20090771 Ver 1_401 Application_20090709

v,.,, unimin

Environmental Affairs
Unimin Corporation
136 Crystal Drive * Spruce Pine, NC 28777
(PHONE) 828/766-6081 • (FAX) 828/765-4755
NC DWQ, 401 /Wetlands Unit
1650 Mail Service Center
Raleigh, NC, 27699-1650
08-0 7 7 1
15,o PAID
July 9, 2009
? r -_ _.- " - \ n' U 0
Subject: Pre-Construction Notification
Unimin Corporation's Schoolhouse Quartz Facility U
Schoolhouse Waste Dump Rock Toe Fill JUL 1 3 2009
Avery County, North Carolina
WETLANAS AND STOR I&IEI
Dear 401 /Wetlands Unit: R 6RANC,4
Please find enclosed a submittal package including five (5) copies of the executed
Pre-Construction Application and associated documentation for the subject project.
As part of the project we will be installing a 55' wide rock toe, a disturbance that has
been approved by the Division of Land Quality, to support an existing waste dump located
in Avery County.
One set of the Pre-Construction Application is also being submitted to the Army
Corps of Engineers, as well as one copy to the NC Wildlife Resources Commission Western
Piedmont Regional Coordinator and one copy to the US Fish and Wildlife Service.
As this project is extremely urgent in an effort to provide the support rock toe to the
ongoing waste dump, I am grateful for all efforts you can make to expedite approval. If you
have any questions or require further information, please do not hesitate to contact me at
[phone] ext. 13. Thank you very much for your help with this matter.
Sincerely,
Jeffrey S. Ferguson, P. E.
Environmental Engineer
UNIMIN CORPORATION
c: EA Files; Mike Vencill
oe-o77I
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a
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification C Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps:
I

Section 404 Permit El Section 10 Permit I

S CA., 1D
1 b. Specify Nationwide Permit (NWP) number. 44 or General Permit (GP) number.
1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No
1d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ? Riparian Buffer Authorization
le. 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:

? Yes ® No
If. 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 ® No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: Schoolhouse Waste Dump Rock Toe Fill
2b. County: Avery L51 r.
2c. Nearest municipality / town: Spruce Pine I o
2d. Subdivision name: n/a J
2e. NCDOT only, T.I.P. or state
project no: QUALITY

Na WETLANDS AND STORMwATER BRANC,4
3. Owner Information
3a. Name(s) on Recorded Deed: Unimin Corporation
3b. Deed Book and Page No. 17111007
3c. Responsible Party (for LLC if
applicable): Andrew G. Bradley, VP/Environmental Affairs
3d. Street address: 258 Elm Street
3e. City, state, zip: New Canaan, CT 06840
3f. Telephone no. 203-966-8880
3g. Fax no.: 203-966-1977
3h. Email address: [e-mail]
Page I of 11
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4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ® Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name:
5b. Business name
(if applicable):
5c. Street address:
5d. City, state, zip:
5e. Telephone no.:
5f. Fax no.:
5g. Email address:
Page 2 of 11
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S. Project Information and Prior Project History
1. Property Identification
la. Property identification no. (tax PIN or parcel ID): Parcel ID No. 181100567006
1b. Site coordinates (in decimal degrees): Latitude: 35.94222 Longitude: - -81.99978
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: 4,203 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
North Toe River
proposed project:
2b. Water Quality Classification of nearest receiving water. C
2c. River basin: French 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:
Wooded, Industrial
3b. List the total estimated acreage of all existing wetlands on the property:
estimated 5-10 acres (4,203 acres)
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
estimated 24,000+ feet (4,203 acres)
3d. Explain the purpose of the proposed project:
Fill -0.15 acres of wetlands with rock to create a rock toe for support of an existing waste dump area. The rock toe and
waste dump designs have been approved by the Division of Land Quality.
3e. Describe the overall project in detail, including the type of equipment to be used:
This project consists of the the construction of a 55' wide rock fill to be utilized as a rock toe to support an existing waste
area. Backhoe, bulldozer, front-end loader, dump trucks, trackhoes and hand tools will be utlized for installation.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
®Yes ? No ? Unknown
project (including all prior phases) in the past?
Comments:
4b. If the Corps made the jurisdictional determination, what type
? Preliminary ® Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Axiom Environmental, Inc.
Name (if known): Grant Lewis/Scott Davis Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
June 29, 2009 (copy attached)
5. Project History
5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file' instructions.
Division of Land Quality approved waste dump designs, rock toe fill designs and Sediment & Erosion Plan on June 1,
2005.
Page 3 of 11
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6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 4 of 11
C. Proposed Impacts Inventory
1. Impacts Summary
I a. Which sections were completed below for your project (check all that apply):
® Wetlands ? Streams - tributaries ? Buffers
® Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary
W1 ®P ? T fill ® Yes
? No ® Corps
® DWQ -0.01
W2 ®P ? T fill ® Yes
? No ® Corps
® DWQ -0.09
W3 ®P ? T fill ® Yes
? No ® Corps
® DWQ -0.05
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ? P ? T ? Yes ? Corps
? No ? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts -0.15
2h. Comments:
3. Stream 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. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - (PER) or (Corps - 404, 10 stream length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ? T ? PER ? Corps
? INT ? DWQ
S2 ? P ? T ? PER ? Corps
? INT ? DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P ? T ? PER ? Corps
? INT ? DWQ
3h. Total stream and tributary impacts
3i. Comments:
Page 5 of 11
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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 individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number - (if applicable) Type of impact Waterbody type Area of impact (acres)
Permanent (P) or
Temporary
01 ® P ? T Pond 1 fill pond -0.01
02 ?P(]T
03 ?PEIT
04 ?POT
4E Total open water impacts -0.01
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose (acres)
number of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ? No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
? Neuse ? Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number - Reason Buffer Zone 1 impact Zone 2 impact
Permanent (P) or for Stream name mitigation (square feet) (square feet)
Temporary impact required?
61 ?POT ?Yes
? No
B2 OPEIT ?Yes
? No
B3 [I PEl T ?Yes
? No
6h. Total buffer impacts
6i. Comments:
Page 6 of 11
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
To the greatest extent possible, fill has been minimized. Minimal rock fill must be utilized to support existing DLQ approved
waste dump.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Keep machinary on soil road as much as possible, disturb few trees as possible, disturb soil as little as possible, etc.
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 ® No
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps

2c. If yes, which mitigation option will be used for this
projects ? Mitigation bank

El Payment to in-lieu fee program
? Permittee Responsible Mitigation
3. Complete If Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) Type Quantity
3c. Comments:
4. Complete If Making a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ? Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d. Buffer mitigation requested (DWO only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments:
5. Complete If Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 7 of 11
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6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation? ? Yes ® No
6b. If yes, then 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 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
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 fund).
6h. Comments:
Page 8 of 11
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E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
I a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
? Yes ? No
Comments:
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 0%
2b. Does this project require a Stormwater Management Plan? ? Yes ® No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Sed & Erosion Plan approved by DLQ.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
? Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? n/a
? Phase II
3b. Which of the following locally-implemented stormwater management programs ? NSW
? USMP
apply (check all that apply): ? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No
attached?
4. DWQ Stonmwater Program Review
? Coastal counties
El HQW
4a. Which of the following state4mplemented stormwater management programs apply ? ORW
(check all that apply): ? Session Law 2006-246
® Other: DLQ
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ® No
5. DWQ 401 Unit Stonmwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ® Yes ? No
Page 9 of 11
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F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal/state/local) funds or the ? Yes ® No
use of public (federal/state) land?
1b. 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 (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (if so, attach a copy of the NEPA or SEPA final 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 .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b. 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.
n/a
Page 10 of 11
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5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes ® No
habitat?
5b. Have you checked with the USFWS conceming Endangered Species Act ? Yes ® No
impacts?
E] Raleigh
5c. If yes, indicate the USFWS Field Office you have contacted. ? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
Axiom Environmental performed a Threatened/Endagnered Species Survey (see attached). The results were findings of
No Effect due to no habitat for any species other than bog turtle (which does not require a biological conclusion).
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
The project consists of small wetland areas that cannot support fish habitat.
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 ? Yes ® No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
i
There are no known areas having historic or cultural preservation status in the vicinity of this project.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? Review of FEMA floodplain maps (attached)
Andrew G. Bradley,
W/Environmental Affairs 2 C^
?1 7 r2..-

Applicant/Agent's Printed Name Applicant/Agen s ignature
(Agent's signature is valid only if an authorization letter from the applicant I
is
rovided
) d Date
?,.,? log
p
.
Page 11 of 11
PCN Form - Version 1.3 December 10, 2008 Version
Axiom Environmental, Inc.
20 Enterprise Street, Suite 7 Raleigh, North Carolina 27607 919-696-3045
Axiom Environmental, Inc.
May 15, 2009
Ms. Amanda Jones
U.S. Army Corps of Engineers - CESAW-RG-A
Asheville Regional Office
151 Patton Avenue, Room 108
Asheville, NC 28801-5006
RE: Section 404 Jurisdictional Area Delineation 09-007
Unimin Suttles Schoolhouse Mine
Avery County, NC
Dear Amanda,
This letter concerns a Section 404 jurisdictional area delineation conducted by Axiom
Environmental, Inc. (Axiom) in association with the proposed construction of a retaining wall
adjacent to mining activities at the Suttles Schoolhouse mine site operated by Unimin Corporation
(Unimin) in Avery County, NC. Axiom conducted the Section 404 jurisdictional area delineation on
April 6, 2009. The study area is a corridor of approximately 585 feet in length and 10 to 25 feet in
width. It is generally oriented on a north-south axis and encompasses approximately 0.22 acres.
The study area is located along the outer edge of the floodplain of the North Toe River and is
separated from the toe of a steep slope adjacent to mining operations by a soil road approximately 10
feet in width. Axiom is interested in obtaining U.S. Army Corps of Engineers (USACE) verification
of the delineation.
Attached to this letter are the following items.
• Vicinity map of the mine site and proposed retaining wall location.
• Surveyed plat of the Section 404 jurisdictional area delineation (3 sheets).
• A pair of completed USACE Routine Wetland Determination data forms.
• A completed USACE Approved Jurisdictional Determination form.
Jurisdictional wetlands within the study area consist of three small depressions that represent the
upper reaches of a large wetland complex which extends west beyond the study area boundary.
Wetland area soils exhibit low-chroma colors and redoximorphic features (mottles), while
characteristic wetland hydrology within these areas includes saturated soils, standing water, oxidized
rhizospheres, and a prevalence of hydrophytic vegetation. Hydrology within the study area appears
to be provided primarily by stormwater runoff and seepage through the slope from adjacent mining
operations and from seepage from a small stormwater pond located in the northern portion of the
study area. Characteristic vegetation within wetland areas consists primarily of saplings and shrubs
with some interspersed herbaceous growth and includes black willow (Salix nigra), tag alder (Alnus
Axiom Environmental, Inc.
Ms. Amanda Jones
May 15, 2009
Page 2
serrulata), red maple (Acer rubrum), soft rush (Juncus effusus), and bullrush (Scirpus cyperinus).
Jurisdictional wetland areas within the study area total approximately 0.15 acre.
It is the understanding of Axiom that the proposed activities may be permitted under Nationwide
Permit (NWP) 44 - Mining Activities. This NWP states that potential fill is limited to 0.5 acre and
that a Pre-Construction Notification (PCN) form is required for all activities.
Again, we are interested in obtaining USACE verification of our Section 404 jurisdictional area
delineation as well as any guidance in regards to the use of NWP 44 and any potential mitigation
requirements. If you would like to visit the site, please let us know and we will coordinate a visit
with Unimin (due to mine safety concerns, a representative of Unimin must be present to escort us
on site). Please let me know if you need any additional information or have questions about the
information provided in this package.
Thank you for your assistance with this important project.
Yours truly,
AXIOM ENVIRONMENTAL, INC.
Scott Davis
Senior Scientist
CC: Jeff Ferguson, Unimin Corporation

?,
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,;,??,
DEED REFERENCE(S):
BEING A PORTION OF THE PROPERTY
RECORDED IN D.B. 171, PIG 1007 OF THE
AVERY COUNTY REGISTRY.
GENERAL NOTES.
1) NOTE: NO A657RACT TITLE, NOR TITLE COAfAIITMENT, NOR
RESULTS OF TIRE SEARCH WERE FURNISHED TO THE
SURVEYOR. ALL DOCUMENTS OF RECORD REVIEWED ARE
NOTED HEREON (SEE REFERENCES). THERE MAY EXIST
07HER DOCUMENTS OF RECORD TINT MAY AFFECT THIS
SURVEYED PARCEL.
2) ALL JURISDICTIOANL WETLAND A• OPEN WATER
POND AREAS DETERMINED AND FAGGED BY
AXIOM ENVIRONMENTAL DURINCY APRIL 2009.
3) ALL JURISDICTIOMI. WETLAND & OPEN WATER
POND AREAS WERE FIELD LOCATED BY K2
DESIGN GROUP, P.A. AFTER BEING MARKED BY
AXIOM ENVIRONMENTAL. INC.
LINE DATA ALONG
ONPEN WATER POND 1
LINE LENGTH BEARING
I I 9.48' h4'1.
L4 "H
I _
16 I _
LINE DATA ALONG
JUEMMFIONAL WEI AND 1
JUNE LENGTH BEARING
I.% 18-lit' 54141;. I1
IR '_'?7' S15't H47'I_
14 ;i 1, ",2-w
1.1e .:`ssw
,17
111 rl'74:Iw
TOTAL WATERS OF THE UNITED STATES
THE TOTAL JURISDICTIONAL WETLAND AREA IS
0.15 ACRES± BY COMPUTER.
THE TOTAL OPEN WATER POND AREA IS
0.01 ACRES± BY COMPUTER.
SURVFYOR'S CFRIIFICAlI WS
Surveyor's disclaimer: No attempt was made to locate any cemeteries, wetlands, hazardous
material sites, underground utilities or any other features above, or below ground other
than those shown.
1 certify that the survey is of another category (Jurisdictional Welland & Open Water Pond
lines of description), such as the recombination of existing parcels, a court-ordered survey,
or other exception to the definition of a subdivision.
I certify that the GPS control tie down for this survey was performed to class 1 FGCC
specifications and that static GPS field procedures and coordinates were obtained by least
squares adjustment using Ashtech Solutions version 2.60. That the GPS control tie down
was performed on April 6. 2009 using three Tholes Navigation Promork II receivers. NI
coordinates are based an NCGS Monument 'MORRISON' referenced to NCSPC NAD 83/86.
1 JOHN A. RUDOLPH , certify that this plat was drawn under my supervision from (an actual
survey made under my supervision) (deed description recorded in Book SEE, PageBffS.,
etc.) (other); that the ratio of precision as calculated by latitudes and departures is
1/10_000+; that the boundaries not surveyed are shown as broken lines plotted from
Information found in D.B. _)k Page XX_; that this plat was prepared in accordance with
G.S. 47-30 os amended. Witness my original signature, registration number, and seal this
06th day of April , A.D. 2AM.
SEAL OR STAMP
`?LUU r n unejr4
s ?? C?Oggr
oCusfor L-4194
I, ?'?-' 'c 3 ; .......... l , 4,
9
SEAL
- L-4194
•,?o? S R 's,
rrrrrrrrr n rLLL,,•,
LEGEND:
L7S - Existing bon stake
EP - Existing I- Pipe
NMC - Non Monumented Corner
R/W - Right-Of-Way
EOP - Edge Of Pavement
NIF
IPS - Now or F
iron Pipe ;;7_
O.O.j
ECM - ExieBny Concrete Monument
LTC -Control Comer
D.B, - Deed Book
PG - Page
NCSR - North Carolina Secondary Road
HWY - Highway
FEM 4 _ Federal Emergency
Management Agency
MNS - Mag Nm7 Set
RCP - Reinforced Concrete Pipe
CUP - Corrugated Metal Pipe
Ele - Easement Boundary
- _ Flo? Along Jurisdtch'anal
Wetlands and Open Water Pond
Non-Monumented Corner
a _
(Unless Otherwise Noted)
ISS _ Iron Stoke Set, No. 5 Reber
Flush with Ground
?trl„?l Jurisdictional Wetland Inside
Il?il li Study Area Boundary
pp77TT??ii11 Open Watts Pond Made
YLLL d Study Area Boundary
Flogged Wetkmd Line Outside
A ..__. ? Study Area Boundary
THE AREA REPRESENTED BY THIS PLAT IS NOT LOCATED IN
A ROOD HAZARD BOUNDARY ACCORDING TO FDLA NAP
N BER(S) 37710180000J ZONES}. X, DATED: DECEMBER
AxfOm ErTVirOnmental Inc.
A20 EnF?1F street, Sttlte 7
Raleigh NC 27607
919-21 t-1693
Axiom Emilmnimental. Inc.
SHEET 1 OF 3
JURISDICTIONAL WETLAND Q
& OPEN WATER POND LINES OF DESCRIPTION
FOR
UNIMIN
CORPORATION
DRAWN BY: FGR TOE RIVER TOWNSHIP
6688 U.S. Hwy. tO East AVERY COUNTY NORTH CAROLINA
DATE: 04/09 Goldsboro, NC 27534 50 25 0 50 100 150
DWG. NO., AXI044WP09 TeL [phone] _ Fax; (919) 7/808/
GRAPHIC SCALE 1" = 50'
SURVEYED Br: JAR. DESIGN GROUP, P.A. L2dE5Ig11@SIIddLMI`Ik.OEI
JURISDICTIONAL BOUNDARY CERTIFICATION:
THIS CERTIFIES THAT THIS COPY OF THIS PUT
ACCURATELY DEPICTS THE BOUNDARY OF THE
JURISDICTION OF SECTION 404 OF THE CLEAN WATER
ACT AS DETERMINED BY THE UNDERSIGNED ON THIS
DATE. UNLESS THERE IS A CHANGE IN THE LAW OR
OUR PUB USHED REGULATIONS, THIS DETERMINATION OF
SECTION 4D4 JURISDICTION MAY BE RELIED UPON FOR
A PERIOD NOT TO EXCEED FINE YEARS FROM THIS
DATE. THIS DETERMINATION WAS MADE UTILIZING THE
1987 CORPS OF ENGINEERS WETLANDS DELINEATION
MANUAL.
REGULATORY OFFICIAL
TIRE
DATE
USAGE ACTION ID
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JURISDICTIONAL WETLAND &
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FOR
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AVERY COUNTY NORTH CAROLINA
50 25 O 50 TOO 150
GRAPHIC SCALE I* = 50'
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FOR
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TOE RIVER TOWNSHIP
AVERY COUNTY NORTH CAROLINA
f0 5 0 10 20 30
GRAPHIC SCALE 1" = 10"
4/OE/00
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?? SEAL 9`
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: (?iw?'?'?? Date: 4, -'- ° 9
Applicant/Owner: County:
Investigator: AK-10^ ,??iy %? F rl?tL / off; s State:
Do Normal Circumstances exist on the site? ,-Yes ) No Community ID:
Is the site significantly disturbed (Atypical Situation)? ?e.1 No Transect ID: al
Is the area a potential Problem Area? Yes No ) Plot ID: (/1??''37
If needed, explain on reverse.
\ IC/?CT A TI/1 \I
VVV 1
Dominant Plant Species
Stratum Indicator
Dominant Plant Species Stratum Indicator

