20160230 Ver 1_401 Application_20160316

210 9 60230
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1a. Type(s) of approval sought from the Corps:
❑X Section 404 Permit Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 33 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps?
0 Yes ❑ No
1d. Type(s) of approval sought from the DWQ (check all that apply):
❑X 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
© Yes ❑ No
For the record only for Corps Permit:
Q Yes ❑ No
1 f. Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1g. Is the project located In any of NC's twenty coastal counties. If yes, answer 1 h
below.
Cl Yes ®No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ❑X No
2. Project Information
2a_ Name of project:
Enka Lake Dredging
2b. County:
Buncombe
2c. Nearest municipality J town:
Enka
Biltmore Lake Mi
2d. Subdivision name:
2e. NCDOT only, T, 1. P. or state project no:1
3. Owner Information DE -
3a. Name(s) on Recorded Deed:
Biltmore Lake Association, Inc. 1 A QUFFPR P Mi
3b. Deed Book and Page No,
2840/0764
3c. Responsible Party (for LLC if
applicable):
First Service Residential Carolinas, Inc. Attn: Bill McMannis
3d. Street address:
89 Lake Drive
3e. City, state, zip:
Candler, NC 28715
3f. Telephone no.:
828.209.5253
3g. Fax no.:
31h. Email address
Bili. [e-mail]
Page 1 of 10
PCN Form —Version 1.4 January 2009

4. Applicant Information (if .different from owner)
4a, applicant is:[]x
Agent Other, specify:
4b. Name:
Wyatt Edsel
4c. Business name
(if applicable):
Altamont Environmental, Inc,
4d. Street.address:
231 Haywood Street
4e. City, shite, zip:
Asheville, NO 28801
4f. Telephone no.:
828.34$.2180
4g. Fax no.:
828.281.3351
4h. Email address:
[e-mail]
S. AgentlConsultant Information (if applicable)
5a. Name:
5b. Business name.
(ir applicable):
5c. Streat address;.
5d. City, state, zip:
5e. Telephone na.:
5f. Fax no.:
5g. Email address:
Page 2 of 10

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
5816-17-9613
1b. Site coordinates (in decimal degrees): I
latitude: 35534175 Longitude: -82.655753
1c. Property size:
114.46 acres
2. Surface Waters
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) In the past?
2a, Name of nearest body of water to proposed project:
Enka Lake
2b, Water Quality Classification of nearest receiving water:
Class C
2c. Diver basin: 117rench
Broad
3. Project Description
3a. Describe, the existing conditions on'the'site and the general land use in the vicinity of the project at the time of this
application:
The site is an approximately 65 acre lake and the shore line which Is owned by the Biltmore Lake Association. The adjacent properties are residential
uses, the Biltmore Lake Real Estate -Agency, and eornmgn space for the Biltmore Lake community.
3b. List the total estimated acreage of all existing wetlands on the property: None
3c. List the total estimated linear feet of all existing streams (intermittent -and perennial) on the property: 2,527
3d, Explain the purpose of the proposed project:
The purpose of this project Is to remove sedlment that has accurnulated in 2 coves,of Enka take in recent years due to development In the watershed.
3e. Describe the overall project In detail, Including the• type of equipment to be used: mrib r,-1dt iS n£dpoeod to be rzompleted
i fhir it _ *A tmt-nr l.nvnt nr r_hn lake, wi11 '6A lnwnred a=rniimately 7-feeL- by einhon and the sediment to bo excavated fr+oc
the eaves will be allowed to dewater. Once the sediment han dxied enough, a tat*ornry construction acceso will be installed. It •Hill,
consist of a VotexUle, rip rap, and gravel., ;4 will pravlde a.ccwaa out make the coves for a long roan excavator and tri -axle dump
4. Jurisdictional Determinations trucks. The s©Ciinnnt will be hxcavated and hauled off site tc an area permitted for its di.
4a. Have'jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property !
fo'ect includin all rior hases In the ast?
El Yes ® No El Unknown
Comments: The site have been evaluated by the Carps
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
M preliminary Q Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) In the past?
®Yes d No ❑ Unknown
5b. If yes, explain in detail according to "help file" instructions.
6, Future Project Plans
6a. Is this a phased project?
0 Yes ® No
6b. If yes, explain.
There is future dredging planned forother locations in the lake.
Page 3 of 10
PCN Form —Version 1,4 January 2009
posa

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
�] Wetlands ❑ Strearhs — tributaries D Buffers 0 Open Waters [l Pond Construction
2. Watiand Impacts
If there are wetland Impacts proposed on the site, then complete -this question for each wetland area impacted.
2a.
Wetland Impact
number
Permanent (P) or
Teri ora
I 2b.
Type of impact
2c,
Type of wetland
-2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWa (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes/No
-
W2 -
Choose one
Choose, one
Yes1No
-
W3 -
choose one
Choose one
YeslNo
W4 -
Ghoose one
Choose one
Yes/No
-
M -
Chobse one
Choose one
Yes/No
-
VJ6 -
Choose one
Choose one
Yes1No
-
2g. Total
Wetland Impacts:
2h. Comments:
3, Strearin Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3h.
Type of impact
3c, 3d.
Stream name Perennial (PER) or
intermittent (INT)?
3e,
Type of
jurisdiction
3f,
Average.
stream
vridth
(feet)
3g.
impact
length
(linear
feet)
S1 -
Choose one
-
-
32 -
Choose one
-
-
S3 -
Choose ane
-
y
84 -
Choose one
-
-
gg -
Choose one
-
-
S6 -
Choose one
-
-
3h. Total stream and tributary impacts
3i. Comments:
Page 4 of 10
PCS! Form —Version 1,4 January 2009,

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individualIV list all open water Impacts below.
4a.
4b.
4c.
4d.
4e.
Open water
Name ofwateirbody
impact number
(if applicable)
Type of impact
Waterbody
Area of impact (acres)
Permanent (P) or
type
Tem ora
01 T
Enka Lake
Excavation
Lake
9.99
02 _
Choose ane
Choose
Q$ _
Chbose one
Choose
04 _
Choose one
Choose
4f. Total open water impacts
0.99
4g. Comments: '-he water surface elevation of the lake will be lowered, a temporary access will be built in the
dnr and pediment will be excavated. The tem»orary access will be removed when excavation io co.nplete.
5. Pond or Lake Construction
If pond or lake construcilon projpbsed, the cpm tete the chart below.
5a.
5b. 5c.
5d.
5e.
Pond ID number
Proposed use or Wetland Impacts (acres)
Stream Impacts (feet)
Upland
purpose of pond
(acres)
Flooded
f=illed.
Excavated
Flooded Pilled Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h, Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
51. E=xpected pond surface area (acres):
5j. Size of pored watershed (acres):
5k; Method of construction:
6. Buffer Impacts (for DWO)
If project will Impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts re uire mitigation, then vou MUST fill out Section D of this form.
6a. Project Is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ® Catawba ❑ Randleman ❑ other:
Eih.
6c.
6d. - fie.
6f. 6g.
Buffer Impact
Reason for impact
Stream name Buffer
Zone 1 Zane 2
number—
mitigation
impact impact
Permanent(P)or
required?
(square (square
Tem ora . T
feet) feet
61 -
YeslNo
B2 _
YeSM0
YerVNo
B4 -
1 eWNo
B5 -
Yes+No
l36
Ye" D
6h. Total Buffer Impacts:
81. Comments:
Page 5.0 10

