20210177 Ver 1_More Info Received_20210520

Strickland, Bev
From: Emmett Perdue <[e-mail]>
Sent: Thursday, May 20, 2021 2:08 PM
To: Homewood, Sue
Cc: Boggs, Brandee C SAW ([e-mail]); Munzer, Olivia
Subject: RE: [External] RE: Yadkin Valley Sewer stream stabilization projects
Attachments: YVSA_Construction Sequence.docx
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Sue,
I have included as an attachment the draft construction sequence for the project. The purpose is to divide the three
work areas into sites and phases that will limit the contractor from opening up too much work area that cannot be
completed and stabilized in a day. To that end, in each work phase it is stated any work along the streambanks must be
treated with seed, soil, soil amendments, and matting at the end of each day. For any soil that is not used as fill in the
project, there will be designated stockpile areas away from the stream that will have silt fence along the down gradient
side(s). These stockpiles will either be stabilized with seed within 14 days or spread on site and stabilized at final grade
at the end of that day. Finally, for the Yadkin River Bank Stabilization Site, we intend to place silt fence along the toe of
slope while performing the work and then leaving it in place for a minimum of 14 days or until vegetation establishes,
whichever is greater. Therefore, we are using staging techniques to limit the amount of disturbance at a given time,
vegetation strategies and matting to stabilize the work in place, and where we can sediment and erosion control
measures to limit sediment from entering the system.
We have not completed a full erosion control submittal at his point, but we are getting very close. I have added this
construction sequence and the following general note to the plans:
WORK SHOULD BE DONE DURING LOW FLOWS. WHERE EQUIPMENT MUST WORK WITHIN THE STREAM, WE
RECOMMEND DIVERTING FLOWS AROUND THE WORK AREA, ESPECIALLY AT THE BANK TIE IN LOCATIONS TO REDUCE
THE RISK OF FINE SEDIMENT LIBERATION AND LOSS.
Please let me know if you require additional information or if I can answer any questions.
Thanks,
Emmett
Emmett Perdue, Water Resource Engineer
919-215-6757 (m)
919-388-0787 (o)
[e-mail]
From: Homewood, Sue <[e-mail]>
Sent: Tuesday, May 18, 2021 4:02 PM
1

To: Emmett Perdue <[e-mail]>
Cc: Boggs, Brandee C SAW ([e-mail]) <[e-mail]>; Munzer, Olivia
<[e-mail]>
Subject: RE: [External] RE: Yadkin Valley Sewer stream stabilization projects
Thanks Emmett,
Can you provide a couple sentences on what measures you will employ to ensure that work along the banks does not
result in sediment loss and/or turbidity issues within the stream channels during construction since you'll be working "in
the wet".
Thank you.
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
From: Emmett Perdue <[e-mail]>
Sent: Tuesday, May 18, 2021 3:01 PM
To: Homewood, Sue <[e-mail]>
Cc: Boggs, Brandee C SAW ([e-mail]) <[e-mail]>; Munzer, Olivia
<[e-mail]>
Subject: [External] RE: Yadkin Valley Sewer stream stabilization projects
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Sue,
I am including a link to the updated plan set that now includes the vegetation plans.
https://epr-tx.sharefi le.com/d-sbafb562056174d639e11e874bd71f4ad
For the Cobb Creek Site (and other sites), where we can we will plant trees. However the goal of the project is to
stabilize the sewer infrastructure utilizing green techniques, but the sewer authority cannot allow trees to be planted
within 15 feet of their lines. Additionally, we are not planting the access areas with trees but with herbaceous cover.
We are not planning on pumping around for any of the sites due to drainage area size. Cobb Creek (Site 1, sheets 4 and
5) has a drainage area of 1.9 sq mi, Sandberry Creek (Site 2, sheet 6) has a drainage area of 8.4 sq mi, and the Yadkin
River (Site 3, sheet 7) is roughly 867 sq mi.
2

Please let me know if this information suffices or if I need to provide anything further. Thank you for patience in my
response.
Emmett Perdue, Water Resource Engineer
919-215-6757 (m)
919-388-0787 (o)
[e-mail]
From: Homewood, Sue <[e-mail]>
Sent: Monday, May 10, 2021 11:46 AM
To: Emmett Perdue <[e-mail]>
Cc: Boggs, Brandee C SAW ([e-mail]) <[e-mail]>; Munzer, Olivia
<[e-mail]>
Subject: Yadkin Valley Sewer stream stabilization projects
Hi Emmett,
I wasn't able to tell from the application documents: do you intend to pump around the work at the Sandy Berry and
Cobb Creek sites? If not, can you please provide a justification for why that cannot be achieved.
Also, for the Cobb Creek site that is mostly forested, can you provide some details or drawings showing where trees will
have to be removed and whether they will be replaced with tree plantings or remain in herbaceous vegetation in any
areas.
Thanks.
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
3

