20191604 Ver 1_PCN Form Submission_20191119

DWR
mrlslon of Water Resources
Pre -Construction Notification (PCN) Form
September 29, 2018 Ver 3
Initial Review
Has this project met the requirements for acceptance in to the review process?*
r Yes
r No
Is this project a public transportation project?*
C Yes r No
Change only if needed.
BIMS # Assigned * Version#*
20191604 1
Is a payment required for this project?*
r No payment required What amout is owed?*
r Fee received r $240.00
r Fee needed - send electronic notification IT $570.00
Reviewing Office *
Winston-Salem Regional Office - (336) 776- Select Project Reviewer*
9800 Sue Homewood:eads\slhomewood
Information for Initial Review
1a. Name of project:
High Point Upper Piedmont Lake Dredging & Dam Maintenance
1a. Who is the Primary Contact?*
Trevor Spencer, City of High Point Public Services Manager
1 b. Primary Contact Email: *
[e-mail]
Date Submitted
11/19/2019
Nearest Body of Water
UT East Fork Deep River
Basin
Cape Fear
Water Classification
WS-IV
Site Coordinates
Latitude:
36.0578
Longitude:
-79.9461
1c. Primary Contact Phone:*
[phone]
A. Processing Information 6
County (or Counties) where the project is located:
Guilford
Is this project a public transportation project?*
r Yes r No
1a. Type(s) of approval sought from the Corps:
W Section 404 Permit (wetlands, streams and waters, Clean Water Act)
r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
1b. What type(s) of permit(s) do you wish to seek authorization?
W Nationwide Permit (NWP)
r Regional General Permit (RGP)
r Standard (IP)

1c. Has the NWP or GP number been verified by the Corps?
r Yes r- No
Nationwide Permit (NWP) Number:
NWP Numbers (for multiple NWPS):
1d. Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - Regular
r Non-404 Jurisdictional General Permit
r Individual Permit
39 - Commercial/Institutional Developments
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR401 Certification:
For the record only for Corps Permit:
r 401 Water Quality Certification - E)press
V Riparian Buffer Authorization
1f. Is this an after -the -fact permit application?*
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
Acceptance Letter Attachment
1h. Is the project located in any of NC's twenty coastal counties?
r Yes r No
1j. Is the project located in a designated trout watershed?
r- Yes r No
B. Applicant Information
1d. Who is applying for the permit?
W Owner r Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
r Yes r- No
2. Owner Information
2a. Name(s) on recorded deed:
City of High Point
2b. Deed book and page no.:
2c. Responsible party:
Trevor Spencer, PE, Public Services Manager
2d.Address
Street Address
816 East Green Drive
Address tine 2
City
High Point
Postal / Zip Code
27260
2e. Telephone Number:
[phone]
2g. Email Address:*
trevor. [e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
Gerald Pottern
State / Province / Region
NC
Country
us
2f. Fax Number:
r Yes r No
r- Yes r No

4b. Business Name:
Mogensen Mitigation Inc
4c.Address
Street Address
104 East Chestnut Ave
Address tine 2
CKY
Wake Forest
Postal / Zip Code
27587
4d. Telephone Number:
[phone]
4f. Email Address:*
[e-mail]
Agent Authorization Letter*
Agent Authoriz signed.pdf
State / Province / Region
NC
Country
US
4e. Fax Number:
25.46KB
C. Project Information and Prior Project History C^)
1. Project Information
1b. Subdivision name:
(d appropriate)
1c. Nearest municipality/ town:
High Point / Greensboro
2. Project Identification
2a. Property Identification Number:
7813998919
2c. Project Address
Street Address
4239 Piedmont Parkway
Address Line 2
City
Greensboro
Postal / Zip Code
27410
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
UT East Fork Deep River
3b. Water Resources Classification of nearest receiving water:*
WS-IV
3c. What river basin(s) is your project located in?*
Cape Fear
3d. Please provide the 12-digit HUC in which the project is located.
03030003-0102
4. Project Description and History
2b. Property size:
17.16
State / Province / legion
NC
cour"
US
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The existing stormwater/sediment impoundment comprises a chain of three ponds: the main dam is 1,400 ft downstream of Piedmont Parkway and two sub -impoundments are upstream
of Piedmont Parkway. All three ponds have the same normal pool elevation of 806 ft. The uppermost pond (1.2 acre) has accumulated sediment over the past 30 years due to land
development, and is in need of dredging to restore its stormwater and pollutant retention capacity. The pond has two perennial influent streams (one from the east, one from the north)
and several adjacent wetlands. Most of the pond edge has a forested buffer except along the south edge (dam) and east edge (utility lines). Surrounding land uses are predominantly
commercial and industrial, interspersed with patches of forest.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes r No r Unknown
4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)
PCN Figures-t1SGS Quad.pdf 160.79KB
4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)

PCN Figures-NRCS Soil.pdf
161.58KB
4f. List the total estimated acreage of all existing wetlands on the property:
1.25 acre in JD review area (6.2 acre)
4g. List the total estimated linear feet of all existing streams on the property:
370 feet (not within JD review area)
4h. Explain the purpose of the proposed project:*
The purpose of this project is to remove sediment which has accumulated in Upper Piedmont Lake since it was constructed. Sediment removal is required to maintain the lake's long-
term functionality as a stormwater detention facility and to improve capture of pollutants in upstream urban runoff.
