22081 12-06-23 Plans - revised

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N/F {� -� +•� / / PARCEL ID 10200021
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MIWKEN CHARLES W � � �• . _ % BABSON KENNETH R
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PARCEL ID 079357 1 { - - -- 0
13 WHITE JACKIE R I00
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PARCEL ID 090176 PARCEL ID 093644 f i' ,` W I `III O C7 o
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ACREAGE \ 1 .` '~ . ' Q
PARCELS ,.+�
007509, 007510
TOTAL SITE AREA 405.67
EXISTING WETLANDS 20.86 \ j/�/
DISTURBED WETLANDS 0 '
UNDISTURBED WETLANDS 20.86 i
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CATEGORY ACREAGE 1 , '�` 'i '-'=•+• `• _ _ --- --- — — — I 22081
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MINE EXCAVATION 97.31
PROCESSING AREA/HAUL ROADS 0,79 \ ' �•«��••-' - - PARCEL ID/11600008 {, -I /' / DES.
JPN
«• KING WESLEY E JR �--- „�--I /
TAILINGS/SEDIMENT PONDS, DEWATERING BASIN 0.80 ZONING - RR { ' / �-� _ CKD. JPN
STOCKPILES p \ I VACANT �_ "� I DRWN. EDB
WASTE PILES p
BUFFER AREA / UPLAND AREA 285.91 _--___ XI —_-- �— _ DATE 12/06/23
TOTAL AREA TO BE PERMITTED 405.67 ��
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NOTES: / / - - - I 1 2 9�•7
1. MINING TO COMMENCE ON AN AS NEEDED BASIS. _/ N F 1 \,• SEAL
2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. PARCEL ID 11600010
3. NO PERMANENT STRUCTURES OR PERMANENT EMPLOYEES ARE PROPOSED ON SITE. / \ \ _ ____________-__-__--_-__-__-__------------ -- - — -/ / FORMYDUVAL DANIEL 041620
4. THE HOURS OF OPERATION WILL BE MONDAY THRU FRIDAY FROM 7:30 AM TO 5:00 PM. \' _ _ -__--_-- -__- ------------------ - T /` PRATT
5. BUFFERS SHALL BE NATURAL VEGETATION SUPPLEMENTED WITH PLANTINGS AS \ ` ZONING - RR \ k '. �OS�,NGI�EE P��
NECESSARY TO MEET REQUIREMENTS. / / VACANT I `
6. A 30FT ACCESS EASEMENT SHALL BE PROVIDED FOR ALL MINES TO ALLOW �( F �
ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. \ � i,�PHIK;�,�.�
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL / ,p
ROAD AS NECESSARY. ----/-------------
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SECTION A-A
� � 00 111=1I1—II 22081
STONE CHECK DAMI=1I1=III-1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I I—I I1 I I1=1I I—II
=-RTT— III1=III=III=1 I IhilII11r—= I F— DES. JPN
— — — — 6'-0" TYPICAL — — — - — — — — — — — cKD. JPN
STONE CHECK DAM MAINTENANCE: SINGLE FIBERGLASS DRWN. EDB
INSPECT CHECK DAMS AND CHANNELS AT LEAST WEEKLY ANS ROVING CHANNEL
LEGENDAFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL LINER DATE 12/06/23
EVENT AND REPAIR IMMEDIATELY. CLEAN OUT SEDIMENT, STRAW, TEMPORARY DIVERSION S W A L E
LIMBS, OR OTHER DEBRIS THAT COULD CLOG THE CHANNEL , o!I ���� ,
- - - - - PROPERTY LINE / MINE PERMIT BOUNDARY WHEN NEEDED. NTS �.�\A GSA
FL FL APPROXIMATE FLOOD PLAIN ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK
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AE AE APPROXIMATE AE FLOOD LINE THE DAM. CORRECT ALL DAMAGE IMMEDIATELY. IF SIGNIFICANT = S E A L
EROSION OCCURS BETWEEN DAMS, ADDITIONAL MEASURES CAN = 04 620
LOE-LOE LIMITS OF EXCAVATION NOTES: BE TAKEN SUCH AS, INSTALLING A PROTECTIVE RIPRAP LINER
1. MINING TO COMMENCE ON AN AS NEEDED BASIS. . `
2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. IN THAT CHANNEL. �� Q ��.NGINE�•
3. NO PERMANENT STRUCTURES OR PERMANENT
YEES
E PROPOSED ON SITE.
54.. BUAMS AS
FFERS HOURS
URSHALL BEOPERATION
WILL BE TIONDAY THRUEOFRIDD WITH PLANTINGS 7:30 AM TO 5:00 PM. NEEDED TOREMOVE D PREVENT IMENT CDAMAGE TTO ED BHANNDELHVEGETATION, ALLOW �'''s�PH�li(ii0%,
WETLANDS AREA NECESSARY TO MEET REQUIREMENTS. THE CHANNEL TO DRAIN THROUGH THE STONE CHECK DAM,
6. A 30FT ACCESS EASEMENT SHALL BE PROVIDED FOR ALL MINES TO ALLOW AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER
ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. THE DAM. ADD STONES TO DAMS AS NEEDED TO MAINTAIN
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL DESIGN HEIGHT AND CROSS SECTION.
ROAD AS NECESSARY.UNDISTURBED VEGETATED BUFFER SCALE :
1 " = 100' Cl
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SECTION A_A
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22081
STONE CHECK DAM
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STONE CHECK DAM MAINTENANCE: 6'-0" TYPICAL
SINGLE FIBERGLASS DRwN. EDB
LEG INSPECT CHECK DAMS AND CHANNELS AT LEAST WEEKLY ANS ROVING CHANNEL
AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL DATE 12/06/23
EVENT AND REPAIR IMMEDIATELY. CLEAN OUT SEDIMENT, STRAW, TEMPORARY DIVERSION S W A L E LINER
LIMBS, OR OTHER DEBRIS THAT COULD CLOG THE CHANNEL �
PROPERTY LINE / MINE PERMIT BOUNDARY WHEN NEEDED. NTS f ``% y\ A••
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1. MINING TO COMMENCE ON AN AS NEEDED BASIS. BE TAKEN SUCH AS, INSTALLING A PROTECTIVE RIPRAP LINER %` Z.
