ' SEEDING SCHEDULE/SPECIFICATIONS
1. Chisel compacted ar~os and sptl'ead topsoil 3 inches deep over adverse soil \ I ~
A~15-N v t ~ PLANTING RATE aanditianS, if oY01~dl,~e. o aH eacue 1201ba/acre g 2. Ri entire area to 8 inches d th. 4rt7. rtlru wi ~wir r~r - ~ Y rsu•e wr - rrrr rr b r ,
Nov 1-Mar 1 Toll Fescue 120 lbe./ocn p ~ ' do Abruzzi Rye 25 lbs./acre 3. Remove all loose rook,' roots, 9nd other obstructions leaving surface ,4~fYrMwM r1i fi.~ a
Mar 1-Apr t5 Toll fescue t20 Ibe./are reasonably smooth dhd uniform,
o HuNed Common Bermuda Grass t2 lbs./acre 4. Apply agricultural lin1e, fertilizef, and superphosphate uniformly and mix ~ Jul 1-Aug 15 Toll Fescue and so ms./acre with soil (see below'. BIO-RETENTION AREA ~1 AND #2 r~~; ~H Coq
Apr t5-Jun 30 Browntop Malet 35 Iba/oae 5. C time tillo a un~ 0 well- rued, firm, reasonobl uniform seedbed ^Q ers~.~arwMw~+r ~ 11 rsM ww w nc na m ~..w 0 O cs~ • ~ 4 1 ow ruuwQl ~f wwq~A~r wrraw rs~w wow 1• ~ ~f~ ? y.
3' •~~or Sorgum-Sudan Hybirds 30 Ibs./acre g y KEY QTY BOTANICAL NAME COMMON NAME is ` repored 4 to 6 fiches de MWIMMrAttrwrxrin rarw~ ~ NAME CAL HT, AT PUNTING ,~~F ~ ~ ~ . fio i <t°y@ ~rarorrorwoww~r~fawna ,
6. Seed on a freshly prepared s ed and cover seed lightly with seeding TREES ~ Temoororv -Reseed according to optimum season for desired egUlpment Or Cult~odi after Ing. ~ Q 2
permanent vegetation. Do not allow Temporary cover to grow over t2" in height before mowing, otherwise fescue may be shaded out. 7. Mulch immediately- 4f{er seed and anchor mulch. AR 2 Acer Rubrum REO MAPLE o J ~A61 LE 2 8' 10 B&B ~ X018
~ 8. Inspect all seeded iNeos and a necessary repairs or reseedings within the ,
' planting season, if possible. If d should be over 60~ damaged AC 6 Cercis canadensis EASTERN REDBUD ~ reestablish following original f ~ fertilizer and seeding rotes. REDBUD 2" 8 - T O BdtB E..,
9. Consult Conservation Inspector% maintenance treatment and fertilization SHRUBS N after permanent cover is est ed. LC 17 Loro etulum Chinensis LOROPETULUM 'Rubrurr Fri
a P , ~ iJ ULUM Rubrum 18"-24 3 GAL, f4 O.C. GRAPHIC SCALE
L r . ' o~ • Apply. Agricultural Limestone tons/acre (,3~t:OnffCCre in clay soils)
Fertilizer - 1,000 lbs./ - 10-10.10° D
C- Superphosphate - 500 /acre 20X'gnCjyxb
Mulch 2 tons/acre -mall grain sbVill~
Anchae ~6phalt Emui8lpn 0 300 901s/"" p Y i ( EN Pwr ) i inob • 20 ft
N
N R SHEET 4 OF A

- - - - _ _ _
: _ - - - z
" EIP NIP
r~

R~ 19 W •wl
333.0' - :46 v
NIP _ 0 ~
is
A LOT 5
2.000 AC. y
.J' X7,120 SQ. FT. ~
i
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_
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- ~
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~ ~ ~ ~ ~ ~~.r. ~ ~ ~J ~J \
i ~ \ '
i ~ \ ~ ~ ~ ~ ~ \
~ ~ 1 ~ \ ~
i ~ ! ~ _ ~ ~ ~ ~ ~
i / ~ ~ \ A ti ~ ,
/ / Y ~ ~ / ~ w °i .r~~ ~ 'L. , 4 ~ ~ Property ct
l i ~ ~ 1 k _ ~ CARR, PETER 8 ANNA
i' ~ r 1 PIN0784-08-OC~t t BOQK 09055 PAGE ;115
~ ~ , ~ A - ` ~ zoNE Rac LEGEND
~r \ ~ V
\ li` +l 115 ~ ~ - ~ ~ v ~ ~ COMPUTED POI^Ir ~ \ ~ IRAN PIPE SET
~ ~ ~ ~ ~ H ~ ~ EXISTING IR[]N PIPL~ M+~+1
_ . - p~ _ - ~ ~ i.~~ o ~ , \ w ® _ ~ ~ \ ~ \ ~ ~ xxxx STREET ADDRESS
~ ~ / ~ ~ ~ ~ ~ p ~ ~ P PpWER PALE H ~ x
~ ~ - . ~ ~ ~ ~ / ~ ~ ~ p~~` r111N PINE ~ ~ ~ ~ \ _ INE ~ ~ ~ _ . LP LIGHT PALE
\ \ E OVERHEAD ELECTRIC LINES ~4,
TOP GRATE , ~ _ ~ ~ ~ ~ ~ ~ 100, 44 ~ ~ ~ ~ D ELE HONE LINES ~°r , . , ~X- FENCE F
~ ~ ~ Tp ~ ~ ~ ~ . ~ CENTER LINE CREEK _ _ t ~ ~
~,4,;~'~• ~ f R ~ DRIVEWA ~ - W WATER VALVE ~ ~ E ..r:.. .