r r! S-/ra3 ,;
2. CAC tJ 10.
11.
4. ??r ?YJ ? ?C S i'C 0 V ?a ``
-
-- 12.
5. 0 S?\ T7
- 13.
6. 14.
7. 15.
8. 16.
"Percent of Dominant Species that are OBL, FACW or FAC
excluding FAC-).

Remarks:
uvnon! nr_v
Recorded Data (Describe in Remarks):
_ Stream, Lake, or Tide Gauge
Aerial Photographs
_ Other
No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
)nundated
? Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Field Observations: Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water: r' (in.) Oxidized Root Channels in Upper 12 Inches
Water-Stained Leaves
Depth to Free Water in Pit: L (in.) Local Soil Survey Data
R FAG-Neutral Test
Depth to Saturated Soil: V (in.) Other (Explain in Remarks)
Remarks:
SOILS
Map Unit Name
Drainage Class SG /'1yi?
(Series and Phase):
Field Observations
Y
rN o\
Taxonomy (Subgroup) ('D?? >ih'rrr Confirm Mapped Type? es
Profile Descriptions:
Depth
Matrix Color
Mottle Colors
Mottle Abundance/
Texture, Concretions,
(inches) Horizon Munsell Moist (Munsell Moist) Size/Contrast Structure, etc.
v-

-? "? { 7_ S / ?`?Y? 3 F? fir , r?is':i> ?o,?-y ?
Hydric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks
WETLAND DETERMINATION
Hydrophytic Vegetation Present? 'Ies No (Circle)
Welland Hydrology Present? No (Circe) ?l
Hydric Soils Present? Yes L/ Is this Sampling Point Within a Wetland? Yes --No
Remarks
Approved by HQUSACE 3/92
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Date: y-,/ - y?F
Applicant/Owner: County: XAZZI
Investigator: ?k a, ????'4'?-^E^'A? Av?l State: Ale
Do Normal Circumstances exist on the site? es- No Community ID:
Is the site significantly disturbed (Atypical Situation)? W) No Transect ID:
Is the area a potential Problem Area? Yes C No's Plot ID: c?L`?LO?
If needed, explain on reverse.
•TA\I
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. /,",.r s ,?cyi,? S (,4c°w t 9.
2. Ar ?yl i?,f3? . _ -?,4 C. 10.
3. 7vNl vS?l `? f/dC + 11.
12.
5.s S S - 13.
6.C.y ?//-itr S [?i?C 14.
7. 15.
8. 16.
"Percent of Dominant Species that are OBL, FACW or FAC"
- / o O 5
03
(excluding FAC- . 1
Remarks:

Recorded Data (Describe in Remarks)
_ Stream, Lake, or Tide Gauge
Aerial Photographs
_ Other
No Recorded Data Available : Wetland Hydrology Indicators:
Primary Indicators:
- Inundated
L/7 Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Field Observations: 7 Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water: (in.) ? Oxidized Root Channels in Upper 12 Inches
/ Water-Stained Leaves
Depth to Free Water in Pit: 6 (in.) Local Soil Survey Data
FAC-Neutral Test

Depth to Saturated Soil: (in.) Other (Explain in Remarks)
Remarks:
SOILS
Map Unit Name
Drainage Class
(Series and Phase):
Field Observations
Yes o
Taxonomy (Subgroup) ?? A°` ' Confirm Mapped Type?
Profile Descriptions:
Matrix Color
Mottle Colors Mottle Abundance/
Texture, Concretions,
Depth
(inches) Horizon
(Munsell Moist)
(Munsell Moist) Size/Contrast
Structure, etc.
D-/
Y --?

Hydric Soil Indicators:
Histosol Concretions
High Organic Content in Surface Layer in Sandy Soils
Histic Epipedon Organic Streaking in Sandy Soils
Sulfidic Odor Listed on Local Hydric Soils List
Aquic Moisture Regime
z-' Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks
D
Hydrophytic Vegetation Present? e;; No (Circle) (Circle)
Welland Hydrology Present? (' No
: Is this Sampling Point Within a Wetland? Yes No
es No
Hydric Soils Present?
/r'1ri?/n?G )Gr7jr?%'? A,VO ASS 1A?./1 ;J ?fi a,7?..,
Remarks
5-A10 (2
?ti Y /?'r??,0 ?lE f •F,c?% So F erp °
Ct?j
60, Approved by HQUSACE 3192

