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HomeMy WebLinkAboutNCC203776_MODIFICATION Supporting Doc SEVERAL ADDL LOTS_20230505ROY COOPER Governor EUZABETH S. BISER Secretary DOUGLAS R. ANSEL 6rtatmMucmr NORTH CAROLINA EavbwuwnW Qualify April 19, 2023 LETTER OF APPROVAL Lennar Carolinas, LLC ATTN: Jason Byham, Division President 1505 King Street Ext., Suite 100 Charleston, SC 29405 RE: Project Name: Brunswick Plantation — Beaufort, Smithfield, and Hamptons Lots Acres Approved: 35.54 Project ID: BRL NS-2021-011 County: Brunswick City: Calabash Address: South Middleton Drive NW River Basin: Lumber Stream Classification: Other Submitted By: Matthew Savoie, Path Light Consulting, Inc. Date Received by LQS: April 10, 2023(Revised) Plan Type: Residential Dear Mr. Byham: This office has reviewed the subject erosion and sedimentation control plan and hereby issues this Letter of Approval with Modifications and Performance Reservations. A list of the modifications and reservations is attached. This plan approval shall expire three (3) years following the date of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. Should the plan not perform adequately, a revised plan will be required (G.S. I I3A-54.1)(b). As of April 1, 2019, all new construction activities are required to complete and submit an electronic Notice of Intent (eNOI) form requesting a Certificate of Coverage (COC) under the NCG010000 Construction General Permit. After the form is reviewed and found to be complete, you will receive a link with payment instructions for the $100 annual permit fee. After the fee is processed, you will receive the COC via email. As the Financially Responsible Party shown on the FRO form submitted for this project, you MUST obtain the COC prior to commencement of any land disturbing activity. The eNOI form may be accessed at deq.nc.gov1NCG01. Please direct questions about the eNOI form to the Stormwater Program staff in the Raleigh central office. If the owner/operator of this project changes in the future, the new responsible party must obtain a new COC. �: _ North Carolina Departznent of Enviromnental witty I DKIslon of Energy, Nneral and Land Resources e:!5-0fD, �� W lmington Regional Office 1 127 Cardinal Drive Extension I W11mi ngton, North Carolina 2W5 910.7%.7215 Letter of Approval Lennar Carolinas, LLC April 19, 2023 Page 2 of 4 Title 15A NCAC 4B .0118(a) and the NCGO 1 permit require that the following documentation be kept on file at the job site: 1. The approved E&SC plan as well as any approved deviation. 2. The NCGO1 permit and the COC, once it is received. 3. Records of inspections made during the previous 12 months. Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Program is performance -oriented, requiring protection of existing natural resources and adjoining properties. If, following the commencement of this project, it is determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions to the plan and implementation of the revisions to ensure compliance with the Act. Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to this land - disturbing activity. This approval does not supersede any other permit or approval. Please note that this approval is based in part on the accuracy of the information provided in the Financial Responsibility Form, which you provided. This permit allows for a land -disturbance, as called for on the application plan, not to exceed the approved acres. Exceeding the acreage will be a violation of this permit and would require a revised plan and additional application fee. You are requested to file an amended form if there is any change in the information included on the form. In addition, it would be helpful if you notify this office of the proposed starting date for this project. Please notify us if you plan to have a preconstruction conference. Your cooperation is appreciated. Sincerely, Rhonda Hall Assistant Regional Engineer Land Quality Section Enclosures: Approval Comments and Conditions NPDES NCGO1 Fact Sheet cc: Matthew Savoie, Path Light Consulting, Inc. 1151 E State Road 434, Suite 3001, Winter Springs, FL 32708 Wilmington Regional Office file Letter of Approval Lennar Carolinas, LLC April 19, 2023 Page 3 of 4 APPROVAL COMMENTS AND CONDITIONS Project Name: Brunswick Plantation — Beaufort, Smithfield, and Hamptons Lots Project ID: BRUNS-2021-011 County: Brunswick 1. This plan approval shall expire three (3) years following the date of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129. 2. The developer is responsible for the control of sediment on -site. If the approved erosion and sedimentation control measures prove insufficient, the developer must take those additional steps necessary to stop sediment from leaving this site (NCGS 113A-57(3)). Each sediment storage device must be inspected after each storm event (NCGS 113A-54.1(e)). Maintenance and/or clean out is necessary anytime the device is at 50% capacity. All sediment storage measures will remain on site and functional until all grading and final landscaping of the project is complete (15A NCAC 04B .0113). Any and all existing ditches on this project site are assumed to be left undisturbed by the proposed development unless otherwise noted. The removal of vegetation within any existing ditch or channel is prohibited unless the ditch or channel is to be regarded with side slopes of 2 horizontal to 1 vertical or less steep (15A NCAC 04B .0124 (d)). Bank slopes may be mowed, but stripping of vegetation is considered new earth work and is subject to the same erosion control requirements as new ditches (NCGS 113A- 52(6)). 4. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project prior to the commencement of this land disturbing activity. This could include our agency's Stormwater regulations and the Division of Water Resources' enforcement requirements within Section 401 of the Clean Water Act, the U.S. Army Corps of Engineers' jurisdiction of Section 404 of the Clean Water Act, the Division of Coastal Management's CAMA requirements, the Division of Solid Waste Management's landfill regulations, the Environmental Protection Agency and/or The U.S. Army Corps of Engineers jurisdiction of the Clean Water Act, local County or Municipalities' ordinances, or others that may be required. This approval cannot supersede any other permit or approval; however, in the case of a Cease and Desist Order from the Corps of Engineers, that Order would only apply to wetland areas. All highland would still have to be in compliance with the N.C. Sedimentation Pollution Control Act. If any area on site falls within the jurisdiction of Section 401 or 404 of the Clean Water Act, the developer is responsible for compliance with the requirements of the Division of Water Resources (DWR), the Corps of Engineers and the Environmental Protection Agency (EPA) respectively. Any erosion control measures that fall within jurisdictional wetland areas must be approved by the aforementioned agencies prior to installation. The Land Quality Section must be notified of a relocation of the measures in question to the transition point between the wetlands and the uplands to assure that the migration of sediment will not occur. If that relocation presents a problem or contradicts any requirements of either DWR, the Corps, or the EPA, it is the responsibility of the developer to inform the Land Quality Section regional office so that an adequate contingency plan can be made to assure sufficient erosion control remains on site. Failure to do so will be considered a violation of this approval (NCGS 113A-54.I(b)). Letter of Approval Lennar Carolinas, LLC April 19, 2023 Page 4 of 4 6. Any borrow material brought onto this site must be from a legally operated mine or other approved source. Any soil waste that leaves this site can be transported to a permitted mine or separately permitted construction sites without additional permits under NCGS 74-49(7)(d). Disposal at any other location would have to be included as a permit revision for this approval. 7. This permit allows for a land disturbance, as called for on the application plan, not to exceed 4.48 additional acres for a total of 35.54 acres. Exceeding that acreage will be a violation of this permit and would require a revised plan and additional application fee. Any addition in impervious surface, over that already noted on the approved plan, would also require a revised plan to verify the appropriateness of the erosion control measures and stormwater retention measures (NCGS 113A-54.I(b)). 8. The plan includes a very specific phasing schedule. If it proves impractical to follow the proposed phasing schedule, a revised plan will be required. 9. The construction detail for the proposed silt fence requires reinforcing wire and steel posts a maximum of eight (8) feet apart. Omission of the reinforcing wire is a construction change that necessitates more posts for support, i.e., the spacing distance needs to be reduced to no greater than six (6) feet apart (E&SC Planning & Design Manual 6.63, Rev. 6/06). 10. Because the sediment traps and basins are shown on the plan as the primary sedimentation and erosion control devices on this project, it is necessary that the traps and basins and their collection systems be installed before any other grading takes place on site, and that every structure that receives more than one acre of drainage is built so that each dewaters only from the surface (NCGO 10000). If that proves to be impractical, a revised plan must be submitted and approved that addresses erosion and sediment control needs during the interim period until the traps and basins are fully functioning (1 13A-54. I (b)). 11. A graveled construction entrance must be located at each point of access and egress available to construction vehicles during the grading and construction phases of this project. Access and egress from the project site at a point without a graveled entrance will be considered a violation of this approval. Routine maintenance of the entrances is critical (113A-54.I(b)). 12. As a condition of the NPDES General Stormwater Permit (NCGO 10000), the financially responsible parry shall comply with the NCGOI Ground Stabilization And Materials Handling requirements that became effective April 1, 2019. The NCGO1 Ground Stabilization And Materials Handling standard detail can be printed from the deq.nc.gov/NCGO1 website. 13. As a condition of the NPDES General Stormwater Permit (NCGO 10000), the financially responsible parry shall comply with the NCGO1 Self -Inspection, Recordkeeping and Reporting requirements that became effective April 1, 2019. The NCGO1 Self -Inspection, Recordkeeping and Reporting standard detail can be printed from the deq.nc.gov/NCGOI website. 14. As a part of routine monitoring of the approved land -disturbing activity, the financially responsible parry shall assure inspections of the area covered by the approved plan after each phase of the plan has been completed and after establishment of temporary ground cover in accordance with North Carolina General Statute 113A-54.1(e). Ref: G.S. 113A-54.1 through G.S. 113A-57 Sections 15A NCAC 04A.0101 through 15A NCAC 04E.0504 General Permit NCG 010000 NPDES for Construction Activities SEDIMENTATION AND EROSION CONTROL PLANS FOR HOMEBUILDING ACTIVITIES AT LOT # DISTURBED SQFT. DISTURBED ACREAGE 1048 71199 0.17 1049 71317 0.17 1050 81414 0.19 1051 11,800 0.27 1052 13,476 0.31 1053 81244 0.19 1054 71646 0.18 1055 71200 0.17 1056 71215 0.17 1057 71339 0.17 1058 71862 0.18 1059 61424 0.15 1060 13,597 0.31 1061 13,269 0.30 1062 13,141 0.30 1063 10,607 0.24 1064 71951 0.18 1065 71363 0.17 1066 71320 0.17 1067 71276 0.17 1068 71192 0.17 1069 71205 0.17 TOTAL HAMPTONS LOT DISTURBED AREA (ACRES) 4.48 BRUNSWICK PLANTATION (LOTS 1048M 1069) S. MIDDLETON DRIVE NW, CALABASH, NC 28467 BRUNSWICK COUNTY �^ y�-� '� /Y �� •u S��q ..ram c, � - � 5, % �. �i� �� ` �\`r.