. ~ ~ ~ DO ~ ~ ~ f l . fI~E HYDRANT ~ , ,{d y '
~ ~ 7 - CO ~41tY EWER Ol.EAN OUT ' . ' MH SA AMY SEWER ara e i ~ .E
~ ~ ~ ~ 1 garage 9 9 ~ O
~ \ ~ I EXISTING GAF ~ ~ TD BE REMO~ EXISTING GARAGE / ~ ~ ` TD BE REMOVED/ \ A . a
/ r__ _ ' • ~ / ~ N T
~ ~ ` ~ - ys t~ ~ ~ 0 Y, UTILITIES wITH VISIBLE EVIDENCE LOCATED, 1.. ' ~ ~ / ~ ~ . - U UTILITY LINES SHOWN A
~ ~ ~j ~ ~ ~ ~ ~ ~ ,mss z ~ ~ ~ fl ~ ~ \ Ol~kr, RE APPRpXIMATE C.~ ~ ~J a -E"XT' T IS ESTIMATED & Mar BE INCOMPLETE.
r. ~ EXCAYAT N IO MAY BE REQUIRED ~ T© VERIFY LOCATIpNS,
100,00' i ~ ; AK 4? ZQ~ OTHER UNDERGROUND UTILITIES \ _ ~ _ - 1 ~ MAY EXIST, CALL ONE CALL l__ - ~ ~W- ~~~NTER AT I-8~-632-4 4 ` ~ 9 9 BEFBRE DIGGING,
~ ~ ` uN 0 TpP OF WATER ~ ~ ~ ~ , ~ wer ~ ~ ~ ~ m - ' pUAl1n
AT LAKE - - W ~ ~ p r
/ ~ ~ . EXISTING RESIDENCE ~ ~ ~ ` ~ _ _ ~ ~ , tiw, - - \ ~ ~ •
2nd stor ~ _ TO BE REMOVED ~ onl
~l ~ y dd~~ ~ . / ~ . ~ Ni]TE STREAM IS INTERMITTENT BLUE IN , L E
~ ~ _ ; lip ~ ~ ' - - - - pN USGS MAP MAY pR MAY 0 NpT REQUIRE BUFFER,
r ~ ~ / ~ ~ ~
SI~~JFR GROVE DR ~ ~ ~ ~ ~
~ ~ ~r i ~ ~ ~ i RED=RENCES~
~4, u ~ ~ .M - - - - - - , ii 1998 PG. x'281
~A / ~ ~ ~ ~ ~
~ ~ i
~ \ ;:r - , ~ ~ .SURVEY INF R r,,~ p MATION IS DUPLICATED FRAM INFORMATION
2 _ OBTAINED FRGM MA P - ~ ~ llLDI d WATKINS SURVEYING, PA AYES
EXIST. POND A E~. TAKES dJ RESRpNSIBILTY FLjR ACCLRACY pF s x
~ NORMAL POOR ELEVATION S, 100.!0' ~'1Q _ F 0 ~ : IN ORMATIpN SHAWN HERE ON. ,r
~ H ~ ` ~ r~,~
W ~u ~ Z O C F~ t Q
~ H L~ - NIP
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~ T ~ ~ T ~ AT rP T !1 AT A Tl T, A Tl T A A T ?'i1T 1? T !''1 T'1 T ~ 1 T
~~v i\,L' 1 L' 1V 11V1V tinr,ti t'1,AlV 111V lx t'LAlV F Raw
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SITE DATA TABLE _ _ _ -
_ _ _ _ _ _ _ - EXISTING USE: SINGLE FAMILY
w _
_ _ - - - - - - - _ - - - - - _ _ - - OWNER OF RECORD: GARDNER, DAVID E &
- ' - - CHERYL C
_ - ' ~ RAVEL DRIVE G 'RAVEL DRIVE _ _ _ _ _ - - - 102 ANNA LAKE LN ___.------------l~ CARY, NC 27513
< ~ ~ WAKE COUNTY PIN: 0754-97-6865 DEEO BOOK: 08604
DEED PAGE: 2fi57
~S~{tU p N Q N I ~
' ~ .i i-- V ZONING: R-40 ~ _ w o
~ ~ J~~ 25' R - _ 13' r " a ~ ~ ~ H ADDRESS: 102 ANNA LAKE LN as n
r' ~ 1 CARY, NC 27513
,r t 2' ~ U JWJ W 'N' ~ Q H ~
~ AREA OF TRACT: 7.95 AC p~ ~ ~ qq A U N A
~ ~ f ~ r ~ ; ~ EXSTI d~ EXISTING ~^iOCIDED AREA PROP05ED BUILDING
i~ Ek!STiNG w\DED AREA i SINGLE FAMILY RESIDENCE
i i NUMBER OF UNITS: 1
i ~
i ~ ,I ~ PROPOSED BUILDING FOOTPRINT:
/ 1~ . RESIDENCE do GARAGE AREA: 7,280 SF
/ NEW URvL'rVAY 1 a2' R~ / / VEHICULAR SURFACE AREA: 2,224 SF
i Prnuertyot TOTAL IMPERVIOUS SURFACE: 9,504 SF CARR. PE?ER a ANNA
/ ~t \ ,-i5' R ~ P~~ ~~~~a-os-ooaa DENUDED AREA: 0.46 AC
/ ~ BID-kETENTION AREA R ~I BOOK `19055 PAGE 2115 ZONE R40 W PR T N M R -
/ 780 Sf ~ . _1 / r D Q OJEC U BE 04 1896
/ i t0~ R .h A. GARDNER PROPERTY, LOT 1 GALLUP SUBDIVISION, 102
~V 1 ~.9 ~ ~ ~ ANNA LAKE LANE, CARY,NC R ~-'1 PIN N0. 0754976865, REID N0. 0143458
V ~ ~ UT TO CRABTREE CREEK [03-04-02, 27-33-(1), C NSW n
s,.r ~ ~ _ N TRI NT N ITIV W W (U E SE S E ATER)]
~s.r -
,
~ 42' NF a '1 WC
~ TOP GRATE ! qRq 100.44 GF 'qGF ~ ~ -
J ~ ~ NA GREEN 24'-8 4'-8" ~ ~
~ w P300 EROSION / 2 ~ ~ ~ `
~ ~ 50.9'
3'(w '(I) ~ GL^I~RAt. CONSiAUCAON NOTES J
1, ALL DIMENSION'S SHOIMI ARE TO THE BACK OF EDGE OF PAVEMENT,
f ~ , W UNLESS OTHERWISE INDICATED ON THE PLANS. CONTACT THIS FIRM
i a FOR A LISTING OF COORDINATES FOR ALL PARKING LOTS AND BUILDING ~
CORNERS. 2 TILL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CURRENT
ill OF CARY STANDARD SPECIFCATIONS AND DETAILS.
