HomeMy WebLinkAboutNCDOT Driveway Permit STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
JOSH STEIN J.R. “JOEY” HOPKINS
GOVERNOR SECRETARY
Mailing Address: NC DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS 5911 OLEANDER DRIVE, SUITE 101 WILMINGTON, NC 28403
04-11-03 COURIER
Telephone: 910-398-9100 Customer Service: 1-877-368-4968
Website: ncdot.gov
Location: 5911 OLEANDER DRIVE, SUITE 101 WILMINGTON, NC 28403
February 7, 2025
Archaea Energy Operating, LLC Eric Addessi 201 Helios Way, Floor 6
Houston, TX 77079
Subject: Permit D033-065-24-00060 for the driveway connection to New Hanover RNG Facility
located on US Highway 421 in New Hanover County.
Dear Applicant:
Your request for the subject development access has been approved per the attached plans dated August 2024 (sealed by Laura Wible, P.E. of Civil & Environmental Consultants, Inc.) and is
subject to the following conditions and the attached Driveway Permits Standard Conditions.
•This approval is for a driveway connection to New Hanover RNG Facility.
•This approval includes the installation of 42 LF of 15” HDPE pipe with PPES.
•Any temporary construction easements necessary for the approved driveway or drainage tie-ins within current or future State Transportation Improvement Program limits shall bededicated/ donated to the North Carolina Department of Transportation at no cost to theDepartment of Transportation.
•The applicant/property owner of the facility shall be responsible for performing routine
maintenance of the driveway (s) to ensure all applicable concrete median islands, traffic signsand pavement markings and reflectors remain in compliance as permitted.
•No obstructions shall be allowed in the location of the future right of way and/or anywherewithin the sight distance triangles. Including the 10x70 sight triangle and the sight distancelabeled on the attached plans.
•No vehicles shall be parked within the NCDOT right of way at any time.
•This permit does not provide approval for any construction outside of NCDOT right-of-way.Any construction planned or proposed outside NCDOT right-of-way shall require thedeveloper to obtain concurrence and/or right-of-way from subject property owner and/or localgovernment.
•This driveway is considered a commercial type driveway and so, shall be maintained by theproperty owner/developer/HOA/POA in accordance with NCDOT policy.
•Any additional future proposed development and/or redevelopment of this parcel/propertyshall require a revised driveway permit with NCDOT. Interconnectivity between adjoining
properties is recommended by NCDOT.
• A $33,153.74 performance and indemnity bond has been posted by Archaea Energy Operating, LLC (Bond No. 0258509) with the North Carolina Department of Transportation and is hereby obligated to cover roadway improvements under this driveway permit.
• The bond will be held for a minimum of one year from the initial inspection and acceptance date of the roadway work within the NCDOT right-of-way.
• The terms and conditions of this permit shall be incorporated into any lease or sales
agreement and all lots (outparcels), including all remaining undeveloped tracts within the subject development, shall be served internally.
• The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project prior to commencement of any construction activities within the NCDOT right-of-way.
• This driveway permit does not include any utility connections or approvals within the Right-of-Way. Such approvals are handled through a separate Encroachment Agreement.
• All improvements, i.e. roadway pavement widening, traffic control, pavement markings, etc., shall be constructed in accordance the 2024 NCDOT Standard Specifications for Roads and Structures and the 2024 NCDOT Roadway Standard Drawings.
• That in the case of noncompliance with the Policy on Street and Driveway access to NC Highways, NCDOT Roadway Design Manual, current Standard Specifications for Roads and
Structures, Standard Drawings and/or matched the existing roadway profile and cross section. The terms of this approval regarding the submitted plans by the Engineer of Record, the Department reserves the right to stop all work until the facility has been brought into compliance or removed from the right of way at no cost to the Department.
• Time Restriction – Peak Hours Restricted: No lane closures shall be allowed from 6:00am to 9:00am and from 4:00pm to 7:00pm and NO weekend lane closures. (HOURS SUBJECT TO CHANGE DUE TO TRAFFIC CONDITIONS – NIGHTTIME OPERATIONS WILL BE REQUIRED WHEN WARRANTED)
• No lane closures shall be allowed on State holidays and local events.
• Pre-Construction meetings are valid for 90 days, any work that begins more than 90 days after the pre-construction meeting may require an updated meeting and this is at the discretion of the district office.
• For pre-construction meetings, the permitted party or their contractor shall provide three (3) business days advance notice prior to construction activity within the NCDOT Right of Way, contact Chris Rhodes (ext-cerhodes1@ncdot.gov) or the district office at (910)398-9100 to set up this Pre-Construction meeting.
Sincerely,
Frank Mike Jr., Assistant District Engineer For Benjamin T. Hughes, P.E., District Engineer
BTH/fwm/cer ec:
Blake Jacobs, County Maintenance Engineer, NCDOT Robert Farrell, Senior Current Planner, New Hanover County Zackary Dickerson, Current Planner, New Hanover County Christine Bouffard, Zoning Compliance Official, New Hanover County Amy Doss, Current Planner, New Hanover County
D033-065-24-00060 - District 3
•This approval is for a driveway connection to New Hanover RNG Facility.
•This approval includes the installation of 42 LF of 15” HDPE pipe with PPES.
•No obstructions shall be allowed in the location of the future right of way and/or anywhere within the sight distance
triangles. Including the 10x70 sight triangle and the sight distance labeled on the attached plans.
•No vehicles shall be parked within the NCDOT right of way at any time.
•This permit does not provide approval for any construction outside of NCDOT right-of-way. Any construction planned
or proposed outside NCDOT right-of-way shall require the developer to obtain concurrence and/or right-of-way from
subject property owner and/or local government.
•This driveway is considered a commercial type driveway and so, shall be maintained by the property owner/developer/
HOA/POA in accordance with NCDOT policy.
•This driveway permit does not include any utility connections or approvals within the Right-of-Way. Such approvals are
handled through a separate Encroachment Agreement.
•Time Restriction – Peak Hours Restricted: No lane closures shall be allowed from 6:00am to 9:00am and from 4:00pm to
7:00pm and NO weekend lane closures. (HOURS SUBJECT TO CHANGE DUE TO TRAFFIC CONDITIONS –
NIGHTTIME OPERATIONS WILL BE REQUIRED WHEN WARRANTED)
D033-065-24-00060 - District 3
Frank Mike Jr., Assistant District Engineer
for Benjamin T. Hughes, P.E., District Engineer 02/07/2025
Division 3, District 3 Updated 07/26/2023.
The Standard Conditions in this document apply to this and all driveway permits issued by District 3.
Driveway Permit Standard Conditions
District Office Contact Information:
5911 Oleander Drive, Suite 101
Wilmington, NC 28403
(910) 398-9100
SC1 A Pre-Construction meeting must be held with the District Office prior to any work performed in the right of way and is only good for 90 days. Any work that will begin after 90 days of Pre-Construction meeting may require an updated pre-construction meeting. All locates should be completed prior to the scheduling of meeting.
SC2 The Permittee shall follow any and all revisions shown in RED on attached plan(s).
SC3 The driveway permit along with all terms and agreements shall be incorporated into any lease or sales agreement.
SC4 If the approved permit encroaches within the limits of an active construction project the Permittee will be required to coordinate with the NCDOT contractor as well as secure a hold harmless agreement prior to commencing work. If the approved permit encroaches within the limits of project in preconstruction, the Permittee will be required to coordinate with the Department’s Project Development Unit to ensure no conflicts are created with the installation.
SC5 A Performance and Indemnity Bond posted with the North Carolina Department of Transportation is hereby obligated to cover work under this driveway permit. This bond is only for work within NCDOT Right of Way.