41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
Piedmont Lake (main dam, downstream) will be lowered to an elevation that will effectively drain the upper pond. Erosion control devices will be installed and equipment access points
created (1) along the upstream side of the upper dam, (2) on the peninsula on the east side of the upper pond, and (3) belowthe upper dam to access the culvert outlet between the
upper pond and middle pond. A temporary rock check dam and turbidity curtain will be installed at the culvert outlet at the head of the middle pond, where the upper pond drains into it.
A temporary earthen cofferdam will be installed in the upper pond to divert stream flow around the active excavation area, and pumps may be used if necessary. (Flow diversion and
pumping details to be determined by the contractor). After dewatering, the upper pond bed (1.03 acre) will be mechanically dredged using excavators, loaders, and dump trucks. No
streams or wetlands will be disturbed, other than temporary dewatering of fringe wetlands during dredging. One to three feet of accumulated sediment will be removed, totaling roughly
2,200 cubic yards, and disposed off -site on uplands (to be determined by contractor). After dredging is complete, the cofferdam, check dam, and turbidity curtain will be removed and
the water level restored. Disturbed areas above normal pool elevation will be reseeded and stabilized, and the disturbed zone 1 riparian buffer areas beyond the dam footprint will be
replanted with native trees and shrubs.
4j. Please upload project drawings for the proposed project.
HP Piedmont Dam FinalPlans Sealed.pdf 11.33MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
r Yes r No O Unknown
Comments:
delineated in March 2019 by MMI
5b. If the Corps made a jurisdictional determination, what type of determination was made?
r Preliminary r Approved r Not Verified r Unknown r N/A
Corps AID Number:
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known): Gerald Pottern
Agency/Consultant Company: Mogensen Mitigation Inc
Other:
5d1. Jurisdictional determination upload
Wetland Maps-1.pdf 1017.3KB
JDRequest+PJDapp.High PtPond-1.pdf 471.25KB
6. Future Project Plans
6a. Is this a phased project?*
r Yes r No
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
No
ID. Proposed Impacts Inventory U
1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
r Wetlands f Streams -tributaries P Buffers
W Open Waters r Pond Construction
4.Open Water Impacts
4a. Site # _114al. Impact Reason 4b. Impact type 4c. Name of wat,rbody 4d. Activity type 4e. Wate rbody type 4f. Impact area
O-1
sediment removal
P
pond on UT E Fork Deep R
Excavation
Pond
1.03
O-2
sed check dam
T
_11
pond on LIT E Fork Deep R
Fill
_11
Pond
01
O-2
turbidity curtain
T
pond on UT E Fork Deep R
Dewatering
Pond
0.03

4g. Total temporary open water Impacts:
0.04
4g. Total permanent open water impacts:
1.03
4g. Total open water impacts:
1.07
4h. Comments:
Upper pond (including area to be excavated) will also be temporarily dewatered: 1.20 acre. Minor dewatering of pond fringe wetlands will also occur
(area not quantified). The permanent excavation impact (1.03 acre open water) will not cause any loss of open water functions.
6. Buffer Impacts (for DWR)
6a. Project is in which protect basin(s)?
Check all that apply.
F Neuse r Tar -Pamlico
F Catawba R Randleman
r Goose Creek r Jordan Lake
r Other
6b. Impact Type 6c. Per or Temp 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 impact 6g. Zone 2 impact
B-1 allowable (construc access)
T
pond on UT E Fork Deep R
No
1,190
640
B-2 allowable (construc acc
T
pond on UT E Fork Deep R
No
500
400
B-3 allowable (construc acc
T
pond on UT E Fork Deep R
No
2,950
0
6h. Total buffer impacts:
Zone 1 Zone 2
Total Temporary impacts: 4,640.00 1,040.00
Zone 1 Zone 2
Total Permanent impacts: 0.00 0.00
Zone 1 Zone 2
Total combined buffer impacts: 4,640.00 1,040.00
61. Comments:
Disturbed zone-1 and zone-2 buffers will be replanted with native hardwood trees after construction.
Supporting Documentation
Waters+Buffers Impacts Map-1.pdf 392KB
E. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
Pond access points were chosen to take advantage of previously cleared uplands and other non -wetland and non -buffer areas along the dam to the
extent practicable. The upper pond and upper portion of the middle pond will be dewatered (by lowering the water at the lower pond) so that sediment
can be excavated "dry", thus minimizing turbidity.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
The check dam at the culvert outlet between the upper and middle ponds will help contain sediment if a large storm occurs. The turbidity curtain will
have floats to rise and fall with the pond elevation. A temporary cofferdam across the pond bed (within the area to be excavated) will divert flow
through the pond and keep water out of the active excavation area.