-LOE—LOE LIMITS OF EXCAVATION 2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. IN THAT CHANNEL. v'•.Fi� (��••4
3. NO PERMANENT STRUCTURES OR PERMANENT EMPLOYEES ARE PROPOSED ON SITE. '•�o�+' •G�NE•'
4. THE HOURS OF OPERATION WILL BE MONDAY THRU FRIDAY FROM 7:30 AM TO 5:00 PM. REMOVE SEDIMENT ACCUMULATED BEHIND THE DAMS AS "-11 FPH K.8�♦♦♦
5. BUFFERS SHALL BE NATURAL VEGETATION SUPPLEMENTED WITH PLANTINGS AS NEEDED TO PREVENT DAMAGE TO CHANNEL VEGETATION, ALLOW
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ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. THE DAM. ADD STONES TO DAMS AS NEEDED TO MAINTAIN
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL ROAD AS NECESSARY. DESIGN HEIGHT AND CROSS SECTION.
UNDISTURBED VEGETATED BUFFER SCALE : 1 " = 1 OO'-1 2
0 100 200 300

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4. EXCAVATE DIVERSION DITCHES TO CHANNEL FLOW TO SEDIMENT BASIN STONE ON UPSTREAM � "
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6. STABILIZE & SEED DISTURBED AREAS FILTER
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Licence#C-3641
• •' . � �_=III
SECTION A-A
11 I-1 I-1 I-1 I I-III-III-11 -III-I 1-III-I 11- Co III-III-) I GG 2208 v1
STONE CHECK DAM _ _ _ I=1I1=1I1=1I1=1I1=1I1=1I I_I I1=1I1=1I1=1I1=1I1= 8111,11
=1 I I=1 I=1 I I III=1 I I-III III=III-III=III=III=III=III=III=1 I =1 11= _ _ _ :11 I=1 I Ml 11=1 I DES. JPN
— — — — — — 6'-0" TYPICAL — — — - — — — — — — cKo. JPN
STONE CHECK DAM MAINTENANCE: SINGLE FIBERGLASS DRWN. EDB
LEGEND INSPECT CHECK DAMS AND CHANNELS AT LEAST WEEKLY ANS ROVING CHANNEL
AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL DATE 12/06/23
EVENT AND REPAIR IMMEDIATELY. CLEAN OUT SEDIMENT, STRAW, TEMPORARY DIVERSION S W A L E LINER
LIMBS, OR OTHER DEBRIS THAT COULD CLOG THE CHANNEL ,�tlill
— — — — PROPERTY LINE / MINE PERMIT BOUNDARY WHEN NEEDED. NITS ♦♦,%N C R
FL FL APPROXIMATE FLOOD PLAIN ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK Q:•' E �, .•�?,���
DAM AND EROSION FROM HIGH FLOWS AROUND THE EDGES OF ��
AE AE APPROXIMATE AE FLOOD LINE THE DAM. CORRECT ALL DAMAGE IMMEDIATELY. IF SIGNIFICANT S AL �•
EROSION OCCURS BETWEEN DAMS, ADDITIONAL MEASURES CAN = 04 6 0 =
NOTES: BE TAKEN SUCH AS INSTALLING A PROTECTIVE RIPRAP LINER
—LOE—LOE LIMITS OF EXCAVATION 1. MINING TO COMMENCE ON AN AS NEEDED BASIS. v
IN THAT CHANNEL. v
2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. ' 0 ../
.!GINE�•• a�♦�
4. TH3. OE HOURSENT OF OPERATIONS OR WILL BERMANENT MONDAY THRUOYEES FRIDAY ARE
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7:30 AMOTO SITE.:00 PM. NREMOVE EEDED S DIM E T AC UMULAT D B HIIN DELH E DETATION, ALLOW �',,' K/��P`♦♦♦
5. BUFFERS SHALL BE NATURAL VEGETATION SUPPLEMENTED WITH PLANTINGS AS
WETLANDS AREA NECESSARY TO MEET REQUIREMENTS. THE CHANNEL TO DRAIN THROUGH THE STONE CHECK DAM,
6. A 30FT ACCESS EASEMENT SHALL BE PROVIDED FOR ALL MINES TO ALLOW AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER
ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. THE DAM. ADD STONES TO DAMS AS NEEDED TO MAINTAIN
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL DESIGN HEIGHT AND CROSS SECTION.
ROAD AS NECESSARY.UNDISTURBED VEGETATED BUFFER SCALE :
1 " = 10 0' C3
0 100 200 300

LEGEND
m
— — — — — — PROPERTY LINE / MINE PERMIT BOUNDARY
FL FL APPROXIMATE FLOOD PLAIN 2'-0" MIN. /
AE AE APPROXIMATE AE FLOOD LINE FILTER / z
FABRIC o J
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AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL I BED USED AS TSF V
EVENT AND REPAIR IMMEDIATELY. CLEAN OUT SEDIMENT, STRAW, 20 HAUL
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BE TAKEN SUCH AS, INSTALLING A PROTECTIVE RIPRAP LINER / �� Z m 0
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AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER
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1. MINING TO COMMENCE ON AN AS NEEDED BASIS. \ \ a I D1ST�RgED F-
2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. / / U vEGE�p,�RD
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3. NO PERMANENT STRUCTURES OR PERMANENT EMPLOYEES ARE PROPOSED ON SITE. BU�E
4. THE HOURS OF OPERATION WILL BE MONDAY THRU FRIDAY FROM 7:30 AM TO 5:00 PM. / \ \ I I (\� / W W o
5. BUFFERS SHALL BE NATURAL VEGETATION SUPPLEMENTED WITH PLANTINGS AS \ d N
NECESSARY TO MEET REQUIREMENTS. \ I �. _ ,� N
6. A 3OFT ACCESS EASEMENT SHALL BE PROVIDED FOR ALL MINES TO ALLOW \ \ I I Z N
ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. \ y V W U
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL ` \� a ' \ � \ J W Z
ROAD AS NECESSARY. \ I I
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3. BEGIN CLEARING & GRUBBING
4. EXCAVATE DIVERSION DITCHES TO CHANNEL FLOW J a I I I a \
TO SEDIMENT BASIN
5. CONTINUE CONSTRUCTION
6. STABILIZE & SEED DISTURBED AREAS \ J l , a �i MINE PERMIT
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TEMPORARY/PERMANENT SKIMMER BASIN CONSTRUCTION SPECIFICATION SITE WORK NOTES: m
