Loading...
HomeMy WebLinkAboutNCC215531_Site Plan or Location Map_20211006w Q 0 INDIVIDUAL LOT EROSION CONTROL PLAN CHANDLER'S RIDGE PHASE 1 SUBDIVISION TOWN OF ROLESVLLE, NORTH CAROLNA OWNER/DEVELOPER: D R H ORTON TERRAM OR LLC 7208 FALLS OF NEUSE RD. STE 201 RALEIGH, NC 27615 PHASE 1 � 1 i E 2 R _ W RID E R. - — L/ A N I HA E 1 z O L N LN 1 VICINITY MAP SCALE: 1 "=500' NDEX TO PLANS C-1 COVER SHEET C-2 INDIVIDUAL LOT EROSION CONTROL PLAN C-3 INDIVIDUAL LOT EROSION CONTOL PLAN D-1 INDIVIDUAL LOT EROSION CONTOL PLAN EROSION AND SEDIMENT CONTROL APPROVED PLAN DATE PERMIT NO. S- Wake County Environmental Services Sedimentation & Erosion Control 919-856-7400 A ENVIRONMENTAL CONSULTANT SIGNATURE EFFECTIVE: OBi23'17 z O Cn w ry 6 z SEAL: ,•��N CAR�'�, :' o •FEssio'• �'L SEAL 22024 F—= 08-09-2021 U N J CO N Ir W z < w o z � N w W ^ WO W o �� N CO Z J Z O W U �� of LLI U U LQi d Ij LLI 00 W W W Y ao o W o a a w Q wQ z J C � V O U Q T_ w w OLLI r=%� co J i w W I..L W - J O LL 0LL w° z ° U J z Q U I17101TAT 111101 SHEEI C-1 W 07 M D z U W O o_ 60 I ...�..— ....................... .. �..� 0.................. . ... ................. J............ .....0'.26'AC................................ . .... ::.. ..... ...... ......0.?6AG......{ R (.11.1279. 4J .. ..... B.. P I .. .�..... ............... �............ aq ....... .. ....— _ . ...... .... .....�. . ... ............... o-.26Ac. ..................... .. ....(11,27ASF} ....... 15.......... I O ... ..0.26.AC ........... . :::: A. ....(1*1.,273 SF)'........ �. .............. ..... . ........ ...... .... f .............. ...I. ................... ...................... ........ .I r A .. ........... ........ .......'.... ................................. . ... ....... ..... ............. ....I.. ff' .I.,' ......... 13 I o .......... 0.26 ac .... . (11,25S.SF) ..... .... ....... .... .. ............... N .....0:27 . :. .. ............... ,Ac. 2SF).................... .............. '. ............. ... .... ....�I . I. ..... ..... .... i z. 20' PRDE..... ...... ..... .......... . I .... ............... .' ..._4I �,; .�... ...... ..... ':::::::1.:::::::: ................ .. .:::::.:....R.. .:.... .:.... ! 0.26A6 .. ..�. :. .. ....(.11,291.SF.)............. .�� ........ . .. . I .: ..0.27.AC .........,' A � 1 .... .�. �.. ............ .................. .... o ... . .. ... f.... .........'.'.'.'.'.'.'.'.'.'. E I........'...... ...... ... o r 4 �................ . . . ,. ... .... .... ,......... 91 �8 ......(12,9.84SF}.............. .b.27.AC............ .. ....................... .... .................................... .... . ....(11:651 ............... SF)'..........I.' ,..> ..... :. ................ ... ........ ...... ...... ... .................... ... ......... ..... ... ...... ...... ........... ... ....... 21.............. ........ 0 .......22 .......... ... .. .....'9,28AC............. ......0.2a.AC ......... .. . (12,063 SF) .. (12;121- SF)..... . GRAPHIC SCALE 0 30 60 120 ( IN FEET ) 1 inch = 60 ft. Required Wake County Construction Sequence* (Please modify for site specific details and phasing) Include Watershed Manger for your Project area in blanks below 1. Schedule a preconstruction conference with the Watershed Manger, Andrew Lake. Obtain a land —disturbing permit. 2. Install gravel construction pad, temporary diversions, silt fence, sediment basins or other measures as shown on the approved plan. Clear only as necessary to install these devices. Seed temporary diversions, berms and basins immediately after construction. 3. Call 919-594-0895 for an onsite inspection by the Watershed Manager to / \ obtain a Certificate of Compliance. 