20110767 Ver 1_More Info Letter_20110902

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September 2, 2011
DWQ Project # 11-0767
Wake County
CERTIFIED MAIL: 70101870 0001 3428 0686
RETURN RECEIPT REQUESTED
Aaron Brower
City of Raleigh
One Exchange Plaza, Suite 620
Raleigh, NC 27602
Subject Property: Mango Creek Interceptor Sewer Replacement
Mango Creek [030402,27-32, C; NSW]
UT to Neuse River [030402, 27-(22.5), C; NSW]
REQUEST FOR MORE INFORMATION
Dear Mr. Brower:
On August 9, 2011, the Division of Water Quality (DWQ) received your application dated August 5, 2011 to fill or
otherwise impact 0.52 acre of wetland (temporary impacts), 0.01 acre of wetland (permanent impacts), 47 linear feet
of intermittent stream channel (temporary impacts), 114 linear feet of perennial stream impacts (temporary
impacts), 5,353 square feet of Zone 1 Neuse River basin protected riparian buffer (temporary impacts), 310 sqaure
feet of Zone 1 Neuse River basin protected buffer (permanent impacts), 6,138 square feet of Zone 2 Neuse River
basin protected riparian buffer (temporary impacts), and 216 square feet of Zone 2 Neuse basin protected riparian
buffer (permanent impacts) to replace a sanitary sewer line adjacent to an existing line. The DWQ has determined
that your application was incomplete and/or provided inaccurate information as discussed below. The DWQ will
require additional information in order to process your application to impact protected streams and buffers on the
subject property. This project is on hold and incomplete until we receive the additional information requested
below. If we do not receive the requested information, your project will be formally returned as incomplete. Please
provide the following information so that we may continue to review your project.
Additional Information Requested:
1. The buffer impact table in the PCN application indicates that B 1 and 132 are temporary
impacts. However, these impacts will be in a permanent easement as indicated on the Impact
Sheets and the cover letter to the application packet states that maintenance corridors will be
reduced to 10 feet in riparian buffer areas. Explain the discrepancies and submit revised Impact
Sheets, PCN form, and cover letter accordingly.
NorthCarolina
;Vatmrallry
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: www.ncwaterquality.org 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
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2. Impact Sheet 7 indicates that buffer impacts (for this sheet) are temporary but the PCN form
has it broken out into permanent and temporary impacts. Please explain the inconsistency and
adjust your application to accurately portray/depict proposed impacts.
3. On Impact Sheet 1, a wetland appears to be located within the temporary construction
easement. However, no impacts are accounted for in the application. Is this correct?
4. Section 3i of the PCN application indicates that all stream crossings are currently disturbed.
However, the Impact Sheets indicate forested areas along the streams which does not seem
consistent with the statement in 3i. Please explain and provide pictures documenting currently
disturbed areas.
5. Existing conditions observed on the Plan Sheets depict rip-rap located around Impacts 1 and 2.
Please note that currently permanent stream or buffer impacts (rip-rap) are not proposed in the permanent
easement outside of the currently rip-rapped areas. Therefore, only the footprint of the currently rip-
rapped area can contain rip-rap at the end of the construction.
6. Have you obtained permission from NCDOT to impact waters of the State and riparian buffers on
NCDOT's Mitigation Parcel? If so, what type of impacts (temporary and/or permanent) have you been
granted permission? Are Impacts 1 and 2 proposed along features that are currently being used as
NCDOT mitigation credits?
Please submit five copies of this information within 30 calendar days of the date of this letter. Please send
additional information to DWQ Central Office, Attn: Karen Higgins, 1650 Mail Service Center, Raleigh,
NC 27699-1650 and copy Lauren Witherspoon ([e-mail]). If we do not receive this
requested information within 30 calendar days of the date of this letter, your project will be withdrawn and you
will need to reapply with a new application and a new fee. If you need additional time to compile the information
requested above, please email Lauren Witherspoon ([e-mail]) requesting an extension
and indicate a new date for submittal.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters or
protected buffers. Please be aware that any impacts requested within your application are not authorized (at this
time) by the DWQ. Please call Lauren Witherspoon at 919-791-4251 if you have any questions regarding this
letter or would like to set up a meeting to discuss this matter.
Sincer ly,
Danny Smith/
Raleigh Regional Office Supervisor
Surface Water Protection Section
cc: DWQ Raleigh Regional Office File Copy
WeBSCaPe -1650 Mail Service Center
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DLR Raleigh Regional Office
Phil May, Carolina Ecosystems, Inc., 3040 NC 42 West, Clayton, NC 27520
Filename: 11-0767_Manco Creek Interceptor Sewer Replacement_401_NBR_On-Hold