Loading...
HomeMy WebLinkAboutNCC240309_Site Plan or Location Map_20240205 DATE: PAGE: 12-30-2023 1 NOTES AND APPLICABILITY TO LOT DEVELOPMENT NORTH CARO L I NA STANDARD SEDIMENT AND EROSION 1. This plan is for lots with an Individual disturbed area of 1.00 acre or less, and a total site disturbance of not more than 5.0 acres for individual single family or CONTROL PLAN FOR SMALL RESIDENTIAL LOTS multi-family dwellings. 2. A vicinity map showing the boundaries of the project and access to the site is to either be shown on this standard plan or to accompany this standard plan. 3. A subdivision plat or plan showing numbered lots and the Limits of Disturbance TABLE OF CONTENTS (LoD) is to accompany this standard plan. The LoD includes lots, access to Page measures, staging areas, and utilities that may extend off-site. 1 . Title Sheet 1 4. Lots are "Finished", or at final grade. Mass grading with full stabilization has already occurred or mass grading is not to occur. 2. Lot Information Table 5. The property does not contain nor have jurisdictional waters within 100 feet of the lots. 3. Typical Individual Lot Layout With 6. The site is not located in a High Quality Water Zone. Curb and Gutter - , • 7. No discharges are allowed into impaired waters. . s.Ns� 8. Onsite vehicle or equipment washing is not allowed. 4. Typical Individual Lot Layout With -.. . + 9. This site involves no off-site material storage, waste disposal, or borrow areas. Roadside Ditches % 10. All disturbed areas not built upon shall be provided with permanent ground cover. 001 11. As of April 1, 2019, applicant must apply online at deq.nc.gov/NCGO1 for the 5. NCG-01 Self-Inspection c •. :�''• , ' NCGO1 permit, if applicable. 6. NCG-01 Ground Cover & Material M* 12. The NCDEQ reserves the right to require a site-specific erosion control plan to be ‘ 'Vow *li prepared and submitted for the 30-day review cycle. Handling GENERAL CONSTRUCTION SEQUENCE FOR SMALL 7. Temporary Seeding 2 RESIDENTIAL LOT EROSION AND SEDIMENT CONTROL Recommendations 1. Upon receipt of a Certificate of Plan Approval, notify the appropriate Land Quality office at least 5 business days prior to the start of construction. 8. Permanent Seeding 3 1 2. Install construction entrances(s). 3. Install check dams and/or erosion control blankets in roadside ditch, where exists. Recommendations 4. Install yard inlet protection and perimeter controls (silt fence, silt fence outlets, etc.) • 9. Construction Entrance/Exit 4 ,s' according to the plan. For contiguous lots with different builders or land owners, it is ��'� suggested that each builder/owner install their own silt fence along the shared parcel 10. Inlet Protection / \, boundary. If silt fence is not required along the front of the lot due to the drainage / NC � layout, the builder must provide a measure to limit access through the construction 11 . Rolled Erosion Control Products entrance. Ensure inlets downgrade of disturbances are protected from siltation. (RECP) 5. Proceed with individual lot construction. 12. Silt Fence 5 Location: N 35.3010 W - 82.1340 6. Maintain erosion and sedimentation controls during construction. 7. Provide for ground stabilization after completion of any phase of grading in 13. Silt Fence Outlet 6 accordance with the NPDES timeframes table. Persons responsible for land disturbing activities are responsible for phased inspections to ensure the approved 14. Silt Sock/Wattle For Check Dams PROJECT NAME: Dew Residence erosion and sedimentation control plan is being followed. All erosion control 15. Silt Sock/Wattle For Perimeter and 7 measures shall be inspected at least once per week and after each storm event of PROJECT NUMBER: 12-30-2023 1.0 inches or more in a 24-hour period. The self-inspection report, as well as Inlet Protection instructions for the self-inspection program, can be found at deq.nc.gov/NCG01. 