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Home My WebLink AboutNCC221547_Site Plan or Location Map_20220421I~:l VICINITY MAP ��4.;eil CfwRel GnRa ; a y (NOT TO SCALE) NOTES: 1. SCOPE OF WORK CONSISTS OF THINNING TREES FOR FUTURE DEVELOPMENT. 2. NO PROPOSED GRADING. 3. RESIDENTIAL CONSTRUCTION WALL BE PERMITTED UNDER SEPARATE COVER. 4. CONCRETE WASHOUT NOT REQUIRED FOR PROJECT SCOPE. 5. SURVEY COMPLETED BY CE GROUP. INC. C-1.0 INDEX TO PLANS COVER SHEET C-1.1 PARCEL MAPS C-1.2 ESC PLAN LOT 9 C-1.3 ESC PLAN LOT 12 C-1.4 ESC PLAN LOT 13 D-1.0 NCG01 STANDARDS D-2.0 ESC DETAILS PREPARED BY: BENJAMIN J. DeWIT, PE CAR %�►r 2't4 BEA4 �• 01314 �•r��nn�`� 3�� EROSION AND SEDIMENT CONTROL PLANS LAUREL RIDGE SUBDIVISION LOTS 9, 12 AND 13 LOT 9 426 BROOK GREEN LN AKPAR 95013 LOT 12 497 BROOK GREEN LN AKPAR 95016 LOT 13 481 BROOK GREEN LN AKPAR 95017 EROSION AND SEDIMENT CONTROL PLANS CONSTRUCTION SEQUENCE 1. Submit a Land Disturbing Permit Application with erosion control plan and supporting documents at least 30 days prior to any land disturbing activity occurring. Obtain Certificate of Coverage for NCG01 Permit. 2. Organize pro —construction meeting with Chatham County Watershed Protection Department to review site plan prior to land disturbing activities. Land —Disturbing Permit and Approved Plans will be provided at this meeting. & Install perimeter silt fence with reinforced silt fence outletsi grovel construction entrance. and driveway pipe with outlet protection. Clear only as needed to install than initial measures. 4. Once erosion control measures are installed, land clearing may begin. Clear only within the limits of disturbance. 5. Complete self —inspections weekly and within 24 houm or a 1.0" or greater rainfall event. Reports shall be made available upon request. 6. Maintain all erosion and sediment control measures in good working order. Silt fence and other similar measures must be doomed out when they are half full. Replace stone at construction entrance as needed to avoid sediment loss. Clogged silt fence outlets must be refreshed/roplooed. Silt fence cannot have holes or team. 7. Establish permanent ground cover sufficient to restrain erosion Immediately following completion of clearing operations. Tress may be mulched and spread evenly on site and/or permanent seed to stabilize disturbed areas. & Reinstall/refresh driveway pipe outlet dissipater pad per specified dimensions to ensure post —construction effectiveness. 9. Once grading and construction activities are complete, temporary measures are removed, and the site is permanently stabilized, call Chatham County Watershed Protection Department to schedule the final inspection. 10. Once the final inspection is complete the permit will be dosed and no additional ground disturbing activities can occur. Obtain Notice of Termination for NCG01 Permit. 11. Residential construction shall be permitted under separate cover and is not included in thb project scope. LAUREL RIDGE DEVELOPMENT, INC. IDATE: 3.21.20221 I SHEET: C-1.0 I -7. EXISTIN33S PFE -- S � = -- - �, }' i + 1 + +� ' Ir •i I !' ' I I II 1 `� � .r�rff f r� r f'�f ___ ..- - - - -_. - t- -el r f ^�— ~ ' r __�� --- • r r r -1 1 I I ! r � I 1L 1 �-- _y_-_��__-��."rY y�_J � _ ■, �I r r I I + I I -- —— _ __---- N. LOT 9 426 BROOK GREEN LN AKPAR 95013 LOT 12 497 BROOK GREEN LN AKPAR 95016 LOT 13 481 BROOK GREEN LN AKPAR 95017 PREPARED BY: BENJAMIN J. DeWIT, PE r�`��sr, CAR ��►r ��24��teli�py �Z �tt BE114 'F�7 04314 � � 1 1 1 � 1 1 JURISGC710P�AL •", - _ -_ ` -- — -- - — — — - _ - M !1 1 1 MrLAp `_ _ ----- -- --- - �, 111, ` Itl l 11 it {' • - — — w 4FODICTROKk ..