0. impact Justification and Mitigation
1. Avoidance acid Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Measures including geoiextile mats and rock ivill be installed over the access to protect the shore where construction traffic will take place.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques,
Fall back cf excavated material into the water will not he allayed. The tributaries flowing into the coves urlll Ue,d;verted with sandbags and pipe while
is being -excavated. Meavy equipment will stay on the designated paths to prevent the extents of disturbance from leaving the intended areas.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a, Does the project require Compensatory Mitigation for
impacts to Waters of the. U.S. or Waters of the State?
❑ Yes Q No
2b. If yes, mitigation is required by {check all that apply):
C] DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ Payment to fn -lieu fee program
© Permittee Responsible Mitlga6on
3, Cotte lete9f Usin a Mitigation Bank
3a, Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments,
4. Complete if Makin a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached, ❑ Yes
4b. Stream mitigation requested: linearfeet
4c. If using stream mitigation, stream temperature: Choose one
4d, Suffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non -riparian wetland mitigation requested: acres
4g. Cossfal (tidal) wetland mitigation requested: acres
41). Comments:
S. Coritplete if Usinga' Permittee Responsible Mitigation, Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 0 of 10
PCN Farre — Version 1.4 January 2009

6, Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected dparlan buffer that requires
buffer mitigation?
d Yes No
6b. If yes, than identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required_
Zone
6c.
Reason for Impact
Gd. _
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone Z
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.,g;, payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee Band).
6h. Comments;
Page 7 of 10

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a, Does the project include.dr is it adjacent to protected riparian buffers identified
❑ Yes © No
within one of the NC Ri arian,Buffer Protection Rules?
1 b. If, yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
Z, Stormwater Management Plan
2a, What is the overall percent imperviousness of this project?
0%
2b. Does this project require a Stormwater P1lan6ement Plan?
❑ Yes 0 No
2c, if this project DOES NOT require a Stormwater Management Plan, explain why:
The project does not require a stormwater management plan because it dads not increase impervious surMce area and the drainage area isjoss that
25% Impervious. Additionally, disturbance is limited to less than ane acre. After speaking with Xen Pickle, NCDEQ DVVR SiwrnWalar Specialist, he
said that permitting through the state starmwater program (other than 4011404) was not necessary.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local overnment's jurisdiction is this ro'ect?
Buncombe county
❑ Phase 11
® NSW
3b, Which of the following locally-implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
mr. dike Goodson informed Altamont that Buncombe Cow-qty StoxmwaLer review
® t:3ther:
1'031d not: be reuufred.
3c. Has the approved Storinwater Management Plan with proof of approval been
[]Yes ❑x No
attached?
4. DVVQ Stormwater Pro ram Review
El Coastal counties
CHQW
4a. Which of the following state-implemented stormWater management programs apply
(check all that apply):
�ORVIr
session Law 2006.246
❑other:
4b. Has the approved Stormwater Management Plan with proof of approval been
❑Yes ❑ No
attached?
5. DWQ 409 [Unit Stormwater Review
5a, Does the Stormwater Management Plan meet the appropriate requirements?❑Yes
❑ No
ab, Have all of the 401 Unit submittal requirements been met?
❑ Yes ® No
Page 8 of 10
PCN Form —Version 1.4 January 2009

F. Supplementary Information
1.
Environmental Docunientatlon (DWQ Requirement)
1a.
Does.the project involve an expenditure of public (federallstatellocal) funds or the
❑Yes
d No
use of public (federallstate) land?
1 b.
if you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑Yes
❑ No
(North Carolina) Environmental Policy Act (NEPAISEPA)?
1 c,
If you answered "yes" to the above, has the document review been finalized by the
Stake .Clearing Horse? (If so, attach.a copy of the NEPA orSEPAfinal approval
®Yes
®No
letter.)
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ.Wetland Rules (15A NCAC 2H ;0500), Isolated
Wetland Rules (15A NCAC 2H .13©0), DWO Surface Water or Mtland Standards,
❑ Yes
®No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an afteMhe-fact permit application?
❑Yes
0 No
2c.
If yo,U answered "yes" to one or Bath of the above questions, provide an explanation of the violation(s):
3.
Cumulative Impacts (13M Requirement)
3a.
Will this project (based on past and reasonably anticipated future Impacts) result In
(]yes
d No
additional development, which could Impact nearby downstream water quality?
36.
If you answered "yes" to the above, submit a qualitative or quantitative cumulative Impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4.
Sewage Disposal (DWQ Requirement)
4a.
Clearly detail the ultimate treatment methods and disposition (non -discharge or discharge) of wastewater
generated from
the proposed project, or available capacity of the subject facility.
This project %vlll not generate wastewaler.
Page 9 of 10
PCN Form — Version 1..4 January 2009

S. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
�] Yes[Jx No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
� Yes Q No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d.- What data sources did, you use to determine Whetheryour site would fmpact E=ndangered Species or Designated'Geltical
Habitat?
"'a contacted Byron Hamstead to see if the project will have any Impacts urith respect to endangered species or designated critical habitat. He
informed us that it would not.
6, Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
Yes d No
6b. 'r`'Uhat data sources did you use to determine Whether your site would impact Essential Fish Habitat?
The online NOAA Essential Fish Habitat map and report generator.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
L] Yes No
status (e.g,, National Historic Trust designation or properties significant in
Forth Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
All impacts will be to areas that are currently underwater and have filled with sediment in recent times. Additionally, Altamont reviewed the Buncombe
County architectural surrey report generated by the NG State Historic Preservation office and did not find reference to the subject site.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
Yes No
ab, If yes, explain how project meets FEMA. requirements:
The entirety of Enka Lake is considered to be in the 100 year floodplain, however the tributaries In each of the coves to be excavated are not FEMA
mapped streams. The dredging will not have any ImpacEs on the floodplain.
8c. What source(s) did you use to make the floodplain determination?
wvev.fema.gov
Cu1 � s
r_
Applicant/Agent's Printed Name
Date
Appllcantlf gent's Signature
(AQenPs signature is valid only ff an aultiorizallon
letter from the applicant isprovided,)
Page 10 of 10

SAMPLE AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. PLAN NO.
PARCEL ID: 9616-17-9613
STREETADDRESS: 80 Lake Drive, Candler, NC 28715
Please print:
Property Owner: Biltmore Lake Association, Inc.
Property Owner:
The undersigned, registered property owners of the above noted properly, do hereby authorize
Wyatt Edsel
(Contractor / Agent)
of Altamont Environmental, Inc.
(Name of consulting firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of
this permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
Telephone:
We hereby certify the above Information submitted in this application is true and accurate to the
best of our knowledge.
Authorize ignature
Date: 112f/6
Authorized Signature
Date:

United States Department of the Interior
FISH AND WILDLIFE SERVICE
Asheville Field Office
160 Zillicoa Street
Asheville, North Carolina 28801
February 16, 2016
Mr. Wyatt Edsel
Altamont Environmental Inc.
231 Haywood Street
Asheville, North Carolina, 28801
Dear Mr. Edsel:
Subject: Enka Lake Dredging Project; Buncombe County, North Carolina
Log No. 4-2-16-180
The U.S. Fish and Wildlife Service (Service) has reviewed the information provided in your
letter dated February 1, 2016 and subsequent telephone conversation on February 16, 2016. We
submit the following comments in accordance with the provisions of the Fish and Wildlife
Coordination Act, as amended (16 U.S.C. 661-667e); the National Environmental Policy Act
(42 U.S.C. §4321 et seq.); and section 7 of the Endangered Species Act of 1973, as amended
(16 U.S.C. 1531-1543) (Act).
Project Description
According to the information provided, your client is seeking a Nationwide Permit 33 to dredge
two coves on Enka Lake in Buncombe County North Carolina. Specifically, you propose to
draw down the Lake by 7 feet, allow the exposed sediment to dry, then excavate approximately 5
feet of the exposed sediments. As proposed, this work would be accomplished in the dry, and
erosion control measures would be installed to ensure that no incoming flow interacts with
disturbed areas.
Federally Protected Species
The Service has no current record of any federally protected species or their designated critical
habitats within the proposed project's impact area. At this time the Service considers the
consultation process to be complete. However, be aware that obligations under section 7 of the
Act must be reconsidered if: (1) new information reveals impacts of this identified action that
may affect listed species or critical habitat in a manner not previously considered, (2) this action
is subsequently modified in a manner that was not considered in this review, or (3) a new species
is listed or critical habitat is determined that may be affected by the identified action.