�/ \� �4 ��.,•�p: .% ~' --�t�y ,j yf !y/�_ f'r• ��"� Rip„ :c; •s`�� 4� t _ • �✓ \`j fit, �\'\ y;^�` t.1 � E { `-�:` .'s,;�8,'�zr e' � _ � ra+�e. \\S Wiz- If .. ' /. ` � r'. f\/l -- � � �_.. SMEC1 •,. i[�, ` 1, f•�, e .-r-s� !�\ �\ \ \ ✓WI\� !may �� �C: � � • �''� ��1. ,� �sei �'� ' M— j�� �� � Ir ..�' may.- 1,, y, -.- �.�! i i ./� f' .". , A`� � `" ' ,t e� L4» •y,°a �`x, �,' �' �'; yE4 -, _ / - ,�' � k;' � '� / i .•-1 i � ,sue, r�! '.YN � '�§ ;. � �. . �\ 'a"_ �,_ E - `', ' 1 � 1_ � �` �' - _ ; .' 'i' i °� %" J.�--' 1�\•E\ .!�r. _ - � - f ?tik ^q g :w a - I CJ �'. � 1 1 ✓� V \ \ E l i� II - „j [. 4 �l F - ! F i 1•t \ / �~ �V / k�� d5 5S ; �kti �: `��� �i'11�'✓r ^L /� 4 3 r't! r �'f f f rZ('�r;r a i ���..✓�uW BEST �•� 4 1.. _ ,,t�t' , MAP -KEY: NOT TO SCALE WATERSHED CLASSIFICATION: LUMBER RIVER BASIN STORMWATER FROM THE HAMPTONS WILL BE DISCHARGED INTO THE CAWCAW SWAMP, LOCATED NORTH OF THE HAMPTONS COMMUNITY. PLAN REFERENCE: BRUNSWICK PLANTATION CREATED BY NORRIS & WARD. - NQ s BRUNSWICK PLANTATION LENNAR CAROLINAS, LLC S_ MIDDLETON DR. NW U CALABASH, NC 28467 BRUNSWICK COUNTY 33'56'35.9"N 78'34'21.5"W pp�,y LOCATION MAP - NTS PAGE INDEX EC-1 COVER SHEET EC-2 LOT E&SC PLAN EC-3 EROSION CONTROL DETAILS AND NOTES EC-4 NCG01 GROUND STABILIZATION EC-5 NCG01 SELF -INSPECTIONS �I PATH LIGHT PRO STORMWATER, ENVIRONMENTAL, ENERGY AND SAFETY COMPLIANCE GUIDING THE WAY FOR A BETTER TOMORROW 1511 EAST STATE ROAD 434, SUITE 3001 WINTER SPRINGS, FL 32708 407-604-3555 PROJECT: z O`o 0z CV U Z J � c= J z ^<0 rn m QJ r U z oo - 0 C, U V / ��0 W O o U/ 0 O otf W z Lu J�__ C) 0 J U) OWNER: 4 LENNAR CAROLINAS, LLC 1941 SAVAGE ROAD, SUITE 100C CHARLESTON, SC 29407 DRAWN BY: SMA DATE: 03/15/2023 REVISIONS: SHEET TITLE: EROSION CONTROL PLAN PLAN SHEET NUMBER: EC-1 CONSTRUCTION SEQUENCE 1. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC) MUST BE OBTAINED BEFORE LAND DISTURBING ACTIVITIES CAN OCCUR. 2. NOTIFY NCDEQ—LR, WILMINGTON REGIONAL OFFICE AT LEAST 48 HOURS PRIOR TO COMMENCING ANY LAND DISTURBING ACTIVITY TO SET UP PRE —CONSTRUCTION CONFERENCE ON SITE WITH EROSION CONTROL INSPECTOR TO DISCUSS EROSION CONTROL MEASURES. 3. INSTALL STABILIZED CONSTRUCTION ENTRANCES, SILT FENCE, AND SILT FENCE OUTLETS AS LOTS BECOME ACTIVE. ALL EROSION CONTROL MEASURES SHALL BE CONSTRUCTED IN ACCORDANCE WITH WITH NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES STANDARDS AND SPECIFICATIONS. PERMITTED LAND DISTURBING ACTIVITIES AND VERTICAL CONSTRUCTION MAY BEGIN ONCE MEASURES ARE INSTALLED. 4. ALL INLETS COLLECTING DRAINAGE, OR THAT MIGHT POTENTIALLY BE AFFECTED BY THE LOT CONSTRUCTION, SHALL HAVE INLET PROTECTION. INLET PROTECTION MUST BE MAINTAINED UNTIL ALL AREAS DRAINING TO THE INLET ARE FULLY STABILIZED. 5. THE CONTRACTOR SHALL CONDUCT SELF —INSPECTIONS OF THE EROSION AND SEDIMENTATION CONTROL MEASURES AND COMPETE THE FOLLOWING COMBINED SELF —INSPECTION FORM FOUND ON THE DEMLR WEBSITE (HTTP://DEQ.NC.GOV/ABOUT/DIVISIONS/ENERGY—MINERAL—LANDRESOURCES/ EROSION—SEDIMENT—CONTROL/FORMS). 12 MONTHS OF COMPLETE INSPECTION FORMS SHALL BE KEPT ON —SITE AND AVAILABLE FOR INSPECTION AT ALL TIMES. IT IS RECOMMENDED A COPY BE KEPT IN A PERMITS BOX. 6. COMPLETE SELF —INSPECTIONS WEEKLY AND WITHIN 24 HOURS OR A 1" OR GREATER RAINFALL EVENT. 7. MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURES IN GOOD WORKING ORDER. SILT FENCE, INLET PROTECTION, AND OTHER SIMILAR MEASURES MUST BE CLEANED OUT WHEN THEY ARE HALF FULL. CLOGGED SILT FENCE OUTLETS MUST BE REFRESHED/REPLACED. SILT FENCE CANNOT HAVE HOLES OR TEARS. 8. PER NPDES REQUIREMENTS, A RAIN GAUGE, SELF —INSPECTION REPORTS, PERMT, CERTIFICATE OF COVERAGE, AND E&SC PLAN ARE REQUIRED TO BE MAINTAINED ON —SITE AND REMAIN ACCESSIBLE DURING INSPECTION. IT IS RECOMMENDED THAT THESE ITEMS BE PLACE IN A PERMITS BOX AT THE BEGINNING OR ENTRANCE OF THE PROJECT. 9. RE —INSTALL ADEQUATE EROSION AND SEDIMENT CONTROL MEASURES AND/OR INCREASE MAINTENANCE FREQUENCY WHERE APPROVED MEASURES FAIL TO PREVENT ACCELERATED EROSION, OFF —SITE SEDIMENTATION, OR REPETITIVE NON—COMPLIANCE ISSUES. 10.PER THE NPDES PERMIT, GROUND STABILIZATION WILL BE APPLIED WITHIN 14 CALENDAR DAYS FROM LAST LAND DISTURBING ACTIVITY. FOR STEEP SLOPES, THAT AREA MUST BE STABILIZED WITHIN 7 CALENDAR DAYS. 11.PERMANENT GROUNDCOVER SHALL BE ESTABLISHED IN 90 CALENDAR DAYS, HOWEVER, NPDES GROUNDCOVER REQUIREMENTS TAKE PRECEDENCE. 12.ONCE GRADING AND CONSTRUCTION ACTIVITIES ARE COMPLETE, THE SITE IS STABILIZED, AND TEMPORARY MEASURES ARE REMOVED, THE PERMITTEE SHALL CONTACT NCDEQ TO CLOSE OUT THE E&SC PLAN. 13.ONCE THE FINAL INSPECTION IS COMPLETE THE PERMIT WILL BE CLOSED AND NO ADDITIONAL GROUND DISTURBING ACTIVITIES CAN OCCUR. GENERAL NOTES 1. ENGINEERING PLANS CREATED FOR THE BRUNSWICK PLANTATION SITE HAVE BEEN USED AS A BACKGROUND TO CREATE THIS PLAN. THEREFORE, GRADES SHOWN ON THIS PLAN HAVE BEEN PREVIOUSLY INSTALLED BY THE DEVELOPER. LENNAR CAROLINAS, LLC WILL BE PERFORMING VERTICAL CONSTRUCTION OF HOMES ON OWNED LOTS ONLY AND WILL ONLY PERFORM FINE, ON —LOT GRADING DURING CONSTRUCTION OF HOMES. 