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C1earWater Environmental Consultants Inc
June 1 2012 www cwenv com
Mr Chuck Cranford
NC Division of Water Quality
2090 US Highway 70
Swannanoa NC 28778
RE The Ramble Culvert Monitoring ff—OTIHIII
DWQ Project No 20041178 Version 3 #2 JUN 5 2012
Buncombe County, North Carolina
ID ENR WATER 0UAL TY
Dear Mr Cranford aA�r erandi
Please reference the 401 Water Quality Certification (Certification) issued by the NC
Division of Water Quality (DWQ) on July 30 2009 (Attachment A) The Certification
authorizes 274 linear feet of stream impact at the Ramble in Biltmore Forest Buncombe
County North Carolina This correspondence complies with Additional Condition 3
(Culvert Installation) in the Certification Culverted crossings at the Ramble have been
monitored and the results are discussed below
Crossing #1
The DWQ noted that the culverts in this location were perched above the streambed at
the discharge point Remedial activities were completed at Crossing #1 to raise the water
elevation so that the perch condition was eliminated A cross section and longitudinal
profile along with representative photographs are shown below
Cross Section
95
94
93
0
0 92
91
> 90
L 89
88
0 5 10 15 20 25 30
Station (ft)
�— Ground Surface
224 South Grove Street Suite F Crossing #1
Hendersonville NC 28792
828 698 9800 Tel
828 698 9003 Fax
Mr. Chuck Cranford
May 30, 2012
Page 2 of 11
Photo 1. Crossing #1. View of double barrel culverts (looking upstream).
Photo 2. Crossing 41. Water depth in the left culvert (looking upstream) is
approximately 7.9 inches.
Mr. Chuck Cranford
May 30, 2012
Page 3 of 11
Photo 3. Crossing #1. Water depth in the right culvert (looking upstream) is
approximately 6.4 inches.
Longitudinal Profile
91
$ 90.5
c
90
ea
89.5
w
89
0 10 20 30 40 50 60
Station (ft)
� -Stream Bed —� Water Surface
Crossing #1.
Mr. Chuck Cranford
May 30, 2012
Page 4 of 11
Crossing #2
The DWQ noted that the culverts in this location were perched above the streambed at
the discharge point. Remedial activities were completed at Crossing #2 to raise the water
elevation so that the perch condition was eliminated. A cross section and longitudinal
profile; along with representative photographs, are shown below.
Cross Section
90
89
c
88
3 87
ro
W 86 .1
0 2 4 6 8 10 12 14 16 18 20 22
Station (ft)
Surface]
.__- -]
Crossing #2.
Photo 4. Crossing #2. View of double barrel culverts (looking upstream).
Mr. Chuck Cranford
May 30, 2012
Page 5 of 11
Photo 5. Crossing #2. Water depth immediately below the culvert is
approximately 4.7 inches.
Longitudinal Profile
89
88
0 87
86
w
85
0 5 10 15 20 25
Station (ft)
E:—�— Stream Bed — � Water Surface
Crossing #2.
Mr. Chuck Cranford
May 30, 2012
Page 6 of 11
Crossing #3
The DWQ noted that culvert in this location was perched above the streambed at the
discharge point. Remedial activities were completed at Crossing 43 to raise the water
elevation so that the perch condition was eliminated. A cross section and longitudinal
profile; along with representative photographs, are shown below.
E94
C
93
e�
92
LU 91
Crass Section
0 2 4 6 8 10 12 14 16 18
Station (ft)
t Ground Surface
Crossing #3.
Photo 6. Crossing 43. View of culvert (looking upstream).
Mr. Chuck Cranford
May 30, 2012
Page 7 of 11
Photo 7. Crossing #3. Water depth in the culvert is approximately 3.8 inches.
92
a
91
m
al 90
X
Longitudinal Profile
2 4 6 8 10 12 14 16 18
Station {ft}
�tStreamBed — w- Water Surface
Crossing #3.
Mr. Chuck Cranford
May 30, 2012
Page 8 of 11
Crossiniz #8
The DWQ noted that culvert in this location was perched above the streambed at the
discharge point. The applicant evaluated crossing #8 and as stated in the September 15,
2009 correspondence to DWQ: "The culvert in its current condition is not perched.
Photos of the crossing clearly show water backing up in the culvert and streambed
material accumulating in the culvert. There is approximately 0.55 feet (6.6 inches) of
water backing up into the culvert. No corrective action is proposed for this crossing."