4. Begin clearing and grubbing. Maintain devices as needed. Rough grade site. 5. Install storm sewer, if shown, and protect inlets with block and gravel inlet controls, sediment traps or other approved measures as shown on the Ian. Begin P P P P 9 / construction, building, etc. 6. Stabilize site as areas are brought up to finish grade with vegetation, paving, ditch linings, etc. Seed and mulch denuded areas per Ground Stabilization Time Frames. / \ �G. 7. When construction is complete and all areas are stabilized completely, call / " " " " " " " " �, Andrew Lake for an inspection b the Watershed Manager. / �� --� �� ��� 8. If site is approved, remove temporary diversions, silt fence, sediment basins, etc., ... ... .... and seed out or stabilize an resulting bare areas. All remaining permanent erosion .. ... ...... . .. Y 9 9 .. .... .. ...` "' "" " "" """""" "' "" .'...... �. _./— �— � control devices, such as velocity dissipators, should now be installed. . .... / \ \ \� 9. When vegetation has become established call for a final site inspection b the .......... .: 1 9 P Y �"' Watershed Manager, Andrew Lake. Obtain a Certificate of Completion. 1............. ........................................................... ........... ~�.......... �`- t . ...... .. ................... ..............�......... . / / / / 1 . - ...................... .... 1 .� ...........\ i \ \ -- - ............................... .... . ...... - - - - - - - - ......... ......... .... . — ......................... .... .... .... . ... .................................................................. ..... .. . . :7L ONSITE CONCRETE WASHOUT STRUCTURE WITH LINER 10'-0" MIN. A f1 0 CD CD C:) 0 SANDBAGS (TYP.) OR STAPLES 0 0 ? 10 MIL 1:1 PLASTIC SANDBAGS (TYP.) .0 SIDE SLOPE LJRNO OR STAPLES _ 00 (TYP.) TO CD C Q m A CLEARLY MARKED SIGNAGE g� A�py WASHOLUt NOTING DEVICE (18'?C24"MIN.) NG ES• 1. ACTUAL LOCATION DETERMINED IN FIELD L THE CONCRETE WASHOUT STRUCTURES SHALL BE MAfNTAIN'ED WHEN THE QQUID ANWOR SOLID REACHES 75% OF THE STRUCTURES CAPACITY, FI AN 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH S[GNAGE NOTING DEVICE. BELOW GRADE WASHOUT STRUCTURE Nor TO SCALE HIGH =0' D" MR4. COHESIVE—� g a sraP EsP'I LOW FILTRATION HIGH SOIL BERM 10 MIL CQHFSNF B 0 O PLASTIC LINING LOW FILTRATION 0 ff55 1:1 SIDE SLOPE SOIL BERM i1 {(TYP.) 0 0 4 !1 R it 2 o- SECTION g-B B SANDBAGS. TYP.) NOTE'S; OR STAPLE 1. ACTUAL LOCATION DETERMINED IN FIELD CLEARLY MARKED SIGNAGE 2. THE CONCRETE WASHOUT STRUCTURES CONCRETE -NOTING DEVICE (18"X24" MIN.) SHALL 13E MAINTAINED WHEN THE LIQUID WASHOUT ANDIOR SOLID RFACHFS 76% OF THE STRUCTURES CAPACITY TO PROVIDE ADEQUATE H"DINO CAPAGITY WITHA MINIMUM 12INCHES OF FREEBOARD, p„� q 3.CCNCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY MARKED WITH SIGNAGE NOTING DEVICE. ABOVE GRADE WASHOUT STRUCTURE NCT TO SCALE Table 6.62a Maximum Slope Slope Length (ft) Maximum Area (ft) Slope Length and Slope for <2% 100 10,000 which Sediment Fence is 2 to 5% 75 7,500 Applicable 5 to 10% 54 5,D00 10 to 20% 25 2.500 >20% 15 1,5w A THE TYPES OF CONTROL MEASURES PROVIDED. SOME LOTS MAY REQUIRE y % COMBINING ELEMENTS OF MORE THAN ONE TYPICAL DETAIL IN ORDER TO PROVIDE %........ '.'....'.'.'.'.. '.'.'.......... �32 co ............... .. .........I.. o:ssac�,I... /.........../ ....�../...... // ADEQUATE EROSION CONTROL MEASURES. STREE SHOULDER AND/OR DITCH ALONG THE LOT FRONTAGE SHALL BE KEPT FREE - - - - - - - OF SEDIMENT AND MAINTAINED IN A MANNER SUCH THAT THE DRAINAGE AND — — — — STABILIZATION ASPECTS OF THE PUBLIC RIGHT—OF—WAY ARE NOT ADVERSELY f_ �/ AFFECTED BY THE CONSTRUCTION ACTIVITY ASSOCIATED WITH THE LOT DEVELOPMENT 7. ALL DISTURBED AREAS THAT ARE SUBJECT TO EROSION AND MOVEMENT OF SEDIMENT OFFSITE FROM THE LOT MUST BE PROVIDED WITH GROUND COVER OR / OTHER PROTECTIVE MEASURES SUFFICIENT TO RESTRAIN EROSION AND CONTROL OFF —SITE SEDIMENTATION. 