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BYDATEREVISIONS132456PROJECT NO.
<br />SHEET NO.PROJECT ENGINEER/ARCHITECTPROJECT MANAGERDRAWN BY7DRAWING NAME:DAS (DON.SEVER@SUMMITDE.NET)20-0014WHITTED COMPLEXHILLSBOROUGH, NC, 27278300 WEST TRYON STSITE PLANCreatively Inspired - Technically ExecutedLicense #: P-0339320 Executive CourtHillsborough, NC 27278-8551Voice: (919) 732-3883 Fax: (919) 732-6676www.summitde.netFIRST ISSUE DATEMGA (MALLORY.ARMFIELD@SUMMITDE.NET)09-02-2020MGA (MALLORY.ARMFIELD@SUMMITDE.NET)ENGINEERING, INC.20-0014_D
<br />D-5 EROSION & SEDIMENT CONTROLDETAILSNCG01 GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19
<br />GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
<br />THE NCG01 CONSTRUCTION GENERAL PERMIT
<br />Implementing the details and specifications on this plan sheet will result in the construction
<br />activity being considered compliant with the Ground Stabilization and Materials Handling
<br />sections of the NCG01 Construction General Permit (Sections E and F, respectively). The
<br />permittee shall comply with the Erosion and Sediment Control plan approved by the
<br />delegated authority having jurisdiction. All details and specifications shown on this sheet
<br />may not apply depending on site conditions and the delegated authority having jurisdiction.
<br />GROUND STABILIZATION SPECIFICATION
<br />Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
<br />techniques in the table below:
<br />POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
<br />1.Select flocculants that are appropriate for the soils being exposed during
<br />construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
<br />2.Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
<br />3.Apply flocculants at the concentrations specified in the NC DWR List of Approved
<br />PAMS/Flocculants and in accordance with the manufacturer's instructions.
<br />4.Provide ponding area for containment of treated Stormwater before discharging
<br />offsite.
<br />5.Store flocculants in leak-proof containers that are kept under storm-resistant cover
<br />or surrounded by secondary containment structures.
<br />HAZARDOUS AND TOXIC WASTE
<br />1.Create designated hazardous waste collection areas on-site.
<br />2.Place hazardous waste containers under cover or in secondary containment.
<br />3.Do not store hazardous chemicals, drums or bagged materials directly on the ground.
<br />EQUIPMENT AND VEHICLE MAINTENANCE
<br />1.Maintain vehicles and equipment to prevent discharge of fluids.
<br />2.Provide drip pans under any stored equipment.
<br />3.Identify leaks and repair as soon as feasible, or remove leaking equipment from the
<br />project.
<br />4.Collect all spent fluids, store in separate containers and properly dispose as
<br />hazardous waste (recycle when possible).
<br />5.Remove leaking vehicles and construction equipment from service until the problem
<br />has been corrected.
<br />6.Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
<br />to a recycling or disposal center that handles these materials.
<br />LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
<br />1.Never bury or burn waste. Place litter and debris in approved waste containers.
<br />2.Provide a sufficient number and size of waste containers (e.g dumpster, trash
<br />receptacle) on site to contain construction and domestic wastes.
<br />3.Locate waste containers at least 50 feet away from storm drain inlets and surface
<br />waters unless no other alternatives are reasonably available.
<br />4.Locate waste containers on areas that do not receive substantial amounts of runoff
<br />from upland areas and does not drain directly to a storm drain, stream or wetland.
<br />5.Cover waste containers at the end of each workday and before storm events or
<br />provide secondary containment. Repair or replace damaged waste containers.
<br />6.Anchor all lightweight items in waste containers during times of high winds.
<br />7.Empty waste containers as needed to prevent overflow. Clean up immediately if
<br />containers overflow.
<br />8.Dispose waste off-site at an approved disposal facility.
<br />9.On business days, clean up and dispose of waste in designated waste containers.
<br />PAINT AND OTHER LIQUID WASTE
<br />1.Do not dump paint and other liquid waste into storm drains, streams or wetlands.
<br />2.Locate paint washouts at least 50 feet away from storm drain inlets and surface
<br />waters unless no other alternatives are reasonably available.
