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HomeMy WebLinkAboutNCC232022_Site Plan or Location Map_20230725 DATE: PAGE: MAY2023 NORTH CAROLINA STANDARD SEDIMENT AND EROSION 1 CONTROL PLAN FOR SMALL RESIDENTIAL LOTS NOTES AND APPLICABILITY TO LOT DEVELOPMENT 1. This plan is for lots with an Individual disturbed area of 1.00 acre or less, and a TABLEOF CONTENTS Page total site disturbance of not more than 5.0 acres for individual single family or multi-family dwellings. 2. A vicinity map showing the boundaries of the project and access to the site is to 1 . Title Sheet MIDWAY either be shown on this standard plan or to accompany this standard plan. 3. A subdivision plat or plan showing numbered lots and the Limits of Disturbance 2. Lot Information Table ARCADIA (LoD) is to accompany this standard plan. The LoD includes lots, access to 3. Typical Individual Lot Layout With �0,er. . measures, staging areas, and utilities that may extend off-site. Yp y °SeR 4. Lots are "Finished", or at final grade. Mass grading with full stabilization has Curb and Gutter a i`� already occurred or mass grading is not to occur. 4, 5. The property does not contain nor have jurisdictional waters within 100 feet of the 4. Typical Individual Lot Layout With 2 z lots. 0 o y 6. The site is not located in a High Quality Water Zone. Roadside Ditches Rd 52 7. No discharges are allowed into impaired waters. 5. NCG-01 Self-InspectionAl 8. Onsite vehicle or equipment washing is not allowed. p ��� 9. This site involves no off-site material storage, waste disposal, or borrow areas. 6. NCG-01 Ground Cover & Material 4 °°me 10. All disturbed areas not built upon shall be provided with permanent ground cover. gr�alaRa y;��°,e 11. As of April 1, 2019, applicant must apply online at deq.nc.gov/NCGO1 for the Handling a-SITE NCGO1 permit, if applicable. 7. Temporary Seeding 5 WELCOME 12. The NCDEQ reserves the right to require a site-specific erosion control plan to be e Bethesdaco prepared and submitted for the 30-day review cycle. ea) co Recommendations 8. Permanent Seeding 5 _ GENERAL CONSTRUCTION SEQUENCE FOR SMALL Recommendations RESIDENTIAL LOT EROSION AND SEDIMENT CONTROL 01. Upon receipt of a Certificate of Plan Approval, notify the appropriate Land Quality 9. Construction Entrance/Exit 6 BETHESDA office at least 5 business days prior to the start of construction. 2. Install construction entrances(s). 10. I nlet Protection - 1 3. Install check dams and/or erosion control blankets in roadside ditch, where exists. 4. Install yard inlet protection and perimeter controls (silt fence, silt fence outlets, etc.) 11 . Rolled Erosion Control Products VICINITY MAP according to the plan. For contiguous lots with different builders or land owners, it is (RECP) NOT TO SCALE suggested that each builder/owner install their own silt fence along the shared parcel boundary. If silt fence is not required along the front of the lot due to the drainage 12. Silt Fence 6 layout, the builder must provide a measure to limit access through the construction entrance. Ensure inlets downgrade of disturbances are protected from siltation. 13. Silt Fence Outlet 6 5. Proceed with individual lot construction. 6. Maintain erosion and sedimentation controls during construction. 14. Silt Sock/Wattle For Check Dams WYNNFALL SUBDIVISION (LOT 22) 7. Provide for ground stabilization after completion of any phase of grading in 15. Silt Sock/Wattle For Perimeter and PROJECT NAME: accordance with the NPDES timeframes table. Persons responsible for land disturbing activities are responsible for phased inspections to ensure the approved Inlet Protection PROJECT NUMBER: 20-050 DRAWN BY: DCS erosion and sedimentation control plan is being followed. All erosion control measures shall be inspected at least once per week and after each storm event of 16. Tree Protection DATE OF APPROVAL: 1.0 inches or more in a 24-hour period. The self-inspection report, as well as instructions for the self-inspection program, can be found at deq.nc.gov/NCG01. 8. Remove any temporary driveway pipe and temporary construction entrance immediately prior to constructing permanent driveway. NOTE - FOR ANY PERFORMANCE RESERVATIONS REGARDING THE SEDIMENT CONTROL PLAN (PERFORMANCE 9. Once construction is complete and all areas are stabilized, remove any remaining BASED) OR CRITICAL AREAS, A FIELD REVISION OR A CUSTOM PLAN MAY BE REQUIRED erosion or sedimentation controls and stabilize any areas disturbed by their removal. 10. Once the last approved lot is complete, notify the appropriate Land Quality office for a close-out inspection. g I EnvronmenalQuatity STANDARD SEDIMENT & EROSION CONTROL PLAN (LOT 22) 4 KENNERLY ENGINEERING&DESIGN.INC. EFFECTIVE DATE:11/12/2020 DATE: PAGE: MAY 2023 2 \ %� _—' — - dovo I I I cn // 1` P BP S 0+00.00 0 33 '• 33-72 / / I I� ° • •Q `� �� — PAINTED TRAILS — I— —I — I — I — I — T O — — X I 1 I 1 __ / / 18 I I I 1 1 II 11...vxmailam.