Photos have been included in this report for review.
Photo 8. Crossing #8. View of culvert (looking upstream).
Mr. Chuck Cranford
May 30, 2012
Page 9 of 11
Photo 9. Crossing #8. There has been no change in stream condition at this location since
2009. Water depth in the culvert approximately 2.3 inches.
Mr. Chuck Cranford
May 30, 2012
Page 10 of I 1
Crossing #9
The DWQ did not specifically identify Crossing #9 in the 401 Certification. The
applicant evaluated crossing #9 and as stated in the September 15, 2009 correspondence
to DWQ: "The culvert in its current condition is not perched. Photos of the crossing
clearly show water backing up in the culvert and streambed material accumulating in the
culvert. There is approximately 4.8 inches of water backing up into the culvert. No
corrective action is proposed for this crossing." Photos have been included in this report
for review.
Photo 10. Crossing #9. View of culvert (looking upstream). There has been no change
in stream condition at this location since 2009. Water depth in the culvert approximately
7 inches.
Mr. Chuck Cranford
May 30, 2012
Page 11 of 11
Crossing #10
The DWQ did not specifically identify Crossing #10 in the 401 Certification. The
applicant evaluated crossing #10 and as stated in the September 15, 2009 correspondence
to DWQ: "The culvert in its current condition is not perched. Photos of the crossing
clearly show water backing up in the culvert and streambed material accumulating in the
culvert. There is approximately 4.8 inches of water backing up into the culvert. No
corrective action is proposed for this crossing." Photos have been included in this report
for review.
Photo 11. Crossing #10. View of culvert (looking upstream). There has been no change
in stream condition at this location since 2009. Water depth in the culvert approximately
7.7 inches.
The applicant believes the information in this letter satisfies Additional Condition 3 in the
401 Water Quality Certification. Please do not hesitate to contact me at (828) 698 -9800
if you have any questions or comments regarding the information submitting with this
letter.
Srel y,
R. Clement Riddle
Principal
cc: US Army Corps of Engineers - Liz Hair
NC Division of Water Quality, Raleigh - Ian McMillan
Attachment A
DWQ 401 Water Quality Certification
A'NJ DR; vig, A
North Carolina Department p t of Environment and Natural Resources
Beverly Eaves Perdue Division of Water Quality
Governor Coleen H Sullins
Director Dee Freeman
Secretary
July 30 2009
Tom Williamson
Ramble Biltmore Forest LLC
One Town Square Suite 330
Asheville North C'irohna 28803
Subject 401 Water Quality Certification Approval
The Ramble
DWQ Project # 20041178 Version 3 42
Buncombe County
French Broad / Dingle Creek / C 16-71
Dear Mr Williamson
The DWQ has completed the review of your 401 Water Quality Certification modification
subject project listed above and shall replace the Certification issued M-iy 29 2009 application associated with the
This modified Approval is being granted to place fill within or otherwise impact 274 hnear feet of streams for the purpose
of residential subdivision development at the subject property This approval i egnn es yon to follow the condhe pu
listed in the attached Cerhficahon and any additional condlT i s listed below
Project impacts are covered by General Water Quahty Certification Number 3705 This Certification allows you to use
Regional General permit 29 when issued by the US Army Corps of Engineers (USAGE) Authorization to proceed with
your proposed impacts or to conduct impacts to waters as depicted in your application and as authonzed by this
Certification shall expire upon expiration of the corresponding USAGE General Permit Verification In ad
tion ou
should obtain or otherwise comply with any other required federal state or local permits before you pro di
ceed with y
project including (but not hunted to) Erosion and Sediment Control and stormwater regulations y our
This approval is for the purpose and design that you described in your application If you change your project you must
notify us and may be required to submit a new application
Impacts Approved
The following impacts are hereby approved as long as 111 of the other specific and general conditions of this
Certification are met No other impacts are approved including incidental impacts
Location 2090 U 5 Highway 70 5wannanoa North Carolina 28778
Phone 828 296 -45001 FAX 818 299 7043 1 Customer Service 1. 877 - 623 -6748
Internet www ncwaterqua6ty Ora
, one _
01
Ramble Piltmore Forest, LLC
July 30 2009
Page 2 of 3
Stream
Stream
Stream
Stream
Stream
Stream
Stream
Stream
Stream
Stream
Additional Conditions
Amount Approved (Units)
Plan Location or Refeience
I00 (feet)
1
20 (feet)
2
10 (feet)
3
40 (feet)
g