i 3. ALL EXTERIOR LIGHTING SHALL BE DESIGNED TO PREVENT
\ ~ NA GREEN - ».s' OFF-SIZE GLARE. , _ 4. IT IS 1HE RE9PONSIBIUTY OF THE OWNER GINEER TO SECURE
\ p0 PJ00 ERQSION FF CONTROL MAT ON ~ ~ ER0.S7 ~ THE FOLLOWPIG PERMIT. THE TOWN OF CARY GRADING PERMIT AND
\ • p DEC . ~ R pA k 3 (w) x5 (Q NTROL MAT - OTHER PERMITS THE PROJECT MAY REQUIRE. w) FYI) ~ A
~Sf , 5. CERTIFICATE OF INSURANCE TO VERIFY WORKERS ~ 4; COMPENSAApI WSIIRANCE AND A COMPLIANCE VERIFICATION FORM
D z, e. MUST BE COMPlET~O BEFORE AN ENVIRONMENTAL PERMIT WILL BE
~ i ~2 ISSUED.
810-RETEtuTior AREt. ~ 8. THIS PROJECT MAY REQUIRE A PRE CONSTRUCTION CONFERENCE ~ BEFORE AN EN41RON11ENTAL T IS ISSUED ~ 58C Sir
i t2t'-8" 7. THE CONTRACTOR A 11 TH ~ SHALL LL U UTI~S PRIOR TO E
,is COMMENCEMENT OF GRAOMrG A~,'~I CONTACT ULOCO AT 1;BOa-832-4949 FOR f1E1D LOC~1 OF UN~RGROi~q UTILITIES.
~ % ~ PROPOSED KEYSTO~J a ~AI,~ PAVEMENT SHALL ~ 2" h2 Et ~ ABC STONE FOR DRIVE WAY
~ RETAINING W.AL~. SY`_; ~ E OR 4 TH -OF 3000 PSI CONCRETE. SPECIFICATIONS BY OWNER
i ~ O1kERWiSE NOTED ALL OT VA A T OR LCUAI_ 4 SP ELE TK>rlS RE OP OF
ASPNAt T OR FlNISH SURFACE. 10. ; Al~ilITECTURAL ANO STRUCTURAL PLANS FOR BUILDING
I AND FEATURES.
11. IILUtJBING PLANS FOR LOCATION AND SIZE OF ROOF
I `WATER LINES AND SEY~J! LINES. a1.' LATERALS SHALL BE PLACED AT A MINIMUM SLOPE OF 1
EXIST. POND X ON tr LINES AND 0.6X ON Q' LINES. CLEANOUTS SHALL BE
NORMAL POOD ELEVATION t00.t0' NIP ~ • PLACEO AT A MAXIMUM SPAGNG OF 75' ON 4" LINES AND 1O0' ON M~1
d LWES. a J -
w 0
z 0 aACCE~ W
w J Tp BEM LgKFF ENl ~
a U s ~ :tIQ
w ~N GAS
a A,,.......a~ W 4;" FcsS,~O•;~y
~ a A E~
0 0 ti ~ . • ~
N 810-RETENTION AREA CALCULATIONS ~ s U1 2~i1 a
u~ s. w y .
. iri A EA ~ AREA ~1 iv 9 ~ ti ~
O ~ ~l'~' ~ A. ^
IMP AREA 7,300 SF IMP AREA 2,641 SF 2,641 SF N W
r w
~ GRASS AREA 5,800 SF CRASS AREA 4,391 SF c 4,391 SF ~ • !t D~ ~
0 ~ ' WOODS AREA 4,400 SF WOODS AREA 1,100 SF r 1,700 SF ~y
a a W
TOTAL DRAINAGE AREA 17,500 SF TOTAL DRAINAGE ARFJ1 8,732 SF 8,732 SF ~
N T
Cc=(0.95(IMP)+0.30(GRASS)+0.20(WOODS))/17,500= 0.55 CC=(0.95(IMP~0:90(CRASS)+0.20(WOODS})/8,732 Sf _ o DS})/8,732 SF - 0.48
L 05 x Cc = 209 SF '
m REQUIRED SURFACE AREA = 17,500 (0.05) x Cc = 47x3 Sf REQUIRED SURFACE AREA = 8,732 (0.05) x Cc = 2 v
SURFACE AREA PROVIDED = 780 SF SURFACE AREA PRi~lA1ED = 580 SF HIC SC A v a8 e
0 L m >a . ~ ~ o
m - _
Q10= 0.55 x 7.22 x (17,500/43,560) = 1.60 CFS 010= 0.48 x 7.22 x (8,732/43,560) _ .69 CFS .69 CFS r'
0 rf
n POND VOLUME _ (536 + 780)/2 • 0.5 = 329 CF POND VOLUME _ (350 + 580)/2 ; 0.5 = 234, CF / 234, CF ft.