-__ w `=i====J-J_r_l__ ITry—= � ___ _ _ 835 / / / I 1 I 1 \ \ 03,c,,?1 HT .v44 -I T:::,:\.j 777 1 / 1 -N 0 \ NI\ I\ \ \ I I I I I i I I SILT FENCE'_ �' , i ,3 0/ // / I I 1 i \ 1 I 1 CONSTRUCTION ENTRANCE // / <� / / >\\ \ \ \ 1 I I ( I I I 1 \ W/CONCRETE WASHOUT �� ,_ OUTLET(TYP) // / k/ / / \ \ 1I I / I N \ III I / / I \ \ II a I I 26 I I I \ 1 \ — _ 1 �L 1 J. // // i� // /\ \y// , — / I I \ \ I 11NI I r- - M \ I 25 \ I 24 12 1 I ® � / / 2I / \ \ i' � / /� II \ \ \ I I / / \ m \ \ \ o I .; 23 22 / 21 / / \ mac\/ / / i \ I 1 I I 1 \ I \I \ \ \ \ 1 1 1 ® / 20 / \ �\ / - 19 I / I / I I I III \ \ / / / / / \ \ \ ,� I,/ IIIII I II 1 I i I III 1 I I I \\\ \ \ \ \ 1 \ a // / / / / / / \ \ - - - J // 1 / / / 11 I I I I 1 1 I I -\ \ \ \ \ \ �__ 11/� , SILT / / / \ / / / I I --1—I I I I1_ L\ — I A J \\ J\-\ \ \ 8�\ g ®� (TYP)FENCE // // // / \ \\ I / V I i I / r5�6 I 1 \ \ I I 1 l \ \ E- � - -\J - - - =-I L- - - _ � % _ /_ / / 1 / / \ I / _ \ / I I 1_ \ /_ /_ _ / ' / I / // I �I 1120.ds' l�.os' T /�- \ / / I I r7�T�--L \ —\ —= 100.04' 100.04. _.-.�D4 ® / / / / /�— f \ f/ t / / / / / / / I 1 I I I I I \ A-\ N—1,—,...,____::-.----, 5 29 W\84.61') \ \ / /( / / ��/0�-f / '14s.33' / / ' ,...17 / / l I .1 �_ O / / / / , 1 I I I I I I \ \ \. \_ \\ \ / / / / i/ / -M'g5°21'46"W �46Yb5'1 i / / / I I Notes: LEGEND 1. If needed, Tree Protection fencing should be installed along the buffer zone, wetland boundary and/or around protected trees, providing a radius of at least 1.25 feet for each inch of trunk diameter. 2. Install Silt Fence on the low elevation sides of each lot. Install Silt Fence outlets shown on schematic/diagram and FLOW DIRECTION < field adjusted, if necessary, for placement at low points. If lots are contiguous and have different land owners or builders, each lot should have individual Silt Fences. SILT FENCE ® 3. Install required Silt Fence within 10 feet of property line to ensure there is no conflict with septic system. It is the DIVERSION DITCH p F responsibility of the builder to ensure the installation of sediment control measures does not impact the septic system and repair area(s). WADDLE/ SILT SOCKS ) 4. At least one Construction Entrance/Exit is to be installed per lot. 5. Waste bins and other areas dedicated for managing building material waste shall be at least 50 feet away from SILT FENCE OUTLET storm drain inlets or drainage ditches unless it can be shown that no other alternative exists. If this separation �; cannot be achieved, these areas must be contained behind Silt Fence. CONCRETE WASHOUT g 6. Inlets downstream of disturbances should be protected; streets should be swept when sediment from the :' i''""i'ti"""i''' CONSTRUCTION ENTRANCE construction activity is present. 7. Details for Silt Fence, Silt Fence Outlets, Construction Entrances and other measures are provided on additional sheets. Erosion and sediment control details are not drawn to scale. ',` p'ERvirnme�alQuality TYPICAL INDIVIDUAL LOT LAYOUT WITH ROADSIDE DITCHES (LOT 22) 4.. KENNERLY ENGINEERING&DESIGN.INC. EFFECTIVE DATE:11/12/2020 DATE: PART II,SECTION G,ITEM(4) PAGE: MAY 2023 DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT 3 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. PART III PART III PART III SELF-INSPECTION,RECORDKEEPING AND REPORTING SELF-INSPECTION, RECORDKEEPING AND REPORTING SELF-INSPECTION,RECORDKEEPING AND REPORTING SECTION A:SELF-INSPECTION SECTION B:RECORDKEEPING SECTION C:REPORTING Self-inspections are required during normal business hours in accordance with the table 1. E&SC Plan Documentation 1.Occurrences that Must be Reported below. When adverse weather or site conditions would cause the safety of the inspection The approved E&SC plan as well as any approved deviation shall be kept on the site. The Permittees shall report the following occurrences: personnel to be in jeopardy,the inspection may be delayed until the next business day on approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The which it is safe to perform the inspection. In addition,when a storm event of equal to or (a) Visible sediment deposition in a stream or wetland. following items pertaining to the E&SC plan shall be kept on site and available for inspection at greater than 1.0 inch occurs outside of normal business hours,the self-inspection shall be (b) Oil spills if: performed upon the commencement of the next business day. Anytime when inspections all times during normal business hours. P P • They are 25 gallons or more, were delayed shall be noted in the Inspection Record. • They are less than 25 gallons but cannot be cleaned up within 24 hours, Item to Document Document Requirements • They cause sheen on surface waters(regardless of volume),or Inspect Frequency Inspection records must include: (during normal Initial and date each E&SC measure on a copy of • They are within 100 feet of surface waters(regardless of volume). business hours) the approved E&SC plan or complete,date and (c) Releases hazardoussubstancesin quantities under Section 311 (1)Rain gauge Daily Daily rainfall amounts. (a)Each E&SC measure has been installed and of excess ofreportable does not significantly deviate from the locations, sign an inspection report that lists each E&SC of the Clean Water Act(Ref:40 CFR 110.3 and 40 CFR 117.3)or Section 102 of CERCLA maintained in If no daily rain gauge observations are made