1
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD):
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:
C. PROJECT LOCATION AND BACKGROUND INFORMATION:
State: NC County/parish/borough: Avery City: Spruce Pine
Center coordinates of site (lat/long in degree decimal format): Lat. 35.942988° N, Long. -81.999874° W.
Universal Transverse Mercator:
Name of nearest waterbody: North Toe River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: North Toe River
Name of watershed or Hydrologic Unit Code (HUC): 06010108-010020
® Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date:
Q Field Determination. Date(s):
SECTION II: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There Are:nb "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
Waters subject to the ebb and flow of the tide.
Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There Are "waters ofthe U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply):
El TNWs, including territorial seas
El Wetlands adjacent to TNWs
Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs
El Non-RPWs that flow directly or indirectly into TNWs
Q Wetlands directly abutting R.PWs that flow directly or indirectly into TNWs
E Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Q Wetlands adjacent to non-IZPWs that flow directly o? indirectly into TNWs
[] Impoundments of jurisdictional waters
El Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: linear feet: width (ft) and/or acres.
Wetlands: 0.15 acres.
c. Limits (boundaries) of jurisdiction based on 1981" lm4atioq Martial
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable) :3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
' Boxes checked below shall be supported by completing the appropriate sections in Section III below.
2 For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
' Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.D.1.; otherwise, see Section III.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2. Wetland adjacent to TNW
Summarize rationale supporting conclusion that wetland is "adjacent":
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information reg. riling characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section III.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section III.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbody4 is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section III.B.2 for any onsite wetlands, and Section III.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section III.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: 37,685 acre's
Drainage area: -29,000 ;'ores
Average annual rainfall: 58:8 inches
Average annual snowfall: (totalled with rainfall) inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
? Tributary flows through Pick List tributaries before entering TNW.
Project waters are Pick L(si river miles from TNW.
Project waters are Pick Mist river miles from RPW.
Project waters are Pick'tist aerial (straight) miles from TNW.
Project waters are 1?ck,dit aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain:
Identify flow route to TNWS:
Tributary stream order, if known:
' Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that applyZ
Tributary is: ? Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: feet
Average depth: feet
Average side slopes: Pick'List.
Primary tributary substrate composition (check all that apply):
? Silts ? Sands ? Concrete
? Cobbles ? Gravel ? Muck
? Bedrock ? Vegetation. Type/% cover:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain:
Presence of run/riffle/pool complexes. Explain:
Tributary geometry: PCwl1St ,.
Tributary gradient (approximate average slope): %
(c) Flow:
Tributary provides for: P.,ick'ltist
Estimate average number of flow events in review area/year Ptc1t T.ist
Describe flow regime:
Other information on duration and volume:
Surface flow is: Pjibk sl. Characteristics:
Subsurface flow: 1% kTist. Explain findings:
? Dye (or other) test performed:
Tributary has (check all that apply):
? Bed and banks
? OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
? vegetation matted down, bent, or absent ?
? leaf litter disturbed or washed away ?
? sediment deposition ?
? water staining ?
? other (list):
El Discontinuous OHWM.' Explain:
If factors other than the OHWM were used to determ
[] High Tide Line indicated by:
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
ine lateral extent of CWA jurisdiction (check all that apply):
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain:
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
? Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
Properties:
Wetland size: 0.15 acres
Wetland type. Explain: Hydrology seeping through slope from adjacent mining operations.
Wetland quality. Explain: Low quality. Located along outer edge of North Toe River floodplain. Disturbed forest,
composed primarily of sapling and shrub species. Hydrology is primarily stormwater runoff seeping from an stormwater pond and
through slope from adjacent mining operations. Little water storage in loamy sand soils on slope, no shoreline stabilization potential.
Project wetlands cross or serve as state boundaries. Explain: No.
(b) General Flow Relationship with Non-TNW:
Flow is: Inter mttent.flow. Explain:
Surface flow is: Not present
Characteristics: Hydrology does not display signs of surface flow. Surface water is occasionally present as evidenced
by water-stained leaves; however, no evidence of drainage patterns or scour was observed. During field investigations, hydrology
ranged from saturated soils to free water within 6 inches of the soil surface.
Subsurface flow: U0 pgwn. Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
® Not directly abutting
® Discrete wetland hydrologic connection. Explain: Hydrology from wetland area is expected to flow down-slope
until reaching North Toe River or a large impounded area created by historic clay mining which then drains to North Toe River.
Hydrology is not expected to reach study area from general flooding of the North Toe River, as study area is approximately 20 vertical
feet and 585 horizontal feet from North Toe River; however, sandy Udorthents mapped soil type is expected to provide flow route
(likely subsurface) to North Toe River. Significant nexus expected based upon position of studya area along floodplain boundary.
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are P)ck'List river miles from TNW.
Project waters are 1 (ar_Iess) aerial (straight) miles from TNW.
Flow is fiom: Pick'Lisjt.
Estimate approximate location of wetland as within the 10,0' $Ogrir floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known: Some sand overwash from mining activities.
(iii) Biological Characteristics. Wetland supports (check all that apply):
® Riparian buffer. Characteristics (type, average width): Primarily sapling/shrub within study area. Floodplain is primarily
mature forest, with some areas of younger (disturbed) growth primarily along roadway corridors.
® Vegetation type/percent cover. Explain:Yooung woody species such as Acer rubrum, Salix nigra, and Alnus serrulata.
Occasional herbaceous species including Juncus effusus and Scirpus cyperinus.
? Habitat for:
? Federally Listed species. Explain findings: Surveys for federally-protected species were conducted within the study
area at the time of field delineations. No habitat was found to be present..
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis: 1
Approximately ( 0.15 ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (YIN) Size (in acres)
N 0.15
Summarize overall biological, chemical and physical functions being performed: Removal of sediment which appears to
occasionally overwash from mining operations. 3 small wetlands depicted in surveyed plat which represent the upper extents of a
larger wetland complex..
C. SIGNIFICANT NEXUS DETERMINATION
A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical. and/or biological integrity.of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is ssot inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D: Significant nexus expected due to location along edge of floodplain of North Toe River.
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
TNWs: linear feet width (ft), Or, acres.
? Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
? Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial:
? Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: linear feet width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWss that flow directly or indirectly into TNWs.
? Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
? Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial iy Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW:
Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section 111.13 and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: 0.15 acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
? Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
0 Demonstrate that impoundment was created from "waters of the U.S.," or
Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):10
which are or could be used by interstate or foreign travelers for recreational or other purposes.
from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
which are or could be used for industrial purposes by industries in interstate commerce.
Interstate isolated waters. Explain:
Other factors. Explain:
'See Footnote k 3.
To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook.
1D Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: linear feet width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
? Wetlands: acres.
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
? If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
? Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
? Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
? Other: (explain, if not covered above):
Provide acreage estimates for non-jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
judgment (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
? Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
Provide acreage estimates for non-jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply -checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
® Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
? Data sheets prepared/submitted by or on behalf of the applicant/consultant.
? Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
? Data sheets prepared by the Corps:
Corps navigable waters' study:
? U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
® U.S. Geological Survey map(s). Cite scale & quad name: Spruce Pine and Linville Falls 7.5-minute quadrangles.
USDA Natural Resources Conservation Service Soil Survey. Citation: Soil Survey of Avery County, NC (2005).
National wetlands inventory map(s). Cite name:
State/Local wetland inventory map(s):
? FEMA/FIRM maps:
? 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Photographs: ? Aerial (Name & Date):
or ? Other (Name & Date):
? Previous determination(s). File no. and date of response letter:
? Applicable/supporting case law:
? Applicable/supporting scientific literature:
? Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD:
Axiom Environmental, Inc.
20 Enterprise Street, Suite 7, Raleigh, North Carolina 27607 919-215-1693
Axiom Environmental, Inc.
April 22, 2009
Mr. Steve Taylor
Unimin Corporation
PO Box 588
Spruce Pine, NC 28777
RE: Jurisdictional Area Delineations and Threatened/Endangered Species Surveys,
Suttles Schoolhouse Mine, Avery County, North Carolina 09-007
Dear Mr. Taylor:
Axiom Environmental, Inc. (AXE) biologists have completed jurisdictional area delineations and
federally protected threatened and endangered species habitat evaluations within the proposed study area.
Jurisdictional area delineations and habitat evaluations for federally protected species were conducted on
April 6, 2009. The study area is a corridor of approximately 585 feet in length and 10 to 25 feet in width.
It is generally oriented on a north-south axis and encompasses approximately 0.22 acres. The study area
is located along the outer edge of the floodplain of the North Toe River and is separated from the toe of a
steep slope adjacent to mining operations by a soil road of approximately 10 feet in width. A location
map and a surveyed plat of jurisdictional area delineations are attached to this letter.
Jurisdictional Areas
Jurisdictional surface waters located within the study area consist of a small (approximately 0.01 acre
within the study area) stormwater pond in the northern portion of the study area. Waters flow to this area
via a culvert from adjacent mining operations and drain outside of the study area. Water within the pond
was very turbid, and hydrophytic vegetation such as black willow (Salix nigra) and horsetail (Equisetum
arvense) occurs sparsely along the margins.
Jurisdictional wetland areas within the study area consist of three wetland areas that represent the upper
reaches of a large wetland complex that extends west beyond the study area boundary. Wetland area soils
exhibit low-chroma colors and redoximorphic features (mottles), while characteristic wetland hydrology
within these areas includes saturated soils, standing water, oxidized rhizospheres, and a prevalence of
hydrophytic vegetation. Characteristic vegetation within these areas includes black willow, tag alder
(Alnus serrulata), soft rush (Juncus effusus), bullrush (Scirpus cyperinus), and red maple (Acer rubrum).
Jurisdictional wetland areas within the study area total approximately 0.15 acre.
Federally-Protected Species
Species with federal classifications of Endangered or Threatened are protected under the Endangered
Species Act of 1973, as amended (16 U.S.C. 1531 et seq.). The status of "Endangered" refers to "any
species which is in danger of extinction throughout all or a significant portion of its range;" "Threatened"
refers to "any species which is likely to become an endangered species within the foreseeable future
throughout all or a significant portion of its range" (16 U.S.C. 1532).
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Based on the most recently updated county-by-county database of federally listed species in North
Carolina as posted by the USFWS (http://nc-es.fws.gov/es/countyfr.html, accessed April 6, 2009), nine
federally protected species are listed for Avery County. The following table lists the federally protected
species and indicates if potential habitat exists within the study area for each. A detailed description of
each species habitat requirements and biological conclusions based upon habitat evaluations follow the
table.
Table 1. Federall protected species listed for Ave County, NC
Common Scientific Federal Habitat
Name Name Status Habitat within
stud area
Threatened Bogs, marshes, and wet pastures,
Bog turtle
g Clemmys due to usually in association with aquatic or yes
muhlenbergii Similarity of semi-aquatic vegetation and small,
Appearance shallow streams over soft bottoms
Carolina Glaucomys Spruce-fir forests and hardwood
northern sabrinus Endangered forests adjacent to spruce-fir forests No
flying squirrel coloratus at elevations above 4000 feet
Virginia big- Corynorhinus Thermally stable portions of caves
eared bat townsendii Endangered and mines (generally between 36 and No
vir inianus 54 degrees F
Damp, well-drained moss mats
growing on rock outcrops and
Spruce-fir Microhexura
Endangered boulders in well shaded areas within
No
moss spider montivaga Fraser fir and red spruce forest
communities of the highest
elevations >5400 feet
Blue Ridge Solidago Rooted in fine sands in cracks of
goldenrod spithamaea Threatened granite outcrops at high elevations No
>4000 feet
Heller's High-elevation ledges of rock
blazing star Liatris helleri Threatened outcrops and cliffs in shallow, acid No
soils and full sun
Roan Hedyotis Crevises of rock outcrops at high-
mountain purpurea var. Endangered elevation summits (>4200 feet) and No
bluet montana in gravelly soils on grassy balds near
summit outcrops
High-elevation cliffs, outcrops, and
Spreading Geum radiatum Endangered steep slopes in full sun and in No
avens gravelly soils on grassy balds near
summit outcrops >5000 feet
On rocks in high humidity in high
Rock gnome Gymnoderma
Endangered elevations and large rock outcrops in
No
lichen lineare deep river gorges in low elevations
>5000 feet
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Bog turtle
The bog turtle is a small turtle reaching an adult size of approximately 3 to 4 inches. This otherwise
darkly-colored species is readily identifiable by the presence of a bright orange or yellow blotch on the
sides of the head and neck (Martof et al. 1980). The bog turtle has declined drastically within the
northern portion of its range due to over-collection and habitat alteration. As a result, the USFWS has
listed the bog turtle as Threatened within the northern portion of its range and, within the southern portion
of its range, which includes North Carolina, the bog turtle has been listed as Threatened due to Similarity
of Appearance to the northern population (November 4, 1997 Federal Register). The listing allows
incidental take of bog turtles in the southern population resulting from otherwise lawful activity. The bog
turtle is typically found in bogs, marshes, and wet pastures, usually in association with aquatic or semi-
aquatic vegetation and small, shallow streams over soft bottoms (Palmer and Braswell 1995). In North
Carolina, bog turtles have a discontinuous distribution in the Mountains and western Piedmont.
Until recently, bog turtle has been known as Clemmys muhlenbergii. Recently however, several species
previously listed under the genus Clemmys have been placed in the genus Glyptemys due to sufficient
evidence separating them from members of Clemmys (Holman and Fritz 2001). Glyptemys muhlenbergii
is an accepted taxon for the species Clemmys muhlenbergii by the USFWS (Personal communication,
David Rabon, USFWS; February 25, 2005).
T (S/A) species are not subject to Section 7 consultation and a biological conclusion for this species is
not required.
Carolina northern flying squirrel
The Carolina northern flying squirrel is an isolated, endangered subspecies of the more wide-ranging
northern flying squirrel (Glaucomys sabrinus fuscus). Flying squirrels are nocturnal and have a loose,
fully furred fold of skin on each side of the body between the wrists and the ankles that enable the
squirrels to glide through the air. Carolina flying squirrel can be distinguished from the similar southern
flying squirrel (G. volans) by larger size (ranging from 10.2 to 12.0 inches total length) and by having
gray rather than white bases of the ventral hairs (Weigl 1987).
The Carolina flying squirrel typically occurs in spruce-fir forests and mature hardwood forest adjacent to
spruce-fir forests at elevations above 4000 feet (Weigl 1987). Endemic to the Appalachians of western
North Carolina and eastern Tennessee, this subspecies is known from the Great Smoky Mountains, Roan
Mountain, and Mount Mitchell.
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL). No portion of the study area lies within or adjacent to spruce-
fir forests. Therefore, habitat does not exist for Carolina flying squirrel, and activities within the
study area will have NO EFFECT on this species.
Virginia big-eared bat
The Virginia big-eared bat is a medium sized bat that is approximately 3.9 inches long and weighing 7 to
12 grams. The forearms measure 1.5 to 2 inches, the tail is 1.8 inches, and the hind foot is 0.4 inch long.
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This bat's long ears (greater than one inch) and facial glands on either side of the snout are quite
distinctive. Fur is light to dark brown depending upon the age of the individual and the subspecies.
These bats utilize caves year-round as roost sites. During the winter, most populations hibernate in a few
cold caves that provide optimum temperatures for hibernation. In Kentucky and North Carolina, roost site
temperatures in December, January, and February range from approximately 36 to 54 degrees Fahrenheit.
During the summer, females congregate in warm maternity caves to raise their young. Roost site
temperatures probably range from 59 to 64 degrees Fahrenheit in these maternity caves. The males
apparently disperse into smaller groups separate from the females during the summer. The insect diet of
the Ozark big-eared bat (a close relative of the Virginia big-eared bat) was found to consist primarily of
lepidopterans, dipterans, coleopterans, and homopterans in Oklahoma (Clark 1991).
Biological Conclusion: No caves or mine shafts lie within any portion of the study area.
Therefore, habitat does not exist for Virginia big-eared bat, and activities within the study area
will have NO EFFECT on this species.
Spruce-fir moss spider
This spider is approximately 0.13 inch long, yellowish brown to reddish-brown, and hairy. The
chelicerae project well forward from the carapace, and the posterior spinnerets are very long. There are
no markings on the abdomen. The spruce-fir moss spider is known from only the highest peaks (5400
feet or higher) in the Southern Appalachian Mountains of North Carolina and Tennessee that support red
spruce (Picea rubens)-Fraser fir (Abies.fraseri) forests. Six populations are known, in The Great Smoky
Mountains National Park, in the Pisgah and Cherokee National Forests, and on Grandfather Mountain.
Populations on individual peaks are often very small. The spider's typical habitat is damp, mossy rock
outcrops in shaded areas in the spruce-fir forests, where it constructs tube-shaped webs between the moss
and rock. The species is very sensitive to desiccation. The scarcity of suitable spruce-fir habitat and its
ongoing decline are the primary factors in the spruce-fir moss spider's rarity. Decline of the Fraser fir
due to the balsam woody adelgid (Adelges piceae) results in thinning and destruction of the forest canopy,
which in turn creates locally drastic changes in microclimate including increased temperatures and
decreased humidity. This adversely affects the moss mats which the spider depends on. The spider's
habitat is also vulnerable to fire, storms, timbering, chemical applications, and human trampling.
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL), does not consist in any portion of spruce-fir forest, and does
not contain any rock outcrops. Therefore, habitat does not exist for spruce-fir moss spider, and
activities within the study area will have NO EFFECT on this species.
Blue Ridge goldenrod
Blue Ridge goldenrod is an erect, perennial herb growing to 16 inches in height with simple leaves in a
basal rosette and along the stem. Leaves are serrate, ciliate, smooth to slightly scabrous above and
glabrous beneath, and progressively reduced in size and more sessile towards the inflorescence. The
unpleasant aroma of this plant leads to an alternative common name, skunk goldenrod. Blue Ridge
goldenrod can be distinguished from theother two goldenrod species having a corymbiform inflorescence
and golden rays by its shorter height, involucre bracts not being striate-nerved, and distribution at high
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altitudes in the mountains (Massey et al. 1983). Vegetative portions of the plant may emerge in July and
persist through October (Massey et al. 1983). Flowering occurs from late July to September (Kral 1983).
Blue Ridge goldenrod is found on rocky summits above approximately 4000 feet elevation in the
mountains. Typically found in full sun, this plant may be found rooted in fine sands that have
accumulated in cracks and pockets of granitic rocks or bluff ledges, or associated with grasses and sedges
on grass balds contiguous to rock outcrops (Kral 1.983). In North Carolina, the current distribution may
be restricted to Avery and Mitchell Counties (Amoroso and Finnegan 2002).
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL) and does not contain any rock outcrops. Therefore, habitat does
not exist for Blue Ridge goldenrod, and activities within the study area will have NO EFFECT
on this species.
Heller's blazing star
Heller's blazing star is an erect herbaceous perennial with glabrous stems that reaches heights of 4 to 20
inches. The leaves are simple, linear to lanceolate, alternate, and arranged spirally along the stem. Leaf
size is variable, with a gradual decrease in size up the stem. The inflorescence consists of compact heads
arranged in a raceme-like fashion along the stem. The heads typically contain seven to ten tubular florets
which may be purple to lavender in color. Heller's blazing star is distinguished from related species by
shorter height and relatively short pappus (modified calyx lobes) half or less the length of the corolla tube.
Flowers are produced from July to September, with fruiting occurring from August to October (Massey et
al. 1983).
Heller's blazing star has been found on rocky summits at high elevations in the mountains of western
North Carolina. This species typically is found in full sun growing in shallow, acidic soils on or around
granitic outcrops, ledges, and cliff faces (Kral 1983, Massey et al. 1983).
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL) and does not contain any rock outcrops. Therefore, habitat does
not exist for Heller's blazing star, and activities within the study area will have NO EFFECT on
this species.
Roan mountain bluet
Roan Mountain bluet, formerly treated as a variety of the summer bluet (Houstonia [=Hedyotis]
purpurea), is a low, erect to spreading perennial herb with a squarish stem typically growing to 6 inches
high. The leaves are opposite, sessile, rounded basally but taper to a pointed tip and have smooth,
toothless margins. Small, deep purple, tubular flowers are produced on small terminal clusters in June
and July with fruiting occurring in July and August. It differs from the more common H. purpurea by
having larger, smooth-edged leaves, and by larger flowers, capsules, and seeds (Weakley 1993).
Roan Mountain bluet is endemic to the high Blue Ridge mountains of North Carolina and Tennessee,
mostly from 4200 to 6300 feet in elevation. It grows in crevices of rock outcrops as well as in thin,
gravelly soils of grassy balds near summit outcrops (Weakley 1993).
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Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL) and does not contain any rock outcrops or grassy balds.
Therefore, habitat does not exist for Roan Mountain bluet, and activities within the study area
will have NO EFFECT on this species.
Spreading avens
Spreading avens is an erect, densely hairy, perennial herb to 20 inches tall. A basal rosette of odd-
pinnately compound leaves is produced from a horizontal rhizome. These leaves are long stalked and
terminated by a large kidney-shaped lobe; tiny leaflets are usually present below the terminal lobe (Kral
1983). Small, sessile, serrated leaves are found on the flowering stem. Lanceolate sepals and relatively
long petal lengths of 0.5 to 0.8 inches help differentiate spreading avens from related species (Massey et
al. 1983). Bright yellow, five-petaled flowers approximately 2.4 to 3.1 inches across are produced from
June to August; these are followed between July and October by hairy achenes with a persistent, straight
style approximately 0.2 inches long (Massey et al. 1983). Vegetative parts may emerge in May and
persist through October.
Spreading avens usually occurs at elevations greater than 5000 feet in mountain grass balds or in grassy
clearings in heath balds as well as in crevices of granitic rock; it cannot tolerate shading or crowding
(Kral 1983). Spreading avens is found in a few northwestern counties of North Carolina, and in nearby
counties of Tennessee.
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL) and does not contain any rock outcrops or grassy balds.
Therefore, habitat does not exist for spreading avens, and activities within the study area will
have NO EFFECT on this species.
Rock gnome lichen
The rock gnome lichen is small, squamulose (strap-like) lichen in the reindeer moss (lichen) family. This
species is similar to lichens in the genus Cladonia in having terminal portions of its strap-like lobes that
are blue-gray on the upper surface and shiny-white on the lower surface; rock gnome lichen differs from
these other lichens by having blackened lobe bases. The lichen grows nearly parallel to the rock surface
to which it is attached, but the tips curl up to a near vertical orientation. Reproduction appears to be
asexual, with colonies spreading clonally. Rock gnome lichen is typically found growing in association
with a distinctively colored, reddish-brown moss (Andreaea) (Murdock 1993).
The rock gnome lichen is endemic to the mountains of North Carolina and Tennessee. Most populations
occur above 5000 feet in elevation in areas subject to frequent fog cover, but the species has been found at
lower elevations in deep gorges where a similarly high humidity regime is present. Rock gnome lichen
typically occurs on vertical rock faces subject to intermittent seepage (Murdock 1993).
Biological Conclusion: The study area lies entirely within elevations ranging from 2636 to 2646
feet above mean sea level (MSL), does not occur within a deep river gorge, and does not contain
any rock outcrops or areas of particularly high humidity regimes. Therefore, habitat does not
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exist for rock gnome lichen, and activities within the study area will have NO EFFECT on this
species.
AXE is standing by to request agency concurrence of this delineation. Please let us know when you have
reviewed this information and would like for us to continue with this process. If we can provide
additional information or clarification in support of this letter, please do not hesitate to call us at 919-215-
1693 or 919-696-3045. Thank you for considering AXE for this important project.
Sincerely,
AXIOM ENVIRONMENTAL, INC.