6' W E.S. FABRIC GRASS SPECIFICATION 1. THE CONTRACTOR SHALL VISIT THE SITE TO BECOME FAMILIAR WITH FIELD
8 W/ WIRE MESH CONSTRUCTION CONDITIONS.
1. CLEAR, GRUB, AND STRIP THE AREA UNDER THE EMBANKMENT OF ALL VEGETATION 2. CONTRACTOR SHALL COORDINATE WORK WITHIN NCDOT AND LOCAL RIGHT
STEEL POST 1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP OVER AND ROOT MAT. REMOVE ALL SURFACE SOIL CONTAINING HIGH AMOUNTS OF ORGANIC OF WAYS WITH PROPER AUTHORITIES AND SHALL MEET ANY REQUIREMENTS
WIRE MESH FOR STANDARD FABRIC ADVERSE SOIL CONDITIONS. SKIMMER NOTE: MATTER AND STOCKPILE OR DISPOSE OF IT PROPERLY. HAUL ALL OBJECTIONABLE AS TO TRAFFIC CONTROL AND CONNECTION TO EXISTING STREETS.
2. RIP THE ENTIRE AREA TO A 6 INCH DEPTH. SKIMMER MUST FLOAT ON TOP OF MATERIAL TO THE DESIGNATED DISPOSAL AREA. PLACE TEMPORARY SEDIMENT 3. CLEARING AND GRUBBING: REMOVE ALL TREES AS REQUIRED UNLESS
MIN. 14 GA. o x z STANDARD OR EXTRA STRENGTH 3. REMOVE ALL ROCKS, ROOTS AND OTHER OBSTRUCTIONS LEAVING SURFACES WATER TO WORK PROPERLY. CONTROL MEASURES BELOW BASIN BS NEEDED.
Q - VENT OPENING FOR OTHERWISE NOTED TO REMAIN, STUMPS, ROOTS, SHRUBBERY, ASPHALT,
6x6 MESH FOR I � FILTER FABRIC SMOOTH AND UNIFORM. CONTRACTOR SHALL VERIFY THAT 2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS, WOODY CONCRETE, STRUCTURES, BURIED UTILITIES, STORAGE TANKS, ETC. WITHIN z
w__ N J m WATER ENTRY
STANDARD FABRIC �N�� 4. APPLY AGRICULTURAL LIME AND FERTILIZER UNIFORMLY AND MIX WITH SOIL. THE BARREL LENGTH WILL ALLOW VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE MATERIAL. PLACE THE FILL LIMITS OF CONSTRUCTION. O J
DIRECTION OF WATER FLOW LIME: 45 LBS. PER 1000 S.F. SKIMMER TO FLOAT AT EMERGENCY IN LIFTS NOT TO EXCEED 9 INCHES, AND MACHINE COMPACT IT. OVER FILL THE I-
4. STRIPPING: BEFORE EXCAVATING OR FILLING, REMOVE ALL TOPSOIL,
I ��: PHOSPHOROUS: 20 LBS PER 1000 S.F. SPILLWAY ELEVATION. EMBANKMENT 6 INCHES TO ALLOW FOR SETTLEMENT. WOOD, LEAVES, AND ANY OTHER UNSUITABLE MATERIAL.
FERTILIZER: 17 LBS. PER 1000 S.F. 3. SHAPE THE BASIN TO THE SPECIFIED DIMENSIONS. PREVENT THE SKIMMING DEVICE 5. MUCKING: REMOVE ANY SOFT, ORGANIC SILT MATERIALS AND EXISTING Q
5. CONTINUE TILLAGE UNTIL A WELL PULVERIZED, FIRM, UNIFORM SEED BED IS FROM SETTLING INTO THE MUD BY EXCAVATING A SHALLOW PIT UNDER THE SKIMMER cn
ANCHOR FABRIC SKIRT BURIED CONSTRUCTION DEBRIS AS REQUIRED AND FILL TO SUBGRADE C z Z
o PREPARED 4-6 INCHES DEEP. OR PROVIDING A LOW SUPPORT UNDER THE SKIMMER OF STONE OR TIMBER. ELEVATIONS WITH A CLEAN SELECT-FILL COMPACTED AS SPECIFIED. o O ~I z MIN. 8" DEEP & 4" WIDE. 6. SEED ON A FRESHLY PREPARED SEED BED AND COVER SEED LIGHTLY. 4. PLACE THE BARREL (TYPICALLY 4-INCH SCHEDULE 40 PVC PIPE ON A FIRM,
N 2 - 3 LBS PER 1000 S.F. (SEE MIXTURE BELOW ) 6. DISPOSAL: CLEARED, GRUBBED, STRIPPED OR EXCAVATED SPOIL SHALL
) SMOOTH FOUNDATION OF IMPERVIOUS SOIL. DO NOT USE PERVIOUS MATERIAL BE REMOVED FROM SITE AND DISPOSED OF IN ACCORDANCE WITH ALL > O
7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH. OPENING FOR WATER ENTRY SUCH AS SAND, GRAVEL, OR CRUSHED STONE AS BACKFILL AROUND THE PIPE. cn
GRAIN STRAW & HAY AT 75 TO 100 LBS PER 1000 S.F. APPLICABLE LOCAL AND STATE CODES.