2. INDIVIDUAL LOTS WILL BE WRAPPED WITH SILT FENCE WHEN ACTIVE. IF ADJACENT LOT IS BEING DISTURBED SIMULTANEOUSLY, SILT FENCE MAY BE INSTALLED AT THE LIMITS OF THE BUILDINGS DISTURBED AREA AS LONG AS THE AREA TOTALS LESS THAN ONE ACRE. 3. THERE ARE NO TREE COVERAGE AREAS TO BE PROTECTED DURING CONSTRUCTION OF INDIVIDUAL BUILDINGS. TREE PROTECTION WILL NOT BE A PART OF THIS PLAN. 4. ANY AREAS ON SITE THAT ARE SLOPED AT 3:1 OR STEEPER, CONTRACTOR IS TO USE APPROVED ROLLED EROSION CONTROL PRODUCT TO STABILIZE SLOPE. CONTRACTOR TO CONTACT ENGINEER TO DISCUSS OTHER APPROVED METHODS. 5. NO MORE THAN ONE CONTIGUOUS ACRE WILL BE DISTURBED AT ANY GIVEN TIME. 6. ANY BORROW MATERIAL MUST COME FROM A PERMITTED SITE OR WASTE MATERIAL MUST GO TO A PERMITTED SITE OR BE AN EXTENSION OF THIS SITE. 7. THERE WILL BE NO STOCKPILE AREAS LOCATED ON —SITE. ANY EXCESS MATERIAL WILL BE HAULED OFF —SITE. S. IF THE SAME PERSON CONDUCTS THE LAND —DISTURBING ACTIVITY AND ANY RELATED BORROW OR WASTE ACTIVITY, THE RELATED BORROW OR WASTE ACTIVITY SHALL CONSTITUTE PART OF THE LAND —DISTURBING ACTIVITY UNLESS THE BORROW OR WASTE ACTIVITY IS REGULATED BY THE DIVISION OF WASTE MANAGEMENT. IF THE LAND —DISTURBING ACTIVITY AND ANY RELATED BORROW OR WASTE ACTIVITY ARE NOT CONDUCTED BY THE SAME PERSON, THEY SHALL BE CONSIDERED SEPARATE LAND —DISTURBING ACTIVITIES AND MUST BE PERMITTED EITHER THROUGH THE SEDIMENTATION POLLUTION CONTROL ACT AS A ONE —USE BORROW SITE OR THROUGH THE MINING ACT. 8. AREAS OUTSIDE OF THE LIMITS OF DISTURBANCE AND IMPROVEMENTS SHOWN OUTSIDE OF THE LIMITS OF DISTURBANCE ARE NOT INTENDED TO BE PART OF THIS PLAN AND ARE SHOWN FOR REFERENCE ONLY, WITH THE EXCEPTION OF INLET PROTECTIONS WITHIN THE STREETS. EROSION CONTROL MAINTENANCE SCHEDULE 1. ALL EROSION AND SEDIMENT CONTROL DEVICES SHALL BE PROPERLY MAINTAINED DURING ALL PHASES OF CONSTRUCTION UNTIL THE COMPLETION OF ALL CONSTRUCTION ACTIVITIES AND ALL DISTURBED AREAS HAVE BEEN STABILIZED. ADDITIONAL CONTROL MEASURES WILL BE INSTALLED DURING CONSTRUCTION IN ORDER TO CONTROL EROSION AND/OR OFF —SITE SEDIMENTATION IF DEEMED NECESSARY BY ON —SITE INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE INSPECTED AT LEAST ONCE EVERY SEVEN (7) CALENDAR DAYS AND AFTER ANY STORM EVENT GREATER THAN 1.0 INCHES OF PRECIPITATION DURING A 24—HOUR PERIOD, AND THE INSPECTION SHALL BE DOCUMENTED IN WRITING. DAMAGED OR INEFFECTIVE DEVICES SHALL BE REPAIRED OR REPLACED AS NECESSARY. 3. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT REACHES HALF CAPACITY OF THE FENCE. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A BARRIER. 4. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND MULCHED ACCORDING TO SPECIFICATIONS IN THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER. 5. AFTER CONSTRUCTION, THE DEVELOPER WILL MAINTAIN ALL PERMANENT EROSION CONTROL DEVICES IN ORDER TO PREVENT ACCELERATED EROSION. 6. SILT FENCE OUTLETS WILL BE ADDED ALONG THE SILT FENCE AT ALL LOW POINTS AS NEEDED BASED ON FIELD CONDITIONS. CONTRACTOR TO DETERMINE LOCATIONS AS NEEDED. 7. INDIVIDUAL LOTS WILL BE WRAPPED WITH SILT FENCE WHEN ACTIVE. SELF INSPECTION NOTICE: NOTIFICATION OF LAND RESOURCES SEDIMENT AND EROSION CONTROL SELF —INSPECTION PROGRAM: THE SEDIMENTATION POLLUTION CONTROL ACT WAS AMENDED IN 2006 TO REQUIRE THAT PERSONS RESPONSIBLE FOR LAND —DISTURBING ACTIVITIES INSPECT A PROJECT AFTER EACH STAGE OF THE PROJECT TO MAKE SURE THAT THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN IS BEING FOLLOWED. RULES DETAILING THE DOCUMENTATION OF THESE INSPECTIONS TOOK EFFECT OCTOBER 1, 2010. THE SELF —INSPECTION PROGRAM IS SEPARATE FROM THE WEEKLY SELF —MONITORING PROGRAM OF THE NPDES STORMWATER PERMIT FOR CONSTRUCTION ACTIVITIES, THE FOCUS OF THE SELF —INSPECTION REPORT IS THE INSTALLATION AND MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES ACCORDING TO THE STAGE OF THE PROJECT AND CONTINUED UNTIL PERMANENT GROUND COVER IS ESTABLISHED IN ACCORDANCE WITH NCGS 113-54.1 AND 15A NCAC 4B.0131. THE SELF —INSPECTION REPORT FORM IS AVAILABLE AS A PDF FORM FROM http://deg.nc.gov/about/divisions/energy—minera I —land —resources erosion—sediment—control/forms IF YOU HAVE QUESTIONS OR CANNOT ACCESS THE FORM, PLEASE CONTACT THE DEMLR OFFICE AT (919) 707-9200 FOR ASSISTANCE. EACH LOT IS UNDER AN ACRE DISTURBED AND HAS ITS OWN EROSION CONTROL MEASURES. SEE TYPICAL LOT EROSION CONTROL DETAIL. SILT FENCING MAY BE PLACED AT THE I x SIDE OF LOTS IN INSTANCES WHERE AN .K ACTIVE LOT IS DIRECTLY ADJACENT TO INLET PROTECTION TO BE PLACED AN OCCUPIED HOME AS A COURTESY I I I AROUND ALL ON -SITE DRAINAGE MEASURES AND NOT FOR EROSION STRUCTURES, IF APPLICABLE AND SEDIMENT CONTROL PURPOSES. I • SILT FENCE OUTLETS TO BE "PORT-0-LET" I Ix I INSTALLED ON LOW SIDE OF LOTS xI INLET PROTECTION TO BE PLACED AT ALL STORM DRAIN I STABILIZED CONSTRUCTION INLETS DOWN STREAM OF ENTRANCE ALL ACTIVE LOTS. K. I STREET ♦ 0 `/„r HOMEBUILDING PURPOSES ONLY (PHASE 2 OF THE HAMPTIONS) EROSION & SEDIMENTATION LEGEND ----- SITE CONSTRUCTION LIMITS LIMITS OF DISTURBANCE SILT FENCE x STABILIZED CONSTRUCTION ENTRANCE 0 INLET PROTECTION ® SILT FENCE ROCK OUTLET PROTECTION LOT AND ROADWAY WATER FLOW S�� 6 50 100 OD PATH LIGHT PRO STORMWATER, ENVIRONMENTAL, ENERGY AND SAFETY COMPLIANCE GUIDING THE WAY FOR A BETTER TOMORROW 1511 EAST STATE ROAD 434, SUITE 3001 WINTER SPRINGS, FL 32708 407-604-3555 PROJECT: z Oco 00 CV z U z J ^ U J z --� < 0 co r J U z c6 0 ozU C) w �0 ` O o C/) 0 C/) O w otf W z J� C) 0 G U) OWNER: LENNAR CAROLINAS, LLC 1941 SAVAGE ROAD, SUITE 100C CHARLESTON, SC 29407 DRAWN BY: SMA DATE: 03/15/2023 REVISIONS: SHEET TITLE: EROSION CONTROL PLAN DRAWNING SCALE: 1" = 50' PLAN SHEET NUMBER: EC-2 Date: Construction: 1. Clear the entrance and exit area of all vegetation, roots, and other objectionable material and properly grade it. 2. Place the gravel to the specific grade and dimensions shown on the plans, and smooth it. 3. Provide drainage to carry water to a sediment trap or other suitable outlet. 