20070988 Ver 1_Information Letter_20070614

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buffer calculations.jpg Content-Type: image/jpeg
2 of 3 6/14/2007 12:05 PM

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Office Use Only:p~ •;~` Form Version March OS
USAGE Action ID No. DWQ No. ~ ~ ~~ ~~~ ~~~~
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 14 and NWP 33
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here:
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ^
II. Applicant Information
1. Owner/Applicant Information
Name: NCDOT Division 5. J. W. Bowman
Mailing Address: 2612 N. Duke St., Durham, NC 27704
Telephone Number:~919) 560-6851560-6851 Fax Number: [phone]
E-mail Address: wbowman~dot.state.nc.us
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name:
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 1 of 9

2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at ht~_!/h2o,ens•.state.nc.usl~~-rp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): 46 FT
Amount of buffer mitigation requested (square feet): 2,419.5 SF
Amount of Riparian wetland mitigation requested (acres): N/A
Amount ofNon-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ^
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ^ No
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ^
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Page 7 of 9

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Site 1 (STA 11+00) ALLOWABLE IMPACTS
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 1,219 3 (2 for Catawba) N/A
2 609 1.5 N/A
Total 1,828 N/A
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an I
additional 20 feet from the edge of Zone 1. ~~ ~ 1 t-Q `
Site 1 (STA 11+00) ALLOWABLE with MITIGATION IMPACTS
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 361 3 (2 for Catawba) 1,083
2 891 1.5 1,336.5
Total 1,252 2,419.5
* Zone I extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Site 2 (STA 39+93)
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 1,485 3 (2 for Catawba) N/A
2 978 1.5 N/A
Total 2,463 N/A
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additiona120 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. Unavoidable impacts to 2,419.5 SF of
parallel buffers at Site 2 will be mitigated by payment into the North Carolina Ecosystem
Enhancement Pro ram (NCEEP).
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
Stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. Existing: 2.59 acre impervious surface (avg 32
foot wide Qravel road) of 4.86 acre total proiect size. Proposed: 1.62 acre impervious surface
(proposed 20 foot wide asphalt paved road) of 4.86 acre total project size. The new impervious
surface is 0.97 acre less than existing. All areas not paved will become vegetated shoulders, ditches
and back slopes
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Page 8 of 9

XIL Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
This project will not ,generate wastewater.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Is this an after-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http:%ih2o.enr.statc.nc.usr'nc«-etlands. If no, please provide a short narrative description:
Upgrading this dirt road will not result in additional development.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
for J.W. Bowman (HWM) revised electronically 06/14/07
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9

SR 2309~(Duke's Lake Road) Wake County
Subject: SR 2309 (Duke's Lake Road) Wake County
From: "Heather W. Montague" <[e-mail]>
Date: Thu, 14 Jun 2007 11:57:24 -0400
To: Rob Ridings <[e-mail]>
Rob- The following information should help. See attached image
for clarification of how I calculated these impacts. Also I've
revised the PCN and attached that to discuss the mitigation
proposal to go with EEP and revised buffer tables showing
allowable impacts, allowable with mitigation numbers, and the
total required mitigation amounts. If you print pages 7-9 you
should have the corrected information to complete your review.
Site 1: Parallel buffer impacts from SE side of cross line
(allowable with mitigation)
Zone 1: 361 SF
Zone 2: 891 SF (913 SF + 478 SF)
Site 1: Remaining buffer impacts associated with perpendicular
crossing (allowable)
Zone l: 1,219 SF
Zone 2: 609 SF
GRAND TOTAL = 3,080 SF for Site 1 (same as originally reported).
Sorry for any confusion our application may have caused. Thank
you so much for calling instead of sending a formal on-hold
letter. -Heather
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