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PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY IN 4-INCH LAYERS AND 7. BORROW MATERIAL: THE CONTRACTOR SHALL FURNISH BORROW oo� �
WOOD CHIPS AT 500 LBS. PER 1000 S.F. COMPACT IT UNDER AND AROUND THE PIPE TO AT LEAST THE SAME DENSITY AS THE
NOTES: JUTE & MESH AS PER MANUFACTURER FLOAT MATERIAL REQUIRED FROM OFF SITE AND OBTAIN ALL REQUIRED PERMITS
FLEXIBLE JOINT ADJACENT EMBANKMENT. CARE MUST BE TAKEN NOT TO RAISE THE PIPE FROM THE ASSOCIATED WITH BORROW OPERATIONS. Oz
1. SYN. FENCE FABRIC SHALL BE MIN. OF 30" IN WIDTH 8. ASPHALT FOR ANCHORING MULCH SHALL BE TYPE SS-1 EMULSION AND FIRM CON!ACT WITH ITS FOUNDATION WHEN COMPACTING UNDER THE PIPE HAUNCHES. 8. FILL AND COMPACTION: AFTER STRIPPING THOSE AREAS DESIGNATED TO V
WITH 30 LB IN TENSILE STRENGTH FOR STANDARD FABRIC APPLIED AT A RATE OF 1000 GAL. PER ACRE FOR SLOPE STABILIZATION, w CV
/ AND 150 GAL PER TON OF STRAW FOR ANCHORING STRAW. BARREL PIPE RECEIVE FILL SHOULD BE PROOFROLLED. THE TOP 8" OF SUBGRADE SHALL
. N
AND 50 LB/IN FOR EXTRA STRENGTH. REFER TO TABLE FOR REQUIRED LENGTH. PLACE A MINIMUM DEPTH OF 2 FEET OF COMPACTED BACKFILL OVER THE PIPE BE COMPACTED TO AT LEAST 98% OF MAXIMUM DENSITY AT OPTIMUM Q o
9. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS OR RESEED SPILLWAY BEFORE CROSSING IT WITH CONSTRUCTION EQUIPMENT. IN NO CASE N
2. FABRIC SHALL BE CONTINUOUS LENGTH. IF JOINTS ARE WITHIN THE PLANTING SEASON, IF POSSIBLE. IF GRASS STAND SHOULD BE MOISTURE CONTENT. ANY AREA WHICH PUMPS OR RUTS EXCESSIVELY
NECESSARY, LAP FABRIC POST TO POST. SHOULD THE PIPE CONDUIT BE INSTALLED BY CUTTING A TRENCH THROUGH THE DAM SHOULD BE UNDERCUT AND REPLACED WITH A CLEAN, SILTY OR CLAYEY
OVER 60% DAMAGED, REESTABLISH FOLLOWING ORIGINAL LIME, FERTILIZER 3. STEEL POST SHALL BE MIN 4' IN HEIGHT AND BE OF THE AND SEEDING RATES. AFTER THE EMBANKMENT IS COMPLETE.5. ASSEMBLE THE SKIMMER FOLLOWING THE MANUFACTURER INSTRUCTIONS, OR SAND HAVING A UNIFIED SOIL CLASSIFICATION OF SP, SM, OR SC. FILL J
SELF-FASTENER STEEL ANGLE TYPE. 10. CONSULT CONSERVATION INSPECTOR ON MAINTENANCE, TREATMENT, AND MATERIAL 5" OUTSIDE OF BUILDING AREAS SHALL THEN BE PLACED IN O
AS DESIGNED. m Z
FERTILIZATION AFTER PERMANENT COVER IS ESTABLISHED. OUTLET END LAYERS NOT TO EXCEED 8" AND COMPACTED TO AT LEAST 95% OF THE
6. LAY THE ASSEMBLED SKIMMER ON THE BOTTOM OF THE BASIN WITH THE � r ..
TEMPORARY SILT FENCE 11. SEED FOR TEMPORARY AND PERMANENT APPLICATIONS SHALL BE: CONNECT TO OUTLET AREA 1: 4.0" SKIMMER WITH 3.3" ORIFICE DIAMETER FLEXIBLE JOINT AT THE INLET OF THE BARREL PIPE. ATTACH THE FLEXIBLE JOINT TO STANDARD PROCTOR MAXIMUM DRY DENSITY (ASTM D-698) WITH THE � �.