In the interest of protecting natural resources, we offer the following recommendations:
Reservoir Dredging
Littoral lake areas are highly productive and are spawning grounds for many species of fish. We
request that you avoid disturbance of these coves during the spawning season (generally when
water temperatures reach 60 — 70 degrees Fahrenheit). We recommend that you replace
excavated woody debris to provide natural structure and habitat cover for aquatic species.
Erosion and Sediment Control
Construction activities near streams, rivers, and lakes have the potential to cause water pollution
and stream degradation if measures to control site runoff are not properly installed and
maintained. In order to effectively reduce erosion and sedimentation impacts, Best Management
Practices specific to the extent and type of construction should be designed and installed during
land -disturbing activities and maintained until the project is complete and appropriate storm
water conveyances and vegetation are re-established on-site.
A complete design manual, which provides extensive details and procedures for developing
site-specific plans to control erosion and sediment and is consistent with the requirements of the
North Carolina Sedimentation and Pollution Control Act and Administrative Rules, is available
at http://portal.ncdenr.org/web/lr/publications. Additional resources can be found at
http://www.nedot.gov/doh/operations/dp—chief eng/roadside/fieldops/downloads/
For maximum benefits to water quality and bank stabilization, riparian areas should be forested
but if maintained in grass, should not be mowed. We recommend planting disturbed areas with
native riparian species. The U.S. Fish and Wildlife Service can provide information on potential
sources of plant material upon request.
The Service appreciates the opportunity to comment on this project. Please contact Mr. Byron
Hamstead of our staff at 828/258-3939, Ext. 225, if you have any questions. In any future
correspondence concerning this project, please reference our Log Number 4-2-16-180.
Sincerely,
- - original signed - -
Janet A. Mizzi
Field Supervisor
Electronic copy to:
Mr. William Elliott, U.S. Army Corps of Engineers
2

Wyatt Edsel
From: Leslie, Andrea J <[e-mail]>
Sent: Friday, January 15, 2016 9:31 AM
To: Wyatt Edsel
Subject: RE: Biltmore Lake Dredging
Great—just be sure to describe this in your PCN.
Andrea
Andrea Leslie
Mountain Habitat Conservation Coordinator
NC Wildlife Resources Commission
20830 Great Smoky Mountain Expressway
Waynesville, NC 28786
828-558-6011; 828-400-4223 (cell)
www.ncwildlife.org
Get NC Wildlife Update delivered to your inbox from the N.C. Wildlife Resources Commission.
Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
From: Wyatt Edsel [mailto:[e-mail]]
Sent: Friday, January 15, 2016 9:20 AM
To: Leslie, Andrea J <[e-mail]>
Subject: RE: Biltmore Lake Dredging
Good morning Andrea,
Thank you for your quick response. We are proposing to lover the lake by siphon. It should not increase in the
sediment load downstream of the lake. Let me know if you have more questions or would like to discuss.
Thank you,
Wyatt Edsel
Altamont Environmental Inc.
231 Haywood Street
Asheville, North Carolina 28801
Phone: [phone]
Cell: [phone]
wedsel(@altamontenvironmental.com
www.altamontenvironmental.com
From: Leslie, Andrea J [mailto:[e-mail]]
Sent: Friday, January 15, 2016 9:17 AM

To: Wyatt Edsel <[e-mail]>
Subject: RE: Biltmore Lake Dredging
Hi Wyatt,
10-4. This project shouldn't impact trout resources, so we will not ask for you to avoid it during the trout -
moratorium. My concern will be minimizing any loss of sediment from the project to downstream
waters. How will the lake be lowered?
Andrea
Andrea Leslie
Mountain Habitat Conservation Coordinator
NC Wildlife Resources Commission
20830 Great Smoky Mountain Expressway
Waynesville, NC 28786
828-558-6011; 828-400-4223 (cell)
www.ncwildlife.or
Get NC Wildlife U12date delivered to your inbox from the N.C. Wildlife Resources Commission.
Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
From: Wyatt Edsel fmailto:[e-mail]]
Sent: Thursday, January 14, 2016 9:46 AM
To: Leslie, Andrea J <[e-mail]>
Subject: Biltmore Lake Dredging
Andrea,
At the recommendation of Tasha Alexander with the ACOE, I wanted to reach out to you in advance of submitting a
PCN for dredging 2 coves in Biltmore Lake. We are proposing to draw the lake level down about 7' and allow deposited
sediment to dry. We are then proposing to install a temporary construction access across the dry lake bottom. Then the
sediment will be excavated from "the dry" and hauled off-site. Work would have to be done from the shore or the
temporary access. Material could only be removed above the lowered water line and would have to be placed directly
into a truck with only incidental fall back. The access road would have to be removed completely as soon as the limited
dredging is completed. We are in the process of submitting a PCN for this work but we hope to complete the work
before the spring rainy season so Tasha suggested we request you start your review as soon as possible.
Let me know if you have any questions.
Thank you,
Wyatt Edsel
Altamont Environmental Inc.
231 Haywood Street
Asheville, North Carolina 28801
Phone: [phone]
Cell: [phone]
[e-mail]

