20110531 Ver 1_401 Application_20110511

20110531
_ _--_ _ __
RECEIV~~,
OFWATF9 N.C. Deot. op c>~..
O~ G
Y MAY 2 5 2011
Winston-Saie-
Reclona! Ch .
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. A licant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps:
®Section 404 Permit ^ Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: NWP-3 or General Permit (GP) number: DWQ IWGP
1 c. Has the NWP or GP number been verified by the Corps? ®Yes: John Thomas ^ No
1 d. 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
1 e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
^ Yes ®No For the record only for Corps Permit:

^Yes ®No
1f. 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
1 g. 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: Shattalon Dam Repair
2b. County: Forsyth
2c. Nearest municipality /town: Winston-Salem
2d. Subdivision name: Shattalon Lake Estates l~
2e. NCDOT only, T.LP. or state
project no: NA ~N ~ ,
ode 8
3. Owner Information
3a. Name(s) on Recorded Deeds: Shattalon Lake Inc. (HOA)
3b. Deed Book and Page No. HOA: DB.2936, p.l; Patella: DB.2687, p.1149
3c. Responsible Party (for LLC if
applicable): Clarence Dixon, Shattalon Lake Inc. President
3d. Street address: 4037 Rookwood Lane
3e. City, state, zip: Error! Not a valid bookmark self-reference.
3f. Telephone no.: Error! Not a valid bookmark self-reference.
3g. Fax no.: N/A
3h. Email address: dixon4037(c~windstream.net
Page 1 of 1 t
PCN Form -Version 1.3 December 10, 2008 Version

. t
4. Applicant Information (if different from owner)
4a. Applicant is: ^ Agent ®Other, specify: Winston-Salem Streets DivisionError! Not a valid
bookmark self-reference.
4b. Name: Robby Stone, P.E.
4c. Business name
(if applicable):
Winston-Salem Streets Division
4d. Street address: 100 E. First Street, Suite 307
Bryce A. Stuart Municipal Building
4e. City, state, zip: Winston-Salem, NC 27101
4f. Telephone no.: 336-734-1550
4g. Fax no.: 336-748-3173
4h. Email address:
[e-mail]
5. Agent/Consultant Information (if applicable)
5a. Name: Gerald Pottern (Environmental Consultant)
5b. Business name: Robert J Goldstein & Associates, Inc.
5c. Street address: 1221 Corporation Pkwy, suite 100
5d. City, state, zip: Error! Not a valid bookmark self-reference. QL ~ ~,`) ~ I p
5e. Telephone no.: 919-872-1174
5f. Fax no.: 919-872-9214
5g. Email address: [e-mail]

6a. Name: Tom Fitzgerald, P.E. (Engineering Consultant)
6b. Business name: Schnabel Engineering
6c. Street address: 11-A Oak Branch Drive
6d. City, state, zip: Error! Not a valid bookmark self-reference.
6e. Telephone no.: 336-274-9456
6f. Fax no.: 336-274-9486
6g. Email address: [e-mail]

