20200941 Ver 1_#1 email External RE Albemarle Corp DWR #20-0941_20210302

From: Jim Mason
To: Johnson, Alan
Cc: Roden Reynolds, Bryan K CIV (US); Perez, Douglas J; ktunnellalbemarlenc.gov
Subject: [External] RE: Albemarle Corp. DWR #20-0941
Date: Tuesday, March 2, 2021 2:26:22 PM
Attachments: imaae001.onq
GRADING MARKUP TO THREE OAKS.pdf
NCWRC Comments -SAW-2018-00566 - Albemarle Corporate Center Three Oaks Responses.pdf
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Alan —
Below in red are responses to your comments/questions. I have also attached a copy of NCWRC's
comments with our responses, which I will also provide to NCWRC in a separate email.
Bryan- There are a couple of questions/comments that we would like your input on before any
action is taken (noted below).
Please let me know if you have any questions.
Thanks and have a great day,
Jim
From: Johnson, Alan <[e-mail]>
Sent: Monday, February 22, 2021 11:46 AM
To: Jim Mason <[e-mail]>
Cc: Roden Reynolds, Bryan K CIV (US) <[e-mail]>; Perez, Douglas J
<[e-mail]>; [e-mail]
Subject: Albemarle Corp. DWR #20-0941
This is my understanding of the project regarding the road crossings:
4 road crossings Correct
Stream (total impact 293 ft of stream????)
There is a total of 263 linear feet of permanent impact, 233 of which is permanent fill and 30
of which is countersunk riprap and no loss of WOUS (per USACE). Per our latest
correspondence with Amy Chapman, the State does NOT consider the countersunk pads as
permanent "loss of water of State". Below is the site -by -site breakdown of each site. Since the
permanent stream impacts outside of the pond area (which will be handled with on -site
mitigation) are below 300 linear feet of impacts on perennial streams even with the
countersunk riprap (263 with, 233 without), would these impacts require mitigation, since the
pond/stream restoration is taking care of the impacts at the pond site?

From the environmental impact diagrams
1. 93 ft of permanent (culvert and riprap) 118 of temp of temp 83 P (73 fill, 10
countersunk RR), 118 T
2. 91 ft of permanent (culvert and riprap) w/ dual 60" pipes) 160 ft of temp 81 P (71 fill,
10 countersunk RR), 130 T (other 30 is another site)
3. 109 ft of permanent (culvert and riprap) 43 ft of temp 99 P (89 fill, 10 countersunk RR),
43 T
From the table:
4. SE: 83 permanent (148 ft of temp) 83 P, 118 T, other 30 T is from different site
5. SA: 81 permanent (160 ft of temp) 81 P, 130 T, other 30 T is from different site
6. SL: 10 = 99 permanent (73 ft of temp) 99 P, 43 T, other 30 T is from different site
Pond
1. In my opinion this would be a stream impact, not pond fill. The pond is fed by the
stream. So the pipe extension on the up and downstream end of the existing pipe
should be included stream impact.
Are you only referring to the pipe extensions when you are referring to the pond impacts or
the entire pond drainages? For either, although the ponds are fed by a stream, their current
state is open water. With the pipe extensions going into open water, we acknowledge that
they are occurring in a jurisdictional feature, but an open water feature rather than a stream
at the point of impact. We also do not know how to calculate a linear stream impact at the
pipe extension locations because there is no discrete flow within a thalweg that is confined
within streambanks (the existing pipe connects pond to pond). The pipe extension would go in
the area of pond impact and not be considered as part of the future stream restoration
(although the extensions are important during that phase as well, since they will ensure that
there is proper pipe burial to encourage future stream flow and wildlife passage). We would
also have to reduce the open water impacts, but are unsure of how that would be possible
since the pipe will not be going in until the open water is removed; we also could not count
both a stream and an open water impact at the same location since it would be a double
impact on the location. Additionally, our designation of this as an open water impact here is
consistent to how we have seen this permitted on other projects we have worked on,
including NCDOT projects.
If we were to consider this a stream impact, would it be able to be offset by the stream
restoration being performed around it (considering that it would be a straight linear impact
and the anticipated sinuosity of the restored stream up and downstream of the pipe will likely
result in more linear restoration of stream than the straight linear distance from the top of the
upstream pond to the bottom of the downstream pond [thereby covering the pipe impacts]).
We feel confident that the open water impact is appropriate here. However, we would like to