during weekend g y measure shown on the approved E&SCplan.This good working on holiday periods,and no individual-day rainfall information is dimensions and relative elevations shown on the pp (Ref:40 CFR 302.4)or G.S. 143-215.85. approved E&SC Ian. documentation is required upon the initial order available, record the cumulative rain measurement for those pp p installation of the E&SC measures are modified (d) Anticipated bypasses and unanticipated bypasses. unattended days(this will determine if a site inspection is after initial installation. (e) Noncompliance with the conditions of this permit that may endanger health or the needed).Days on which no rainfall occurred shall be recorded environment. as"Zero."The permittee may use another rain-monitoring (b)A phase of grading has been completed. Initial and date a copy of the approved E&SC plan device approved by the Division. or complete,date and sign an inspection report to 2.Reporting Timeframes and Other Requirements (2)E&SC At least once per 7 1.Identification of the measures inspected indicate completion of the construction phase. After a permittee becomes aware of an occurrence that must be reported,he shall contact the Measures calendar days and 2.Date and Time of the inspection appropriate Division regional office within the timeframes and in accordance with the other within 24 hours of 3.Name of the person performing the inspection (c)Ground cover is located and installed in Initial and date a copy of the approved E&SC plan requirements listed below. Occurrences outside normal business hours may also be reported a rain event>_1.0 4.Indication of whether the measures were operating properly accordance with the approved E&SC plan. or complete,date and sign an inspection report to p g p p y indicate compliance with approved ground cover to the Department's Environmental Emergency Center personnel at(800)858-0368. inch in 24 hours. 5.Description of maintenance needs for the measure specifications. 6.Description,Evidence,and date of corrective actions taken Occurrence Reporting Timeframe(After Discovery)and Other Requirements (3)Stormwater At least once per 7 1. Identification of the discharge outfalls inspected (d)The maintenance and repair requirements for Complete,date and sign an inspection report. (a)Visible •Within 24 hours,an oral or electronic notification. discharge calendar days and 2. Date and Time of the inspection all E&SC measures have been performed. sediment •Within 7 Calendar Days,a report that contains a description of the outfalls(SDOs) within 24 hours of 3. Name of the person performing the inspection deposition in a sediment and actions taken to address the cause of the deposition. a rain event>_1.0 4. Evidence of indicators of stormwater pollution such as oil stream or wetland Division staff may waive the requirement for a written report on a case- inch in 24 hours. sheen,floating or suspended solids or discoloration by-case basis. 5. Indication of visible sediment leaving the site (e)Corrective actions have been taken to E&SC Initial and date a copy of the approved E&SC plan •If the stream is named on the NC 303(d)list as impaired for sediment- 6. Description,Evidence,and date corrective actions taken measures. or complete,date and sign an inspection report to related caused,the permittee may be required to perform additional (4)Perimeter At least once per 7 If visible Sedimentation is found outside site limits,then record indicate the completion of the corrective action. monitoring, of Site calendar days and of the following shall be made: inspections or apply more stringent practices if staff determine that additional requirements are needed to assure within 24 hours of 1) Actions taken to clean up or stabilize sediment that has left compliance with the federal or state impaired-waters conditions. a rain event>_1.0 the site limits 2.Additional Documentation to be Kept on Site inch in 24 hours. 2) Description,Evidence and date of corrective actions taken In addition to the E&SC plan documents above,the following items shall be kept on the (b)Oil spills and •Within 24 Hours,an oral or electronic notification.The notification shall 3) An explanation as to the actions taken to control future site and available for inspectors at all times during normal business hours,unless the release of include information about the date,time,nature,volume and location releases Division provides a site-specific exemption based on unique site conditions that make hazardous of the spill or release. (5)Streams or At least once per 7 If the stream or wetland has increased visible sedimentation or this requirement not practical: substances per wetlands calendar days and has visible increased turbidity from the construction activity,then item 1(b)-(c)above onsite or within 24 hours of a record of the following shall be made: (a) This General Permit as well as the Certificate of Coverage,after it is received. (c)Anticipated •A report at least ten days before the date of the bypass,if possible. offsite(where a rain event>_1.0 1)Description,Evidence and date of corrective actions taken bypasses[40 CFR The report shall include an evaluation of the anticipated quality and accessible) inch in 24 hours. 