20201974 Ver 1_ePCN Application_20210118

DWR
Division of Water Resources
Pre -Construction Notification (PCN) Form
October 26, 2020 Ver 3.3
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
20201974
Is a payment required for this project?*
r No payment required
r Fee received
r Fee needed - send electronic notification
Reviewing Office *
Central Office - [phone]
Information for Initial Review
Version#*
1
What amout is owed?*
r $240.00
r $570.00
Select Project Reviewer*
Rick Trone:eads\rvtrone
1a. Name of project:
SEVEN MILE CREEK RESTORATION USDA NRCS WATERSHED PROTECTION PROGRAM
1a. Who is the Primary Contact?*
Simon Gregg
1b. Primary Contact Email:* 1c. Primary Contact Phone:*
[e-mail] [phone]
Date Submitted
1/18/2021
Nearest Body of Water
SEVEN MILE CREEK
Basin
Neuse
Water Classification
WS-N;NSW
Site Coordinates
Latitude: Longitude:
36.072539-78.963924
Pre -Filing Meeting Information
ID# Version
20201974 1
Pre -fling Meeting or Request Date*
12/17/2020
Attach documentation of Pre -Filing Meeting Request here:*
20201974 Ver 1_Meeting Request Review 20201217.pdf 61.12MB
A. Processing Information C^U
County (or Counties) where the project is located:
Durham

Is this a NCDMS Project
r Yes r No
Is this project a public transportation project?*
r Yes r No
la. Type(s) of approval sought from the Corps:
* Section 404 Permit (wetlands, streams and waters, Clean Water Act)
r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
r Yes
r No
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:
13 - Bank Stabilization
NWP Numbers (for multiple NWPS):
NWP 37 — EMERGENCY WATERSHED PROTECTION AND REHABILITATION
1d. Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - Regular r 401 Water Quality Certification - E)press
r Non-404 Jurisdictional General Permit r Riparian Buffer Authorization
r Individual Permit
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR401 Certification: r Yes r No
For the record onlyfor Corps Permit: r Yes r No
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?
r Owner W 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:
ALLEN & MICHELE YEATTS, PETER J. & BETTY C. DUTY; AMANDA L. & JUSTIN D. LEITZEL
2b. Deed book and page no.:
007887, 000274; 001183, 000848; 006538, 000673
2c. Responsible party:
PIEDMONT CONSERVATION COUNCIL
2d.Address

Street Address
201 E. MAIN STREET, 5TH FLOOR
Address Une 2
City
DURHAM
Postal / Zip Qde
27701
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
3. Applicant Information (if different from owner)
3a. Name:
ELIZABETH ZANDER
3b. Business Name:
PIEDMONT CONSERVATION COUNCIL
3c.Address
Street Address
201 E. MAIN STREET, 5TH FLOOR
Address Line 2
City
DURHAM
Postal / Zip Code
27701
3d. Telephone Number:
[phone]
3f. Email Address:*
[e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
SIMON GREGG
4b. Business Name:
KRIS BASS ENGINEERING
4c.Address
Street Address
7334 CHAPEL HILL RD
Address Line 2
QY
RALEIGH
Postal / Zip Code
27606
4d. Telephone Number:
[phone]
0. Email Address:*
[e-mail]
Agent Authorization Letter*
Agent Authorization Form Duty.pdf
Agent Authorization Form Leitzel.pdf
Agent Authorization Farm Yeatts.pdf
C. Project Information and Prior Project History
1. Project Information
1b. Subdivision name:
(if appropriate)
1c. Nearest municipality/ town:
DURHAM
State / Province / Region
NORTH CAROLINA
Country
US
2f. Fax Number:
Slate / Province / Region
NORTH CAROLINA
Country
US
3e. Fax Number:
State / Province / Region
NORTH CAROLINA
Country
US
4e. Fax Number:
33.44KB
389.5KB
296.63KB

2. Project Identification
2a. Property Identification Number:
0814-03-05-7164, 0814-03-04-6943, 0814-
03-04-9864
2c. Project Address
Street Address
408 NOVEMBER DR
Address tine 2
city
DURHAM
Postal / Zip Code
27712
3. Surface Waters
3a. Name of the nearest body of water to proposed project:"
SEVEN MILE CREEK
3b. Water Resources Classification of nearest receiving water:*
WS-IV; NSW
3c. What river basin(s) is your project located in?*
Neuse
3d. Please provide the 12-digit HUC in which the project is located.
030202010304
4. Project Description and History
2b. Property size:
0.9
Slate / Frmnce / tagim
NORTH CAROLINA
Country
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:*
THIS PROJECT INCLUDES RESTORATION AND STABILIZATION OF APPROXIMATELY 350LF OF SEVEN MILE CREEK WHICH WAS BADLY DAMAGED BY EROSION AND FLOODING
DURING HURRICANE FLORENCE. THE PROJECT IS LOCATED IN DURHAM, NORTH CAROLINA (36.072519,-78.963940). THE PIEDMONT CONSERVATION COUNCIL HAS SECURED
GRANT FUNDING THROUGH THE UNITED STATES DEPARTMENT OF AGRICULTURE, NATURAL RESOURCES CONSERVATION SERVICE, EMERGENCY WATERSHED
PROTECTION PROGRAM FOR DESIGN AND CONSTRUCTION OF THIS RESTORATION. THE RESTORATION INVOLVES THE CONSTRUCTION OF BOULDER REVETMENT WALLS
AND VEGETATED GEOLIFTS, REINFORCEMENT OF EXISTING RIFFLE STRUCTURES, BANK SLOPING, AND INSTALLATION OF STONE, WOOD, COIR LOGS, AND EROSION
CONTROL MATTING. ALL WORK SHALL BE SUBJECT TO THE DIRECTION AND INSPECTION OF THE PROJECT ENGINEER.
THIS PROJECT IS LOCATED IN THE ENO RIVER WATERSHED AND MOST OF THE PROJECT IS IN THE SEVEN MILE CREEK FEMA REGULATED FLOODPLAIN.
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)
Location Sevenmile.pdf
279.57KB
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)
Soils Sevenmile.pdf 2.42MB
4f. List the total estimated acreage of all existing wetlands on the property:
4g. List the total estimated linear feet of all existing streams on the property:
350
4h. Explain the purpose of the proposed project:*
The proposed project is to stabilize and restore 350 LF of Seven Mile Creek which were badly damage in Hurricane Florence. Hurricane Florence produce high flows which overtopped
a road and created excessive sear stresses and extreme streambank erosion when flows reentered the stream channel. This project begins downstream of the Continental Dr road
crossing and is proposing the rebuild the streambank using boulders, vegetative geolifts, and bank sloping. Vegetation, live stakes, and erosion control matting Will be used to help
stabilize the rebuilt banks.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
The project will mainly take place within the active channel. Construction access and some materials staging Will occur in residential yards. Some smaller trees (<8" DBH) and vegetation
will be required to be removed to allow bank sloping and keying in of rebuilt banks into the eAsting bank material. A 4FT boulder wall is proposed along a portion of the reach where the
banks are most unstable and the largest shear stresses will occur. Above the boulder wall, several vegetated geolifts are proposed. Above the geolifts the banks will be sloped at 2A
(H:V) or less to tie into the eAsting banks and upland areas. There are two ditch inflow areas at the Continental Dr culvert endwall. These areas were very badly damage by overtopping
flows reentering the channel downstream of the roadway. These areas are proposed to the armored with boulders and riprap to create cascade -pools to safely convey flows down to the
stream channel.
A large majority of stone and bed substrate was washed downstream during Hurricane Florence and this material and down vegetation have created a large debris dam. It its proposed
to clear the debris dam and reestablish flow in the eAsting active channels. Some stone materials are proposed to be used to reconstruct the upstream riffles and move the channel
thalweg to the center of the channel and away from the toe of the banks.
Non -woven geotextiles, erosion control fabrics, and native vegetation are proposed to help prevent erosion and stabilize the newly constructed banks. The project will be constructed
using low pressure track equipment including track hoe and possibly a track truck for assistance in material moving around the project reach. A pump around is proposed to allow
working in the dry as much as possible.
4j. Please upload project drawings for the proposed project.

001-SEVEN MILE-COVER_signed.pdf
2.68MB
002-SEVEN MILE-NOTES_signed.pdf
171.22KB
003-SEVEN MILE-EXISITING.pdf
665.35KB
004-SEVEN MILE-IMPACTS_signed.pdf
3.95MB
005-SEVEN MILE-DEMO_signed.pdf
4.09MB
006-SEVEN MILE-SCHEMATIC_signed.pdf
874.62KB
007-SEVEN MILE-GRADING_signed.pdf
601.26KB
008-SEVEN MILE-PROFILE_signed.pdf
496.31 KB
009-SEVEN MILE-SECTIONS_signed.pdf
194.99KB
010-SEVEN MILE-PLANTING_signed.pdf
4.06MB
011-SEVEN MILE -DETAILS 1_signed.pdf
413.25KB
012-SEVEN MILE -DETAILS 2_signed.pdf
497.03KB
013-SEVEN MILE -DETAILS 3_signed.pdf
206.44KB
014-SEVEN MILE-NCGO1_signed.pdf
5.01 MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
r Yes r No
Comments:
No official field delineations for wetlands have been made because the project is contained within
the eAsting active channel top of banks.
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):
Agency/Consultant Company:
Other:
5d1. Jurisdictional determination upload
r Unknown
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?
D. Proposed Impacts Inventory
1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
r Wetlands W Streams -tributaries
17 Open Waters F Pond Construction
3. Stream Impacts
r Buffers
3a. Reason for impact (?) 3b.lmpact type * 3c. Type of impact* 3d. S. name * 3e. Stream Type * 3f. Type of 3g. S. width * 3h. Impact
(?) Jurisdiction* length*
STREAM BANK Tem orar Bank Stabilization SEVEN MILE CREEK Perennial Both 30 r(I10-ear
1 P Y
STABILIZATION Average (feet) feet)
31. Total jurisdictional ditch impact in square feet:
0
31. Total permanent stream impacts:
0
31. Total stream and ditch impacts:
350
3j. Comments:
3i. Total temporary stream impacts:
350

E. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
The most unstable streambanks have been prioritized for stabilization and restoration and the project has excluded impact beyond this area.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
The project area has been minimized as much as possible to reduce unnecessary impacts to areas outside of those where stabilization and
construction will occur. The use of low ground pressure vehicles is proposed to minimize impacts of construction equipment, and a pump around is
proposed to allow working in the dry as much as possible.
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:
This is a bank stabilization and stream restoration project, there are no permeant impacts associated with this project.
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
If no, explain why:
There are no impervious surfaces proposed with this project.
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:
There are no impervious surfaces proposed with this project.
G. Supplementary Information
1. Environmental Documentation
1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
r Yes r No
u
u
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 (NEPAUSEPA)?*
r Yes r No
Comments:*
This is an emergence watershed protection program covered under the NRCS Programmatic Environmental Impact Statement. See attached
documentation.
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 2H .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.
This project is a one time grant funded bank stabilization and stream restoration project.
4. Sewage Disposal (DWR Requirement)

4a. Is sewage disposal required by DWR forth is project?*
r Yes r Nor WA
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
5d. Is another Federal agency involved?*
r Yes r No
What Federal Agency is involved?
USDA NRCS
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
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
r Unknown
51. 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?
hftps://fws.maps.arcgis.con-home/vvebmap/viewer.html?webmap=9d8de5e265ad4fe09893cf75b8dbfb77
Consultation Documentation Upload
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?*
https://www. fish eries. noaa. gov/resou rce/ma p/esse ntia I -fish -habitat -ma ppe r
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?*
https://www. ncd cr.gov/about/h istory/d ivision-historical-resou rces/gis-ma ps-and-data
7c. Historic or Prehistoric Information Upload
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:
A FEMA No -Rise study will be completed.
8c. What source(s) did you use to make the floodplain determination?*
hftps://fris.nc.gov/fris/Home.aspx
Miscellaneous U
Comments
See attached USDA NRCS Environmental Evaluation Worksheet
Miscellaneous attachments not previously requested.
DSR 37-01-18-5038-158 EWP NRCS-CPA-52_Signed RFOjbr.pdf
248.11 KB
Signature U

17 By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request Within the applicable reasonable period of time.
• 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:
Simon B. Gregg
Signature
Date
1/18/2021

AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. — PLAN NO. __r` PARCEL ID: 0814-03-04-694, —
STREET ADDRESS: 301 Continental Dr Durham, NC 27712
Please print: Peter J Duty
Property Owner:
Property Owner: Betty C Duty
The undersigned, registered property owners of the above noted property, do hereby authorize
Kris Bass_ Kris Bass Engineering
(Contractor / Agent) —" —' of �_—
(Name of consulting firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of
this permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
Telephone:414
f
We hereby certify the above information submitted in this application is true and accurate to the
best of our knowledge.
Authorized Signature `
Date:
Authorized Sig ature
Date: ___ 2.-� Z-- d - A 0

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AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. PLAN N0. PARCEL ID: 0814-03-05-7164
STREET ADDRESS: 233 Continental Dr Durham, NC 27712
Please print:
Property Owner:
Property Owner:
Allen Yeatts
Michele Yeatts
The undersigned, registered property owners of the above noted property, do hereby authorize
Kris Bass
(Contractor / Agent)
of Kris Bass Engineering
(Name of consulting firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of
this permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
Telephone: / / �- 9 / 9- 2a'2 a
We hereby certify the above information submitted in this application is true and accurate to the
best of our knowledge.
Authorized Signa re
Date: - 17- Z Z a —
Authorized Signature
Date: __ /� L20 --_