16. Tree Protection DATE OF APPROVAL: 8. Remove any temporary driveway pipe and temporary construction entrance immediately prior to constructing permanent driveway. 9. Once construction is complete and all areas are stabilized, remove any remaining NOTE - FOR ANY PERFORMANCE RESERVATIONS REGARDING THE SEDIMENT CONTROL PLAN (PERFORMANCE erosion or sedimentation controls and stabilize any areas disturbed by their removal. BASED) OR CRITICAL AREAS, A FIELD REVISION OR A CUSTOM PLAN MAY BE REQUIRED 10. Once the last approved lot is complete, notify the appropriate Land Quality office for a close-out inspection. NORTH CAROLINA • �EnvironmentalQuality STANDARD SEDIMENT & EROSION CONTROL PLAN EFFECTIVE DA 1_.11/12/2020 DATE: PAGE: 12-30-2023 2 TEMPORARY SEEDING RECOMMENDATIONS FOR LATE WINTER AND EARLY SPRING Seeding Mixture Species Rate (lb/acre) Rye (grain) 120 TEMPORARY SEEDING RECOMMENDATIONS FOR SUMMER TEMPORARY SEEDING RECOMMENDATIONS FOR FALL Annual lespedeza (Kobe in 50 Piedmont and Coastal Plain, Seeding Mixture Seeding Mixture Korean in Mountains) Species Rate (lb/acre) Species Rate (Ib/acre) Omit annual lespedeza when duration of temporary cover is not to German millet 40 Rye (grain) 120 extend beyond June. In the Piedmont and Mountains, a small-stemmed Sudangrass may be substituted at a rate of 50 lb/acre. Seeding Dates Seeding Dates Mountains—Aug. 15 - Dec. 15 Mountains—Above 2500 feet: Feb. 15 - May 15 Seeding Dates Coastal Plain and Piedmont—Aug. 15 - Dec. 31 Below 2500 feet: Feb. 1- May 1 Mountains—May 15 - Aug. 15 Mulch Piedmont—Jan. 1 - May 1 Piedmont—May 1 - Aug. 15 Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, Coastal Plain—Dec. 1 - Apr. 15 Coastal Plain—Apr. 15 - Aug. 15 netting, or a mulch anchoring tool. A disk with blades set nearly Mulch Mulch straight can be used as a mulch anchoring tool. Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, or a mulch anchoring tool. A disk with blades set nearly straight can be netting, or a mulch anchoring tool. A disk with blades set nearly Maintenance used as a mulch anchoring tool. straight can be used as a mulch anchoring tool. Repair and refertilize damaged areas immediately. Topdress with 50 lb/acre of nitrogen in March. If it is necessary to extend temporary Maintenance Maintenance cover beyond June 15, overseed with 50 lb/acre Kobe (Piedmont and Refertilize if growth is not fully adequate. Reseed, refertilize and mulch Refertilize if growth is not fully adequate. Reseed, refertilize and mulch Coastal Plain) or Korean (Mountains) lespedeza in late February or immediately following erosion or other damage. immediately following erosion or other damage. early March. 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 at the rate of 1-1 tons/acre 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 lb/acre. Both fertilizer and lime should be incorporated into the top 4-6 inches of soil. If a hydraulic seeder is used, do not 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 by raking, harrowing, or other suitable methods for fine grading. The finished grade shall be a smooth even soil surface with a loosen uniformly fine texture. All ridges and depressions shall be removed and filled to provide the approved surface drainage. Planting is to be done immediately after finished grades are obtained and seedbed preparation is completed. .per, '' r NORTH CAROLINA <`,� -; Al Environmental Quality `m `-= TEMPORARY SEEDING RECOMMENDATIONS DATE: PAGE: 12-30-2023 NON-INVASIVE PERMANENT SEEDING 3 RECOMMENDATIONS FOR FALL NON-INVASIVE PERMANENT SEEDING RECOMMENDATIONS FOR LATE WINTER AND EARLY SPRING