� STREW r �11 11 t 1 11 �111 1 ' : i • • s + : ; L STREAM BUFF _ A 1 i 1 11 li 1 1 1 •.. 1 T_ J4 _4,,3c,IC7,c*ft - / - I D13 wy EBUFFER FLrW "A7AW 001lr[114RY — PRu-wry LINE- _ SB' STREW BINFER o f .fJFi><SdCT�ipL •'•-f r{//fi Jf ff frfJ rff� WETLAN3 1121 _ • -` w w � : ti \ JU9a:#GFI01'LY � _ -- � — - � f � 1 1 r � f r r r STW-Amf_- 1g — — ~� ` = '� �� of IMEfIr4i61 — \ `A JI iR1S{11CnONk1_ _\ R ` — ' ' \ _ ` — BlR-FER _ STREAM PR9PERTY LICE EROSION AND SEDIMENT CONTROL PLANS PARCEL MAPS (DATE: 3.21.202� LAUREL RIDGE DEVELOPMENT, INC. I SHEET: C-1.1 I BROOIKG EEIJLl� ' EXISTING 36" PIPE CHECK DAM CLASS "B" RIP -RAP DISSIPATOR / WITH FILTER FABRIC LINER _ I DFrAIN IGEIARIEAll1: ! � (STONE OR WATTLE) / 6'Lx3'Wx2'D --- ___ 0.111 iAC E I / �� 0LF 18" RCP' — — -_ \ — \ 1 II I 1 I 1 i I i I I SILT FENCE OUTLET _ — i / / DRIVEWAY PIPE I 1 I 1 1 I 1 I I I I 11 I I ROCK FILTER BERM / /' / / / /' / 430 TEMPORARY SILT FENCE- 1 I I l l I 12'x50'GRAVEL EONSTRU TION //'//i I DRAINAQ��A�. 0.32PC;`RrF� _J \ PROPERTY LINE TREE PROTECTION FENCE —DRAIIyAGE PAR-EA-2 0- g-ACRES/ / / /' // // / ��y j / / LIMITS OF DISTURBANCE ---------- --- / /0RO,FnOS9D DIST/URPrED,'' — --- � —' r// AD`R S 1.�2ACS `\ \ \ --_— \\ _/ �/ / /--\--4zo- 1 \ PREPARED BY: BENJAMIN J. DeWIT, PE _ :pten8ra: 4 QW4 = EROSION AND SEDIMENT CONTROL PLANS LOT 9 0 40 80 Feet DATE: 3.21.2022 LAUREL RIDGE DEVELOPMENT, INC. 1"=40' SHEET C-1.2 - - - - - - - - PROPERTY LINE IN JURISDICTIONAL WETLAND ------ -- /pRQ'POSE/D/ bVS/TLABED/ Xc,*R'E/S: /(�T�AORES 50' WETLAND BUFFER \ \ \ SILT FENCE OUTLET LIMITS OF DISTURBANCE `\ ` I I JURISDICTIONAL STREAM Q,o 12' x 50' GRAVEL \ \ \ \ \ \ \ 50' STREAM BUFFER \ \ \\ \ \ \ \\ \ CONSTRUCTION ENTRANCE TEMPORARY SILT FENCE ago CLASS"B" RIP -RAP DISSIPATOR \ \ \ \ \ \ \ \ WITH FILTER FABRIC LINER 61x3'Wx2'D `20LF18"RCP \ \ \ DRIVEWAY PIPE CHECK DAM \� (STONE OR WATTLE) ago PREPARED BY: BENJAMIN J. DeWIT, PE otenaraJ 4 oau = EROSION AND SEDIMENT CONTROL PLANS LOT 12 LAUREL RIDGE DEVELOPMENT, INC. 0 40 80 Feet 1"=40' DATE: 3.21.2022 SHEET C-1.3 JURISDICTIONAL WETLAND \ PROPOSED DISTURBED 50' WETLAND BUFFER ACRES: 1.37 ACRES. �\ ` 390 13. \ \ \ \ \ \ SILT FENCE OUTLET FLOOD HAZARD BOUNDARY — — — — \ PROPERTY LINE \ \\ \ \ \\ \ \ \ \ \ \ \ \ JURISDICTIONAL WETLAND - - LIMITSOFDISTURBANCE \\ \ `\ \ \\ \\ \\ \\\ 50'WETLANDBUFFER- _ \TEMPORARY SILT FENCE 12'X50'GRAVEL \ \ \ \ \ \\ \ \\ \ \\ _ CONSTRUCTION ENTRANCE \ \ \ \\\ \ \ \\ \�----- _ CLASS "B" RIP -RAP DISSIPATOR WITH FILTER FABRIC LINER — _ CHECK DAM — _ (ROCK OR WATTLE) 20LF18"RCP\\_ DRIVEWAY PIPE \ \\ \ \ \\ \\ \\ \ \ /\\ \\ \ \ \\ \�� —_— \�� 410 \ \ \\ —-------------- - 420 PREPARED BY: BENJAMIN J. DeWIT, PE EROSION AND SEDIMENT CONTROL PLANS LOT 13 LAUREL RIDGE DEVELOPMENT, INC. 0 40 80 Feet 1 = 40' DATE: 3.21.2022 SHEET C-1.4 GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCGO1 CONSTRUCTION GENERAL PERMIT Implementing the details and specifications on this plan sheet will result in the construction activitybeing considered compliant with the Ground Stabilization and Materials Handling g p g sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions and the delegated authority having jurisdiction. SECTION E: GROUND STABILIZATION Required Ground Stabilization Timeframes Stabilize within this Site Area Description many calendar Timeframe variations days after ceasing land disturbance (a) Perimeter dikes, swales, ditches, and 7 None perimeter slopes (b) High Quality Water 7 None (HQW) Zones (c) Slopes steeper than If slopes are 10' or less in length and are 3:1 7 not steeper