8. THE WAKE COUNTY EROSION CONTROL INSPECTOR MAY REQUIRE ADDITIONAL EROSION CONTROL MEASURES OF MODIFICATIONS TO THE EROSION CONTROL PLAN BASED ON FIELD CONDITIONS. 240 DISTURBED AREA = 30.3 AC EROSION CONTROL NOTATION KEY LEGEND = DENOTES OVERALL REFERENCE LABEL FOR TYPICAL LOT EROSION .. LIMITS OF DISTURBANCE A CONTROL DETAIL THAT IS MOST APPLICABLE O FOR THIS LOT SEE DETAIL SHEET D-1 PRIDE PRIVATE DRAINAGE EASEMENT CORSSE CITY OF RALEIGH SANTIARY SEWER EASEMENT GENERAL NOTES: 1. THIS PLAN IS APPROVED FOR GRAPHIC REPRESENTATION OF THIS SUBDIVISION FOR THE PURPOSE OF FACILITATING INDIVIDUAL SINGLE—FAMILY LOT EROSION CONTROL PERMITS. THIS PLAN IS NOT A SUBDIVISION DESIGN DOCUMENT AND IS NOT TO BE USED FOR ANY PURPOSES OTHER THAN REFERENCE DOCUMENT FOR SINGLE—FAMILY EROSION CONTROL PERMITS WITHIN THIS PROJECT, 2. EXISTING BOUNDARY, LOT LAYOUT, EASEMENTS, RIPARIAN BUFFERS, WETLANDS AND FLOOD HAZARD SOILS LOCATIONS SHOWN WITHIN THE PROJECT LIMITS ARE BASED ON RECORDED PLATS AND APPROVED CONSTRUCTION DRAWINGS. PN Li a 0 z 0 Cn w IY 0 z SEAL: ,•��N CARo''�, �OQ�pFESS%pN��q f SEAL 22024 F—= 108 `\09-2021 CO 1 Q Q CN C) L? Cc �< I.- - Q TT 00 00 Q 1 � z 0) CE I" � `_ z LLJ �U) LEI O s CL U N J 0 IO N W Z 9Qf LU Z o CI w w n W W N OZ U L, C2 Z p 03 o J Z W U Z 0 of : IG) U U 0 LQi a �w 00w LU Y dp O W 0 0- 0- 0- LLI _ / Z Q J n J O W Q J � Z (� 0 O CU O z W J z o — — , covIJ 5; w _ J O O LL LL W 0 O � O W o J Q Z 0 Q 0 U z C-2 Z �- MR, slil a i DISTURBED AREA = 30.3 AC EROSION CONTROL NOTATION KEY LEGEND DENOTES OVERALL REFERENCE LABEL FOR TYPICAL LOT EROSION LIMITS OF DISTURBANCE A CONTROL DETAIL THAT IS MOST APPLICABLE FOR THIS LOT SEE DETAIL SHEET D-1 GRAPHIC SCALE PRDE PRIVATE DRAINAGE EASEMENT CORSSE CITY OF RALEIGH SANTIARY SEWER EASEMENT 60 0 30 60 120 240 N Lu 69 = 0.69 C (3Q07 SF) r w Q 0 z 0 Cn w ry 0 z SEAL: :' o •FEssio'• �'L SEAL 22024 F-= 08-09-2021 M O � I Cl- I o�� QN uj- C) L? Cc �< �-- - z�Ln CL 00 Q = o z �.Q) U) w N W 0 s N j J oN w Z w� o � N wZ n I W Ww N OZ O (O Z p p m :m J Z ^ W U Z pO O of W N W W cow w �w Y apoW o a� a a LLI U/ z Q J J n O W ~ Z (� z z J o O 0 0 Q U C.) Z _ 2 H 0 O O Z u) �/ w J J O w J W W 0 LL O O J 3 J o°Q z 0 r 0 U z ( IN FEET ) 1 inch = 60 ft. C-3 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 P 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. (21 E&SC At least once per 1. Identification of the measures inspected, Measures 7calendardays 2. Date and time ofthe inspection, and within 24 3. Name ofthe person performing the inspection, hours of rain 4. Indication of whetherthe measures were operating event >1.0 inch in properly, 24 hours 5. Description of maintenance needsforthe measure, 6. Description, evidence, and date of corrective actionstaken. 3 Stormwater (1 At least once per P 1. Identification of the discharge outfalls inspected, B discharge B 7calendarda s Y 2. Date and time ofthe inspection, outfalls (SDOs1 and within 24 3. Name ofthe person performing the inspection, hours of rain 4. Evict ence of indicators of stormwater pollution such as oil event 2: 1.0 inch in sheen, floating or suspended solids or discoloration, 24 hours 5. Indication ofvisible sediment leavingthe site, 5. Description, evidence a did it ate of correct ive a afire s to ke n. (41 Perimeter of At least once per If vi si ble sedimentation is found outside site limits, then a record site 7calendardays of the following