NTS 24% BERMUDA GRASS REFER TO TABLE FOR AREA 2: 4.0" SKIMMER WITH 3.9" ORIFICE DIAMETER
2 % CARPET GRASS PIPE OR RISER. THE BARREL PIPE AND POSITION THE SKIMMER OVER THE EXCAVATED PIT OR UPPER 12 INCHES OF SUBGRADE BEING COMPACTED TO 98% OF THE (n
20% TURF FESCUE 10% CREEPING RED FESCUE REQUIRED DIAMETER AREA 3: 3.0" SKIMMER WITH 2.9" ORIFICE DIAMETER STANDARD PROCTOR MAXIMUM DRY DENSITY. FILL MATERIALS WITHIN
SUPPORT. BE SURE TO ATTACH A ROPE TO THE SKIMMER AND ANCHOR IT TO THE W
SIDE OF THE BASIN. THIS WILL BE USED TO PULL THE SKIMMER TO THE SIDE FOR BUILDING AREAS TO A LINE OUTSIDE THE BUILDING AREAS SHALL BE Z
24% ANNUAL RYE GRAIN AREA 4: 4.0" SKIMMER WITH 3.9" ORIFICE DIAMETER MAINTENANCE. PLACED IN LAYERS NOT TO EXCEED 8" AND COMPACTED TO AT LEAST 98% Z
*
BERMUDA SEED SHALL BE HULLED FOR WARM WEATHER O
PLANTING. PURITY OF SEED SHALL BE A MIN. OF 98% AND 7, EARTHEN SPILLWAYS---INSTALL THE SPILLWAY IN UNDISTURBED SOIL TO THE OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY (ASTM D-698) WITH
GERMINATION SHALL BE A MIN. OF 85%. GREATEST EXTENT POSSIBLE. THE ACHIEVEMENT OF PLANNED ELEVATIONS, GRADE, THE UPPER 12 INCHES OF SUBGRADE BEING COMPACTED IN 6 INCH
DESIGN WIDTH, AND ENTRANCE AND EXIT CHANNEL SLOPES ARE CRITICAL TO THE LAYERS TO 100% OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY. IN Q V
ALL DISTURBED AREA SHALL BE SEEDED WITHIN 15 DAYS OF THE COMPLETION OF STANDARD SKIMMER DETAIL TAIRCLOTH) SUCCESSFUL OPERATION OF THE SPILLWAY. THE SPILLWAY SHOULD BE LINED AREAS WHERE NO STRUCTURAL FILL IS TO BE PLACED THE UPPER 12 Z Cn
GRADING. CONSULT CONSERVATION ENGINEER OR SOIL CONSERVATION SERVICE FOR WITH LAMINATED PLASTIC OR IMPERMEABLE GEOTEXTILE FABRIC. THE FABRIC MUST BE INCHES OF IN-PLACE SUBGRADE SHOULD BE COMPACTED TO AT LEAST 98%
ADDITIONAL INFORMATION CONCERNING OTHER ALTERNATIVES FOR VEGETATION OF N.T.S. WIDE AND LONG ENOUGH TO COVER THE BOTTOM AND SIDES AND EXTEND ONTO THE OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY. IF THE MATERIAL IS Q
DENUDED AREAS. THE ABOVE VEGETATION RATES ARE THOSE WHICH DO WELL TOP OF THE DAM FOR ANCHORING IN A TRENCH. THE EDGES MAY BE SECURED WITH TOO DRY TO COMPACT TO THE REQUIRED DENSITY EACH LAYER SHALL BE (n cn m
UNDER LOCAL CONDITIONS, OTHER SEEDING SCHEDULES MAY BE POSSIBLE. 8-INCH STAPLES OR PINS. THE FABRIC MUST BE LONG ENOUGH TO EXTEND DOWN WETTED IN ACCORDANCE WITH COMPACTION REQUIREMENTS. IF THE MATERIAL C
THE SLOPE AND EXIT ONTO STABLE GROUND. THE WIDTH OF THE FABRIC MUST BE IS TOO WET TO SECURE PROPER COMPACTION, IT SHALL BE HARROWED J G
ONE PIECE, NOT JOINED OR SPLICED; OTHERWISE WATER CAN GET UNDER THE REPEATEDLY OR OTHERWISE AERATED WITH SUITABLE EQUIPMENT UNTIL Q c
FABRIC. IF THE LENGTH OF THE FABRIC IS INSUFFICIENT FOR THE ENTIRE LENGTH OF OPTIMUM MOISTURE CONTENT IS OBTAINED. FILL SHALL BE PLACED IN SUCH G J
THE SPILLWAY, MULTIPLE SECTIONS, SPANNING THE COMPLETE WIDTH, MAY BE USED. A MANNER THAT THE SURFACE WILL DRAIN READILY AT ALL TIMES. SEE Lu m O
NPDES STABILIZATION TIMEFRAMES THE UPPER SECTION(S) SHOULD OVERLAP THE LOWER SECTIONS) SO THAT WATER STRUCTURAL NOTES AND SOILS REPORT FOR ADDITIONAL REQUIREMENTS.
TOP TOP CANNOT FLOW UNDER THE FABRIC. SECURE THE UPPER EDGE AND SIDES OF THE 9• LAYOUT: THE CONTRACTOR SHALL PROVIDE ALL LAYOUT REQUIRED TO U
SITE AREA DESCRIPTION STABILIZATION TIMEFRAME EXCEPTIONS - FABRIC IN A TRENCH WITH STAPLES OR PINS. (ADAPTED FROM "A MANUAL FOR CONSTRUCT HIS WORK.
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DESIGNING, INSTALLING AND MAINTAINING SKIMMER SEDIMENT BASINS." FEBRUARY, 10. THE CONTRACTOR IS RESPONSIBLE FOR THE LOCATION AND PROTECTION
PERIMETER DIKES, SWALES, DITCHES AND SLOPES 7 DAYS NONE OF EXISTING UTILITIES DURING CONSTRUCTION.
BOTTOM ,I 1999. 1. W. FAIRCLOTH & SON.).
J \G I 11. EXISTING
BY OWNER.
INFORMATION BY GIS & AERIAL PHOTOGRAPHY AND
�� HIGH QUALITY WATER (HQW) ZONES 7 DAYS NONE 1 8, INLETS-DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION.
Q 3 3 USE TEMPORARY SLOPE DRAINS OR DIVERSIONS WITH OUTLET PROTECTION TO DIVERT 12. THE CONTRACTOR SHALL VERIFY DIMENSIONS AT JOBSITE. U
SO' SLOPES STEEPER THAN 3:1 7 DAYS S SLOPES ARE :1, OR LESS IN LENGTH AND ARE NOT SEDIMENT LADEN WATER TO THE UPPER END OF THE POOL AREA TO IMPROVE BASIN 13. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION OF a
M/N STEEPER THAN 2:1, 14 DAYS ARE ALLOWED TRAP EFFICIENCY (REFERENCES: RUNOFF CONTROL MEASURES AND OUTLET RELOCATION OR DISCONNECTION OF ALL EXISTING UTILITIES WITH
O SLOPES 3:1 OR FLATTER 14 DAYS 7 DAYS FOR SLOPES GREATER THAN 50' IN LENGTH PROTECTION. W Q
APPLICABLE AGENCIES AND AUTHORITIES.