Page 2 of 11
PCN Form -Version 1.3 December 10, 2008 Version

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): 6807-24-9338.00, 6807-23-4628.00, 6807-23-1783.00
1 b. Site coordinates (in decimal degrees): Latitude: Error! Not a valid bookmark self-reference.
Longitude: - 80.3466
1c. Property size: #9338 = 11.0 acres; #4628 = 0.80 acre; #1783 = 1.22 acre
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.): Shattalon Lake & UT to Muddy Creek
2b. Water Quality Classification of nearest receiving water: Shattalon Lake & UT to Muddy Creek =Class C
2c. River basin: Error! Not a valid bookmark self-reference., USGS:
03040101
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:
Shattalon Lake Dam is a 25-ft high earthen dam constructed in 1959 on a small tributary of Muddy Creek in the Shattalon Lake
Estates neighborhood, six miles northwest of downtown Winston-Salem. Tonbridge Lane is a residential street built along the dam
crest. The lake's surface area is about five acres, and its drainage basin area is 243 acres (0.38 sq. mi). The primary dam outlet was
a 4-inch ductile iron riser and horizontal pipe through the dam, but this pipe became corroded and clogged up a few years ago. The
emergency spillway, a 72-inch corrugated metal culvert under Tonbridge Lane, is now functioning as the primary spillway. With all
of the lake's outflow shifted to the emergency spillway for the past few years, the previously ephemeral ravine below the culvert has
eroded to become a deep gully along the toe of the dam. This recently eroded channel, 125 feet long from the emergency spillway to
the original stream below the clogged outlet, now functions as a stream and is regulated as a stream by US-ACE and NC-DWQ.
3b. List the total estimated acreage of all existing wetlands on the property:
Shattalon Lake Dam is a 25-ft high earthen dam constructed in 1959 on a small tributary of Muddy Creek in the Shattalon Lake
Estates neighborhood, six miles northwest of downtown Winston-Salem. Tonbridge Lane is a residential street built along the
dam crest. The lake's surface area is about five acres, and its drainage basin area is 243 acres (0.38 sq. mi). The primary dam
outlet was a 4-inch ductile iron riser and horizontal pipe through the dam, but this pipe became corroded and clogged up a few
years ago. The emergency spillway, a 72-inch corrugated metal culvert under Tonbridge Lane, is now functioning as the
primary spillway. With all of the lake's outflow shifted to the emergency spillway for the past few years, the previously
ephemeral ravine below the culvert has eroded to become a deep gully along the toe of the dam. This recently eroded channel,
125 feet long from the emergency spillway to the original stream below the clogged outlet, now functions as a stream and is
regulated as a stream by US-ACE and NC-DWQ.
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
The natural stream from the clogged dam outlet pipe to the southern property line (Pfaff property) is approximately 156 feet
long and 8 to 12 feet wide at ordinary high water. The recently eroded channel ("new stream") from the emergency spillway
culvert outlet to the natural stream is 125 feet long . Total stream length on the property is thus 281 feet. The Forsyth County
Soil Survey (1976, sheet 22) shows this stream flowing southwest approximately 1500 feet from Shattalon Dam to Muddy
Creek. The Soil Survey also shows three influent streams to Shattalon Lake, beyond the project construction area. The
southernmost influent stream is about 500 feet north of the dam.
3d. Explain the purpose of the proposed project:
The City plans to install a new riser and outlet pipe through the dam large enough to pass the design storm flow. The
emergency outlet culvert will no longer be needed and will be removed and filled. The downstream dam slope will be extended
to increase its stability and meet current dam safety standards. The recently eroded stream segment (125 lin. ft) plus I S feet of
the natural stream and 545 square feet of adjacent wetland will be filled to accommodate the dam slope extension. Anew
plunge pool at the dam outlet will prevent downstream channel erosion. The purpose of the project is to repair and maintain the
existing dam, lake and roadway and bring the dam into compliance with current NC dam safety standards. The lake will be
temporarily drained during construction, and upon refilling it will return to its original normal pool elevation and volume.
Page 3 of I 1
PCN Form -Version 1.3 December 10, 2008 Version

3e. Describe the overall project in detail, including the type of equipment to be used:
The construction sequence for repairing Shattalon Dam will generally follow this outline: 1) Dewater existing lake (designed by
contractor) and remove or relocate fish. 2) Install Erosion and Sediment Control devices. 3) Close Tonbridge Lane and install
detour signage. 4) Clear and grub the dam construction areas and remove asphalt pavement to the limits shown with construction
equipment . 5) Excavate and remove the existing emergency spillway 72 inch CMP and replace with earth fill. 6) Install the
permanent riprap plunge pool and additional E&S measures as necessary. 7) Install a temporary cofferdam in the lake and
stormwater conveyance piping (designed by Contractor). 8) Excavate through embankment for construction of new riser anal outlet
piping. 9) Construct new riser and outlet piping, cradle, and drainage diaphragm. Remove or grout the old piping to be abandoned
in place. 10) Reconstruct the dam embankment with compacted earthfill. 11) Remove upstream cofferdam and regrade disturbed
areas in lake bed to pre-existing contours. 12) Permanently seed all disturbed areas above normal pool that are not covered with
riprap or pavement. 13) Repave Tonbridge Lane and re-open roadway to traffic. 14) Clear vegetation established around the lake
perimeter. After approval is obtained from NCDENR, close the gate and allow the lake to refill. 15) Remove E&S measures once
permanent vegetation is established.
The new plunge pool is designed so that its outlet is level with the stream bed downstream, allowing free movement of fishes and
aquatic invertebrates between the plunge pool and the stream, even at low flow conditions. The plunge pool banks beyond the
required riprap stabilization will be planted with native alluvial forest trees or shrubs, except for the portion closest to the toe of the
dam (15 feet) which must be kept free of trees to protect the dam from root damage. The plunge pool will function like a natural
Piedmont stream pool, and is therefore a temporary impact that does not result in loss of stream.
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: JD by John Thomas, 16 Oct 2009
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: KCI Associates
Name (if known): Steven Stokes, KCI Associates Other: NA
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
16 October 2009: Mr. Thomas confirmed the stream and wetland delineation by KCI below the darn.
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. NA.
6. Future Project Plans
6a. Is this a phased project? ^Yes ®No
6b. If yes, explain.

