20211837 Ver 1_More Info Received_20220330

Moore, Andrew W
From: Jennifer Robertson <[e-mail]>
Sent: Wednesday, March 30, 2022 8:53 AM
To: Moore, Andrew W
Cc: Anderson, Mitchell L; Leslie, Andrea J; Brown, David W CIV USARMY CESAW (USA); Jesse Hanlin
Subject: RE: [External] RE: Request for Additional Information - DWR 21-1837, The Cottages at Roper Farm
(Banner Farm Road)
Attachments: 20002_DOCUSIGN-Rev7_Sheet_C-10_NCDEQ_Comments.pdf; 20002 Stream Exhibit 2022-03-29.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Andrew,
Following up from our phone conversation this past Friday attached is a revised plan set. The flared ends on
the driveway culverts have been removed. The driveway culverts have also been upsized to 30" to make sure
they are buried 6" to allow for streambed materials to re-establish in the culverts. The second attachment is
the illustration we discussed to show how shared driveways are not practical. Four lots require driveway
stream crossings. Additional stream impacts have been avoided by not culverting or relocating the entire
reach of stream on these lots. A shared driveway is not attractive for buyers. If there are disputes among
neighbors having a shared utility creates a major problem. As I described last week these driveways would
need to have 90 degree turns just after the stream crossing which is also not practical. A shared driveway
would also interfere with the turnarounds at each house. No one wants their turnaround in front of their house.
The developer wants to move the houses on lots 30 and 31 closer to the road to make the driveways shorter
which would create an even sharper 90 degree turn necessary for a shared driveway. A shared driveway at
lots 31 and 32 would also create more disturbance within the stream buffer as opposed to two perpendicular
disturbances for the two driveway crossings. Please let me know if we need to discuss the shared driveway
crossings in more detail. Thanks!
Thank you,
Jennifer L Robertson, President
ATLAS Environmental, Inc.
338 S. Sharon Amity Road #411
Charlotte, NC 28211
[phone] office
[phone] mobile
www.atlasenvi.com
Offices in Asheville and Charlotte
I►• IRONMENTAL
From: Moore, Andrew W <[e-mail]>
Sent: Friday, February 25, 2022 3:31 PM
To: Jennifer Robertson <[e-mail]>
Cc: Anderson, Mitchell L <[e-mail]>; Leslie, Andrea J <[e-mail]>; Brown,
David W CIV USARMY CESAW (USA) <[e-mail]>; Jesse Hanlin <[e-mail]>
1

Subject: RE: [External] RE: Request for Additional Information - DWR 21-1837, The Cottages at Roper Farm (Banner Farm
Road)
Jennifer,
On December 20, 2021, the Division of Water Resources (Division) received your application requesting a 401 Water
Quality Certification from the Division for the subject project. Additional information in support of the project was
received February 16, 2022. The Division has determined that your application is incomplete and cannot be processed.