shall be made: and with in 24 1. Actions taken to clean up or stabilize the sedi ment that has left hou rsofa rain thesite 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 If the stream or wetland has increased visible sedimentation or a wetlands onsite 7calendardays stream has visible increased turbidity from the construction oroffsite and with in 24 activity, then a record ofthe following shall be made: (where hours ofa rain 1. Description, evid ence a in d date of ca rrect ive a ctio ns to ken,and accessible) event > 1.0 inch in 2. Recordsofthe 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 P 1. The phase of radin installation of perimeter E&SC P B B( stabilization ofgrading measures clearing and grubbing,installation of storm measures drainage facilities, completion of all land -disturbing activity, construction or redevelopment, permanent round cover B ) 2. Documentation thatthe 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 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 beer completed. Initial and date a copy of the 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 co ofthe approved E&SC PY PP to E&SC measures. plan or complete, date and sign an inspection report to indicate the sour letion ofthe P 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 () P g P 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 electron icaIl -available records in lieu of the required paper copies will be allowed if Y q P P P 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 g 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 onlywhen all of the following criteria have been met: g a The E&SC Ian 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 () P Y P P 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, () P P Y P () () () P , (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 ad is used to the extent feasible at the outlet ofthe dewaterin treatment devices described in Item c above () g P P P Y g P g () , (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 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 Discover and Other Requirements P g ( Y) cW (a) Visible sediment • Within 24 hours, an oral or electronic notification. deposition in a • Within 7 calendar days, a report that contains a description ofthe 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 ills and ) Oilspills • Within 24 hours an oral or electronic notification. The notification release of shall include information about the date, time, nature, volume and hazardous location ofthe spill or release. substances per Item 1(b)-(c) above (c) Anticipated • A report at least ten days before the date of the bypass, if possible. bypasses [40 CFR The report shall include an evaluation ofthe anticipated quality and 122.41(m)(3)] effect ofthe bypass. (d)Unanticipated • Within24hours, 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 report that contains a description ofthe ofthis permit that noncompliance, and its causes; the period of noncompliance, may endanger y g includingexact dates and and if the noncompliance has not P 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 7 l 1( )1 revert reoccurrence ofthe noncompliance. 40 CFR 122.41 16 . P P I O( ) • Division staff may waive the requirementfora written reportora case -by -case basis. NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19 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). ( P Y). 