SC6 An Initial Construction Inspection is required after the completion of the work. An Initial Inspection Report will be issued upon satisfactory completion of the work and begins the one-year warranty period. Contact the District Office to schedule an inspection by calling 910-398-9100 or email at Div3Dist3@ncdot.gov.
SC7 All bonds will be held for a minimum of one year from the time of the Initial Construction Inspection Acceptance. At the end of that time period, the bond may be released at the request of the applicant pending Final Inspection Acceptance.
SC8 A Final inspection is required after one year and prior to release of the bond. Contact the District Office three months prior to the end of the one-year bonding period for final inspection and creation of a list of deficiencies; this should provide enough time for corrective action prior to the end of one year. A Final Inspection Acceptance will be issued once the work has been completed and any deficiencies addressed.
SC9 All flagging operations within NCDOT right-of-way require qualified and trained Work Zone Flaggers. Qualified and trained Work Zone Traffic Control Supervisors will be required on significant projects. Training for this certification is provided by NCDOT approved training sources and by private entities that have been pre-approved. For more information, visit
https://connect.ncdot.gov/projects/WZTC/Pages/Training.aspx or contact, Karmen E. Miller, PE with the NCDOT Work Zone Traffic Control Unit at (919) 814-5043, or kemiller@ncdot.gov.
SC10 No lane closures shall be allowed on State Holidays (day of, day before, and day after) or during Local events.
SC11 No lane closures or impediment to traffic shall be allowed on weekends without prior written approval from the District Engineer.
SC12 One lane must always be open to traffic; only one lane closure will be allowed in each direction. Ingress and egress shall be maintained to all businesses and dwellings affected by the project. Special attention shall be paid to Police and Fire Stations, fire hydrants and Hospitals.
SC13 All roadway signs removed during project work shall be reinstalled immediately after completion of work. All equipment and materials shall be removed from the NCDOT right-of-way when not in use.
SC14 Any work requiring personnel or equipment within 5' of the travel lane on an undivided roadway, or 10' of the travel lane, on a divided roadway shall require a lane closure per the latest edition of the MUTCD and the NCDOT Standard Specifications. The more stringent standards shall apply.
SC15 Approval is only for work within NCDOT right-of-way. Any construction planned or proposed outside NCDOT right-of- way shall require the permittee to obtain concurrence and/or right-of-way from subject property owner and/or local government. This approval excludes area(s) within Railroad right-of-way and/or Municipal right-of-way which will require separate approval from
the Railroad, City or Town. Approval is with the understanding that NCDOT does not guarantee the right-of-way on any road.
SC16 All traffic control, asphalt mixes, structures, construction, workmanship and construction methods, and materials shall be in compliance with the most-recent versions of the following resources: Manual on Uniform Traffic Control Devices, Policy on Street and Driveway Access to North Carolina Highways, Policies and Procedures for Accommodating Utilities on Highway Rights
of Way, Subdivision Roads Minimum Construction Standards, NCDOT Standard Specifications for Roads
Division 3, District 3 Updated 07/26/2023.
and Structures, NCDOT Roadway Standard Drawings, AASHTO Policy on Geometric Design of Highways and Streets, NCDOT Asphalt Quality Management System manual, and the approved plans.
SC17 Prior to beginning work, it is the requirement of the Permittee to contact the appropriate Utility Companies involved and make arrangements to adjust or relocate any utilities that conflict with the proposed work.
SC18 NC 811 services DOES NOT provide locates of traffic signal cables. If the work is located within ½ mile of a signalized intersection, the Permittee shall contact NCDOT Traffic Services at (910) 341-2200 no less than one week prior to beginning work, for the location of all traffic signal and detection cables. Location is required prior to excavation. Cost to replace or repair NCDOT signs, signals or associated equipment shall be the responsibility of the Permittee.
SC19 If modifications to a traffic signal are required under this permit, a separate traffic agreement is required prior to work. Contact the Division Traffic Engineer or Deputy Division Traffic Engineer at (910) 341-2200.
SC20 If pavement markings are required under this permit, the permittee shall have the pavement markings pre-marked, inspected, and approved by NCDOT personnel prior to the placement of final pavement markings. Contact Traffic Services at (910) 341-2200 for pre-marking inspections or field changes.
SC21 All concrete or paved channelization islands shall have a 12-inch diameter round or square smooth wall hole drilled, cored, formed, or air-hammered to the subgrade and backfilled with soil placed a minimum of 10 feet from the nose of each end of the island (see Roadway Standard Drawing 904.50), or as directed by the engineer. All sign supports that are to be erected in existing or proposed concrete or paved channelization islands shall meet the same requirements. If necessary, contact Traffic Services at (910) 341-2200 to mark core locations.
SC22 Prior to beginning work, if the area of work is within a municipality limit, it is the responsibility of the Permittee to notify the municipal authorities.
SC23 The Permittee shall comply with all applicable Federal, State, and local statutes, rules, regulations, and ordinances that may be imposed by other governmental agencies. The Permittee shall obtain all necessary Federal, State, and local environmental permits, including but not limited to, those related to sediment control, storm water, wetlands, streams, endangered species, and historical sites.
SC24 All wiring and related work shall conform to the latest edition of the National Electrical Safety Code.
SC25 No alteration of the approved plan will be allowed without written approval by NCDOT. All design plan changes proposed by the contractor shall be prepared by the Engineer of Record and submitted by the Owner/Permittee to NCDOT for review to ensure that the Engineer and Owner participate in all construction changes. Field changes constructed without prior written approval by NCDOT will not be accepted by NCDOT during the inspection process.
SC26 An executed paper copy of the Driveway Permit and approved plans shall be present at the work site at all times while performing work. NCDOT reserves the right to stop all work unless evidence of approval can be shown. Additionally, NCDOT reserves the right to further limit, restrict, or suspend operations within the right-of-way.
SC27 Material shall NOT be unloaded or stockpiled on the roadway at any time without proper lane closure during the project. Work is not permitted when the shoulder material is wet or during adverse weather conditions.
SC28 All erosion control devices shall be placed as needed prior to disturbance and maintained throughout the project. All areas disturbed (shoulders, ditches, removed accesses, etc.) shall be graded and seeded within 15 calendar days with an approved NCDOT seed mixture. For disturbance of residential/commercial lawns, vegetation shall be replaced in like kind.
SC29 For disturbance of plants, vegetation, trees or plant beds in the NCDOT right-of-way, they shall be replaced with plants, vegetation or trees of like kind or similar shape. Contact the Division Roadside Environmental Engineer at 910- 259-4919.
SC30 The placement of curb and gutter is not allowed within shoulder sections of roadway (from the Right of Way to the edge of pavement).
SC31 It shall be the responsibility of the property owner or local municipality to maintain any proposed sidewalk that will be placed within the NCDOT Right of Way. It is the responsibility of the Permittee to place the sidewalk and wheelchair ramps per NCDOT standards and the latest edition of the Americans with Disabilities Act. This maintenance requires an encroachment agreement through the District Office.
SC32 It shall be unlawful to place any highway obstruction, including a driveway headwall, fence, rural mailbox, newspaper delivery box, or other roadside obstruction, so as to interfere with the traffic or maintenance of the roads and highways of the state highway system. See North Carolina Administrative Code 19A NCAC 2E.0404.
SC33 Fire Hydrant(s) shall be placed a maximum of 1 foot from the right-of-way line. (STD. 1515.02 in the NCDOT Roadway Standard Drawings).
Division 3, District 3 Updated 07/26/2023.
SC34 The Permittee shall comply with all OSHA requirements and provide a competent person on site to supervise excavation at all times.
SC35 The Permittee is responsible for any and all damage caused from project work within the right-of-way, including damage to drainage structures, pavement, vegetation, etc.