The application is on -hold until all of the following information is received:
1. Please be aware that deed notifications or other legal language that clearly indicates to future owners that there
are jurisdictional features and that some lots may not be buildable as planned, or at all, without impacts that
may not be approved by the regulatory agencies will be a condition of the 401 Water Quality Certification. If you
have questions or concerns regarding this matter, please contact me at the number or email below. [15A NCAC
02H .0502]
2. The Division reviewed the On -Site Soil and Site Evaluation report prepared by Mountain Soils, Incorporated. The
report notes two soil units on the site as potential areas of wastewater disposal. However, no map was provided
with the report depicting the location of the soil units so the Division is unable to determine if the noted soil
units are found within the areas depicted as septic field area and potential septic field area on the Overall Site
Layout Plan (Sheet C-5). As noted in the report, surface waters require a 50-foot setback distance for tanks and
drainfields, which limits the area available for septic facilities in the area depicted as septic field area. As the
area noted as the septic field area is bound by streams and wetlands, it is still unclear if this area is adequate to
assimilate the wastewater from the proposed development. The Division cannot make a determination that
impacts have been avoided and minimized if it is unclear if the proposed development layout is feasible. Please
provide additional information that demonstrates the noted septic area will be adequate to assimilate the waste
from all 32 homes. [15A NCAC 02H .0506(b)(1)]
3. It is unclear how wastewater would be conveyed to the area noted as potential septic field area on Sheet C-5
without additional stream and wetland impacts and/or some type of pump system. Please provide a plan
depicting how wastewater will be conveyed to both septic field areas. Include any pump/lift stations that may
be required. [15A NCAC 02H .0502(a)(9)]
4. Stream crossings #1 and #2 involve double reinforced concrete pipe. As multiple pipes are proposed, they
should be designed to mimic the natural stream cross section as closely as possible including pipes at floodplain
elevation, construction of floodplain benches, and/or sills where appropriate. Widening the stream channel
should be avoided. Stream channel widening at the inlet or outlet end of structures typically decreases water
velocity causing sediment deposition that requires increased maintenance and disrupts aquatic life passage.
Please provide construction details for stream crossings #1 and #2 depicting the culvert cross -sections including
details regarding the heights at which each culvert inlet and outlet will be set as well as construction of these
benches. [15A NCAC 02H .0506(b)(3)]
5. The proposed lot layout requires four separate culverted crossings of a single stream. Please provide more
details regarding avoidance and minimization of impacts S3, S4, S5, and S6. This should include alternative
designs and layouts of the lots in this area of stream CH 2O0. [15A NCAC 02H .0506(b)(1)]
6. It appears that stream impact S7 could be avoided by providing a maintenance access road for the septic on the
north side of lot 4 rather than the south side. Please revise the plans to avoid the impact or provide a detailed
explanation of why this plan for the activity cannot be practically reconfigured. [15A NCAC 02H .0506(b)(1)]
2

7. No engineering plan, profile view, or cross-section was provided for stream impacts S3, S4, S5, S6, or S7. Please
provide a cross-section for these culverts showing the proposed burial depth. In addition, why is 30 feet of
impact needed for stream crossings to lots 30, 31, 32 and for the maintenance access road and 25 feet needed
to lot 29 when typical driveway crossings and maintenance road crossings can be achieved with a 20-foot culvert
at sites with similar relief? It appears that these impacts could be minimized, particularly considering the two-
way site roads within the development are only 20 feet wide. [15A NCAC 02H .0506(b)(1)]
Pursuant to Title 15A NCAC 02H .0502(e), the applicant shall furnish all of the above requested information for the
proper consideration of the application. Please respond in writing within 30 calendar days. If all of the requested
information is not received within 30 calendar days of receipt of this letter, the Division will be unable to approve the
application and it will be denied as incomplete. The denial of this project will necessitate reapplication to the Division
for approval, including a complete application package and the appropriate fee. Please be aware that you have no
authorization under the Section 401 of the Clean Water Act for this activity and any work done within waters of the
state may be a violation of North Carolina General Statutes and Administrative Code.
Feel free to contact me if you have any questions.
Andrew W. Moore, PG
Environmental Specialist II — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4684 office
email: Andrew.W.Moore(ancdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Jennifer Robertson <[e-mail]>
Sent: Wednesday, February 16, 2022 1:37 PM
To: Anderson, Mitchell L <[e-mail]>
Cc: Moore, Andrew W <[e-mail]>; Leslie, Andrea J <[e-mail]>; Brown, David
W CIV USARMY CESAW (USA) <[e-mail]>; Jesse Hanlin <[e-mail]>
Subject: [External] RE: Request for Additional Information - DWR 21-1837, The Cottages at Roper Farm (Banner Farm
Road)
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Mitchell,
Attached are the construction plans, soils report, revised impact exhibit, and revised PCN. Jesse does not
think that the sewer permit has been issued yet (the developer is handling that) however the attached soils
report findings support 32 3-4 bedroom homes. The post construction stormwater plans have been reviewed
by Mills River and they only had minor comments including requiring copies of the stream crossing
approvals. Mills River will approve the plan once the 404 and 401 are obtained.