rn N f
D Y
N D ~ i
O SHEET 2 OF 4 mop

coNSTRUCnoN SEQUENCE
I' 1. OBTAIN T OF CARP GRADING PERMI ENVIRONMENTAL PERMI ~ i OMIM ~ T)
••NOTE: A PRE- CONSTRUCTION CONFERENCE MAY 8E REQUIRED PRIOR TO ISSUANCE L1+ OF GRADING PERMIT.
•'NOTE: TREE PROIECnON FENCING MUST ~ INSTAt.LEO PRIOR TO ISSUANCE OF ^ o } _ - GRADING PERAAT, ~
_ ~ u
_ - 2. INSTALL TEMPORARY GRAVEL. CONSTRUCnON ENTRANCES, DIVERSION DITCHES, SLIT ~ ~ FENCE,TREE PROTECTION FENCE AND SEDNAENT BASINS PER THE APPROVED SqL •,~V1 ~
. I, _ - . _ - - EROSION AND SEDAIENTA110N CONTROL PLAN. V ,ti p Co - W
- i - - 3. CALL THE TOWN OF GARY EROSION CONTROL INSPECTOR AT 460-4043 FOR AN ~ ~ L. ~ x _i-
- - " ~ GRAVEL DRIVE ~ ONSITE IMSPECnON PRK)R TO ANY t.AND DISTURBMIG ACnVITY. GJ dap . I
r _ _ _~_._____.._~---..-.-------~°1 4. 08TAIN A CERTIFlCATE OF COIr~UANCE. m
r•- / _ E - - _ ~ ~ ~~,o 5. BEgN CLEARING, gtIABBING AND GRADAVG PER THE APPROVED PLAN, MAINT/JN u o
, ALL MEASURES AS REQUIRED TO ENSURE THEIR PROPER OPERAnON. u ~ ~
_ - - . - - 11 I ~ b ~ pa ~ U t>;1 6. INSTALL THE STORM WATER COLLECnON SY$TEM AND PROTECT STORM INLETS q ~
A y WITH SILT FENCE, GRAVEL FILLERS, SEDAr~NT TRAPS OR OTHER APPROVED MEASURES ~ N ~
~ ~ - ~ ~ 1 / ~ ~ / ~ ~ AS SHOWN ON THE PLANS: INSTALL ONLY THE SEGMENI5 OF STORM SEWER PIPE ~ q o° THAT DO NOT CONFLICT PATH THE LOCAnON OF THE SEDAIIETrT BASINS AND CATCH d ~ o ~ ~
ter, I BASIN RISER BASINS. p q Z I
l''~ /`r ~ t ~ OQ .q i; ~ { 7. GRADED SLOPES AND FlIIS ARE TO BE PLANTED OR PROVIDED 1MTH PR01ECnVE ~ ~ e~cfl ~,y !I COVER SUFFIpENT TO RESTRANI EROSION MATHIN 15 WORKING DAYS OR 30 DAYS, w ~ u tip ~
i r~~, ~i ~ ~ Y, i ~ , i NAI~VER IS SOONER, AFTER t~MPLE110N OF ANY PHASE OF GRADAiG. ALL AREAS ~ ~
_ ~ l~ ~ ~ i UPON WHICH NO FURTilER LAND DISTURBING ACTIVITY MALL BE UNDER TAKEN ARE TO ~ 4 M oo e ,I BE PLANTED OR PROVED MATH PROIECnVE COVER Wlnf~ 30 WORKING GAYS. THIS
- y i _ ~ ' Y INCLUDES THE AREAS MAiERE BUIIDMIGS ARE TO BE LOCATED AND NOT BUILT ON
1 ? ~ \ i ~ WITHRi T}~ JO WORKING DAYS. USE THE SEED 8E0 PREPARAtION AND SEEDING ~ f ~ SCHEDULE FOR SLOPE STABIUZAnON MEASURES. V1
11 J ~ i ~ 1 r" ' I
f ~ y ~ f f ~ I I I I I 1I~ ~ ~ ~ 8. AS CONSTRUCTON PROGRESSES INSTALL PERMANENT EROSION CONTROL MEASURES i RIP RAP APRON VELOCITY DISSIPATERS CHANNEL LINERS AND GRAVEL SUCH AS S, ,
_ / . , BASE COURSE, ETC.
9. WHEN CONSTRUCTON IS COMPLETE ANO ALL AREAS ARE STABILIZED CALL FOR ONS11E INSPECTON 8Y 1HE SEOIMENTAnON CONTROL NiSPECTOR.