SC36 Any pavement damage, including settlement of the pavement or damage by equipment used to perform the project work, shall be re-surfaced to the satisfaction of the District Engineer or their representative. This may include the
removal of pavement and a 50’ mechanical overlay. All temporary and final pavement markings are the responsibility of the Permittee.
SC37 Centerline pavement markings shall be installed the same day resurfacing is accomplished. All other pavement markings shall be completed within five days of resurfacing.
SC38 All pipes placed within the NCDOT Right of Way shall be NCDOT approved materials. All joints shall be sealed with mortar or other NCDOT approved material. Backfill compaction shall meet NCDOT Standardized Testing Method.
SC39 Throughout the life of the project, the permittee shall maintain all drop-offs within the work zone such that they do not exceed the maximum of 2".
SC40 All removed curb, driveways, and shoulder areas shall be backfilled at a 6:1 slope or flatter at the end of the days' production.
SC41 Upon completion of construction, a certification memo that has been signed and sealed as appropriate under General Statute 89C-16 by a North Carolina Professional Engineer or Registered Land Surveyor shall be submitted to the District Engineer prior to opening the access connection for public use. Supporting documentation shall be attached certifying that improvements for the driveway access(s) meet the approved plan and NCDOT standards. All documentation shall be dated and initialed by the contractor. Verification will include inspection reports, testing reports, or any supporting documentation and calculations. Verification will cover, but is not limited to, subgrade, pavement structure, drainage, and traffic control items.
SC42 It shall be unlawful for any person, firm, or corporation to erect, maintain, or operate upon his own land, or the land of another, any farm gate or other gate which, when opened, will project over the right-of-way of any State highway. Proposed gates are required to be located far enough from the edge of pavement so as not to interfere with roadway traffic flow; minimum 100’ from the Right of Way. See North Carolina General Statute 136-94.
SC43 If this is a Temporary Driveway Permit then it is for temporary access only. All ingress/egress points for permanent access to this property shall be applied for per the Policy on Street and Driveway Access to North Carolina Highways. All Temporary Driveway Permits are for a 90-day period at which an extension will be required, or permanent request petitioned.
SC44 The applicant/property owner shall be responsible for performing routine maintenance of the driveway(s) to ensure all applicable concrete median islands, traffic signs, pavement markings and reflectors remain in compliance as permitted.
SC45 Sidewalk closures shall be installed, as necessary. Pedestrian traffic shall be detoured around these closures and shall be signed appropriately and in accordance with The American with Disabilities Act Accessibility Guidelines. The encroaching party must adhere to the guidelines for accommodating pedestrians in encroachment work zones as described in the NCDOT Pedestrian Work Zone Accommodations Training found at https://www.youtube.com/watch?v=AOuYa5IW3dg&feature=youtu.be
8.13.2024
Project # 336-406 NEW HANOVER RNG FACILITY September 24, 2024
NCDOT BOND ESTIMATE
ITEM QTY UNIT DESCRIPTION UNIT COST TOTAL
DIVISION 2 - EARTHWORK2001LSCLEARING AND GRUBBING 1,000.00$ 1,000.00$
235 200 CY EMBANKMENTS - ACCESS 6.50$ 1,300.00$
TOTAL 2,300.00$
DIVISION 3 - PIPE CULVERTS31050LF15" HDPE PIPE CULVERTS 33.00$ 1,650.00$
TOTAL 1,650.00$
DIVISION 6 - ASPHALT PAVEMENTS
520 60 TN AGGREGATE BASE COURSE (5", B25.0C)69.14$ 4,148.40$ 600 130 GAL PRIME COAT 1.93$ 250.90$
605 0 -ASPHALT TACK COATING - PAYMENT IN SECTION 610 -$ -$ 607 55 SY MILLING ASPHALT PAVEMENT 7.00$ 385.00$ 610 25 TN ASPHALT CONCRETE SURFACE COURSE, TYPE S9.5B (2" THICK)44.50$ 1,112.50$
610 40 TN ASPHALT CONCRETE INTERMEDIATE COURSE, TYPE I19.0C (3" THICK)61.89$ 2,475.60$
TOTAL 8,372.40$
DIVISION 8 - INCIDENTALS8001LSMOBILIZATION**5,000.00$ 5,000.00$
876 3 TN RIPRAP, CLASS B 55.36$ 166.08$
TOTAL 5,166.08$
DIVISION 11 - WORK ZONE TRAFFIC CONTROL111056SFWORK ZONE SIGNS (STATIONARY)7.15$ 400.40$
1115 1 EA FLASHING ARROW BOARDS 1,781.50$ 1,781.50$ 1120 1 EA PORTABLE CHANGEABLE MESSAGE SIGNS 5,753.23$ 5,753.23$
1130 45 EA DRUMS 44.45$ 2,000.25$
TOTAL 9,935.38$
DIVISION 16 - EROSION CONTROL AND ROADSIDE DEVELOPMENT160580LFTEMPORARY SILT FENCE 2.25$ 180.00$
1615 0.01 AC TEMPORARY MULCHING 227.44$ 2.96$ 1660 0.01 AC SEEDING AND MULCHING (PERMANENT)1,807.63$ 18.08$
TOTAL 201.03$
SUBTOTAL 27,624.89$
15% CONTINGENCY 4,143.73$
GRAND TOTAL*33,153.74$
Prepared By:RYAN M. JACOBSEN Checked By:JEFFREY D. HART
STATEMENTS OF PROBABLE CONSTRUCTION COST AND DETAILED COST ESTIMATES PREPARED BY THE ENGINEER REPRESENTS HIS BEST
JUDGEMENT AS A DESIGN PROFESSIONAL FAMILIAR WITH THE CONSTRUCTION INDUSTRY. IT IS RECOGNIZED, HOWEVER, THAT THE ENGINEER HAS NO CONTROL OVER THE COST OF LABOR, MATERIALS, OR EQUIPMENT, OVER THE CONTRACTOR'S METHODS OF DETERMINING BID PRICES, OR OVER COMPETITIVE BIDDING OR MARKET CONDITIONS, ACCORDINGLY, THE ENGINEER CANNOT AND DOES NOT GUARANTEE THAT BIDS WILL NOT
VARY FROM ANY STATEMENT OF PROBABLE CONSTRUCTION COST OR OTHER COST ESTIMATES PREPARED BY HIM.
* Prices listed above refer to 2020 Unit Prices from NCDOT, and Grand Total has been adjsuted for 4.36% inflation.
P:\330-000\336-406\-Cost Estimates\EOQ\336406-NCDOT Bond Cost Estimate_Rev 1_20240924.xls
REFERENCES
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NORTH
PROJECT LOCATION MAPPROJECT VICINITY MAP
VICINITY MAP OBTAINED FROM NORTH CAROLINA DEPARTMENT OF TRANSPORTATION, "NEW HANOVERCOUNTY MAP SET", ACCESSED 12/05/2023.
NORTH
USGS 7.5 MIN. TOPOGRAPHIC QUADRANGLES, LELAND, NORTH CAROLINA, PUBLISHED 1985, & CASTLE HAYNE, NORTH CAROLINA, PUBLISHED 1985.
PROJECT LOCATION MAP
EMERGENCY CONTACT INFORMATION
EMERGENCY RESPONDERS
NC DEQ - EMERGENCY NUMBER 1-800-858-0368
NEW HANOVER COUNTY EMERGENCY MANAGEMENT AGENCY 910-798-6900
NOVANT HELTH NEW HANOVER REGIONAL MEDICAL CENTER 910-667-7000
NEW HANOVER COUNTY SHERIFF'S OFFICE 910-798-4535
911 ADDRESS
5124 U.S. HIGHWAY 421 N, WILMINGTON, NC 28401
SITE
1
C000
CO
V
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R
S
H
E
E
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NEW HANOVERRNG FACILITY
5124 U.S. HIGHWAY 421 N
WILMINGTON, NORTH CAROLINA
NEW HANOVER COUNTY
PLAN REPRODUCTION NOTE
THE PLANS HAVE BEEN CREATED ON ANSI D (22"x34") SHEETS. FOR REDUCTIONS, REFER TO
GRAPHIC SCALE.