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PROJECT NARRATIVE EROSION CONTROL NOTES:
LEGEND
THIS PROJECT INCLUDES RESTORATION AND STABILIZATION OF APPROXIMATELY 350LF OF SEVEN MILE CREEK WHICH 1. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC) MUST BE
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WAS BADLY DAMAGED BY EROSION AND FLOODING DURING HURRICANE FLORENCE. THE PROJECT IS LOCATED IN DURHAM, OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR.
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EXISTING CONTOURS
NORTH CAROLINA (36.072519,-78.963940). THE PIEDMONT CONSERVATION COUNCIL HAS SECURED GRANT FUNDING
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THROUGH THE UNITED STATES DEPARTMENT OF AGRICULTURE, NATURAL RESOURCES CONSERVATION SERVICE, 2. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT THE E&SC PLAN. PROPOSED CONTOURS
EMERGENCY WATERSHED PROTECTION PROGRAM FOR DESIGN AND CONSTRUCTION OF THIS RESTORATION. THE AFTER DEMLR INFORMS THE PERMITTEE OF THE PROJECT CLOSE OUT, VIA INSPECTION REPORT, THE PERMITTEE
RESTORATION INVOLVES THE CONSTRUCTION OF BOULDER REVETMENT WALLS AND VEGETATED GEOLIFTS, SHALL VISIT DEQ.NC.GOV/NCG01 TO SUBMIT AN ELECTRONIC NOTICE OF TERMINATION (E-NOT). A $100 ANNUAL LIMITS OF DISTURBANCE you you
REINFORCEMENT OF EXISTING RIFFLE STRUCTURES, BANK SLOPING, AND INSTALLATION OF STONE, WOOD, COIR LOGS, GENERAL PERMIT FEE WILL BE CHARGED UNTIL THE E-NOT HAS BEEN FILLED OUT. o 0
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AND EROSION CONTROL MATTING. ALL WORK SHALL BE SUBJECT TO THE DIRECTION AND INSPECTION OF THE PROJECT REINFORCED RIFFLE o 00oo �� �oo oo��
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ENGINEER. 3. CONTACT THE DEMLR WINSTON SALEM REGIONAL OFFICE AT LEAST 48 HOURS PRIOR TO COMMENCING THE
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LAND -DISTURBING ACTIVITY. THE CONTACT NUMBER IS [phone]
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THIS PROJECT IS LOCATED IN THE ENO RIVER WATERSHED AND MOST OF THE PROJECT IS IN THE SEVEN MILE CREEK BOULDER WALL OR SILL
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FEMA REGULATED FLOODPLAIN. 4. THE CONTRACTOR SHALL CONDUCT SELF -INSPECTIONS OF THE EROSION AND SEDIMENTATION CONTROL
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MEASURES AND COMPETE THE COMBINED SELF -INSPECTION FORM FOUND ON THE DEMLR WEBSITE. TWELVE
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PROJECT NOTES: MONTHS OF COMPLETE INSPECTION FORMS SHALL BE KEPT ON -SITE AND AVAILABLE FOR INSPECTION AT ALL VEGETATED GEOLIFTS
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TIMES. IT IS RECOMMENDED A COPY BE KEPT IN A PERMITS BOX.
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THE LOCATION AND ALIGNMENT OF ALL IMPROVEMENTS SHOWN ARE APPROXIMATE. THE FINAL LOCATION AND ALIGNMENT SHALL BE
DETERMINED DURING CONSTRUCTION USING BEST PROFESSIONAL JUDGMENT AND APPROVED BY THE PROJECT ENGINEER. 5. ALL EROSION CONTROL NEAR ACTIVE CONSTRUCTION MUST BE SET-UP AND INSPECTED PRIOR TO BANK SLOPING
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COMMENCEMENT OF GRADING
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MATERIALS LISTS ARE PROVIDED AS AN APPROXIMATION ONLY. CONTRACTOR SHALL INDEPENDENTLY VERIFY THE NUMBER AND AMOUNT OPERATIONS. UPLAND GRADING
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OF STONE BACKFILL OR OTHER ITEMS NECESSARY TO PROPERLY COMPLETE THE JOB.
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6. ALL SLOPES SHALL BE SEEDED AND STABILIZED WITH A DENSE COVERAGE OF GRASS. ANY EXPOSED OR
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THE LATEST VERSION OF THE FOLLOWING STANDARDS APPLIES TO THESE SPECIFICATIONS. BARE SLOPES SHALL BE RE -SEEDED OR PROTECTED WITH EROSION CONTROL MATTING. EROSION CONTROL IMPACT AREA
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A.NCDOT "STANDARD SPECIFICATIONS FOR ROADS AND STRUCTURES" MATTING SHALL MEET THE REQUIREMENTS OF ROLANKA COIR MAT 70 AND INCLUDE LESS THAN 40% OPENINGS.
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B. NCDEQ/DEMLR "EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL"
7. ALL BACKFILL SHALL BE SUITABLE FOR PLANT GROWTH AND GENERALLY FREE OF DEBRIS OR OTHER CLEAR & GRUB
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THE CONTRACTOR SHALL CALL THE "CALL BEFORE YOU DIG" TOLL FREE NUMBER TO MAKE SURE THAT ALL UTILITIES ARE LOCATED AND MATERIAL GREATER THAN 2 INCHES IN SIZE.
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MARKED. ANY DAMAGE TO EXISTING UTILITIES IS THE RESPONSIBILITY OF THE CONTRACTOR.
8. ALL ELEVATIONS AND CHANNEL DIMENSIONS SHALL BE MET WITHIN A TOLERANCE OF 0.1'co
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ANY DAMAGE RESULTING FROM ACTIONS OF THE CONTRACTOR TO STRUCTURES OR GROUNDS ON SITE WILL BE REPAIRED OR REPLACED
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AT THE EXPENSE OF THE CONTRACTOR, TO A QUALITY MEETING OR EXCEEDING THEIR PREVIOUS STANDARDS. 9. STABILIZATION MEASURES SHALL BE IMPLEMENTED AS SOON AS POSSIBLE FOLLOWING COMPLETED AREAS
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OF CONSTRUCTION. SPECIFIC SEEDING REQUIREMENTS ARE PROVIDED IN THE PLANTING PLAN.
THE CONTRACTOR IS TO ENSURE PUBLIC SAFETY DURING ALL PHASES OF CONSTRUCTION.
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10. PROVIDE TEMPORARY OR PERMANENT GROUNDCOVER ON ALL EXPOSED AREAS WITHIN 7 CALENDAR DAYS
THE CONTRACTOR IS RESPONSIBLE FOR CLEARING AND DISPOSING OF ANY MAN-MADE MATERIALS OR OTHER DEBRIS THAT LIE WITHIN THE FOLLOWING COMPLETION OF ANY PHASE OF GRADING. PROVIDE A PERMANENT GROUNDCOVER FOR ALL
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CONSTRUCTION LIMITS, AS REQUESTED AND APPROVED BY THE PROJECT ENGINEER. DISTURBED AREAS WITHIN 14 WORKING DAYS OR WITHIN 90 CALENDAR DAYS (WHICHEVER IS SHORTER)
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FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT.
THE CONTRACTOR IS RESPONSIBLE FOR ENSURING THAT THE STREETS IN FRONT OF THE CONSTRUCTION SITE WILL BE KEPT CLEAN AT ALL
TIMES. IF NEEDED TO ACCOMPLISH THIS TASK A WASH STATION MAY BE REQUIRED. 11. ALL SEDIMENT AND EROSION CONTROL DEVICES SHALL BE INSPECTED EVERY SEVEN (7) DAYS OR AFTER
EACH RAINFALL OCCURRENCE THAT EXCEEDS ONE-HALF (1/2) INCH. DAMAGED OR INEFFECTIVE DEVICES SHALL BE
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REPAIRED OR REPLACED, AS NECESSARY.
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STREAM CONSTRUCTION NOTES:
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1. ALL PROPOSED CHANNELS AND TEMPORARY AND PERMANENT CROSSINGS SHALL BE CONSTRUCTED IN A DRY CONDITION VIA OFFLINE
12. ALL EROSION CONTROL DEVICES SHALL BE PROPERLY MAINTAINED DURING ALL PHASES OF THE
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CONSTRUCTION WHERE POSSIBLE. DIVERSIONS, COFFER DAMS, AND PUMP AROUND OPERATIONS SHOULD BE UTILIZED TO FACILITATE
CONSTRUCTION UNTIL THE COMPLETION OF ALL CONSTRUCTION ACTIVITIES AND ALL DISTURBED AREAS HAVE
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DRY CONSTRUCTION WHERE POSSIBLE.
BEEN STABILIZED. ADDITIONAL CONTROL DEVICES MAY BE REQUIRED DURING CONSTRUCTION IN ORDER TO
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CONTROL EROSION AND/OR OFF -SITE SEDIMENTATION. ALL TEMPORARY CONTROL DEVICES SHALL BE REMOVED
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2. ALL IMPERVIOUS DIKES AND PUMPING APPARATUS SHALL BE REMOVED FROM THE STREAM AT THE COMPLETION OF EACH WEIR TO
ONCE CONSTRUCTION IS COMPLETE AND THE SITE IS STABILIZED.
RESTORE NORMAL FLOW BACK TO THE CHANNEL UNLESS OTHERWISE APPROVED BY THE ENGINEER. WITH APPROVAL, A PUMP AROUND
MAY BE ALLOWED TO RUN CONTINUOUSLY IF THERE IS NO FORECAST FOR RAIN OVERNIGHT, AND/OR THE PUMP APPARATUS IS
13. THE CONTRACTOR MUST TAKE NECESSARY ACTION TO MINIMIZE THE TRACKING OF MUD TO OFF SITE AREAS.
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MAINTAINED AND MONITORED CONTINUOUSLY.
THE CONTRACTOR SHALL DAILY REMOVE MUD/SOIL FROM PAVEMENT, AS MAY BE REQUIRED.
3. CONSTRUCT UPSTREAM PORTION OF THE WORK FIRST, WORKING IN AN UPSTREAM TO DOWNSTREAM DIRECTION, UNLESS OTHERWISE 14. THE CONTRACTOR SHALL ACCOMPLISH ALL STREAMBANK EXCAVATION FROM OUTSIDE THE ACTIVE
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APPROVED PROJECT ENGINEER. CHANNEL WHENEVER POSSIBLE. ALL DISTURBED STREAMBANK MUST BE STABILIZED WITH SEEDING, MULCH AND
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EROSION CONTROL MATTING BY THE END OF EACH WORKDAY.
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4. REMOVE AND STOCKPILE TOPSOIL WITHIN AREAS THAT ARE TO BE CUT 9" OR MORE BELOW EXISTING GRADE. STOCKPILED TOPSOIL IS TO
BE REPLACED ON TERRACE OR STREAMBANK SLOPES DURING FINAL GRADING. PLANTING NOTES: MATERIAL ESTIMATES:
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1. ALL INVASIVE SPECIES TO BE REMOVED FROM ALL AREAS BEFORE PROCEEDING WITH PLANTINGS. PROJECT AREA: 0.9 AC
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5. INSTALL STRUCTURES AS SHOWN ON PLANS AND DETAILS. PRIOR TO FINE GRADING, OBTAIN APPROVAL BY PROJECT ENGINEER ON 2. ALL PLANTS SHALL BE INSPECTED AND APPROVED BY THE PROJECT ENGINEER PRIOR TO INSTALLATION. PLANTING NET FILL: 700 CY
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INSTALLATION OF ALL STRUCTURES. LOCATIONS ARE APPROXIMATE AND MUST BE APPROVED BY THE PROJECT ENGINEER PRIOR TO INSTALLATION. BOULDERS (3'x4'x2' OR LARGER). 300 EA
3. AREAS TO BE PLANTED ARE SHOWN ON THE PLAN. IF UTILITIES ARE ENCOUNTERED, PLANTS MAY BE REPOSITIONED #57 STONE BACKFILL OR SIMILAR: 95 TN
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6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS. THIS MATERIAL SHALL BE UTILIZED IN THE TOP SLIGHTLY TO AVOID IMPACT. EQUAL PARTS CLASS A, B, & 1: 155 TN
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LAYERS OF THE REINFORCED RIFFLES. IN AREAS WHERE THERE IS NOT ENOUGH NATIVE SUBSTRATE TO PLACE AN MINIMUM 6" LAYER 4. PLANTS AND PLANTING SHALL MEET THE STANDARDS OF ANSI Z60.1 AND ANSI A 300 AND BE COMPLETED ACCORDING TEMPORARY SEEDING AREA: 0.8 AC
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ALONG PROPOSED SHALLOW/RIFFLE SECTIONS, SUPPLEMENT THE NATIVE SUBSTRATE WITH A 50 50 MIX OF #57 AND #4 STONE. TO PROJECT SPECIFICATIONS. PERMANENT SEEDING AREA: 0.3 AC
5. ALL PLANTING SHALL BE DONE IN A SUITABLE SEASONAL TIMEFRAME FOR EACH SPECIES: RIPARIAN SEEDING AREA: 0.3 AC
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7. UPON COMPLETION OF FINE GRADING, INSTALL STREAM BANK STABILIZATION INCLUDING, EROSION CONTROL MATTING OR SOD MATS 5.1. WETLAND SEEDING, PLUGS, AND SHRUBS SHALL BE INSTALLED IN THE SPRING PRIOR TO JUNE 1 OR IN THE FALL
ALONG CHANNEL BANKS. PRIOR TO OCTOBER 31.
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5.2. TREES SHALL BE PLANTED IN THEIR DORMANT SEASON AND PRIOR TO MARCH 1.
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6. TREES SHALL BE OF SUFFICIENT SIZE AND HEALTH TO BE STABLE WITHOUT STAKING. STAKING MAY BE ALLOWED WITH
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APPROVAL AND INSPECTION OF THE PROJECT ENGINEER.
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SEEDING NOTES: 7. PERMANENT SEEDING SHALL NOT CONTAIN ANY FESCUE GRASSES. PLACE SEEDING AS SPECIFIED IN THE PLAN.
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8. A DENSE STAND OF TEMPORARY AND PERMANENT VEGETATION IS REQUIRED PRIOR TO PROJECT COMPLETION. ANY
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ALL DISTURBED AREAS SHALL BE DRESSED TO A DEPTH OF 8 INCHES. THE TOP 3 INCHES SHALL BE PULVERIZED TO PROVIDE A UNIFORM AREAS NOT ESTABLISHED MUST BE RETILLED, RESEEDED, AND PROTECTED WITH COIR MATTING.
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SEEDBED. AGRICULTURAL LIME SHALL BE APPLIED AT THE RATE OF 95 LB/1000 SQ. FT. IMMEDIATELY BEFORE PLOWING. GRASS SEED SHALL BE 9. SPREAD SEED UNIFORMLY UNDER COIR FIBER MATTING ALONG CHANNEL BANKS.
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APPLIED AT THE RATES OUTLINED IN THE FOLLOWING TABLES. 10. STABILIZE ALL EXPOSED AREAS AT STREAM BANKS WITH THE RIPARIAN SEED MIX.
11. SILKY WILLOW & SILKY DOGWOOD LIVE STAKES PLANTED ALONG OUTSIDE MEANDER BENDS AND SPACED ACCORDING
10-10-10 (FALL) / 5-10-10 (SPRING) FERTILIZER SHALL BE APPLIED TO ALL DISTURBED AREAS AT A RATE OF 2 TONS/ACRE AND MULCHING SHALL TO DETAILS.
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CONSIST OF SMALL GRAIN STRAW APPLIED AT A RATE OF 1-2 TONS/ACRE. MULCHED AREAS SHALL BE TACKED WITH ASPHALT AT A RATE OF 12. SEE TECHNICAL SPECIFICATIONS FOR ADDITIONAL INSTRUCTIONS AND REQUIREMENTS.
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435 GALLONS PER ACRE, OR OTHER APPROVED METHOD SUFFICIENT TO HOLD THE STRAW IN PLACE. 13. EROSION CONTROL MEASURES SHALL BE PROPERLY MAINTAINED UNTIL PERMANENT VEGETATION IS ESTABLISHED
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AND FINAL APPROVAL HAS BEEN ISSUED. THE CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AT THE
IF ACTIVE CONSTRUCTION CEASES, MEANING NO SUBSTANTIAL OR SIGNIFICANT PROGRESS IS MADE IN ANY AREA FOR MORE THAN 15 DAYS, END OF EACH WORKING DAY TO ENSURE MEASURES ARE FUNCTIONING PROPERLY.
ALL DISTURBED AREAS MUST BE SEEDED, MULCHED, AND TACKED UNLESS WRITTEN APPROVAL IS GRANTED BY THE STORMWATER 14. DISTURBED AREAS NOT AT FINAL GRADE SHALL BE TEMPORARILY VEGETATED WITHIN 10 WORKING DAYS.
ENGINEERING TECHNICIAN. INCIDENTAL GRADING SHALL NOT CONSTITUTE SUBSTANTIAL OR SIGNIFICANT PROGRESS IN CONSTRUCTION 15. UPON COMPLETION OF FINAL GRADING, PERMANENT VEGETATION SHALL BE ESTABLISHED FOR ALL DISTURBED
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ACTIVITY. AREAS WITHIN 10 WORKING DAYS. SEEDING SHALL BE IN ACCORDANCE WITH EROSION CONTROL PLAN.
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16. ALL DISTURBED AREAS SHALL BE PREPARED PRIOR TO PLANTING BY DISC OR SPRING -TOOTH CHISEL PLOW TO
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AS A PART OF PERMANENT SEEDING, MAINTENANCE MAY BE REQUIRED TO MINIMUM DEPTH OF 12 INCHES. MULTIPLE PASSES SHALL BE MADE ACROSS PLANTING AREAS WITH THE IMPLEMENT
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MAINTAIN VEGETATION FOR 12 MONTHS (INCLUDING MOWING AND WATERING). THIS MAINTENANCE SHALL BE CONSIDERED A PART OF AND THE FINAL PASS SHALL FOLLOW TOPOGRAPHIC CONTOURS.
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ESTABLISHING PERMANENT GROUND COVER. 17. TREATMENT/REMOVAL OF INVASIVE SPECIES, PINES AND SWEET GUMS LESS THAN 6" DBH SHALL BE PERFORMED
THROUGHOUT THE PLANTED AREA.
18. SPECIES SHALL BE DISTRIBUTED SUCH THAT 3 TO 6 PLANTS OF THE SAME SPECIES ARE GROUPED TOGETHER.
GENERAL SEEDING NOTES: 19. TEMPORARY SEED MIX SHALL BE APPLIED AT A RATE OF 150 LBS/ACRE TO ALL DISTURBED AREAS WITH SLOPES
EQUAL TO OR STEEPER THAN 3:1.
RE -SEED ALL DISTURBED AREAS AND SLOPES AS DIRECTED. PERMANENT SEEDING (SPRING/SUMMER ONLY) OF: 50LBS/ACRE TALL 20. RIPARIAN SEED MIX SHALL BE APPLIED TO ALL DISTURBED AREAS WITHIN THE FLOODPLAIN CORRIDOR AT A RATE OF
FESCUE, 5LBS/ACRE CENTIPEDE, 25 LBS/ACRE BERMUDAGRASS (HULLED) APPLY FERTILIZER (10-20-20) AT A RATE OF 500LBS/AC AND LIME 20 LBS/ACRE.
AT 4000LBS/ACRE. SPREAD STRAW MULCH ON ANY DISTURBED AREAS AT A RATE OF 1.5 TONS /ACRE. 25. PERCENT COMPOSITION OF PLANTINGS MAY VARY BASED ON SPECIES AVAILABILITY AT TIME OF PLANTING
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1. PREPARED FOR KRIS BASS ENGINEERING.
2PROPERTY
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3. THE PORTION OF THIS PROPERTY LYING ALONG SEMEN MILE CREEK IS IN ZONE O � 1, CHARLES H. SMITH, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
"AE" AND THE REGULATED FLOOD WAY PER FL000 INSURANCE RATE MAP FOR Q _ SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER MY SUPERVISION. A
L- _ BOUNDARY SURVEY WAS NOT PERFORMED AS PART OF THIS SURVEY.
DURHAM COUNTY, NORTH CAROLINA, MAP NUMBER 3720081400K EFFECTIVE
= C7 : 2: H7TNE55 MY ORIGINAL SIGNA iUR� REGISTRATION NUMBER AND SEAL.
DATE OCTOBER 19, 2018, FLOOD LIMITS SHOWN ARE FROM DURHAM COUNTY GIS : y . 9
MAPPING AND ARE APPROXIMATE. 9 .•b 3UF ,•' GSC PROJECT 20015
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A TOPOGRAPHIC SURVEY
4. HORIZONTAL CONTROL BASED ON NAD83 (2012); VERTICAL CONTROL BASED ON
a 20 4a 60 NAVD'88, AS ESTABLISHED BY GPS. CHARLES H. SMITH, NC PL5 No, L-4196 DATE OF A PORTION OF
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4072 BARRETT DRIVE
ON FIELD LOCATION OF SURFACE FEATURES AND ARE APPROXIMATE. OTHER RALEIGN, NC 27609 DURHAM COUNTY, NORTH CAROLINA
SUBSURFACE UTILITIES MAY EXIST ON THIS SITE THAT ARE NOT INCLUDED IN DATE• SCALE.- SHEET:
THIS SURVEY. PHONE [phone] s FAX [phone]
SEP. 8, 2020 1" = 20 1 OF ]
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BUDS FACING UPWARD 1. STAKES SHALL BE CUT AND INSTALLED ON THE SAME DAY.
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MINIMUM NOT USED FOR CONSTRUCTION.
9. ATTACH THE FABRIC TO EACH POST WITH THREE TIES WITH THE TOP TIE WITHIN 8" OF THE TOP OF THE FABRIC.
LIVE CUTTING 3. STAKES SHALL BE INSTALLED WITH BUDS POINTING
10. WRAP APPROXIMATELY 6 INCHES OF FABRIC AROUND THE END POSTS AND SECURE WITH 3 TIES.
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11. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID JOINTS. WHEN JOINTS ARE NECESSARY,
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4. STAKES SHALL BE INSTALLED PERPENDICULAR TO BANK.
SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST WITH 4 FEET MINIMUM OVERLAP TO THE NEXT POST.
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5. STAKES SHALL BE 0.5" - 2" INCHES IN DIAMETER AND 30" IN
LENGTH MINIMUM.
ANGLE CUT TO
TEMPORARY SILT FENCE MAINTENANCE NOTES:
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6. STAKES SHALL BE INSTALLED WITH APPROXIMATELY 3" OF
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45 DEGRESS STAKE REMAINING ABOVE GROUND.
1. INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
7. STAKE SPACING SHALL BE & ON CENTER.
2. SHOULD THE FABRIC OF THE SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
LIVE STAKE DETAIL
3. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE.
TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT.
4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING
DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
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D1 LIVE STAKE
rD_T*� TEMPORARY SILT FENCE
File No.
SD 3 NOT TO SCALE
SD4 NOT TO SCALE
Drawing:
SevenMile_.dwg
Sheet D 1