I~ , . I
~ ~ ~ ~ f~ 1 / ~ , G ~ td. If SIZE IS APPROVED REMOVE TEMPORARY DIVERSION DITCHES, SILT FENCE,
~ „ ~ ~ SEDN~NT BASINS, ETC. AND INSTALL REMAINING STORM STRUCTURES, FLARED END t;~~;r SECTIONS AND RIP RAP DISSIPATER PADS. THEN SEED, PAVE OR RIP-RAP
1 A~/ ~ / 7~ ~~)'j-I ~ j1* \ RESULnNG DISn1RBED AREAS.
~~1111 III 1 I A / ~ =:k'~: i 11. WHEN VEGETAnON IS ESTABLISHED CALL FOR FINAL SITE INSPECTON. If THE
{ , ~ ~ ,5 1 ~ . , ~ SIIE IS APPROVED THE PERFORMANCE BOND, IF REQUIRED, YMLL 8E RELEASED > o .i N = N ~
~ ~r ~
~ 0 \ / ~ / ~ h 'Y ~ _ ~
f/f S~ ~ ~ ~ 0~ ~ ~ f~ ~ SEEDING SCHEDULE/SPECIFICATIONS ~ \ z ~ w _ ~ o
- P ~ ~ ~ iLAIE APE PLANTING RATE 3 v J W "N''
~ _ ~ ~ ~ ~f Jtf Aug 15-Nov 1 Tall fescue 120 lbs./acre a W ~ ¢ w o: _
~ TDP GRATE ~ 1 e ~ ~ _ Nov 1-Mar 1 Tall fescue 120 lbs./acre a ~ a ~
~ 100.44 ~ ~ ~ - do Abruzzi Rye 25 lbs./acre ' Mar 1-Apr 15 Tali Fescue 120 lbs./acre
~ \ ` ~ ~ NA GREEN 1 ~ ~ ~ ~ ~ ~ P300 EROSION ~ Hulled Common Bermuda Gross 12 lbs./acre
~ i CONTROL MAT f ~ f s Jul 1-Aug 15 Tall Fescue and 60 lbs./acre
~ ~ ~ e ~ .0 ~ ' j Apr 15-Jun 30 Browntop Millet 35 lbs./acre
' ~ ~ ~4 ~ 1 ~ ' _ ~ "'or Sorgum-Sudan Hybirds 3p lbs./acre I ~
~ bo fir \ ~ ""'••Temporary -Reseed according to optimum season for desired
~ se ~ \
t` / X ~ ~ permanent vegetation. Do not allow Temporary cover to grow over a 'i _ - 12" in height before mowing, otherwise fescue may be shaded out.
~ , _ a w
NA GREEN / SEEDBED PREPERATION , h V
\ P300 EROSION T 1~2. 1~ o 12 r s and s read to soil 3 inches over adverse soil T !1 .r ~ 1. Chisel compacted a eo p p deep ~~yy
~ CONTROL MAT 1~ 112E 2p ~ conditions, if available. W < 2. Rip entire area to 6 inches depth.
f 3'(w) x5'(I) , f~ _ ~~1 5 Ids ~ I 3. Remove all loose rock, roots, and other obstructions leaving surface
•S nif rm. _ ~ reoaonobl smooth and u o ~ Y 4. Apply agricultural lane, fertilizer, and superphosphate uniformly and mix
_ ~ Q
_ <~I~ ~ . with soil (see below'). it w II- Iv i d firm reasonobl uniform seedbed < 5. Continue tillage unt a e pu er ze , y
~ i - -i - 580 is prepared 4 to 6 inches deep. 6. Seed on a freshly prepared seedbed and cover seed lightly with seeding
\ ~ ti \ ^ ~ ` < ~ egaipmant or cultipock after seeding. TT Z At V
'r < 7. Mukfi inMAsdiately after aMdiiq and anchor mulch. < f'1? F?`~SE-' ?r_'s'~; - In ect all seeded anw and make neceaaor r or reseedin a within tht 0
S - - sF - .IIIIT.1;. 0 ~ sP Y~ 9 Z J i I IT r,, ;.11NG 'P planting season, ii poeuibls. If eland should be ovn ~ damogFd My I"t
w loll IHIt p ; n . • ~ _ - reestablish folbwinq c?iginal ~ fertlliter and ~~`~~e. ~i
~ 9. Consult Conservotisp Iq~pector an motntenance tnotrna?t and httiflzotion _ Q; - ~ ' after permanent cover ki Ntobtlahed.