ENKA LAKE DREDGING
LAKE DRIVE, CANDLER
BUNCOMBE COUNTY, NORTH CAROLINA
DRAWING SET CONTENT
SHEET N0.
SHEET TITLE
C-1.0
COVER SHEET
C-2.0
NOTES AND SPECIFICATIONS
C-3.0
COVE I DREDGING PLAN
C-4.0
COVE 2 DREDGING PLAN
C-5.0
DETAILS SHEET I
PHASE I
UA I A --A
PROPERTY OWNER:
BILTMORE LAKE ASSOCIATION
PO BOX 10
ENKA, NC 28728
CONTACT PERSON:
BILL McMANNIS
80 LAKE DRIVE
CANDLER, NC 28715
828-670-8293
PROJECT NAME:
ENKA LAKE DREDGING
PROJECT LOCATION:
60 LAKE DRIVE
CANDLER, NC 28715
PIN *: 9616-17-9613
ZONING DISTRICT:
R2
PROPERTY SIZE: 114.46 ACRES
TOTAL DISTURBED AREA: 0.99 ACRES
ESTIMATED EARTH WORK VOLUMES:
CUT: -2,000 CY
FILL: 0 CY
MATERIAL TO BE REMOVED: -2,000 CY
VICINITY MAP
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PROJECT SITE
NOT TO SCALE
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GENERAL NOTES: (APPLICABLE TO ALL SHEETS)
I.PROPERTY BOUNDARY IS FROM BUNCOMBE COUPNY GIS, ACCESSED FEBRUARY 2016.
2.CONTOUR ELEVATIONS BASED ON LIDAR DATA.
3.PROJECT TO BE CONSTRUCTED IN I PHASE.
4. ALL IMPROVEMENTS, MATERIALS, AND METHODS SHALL CONFORM TO THE NORTH CAROLINA DEPARTMENT
OF TRANSPORTATION STANDARD SPECIFICATIONS FOR ROADS AND STRUCTURES, LATEST EDITION, UNLESS
OTHERWISE NOTED ON THE PLANS OR SUPERSEDED BY ANOTHER JURISDICTION HAVING AUTHORITY (JHA).
5. ALL PAVEMENT MARKINGS SHALL CONFORM TO NCDOT STANDARDS.
6. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM TO THE MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES
STANDARDS, LATEST EDITION.
7. THE CONTRACTOR SHALL PROTECT EXISTING PROPERTY MONUMENTATION AND PRIMARY CONTROL. ANY
SUCH POINTS WHICH THE CONTRACTOR BELIEVES WILL BE DESTROYED SHALL HAVE OFFSET POINTS
ESTABLISHED BY THE CONTRACTOR PRIOR TO CONSTRUCTION. ANY MONUMENTATION DESTROYED BY THE
CONTRACTOR SHALL BE REESTABLISHED AT HIS EXPENSE.
e. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO: A.) PREVENT ANY DAMAGE TO PRIVATE
PROPERTY AND PROPERTY OWNER'S POLES, FENCES, SHRUBS, ETC. B.) PROTECT ALL UNDERGROUND
UTILITIES. C.) NOTIFY ALL UTILITY COMPANIES AND FIELD VERIFY HORIZONTAL AND VERTICAL LOCATION OF
ALL UTILITIES PRIOR TO START OF CONSTRUCTION. NOTIFY OWNER OF ANY POTENTIAL CONFLICTS WHICH
MAY EXIST BETWEEN THE EXISTING UTILITIES AND CONSTRUCTION PLANS.
9. BARRICADING AND TRAFFIC CONTROL DURING CONSTRUCTION SHALL BE THE RESPONSIBILITY OF THE
CONTRACTOR AND SHALL CONFORM TO THE NCDOT STANDARD SPECIFICATIONS AND DRAWINGS. PEDESTRIAN
AND VEHICULAR TRAFFIC FLOW SHALL BE MAINTAINED DURING ALL PHASES OF THE CONSTRUCTION, THE
CONTRACTOR IS RESPONSIBLE FOR PROVIDING TRAFFIC SAFETY MEASURES FOR WORK ON PROJECT.
10. CONTRACTOR SHALL MAINTAIN DRAINAGE AT ALL TIMES DURING CONSTRUCTION. PONDING OF WATER IN
STREETS, DRIVES, TRUCK COURTS, TRENCHES, ETC. WILL NOT BE ACCEPTABLE.
11. ANY DAMAGES THAT MAY OCCUR TO REAL PROPERTY OR EXISTING IMPROVEMENTS SHALL BE RESTORED
BY THE CONTRACTOR TO AT LEAST THE SAME CONDITION THAT THE REAL PROPERTY OR EXISTING
IMPROVEMENTS WERE IN PRIOR TO THE DAMAGES. THIS RESTORATION SHALL BE SUBJECT TO THE OWNER'S
APPROVAL; MOREOVER, THIS RESTORATION SHALL NOT BE A BASIS FOR ADDITIONAL COMPENSATION TO THE
CONTRACTOR. RESTORATION SHALL INCLUDE, BUT NOT BE LIMITED TO, REGRASSING, REVEGETATION,
REPLACING FENCES, REPLACING TREES, ETC.
12. WHERE PRESENT, CONTRACTOR SHALL MAINTAIN EXISTING SANITARY SEWER AND WATER SERVICE AT
ALL TIMES DURING CONSTRUCTION.
13. CONTRACTOR IS RESPONSIBLE FOR COORDINATION WITH UTILITY COMPANIES AND ADJUSTMENT OF
EXISTING SANITARY SEWER CLEANOUTS, WATER METERS AND ANY OTHER APPURTENANCES TO NEW GRADE
AS REQUIRED.
14. CONTRACTOR IS RESPONSIBLE FOR COMPLYING WITH ALL APPLICABLE LOCAL, STATE AND FEDERAL
STORM WATER POLLUTION PREVENTION LAWS AND ORDINANCES.
15. PAVEMENT REMOVAL AND REPAIR SHALL CONFORM TO NCDOT REQUIREMENTS. ALL SAWCUTS SHALL BE
FULL DEPTH CUTS. CONTRACTOR SHALL MAKE EFFORTS TO PROTECT CONCRETE EDGES. ANY LARGE
SPALLED OR BROKEN EDGES SHALL BE REMOVED BY SAWCUTTING PAVEMENT PRIOR TO REPLACEMENT.
16. CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL EROSION CONTROL MEASURES THROUGH
THE COMPLETION OF THE PROJECT AND THROUGH THE ESTABLISHMENT OF VEGETATION SUFFICIENT TO
PROVIDE EROSION PROTECTION. CONTRACTOR SHALL BE RESPONSIBLE FOR THE REMOVAL OF ALL
TEMPORARY EROSION CONTROL MEASURES PRIOR TO PROJECT CLOSE-OUT.
17. PRIOR TO BEGINNING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE TO VERIFY THAT ALL
REQUIRED PERMITS AND APPROVALS HAVE BEEN OBTAINED FROM ALL REGULATORY AUTHORITIES.
18. ALL DISTURBED AREAS ARE TO BE STABILIZED AND SEEDED WITHIN 14 DAYS OF DISTURBANCE UNLESS
OTHERWISE NOTED.
PAVING:
I. ALL CONCRETE CURB, WALK, AND HARDSCAPE SURFACES SHALL BE CONSTRICTED ON 6' MIN. OF
COMPACTED ABC.
2. NEW CONCRETE WALK INSTALLED ADJACENT TO EXISTING CONCRETE CURB AND/OR WALK SHALL BE
DOWELED OR OTHERWISE PHYSICALLY CONNECTED TO PREVENT DIFFERENTIAL MOVEMENT. SEE DETAIL.
3. UNLESS OTHERWISE NOTED, ALL CONCRETE SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 4000
PSI AT 28 DAYS,
4. CONTRACTOR SHALL COVER ALL CASTINGS WITH TAR PAPER, OR SIMILAR PROTECTION, PRIOR TO
PAVING. CASTINGS WITH EVIDENCE OF PAVING MATERIALS SHALL BE CLEANED BY THE CONTRACTOR WITH
NO ADDITIONAL COST TO THE CONTRACT.
TESTING:
I. THIRD PARTY TESTING SHALL BE REQUIRED FOR THE SUBGRADE. AGGREGATE BASE COURSE (ABC) AND
TRENCH BACKFILL.
2. SUBGRADE MOISTURE DENSITY TESTING SHALL BE PROVIDED AT ONE TEST PER SOIL TYPE AND