EROSION CONTROL MATTING SHALL BE
PLACED IN 12 INCH DEEP TRENCH, STAKED,
BACKFILLED AND COMPACTED
STOP OF STREAMBANK
EROSION CONTROL
MATTING TO BE EXTENDED
TO TRENCH AT TOE OF SLOPE
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THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECO-STAKE OR APPROVED EQUAL WITH THE
FOLLOWING DIMENSIONS:
LEG LENGTH
11.00 IN (27.94 CM)
HEAD WIDTH
1.25 IN (3.18 CM)
HEAD THICKNESS
0.40 IN (1.02 CM)
LEG WIDTH
0.60 IN (1.52 CM) (TAPERED TO POINT)
LEG THICKNESS
0.40 IN (1.02 CM)
TOTAL LENGTH
1 12.00 IN (30.48 CM)
TYPICAL TRENCH STAKE
EROSION CONTROL MATTING NOTES
1. BANKS SHALL BE SEEDED (PERMANENT & TEMPORARY) PRIOR TO PLACEMENT OF
MATTING.
2. WOODEN STAKES SHALL BE PLACED IN A DIAMOND SHAPE PATTERN PER THE PLAN
VIEW.
3. TRENCH STAKES AND WOOD STAKES SHALL BE PLACED A MAXIMUM DISTANCE APART
OF 3'.
4. EROSION CONTROL MATTING (ECM) SHOULD BE USED TO AID PERMANENT VEGETATED
STABILIZATION OF SLOPES 2:1 OR AREAS SPECIFIED IN THE PLANS.
5. RCM SHOULD BE USED WHEN MULCH CANNOT BE ADEQUATELY TACKED AND WHERE
IMMEDIATE GROUND COVER IS REQUIRED TO PREVENT EROSION DAMAGE.
6. 6" MINIMUM OVERLAP IN THE HORIZONTAL
EROSION CONTROL MATTING MAINTENANCE NOTES
1. INSPECT ECM AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER)
RAINFALL EVENT. REPAIR IMMEDIATELY.
2. GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND EROSION MUST NOT
OCCUR BENEATH THE ECM.
3. ANY AREAS OF THE ECM THAT ARE DAMAGED OR NOT IN CLOSE CONTACT WITH THE
GROUND SHALL BE REPAIRED AND STAPLED.
4. IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL
BE FIXED AND THE ERODED AREA PROTECTED.
5. MONITOR AND REPAIR THE ECM AS NECESSARY UNTIL GROUND COVER IS
ESTABLISHED.
EROSION CONTROL MATTING
NOT TO SCALE
NOTES:
1. A STABILIZED ENTRANCE PAD OF 2"-3" COURSE AGGREGATE SHALL BE LOCATED WHERE TRAFFIC
WILL ENTER OR LEAVE THE CONSTRUCTION SITE ONTO A PUBLIC STREET OR EXISTING
GRAVEL/PAVED SURFACE.
2. FILTER FABRIC OR COMPACTED CRUSHER RUN STONE SHALL BE USED AS A BASE FOR THE
CONSTRUCTION ENTRANCE.
3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING
OF SEDIMENT ONTO PUBLIC STREETS OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP
DRESSING WITH ADDITIONAL STONE AS CONDITIONS WARRANT AND REPAIR OR CLEANOUT OF ANY
MEASURES USED TO TRAP SEDIMENT.
4. ANY SEDIMENT SPILLED, DROPPED, WASHED, OR TRACKED ONTO PUBLIC STREETS MUST BE
REMOVED IMMEDIATELY.
5. WHEN APPROPRIATE, WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A
PUBLIC STREET. WHEN WASHING IS REQUIRED, IT SHALL BE DONE IN AN AREA STABILIZED WITH
CRUSHED STONE WHICH DRAINS INTO AN APPROVED SEDIMENT BASIN SEE STD. NO. 30.11 B.
6. NCDOT MAY REQUIRE A STANDARD COMMERCIAL DRIVEWAY (STD. 10.24 & 10.25) TO ACCESS THE
CONSTRUCTION SITE IF THE DRIVEWAY IS ON A THOROUGHFARE.
EXISTING GROUND
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50' MIN.
50' MIN.
CONSTRUCTION ENTRANCE
NOT TO SCALE
PUBLIC STREET
TYPE II FILTER FABRIC
UNDER 2"-3" COURSE AGGREGATE
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EXCAVATED SUBG
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EQUAL PARTS CLASS A, CLASS B
AND CLASS 1 RIP RAP, 2.0' DEPTH x BACKFILL
DEPTH*, BACKFILL VOIDS WITH ONSITE SOIL
DRAINAGE
SWALE FLOW
SCHEMATIC CROSS-SECTION
ROSION CONTROL MATTING (TYP.)
CUT E.C. MATTING AND INSTALL
PLANTS PER PLANTING PLAN
EROSION CONTROL MATTING AND BURLAP
CLOTH WRAPS AROUND LIFT AND COIR BLOCK
(SEE NOTE #5)
-COMPACTED AMENDED SOIL
,,---LOW LAYER INVERT -TOP OF
/ STONE TOE BACKFILL
EXISTING STREAMBED
BACKFILL `TOE OF BANK
DEPTH*
VEGETATED GEOLIFT
NOT TO SCALE
DRAINAGE
SWALE
A' \ FLOW -
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WITHIN THE STONE BACKFILL. BOULDERS SHALL BE
NO LESS THAN 4.0'x3.0'x2.0'.
2. THE CHANNEL BASE FLOW OR WATER SURFACE ELEVATION (WSEL) WILL VARY
-_
SEASONALLY AND MAY BE VERY LOW DURING TIMES OF DROUGHT. DURING
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DROUGHT, AS DETERMINED BY THE ENGINEER, THE WSEL WILL BE CONSIDERED
TO BE EQUAL TO THE DOWNSTREAM GRADE CONTROL ELEVATION.
3. THE CONTRACTOR WILL BE RESPONSIBLE FOR CHANGES TO THE VEGETATED
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GEOLIFT PLACEMENT IF IT IS DETERMINED BY THE ENGINEER THAT THE
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VEGETATED GEOLIFT WAS NOT INSTALLED PROPERLY.
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4. PLANTS SHALL MEET MATERIALS SPECIFICATIONS OUTLINED IN THE
SPECIAL PROVISIONS.
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5. AT THE DISCRETION OF THE PROJECT ENGINEER, COIR BLOCKS SHALL BE USED
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IN ALL LIFT LAYERS WITHIN THE GEOLIFT.
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EQUAL PARTS CLASS ° S SPLASH PAD
A, B, AND 1 STONE
FILTER
PROFILE VIEW FABRIC
BOULDER CASCADE TO SPLASH PAD
NOT TO SCALE
TOP
TOE OF
CROSS-SECTION A -A'
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CLASS I RIPRAP SPLASH
PAD
SPECIAL STILLING BASIN
(SEE PROJECT SPECIAL
PROVISIONS)
TIERING PUMP
SEQUENCE OF CONSTRUCTION FOR TYPICAL PUMP AROUND
1. INSTALL SPECIAL STILLING BASINS AT THE DOWNSTREAM END OF THE DESIGNATED PROJECT WORKING AREA.
2. THE CONTRACTOR WILL INSTALL THE PUMP AROUND PUMP AND THE TEMPORARY PIPING THAT WILL CONVEY
THE BASE FLOW FROM UPSTREAM OF THE WORK SITE.
3. INSTALL UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING OPERATIONS FOR STREAM DIVERSION.
TEMPORARY
4. INSTALL THE DOWNSTREAM IMPERVIOUS DIKE AND PUMPING APPARATUS IF NEEDED TO DEWATER THE
IMPERVIOUS DIKE (SEE FLEXIBLE
ENTRAPPED AREA. THE PUMP AND HOSE FOR THIS PURPOSE SHALL BE OF SUFFICIENT SIZE TO DEWATER
PROJECT SPECIAL HOSE
THE WORK AREA. THIS WATER WILL FLOW INTO A SPECIAL STILLING BASIN.
PROVISIONS) EXISTING
5. THE CONTRACTOR WILL PERFORM STREAM RESTORATION WORK IN ACCORDANCE WITH THE PLAN AND
CHANNEL
FOLLOWING THE GENERAL CONSTRUCTION SEQUENCE.
6. THE CONTRACTOR WILL EXCAVATE ANY ACCUMULATED SILT AND DEWATER BEFORE REMOVAL OF THE
IMPERVIOUS DIKE. REMOVE IMPERVIOUS DIKES, PUMPS, AND TEMPORARY FLEXIBLE HOSE/PIPING STARTING
WITH THE DOWNSTREAM DIKE FIRST.
7. ONCE THE WORKING AREA IS COMPLETED, REMOVE THE STILLING BASINS AND STABILIZE DISTURBED AREAS
WITH SEED AND MULCH.
TEMPORARY
NOTES:
PIPING
1. EXCAVATION SHALL BE PERFORMED IN ONLY DRY SECTIONS OF CHANNEL.
2. IMPERVIOUS DIKES SHOULD BE USED TO ISOLATE WORKAREAS FROM
STREAM FLOW.
3. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN BE
STABILIZED IN ONE WORKING DAY.
4. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR MILL
CREEK.
5. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR SALEM
CREEK.
6. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR
UT-SALEM CREEK.
IMPERVIOUS 7. PROVIDE STABILZED OUTLET TO STREAM BANK.
DIKE (SEE SANDBAG/ST
PUMP AROUND PUMP
PROJECT BASEFLOW
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PROVISIONS) AREA FLOW
IMPERVIOUS SHEET
SPECIAL STILLING BASIN
IMPERVIOUS DIKE
EXISTING
GROUND 12" MIN. CLASS A STONE
,TOP OF STREAM BANK
PROVIDE STABILIZED
FILTER FABRIC f OUTLET TO STREAM
FOR DRAINAGE BANK
TYPE 2
(NON -WOVEN)
TYPICAL PUMP AROUND OPERATION
NOT TO SCALE
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Sheet D2

GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCG01 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HOW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HOW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HOW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilization Permanent Stabilization
• Temporary grass seed covered with straw or • Permanent grass seed covered with straw or
other mulches and tackifiers other mulches and tackifiers
• Hydroseeding • Geotextile fabrics such as permanent soil
• Rolled erosion control products with or reinforcement matting
without temporary grass seed • Hydroseeding
• Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered
• Plastic sheeting with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormw
offsite.
5. Store flocculants in leak -proof containers that are kept u
or surrounded by secondary containment structures.
NCGO1
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
ater before discharging
2. Place hazardou
nderstorm-resistant cover
r NORTH CAROLI NA 3. Do not store ha
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5 f, Environmental Quality
GROUND STABILIZATION AND MATERIALS HANDLING
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect (during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (anc this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
event> 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
& Description, evidence, and date of corrective actions taken.
(3) stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDCs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5. Indication of visible sediment leavingthe site
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part 111, Section C, Item (2)(a) of this permit.
(6) Ground After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit
The following items pertaining to the E&SC plan shall be kept on site and available for
inspection at all times during normal business hours.
Item to Document
Documentation Requirements
(a) Each E&SC measure has been installed
Initial and date each E&SC measure on a copy
and does not significantly deviate from the
of the approved E&SC plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan. This documentation is required upon the
initial installation of the E&SC measures or if
the E&SC measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
plan or complete, date and sign an inspection
plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC measures.
plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-N01 and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART 11, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
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BEL13W�GRAI& 46SHnUT STRUCTURE ABOVE GRA & 46MIlT STRUrTURF
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
1AZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
waste containers under cover or in secondary containment.
zardous chemicals, drums or bagged materials directly on the ground.
s
EFFECTIVE: 04/01 / 19
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours, an oral or electronic notification.
deposition in a
• Within 7colendordays, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the INC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
• Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill cr release.
substances per Item
1(b)-(c) above
(c) Anticipated
• A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
• Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
• Within 7calendardays, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect ofthe bypass.
(e) Noncompliance
• Within 24hours, an oral or electronic notification.
with the conditions
• Within 7calendardays, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(1)(7)]
prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
a" I '•.I NORTH CAROLI NA
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NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19I
Drawing:
SevenMile_.dwg
Sheet N1

U.S. Department of Agriculture NRCS-CPA-52
A. Client Name: Durham County
Natural Resources Conservation Service 412013
ENVIRONMENTAL EVALUATION WORKSHEET
B. Conservation Plan ID # (as applicable): DSR # 37-01-18-5038-158
Program Authority (optional): EWP
D. Client's Objective(s) (purpose):
C. Identification # (farm, tract, field #, etc. as required):
Remove storm debris in waterways resulting from
ContinentalDr
Hurricane Florence.
E. Need for Action:
H. Alternatives
Clearing and snagging,
No Action if RMS
Alternative 1 if RMS
Alternative 2 if RMS
Streambank Stabilization
Increased threat of flooding
Removal of debris; restoration
impacting public health/safety.
of waterways hydraulic
functions (326) ,- Clearing &
Snagging, Streambank
Stabilization
Resource Concerns
In Section 7" below, analyze, record, and address concerns identified through the Resources Inventory process.
(See FOTG Section III - Resource Planning Criteria for guidance).
F. Resource Concerns
I. Effects of Alternatives
and Existing/ Benchmark
No Action
Alternative 1
Alternative 2
Conditions
(Analyze and record the
Amount, Status, Description
� if
Amount, Status, Description
� if
Amount, Status, Description
if
existing/benchmark
does
NOT
does
NOT
does
NOT
conditions for each
(Document both short and long
meet
(Document both short and long
meet
(Document both short and long
meet
identified concern)
term impacts)
PC
term impacts)
PC
term impacts)
PC
SOIL: EROSION
No resource concern
Continued increase of flooding in the
n
Decrease flooding through the
❑
identified
waterway
NOT
waterway
NOT
NOT
Sediment build-up from
Hurricane Florence
meet
meet
meet
PC
PC
PC
n
NOT
F
NOT
n
NOT
meet
meet
meet
PC
PC
PC
SOIL: SOIL QUALITY DEGRADATION
No resource concern identified
❑
NOT
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
❑
NOT
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
WATER: EXCESS / INSUFFICIENT WATER
Excess (Ponding, flooding, seasonal
Moderate to Substantial
n
Moderate to
Ll
❑
high water table, seeps, and drifted
Worsening - Debris in waterway
increases potential flooding
NOT
Substantial Improvement - Debris
removal will restore waterway to
NOT
NOT
Increased threat of flooding to
private and public properties due
resulting from future storm
meet
prior storm conditions.
meet
meet
to debris impacting waterways
events.
PC
PC
PC
hydraulic functions.
WATER: WATER QUALITY DEGRADATION
No resource concern identified
N/A
I —I
NOT
N/A
NOT
NOT
lo
meet
meet
meet
PC
PC
PC
resource concern identified
❑
NOT
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
NKCS-CYA-_')2, April 2013
NC Revision: May 2018

F. Resource Concerns
I. (continued)
and Existing/ Benchmark
No Action
Alternative 1
Alternative 2
Conditions
(Analyze and record the
Amount, Status, Description
� if
Amount, Status, Description
� if
Amount, Status, Description
� if
does
does
does
existing/benchmark
NOT
NOT
NOT
conditions for each
(Document both short and long
meet
(Document both short and long
meet
(Document both short and long
meet
identified concern)
term impacts)
Pc
term impacts)
Pc
term impacts)
Pc
AIR: AIR QUALITY IMPACTS
No resource concern identified
N/A
❑
NOT
N/A
❑
NOT
NOT
meet
meet
meet
PC
PC
PC
No resource concern identified
❑
NOT
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
PLANTS: DEGRADED PLANT CONDITION
No resource concern identified
N/A
❑
NOT
N/A
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
❑
NOT
❑
NOT
El
NOT
meet
meet
meet
PC
PC
PC
ANIMALS: INADEQUATE HABITAT
FOR FISH AND WILDLIFE
Habitat degradation
Aquatic habitat conditions will
❑�
Removing blockages and
❑
❑
degrade further in left untreated.
sediment will improve aquatic
Hurricane Florence caused the
NOT
habitat conditions.
NOT
NOT
bank to erode or windblown trees
meet
meet
meet
o result in a vertical bank
PC
PC
PC
ANIMALS: LIVESTOCK PRODUCTION LIMITATION
No resource concern identified
N/A
❑
NOT
N/A
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
NOT
NOT
NOT
meet
meet
meet
PC
PC
PC
ENERGY: INEFFICIENT ENERGY
USE
No resource concern identified
N/A
❑
NOT
N/A
❑
NOT
❑
NOT
meet
meet
meet
PC
PC
PC
NOT
NOT
NOT
meet
meet
meet
PC
PC
PC
HUMAN: ECONOMIC AND SOCIAL CONSIDERATIONS
Public Health and Safety
Current conditions are negatively impacting
public health and safety and will potentially
Implemented practice will restore hydraulic
functions and public services' response time to
ublic Health and Safety is compromised with
urrent and potential flooding conditons that
Risk
Increase risk of flooding resulting from
waterway impairments.
Implemented practice will restore hydraulic
functions to prior storm conditions.
Apparent risk of waterway's
functionality.
Land Use
Hydaulic functions will continue to deteriorate
with future storm events.
Implemented practice will restore hydaulic
function to prior storm conditions.
Obstruction of waterway is impacting
hydraulic function.
NRCS-CPA-52, April 2013
NC Revision: May 2018