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?
r Yes R No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
The only permanent impact will be deepening of 1.03 ac of open water pond by 1 to 3 feet. There will be no loss of function, and no compensatory mitigation is required.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan

1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes r No
What type of SCM are you providing?
r Level Spreader
r Vegetated Conveyance (lower SHW T)
r Wetland Swale (higher SHWT)
r Other SCM that removes minimum 30 % nitrogen
r Proposed project will not create concentrated stormwater flow through the buffer
Diffuse Flow Documentation
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes r No
2b. Does this project meet the requirements for low density projects as defined in 15ANCAC 02H .1003(2)?
r Yes r No
Comments:
Not applicable: no new built -upon area.
G. Supplementary Information
1. Environmental Documentation
la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
r Yes r No
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 (North Carolina)
Environmental Policy Act (NEPA/SEPA)? *
r Yes r No
Comments:*
Local (City) funds; project does not meet or exceed SEPA document thresholds.
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 21-1.1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
r Yes r No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
r Yes r No
3b. If you answered "no," provide a short narrative description.
Dredging the pond to restore stormwater and sediment capacity will help mitigate the effects of future development upstream, but will not cause
additional development.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
r Yes r Nor NIA
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
r Yes r No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
r Yes r No
5c. If yes, indicate the USFWS Field Office you have contacted.
Raleigh
5d. Is another Federal agency involved?*
r Yes r No
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
r Unknown

5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
r Yes r No
5g. Does this project involve bridge maintenance or removal?
r Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?*
r Yes r No
Si. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
r Yes r No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
US-FWS and NC-NHP list three federally protected species in Guilford County: Bald Eagle, Small -whorled Pogonia, and Schweinitts Sunflower. None
of these species is reported to occur within three miles of the project, and no suitable habitat is present in the project impact areas, based on field
investigations by MMI.
Consultation Documentation Upload
NHP Report HP Piedmont_ Pkwy_Pond_14857.pdf 902.29KB
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes
r No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
NOAA-NMFS Essntial Fish Habitat online mapping tool.
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 status?*
r Yes
r No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources? *
SHPO online GIS viewer. Three sites are known within one mile of the project area, none is listed or eligible for listing on the National Register.
7c. Historic or Prehistoric Information Upload
PCN Figures-SHPO-map.pdf 164.88KB
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain?*
r Yes r No
8b. If yes, explain how project meets FEMA requirements:
The project will remove accumulated sediment to restore flood capacity. No new permanent above -grade fill will be added
8c. What source(s) did you use to make the floodplain determination?*
Guilford County FIRM panel # 7824 from https://fris.nc.gov
Miscellaneous U
Comments
Miscellaneous attachments not previously requested.
PCN Figures-FEMA-FIRM.pdf 132.41<6
Signature U
17 By checking the box and signing below, I certify that:
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act');
I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act');
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
I intend to electronically sign and submit the PCN form.
Full Name:
Gerald B Pottern
Signature

Date
11/19/2019

AGENT AUTHORIZATION FORM -- US Army Corps of Engineers Permit
PROPERTY LEGAL DESCRIPTION: High Point Upper Piedmont Lake Maintenance
LOT NO.
PLAN NO. PARCEL ID: PIN # 7813-99-8919
STREET ADDRESS: 4239 Piedmont Parkway, Greensboro, NC 27410
Please print:
Property Owner 1: City of High Point, PO Box 230, High Point NC 27261
Property Owner 2:
The undersigned, registered property owners of the above noted property, do hereby authorize
Gerald Pottern of Mogensen Mitigation Inc. (MMI-RIGA)
(Contractor / Agent) (Name of consulting firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this
permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
name: Trevor Spencer, PE — Public Services Manager
address: City of High Point, PO Box 230, High Point NC 27261
Telephone: [phone] Email; trevor.s encer hi h ointnc. ov
We hereby certify the above information submitted in this application is true and accurate to the best of
our knowledge.
Authorized Sign ure I
Date: d _( ( i // 2
Authorized Signature 2
Date:

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0-2 open waters: 0.04 ac temporary impact for turbidity curtain and sediment check dam B-2 Randleman buffers: 500 SF zone-1, 400 SF zone-2, temporary, cleared for construction access and replanted
No impacts to wetlands or streams. B-3 Randleman buffers: 2950 SF zone-1, 0 SF zone-2, temporary, cleared for construction access and replanted

North Carolina Department of Natural and Cultural Resources
Natural Heritage Program
Govemor Roy Cooper
October 5, 2018
Gerald Pottern
Mogensen Mitigation Inc (was Robert J Goldstein & Assoc)
104 East Chestnut Ave
Wake Forest, NC 27587
RE: HighPoint Piedmont Pkwy Pond; GBP-2018-09
Dear Gerald Pottern:
Secretary; Susi H. Hamilton
NCNHDE-7224
The North Carolina Natural Heritage Program (NCNHP) appreciates the opportunity to provide information
about natural heritage resources for the project referenced above.
Based on the project area mapped with your request, a query of the NCNHP database, indicates that there are
no records for rare species, important natural communities, natural areas, and/or conservation/managed areas
within the proposed project boundary. Please note that although there may be no documentation of natural
heritage elements within the project boundary, it does not imply or confirm their absence; the area may not have
been surveyed. The results of this query should not be substituted for field surveys where suitable habitat exists.