Please let me know if you need anything else.
3

Thank you,
Jennifer L Robertson, President
ATLAS Environmental, Inc.
338 S. Sharon Amity Road #411
Charlotte, NC 28211
[phone] office
[phone] mobile
www.atlasenvi.com
Offices in Asheville and Charlotte
From: Anderson, Mitchell L <[e-mail]>
Sent: Tuesday, February 15, 2022 4:47 PM
To: Jennifer Robertson <[e-mail]>
Cc: Moore, Andrew W <[e-mail]>; Leslie, Andrea J <[e-mail]>; Brown, David
W CIV USARMY CESAW (USA) <[e-mail]>
Subject: Request for Additional Information - DWR 21-1837, The Cottages at Roper Farm (Banner Farm Road)
Hello Ms. Robertson,
I regret not getting this request to you sooner. Your application was mistakenly forwarded to the wrong reginal office.
However, this application has recently been received in the correct regional office and is currently under review. Please
see the request for additional information below.
On December 20, 2021, the Division of Water Resources (Division) received your application requesting a 401 Water
Quality Certification from the Division for the subject project. The Division has determined that your application is
incomplete and cannot be processed. The application is on -hold until all of the following information is received:
1. Have the septic field area and potential septic field areas been permitted to accept wastewater from all the
residences within the development? [15A NCAC 02H .0502(a)]
2. The development is within a Phase II and water supply watershed. Therefore, a review of post -construction
stormwater management should be reviewed by the local water supply watershed coordinator, regardless of
the percentage of built upon area. Please confirm with Henderson County that they will be reviewing the post -
construction stormwater plan for the development. [15A NCAC 02H .0506(b)(1)]
3. Please provide a detailed engineering plan, profile view, and cross-section of all proposed culverts. These
drawings must include details regarding stream alignment in relation to pipe alignment, pipe slope, pipe burial,
and dissipater pad. Culverts must be placed below the elevation of the stream bed by one foot for all culverts
with a diameter greater than 48 inches and 20 percent of the culvert diameter for culverts having a diameter
less than 48 inches. [15A NCAC 02H .0502(a)(9)]
4. All work in or adjacent to streams shall be conducted so that the flowing stream does not come in contact with
the disturbed area. Therefore, dewatering methods will be necessary to temporarily dewater the stream
channel during pipe installation. Please provide a construction sequence that details the method of dewatering
4

to be utilized at the site and the sequence of construction events to be followed to ensure compliance with this
condition. In addition, please ensure that the location of the temporary impacts are shown on the construction
drawings and clearly indicated in the revised impact table. [15A NCAC 02H .0506(b)(3) and (c)(3)]
Pursuant to Title 15A NCAC 02H .0502(e), the applicant shall furnish all of the above requested information for the
proper consideration of the application. Please respond in writing within 30 calendar days. If all of the requested
information is not received within 30 calendar days of receipt of this letter, the Division will be unable to approve the
application and it will be denied as incomplete. The denial of this project will necessitate reapplication to the Division
for approval, including a complete application package and the appropriate fee.
Please be aware that you have no authorization under the Section 401 of the Clean Water Act for this activity and any
work done within waters of the state may be a violation of North Carolina General Statutes and Administrative Code.
Thank you,
Mitchell Anderson
Environmental Specialist — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
828-296-4662 office
mitchel I.anderson(a�ncdenr.gov
1-'U
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
5

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© COPYRIGHT 2021 BY BLUE RIDGE
ENGINEERING PLLC, NC LICENSE #P-0205, ALL
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DocuSign Envelope ID: 9A9C885C-9A48-459B-B65F-7DC500E02EBC
STORM DRAINAGE NOTES
1. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SAFETY, METHODS,
MEANS, PROCEDURES AND SEQUENCES OF ITS OPERATIONS.