2)Records of required reports to the appropriate Division (b) Records of inspections made during the previous twelve months. The permittee shall 122.41(m)(3)] effect of the bypass. Regional Office per Part III,Section C,Item(2)(a)of this permit (d)Unanticipated •Within 24 Hours,an oral or electronic notification record the required observations on the Inspection Record Form provided by the Division p (6)Ground After each phase 1.The phase of grading(installation of perimeter E&SC or a similar inspection form that includes all the required elements. Use of bypasses[40 CFR •Within 7 calendar days,a report that includes an evaluation of the Stabilization measures,clearingand grubbing, 122.41(m)(3)] bypass. grading. installation of storm electronically-available records in lieu of the required paper copies will be allowed ifqualityand effect of the b ass. Measures drainage facilities,completion of all land-disturbing activity, shown to provide equal access and utility as the hard copy records. (e)Noncompliance •Within 24 Hours,an oral or electronic notification construction or redevelopment,permanent ground cover). with the conditions •Within 7 calendar days,a report that contains a description of the 2.Documentation that the required ground stabilization of this permit that noncompliance,and its causes;the period of noncompliance,including 3.Documentation to be Retained for Three Years measures have been provided within the required timeframe All data used to complete the e-NOI and all inspection records shall be maintained for a period may endanger exact dates and times,and if the noncompliance has not been or assurance that they will be provided as soon as possible. of three years after project completion and made available upon request. [40 CFR 122.41] health or the corrected,the anticipated time noncompliance is expected to continue; environment[40 and steps taken or planned to reduce,eliminate and prevent NOTE:The rain inspection resets the required 7 calendar day inspection requirement. CFR 122.41(I)(7)] 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. % nonotlIErmenaQuality NCG-01 SELF INSPECTION (LOT 22) KENNERLY ENGINEERING&DESIGN.INC. EFFECTIVE DATE:11/12/2020 DATE: GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE EQUIPMENT AND VEHICLE MAINTENANCE ONSITE CONCRETE WASHOUT PAGE: WITH THE NCG01 CONSTRUCTION GENERAL PERMIT 1. Maintain vehicles and equipment to prevent discharge of fluids. STRUCTURE WITH LINER 4 MAY 2023 10 MIL NOTES: Implementing the details and specifications on this plan sheet will result in the construction 2. Provide drip pans under any stored equipment. .A PLASTIC 1.ACTUAL LOCATION DETERMINED activitybeingconsidered compliant with the Ground Stabilization and Materials Handling0 0 LINING P 3. Identify leaks and repair as soon as feasible,or remove leakingequipment ment from the o 0 0 1:1 IN FIELD t P q p \ V V / SILT SIDE SLOP SANDBAGS(TYP.) sections of the NCGO1 Construction General Permit(Sections E and F,respectively). The project. 0 <0 FENCE (TYP.) �OR STAPLES 2.THE CONCRETE WASHOUT permittee shall comply with the Erosion and Sediment Control plan approved by the delegated STRUCTURES SHALL BE 4. Collect all spent fluids,store in separate containers and properly dispose as hazardous 0 0 „o MAINTAINED WHEN THE LIQUID authority having jurisdiction.All details and specifications shown on this sheet may not apply > < 1y waste(recycle when possible). 0 0 AND/OR SOLID REACHES 75%OF depending on site conditions and the delegated authority having jurisdiction. 5. Remove leaking vehicles and construction equipment from service until the problem u o o o 0�SANDBAGS(TYP.) &X' THE STRUCTURES CAPACITY. has been corrected. �A OR STAPLES MAX. 3.CONCRETE WASHOUT SECTION E:GROUND STABILIZATIONSTRUCTURE NEEDS TO BE CLEARY 6. Bring used fuels,lubricants,coolants,hydraulic fluids and other petroleum products to SECTION A-A BELOW GRADE WASHOUT STRUCTURE MARKED WITH SIGNAGE NOTING Required Ground Stabilization Timeframes a recycling or disposal center that handles these materials. NOT TO SCALE DEVICE. Stabilize within CLEARLY MARKED HIGH this manycalendar COHESIVE& CONCRETEi SIGNAGE Site Area Description Timeframe variations LOW FILTRATION WASHOUT NOTING DEVICE NOTES: days after ceasing SOIL BERM p p (18"X24"MIN.) 1.ACTUAL LOCATION DETERMINED LITTER,BUILDING MATERIAL AND LAND CLEARING WASTE I land disturbance 10'MIN IN FIELD 1. Never bury or burn waste. Place litter and debris in approved waste containers. ..-B SANDBAGS(TYP.) (a) Perimeter dikes, 10 MIL OR STAPLES 2.THE CONCRETE WASHOUT 2. Provide a sufficient number and size of waste containers(e.g dumpster,trash \ A A A A / PLASTIC LINING IGH swales,ditches,and 0 0 0 o a COHESIVE& STRUCTURES SHALL BE MAINTAINED 7 None receptacle)on site to contain construction and domestic wastes. 1LOW FILTRATION perimeter slopes P ) V V 1 SIDE SOIL BERM WHEN THE LIQUID AND/OR SOLID 3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters <0> <0> SLOPE REACHES 75%OF THE STRUCTURES (TYP.) CAPACITY TO PROVIDE ADEQUATE unless no other alternatives are reasonably available. <0 10'MIN HOLDING CAPACITY WITH A MINIMUM (b) High Quality Water 7 None O� <O 12 INCHES OF FREEBOARD. 