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HomeMy WebLinkAboutSW6220801_Plansheet C9.1 - Misc. Detail_20221026DocuSign Envelope ID: AEE5B6BB-BE51-4AA4-946F-9F9D20DAD5B2 GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCGO1 CONSTRUCTION GENERAL PERMIT Implementing the details and specifications on this Ian sheet will result in the construction activity being p g p p Y g considered compliant with the Ground Stabilization and Materials Handling sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions and the delegated authority having jurisdiction. SECTION E: GROUND STABILIZATION Required Ground Stabilization Timeframes Stabilize within this Site Area Description many calendar days Timeframe variations after ceasing land disturbance (a) Perimeter dikes, swales, ditches, and perimeter 7 None slopes (b) High Quality Water (HQ)A) 7 None Zones If slopes are 10' or less in length and are (c) Slopes steeper than 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 (d) Slopes 3:1 to 4:1 14 -7 days for perimeter dikes, swales, ditches, perimeter slopes and HOW Zones -10 days for Falls Lake Watershed -7 days for perimeter dikes, swales, ditches, (e) Areas with slopes flatter perimeter slopes and HOW Zones than 4:1 14 -10 days for Falls Lake Watershed unless there is zer slope Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner to render the surface stable against accelerated erosion until permanent ground stabilization is achieved. GROUND STABILIZATION SPECIFICATION Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table below: Temporary Stabilization Permanent Stabilization • Temporary grass seed covered with straw or • Permanent grass seed covered with straw or other mulches and tackifiers other mulches and tackifiers • Hydroseeding • Geotextile fabrics such as permanent soil • Rolled erosion control products with or reinforcement matting without temporary grass seed • Hydroseeding • Appropriately applied straw orother mulch • Shrubs or other permanent plantings covered • Plastic sheeting with mulch • Uniform and evenly distributed ground cover sufficient to restrain erosion • Structural methods such as concrete, asphalt or retaining walls • Rolled erosion control products with grass seed POLYACRYLAMIDES (PAMS) AND FLOCCULANTS 1. Select flocculants that are appropriate for the soils being exposed during construction, selecting from the NC DWR List of Approved PAMS/Flocculants. 2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. 3. Apply flocculants at the concentrations specified in the NC DWR List of Approved PAMS/Flocculants and in accordance with the manufacturer's instructions. 4. Provide ponding area for containment of treated Stormwater before discharging offsite. 5. Store flocculants in leak -proof containers that are kept under storm -resistant cover or surrounded by secondary containment structures. SECTION A: SELF -INSPECTION EQUIPMENT AND VEHICLE MAINTENANCE 1. Maintain vehicles and equipment to prevent discharge of fluids. 2. Provide drip pans under any stored equipment. 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. 4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible). 5. Remove leaking vehicles and construction equipment from service until the problem has been corrected. 6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials. LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE 1. Never bury or burn waste. Place litter and debris in approved waste containers. 2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes. 3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or wetland. 5. Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers. 6. Anchor all lightweight items in waste containers during times of high winds. 