than 2:1, 14 days are allowed -7 days for slopes greater than 50' in length and with slopes steeper than 4:1 -7 days for perimeter dikes, swales, (d) Slopes 3:1 to 4:1 14 ditches, perimeter slopes and HQW Zones -10 days for Falls Lake Watershed -7 days for perimeter dikes, swales, (e) Areas with slopes ditches, perimeter slopes and HQW Zones flatter than 4:1 14 -10 days for Falls Lake Watershed unless there is zero slope Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner to render the surface stable against accelerated erosion until permanent ground stabilization is achieved. (GROUND STABILIZATION SPECIFICATION Stabilize the ground sufficiently so thTrain will not dislodge the soil. Use one of the techniques in the table below: 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. PREPARED BY: BENJAMIN J. DeWIT, PE EQUIPMENT AND VEHICLE MAINTENANCE 1. Maintain vehicles and equipment to prevent discharge of fluids. 2. Provide drip pans under any stored equipment. 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. 4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible). 5. Remove leaking vehicles and construction equipment from service until the problem has been corrected. 6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials. TIER, BUILDING MATERIAL AND LAND CLEARING WASTE 1. Never bury or burn waste. Place litter and debris in approved waste containers. 2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes. 3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or wetland. 5. Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers. 6. Anchor all lightweight items in waste containers during times of high winds. 7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow. 8. Dispose waste off -site at an approved disposal facility. 9. On business days, clean up and dispose of waste in designated waste containers. PAINT AND OTHER LIQUID WASTE 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 3. Contain liquid wastes in a controlled area. 4. Containment must be labeled, sized and placed appropriately for the needs of site. 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. DRTABLE TOILETS 1. Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind silt fence or place on a gravel pad and surround with sand bags. 2. Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas. 3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace with properly operating unit. EARTHEN STOCKPILE MANAGEMENT 1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other alternatives are reasonably available. 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of stockpile. 3. Provide stable stone access point when feasible. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control needs. ' •`I� NORTH CAROLINA Environmental Quality ONSITE CONCRETE WASHOUT STRUCTURE WITH LINER Ma e6a � ~ � Ii�IM L1O■O ■ IV R11�Q � 1■1 ��Q ML�.MIb�O mwia`w av: "n an ay sanaE VA41tlIIT STa11CTIlaE Aia��M` CONCRETE WASHOUTS 1. Do not discharge concrete or cement slurry from the site. 2. Dispose of, or recycle settled, hardened concrete residue in accordance with local and state solid waste regulations and at an approved facility. 3. Manage washout from mortar mixers in accordance with the above item and in addition place the mixer and associated materials on impervious barrier and within lot perimeter silt fence. 4. Install temporary concrete washouts per local requirements, where applicable. If an alternate method or product is to be used, contact your approval authority for review and approval. If local standard details are not available, use one of the two types of temporary concrete washouts provided on this detail. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk sections. Stormwater accumulated within the washout may not be pumped into or discharged to the storm drain system or receiving surface waters. Liquid waste must be pumped out and removed from project. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be shown that no other alternatives are reasonably available. At a minimum, install protection of storm drain inlet(s) closest to the washout which could receive spills or overflow. 7. Locate washouts in an easily accessible area, on level ground and install a stone entrance pad in front of the washout. Additional controls may be required by the approving authority. 8. Install at least one sign directing concrete trucks to the washout within the project limits. Post signage on the washout itself to identify this location. 9. Remove leavings from the washout when at approximately 75% capacity to limit overflow events. Replace the tarp, sand bags or other temporary structural components when no longer functional. When utilizing alternative or proprietary products, follow manufacturer's instructions. 10. At the completion of the concrete work, remove remaining leavings and dispose of in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused by removal of washout. HERBICIDES, PESTICIDES AND RODENTICIDES 1. Store and apply herbicides, pesticides and rodenticides in accordance with label restrictions. 2. Store herbicides, pesticides and rodenticides in their original containers with the label, which lists directions for use, ingredients and first aid steps in case of accidental poisoning. 3. Do not store herbicides, pesticides and rodenticides in areas where flooding is possible or where they may spill or leak into wells, stormwater drains, ground water or surface water. If a spill occurs, clean area immediately. 4. Do not stockpile these materials onsite. 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. NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING (EFFECTIVE: 04/01/19I ..•iN C,aa,,� '-00-0*6st►p ■° 8l.AL ff 4434 EROSION AND SEDIMENT CONTROL PLANS NCG01 REQUIREMENTS LAUREL RIDGE DEVELOPMENT, INC DATE: 3.21.2022 SHEET D-1.0 PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION A: SELF -INSPECTION Self -inspections are required during normal business hours in accordance with the table below. When adverse weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be performed upon the commencement of the next business day. Anytime when inspections were delayed shall be noted in the Inspection Record. Frequency Inspect (during normal Inspection records must include: business hours) (1) Rain gauge Daily Daily rainfall amounts. maintained in If no daily rain gauge observations are made during weekend or good working holiday periods, and no individual -day rainfall information is order available, record the cumulative rain measurement for those un- attended days (and this will determine if a site inspection is needed). Days on which no rainfall occurred shall be recorded as "zero." The permittee may use another rain -monitoring device approved by the Division. (2) E&SC At least once per 1. Identification ofthe measures inspected, Measures 7 calendar days 2. Date and time ofthe inspection, and within 24 3. Name ofthe person performingthe inspection, hours of a rain 4. Indication of whetherthe measures were operating event> 1.0 inch in properly, 24 hours S. Description of maintenance needsfor the measure, 6. Description, evidence, and date of corrective actions taken. (3) Stormwater