COBB CEEK — DIN 385727 — SITE 1
PHASE 1
MOBILIZATION AND ESTABLISHMENT OF GENERAL EROSION CONTROL MEASURES
1. Identify and locate staging areas, stockpile areas, construction entrances, stream crossings required for
construction access; limits of silt fencing, limits of tree protection fencing, and construction access and haul roads
as shown on plans.
2. Install stream crossings required for construction access.
3. Stockpile materials in designated staging areas.
4. Install silt fencing to the limits shown on the plans and at any other locations as directed by the Engineer. Silt
fencing will be installed around the limits of all staging and stockpile areas.
5. Install tree protection fencing as shown on the plans and at all other locations as directed by the Engineer. Flag
all vegetation to be transplanted.
6. Contractor must complete each Phase within a Site prior to proceeding to another Phase and must complete each
Site prior to proceeding to another Site.
PHASE 2
COBB CREEK STA. 10+00.00 TO 13+80.00 — ONLINE CHANNEL CONSTRUCTION
1. Access for this portion of the work will be from the north side of the proposed channel.
2. Establish and clearly mark the sewer line. Avoid working directly overtop the sewer line when possible. Cross the
sewer line perpendicularly when possible. No special protection is required to cross the sewer line, but a minimum
of 3 feet of ground cover must be established before traveling over any portion of the sewer line.
3. Perform construction staking.
4. Remove all vegetation transplants, including individual specimens and vegetated mats, stockpile and maintain in
accordance with the project specifications.
5. Perform required removal and treatment of exotic vegetation within and adjacent to the specified reach limits. All
required removal and treatment (initial treatment) of exotic vegetation should be completed prior to proceeding
with the remaining activities in this phase.
6. Perform required clearing and grubbing, including specified removal of dead mature trees and/or dead specimen
trees.
7. Segregate and stockpile topsoil and other soil material in accordance with the project specifications.
8. Beginning at the upstream end of the area of active construction, proceed in the downstream direction with the in -
stream structure construction and repairs as specified on the plans.
9. Perform all topsoil replacement, vegetation transplanting, seeding (temporary and permanent), soil amendment,
mulching, and installation of all erosion control matting as specified on the plans and the project specifications.
Associated repaired or disturbed stream banks will have permanent and temporary seed, soil amendments, mulch,
and erosion control matting applied to them as work progresses and by the end of each day. Erosion control
matting will be installed on top of the seeded, amended, and mulched stream banks according to the project
specifications.
10. Remove and dispose of all unused vegetation materials.

11. All excavated soil materials not utilized will be stockpiled and maintained according to the project specifications.
After the completion of construction, all unused soil materials shall be spread on site in designated areas at the
direction of the Engineer. Spread soil to be stabilized using seeding per the project specifications. If any excavated
soil materials need to be, are specified to, and actually are disposed of off -site by the Contractor, the Contractor is
responsible for disposal of such soil materials in a permitted area, as well as for providing and implementing an
erosion and sedimentation control plan and permit, or any other required permit(s), for the location(s) off site where
such materials are disposed.
12. All remaining disturbed areas are to be amended, seeded, matted and/or mulched according to the project
specifications.
PHASE 3
COBB CREEK STA. 21+20.00 TO 23+40.00 — ONLINE CHANNEL CONSTRUCTION
1. Access for this portion of the work will be from the north side of the proposed channel.
2. Establish and clearly mark the sewer line. Avoid working directly overtop the sewer line when possible. Cross the
sewer line perpendicularly when possible. No special protection is required to cross the sewer line, but a minimum
of 3 feet of ground cover must be established before traveling over any portion of the sewer line.
3. Perform construction staking.
4. Remove all vegetation transplants, including individual specimens and vegetated mats, stockpile and maintain in
accordance with the project specifications.
5. Perform required removal and treatment of exotic vegetation within and adjacent to the specified reach limits. All
required removal and treatment (initial treatment) of exotic vegetation should be completed prior to proceeding
with the remaining activities in this phase.
6. Perform required clearing and grubbing, including specified removal of dead mature trees and/or dead specimen
trees.
7. Segregate and stockpile topsoil and other soil material in accordance with the project specifications.
8. Beginning at the upstream end of the area of active construction, proceed in the downstream direction with the in -
stream structure construction and repairs as specified on the plans.
9. Perform all topsoil replacement, vegetation transplanting, seeding (temporary and permanent), soil amendment,
mulching, and installation of all erosion control matting as specified on the plans and the project specifications.
Associated repaired or disturbed stream banks will have permanent and temporary seed, soil amendments, mulch,
and erosion control matting applied to them as work progresses and by the end of each day. Erosion control
matting will be installed on top of the seeded, amended, and mulched stream banks according to the project
specifications.
10. Remove and dispose of all unused vegetation materials.
11. All excavated soil materials not utilized will be stockpiled and maintained according to the project specifications.
After the completion of construction, all unused soil materials shall be spread on site in designated areas at the
direction of the Engineer. Spread soil to be stabilized using seeding per the project specifications. If any excavated
soil materials need to be, are specified to, and actually are disposed of off -site by the Contractor, the Contractor is
responsible for disposal of such soil materials in a permitted area, as well as for providing and implementing an
erosion and sedimentation control plan and permit, or any other required permit(s), for the location(s) off site where
such materials are disposed.
12. All remaining disturbed areas are to be amended, seeded, matted and/or mulched according to the project
specifications.