4. Use geotextile fabrics in order to improve stability of the foundation in locations subject to seepage or high water table. �S NORTH CAROLINA 4 Environmental Qul EFFECTIVE DATE:':' Maintenance: 1. Per NCG-01 inspect at least once a week and after each 1 inch or greater rainfall-, make any required repairs immediately. 2. Maintain the gravel pad in a condition to prevent mud or sediment from leaving the construction site. This may require periodic topdressing with 2 inch stone. 3. Immediately remove all objectionable materials spilled, washed or tracked onto public roadways. CONSTRUCTION ENTRANCE I EXIT Pace: Date: NON-INVASIVE PERMANENT SEEDING Page: RECOMMENDATIONS FOR FALL SEEDING MIXTURE NON-INVASIVE PERMANENT SEEDING Species Rate RECOMMENDATIONS FOR LATE Hard Fescue 15 Ibslacre WINTER AND EARLY SPRING Switchgrass 2.5-3.5 Ibslacre' SEEDING MIXTURE Indian Grass 5-7 Ibslacre' Big Bluestem 5-7 Ibslacre' Species Rate Centipede 5 Ibslacre NON-INVASIVE PERMANENT SEEDING RECOMMENDATIONS FOR SUMMER Indian Woodoats 1.5-2.5 Ibslacre" Indian Woodoats 1.5-2.5 Ibslacre" SEEDING MIXTURE Virginia Wild Rye 4-6 Ibslacre" Virginia Wild Rye 4-6 Ibslacre" Species Rate Indian Woodoats 1.5-2.5 Ibslacre' *Depending on mix with others species. See table p g upon p "Depending upon mix with other species. See cable Virginia Wild Rye 4-6 Ibslacre' 6.11.d from Chapter 6 ofthe NC Erosion and Sediment 6.11.d from Chapter 6 of the NC Erosion and Sediment Control Planningand Design Manual. g Control Planning and Design Manual. "Depending upon mix with other species. Seeding Dates Seeding Dates See table 6.11.d from Chapter 6 of the NC Mountains - Hard Fescue- Aug 1 - June 1 Coastal or Eastern Piedmont for Centipede- Sept. 1 - Erosion and Sediment Control Planning Mountains- Switchgrass, Indian Grass, Big Bluestem- May M1 and Design Manual. Dec 1 -April 15 Coastal and Piedmont for Indian Woodoats and Virginia Seeding Dates Piedmont and Coastal- Switchgrass, Indian Grass, Big Wild Rye- Feb 15 - April 1 Mountains -July 15- Aug 15 Bluestem- Dec 1 - April 1 Mountains for Indian Woodoats and Virginia Wild Rye - -Aug 15 -Oct 15 Virginia Wild Rye- Coastal- Indian Woodoats and Vir g y March 1 -May 15 Sept 1 - Nov 1 Maintenance: Maintenance: Indian Woodoats and Virginia Wild Rye Maintenance: Significant maintenance may be required to obtain are both sun and shade tolerant.y Hard Fescue is not recommended for slopes > 5%. desired cover once centipede is planted. Acceptable for Prefers shade. sodding. SEED BED PREPARATION: LIMING- Apply lime according to soil test recommendations. If the pH (acidity) of the soil is not known, an application of ground agricultural limestone atthe rate of 1 to 1 2tonslacre on coarse -textured soils and 2-3 tons/acre on fine -textured soils is usually sufficient. Apply limestone uniformly and incorporate into the top 4-6 inches of soil, Soils with a pH of 6 or higher need not be limed- FERTILIZER- Base application rates on soil tests When these are not possible, apply a 10-10-10 grade fertilizer at 700-1,000 Iblacre Both fertilizer and lime should be incorporated into the to 4-6 inches of soil. If a hydraulic seeder is used do not mix seed and fertilizer more than 30 minutes before application. P Y PP SURFACE ROUGHENING- If recent tillage operations have resulted in a loose surface additional roughening may not be required, except to break u large clods, If rainfall causes the 9 P 9 9 Y q P P 9 surface to become sealed or crusted loosen it just prior to seeding b raking, harrowing, or other suitable methods for fine grading The finished grade shall be a smooth even soil J p g Y g, g g g surface with a loosen uniform) fine texture. All ridges and depressions shall be removed and filled to provide the approved surface drainage Planting is to be done immediate) Y 9 P P PP 9 9 Y after finished grades are obtained and seedbed preparation is completed. NOTES' 1. Permanent seeding,sodding or other means of stabilization are required when all construction work is completed according to the NPDES timeframe's table. 9 q p g 2. A North Carolina Department of Agriculture soils test (or equal) is highly recommended to be obtained for all areas to be seeded, sprigged, sodded or planted. 3- Use a seeding mix that will produce fast growing nurse crops and includes non-invasive species that will eventually provide a permanent greundcover Soil blankets may be used in lieu of nurse crops. Mat, tack or crimp mulch, as needed to stabilize seeded areas until root establishment, Mulch must be applied uniformly over the soil with a cover density of at least 80%. 4. Ground cover shall be maintained until permanent vegetation is established and stable against accelerated erosion. NORTH CAROLINA Environmental Quality PERMANENT SEEDING RECOMMENDATIONS �FECTIVE DATE: 111122020 Date: 4' MIN. TOP OF SILT FENCE MUST BE AT LEAST 1' ABOVE THE TOP OF THE WASHED STONE STEEL FENCE POST WIRE FENCE FRONT VIEW HARDWARE CLOTH FILTER OF #57 WASHED STONE BURY WIRE FENCE AND HARDWARE CLOTH SECTION VIEW CARO DATE: 11112120,-:1 3' FILTER FABRIC ON GROUND Page: SILT FENCE BURY WIRE FENCE, FILTER FABRIC, AND HARDWARE CLOTH IN TRENCH STEEL FENCE POST \ SET MAX 2' APART MIN, 18" INTO SOLID GROUND NOTES: 1. Hardware cloth and gravel should overlay the silt fence at least 12 inches 2. Stone outlets should be placed on low elevation areas of silt fence and based on field conditions. MAINTENANCE: 1. Per NCG-01, inspect outlet at lest once a week and after each 1 inch or greater rainfall event. Complete any required repairs immediately. BURY 6" OF UPPER EDGE OF Freshen stone when sediment accumulation exceeds 6 inches. Keep FILTER FABRIC IN TRENCH mesh free of debris to provide adequate flow. 2. Remove sediment when half of stone outlet is covered. 