NON-INVASIVE PERMANENT SEEDING SEEDING MIXTURE SEEDING MIXTURE RECOMMENDATIONS FOR SUMMER Species Rate Hard Fescue 15 lbs/acre Species Rate SEEDING MIXTURE Switchgrass 2.5-3.5 lbs/acre* Centipede 5 lbs/acre Species Rate Indian Grass 5-7 Ibs/acre* Indian Woodoats 1 .5-2.5 Ibs/acre* Indian Woodoats 1 .5-2.5 Ibs/acre* Big Bluestem 5-7 lbs/acre* Virginia Wild Rye 4-6 lbs/acre* Virginia Wild Rye 4-6 Ibs/acre* Indian Woodoats 1 .5-2.5 lbs/acre* Virginia Wild Rye 4-6 lbs/acre* *Depending upon mix with other species. See table 6.11 .d *Depending upon mix with other species. from Chapter 6 of the NC Erosion and Sediment Control See table 6.11 .d from Chapter 6 of the NC *Depending upon mix with other species. See table 6.11 .d from Planning and Design Manual. Erosion and Sediment Control Planning Chapter 6 of the NC Erosion and Sediment Control Planning and and Design Manual. Design Manual. Seeding Dates Coastal or Eastern Piedmont for Centipede- Sept. 1 - May 1 Seeding Dates Seeding Dates Coastal and Piedmont for Indian Woodoats and Virginia Mountains - July 15- Aug 15 Mountains - Hard Fescue- Aug 1 - June 1 Wild Rye- Feb 15 - April 1 Piedmont - Aug 15 - Oct 15 Mountains- Switchgrass, Indian Grass, Big Bluestem- Dec 1 - April 15 Mountains for Indian Woodoats and Virginia Wild Rye- Piedmont and Coastal- Switchgrass, Indian Grass, Big Bluestem- March 1 - May 15 Maintenance: Dec 1 - April 1 Indian Woodoats and Virginia Wild Rye Coastal- Indian Woodoats and Virginia Wild Rye- Sept 1 - Nov 1 Maintenance: are both sun and shade tolerant. Significant maintenance may be required to obtain desired Maintenance: cover once centipede is planted. Acceptable for sodding. Hard Fescue is not recommended for slopes > 5%. Prefers shade. 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 at the rate of 1 to 1 2 tons/acre 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 lb/acre. Both fertilizer and lime should be incorporated into the top 4-6 inches of soil. If a hydraulic seeder is used, do not 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 by raking, harrowing, or other suitable methods for fine grading. The finished grade shall be a smooth even soil surface with a loosen uniformly fine texture. All ridges and depressions shall be removed and filled to provide the approved surface drainage. Planting is to be done immediately after finished grades are obtained and seedbed 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. 2. A North Carolina Department of Agriculture soils test (or equal) is highly recommended to be obtained for all areas to be seeded, sprigged, sodded or planted. 3. Use a seeding mix that will produce fast growing nurse crops and includes non-invasive species that will eventually provide a permanent groundcover. Soil blankets may be used in lieu of nurse crops. Mat, tack or crimp mulch, as needed to stabilize seeded areas until root establishment. Mulch must be applied uniformly over the soil with a cover density of at least 80%. 4. Ground cover shall be maintained until permanent vegetation is established and stable against accelerated erosion. NORTH CAROLINA Environmental Quality PERMANENT SEEDING RECOMMENDATIONS EFFE_..JE DATE:11/12 DATE: PAGE: 12-30-2023 4 / / '� / -le mar., -..unIP, 4 or lb gir>41 9�06. / o0�.il,!>.moo, 4q 4410.0410411) �`` /.wAiiP _:•I 1 I0 40 40 4 Mid or T, ������-vv�����♦ _ of Qo 0 o O o 0 o ro lw ip.I bd ht Of H 4j•e . 0 0 0 0 0 0 .... , Ouse ~-•-•-•-•-•�-•-•~-•-•A-•-•-•~` `� - O O O O O O O O O O O O O O O / r► I I I I I I I I 14 o411 o 0 0 0 hi . • • • •_•r•�•�•. •„•�fi, � I 4.•I�► �-,-i�_..• --p�=�-'-• O O O At t O O O -•-• •`• -1"4400'".0/ • • I I fitI I I I/�►. �- F• h`o1111- 11111 lb' 0 0 0 0 0 0 0 0 �• �• / 6 Min. -,t;.- �.