CONTRACTOR SHALL PROVIDE ADEQUATE TRAFFIC CONTROL FOR ITS
OPERATIONS.
2. THE LOCATION OF UTILITIES SHOWN ON THE PLANS SHALL BE
CONSIDERED APPROXIMATE. ALL UTILITIES MAY NOT BE SHOWN. IT
SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE
EXISTENCE AND ACTUAL LOCATION OF ALL EXISTING UTILITY LINES
WHETHER SHOWN ON THE PLANS OR NOT. CONTRACTOR SHALL
CONTACT ULOCO.
3. BLUE RIDGE ENGINEERING SHALL PROVIDE ALL CONSTRUCTION LAYOUT
AND STAKING REQUIRED FOR THE PROJECT. THE CONTRACTOR SHALL BE
RESPONSIBLE FOR PAYING FOR CONSTRUCTION LAYOUT AND STAKING
SERVICES PROVIDED. CONTRACTOR SHALL PROVIDE BLUE RIDGE
ENGINEERING 48 HOURS NOTICE FOR ANY STAKING REQUESTED.
4. DURING STORM DRAIN PIPING INSTALLATION, PIPE ENDS SHALL BE
PROTECTED OVERNIGHT WITH FILTER FABRIC, WASHED STONE, OR
OTHER APPROPRIATE MEASURES TO PREVENT SEDIMENT FROM
ENTERING THE STORM DRAINAGE SYSTEM SHOULD A RAINFALL EVENT
OCCUR.
5. ALL BACKFILL IN UTILITY TRENCHES SHALL BE TESTED. ALL BACKFILL
SHALL BE PLACED AND COMPACTED IN ACCORDANCE WITH THE
GEOTECHNICAL REPORT. DRYING OR WETTING OF FILL MATERIAL MAY
BE REQUIRED TO COMPLY WITH MOISTURE LIMITS SPECIFIED. IF NO
GEOTECHNICAL STUDY HAS BEEN PERFORMED, ALL EARTHWORK
PLACED SHALL BE WITHIN 5% OF OPTIMUM MOISTURE AND
COMPACTED TO AT LEAST 95% OF THE STANDARD PROCTOR.
6. ALL WORK IS SUBJECT TO INSPECTION OF THE OWNER, ENGINEER AND
AUTHORITIES HAVING JURISDICTION. THE OWNER SHALL PAY FOR ALL
QU
210
209
208
207
5+00
7. ALL DRAINAGE STRUCTURES SHALL BE PRE -CAST AND SHALL CONFORM
TO NCDOT STANDARD #840 UNLESS OTHERWISE APPROVED BY THE
ENGINEER . ALL DRAINAGE STRUCTURES AND PIPING SHALL BE
DESIGNED FOR HEAVY DUTY TRAFFIC LOADING.
8. ALL STORM DRAIN BOX INVERTS SHALL BE GROUTED OR FILLED WITH
CONCRETE SO THAT THERE IS NO SUMP WITH STANDING WATER UPON
COMPLETION.
9. WHERE PIPE CONNECTIONS ARE MADE AT BOXES, VOID SPACES SHALL
BE GROUTED SOLID WITH MINIMUM 6" MASONRY/GROUT.
10. ALL STORM DRAINAGE PIPE SHALL BE ADS HP STORM GRAY
POLYPROPYLENE (ADS HP STORM) PER ASTM F2881 WITH WATERTIGHT
JOINTS. INSTALLATION AND FILL HEIGHTS SHALL CONFORM TO
MANUFACTURER'S GUIDELINES AND ASTM D2321. SEE HP STORM
INSTALLATION GUIDE STD 1301B. REINFORCED CONCRETE PIPE, CLASS
III, MAY BE SUBSTITUTED WITH DESIGN ENGINEER'S APPROVAL. ANY
OTHER SUBSTITUTIONS SHALL BE APPROVED BY THE DESIGN ENGINEER.