Scott G. Davis
Senior Scientist
Enclosures: Study area location map
Surveyed plat of jurisdictional areas within the study area
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References
Amoroso, J.L. and J. T. Finnegan. 2002. Natural Heritage Program List of the Rare Plant Species of
North Carolina. North Carolina Natural Heritage Program, Division of Parks and Recreation,
N.C. Department of Environment, Health and Natural Resources, Raleigh. 111 pp.
Clark, Brenda S. 1991. Activity Patterns, Habitat Use, and Prey Selection by the Ozark Big-Eared Bat
(Plecotus townsendii ingens). PhD Dissertation. Oklahoma State University, Stillwater, OK. 80
PP.
Holman, J.A. and U. Fritz, 2001. A new emydine species from the Middle Miocene (Barstovian) of
Nebraska, USA, with a new generic arrangement for the species of Clemmys sensu McDOWELL
(1964) (Reptilia: Testudines: Emydidae. Zoo]. Abhandlgn. (Dresden)) 51: 331-353.
Kral, R. 1983. A Report on Some Rare, Threatened, or Endangered Forest-related Vascular Plants of the
South. United States Department of Agriculture, Forest Service, Southern Region, Atlanta, GA.
Technical Publication R8-TP 2. 1305 pp.
Martof, B.S., W.M. Palmer, J.R. Bailey, and J.R. Harrison III. 1980. Amphibians and Reptiles of the
Carolinas and Virginia. The University of North Carolina Press, Chapel Hill, NC. 264 pp.
Massey, J.R., D.K.S. Otte, T.A. Atkinson, and R.D. Whetstone. 1983. An Atlas and Illustrated Guide to
the Threatened and Endangered Vascular Plants of the Mountains of North Carolina and Virginia.
Southeastern Forest Experiment Station, Asheville, North Carolina. 218 pp.
Murdock, N. 1993. Endangered and Threatened Wildlife and Plants: Proposed Endangered Status for
Gymnoderma Lineare. Federal Register 58 (247): 68623-68627.
Palmer, W.M. and A.L. Braswell. 1995. Reptiles of North Carolina. The University of North Carolina
Press, Chapel Hill, NC. 412 pp.
Schafale, M.P. and A.S. Weakley. 1990. Classification of the Natural Communities of North Carolina:
Third Approximation. Natural Heritage Program, Division of Parks and Recreation, N.C.
Department of Environment, Health, and Natural Resources. Raleigh. 325 pp.
United States Fish and Wildlife Service (USFWS). 2002. Spruce-fir Moss Spider in North Carolina.
North Carolina Ecological Services, Asheville, NC.
United States Fish and Wildlife Service (USFWS). 2001. Addendum To Economic Analysis Of Critical
Habitat Designation For The Spruce-Fir Moss Spider. Region 4, Atlanta, GA.
United States Fish and Wildlife Service (USFWS). 2009. Avery County Endangered Species,
Threatened Species, and Federal Species of Concern (online). Available:
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April 22, 2009
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http://www.fws.gov/southeast/es/county%201ists.htm [April 3, 2009]
Wildlife Service.

United States Fish and
Weakley, A. S. 1993. Rubiaceae (Madder Family): Houstonia (Bluet). Pp. 362-364 in: Guide to the
Flora of the Carolinas and Virginia: Working Draft of 27 August 1993. North Carolina Natural
Heritage Program, Division of Parks and Recreation, Department of Environment, Health,
and Natural Resources. 575 pp.
Weigl, P.D. 1987. Glaucomys sabrinus coloratus (Handley), Northern Flying Squirrel. Pp. 12-15 in:
M.K. Clark (ed.), Endangered, Threatened, and Rare Fauna of North Carolina: Part I. A Re-
evaluation of the Mammals. Occasional Papers of the North Carolina Biological Survey 1987-3.
52 pp.
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..._r data L009 Tele Atlas
1 of 1 7/2/2009 3:29 PM
Soil Map-Avery County, North Carolina
35° 56'48"
35° 566"
N ?
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N °
r Map Scale. 1.6,270 d punted on A size (8.5" x 11") sheet.
0
N Meters
°o 0 50 100 200 300
Feet
0 200 400 800 1,200
Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
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Page 1 of 3
35° 56'48"
35° 566"
Soil Map-Avery County, North Carolina
MAP LEGEND
MAP INFORMATION
Area of Int erest (AOI) m Very Stony Spot Map Scale: 1:6,270 if printed on A size (8.5" • 11') sheet.
Area of Interest (AOI) t Wet Spot The soil surveys that comprise your AOI were mapped at 1:12,000.
Soils Other Please rely on the bar scale on each map sheet for accurate map
Soil Map Units measurements.
Special Lino Features
Special Point Features - Gully Source of Map. Natural Resources Conservation Service
Blowout Web Soil Survey URL: hftp./Nmbsoilsurvey.nres.usda.gov

® Borrow Pd Short Steep Slope Coordinate System: UTM Zone 17N NAD83
X pay Spot Other This product is generated from the USDA-NRCS certified data as of
Political Features the version date(s) listed below.
e Gosed Depression 0 Cities
Soil Survey Area: Avery County, North Carolina
Gravel Pit Water Features Survey Area Data: Version 14, Jul 21, 2008
.. Gravelly Spa Oceans Date(s) aerial images were photographed: 811t200617/31/2006
tkSl Landfill Streams and Canals The orthophoto or other base map on which the soil lines were
A Lave Flow Transportation compiled and digitized probably differs from the background
a++ Rails imagery displayed on these maps. As a result, some minor shifting
,16 Marsh or swamp of map unit boundaries may be evident.
R Mine or Quarry rv Interstate Highways
O Miscellaneous Water - US Routes
p Perennial Water Major Roads
?. Rock Outcrop ti Local Roads
} Saline Spot
.. Sandy Spot
Severely Eroded Spit
p Sinkhole
Slide or Shp
g Sodic Spot
E Spoil Area
Q Stony Spot
I!SD4 Natural Resources Web Soil Survey 7/6/2009
ii" Conservation Service National Cooperative Soil Survey Page 2 of 3
Soil Map-Avery County, North Carolina
Map Unit Legend
Avery County, North Carolina (NC011)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CeE Chandler-Micaville complex, 30 to 50 percent slopes, 38.4 22.5%
stony
CeF Chandler-Micaville complex, 50 to 95 percent slopes, 2.0 1.2%
stony
FaD Fannin fine sandy loam, 15 to 30 percent slopes 12.2 7.2%
M-W Miscellaneous water 15.1 8.8%
NkA Nikwasi loam, 0 to 3 percent slopes, frequently flooded 9.3 5.5%
RoA Rosman loam, 0 to 3 percent slopes, occasionally 19.5 11.4%
flooded
RsB Rosman sandy loam, 0 to 5 percent slopes, frequently 1.7 1.0%
flooded
SaC Saunook loam, 8 to 15 percent slopes 3.6 2.1%
ShD Saunook-Thunder complex, 15 to 30 percent slopes, 0.2 0.1%
very stony
SsB Statler loam, 0 to 6 percent slopes, rarely flooded 29.4 17.2%
Ua Udorthents, loamy 26.7 15.7%
UdC Udorthents-Urban land complex, 2to 15 percentslopes 6.2 3.6%
W Water 6.4 3.7%
Totals for Area of Inter est 170.7 100.0%
LSDA Natural Resources Web Soil Survey 7/612009
;1? Conservation Service National Cooperative Soil Survey Page 3 of 3
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NCDENR
North Carolina Department of Environment and Natura
Division of Land Resources
James D. Simons, PG, PE
Director and State Geologist
Mr. Jeffery S. Ferguson, PE
Environmental Engineer
Unimin Corporation
PO Box 588
Spruce Pine, NC 28777
RE: Permit No. 06-03
Brushy Creek Mine
Avery County
French Broad River Basin
Dear Mr. Ferguson:
Land Quality Section
June 1, 2005
Michael F. Easley, Governor
William G. Ross Jr., Secretary
G': A i¢ F.cly
Iz,c-rE T,alz.o,C
Your recent request to have the above referenced mining permit modified has been
approved. The modification is to extend the elevation of the ultimate crest height for the
tailings disposal area adjacent to the airport. The elevation would be increased from 2,710
feet to a total of 2,780 feet, as indicated on the maps and details (Sheets 2 through 4) last
revised April 14, 2005, and supplemental information submitted by Pinnacle Engineering dated
March 3, 2004 and April 21, 2005. A copy of the modified permit is enclosed.
The conditions in the modified permit were based primarily upon the initial application.
Modifications were made as indicated by the modification request and as required to insure
compliance with The Mining Act of 1971. The expiration date, mine name and permit number
shall remain the same as before the modification. I would like to draw your particular attention
to the following conditions where minor additions or changes were made: Operating Condition
No. 4H, 41, and 8, and Reclamation Condition No. 3.
The issuance of a mining permit and/or any modification to it does not supersede local
zoning regulations. The responsibility of compliance with any applicable zoning regulations
lies with you.
As a reminder, your permitted acreage at this site is 4,203 acres and the amount of
land you are approved to disturb is 283.17 acres.
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 •919-733-4574 / FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604
Resou rces
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper
Mr. Ferguson
Page Two
Please review the modified permit and contact Kristin Hicklin, Assistant State Mining
Specialist, at [phone] should you have any questions concerning this matter.
Sincerely,
Floyd Williams, PG, CPG, CPESC
State Mining Specialist
Land Quality Section
FRW/kh
Enclosures
cc: Mr. Janet Boyer, Regional Engineer - LQS, w/enclosures
Mr. J.C. Burngarner, PE, Pinnacle Engineers, PC, w/enclosures
Ms. Shannon Deaton-WRC, w/enclosures
Mr. Bradley Bennett-DWQ, w/enclosures
Mr. William Gerringer-DOL, Mine and Quarry Bureau, w/o enclosures
L,•E? F.?sf
jTErE i, e0,f
Unimin Phase II
Waste Area Modification
Revisions
4/21/2005

PINNACLE
ENGINEERS PC
81 Weaverville Road, Suite 4
Asheville, North Carolina 28604
828/658-1704
CONTENTS
Narrative
Map of Altapass Drainage Below Unimin
Calculations
USGS Altapass Data Sheet
HEC-2 Runs
3 Pages
1 Page
3 Pages
1 Page
6 Pages
,age
PINNACLE
ENGINEERS PC
81 Weaverville Road • Suite 4
Asheville • North Carolina 28804
828/658-1704
Ms. Kristin Hicklin
Assistant State Mining Specialist
Land Quality Section
Division of Land Resources
DENR
1612 Mail Service Center
Raleigh, NC 27699-1612
Re: Permit No. 06-03
Brushy Creek Mine
Avery County
French Broad River Basin
Dear Ms. Hicklin:
Mr. Jeffrey S. Ferguson, P.E. of Unimin asked Pinnacle Engineers, P.C. to
respond to your letter of August 31, 2004 concerning the Phase II Waste Area
Modification application.
The following numbered responses correspond to the numbers in your letter.
1. As you know, the existing dike (constructed 15 - 20 years ago) extends to
within 15 feet of the riverbank at the narrowest section. The proposed rockfill
will be placed after removal of a portion of the existing dike. The excavated
material will be disposed of within the waste area controlled by the dike. The
rock will contain little erodable soil. We have shown a silt fence to be installed 5
feet downstream of the construction area.
2. The erosion control measures and inlet locations have been revised on both
sheets 3 / 4 and 4 / 4 for clarity. Inlets will be protected by geotextile fabric as the
system shows. The area drained by these inlets is an active tailings disposal area
and will not be stabilized with vegetation until the disposal area is full, some 15 to
20 years in the future. The lowermost drop inlets along the main discharge line
will be protected by the same system and they will receive surface flow from the
Ms. Kristin Hicklin
Brushy Creek Mine
4/20/05
Page 2
slopes which are stabilized with topsoil and vegetation on an incremental basis.
Please note that the discharge from all drop inlets is into an existing tailings pond.
3. The tailings slopes are on a 3 to 1 (horizontal to vertical) slope and will be
compacted to 95% of Standard Proctor maximum dry density which should
minimize sloughing. Stabilizing the slopes requires removal of the outer 1.5 feet,
replacement with 1.0 feet of topsoil which is "tracked in" by a dozer and seeded.
4. The existing dike slope is within 15 feet of the river bank. This situation was
discussed with Floyd Williams, P.G. and Mel Nevils, P.E. of the Land Quality
Section in a meeting on-site on January 11, 2005. It was agreed that Unimin
could receive a variance from the 25 feet buffer if
a) The rock size to be used in the rockfill would be sufficient to withstand
the velocity from a 100-year frequency flood.
b) A construction sequence was used that provided for removing only as
much of the tailings embankment as could be replaced in one day.
a) The 100-year return frequency flood at this site was determined from data
provided by the U.S. Geological Survey which maintains a river gauge
downstream at Atlapass. The drainage area below Unimin to the river gauge
was compared to the total for the gauge to determine the 100-year frequency flow.
This flow was then routed through the section in question with the aid of the
HEC-2 computer program to determine depth of flow.
Shear analysis indicates that 12 inch size stone will be sufficient to withstand the
velocity from the 100-year storm. Calculations are attached.
b) The construction sequence discussed at the on-site meeting will not work here
based upon the results of the soil test borings at the top of the existing dike. The
top ten feet of the embankment slope is 3 to 4 blows per foot silty sand. Cutting
away of successive sections of the toe would almost certainly induce a slide.