get Bryan's input on this to make sure that we are consistent on our impacts for both
agencies.
The table impacts do not match the impacts in the environmental impact site diagram sheets
I have reviewed the impacts on both resources and they do match. The way the impacts can
be shown on the PCN form is constrained by the fact that an applicant cannot add their own
site numbers to match their permit drawings (I can only use the Si, S2, S3, etc. that the form
allows). Therefore, the impacts I entered into the PCN table are in the same order as those on
the environmental impact summary on the first page of the environmental impacts package;
however, they have different site nos. due to the PCN constraints, which may cause confusion.
It also appears you have excess excavation/matting (temporary impacts) beyond the culvert
installation and also matting. I am not sure if this is to handle the elevation change in the
culvert installation and you are grading down the channel or what. Maybe a plunge pool at
the outlet would be better.
We have attached a markup of the grading plan. Is this the type of matting/impact you are
referring to? If so, there is no "excess" excavation within the stream, but during installation of
the culvert there is likely to be some temporary impacts along the streambank upstream and
downstream of the pipe. Installing a temporary erosion control measure was determined to
be a reasonable mitigation strategy to prevent erosion. This strategy has been included since
during our original application submittal and in fact, on all of our permit submittals.
Plunge pools at the outlets were not pursued because they would impede upstream aquatic
wildlife passage.
The road network shows no SW bmps. The entire site will be subject to stormwater
management, including the access roads, unless you are proposing low impact measures, such
as enhanced grassed swales, no curb/gutter which also must be approved. How is SW being
handled
• Chambers and the City are proposing low density requirements for the project. The
roadway satisfies these requirements with the 32 permanent vegetated swales along the
roadway (labeled VS-## on the GEC sheets; included in the permit application on the grading
and erosion control plan). There is no curb and gutter along the roadway. Therefore, all
runoff from the roadway is conveyed via vegetated swales or sheet flows over vegetated
areas.
• Where low density control measures cannot be met for future development,
stormwater BMPs will be required. These requirements will be enforced by the city.

The sewer line will have a construction corridor, it will then have a maintained corridor. The
construction corridor is usually considered the temporary impact and is listed separately from
the maintained corridor which is typically considered permanent (a conversion)
The way that the impacts are shown for these impacts is consistent with how we have seen
them depicted on other projects in the past. I do understand the concern that the wetland is
being converted vegetatively, but the plan is to temporarily excavate the wetland soil and not
compact the area with the anticipation that hydrology will remain and the area will continue
to function as a wetland once the soil is replaced, even within the maintained corridor, and
hydrophytic vegetation would remain prevalent in those areas. Based on NCWAM
considerations, the impacted wetland areas would still be considered a modified version of
their current NCWAM wetland type since only a portion of the wetland will be modified, but
the remainder would remain unchanged/revert to its former vegetative composition.
We would also like Bryan's input on this before we consider any changes being made to
wetland impacts. We have not received any requests to change these impacts for this project
and they have been presented this way since the initial July 2020 submission.
Based on my calculation, the DMS mitigation may be slightly off.
This will depend on how the above items are addressed. We can definitely request a revision
to the DMS letter if required. However, we would like to wait until we know what the final
mitigation requirements will be for both agencies before we request a revision from DMS.
I don't have a big issue with the stream restoration as far as approving on paper, but no work
is initiated without sign off by DWR prior to construction/initiation. If not for mitigation,
primary concern will be stability and qualitative observation. Some monitoring will be
required to ensure the restoration takes.
Comment noted. We definitely understand that all work associated with the restoration will
be reviewed and approved by NCDWR and USACE prior to proceeding. We understand that
the plan we submitted is preliminary in nature and will require coordination with both
agencies to complete a successful restoration. We also have anticipated that there will be
conditions associated with the restoration included in both agency's permits.
I hope I am clear as to my comments. And I hope I read the information
correctly. It is a Monday.
Thanks
Alan J

Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: [phone] Fax: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records
Law and may be disclosed to third parties unless the content is exempt by statute or other regulation.