At least once per 1. Identification ofthe discharge outfalls inspected, discharge 7 calendar days 2. Date and time ofthe inspection, outfaIIs (SDOs) and within 24 3. Name ofthe person performingthe inspection, hours of a rain 4. Evidence of indicators of Stormwater pollution such as oil event >1.0 inch in sheen, floating or suspended solids or discoloration, 24 hours S. Indication ofvisible sediment leavingthe site, 6_ Description, evidence, and date of corrective actions taken_ (4) Perimeter of At least once per If visible sedimentation is found outside site limits, then a record site 7calendar days ofthe following shall he made: and within 24 1. Actions taken to clean up or stabilize the sediment that has left hours of a rain the site limits, event> 1.0 inch in 2. Description, evidence, and date of corrective actions taken, and 24 hours 3. An explanation astothe actionstaken to control future releases. (5) Streams or At least once per If the stream or wetland has increased visible sedimentation or a wetlands onsite 7calendar days stream has visible increased turbidity from the construction or offsite and within 24 activity, then a record ofthe following shall be made: (where hours of a rain 1. Description, evidence and date of corrective actions taken, and accessible) event � 1.0 inch in 2. Records ofthe required reports tothe appropriate Division 24 hours Regional Office per Part III, Section C, Item (2)(a) of this permit. (6) Ground After each phase 1. The phase of grading (installation of perimeter E&SC stabilization of grading measures, clearing and grubbing, installation of storm measures drainage facilities, completion of all land -disturbing activity, construction or redevelopment, permanent ground cover). 2. Documentation that the required ground stabilization measures have been provided within the required timeframe or an assurance that they will be provided as soon as possible. NOTE: The rain inspection resets the required 7 calendar day inspection requirement. PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION B: RECORDKEEPING 1. E&SC Plan Documentation The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC plan shall be kept on site and available for inspection at all times during normal business hours. Item to Document Documentation Requirements (a) Each E&SC measure has been Installed Initial and date each E&SC measure on a copy and does not significantly deviate from the ofthe approved E&SC plan orcomplete, date locations, dimensions and relative elevations and sign an inspection report that lists each shown on the approved E&SC plan. E&SC measure shown on the approved E&SC plan. This documentation is required upon the initial installation ofthe E&SC measures or if the E&SC measures are modified after initial installation. (b) A phase of grading has been completed. Initial and date a copy ofthe approved E&SC plan or complete, date and sign an inspection report to indicate completion ofthe construction phase. (c) Ground cover is located and installed Initial and date a copy ofthe approved E&SC in accordance with the approved E&SC plan or complete, date and sign an inspection plan. report to indicate compliance with approved ground cover specifications. (d) The maintenance and repair Complete, date and sign an inspection report. requirements for all E&SC measures have been performed. (e) Corrective actions have been taken Initial and date a copy ofthe approved E&SC to E&SC measures. plan or complete, date and sign an inspection report to indicate the completion ofthe corrective action. 