Ms. Kristin Hicklin
Brushy Creek Mine
4/20/05
Page 3
In a recent telephone conversation with Mel Nevels, P.E., I proposed that an
initial section (about 10 feet in width) be cut from the tailings embankment and
rockfill placed up to the 100-year flood level (2623.71 feet msl or about 3.7 feet
higher than the top of bank at the section). This procedure would extend about
100 feet on either side of the closest approach of the existing dike to the North
Toe River. Following this initial rock fill the slope would be cut from the top
down to provide the 3 to 1 slope and the additional 45 feet to complete the
construction of the rockfill berm.
We trust that these responses satisfy your questions. Should you have additional
questions please call.
Very Truly Yours,
Pinnacle Engineers, P.
J.C. Bumgarnt,
President
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Version 9.6.2; May 1991 **+++.++ ;
RUN DATE 11APR05 TIME 13:28:24
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x X x x x x X
X x x x X
xxxx xxx xXxx x xXxxX XXXXx
X X X x x
x x x x x x
x x xxxxxxx xxxxx xxxxxxx
' U.S. ARMY CORPS OF ENGINEERS +++e
' HYDROLOGIC ENGINEERING CENTER
' 609 SECOND STREET, SUITE D
* DAVIS, CALIFORNIA 95616-4687
[phone]
Uri m??, - l..3 4fj-;S1r????
Iao??- Skb?,Y,
11APR05 13:28:24
PAGE 1
THIS RUN EXECUTED 11APR05 13:28:24
•
w
EC
2
WATER SURFACE PROFILES
Version 4.
aaw+www•ww.•w 6.2; May
••ww•••ww• 1991
w+....+••++w••
[Unimin
T2Flood Study - 100yr Storm - Weighted Estimates - 11,000cfs
ICHECK INQ NINV IDIR STRT METRIC HVINS Q
2
J2 NPROF [PLOT PRFVS XSECV XSECH FN ALLDC IBW
I -1 -1
J3 VARIABLE CODES FOR SUMMARY PRINTOUT
100 105 200
0.1 0.1 0.045
QT 1 11000
ET
0.1 0.1 0.045
1 13 160 254
2624 0 2622 75 2620 107
2612 252 2616 254 2618 265
GR 2624 289 2626 300 2628 320
0.1 0.1 0.045
2 17 37 118 330 330
2630 0 2628 5 2626 15
GR 2620 30 2618 33 2616 37
GR 2616 118 2618 122 2620 125
2626 160 2628 200 2630 248
0.1 0.1 0.045
3 14 315 395 320 320
GR 2626 0 2624 170 2622 230
2616 322 2616 393 2618 395
2624 405 2626 410 2628 412
WSEL FQ
2617
CHNIM ITRACE
2616 160
2620 271
330
2624 25
2613 38
2622 132
320
2620 285
2620 400
2630 475
2612 160
2622 280
2622 28
2613 116
2624 138
2618 315
2622 401
11APR05
SECNO
Q
TIME
SLOPE
*PROF 1
13:28:24
DEPTH CWSEL
QLOB QCH
VLOB VCH
XLOBL XLCH
CRIWS WSELK EG HV HL OLOSS L-BANK ELEV
QROB ALOB ACH AROB VOL TWA R-BANK ELEV
VROB XNL XNCH XNR WTN ELMIN SSTA
XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST
?ECNO 1.000
3720 CRITICAL DEPTH ASSUMED
1.000 7.73 2619.73 2619.73 2617.00 2622.99 3.26 .00 .00 2616.00
11000.0 248.0 10641.7 110.2 92.2 722.7 34.5 .0 .0 2616.00
.00 2.69 14.72 3.19 .100 .045 .100 .000 2612.00 110.56
.014318 0. 0. 0. 0 i0 0 .00 159.63 270.19
* ECNO 2.000
01 HV CHANGED MORE THAN HVINS
3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO 1.50
2.000 10.71 2623.71 .00 .00 2626.00 2.29 3.01 .00 2616.00
11000.0 158.3 10648.4 193.3 48.6 863.1 64.4 6.9 1.0 2616.00
.01 3.26 .39 3.00 lOC 045 .100 .000 2613.00 25.43
.006323 330. 330. 2 0 0 .00 111.70 137.14

ECNO 3.000
80 CROSS SECTION 3.00 EXTENDED .42 FEET
01 HV CHANGED MORE THAN HVINS
3.000 10.42 2626.42 .00 .00 2627.65 1.24 1.65 .00 2618.00
11000.0 2465.9 8357.6 176.5 968.4 824.9 63.4 11.3 2.9 2618.00
.02 2.55 10.13 2.78 .100 .045 .100 .000 2616.00 .00
.004272 320. 320. 320. 2 0 0 .00 410.42 410.42
PAGE 2
*HEC 2*WATERtSURFACE+PROFILES****+******** U.S. ARMY CORPS OF ENGINEERS
* * HYDROLOGIC ENGINEERING CENTER
Version 4.6.2; May 1991 * * 609 SECOND STREET, SUITE D +
+ DAVIS, CALIFORNIA 95616-4687
RUN DATE 11APR05 TIME 13:32:27 * [phone],,,,+'* .*++
X X xx xxxx xxxxx xxxxx
x x x x x x x
x x x x x
xxxxxxx xxxx x xxxxx xxxxx
x x x x x
x x x x x x
x x xxxxxxx xxxxx xxxxxxx
C)o
I 11APR05 13:32:27
I;E--C--;-W-A-T--E-R- S--U-R?F-AC-E ... P R-0--FI.L-E-S .........
Version 4. 6.2; May 1991
lUnimin
T2Flood Study - 500yr Storm - Weighted Estimate - 16,000cfs
11 ICHECK INQ NINV IDIR STRT METRIC HVINS
2
J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC
I -1 -1
J3 VARIABLE CODES FOR SUMMARY PRINTOUT
100 105 200
0.1 0.1 0.045
QT 1 16000
ET
0.1 0.1 0.045
1 13 160 254
2624 0 2622 75 2620 107
2612 252 2616 254 2618 265
'GR 2624 289 2626 300 2628 320
0.1 0.1 0.045
2 17 37 118 330 330
2630 0 2628 5 2626 15
GR 2620 30 2618 33 2616 37
(GR 2616 118 2618 122 2620 125
2626 160 2628 200 2630 248
0.1 0.1 0.045
=x1 3 14 315 395 320 320
"GR 2626 0 2624 170 2622 230
2616 322 2616 393 2618 395
2624 405 2626 410 2628 412
PAGE 1
THIS RUN EXECUTED 11APR05 13:32:27
Q WSEL FQ
2617
IBW CHNIM ITRACE
2616 160 2612
2620 271 2622
330
2624 25 2622
2613 38 2613
2622 132 2624
320
2620 285 2618
2620 400 2622
2630 475
160
280
28
116
138
315
401
11APR05 13:32:27 PAGE 2
SEC NO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS L-BANK ELEV
Q QLOB QCH QROB ALOB ACH AROB VOL TWA R-BANK ELEV
TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST
PROF 1
SECNO 1.000
720 CRITICAL DEPTH ASSUMED
1.000 9.85 2621.85 2621.85 2617.00 2625.58 3.73 .00 .00 2616.00
16000.0 868.7 14815.0 316.3 231.6 922.1 78.2 .0 .0 2616.00
.00 3.75 16.07 4.04 .100 .045 .100 .000 2612.00 77.37
.012319 0. 0. 0. 0 13 0 .00 201.96 279.33
'SECNO 2.000
2.000 12.32 2625.32 .00 .00 2628.86 3.54 3.28 .00 2616.00
16000.0 291.2 1531 4.,4 394.5 72.3 993.8 106.1 9.1 1.3 2616.00
.01 4.03 1 41 3.72 .100 .045 .100 .000 2613.00 18.38
.008176 330. 330. 2 0 0 .00 134.19 152.57
SECNO 3.000
280 CROSS SECTION 3.00 EXTENDED 3.30 FEET
,.3301 HV CHANGED MORE THAN HVINS
302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO 1.67
3.000 13.29 2629.29 .00 .00 2630.32 1.03 1.47 .00 2618.00
16000.0 5247.3 10421.4 331.3 1874.7 1055.1 137.8 24.7 3.4 2618.00
02 2.80 9.88 2.40 .100 .045 .100 .000 2616.00 .00
.002924 320. 320. 320. 2 0 0 .00 452.97 452.97
L,'Ef? FiciJ
`if?G lf+?t ?,4-T
f7?E?.E %/?Y10?
Unimin Phase II
Waste Area Modification
Revisions
4/21/2005

PINNACLE
ENGINEERS PC
8'I Weaverville Road. Suite 4
Asheville, North Carolina 2880=4
828/658-1704
CONTENTS
Narrative
Map of Altapass Drainage Below Unimin
Calculations
USGS Altapass Data Sheet
HEC-2 Runs
3 Pages
1 Page
3 Pages
1 Page
6 Pages
'die
PINNACLE
ENGINEERS PC
81 Weaverville Road • Suite 4
Asheville • North Carolina 28804
828/658-1704
Ms. Kristin Hicklin
Assistant State Mining Specialist
Land Quality Section
Division of Land Resources
DENR
1612 Mail Service Center
Raleigh, NC 27699-1612
Re: Permit No. 06-03
Brushy Creek Mine
Avery County
French Broad River Basin
Dear Ms. Hicklin:
Mr. Jeffrey S. Ferguson, P.E. of Unimin asked Pinnacle Engineers, P.C. to
respond to your letter of August 31, 2004 concerning the Phase II Waste Area
Modification application.
The following numbered responses correspond to the numbers in your letter.
1. As you know, the existing dike (constructed 15 - 20 years ago) extends to
within 15 feet of the riverbank at the narrowest section. The proposed rockfill
will be placed after removal of a portion of the existing dike. The excavated
material will be disposed of within the waste area controlled by the dike. The
rock will contain little erodable soil. We have shown a silt fence to be installed 5
feet downstream of the construction area.
2. The erosion control measures and inlet locations have been revised on both
sheets 3 / 4 and 4 / 4 for clarity. Inlets will be protected by geotextile fabric as the
system shows. The area drained by these inlets is an active tailings disposal area
and will not be stabilized with vegetation until the disposal area is full, some 15 to
20 years in the future. The lowermost drop inlets along the main discharge line
will be protected by the same system and they will receive surface flow from the
Ms. Kristin Hicklin
Brushy Creek Mine
4/20/05
Page 2
slopes which are stabilized with topsoil and vegetation on an incremental basis.
Please note that the discharge from all drop inlets is into an existing tailings pond.
3. The tailings slopes are on a 3 to 1 (horizontal to vertical) slope and will be
compacted to 95% of Standard Proctor maximum dry density which should
minimize sloughing. Stabilizing the slopes requires removal of the outer 1.5 feet,
replacement with 1.0 feet of topsoil which is "tracked in" by a dozer and seeded.
4. The existing dike slope is within 15 feet of the river bank. This situation was
discussed with Floyd Williams, P.G. and Mel Nevils, P.E. of the Land Quality
Section in a meeting on-site on January 11, 2005. It was agreed that Unimin
could receive a variance from the 25 feet buffer if:
a) The rock size to be used in the rockfill would be sufficient to withstand
the velocity from a 100-year frequency flood.
b) A construction sequence was used that provided for removing only as
much of the tailings embankment as could be replaced in one day.
a) The 100-year return frequency flood at this site was determined from data
provided by the U.S. Geological Survey which maintains a river gauge
downstream at Atlapass. The drainage area below Unimin to the river gauge
was compared to the total for the gauge to determine the 100-year frequency flow.
This flow was then routed through the section in question with the aid of the
HEC-2 computer program to determine depth of flow.
Shear analysis indicates that 12 inch size stone will be sufficient to withstand the
velocity from the 100-year storm. Calculations are attached.
b) The construction sequence discussed at the on-site meeting will not work here
based upon the results of the soil test borings at the top of the existing dike. The
top ten feet of the embankment slope is 3 to 4 blows per foot silty sand. Cutting
away of successive sections of the toe would almost certainly induce a slide.
,,Ie?
Ms. Kristin Hicklin
Brushy Creek Mine
4/20/05
Page 3
In a recent telephone conversation with Mel Nevels, P.E., I proposed that an
initial section (about 10 feet in width) be cut from the tailings embankment and
rockfill placed up to the 100-year flood level (2623.71 feet msl or about 3.7 feet
higher than the top of bank at the section). This procedure would extend about
100 feet on either side of the closest approach of the existing dike to the North
Toe River. Following this initial rock fill the slope would be cut from the top
down to provide the 3 to 1 slope and the additional 45 feet to complete the
construction of the rockfill berm.
We trust that these responses satisfy your questions. Should you have additional
questions please call.
Very Truly Yours,
Pinnacle Engineers, P.
,Ole
1
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7 JOB NO.
SHEET NO.
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PINNACLE
ENGINEERS PC
81 Weaverville Road • Suite 4
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j 826/658-1704
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**HEC±2+WATER •SURFACE *PROFILES
*+
**+*+*+**

*
Version 9. 6.2; May 1991 +
* RUN DATE 11APR05 TIME 13:28:24
x x xxxxxxx xxxxx xxxxx
x x x x x x x
x x x x x
xxx xxxx xxxx x xxxxx xxxxx
x x x x x
x x x x x x
x x xxxxxxx xxxxx xxxxxxx
* U.S. ARMY CORPS OF ENGINEERS +*
* HYDROLOGIC ENGINEERING CENTER +
* 609 SECOND STREET, SUITE D
* DAVIS, CALIFORNIA 95616-4687 +
[phone]

11APR05 13:28:24
PAGE 1
THIS RUN EXECUTED 11APR05 13:28:24
JEC,2+WATER +SURFACE PROFILES
Version 4.6.2; May 1991
T2Flood Study - 100yr Storm - Weighted Estimates - 11,000cfs
ICHECK INQ NINV IDIR STRT METRIC HVINS Q
2
J2 NPROF [PLOT PRFVS XSECV XSECH FN ALLDC IBW
I -1 -1
J3 VARIABLE CODES FOR SUMMARY PRINTOUT
100 105 200
0.1 0.1 0.045
QT 1 11000
ET
0.1 0.1 0.045
1 13 160 259
2624 0 2622 75 2620 107
2612 252 2616 254 2618 265
GR 2624 289 2626 300 2628 320
0.1 0.1 0.045
2 17 37 118 330 330
2630 0 2628 5 2626 15
GR 2620 30 2618 33 2616 37
GR 2616 118 2618 122 2620 125
2626 160 2628 200 2630 248
0.1 0.1 0.045
3 14 315 395 320 320
GR 2626 0 2624 170 2622 230
2616 322 2616 393 2618 395
2624 405 2626 410 2628 412
2616
2620
330
2624
2613
2622
320
2620
2620
2630
WSEL FQ
2617
CHNIM ITRACE
160 2612 160
271 2622 280
25 2622 28
38 2613 116
132 2624 138
285 2618 315
400 2622 401
475
1LAPR05
SECNO
Q
TIME
SLOPE
*PROF 1
13:28:24
DEPTH CWSEL
QLOB QCH
VLOB VCH
XLOBL XLCH
CRIWS WSELK EG HV HL OLOSS L-BANK ELEV
QROB ALOB ACH AROB VOL TWA R-BANK ELEV
VROB XNL XNCH XNR WTN ELMIN SSTA
XLOBR ITRIAL IDC ICONT CORAR TOPWID ENDST
?ECNO 1.000
3720 CRITICAL DEPTH ASSUMED
1.000 7.73 2619.73 2619.73 2617.00 2622.99 3.26 .00 .00 2616.00
11000.0 248.0 10641.7 110.2 92.2 722.7 34.5 .0 .0 2616.00
.00 2.69 14.72 3.19 .100 .045 .100 .000 2612.00 110.56
.014318 0. 0. 0. 0 i0 0 .00 159.63 270.19
* ECHO 2.000
01 HV CHANGED MORE THAN HVINS
3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO 1.50
2.000 10.71 2623.71 .00 .00 2626.00 2.29 3.01 .00 2616.00
11000.0 158.3 10648.4 193.3 48.6 863.1 64.4 6.9 1.0 2616.00
.01 3.26 TT-3-4? 3.00 .100 .045 .100 .000 2613.00 25.43
.006323 330. 330. 2 0 0 .00 111.70 137.14
ECNO 3.000
80 CROSS SECTION 3.00 EXTENDED .42 FEET
01 HV CHANGED MORE THAN HVINS
3.000 10.42 2626.42 .00 .00 2627.65 1.24 1.65 .00 2618.00
11000.0 2465.9 8357.6 176.5 968.4 824.9 63.4 17.3 2.9 2618.00
.02 2.55 10.13 2.78 .100 .045 .100 .000 2616.00 .00
.004272 320. 320. 320. 2 0 0 .00 410.42 410.42
PAGE 2
tHEC±2#WATER eSURFACE *PROFILES +*t;`* „****• ± U.S. ARMY CORPS OF ENGINEERS
HYDROLOGIC ENGINEERING CENTER
Version 9.6.2; May 1991 * 609 SECOND STREET, SUITE D
DAVIS, CALIFORNIA 95616-9687
*RUNtDATE++..t1APR05..,.T*ME,..13`32:27 , ,....i..=..(916)t756.1,04 ..............
X X XXXXXXX xxxxx xxxxx
x X X X X X X
X X X X x
XXXXXXX XXXX X XXXXX XXXXX
X X X X x
x X X X X X
X X XXXXXXX XXXXX XXXXXXX