In the event that rare species are found within the project area, please contact the NCNHP so that we may
update our records.
The attached `Potential Occurrences' table summarizes rare species and natural communities that have been
documented within a one -mile radius of the property boundary. The proximity of these records suggests that
these natural heritage elements may potentially be present in the project area if suitable habitat exists. Tables of
natural areas and conservation/managed areas within a one -mile radius of the project area, if any, are also
included in this report.
If a Federally -listed species is found within the project area or is indicated within a one -mile radius of the project
area, the NCNHP recommends contacting the US Fish and Wildlife Service (USFWS) for guidance. Contact
information for USFWS offices in North Carolina is found here:
https://www.fws.gov/offices/Directory/ListOffices.cfm?statecode=37.
Please note that natural heritage element data are maintained for the purposes of conservation planning, project
review, and scientific research, and are not intended for use as the primary criteria for regulatory decisions.
Information provided by the NCNHP database may not be published without prior written notification to the
NCNHP, and the NCNHP must be credited as an information source in these publications. Maps of NCNHP
data may not be redistributed without permission.
The NC Natural Heritage Program may follow this letter with additional correspondence if a Dedicated Nature
Preserve, Registered Heritage Area, Clean Water Management Trust Fund easement, or Federally -listed
species are documented near the project area.
If you have questions regarding the information provided in this letter or need additional assistance, please
contact Rodney A. Butler at rodney.butler= ncdcr.gov or 919-707-8603.
Sincerely,
NC Natural Heritage Program
MAILING ADDRESS: Telexhone: 0191 7D7-8107 LOCATICN
1651 Mai Service Center wvow.ncnhv.org 121 West Jones S-reet
Ralsigh, NC 27699-1651 Ralsigh, NC 27603

Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Within a One -mile Radius of the Project Area
HighPoint Piedmont Pkwy Pond
Project No. GBP-2018-09
October 5, 2018
NCNHDE-7224
No Element Occurrences are Documented Within a One -mile Radius of the Project Area
No Natural Areas are Documented Within a One -mile Radius of the Project Area
Managed Areas Documented Within a One -mile Radius of the Project Area
Managed Area Name Owner Owner Type
Guilford County Open Space Guilford County: multiple local government Local Government
Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.org/content/help. Data query generated on October 5, 2018; source: NCNHP, Q3 July 2018. Please resubmit your
information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database.
Page 2 of 3

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11. REMOVE THE DOWNSTREAM TURBIDITY CURTAIN AFTER THE LAKES HAVE
DAM AT THE OUTLET OF THE SLUICE GATE SPILLWAY, AND A TURBIDITY CURTAIN THAT
REFILLED AND ANY TURBIDITY HAS SUBSIDED.
WOULD BLOCK TURBID WATER FROM FLOWING DOWNSTREAM TO PIEDMONT LAKE.
12. REMOVE AREA OF TEMPORARY ACCESS ROAD AS INDICATED ON PLAN.
4. CLEAR AND GRUB TREES AND BRUSH AND GRUB WITHIN 15-FT SETBACK OF DAM
AND APPURTENANT FEATURES AS SHOWN ON THE DRAWINGS.
13 PERMANENTLY PLANT AREAS AS SHOWN ON PLANS PER SPECIFICATION 32 9300
PLANTS,
5. COORDINATE WITH THE CITY TO LOWER PIEDMONT LAKE TO EL 800 THROUGH
THE PRINCIPAL INTAKE USING THE 16-INCH VALVE. THE DRAWDOWN MUST BE
14. PERMANENTLY SEED ANY DISTURBED AREAS ABOVE THE NORMAL LAKE WATER
PERFORMED IN A CONTROLLED MANNER NOT EXCEEDING A RATE OF ONE FOOT PER
SURFACE ELEVATION.
DAY. MAINTAIN THE SLUICE GATE AT UPPER PIEDMONT LAKE IN THE OPEN POSITION.
15. REMOVE REMAINING PERIMETER EROSION CONTROL EQUIPMENT AND SEDIMENT
6. REMOVE EXISTING SEDIMENT TO EXPOSE NATURAL SOILS IN THE LAKE AND TO
CONTROL BMPS TO BE REMOVED AFTER SITE HAS BEEN REESTABLISHED HEALTHY
THE TOP OF CONCRETE AT THE ENTRANCE TO AND WITHIN THE SLUICE GATE
GRASS VEGETATIVE COVER HAS BEEN RE-ESTABLISHED ON CLEARED AND GRUBBED
SPILLWAY. EXCAVATE DIVERSION DITCHES OR INSTALL SIMILAR MEASURES, AS
DISTURBED AREAS.
NEEDED, TO PASS BASE FLOWS, MAINTAIN THE LAKE IN A DEWATERED CONDITION,
AND PROMOTE DEWATERING OF THE SEDIMENT.
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4' WIDTH MIN. (AT TOP)
ILTER FABRIC
1'-6" MIN. ® CENTER
FILTER FABRIC
TEMP SILT FENCE SUPPORTED
BY WIRE FENCE, 14 GUAGE,
6" MAX. MESH SPACING
(HOG WIRE)
5' STEEL POSTS (TYP.)