3. Replace stone as needed to facilitate de -watering. SILT FENCE OUTLET Steel Post Construction: 1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. 2. Ensure that the height ofthe sediment fence does not exceed 24 inches above the ground. (Higher fences may impound volumes of water sufficient to cause failure of the structure.) 3. Construct the filter fabric from a continuous roll cut to the length ofthe barrier to avoid joints. When joints are necessary, securely fasten the filter cloth only at a support post with 4 feet minimum overlap to the next post. 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts. Extend the wire mesh support to the bottom of the trench. Fasten the wire reinforcement, then fabric on the upslope side ofthe fence post. Wire or plastic zip ties should have a minimum 50 pound tensile strength. 5. When a wire mesh support fence is used, space posts a maximum of 8 feet apart. Supports should be driven securely into the ground a minimum of 24 inches. G. Extra strength filter fabric with 6 feet post spacing does not require wire mesh support fence. Securely fasten the filter fabric directly to posts. Wire or plastic zip ties should have a minimum of 50 pound tensile strength. 7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line ofthe posts and upslope from the barrier. 8. Place 12 inches of fabric along the bottom and side ofthe trench. 9. Backfill the trench with soil placed over the filter fabric and compact. Thorough compaction of the backfill is critical to silt fence performance. 10. Do not attach filter fabric to existing trees. Maintenance: 1. Inspect sediment fences at least once a week and after each 1 inch rainfall. Make any required repairs immediately. 2. Should the fabric of a sediment fence collapse, tear, decompose, or become ineffective, replace it promptly. 3. Remove sediment deposits as necessary to provide adequate storage volume for the next rain and reduce pressure on the fence. Take care to avoid undermining the fence during cleanout. 4. 1 its and I drainage 8' Max. Standard Strength fabric with wire fence 6' Max. Extra strength fabric without wire fence Wire Fence Plastic or Wire ties it 18-24" 8" down & 4" forward along the 11 trench L Filter Fabric I I Wire Fence Filter Fabric Plastic or Wire Backfill trench and Compact Steel Post thoroughly - Upslope 'Min, 8" Min. 24" CROSS SECTION VIEW SILT FENCE Date: Page: TEMPORARY SEEDING RECOMMENDATIONS TEMPORARY SEEDING TEMPORARY SEEDING FOR LATE WINTER AND EARLY SPRING RECOMMENDATIONS FOR SUMMER RECOMMENDATIONS FOR FALL Seeding Mixture Seeding Mixture Seeding Mixture Species Rate (lb/acre) Species Rate (Ib/acre) Species Rate (Ib/acre) Rye (grain) 120 Annual lespedeza (Kobe in 50 German millet 40 Rye (grain) 12D Piedmont and Coastal Plain, In the Piedmont and Mountains, a Seeding Dates Korean in Mountains) small -stemmed Sudangrass may be Mountains -Aug. 15 - Dec. 15 Omit annual lespedeza when duration of substituted at a rate of 50 Ib/acre. Coastal Plain and Piedmont -Aug. 15 - Dec. 31 temporary cover is not to extend beyond June. Seeding Dates Mulch Seeding Dates Mountains -May 15 - Aug. 15 Apply 4,000 Iblacre straw. Anchor straw by Mountains -Above 2500 feet: Feb. 15 - May 15 Piedmont -May 1 - Aug. 15 tacking with asphalt, netting, or a mulch Below 2500 feet: Feb. 1- May 1 Coastal Plain -Apr. 15 - Aug. 15 anchoring tool. A disk with blades set nearly Piedmont -Jan. 1 - May 1 Mulch straight can be used as a mulch anchoring tool. Coastal Plain -Dec. 1 - Apr. 15 Apply 4,000 Iblacre straw. Anchor straw Maintenance Mulch by tacking with asphalt, netting, or a Repair and refertilize damaged areas Apply 4,000 Iblacre straw. Anchor straw by mulch anchoring tool. A disk with blades immediately. Topdress with 50 Iblacre of nitrogen tacking with asphalt, netting, or a mulch set nearly straight can be used as a in March. If it is necessary to extend temporary anchoring tool. A disk with blades set nearly mulch anchoring tool. cover beyond June 15, overseed with 50 Iblacre straight can be used as a mulch anchoring tool. Maintenance Kobe (Piedmont and Coastal Plain) or Korean Maintenance Refertilize if growth is not fully adequate. (Mountains) lespedeza in late February or early Refertilize if growth is not fully adequate. Reseed, refertilize and mulch immediately March. Reseed, refertilize and mulch immediately following erosion or other damage. following erosion or other damage. SEED BED PREPARATION: LIMING- Apply lime accordin to soil test recommendations. If the H (acidity) of the soil is not known an application of round agricultural limestone at the rate of 1 to 1 -tonslacre on PPY 9 P i tY) pP 9 9 z coarse -textured soils and 2-3 tonslacre on fine -textured soils is usually sufficient. Apply limestone uniformly and incorporate into the top 4-6 inches of soil. Soils with a pH cf 6 or higher need not be limed, FERTILIZER- Base application rates on soil tests When these are not possible, apply a 10-10-10 grade fertilizer at 700-1,000 Iblacre Both fertilizer and lime should be incorporated into the top 4-6 inches of soil, If a hydraulic seeder is used, do not mix seed and fertilizer more than 30 minutes before application. SURFACE ROUGHENING- If recent tillage operations have resulted in a loose surface additional roughening may not be required, except to break up large clods. If rainfall causes the surface to become sealed or crusted loosen it just prior to seeding b raking, harrowing, or other suitable methods for fine grading The finished grade shall be a smooth even soil 1 P 9 Y 9� 9� 9 9 surface with a loosen uniformly fine texture All ridges and depressions shall be removed and filled to provide the approved surface drainage Planting is to be done immediately after finished grades are obtained and seedbed preparation is completed NORTH CAROLINA t Environmental Quality TEMPORARY SEEDING RECOMMENDATIONS EFFECTIVE DATE: 11/122020 Date' St4 3'-5'inte s at 25' 12" Initial channel anchor trench Terminal slope and channel archor trench .................................. 