THE PLANS HAVE BEEN CREATED FOR FULL COLOR PLOTTING. ANY SET OF PLANS THAT IS NOT
PLOTTED IN FULL COLOR SHALL NOT BE CONSIDERED ADEQUATE FOR CONSTRUCTION
PURPOSES.
**WARNING**: INFORMATION MAY BE LOST IN COPYING AND/OR GRAY SCALE PLOTTING.
LIMITS OF DISTURBANCE AREA
RNG PAD AND FLARE
METER STATION
ACCESS ROAD
TOTAL LOD AREA
TOTAL WOODED ACRES DISTURBED
3.42 AC
SITE LOCATION (NAD83)
STRUCTURE NORTHING EASTING LATITUDE (DD)LONGITUDE (DD)
SITE ENTRANCE 209097.170903 2304442.895570 34.320267 -77.991758
CENTER OF RNG PAD 209145.421224 2304686.109672 34.320390 -77.990946
CIVIL ENGINEER OF RECORD
CIVIL & ENVIRONMENTAL CONSULTANTS, INC.
700 CHERRINGTON PARKWAY
MOON TOWNSHIP, PA 15108
PHONE: 412-429-2324
CONTACT: LAURA WIBLE, P.E.
PROJECT CONTACTS:
SURVEYOR
CIVIL & ENVIRONMENTAL CONSULTANTS, INC.
777 LOWNDES HILL ROAD BULDING 2, SUITE 100
GREENVILLE, SC 29607
PHONE: 252-561-6689
CONTACT: BRIAN L. SOUVA
ISSUED FOR PERMIT PLANS
APRIL 2024
REVISED: AUGUST 2024
FOR
ARCHAEA ENERGY, INC.
201 HELIOS WAY, FLOOR 6
HOUSTON, TX 77079
INFILTRATION BASIN
0.50 AC
0.23 AC
0.87 AC
5.02 AC
3.94 AC
NOTICE REQUIRED:
SITE
UTILITY CONTACTS
DUKE TRANSMISSION (GAS)
1 TURNER ST,
RALEIGH, NC 27607
PHONE: 800-777-9898
CAPE FEAR PUBLIC UTILITY AUTHORITY
(WATER & SEWER)
235 GOVERNMENT CENTER DR,
WILMINGTON, NC 28403
PHONE: 910-332-6550
DUKE ENERGY PROGRESS (ELECTRICAL)
1451 MILITARY CUTOFF RD,
WILMINGTON, NC 28403
PHONE: 800-452-2777
AT&T/BELL SOUTH (OVERHEAD &
COMMUNICATIONS)
625 OLD FAYETTEVILLE RD,
CHAPEL HILL, NC 27516
PHONE: 919-851-0755
SENTHIL NEW HANOVER ENVIRONMENTAL
HEALTH
230 GOVERNMENT CENTER DRIVE SUITE 140,
WILMINGTON, NC 28403
PHONE: 910-798-6667
Designer's Plan Certification
I hereby certify that this plan has been prepared in accordance with the latest New Hanover
County Ordinances and Stormwater Design Manual.
Signature:
Printed Name and Title:
Date:
Registration Number:
Property Owner/Applicant Plan Certification
I (We) hereby certify that I (we) am (are) the current owner of the property and that upon
receipt of the Stormwater Permit, any clearing, grading, construction, or development, will be
performed in accordance with the plan and that the applicable ordinances and rules of New
Hanover County, the State of North Carolina and the Federal Government and its agencies
which are hereby made part of this plan. As the owner, I (we) accept full responsibility for the
construction and operation and maintenance of the proposed facilities. I (We) will not attempt
to transfer this responsibility without the written authorization of New Hanover County.
Signature:
Printed Name and Title:
Date:
SITE WORK GENERAL NOTES
CONSTRUCTION SEQUENCE
CAPE FEAR PUBLIC UTILITY AUTHORITY STANDARD NOTES
8 34567 12
8 34567 12
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REFERENCES
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REFERENCES
8 34567 12
8 34567 12
A
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PROJECT VICINITY MAP
SITE
NORTH
SITE DATA TABULATION BUILDING DATA
DIMENSIONAL REQUIREMENTS
PARKING STANDARDS
IMPERVIOUS AREA
KEY NOTES
A
C600
A
C600
B C6
0
0
B C6
0
0
REFERENCES
NEW HANOVER RNG FACILITY CONTROL POINT TABLE
POINT # NORTHING EASTING ELEVATION DESCRIPTION
NEW HANOVER RNG FACILITY EARTHWORK VOLUMES
DESCRIPTION CUT (CY)FILL (CY)NET (CY)
TOTAL*5,800 10,500 -4,700
8 34567 12
8 34567 12
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PROJECT VICINITY MAP
SITE
DRAINAGE NOTES:
NORTH
GRADING NOTES:RNG PAD NOTE:KEY NOTES
COMPOST SOCK NO.SIZE
COMPOST FILTER SOCK
8"2 3 10
11
4 5 6 7 8 91
12 13 14 15 16 17 12"
WATTLE
NEW HANOVER RNG COMPOST SOCK SLOPES - EXISTING CONDITIONS
SOCK NO.SLOPE
(%)
SLOPE
LENGTH (FT)
ALLOWABLE
SLOPE LENGTH (FT)
SLOPE
REMAINING (FT)
SLOPE
REMAINING (%)
NEW HANOVER RNG COMPOST SOCK SLOPES - PROPOSED CONDITIONS
SOCK NO.SLOPE
(%)
SLOPE
LENGTH (FT)
ALLOWABLE
SLOPE LENGTH (FT)
SLOPE
REMAINING (FT)
SLOPE
REMAINING (%)
SITE ENTRANCE PROFILE
DRIVE PIPE PROFILE
8 34567 12
8 34567 12
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C601
13
LEGEND
NORTH
SITE ACCES PLAN
VEHICLE TURNING MOVEMENTS
WB-50 RIGHT IN, RIGHT OUT
VEHICLE TURNING MOVEMENTS
WB-50 RIGHT IN, RIGHT OUT
NORTH
NORTH
WB-50 DETAIL
HEAVY DUTY ASPHALT PAVEMENT SECTION
8 34567 12
8 34567 12
A
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14
NORTH
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NORTH
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8 34567 12
8 34567 12
A
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C603
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8 34567 12
8 34567 12
A
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MA
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A
16
C604
8 34567 12
8 34567 12
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17
C605
DETAIL 1
TEMPORARY SEEDING
·
·
·
·
·
DETAIL 2
PERMANENT SEEDING
DETAIL 7
HARDWARE CLOTH AND GRAVEL INLET PROTECTION
N.T.S.
DETAIL 4
DUST CONTROL
N.T.S.
DETAIL 5
SURFACE ROUGHENING
N.T.S.
DETAIL 6
STABILIZED CONSTRUCTION ENTRANCE
N.T.S.
DETAIL 3
MULCHING
N.T.S.
Construction:1.Clear the entrance and exit area of all vegetation, roots, and other objectionable
material and properly grade it.
2.Place the gravel to the specific grade and dimensions shown on the plans, and
smooth it.3.Provide drainage to carry water to a sediment trap or other suitable outlet.
4.Use geotextile fabrics in order to improve stability of the foundation in locations
subject to seepage or high water table.
Maintenance:1.Inspect all measures at least weekly and after each rainfall of 1.0 inch or greater.Make any required repairs immediately.