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1 14 DAYS NONE, EXCEPT FOR PERIMETERS AND HQW ZONES SEDIMENT BASIN SECTION 14. ALL PAVEMENT AND BASE MATERIALS AND WORKMANSHIP SHALL r Z
9. EROSION CONTROL-CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA CONFORM TO NCDOT STANDARDS.
N.T.S. IS MINIMIZED. DIVERT SURFACE WATER AWAY FROM BARE AREAS. COMPLETE THE 15. ALL AREAS SHALL BE GRADED FOR POSITIVE DRAINAGE.
EMBANKMENT BEFORE THE AREA IS CLEARED. STABILIZE THE EMERGENCY SPILLWAY 16 CONTRACTOR SHALL NOTE THAT EARTHWORK QUANTITIES ARE HIS �
EMBANKMENT AND ALL OTHER DISTURBED AREAS ABOVE THE CREST OF THE RESPONSIBILITY. PLANS DO NOT REPRESENT A BALANCED EARTHWORK W
PRINCIPAL SPILLWAY IMMEDIATELY AFTER CONSTRUCTION (REFERENCES: SURFACE CONDITION. a N
STABILIZATION). H op
10. INSTALL POROUS BAFFLES AS SPECIFIED IN PRACTICE 6.65, POROUS BAFFLES. `-
6" MIN. GENERAL NOTES: CLASS A STONE Q x N
� 11, AFTER ALL THE SEDIMENT-PRODUCING AREAS HAVE BEEN PERMANENTLY EROSION CONTROL NOTES AND MAINTENANCE PLAN
2" _ 3» STABILIZED, REMOVE THE STRUCTURE AND ALL THE UNSTABLE SEDIMENT. 1. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED FOR W Z
�L DETERMINE BORROW PIT DEWATERING BASIN SIZE USING SMOOTH THE AREA TO BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY RU _ -J
COARSE AGGREGATE V = 8.0203 * Q * T, WHERE V IS VOLUME (Fr), Q IS FILTRATION REFERENCES: SURFACE STABILIZATION). BUTSTA INNO CASE,LITY AND OPERATION
NHANLONCIEGEVERYYWEEK AND WITHIN HOURSNG d O cxi�
PUMP FLOW RATE (GPM), AND T IS DEWATERING TIME (HR). GEOTEXTILE ( a Q
USE MAXIMUM FLOW RATE OF 1000 GPM AND A MINIMUM EVERY HALF-INCH RAINFALL. P�
DEWATERING TIME OF 2 HOURS. MAINTENANCE 2. ALL POINTS OF EGRESS WILL HAVE CONSTRUCTION ENTRANCES THAT WILL
BE PERIODICALLY TOP-DRESSED WITH AN ADDITIONAL 2 INCHES OF #4 STONE
TEMPORARY GRAVEL E A NON-PERFORATED, STONE ENERGYRISER SHALL INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT TO MAINTAIN PROPER DEPTH. THEY WILL BE MAINTAINED IN A CONDITION TO
MATERIAL WITHBA FLASHBOARDOPTION. SMOOTH OR CORRUGATED STEEL POST DISSIPATOR (ONE-HALF INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. PREVENT MUD OR SEDIMENT FROM LEAVING THE SITE. IMMEDIATELY REMOVE
CONSTRUCTION ENTRANCE REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN OBJECTIONABLE MATERIAL SPILLED WASHED OR TRACKED ONTO THE
NTS CONSTRUCT THE COIR FIBER BAFFLE IN ACCORDANCE WITH ROADWAY SEDIMENT ACCUMULATES TO ONE-HALF THE HEIGHT OF THE FIRST BAFFLE. PULL CONSTRUCTION ENTRANCE OR ROADWAYS.
STANDARD DRAWING 1640.01 AND WITH MATERIAL THAT MEETS THE THE SKIMMER TO ONE SIDE 80 THAT THE SEDIMENT UNDERNEATH IT CAN BE 3. DIVERSION DITCHES WILL BE CLEANED OUT IMMEDIATELY TO REMOVE
SPECIFICATIONS OF ROADWAY STANDARD 1060-14. EXCAVATED. EXCAVATE THE SEDIMENT FROM THE ENTIRE BASIN, NOT JUST AROUND SEDIMENT OR OBSTRUCTIONS FROM THE FLOW AREA. THE DIVERSION RIDGES
THE SKIMMER OR THE FIRST CELL. MAKE SURE VEGETATION GROWING IN THE BOTTOM WILL ALSO BE REPAIRED. SWALES MUST BE TEMPORARILY STABILIZED WITHIN
PROVIDE 5' STEEL POST OF THE SELF-FASTENER ANGLE STEEL TYPE. OF THE BASIN DOES NOT HOLD DOWN THE SKIMMER. 21 CALENDAR DAYS OF CEASE OF ANY PHASE OF ACTIVITY ASSOCIATED WITH A
INSTALL STEEL POSTS WITH NO MORE THAN 3' OF THE POST APPEARING SWALE.
ABOVE THE GROUND. REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE-ANCHOR THE BAFFLES IF WATER 4. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN
1/4 "L" IS FLOWING UNDERNEATH OR AROUND THEM. IT BECOMES HALF FILLED. THE SEDIMENT FENCE WILL BE REPAIRED AS
ATTACH THE COIR FIBER MAT TO THE STEEL POSTS WITH WIRE OR NECESSARY TO MAINTAIN A BARRIER. STAKES MUST BE STEEL. STAKE 14 o 0
OTHER ACCEPTABLE MEANS AND STAPLED INTO THE BOTTOM AND SIDE "=2"W" MIN. RISER IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, SPACING WILL BE 6 FEET MAX. WITH THE USE OF EXTRA STRENGTH FABRIC,
SLOPES OF THE BASIN WITH 12" STAPLES. USUALLY JERKING ON THE ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND WITHOUT WIRE BACKING. STAKE SPACING WILL BE 8 FEET MAX. WHEN N o
DISLODGE THE DEBRIS AND RESTORE FLOW. IF THIS DOES NOT WORK, PULL THE STANDARD STRENGTH FABRIC AND WIRE BACKING ARE USED. IF ROCK FILTERS U N
INSTALL TYPE 2 GEOTEXTILE ON SIDE SLOPES AND BOTTOM OF BASIN AT SKIMMER OVER TO THE SIDE OF THE BASIN AND REMOVE THE DEBRIS. ALSO CHECK ARE DESIGNED AT LOW POINTS IN THE SEDIMENT FENCE, THE ROCK WILL BE Z o
INLET AS SHOWN IN THE DETAIL. THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED; IF SO REMOVE THE REPAIRED OR REPLACED IF IT BECOMES HALF-FULL OF SEDIMENT, NO LONGER
DEBRIS. DRAINS AS DESIGNED OR IS DAMAGED.