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NARRATIVE: / /I I
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The proposed project is for the construction of a new roadway and supporting / / / / / / ;III
infrastructure. This project is located off South Business 52, Albemarle, Stanly / / / / / I I
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County, NC. Total disturbed area for this project is 37.66 acres. The scope of / I I
work includes installation of erosion control measures, clearing, grading, construction I / I I I I I
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MAINTENANCE PLAN:
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The following maintenance plan shall be followed until the site is completely stabilized after construction. During _ _ - - // -' _ - - \ �� S) - - / - - -
construction the Contractor shall be responsible for inspection and maintenance of all erosion and sediment control - / 7 - --
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1. A log must be kept for the site documenting each rainfall event and measures taken to repair or replace any / / 7 7 \ 1 / ,� Mq T h,
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damaged erosion control measures. All NPDES rules shall apply. - // / 7 / - ^ \ \ \ \ \ \ ` 1 /
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2. All erosion control measures shall be checked for stability and operation following any rainfall producing runoff and at - - i / / \ c EFT --
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elevation. Washed stone shall be cleaned or replaced when the sediment pool no longer drains properly. / / / SEDIMENT TRAP ST-7, N `__ 5/�
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replaced. They must be removed when deposits reach approx. half the height of the barrier. Any sediment deposits / / TOP OF DAM ELEV: 567.00' - ,558
remaining in place after the sediment fence is removed shall be dressed to conform to the existing grade, prepared - / 1
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representative of the NC DEQ Mooresville Regional Office Land Quality Section has approved their removal. -,
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' a site regulated under the Mining Act of 1971, or a landfill regulated by the Division of Solid Waste Management. \ /
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Resources rules and regulations. _ / // INV:545.50
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2. Flag the work limits to prevent unnecessary clearing. \ \ \ \ \ - _ - - - - / /
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Notify NCDEQ 48 hours prior to meeting. \ \ \ N ` _ - ��' / / / - / 7 - '
4. Clear enough vegetation to install perimeter erosion control measures. \ \ \ \ / / / / - - -
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basins shall be stabilized immediatelyafter construction. Construct all remaining\ N \ \ _ - �' - / SLOPE MATTING 1 /
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8. Grade and fill areas to proposed grades shown. Contractor shall not disturb more \ \ \ \ - - - - - / / SILT FENCE, TYP AS / 1
area than necessary. Install slope matting as shown on plans. Seed slopes in \ \ ` - - / / / SHOWN. REF. DETAIL
accordance with seedingdetails. - - - 7 /7 7
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9. Provide groundcover on exposed slopes as indicated on the Soil Stabilization Table \ / i
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shown on the details sheets following completion of any phase of grading. \ \ -- /' 7 7 7
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established on all disturbed areas and followin NCDEQ a royal. f / yI56
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SELF -INSPECTION NOTE: / / / _ _ //l //o
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of the area covered by the plan after each phase of the plan has been - - - - / - / /// / I
and after establishment of temporary ground cover in accordance with G.S. -' / / 7 --'///
The GC shall, on behalf of the landowner financial) res onsible art erform an / - / i "�,tl
113A-57(2). The person who performs the inspection shall maintain and make available \ - � '/ / / /
record of the inspection at the site of the land -disturbing activity. The record shall \ - - - _ - ' -' i7/ /%// /�///11
set out any significant deviation from the approved erosion control plan, identify any \ - - / / / / / 1
measures that may be required to correct the deviation, and document the completion \ - - - ' - - - - - - / / / / / /
those measures. The record shall be maintained until ermanent round cover has'/ / % // //// 1
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been established as required by the approved erosion and sediment control plan. The / / / / / / / / / / I
self -inspections required are in addition to inspections required by local and/or regional - - \ / / / / / u�
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DESIGNED BY: DATE:
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SUBMITTED BY: CONTRACT NO.:
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PLOT SCALE: PLOT DATE: PROJECT NUMBER:
AS NOTED 28—Sep-20 2018-1170
SIZE: FILE NAME:
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North Carolina Wildlife Resources Commission
Cameron Ingram, Executive Director
22 February 2021
Mr. James Mason
Three Oaks Engineering
324 Blackwell Street, Suite 1200
Durham, North Carolina 27701
SUBJECT: Pre -Construction Notification for the Albemarle Corporate Center in Albemarle, Stanly
County, North Carolina. USACE Action ID: SAW-2018-00566; DEQ No. 20200941.
Dear Mr. Mason,
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the subject
document. Comments are provided in accordance with provisions of the Clean Water Act of 1977 (as
amended) and Fish and Wildlife Coordination Act Wildlife Coordination Act (48 Stat. 401, as amended;
16 U.S.C. 661 et seq.).
On behalf of the City of Albemarle and Chambers Engineering, Three Oaks Engineering has submitted a
Pre -Construction Notification (PCN) application for the Albemarle Corporate Center located west of
Groves Street, south of the terminus of Leonard Avenue, and east-northeast of Highway 52 Business in
the City of Albemarle, Stanly County, North Carolina. The 283-acre site consists of agricultural fields
and wooded bottomlands.
Poplin Branch and its unnamed tributaries flow through the site. Poplin Branch in the Yadkin Pee -Dee
River basin is classified as a Class C stream by the NC Division of Water Resources. The applicant
requests to permanently impact 263 linear feet Of) of streams, 0.084 acre (ac) of wetlands, and 1.13 ac of
ponds. The project would temporarily impact 471 if of streams and 0.043 ac of wetlands. The ponds will
be drained to restore Poplin Branch.
We have records of the federally endangered Schweinitz's sunflower (Helianthus schweinitzii); federal
candidate and state threatened Georgia aster (Symphyotrichum georgianum); and state significantly rare
tricolored bat (Perimyotis subflavus) near the site. Records of state -listed plants include the endangered
western rough goldenrod (Solidago radula); threatened thick -pod white wild indigo (Baptisia alba), glade
milkvine (Matelea decipiens), ravine sedge (Carex impressinervia), ringed witch grass (Dichanthelium
annulum), prairie dock (Silphium terebinthinaceum), and Seneca snakeroot (Polygala senega). The lack of
records from the site does not imply or confirm the absence of federal or state -listed species. An on -site
survey is the only means to determine if the proposed project may impact federal or state rare, threatened, or
endangered species.
Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]