20 (feet)
9
20 (feet)
10
4 (feet)
18
20 (feet)
Utility Crossm A
g ipem )
20 (feet)
20 (feet)
Utility Crossing B (Teen )
Utility Crossma G (Temn)
I Compensatory Mitigation Using the Ecosystem Enhancement Program (Ea)
We understand that you wish to make a payment to the NCDENR Wetlands Trust Fund adimnistered by the NC
Ecosystem Enhancement Program (EEP) to meet this mitigation requirement This has been determined by the
DWQ to be a suitable method to meet the mitigation requirement Until the EEP receives and clears your check
(made payable to DENR — Ecosystem Enhancement .Program Office) no Impacts
Certificate shall occur The EEP should be contacted at (919) 716 1921 if you have any questions concerning co on
payment into the fund. You have 60 days from the date of this approval to make this
Purposes, tins Anthonzation Certificate authorizes payment into the NCDENR Wetlands Trust I+�i d to g
meet the following compensatory mitigation requirement
Compensatory Mitigation River and Sub -basin Number
uA--.a
Stream 15 (linear feet) French Broad B2
2 No Direct Discharge of Stormwater
The Water Quality Certification Additional Conditions (issued August 5 2004) for this project required
that no direct discharge of concentrated stormwater shall be allowed from this project All collected
stormwater must be treated and discharged via diffuse flow through vegetated buffers An oolseta
Inspection from the Regional Office revealed that the roadside swales at crossing #18 had stonnw ater
drains to the surface waters below Within 30 calendar days of the issuance of this Certification you
must provide a plan and time line for implementation which will bring this crossing into compliance
with the above condition
Culvert Installation
The Water Quality Certification Additional Conditions (issued August 5 2004) for thi
culverts required for this project shall be installed in such a manner that theon s project required that
ginal stream profile are not
s
altered Existing stream dimensions including the cross section dimensions pattern and longitudinal profile must
be maintained above and below locations of each culvert alverts shall be designed and installed to allow for
aquatic life movement as well as to prevent head cutting of the streams 7f any of the existing pip
e re established or if the pipe es are or
become perched the appropriate sti -eam grade shall be Installed in a perched manner
the pipes shall be removed and re installed correctly Culverts shall not be installed in such a manner that will
cause aggradation or eiosion of the stream up or downstream of the culverts Existing stream dimensions
Ramble Eiltmore Forest LLC
July 30 2009
Page 3 of 3
including the cross section dimensions pattern and longitudinal profile shall be maintained above and below
locations of each culvert Anon site inspection from the Regional Office revealed the following
• Crossing #1 (dual barrel culverts) is perched above the streambed at its discharge point
Crossing #2 (dual barrel culverts) is peached above the streambbd at its discharge point
• Crossing #3 is perched
Crossing #8 is perched at its discharge point
fill crossings within the development must be re evaluated documented (photographs with scale both above and
below) and a plan developed to bring all crossings into compliance with the above cited Certification condition
This plan along with a time lane for implementation shall be submitted within 30 calendar days of issuance with
this approval
All mitigation vid installation modifications shall be completed prior to September 30 2009 Violations of any condition
herein set forth may result in revocation of this Certification and may result in criminal and/or civil penalties
If you do not accept any of the conditions of this Certification (associated with the approved wetland or stream impacts)
You may ask for an adjudicatory hearing You must act withm 60 days of the date that you receiv To
hearing send a written petition which conforms to Chapter 150B of the Nort h Carolina General Statutes e this letter ask for a
Administrative Hearings 6714 Mail Service Center Raleigh N C 27699 -6714 to the Office of
This cert,ficatton and its conditions are
final and bmdmg unless you ask for a hearing
This letter completes the review of your application by the Division of Water Quality under Section 401 of the Clean
Water Act If you have any questions please contact Kevin Barnett in the Asheville Regional Office at 828 296 -4657
Sincerely
Coleen H Sullins Director
CHS /khb
cc USACE Asheville Regulatory Feld Office — Electronic Copy
401 Permitting Unit — Central Office. — Electronic Copy
David McHenry —NC Wildlife Resources Commission — Dectionic Copy
File Copy
G 1 WPDATAOF- MWQIBoncombe1401s1041179ver3 Ramble#2 approval doc