7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow. 8. Dispose waste off -site at an approved disposal facility. 9. On business days, clean up and dispose of waste in designated waste containers. PAINT AND OTHER LIQUID WASTE 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 3. Contain liquid wastes in a controlled area. 4. Containment must be labeled, sized and placed appropriately for the needs of site. 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. PORTABLE TOILETS 1. Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind silt fence or place on a gravel pad and surround with sand bags. 2. Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas. 3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace with properly operating unit. EARTHEN STOCKPILE MANAGEMENT 1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other alternatives are reasonably available. 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of stockpile. 3. Provide stable stone access point when feasible. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control needs. ONSITE CONCRETE WASHOUT STRUCTURE NTH LINER L0001,1000 00 0 o O oo o V1 O o 0 0 o sccna 9-e A wALT YN!® xeVR 4YpNS (M.) owl wxc xva 9r ' Yw, gcaa n-a a srNus i. Acrou Ewnox ¢eaa•Y x am v�wwr � wxr xvam 9Lxra z x maatrt Y�vwr sxucx'Ys avu . Y:uw,oc..rH ¢ssY•o n r•n xono oEY• (w'xN •U • wwaY•o Y•Y M Ya• Y•/aa sa• z na aaxrt YA9Wr smsmts YYu •i "'"'^ • aAa n[ sAYc ewe " ro rNXro xBf •E YpuD IID/Q SU• x'MES 7A MW.LE NYYYAE XOIgl6 flaA4rr YM A s x stxcuas rxarr. r.aY 12 xY[s 6 amxr•. ELUL Y Y xo xY� ro • wa 21A0 • Y mn"'nn xY RrtOW GRADE WASHOUT STRUCTURE xor ro serE 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 PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING Self -inspections are required during normal business hours in accordance with the table below. When adverse weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be performed upon the commencement of the next business day. Any time when inspections were delayed shall be noted in the Inspection Record. Frequency Inspect (during normal Inspection records must include: business hours) (1) Rain gauge Daily Daily rainfall amounts. maintained in If no daily rain gauge observations are made during weekend or good working holiday periods, and no individual -day rainfall information is order available, record the cumulative rain measurement for those un- attended days (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 whether the measures were operating event> 1.0 inch in properly, 24 hours 5. Description of maintenance needs for the measure, 6. Description, evidence, and date of corrective actionstaken. (3) Stormwater At least once per 1. Identification ofthe discharge outfalls inspected, discharge 7 calendar days 2. Date and time of the inspection, outfalls (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 5. Indication of visible sediment leaving the site, 6. Description, evidence, and date of corrective actions taken. (4) Perimeter of At least once per If visible sedimentation is found outside site limits, then a record site 7 calendar days of the following shall be made: and within 24 1. Actionstaken to clean up or stabilize the sedimentthat has left hours of a rain the site limits, event> 1.0 inch in 2. Description, evidence, and date of corrective actions taken, and 24 hours 3. An explanation as to the actions taken to control future releases. (5) Streams or At least once per Ifthe stream or wetland has increased visible sedimentation or a wetlands onsite 7 calendar days stream has visible increased turbidity from the construction or offsite and within 24 activity, then a record ofthe following shall be made: (where hours of a rain 1. Description, evidence and date of corrective actions taken, and accessible) events 1.0 inch in 2. Records ofthe required reports to the appropriate Division 24 hours Regional Office per Part III, Section C, Item (2)(a) ofthis 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 drainagefacilities, completion ofall land -disturbing activity, construction or redevelopment, permanent ground cover). 