Special Environmental Concerns: Environmental Laws, Executive Orders, policies, etc.
In Section "G" complete and attach Environmental Procedures Guide Sheets for documentation as applicable. Items with a "•" may require a
federal permit or consultation/coordination between the lead agency and another government agency. In these cases, effects may need to be
determined in consultation with another agency. Planning and practice implementation may proceed for practices not involved in
consultation.
G. Special Environmental
J. Impacts to Special Environmental Concerns
No Action
I Alternative 1
Alternative 2
Concerns
(Document existing/
Document all impacts
if
Document all impacts
if
Document all impacts
if
benchmark conditions)
(Attach Guide Sheets as
applicable)
needs
further
action
(Attach Guide Sheets as
applicable)
needs
further
action
(Attach Guide Sheets as
applicable)
needs
further
action
•Clean Air Act
No Effect
No Effect
Guide Sheet FS1 FS-2
NA
Not present in the PLU
•Clean Water Act / Waters of the
May Effect
May Effect
Debris is impairing hydraulic
Stream Stabilization/Protection will
U.S.
❑
❑
Guide Sheet Fact Sheet
functions
follow conditions outlined in
Sevenmile Creek
Nationwide Permit #13.
•Coastal Zone Management
May Effect
No Effect
Debris is impairing hydraulic
Implemented practice will restore
Guide Sheet Fact Sheet
❑
Not present in the PLU
functions
hydraulic function to prior storm
conditions.
Coral Reefs
No Effect
ect
Guide Sheet Fact Sheet
NA
r
❑
Not present in the PLU
•Cultural Resources / Historic
No Effect
No Effect
Properties
NA
CRR resulted in a "No Effect' finding.
Guide Sheet Fact Sheet
There are no National Register
eligible properties
•Endangered and Threatened
No Effect
No Effect
Species
NA
None present. Not within the Dwarf
Guide Sheet Fact Sheet
wedgemussel (Alasmidonta
9 Species on County T&E list.
heterodon) range.
Used ICM to determine potential
Environmental Justice
May Effect
No Effect
Guide Sheet Fact Sheet
Increased threat to public health
and safety due to non or partial
treatment
•Essential Fish Habitat
No Effect
No Effect
Guide Sheet Fact Sheet
❑
NA
Floodplain Management
May Effect
No Effect
Increased risk of flooding
Implemented practice will restore
Guide Sheet Fact Sheet
❑
Not present in the PLU
hydraulic functions to prior storm
Invasive Species
No Effect
No Effect
Guide Sheet Fact Sheet
❑
NA
Removal of debris from storm
Not present in the PLU
damage only
•Migratory Birds/Bald and
No Effect
No Effect
Golden Eagle Protection Act
❑
❑
❑
NA
Guide Sheet Fact Sheet
Not present in the PLU
Natural Areas
No Effect
No Effect
Guide Sheet Fact Sheet
❑
NA
Not present in the PLU
Prime and Unique Farmlands
No Effect
No Effect
NA
Guide Sheet Fact Sheet
❑
Not present in the PLU
Riparian Area
May Effect
No Effect
Debris will cause impairments to
Implemented practice will restore
Guide Sheet Fact Sheet
❑
Not present in the PLU
aquatic habitat
habitat to prior storm conditions
Scenic Beauty
May Effect
No Effect
Debris deminishes scenic beauty
Implemented practice will lessen
Guide Sheet Fact Sheet
❑
Not present in the PLU
impacts to scenic beauty
•Wetlands
No Effect
No Effect
Guide Sheet Fact Sheet
❑
NA
Not present in the PLU
•Wild and Scenic Rivers
lNo Effect
No Effect
Guide Sheet Fact Sheet
❑
NA
Not present in the F
I
11PS-rPA-52,
April 2013
NC Revision: May 2018

K. Other Agencies and
Broad Public Concerns
No Action
Alternative 1
Alternative 2
Easements, Permissions, Public
County(Local) Permit/Authorization. Sponsor
Review, or Permits Required and
will contact the USACE and comply with
Agencies Consulted.
Nationwide Permit #13 guidelines.
Cumulative Effects Narrative
Due to damages of waterway infrastructure from
This alternative will have moderate to
(Describe the cumulative impacts
Hurricane Florence there are current and future
substantial improvements on the resources by
considered, including past,
t impacts to waterway's hydraulic functions. Future
restoring waterways function to prior storm
present and known future actions
impacts could result in threat to public road that would
conditions and preventing future damages.
regardless of who performed the
impact emergency/public services and local
residents/business, and increased.
actions)
L. Mitigation
Follow USACE Nationwide Permit #13 &
(Record actions to avoid,
General Conditions.
minimize, and compensate)
M. Preferred
preferred❑
❑
❑
Iternative
alternative
Alternative best meets the purpose and
Supporting
need for action.
reason
N. Context (Record context of alternatives analysis)
The significance of an action must be analyzed in several contexts such as society as a whole (human, national), the affected region, the affected
interests, and the locality.
O. Determination of Significance or Extraordinary Circumstances
Intensity: Refers to the severity of impact. Impacts may be both beneficial and adverse. A significant effect may exist even if the Federal agency
believes that on balance the effect will be beneficial. Significance cannot be avoided by terming an action temporary or by breaking it down into small
component parts.
If you answer ANY of the below questions "yes" then contact the State Environmental Liaison as there may be extraordinary circumstances
and significance issues to consider and a site specific NEPA analysis may be required.
Yes No
n 0 • Is the preferred alternative expected to cause significant effects on public health or safety?
n ❑� • Is the preferred alternative expected to significantly affect unique characteristics of the geographic area such as proximity to historic
or cultural resources, park lands, prime farmlands, wetlands, wild and scenic rivers, or ecologically critical areas?
n 0 • Are the effects of the preferred alternative on the quality of the human environment likely to be highly controversial?
n 0 • Does the preferred alternative have highly uncertain effects or involve unique or unknown risks on the human environment?
n • Does the preferred alternative establish a precedent for future actions with significant impacts or represent a decision in principle
about a future consideration?
❑� • Is the preferred alternative known or reasonably expected to have potentially significant environment impacts to the quality of the
human environment either individually or cumulatively over time?
• Will the preferred alternative likely have a significant adverse effect on ANY of the special environmental concerns? Use the
Evaluation Procedure Guide Sheets to assist in this determination. This includes, but is not limited to, concerns such as cultural or
historical resources, endangered and threatened species, environmental justice, wetlands, floodplains, coastal zones, coral reefs,
essential fish habitat, wild and scenic rivers, clean air, riparian areas, natural areas, and invasive species.
n n • Will the preferred alternative threaten a violation of Federal, State, or local law or requirements for the protection of the
environment?
P. To the best of my knowledge, the data shown on this form is accurate and complete:
In the case where a non-NRCS person (e.g. a TSP) assists with planning they are to sign the first signature block and then NRCS is to sign the second
block to verify the information's accuracy.
"-idswa a wael�o+a. & -Da Contractors 3/29/2019
Signature (TSPDigay .�gic9Y'y9�REMvr;OsroN Title Date
JEREMY ROSTON NAVAS Nnvns Conservation Planning Specialist 5/22/2019
D.ft - )019.OS J7 I4-07-SZ-04'00'
Signature (NRCS) Title Date
If preferred alternative is not a federal action where NRCS has control or responsibility and this NRCS-CPA-52 is shared with someone other
than the client then indicate to whom this is being provided.
NRCS-CPA-52, April 2013
NC Revision: May 2018

The following sections are to be completed by the Responsible Federal Official (RFO)
NRCS is the RFO if the action is subject to NRCS control and responsibility (e.g., actions financed, funded, assisted, conducted, regulated, or approved
by NRCS). These actions do not include situations in which NRCS is only providing technical assistance because NRCS cannot control what the client
ultimately does with that assistance and situations where NRCS is making a technical determination (such as Farm Bill HEL or wetland determinations)
not associated with the planning process.
Q. NEPA Compliance Finding (check one)
The preferred alternative: Action required
❑
1) is not a federal action where the agency has control or responsibility.
Document in "R.1" below.
No additional analysis is required
❑
2) is a federal action ALL of which is categorically excluded from further environmental
Document in "R.2" below.
analysis AND there are no extraordinary circumstances as identified in Section "O".
No additional analysis is required
3) is a federal action that has been sufficiently analyzed in an existing Agency state, regional,
Document in "R.1" below.
❑
or national NEPA document and there are no predicted significant adverse environmental
No additional analysis is required.
effects or extraordinary circumstances.
4) is a federal action that has been sufficiently analyzed in another Federal agency's NEPA
Contact the State Environmental Liaison
document (EA or EIS) that addresses the proposed NRCS action and its' effects and has been for
list of NEPA documents formally
❑
formally adopted by NRCS. NRCS is required to prepare and publish its own Finding of No
adopted and available for tiering.
Significant Impact for an EA or Record of Decision for an EIS when adopting another agency's
Document in "R.1" below.
EA or EIS document. (Note: This box is not applicable to FSA)
No additional analysis is required
is a federal action that has NOT been sufficiently analyzed or may involve predicted
Contact the State Environmental
1-1
significant
significant adverse environmental effects or extraordinary circumstances and may require an
Liaison. Further NEPA analysis
EA or EIS.
required.
R. Rationale Supporting the Finding
R.1
Findings Documentation
R,2
(7) Removing storm debris and sediment following a natural disaster where there is a continuing and eminent threat to public health or safety,
Applicable Categorical
property, and natural and cultural resources and removal is necessary to restore lands to pre -disaster conditions to the extent practicable.
Exclusion(s)
Excavation will not exceed the pre -disaster condition;
(more than one may apply)
7 CFR Part 650 Compliance
(8) Stabilizing stream banks and associated structures to reduce erosion through bioengineering techniques following a natural disaster to
With NEPA, subpart 650.6
restore pre -disaster conditions to the extent practicable, e.g., utilization of living and nonliving plant materials in combination with natural and
Categorical Exclusions states
synthetic support materials, such as rocks, riprap, geo-textiles, for slope stabilization, erosion reduction, and vegetative establishment and
prior to determining that a
establishment of appropriate plant communities (bank shaping and planting, brush mattresses, log, root wad, and boulder stabilization
proposed action is categorically
methods);
excluded under paragraph (d) of
this section, the proposed action
must meet six sideboard criteria.
See NECH 610.116.
1 have considered the effects of the alternatives on the Resource Concerns, Economic and Social Considerations, Special Environmental
Concerns, and Extraordinary Circumstances as defined by Agency regulation and policy and based on that made the finding indicated above.
S. Signature of Responsible Federal Official:
JEREMY ROSTON Digitally signed byJEREMY
ROSTON NAVAS Conservation Planning Specialist 5/22/2019
N AVAS Date:
2019.05.22 14:08:15-04'00'
Signature Title
Date
Additional notes
Project Sponsor is responsible for securing any land -rights, applicable permitting requirements, follow any local, state, and
agency specific regulatory guidance, and avoid irreversible impacts to SECS (see list in Section J of this worksheet). If SEC's
are discovered during the project's pre -construction or implementation phase, the project shall be halted and NRCS notified
immediately. Sponsor will contact the USACE and comply with Nationwide Permit #13 guidelines.
NRCS-CPA-52, April 2013
NC Revision: May 2018

ID#* 20201974
Regional Office
Reviewer List*
Version* 1
Central Office - [phone]
Rick Trone
Pre -Filing Meeting Request submitted 12/17/2020
Contact Name *
Simon Gregg
Contact Email Address*
[e-mail]
Project Name*
SEVEN MILE CREEK RESTORATION USDA NRCS WATERSHED
PROTECTION PROGRAM
Project Owner*
Piedmont Conservation Council
Project County*
Durham
Owner Address: Street Address
201 E. MAIN STREET, 5TH FLOOR
Address Line 2
aty
State / Rovince / Fbgion
Durham
NC
Fbstal / Zip Code
Country
27701
US
Is this a transportation project?* r Yes t: No
Type(s) of approval sought from the DWR:
J 401 Water Quality Certification - ❑ 401 Water Quality Certification -
Regular Express
❑ Individual Permit f Modification
n Shoreline Stabilization
Does this project have an existing project ID#?*
r Yes r No
Do you know the name of the staff member you would like to request a meeting with?
NO
Please give a brief project description below.*