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 (HOW) 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 HOW Zones 10 days for Falls Lake Watershed -7 days for perimeter dikes swales (e) Areas with slopes ditches, perimeter slopes and HOW 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 an areas with tem orar P Y P Y 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 round stabilization is achieved. g P g 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 P rY 6 • 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 or other 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 wa lls • 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 NCDWR 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 NCDWR 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. EQUIPMENTAND 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 leakingvehicles 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. Cleanup 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 L 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 laced appropriately for the needs of site P 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. PORTABLE TOILETS 1. Install portable toilets on level round at least 50 feet awn from storm drains P g Y 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 WITH LINER 10 H11H 11 ........ p, �p.,E""E �o�,"E"M T o�,"E"M " PLE= I APE -_1�;vSLOPCLo NG"f oa .o.""o "E,a.,<M", 10- ­T11NAA ;„o"A.o"o E"M"Eo",E,o M", 2,o"A.o"o�.E"M"Eo",E,o ,,.o,.".. .HEN ""R""� " ��...DI,o" "� "� "M"M1, "" o„"." o HA BELOW GRADE WASHOUT STRUCTURE ABOVE GRADE WASHOUT STRUCTURE ­1 111- 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 ofthe 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 g PP Y P Y 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 the spill or leak into wells stormwater drains P Y may P .round waterg or surface water. If a spill occurs clean area immediately. . Y 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: 04/01/19 TOP OF S MUST BE, ABOVE TF THE WASI STEEL FENCE POST WIRE FENCE HARDWARE CLOTH FILTER OF #57 WASHED STONE BURY WIRE FENCE AND HARDWARE CLOTH A�K�ET CO V 1V 1 1 NORTH CAROLIN EFFECTIVE: 01 /31 /08 STEEL FENCE POST _ V V �.II SET MAX APART MIN. 18"INTO SOLID GROUND T FILTER FABRIC ON GROUND NOTES: 1. REMOVE SEDIMENT WHEN HALF OF STONE OUTLET IS COVERED. 2. REPLACE STONE AS NEEDED TO ENSURE DEWATERING. BURY 6" OF UPPER EDGE OF FILTER FABRIC IN TRENCH SECTION VIEW STANDARD SILT FENCE OUTLET 50' MIN. 11 �J .1 . BUT SUFFICIENT TO KEEP SEDIMENT ON SITE 2" -3" STONE TO BE USED:',.':: 25' OR WIDTH OF EXISTING (SURGE STONE OR RAILROAD', PROPOSED STREET, ...'. ROADWAY BALLAST)'>;: ;,:,':?:::::".;' .. WHICHEVER IS GREATER. 11 mE COY NORTH CAR LLIN EFFECTIVE: 01/31/08 PLAN VIEW 35' MIN. EXISTING ROADWAY 000 CITES: 1. PUT SILT FENCE OR TREE PROTECTION FENCE UP TO ENSURE CONSTRUCTION ENTRANCE IS USED. 2. IF CONSTRUCTION ON THE SITES ARE SUCH THAT THE MUD IS NOT REMOVED BY THE VEHICLE TRAVELING OVER THE STONE THEN THE TIRES OF THE VEHICLES MUST BE WASHED BEFORE ENTERING THE PUBLIC ROAD. 3. MAINTAIN GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING CONSTRUCTION SITE. ENTRANCE WILL REQUIRE PERIODIC REMOVAL OF SEDIMENT LADEN STONE AND REPLACEMENT WITH FRESH STONE. I 6" MIN. _ MINIMUM 10 GAUGE LINE WIRES FE=. ABRIC UNDER STONE CROSS SECTION 15' MIN. STANDARD CONSTRUCTION ENTRANCE IIII IIII I IIII■■■■■■■■■■■■■■IIII 11 �l o�►o •• �• i'iIiI►❖l iiiiii I;♦♦ �d ►♦♦ ►ii♦1■ ■ ';�&i-10'i♦i ♦ ,w♦•..♦♦♦♦ iIl i ♦i♦♦i♦ �► �.I♦ ! l�♦ llip.w- r••••.• ,w-w!!ipi!i .■■■■■m•i�i!i!!i!i�i!i!i�i!i! .••••.