BOTTOM OF WIRE FENCE AND
FILTER FABRIC BURIED 6" IN
EXCAVATED TRENCH BACKFILLED
WITH CLEAN STONE
NOTES:
1. DO NOT INSTALL SILT FENCE WHERE FLOWS ARE CONCENTRATED.
2. WOODEN POSTS NOT ALLOWED.
3. STEEL POSTS SHALL WEIGH 1.33 LB/LF-
CITY OF HIGH POINT ISSUED 2-17-09 _ SILTFENCEOUT.DWG
NORTH CAROLINA REMSIONS STANDARD DRAWING FOR
ENGINEERING SERVICES DEPARTMENT TEMPORARY SILT FENCE WITH STONE OUTLET 600.01
FOR EROSION CONTROL
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TEMPORARY SILT FENCE WITH STONE OUTLET DETAIL
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CONTRACTOR TO PLACE CHECK DAM PROFILE (LOOKING DOWNSTREAM)
COAT DOWNSTREAM END OF SLUICEWAY.
1 1.5'
FILTE
CONSTRUCTION:
DRIP L
SNOW
BOARD
FENCE
1. PLACE TREE PROTECTION ZONE (TPZ) BARRIERS TO PREVENT THE APPROACH OF EQUIPMENT WITHIN THE DRIP LINE OF TREES
TO BE RETAINED. TEMPORARY TREE PROTECTION FENCING SHOULD BE ERECTED BEFORE CLEARING, DELIVERIES AND OTHER
CONSTRUCTION ACTIVITIES BEGIN ON THE SITE.
2. PROHIBIT OR RESTRICT ACCESS TO TPZs. POST "KEEP OUT' SIGNS ON ALL SIDES OF FENCING_ DO NOT PLACE EQUIPMENT,
CONSTRUCTION MATERIALS, TOPSOIL, OR FILL DIRT WITHIN THE TPZs.
3. DO NOT NAIL BOARDS TO TREES DURING BUILDING OPERATIONS.
4. MONITOR TPZs DURING ALL PHASES OF CONSTRUCTION.
5. DO NOT CUT TREE ROOTS INSIDE THE TREE DRIP LINE. IF A TREE MARKED FOR PRESERVATION IS DAMAGED, REMOVE IT AND
REPLACE IT WITH A TREE OF THE SAME OR SIMILAR SPECIES, 2-IN CALIPER OR LARGER, FROM BALLED AND BURLAPED NURSERY
STOCK WHEN ACTIVITY IN THE AREA IS COMPLETE,
6. OPTIMIZE TREE HEALTH FOR ALL TREE WITHIN TPZs. ASSIGN A TRAINED CREWMEMBER OR HIRE A PROFESSIONAL TO COMPLETE
REGULAR TREE MAINTENANCE TASKS, INCLUDING WATERING, FERTILIZATION, AND MULCHING TO PROTECT TREE ROOTS.
CONSULT A TREE PROFESSIONAL FOR ADVICE ON THESE PRACTICES IF NEEDED. DO NOT CHANGE THE SOIL, GRADE, DRAINAGE,
OR ACTION WITHOUT PROTECTING TREES THAT ARE TO BE KEPT.
7. ONCE PROJECT IS COMPLETED, TREE PROTECTION FENCING SHOULD BE LEFT UNTIL EROSION & SEDIMENT CONTROLS ARE
REMOVED. WHEN TPZ FENCING IS BEING REMOVED, PRUNE ANY DAMAGED TREES AND REPAIR ANY ROOTS THAT MIGHT HAVE
BEEN HARMED.
TREE PROTECTION FENCING
NTS
CONSTRUCTION:
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND OTHER OBJECTIONABLE MATERIAL AND GRADE
PROPERLY.
2. PLACE FILTER FABRIC OVER CLEARED AREA.
3. PLACE WASH STONE TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE PLANS AND SMOOTH IT.
4. PROVIDE DRAINAGE TO CARRY WATER TO A SUITABLE OUTLET.
MAINTENANCE:
TER 1, MAINTAIN THE STONE PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE CONSTRUCTION SITE.
THIS MAY REQUIRE PERIODIC TOPDRESSING WITH 2-INCH STONE.
2. AFTER EACH RAINFALL, INSPECT ANY STRUCTURE USED TO TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY.
3. IMMEDIATELY REMOVE ALL OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC ROADWAYS.
1. PLACE STONE TO THE LINES AND DIMENSIONS SHOWN IN THE PLAN ON A FILTER FABRIC FOUNDATION.
2. KEEP THE CENTER STONE SECTION AT LEAST 9 INCHES BELOW NATURAL GROUND LEVEL WHERE THE DAM ABUTS THE CHANNEL BANKS.
3. KEY THE STONE INTO THE DITCH BANKS AND EXTEND STONE AT LEAST 1.5 FEET BEYOND THE DITCH BANK TO KEEP WATER FROM CUTTING
AROUND THE ENDS OF THE CHECK DAM.
4. SET SPACING BETWEEN DAMS TO ASSURE THAT THE ELEVATION AT THE TOP OF THE LOWER DAM IS THE SAME AS THE TOE ELEVATION OF
THE UPPER DAM.