THIS PROJECT INCLUDES RESTORATION AND STABILIZATION OF
APPROXIMATELY 350LF OF SEVEN MILE CREEK WHICH WAS
BADLY DAMAGED BY EROSION AND FLOODING DURING
HURRICANE FLORENCE. THE PROJECT IS LOCATED IN DURHAM,
NORTH CAROLINA (36.072519,-78.963940). THE PIEDMONT
CONSERVATION COUNCIL HAS SECURED GRANT FUNDING
THROUGH THE UNITED STATES DEPARTMENT OF AGRICULTURE,
NATURAL RESOURCES CONSERVATION SERVICE, EMERGENCY
WATERSHED PROTECTION PROGRAM FOR DESIGN AND
CONSTRUCTION OF THIS RESTORATION. THE RESTORATION
INVOLVES THE CONSTRUCTION OF BOULDER WALLS AND
VEGETATED GEOLIFTS, REINFORCEMENT OF EXISTING RIFFLE
STRUCTURES, BANK SLOPING, AND INSTALLATION OF STONE,
WOOD, COIR LOGS, AND EROSION CONTROL MATTING. ALL
WORK SHALL BE SUBJECT TO THE DIRECTION AND INSPECTION
OF THE PROJECT ENGINEER.
THIS PROJECT IS LOCATED IN THE ENO RIVER WATERSHED AND
MOST OF THE PROJECT IS IN THE SEVEN MILE CREEK FEMA
REGULATED FLOODPLAIN.
Please give a couple of dates you are available for a meeting.
12/21 /2020
12/22/2020
12/23/2020
1 /4/2021
1 /5/2021
Please attach the documentation you would like to have the meeting about.
001-SEVEN MILE -COVER signed.pdf
2.68MB
002-SEVEN MILE- NOT ES —Sig ned.pdf
171.22KB
003-SEVEN MILE-EMSITING.pdf
665.35KB
004-SEVEN MILE- IMPACTS_signed.pdf
3.95MB
005-SEVEN MILE-DEMO_signed.pdf
4.09MB
006-SEVEN MILE-SCHEMATIC_signed.pdf
874.62KB
007-SEVEN MILE-GRADING_signed.pdf
601.26KB
008-SEVEN MILE- PROF ILE_signed.pdf
496.31KB
009-SEVEN MILE-SECTIONS_signed.pdf
194.99KB
010-SEVEN MILE- PLANT ING_sig ned. pdf
4.06MB
011-SEVEN MILE -DETAILS 1_signed.pdf
413.25KB
012-SEVEN MILE -DETAILS 2_signed.pdf
497.03KB
013-SEVEN MILE -DETAILS 3_signed.pdf
206.44KB
014-SEVEN MILE- NCGO1signed. pdf
5.01MB
pdf only
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
• This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
• I understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.

I also understand that DWR is not required to respond or grant the meeting request.
Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.
Signature
tlW.�
Submittal Date 12/17/2020
Reviewer Meeting Request Decision
Has a meeting been scheduled?* 4 Yes 4 NO

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VICINITY MAP
SEVEN MILE CREEK RESTORATION
USDA NRCS WATERSHED
PROTECTION PROGRAM
DURHAM, NC
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SHEET TITLE
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NOTES
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EXISTING CONDITIONS
E3
PERMIT/IMPACTS
E4
DEMO AND EROSION CONTROL
P1
SCHEMATIC
P2
GRADING
P3
PROFILE
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SECTION PLOTS
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PLANTING PLAN
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DETAILS
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DETAILS
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Drawing:
SevenMile_.dwg
Sheet C 1