2. Documentation thatthe required ground stabilization measures have been provided within the required Vrneframe or an assurance that they will be provided as soon as possible. NOTE: The rain inspection resets the required 7 calendar day inspection requirement. PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION B: RECORDKEEPING 1. E&SC Plan Documentation The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC plan shall be kept on site and available for inspection at all times during normal business hours. Item to Document Documentation Requirements (a) Each E&SC measure has been installed Initial and date each E&SC measure on a copy and does not significantly deviate from the of the approved E&SC plan or complete, date locations, dimensions and relative elevations and sign an inspection report that lists each shown on the approved E&SC plan. E&SC measure shown on the approved E&SC plan. This documentation is required upon the initial installation of the E&SC measures or if the E&SC measures are modified after initial installation. (b) A phase of grading has been completed. Initial and date a copy of the approved E&SC plan or complete, date and sign an inspection report to indicate completion of the construction phase. (c) Ground cover is located and installed Initial and date a copy of the approved E&SC in accordance with the approved E&SC plan or complete, date and sign an inspection plan. report to indicate compliance with approved ground cover specifications. (d) The maintenance and repair Complete, date and sign an inspection report. requirements for all E&SC measures have been performed. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC to E&SC measures. plan or complete, date and sign an inspection report to indicate the completion of the corrective action. 2. Additional Documentation to be Kept on Site In addition to the E&SC plan documents above, the following items shall be kept on the site and available for inspectors at all times during normal business hours, unless the Division provides a site -specific exemption based on unique site conditions that make this requirement not practical: (a) This General Permit as well as the Certificate of Coverage, after it is received. (b) Records of inspections made during the previous twelve months. The permittee shall record the required observations on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required elements. Use of electronically -available records in lieu of the required paper copies will be allowed if shown to provide equal access and utility as the hard -copy records. 3. Documentation to be Retained for Three Years All data used to complete the a-N01 and all inspection records shall be maintained for a period of three years after project completion and made available upon request. [40 CFR 122.41] PART II, SECTION G, ITEM (4) DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather). Non -surface withdrawals from sediment basins shall be allowed only when all ofthe 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. SECTION C: REPORTING EFFECTIVE: 04/01/19 PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING 1. Occurrences that Must be Reported Permittees shall report the following occurrences: (a) Visible sediment deposition in a stream or wetland. (b) Oil spills if: • They are 25 gallons or more, • They are less than 25 gallons but cannot be cleaned up within 24 hours, • They cause sheen on surface waters (regardless of volume), or • They are within 100 feet of surface waters (regardless of volume). (c) Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S.143-215.85. (d) Anticipated bypasses and unanticipated bypasses. (e) Noncompliance with the conditions of this permit that may endanger health or the environment. 