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22 February 2021
Albemarle Corporate Center
USACE Action ID: SAW-2018-00566
Consider the following changes to the design of the development to minimize or avoid impacts to surface
waters.
1. We recommend impacts to wetlands and streams be further minimized. It also appears to be a
culvert or ford located along Stream SE; consider routing Leonard Avenue at this culvert location
since it is already partially impacted. Consider moving the sewer line slightly to avoid or further
minimize temporary impacts (i.e., see Environmental Impacts dated 9.28.20 Sheets 4, 6, 12, and
13).
2. Impacts could be lessened by having the sewer line cross Stream SE at the location of the road
(see Environmental Impacts dated 9.28.20 Sheet 7). In general, all utility crossings should be
kept to a minimum, which includes careful routing design and the combination of utility crossings
into the same right-of-way (provided there is not a safety issue).
3. The directional bore stream crossing method should be used for utility crossings wherever
practicable, and the open cut stream crossing method should only be used when water level is low
and stream flow is minimal. Manholes or similar access structures should not be allowed within
buffer areas. Stream crossings should be near perpendicular (75° to 105°) to stream flow.
4. We recommend using a bridge for road crossings or using stream simulation design to install a
bottomless culvert where footers are positioned outside the bankfull and storm surge.
Should the permit be issued, we offer the following recommendations to minimize impacts to aquatic and
terrestrial wildlife resources:
5. During the draining of the pond, we are pleased to see that a screen will prevent fish and wildlife
from entering the receiving waters. We recommend a slow drawdown of the pond, preferably
outside the brumation period for turtles (i.e., summer). Since fish should not be released from the
pond and fish cannot be relocated to another pond, we recommend a pond/lake management
company be contacted to remove the fish appropriately. Ensure no invasive or nuisance aquatic
species, including plants, are released downstream.
6. In the restoration of Poplin Branch, we recommend using state-of-the-art natural channel design
and restoration techniques. We prefer natural materials such as coir fiber rolls, biodegradable
erosion -control blankets, and vegetation instead of rip rap. NCWRC would like to review the
final planting plan; however, we recommend minimal amounts of red maple, tulip poplar, and
sweetgum since they are pioneer species and less than 5% green ash. We recommend looking at
reference sites and community types for a more diverse planting list, but we suggest including
oaks and hickories.
7. Sewer lines should be kept out of riparian buffer areas. We recommend a minimum 100-foot
setback for perennial streams and a 50-foot setback for intermittent streams and wetlands.
8. Incorporate the following elements into erosion and sediment control plans- minimize clearing
and grading, protect waterways, phase construction for larger construction sites (>25 acres),
stabilize soils as rapidly as possible (<2 weeks), protect steep slopes, establish appropriate
perimeter controls, employ advanced settling devices, implement a certified contractors program,
and regularly inspect erosion control measures. Ensure all silt fencing is removed once
vegetation has reestablished and soils have stabilized.
9. If any underground mines, shafts, or mine -like features occur onsite, please contact me or
Katherine Etchison at [phone] to ensure bats are excluded prior to any disturbance.
10. Disturbed stream banks and wetlands should be restored to original contours and re -vegetated
with native plant materials. Riprap may be used to stabilize the bank in the area of the ordinary
high-water stage and vegetation (bioengineering) should be used above this stage. Riprap should
not be placed on the streambed.