i 1- W
, • Apple Agricultural Limestone - 2 tuna/oae (3 tons/acre in clay soils) FertMiter - 1,000 lbs./acre - f0-10-10
Supsryhosphote - 500 lbs./acre 20X anolysia W
EXIST. POND ~~DO _ Mluldt - 2 torN/aae -small groin straw r',
NORMAL POOD ELEVATION O 100.30' ~ Anchor - Asphalt E'mulsi~ 0 300 gals/acre W ~ ` _ F~
. ~ ~.,A
r~ NIP V! W
10`ACCF . U~
rC SS EASFhtr r . LAxE FOR t f ,
SOIL & EROSION CONTROL LEGEND
\ F 1EMPORARY SILT FENCE ? ? ? DIVERSION DITCH
\ S STD, NQ 10.04 STD. N0. 40.3J
TF iREE PROTECTOON FENCE GRAVEL AND RIP RAP • STD. N0. 50.02 FlL1ER BASIN
COMBINATION SILT/ STD. N0. 40.23
SFTF TREE PROTECTION FENCE ~ 3' CURB INLET SEDIMENT FILTER
~ ~ ~ ~ CONSTRUCTION LIMITS Sn). N0. 40.13
115 19tvtrtslDN 115 4' CH, MAX E • ~p1, ~ STORM DRAIN INLET PROTECTION
PDI D VATER y~~ YAT R DEPTH 6' ATE ~pTH CONSTRUCTON ENTRANCE S1D. N0. 40.11
STD. N0. 40.02 CULVERT OULET PROTECTION
110 GRADE S1D. N0. 40.27
110 ~'-a NIN
aLa+Ttrw - SDn +'-o'
MIN ~I ~pw SmL IiSEI L SOIL DENUDED AREA
105 -p 101
105 EO• TYP BU]- TENTIpN REA 0.46 ACRES ON SITE Q
w P-D' MIN SAND BED, TYP T T
H caq W ~ ~ '».~t
100 Q 100 o . ~FE ~o .,y ~ Q y ;y
i .Q SEAL
L 0+00 0+10 0+20 0+30 0+40 0+50 0+60 0+00 0+10 0+20 0+30 0+40 + 0+ a W • ~ 24951
s; ~ . A 1 f~ l~
S 1 ' ON A-A SECTION B-B v ~ U~
N ~ 1 "=1 VERT 1 "=50' HORIZ 1 =10 VERT 1"=50 HORIZ 0 ~ O
W
~ ~ - +w~ ~ onno n x rro FUV~CRil'.. r
~ ~ ~ - - n1 -r--,-- ' 1 S © ~
o~ o ~ o ti ~
C J ~ 9 q i•:f - 1 A ~
.Kr..: ~ mruw ~i CROSS SECTIQN wo ~..x~nn ~ ~
' U Rt~ ~ ~
I; i!- ~p~~~ ~O
L. • • li]I61.I...st4u ~
- 'G54nh fR~C4 '.qx MAk I rnP. Af ~S~.~f ~ i Y~ -VATS fsC .7 J
T I ";y- ~uAIQ 1118 i ~ w, 4J1. :K't~ Vii...
,r, 4 ~luwrt 2~ a'!) ~ 1~ ^rt ru. ~A
w.- ~ ~ , ~1 ~ _'t . . i~ fl) 9 +l '.W ~ i11V~ S4N U2 K/ i \ ~ HT Yl' I Ylf ,M'. Tf ^M:; xp_p w : `~IIW t{Nf ...+q;^NY Y O
GRAPHIC SCALE ~.1
j - _ s--- J wFCna'n~erea • 20 0 10 10 N ao
N•.ert im 9@ i s PLAN E~f - -
C
N DIVERSION DITCH STANDARD TEMPORARY SILT FENCE (M NW)
O 1 inoII ~ ~0 tt SHEET 3 OF 4
11

` ~ ~ x r?~ s
- - " . k,f
~ ~r'p !
.y. EiP LiW05GAPE MAIN'{ENA1fGE Pl„
_ " n of th t arHt thek agents, heirs or dssigna shall The ow er e p operty
be respontuble fol' the instoNatfon, pteservotion o(~d maintanuAOe' ~ t b i featursa shown vn thls plan. Tfie ~ ~ a -.I___~~- ' ~ of all plantings and p?+ya col. ~ is
owner shalt be responaibfe for :ormuai mo~tensnce of the ~ _ - O vegetation to include Dut nat timlted to: •1a,
- o,
_ _ ~ A. Fertilization: Lawn: Fertgze Iovv~R twice per year (February 15
-March 15 and agoih (September 1- October 31) according to b l II t Fertilize worm won puce during growing Q NIP ~ so test 9r
-~'~~iR E ~ season p~ soil test. fit op . ~ B. Prunin : Prunin fall be tlmited to ttsnovoi of dead wood or I
1 I, cn g g branches for trees a far.. t distance/safety reasons. The rCA
- dh~eted The run of shrubs shill ..+.I $h standards afidl be o t6 P i^g m oin the natural Sher ~ be ~ ted to the prynMq necessary to aint Pe u
- ~ ,.r of the plant a iat sheered hedges.. 1-r q tweed oonttol for lawns and shrub
N C. Peat Contrd: In+stpRn ~ beds ma be applied in f sbncry. (xgimic~l treatment for insects
~~1~ , NIP y al be s ecific to infestation and dialWe nlpy be opplled and sh I P pj the problem.
o LOT 5 f 2-3" in ~ o ~ . D. Mulching: Matching shah bs ma~t¢ined at a depth o ~ gp,e
I, _i C. ~ ~ r tied ever two years. q x I 2.OU0 A plant beds. Mulch shall be eapp y C q E, Mowing: Primary fescue towns shall be mowed opproxinotdy 30 q ~ d
~ turf 6?eas ma be molntained hi er ~'q ~ times per dear. Setondory Y 9l' ~ °n .
and less frequenYn -Worm segioh grosses shall be mowed as e. ~ ~ f to maintain the recommended ~ A ~ needed during the gtowirn} Noson ey
~ h ' t of the ecies of .turf gross. 'Qi prj { sgh ~ F. Plant Protection: Avoid excess intrusion into the root zone area ,
of established plantings.
FoAure io maintain all. plaMmgs in atcordanca with this plan may
constitute o violation of the Unified Development Ordinance and
rnoy result in fines.
- "'r LANDSCAPE NOTES:
• -----"~J 1. COORDINATE ALL WORK WITH SITE, GRADING, AND
~ UTILITIES PLANS. _ J - ~ 2. VERIFY lOCAT10N OF UTILITIES BEFORE PLANTING. -
- _ - - - " 3. SEED ALL AREAS DISTURBED BY CONSTRUC110N ANO NOT
} - - ~ _ - - ~ INDICATEb TO BE PAVED OR PLANTED. USE REAL 2 FESCUE - i _ - . - _ - _ . IN ACC ANCE WI1H MANtIFAC1URER'S SPECIFIGAIIONS.