4. Locate waste containers on areas that do not receive substantial amounts of runoff from (� (HQW)Zones <0 ci ci) 8" 3'-0•MIN.& upland areas and does not drain directly to a storm drain,stream or wetland. B• XMAX. 3.CONCRETE WASHOUT STRUCTURE If slopes are 10 feet or less in length and / V V V NEEDS TO BE CLEARY MARKED WITH (c) Slopes steeper 7 P g 5. Cover waste containers at the end of each workday and before storm events or provide �B SANDBAGS(TYP.) SIGNAGE NOTING DEVICE. than 3:1 are not steeper than 2:1, 14 days are secondary containment. Repair or replace damaged waste containers. SECTION B-B OR STAPLES allowed 6. Anchor all lightweight items in waste containers during times of high winds. ABOVE GRAD I IT STRIICTI IRF -7 days for slopes greater than 50'in 7. Empty waste containers as needed to prevent overflow. Clean up immediately if ��� length and with slopes steeper than 4:1 containers overflow. -7 days for perimeter dikes,swales, 8. Dispose waste off-site at an approved disposal facility. CONCRETE WASHOUTS (d) Slopes 3:1 to 4:1 14 ditches,perimeter slopes and HQW 1. Do not discharge concrete or cement slurryfrom the site. Zones 9. On business days,clean up and dispose of waste in designated waste containers. 9 2. Dispose of,or recycle settled,hardened concrete residue in accordance with local and -10 days for Falls Lake Watershed state solid waste regulations and at an approved facility. -7 days for perimeter dikes,swales,ditches. PAINT AND OTHER LIQUID WASTE 3. Manage washout from mortar mixers in accordance with the above item and in addition (e) Areas with slopes perimeter slopes and HQW Zones 1. Do not dump paint and other liquid waste into storm drains,streams or wetlands. place the mixer and associated materials on impervious barrier and within lot perimeter flatter than 4:1 14 -10 days for Falls Lake Watershed unless 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters silt fence. there is zero slope unless no other alternatives are reasonably available. 4. Install temporary concrete washouts per local requirements,where applicable. If an Note:After the permanent cessation of construction activities,any areas with temporary 3. Contain liquid wastes in a controlled area. alternate method or product is to be used,contact your approval authority for review ground stabilization shall be converted to permanent ground stabilization as soon as 4. Containment must be labeled,sized and placed appropriately for the needs of site. and approval. If local standard details are not available,use one of the two types of temporary concrete washouts provided on this detail. practicable but in no case longer than 90 calendar days after the last land disturbing activity. 5. Prevent the discharge of soaps,solvents,detergents and other liquid wastes from 5. Do not use concrete washouts for dewateringstoringdefective curb or sidewalk Temporary ground stabilization shall be maintained in a manner to render the surface stable construction sites. or against accelerated erosion until permanent ground stabilization is achieved. 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 PORTABLE TOILETS pumped out and removed from project. GROUND STABILIZATION SPECIFICATION 1. Install portable toilets on level ground,at least 50 feet away from storm drains,streams Stabilize theground sufficientlyso that rain will not dislodge the soil. Use one of the 6. Locate washouts thata noast 50r )ter from storm draino inlets aly and surfacele. watersm unlessm,install it 9 or wetlands unless there is no alternative reasonably available. If 50 foot offset is not can be shown other alternatives are reasonably available. At a minimum,install techniques in the table below: attainable,provide relocation of portable toilet behind silt fence or place on a gravel pad protection of storm drain inlet(s)closest to the washout which could receive spills or and surround with sand bags. overflow. Temporary Stabilization Permanent Stabilization 2. Provide staking or anchoring of portable toilets during periods of high winds or in high • Temporary grass seed covered with straw or • Permanent grass seed covered with straw 7. Locate washouts in an easily accessible area,on level ground and install a stone p ry foot traffic areas. entrancepad in front of the washout. Additional controls maybe required bythe other mulches and tackifiers. or other mulches and tackifiers q 3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a approving • Hydroseeding • Geotextile fabrics such as permanent soil PP 9 authority. Y g licensed sanitary waste hauler to remove leaking portable toilets and replace with • Rolled erosion control roducts with or reinforcement matting 8. Install at least one sign directing concrete trucks to the washout within the project limits. p • Hydroseeding properly operating unit. Post si na a on the washout itself to identifythis location. without temporary grass seed y g g g • Appropriately applied straw or other mulch • Shrubs or other permanent plantings 9. Remove leavings