2.Maintain the gravel pad in a condition to prevent mud or sediment from leaving the
construction site. This may require periodic topdressing with 2-inch stone.
3.Sediment on roadways is to be removed immediately by broom and shovel, either by
manual or mechanical means, and not to be washed off where it has the potential to
enter a stream, drainage way or storm drain system.
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NORTH CAROLINADepartment of Environmental Quality
GEOTEXTILE FABRICTO BE USED IN LOCATIONSSUBJECT TO SEEPAGE ORHIGH WATER TABLE.
Effective Date: 9/1/2023In accordance with the 2013Design Manual Updates
8 34567 12
8 34567 12
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PLAN
DETAIL 9
BLOCK AND GRAVEL STONE INLET PROTECTION
N.T.S.
DETAIL 10
SILT FENCE
N.T.S.
DETAIL 11
STANDARD CHECK DAM
N.T.S.
DETAIL 12
GRASS LINED CHANNEL
N.T.S.
DETAIL 13
COMPOST SOCK
N.T.S.
DETAIL 8
PIPE OUTLET PROTECTION
N.T.S.
PROPOSED CHANNEL TABLE
CHANNELNAME W1 (FT.)MIN. DEPTH(FT.)W2 (FT.) LENGTH (FT.)
BEGININVERT END INVERT SLOPE (FT./FT.)CHANNELLINER LOCATION
CHANNEL 1 2.00 2.00 12.00 103.00 20.46 19.95 0.005 SC150 * METER STATION
CHANNEL 2 2.00 2.00 12.00 418.00 19.95 16.00 0.009 SC150 *
NORTH-WEST SIDE OFPAD
CHANNEL 3 35.00 2.00 45.00 172.00 16.00 14.31 0.010 SC150 *
NORTH-EAST SIDE OFPAD
CHANNEL 4 10.00 2.00 20.00 231.00 14.42 13.00 0.006 SC150 *
SOUTH-EAST OF PADTO INFILTRATIONBASIN
2:1 SLOPE GRAVEL FILTER
DEWATERING CONCRETE BLOCKS
1' MIN.2' MAX.
TEMPORARY SEDIMENT POOL WIRE SCREEN DEWATERING
DROP INLETWITH GRATE
NOTES:1.Lay one block, on each side of the structure, on its
side in the bottom row to allow pool drainage. The
foundation should be excavated at least 2 inchesbelow the crest of the storm drain. Place thebottom row of blocks against the edge of the storm
drain for lateral support and to avoid washoutswhen overflow occurs. If needed, give lateral
support to subsequent rows by placing 2 inch x 4
inch wood studs through block openings.
2.Carefully fit hardware cloth or comparable wire
mesh with 1/2-inch openings over all block
openings to hold gravel in place.
3.Use clean gravel 1/2 to 3/4 inch in diameter, placed
2 inches below the top of the block on a 2:1 slope
or flatter and smooth it to an even grade. NCDOT
#57 washed stone is recommended.
SEDIMENT
MAINTENANCE:1.Inspect all measures at least weekly and after everyrainfall of 1.0 inch or greater; repair immediately.
2.Remove sediment as necessary to provideadequate storage volume for subsequent rains.
3.When the contributing drainage area has beenadequately stabilized, remove all materials and anyunstable soil, and either salvage or dispose of itproperly. Bring the disturbed area to proper grade,then smooth and compact before stabilizing.
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual Updates
Notes:1.Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics.2.Ensure that the height of the sediment fence does not exceed 24 inches above the ground. (Higher fences mayimpound volumes of water sufficient to cause failure of the structure)
3.Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints arenecessary, securely fasten the filter cloth only at a support post with 4 feet minimum overlap to the next post.4.Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts. Extend thewire mesh support to the bottom of the trench. Fasten the wire reinforcement, then fabric on the upslope side of thefence post. Wire or plastic zip ties should have a minimum 50 pound tensile strength.5.When a wire mesh support fence is used, space posts a maximum of 8 feet apart. Supports should be driven securelyinto the ground a minimum of 24 inches. Wire mesh should be a minimum 14-gauge with 6 inch mesh spacing.6.Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence. Securely fasten thefilter fabric directly to posts. Wire or plastic zip ties should have a minimum of 50 pound tensile strength.7.Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope
from the barrier.8.Place 12 inches of fabric along the bottom and side of the trench.9.Backfill the trench with soil placed over the filter fabric and compact. Thorough compaction of the backfill is critical tosilt fence performance.10.Do not attach filter fabric to existing trees.11.Do not place across ditches, streams, or any other areas of concentrated flow.
Maintenance:1.Inspect all measures at least weekly and after each rainfall of 1.0inch or greater. Make any required repairs immediately.2.Should the fabric of a sediment fence collapse, tear, decompose,or become ineffective, replace it promptly.3.Remove sediment deposits as necessary to provide adequatestorage volume for the next rain and reduce pressure on thefence. Take care to avoid undermining the fence during cleanouts.
4.Remove all fencing materials and unstable sediment deposits andbring the area to grade and stabilize it after the contributingdrainage area has been properly stabilized.
STEEL POST
8' MAX. STANDARD STRENGTH FABRIC WITH WIRE FENCE6' MAX. EXTRA STRENGTH FABRIC WITHOUT WIRE FENCE
18-24"
8" DOWN & 4" FORWARD
ALONG THE TRENCH24"
WIRE FENCE
FILTER FABRIC
PLASTIC ORWIRE TIES 24"
8" MIN.
4" MIN.
BACKFILL TRENCHAND COMPACTTHOROUGHLY
UPSLOPE
WIRE FENCE FILTER FABRIC
STEEL POST
PLASTIC ORWIRE
CROSS SECTION VIEW
Max. Slope Length and Slope for Which
Sediment Fence is Applicable
Slope Slope Length (ft) Max. Area (ft2)
<2%100 10,000
2 to 5%75 7,500
5 to 10%50 5,000
10 to 20%25 2,500
>20%15 1,500
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual UpdatesSEDIMENT FENCE
T
T
W2
e
e
d
W1
d
d
PARABOLIC CHANNEL CROSS SECTION
TRIANGULAR "V" CHANNEL CROSS SECTION
TRAPEZOIDAL CHANNEL CROSS SECTION
X-Section Area (A) = Zd2Top Width (T) = 2dz
Z=ed
X-Section Area (A) =23 Td
Top Width (T) =1.5 Ad
Z=ed
X-Section Area (A) = W1d + Zd2Top Width (W2) = W1 + 2dz
NOTES:1.At a minimum, grass-lined channels should carry peakrunoff from the 10-year storm without eroding. Increase thecapacity according to the potential damage if flood hazard
exists.2.If design velocity of the channel to be vegetated by seedingexceeds 2 feet per second, a temporary channel liner isrequired.
3.Channel side slopes should be 3:1 or flatter to aid in the
establishment of vegetation and for maintenance. V-shapedchannels along roadways should have side slopes of 6:1 orflatter for safety.
4.Remove all trees, brush, stumps, and other objectionable
material from the foundation area, and dispose of properly.
5.Excavate the channel, and shape it to neat lines anddimensions shown on the plans plus a 0.2 foot overcutaround the channel perimeter to allow for bulking duringseedbed preparations and sod buildup.
6.Remove and properly dispose of all excess soil so that thesurface water may enter the channel freely.
7.The procedure used to establish grass in the channel willdepend upon the severity of the conditions and selection of
species. Protect the channel with mulch or a temporary linersufficient to withstand anticipated velocities during theestablishment period.
Maintenance:1.During the establishment period, check grass-lined channelsafter every rainfall.
2.After grass is established, periodically check the channel.
check after heavy rainfall events and immediately make anynecessary repairs.
3.Check the channel outlet and all road crossings for bankstability and evidence of piping or scour holes.