USE THE TYPICAL SECTION SHOWN FOR THE BORROW PIT DEWATERING 5. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND P4 � W
BASIN AS A GUIDE. THE BASIN MAY HAVE ANY TYPE CONFIGURATION AS EARTH DIKE IF THE SKIMMER ARM OR BARREL PIPE IS CLOGGED, THE ORIFICE CAN BE REMOVED MULCHED, ACCORDING TO SPECIFICATIONS IN THE VEGETATIVE PLAN, TO W Z
LONG AS SUFFICIENT VOLUME IS PROVIDED AND PROVISIONS ARE MADE AND THE OBSTRUCTION CLEARED WITH A PLUMBER'S SNAKE OR BY-FLUSHING WITH MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER. ALL SLOPES WILL BE O
FOR A NON-PERFORATED RISER. PLAN WATER. BE SURE AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER. STABILIZED WITHIN 21 CALENDAR DAYS. ALL OTHER AREAS WILL BE STABILIZED H w
WITHIN 15 WORKING DAYS. : WATER QUALITY REQUIRES ALL SEEDED AREAS
DO NO EXCEED 3.5 FT. IN HEIGHT FOR THE EARTH DIKES REQUIRED FOR CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED WILL BE FERTILIZED, RESEEDED AS NECESSARY AND MULCHED ACCORDING TO F�
TOP BANK ELEV. BORROW PIT DEWATERING BASIN. REPAIRS WITH FABRIC THAT SPANS THE FULL WIDTH OF THE SPILLWAY. CHECK THE SPECIFICATIONS IN THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE
VARIES FROM 38' TO 30' EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE VEGETATIVE COVER. ALL PERIMETER DIKES, SWALES, HORIZONTAL TO 'DITCHES, H
THE BORROW PIT DEWATERING BASIN SIZE IS VARIABLE AND DEPENDENT EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ALL NECESSARY REPAIRS PERIMETER SLOPES, ALL SLOPES STEEPER THAN 3 VERTICAL (3:1) AND ALL CN
ON SPECIFIC SITE REQUIREMENTS AS WELL AS PROPOSED CONSTRUCTION co IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE SKIMMER AND HIGH QUALITY WATER (HQW) ZONES SHALL BE ' 1 PROVIDED TEMPORARY OR
J� OPERATIONS. -'{ 1.0'f -•-I 1.0f POOL AREAS. PERMANENT STABILIZATION WITH GROUND COVER AS SOON AS PRACTICABLE BUT
J � I I
MINE RECLAMATION 1� -FINAL NORMAL WATER ELEVATION IN ANY EVENT WITHIN SEVEN (7) CALENDAR DAYS FROM THE LAST W
BACKSLOPE 3 SUBMIT THE SIZE, LOCATION AND RISER PIPE MATERIAL FOR APPROVAL 1 1 FREEZING WEATHER CAN RESULT IN ICE FORMING IN THE BASIN. SOME SPECIAL LAND-DISTURBING ACTIVITY. ALL OTHER DISTURBED AREAS SHALL BE PROVIDED r h N
DEPTH PRIOR TO CONSTRUCTION.
AVERAGE
25' 1 1 PRECAUTIONS SHOULD BE TAKEN IN THE WINTER TO PREVENT THE SKIMMER FROM TEMPORARY OR PERMANENT STABILIZATION WITH GROUND COVER AS SOON AS
PUMP THE EFFLUENT INTO THE BORROW PIT DEWATERING BASIN TO A PLUGGING WITH ICE. PRACTICABLE BUT IN ANY EVENT WITHIN FOURTEEN (14) CALENDAR DAYS FROM o? H
1� THE LAST LAND-DISTURBING ACTIVITY. ~ c�
2 MAXIMUM DEPTH OF 6 IN. BELOW TOP OF THE EARTH DIKE. inx UNCLASSIFIED 6. FLOCCULANTS WILL BE USED TO ADDRESS TURBIDITY ISSUES. THE
BOTTOM ELEV. VARIES Q EARTH MATERIAL ANTI-SEEP
L/
M STEEL POSTS COLLAR PUMPS, TANKS, HOSES AND INJECT SYSTEMS WILL BE CHECKED FOR J
PROVIDE A STONE ENERGY DISSIPATER PAD AT THE OUTLET OF THE N ,M
PUMP DISCHARGE HOSE AND OUTLET OF THE RISER BARREL IN PROBLEMS OR TURBID DISCHARGES DAILY. Q U
ACCORDANCE WITH ROADWAY STANDARD DRAWING 876.02 FOR OUTLET VARIABLE Z
MINE SLOPE & RECLAMATION CROSS SECTION W/O DITCH. BCOIR
AFFLEILTER
W cn
NTS TYPICAL SECTION VIEW O o
BAFFLE CONSTRUCTION SPECIFICATION U z
1.NOTES:DEPTH OF MINE WILL BE DICTATED BY SUITABLE MATERIAL. OUTLET ZONE 1. GRADE THE BASIN SO THAT THE BOTTOM IS LEVEL FRONT TO BACK AND SIDE Z
BORROW PIT DEWATERING BASIN DETAIL FIRST CHAMBER SECOND CHAMBER Z
2. AT RECLAMATION ALL BANKS ABOVE NORMAL WATER WILL BE 25% OF SURFACE AREA TO SIDE. N
SLOPED & GRADED AT 4:1 & STABILIZED WITH GRASSING. INLET ZONE 25% OF SURFACE 25% OF SURFACE o a
0
25% OF SURFACE AREA AREA 2. INSTALL POSTS OR SAW HORSES ACROSS THE WIDTH OF THE SEDIMENT TRAP N
AREA (PRACTICE 6.62, SEDIMENT FENCE). z
3. STEEL POSTS SHOULD BE DRIVEN TO A DEPTH OF 24 INCHES, SPACED A
MIN. 20' MAXIMUM OF 4 FEET APART, AND INSTALLED UP THE SIDES OF THE BASIN AS WELL.