COMPACTION TESTING AT ONE TEST PER 400 SF.
ABC TESTING SHALL INCLUDE I MOISTURE -DENSITY TEST PER SOURCE AND COMPACTION TESTING AT ONE
TEST PER 400 SF.
3. TRENCH BACKFILL SHALL INCLUDE ONE MOISTURE -DENSITY TEST PER SOIL TYPE AND ONE COMPACTION
TESTING AT ONE PER 400 SF PER LIFT.
GRADING NOTES: (APPLICABLE TO ALL SHEETS)
I. UNLESS OTHERWISE NOTED IN THESE PLANS, SITE GRADING SHALL BE PERFORMED IN ACCORDANCE WITH
APPENDIX J OF THE NC BUILDING CODE.
2. THE SURFACE OF AREAS TO BE GRADED SHALL BE PREPARED TO RECEIVE FILL BY REMOVING
VEGETATION, TOPSOIL, AND OTHER UNSUITABLE MATERIALS, AND SCARIFYING THE GROUND TO PROVIDE A
BOND WITH THE FILL MATERIAL.
3. WHERE EXISTING GRADE EXCEEDS 5:1 (HORIZONTAL:VERTICAL) AND THE DEPTH OF FILL EXCEEDS 5
FEET. BENCH NG SHALL BE PROVIDED. A 2 -FOOT DEEP BY 10 -FOOT WIDE KEY SHALL BE PROVIDED AT THE
TOE OF THE FILL SLOPE. REFER TO NC BUILDING CODE SECTION 107 FOR ADDITIONAL DETAIL.
4. CERTIFICATION OF CUT AND FILL SLOPES SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR AND
SHALL BE MADE BY A GEOTECHNICAL ENGINEER LICENSED TO PRACTICE IN THE STATE OF NORTH
CAROLINA. UNLESS OTHERWISE NOTED, ALL CUT AND FILL SLOPES PROPOSED BY THESE PLANS SHALL BE
2:1 (HORIZONTAL:VERTICAL) OR FLATTER.
5. CUT AND FILL SLOPES (EMBANKMENTS) SHALL BE CONSTRUCTED IN ACCORDANCE WITH NCDOT
STANDARD SPECIFICATION SECTION 235 OR THE GEOTECHNICAL (SOILS) REPORT RECOMMENDATIONS,
WHICHEVER IS MORE RESTRICTIVE. AT A MINIMUM, ALL FILL SLOPES SMALL BE PLACED IN 10 -INCH
MAXIMUM LIFTS COMPACTED TO NOT LESS THAN 95 PERCENT DENSITY (STANDARD PROCTOR).
CONTRACTOR SHALL ARRANGE FOR INDEPENDENT COMPACTION TESTING RESULTS TO BE PAID FOR BY THE
OWNER/DEVELOPER.
6. NO GRADING SHALL OCCUR WITHIN 2 FEET OF A PROPERTY LINE WITHOUT WRITTEN PERMISSION FROM
THE ADJACENT PROPERTY OWNER.
7. UNLESS OTHERWISE INDICATED IN THESE PLANS TERRACES SHALL BE PROVIDED AS FOLLOWS: WHERE
GRADES EXCEED 3:1 (HORIZONTALNERTICAL), TERRACES AT LEAST 6 FEET IN WIDTH SHALL BE
CONSTRUCTED AT NOT MORE THAN 30 -FOOT VERTICAL INTERVALS ON ALL CUT OR FILL SLOPES. SWALES
SHALL BE PROVIDED ON TERRACES IN ACCORDANCE WITH NC BUILDING CODE SECTION J109.
8. FINE GRADING AND SEEDING SHALL OCCUR AT ALL AREAS DISTURBED BY THE WORK OF THE PROJECT
REMOVAL OF ALL DEBRIS
S IN ANY DIMENSION, FINE
NERAL ACCORDANCE WITH
ITURBED AREAS SHALL BE PLANTED WITH AN APPROVED GROUND COVER WITHIN 14 CALENDAR DAYS.
STEEPER THAN 3:1 MUST BE STABILIZED IN 7 DAYS. INSTALL TEMPORARY SEEDING ON ALL AREAS
,ILLBE LEFT IDLE FOR MORE THAN 14 DAYS. HARD WOOD MULCH IS AN ACCEPTABLE TEMPORARY
BUT MAY NOT BE BLENDED INTO THE SUBGRADE AND WILL BE REQUIRED TO BE REMOVED PRIOR TO
SEEDING NOTES: (APPLICABLE TO ALL SHEETS)
I. SEED MIXES:
UNLESS OTHERWISE SPECIFIED ON THE LANDSCAPE PLAN, SEEDING SHALL CONSIST OF. A MIX INCLUDING
ALL OF THE FOLLOWING SPECIES:
KENTUCKY BLUEGRASS - I LB/1000 SF
TALL FESCUE - 5 LBAODO SF
FINE FESCUE - I LB/1000 SF
ACCEPTABLE CULTIVARS OF THE ABOVE GRASSES ARE LISTED IN CAROLINA LAWNS: A GUIDE TO
MAINTAINING OUALITY_TURF IN THE LANDSCAPE, TABLE 3. COOL -SEASON GRASS CULTIVARS WITH
LAWNS.PDF
FOR THE SEED MIXES TO THE ENGINEER
A SOIL TEST FOR THE SUBJECT PROPERTY, FERTILIZER SHALL BE
PRIOR TO PLANTING, SOIL SHALL BE PREPARED WITH THE FOLLOWING:
GROUND LIMESTONE: 75 LB/1000 SF
N -P -K STARTER FERTILIZER AT A RATE OF I LB NITROGEN/1000 SF
AFTER PLANTING, SEEDED AREAS SHALL BE FERTILIZED A SECOND TIME, APPROXIMATELY SIX TO EIGHT
WEEKS AFTER GERMINATION, USING A COMPLETE N -P -K TURF -GRADE FERTILIZER APPLIED AT A RATE OF I
LB NITROGEN/1000 SF. THE FERTILIZER SHALL HAVE A 3-1-2 OR 4-1-2 ANALYSIS.
CONTRACTOR SHALL PROVIDE LABELS FOR THE FERTILIZER TO THE ENGINEER FOR APPROVAL PRIOR TO
APPLICATION.
3. MOWING:
CONTRACTOR SHALL BE RESPONSIBLE FOR MOWING GRASS THROUGHOUT THE DURATION OF THE PROJECT.
GRASS SHALL BE CUT TO A HEIGHT NO LESS THAN 2.5' WHEN IT HAS ACHIEVED A HEIGHT OF
APPROXIMATELY 4'. MOWING WITH A SHARP, MULCHING TYPE BLADE IS PREFERRED AND CLIPPINGS MAY BE
LEFT IN PLACE. WHEN GRASS IS ALLOWED TO EXCEED THE PREFERRED HEIGHT FOR MOWING OR IF THE
GRASS IS CUT DURING WET CONDITIONS, THE CLIPPINGS SHALL BE BAGGED OR RAKED AND REMOVED FROM
THE SITE.
4. WATERING:
CONTRACTOR IS RESPONSIBLE FOR ESTABLISHING A CONTINUOUS, CLOSE STAND OF GRASS WITH NO GAPS
OR BARE SPOTS EXCEEDING A HAN09S BREADTH. WHEN REQUIRED TO GERMINATE OR SUSTAIN THE GRASS
UNTIL THE PROJECT IS COMPLETE, WATER SHALL BE APPLIED IN THE MORNING AT A RATE OF 0.5 INCH
EROSION CONTROL NOTES: (APPLICABLE TO ALL SHEETS)
I. STRAW MULCH AND TALL FESCUE SHOULD NOT BE USED IN RIPARIAN AREAS.
2, IF CONCRETE IS USED (EG. HEADWALLS), A DRY WORK AREA MUST BE MAINTAINED TO PREVENT DIRECT
CONTACT BETWEEN CURING CONCRETE AND STREAM WATER. WATER THAT INADVERTENTLY CONTACTS
LIVE CONCRETE MUST NOT BE DISCHARGED TO SURFACE WATERS DUE TO THE POTENTIAL FOR WATER
CHEMISTRY CHANGE AND FISH KILLS.
3. ROCK, SAND OR OTHER MATERIALS MUST NOT BE EXCAVATED FROM THE STREAM CHANNELS EXCEPT IN
THE IMMEDIATE VICINITY OF THE CULVERT LOCATIONS. THE NATURAL DIMENSION, PATTERN, AND PROFILE
OF THE CHANNEL UPSTREAM AND DOWNSTREAM OF THE CULVERT MUST NOT BE MODIFIED.
4. SANDBAGS, FLEXIBLE PIPE, OR OTHER DIVERSION STRUCTURES SHOULD BE USED TO AVOID EXCAVATING
IN FLOWING WATER. MATERIALS USED FOR FLOW DIVERSION SHOULD BE REMOVED FROM THE STREAM BED
