SW1210501_Plansheet - Notes_20210713

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NORTH CAROLINA LAND QUALITY SECTION EROSION CONTROL NOTES
UPDATED FEBRUARY. 2020
NATIVE PLANT SEEDING MIX FOR WETLAND STREAM OR RIVERBANK STABILIZATION
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GENERAL: ALL EROSION CONTROL MEASURES ARE TO BE PERFORMED IN STRICT ACCORDANCE WITH
REQUIREMENTS OF THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NCDEQ), DIVISION
OF ENERGY, MINERAL, AND LAND RESOURCES (DEMLR), LAND QUALITY SECTION. THE FOLLOWING
CONSTRUCTION SEQUENCE SHALL BE COMPLIED WITH FOR ALL WORK.
1. PRIOR TO BEGINNING WORK ON THE PROJECT THE CONTRACTOR SHALL OBTAIN FROM THE OWNER A
COPY OF THE "EROSION AND SEDIMENT CONTROL APPROVAL" FROM THE NORTH CAROLINA DEPARTMENT
OF ENVIRONMENTAL QUALITY (NCDEQ). DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES (DEMLR),
DIVISION OF LAND QUALITY, OR THE LOCAL AUTHORIZED PROGRAM. THE APPROVAL NOTICE MUST BE
AVAILABLE ON —SITE DURING ALL GRADING AND CONSTRUCTION ACTIVITIES.
2. INSTALL ALL EROSION CONTROL MEASURES AS REQUIRED BY THE NORTH CAROLINA DEPARTMENT OF
ENVIRONMENTAL QUALITY, DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES, LAND QUALITY
SECTION.
NOTE: ALL UTILITY INSTALLATION WITHIN 25' OF A RIVER OR STREAM BANK SHALL BE INSTALLED PER
STREAM PROTECTION DURING EXCAVATION DETAIL. NATIVE SEEDING AND MULCHING SHALL BE COMPLETED DAILY
IN AREAS NOTED AS STREAM PROTECTION AREAS. SILT FENCE IN THESE AREAS SHALL NOT BE
INSTALLED CLOSER THAN 5' FROM CREEK BANK UNLESS FIELD CONDITIONS PREVENT SUFFICIENT
CLEARANCE. ALL SILT FENCES SHALL BE INSPECTED AND CLEANED AS NEEDED AFTER EACH RAIN.
3. NO WORK SHALL BE PERFORMED IN STREAM FROM OCTOBER 15 TO APRIL 15 (TO ACCOMMODATE COE
AND DWQ RECOMMENDATIONS CONCERNING WORK IN TROUT WATERS.)
4. CONTRACTOR IS TO PLACE PERMANENT STAKES MARKING CLEARLY THE 25' BUFFER FOR STREAMS
WHERE SHOWN ON THE PLANS AND THE MARKERS ARE TO BE VISIBLE AT ALL TIMES DURING
CONSTRUCTION.
5. OBTAIN CERTIFICATE OF COMPLIANCE THROUGH ON —SITE INSPECTION BY A REPRESENTATIVE OF THE
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY, DIVISION OF ENERGY, MINERAL, AND LAND
RESOURCES, LAND QUALITY SECTION.
6. CONSTRUCTION SHALL BE LIMITED TO 2000' OF CONTIGUOUS ROAD CORRIDOR UNTIL ALL CUTS, FILLS,
AND DITCHES ARE STABILIZED FOR THAT 2000' SECTION. UPON STABILIZATION OF THAT SECTION
ANOTHER 2000' SECTION CAN BE CONSTRUCTED AND STABILIZED.
7. ALL STREAM CROSSINGS AND PERENNIAL STREAMS WILL BE ALIGNED WITH THE NATURAL STREAM
PATTERNS ABOVE AND BELOW THE PROPOSED ROAD. ARCH CULVERTS WILL BE USED AND FOOTERS
WILL BE CONSTRUCTED IN UNDISTURBED BANKS AWAY FROM THE STREAM FLOW.
8. PROCEED WITH GRADING, CLEARING AND GRUBBING. NOTE: NO OFF SITE DISPOSAL OF MATERIAL IS
ALLOWED UNLESS THE DISPOSAL SITE HAS AN APPROVED EROSION CONTROL PLAN.
9. SEED AND PLACE EROSION CONTROL MATTING ON ALL UPLAND CUT AND FILL SLOPES THAT ARE NOT
ROCK IMMEDIATELY UPON COMPLETION OF SLOPE STABILIZATION.
10. ALL TEMPORARY STREAM AND CREEK CROSSINGS FOR EQUIPMENT DURING CONSTRUCTION SHALL BE
MADE USING TEMPORARY BRIDGES. NO STREAM BANK OR STREAM BED DISTURBANCE SHALL BE
ALLOWED FOR EQUIPMENT CROSSINGS.