_ . - - - - J" - - ~ 4. NFST All LANDSCAPE MATERIAL UPON COMPLETION }
"J - , OF CRADRIG ACTiNTIES. a N - i. 5. M1~CH ALL ALAS, THAI ARE NOT SEEDED, MATH PINE U I uf.
- " ~ GRAVEL DRIVE RIVE _ _ _ Y o a , _ _ - - _ _ STRAW TO A DEPTH OF 3". ~ j: ~ n
_ ~ - - i 6. SEE pETAN,S SHEE1 F-0R W~09CA~ DETMIS. } m ~ p m ~ 7. TFIE sflECnoN OF PLANTS AMD PUWT(NG METTiODS SHALL ~
i s aF THE"~.AMENiCAN AssodanoN ~ ctNiFORit MItTH TF1E stA?ro,1RO ZZ ~
- V TO1MI OF CARY STAt1~ig0 APPEARANCE 3 U ~ ~ OF NURSERrwIEN T?IE a w a~ 5 I SPECIF?CATiOiVS M/fNUAI. WHICHEVER IS STRICT1iR.
- _ _ _ - - - - _ ~cnoN AINTAINED UNTIL ALl ~ U N ~ a 8. ALL TREE PROTECTION FENCING SHALL BE M
t - C~51R I SITE WORK IS COMPLETED. THE FENDING SHALLBE REAi0VE0 PRIOR TO THE FINAL INSPECTION FOR THE CERTIFICATE OF OCCUPANCY (CO). ,
~ 9. WHERE EXISTING VEGETATION FAILS TO FUNCTION ADEQUATELY
L .TYPE A,B,C, AND 100 F00T AS TitE REQUIRED BUFFER 1YPE, ( E ARE CORRIDOR ~JfFfR) THE CARY SITE INSPECTOR ~ THOROUGHF
RESERVES THE RIGHT TO REQUIRE SUPPLEMENTAL PLANTING IN
i ~ % , A TiON TO THOSE SHOWN ON THE PCANTING PLAN BASED ON DDI ACTUAL FIELD CONDITIONS.
i ~ ~ _ - EXISTING WOODE f k ` THE PLANTING AREA ANO SIZE OF PLANT STING WOODED aRE ~ 10. THE slzE DF
MATERIAL AT MATURITY SHALL ALLOW FORA 2.5 FOOT BUMPER ,
`~I~TING WQODED AREA ~ ~ OVERHANG FROM. Thy BAdt OF CURB. 11. ALl HVAC SYSIEIAS Wa.L BE SCREENED FROM OFF-SITE NEWS.
11. THE SITE SHALL B[ STABILIZED AND SEEDED PRIOR TO THE ISSUANCE OF A CERTIFICATE OF OCCUPANCY. 4
_ _ 13. ALL DUMPSTfR AND CARDBOARD RECYCLING LOCATIONS WILL BE
i ~ / J SCREENED FROM OFF-STE NEWS. le. NO 1REE SHAH BE LACATED NtTHIN A ROADWAY RIGHT-OF-WAY
' d: OR rATIiIN 5' ~ A $I~WAiK. '
: GAR,pE1818gNNA 15. ALL ABOVE4ID`U11U'fY EQUIPMENT ANO fAClllilES plpp~,t~,®0,{q ASSOCIATT:D 1MTH ON-~i'FE ELECTRIC, CABLE, TELEPHONE, GAS OR
~ ~ ~ . 09056 PAt~ 2115 OTHER SIMIUR UiTIiTY SHAH ~ LOCATED IN THE SH3E OF REAR YARD BOOK
~ /t ~ 3 CF ZONE R~0 ARl;A OF THE SITE AND SCREENED, TO iT#-EXTENT POSSfBIE, WiTH ';°n EVERGREEN PLANTINf s. PLANTINGS `aNAll ALLOW FOR A MINIMUM OF
810-RETEN110N AREA _.~^~,J`~~~,r__ STRUCTURE TO ALLOW fOR ACCESS.
. 180 Sf ~ 1 AR _ '~(j~~ny ;Ah ~ ~ n ^ A 5' CLEARANCE AROUND THE Y ANY SIDE OF THE STRUCTURE WAVINEt A DOOR OR IOCK, AOD?TIONALL , Zj ARANCE. THE AMOUNT OF TtIE PLANTINGS SHALL ALLOW FORA 10' CLE ANT MATERIAL
ALL ACCOUNT FOR THE SIZE OF THE PL O \ CLEARANt~ ~
_ AT MATURITY. . A$ atIVE$ ~ PARKING AREAS) SHALL ,a ~ ( ~ _ ALL
~?`f' J ~ ~ aE sa~D -~h aEws.
. ~ - r '
; ri - 'ry
_ ~ ~
~qR W
~ :.x~ 7
, J NA GREEN
P300 EROSION 4'< _ a. Q r
CONTROL MAT 3'(w) x5'(I) :i
r-1
v ``4' IININr Wain Nrllr
. , y. ~ ~ °t t.. P ~ dal err N rri
: oW{;'R. ' o . r ."la erw rrr wao. n~i.+ .o. '"9'~~O• P '1p rYUr na riwriNw wrr
A~ P ° ~ ~ h ,N.Nra,yM.lrrau
l 1 AR a .>N. . . .sal r save • II,Oa
NA GREEN 5 LC T Op 1 - N...