AFTER COMPLETING THE CONSTRUCTION WORK. ANY DIVERSION CHANNELS MUST BE LINED WITH FILTER
MATERIALS PLACED TEMPORARILY IN STREAMS FOR FORDS MUST BE REMOVED AND
LS RESTORED TO EXISTING CONDITIONS AFTER THE FORDS ARE NO LONGER NEEDED.
TION ESPECIALLY TREES AND SHRUBS, SHOULD BE PRESERVED AS MUCH AS POSSIBLE.
fATInN fFG_ RHODODENDRON. DOG HOBBLE. SILKY DOGWOOD. SYCAMORE. RIVER BIRCH,
DURING CONSTRUCTION TO PROVIDE BANK STABILITY AND SHADING. THE USE OF NATIVE PLANTS THAT
MUST BE REMOVED FROM PERMANENTLY DISTURBED AREAS IS ENCOURAGED.
7. ALL MECHANIZED EQUIPMENT OPERATED NEAR SURFACE WATERS SHOULD BE INSPECTED AND
MAINTAINED REGULARLY TO PREVENT CONTAMINATION OF STREAM WATERS FROM FUELS, LUBRICANTS,
HYDRAULIC FLUIDS OF OTHER TOXIC MATERIALS.
8. DISCHARGING HYDROSEED MIXTURES AND WASHING OUT HYDROSEEDERS AND OTHER EQUIPMENT IN OR
ADJACENT TO SURFACE WATERS IS PROHIBITED.
9. EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSPECTED DAILY AND AFTER ANY RAINFALL.
DEFICIENCIES SHALL BE CORRECTED IMMEDIATELY. A DAILY RECORD SHALL BE MAINTAINED ON THE SITE
BY THE CONTRACTOR. PROJECT SITE CONDITIONS MAY REQUIRE INSTALLATION OF ADDITIONAL EROSION
AND SEDIMENT CONTROL MEASURES. EROSION CONTROL MEASURES AND MAINTENANCE SHALL BE IN
ACCORDANCE WITH THE NORTH CAROLINA EROSION AND SEDIMENT CONTROL MANUAL.
EROSION CONTROL SCHEDULE: (APPLICABLE TO ALL SHEETS)
THE EROSION AND SEDIMENTATION CONTROL PLAN IS DESIGNED FOR THE COMPLETED GRADED CONDITION IN
ACCORDANCE WITH THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL, LATEST EDITION. IT IS THE
CONTRACTOR'S RESPONSIBILITY TO MAINTAIN AND PROVIDE ADDITIONAL EROSION AND SEDIMENTATION
CONTROL MEASURES AS NEEDED BETWEEN THE TIME THE GRADING OPERATION IS BEGUN AND THE TIME IT
IS COMPLETED. THE ENGINEER IS AVAILABLE AS NEEDED FOR CONSULTATION ON SELECTING AND SIZING
APPROPRIATE INTERIM MEASURES WHEN THEY MAY BE REQUIRED. CONSTRUCTION SHALL PROCEED IN
ACCORDANCE WITH THE FOLLOWING SCHEDULE:
1. MAINTENANCE - MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES SHALL INCLUDE
INSPECTIONS PERFORMED ON A WEEKLY BASIS AND AFTER EVERY RAINFALL EVENT. MAINTENANCE
CLEANING AND REPAIRS SHALL BE MADE IMMEDIATELY. CONTRACTOR SHALL MAKE INSPECTIONS AND
REPAIRS AS NEEDED DURING PERIODS OF EXTENDED RAINFALL.
2. CONSTRUCTION ACCESS - APPLICABLE TO CONSTRUCTION ACCESS, CONSTRUCTION ROUTES, AND
EQUIPMENT PARKING AREAS. INSTALL STABILIZED CONSTRUCTION ENTRANCE, ACCESS ROUTES AND
PARKING AREAS. MUDDY AND RUTTED PATHS ARE NOT ACCEPTABLE. STABILIZE BARE AREAS IMMEDIATELY
WITH GRAVEL, MULCH, AND TEMPORARY VEGETATION AS CONSTRUCTION TAKES PLACE.
3. SEDIMENT TRAPS AND BARRIERS - APPLICABLE TO BASIN TRAPS, SEDIMENT FENCES, AND OUTLET
PROTECTION. INSTALL PRINCIPAL BASINS AND SILT FENCE IMMEDIATELY AFTER CONSTRUCTION ACCESS.
VATER BARS, AND OUTLET
,BRIERS AND PRIOR TO GRADING.
ILE TO STREAM BANKS, STORM DRAINS, CHANNELS, INLET AND
JSTALL PRINCIPAL RUNOFF CONVEYANCE SYSTEM
SURES. WHERE APPLICABLE, STABILIZE STREAM BANKS PRIOR
ALL WORK IN STREAMS. SPRINGS. AND OTHER JURISDICTIONAL
6, LAND CLEARING AND GRADING -APPLICABLE TO SITE PREPARATION, CUTTING, FILLING, AND SURFACE
ROUGHENING. MARK TREE AND BUFFER AREAS AND INSTALL APPROPRIATE PROTECTION PRIOR TO CLEARING
AND GRADING. BEGIN MAJOR CLEARING AND GRADING AFTER PRINCIPAL SEDIMENT AND KEY RUNOFF
CONTROL MEASURES ARE INSTALLED. CLEAR BORROW AND DISPOSAL AREAS ONLY AS NEEDED. INSTALL
ADDITIONAL CONTROL MEASURES AS GRADING PROGRESSES.
7. SURFACE STABILIZATION - APPLICABLE TO TEMPORARY AND PERMANENT SEEDING, MULCHING, SODDING,
AND RIPRAP. APPLY TEMPORARY OR PERMANENT STABILIZATION MEASURES IMMEDIATELY ON ALL
DISTURBED AREAS WHERE WORK IS DELAYED OR COMPLETE.
8. BUILDING AND SITE CONSTRUCTION - APPLICABLE TO BUILDINGS, STRUCTURES, UTILITIES AND PAVING.
MODIFY AND MAINTAIN EROSION AND SEDIMENTATION CONTROL MEASURES AS CONSTRUCTION PROGRESSES.
INSTALL ADDITIONAL MEASURES AS NEEDED TO RESPOND TO CHANGES IN SITE CONDITIONS.
9. LANDSCAPING AND FINAL STABILIZATION - APPLICABLE TO TOPSOILING, TREE AND SHRUB PLANTING,
PERMANENT SEEDING, MULCHING, SODDING, AND RIPRAP. STABILIZE ALL OPEN AREAS, INCLUDING BORROW
AND SPOIL AREAS. REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INCLUDING SILT FENCE AND
STAKES. STABILIZE ALL TEMPORARY CONTROL AREAS. OBTAIN FINAL APPROVAL BY ENGINEER AND
AUTHORITY HAVING JURISDICTION.
CONSTRUCTION SEQUENCE: (APPLICABLE TO ALL SHEETS)
I. THE PURPOSE OF THIS PROJECT IS TO REMOVE ACCUMULATED SEDIMENT IN TWO COVES ON ENKA
LAKE THAT HAVE BEEN FILLING IN WITH SEDIMENT DUE TO LAND DISTURBANCE IN THE DRAINAGE AREA
UPSTREAM OF THESE COVES. THE COVES WILL BE REFERRED TO AS COVE I AND COVE 2. THIS WORK IS
AUTHORIZED BY PERMITS FROM THE US ARMY CORPS OF ENGINEERS (ACOE), THE NC DEPARTMENT OF
ENVIRONMENTAL QUALITY, BUNCOMBE COUNTY STORMWATER, AND BUNCOMBE COUNTY EROSION
CONTROL. ALL PERMIT CONDITIONS MUST BE ADHERED TO DURING THE OPERATIONS. BEFORE ANY
WORK BEGINS, OBTAIN WRITTEN ACCESS AGREEMENTS FROM PROPERTY OWNERS WHO'S PROPERTY
WILL BE CROSSED ACCESSING THE SITE. IN ADVANCE OF PERFORMING THE DREDGING OPERATIONS, THE
WATER SURFACE ELEVATION OF THE LAKE WILL BE LOWERED APPROXIMATELY 7 -FEET BY SIPHON. THE
LAKE WATER SURFACE ELEVATION SHALL NOT BE LOWERED MORE THAT [-FOOT PER DAY. THE FLOW
DISCHARGED FROM THE SIPHON SHOULD NOT CREATE EROSION DOWNSTREAM. THE LOWERED WATER