2. Additional Documentation to be Kept on Site In addition to the E&SC plan documents above, the following items shall be kept on the site and available for inspectors at all times during normal business hours, unless the Division provides a site -specific exemption based on unique site conditions that make this requirement not practical: (a) This General Permit as well as the Certificate of Coverage, after it is received. (b) Records of inspections made during the previous twelve months. The permittee shall record the required observations on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required elements. Use of electronically -available records in lieu of the required paper copies will be allowed if shown to provide equal access and utility as the hard -copy records. 3. Documentation to be Retained for Three Years All data used to complete the a-NOI and all inspection records shall be maintained for a period of three years after project completion and made available upon request. [40 CFR 122.41] PART II, SECTION G, ITEM (4) DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather). Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met: (a) The E&SC plan authority has been provided with documentation ofthe 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. PREPARED BY: BENJAMIN J. DeWIT, PE PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION C: REPORTING 1. Occurrences that Must be Reported Permittees shall report the following occurrences: (a) Visible sediment deposition in a stream or wetland. (b) Oil spills if: • They are 25 gallons or more, • They are less than 25 gallons but cannot be cleaned up within 24 hours, • They cause sheen on surface waters (regardless of volume), or • They are within 100 feet of surface waters (regardless of volume). (c) Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S. 143-215.85. (d) Anticipated bypasses and unanticipated bypasses. (e) Noncompliance with the conditions of this permit that may endanger health or the environment. 2. Reporting Timeframes and Other Requirements After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate Division regional office within the timeframes and in accordance with the other requirements listed below. Occurrences outside normal business hours may also be reported to the Department's Environmental Emergency Center personnel at (800) 858-0368. Occurrence Reporting Timeframes (After Discovery) and Other Requirements (a) Visible sediment • Within 24 hours. an oral or electronic notification. deposition in a • Within 7calendar days, a report that contains a description of the stream orwetiarxf sediment and act ions taken to address the cause of the deposition. Division sta ft may waive the requirement fora written report an a case by case basis. • If the stream Is named on the NC 403[d) list as Impaired for sediment - related causes, the permittee may he required to perform additional monitadrig, inspectians or apply riare stringent practices if staff determine that additional requirements are needed to assure compliance with the federal or state im aired -waters conditions. (bj Oil spills and Within 24hours. an araI or electronic notification. The notification release of shall includeiaformstlon asoutthe date, time, nature, volume and hazardous location of the spill or release. substances per Item 1(b) (c) above (c) Anticipated A report at least ten days before the dote of the bypass; d' possible. bypasses 140 CFR The report5hd11 include an eyaIudtion of the anticlpated quality and 122.41(m)[311 effect of the bypass. (dl unanticipated Within 24 hours, an oral or elect mnlcnotification. bypasses 