•••I> l iiW-`C►�♦�/"MI li♦♦►♦♦A♦♦o♦♦. I /♦�♦♦♦♦♦♦♦♦ 1/ II'♦♦♦♦♦♦♦♦♦♦♦♦�♦♦►Ir OEM 'ice♦�►�♦�►��1���4��� ♦♦►♦♦•►♦♦A♦♦o♦♦� �'i ♦♦♦� =il II f =8 :IIII IIE "i �ii 11 11�ii�n �iI i i ii �11 11ii�ri A11 11ii�n 11 ri�ii�n �ii�n ii �ii�n �11 n 11 11 11 I. : : E '' =n f I III . I NOTE: 1. USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT EXCEED 1/4 ACRE AND NEVER IN AREAS OF CONCENTRATED FLOW. 2. REMOVE SEDIMENT DEPOSITED AS NEEDED TO PROVIDE STORAGE VOLUME FOR THE NEXT RAIN AND TO REMOVE PRESSURE ON THE SILT FENCE. AKE COUNTY NORTH CAROLIN EFFECTIVE: 01/3 STEEL POST WOVEN WIRE FABRIC SILT FENCE FABRIC 0 0 n � FILL SLOPE � N Z_ z-,)"-r1--1 N "' GRADE I,,, II„II r ..I,.I' 6" MINIMUM COVER o I OVER SKIRT * N �,. ANCHOR SKIRT AS DIRECTED :II - BY ENGINEER * SIDE VIEW NEW CONSTRUCTION 12" MIN. MINIMUM 12-1/2 GAUGE INTERMEDIATE WIRES GRADE awl, STANDARD TEMPORARY SILT FENCE TREE PROTECTION FENCE SILT FENCE (SEE NOTES) OUTLET 1 t IF -- 1 I 171-tF � S11 � 11 - - - �� 1"7 w ::: SILT FENCE . 95 i i I-1 � ,-- I f f I I I I � I � 1-1 1-1 � 1 J1Ill I 1 1 1 1 1-1 � 1 171 [ L � [ RIGHT OF WAY CONSTRUCTION I -� -�- --- �- ENTRANCE No - - SILT FENCE OUTLET 8' RET[JRN 8' RETURN - - AN- - - t - SF SF SF S WATTLES TOP OF SWALEiiiAS NEEDED ROADWAY EDGE OF ROADWAY ROADWAY ROADWAY i Fzzll ROADWAY TYPE A PAVEMENT OR CURB TYPE B TYPE C TYPED TYPE E INLET PROTECTION CURB INLET NOTES: LEGEND 1. If required by Wake County, tree protection fence shall be 6. These details are for only lots with disturbed area less than one _- FLOW DIItECTION installed along the rear property line when adjacent to riparian acre. SILT FENCE buffer zones, wetlands and/or 25 ft. Tree and Vegetation 7. If the disturbed area is greater than one acre, a custom erosion - SF - Protection Zane. If the lot is subject to a municipal planning control plan should be submitted for the 15-day review cycle. The �-T DIVERSION DITCH jurisdiction, then the builder is responsible for v the ] > P verifying ]an should address betms/diversions and sediment sand P �P applicable tree protection standards and for installation of tree basins. ( WATTLE protection measures as required by the municipality. 8. If multiple lots share silt fence with none installed between the TREE PROTECTION FENCE 2. Install silt fence on low elevation sides of each lot and install silt lots, a revised plan will be required. - TP - fence outlets shown on schematicldiagram and as needed. 9. Inlets downstream of disturbances should be protected, streets ® SILT FENCE OUTLET 3. Install requited silt fence within 10 feet of property lines to should be swept as needed when sediment is present, and erosion ensure there is no conflict with septic system. It is the control measures removed or damaged by sub -contractors or Qo INLET PROTECTION responsibility of the builder to ensure septic system is not utilities shall be re -installed at the end ofthe work day. impacted b silt fence installation. y 10. Details for silt fence silt fence out) construction entrance and DRIVEWAY PIPE 4. It is the responsibility of the builder to ensure installation of other measures are provided on other sheets. erosion control measures does not impact septic system and 11. Erosion control details are not drawn to scale. CONSTRUCTION ENTRANCE repair areas, 12. If lots are contiguous and have different land owners, lots can not 5. Construction entrance should be installed for each lot and field share the silt fences. Each lot should have individual silt fences. located. A11L' COUNTY N°�r°'° TYPICAL INDIVIDUAL LOT SEDIMENT & EROSION CONTROL MEASURES DETAIL EFFECTIVE: 4/15/19 NPDES 5tonriwater Discharge Permit for Consruction Activities {NCGO1) NCDENRlDfvision ni water Quality NEW STABILIZATION TIMEFRAMES Effective Aug. 320111 SITE AREA DESCRIPTION STABILIZATION TIMEIFRAME ExCEPTION5 Perimeter dikes. swales. ditches. slopes p days 7 s Y None High Quality Water (HOW) Zones 7 days None Slopes steeper than 3:1 7 days If slopes are 10' or less in length and are not steeper than 2:1. 