SURFACE ELEVATION WILL BE MAINTAINED FOR ENOUGH TIME TO ALLOW THE SEDIMENT THAT WILL BE
EXCAVATED TO DEWATER. ONCE THE SEDIMENT HAS BEEN DEWATERED, A TEMPORARY CONSTRUCTION
ACCESS WILL BE BUILT OUT INTO THE LAKE AS SHOW ON THE PLANS. THE INFLOW INTO THE COVES
WILL NEED TO BE DIVERTED WHILE THE SEDIMENT IS DEWATERING AND DURING CONSTRUCTION. DURING
CONSTRUCTION, INCOMING WATER SHOULD BE KEPT AWAY FROM DISTURBED EARTH TO THE GREATEST
EXTENT POSSIBLE TO PREVENT THE INFLOW FROM ENTRAINING SEDIMENT AND INCREASING THE
TURBIDITY OF THE LAKE. ALL MATERIAL EXCAVATED DURING THIS PROJECT IS TO BE TAKEN TO AN
AREA WITH AN APPROVED EROSION AND SEDIMENT CONTROL PLAN AND PERMIT.
COVE I IS LOCATED ON THE EASTERN MOST PORTION OF THE LAKE NEAR THE TENNIS COURTS WHERE
A SMALL TRIBUTARY RUNS INTO THE LAKE. OVER THE PAST FEW YEARS DEPOSITED SEDIMENT HAS
FORMED 2 PENINSULAS WITH THE INCOMING TRIBUTARY FLOWING BETWEEN THEM. DURING A MEETING
WITH WILLIAM ELLIOTT OF THE ACOE ON 1/26/16, MR. ELLIOTT AUTHORIZED THE REMOVAL OF THE TWO
PENINSULAS BACK TO THE ADJACENT SHORE LINE LOCATION AS PART OF THIS PROJECT. THE
TEMPORARY CONSTRUCTION ACCESS TO COVE I WILL ACCESS THE LAKE FROM LAKE DRIVE AND
APPROACH COVE I FROM THE NORTHEAST AS SHOWN IN THE PLAN. ONCE WORK IN COVE I HAS BEEN
COMPLETED, ALL MATERIAL THAT WAS INSTALLED AS PART OF THE TEMPORARY CONSTRUCTION
ACCESS OR THE DIVERSION OF INFLOW MUST BE REMOVED. IT IS ANTICIPATED THAT COVE I WILL BE
COMPLETED FIRST. IF THIS IS THE CASE, THE DISTURBED AREAS SHOULD BE LIGHTLY COMPACTED AND
A NEW CHANNEL SHAPED TO MINIMIZE ENTRAINMENT OF SEDIMENT AS WATER FLOWS THROUGH THE
EXCAVATED AREA AND FILLS THE EXCAVATION.
COVE 2 IS LOCATED IN THE SOUTHEASTERN CORNER OF THE LAKE NEAR AN MSD PUMP STATION OFF
OF LAKE DRIVE WHERE A SMALL TRIBUTARY RUNS INTO THE LAKE. SEDIMENT HAS ACCUMULATED IN
COVE 2 IN RECENT YEARS TO FORM A SMALL ISLAND. DURING A MEETING WITH WILLIAM ELLIOTT OF
THE ACBE ON 1/26/16, MR. ELLIOTT AUTHORIZED THE REMOVAL OF THE ISLAND AND ACCUMULATED
SEDIMENT BACK TO THE ADJACENT SHORE LINE LOCATION AS PART OF THIS PROJECT. THE
TEMPORARY CONSTRUCTION ACCESS TO COVE 2 WILL ACCESS THE LAKE FROM LAKE DRIVE AND
APPROACH COVE 2 FROM THE SOUTHEAST AS SHOWN IN THE PLAN. ACCESS THROUGH THIS AREA WILL
REQUIRE TURNING OFF OF LAKE DRIVE AT THE MSD PUMP STATION AND FOLLOWING A SMALL ASPHALT
AISLE TO THE WALKING TRAIL. THE ACCESS WILL FOLLOW THE WALKING TRAIL TO AN AREA THAT HAS
BEEN DESIGNATED TO ENTER THE LAKE IN ORDER -TO MINIMIZE THE IMPACT TO TREES. THERE ARE
SEVERAL SANITARY SEWER LINES RUNNING UNDER THE ACCESS ROAD THAT WILL NEED TO BE
PROTECTED. ENGINEERED DETAILS AND SPECIFICATIONS FOR THE PROTECTION OF THESE LINES HAVE
BEEN PREPARED AND MUST BE STRICTLY ADHERED TO. ONCE WORK IN COVE 2 HAS BEEN COMPLETED,
ALL MATERIAL THAT WAS INSTALLED AS PART OF THE TEMPORARY CONSTRUCTION ACCESS, TO
PROTECT THE SANITARY SEWER LINES, OR TO DIVERT THE INFLOW MUST BE REMOVED.
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TO BE EXCAVATED TO A DEPTH OF APPROXIMATELY 5 -FEET BELOW
THE NORMAL WATER SURFACE, Vlow'-- 5ppr
SEE DETAIL 4, SHEET C5.0.
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DISCHARGE DIVERTED STREAM OUTSIDE OF WORK AREA
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OR PIPE FLOW AROUND WORK AREA AS SHOWN ON SHEET C3.0.
SEE DETAIL 6 SHEET C5.0.
'ISLAND' MATERIAL TO BE REMOVED.
REMOVE DEPOSITED MATERIAL TO MATCH
ADJACENT SHORELINE. LOCATIONS TO BE
COORDINATED IN ADVANCE WITH ENGINEER.
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CONTRACTOR TO CONTROL'VEVCULAR AND
PEDESTRIAN TRAFFIC WHEN EQUIPMENT
ENTERING AND EXITING THE SITE.
APPROXIMATE LOCATION OF INFLOW INTO COVE 2 -
INSTALL:
SILT FENCE
SEE DETAIL 3, SHEET C5.0.
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PEDESTRIAN TRAFFIC WHEN EQUIPMENT
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TEMPORARY CONSTRUCTION ACCESS
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SEE DETAIL 1, SHEET C5.0.
ALL AREAS WHERE THE CONSTRUCTION ACCESS CROSSE!
-A OVER A SEWER LINE, THE ACCESS MUST BE CONSTRUCTE
ACCORDING TO DETAILS 4 AND 5, SHEET C5.0. IT IS THE
CONTRACTOR'S RESPONSIBILITY TO CONFIRM THE LOCAT
OF SEWER LINES IN THE PROJECT AREA-;
UPON COMPLETION, ALL MATERIAL SHALL BE REMOVED.
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RAILROAD BALLAST STONE
WIDTH TO BE EQUAL TO—
PROPOSED DRIVE WIDTH
36'-0' MINIMUM 4'-0'
EXISTING
ROAD /
6-
6' HUMP TO DIVERT RUNOFF
FROM EXISTING ROAD
NOTES:
I. A STABILIZED PAD OF CRUSHED STONE SHALL BE LOCATED WHERE TRAFFIC WILL BE ENTERING OR LEAVING A CONSTRUCTION
SITE TO OR FROM A PUBLIC STREET.
2. STONE TO BE RAILROAD TYPE BALLAST.
3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC
STREETS OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AS CONDITIONS DEMAND
AND REPAIR AND/OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT.
4. ALL SEDIMENT SPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLIC STREETS MUST BE REMOVED IMMEDIATELY.
5. WHEN NECESSARY WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A PUBLIC STREET, WHEN WASHING IS
REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE WHICH DRAINS INTO AN APPROVED SEDIMENT BASIN.
6. FILTER FABRIC SHALL BE PLACED UNDER THE ENTRANCE/EXIT AND SHALL BE MIRAFI 500 OR EQUAL.
CONSTRUCTION ENTRANCE
NOT TO SCALE
6' COIR WATTLE
18' WOODEN STAKE • 3' O.C.
RAIL AT TOP
CHANNEL MATTING-�
FLOW
`8' STAPLES @ IZ' O.C.