from the washout when at approximately 75%capacity to limit • Plastic sheeting covered with mulch overflow events. Replace the tarp,sand bags or other temporary structural • Uniform and evenly distributed ground cover EARTHEN STOCKPILE MANAGEMENT components when no longer functional. When utilizing alternative or proprietary sufficient to restrain erosion 1. Show stockpile locations on plans. Locate earthen-material stockpile areas at least 50 products,follow manufacturer's instructions. • Structural methods such as concrete, feet away from storm drain inlets,sediment basins,perimeter sediment controls and 10. At the completion of the concrete work,remove remaining leavings and dispose of in an asphalt or retaining walls surface waters unless it can be shown no other alternatives are reasonably available. approved disposal facility. Fill pit,if applicable,and stabilize any disturbance caused by • Rolled erosion control products with grass 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five removal of washout. seed feet from the toe of stockpile. 3. Provide stable stone access point when feasible. POLYACRYLAMIDES(PAMS)AND FLOCCULANTS 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with HERBICIDES,PESTICIDES AND RODENTICIDES 1. Select flocculants that are appropriate for the soils being exposed during construction, the approved plan and any additional requirements. Soil stabilization is defined as 1. Store and apply herbicides,pesticides and rodenticides in accordance with label selecting from the NC DWR List of Approved PAMS/Flocculants. vegetative,physical or chemical coverage techniques that will restrain accelerated restrictions. 2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. erosion on disturbed soils for temporary or permanent control needs. 2. Store herbicides,pesticides and rodenticides in their original containers with the label, 3. Apply flocculants at the concentrations specified in the NC DWR List of Approved which lists directions for use,ingredients and first aid steps in case of accidental PAMS/Flocculants and in accordance with the manufacturer's instructions. poisoning. 4. Provide ponding area for containment of treated Stormwater before discharging offsite. HAZARDOUS AND TOXIC WASTE 3. Do not store herbicides,pesticides and rodenticides in areas where flooding is possible 5. Store flocculants in leak-proof containers that are kept under storm-resistant cover or 1. Create designated hazardous waste collection areas on-site. or where they may spill or leak into wells,Stormwater drains,ground water or surface surrounded by secondary containment structures. 2. Place hazardous waste containers under cover or in secondary containment. water. If a spill occurs,clean area immediately. 3. Do not store hazardous chemicals,drums or bagged materials directly on the ground. 4. Do not stockpile these materials onsite. %l41 EnvrnmenQtalQuality NCG-01 GROUND COVER & MATERIALS HANDLING (LOT 22) KENNERLY ENGINEERING&DESIGN.INC. EFFECTIVE DATE:11/12/2020 DATE: PAGE: MAY 2023 5 NON-INVASIVE PERMANENT SEEDING RECOMMENDATIONS FOR FALL NON-INVASIVE PERMANENT SEEDING RECOMMENDATIONS FOR LATE WINTER AND EARLY SPRING NON-INVASIVE PERMANENT SEEDING SEEDING MIXTURE SEEDING MIXTURE RECOMMENDATIONS FOR SUMMER Species Rate e Species Rate SEEDING MIXTURE Hard Fescue 15 2.5-3.5lbs/ lbs/acre" Centipede 5 lbs/acre Species Rate Switchgrass lbs/acre* cre* Indian Grass 5-7 Indian Woodoats 1.5-2.5 lbs/acre* Indian Woodoats 1.5-2.5Ibs/acre" Big Bluestem 5-7 lbs/acre* Virginia Wild Rye 4-6 lbs/acre* Virginia Wild Rye 4-6 lbs/acre* Indian Woodoats 1.5-2.5 lbs/acre* TEMPORARY SEEDING RECOMMENDATIONS Virginia Wild Rye 4-6 lbs/acre* FOR LATE WINTER AND EARLY SPRING "Depending upon mix with other species.See table 6.11.d *Depending upon mix with other species. g y Seeding Mixture from Chapter 6 of the NC Erosion and Sediment Control See table 6.11.d from Chapter 6 of the NC *Depending upon mix with other species.See table Species Rate(lb/acre) TEMPORARY SEEDING RECOMMENDATIONS FOR SUMMER TEMPORARY SEEDING RECOMMENDATIONS FOR FALL Planning and Design Manual. Erosion and Sediment Control Planning 6.11.d from Chapter 6 of the NC Erosion and Rye(grain) 120 Seeding Mixture Seeding Mixture and Design Manual. Annual lespedeza(Kobe in 50 Species Rate(lb/acre) Species Rate(lb/acre) Sediment Control Planning and Design Manual. Piedmont and Coastal Plain, Seeding Dates German millet 40 Rye(grain) 120 Coastal or Eastern Piedmont for Centipede-Sept. -May1 SeedingDates Korean in Mountains) p SeedingDates Omit annual lespedeza when duration of temporary cover is not to In the Piedmont and Mountains,a small-stemmed Coastal and Piedmont for Indian Woodoats and Virginia Mountains-July 15-Aug 15 extend beyond June. Sudangrass may be substituted at a rate of 50 lb/acre. Seeding Dates Mountains-Hard Fescue- Aug 1 -June 1 y Mountains—Aug.15-Dec.15 Wild Rye-Feb 15-April 1 Piedmont-Aug5-Oct 15 g Mountains-Switchgrass,Indian Grass,Big Seeding Dates Coastal Plain and Piedmont—Aug.15-Dec.31 Mountains for Indian Woodoats and Virginia Wild Rye- Seeding Dates Mountains—May 15-Aug.15 Bluestem-Dec 1 -April 15 