d S-E r/y?
11APR05 13:32:27
+....+.
3EC-2 WATER .....++.+.
SURFACE P ..++...........
ROFILES
Version 4 .6.2; May 1991
lUnimin
T2Flood Study - 500yr Storm - Weighted Estimate - 16,000cfs
11 ICHECK INQ NINV IDIR STRT METRIC HVINS
2
J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC
I -1 -1
J3 VARIABLE CODES FOR SUMMARY PRINTOUT
100 105 200
0.1 0.1 0.045
QT 1 16000
ET
0.1 0.1 0.095
1 13 160 259
2624 0 2622 75 2620 107
2612 252 2616 254 2618 265
'GR 2624 289 2626 300 2628 320
0.1 0.1 0.045
2 17 37 118 330 330
2630 0 2628 5 2626 15
;GR 2620 30 2618 33 2616 37
GR 2616 118 2618 122 2620 125
2626 160 2628 200 2630 248
0.1 0.1 0.045
n 3 14 315 395 320 320
'GR 2626 0 2624 170 2622 230
2616 322 2616 393 2618 395
2624 405 2626 410 2628 412
PAGE 1
THIS RUN EXECUTED 11APR05 13:32:27
Q WSEL FQ
2617
IBW CHNIM ITRACE
2616 160 2612
2620 271 2622
330
2624 25 2622
2613 38 2613
2622 132 2624
320
2620 2B5 2618
2620 400 2622
2630 475
160
280
28
116
138
315
401
11APR05 13:32:27
SEC NO DEPTH CWSEL CRIWS WSELK EG
Q QLOB QCH QROB ALOB ACH
TIME VLOB VCH VROB XNL XNCH
SLOPE XLOBL XLCH XLOBR ITRIAL IDC
t PROF 1
SECNO 1.000
720 CRITICAL DEPTH ASSUMED
1.000 9.85 2621.85 2621.85 2617.00 2625.58
16000.0 868.7 14815.0 316.3 231.6 922.1
.00 3.75 16.07 4.04 .100 .045
.012319 0. 0. 0. 0 13
•SECNO 2.000
2.000 12.32 2625.32 00 .00 2628.86
16000.0 291.2 15314-4 394.5 72.3 993.8
.01 4.03 15.41 3.72 .100 .045
.008176 330. 330. 2 0
SECNO 3.000
280 CROSS SECTION 3.00 EXTENDED 3.30 FEET
;,3301 HV CHANGED MORE THAN HVINS
HV HL OLOSS L-BANK ELEV
AROB VOL TWA R-BANK ELEV
XNR WTN ELMIN SSTA
ICONT CORAR TOPWID ENDST
3.73 .00 .00 2616,00
78,2 .0 .0 2616.00
.100 .000 2612.00 77.37
0 .00 201.96 279.33
3.54 3.28 .00 2616.00
106.1 9.1 1.3 2616.00
.100 .000 2613.00 18.38
0 .00 134.19 152.57
2 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO - 1.67
3.000 13.29 2629.29 .00 .00 2630.32 1.03 1.47 .00 2618.00
16000.0 5247.3 10421.4 331.3 1874,7 1055.1 137.8 24.7 3.4 2618.00
.02 2.80 9.88 2.40 .100 .045 .100 .000 2616.00 .00
.002924 320. 320. 320. 2 0 0 ,00 452.97 452.97
PAGE 2
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, ;r . ~ 3 DEEP 'r ~.e. s , 3 t ; t , ~t ' t: r , ~ ~ 40 SOUTH MAIN STREET 206 SOUTH GREEN STREET
~ \ . r t ~ 1'~ \ } Suifa200 j MARION, NORTH CAROLINA MORGANTON, NORTH CAROLINA
~ ~626J~+z•9382 26162 [phone] 28656
. ,a DROP INLET 1
' COPYRIGHT ©2003 SUTTEES SURVEYING, P.A. t i
r 1 i Zt~ 11 ~ 1 .
r I / / t ~ 5 BERM TO DIRECT , , \ ' ' 1I / ~ t , I I ~ tt UNOFF TO INLET OF PIPE 1', ~ 1 ' '1 NOTES:
!II II 1 1 1 1 I~ t , r.- Y.~...-~.~:.., J; il,;; I Ill l,. I I ( / ~ } ~ t~, ~ ! '4t 1`. - _ - ~ , , ~ i I I I f; I :>I I I 1 i I 1 I i 1 \ ® , f 1, ; ~ t , ~ AERIAL MAPPING PROVIDED 8Y: SPATIAL DATA CONSULTANTS ~ t SCALE OF PHOTOGRAPHY.• i" = 500'
/ I Ilililllll.: 1 1 i \ ~ f ~ t i I I. I f 1 1 1 ~ f,~ fr.r Iill I ~I 1 1 I I i i 4 t t ,t ~:is 'S ~ t , II! I IIIIIiIfIIb.: I I I 1 ~ ~ ~ t ® , { ~ ~ ~ DATE OF PHOTOGRAPHY: SERTEMBER 43, 2003 (LEAF ON)
~ I I I i I I I ;l I t ~ ~ 4 Ililllll i . t ' `v GROUND CONTROL PROVIDED BY: SUTTEES SURVEYING, P.A.
r ~ \ \ \ 1 , ' DATEOFCONTROL: AUGUST28,2003 1~ ;
er c~( ~1 \ , f 1 L J1 : 1 . , 1, ~ ; !1l x,:'11 / 111 ~ \ \ 1 \ \ \ \ 1 , ® ~ , , 1 ELEVATIONS BASED ON MEAN. SEA LEVEL
\ 1,; 11 i\ 4\\ , 1 11 NAD 83; NAVD 88
111,, 1 \ \ ® ! ~ i tl
\ € \ \ \ \ ® ~ \ ; ~ DROP INLET \ ~ ~ ,
,I III I ~ \ \ \ \ , , I IIiIL~IIII \ ` ~ 1 t ~ i '1
~ IIIIIIIII~,: \ \ ~ ~ Ii r~iIIIIII11IIt;: I \ \ \ \ \ \ ~ t 1 , . , ~ III t - Extat. Conditr~ns legend t 4'
• 11111111 { ~ ~ \ \ \ \ \ ~ 1 I 1;~ \ \ \ \ \ \ \1 \ t 1 \ \ ~ 1 14 I III \ \ \ \ \ \ \ \ AVER COU , ` ® 7ronsmission Tower Fence
' \ \ \ ® Y NTY AIRPORT it . ~ \ 1 Utility_Pole ~ ~o.~,__a- Gaurd Rail
t 1 I I! I I I I i I I I I I I i I i i I*~ l I \ \ \ e \ _ , I I I s, I i \ \ \ \ \ t r ~ 1 , ~ , I I \ ` \ , q ~ light Pofe 'S , ~ 0 Misc. Pole Railroad
, il' ! I ( iii . 1" I `y'~' \ \ ~ \ ~ , ~ Railroad Signal Water
e I u ~ ~ \ r' ~ 1 r ;r,l I I U \ \ \ \ ~1 ~ sign _ Marsh
PIPE #1 I I ~I~~I i ~ r00\. - - _ \ ~ \ ~ ~ . \ \ 0 Drop Inlet ~ r:~~. ~ - Treeline
~ , 24° ALUMINIZED CSP e ! / ~ I t\ q Z.....-~ ,k ~ ~ ` ~ \ \ ~ 1 1. - y \ ~ DROP N V ` • . ) \ , ~ ~ \ \ ~ \ ` ~ ~1, ( Culvert Shrub or Brush
~ I LETS E ERY 100 r / j P ~ \ \ \ \ ` ® Manhole Index Contour EFL Catch Basin (Curb) Intermediate Contour
11 / 1:,. l// ~ \ \ ~ t~ ~ Single •Tree (Small)
li f\ ~ 1 Index Contour (Obscure) i1 ~ Single Tree (Medium)
, .N0 DROP IN ETS 1 f 1I . ~ , \ ` ~ \ ~ \ \ \ i 1 , - ~ ,f 1 / ~n\\\~ \ \ 1111 ~ Intermediate Contour (Obscure}
P ' CED BEYOND.: TI'IJS f ~ : l~ ~ \ ~ ~ ~ \ ~ 1 1 i ' ~ Single Tree (Large) Depressioh Index Contour ~ Morsh Symbol
POINT:. ~ ~ ~ ~ ® \ i I , 1,, ll.~ j11 J1 ( 1111 \ ~ ~ ~ \ \ 1 ,1 - Depression intermediate Cohtour
f r 1, 111 J~,~ 111 r`Ir \ , \ \ ~ ~ ~ 1 ~ , ; ` ~ 11vt1 1 J11 f~ \ \ ~ 1 i ~ , , r 1r~ 1 J \ 1 1 ! 1
\ 1 IJJ J1 \ ~ _ ~ t 1 ! 1 l it / 1 I r\ ` ~ 1 1 1 I ~ ~ ; ! 111,.,,11 .Ir l 1 \ . ~ , ~ 1 1 1 I ~ r
1 1 ~ 1 \ ~ ~ f .~1 1 1 !1 1 ;;.1 111,1 IIJj~111 \ ~ ~ 1 1. 1 1 1 i t , ~ .1 f 111:.:.:.11 ~ I ! ! ^ ~ ~ \ ~ ~ I 1~ ~ I - _ - r 11 J 111 / FI 1111 :?I \ ~ ~ 1 ~ I 1 1 ~ __.PIPE#3 , r~,-'~~..a.;r;., fl 1 11,< 111j:(~ J v v y 1 i I I i I I
_ Y.,l J ~1 J ~ ~ ~ 1 ~ i 1" ~ f 1 L;.r_111 1 1 1 l\ ~ 1~ I 1 1 ^ 1 1 ~`h ~ r 36., AL'[~MINI~ Il_Ca~-~. / i ~ I( 11 1 1/1 , ~ \ \ ~ 1 1 i 1 , t ~ Ti
. ~ _ - 1 ,;,1 ll I .a:: ~ III~r111 l\ \ ~ ~ . ~ } I i i ~ 1 ~ 1 1 { ~ I , tl 1 1 ( i ~ ~ ~ I i c~ 1 Lr~ 1 \ f - I I I III I 1 1 F-~~
- f ;:I I ~ 11 1 I 11 11 i 111 ~ i I i ~ ~ I ~ 1 11 i L 1111 •,I i 111 1 i 1 1 1 ~i~` 1 1 i 1 S i r\ 1~ 1 1 ~C
,1 ~1 1 i, I ~ 1 1 1 1t 11 \ ti S ~ i I 11 111 1 1 1 I I 1 11 I : , s I II . 1 11 I 1 l-Y1 111;:1 141 :,1111111 ~ 1 1 1 1 ~ ,1 . I i t ~ 1 / ~
. I i, i 1 1 1 1. ::I h I i 1 \ 1 1 1 1 1 1 11 . 1 ! 1 111.1~,:'.k I I i11~: ~ 1 1 i 1 1 1 i ~ ~ r 11 t. 11 1 1 J~,1 111 t~ ,,.+I~ 1 1 1, ,1 II ,t'iI 111111 ~ I 1 1 ~ r END ROCK BUTTRESS ,I } , ~ } 1 I ~ : A 1 I III I r ® \ ~ ~ I I I I I I 1 1 I \ ~ , ~I
JI i Iii::! 111iIII:~111 i .11i 1111; ® 1 11 i i I1 1 1 } . 1: • a, l _II I I I 11 ,.III 11 i lra III ::1111111 1 1 1 1 1 1 ~ I. ~d 11 I i ~.1 1 it 1 1111 I ~,i 1 ~ 1 1. ~''`1 1 1 1 1 1 1 1 1 1 i
I, I i 1 111 III>;; 1 11 11:~ 111 I 1.. ?i I 1111, I 1 i 1 1 I 11 , 1~ 1'1. I .I`~11 1 I 11 x,..,111 it 111 111 1:111111111 I i. 1 11 1 11 1# , ' sT~LL~xc Bnstx ~z Z ~ 1, 1 I f<, : .I 1 i I 1 1 1 1 i I 1 1 1 1 1 1 1 1, 1 I I I i ~
.1 I r 1~ I l 1 1 1 1 , 8'L X 6'W X 2'D IR. ~ 1`f,.l 1 IL I i,:;: 1 1 i1 i ~,.1 111 1;>, i II II i 1 1 I 1 1 1 I II,. 11 1 1..1 I i I 1 I r:,, l 1. i i I 1~ 11 111111 I i l1 i I i i 11 I I 1 , .I , ,I ~ L 1 11 1 i I l I 1 i I 1 l 1 1 1 1 1 1 1 1 ` ~
i\ ,111. l i I I l I 1 1 11 11..;1 1 I 1,11 1 1111: 1 I 1 1 1 I I I I DITCH z 1 i, I : i I I i I ,111 11 111,1 I it ~IIII Ill I I 1 11 } 1 i 1 , \ # 1 1 1 1 i I .1 1 II I ~~I I I I I i 1 1 I 1 1 1 I 1 i 1 , 1 ~ I 111 i 1.11;,11 i I I I Iiil . 1 1 1 1 1 1 1 I i 1 i 4, BERMUD GFt S NED DITCH ~rJ ~ j If
.i 11 I ,111 I ,...,111 I 111 i 1;:1 I I I l i 11 1 i 1 1 1 I 11 I} 1 1, 11 i b. ,I 1 t:., III ; iII } 1,1 I I I I 1 1 1 1 I i 11 1 1 I 1 st,o ]]ill' ~r
I 1~4 i i I I I I II:1 II I 1' I i i 111 1 1 1 1 1 1 I 11 1 1 i / , PE 'TRAPEZOIDAL i 1,1 11,E 11 1 i I :,111 I I I I. I i .;;1 i I I 11111111 1 1 1 1 1 } I I I i 1 I , z , 11, 1 1 I , 1:1 i i II 1. I 1 1 1 11 1 1 i 1 1 I , 7.o w x a.5 D ,i ~ i'-1 I I 1 I , E f I; It
1 1,, i 1, 1111 1 1. 1 1 ~ ~ 1 11 1 I I11 I I I 1 I 1 1 i I 11 1 1 1 1~ 1 ~ ~ ~ Ii , 11 1..1,1 1: 1 I I i I t i ~ 1 I Ii 11111 .il I I 1 1 1 1 1 1 1 1 I I 1 1 r I 1 11 I. I I L 1 1 i 1 , Y_ I p 1.I - i II i tl:_~: 11 11:.:11 i 1>; i i 11141; 1 I 1 1 I I 1 i I i I ~ r,,.r , ~
1 i I i tl : 1 I1 11..111 1 111 i ,:}1 i II I it I I 1 1 1 1 I 11 1 I 11 111 I I I- 11 1111;., ..1111111 I I 1iI i i I ~1 ,1 f , ~ I L1 II t 1 1 1 1 I 1,1 l 11 I I : 1 iI I~<,: it I I:; I I i i I~ ~ 1 i 1 1 1 1 1 11` \ ,r t
I, I'il 111 I i: ?11 iII i :..ll I I i I I i 1 1 1 1,~ 1 ~ \ k _ Ii i 1 , 1: i 111 1 ,,ilti 111 I 1 1 ~1 1 , , ; i .1 1 I ,1, . 1 <a .111 I I I 1 1 1 'I \ I I I I ~ ,
1 'l l I.~ 111 ,t 1} I I 1 i 1 1 1 111:,;111 I L,r 1111 1111;' ' I v 1 1 1 1 1 1 k 1~ ~ LI 1 111, 1 t , I i I 11 ;.1 1 1111 i .,1 11 1.11,1 Iii i i i 11 , , \ I 1; 1 ~ ~ 1 1:1 111 I i 1 1 1 } 1 1 i 1 ~I 1 , L. I I \L i 11 i i l iI Is,ti ll I I 1 1 1 1 i ~ ~ ~ ~ I 7!
11 U 1111 ~ . 1 11 i l 111 111 1 II•• 1,1,'111 1 1 i I t i ; , ~ ~ 111. ,1 i i 11, i i ~1 1 I 1 t I t 1 i 1 1 I I~ ~ 1_ I .11.1 1: LII ~ ~ l I I I I' 1 1 1 i ~ i 1 ~ \ I I ~ I 1. 1 I I 1 i l 1 ~
I~ I ,.11~ 1 1 11 ,.Ii 111,f,i iII ~I 11 t~ I ten,, t 11.1.1 1 _I 1 1 1., ~ 1 ` I , 14 , 1 i 1 i 1 1 \ tl ~1 f i~ j ,r
1 I l 1?1 , - 11.1.,:1 III .I 11 1 i I I 1 1 ~ I l I 1 1 I a I.1 I Ii I .a I 11 11 1 I 11 I 1 11 1 , t < 41 ±1 1 11 1,, `I it ltll 1 1 1; I IIII 4 1111 t I 1 1 1 I I l t 1 ; I
: I i. I 1 1 t t ~ I ` i 1 1 L ~ ,11 I h i ',1 \ t I t'1 I I I I :,.I III;:. ; I II I 11 1 1 i II i l ,1 ; , ; . ,,111: 1 1 l .'iii Ii :;I III I I I ill l l: i l { 1 1 i a .1.~ ~"'a` 1 4 1 ~ ~ € ~ : \ I
11 11 1 1.11 4. 1 1 1 I I 1 1 ,1 iI 1 h ^I.,l. \ i 1 1 4 i I l 1 11, > .~.1 i II I 11 I i1;; 1 11 _r 1 I t 1 ~it 1 1 1 I L I•; , I ~ 1.;~., 111 ~ 111 I .,III l iI iI1,111 111 1 i LI- ~It~ I 1 i t , t I ~ ; I L 11111 I I I 11.. 11+: Ii I: ~I 111 1 1 I ti t 1 ~ J ~ I l I j~ -
1 1 1 1, 1 I~ I I I>,11 t~ 11 1,.:~ .1 111;, I -Ii11~1 i 1 i i 1 go1H~ ~ 1 1 1 1~~ 1 ; ~ I , II I I I 1 i II 1 1;. i 1 hl 1~ ~1 I .~I~, III~~<~111 11 11 i 1 I i i I W t L i i i 1.111 , I I I I ik 1 IL..,, 1 I 11 } I 1 I I I , ~ , F f ' ~ 11' f ' li
I i 1 ~ ,1 I I I Ii. I 1 1 I I I i 1 1 i~;, i I ~ 1 ~ 11 1 I l I, I, I I I1 1 11.; i iI . 111 I III 11111111 11.1 ~ 11 1} t 1 1 I I ~ I I I( L I , I I I I I ro 1 I I I 1 1 C ~ ~ ` I, 111 I ;I I l ~ f. 1 I 1 1 ~ l . !
I I 111, I I I.,l ii i ;11 I 11, iI 1.'1111111. Ii1 iI ~ \ 1i1 Y,I I 1 1 1 1 1 1 1 1 II 1 1 ,,NI 111 ,i I 1 I I I I l <7 I i I ~ 1 I' I i i 1 ~ 1j ,i I 1 L i 111. I 1 1 1 1 i I 11 ,k` i t I l i ~ ~ I, + ~ i t -
I ~ I i 1;71 I i 3 i I I 1 I III 111 I _ ,1 1 ? ..Ir` ' ~ t ~ i I I I 1 I h I i I I~.:. I I I 1111, 1 ..1 i 1 1 , i I I i I 1 I 1 "1 I I 1, i ! I 11~ , I 1~. IL Ii I 1 II c a,. 11 11 1i1. I 1 I I 's FFF ~ I >
1 I 1 1 i ~ 1..1 I I I ~1 I I I I I r } 1 1 / 1!, I1Ii LI: ~ 4 fII~~, 1 li1,IiiI 111 11 111 11`"fi``' ~ ! I >I ! I i 1 ' 1 I 11 M a ~`~``I' I , . i I t~~ i
' I' 11111 .f i t:.,. 1 i I 1 I I 11 1 1 1 1 11 ~ ~ 1, ~ ~ i I I 1 11 L, i l i a jl ! 1 1 1 1 t; 1111 111 ~ i 1 11 1~ , i ,i 11 I ! , . , 11 I i I 1 I ~ I 11111.11 I I ~ ti1~1'` , , ~ 1 I I I 1 a ~,~I I.~ III 111 11 1 I ~ , i ' ;
1' 'I I IJI/ i 1 1 ..,111 I I I 11 i I I 1 1 1 1 i 4, 1111.1 II ..1 i 1~ 1! 11i I I i 11 1 1 l I I 1 1 1 1111. 1111, I I 11 1 t 1 ,
I i 1 1 !ll 1 I I I 1 I I Ii :~;•)Ii 1 1111111 1 1 1 1 1 1 1 1 1 , ti j X I I Ii 111.,; i t 111:: 1111 11 1 1 i 1 1 1 t 1~ I , I~ ii .f, 1111 1 , I 11 1 IIII! 1 1 1 i , 1 1 i I I I (,;1 i 1 I 1 11~~1 I fj11111111 i I t 1 1 1 1 , l !i IiII,,~ I111~.PI 1t..:1111I;.:.11 I i1 1I 11 I '~t~ ' F ~ Prop. Conditions Lsgand I ~
1114:11 1 1 r: , I it i ~i i i 1,: i I f 1 1 II ~ 1 1 i 1 1 1 1 1 I , 1 1 lii I r 1 11 111:, 1111;~?I i 11111111111 11 i 111 1 1, I i I l f! i 1 I l l i .7 i I 1 i~~ 1 I I I 1 1 1 1 ,
!I 1 1 1,! 1 1 III 1 11 1 1 I i E,. I l i i i I 1 1,1 1 I I i 1 I I I 1, 1. ~1 /I~ 1, _ : I ! 1 ~ ~ 11111;11 illj1f11 1 - I 1 1 1 1 1 1 i i ~ , , , l 1 11 I I 111, 1 ~ 1{ 1 ` 1 ' 1.11 , , I i I I << 1 ~ 10' BENCH I 1 i , ~ I i 1.. 1 1 l I 1 1 ~ f ~ 1 t ~ t ~ 1, ~',~Yti ~ s X x Si It Fence
111.111....111 , 1 1 11 : I1 1i,I I I I 111 , 1 11d.. I i I ~ ,t I, 1, 1 1 •a i Ii .l i 1 1 I I i 1 I 1/ , 1 E: 111:.) 1111, 1 -~I~,~1 1 1 1 ~ , I .l J11 k;y I l 1 1 I J Il I ,11111 1 I 11 1 I 1 I .>r L I 11 , r 1 1 11 i ( 11.::11111 11 1 1 III i I l I 1 ~ ~ ,w-~~,,,` f
111 111 11 : , ~ 11 1 I 1 i, 11111., 1 1 1 i 1 11 I I i~ I 1 ,1; 1 1 1 fa 11 1 1 1 ?.,~I I 111f Iif l 1 1 1 1 1 11 I I 1 ~ , 4 ~ 11 111. t: 111 J III:. 1 1 1 t,11 I I I 11 I 1 1 I 11 1 I 1 1 , I I I , ~ ~„s
11 J 1 1 J11 i 11 Jl 1 1 1,. 1! 11 111 I I 1 11 1 1 I I 1 1 ~ { 1 1~ 1 1 1 1 J,l 11 i,eti( r, , X1111.: 1111 ! .i~~. ! 1 1 1 1 1 1 11 11 1 ~ 1 1, 111.,, l1 1 1l~. ll 11 ,11 er~tlfl .1 11 1 I 1 Ia ~ \ 1 l ~,,ir 11 i,1,11 1 ~ , ` ~ Denotes areas where slopes are to be reworked
i I I 6 i1 I 1. 1 I i,< r ,1 L,lr ~ „r I i e I t I I i I I. l : .1,r ~,f~,. it, ;,~~`1 ,i ~ 111 ,,tili' E t ~ ~ s 1,1 ~ \ I I I I,. i i t . , ,.f ( t r ~<r r 1 , { o r t iii 1 1 _ 3 ~ I ~ , , ~ , , , \ I I i ~ III 1 , . ~1 1 11 11~ 1 1 I 1 I ~ ~ 1 , ; ; , ~ ;
I l i ( I I I-, l1 11 1 i ~ 1 1 1 I~1 I~ ? ~ i- i i 1, t l ~ ,r I 1 1, .r III 1 1 1..1 i 1 1 i 1 I 1~ ; 1 i II I I I i I I 1. 1 1 l 1 r,. ~ 1 1 i 1 ~ 1 ti r ~fi t t ~ ti.~
J J i L. ......III 1( ~ c 1 i 1 1 i i 'i I \ - w L I Ii L,?11I I I( 11 r c I tt.. Ii 1 i 11 I\i 1 w~ ! 1 I i,. I I I i L., i I~<. I I i~ \I 1 1 1 I t 1 I I ~ 1{ ~ ~ ; ~ Prop. major. contours
w.~4 I I i, I I . s I! i l l \ .I 1 I 1 1 i 1 I I i i 1, t ~l . I I I I I ii 1 1 11;.1 \ ,,1 \ eo- I i i 11 I i i 1 I
: 11 I 1 I , , ~ I I 1 1:., 11\1 \ :~\11 \ • \ \ ~ \ _ _ _ i 1 1 1 1 I 1 i I ~ . I II III t \ 1 I 1 , 1 I : , , 1 1 11 1 1 \ 1~' ~ \ - - _ - a.- i i 1 1 I L 1 i / , . . I. i 1 \ 1 \ ~ 1 \ :t \ I 1 1 1 , , E 'i~ ~ ~ ~ ~ ~ ' Prop. minor contours
11 , \t 1 1 i ~ f' ~ ~ }
. . ~ I ~ I I 1 I , ~ t \ 1 \ ~1 1\ _ - r , .r;, ~ / / i 1 1 I 1 I 1 i ( , , 1 \ \ . \ \ \ \ ~ 1 f : i ~ 11 1 111 ~ \1\~:>~\I 1 1 \~~.1111\ \ \ \ \ - : - ~i~~. , ~ / / 1 1 `.1 I i , ~ ~ t I,1 1 11 , , ; \ \ 1 ,i \ \ ` ~ _ ,,,,.,x.,.w,,.,,~5 _ . _ / ! 11.E 1 I 1 I . , k 1~ ,
1 1, tI11.:1 \ t~ \1 \ ~ 11 1 ~:~,1\\\\\ :g~. ~ ',;.-r,;~,~ ~ _ - - / 1 1 1 ~ i I~ 1 ~ , i E - , \ ; _ 11 t \ \ , \I \ ~ ~=.t \ 1 \ ti:f \ -'r - .E76~ ~ / ~~`I ...1. 1 I 1 IJ,I ;1i~ ~ Pa Prop. piezometer number and location.
~ ~ f~ ~ ,
. ~ 1 \ \i \ \ \ ~ \ i\ \ ~~v \ ~ \ . ~r~r,.~fi:, ~•r _ , , i , ft ~ I rr l~ ; £ y ~ i ~
i i ~ ~ ~ Denotes rock buttress area f ~
~ e
15 ~l~' PE SLOPE DRAINS 1 \ \ ~ \ y~t,\ \ \ = : r = , ~ ` ~ - _ / ,J STILLING BA IN #3 , , A~ , ANUFACTURED BY ~ \ ~ \ \ ~ ' ~ : - - voo-~ A , ~ - _ , ,
1 LANE INDUSTRIES" \ \ 1 k~\®\ \~'a",~' = ~'~-.~y R*'r~~ ...,w: _ - _ - =r ~ - _ - -I1y~-~- _ - - r' ,1 ~
CbR~UGATED OUTSIDE, 1 \ : \ ~ ~ - _ ; ! ff~,~ Ff < < f /Jf ~ 9
SI~00';; INSIDE, PLACED \I . \ \ \ ® \ t_ > -a-.~ % - - - ;i ~ s ~f l J EVERY 140' 1 \ \ , ~ \ \ ~ _ - - ^T f i , E , //i ! f 1 r ~ J f r ' ( t ~ ` f f' ~ J
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_ _ _ a \t \ \ \ ~ ` \ ~4i\ \ \ ' 4t;.. \ \ r, r; „r .^'~,L. ..x %i s~+'wt~'~Tj'! ~ i - - / / ' i i
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_ , . AREA WHERE EXIST SLOPE ~ \ \ \ ; • - \ ,r_~•-- - _ .
_ IS TO BE RECONSTRUCTED T4 ~ ~ + " ' ® ~ e ~ ~ l • _-=~,._T;_.~ - F t
_ - MATCH 3:1 \ ~ \ ~ . ,..„,~,~,.w. - {
\ \ \ tit \ ~ a\ ~ : ..r , ~ III ~ _ ~ E ;o~°°aFESSIQ°~,., UNII~IN TAI
~ ~ AREA WH OP1; ENO ROCK BUTTRESS :~o°~~ ~9°~~; ZINGS L~ISP~~AL oQ <;
PIPE #5 ~ ~ ` ~ IS TO BE RECONSTRUCTED TO 36' HDPE ~ ~ \v~~ ~ ~ ~ ;,,;,;.»"z-_ -r,:._' = ~ MATCH 3:1 PIPE #4 a SEAL - ° - ° 818 a
~ \ , r; ~ ~ x ~:r ter' . - - 1~ SLOPE W/ DROP ~ \ ~ 24" ALUMINIZED CSP
ti ~e~\ ~ ; ~ _ ~ _ , DYKE FOR EXIST. EROSIO INLETS PLACED AT JUNCTIONS WITH SLOPE. DRAINS \ ~ ~ ~ \ ` . ' 1:.- _ = , ~ 12~ SLOPE ; --r.._... , ~ ~ ~ v - ~ - - _ ;1 CONTROL POND TO BE REMOVE , (p~ a n ( ° ~ GRADING PLAN W/ ROCK BUTTRESS
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y'`" / , \ JCB 1 =100
, ~ ~-~.~,ti~ ~ TOP BANK DRAWN BY PROJ. DATE ~i y4„~,;. Moc 03-03-04 PINNACLE ENGINEERS,
~ ~,,;~r^''v:..~ 1 ADD PIPE rv~ , ADD PIPE DITCH LABELS, ADD DROP INLETS 4 14 05 gppROVEO BY PROD. N0. .~xt~,;. P C
REVISIONS DATE JCB t,>~,.<..r~ 4 nseti one s.ow~w. Road 9wto row e.e.nu. Home cvolloe ceeo~ BR!/E6!-I7D1
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I _
_ ~ T - .
-
-ALL AREAS WHERE ROCK BUTTRESSES - - _ - _ L .u __e ~ ~TT-- ~
270 'ARE TO BE CONSTRUCTED SHALL BE L - - CONTINUE UP TO 2780 L
PROOF ROLLED .PRIOR TO ROCK PLACEMENT. - - ~ 10 EROSION CONTROL BENCH _ 1.09' FAL _ : - _ - -t _r. _ _
FILL SLOPES TO BE STABLIZED BY DOZER i = ~ ~ :i _ _ i _r , ,
PUSHING OUTER 1.5'" OF SLOPE ON TOP OF FILL 1 BENCH EVERY 25' VERTICAL --t - -1-~- ~ E--~-r- - - ~ ~ -
1' THICK LAYER TOP SOIL SHALL BE PLACED - - --Fr r ~ - _ _ , _ _
_ ~ T.~ _ _ ,,.r_ - .
F 2700 ON SLOPE, TRACKED IN BY DOZER AND SEEDED. ~ - THIS PROCESS SHALL TAKE PLACE EVERY' 12.5' _ _ _ -
- (VERTICAL) OF FILL. AND/OR BY OCTOBER OF -
1. q FALL'- - 'EACH YEAR TO ESTABLISH WINTER COVER. _ _ _
T. - COMPACTED ZON~E~
y ~ _ 265D ~ ~ _ : _ - CUT TO FIRM GROUND BACK TO PDINT a _
~ 2680 - _ DEPTHFGF CUT Ttl 9~ OETERNINED INEFIEID~ RfggT OF Sl~p~ TQ BEE E%CAVATE By p~qG ~ " -
300'f - - NATER[Al FRGN TOP 70 HOTTIBI ~ SLOE AND 1-t
+~t _ - ~ COMPACTED T6 95% 0-` ~ . _ - - - 2640 ~~~`~"~L ~ - - - - PLACED LHtIL ~ r - - 4+t
- ~ ~ - S' SETBACK FROM ~
r _ STAN - - = _ _ 2630 TGP qF BA t _ ~ t; FLL~t~ ~ ~ 4..: f
2C 6O _ - - DARD PR _ ~ - 104-YA t SILT-FENCE ~I[f £%I$TIACjSLOPE _..4 _ _ , _
- _ _ _ e - [BITER ROCKFiIL FACE. - 2620 f -
_ _ _ F _ - - t i - I _ L t r I ~ _ '
~1 _ . 'yEXIST. F _ - _ ~ ~ -i . _ _ - - - - _ _ _ _ RIYfR ~ ~ i { , i ; 59 SEIHACK ~ ` i. - - - _ _ _ _ _ ~ iJ1; I (BASE ff ROCK HUTTRESS)i ~I INSIDE ROCK SLOPE ON LAYER
LL._ - - - - . . __r_ _ _ 2610 ~ ~-I - OF C-120 fILTER.,FA)?RIC,
z640 T - ~F - - - - F . _c _
- 0 10 20 30 40 50 60 70 80 90
_ _ . _..~~~-I-~- ~ - -
' _ ~ CONTECH C-120 FILTER FA R C r ~ ~ - st~r FENCE - ~ ~ err - ~ -r HEIGHT OF DUMPE a - _ TO BE PLACED BETWEEN ROCK FIL~{ANDLSOIL _ - ~~~~1,-_- - THIS AREA NOT TO
DUMPED FILL IN ~r
2Sc~O ~ ~ _ W tL - - 4__- OF COMPACTED FIL NOT TO EXCEED HELGHTf ~ ; ;
CTED FILL .
T RIVER r + _ - - - -
r r 55 r-~ AND BACKFILLED W/ ROCK - ; L,_
~'~tt ~ T -
- - ~
- _ ~ ~ -
0 40 80 120 160 200 240 280 320 360 400 440 480 520 560 600 640 680 720 760
- .
760. 800 840 880
VERT. 1"=20' CROSS SECTION NEAREST RIVER
HORIZ 1"=40'
-
- - _ . _ L ~L _
_ - - --15 HDPE SLOPE DRAIN - ' - _ _ -
_ , ~ 'r'te°`_ °°-J-- _....1_.:_i. t ..r.. _ _
2780 - - - - - ,--_-r . - .._rr _ I : l
- - _ - - i .
= _ - _ _ - - i _ _ - - - _ 2.780.. _ _ - - I ~ _ _ _
L~ _
L - ~ ~ . _ -
_ - - 2760 - - ~ - _ _ , , _ - _ I ~ I r - - -
- - - 1 u y - _ _ - _ . _ = _
rt-: _ ~ L
_ - _ _ +
I _ _
2740 _ - _ - - - - - - - - 'r~ rte... LLL _ . - j/- ~ :
_ _ - F _ - N W INLET ADDED EVERY
r ~-rr r _ ~ - ~ ~ , i 4 i -
r~ T~ - 12.E EVERTICAL HEIGHT OF FILL - ~ _ ~ _ t rE _ l _ y '
k ,
-10 EROSION CONTROL BENCH= - .-r-
27~0 ~ - -
1 BENCH EVERY 25 VERTICAL ~i- r NO ~F } _ ~ ~ - : NOTE: INLETS NOT DRAWN TO SCA ~ -r--
LE _ - - ~ -
_r~ INCLUDED FOR CLARITY OF LOCATION I - -1-1 ~ •
- - _T _i-i_~ ~
~ L r. _ _ ~ ;-{-y-~-~ P U R P 0 ~ S.. ONLY i : - ~ .
- _ 1.09 FALL _ ~ r ~ . - I
.~.~II}". - - - ~ - _ -
L. - - r r - - _ _ _ ~ i _ - .a i
COMPACTED ZONE - `fi`r
2680 - - fi F ~ ~ r _ 300' - _ ~ _ _ _ _ - - _--I - ~
- -
_T - 36" HDPE PIPE _ - _ - _ . _
- «COMPACTED TO 95% OF - "-DROP INLET WITH SILT SAVER - _ - _
' ~ ' STANDARD PROCTOR - ' - - - ~ - - -
- = r- 2660 _ _ - _ ~r-~ - ,
.
- -
r ~ ~ EXIST. GROUND F -
r~ 40, _ 2' BENCHES CUT INTO EX S I _ T. SOIL ; ' ' ' ' I - _ = - q 1~ _ ~ ~
2640 ~ 1~ CONTECH C-120 FILTER FABRIC L HEIGHT OF DUMPED FILL IN , - - _ _ _
_ . ~ u~ . ~ -
TO 8E PLACED BETWEEN ROCK FILL AND SOILS ~ ~ - ~ THIS AREA NOT TO EXCEED HEIGHT
HEIGHT w~F~~~s~ ~ ~~~P~~a~~
~-~T - OF COMPACTED FILL 880 980 960 1000
NOTE ~t ' ~ ALL AREAS WHERE ROCK BUTTRESSES _ _ _
2620 ~ ~ _ -=°ROCK BUTTRESS _ - . _ _ _ ~ 55'-~ T ARE TO BE CONSTRUCTED SHALL BE
L T TOE OF EXIST. SLOPE PROOF ROLLED PRIOR TO ROCK PLACEMENT.:_ _ - I+, f- _ _ _ \`,~TI1tJuuhrrrr
_ : ~ - ; ;
- r -
- - - - - - , :Q 'I/9<°9 = TAILINGS OSAL PLAN ° - SEAL 8
0 40 80 120. 160 200 240 280 .320 360 400 440 480 520 560 600 640 680 7z0 760 VERT. 1 "=20' ° 8182 0 _
[ e CROSS SECTION
760 800 840 ~~-;c
e R~,~ VVl ROCK BUTTRESS
HORIZ. 1"=40' TYPICAL CROSS SECTION ~~~'''!U I LA PHASE 2
PAOJ. iJCR. SCALE
JCB AS SNOWN DRAWN BY PROJ, DATE
' ~ EDI7 S REV. NO. EDIT SECTION NEAREST RIVER -19-0 APPROVED BY PROJ, No, Moc 03-03-04 PINNACLE ENGINEERS, P.C.
REVISIONS ¢ DATE JCB 4
REVISIONS EiBhry(Yi°W~revanlloRowlSuiluFcurAehc~~illo\ortBCemline2RRU4 N2R~b3R•I'U:I -T
MIN
7117~~