PHASE 4
DEMOBILIZATION AND PLANTING
1. Complete remaining minor grading and site planting preparation work, including ripping and/or discing, as specified
in the project specifications.
2. All remaining disturbed areas, including areas that have been ripped and/or disced after temporary and/or
permanent seeding activities, are to be amended, seeded, matted and/or mulched according to the project
specifications.
3. After all construction requiring heavy equipment is completed, remove silt fence, restore construction access roads,
staging areas, and stockpile areas. Immediately regrade, replace topsoil, and seed, amend, and mulch as
specified in the project specifications.
4. Remove temporary construction entrances. Immediately regrade, seed, amend, and mulch as specified in the
project specifications.
5. Remove all tree protection fencing.
6. Complete all remaining proposed permanent vegetation planting, per the plans and project specifications.
7. Remove and dispose of all trash, metal, and debris from the site according to local, state and federal regulations.

SANDYBERRY CEEK — DIN 385728 — SITE 2
PHASE 1
MOBILIZATION AND ESTABLISHMENT OF GENERAL EROSION CONTROL MEASURES
1. Identify and locate staging areas, stockpile areas, construction entrances, stream crossings required for
construction access; limits of silt fencing, limits of tree protection fencing, limits of trout buffer, and construction
access and haul roads as shown on plans.
2. Utilize pre-existing construction entrances.
3. Install stream crossings required for construction access.
4. Stockpile materials in designated staging areas.
5. Install silt fencing to the limits shown on the plans and at any other locations as directed by the Engineer. Silt
fencing will be installed around the limits of all staging and stockpile areas.
6. Install tree protection fencing as shown on the plans and at all other locations as directed by the Engineer. Flag
all vegetation to be transplanted.
7. Contractor must complete each Phase within a Site prior to proceeding to another Phase and must complete each
Site prior to proceeding to another Site.
PHASE 2
SANDYBERRY CREEK STA. 10+00.00 TO 12+25.00 — ONLINE CHANNEL CONSTRUCTION
1. Access for this portion of the work will be from the south side of the proposed channel.
2. Establish and clearly mark the sewer line. Avoid working directly overtop the sewer line when possible. Cross the
sewer line perpendicularly when possible. No special protection is required to cross the sewer line, but a minimum
of 3 feet of ground cover must be established before traveling over any portion of the sewer line.
3. Perform construction staking.
4. Remove all vegetation transplants, including individual specimens and vegetated mats, stockpile and maintain in
accordance with the project specifications.
5. Perform required removal and treatment of exotic vegetation within and adjacent to the specified reach limits. All
required removal and treatment (initial treatment) of exotic vegetation should be completed prior to proceeding
with the remaining activities in this phase.
6. Perform required clearing and grubbing, including specified removal of dead mature trees and/or dead specimen
trees.
7. Segregate and stockpile topsoil and other soil material in accordance with the project specifications.
8. Beginning at the upstream end of the area of active construction, proceed in the downstream direction with the in -
stream structure construction and repairs as specified on the plans.
9. Perform all topsoil replacement, vegetation transplanting, seeding (temporary and permanent), soil amendment,
mulching, and installation of all erosion control matting as specified on the plans and the project specifications.
Associated repaired or disturbed stream banks will have permanent and temporary seed, soil amendments, mulch,
and erosion control matting applied to them as work progresses and by the end of each day. Erosion control
matting will be installed on top of the seeded, amended, and mulched stream banks according to the project
specifications.
10. Remove and dispose of all unused vegetation materials.