STORM DRAINAGE BOXES AND GRATES MAY BE REUSED IF FOUND TO BE
SUITABLE BY THE ENGINEER, UNLESS OTHERWISE NOTED.
11. CONCRETE ANCHOR FOOTINGS SHALL BE INSTALLED ON ALL STORM
DRAINAGE PIPING EXCEEDING 20% SLOPE.
12. ALL CATCH BASIN FRAMES, GRATES, AND HOODS SHALL CONFORM TO
NCDOT STANDARD #840.03, TYPE E, UNLESS OTHERWISE NOTED. ALL
JUNCTION BOX MANHOLE FRAMES AND COVERS SHALL CONFORM TO
NCDOT STANDARD #840.54, UNLESS OTHERWISE NOTED. ALL PIPE
PLUGS SHALL CONFORM TO NCDOT STANDARD #840.71, UNLESS
OTHERWISE NOTED.
HEADWALL D2 SEE
NCDOT DETAIL 838.40
2100
2090
/X46. CMP ARCH PIPE
20% OF END OF PIPE 74LF @ 5.58%
PROPOSED GRADE
V
CB-2E
BC:2097.22
INV.IN:2087.84 SW
INV.OUT:2087.84
_
CB-1E
IL
BC:2097.15
INV.IN:2087.59
INV.OUT:2087.39
SE
FES-E
I N V.:2084.98
0
_
15" RCP
0
24LF @ 1.00%
109LF @
8" RCP
2.23%
n
6+00
7+00
0 PROPOSED STORMWATER PROFILES
HORIZONTAL SCALE: 1" = 40'
VERTICAL SCALE: 1" = 10'
M
8+00 8+13
TO BE BURIED
110
100
090
080
070
30" HP -STORM
DRIVEWAY PIPE
STREAM IMPACT:
30 LF, 0.001 ACRES
2080
0+00
0
0
(l1
MAVRICK DRIVE
SEE DETAIL
EXISTING GRADE
M
O
2100
HEADWALL D1 SEE
NCDOT DETAIL 838.40
2090
2080
0+77
Stream Crossing #2
e-- HORIZONTAL SCALE: 1" = 40'
VERTICAL SCALE: 1" = 10'
20% OF END OF PIPE
TO BE BURIED
2100
HEADWALL B2 SEE
NCDOT DETAIL 838.40
20% OF END OF PIPE TO BE
BURIED, LIMITED TOPO IN
THIS AREA, CONTRACTOR
TO ENSURE ADEQUATE PIPE
SLOPE AS SHOWN
209
60"X46" CMP ARCH PIPEJ
2080 56LF @ 0.50% 2080
0+0UE DETAIL 0+58
Stream Crossing #1
2100
PROPOSED GRADE
HEADWALL B1 SEE
NCDOT DETAIL 838.40
2090
EXISTING GRADE
PROPOSED STREAM CROSSING PROFILES
FES-C
I N V.:2085.99
CB-1C
BC:2095.44
INV.IN:2086.13 SE
INV.OUT:2086.10
HW-D1
I N V.:2084.88
CDOT DETAIL 838.39
60' ' 46" CMP ARCH PIPE
74LF @ 5.58%
SEE DETAIL
HW-D2
I N V.:2089.00
SEE NCDOT DETAIL 838.39
CB-2C
BC:2095.44
INV.OUT:2086.25
WETLANDS TO REMAIN
UNDISTURBED
TURNAR UND AND
SH RED DRIVE
STREAM
SEE INSET
18" HP -STORM
109LF @ 2.23%
CB-1E
BC:2097.15
087.59 S
INV.OUT:2
15" HP -STORM
24LF @ 1.00%
CB-2E
BC:2097.22
INV.IN:2087.84 SW
INV.OUT:20:7.84
SED PIPE CROSSING,
STREAM IMPACT:
89LF, 0.006 ACRES
48" HP -STORM DRIVEWAY PIPE FOR
MAINTENANCE ACCESS TO SEPTIC