3" Min, .......................... Anchor 5" xb" Overlap min. Trench Overlap Cvercut channel 2" Longitudinal E" "In to allow bulking Anchor Trench �\ during seedbed preparation DETAIL INFORMAIIII TAKEN HARDWARE CLOTH & GRAVEL NA 'EROSION AND AOM 1HE ND SEDIMENT u 3 INLET PROTECTION CONTROL PLANINING AND C3.2 DESIGN L111NLIAL"- N.T.S. Typical installation with erosion control blankets or turf n=infurcemant mats 6" Mln Longitudinal anchor trench Single -lap spliced ends orbegin new roll in an intermittent check slot WASHED STONE NO �I MAXIMUM GALAVANIZED POST HARDWARE ARE CATCH BASIN SPACING 4F EXTENDS TO TOP OF BOX STANDARD METAL POST 2' IN GROUND #57 WASHED STONE PLACED AT A HEIGHT OF 16' 40W �s MIN. ABOVE TOP SPACING OF 4' rLHn YItY11 MAXIMUM p CONSTRUCTION SPECIFICATIONS: SECTION A -A 1. UNIFORMLY GRADE A SHALLOW DEPRESSION APPROACHING THE INLET. 2. DRIVE - FOOT STEEL POSTS 2 FEET INTO THE GROUND SURROUNDING THE INLET. SPACE POSTS EVENLY AROUND THE PERIMETER OF THE INLET, A MAXIMUM OF 4 FEET APART. 3. SURROUND THE POSTS WITH WIRE MESH HARDWARE CLOTH. SECURE THE WIRE MESH TO THE STEEL POSTS AT THE TOP, MIDDLE AND BOTTOM. PLACING A 2-FOOT FLAP OF THE WIRE MESH UNDER THE GRAVEL FOR ANCHORING IS RECOMMENDED. 4. PLACE CLEAN GRAVEL (NCDOT #57 STONE) ON A 2:1 SLOPE WITH A HEIGHT OF 16 INCHES AROUND THE WIRE, AND SMOOTH TO AN EVEN GRADE. 5. ONCE THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE ACCUMULATED SEDIMENT, AND ESTABLISH FINAL GRADING ELEVATIONS. B. COMPACT THE AREA PROPERLY AND STABILIZE IT WITH GROUNDCOVER. MAINTENANCE: INSPECT INLETS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2OR GREATER) RAINFALL EVENT. CLEAR THE MESH WIRE OF ANY DEBRIS OR OTHER OBJECTS 0 PROVIDE ADEQUATE FLOW FOR SUBSEQUENT RAINS. TAKE CARE NOT TO DAMAGE OR UNDERCUT THE WIRE MESH DURING SEDIMENT REMOVAL. REPLACE STONE AS NEEDED. Page R 6" Min. and staple at Overlap 12" intervals Prepare soil and apply seed b.f. FLOW .................... ................ installing blankets mats or other :.... .....r..,.. Staple Overlaps temporary channel liner systems Max. 5" spacing Bring material down to a level area, turn the end under 4" and staple at NOTES 12" intervals 1. Lime, fertilize and seed before installation. Planting of shrubs trees, etc. should occur after installation. 2. Slope surface shall be smooth before placement for proper soil contact. 3. Design velocities exceeding 2 feetlsecond require temporary blankets, mats or similar liners to protect seed and soil until vegetation becomes established, 4. Terminal anchor trenches are required at RECP ends and intermittent check slats must be constructed across channels at 25 foot intervals. MAINTENANCE', 5. Terminal anchor trenches should be a minimum of 12 inches in depth and 6 inches in width. Intermittent check slots should be 6 inches deep 1, Inspect Rolled Erosion Control Products at least weekly and and 6 inches wide after each rain of 1 inch or greater, repair immediately. 6. For installation on a slope, place RECP 2-3 feet aver the top of the slope and into an excavated end trench measuring approximately 12 2- Good contact with the ground must be maintained, and inches deep by 6 inches wide. Pin the RECP at 1 foot intervals along the bottom of the trench, backfill and compact. Unroll the RECP down erosion must not occur beneath the RECP. the slope maintaining direct contact between the soil and RECP. Pin using staples or pins in a 3 feet center -to -center pattern. 3. Any areas of the RECP that are damaged or not in close 7. 11 gauge, at least 6 inch by 1 inch staples or 12 inch minimum length wooden stakes are recommended for anchoring. contact with the ground shall be repaired and stapled 8. Grass -lined channels with design velocities exceeding 6 feetisecond should include turf reinforcement mats 4- If erosion occurs due to poorly controlled drainage; the 9 Check slots to be constructed per manufacturers specifications problem shall be fixed and the eroded area protected. 10. Staking or stapling layout per manufacturers specification. 5. Monitor and repair the RECP as necessary until ground cover 11- If there is a berm at the top of slope, anchor upslope of the berm- is established, 12- Do not stretch blanketslmatting tight, allow the rolls to mnferm to any irregularities 13. For slopes less than 3H:1 V, rolls may be placed in horizontal strips. EFFECTIVE DATE: 11;12i20,6 ROLLED EROSION CONTROL PRODUCTS (RECP) �I PATH LIGHT PRO STORMWATER, ENVIRONMENTAL, ENERGY AND SAFETY COMPLIANCE GUIDING THE WAY FOR A BETTER TOMORROW 1511 EAST STATE ROAD 434, SUITE 3001 WINTER SPRINGS, FL 32708 407-604-3555 PROJECT: z O� 00 z �U CV J J z ^<0 QJ r U z 00 0 C3 0 Ill U U) UJ ` 0 - 0 0 O� w W z J� C) 0 0 J V J OWNER: LENNAIT LENNAR CAROLINAS, LLC 1941 SAVAGE ROAD, SUITE 100C CHARLESTON, SC 29407 DRAWN BY: SMA DATE: 03/15/2023 REVISIONS: SHEET TITLE: EROSION CONTROL DETAILS PLAN SHEET NUMBER: EC-3 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 activity being 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 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 