5. VERIFY THAT THE CHANNEL REACH ABOVE THE MOST UPSTREAM DAM IS STABLE.
6. ENSURE THAT OTHER AREAS OF THE CHANNEL, SUCH AS CULVERT ENTRANCES BELOW THE CHECK DAMS, ARE NOT SUBJECT TO DAMAGE
OR BLOCKAGE FROM DISPLACED STONES,
MAINTENANCE:
1. INSPECT CHECK DAMS AND CHANNELS WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR
IMMEDIATELY.
2. CLEAN OUT SEDIMENT, STRAW, LIMBS OR OTHER DEBRIS THAT COULD CLOG THE CHANNEL AS REQUIRED.
3. ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK DAM AND EROSION FROM HIGH FLOWS AROUND THE EDGES OF THE DAM.
CORRECT ALL DAMAGES IMMEDIATELY.
4_ REMOVE SEDIMENT ACCUMULATED BEHIND THE DAMS AS NEEDED TO PREVENT DAMAGE TO CHANNEL VEGETATION, ALLOW THE CHANNEL
TO DRAIN THROUGH THE STONE CHECK DAM, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER THE DAM. ADD STONES TO
THE DAM AS NEEDED TO MAINTAIN DESIGN HEIGHT AND CROSS SECTION.
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MINIMUM THICKNESS: 6 INCHES
MINIMUM LENGTH: 50 FEET
MINIMUM WIDTH: 25 FEET
GEOTEXTILE: REQUIRED TO SEPARATE COARSE
AGGREGATE FROM SUBGRADE
50' MIN.
CONSTRUCTION ENTRANCE DETAIL
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DIAMETER WOOD OR 1.33 POUNDS/ LINEAR FOOT STEEL).
MAINTENANCE:
1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTENANCE OF THE TURBIDITY CURTAIN FOR THE
DURATION OF THE PROJECT IN ORDER TO ENSURE THE CONTINUOUS PROTECTION OF THE WATERCOURSE.
2. SHOULD REPAIRS TO GEOTEXTILE FABRIC BE NECESSARY, REPAIR KITS ARE NORMALLY AVAILABLE FROM
THE MANUFACTURER. MANUFACTURER'S INSTRUCTIONS MUST BE FOLLOWED TO ENSURE THE ADEQUACY
OF THE REPAIR.
3, WHEN THE CURTAIN IS NO LONGER REQUIRED AS DETERMINED BY THE ENGINEER OR OWNER, THE CURTAIN
AND RELATED COMPONENTS SHALL BE REMOVED IN SUCH A MANNER AS TO MINIMIZE TURBIDITY.
REMAINING SEDIMENT SHALL BE SUFFICIENTLY SETTLED BEFORE REMOVING THE CURTAIN. SEDIMENT MAY
BE REMOVED AND THE ORIGINAL DEPTH (OR PLAN ELEVATION) RESTORED. ANY SPOILS MUST BE DISPOSED
OF IN THE PERMANENT DISPOSAL AREA.
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DATE: OCTOBER 2019
DRAWING NO.
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GENERAL SEEDING NOTES:
1. IF WORK IN DISTURBED AREAS STOPS FOR MORE THAN 21 WORKING DAYS, TEMPORARY
SEEDING SHALL BE APPLIED TO STABILIZE THE AREA.
2. COMPLETE GRADING BEFORE PREPARING SEEDBEDS, AND INSTALL ALL NECESSARY
EROSION CONTROL PRACTICES SUCH AS, DIKES, WATERWAYS, AND BASINS. MINIMIZE STEEP
SLOPES BECAUSE THEY MAKE SEEDBED PREPARATION DIFFICULT AND INCREASE THE
EROSION HAZARD. IF SOILS BECOME COMPACTED DURING GRADING, LOOSEN THEM TO A
DEPTH OF 6-8 INCHES USING A RIPPER, HARROW OR CHISEL PLOW.
3. TILL OR DISC THE PREPARED AREAS TO BE SEEDED TO A MINIMUM DEPTH OF FOUR (4)
INCHES. REMOVE ALL STONES LARGER THAN THREE (3) INCHES ON ANY SIDE, STICKS,
ROOTS, AND OTHER EXTRANEOUS MATERIALS AT THE SURFACE DURING THE BED
PREPARATION.
4. RECOMPACT THE AREA USING A CULTIPACKER ROLLER. THE FINISHED GRADE SHALL BE A
SMOOTH, EVEN SOIL SURFACE WITH A LOOSE, UNIFORMLY FINE TEXTURE. ALL RIDGES AND
DEPRESSIONS SHALL BE REMOVED AND FILLED TO PROVIDE THE APPROVED SURFACE
DRAINAGE. SEEDING OF GRADED AREAS IS TO BE DONE IMMEDIATELY AFTER FINISHED
GRADES ARE OBTAINED AND SEEDBED PREPARATION IS COMPLETED
5. REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, REFERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION CONTROL DAMAGE.