Mountains—Above 2500 feet:Feb.15-May 15 Mulch March 1 -May 15 Maintenance: Piedmont—May 1-Aug.15 Piedmont and Coastal-Switchgrass,Indian Grass, Below 2500 feet:Feb.1-May 1 Coastal Plain—Apr.15-Aug.15 Apply 4,000 lb/acre straw.Anchor straw by tacking with Indian Woodoats and Virginia Wild Rye Big Bluestem-Dec 1-April 1 Piedmont—Jan.1-May 1 asphalt,netting,or a mulch anchoring tool.A disk with Maintenance: are both sun and shade tolerant. Coastal Plain—Dec.1-Apr.15 Mulch blades set nearly straight can be used as a mulch anchoring Significant maintenance may be required to obtain desired Coastal-Indian Woodoats and Virginia Wild Rye- Mulch Apply 4,000 lb/acre straw.Anchor straw by tacking with asphalt, tool. Sept 1 -Nov 1 Apply 4,000 lb/acre straw.Anchor straw by tacking with asphalt,netting, netting,or a mulch anchoring tool.A disk with blades set nearly Maintenance cover once centipede is planted.Acceptable for sodding. or a mulch anchoring tool.A disk with blades set nearly straight can be straight can be used as a mulch anchoring tool. Repair and refertilize damaged areas immediately.Topdress Maintenance: used as a mulch anchoring tool. Maintenance with 50 lb/acre of nitrogen in March.If it is necessary to Hard Fescue is not recommended for slopes>5%. Maintenance Refertilize if growth is not fully adequate.Reseed, extend temporary cover beyond June 15,overseed with 50 Ib/acre Kobe and Coastal or Korean Prefers shade. Refertilize if growth is not fully adequate.Reseed,refertilize and mulch of refertilize da and mulch immediately following erosion or M (PiedmontPlain) immediately following erosion or other damage. other damage. (Mountains)lespedeza in late February or early March. SEED BED PREPARATION: SEED BED PREPARATION: should be incorporated into the top 4-6 inches of soil.If a hydraulic seeder is LIMING-Apply lime according to soil test recommendations.If the pH(acidity)of the soil is not known,an application of ground LIMING-Apply lime according to soil test recommendations.If the pH(acidity)of used,do not mix seed and fertilizer more than 30 minutes before application. agricultural limestone at the rate of 1-1 2 tons/acre on coarse-textured soils and 2-3 tons/acre on fine-textured soils is the soil is not known,an application of ground agricultural limestone at the SURFACE ROUGHENING-If recent tillage operations have resulted in a loose usually sufficient.Apply limestone uniformly and incorporate into the top 4-6 inches of soil.Soils with a pH of 6 or higher rate of 1 to 1 z tons/acre on coarse-textured soils and 2-3 tons/acre on surface additional roughening may not be required,except to break up large need not be limed. fine-textured soils is usually sufficient.Apply limestone uniformly and clods.If rainfall causes the surface to become sealed or crusted,loosen it FERTILIZER-Base application rates on soil tests.When these are not possible,apply a 10-10-10 grade fertilizer at 700-1,000 incorporate into the top 4-6 inches of soil.Soils with a pH of 6 or higher need just prior to seeding by raking,harrowing,or other suitable methods for fine not be limed. grading.The finished grade shall be a smooth even soil surface with a loosen lb/acre.Both fertilizer and lime should be incorporated into the top 4-6 inches of soil.If a hydraulic seeder is used,do not FERTILIZER-Base application rates on soil tests.When these are not possible, uniformly fine texture.All ridges and depressions shall be removed and filled mix seed and fertilizer more than 30 minutes before application. apply a 10-10-10 grade fertilizer at 700-1,000 lb/acre.Both fertilizer and lime to provide the approved surface drainage.Planting is to be done immediately SURFACE ROUGHENING-If recent tillage operations have resulted in a loose surface additional roughening may not be after finished grades are obtained and seedbed preparation is completed. required,except to break up large clods.If rainfall causes the surface to become sealed or crusted,loosen it just prior to seeding by raking,harrowing,or other suitable methods for fine grading.The finished grade shall be a smooth even soil surface with a loosen uniformly fine texture.All ridges and depressions shall be removed and filled to provide the approved surface drainage.Planting is to be done immediately after finished grades are obtained and seedbed NOTES: preparation is completed. 1. Permanent seeding,sodding or other means of stabilization are required when all construction work is completed according to the NPDES timeframe's table. 2. A North Carolina Department of Agriculture soils test(or equal)is highly recommended to be obtained for all areas to be seeded,sprigged,sodded or planted. 3. Use a seeding mix that will produce fast growing nurse crops and includes non-invasive species that will eventually provide a permanent groundcover.Soil blankets may be used in lieu of nurse crops.Mat,tack or crimp mulch,as needed to stabilize seeded areas until root establishment.Mulch must be applied uniformly over the soil with a cover density of at least 80%. TEMPORARYSEEDING RECOMMENDATIONS 4. Ground cover shall be maintained until permanent vegetation is established and stable against accelerated erosion. PERMANENT SEEDING RECOMMENDATIONS -fi NORTH me,talQua1ity KENNERLY TEMPORARY & PERMANENT SEEDING RECOMMENDATIONS (LOT 22) i ENGINEERING&DESIGN.INC. 