Page 4 of 11
PCN Form -Version 1.3 December 10, 2008 Version

C. Proposed Impacts Inventory
1. Impacts Summary
1 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. > NONE
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type ofjurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ -non-404, other) (acres)
Tem ora T

W1 ®P ^ T
Filled
Alluvial depression ®Yes
^ No ®Corps
®DWQ
0.0125
W2 ^ P ^ T NA NA ^ Yes ^Corps NA
^ No ^DWQ
W3 ^ P ^ T NA NA ^ Yes ^Corps NA
^ No ^DWQ
2g. Total wetland impacts 0.0125
2h. Comments: The wetland to be filled is maintained (and possibly created) by seepage from the existing dam.
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 ofjurisdiction 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
Filled "New"channel
below emergency ®PER
^INT ®Corps
^ pWO
10 ft
125 ft
spillway

S2 ®P ^ T
Filled/piped UT Muddy Cr
natural channel ®PER
^INT ®Corps
^DWQ 10 ft 15 ft
S3 ^ P ®T Plunge pool UT Muddy Cr
natural channel ®PER
^INT ®Corps
^DWQ 10 ft 45 ft
3h. Total stream and tributary impacts 185 LF
3i. Comments: Based on conversation with ACE agent John Thomas and DWQ agent Sue Homewood on 20 Dec 2010 the
proposed plunge pool should qualify as a temporary stream impact. The pool outlet will be level with the stream bed downstream
allowing free movement of fishes and aquatic invertebrates between the pool and stream, even at low flow conditions. Trees
planted beyond the riprap bank stabilization will provide riparian habitat.
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
Tem ora T
01 ®P ^ T Shattalon Lake New Riser Pipe + Riprap Lake 0.0245 acre
Page 5 of 11
PCN Form -Version 1.3 December 10, 2008 Version

02 ^ P ®T Shattalon Lake New Outlet Pipe Temporary Lake 0.105 acre
Excavate & Backfill
03 ^ P ®T Shattalon Lake Temp. Cofferdam Enclosure Lake 0.328 acre
04 ^ P ^ T NA NA NA NA
4f. Total open water impacts 0.328 acre
4g. Comments: Error! Not a valid bookmark self-reference.
5. Pond or Lake Construction
If and or lake construction ro osed, then com lete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose of (acres)
number pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1 NA 0 0 0 0 0 0 0
P2 NA 0 0 0 0 0 0 0
Sf. Total 0 0 0 0 0 0 0
5g. Comments: Repair of existing dam; pool area and elevation will not change.
5h. Is a dam high hazard permit required? ^ Yes ®No If yes, permit ID no:
Shattalon Dam is classified as intermediate-
hazard and must safely pass the 100-year storm. DLR Dam Inventory # FORSY-145
5i. Expected pond surface area (acres): 5 acres (existing)
5j. Size of pond watershed (acres): 243 acres
5k. Method of construction: Earthen embankment
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 im acts re uire miti ation, then ou MUST fill out Section D of this form.
6a. ^ Neuse ^Tar-Pamlico ^ Other:
Project is in which protected basin? Yadkin, No Buffers ^ 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)
Tem ora T im act re uired?
B1 ^ P ^ T NA NA ^ Nos NA NA