140 Cl-H Within 7calendar days, a report that Includes an evaluation of the 122.41(m)[3)I qua Iit y and effect art he bypass. (cl Noncompliance Within 24 hours, an oral or elect ronlcnotification. with the conditions • Within 7 calendar days, a report that contains a description of the of this permit that noncompliance, and its to uses; the period of noncompliance, may endanger including ei dates and times, and if the noncompliance has not health ur the been corrected, the arttiupated time noncompliance is expilto envirormQrtt)4l7 cuntinue: and steps taken or planned to reduce, eliminate, and CFR 122.41(I)(l)j prevent reoccurrence of the noncompliance. 140 CFR • Division staff may waive the requirement for a written report an a case -by -case basis. NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/191 EROSION AND SEDIMENT CONTROL PLANS NCG01 REQUIREMENTS LAUREL RIDGE DEVELOPMENT, INC. DATE: 3.21.2022 SHEET D-1.1 TCP ELEVATION CF STDROWA.TER 'j I' .57 WASHED STONE -_ 1 MAX. t VA IES EXISTMOO SLOPE—' f1 kp-�A JAkIE SIDE VIEW — EAISDNI; -LllPE EXISTING — SLGPE� VAM L< DESIGN OF SPILLWAYS . DkA•INA(:E AWEA WEJR LEN DTI} (ACRES) LET KEYED RIP RAP t a #.57 WA.SHEQ SPINE 9NMEN51{M+S SHOWN A4E MI-YINUM FRONT VIEW MATT ING i L = THE 016TANCE SUCH THAT POINTS RA61LAZATICN A ANO B ARE OF EAVILL ELEVATION PROFILE VIEW _ CHATHAM COUNTY •Oslo �1 n�r.n.azvsex STANDARD ROCK CHECK DAM 7- 5FSEE.i 1 ofI 3 TIMES INNER DIAMETER (ILD J RAP APRON NOTE5: 1) L = THE LE•41,TH OF THE RIPRAF APRON. 2) d I.S TIMES THE MAXIMUM STCJNE DIAMETER BUT Nr•T LESS THAN 5" (IrwhAt). — — — — -•.� 3} A FILTERBLANKET 0R FILTER S L BE L INSTALLED 3ETNEEN THE RIP -RAP AND SOIL FOUND ATION -I-E d FILTER SECTION 'A -At FABRIC CHA1TRAM COUNTY n�iv..vc3mex STANDARD PIPE OUTLET (NO DEFINED CHANNEL) , PREPARED BY: BENJAMIN J. DeWIT, PE CA =o: oia moo' WMA f= 3i�IjAd177t 5D' MIN AND SUFFICIENT TO KECP SEDIMENT ON SLTE R0- 'p Exi5T11uC 2- - T' STONE TO BE USED HOADVVAY {SURGE STONE OR11RAILROAD PALA5T]PC O aP cxR70'0 o0aabccv ov PLAN SILT FENCC (SEE NOT-- .2 FABRIC UNDER STONE NOTES 1. THL$ DETAIL APPLIES ONLY TD ENTRANCES OF tUDIV IDUAL SINGLE FAMILY RESIDENTIAL UNITS 2. SILT FENCE SHOULD BE INSTAILEO TO ENSURE CONSTRUCTION FNTRMFCF IS USFF! n 0055 SECTION CHA TIRAM COUNTY nsrnn. xcnmsx �— RESIDENTIAL CONSTRUCTION ENTRANCEA SHEET I of I 115E R MINIMUM OF 2 STAKES 1 bAl UF5Li— — ---- I FLOW 13 J5E A MINIMUM GF 4 STAKE; ik V?TTIN S l0 MSLOPE-> PLAN VIEW MIN 2 STAKES (IN L'P51-OPE MINIMUM 4 STA.F.EE ON DV"SL[IFE CROUHD MATTING I —I I _ - V-DITCH SECTION VIEW MIN 2 STAKES ON JvSL17 E--� MINIMUM 4 STAKES ON nOWNSLOPE [ROUND MAT TRAPEZOIDAL n TRAPEZOIDAL DITCH SECTION VIEW CHATHAM COUNT1' vn�l�f kPli�.l EROSION AND SEDIMENT CONTROL PLANS ESC DETAILS LAUREL RIDGE DEVELOPMENT, INC. ISOMETRIC vlEw MATTING NOTES I) USE A MINIMUM 12 INCH DIAMETER EXCELSIOR WATTLE. 2) !1S£ i4 INCH LONG WDO)EN STAKES WITH A Z`x%" NOMINAL ORO-�. SECTION. A) INSTALL WATTLE(S) TG A HEIGHT ON SLOPE 50 FLOW WILL NOT WASH AROUND WATTLE AND SCOUR SLOPES, OR AS DIRECTED 5}INSTALL A MINIMUM OF TWO IJaSLOPE STAKES AND FOUR ❑OWNSLOPE STAKES AT AN ANGLE TO WEDGE WATTLE TO GROUND AT BOTTOM 5) PRONDE STAPLES MADE OF 0.125 INCH DIAMETER STEEL WIRE FORMED INTO A J—SHAPE NOT LESS THAN 12 INCHES IN LENGTH. INSTALL STAPLES APPROXIMATELY EVERY 1 LINEAR FDOT ON BOTH SII]E5 CIF WATTLE ANO AT EACH END TO 7ECIJRE IT TO THE SCNL B} AFTER INSTALLATI ON OF STAPLES, CHINK ANY CAPS BETWEEN WATTLE AND GROUNC WITH MATTING WEAVE STAPLES THROUGH MESH CASING OF WATTLE .