<br />3.Contain liquid wastes in a controlled area.
<br />4.Containment must be labeled, sized and placed appropriately for the needs of site.
<br />5.Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
<br />construction sites.
<br />PORTABLE TOILETS
<br />1.Install portable toilets on level ground, at least 50 feet away from storm drains,
<br />streams or wetlands unless there is no alternative reasonably available. If 50 foot
<br />offset is not attainable, provide relocation of portable toilet behind silt fence or place
<br />on a gravel pad and surround with sand bags.
<br />2.Provide staking or anchoring of portable toilets during periods of high winds or in high
<br />foot traffic areas.
<br />3.Monitor portable toilets for leaking and properly dispose of any leaked material.
<br />Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
<br />with properly operating unit.
<br />HERBICIDES, PESTICIDES AND RODENTICIDES
<br />1.Store and apply herbicides, pesticides and rodenticides in accordance with label
<br />restrictions.
<br />2.Store herbicides, pesticides and rodenticides in their original containers with the
<br />label, which lists directions for use, ingredients and first aid steps in case of
<br />accidental poisoning.
<br />3.Do not store herbicides, pesticides and rodenticides in areas where flooding is
<br />possible or where they may spill or leak into wells, stormwater drains, ground water
<br />or surface water. If a spill occurs, clean area immediately.
<br />4.Do not stockpile these materials onsite.
<br />CONCRETE WASHOUTS
<br />1.Do not discharge concrete or cement slurry from the site.
<br />2.Dispose of, or recycle settled, hardened concrete residue in accordance with local
<br />and state solid waste regulations and at an approved facility.
<br />3.Manage washout from mortar mixers in accordance with the above item and in
<br />addition place the mixer and associated materials on impervious barrier and within
<br />lot perimeter silt fence.
<br />4.Install temporary concrete washouts per local requirements, where applicable. If an
<br />alternate method or product is to be used, contact your approval authority for
<br />review and approval. If local standard details are not available, use one of the two
<br />types of temporary concrete washouts provided on this detail.
<br />5.Do not use concrete washouts for dewatering or storing defective curb or sidewalk
<br />sections. Stormwater accumulated within the washout may not be pumped into or
<br />discharged to the storm drain system or receiving surface waters. Liquid waste must
<br />be pumped out and removed from project.
<br />6.Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
<br />can be shown that no other alternatives are reasonably available. At a minimum,
<br />install protection of storm drain inlet(s) closest to the washout which could receive
<br />spills or overflow.
<br />7.Locate washouts in an easily accessible area, on level ground and install a stone
<br />entrance pad in front of the washout. Additional controls may be required by the
<br />approving authority.
<br />8.Install at least one sign directing concrete trucks to the washout within the project
<br />limits. Post signage on the washout itself to identify this location.
<br />9.Remove leavings from the washout when at approximately 75% capacity to limit
<br />overflow events. Replace the tarp, sand bags or other temporary structural
<br />components when no longer functional. When utilizing alternative or proprietary
<br />products, follow manufacturer's instructions.
<br />10.At the completion of the concrete work, remove remaining leavings and dispose of
<br />in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
<br />caused by removal of washout.
<br />EARTHEN STOCKPILE MANAGEMENT
<br />1.Show stockpile locations on plans. Locate earthen-material stockpile areas at least
<br />50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
<br />and surface waters unless it can be shown no other alternatives are reasonably
<br />available.
<br />2.Protect stockpile with silt fence installed along toe of slope with a minimum offset of
<br />five feet from the toe of stockpile.
<br />3.Provide stable stone access point when feasible.
<br />4.Stabilize stockpile within the timeframes provided on this sheet and in accordance
<br />with the approved plan and any additional requirements. Soil stabilization is defined
<br />as vegetative, physical or chemical coverage techniques that will restrain accelerated
<br />erosion on disturbed soils for temporary or permanent control needs.
<br />A
<br />A
<br />BELOW GRADE WASHOUT STRUCTURE
<br />1:1
<br />SIDE SLOPE
<br />(TYP.)