4.Remove all significant sediment accumulations to maintainthe designed carrying capacity.
5.Keep grass in a healthy, vigorous condition at all times.
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual UpdatesGRASS-LINED CHANNELS
SILT SOCK / WATTLE FOR PERIMETER AND INLET PROTECTION
NOTE:
1.Other materials providing equivalent protectionagainst erosive velocities may be substituted forcompost use in silt socks or wattles.
2.Fill silt sock/wattle netting uniformly with compostto the desired length such that logs do not deform.
3.Silt sock/Wattle(s) should be installed parallel to
and a minimum of 10 feet beyond the toe of a
graded slope. Silt Sock/Wattle(s) located belowflat areas should be located at the edge of the
land disturbance. The ends of the siltsock/wattle(s) should be turned slightly upslope toprevent runoff from going around the end of thesilt sock/wattle(s).
4. Oak or other durable hardwood stakes with a 2
inch x 2 inch cross section should be drivenvertically plumb, through the center of the siltsock/wattle. Stakes should be placed at a
maximum interval of 4 feet or a maximum intervalof 8 feet if the silt sock/wattle is placed in a 4 inch
trench.5.In the event staking is not possible (ie. when
socks/wattles are used on pavement) heavy
concrete blocks shall be used behind the siltsock/wattle to hold it in place during runoff events.
COMPOST SOCK INITIAL FLOW RATES
Compost SockDesign Diameter 8 Inch(200 nm)12 Inch(300 nm)18 Inch(450 nm)24 Inch(600 nm)32 Inch(750 nm)
Maximum SlopeLength (<2%)600 Feet(183 m)750 Feet(229 m)1,000 Feet(305 m)1,300 Feet(396 m)1,650 Feet(500 m)
Hydraulic FlowThrough Rate 7.5 gpm/ft(94 l/m/m)11.3 gpm/ft(141 l/m/m)15.0 gpm/ft(188 l/m/m)22.5 gpm/ft(281 l/m/m)30.0 gpm/ft(374 l/m/m)
MAINTENANCE:
1.Inspect all measures at least weekly and after each
rainfall of 1.0 inch or greater.
2.Remove accumulated sediment and any debris as
needed to allow for adequate flow.
3.Silt sock/Wattle must be replaced if clogged or torn.
4.If ponding becomes excessive, the silt sock/wattlemay need to be replaced with a larger diameter or a
different measure.
5.Reinstall if damaged or dislodged.
6.Silt socks/wattles shall be inspected until landdisturbance is compete and the area above themeasure has been permanently stabilized.
WOOD MULCH OR COMPOST
TO 1/2 HEIGHT OF LOG
4' MAX.
2" x 2"STAKES
SILT SOCK/ WATTLE
AREA TO BEPROTECTED
3"
12" MIN.
FLOW
FLO
W
SECTION
UNTRENCHED INSTALLATION
TRENCH INTOGROUND 4" MIN.
8' MAX.
2" x 2"STAKES
SILT SOCK/ WATTLE
AREA TO BEPROTECTED
3"
12" MIN.
FLOW
FLO
W
SECTION
ENTRENCHED INSTALLATION*
*THIS APPLICATION MAY NOT BE USED WITH COMPOST
SOCKS SMALLER THAN 12".
WORK AREA
AREA TO BE
PROTECTED
SILT SOCK/WATTLE
MULCH OR COMPOSTFOR UNTRENCHEDSOCKS
ISOMETRIC VIEW
SHEET FLOW
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual Updates
A BL
L= THE DISTANCE SUCH THAT POINTS AAND B ARE OF EQUAL ELEVATION
FILTER CLOTH
1.5' MIN.
9" MIN.
12" OF NCDOT #5 OR#57 WASHED STONE
CLASS B RIPRAP
FILTER CLOTH
PLAN VIEW
CROSS-SECTION VIEW
NOTES:1. Place stone on a filter fabric foundation.2.The center stone section must be at least 9 inches below naturalground level where the dam abuts the channel banks.
3.Extend stone at least 1.5 feet beyond the ditch bank to keep waterfrom cutting around the ends of the check dam.
4.Set spacing between dams to assure that the elevation at the top ofthe lower dam is the same as the toe elevation of the upper dam.5.Protect the channel after the lowest check dam from heavy flow thatcould cause erosion.6.Make sure the channel reach above the most upstream dam is
stable.
7.Ensure that other areas of the channel, such as culvert entrancesbelow the check dams, are not subject to damage or blockage fromdisplaced stones.
8.Riprap and filter fabric should be keyed in to prevent under cutting.
9.Ends of check dams may need to be turned uphill to prevent bypass
and better conform to site conditions.10.Do not place check dams in intermittent or perennial streams.
MAINTENANCE:1.Inspect check dams and channels at least weekly and after each rainfall of 1.0inch or greater. Clean out sediment, straw, limbs or other debris that could clog
the channel when needed.2.Anticipate submergence and deposition above the check dam and erosion fromhigh flows around the edges of the dam. Correct all damage immediately. Ifsignificant erosion occurs between dams, additional measures can be takensuch as, installing a protective riprap liner in that portion of the channel.
3.Remove sediment accumulated behind the dams as needed to prevent damageto channel vegetation, allow the channel to drain through the stone check dam,and prevent large flows from carrying sediment over the dam. Add stones to thedams as needed to maintain design height and cross section.
2' MAX AT
CENTER
4'-6'
1.5'
2:1
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual UpdatesCHECK DAM
8 34567 12
8 34567 12
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DETAIL 14
PIPE TRENCH TYPICAL DETAIL
N.T.S.
DETAIL 16
TYPICAL RETAINING WALL
N.T.S.
2"
12
"
VARIES
DETAIL 18
RNG/FLARE PAD SURFACING
N.T.S.
DETAIL 19
ALL WEATHER ACCESS ROAD SECTION
N.T.S.
12
"
2"
PROPOSED CULVERT TABLE
CULVERT ID.DIA(IN.)LENGTH(FT.)
INLETELEVATION(FT.)
OUTLETELEVATION(FT.)
SLOPE
(FT./FT.)MATERIAL LOCATION
2 -3 18.00 163.00 18.30 17.48 0.010 HDPE
STRUCTURE 3TO STRUCTURE2
1 -2 24.00 321.00 17.48 15.08 0.010 HDPE
STRUCTURE 2TO STRUCTURE1
4 -5 18.00 107.00 18.30 17.77 0.005 HDPE
STRUCTURE 5TO STRUCTURE4
1 -4 24.00 64.00 17.77 17.29 0.010 HDPE
STRUCTURE 4TO STRUCTURE1
0 -1 24.00 66.00 15.08 14.42 0.010 HDPE
STRUCTURE 1TO CHANNEL 4
DC-1 15.00 42.00 15.82 14.99 0.020 HDPE
ENTRANCEAPRON
DETAIL 17
DANDY SACK INLET PROTECTION
N.T.S.
6"
DETAIL 15
DROP INLET
N.T.S.
SECTION X-X SECTION Y-Y
PLAN DOWEL
PROPOSED STRUCTURES
STRUCTURE SIZE (IN.)RIM ELEV.(FT.)DEPTH (FT.) INV. IN (FT.)
INV. OUT(FT.)GRATE TYPE
1 36 X 24 20.55 5.97
17.29 &15.08 15.08 STD. 840.16FRAME & GATE
2 36 X 24 20.55 3.57 17.48 17.48
STD. 840.16FRAME & GATE
3 36 X 24 20.55 2.75 N/A 18.30 STD. 840.16FRAME & GATE
4 36 X 24 20.55 3.28 17.77 17.77
STD. 840.16FRAME & GATE
5 36 X 24 20.55 2.75 N/A 18.30 STD. 840.16FRAME & GATE
SECTION G-G
PLAN OF GRATING
PLAN OF FRAM
SECTION F-FSECTION E-E
SECTION H-H
8 34567 12
8 34567 12
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DETAIL 19
INFILTRATION BASIN
N.T.S.