TEMPORARY SEEDING:
LIME: BASED ON SOIL TEST OR 1 TO 1.5 TONS/ACRE ON COARSE TEXTURED SOILS OR 2-3 TONS ON
FINE -TEXTURED SOILS. APPLY LIMESTONE UNIFORMLY AND INCORPORATE INTO THE TOP 4-6
INCHES OF SOIL, SOILS WITH A PH OF 6 OR HIGHER NEED NOT BE LIMED.
FERTILIZER: BASED ON SOIL TESTS. APPLY 10-10-10 GRADE FERTILIZER AT 700-1000 LBS/ACRE AND
INCORPORATE INTO THE TOP 4-6 INCHES OF SOIL. IF A HYDRAULIC SEEDER IS USED, DO NOT MIX
SEED AND FERTILIZER MORE THAN 30 MINUTES BEFORE APPLICATION.
MULCH: MULCH SHALL BE CLEAN STRAW AT 4000LBS/ACRE STRAW. ANCHORED WITH TACKING
AGENT APPROVED BY CONTRACTOR. APPROVED METHODS ARE ASPHALT, NETTING, OR A MULCH
ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS AN ANCHORING
TOOL.
LATE WINTER AND EARLY SPRING DATES: SEED TYPES: SEEDING
RATE:
MOUNTAINS (> 2500 FT) FEB 15-MAY 15 RYE GRAIN 120 LBS/AC
MOUNTAINS (< 2500 FT) FEB 1-MAY 1 ANNUAL LESPEDEZA 50 LBSIAC
PIEDMONT JAN 1 -MAY 1
COASTAL PLAIN DEC 1-APR 15
SUMMER DATES: SEED TYPES: SEEDING
RATE:
MOUNTAINS MAY 15-AUG 15 GERMAN MILLET 40 LBSIAC
PIEDMONT MAY 1-AUG 15
COASTAL PLAIN APR 15-AUG 15
FALL DATES: SEED TYPES: SEEDING
RATE:
MOUNTAINS AUG 15 - DEC 15 RYE (GRAIN) 120 LBSIAC
PIEDMONT AUG 15 - DEC 30
COASTAL PLAIN AUG 15 - DEC 30
MAINTENANCE
14-FT(MIN)
6-IN MIN 1
2.0% 2.0%
NCDOT ABC STONE
TENCATE MIRAFI HP370
OR APPROVED EQUAL
NOTES-
1 . GRUBBING AND STRIPPING OF TOPSOIL IS NOT REQUIRED.
2. PLACE GEOTEXTILE AS SEPARATION LAYER BETWEEN NCDOT ABC STONE AND SOIL
SUB -GRADE"
3. PLACE AND COMPACT NCDOT ABC STONE AND MAINTAIN THROUGHOUT CLEARING
OPERATIONS.
ACCESS ROAD SECTION (TYPICAL;
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MAINTENANCE:
1, SEED AND MULCH DIVERSION BERM IMMEDIATELY AFTER CONSTRUCTION.
2. INSPECT DIVERSION BERM AND OUTLETS ONCE A WEEK AND AFTER EVERY RAINFALL. REPAIR AS NEEDED.
3. WHEN THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE BERM TO BLEND WITH THE
NATURAL GROUND LEVEL AND APPROPRIATELY STABILIZE IT.
COMPACTED EARTH
BERM
EXISTING GRADE
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SLOPE
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NOTE:
2' MIN. DIVERSION BERM TO BE
USED WITHIN THE LAKE TO
DIRECT BASEFLOW FROM
CREEKS AS NECESSARY.
4 DIVERSION BERM
NTS
EXISTING GRADE
GROUND STABILIZATION TIMELINE REQUIREMENTS
SITE AREA DESCRIPTION
STABILIZATION
STABILIZATION TIME FRAME EXCEPTIONS
TIME FRAME
PERIMETER DIKES, SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY WATER (HQW) ZONES
7 DAYS
NONE
SLOPES STEEPER THAN 11
7 DAYS
IF SLOPES ARE 10-FT OR LESS IN LENGTH AND ARE NOT STEEPER THAN 2:1,
14 DAYS IS ALLOWED.
SLOPES 3:1 OR FLATTER
14 DAYS
7-DAYS FOR SLOPES GREATER THAN 50 FEET IN LENGTH
ALL OTHER AREAS WITH SLOPES
14 DAYS
NONE (EXCEPT FOR PERIMETERS AND HQW ZONES)
FLATTER THAN 4:1
. 4
THIS CHART WAS INTERPRETED FROM STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND
NATURAL RESOURCES DIVISION OF WATER QUALITY GENERAL PERMIT -NCG 010000. PERSON(S) RESPONSIBLE
FOR EROSION CONTROL WILL REFER TO GENERAL PERMIT- NCG 01000.
RESEED AND MULCH AREAS WHERE SEEDLING EMERGENCE IS POOR, OR WHERE EROSION
OCCURS, AS SOON AS POSSIBLE" DO NOT MOW. PROTECT FROM TRAFFIC AS MUCH AS POSSIBLE_ +a°
UPPER PIEDMONT
PERMANENT SEEDING:
PREPARATION FOR PRIMARYIPERMANENT STABILIZATION SHALL NOT BEGIN UNTIL ALL
CONSTRUCTION AND UTILITY WORK WITHIN THE PREPARATION AREA IS COMPLETE.