` MarnN4 �1 �pl APLES STAPLE$ STAPLE INSTALLMENT SECTIONS STANDARD WATTLE STAKE ANGLE STAKED TO WEDGE WATTLE ONTO' GROUND wAm!5 MATnNL= STAKE INSTALLMENT CROSS SECTION ner,n.vT,�x iU19-019 SHEET F of 1 DATE: 3.21.2022 SHEET D-2.0 8'-0" M01MUM VARIABLE AE DIRECTED 5Y THE ENGINEER �57EEL POST MINIMUM 10 GAUGE SILT FENCE F1=kl. il�_INTERME31ATE '�:TALLED TO =E_,ILINE WIRES 411RE FI,'i« TCI I.KRINsIMUM i2Y2 GAOUE WIRES FRONT VIEW TEEL PnsT WOVEN WIRE FA6RIC -SILT FENCE FABRIC NOTES: USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT EXCEED 114 ACRE PER 1130 k QF FENCE AND o NEVER IN AREAS OF CONCENTRATED FLOW. 7) OVERLAP 1:< INCHES WHEN SPUCING FABRIC, 3) FOR REPAIR OF SILT FENCE FAILURES USE 7ETAIL 04000.23L 'IL J� CHATHAM COUNT V T nh TH h CAI L'A 1^1 C H ATHAM CQUNTY onaH esn.n3 �1 •ti�COMVACTEO FILL - 6° MINIMUM OOVER OVER SKIRT ANCHOR SKIRT AS UIREVED 3Y ENGANEER SIDE VIEW STANDARD SILT FENCE Species Rate (lb/acre} Dates Rye (grain) Annual le.s edeza (Kobe) 120 50 January 1 - May 1 German millet 40 May 1 -August 15 Rye (grain) 120 August 15 - December 31 Soil Amendments Follow recommendations of soil tests or apply 2,000 lb/acre ground agriculnual limestone and 750 lb/acre 10-10-10 fertilizer. Mulch Apply 4,000 lb/acre straw. Anchor straw by tacking With asphalt, netting, or a mulch anchoring tool_ A disc with blades set nearly straight can be used as a mulch anchoring tool - Maintenance Refertilize if growth is not fally adequate. Reseed, refextilize and mulch immediately_ following erosion or other damage_ nsren.=u R Lhm-013 sy-= 1 of 1 nsreu. xcamax TEMPORARY SEEDING/MULCHING SPECIFICATIONS 2M-nO Sf= 1 of PREPARED BY- BENJAMIN J. DeWIT, PE ALL DISTURBED AREAS March 1 - August 31 September 10 - February 28 5o# Tall Fescue 5o# 'Fall Fescue 10# Centipede 10# Centipede 25# Sermudagrass (hulled) 354 Bermudagrass (unhulled) 5oo# Fertilizer 50o4 Fertili zex 4000# Limestone 4000# Limestone WASTE AND BORROW AREAS March 1- Augmt 31 Se tembet 10 - Febm 28 -54 Tall Fescue 75# Tall Fescue 25# Bermudagrass (hulled) 25# Bermudagrass (unhulled) 500# Fertilizer 5004 Fertilizer 400D# I.ime.stone 40004 Limestone Note- 50# of Bahiagrass may be substituted for either Centipede or Bermudagrass only upon request. On cut and fill slopes 2.1 or steeper Centipede shall be applied at the rate of 5 lb/acre and add. 20# of Sericea Lespedeza from January 1 - December 31 _ Fertilizer shall be 10-20-20 analysis. A different analysis of fertilizer may be used provided the 1-2-2 ratio is mauitained and the rate of application adjusted to provide the same amount of plant food as a 10-20-20 analysis and as directed. CHATHAM COUNTY o.=H nazi . PERMANENT SEEDING/ MULCHING SPECIFICATIONS EROSION AND SEDIMENT CONTROL PLANS ESC DETAILS LAUREL RIDGE DEVELOPMENT, INC. N16-021 sf=r 1 of DATE: 3.21.2022 SHEET D-2.1 GLASS 1 RIPRAP (5EE 5ECT1QN THRU RASIN F9EL-QW) ✓f ;:'I" E RPPRAP HEAQ)NAH WASHED STONE, 1'-0" THIN{ x S—O" HIGH YINIMUM J � l PERSPECTIVE VIEW FLOOD STORAGE ZONE—\ -" A2 n. "EAR TO BE DISTURHED (CUT, FILL, ETC.) CFiATHANS COU.NrN a f}I1111 +*II Ik114; ■A7�MM TPmT Wrlrrf a —FM PREPARED BY: BENJAMIN J. DeWIT, PE MAXIVUhA SEf}MENT DEPTH !CLEAN OUT POINT) I- —CLA55 1 RI�RAP — #57 WASHED STONE NOTES; I_ GRAVEL � RIPRAP FILTER UER4 9A51N ^ETAIL IS �E$IONEO TO PROTEST EXISTIN' FNIfPE INVERTS THAT DRAIN FIVE ACRES OR LESS. DIMENSIONS ARE Q141 dUM ACCEPTABLE QNLESS "OTHERW5E NOTED. RIPRA�-- I-IFA rIUd AI I SECTION THRU BASIN, FILTER AND CULVERT WIPE S 1 Ali D RD ROCK FILTER BEF12�1 (PIPE INLETS) EROSION AND SEDIMENT CONTROL PLANS ESC DETAILS LAUREL RIDGE DEVELOPMENT, INC. NATURAL GROUND nFr�n, r.*�mEx �OL3-043 a`�f 1 of DATE: 3.21.2022 SHEET D-2.2