<br />10 MIL
<br />PLASTIC
<br />LINING
<br />3'-0"MIN.& X'MAX.SECTION A-A
<br />NOT TO SCALE
<br />ABOVE GRADE WASHOUT STRUCTURE
<br />NOT TO SCALE
<br />PLAN
<br />SECTION B-B
<br />HIGH
<br />COHESIVE &
<br />LOW FILTRATION
<br />SOIL BERM
<br />8"6"
<br />2'
<br />HIGH
<br />COHESIVE &
<br />LOW FILTRATION
<br />SOIL BERM1:1 SIDE SLOPE
<br />(TYP.)
<br />10 MIL
<br />PLASTIC LINING
<br />B
<br />B
<br />3'-0"MIN.& X'MAX.A
<br />SANDBAGS (TYP.)
<br />OR STAPLES
<br />SANDBAGS (TYP.)
<br />OR STAPLES
<br />SANDBAGS (TYP.)
<br />OR STAPLES
<br />SANDBAGS (TYP.)
<br />OR STAPLES
<br />NOTES:
<br />1. ACTUAL LOCATION DETERMINED IN FIELD
<br />2. THE CONCRETE WASHOUT STRUCTURES SHALL BE
<br />MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES
<br />75% OF THE STRUCTURES CAPACITY.
<br />3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE
<br />CLEARY MARKED WITH SIGNAGE NOTING DEVICE.
<br />NOTES:
<br />1. ACTUAL LOCATION DETERMINED IN FIELD
<br />2. THE CONCRETE WASHOUT STRUCTURES
<br />SHALL BE MAINTAINED WHEN THE LIQUID
<br />AND/OR SOLID REACHES 75% OF THE
<br />STRUCTURES CAPACITY TO PROVIDE
<br />ADEQUATE HOLDING CAPACITY WITH A
<br />MINIMUM 12 INCHES OF FREEBOARD.
<br />3.CONCRETE WASHOUT STRUCTURE NEEDS
<br />TO BE CLEARY MARKED WITH SIGNAGE
<br />NOTING DEVICE.
<br />ONSITE CONCRETE WASHOUT
<br />STRUCTURE WITH LINER
<br />CONCRETE
<br />WASHOUT
<br />CONCRETE
<br />WASHOUT
<br />PLAN
<br />CLEARLY MARKED SIGNAGE
<br />NOTING DEVICE (18"X24" MIN.)
<br />CLEARLY MARKED SIGNAGE
<br />NOTING DEVICE (18"X24" MIN.)
<br />SILT FENCE
<br />10'MIN10'
<br />MIN
<br />SECTION E: GROUND STABILIZATION
<br />Required Ground Stabilization Timeframes
<br />Note: After the permanent cessation of construction activities, any areas with temporary
<br />ground stabilization shall be converted to permanent ground stabilization as soon as
<br />practicable but in no case longer than 90 calendar days after the last land disturbing
<br />activity. Temporary ground stabilization shall be maintained in a manner to render the
<br />surface stable against accelerated erosion until permanent ground stabilization is achieved.
<br />Site Area Description Timeframe variations
<br />-7 days for perimeter dikes, swales,
<br />ditches, perimeter slopes and HQW Zones
<br />-10 days for Falls Lake Watershed unless
<br />there is zero slope
<br />Stabilize within this
<br />many calendar
<br />days after ceasing
<br />land disturbance
<br />7
<br />7
<br />7
<br />14
<br />None
<br />None
<br />(a)Perimeter dikes,
<br />swales, ditches, and
<br />perimeter slopes
<br />(b)High Quality Water
<br />(HQW) Zones
<br />(c)Slopes steeper than
<br />3:1
<br />If slopes are 10' or less in length and are
<br />not steeper than 2:1, 14 days are
<br />allowed
<br />(d)Slopes 3:1 to 4:1
<br />(e)Areas with slopes
<br />flatter than 4:1 14
<br />-7 days for slopes greater than 50' in
<br />length and with slopes steeper than 4:1
<br />-7 days for perimeter dikes, swales,
<br />ditches, perimeter slopes and HQW
<br />Zones
<br />-10 days for Falls Lake Watershed
<br />9/2/2020
<br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03
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