NORTH CAROLINA DEPARTMENT OF AGRICULTURE SOILS TEST (OR EQUAL SEE ENGINEER)
SHALL BE OBTAINED FOR ALL AREAS TO BE SEEDED, SPRIGGED, SODDED OR PLANTED.
TILL OR DISC THE PREPARED AREAS TO BE SEEDED TO A MINIMUM DEPTH OF 4 INCHES.
REMOVE ALL STONES LARGER THAN THREE INCHES ON ANY SIDE, STICKS, ROOTS AND
OTHER EXTRANEOUS MATERIALS THAT SURFACE. IF NOT INCORPORATED DURING THE SOIL
PREPARATION PROCESS, ADD pH MODIFIER AND FERITLIZERS AT THE RATE SPECIF
LIME: BASED ON SOIL TEST OR 1 TO 1.5 TONS/ACRE ON COARSE TEXTURED SOILS OR 2-3
TONS ON FINE -TEXTURED SOILS. APPLY LIMESTONE UNIFORMLY AND INCORPORATE INTO
THE TOP 4-6 INCHES OF SOIL. SOILS WITH A pH OF 6 OR HIGHER NEED NOT BE LIMED.
FERTILIZER- BASED ON SOIL TESTS. APPLY 10-10-10 GRADE FERTILIZER AT 700-1000
LBSIACRE AND INCORPORATE INTO THE TOP 4-6 INCHES OF SOIL. IF A HYDRAULIC SEEDER
IS USED, DO NOT MIX SEED AND FERTILIZER MORE THAN 30 MINUTES BEFORE APPLICATION.
SEEDING MIXTURE:
SEED TYPES: SEEDING RATES:
TALL FESCUE 100 LBSIAC
RYE GRAIN 40 LBSIAC
MULCH AND MATTING:
TYPE AND RATE OF MULCH: CLEAN STRAW AT 4000 LBSIACRE STRAW.
METHOD OF ANCHORING:
ANCHORED WITH TACKING AGENT APPROVED BY CONTRACTOR. APPROVED METHODS
ARE ASPHALT, NETTING, OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET
NEARLY STRAIGHT CAN BE USED AS AN ANCHORING TOOL.
SEEDING REQUIREMENTS
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SOIL CLASSIFICATIONS
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Scale: 1:3,600
N SEDIMENT SAMPLING
Schnabe! UPPER PIEDMONT LAKE, HIGH POINT SOIL MAP
N G I N E E R N G GUILFORD COUNTY, NORTH CAROLINA
PROJECT NO. 19C21002.00 FIGURE 1
3 N RCS SOILS MAP
AS SHOWN
O Schnabel Engineering, 2019 All Rights Reserved
PROJECT EXTENTS TOTAL AREA 2.28 AC
SUMMARY OF DISTURBED AREAS
AREA
AREA (AC)
CLEARING & GRUBBING
0.10
DREDGING AREAS
1.03
ACCESS ROADS
0.33
TOTAL
1.46
NOTIFICATION OF LAND RESOURCES SEDIMENT
AND EROSION CONTROL SELF -INSPECTION PROGRAM:
THE SEDIMENTATION POLLUTION CONTROL ACT WAS AMENDED IN 2006 TO REQUIRE THAT PERSONS RESPONSIBLE FOR
LAND -DISTURBING ACTIVITIES INSPECT A PROJECT AFTER EACH PHASE OF THE PROJECT TO MAKE SURE THAT THE
APPROVED EROSION AND SEDIMENTATION CONTROL PLAN IS BEING FOLLOWED. RULES DETAILING THE DOCUMENTATION
OF THESE INSPECTIONS TOOK EFFECT OCTOBER 1, 2010. THE SELF -INSPECTION PROGRAM IS SEPARATE FROM THE
WEEKLY SELF -MONITORING PROGRAM OF THE NPDES STORMWATER PERMIT FOR CONSTRUCTION ACTIVITIES. THE
FOCUS OF THE SELF -INSPECTION REPORT IS THE INSTALLATION AND MAINTENANCE OF EROSION AND SEDIMENTATION
CONTROL MEASURES ACCORDING TO THE APPROVED PLAN. THE CONTRACTOR SHALL CONDUCT THE INSPECTIONS
AFTER EACH PHASE OF THE PROJECT, AND THE CONTRACTOR SHALL CONTINUE TO CONDUCT THE INSPECTIONS UNTIL
PERMANENT GROUND COVER IS ESTABLISHED IN ACCORDANCE WITH NCGS 113A-54.1 AND 15A NCAC 4B.0131. THE
SELF -INSPECTION REPORT FORM IS AVAILABLE FROM
HTTPS-.//DEQ.NC.GOV/ABOUT/DIVISIONS/ENERGY-•MINERAL-LAND-RESOURCES/EROSION-SEDIMENT-CONTROL/FORMS
IF YOU HAVE QUESTIONS OR CANNOT ACCESS THE FORM, PLEASE CONTACT THIS OFFICE AT [phone]
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