DETAIL 20
INFILTRATION BASIN SPILLWAY
N.T.S.
DETAIL 22
WATTLE CHECK
N.T.S.
DETAIL 21
STRUCTURAL CANTILEVER SLIDE GATE
AND KNOX BOX
N.T.S.
Spacing Between Socks / Wattles (Feet)
Channel Slope (%)8-inch Diameter Sock 12-inch Diameter Sock
1 67 100
2 33 50
3 22 33
4 17 25
NOTES:5 13 20
1.Other materials providing equivalent protection against erosive velocities may be substituted for
compost use in silt socks or wattles.
2.Fill silt sock/wattle netting uniformly to the desired length such that logs do not deform.3.Use 24 inch long wooden stakes with a 2 inch x 2 inch nominal cross section.
4.Install silt sock/wattle(s) to a height on slope so flow will not wash around silt sock/wattle and
scour slopes, or as directed.
5.Install a minimum of two up-slope stakes and four down-slope stakes at an angle to wedge silt
sock/wattle to ground at bottom ditch. Use staples to secure silt sock/wattle to the ground to
prevent undermining.
6.The use of flocculants such as Polyacrylamide (PAM) is recommended. Apply flocculants on top
of sock/wattle and to matting on either side of sock/wattle according to manufacturer
recommended rates. Reapply after each 1.0 inch rainfall.
MAINTENANCE:1.Inspect all measures weekly and after each rainfall of 1.0 inch or greater. Remove accumulated
sediment and any debris.
2.Silt sock/Wattle(s) must be replaced if clogged or torn.
3.If ponding becomes excessive, the silt sock/wattle may need to be replaced with a larger diameter
or a different measure.4.Reinstall if damaged or dislodged.
5.Silt socks/Wattles shall be inspected until land disturbance is compete and the area above the
measure is permanently stabilized.
MATTING
STAKES ANGLE STAKESTO WEDGE WATTLEONTO GROUND
DATE:PAGE:
NORTH CAROLINADepartment of Environmental Quality
Effective Date: 9/1/2023In accordance with the 2013Design Manual UpdatesSILT SOCK / WATTLE FOR CHECK DAM
TRAPEZOIDAL DITCH SECTION VIEW
MATTING
MIN. 2 STAKES ON UPSLOPE MIN. 4 STAKES ON DOWNSLOPE
V-DITCH SECTION VIEW
MATTING
MIN. 2 STAKES ON UPSLOPE MIN. 4 STAKES ON DOWNSLOPE
MATTING
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MIN. 4 STAKES ON
DOWNSLOPEMIN. 2 STAKESON UPLSOPE
DITCH SLOPE
FLOW FLOW
SILT SOCK/WATTLE
PLAN VIEW
ISOMETRIC VIEW
MATTING
DOWNSLOPE
TOP OF BANK
PLAN VIEW
GATE OPERATOR FOUNDATION DETAIL
SECTION A-A
PLAN
ELEVATION
SINGLE MOTORIZED STEEL CANTILEVERED SLIDE GATE
POST TOP
EXTERNAL ROLLERS (TYP.)
1.90" O.D. VERTICAL
BRACE (TYP.)
KNOX BOX
8 34567 12
8 34567 12
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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 constructionactivity being considered compliant with the Ground Stabilization and Materials Handlingsections of the NCG01 Construction General Permit (Sections E and F, respectively). Thepermittee shall comply with the Erosion and Sediment Control plan approved by the delegatedauthority having jurisdiction. All details and specifications shown on this sheet may not applydepending on site conditions and the delegated authority having jurisdiction.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of thetechniques in the table below:
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 Stormwater before discharging offsite.
5.Store flocculants in leak-proof containers that are kept under storm-resistant cover or
surrounded by secondary containment structures.
HAZARDOUS 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.
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 theproject.
4.Collect all spent fluids, store in separate containers and properly dispose as hazardouswaste (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 toa 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, trashreceptacle) on site to contain construction and domestic wastes.
3.Locate waste containers at least 50 feet away from storm drain inlets and surface watersunless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff fromupland 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 providesecondary 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 ifcontainers 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 watersunless 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 fromconstruction sites.
PORTABLE TOILETS
1.Install portable toilets on level ground, at least 50 feet away from storm drains, streamsor wetlands unless there is no alternative reasonably available. If 50 foot offset is notattainable, provide relocation of portable toilet behind silt fence or place on a gravel padand surround with sand bags.
2.Provide staking or anchoring of portable toilets during periods of high winds or in highfoot traffic areas.
3.Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize alicensed sanitary waste hauler to remove leaking portable toilets and replace withproperly operating unit.
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 accidentalpoisoning.
3.Do not store herbicides, pesticides and rodenticides in areas where flooding is possibleor where they may spill or leak into wells, stormwater drains, ground water or surfacewater. If a spill occurs, clean area immediately.
4.Do not stockpile these materials onsite.
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 andstate solid waste regulations and at an approved facility.
3.Manage washout from mortar mixers in accordance with the above item and in additionplace 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 analternate 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 oftemporary 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 ordischarged to the storm drain system or receiving surface waters. Liquid waste must bepumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless itcan be shown that no other alternatives are reasonably available. At a minimum, installprotection 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 stoneentrance pad in front of the washout. Additional controls may be required by theapproving 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 limitoverflow events. Replace the tarp, sand bags or other temporary structuralcomponents when no longer functional. When utilizing alternative or proprietaryproducts, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of in anapproved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused byremoval of washout.
EARTHEN STOCKPILE MANAGEMENT
1.Show stockpile locations on plans. Locate earthen-material stockpile areas at least 50feet away from storm drain inlets, sediment basins, perimeter sediment controls andsurface 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 fivefeet 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 withthe approved plan and any additional requirements. Soil stabilization is defined asvegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
A
BELOW GRADE WASHOUT STRUCTURE
1:1SIDE SLOPE(TYP.)
10 MILPLASTICLINING
3'-0"
MIN.& X'MAX.
SECTION A-A NOT TO SCALE
ABOVE GRADE WASHOUT STRUCTURENOT TO SCALE
SECTION B-B
HIGHCOHESIVE &LOW FILTRATIONSOIL BERM
8"
6"
2'
HIGHCOHESIVE &LOW FILTRATION1:1 SIDE SOIL BERMSLOPE(TYP.)
10 MILPLASTIC LINING
B
B
3'-0" MIN.&X' MAX.
A
SANDBAGS (TYP.)OR STAPLES
SANDBAGS (TYP.)
OR STAPLES
SANDBAGS (TYP.)OR STAPLES
SANDBAGS (TYP.)OR STAPLES
NOTES:1. ACTUAL LOCATION DETERMINEDIN FIELD
2. THE CONCRETE WASHOUTSTRUCTURES SHALL BEMAINTAINED WHEN THE LIQUIDAND/OR SOLID REACHES 75% OFTHE STRUCTURES CAPACITY.
3.CONCRETE WASHOUTSTRUCTURE NEEDS TO BE CLEARYMARKED WITH SIGNAGE NOTINGDEVICE.
NOTES:1. ACTUAL LOCATION DETERMINEDIN FIELD
2. THE CONCRETE WASHOUTSTRUCTURES SHALL BE MAINTAINEDWHEN THE LIQUID AND/OR SOLIDREACHES 75% OF THE STRUCTURESCAPACITY TO PROVIDE ADEQUATEHOLDING CAPACITY WITH A MINIMUM12 INCHES OF FREEBOARD.
