HomeMy WebLinkAbout20050217 Ver 2_More Info Received_20070321~W!<
rDIGI<S
community infrastructure consultants Q ~~~~M
l:/
M,4R~~~
March 19, 2007 9AJ
~ ~ W4
Mr. Ian McMillan, Environmental Specialist III
Division of Water Quality, 401 Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
RE: Army Corps of Engineers Pre-Construction Notification and 401 Permit
Meadow Greens, Covenant Branch and Dan River Sanitary Sewer Improvements
City of Eden, North Carolina
WKD # 40358.OO.RA
Dear Mr. McMillan or To Whom It May Concern:
Pursuant to Daryl Lamb's request, we are sending four set of plans and this cover letter as a courtesy
notification. Please note Mr. Lamb/Ms. Virginia Baker was originally sent this letter and a set of plans.
The City of Eden Public Utilities Department has contracted with W.K. Dickson & Co., Inc. for design
of approximately 2,000 linear feet of 8 and 12 inch gravity sanitary sewer collectors and outfalls to
serve the Meadow Greens, Dan River and Covenant Branch wastewater collection subsystems. This
project will meet additional conditions set forth in a Special Order by Consent (SOC) by the Division
of Water Quality and Environmental Management Commission.
Enclosed for your review and records for the above referenced project are four sets of design drawings
that show the additional sanitary sewer work for the above referenced project. We previously
submitted a Preconstruction Notification for the initial phase which involved multiple stream crossings
and were granted 401 Water Quality Certification with Additional Conditions. The date of this
approval was March 7, 2005.
The additional work will consist of several non-contiguous improvements to the City's water and sewer
system. These improvements can be observed on Sheet C2 and consist of the following individual
improvements:
• Manhole cover replacement at various locations
• Two point repairs on an existing sewer line between Pierce Street and Van Buren Road (NC
Highway 14). The repairs likely total less than 100 feet in length.
• Replacement of multiple sections of sewer including:
1. Approximately 600 linear feet of sewer on Mebane Street between Marshall Street and
3101 )ohr~ Hi~mpliriE~; l1'~~r~ci
lei. 9 f `).%&?.G~495
as ~) 19.82.967
~eh'VV \k.~l'~:l~ICi~SOS1.C OIll .. ~.
Meadow Road. This sewer will be relayed.
2. Approximately 350 linear feet of sewer on the unopened right of way known as East
Avenue between Country Club and Fairway. This sewer crosses beneath a small
intermittent stream. It will be relayed. The stream crossing will be performed in the same
existing footprint and does not introduce any new impacts to the stream
3. Approximately 350 linear feet of sewer replacement along the shoulder of Stadium Drive
between Country Club and Edgewood. It will be relayed a shallower depth to minimize
impacts to the eastern travel lane of Stadium Drive.
4. Approximately 700 linear feet of realigned sewer across two fairways of the Meadow
Greens Golf Course to remove a sewer installation inside an existing 36-inch culvert. The
realignment allows greater separation between the sewer and the piped stream (greater than
15 feet) and abandons a sewer pipe in direct flow of a stream. The work will require one
minor aerial stream crossing and the removal of two minor aerial stream crossings and
three manholes that are located extremely close to the stream. Since the new aerial
crossing is replacing an existing aerial crossing and will occupy the same footprint, the
impact can be considered maintenance. Work within 15 feet of the stream is unavoidable
and can be considered maintenance. Furthermore, the realignment will greatly benefit the
stream and reduce total existing impacts.
5. Approximately 175 linear feet of realigned sewer to remove an undesired flow angle along
the Long Street outfall between Long Street and Fieldcrest Avenue.
• Approximately 605 linear feet of water line extension along Mebane Street. The COE has
opted to include a 6-inch water line extension from the intersection of Marshall Street and
Mebane Street to the existing 8-inch water main that runs parallel with Meadow Road. This
decision is supported given the sewer line on Mebane Street between Meadow Road and
Marshall Street will be replaced. Since the existing water line is a galvanized 2-inch main and
was on the City's prioritized list to be upgraded to 6-inch main and the street will already be
impacted from the sewer line replacement within the same stretch, the inclusion of the water
line extension into this additional work is justified.
The work will disturb less than 1 acre of land. Therefore, this additional work does not mandate an
approved erosion and sedimentation control plan; however, the plans show necessary erosion and
sedimentation control measures and will be installed prior to construction. The work will also be
administered under the original Erosion and Sedimentation Control approval. The City's Contractor
shall meet all local and state erosion and sedimentation control guidelines and adhere to the original
contract's erosion and control guidelines.
We also believe this project is exempt from any preconstruction notification or request for water
quality certification given the maintenance nature of this project and since it is well below the
threshold of 150 linear feet of stream impact. As we noted in Items numbered 2 and 4, both sewer
repairs involve minor stream crossings and are improving existing undesirable impacts. The crossing
that will be performed in Item 2 and Item 4 will be in accordance with the conditions set forth in your
division's original approval of the initial phase of this work.
We trust our notice is both beneficial and well received by your agency. Please advise if you need any
additional information.
Sincerely,
W.K. Dickson & Co., Inc.
Mask /Jfic
Mark W. Fisher
Enclosures
cc: Steven Tedder, Surface Water Protection Supervisor, NCDENR
Daryl Lamb, NCDENR
Todd Tugwell, USACE
Brad Corcoran, City Manager in care of Kim Scott
Dennis Asbury, Public Utilities Director
Bev O'Dell, Director of Engineering
Bill Harvey, C&D Superintendent
File 40358.OO.RA I