2. Reporting Timeframes and Other Requirements After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate Division regional office within the timeframes and in accordance with the other requirements listed below. Occurrences outside normal business hours may also be reported to the Department's Environmental Emergency Center personnel at (800) 858-0368. Occurrence Reporting Timeframes (After Discovery) and Other Requirements (a) Visible sediment • Within 24 hours, an oral or electronic notification. deposition in a • Within 7 calendar days, a report that contains a description of the stream or wetland sediment and actions taken to address the cause ofthe deposition. Division staff may waive the requirement for a written report on a case -by -case basis. • Ifthe stream is named on the NC 303(d) list as impaired for sediment - related causes, the permittee may be required to perform additional monitoring, inspections or apply more stringent practices if staff determine that additional requirements are needed to assure compliance with the federal or state impaired -waters conditions. (b) Oil spills and • Within 24 hours, an oral or electronic notification. The notification release of shall include information about the date, time, nature, volume and hazardous location of the spill or release. substances per Item 1(b)-(c) above (c) Anticipated • A report at least ten days before the date of the bypass, ifpossible. bypasses [40 CFR The report shall include an evaluation of the anticipated quality and 122.41(m)(3)] effect of the bypass. (d) Unanticipated . Within 24 hours, an oral or electronic notification. bypasses [40 CFR • Within 7 calendar days, a reportthat includes an evaluation ofthe 122.41(m)(3)] quality and effect ofthe bypass. (e) Noncompliance • Within 24 hours, an oral or electronic notification. with the conditions • Within 7 calendar days, a re ort that contains a description ofthe P P of this permit that noncompliance, and its causes; the period of noncompliance, may endanger including exact dates and times, and if the noncompliance has not health or the been corrected, the anticipated time noncompliance is expected to environment[40 continue; and steps taken or planned to reduce, eliminate, and CFR 122.41(I)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6). • Division staff may waive the requirement for a written report on a case -by -case basis. � NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19 � "STRAW W NET" TEMP. SWALE LINER AS SHOWN 1 1 2.5' SEED PER PROJECT SPECS PERMANENT SWALE "A" ATM C C C C C C C C C 10 11 12 13 14 15 16 17 18 19 2O 21 22 23 24 25 26 27 28 29 Co 31 g 33 34 35 36 37 38 39 40 41 g 43 44 ROADSIDE DITCH CALCULATION TABLE "SYNTHETIC MAT" TEMP. SWALE LINER AS SHOWN s L� 2.5' 3 --' - SEED 3 PER PROJECT SPECS PERMANENT SWALE "B" NTS 1 1 2.5' 3 jjR PROJECT SPECS PERMANENT SWALE "C" NTS "JUTE NET" TEMP. SWALE LINER AS SHOWN 1 s L� 2.5' 3 --; - SEED 3 PER PROJECT SPECS PERMANENT SWALE "D" NTS STREET STA C I (IN/HR) A (AC.) Q1O(CFS) =CIA SWALE SLOPE (%) In NORMAL DEPTH (FT) VELOCITY (FT/S) SHEAR STRESS REQUIRED (PSF) SWALE TYPE SHEAR STRESS PROVIDED (PSF) SHILOH 0+00 - 3+OOL 0.5 7.2 1.5 5.4 1.20 0.03 0.9 2.9 0.67 A 1.45 SHILOH 0+00 - 3+OOR 0.5 7.2 0.5 1.8 1.20 0.03 0.6 2.2 0.45 A 1.45 SHILOH 3+00 - 4+50L 0.5 7.2 0.6 2.2 4.56 0.03 0.5 3.8 1.42 A 1.45 SHILOH 3+00 - 4+50R 0.5 7.2 0.2 0.7 