�ezioji sitor iusr," "" •1I����o�,o�o�o�0�o1v1I ,I' a ���arAv. off o> o> o> "•'•� 0 0i1Piorgitefi�i�i �' 1,2-3" Course Aggregate _ 4%492•0;•iv P- Construction: Maintenance: 1 . Clear the entrance and exit area of all vegetation, roots, and other objectionable 1 . Per NCG-01 inspect at least once a week and after each 1 inch or greater rainfall; material and properly grade it. make any required repairs immediately. 2. Place the gravel to the specific grade and dimensions shown on the plans, and 2. Maintain the gravel pad in a condition to prevent mud or sediment from leaving the smooth it. construction site. This may require periodic topdressing with 2 inch stone. 3. Provide drainage to carry water to a sediment trap or other suitable outlet. 3. Immediately remove all objectionable materials spilled, washed or tracked onto public 4. Use geotextile fabrics in order to improve stability of the foundation in locations roadways. subject to seepage or high water table. '" t2„;NORTH CAROLINA . • JiEnvironmentalQuality CONSTRUCTION ENTRANCE / EXIT EFFECTIVE DATE:11/12/2020 DATE: PAGE: 12-30-2023 Wire Fence Filter Fabric 5 Steel Post H Plastic or ----- ,\ 8' Max. Standard Strength fabric with wire fence Wire Backfill trench 6' Max. Extra strength fabric without wire fence Wire Fence / , . and Compact thoroughly Steel Post . u,..!.!..,)il Upslope Plastic or —= 18-24" ow- 41) _ _ _ -------------- it Mfn Ili —MP— . • . . . . Wire ties 8" Min. (_1) ell) 24" If 1 8" down & 4" 24" — vforward along the \— trench Filter Fabric Construction: CROSS SECTION VIEW 1 . Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. 2. Ensure that the height of the sediment fence does not exceed 24 inches above the ground. (Higher fences may impound volumes of water sufficient to cause failure of the structure) Maintenance: 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are 1 . Inspect sediment fences at least once a week and after each 1 necessary, securely fasten the filter cloth only at a support post with 4 feet minimum overlap to the next post. inch or greater rainfall. Make any required repairs immediately. 4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts. Extend the 2. Should the fabric of a sediment fence collapse, tear, wire mesh support to the bottom of the trench. Fasten the wire reinforcement, then fabric on the upslope side of the decompose, or become ineffective, replace it promptly. fence post. Wire or plastic zip ties should have a minimum 50 pound tensile strength. 3. Remove sediment deposits as necessary to provide adequate 5. When a wire mesh support fence is used, space posts a maximum of 8 feet apart. Supports should be driven securely storage volume for the next rain and reduce pressure on the into the ground a minimum of 24 inches. fence. Take care to avoid undermining the fence during 6. Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence. Securely fasten the cleanouts. filter fabric directly to posts. Wire or plastic zip ties should have a minimum of 50 pound tensile strength. 4. Remove all fencing materials and unstable sediment deposits 7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope and bring the area to grade and stabilize it after the contributing from the barrier. drainage area has been properly stabilized. 8. Place 12 inches of fabric along the bottom and side of the 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. .''