62 ^ P ^ T NA NA ^ NOS NA NA
63 ^ P ^ T NA NA ^ NOS NA NA

6h. Total buffer impacts NA NA
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
Page 6 of 11
PCN Form -Version 1.3 December 10, 2008 Version

1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The downstream dam face must be extended to meet current safety requirements, so it is not possible to avoid the small wetland and
portion of the stream at the toe of the dam. The new plunge pool is designed to function like a natural pool in a Piedmont stream, its outlet
matching the grade of the natural channel below to allow free passage of aquatic life. Open water impacts within the lake will be mostly
temporary (dewatering, cofferdam, excavation and backfill); the new riser pipe and its surrounding riprap will be the only permanent lake
impact.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Erosion and sedimentation controls will be installed to prevent sediment damage to the stream below the dam during construction.
The lake drawdown rate will not exceed one foot per day to avoid the possibility of upstream embankment or reservoir rim slope
failure and scouring erosion of the channel downstream. The temporary cofferdam will be able to contain stormflows in the lake up
to the 10-year magnitude storm. During construction, low to normal flow into the plunge pool and stream will generally be equal to
the lake's inflow after the lake is drained. A minimum streamflow will also be maintained while the lake is being refilled.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
a. 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): ^ pWQ ^ Corps

c. If yes, which mitigation option will be used for this project? ^ Mitigation bank
^ Payment to in-lieu fee program
^ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank: NA
3b. Credits Purchased (attach receipt and letter) ype NA Quantity NA
3c. Comments: NA
4. Complete if Making a Payment to In-lieu Fee Program
a. Approval letter from in-lieu fee program is attached. ^ Yes
b. Stream mitigation requested: A linear feet
c. If using stream mitigation, stream temperature: ^ warm ^ cool ^cold
d. Buffer mitigation requested (DWQ only): A square feet
e. Riparian wetland mitigation requested: A acres
f. Non-riparian wetland mitigation requested: A acres
g. Coastal (tidal) wetland mitigation requested: A acres
h. Comments:
Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
NA
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) -required by DWQ
Page 7 of 11
PCN Form -Version 1.3 December 10, 2008 Version

a. Will the project result in an impact within a protected riparian buffer that requires ~ Yes ®No
buffer mitigation?
b. 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.
Zon c.
Reason for impact d.
Total impact
Multiplier 6e.
Required mitigation
e (square feet) (square feet)
one 1 NA NA 3 (2 for Catawba) NA
one 2 NA NA 1.5 NA
6f. Total buffer mitigation required: NA
g. 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).
NA
h. Comments: NA
Page 8 of 11
PCN Form -Version 1.3 December 10, 2008 Version

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. 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: NA
2. Stormwater Mana ement Plan
2a. What is the overall percent imperviousness of this project? NA
2b. Does this project require a Stormwater Management Plan? ^ Yes ®No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
Error! Not a valid bookmark self-reference.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
NA
^ Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ^DWQ Stormwater Program
^ DWO 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? City of Winston-Salem
^ Phase II
^ NSW
3b. Which of the following locally-implemented stormwater management programs ^ 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 Stormwater Pro ram Review
^ Coastal counties
^ HQW
4a. Which of the following state-implemented stormwater management programs apply ^ ORW
(check all that apply): ^ Session Law 2006-246
^ Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
tt
h
d?
^ Yes ^ No
a
ac
e
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ^ Yes ^ No
Page 9 of 11
PCN Form -Version 1.3 December 10, 2008 Version

5b. Have all of the 401 Unit submittal requirements been met? ^Yes ^ No
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ®Yes ^ No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ^Yes ®No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. 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
letter.)
^ Yes
^ No
Comments: The project qualifies as repair and maintenance of an existing dam with no
increase in capacity and minor impact to the stream below. NC Dam Safety does not
require a SEPA EA for this project.
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): NA
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.
Project will not increase lake elevation or water capacity; it is solely for dam safety purposes, not for growth.
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.
NA -- The project will not generate wastewater. Shattalon Lake Estates has existing sewer service.
Page 10 of 11
PCN Form -Version 1.3 December 10, 2008 Version