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Iiitx: .��,o -0�i e 2-3"Course Aggregate �f:•, P Construction: Maintenance: {{\ 1.Clear the entrance and exit area of all vegetation,roots,and other objectionable 1.Per NCG-01 inspect at least once a week and after each 1 inch or greater rainfall; material and properly grade it. make any required repairs immediately. 2.Place the gravel to the specific grade and dimensions shown on the plans,and 2.Maintain the gravel pad in a condition to prevent mud or sediment from leaving the smooth it. construction site.This may require periodic topdressing with 2 inch stone. 3.Provide drainage to carry water to a sediment trap or other suitable outlet. 3.Immediately remove all objectionable materials spilled,washed or tracked onto public 4.Use geotextile fabrics in order to improve stability of the foundation in locations roadways. subject to seepage or high water table. CONSTRUCTION ENTRANCE / EXIT Wire Fence r Filter Fabric 4'MIN. 11 SILT FENCE Steel Post-- Plastic or 8'Max.Standard Strength fabric with wire fence Wire Backfill trench 1 • 6'Max.Extra strength fabric without wire fence Wire Fence and Compact I/ i I thoroughly I Steel Post A■`l.■■■■■■■®L■■■■■■■.L■■■■■■■..■■■■■■■.Ii.■■■■■■•=I■1 _ '■!■■■■■■■■■!M■■■■■■■_1_■■■■■■■-_■■■■■■■-!-■■■■■■■■!■l ®■!■■■■■■■■ ,■■■■■■■1■`, Upslope ■■1■■■■■■■■ I 1■■■■■■■I■■I ■1®®®®®®®■ 1®■®®®®®�®` Plastic or W; 18 24„ li tvl r n:. TOP OF SILT FENCE I®®1®■®®®®®® 1 1®®®®®®®1®®� Wire ties 8"Min. MUST BEAT LEAST 1' 7■1■■■■■■■■ I 1■■■■■■■I■®r ABOVE WASHED THE TOP OF li■1■■■■■■■■ - 1■■■■■■■1■111► 24" ®®® THE STONE 1®®®®®®®■ 1111111111111111111111111 IF!■ ■ ■■■L■■ ■■■ __ _ _ !■ ■■■■ ■■■■ ■� 1 8„down&4„ STEEL FENCE POST :a11■1■11■1 1!1■■I If ■I■■I■I 1�1®®1 24„ forward along the WIRE FENCE MIMI=' ' trench HARDWARE CLOTH NNsikFRONT VIEW V Filter Fabric I I BURY WIRE FENCE, Construction: CROSS SECTION VIEW ALTER FABRIC, AND HARDWARE 1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. FILTER OF#57 ¢¢,, CLOTH IN TRENCH 2. Ensure that the height of the sediment fence does not exceed 24 inches above the ground.(Higher fences may WASHED STONE °°"o I STEEL FENCE POST impound volumes of water sufficient to cause failure of the structure) Maintenance: o �� I SET MAX 2'APART 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints.When joints are 1. Inspect sediment fences at least once a week and after each 1 °Q MIN.18"INTO SOLID oo GROUND necessary,securely fasten the filter cloth only at a support post with 4 feet minimum overlap to the next post. inch or greater rainfall.Make any required repairs immediately. °0 4g0�°:I 3'FILTER FABRIC 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts.Extend the 2. Should the fabric of a sediment fence collapse,tear, o O °� cegoSoR�o ON GROUND NOTES: wire mesh support to the bottom of the trench.Fasten the wire reinforcement,then fabric on the upslope side of the decompose,or become ineffective,replace it promptly. °`boo Yb� I 1. Hardware cloth andgravel should overlaythe silt fence at least 12 inches. fencepost.Wire orplastic zipties should have a minimum 50pound tensile strength. 3. Remove sediment deposits as necessarytoprovide adequate cb°o° °�°o°° 0 9 P q °o g o s,c)93go I 2. Stone outlets should be placed on low elevation areas of silt fence and 5. When a wire mesh support fence is used,space posts a maximum of 8 feet apart.Supports should be driven securely storage volume for the next rain and reduce pressure on the ,.,.y_° o 0°43)°,30 1 o oq°b'o°1 based on field conditions. into the ground a minimum of 24 inches. fence.Take care to avoid undermining the fence during - I1\ 6. Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence.Securely fasten the cleanouts. MAINTENANCE: filter fabric directly to posts.Wire or plastic zip ties should have a minimum of 50 pound tensile strength. 4. Remove all fencing materials and unstable sediment deposits 1. Per NCG-01,inspect outlet at lest once a week and after each 1 inch 7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope and bring the area to grade and stabilize it after the contributing BURY WIRE FENCE AND HARDWARE CLOTH BURY 6"OF UPPER EDGE OF or greater rainfall event.Complete any required repairs immediately. from the barrier. drainage area has been properly stabilized. FILTER FABRIC IN TRENCH 2. Freshen stone when sediment accumulation exceeds 6 inches. 8. Place 12 inches of fabric along the bottom and side of the trench. 3. Keep mesh free of debris to provide adequate flow. 9. Backfill the trench with soil placed over the filter fabric and compact.Thorough compaction of the backfill is critical to 4. Remove sediment when half of stone outlet is covered. silt fence performance. 5. Replace stone as needed to facilitate de-watering. 10. Do not attach filter fabric to existing trees. SECTION VIEW SILT FENCE SILT FENCE OUTLET EnronmenOtalQuality EROSION CONTROL MEASURES (LOT 22) KENNERLY ENGINEERING&DESIGN.INC. EFFECTIVE DATE:11/12/2020