I ,
I - ; ~ _ " _
t . , ,
~ ' .
_ GALVANIZED STEEL WIRE MESH FENCJNG SYNTHETIC FlLTER FABRIC _ - . WITH MAX. OPENING CF 8°. MIN. HEIGHT ATTACHED TO FENCE WITH
ABOVE GROUND OF 2'-0° APPROVED. FASTENERS. PLACE
SS-t00A'SLT-SAVER Y 7ALL MINIMUM ' ON UPHILL SIDE OF FENCE. FRAME-AND FlLTER ASSEMBLY EARTH BERM _ . 38" ALUMINIZED CSP 24": ALUMINIZED CSP
SS-5DD SILT SAVER. EXTEND DRAIN AS REQUIRED TO ~ . » caNgoE utiH HEICHi DF 2 STEEL ANGLE OR 2x2 MIN.
' WOODEN POST SET MAJ. 18° ' 8D1TDM'DRAIN ATTACHMENT ""---t ~ '""FlNISHEO ENBANXMFNT ` ROCK LINED CLASS B RIP RAP ROCK LINED CLASS B RIP RAP
DUTER stDPE of ENeANXMENT INTO GROUND POST , FOLLOW MANUFACTURERS RECOMMENDATIONS FOR iNSTALLA710N 3' TALL"MIN. ' ' CONTECH C-1?0
FlLTER EARTH BERM FABRIC . 10' MAX W1RE MESH FILTER ' FABRIC ~ ~ ti .
2.d 3.0' : „
12" HDPE • . i. 18° HDPE SLOPE DRAIN - . CONVERT TO 15° i? i M ~ . ~ 24 ALUM. CSP CONTINUES
• GROUND HDPE 3B° HDPE CCiIECnON PIPE _ ~
`I'' PROFILE PROFILE CoNTECH C-120
Ltd RElAOVE WHEN lRiXi LAYFA ADDED EXCAVATE 8°x8° N.T,S. - N.T.S. FILTER FABRIC
TRENCH t11~.OPE ~z~' (vEanca~} eE-rAEEN un:Rs
ALONG LINE OF POSTS. EXTEND
FlLTER FABRIC AND _ FlITER FABRIC _ - INTO TRENCH, ' - FOLLOW MANUFACTURERS RECOMMENDATIONS FOR SILT-SAVER iNSTALLAiION WIRE MESH St{ALL BE 1-
BACKFlLLED A MIN. OF 8° BACKFILI. TRENCH I SEE PLAN SHEET FOR SLOPE DRAINS THAT GRAIN INTO 36° COLLECTION PIPE AND COMPACT SQiI
`AND VitiICH GRAIN INTO CLEAN WATER P~1D. ; _ _ 2:1
! I STANDARD SILT FENCE .SLOPE DRAIN TYPICAL:. . FLOW -8.0'-? F~ 6.0 2:1
2.1 8,0' -
N . T. S. NOTES: t. FlLTER'BARRIERS SHALL BE INSPECTED
' e IMMEDIATELY AFTER EACH RAINFALL AND GAILY DURING PROLONGED RAINFALL _ 2:1 _ 2:1
REPAIR SHALL BE MADE AS NECESSARY. ~ , PLAN r
I 2 FABRIC SHALL HE REPUCED PROMPTLY PLAN
IF FOUND TO BE IN DISREPAIR. STILLING BASIN ~ 3
a SEDIMENT DEPOTS SHALL BE REMOVED . AFTER EACH StORM EVENT AND WHEN y.~ - - STILLING BASIN # 2
DEPOSITS REACH APPROIDMATELY i/3 N.T.S. N.T,S.
HEIGHT Of HARRIER.
~ VENTED PYC CAP °
I-_J