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 concerning Endangered Species Act ®Yes ^ No
impacts?
® 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?
US-FWS and NC-NHP online lists of protected species reported from Forsyth County, and field survey by RJG&A to demonstrate
that no federally protected species is likely to occur in the project area, based on lack of suitable habitat.
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?
NC-DMF and NC-WRC
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?
Because the entire proposed construction area was previously disturbed decades ago by construction of the existing dam, lake, road,
and adjacent residences, there is virtually no likelihood of any significant archaeological or historic remains in the project area.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in aFEMA-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? NA -- The project will not generate wastewater. Shattalon
Lake Estates has existing sewer service.
Robby Stone 19 May 201 I
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Page 11 of 11
PCN Form -Version 1.3 December 10, 2008 Version

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RISER PLAN VIEW
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(2) STAINlE39 9TEEL BOLTS PER
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CIRCUMFERENCE
MMMOIE JOINT YMTH GASKET
H)EOUALLY SPACE02-W WIOEx Y.-IN THK:K ~ -~~.•
+AWMIZEO STEEL STRAPS PLACED AT EACH -~ 'Vl~l_71
PRECAST JOINT MOUND THE PERIMETER
~,~ RISER JOINT DETAIL.
~~~ Ol~LL ,nr~ly
_- ~~
NOTES
1 THE GENERAL CONSTRUCTION BEOUENCE FOR THE RISER SHALL BE AS FOLLOWS:
11 THE FOUNDATION 6UB•ORADE FOR THE PoSER SHALL BE OBSERVED lY THE ENGINEER fOR
APPROVAL OVER-EXCAVATION OF SOFT OR LOOSE SOEA MAY BE REOW RED. COMPACTED
NCDOT FST STONE SHOULD B! USED AS BACKFILL TO THE DESKiNATED SUB6RAD! ELEVATION
ILS APPROVED 8Y THE ENGINEER GEOTEXTIIE SHALL BE PLACED BENEATH THE STONE
I 1 THE NEW RISER AND CONCRETE FOUNDATION SWILL BE CONSTRUCTED THE NEW CONDUIT,
GATEVAWE, AND CRADLE SNALI BE WSTALLED TRASH RACKS SHALL BE FAERICAIED AND
INSTALLED AS SHOWN
1 7 EMTHFILI, SAND, ANO RIPRAP SNILLL BE PLACED MO COMPACTED AS SHCNNi ON SHEET B~4
1e-IN [
I; o•
IA 6TEEL STEM
W LEVEL TRASH
ARD SEE
EET B2
RISER- Plan View
ISOMETRIC VIEW
NTs

LOCIGNG MECHANISM TO BE
DESIGNED BV CONTRACTOR
STEM GUIDE LOCATED
10-IN FROM TOP OF RISER
STEM SLEEVE BOLTED TO
RISER AT APPROXIMATE
MID-SPAN OF THE STEM
STEM AS SPECIFIED BV VALVE
MANUFACTURER TO EXTEND TO
WATER SURFACE
1-IN pA GALVANIZED
STEEL STEM SLEEVE
ADJUST iRA6I1RACK RODS AS
NEEDED MOUND STEM ANO VAWE
12-IN OIA Fl ~ FL GATE
VALVE
LOW LEVEL TRASH ~
RISER TRASH GUMD NOT SHOWN SEE SHEET B-7
- EL 775 ]
CUT AS NEEDED TO
REACH SPECIFIED
.!~.
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BOlT3 SHALL EE EPOxV
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LENOTM 2-Nl LESS THAN THE
RISER WAIL THICKNESS
Gl1ARD SEE - \
SNEET B! - GASKET CAST IN -
AUNFIOIE WALL
\
y ,~ GROUT WALL -~- 1S~N pP
SLEEVE IN PUKE
8006 SPACED m S-IN OC EW -- ~.. _

~ _ _
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'-
C-~ _ -FLRPE CASTIN WALLBY
PRECAST MANUFACTURER
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AC ]
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E CONCRETE
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CAST IN PUKE CONCRETE BABE
PRECAST RISER BASE 3 RISER SECTION VIEW
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