11. SEED AND MULCH DENUDED AREA WITHIN TIME FRAME SPECIFIED (SEE TABLE). SEED AND SOIL
AMENDMENTS SHALL BE PLACED ON A PREPARED SEEDBED AT THE FOLLOWING RATES PER ACRE.
STRAW MULCH SHALL BE TACKED WITH TACKING AGENT APPLIED BY HYDROSEEDER.
LIME 4,000 LBS
FERTILIZER (10-10-10) 1,000 LBS
KY-31 FESCUE (POA PRATENSIS) 100 LBS (MOWED AND MAINTAINED AREAS ONLY)
OR
CREEPING RED FESCUE 100 LBS (NATURAL AREAS AND STREAMBANKS)
STRAW MULCH 60-80 BALES
FOR SUMMER SEEDING ADD TO THE ABOVE:
GERMAN MILLET (SETARIA ITALICA) 40 LBS
SMALL —STEMMED SUDAN GRASS (SORGHUM BICOLOR) 50 LBS
FOR WINTER SEEDING ADD TO THE ABOVE:
RYE GRAIN (SECALE CEREALE) 120 LBS
IF HYDROSEEDING, WOOD CELLULOSE MAY BE USED IN ADDITION TO STRAW MULCH AT THE RATE OF
1,000 LBS PER ACRE.
ALL SEEDING SHALL BE MAINTAINED, WATERED ETC.., UNTIL A PERMANENT VEGETATIVE GROUND COVER
IS ESTABLISHED OVER ALL DISTURBED AREAS. FOR ALL SLOPES 2:1 OR STEEPER ADD TO THE ABOVE:
PURGE LIVE SEED SWITCHGRASS 4 LBS
BROWNTOP MILLET OR PEARL MILLET (PENNISETUM GLAUCUM) 8 LBS
GRAIN SORGHUM (SORGHUM BICOLOR (L.) MOENCH SSP. BICOLOR) 2 LBS
ALL SLOPES 2:1 OR STEEPER SHALL BE COVERED BY EROSION CONTROL MATTING.
NATIVE SEEDING:
THE CORRECT SEEDBED pH IS 5.5 TO 6.5.
APPLY ZERO NITROGEN AT PLANTING.
INCORPORATE
SOIL AMENDMENTS
INTO TOPSOIL/ROOT
ZONE BEFORE SEEDING.
FIRM SEEDBED
BEFORE SEEDING
(TRAVEL WITH DOZER
CLEATS).
SEEDING DEPTH FOR ALL NATIVE SSP. EXCEPT E.GAMAGRASS (TRIPSACUM DACTYLOIDES) NEED TO BE
1 /4" — 1 /2". GREATER DEPTHS CAUSE HIGH SEED MORTALITY.
SPECIALIZED SEEDING IMPLEMENTS ARE REQUIRED. SEED MIXES AND RATES TO MATCH SEEDER USED. A
NO —TILL, DROP SEEDER OR BROADCASTER WITH PRECISION METERING TO CONTROL SMALL SEED FLOW
AND PICKER WHEEL AGITATORS TO HANDLE FLUFFY SEED ARE BEST SUITED FOR NATIVE SEED.
1. NATIVE SEED MIX SHALL BE APPLIED AT A RATE OF 20 LBS./AC. AND INCLUDE THE FOLLOWING
SPECIES:
25% - BIG BLUESTEM (ANDROPOGON GERARDII)
25% - INDIAN GRASS (SORGHASTRUM NUTANS)
25% - LITTLE BLUESTEM (SCHIZACHYRIUM SCOPARIUM)
25% - SWITCHGRASS (PANICUM VIRGATUM)
2. ADDITIONALLY A TEMPORARY COVER/NURSE CROP MIX SHALL BE APPLIED AT A RATE OF 25
LBS./ACRE AS FOLLOWS:
AUGUST THRU MAY - GREENRYE (SECALE CEREALE)
MAY 1 THRU AUGUST - MILLET (PENNISETUM GLAUCUM)
3. LIVE STAKE SPECIES SHALL CONSIST OF THE FOLLOWING:
25% - SILKY DOGWOOD (CORNUS AMOMUM)
25% - SILKY WILLOW (SALIX SERICEA)
25% - HAZEL ALDER (ALNUS SERRULATA)
25% - ELDERBERRY (SAMBUUS CANADENSIS)
4. ANY SUBSTITUTIONS OR VARIATIONS FROM SPECIFICATIONS ABOVE SHALL BE APPROVED BY THE
PROJECT ENGINEER.
5. NO FERTILIZER SHALL BE USED WITHIN 10' OF TOP OF STREAM OR RIVER BANK.
6. MAINTAIN SOIL EROSION CONTROL MEASURES UNTIL PERMANENT GROUND COVER IS ESTABLISHED.
7. REQUEST FINAL APPROVAL BY THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY,
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES, LAND QUALITY SECTION.