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THIS PROJECT INCLUDES RESTORATION AND STABILIZATION OF APPROXIMATELY 350LF OF SEVEN MILE CREEK WHICH
WAS BADLY DAMAGED BY EROSION AND FLOODING DURING HURRICANE FLORENCE. THE PROJECT IS LOCATED IN DURHAM,
NORTH CAROLINA (36.072519,-78.963940). THE PIEDMONT CONSERVATION COUNCIL HAS SECURED GRANT FUNDING
THROUGH THE UNITED STATES DEPARTMENT OF AGRICULTURE, NATURAL RESOURCES CONSERVATION SERVICE,
EMERGENCY WATERSHED PROTECTION PROGRAM FOR DESIGN AND CONSTRUCTION OF THIS RESTORATION. THE
RESTORATION INVOLVES THE CONSTRUCTION OF BOULDER REVETMENT WALLS AND VEGETATED GEOLIFTS,
REINFORCEMENT OF EXISTING RIFFLE STRUCTURES, BANK SLOPING, AND INSTALLATION OF STONE, WOOD, COIR LOGS,
AND EROSION CONTROL MATTING. ALL WORK SHALL BE SUBJECT TO THE DIRECTION AND INSPECTION OF THE PROJECT
ENGINEER.
THIS PROJECT IS LOCATED IN THE ENO RIVER WATERSHED AND MOST OF THE PROJECT IS IN THE SEVEN MILE CREEK
FEMA REGULATED FLOODPLAIN.
PROJECT NOTES:
THE LOCATION AND ALIGNMENT OF ALL IMPROVEMENTS SHOWN ARE APPROXIMATE. THE FINAL LOCATION AND ALIGNMENT SHALL BE
DETERMINED DURING CONSTRUCTION USING BEST PROFESSIONAL JUDGMENT AND APPROVED BY THE PROJECT ENGINEER.
MATERIALS LISTS ARE PROVIDED AS AN APPROXIMATION ONLY. CONTRACTOR SHALL INDEPENDENTLY VERIFY THE NUMBER AND AMOUNT
OF STONE, BACKFILL, OR OTHER ITEMS NECESSARY TO PROPERLY COMPLETE THE JOB.
THE LATEST VERSION OF THE FOLLOWING STANDARDS APPLIES TO THESE SPECIFICATIONS.
A.NCDOT "STANDARD SPECIFICATIONS FOR ROADS AND STRUCTURES"
B. NCDEQ/DEMLR "EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL"
THE CONTRACTOR SHALL CALL THE "CALL BEFORE YOU DIG" TOLL FREE NUMBER TO MAKE SURE THAT ALL UTILITIES ARE LOCATED AND
MARKED. ANY DAMAGE TO EXISTING UTILITIES IS THE RESPONSIBILITY OF THE CONTRACTOR.
ANY DAMAGE RESULTING FROM ACTIONS OF THE CONTRACTOR TO STRUCTURES OR GROUNDS ON SITE WILL BE REPAIRED OR REPLACED
AT THE EXPENSE OF THE CONTRACTOR, TO A QUALITY MEETING OR EXCEEDING THEIR PREVIOUS STANDARDS.
THE CONTRACTOR IS TO ENSURE PUBLIC SAFETY DURING ALL PHASES OF CONSTRUCTION.
THE CONTRACTOR IS RESPONSIBLE FOR CLEARING AND DISPOSING OF ANY MAN-MADE MATERIALS OR OTHER DEBRIS THAT LIE WITHIN THE
CONSTRUCTION LIMITS, AS REQUESTED AND APPROVED BY THE PROJECT ENGINEER.
THE CONTRACTOR IS RESPONSIBLE FOR ENSURING THAT THE STREETS IN FRONT OF THE CONSTRUCTION SITE WILL BE KEPT CLEAN AT ALL
TIMES. IF NEEDED TO ACCOMPLISH THIS TASK A WASH STATION MAY BE REQUIRED.
STREAM CONSTRUCTION NOTES:
1. ALL PROPOSED CHANNELS AND TEMPORARY AND PERMANENT CROSSINGS SHALL BE CONSTRUCTED IN A DRY CONDITION VIA OFFLINE
CONSTRUCTION WHERE POSSIBLE. DIVERSIONS, COFFER DAMS, AND PUMP AROUND OPERATIONS SHOULD BE UTILIZED TO FACILITATE
DRY CONSTRUCTION WHERE POSSIBLE.
2. ALL IMPERVIOUS DIKES AND PUMPING APPARATUS SHALL BE REMOVED FROM THE STREAM AT THE COMPLETION OF EACH WEIR TO
RESTORE NORMAL FLOW BACK TO THE CHANNEL UNLESS OTHERWISE APPROVED BY THE ENGINEER. WITH APPROVAL, A PUMP AROUND
MAY BE ALLOWED TO RUN CONTINUOUSLY IF THERE IS NO FORECAST FOR RAIN OVERNIGHT, AND/OR THE PUMP APPARATUS IS
MAINTAINED AND MONITORED CONTINUOUSLY.
3. CONSTRUCT UPSTREAM PORTION OF THE WORK FIRST, WORKING IN AN UPSTREAM TO DOWNSTREAM DIRECTION, UNLESS OTHERWISE
APPROVED PROJECT ENGINEER.
4. REMOVE AND STOCKPILE TOPSOIL WITHIN AREAS THAT ARE TO BE CUT 9" OR MORE BELOW EXISTING GRADE. STOCKPILED TOPSOIL IS TO
BE REPLACED ON TERRACE OR STREAMBANK SLOPES DURING FINAL GRADING.
5. INSTALL STRUCTURES AS SHOWN ON PLANS AND DETAILS. PRIOR TO FINE GRADING, OBTAIN APPROVAL BY PROJECT ENGINEER ON
INSTALLATION OF ALL STRUCTURES.
6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS. THIS MATERIAL SHALL BE UTILIZED IN THE TOP
LAYERS OF THE REINFORCED RIFFLES. IN AREAS WHERE THERE IS NOT ENOUGH NATIVE SUBSTRATE TO PLACE AN MINIMUM 6" LAYER
ALONG PROPOSED SHALLOW/RIFFLE SECTIONS, SUPPLEMENT THE NATIVE SUBSTRATE WITH A 50 50 MIX OF #57 AND #4 STONE.
7. UPON COMPLETION OF FINE GRADING, INSTALL STREAM BANK STABILIZATION INCLUDING, EROSION CONTROL MATTING OR SOD MATS
ALONG CHANNEL BANKS.
SEEDING NOTES:
ALL DISTURBED AREAS SHALL BE DRESSED TO A DEPTH OF 8 INCHES. THE TOP 3 INCHES SHALL BE PULVERIZED TO PROVIDE A UNIFORM
SEEDBED. AGRICULTURAL LIME SHALL BE APPLIED AT THE RATE OF 95 LB/1000 SQ. FT. IMMEDIATELY BEFORE PLOWING. GRASS SEED SHALL BE
APPLIED AT THE RATES OUTLINED IN THE FOLLOWING TABLES.
10-10-10 (FALL) / 5-10-10 (SPRING) FERTILIZER SHALL BE APPLIED TO ALL DISTURBED AREAS AT A RATE OF 2 TONS/ACRE AND MULCHING SHALL
CONSIST OF SMALL GRAIN STRAW APPLIED AT A RATE OF 1-2 TONS/ACRE. MULCHED AREAS SHALL BE TACKED WITH ASPHALT AT A RATE OF
435 GALLONS PER ACRE, OR OTHER APPROVED METHOD SUFFICIENT TO HOLD THE STRAW IN PLACE.
IF ACTIVE CONSTRUCTION CEASES, MEANING NO SUBSTANTIAL OR SIGNIFICANT PROGRESS IS MADE IN ANY AREA FOR MORE THAN 15 DAYS,
ALL DISTURBED AREAS MUST BE SEEDED, MULCHED, AND TACKED UNLESS WRITTEN APPROVAL IS GRANTED BY THE STORMWATER
ENGINEERING TECHNICIAN. INCIDENTAL GRADING SHALL NOT CONSTITUTE SUBSTANTIAL OR SIGNIFICANT PROGRESS IN CONSTRUCTION
ACTIVITY.
AS A PART OF PERMANENT SEEDING, MAINTENANCE MAY BE REQUIRED TO
MAINTAIN VEGETATION FOR 12 MONTHS (INCLUDING MOWING AND WATERING). THIS MAINTENANCE SHALL BE CONSIDERED A PART OF
ESTABLISHING PERMANENT GROUND COVER.
GENERAL SEEDING NOTES:
RE -SEED ALL DISTURBED AREAS AND SLOPES AS DIRECTED. PERMANENT SEEDING (SPRING/SUMMER ONLY) OF: 50LBS/ACRE TALL
FESCUE, 5LBS/ACRE CENTIPEDE, 25 LBS/ACRE BERMUDAGRASS (HULLED) APPLY FERTILIZER (10-20-20) AT A RATE OF 500LBS/AC AND LIME
AT 4000LBS/ACRE. SPREAD STRAW MULCH ON ANY DISTURBED AREAS AT A RATE OF 1.5 TONS /ACRE.
EROSION CONTROL NOTES:
1. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC) MUST BE
OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR.
2. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT THE E&SC PLAN.
AFTER DEMLR INFORMS THE PERMITTEE OF THE PROJECT CLOSE OUT, VIA INSPECTION REPORT, THE PERMITTEE
SHALL VISIT DEQ.NC.GOV/NCG01 TO SUBMIT AN ELECTRONIC NOTICE OF TERMINATION (E-NOT). A $100 ANNUAL
GENERAL PERMIT FEE WILL BE CHARGED UNTIL THE E-NOT HAS BEEN FILLED OUT.
3. CONTACT THE DEMLR WINSTON SALEM REGIONAL OFFICE AT LEAST 48 HOURS PRIOR TO COMMENCING THE
LAND -DISTURBING ACTIVITY. THE CONTACT NUMBER IS [phone]
4. THE CONTRACTOR SHALL CONDUCT SELF -INSPECTIONS OF THE EROSION AND SEDIMENTATION CONTROL
MEASURES AND COMPETE THE COMBINED SELF -INSPECTION FORM FOUND ON THE DEMLR WEBSITE. TWELVE
MONTHS OF COMPLETE INSPECTION FORMS SHALL BE KEPT ON -SITE AND AVAILABLE FOR INSPECTION AT ALL
TIMES. IT IS RECOMMENDED A COPY BE KEPT IN A PERMITS BOX.
5. ALL EROSION CONTROL NEAR ACTIVE CONSTRUCTION MUST BE SET-UP AND INSPECTED PRIOR TO
COMMENCEMENT OF GRADING
OPERATIONS.
6. ALL SLOPES SHALL BE SEEDED AND STABILIZED WITH A DENSE COVERAGE OF GRASS. ANY EXPOSED OR
BARE SLOPES SHALL BE RE -SEEDED OR PROTECTED WITH EROSION CONTROL MATTING. EROSION CONTROL
MATTING SHALL MEET THE REQUIREMENTS OF ROLANKA COIR MAT 70 AND INCLUDE LESS THAN 40% OPENINGS.
7. ALL BACKFILL SHALL BE SUITABLE FOR PLANT GROWTH AND GENERALLY FREE OF DEBRIS OR OTHER
MATERIAL GREATER THAN 2 INCHES IN SIZE.
8. ALL ELEVATIONS AND CHANNEL DIMENSIONS SHALL BE MET WITHIN A TOLERANCE OF 0.1'
9. STABILIZATION MEASURES SHALL BE IMPLEMENTED AS SOON AS POSSIBLE FOLLOWING COMPLETED AREAS
OF CONSTRUCTION. SPECIFIC SEEDING REQUIREMENTS ARE PROVIDED IN THE PLANTING PLAN.
10. PROVIDE TEMPORARY OR PERMANENT GROUNDCOVER ON ALL EXPOSED AREAS WITHIN 7 CALENDAR DAYS
FOLLOWING COMPLETION OF ANY PHASE OF GRADING. PROVIDE A PERMANENT GROUNDCOVER FOR ALL
DISTURBED AREAS WITHIN 14 WORKING DAYS OR WITHIN 90 CALENDAR DAYS (WHICHEVER IS SHORTER)
FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT.
11. ALL SEDIMENT AND EROSION CONTROL DEVICES SHALL BE INSPECTED EVERY SEVEN (7) DAYS OR AFTER
EACH RAINFALL OCCURRENCE THAT EXCEEDS ONE-HALF (1/2) INCH. DAMAGED OR INEFFECTIVE DEVICES SHALL BE
REPAIRED OR REPLACED, AS NECESSARY.
12. ALL EROSION CONTROL DEVICES SHALL BE PROPERLY MAINTAINED DURING ALL PHASES OF THE
CONSTRUCTION UNTIL THE COMPLETION OF ALL CONSTRUCTION ACTIVITIES AND ALL DISTURBED AREAS HAVE
BEEN STABILIZED. ADDITIONAL CONTROL DEVICES MAY BE REQUIRED DURING CONSTRUCTION IN ORDER TO
CONTROL EROSION AND/OR OFF -SITE SEDIMENTATION. ALL TEMPORARY CONTROL DEVICES SHALL BE REMOVED
ONCE CONSTRUCTION IS COMPLETE AND THE SITE IS STABILIZED.
13. THE CONTRACTOR MUST TAKE NECESSARY ACTION TO MINIMIZE THE TRACKING OF MUD TO OFF SITE AREAS.
THE CONTRACTOR SHALL DAILY REMOVE MUD/SOIL FROM PAVEMENT, AS MAY BE REQUIRED.
14. THE CONTRACTOR SHALL ACCOMPLISH ALL STREAMBANK EXCAVATION FROM OUTSIDE THE ACTIVE
CHANNEL WHENEVER POSSIBLE. ALL DISTURBED STREAMBANK MUST BE STABILIZED WITH SEEDING, MULCH AND
EROSION CONTROL MATTING BY THE END OF EACH WORKDAY.
PLANTING NOTES:
1. ALL INVASIVE SPECIES TO BE REMOVED FROM ALL AREAS BEFORE PROCEEDING WITH PLANTINGS.
2. ALL PLANTS SHALL BE INSPECTED AND APPROVED BY THE PROJECT ENGINEER PRIOR TO INSTALLATION. PLANTING
LOCATIONS ARE APPROXIMATE AND MUST BE APPROVED BY THE PROJECT ENGINEER PRIOR TO INSTALLATION.
3. AREAS TO BE PLANTED ARE SHOWN ON THE PLAN. IF UTILITIES ARE ENCOUNTERED, PLANTS MAY BE REPOSITIONED
SLIGHTLY TO AVOID IMPACT.
4. PLANTS AND PLANTING SHALL MEET THE STANDARDS OF ANSI Z60.1 AND ANSI A 300 AND BE COMPLETED ACCORDING
TO PROJECT SPECIFICATIONS.
5. ALL PLANTING SHALL BE DONE IN A SUITABLE SEASONAL TIMEFRAME FOR EACH SPECIES:
5.1. WETLAND SEEDING, PLUGS, AND SHRUBS SHALL BE INSTALLED IN THE SPRING PRIOR TO JUNE 1 OR IN THE FALL
PRIOR TO OCTOBER 31.
5.2. TREES SHALL BE PLANTED IN THEIR DORMANT SEASON AND PRIOR TO MARCH 1.
6. TREES SHALL BE OF SUFFICIENT SIZE AND HEALTH TO BE STABLE WITHOUT STAKING. STAKING MAY BE ALLOWED WITH
APPROVAL AND INSPECTION OF THE PROJECT ENGINEER.
7. PERMANENT SEEDING SHALL NOT CONTAIN ANY FESCUE GRASSES. PLACE SEEDING AS SPECIFIED IN THE PLAN.
8. A DENSE STAND OF TEMPORARY AND PERMANENT VEGETATION IS REQUIRED PRIOR TO PROJECT COMPLETION. ANY
AREAS NOT ESTABLISHED MUST BE RETILLED, RESEEDED, AND PROTECTED WITH COIR MATTING.
9. SPREAD SEED UNIFORMLY UNDER COIR FIBER MATTING ALONG CHANNEL BANKS.
10. STABILIZE ALL EXPOSED AREAS AT STREAM BANKS WITH THE RIPARIAN SEED MIX.
11. SILKY WILLOW & SILKY DOGWOOD LIVE STAKES PLANTED ALONG OUTSIDE MEANDER BENDS AND SPACED ACCORDING
TO DETAILS.
12. SEE TECHNICAL SPECIFICATIONS FOR ADDITIONAL INSTRUCTIONS AND REQUIREMENTS.
13. EROSION CONTROL MEASURES SHALL BE PROPERLY MAINTAINED UNTIL PERMANENT VEGETATION IS ESTABLISHED
AND FINAL APPROVAL HAS BEEN ISSUED. THE CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AT THE
END OF EACH WORKING DAY TO ENSURE MEASURES ARE FUNCTIONING PROPERLY.
14. DISTURBED AREAS NOT AT FINAL GRADE SHALL BE TEMPORARILY VEGETATED WITHIN 10 WORKING DAYS.
15. UPON COMPLETION OF FINAL GRADING, PERMANENT VEGETATION SHALL BE ESTABLISHED FOR ALL DISTURBED
AREAS WITHIN 10 WORKING DAYS. SEEDING SHALL BE IN ACCORDANCE WITH EROSION CONTROL PLAN.
16. ALL DISTURBED AREAS SHALL BE PREPARED PRIOR TO PLANTING BY DISC OR SPRING -TOOTH CHISEL PLOW TO
MINIMUM DEPTH OF 12 INCHES. MULTIPLE PASSES SHALL BE MADE ACROSS PLANTING AREAS WITH THE IMPLEMENT
AND THE FINAL PASS SHALL FOLLOW TOPOGRAPHIC CONTOURS.
17. TREATMENT/REMOVAL OF INVASIVE SPECIES, PINES AND SWEET GUMS LESS THAN 6" DBH SHALL BE PERFORMED
THROUGHOUT THE PLANTED AREA.
18. SPECIES SHALL BE DISTRIBUTED SUCH THAT 3 TO 6 PLANTS OF THE SAME SPECIES ARE GROUPED TOGETHER.
19. TEMPORARY SEED MIX SHALL BE APPLIED AT A RATE OF 150 LBS/ACRE TO ALL DISTURBED AREAS WITH SLOPES
EQUAL TO OR STEEPER THAN 3:1.
20. RIPARIAN SEED MIX SHALL BE APPLIED TO ALL DISTURBED AREAS WITHIN THE FLOODPLAIN CORRIDOR AT A RATE OF
20 LBS/ACRE.
25. PERCENT COMPOSITION OF PLANTINGS MAY VARY BASED ON SPECIES AVAILABILITY AT TIME OF PLANTING
LEGEND
EXISTING CONTOURS
PROPOSED CONTOURS
LIMITS OF DISTURBANCE
REINFORCED RIFFLE
BOULDER WALL OR SILL
VEGETATED GEOLIFTS
BANK SLOPING
UPLAND GRADING
CLEAR & GRUB
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MATERIAL ESTIMATES:
PROJECT AREA: 0.9 AC
NET FILL: 700 CY
BOULDERS (3'x4'x2' OR LARGER): 300 EA
#57 STONE BACKFILL OR SIMILAR: 95 TN
EQUAL PARTS CLASS A, B, & 1: 155 TN
TEMPORARY SEEDING AREA: 0.8 AC
PERMANENT SEEDING AREA: 0.3 AC
RIPARIAN SEEDING AREA: 0.3 AC
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PERFORMED FOR THE PREPARATION OFB 158 PS SURVEY WAS
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THISTOPOGRAPHIC SURVEY
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J. THE PORTION OF THIS PROPERTY LYING ALONG SEVEN MILE CREEK IS IN ZONE O 1' y/ 1, CHARLES H. SMITH, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
AE" AND THE REGULATED FLOOf]WAY PER FLOOD INSURANCE RATE MAP FOR y Q SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER MY SUPERVISION. A
�-� ; = BOUNDARY SURVEY WAS NOT PERFORMED AS PART OF -THIS SURVEY.
pURHAM COUNTY, NORTHCAROLINA, MAP NUMBER 3720081400K, EFFECTIVE
DATE OCTOBER 19> 2018. FLOOD LIMITS SHOWN ARE FROM pURHAM COUNTY CIS _ 9 2: WITNESS MY ORIGINAL SIGNATURE, REGI5TRA7ION NUMBER AND SEAL.
MAPPING AND ARE APPROXIMATE. y '•O SUF :�` ` /'} GSC PROJECT 20015
91912020
S A TOPOGRAPHIC SURVEY
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4. HORIZONTAL CONTROL BASED ON NAD83 (2012); VERTICAL CONTROL BASED ON E 3
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BOULDER BANK PROTECTION STRUCTURE NOTES:
1. BOULDERS MUST BE AT LEAST 4.0'x2.5x2.0'.