'USE AS NEEDED TO CONTROL STORMWATER RUNOFF
VELOCITY AND PREVENT EROSION AND SEDIMENTATION
COIR/STRAW WATTLE
NOT TO SCALE
9' HIGH RIP RAP BERM FACED WITH 157
,,WASHED STONE.
4' BREAK
PROVIDE SILT FENCE BREAKS EVERY 200
FEET OF FENCING DR AT LOW POINTS.
MIN. 10 GA
LINE WIRES
STEEL POSTS:
5' LONG W/ANCHOR PLT.
-I }' WIDE
- MIN. WT. 1.25LB/FT
- ANCHOR PLATE MIN AREA- 14SQ'
B' MAX.
VARIABLE AS DIRECTED BY THE ENGINEER
WOVEN WIRE:
- TOP 8 BOTTOM WIRES: 10 GAGE MIN.
- INTERMEDIATE WIRES: 12 } GAGE MIN.
WIRE STAPLES:
- I k LENGTH MIN.
- N0. 9 STAPLE
SILT FENCE FABRIC:
- NCDOT CLASS B
NOTES:
1. USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES
NOT EXCEED 1/4 ACRE PER 10OLF AND NEVER IN AREAS
OF CONCENTRATED FLOW.
2. SILT FENCE SHALL NOT BE USED IN DITCHES CREEKS
OR OTHER AREAS RECEIVING CONCENTRATED FLOWS.
3. SILT FENCE SHALL NOT BE USED FOR INLET
PROTECTION.
SILT FENCE
FRONT VIEW
1.33 u/uN FT STEEL POST
WOVEN WIRE FABRIC
r SILT FENCE FABRIC
c_
3 FILL SLOPE
E
n GRADE
6' MIN. COVER
OVER SKIRT
SIDE VIEW
MIN. 12-1/2 GA.
INTERMEDIATE
WIRES
NOT TO SCALE
'PENINSULA' MATERIAL TO BE
MATERIAL TO BE EXCAVI
PROPOSED LAKE BED SHAPE AND DEPTH AFTER DREDGING
NORMAL WATER SURFACE ELEVATION
APPROXIMATE LOCATION OF CURRENT LAKE BED
TENSAR 8X1200 G;OGR.D
12' BALLAST 1
6' ABC, 1
Es
COVE I CROSS-SECTION A -AI
NOT TO SCALE
TO BE PROVIDED BY WILL GENTRY
5 SEWER LINE CROSSING
NOT TO SCALE
Note: A staggered break In the sand
bag diversion will allow access to
the site from above without Slowing
\� overland Bow to go through the sit..
� dturbed/CAnabuction area , ^
Sand Bag Placement Up Slope of Construction Disturbance
Sandbag Diversion - Notes
1. The andbag dNersion shell los installed et 01e bcationc show on the plan rMw of do sib.
2. Req flab for changes In alignment o! the sandbag dNenlon shag W made in wntlny to the design approver and
arty. "nothing authority. No changes shall be made without pdor wrIftn approval.
3. No v hicle traffic across the sandbag diversion will be allowed during construction.
4. The —db.9 diversion may b"'vee or chevron shaped with outlets at both ends, or a single line flowing In one
dirion towards a single outlet See the project plan via, for site specific configuration as the drawing to the left is
typic I and not binding on this she.
S. The .urinal dimensions of a filed sandbag are considered to be 12' wide 18' long and 3' thick weighing 33 lbs.
Actu it dimensions may vary. The completed dWomicn shall be at Nest 6lnches high. Layers of sandbags shall be
sleded In a pyramid fashion as shown in the section detail on these plans i/ needed to attain the required distance
abo the undisturbed ground surface. See the detail below for treatment of irregularities In the land surface.
6. Dud g construction the sandbag diversion shall be monitored to ensue that it remains at the line and to the
elev Bare required to celled overland flow around the site. For long duration construction, maintain vagetation
acli-ent to the bags with mowing or the use of an herticide. Damaged (nipped, tam, or decayed by exposure to
UV) ags need W be replaced upon discovery.
7. At to ist weekly and after significant rainfall events the diversion shall be inspected for damage to bags, points of
eros an and deposition. Accumulated sediment that restricts capacity shag be removed and placed on the law side
of LS diversion cr in other approved lacatlons. Erosion can be addressed by realignment for flatter grade.
San bay: can be moved or additional bags added to the high side of the diversion.
e. San bay" wgI be filled with sand or fine gravel 100%< 316' and no mon than 25% 11200 sieve. Secure filled bags
with and having durability exceeding that of the material for the bags.
9. The andbag material shag be woven polypropylene, polyethylene, polyimide, or nylon with a minimum unit weight
of 4 unces per square yard. The sandbag material shall conform to the following ASTM requirements.
emoted Runo11
RedirectedRun°fi ¢
ova —
Bo nand �—
w
diverted flow At existing small dsprssslons representing points of rsncentelod runoff
the height of the sandbag diversion shall be adjusted, i.e. made higher,
so that the top surface of tit. sandbags shall hs uniform. There will be n
law points where overtopping can occur before the outlet. As shown at
left the concentrated how down slope ma/ be directed to one side or
another, or both, as shown on the plan view of the�Iconstruch- dewing:
V
Mow the area where sandbags will be placed to less
than 1 inch height and cut bwaNatiff slammed f
vegetation flush withe the ground surface. Do not Redirected Runoff
111, scrape, or otherwise disturb sad and existing
Short vegetation within the footprint or upstream of
the sandbag diversion.
Section - Sandbag Diversion
Isometric View
Property Test Method Minimum
Test Value
Grab Tensile Strength Obs.) ASTM D 1682
MD 326
Seam Strength (PPO ASTM D 4464
>81
Puncture, (bs.) ASTM D4B33
_>109
Ultraviolet Light ASTM D 4355
(%residual tensile strength)
' >70
expoaun)
Np0 (U.S.
Apparent Opening Sae ASTM D 4761 standenl
Cross ...Von of swat. slew size)
with sandbags In place PermhWity (ascond') I ASTM D4491 1 - 2.35
erected Runoh
Plan View
10. At the conclusion of—bruction restore
pr onstruction renohpattems by reproving sandbags.
SANDBAG/PIPE DIVERSION
NOT TO SCAT F
EAL
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