11. All excavated soil materials not utilized will be stockpiled and maintained according to the project specifications.
After the completion of construction, all unused soil materials shall be spread on site in designated areas at the
direction of the Engineer. Spread soil to be stabilized using seeding per the project specifications. If any excavated
soil materials need to be, are specified to, and actually are disposed of off -site by the Contractor, the Contractor is
responsible for disposal of such soil materials in a permitted area, as well as for providing and implementing an
erosion and sedimentation control plan and permit, or any other required permit(s), for the location(s) off site where
such materials are disposed.
12. All remaining disturbed areas are to be amended, seeded, matted and/or mulched according to the project
specifications.
PHASE 3
DEMOBILIZATION AND PLANTING
1. Complete remaining minor grading and site planting preparation work, including ripping and/or discing, as specified
in the project specifications.
2. All remaining disturbed areas, including areas that have been ripped and/or disced after temporary and/or
permanent seeding activities, are to be amended, seeded, matted and/or mulched according to the project
specifications.
3. After all construction requiring heavy equipment is completed, remove silt fence, restore construction access roads,
staging areas, and stockpile areas. Immediately regrade, replace topsoil, and seed, amend, and mulch as
specified in the project specifications.
4. Remove temporary construction entrances. Immediately regrade, seed, amend, and mulch as specified in the
project specifications.
5. Remove all tree protection fencing.
6. Complete all remaining proposed permanent vegetation planting, per the plans and project specifications.
7. Remove and dispose of all trash, metal, and debris from the site according to local, state and federal regulations.

YADKIN RIVER — DIN 385728 — SITE 3
PHASE 1
MOBILIZATION AND ESTABLISHMENT OF GENERAL EROSION CONTROL MEASURES
1. Identify and locate staging areas and stockpile areas. This work is being conducted within and adjacent to a gravel
parking lot therefore no construction entrance will be required.
2 Stockpile materials in designated staging areas.
3. Install silt fencing to the limits shown on the plans and at any other locations as directed by the Engineer. Silt
fencing will be installed around the limits of all staging and stockpile areas.
4. Contractor must complete each Phase within a Site prior to proceeding to another Phase and must complete each
Site prior to proceeding to another Site.
PHASE 2
YADKIN RIVER BANK STABILIZATION
1. Access for this portion of the work will be from the east side of the Yadkin River.
2. Establish and clearly mark the sewer line. Avoid working directly overtop the sewer line when possible. Cross the
sewer line perpendicularly when possible. No special protection is required to cross the sewer line, but a minimum
of 3 feet of ground cover must be established before traveling over any portion of the sewer line.
3. Perform construction staking.
4. Perform required clearing and grubbing, including specified removal of dead mature trees and/or dead specimen
trees.
5. Place fill within the limits of grading to the lines and grades shown on the plans.
6. Perform all topsoil replacement, vegetation transplanting, seeding (temporary and permanent), soil amendment,
mulching, and installation of all erosion control matting as specified on the plans and the project specifications.
Associated repaired or disturbed stream banks will have permanent and temporary seed, soil amendments, mulch,
and erosion control matting applied to them as work progresses and by the end of each day. Erosion control
matting will be installed on top of the seeded, amended, and mulched stream banks according to the project
specifications.
7. Remove and dispose of all unused vegetation materials.
8. All excavated soil materials not utilized will be stockpiled and maintained according to the project specifications.
After the completion of construction, all unused soil materials shall be spread on site in designated areas at the
direction of the Engineer. Spread soil to be stabilized using seeding per the project specifications. If any excavated
soil materials need to be, are specified to, and actually are disposed of off -site by the Contractor, the Contractor is
responsible for disposal of such soil materials in a permitted area, as well as for providing and implementing an
erosion and sedimentation control plan and permit, or any other required permit(s), for the location(s) off site where
such materials are disposed.
9. All remaining disturbed areas are to be amended, seeded, matted and/or mulched according to the project
specifications.

PHASE 3
DEMOBILIZATION AND PLANTING
1. Complete remaining minor grading and site planting preparation work, including ripping and/or discing, as specified
in the project specifications.
2. All remaining disturbed areas, including areas that have been ripped and/or disced after temporary and/or
permanent seeding activities, are to be amended, seeded, matted and/or mulched according to the project
specifications.
3. After all construction requiring heavy equipment is completed, restore staging and stockpile areas and remove silt
fence associated with these areas. Silt fence shown along the toe of bank at Yadkin River shall remain in place
for a minimum of 14 days or until vegetation has established, whichever is greater. Immediately regrade, replace
topsoil, and seed, amend, and mulch as specified in the project specifications.
4. Remove temporary construction entrances. Immediately regrade, seed, amend, and mulch as specified in the
project specifications.
5. Remove all tree protection fencing.
6. Complete all remaining proposed permanent vegetation planting, per the plans and project specifications.
7. Remove and dispose of all trash, metal, and debris from the site according to local, state and federal regulations.