that rain will not dislodge the soil. Use one of the techniques in the table below: Temporary Stabilization • Temporary grass seed covered with straw or other mulches and tackifiers e Hydrose'eding • Rolled erosion control products with or without temporary grass seed • Appropriately applied straw or other VIL11ch • Plastic sheeting Permanent Stabilization * Permanent grass seed covered with straw or other mulches and tackifiers _ Geotextille fabrics such as permanent soil reinforcement matting * Hydros+eeding = Shrubs or other permanent plantings covered with mulch • Uniform and evenly distributed ground cover sufficient to restrain erosion • Structural methods such as concrete, asphalt or retaining walls Rolle4i 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 DAMS/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 PAMSIFlocculants and in accordance with the manufacturer's instructions. 4. Provide ponding area for containment of treated 5tormwater before discharging offsite. 5. Store flocculants in leak -proof containers that are kept under storm -resistant cover or surrounded by secondary containment structures. 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. 5. 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. NORTH CAROLINA En viron m en ta I Q u a 11ty _-_- `M■a 1 �■ ►'+ � xrx� arxr Nw ONSITE CONCRETE WASHOUT STRUCTURE WIT14 LINER ML ui� xwaM■iim s MA a ,x coNoia r vassn�uc�uw .o" x w�nA�■a nog uoioa xx�n v+�our sn�ucw�c � m x cfm RIIl1i a.r�r rar�rrs xva arm► ww �i� � IAfM M L�� IMNVa >41� dt !1! i11INUN 1Ei 1� COVAM VM A I CI KVIM 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: 04/01/19 0D PATH LIGHT PRO STORMWATER, ENVIRONMENTAL, ENERGY AND SAFETY COMPLIANCE GUIDING THE WAY FOR A BETTER TOMORROW 1511 EAST STATE ROAD 434, SUITE 3001 WINTER SPRINGS, FL 32708 407-604-3555 PROJECT: z °O CV Z U Z J � c= J z ^<0 CO � rUZ J oo 0 ozU � C) Lu �0 - OoU) 0 U) O ;l_I Of L z J� C) 0 r U) OWNER: LENNAIT LENNAR CAROLINAS, LLC 1941 SAVAGE ROAD, SUITE 100C CHARLESTON, SC 29407 DRAWN BY: SMA DATE: 03/15/2023 REVISIONS: SHEET TITLE: NCGO1 GROUND STABILIZATION PLAN SHEET NUMBER: EC-4 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. 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 mane during weekend or good working holiday periods, and no individual -day rainfall information is order available, record the cumulative rain me-asurement for these un- attended days (anc 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 of the measures inspected, Measures 7 calendar days 2. Date and time of the inspection, and within 24 3. Name of the person performing the 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 actions taken. (3) Stormwater At least once per 1. Identification of the discharge outfalls inspected, discharge 7 calendar days 2. Date and time of the inspection, outfalls (SDCs) and within 24 3. Dame of the person performing the inspection, hours of a rain 4. Evidence of indicators of stormwater pollution such as nil 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. Actions taken to cleanup 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 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 7 calendar days stream has visible increased turbidity from the construction or offsite and within 24 activity, then a record of the 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 of the required reports to the appropriate Division 24 hours Regional Office per Part 111, 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 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-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 of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal shall not commence until the E&SC plan authority has approved these items, (b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit, (c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems, (d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above, (e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and (f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States. PART III 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 tmeframes 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 of the deposition. Division staff may waive the requirement for a written report on a case -by -case basis. If the 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 drys before the date of the bypass, if possible. bypasses [40 CFR The report shall include an evaluation of the anticipated quality and 122.41(rn)(3)] effect of the bypass. (d) Unanticipated • Within 24 hours, an oral or electronic notification. bypasses [40 CFR • Within 7calendardays, a report that includes an evaluation of the 122.41(m)(3)] quality and effect of the bypass. (e) Noncompliance Within 24 hours, an oral or electronic notification. with the conditions . Within 7 calendar days, a report that contains a description of the 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(l)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6). + Division staff may waive the requirement for a written report on a case -by -case basis. NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING NORTH CAROLINA Environmental Quality EFFECTIVE: 04/01/19 0D PATH LIGHT PRO STORMWATER, ENVIRONMENTAL, ENERGY AND SAFETY COMPLIANCE OIIIDINO THE WAY FOR A BETTER TOMORROW 1511 EAST STATE ROAD 434, SUITE 3001 WINTER SPRINGS, FL 32708 407-604-3555 PROJECT: z Oco 00 CV Z U Z J � U) J z ^<0 Cn m � QJ rUZ oo - 0 C, CU C/)wz I->_O I 0 U) 0 Cn O wEI Of L z J� 0 Q 0 U) OWNER: LENNAR CAROLINAS, LLC 1941 SAVAGE ROAD, SUITE 100C CHARLESTON, SC 29407 DRAWN BY: SMA DATE: 03/15/2023 REVISIONS: SHEET TITLE: NCGO1 SELF -INSPECTION PLAN SHEET NUMBER: EC-5