14 days are allowed. Slopes 3:1 or flatter 14 days 7 days for slopes greater than 50' in length. All other areas with slopes flatter than 4A 14 days None. except for perimeters and HOW Zones. SEEDBED PREPARATION: 1. Chisel compacted areas and spread topsoil three inches deep over adverse soil conditions, if available. Rip the entire area to six inches deep. 2. Remove all loose rock, roots and other obstructions, leaving surface reasonably smooth and uniform. 3. Apply agricultural lime, fertilizer and superphosphate uniformly and mix with soil (see mixture below). 4. Continue tillage until a well -pulverized, firm, reasonably uniform seedbed is prepared four to six inches deep- s. Seed on a freshly prepared seedbed and cover seed lightly with seeding equipment or cultipack after seeding- 6. Mulch immediately after seeding and anchor mulch. 7. Inspect all seeded areas and make necessary repairs or reseedings within the planting season, if possible. If stand should be more than 60% damaged, re-establish following the original lime, fertilizer and seeding rates. 8. Consult S&EC Environmental Engineers On maintenance treatment and fertilization after permonent cover is established. MIXTURE Agricultural Limestone 2 tons/acre (3 tons/acre in clay soils) Fertilizer 1,000 Ibs/acre - 10-10-10 Superphosphate 500 Ibs/acre - 20% analysis Mulch 2 tons/acre - small grain straw Anchor Asphalt emulsion of 300 gals/acre SEEDING SCHEDULE FOR SHOULDERS SIDE DITCHES SLOPES MAX 3:1): Date Type Planting Rate Aug 15 - Nov 1 Tall Fescue 300 Ibs/acre Nov 1 - Mar 1 Tall Fescue & Abruzzi Rye 300 Ibs/acre Mar 1 - Apr 15 Tail Fescue 300 Ibs/acre Apr 15-Jun 30 Hulled Common Bermudagrass 25 Ibs/acre Jul 1- Aug 15 Tall Fescue AND Browntop 125 Ibs/acre (Tall Fescue); 35 Millet or Sorghum -Sudan Ibs/acre (Browntop Millet); 30 Hybrids*** Ibs/acre (Sorghum -Sudan Hybrids) FOR SHOULDERS SIDE DITCHES. SLOPES (3.1 TO 2:1) Date Type Planting Rate Mar 1 - Jun 1 Sericea Lespedeza (scarified) 50 Ibs/acre (Sericea Lespedeza); and use the following combinations: Mar 1 - Apr 15 Add Tail Fescue 120 Ibs/acre Mar 1 - Jun 30 Or add Weeping Love grass 10 Ibs/acre Mar 1 - Jun 30 Or add Hulled Common Bermudagrass 25 Ibs/acre Jun 1 - Sept 1 Tall Fescue AND Browntop Mullet or 120 Ibs/acre (Tall Sorghum -Sudan Hybrids*** Fescue); 35 Ibs/acre (Browntop Mullet); 30 Ibs/acre (Sorghum -Sudan Hybrids) Sept 1 - Mar 1 Sericea Lespedeza (unhulled 70 Ibs/acre (Sericea - unscarified) AND Tall Fescue Lespedeza); 120 Ibs/acre {TaN Fescue) Nov 1 - Mar 1 AND Abruzzi Rye 25 Ibs/acre Consult S&EC Environmental Engineers for additional information concerning other alternatives for vegetation of denuded areas. The above vegetation rates are those that do well under local conditions; other seeding rate combinations are possible. *** TEMPORARY: Reseed according to optimum season for desired permanent vegetation. Do not allow temporary cover to grow more than 12" in height before mowing; otherwise, fescue may be shaded n,tt- i I- 0 Z O (n W of O Z lb SEAL: \\tttttlllll///// \\'t CARo •Z�J� 1 ` 0 FESSO /1 /' " �: �o N-Ay�••. 9 : Q l • SEAL - :I_ �.22024 � : ' ,- .' i/ \, //' /II Il I% W\\\\ 08-09-2021 0 h 8 I U) o� Q N u C W .O C3 L i z U Q Q L = O I z Is DO D_ U ct z Q W I ( _ o _ O , -� dl� 3 N H O N J 0 X O N W w t� z D_' w LL N z 0LLI � J Z of O 2 a x cc W d' 0O J d 0 of w Q 0. 0 0 (/) W J Z Q 2 U ci W _ z N O 6� W N W 0 co z H 0 n W Q U o w w N w H O Y O o a- M a Q V ) Z J J O _ Of Q Q U W IY O Q Z i J w 0 I•d_ O w � w z IL O' ` O IV Z O Z i O IN, w I■itxlannlkqr.1 w m M z U w O a