20080675 Ver 2_More Info Received_20090309

CLEARWATER ENVIRONMENTAL CONSULTANTS, INC.
March 6, 2009
Mr. Ian McMillan
NC Division of Water Quality n -
401 Oversight/Express Review Permitting Unit 1,
1650 Mail Service Center I `+
Raleigh, North Carolina 27699 kl tar?
pF?rJR . w'ATER 00ALITY
RE: Request for More Information Wetui DS ANN srOPMVYA7E't MIM,; 1
Ammons Mountain Properties, Inc.
Madison County, North Carolina
DWQ Project # 08-0675
Dear Mr. McMillan,
Please reference the "Request for More Information" letter dated February 24, 2009
(Attachment A) sent by the North Carolina Division of Water Quality (DWQ) in response
to the February 17, 2009, "401 Water Quality Certification - Request Items" letter
submitted by Clearwater Environmental Consultants, Inc. (CEC), on behalf of Mr. Justus
Ammons of Ammons Mountain Properties, Inc. In the "Request for More Information"
letter, the DWQ requested the submittal of several additional items prior to impacts
occurring at the site.. Each requested item will be discussed below.
DWQ Comment #1: "The minimum release (low flow) pipe is at least 4 inches in
diameter (6 inches preferred), fitted with an end cap, and a 2-inch hole (orifice) drilled
into the cap. This will ensure ease of maintenance in case there is clogging."
As indicated on the attached plans, the low-flow release pipe has been increased
to 4 inches in diameter. This pipe will be fitted with a cap, which has a 2-inch
orifice.
DWQ Comment #2: "Please raise the low flow pipe at least 6 inches above the floor
(current elevation 2487.5 feet) to further minimize any potential for clogging of the
orifice. "
As indicated on the attached plans, the low-flow release pipe has been raised
approximately 12 inches from the bottom elevation of the pond.
718 Oakland Street
Hendersonville, North Carolina 28791
Phone: [phone] Fax: [phone]
www.cwenv.com
Mr. Ian McMillan
03/05/09
Page 2 of 2
DWQ Comment #3: "That the pipe material should be strong enough to carry the
surcharge from 10 feet earth material plus vehicular traffic on the pavement. In this
case, we suggest that you consider using ductile iron pipe (DIP) instead of PVC"
As determined by Mercer Design Group, the pipe material, in this case PVC, is
strong enough to carry the weight of 10 feet of earth and vehicle loads. Use of
PVC pipes is typical for this type of construction and weight baring loads.
DWQ Comment #4: "Please ensure that all pipes through the berm shall be provided
with seepage control (anti-seepage) measures."
As indicated on the attached plans, anti-seep collars have been placed on the 12-
inch drain and 4-inch low-flow release pipe passing through the dam.
The information submitted in this package addresses all requests made in the "Request for
More Information" letter. CEC believes the totality of this information allows DWQ to
conclude that the applicant has addressed recommendations in the letter. The applicant
respectfully requests that the DWQ approve the attached information so that construction
may begin at the site.
Should you have any questions or comments concerning this project please do not hesitate
to contact me at 828-698-9800.
Sincerely,
(7,,
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Rebekah L. Newton R. C Aenti dle,
Project Biologist Principal
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Attachment A
DWQ Request for More Information
dated February 24, 2009
North Carolina
Beverly Eaves Perdue
Governor
CEC Project # J51 i
Date Recieved a -a? - 0,3
February 24, 2009
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Mr. Justus Ammons
Ammons Mountain Properties, Inc.
140 Ammons Drive
Raleigh, NC 27615
Dee Freeman
Secretary
DWQ Project # 08-0675, Ver. 2
Madison County
Subject Property: Traditions
Ut to Crooked Creek [040304, 6-96-10-1-8, WSII, HQW]
REQUEST FOR MORE INFORMATION
Dear Mr. Ammons:
On July 12, 2008, the Division of Water Quality (DWQ) issued a.401 Water Quality
Certification (WQC) to you for the above-referenced project. On February 18, 2009, the DWQ
received correspondence dated February 17, 2009, from you addressing Condition Nos. 10, 11,
12, and 17, of the above-referenced 401 WQC. Based on review of the February 17, 2009,
correspondence, the DWQ requests the additional information cited below to adequately address
these conditions.
Additional Information Requested:
After careful review of your additional information dated February 17, 2009, the DWQ has
determined that the measures proposed and described to ensure minimum water release are
acceptable. However, this office recommends the following:
1. The minimum release (low flow) pipe is at least 4 inches in diameter (6 inches
preferred), fitted with an end cap, and a 2-inch hole (orifice) drilled into the cap. This
will ensure ease of maintenance in case there is clogging.
2. Please raise the low flow pipe at least 6 inches above the floor (current elevation
2487.5 feet) to further minimize any potential for clogging of the orifice.
3. That the pipe material should be strong enough to carry the surcharge from the 10-
feet earth material plus vehicular traffic on the pavement. In this sense, we suggest
that you consider using a ductile iron pipe (DIP) instead of PVC.
4. Please ensure that all pipes through the berm shall be provided with seepage control
(anti-seepage) measures.
401 Civersight/Express Review Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd., Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: http://h2o,enr.state.nc.us/ncwetlands/
'5
NCDENR
Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
NorthCarolina
'V
,./
An Equal Opportunity 1 Affirmative Action Employer
Ammons Mountain Properties, Inc.
Page 2 of 2
February 24, 2009
Please submit revised plans and cross sections of the impoundment on Sheet D 11 showing the
minimum water release pipe, primary outlet structure, emergency spillways and major pool
levels.
Please submit this information within 30 calendar days of the date of thfs Jb-ver..This letter only
addresses requirements of Condition Nos. 10 11, 12, and 17, of your 401 WQC and does not
authorize any impacts to wetlands, waters or protected buffers._
authorized in your 401 WQC may nor occur until the requirements of Conditions Nos. 10, 11, 12,
and 17, of the above-referenced 401 WQC of your WQC have been met. Please call Ms. Cyndi
Karoly or Mr. Ian McMillan at 919-733-1786 if you have any questions regarding or would like to
set up a meeting to discuss this matter.
Sin ly
Cyndi Karoly, Supervisor
1 Oversight/Express Review Permitting
Unit
CBK/ijm
cc: USACE Asheville Regulatory Field Office
Kevin Barnett, DWQ Mooresville Regional Office
DLR Asheville Regional Office
File Copy
Matt Matthews, Wetlands and Stormwater Branch Manager
Clement Riddle, CEC, 718 Oakland Street, Hendersonville, NC 28791
Filename: 080675 V er2Trad i tions(Madison)On_Hold2