°,NORTH CAROLINA `,-- Environmental Quality SILT FENCE DATE: PAGE: 12-30-2023h H 6 4' MIN. SILT FENCE T Q T T Q Q - / ii t ,. _ TOP OF SILT FENCE - _ • MUST BE AT LEAST 1' - _ - - ABOVE THE TOP OF • - -_ - _ .. THE WASHED STONE - - - - - STEEL FENCE POST WIRE FENCE HARDWARE CLOTH FRONT VIEW , I FILTERBURYWIRE FABRICFENCE, AND HARDWARE FILTER OF#57 - CLOTH IN TRENCH p WASHED STONE °° •po I STEEL FENCE POST 090 No— SET MAX 2'APART o�p�o� I MIN. 18" INTO SOLID �j°O Do o GROUND 3' FILTER FABRIC �� og�°p °O ON GROUND 0o I NOTES: 9°000p ° 6p 1 . Hardware cloth and gravel should overlay the silt fence at least 12 inches. og 6�j°p°wog °p °go I 2. Stone outlets should be placed on low elevation areas of silt fence and oiU_ p $ c ° �p o __,._•.:,: oq°o••pc°o os°fo° based on field conditions. IMAINTENANCE: 1 . Per NCG-01, inspect outlet at lest once a week and after each 1 inch BURY WIRE FENCE AND HARDWARE CLOTH BURY 6" OF UPPER EDGE OF or greater rainfall event. Complete any required repairs immediately. FILTER FABRIC IN TRENCH 2. Freshen stone when sediment accumulation exceeds 6 inches. 3. Keep mesh free of debris to provide adequate flow. 4. Remove sediment when half of stone outlet is covered. 5. Replace stone as needed to facilitate de-watering. SECTION VIEW -- AV%Environmental Quality `_ SILT FENCE OUTLET DATE: PAGE: 12-30-2023 Silt Sock/ Wattle Silt Sock/ Wattle 7 NOTE: FLOWZ� 3„ Area to be FLOW 3�� Area to be 1 . Other materials providing equivalent protection II II Protected against erosive velocities may be substituted for Protected — — — — W W W W I I II W W W W W W W - use in silt socks or wattles. WI=1 2. Fill silt sock/wattle netting uniformly with compost 12" Min. --------- 2" x 2" 12 Min. --------- 2" x 2" to the desired length such that logs do not deform. Stakes Stakes 3. Silt sock/Wattle(s) should be installed parallel to SECTION and a minimum of 10 feet beyond the toe of a SECTION graded slope. Silt Sock/Wattle(s) located below flat areas should be located at the edge of the land disturbance. The ends of the silt sock/wattle(s) should be turned slightly upslope to F<ppk �, MaX �� ` 'c4Op1i , MaX. �, prevent runoff from going around the end of the $ ` silt sock/wattle(s). 4. Oak or other durable hardwood stakes with a 2 �� b% inch x 2 inch cross section should be driven g��1;'• 410-/ vertically plumb, through the center of the silt �1sock/wattle. Stakes should be placed at a maximum interval of 4 feet or a maximum interval Trench into of 8 feet if the silt sock/wattle is placed in a 4 inch Wood Mulch or Compost - ground 4 Min. trench. To 1/2 height of log 5. In the event staking is not possible (ie. when socks/wattles are used on pavement) heavy UNTRENCHED INSTALLATION ENTRENCHED INSTALLATION* concrete blocks shall be used behind the silt *THIS APPLICATION MAY NOT BE USED WITH COMPOST sock/wattle to hold it in place during runoff events. ISOMETRIC VIEW SOCKS SMALLER THAN 12". MAINTENANCE: 1 . Inspect silt sock/wattle at least weekly and after p;�,, each 1 inch or greater rainfall. Remove '::: COMPOST SOCK INITIAL FLOW RATES accumulated sediment and any debris as Mulch or Compost 'i��A ': Compost Sock 8 Inch 12 Inch 18 Inch 24 Inch 32 Inch needed to allow for adequate flow. for Untrenched Socks i■ Area To Be .I Design Diameter (200 nm) (300 nm) (450 nm) (600 nm) (750 nm) 2. Silt sock/Wattle must be replaced if clogged or IN Protected torn. I. Maximum Slope 600 Feet 750 Feet 1,000 Feet 1,300 Feet 1,650 Feet 3. If ponding becomes excessive, the silt Sheet Flower II►/ Length (<2%) (183 m) (229 m) (305 m) (396 m) (500 m) ;: Silt Sock/ sock/wattle may need to be replaced with a IC Hydraulic Flow 7.5 gpm/ft 11.3 gpm/ft 15.0 gpm/ft 22.5 gpm/ft 30.0 gpm/ft larger diameter or a different measure. IC Wattle Through Rate (94 I/m/m (141 I/m/m (188 I/m/m (281 I/m/m (374 I/m/m Work Area :. ) ) ) ) ) 4. Reinstall if damaged or dislodged. CC, 5. Silt socks/wattles shall be inspected until land disturbance is compete and the area above the measure has been permanently stabilized. rsr ql �'!'I�E Environmental alQuality SILT SOCK / WATTLE FOR PERIMETER AND INLET PROTECTION