8. REMOVE SOIL EROSION CONTROL MEASURES AND STABILIZE THESE AREAS.
TEMPORARY SEEDING SPECIFICATION
SEEDING MIXTURE:
SPECIES RATE (lb/acre)
RYE (grain) 120
SEEDING DATES:
AUG 15 TO DEC 30
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY
2000 IYac GROUND AGRICULTURAL LIMESTONE AND
750 Ib ac 10-10-10 FERTILIZER.
MULCH:
APPLY 4000Ib/ac STRAW. ANCHOR STRAW BY TACKING
w/ ASPHALT, NETTING, OR A MULCH ANCHORING TOOL.
A DISK w/ BLADES SER NEARLY STRAIGHT CAN BE USED
AS A MULCH ANCHORING TOOL.
MAINTENANCE:
RE —FERTILIZE IF GROWTH IS NOT FULLY ADEQUATE, RE —SEED,
RE —FERTILIZE AND MULCH IMMEDIATELY FOLLOWING EROSION
OR OTHER DAMAGE.
CUT/FILL SLOPES SEEDING SPECIFICATIONS - STEEPER THAN 3:1
SEEDING MIXTURE:
SPECIES RATE (lb/acre)
TALL FESCUE 100
SWITCHGRASS AND PARTRIDGE PEA MIX 30
NURSE PLANTS:
BETWEEN MAY 1 AND AUG 15, ADD 10Ib/ac GERMAN MILLET
OR 15 Ib/ac SUDANGRASS. PRIOR TO MAY 1 OR AFTER AUG 15,
ADD 40 Ib/ac RYE (GRAIN). IT MAY BE BENEFICIAL TO PLANT THE
GRASSES IN LATE SUMMER.
SEEDING DATES:
BEST POSSIBLE
AUG 25 — SEPT 15 AUG 20 — OCT 25
FEB 15 — MAR 20 FEB 1 — APRIL 15
SOIL AMENDMENTS:
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST, OR
APPLY 4000 Ib/ac GROUND AGRICULTURAL LIMESTONE AND
750 Ib/ac 10-10-10 FERTILIZER.
MULCH:
APPLY 4000 Ib/ac GRAIN STRAW OR EQUIVALENT COVER OF
ANOTHER SUITABLE MULCHING MATERIAL, ANCHOR MULCH BY
TACKING w/ ASPHALT, ROVING OR NETTING, NETTING IS THE
PREFERRED ANCHORING METHOD ON STEEP SLOPES.
MAINTENANCE:
MOW NO MORE THAN ONCE A YEAR, RE —FERTILIZE IN THE
SECOND YEAR UNLESS GROWTH IS FULLY ADEQUATE.
RE —SEED, RE —FERTILIZE, RE —MULCH DAMAGED AREAS IMMEDIATELY.
DITCH/OPEN AREA PERMANENT SEEDING SPECIFICATION
SEEDING MIXTURE:
SPECIES RATE (Ib/ac)
TALL FESCUE 250 (6 Ib/1000 sq ft)
NURSE PLANTS:
BETWEEN MAY 1 AND AU 15, ADD 10 Ib/ac GERMAN MILLET
OR 15 Ib/ac SUDANGRASS, PRIOR TO MAY 1 OR AFTER AUG 15,
ADD 40 Ib/ac RYE (GRAIN).
SOIL AMENDMENTS:
APPLY LIME AND FERTILIZE ACCORDING TO SOIL TEST, OR APPLY
4000 Ib/ac GROUND AGRICULTURAL LIMESTONE AND 750 Ib/ac
10-10-10 FERTILIZER.
MULCH:
USE CHANNEL LINING MATERIAL TO COVER THE BOTTOM OF DITCHES.
THE LINING SHOULD EXTEND ABOVE THE HIGHEST CALCULATED DEPTH
OF FLOW. ON CHANNEL SIDE SLOPES ABOVE THE HEIGHT, AND IN
DRAINAGES NOT REQUIRING TEMPORARY LININGS, APPLY 4000 Ib/ac
GRAIN STRAW AND ANCHOR STRAW BY STAPLING NETTING OVER THE TOP.
MULCH AND ANCHORING MATERIALS MUST NOT BE ALLOWED TO WASH
DOWN SLOPE WHERE THEY CAN CLOG DRAINAGE DEVICES.
MAINTENANCE:
INSPECT AND REPAIR MULCH FREQUENTLY. RE —FERTILIZE IN LATE WINTER
ACCORDING TO SOIL TESTS OR APPLY 150 Ib/ac 10-10-10 FERTILIZER
(3 Ib/1000 sq ft). MOW REGULARLY TO A HEIGHT OF 2" TO 4".
FINAL DRAWING
FOR REVIEW
PURPOSES ONLY
NOT RELEASED
FOR
CONSTRUCTION
SIGNED AND DATED:
WASTEWATER TREATMENT PLANT SHEET
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