STREAM IMPACT: 3OLF, 0.002 ACRES
I
STREAM
STORMWATER INSET
30" HP -STORM DRIVEWAY/PIPE
STREAM IMPACT:
3OLF, 0.002 ACRES
/
i
0
/
WETLANDS TO REMAIN/
UNDISTURBED
STREAM EDGE
OF WATER
STREAM
/
/
20% OF END OF PIPE TO BE
BURIED, LIMITED TOPO IN
THIS AREA, CONTRACTOR
TO ENSURE ADEQUATE PIPE
SLOPE AS SHOWN
HW-B1
INV.:2083.22
SEE NCDOT DETAIL 838.40
WETLANDS TO BE
FILLED
HW-B2
I N V.:2083.50
SEE NCDOT DETAIL 838.40
-
WETLAND AREAS TO BE
FILLED 0.009 ACRES
PROPOSED PIPE
CROSSING,
STREAM IMPACT:
65LF, 0.006 ACRES
0
20
60"X46" CMP ARCH PIPE
56LF @ 0.50%
SEE DETAIL
M
40
0
0
PROPOSED GRADE AT
HEADWALL
EXISTING GRADE
2090
2080
0+00
2090
HEADWALL
60"X46" CMP ARCH PIPE
2080
0+34
TYP. MAVRICK DR. STREAM CROSS-SECTION
60
SCALE: 1" = 20'
OPEN SPACE
SCALE: NTS
PROPOSED GRADE
2102100
FILL
EXISTING GRADE
18" HP -STORM DRIVEWAY
CROSSING 2090
2090
0+00 0+12
TYP. DRIVEWAY STREAM CROSS-SECTION
WETLAND AREAS PER ATLAS
ENVIRONMENTAL, INC.
HW-A1
INV.:2093.27
SEE NCDOT DETAIL 838.80
CB-A4
BC:2101.62
INV.IN:2093.88 E
I NV.OUT:2093.78
SCALE: NTS
0 SCALE: NTS
*NOTE: DRIVEWAY CROSSING ON LOT 29 SHALL BE 25'
2100 2100
FILL
2090- 2090 30" HP -STORM
0+00 0+30 DRIVEWAY CROSSING,
PIPE TO BE BURIED 6"
TYP. DRIVEWAY PROFILE
2110
CB-A4
BC:2101.62
INV.IN:2093.88 E
INV.OUT:2093.78
2100
HEADWALL Al SEE
NCDOT DETAIL 838.80
24" HP -STORM
14LF @ 1.00%
PR
2110
POSED GRADE
24" P-STORM
24L @ 1.00%
2090
0+00
CB-A3
BC:2101.60
INV.IN:2093.54 E
I NV.OUT:2093.44
2100
HEADWALL A2 SEE
NCDOT DETAIL 838.80
- 24" HP -STORM
17LF @ 1.00%
2090
0+56
PROPOSED STORMWATER PROFILES
HORIZONTAL SCALE: 1" = 40'
VERTICAL SCALE: 1" = 10'
CB-A3
BC:2101.60
INV.IN:2093.54 E M
INV.OUT:2093.44
24" HP -STORM
14LF @ 1.00%
HW-A2
I N V.:2094.02
SEE NCDOT DETAIL 838.80
0
40
cc
cc
cc
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80
120
SCALE: 1" = 40'
© COPYRIGHT 2022 BY BLUE RIDGE
ENGINEERING PLLC, NC LICENSE #P-0205, ALL
RIGHTS RESERVED. THIS PLAN MAY NOT BE
RE -USED, SOLD, LOANED OR GIVEN TO
OTHERS. REPRODUCTION OR PHOTOCOPYING
OF THIS PLAN WITHOUT THE WRITTEN
CONSENT OF BLUE RIDGE ENGINEERING PLLC
IS PROHIBITED.
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