?Q
16" HDPE 9fAPE DRADi EARTH HACRP'IIJ,
1 A3 ItANU!'ACURED HY LANb ENTERPRI3S5 MINIMUM 1.6 DdCR BA FOOT SEAL OF
3006 PeI CONCRETE SCHEDULE 40 PVC HENTONTTE PELLETS
1,5 I , SAND BACIQ+ILL (NC ~2 9j
DITCH LINED WITH BERMUDAGRASS
3000 P3I CONCRETE °t . TBAEADED COUPLINGS ;ti, " ' SHOULD BE USED. «r 35'
. . I , , AYOID U9S OS SOLVENTS. ~ :
. l8 IIAIiUPACURED BY LAMB ENTERPRIBE9 .NOTE: SEE.PLAN SHEI;I'-FOR SPECIFIC
DIMENSIONS _ 4'_j,+ _
r ..•f• . • ~ '
GRASS DIED DITCH ~ , 'tt1s~ti ;w!'
. • ea . u Y~ ,•w Y< ~
. - L i f.. •
- „E , . . t..• . 1PElZ 9CRErvH 'v . . ~ , (SL01'TED wCHEDULE ' • }
~.~t y e,;,~ ' "s 40 PVC)
yet . ~ .~r END PVC CAP

EXISITNG GROUND- PIEZOfdETEn DETAIL
N.T.g
~ 5' 1. '
'y t0 X11' 38" tIDPE
,1.5 AH Iuxua'acIIRED sY
24" LAN& &NTERPRISES ALUM.- CSP CONTI UES .
T PLAN (N S}
PROFILE SILT-SAYER 39-100A FRAIIB AND FB,TER ASSEMBLY
DROP INLET W SLOPE DRAIN TYPICAL ~ { } N.T.S.
WITH RAT FRAME REMOV EXl3TB~1(i GROUND LEVEL, :VEL
G E "AND ED
BERM TYPICAL SB,T-SAYER SS-200! SQUARE BA9B

9IGT-SAVER HH-100A FRAME AND FA,TER A88S6IDLY
yr' ~:v ~ :II;JF7J "L~;~'L
G 3Q,1'-9AVSR 33-200A 3 UARE RASE 3000 PSI CONCRETE PSI CONC'R^ET~E /
~ 24" ALUMINIZED CSP f/
ROCK LINED CLASS B RIP RAP a . PIPE PIPE PIAK

3.0 24" _ ALUM. CSP CONTINUES
I-~B.O-?I 3000 P3I CONCRETE PROFILE
PROFILE ` DROP INLET W/D SLOPE DRAIN (TYPICAL)
N.T.S. , NOTE: ADO EXTRA SEC110NS TO INLET AS REQUIRED lO ENSURE
38° PIPE q 38" PIPE F[AW e INLET HEIGHT CORRESPON6 TO FlLL HEIGHT

1 FILL HOLES AROUND PIPE NTTH 3000 PSi CONCRETE
2: ' 1 16° SLOPE DRAIN 5EE PLAN SHEET FOR PIPE 511ES

PROFILE NTS ( FLOW 1-..-•.-I
i,.. B.0 6.0 DROP INLET W SLOPE DRAIN TYPICAL ~ (
I
I - NOTE: ADD' EXTRA SECTIONS TO INLET AS REQUIRED TO ENSURE _I I
! 2:1 INLET HEIGHT CORRESPOND TO FILL HEIGHT i I
I _ , ,
_ _ _ FILL BOLES AROUND PIPE WITH 3000 PSI CONCRETE
PLAN HDPE PIPE SUCH AS THAT MANUFACTURED BY LANE ENTERPRISES
~ _ STILLING BASIN 1 _I #
,,,~~I~~~®ES~R•°.~;~-,, UNIMIN TAILINGS DISPOSAL ~Oa~pF oy9®9
N.T.S. SEE PLAN SHEET FOR PIPE SIZES ~ < e
_ _ d SEAL g
8182 8
: ~ ~4-as DETAILS
,,,;~le ~Pg~l~,, PHASE 2
lltlnnlllllll

PROd MCR. SCALP ,JCB AS-SHOWN n
DRANK BY PROJ. DATE `t
CRANE MdC 03-03-04 CHAN E LOPE DRAIN AND R P INL T DETAILS 4 APPROI~ED BY PROa N0, PINNACLE ENGINEERS, P.C.
REVISIONS DATE JCB aye, ow.~ut. aat e~,+4 ~ ~,n. ramie c.~m. eeea eae~ese-,yoe 4
}I rctvi~iuw~ ~ I I 1
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