4.56 0.03 0.3 2.7 0.85 A 1.45 SHILOH 4+50 - 9+50L 0.5 7.2 1.6 5.8 4.56 0.03 0.7 4.9 1.99 B 2.00 SHILOH 4+50 - 9+50R 0.5 7.2 1.4 5.0 4.56 0.03 0.7 4.7 1.99 B 2.00 SHILOH 9+50 - 11+OOL 0.5 7.2 1.9 6.8 4.56 0.03 0.7 4.9 1.99 B 2.00 SHILOH 9+50 - 11+OOR 0.5 7.2 1.9 6.8 4.56 0.03 0.7 4.9 1.99 B 2.00 SHILOH 11+00 - CDS L 0.5 7.2 2.3 8.3 1.57 0.03 1.0 3.6 0.98 A 1.45 SHILOH 11+00 - CDS R 0.5 7.2 3.1 11.2 1.57 0.03 1.1 3.8 1.08 A 1.45 HOLLY GROVE 0+00 - 2+OOL 0.5 7.2 0.5 1.8 0.73 0.03 0.6 1.8 -- C -- HOLLY GROVE 0+00 - 2+OOR 0.5 7.2 0.1 0.4 0.73 0.03 0.4 1.2 -- C -- HOLLY GROVE 2+00 - CDS L 0.5 7.2 0.5 1.8 1.64 0.03 0.5 2.5 0.51 A 1.45 HOLLY GROVE 2+00 - CDS R 0.5 7.2 0.1 0.4 1.64 0.03 0.3 1.7 -- C NEW BETHEL 0+00 - 2+OOL 0.5 7.2 0.4 1.4 1.58 0.03 0.5 2.2 0.49 A 1.45 NEW BETHEL 0+00 - 2+OOR 0.5 7.2 0.1 0.4 1.58 0.03 0.3 1.7 -- C NEW BETHEL 2+00 - CDS L 0.5 7.2 0.8 2.9 4.12 0.03 0.5 4.0 1.29 A 1.45 NEW BETHEL 2+00 - CDS R 0.5 7.2 0.2 0.7 4.12 0.03 0.3 2.7 0.77 A 1.45 COHARIE 0+00 - 3+75L 0.5 7.2 0.3 1.1 1.05 0.03 0.5 1.8 -- C -- COHARIE 0+00 - 3+75R 0.5 7.2 0.7 2.5 1.05 0.03 0.7 2.3 0.46 A 1.45 COHARIE 3+75 - 10+75L 0.5 7.2 0.6 2.2 1.05 0.03 0.6 2.2 0.39 D 0.45 COHARIE 3+75 - 10+75R 0.5 7.2 0.7 2.5 1.05 0.03 0.7 2.3 0.46 A 1.45 COHARIE 10+75 - 13+OOL 0.5 7.2 0.2 0.7 1.05 0.03 0.4 1.7 -- C -- COHARIE 10+75 - 13+OOR 0.5 7.2 0.4 1.4 1.05 0.03 0.5 1.9 -- C -- COHARIE 13+00 - 15+OOL 0.5 7.2 0.3 1.1 1.05 0.03 0.5 1.8 -- C -- COHARIE 13+00 - 15+OOR 0.5 7.2 1.2 4.3 1.05 0.03 0.8 2.6 0.52 A 1.45 COHARIE 15+00 - 17+OOL 0.5 7.2 0.5 1.8 1.19 0.03 0.6 2.2 0.45 D 0.45 COHARIE 15+00 - 17+OOR 0.5 7.2 1.7 6.1 1.19 0.03 0.9 3.0 0.67 A 1.45 COHARIE 17+00 - CDS L 0.5 7.2 1.0 3.6 1.19 0.03 0.7 2.6 0.52 A 1.45 COHARIE 17+00 - CDS R 0.5 7.2 3.8 13.7 1.19 0.03 1.2 3.7 0.89 A 1.45 LUMBEE 0+00 - 1+OOL 0.5 7.2 0.1 0.4 0.52 0.03 0.4 1.1 -- C -- LUMBEE 0+00 - 1+OOR 0.5 7.2 0.1 0.4 0.52 0.03 0.4 1.1 -- C -- LUMBEE 1+00 - 3+OOL 0.5 7.2 0.3 1.1 3.65 0.03 0.4 2.9 0.91 A 1.45 LUMBEE 1+00 - 3+OOR 0.5 7.2 0.4 1.4 3.65 0.03 0.4 3.2 0.91 A 1.45 LUMBEE 3+00 - CDS L 0.5 7.2 0.6 2.2 5.79 0.03 0.5 4.2 1.81 B 2.00 LUMBEE 3+00 - CDS R 0.5 7.2 1.0 3.6 5.79 0.03 0.5 4.8 1.81 B 2.00 WACCAMAW 0+00 - 2+OOL 0.5 7.2 0.2 0.7 1.97 0.03 0.4 2.0 -- C -- WACCAMAW 0+00 - 2+OOR 0.5 7.2 0.7 2.5 1.97 0.03 0.6 2.9 0.74 A 1.45 WACCAMAW 2+00 - CDS L 0.5 7.2 0.3 1.1 0.86 0.03 0.5 1.7 -- C -- WACCAMAW 2+00 - CDS R 0.5 7.2 0.7 2.5 0.86 0.03 0.7 2.1 0.38 D 0.45 CHERAW 0+00 - 3+OOL 0.5 7.2 0.3 1.1 1.64 0.03 0.5 2.2 0.51 A 1.45 CHERAW 0+00 - 3+OOR 0.5 7.2 0.4 1.4 1.64 0.03 0.5 2.3 0.51 A 1.45 CHERAW 3+00 - CDS L 0.5 7.2 0.5 1.8 7.49 0.03 0.4 4.3 1.87 B 2.00 CHERAW 3+00 - CDS R 0.5 7.2 1.5 5.4 7.49 0.06 0.7 3.3 3.30 E 4.00 4 SEED PER PERMANENT SWALE "F" PROJECT W.I.S1 SPECS 45 46 47 48 49 CO 51 52 53 54 SWALE CALCULATION TABLE RIP RAP 12 PERMANENT SWALE "G" INSTALL FILTER W-T-SI FABRIC BENEATH RIP RAP LOT # C I (IN/HR) A (AC.) Q 10(CFS) =CIA SLOPE M In NORMAL DEPTH (FT) VELOCITY (FT/S) SHEAR STRESS REQUIRED (PSF) SWALE TYPE SHEAR STRESS PROVIDED (PSF) 6/7 0.5 7.2 0.6 2.2 4.6 0.03 0.2 2.9 0.57 F 1.45 12/13 0.5 7.2 0.5 1.8 2.0 0.03 0.2 2.1 0.25 F 1.45 21 /22 0.5 7.2 1.6 5.8 5.0 0.053 0.2 2.0 0.62 G 2.00 35/36 0.5 7.2 1.0 3.6 3.5 0.053 0.3 2.0 0.66 J 2.00 40/41 0.5 7.2 1.3 4.7 2.2 0,053 0.4 2.0 0.55 I 2,00 46/47 0.5 7.2 1.6 5.8 5.0 0.053 0.2 2.0 0.62 G 2.00 57/58 0.5 7.2 2.0 7.2 5.0 0.053 0.2 2.0 0.62 H 2.00 63/64 0.5 7.2 1.0 3.6 2.4 0.053 0.4 1.9 0.60 1 2.00 65/66 0.5 7.2 3.8 13.7 0.8 0.053 0.9 1.9 0.45 J 2.00 72/73 0.5 7.2 1.0 3.6 0.6 0.03 0.4 1.7 0.15 F 1.45 D E91GN 9PECIFI CATI OHS: I. NCDcpyxn n1orTrwspornsiNn L. ASTM CagU J.r Mu nal 3. AASHT 0IA-196 N ete- Joirrs are Nor Designed For O-Ring Gasket pip. I I C 5 C. 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