A we;i P300 EROSION ~y,~ BOT ~J n..n aGN 1120
F T .F A CONTROL tYtA tAT I rw w MNaa rw r 1040
Rpp Ck 3'(w) x5'(0 OS wrrM-rawrrsr Y wN.ao 0101 Ml M
FD 115 • ~ y _ O1~Y 0101Il ~
l
810-RETENTION AREA , - F 580 S
i
o ~ I O ,MIN IMl ll a w.r..IIOOar M 0[ Haste Ya raN O N aver rsr. a we to r oar R M .aaNitr ra r rN•OIA~
r i r ~ a~lw a+ n rrrr+rrr• Mawr ~ P ~`-D KEYSTON ~ PRO OSt Z
' I .M ao ?ETAINING WALL SYSTE a~ ~ ~
USES SANbt CLAY EOAN OR E40AL
105 tl~a IGN BAND BED, TYP D
.e :o ° ` ~~5 '
L .•t W ~ ~
o d o°~ ..w.wrr+larlrrWwN TEP,!]UAL r~' 4 ao~o ~1p~E~~NRa~~,W1~A VATERBR~
100 • EXIST. POND OeA 0 ~ ~•MIOrOIA1K ~iiJaW/•- ' 0 rnrr Mlw Prr ll / ,
0 •0 0 fff-'..~~~111 NIP b • 0 tat lrrlrnf O1r01a
w +00 0+10 0+20 0+30 8+40 O+SO 0+60 Ntxarta~ I~ooo ELEVATION t00.t0' 0 0 •5 aq arwalr~•or. NrNxow
SECTION BIO-RETENTION TYPICAL A E~-, tr•NRrulnraarNaaN M .
a = HORIZ 1"=10' VERT 1`=50' rw-rlrrurv[Iw 1,; ACCESS. erwrmra~
w r r BEM o ~r< ENr N..a.«".. Q E FpR lOT ° ~
a ' S ~~NIP IMilO NN W
u~ 0 blear a...
0 N _I ~y
SEEDBED PREPERATION Nfl. - r au W rwN ~ Iwr I~~t
Q1 SEEDING SCHEDULE/SPECIFICATIONS ea..ral-rrrrsrr W W rtrorwoYr
1. Chisel cam acted ot~is and spread topsoil 3 inches deep over adverse soil PI ANTING RATE p - an rox r t`~"'1
I~ET TYP Conditions, if iVilldble. Aug 15-Novi Toll Fescue 120 lbs./acre 2 Rip entire are0• ~ b inches depth. - c~R ~ ~c o A .•a' fM~•.. C~ N
Nov 1-Mort Tau Fescue 120 Its./acre 3. Remove all loose rock, roots, ind other obstructions leaving surface air o11~rw rlrr w w eta. it are ~ P~f<(t$vs/0 ee,~ F~ ~r~N. rr orrN?rNr N~~++NNir ~~R ~ ~7
~ & Abruzzi Rye 25 tbs./acre reosonobly smoOM Ond uniform. ~ Mar 1-Apr 15 Tall Fescue 120 lbs./aae n aaarl~ oM. ~ ~ a :w• ¦rMr"f Oir~O • e ~y e
re 4. A I a riculturol lime, fertilizer, and superphosphate uniformly and mix BIO-RETENTION AREA #1 AND #2 ~ Hulled Common Bermuda Crass 12 lbs./oc PP Y g CAL HT. AT PLANTING r. ae.«~morrrrwlaMruer• e 'h Q N NAME V CoMMO
° Jul 1-Au9 15 Toll Fescue and 60 lbs./acre With Sail See tallow`). C~MM( ~ Miuet 351bs,/acre KEY QTY BOTANICAL NAME - n Brownt 5. Continue tillo unlit o well-pulverized, firm, reosonobly uniform seedbed Apr 15 Ju 30 op _ n H irds 30 lbs. acre
or sorgum suds y0 / is prep~red 4 to 6 inches deep. a on o fresh) re fired seedbed and cavort' seed lightly with seeding TREES ,tie rt~t+raa 1 v
n for desired 6. Seed y P p r s din RED h ~ DOrQry -Reseed according to optimum seoso equipment or CUltlpeck ofte ee g AR 2 Acer Rubrum RED MAPLE 2" 8 -10 B&8 ~ ,
permanent vegetation. Do not avow Temporary cover io grow over 7, Mulch immedi~dlX Otter seeding and anchor mUICh. ~TEI RN REDBUp 2" 8'-!0' B&6 M-Nl EASTE
12" in height before mowing, otherwise fescue may be snoded out 8, Ins ect all seeded areas and make necessity repairs or reseedings within the AC 6 Cercis conadensis ~ P ~ planting season, if possible. If stand should bC over 60% damaged
,o SHRUB L reestablish fdfpwing original time, fertilizer and seeding rotes. C SC~ ter' o.c. - GRAPHI
~ LOROF ~ 9. Consult Consetvotion Inspector on ma~ntenioce treatment and fertilization a, LC i 1 i Loropetulum chinensis LpROPETULUM 'Rubrum 18 - 3 GAL' r J ~ ~ 1 e M ' ' 0 N ~
~ nfter oermonent Cover is estobllshed. - - _
N
a I Limestone - 2 tons/acre (3 tons/acre in clay soils) ~ Apply: Agncultura w '
Fertilizer - 1,000 lbs./ocre - 10-10-10 EN FEW,
o Superphosphote - 500 ibs./acre 20% analysis Jwh ~o
a MuWh - 2 tons/acre - small grain straw c Anchor`- Asphalt Emulsion @ 300 gOS/ocre SHEET 4 OF A
0) N O a
N
C
f 'ek
ONA