2. DIG A TRENCH BELOW THE BED FOR FOOTER
BOULDERS. START AT BANK AND PLACE
FOOTER BOULDERS FIRST AND THE HEADER
BOULDERS. CONTINUE WITH STRUCTURE,
FOLLOWING ANGLE AND SLOPE SPECIFICATIONS.
3. INSTALL FILTER FABRIC BETWEEN REBUILT
STREAMBANK AND STONE BACKFILL. FILTER
FABRIC TO EXTEND THE ENTIRE LENGTH OF
BOULDER BANK PROTECTION.
4. USE WELL GRADED MIX OF SURGE AND #57
STONE BETWEEN STRUCTURE AND BACKFILLED
BANK.
5. STREAM BANK TO BE SLOPED UP TO DESIGN
GRADE ABOVE HEADER BOULDER.
6. FILTER FABRIC SHALL BE TRIMMED ALONG THE
TRANSITION BETWEEN THE STONE BACKFILL AND
THE REBUILT STREAM BANK SO THAT THE
FILTER FABRIC DOES NOT OVERLAP THE HEADER
BOULDERS.
D1
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NOT TO SCALE
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TOP OF
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STAKES SHALL BE
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TOE OF SLOPE
NOTES
1. STAKES SHALL BE CUT AND INSTALLED ON THE SAME DAY.
30" IN LENGTH 2. STAKES THAT HAVE BEEN SPLIT SHALL BE REJECTED AND
MINIMUM NOT USED FOR CONSTRUCTION.
3. STAKES SHALL BE INSTALLED WITH BUDS POINTING
UPWARD.
4. STAKES SHALL BE INSTALLED PERPENDICULAR TO BANK.
5. STAKES SHALL BE 0.5" - 2" INCHES IN DIAMETER AND 30" IN
LENGTH MINIMUM.
6. STAKES SHALL BE INSTALLED WITH APPROXIMATELY 3" OF
STAKE REMAINING ABOVE GROUND.
7. STAKE SPACING SHALL BE & ON CENTER.
LIVE STAKE DETAIL
LIVE STAKE
NOT TO SCALE
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RIFFLE STONE
TO TIE INTO CF
BANKS 0.5'
TOE OF SLOPE
(TYP;
TOP OF BAN
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TAIL OF RIFF
ELEVATION POINT
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HEAD OF RIFFLE
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NOT TO SCALE
TEMPORARY SILT FENCE NOTES:
BOULDER- \_2";QUAL
DEPTH OF
PARTS CLASS
A, B, AND 1 STONE
PROFILE A -A
TOP OF
K (TYP)
"� OF SLOPE
SECTION B-B
ULDER
MIX IN RECYCLED EXISTING
SUBSTRATE AS POSSIBLE
STEEL POST
WOVEN FILTER FABRIC
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1. FILTER FABRIC FENCE SHALL BE A MINIMUM OF 32" IN WIDTH AND SHALL HAVE A MINIMUM OF 6 LINE WIRES WITH 12" STAY SPACING.
2. WOVEN FILTER FABRIC TO BE USED WHERE SILT FENCE IS TO REMAIN FOR A PERIOD OF MORE THAN 30 DAYS.
3. STEEL POSTS SHALL BE 5-0" IN HEIGHT AND BE OF THE SELF -FASTENER ANGLE STEEL TYPE.
4. TURN SILT FENCE UP SLOPE AT ENDS.
5. DRAINAGE AREA CAN NOT BE GREATER THAN 1/4 ACRE PER 100 FT OF FENCE.
6. SLOPE LENGTHS CAN NOT EXCEED CRITERIA SHOWN IN TABLE 6.62A NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
7. DO NOT INSTALL SEDIMENT FENCE ACROSS STREAMS, DITCHES, WATERWAYS OR OTHER AREAS OF CONCENTRATED FLOW.
8. INSTALL POSTS WITH THE NIPPLES FACING AWAY FROM THE SILT FENCE.
9. ATTACH THE FABRIC TO EACH POST WITH THREE TIES WITH THE TOP TIE WITHIN 8" OF THE TOP OF THE FABRIC.
10. WRAP APPROXIMATELY 6 INCHES OF FABRIC AROUND THE END POSTS AND SECURE WITH 3 TIES.
11. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID JOINTS. WHEN JOINTS ARE NECESSARY,
SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST WITH 4 FEET MINIMUM OVERLAP TO THE NEXT POST.
TEMPORARY SILT FENCE MAINTENANCE NOTES:
1. INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
2. SHOULD THE FABRIC OF THE SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
3. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE.
TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT.
4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING
DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
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CROSS-SECTION
EROSION CONTROL
MATTING TO BE EXTENDED
TO TRENCH AT TOE OF SLOPE
PLAN VIEW
THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECO-STAKE OR APPROVED EQUAL WITH THE
FOLLOWING DIMENSIONS:
LEG LENGTH
11.00 IN (27.94 CM)
HEAD WIDTH
1.25 IN (3.18 CM)
HEAD THICKNESS
0.40 IN (1.02 CM)
LEG WIDTH
0.60 IN (1.52 CM) (TAPERED TO POINT)
LEG THICKNESS
0.40 IN (1.02 CM)
TOTAL LENGTH
12.00 IN (30.48 CM)
TYPICAL TRENCH STAKE
EROSION CONTROL MATTING NOTES
1. BANKS SHALL BE SEEDED (PERMANENT & TEMPORARY) PRIOR TO PLACEMENT OF
MATTING.
2. WOODEN STAKES SHALL BE PLACED IN A DIAMOND SHAPE PATTERN PER THE PLAN
VIEW.
3. TRENCH STAKES AND WOOD STAKES SHALL BE PLACED A MAXIMUM DISTANCE APART
OF 3'.
4. EROSION CONTROL MATTING (ECM) SHOULD BE USED TO AID PERMANENT VEGETATED
STABILIZATION OF SLOPES 2:1 OR AREAS SPECIFIED IN THE PLANS.
5. RCM SHOULD BE USED WHEN MULCH CANNOT BE ADEQUATELY TACKED AND WHERE
IMMEDIATE GROUND COVER IS REQUIRED TO PREVENT EROSION DAMAGE.
6. 6" MINIMUM OVERLAP IN THE HORIZONTAL
EROSION CONTROL MATTING MAINTENANCE NOTES
1. INSPECT ECM AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER)
RAINFALL EVENT. REPAIR IMMEDIATELY.
2. GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND EROSION MUST NOT
OCCUR BENEATH THE ECM.
3. ANY AREAS OF THE ECM THAT ARE DAMAGED OR NOT IN CLOSE CONTACT WITH THE
GROUND SHALL BE REPAIRED AND STAPLED.
4. IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL
BE FIXED AND THE ERODED AREA PROTECTED.
5. MONITOR AND REPAIR THE ECM AS NECESSARY UNTIL GROUND COVER IS
ESTABLISHED.
EROSION CONTROL MATTING
NOT TO SCALE
NOTES:
1. A STABILIZED ENTRANCE PAD OF 2"-3" COURSE AGGREGATE SHALL BE LOCATED WHERE TRAFFIC
WILL ENTER OR LEAVE THE CONSTRUCTION SITE ONTO A PUBLIC STREET OR EXISTING
GRAVEL/PAVED SURFACE.
2. FILTER FABRIC OR COMPACTED CRUSHER RUN STONE SHALL BE USED AS A BASE FOR THE
CONSTRUCTION ENTRANCE.
3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING
OF SEDIMENT ONTO PUBLIC STREETS OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP
DRESSING WITH ADDITIONAL STONE AS CONDITIONS WARRANT AND REPAIR OR CLEANOUT OF ANY
MEASURES USED TO TRAP SEDIMENT.
4. ANY SEDIMENT SPILLED, DROPPED, WASHED, OR TRACKED ONTO PUBLIC STREETS MUST BE
REMOVED IMMEDIATELY.
5. WHEN APPROPRIATE, WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A
PUBLIC STREET. WHEN WASHING IS REQUIRED, IT SHALL BE DONE IN AN AREA STABILIZED WITH
CRUSHED STONE WHICH DRAINS INTO AN APPROVED SEDIMENT BASIN SEE STD. NO. 30.11B.
6. NCDOT MAY REQUIRE A STANDARD COMMERCIAL DRIVEWAY (STD. 10.24 & 10.25) TO ACCESS THE
CONSTRUCTION SITE IF THE DRIVEWAY IS ON A THOROUGHFARE.
EXISTING GROUND
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50' MIN.
CONSTRUCTION ENTRANCE
NOT TO SCALE
PUBLIC STREET
TYPE II FILTER FABRIC
UNDER 2"-3" COURSE AGGREGATE
OPE GRADED AT
2H:1V OF LESS
EXCAVATED
1FT
x NN
MINIMUM 2.5'
UNDISTURBED EARTH --
EQUAL PARTS CLASS A, CLASS G
AND CLASS 1 RIP RAP, 2.0' DEPTH x BACKFILL
DEPTH*, BACKFILL VOIDS WITH ONSITE SOIL
0
DRAINAGE
SWALE FLOW
SCHEMATIC CROSS-SECTION
ION CONTROL MATTING (TYP.)
CUT E.C. MATTING AND INSTALL
PLANTS PER PLANTING PLAN
EROSION CONTROL MATTING AND BURLAP
CLOTH WRAPS AROUND LIFT AND COIR BLOCK
(SEE NOTE #5)
-COMPACTED AMENDED SOIL
OW LAYER INVERT* - TOP OF
STONE TOE BACKFILL
XISTING STREAMBED
BACKFILL TOE OF BANK
DEPTH*
VEGETATED GEOLIFT
NOT TO SCALE
DRAINAGE
SWALE
A' FLOW -
HEADER
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NK
FOOTER ROCK
EQUAL PARTS CLASS
A, B, AND 1 STONE
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OWER LIFT
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VEGETATED GEOLIFT STRUCTURE NOTES:
1. IF GEOLIFT IS NOT FRONTED BY A ROCK VANE, INCORPORATE A BOULDER TOE
WITHIN THE STONE BACKFILL. BOULDERS SHALL BE
NO LESS THAN 4.0'x3.0'x2.0'.
2. THE CHANNEL BASE FLOW OR WATER SURFACE ELEVATION (WSEL) WILL VARY
SEASONALLY AND MAY BE VERY LOW DURING TIMES OF DROUGHT. DURING
DROUGHT, AS DETERMINED BY THE ENGINEER, THE WSEL WILL BE CONSIDERED
TO BE EQUAL TO THE DOWNSTREAM GRADE CONTROL ELEVATION.
3. THE CONTRACTOR WILL BE RESPONSIBLE FOR CHANGES TO THE VEGETATED
GEOLIFT PLACEMENT IF IT IS DETERMINED BY THE ENGINEER THAT THE
VEGETATED GEOLIFT WAS NOT INSTALLED PROPERLY.
4. PLANTS SHALL MEET MATERIALS SPECIFICATIONS OUTLINED IN THE
SPECIAL PROVISIONS.
5. AT THE DISCRETION OF THE PROJECT ENGINEER, COIR BLOCKS SHALL BE USED
IN ALL LIFT LAYERS WITHIN THE GEOLIFT.
CONCRETE
SPLASH PAD
FILTER
PROFILE VIEW FORRI('.
BOULDER CASCADE TO SPLASH PAD
NOT TO SCALE
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TERING PUMP
SEQUENCE OF CONSTRUCTION FOR TYPICAL PUMP AROUND
1. INSTALL SPECIAL STILLING BASINS AT THE DOWNSTREAM END OF THE DESIGNATED PROJECT WORKING AREA.
2. THE CONTRACTOR WILL INSTALL THE PUMP AROUND PUMP AND THE TEMPORARY PIPING THAT WILL CONVEY
THE BASE FLOW FROM UPSTREAM OF THE WORK SITE.
3. INSTALL UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING OPERATIONS FOR STREAM DIVERSION.
4. INSTALL THE DOWNSTREAM IMPERVIOUS DIKE AND PUMPING APPARATUS IF NEEDED TO DEWATER THE
TEMPORARY
IMPERVIOUS DIKE (SEE FLEXIBLE
ENTRAPPED AREA. THE PUMP AND HOSE FOR THIS PURPOSE SHALL BE OF SUFFICIENT SIZE TO DEWATER
PROJECT SPECIAL HOSE
THE WORK AREA. THIS WATER WILL FLOW INTO A SPECIAL STILLING BASIN.
PROVISIONS) EXISTING
5. THE CONTRACTOR WILL PERFORM STREAM RESTORATION WORK IN ACCORDANCE WITH THE PLAN AND
CHANNEL
FOLLOWING THE GENERAL CONSTRUCTION SEQUENCE.
6. THE CONTRACTOR WILL EXCAVATE ANY ACCUMULATED SILT AND DEWATER BEFORE REMOVAL OF THE
IMPERVIOUS DIKE. REMOVE IMPERVIOUS DIKES, PUMPS, AND TEMPORARY FLEXIBLE HOSE/PIPING STARTING
WITH THE DOWNSTREAM DIKE FIRST.
7. ONCE THE WORKING AREA IS COMPLETED, REMOVE THE STILLING BASINS AND STABILIZE DISTURBED AREAS
WITH SEED AND MULCH.
TEMPORARY
NOTES:
PIPING
1. EXCAVATION SHALL BE PERFORMED IN ONLY DRY SECTIONS OF CHANNEL.
2. IMPERVIOUS DIKES SHOULD BE USED TO ISOLATE WORK AREAS FROM
STREAM FLOW.
3. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN BE
STABILIZED IN ONE WORKING DAY.
4. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR MILL
CREEK.
5. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR SALEM
CREEK.
6. THE PUMP AROUND PUMP SHOULD ADEQUATELY CONVEY X CFS FOR
UT-SALEM CREEK.
IMPERVIOUS 7. PROVIDE STABILZED OUTLET TO STREAM BANK.
DIKE (SEE SANDBAG/STONE
PUMP AROUND PUMP
PROJECT BAS
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WORKINGEA
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PROVISIONS) ---- FLOW
IMPERVIOUS SHEET
SPECIAL STILLING BASIN
IMPERVIOUS DIKE
EXISTING
GROUND 12"
1
MIN. CLASS A STONE
-TOP OF STREAM BANK
PROVIDE STABILIZED
FILTER FABRIC OUTLET TO STREAM
FOR DRAINAGE BANK
TYPE 2
(NON -WOVEN)
TYPICAL PUMP AROUND OPERATION
NOT TO SCALE
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GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCGO1 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization
Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HOW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HOW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain
will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide pending area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
NORTH CAROLI NA
A �J- V Environmental Quality
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
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STRUCTURE
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STRUCTURE
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at [east 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
1AZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (anc this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
event > 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDCs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of Stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5. Indication of visible sediment leaving the site
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part 111, Section C, Item (2)(a) of this permit.
(6) Ground After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit
The following items pertaining to the E&SC plan shall be kept on site and available for
inspection at all times during normal business hours.
Item to Document I Documentation Requirements
(a) Each E&SC measure has been installed
Initial and date each E&SC measure on a copy
and does not significantly deviate from the
of the approved E&SC plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan. This documentation is required upon the
initial installation of the E&SC measures or if
the E&SC measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
plan or complete, date and sign an inspection
plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC measures.
plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-N01 and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from Stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
EFFECTIVE: 04/01 / 19
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours, an oral or electronic notification.
deposition in a
• Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
• Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill cr release.
substances per Item
1(b)-(c) above
(c) Anticipated
• A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
. Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
• Within 7 calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect ofthe bypass.
(e) Noncompliance
• Within 24 hours, an oral or electronic notification.
with the conditions
• Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(I)(7)]
prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
NORTH CAROLINA
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NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19I
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Sheet N 1