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22 February 2021
Albemarle Corporate Center
USACE Action ID: SAW-2018-00566
11. Although the development will be low density, we recommend stormwater control devices
particularly with the increase in frequency and intensity of rainfall events. Limit impervious
surface to less than 10% or use stormwater control measures to mimic the hydrograph consistent
with an impervious coverage of less than 10%. Where feasible, trees and shrubs should be
planted around stormwater ponds. This would provide habitat benefits that offset those functions
lost by development, partially restore aquatic habitats, reduce exposure of the water surface to
sunlight to minimize thermal pollution, and provide essential summer and winter habitats.
12. Use Low Impact Development (LID) technology and native plants in landscaping. Using LID
technology in landscaping will not only help maintain the predevelopment hydrologic regime, but
also enhance the aesthetic and habitat value of the site. LID techniques include permeable
pavement and bioretention areas that can collect stormwater from driveways and parking areas.
Additional alternatives include narrower roads, swales versus curbs/gutters and permeable
surfaces such as turf stone, brick, and cobblestone. Compared to conventional developments,
implementing appropriate LID techniques can be more cost-effective, increase property values,
provide space -saving advantages, reduce runoff, and protect water quality (Roseen et al. 2011).
Also, additional information on LID can be found at the NC State University LID guide:
http://www.onsiteconsortium.org/npsdeal/NC LID Guidebook.pdf.
13. Disturbed areas should be re -seeded with seed mixtures that are beneficial to wildlife. Avoid
fescue -based mixtures (i.e, tall fescue) and lespedeza as these species are non-native and/or
invasive. Native, annual small grains appropriate for the season are preferred and recommended.
For landscaping, we recommend native shrubs, grasses, and wildflower mixes. Avoid using
invasive and/or non-native plants in seed mixtures or landscaping plants, such nandina and privet
(http://www.ncwildflower.org/plantgalleries/invasiveslist).
14. Sediment and erosion control measures should be installed prior to any land -disturbing activity.
The use of biodegradable and wildlife -friendly sediment and erosion control devices is strongly
recommended. Silt fencing, fiber rolls and/or other products should have loose -weave netting
that is made of natural fiber materials with movable joints between the vertical and horizontal
twines. Silt fencing that has been reinforced with plastic or metal mesh should be avoided as it
impedes the movement of terrestrial wildlife species. Excessive silt and sediment loads can have
detrimental effects on aquatic resources including destruction of spawning habitat, suffocation of
eggs, and clogging of gills.
We encourage each of the local governments to consider integrating additional measures to address the
secondary and cumulative impacts of development on water quality and aquatic and terrestrial wildlife
habitat before degradation of area streams occurs. Adopting ordinances that protect wide forested
riparian corridors and the 100-year floodplain and that adequately treat stormwater in development areas
in and outside of water supply areas are essential to protect water quality and aquatic habitat in
developing landscapes. Measures to address the issues of development can be found in NCWRC's
Guidance Memorandum to Address and Mitigate Secondary and Cumulative Impacts to Aquatic and
Terrestrial Wildlife Resources and Water Quality (August 2002;
http://www.ncwildlife.org/Portals/0/Conserving/documents/2002 GuidanceMemorandumforSecondaryan
dCumulativelmpacts.pdf).
We recommend the City of Albemarle consider green planning, which allows for growth while
conserving wildlife and natural resources. The NCWRC Green Growth Toolbox program provides
technical guidance, habitat conservation recommendations, and datasets to assist communities in green
planning (http://www.ncwildlife.org/Conserving/Programs/GreenGrowthToolbox.aspx).
Thank you for the opportunity to provide input for this project. If I can provide further assistance, please
call [phone] or email [e-mail].

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22 February 2021
Albemarle Corporate Center
USACE Action ID: SAW-2018-00566
Sincerely,
C.)
Olivia Munzer
Western Piedmont Habitat Conservation Coordinator
Habitat Conservation Program
Literature Cited
Roseen, R. M., T. V. Janeski, J. J. Houle, M. H. Simpson, and J. Gunderson. 2011. Forging the Link:
Linking the Economic Benefits of Low Impact Development and Community Decisions. Available at:
https://owl.cwp.org/mdocs-posts/roseen-et-a1-2011-forging-the-link/.
ec: Bryan Roden -Reynolds, U.S. Army Corps of Engineers
Alan Johnson, N.C. Division of Water Resources
Byron Hamstead, U.S. Fish and Wildlife Service
Michael Ferris, City of Albemarle
Katherine Etchison, NCWRC