3.CONCRETE WASHOUT STRUCTURENEEDS TO BE CLEARY MARKED WITHSIGNAGE NOTING DEVICE.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
CONCRETEWASHOUT
CLEARLY MARKEDSIGNAGENOTING DEVICE(18"X24" MIN.)
SILTFENCE
10' MIN
10' MIN
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Note: After the permanent cessation of construction activities, any areas with temporaryground stabilization shall be converted to permanent ground stabilization as soon aspracticable 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 stableagainst accelerated erosion until permanent ground stabilization is achieved.
Site Area Description Timeframe variations
-7 days for perimeter dikes, swales, ditches,perimeter slopes and HQW Zones
-10 days for Falls Lake Watershed unlessthere is zero slope
Stabilize withinthis many calendardays after ceasing
land disturbance
7
7
7
14
None
None
(a)Perimeter dikes,swales, ditches, andperimeter slopes
(b)High Quality Water(HQW) Zones
(c)Slopes steeperthan 3:1
If slopes are 10 feet or less in length andare not steeper than 2:1, 14 days are
allowed
(d)Slopes 3:1 to 4:1
(e)Areas with slopesflatter than 4:1 14
-7 days for slopes greater than 50' inlength and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
Temporary Stabilization Permanent Stabilization
·Temporary grass seed covered with straw or
other mulches and tackifiers.·Hydroseeding·Rolled erosion control products with orwithout temporary grass seed·Appropriately applied straw or other mulch·Plastic sheeting
·Permanent grass seed covered with straw
or other mulches and tackifiers·Geotextile fabrics such as permanent soilreinforcement matting·Hydroseeding·Shrubs or other permanent plantings
covered 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
NCG-01 GROUND COVER & MATERIALS HANDLING
Date:Page:
EFFECTIVE DATE: 11/12/2020
PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF-INSPECTIONSelf-inspections are required during normal business hours in accordance with the tablebelow. When adverse weather or site conditions would cause the safety of the inspectionpersonnel 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 orgreater than 1.0 inch occurs outside of normal business hours, the self-inspection shall beperformed upon the commencement of the next business day. Any time when inspectionswere delayed shall be noted in the Inspection Record.
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 atall times during normal business hours.
2.Additional Documentation to be Kept on SiteIn addition to the E&SC plan documents above, the following items shall be kept on thesite and available for inspectors at all times during normal business hours, unless theDivision 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 shallrecord 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 ifshown to provide equal access and utility as the hard-copy records.
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 311of 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 theappropriate 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.
3.Documentation to be Retained for Three YearsAll data used to complete the e-NOI and all inspection records shall be maintained for a periodof 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.
Item to Document Document Requirements
(a)Each E&SC measure has been installed anddoes not significantly deviate from the locations,dimensions and relative elevations shown on theapproved E&SC plan.
Initial and date each E&SC measure on a copy ofthe approved E&SC plan or complete, date andsign an inspection report that lists each E&SCmeasure shown on the approved E&SC plan. Thisdocumentation is required upon the initial
installation of the E&SC measures are modifiedafter initial installation.
(b)A phase of grading has been completed. Initial and date a copy of the approved E&SC planor complete, date and sign an inspection report toindicate completion of the construction phase.
(c)Ground cover is located and installed inaccordance with the approved E&SC plan.Initial and date a copy of the approved E&SC planor complete, date and sign an inspection report toindicate compliance with approved ground coverspecifications.
(d)The maintenance and repair requirements forall E&SC measures have been performed.Complete, date and sign an inspection report.
(e)Corrective actions have been taken to E&SC
measures.
Initial and date a copy of the approved E&SC planor complete, date and sign an inspection report to
indicate the completion of the corrective action.
Inspect
(1)Rain gauge
maintained ingood working
order
Frequency(during normalbusiness hours)Daily
Inspection records must include:
(2)E&SC
Measures
At least once per 7calendar days and
within 24 hours ofa rain event ≥ 1.0
inch in 24 hours.
(3)Stormwaterdischargeoutfalls(SDOs)
At least once per 7calendar days and
within 24 hours of
a rain event ≥ 1.0inch in 24 hours.
(4)Perimeter
of Site
At least once per 7calendar days and
within 24 hours of
a rain event ≥ 1.0inch in 24 hours.
(5)Streams or
wetlandsonsite oroffsite (whereaccessible)
(6)Ground
StabilizationMeasures
At least once per 7calendar days and
within 24 hours of
a rain event ≥ 1.0inch in 24 hours.
After each phaseof grading.
1.Identification of the measures inspected2.Date and Time of the inspection3.Name of the person performing the inspection4.Indication of whether the measures were operating properly
5.Description of maintenance needs for the measure6.Description, Evidence, and date of corrective actions taken
Daily rainfall amounts.If no daily rain gauge observations are made during weekendon holiday periods, and no individual-day rainfall information isavailable, record the cumulative rain measurement for thoseunattended days (this will determine if a site inspection isneeded). Days on which no rainfall occurred shall be recordedas "Zero." The permittee may use another rain-monitoringdevice approved by the Division.
1.Identification of the discharge outfalls inspected2.Date and Time of the inspection3.Name of the person performing the inspection4.Evidence of indicators of stormwater pollution such as oilsheen, floating or suspended solids or discoloration5.Indication of visible sediment leaving the site6.Description, Evidence, and date corrective actions taken
If visible Sedimentation is found outside site limits, then recordof the following shall be made:1)Actions taken to clean up or stabilize sediment that has left
the site limits2)Description, Evidence and date of corrective actions taken3)An explanation as to the actions taken to control future
releases
If the stream or wetland has increased visible sedimentation orhas visible increased turbidity from the construction activity, thena record of the following shall be made:1)Description, Evidence and date of corrective actions taken2)Records of required reports to the appropriate DivisionRegional Office per Part III, Section C, Item(2)(a) of this permit
1.The phase of grading (installation of perimeter E&SC
measures, clearing and grubbing, installation of stormdrainage facilities, completion of all land-disturbing activity,construction or redevelopment, permanent ground cover).2.Documentation that the required ground stabilizationmeasures have been provided within the required timeframeor assurance that they will be provided as soon as possible.
NCG-01 SELF INSPECTION
Date:Page:
EFFECTIVE DATE:11/12/2020
Occurrence
(a) Visiblesedimentdeposition in astream or wetland
Reporting Timeframe (After Discovery) and Other Requirements
• Within 24 hours, an oral or electronic notification.
• Within 7 Calendar Days, a report that contains a description of thesediment 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 caused, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staffdetermine that additional requirements are needed to assure
compliance with the federal or state impaired-waters conditions.(b) Oil spills and
release ofhazardous
substances peritem 1(b)-(c) above
(c) Anticipatedbypasses [40 CFR122.41(m)(3)](d) Unanticipatedbypasses [40 CFR122.41(m)(3)]
(e) Noncompliancewith the conditionsof this permit thatmay endanger
health or theenvironment [40CFR 122.41(I)(7)]
• Within 24 Hours, an oral or electronic notification. The notification shallinclude information about the date, time, nature, volume and locationof the spill or release.
• A report at least ten days before the date of the bypass, if possible.The report shall include an evaluation of the anticipated quality andeffect of the bypass.
• Within 24 Hours, an oral or electronic notification
• Within 7 calendar days, a report that includes an evaluation of thequality and effect of the bypass.
• Within 24 Hours, an oral or electronic notification• Within 7 calendar days, a report that contains a description of thenoncompliance, and its causes; the period of noncompliance, includingexact dates and times, and if the noncompliance has not beencorrected, the anticipated time noncompliance is expected to continue;and steps taken or planned to reduce, eliminate and preventreoccurrence 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.
DETAIL 35
PARALLEL PIPE END SECTION
N.T.S.
DETAIL 36
INSPECTIONS
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