THE TOP OF THE FABRIC SHOULD BE 6 INCHES HIGHER THAN THE INVERT OF THE
5' CREST WIDTH SPILLWAY. TOPS OF BAFFLES SHOULD BE 2 INCHES LOWER THAN THE TOP OF THE
EXTEND 9 GAUGE TO BERMS.
COMPACTED SOIL BASIN SIDE OR INSTALL OUTLET STRUCTURE
ROADWAY T-POST TO ANCHOR SEE DETAIL 4. INSTALL AT LEAST THREE ROWS OF BAFFLES BETWEEN THE INLET AND OUTLET
BAFFLE TO SIDE OF DISCHARGE POINT. BASINS LESS THAN 20 FEET IN LENGTH MAY USE 2 BAFFLES.
DRAPE BAFFLE MATERIAL OVER WIRE BASIN AND SECURE TO SD PIPE CONTINUES
- INFLOW TO OUTLET LOCATION 5, WHEN USING POSTS, ADD A SUPPORT WIRE OR ROPE ACROSS THE TOP OF THE
- - - STRAND AND SECURE WITH PLASTIC TIES VERTICAL POSTicence #C-3641
AT POSTS AND ON WIRE EVERY 12" 4' MAX. •-I
STRUCTURE y co y MEASURE TO PREVENT SAGGING.
m m m 6. WRAP POROUS MATERIAL, LIKE JUTE BACKED BY COIR MATERIAL, OVER A 22081
HAUL ROAD SECTION SAWHORSE OR THE TOP WIRE. HAMMER REBAR INTO THE SAWHORSE LEGS FOR
NTS -I VARIABLE DEPTH RIPRAP OR ANCHORING. THE FABRIC SHOULD HAVE FIVE TO TEN PERCENT OPENINGS IN THE DES. JPN
z t;z-- s s
9 GAUGE MIN. HIGH 3' MIN. - s>'>� > = SLOPE DRAIN WEAVE. ATTACH FABRIC TO A ROPE AND A SUPPORT STRUCTURE WITH ZIP TIES,
TENSION WIRE STRAND 3'3 ; 5 �;53f 3 - WIRE, OR STAPLES. CKD. JPN
;:;:>
SHALL BE SECURED - pRyyN, EDB
TO POST TO SUPPORT _ - I- SECURE BOTTOM OF BAFFLE TO 7. THE BOTTOM AND SIDES OF THE FABRIC SHOULD BE ANCHORED IN A TRENCH
BAFFLE MATERIAL u u u GROUND WITH 12" STAPLES AT EARTHEN EMBANKMENT OR PINNED WITH 8-INCH EROSION CONTROL MATTING STAPLES.
BAFFLE MATERIAL 12" MAXIMUM SPACING WITH STABILIZED SIDE SKIMMER SEE DETAIL DATE 12/06/23
SLOPES CONNECT SKIMMER TO 8. DO NOT SPLICE THE FABRIC, BUT USE A CONTINUOUS PIECE ACROSS THE BASIN.
BAFFLE MATERIAL OUTLET ORIFICE. %11 �I r
REMOVE SKIMMER AND MAINTENANCE ��% � C'
RETURN BASIN AND
NOTES: * IF THE TEMPORARY SEDIMENT � �•• ••• ����
OUTLET STRUCTURE TO
1. MINING TO COMMENCE ON AN AS NEEDED BASIS. BASIN WILL BE CONVERTED TO A 11 GAUGE INSPECT BAFFLES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY S �2
STORMWATER DESIGN REQUIRED REPAIRS IMMEDIATELY. 0 �'••2. RECLAMATION IS REQUIRED PRIOR TO MINE CLOSE OUT. PERMANENT STORMWATER BASIN LANDSCAPING � _ •�
3. NO PERMANENT STRUCTURES OR PERMANENT EMPLOYEES ARE PROPOSED ON SITE. OF GREATER DEPTH, THE BAFFLE STAPLE EMERGENCY CONDITIONS ® _ SEAL
4. THE HOURS OF OPERATION WILL BE MONDAY THRU FRIDAY FROM 7:30 AM TO 5:00 PM. HEIGHT SHOULD BE BASED ON _ _ _ SPILLWAY CONSTRUCTION BE SURE TO MAINTAIN ACCESS TO THE BAFFIES. SHOULD THE FABRIC OF A BAFFLE \k � 04 G O
5. BUFFERS SHALL BE NATURAL VEGETATION SUPPLEMENTED WITH PLANTINGS AS THE POOL DEPTH DURING USE AS _ COMPLETION. COLLAPSE, TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
NECESSARY TO MEET REQUIREMENTS. A TEMPORARY SEDIMENT BASIN. WIM,=
6. A 30FT ACCESS EASEMENT SHALL BE PROVIDED FOR ALL MINES TO ALLOW REMOVE SEDIMENT DEPOSITS WHEN IT REACHES HALF FULL TO PROVIDE ADEQUATE v0 * NGIN �•'a���
ACCESS TO NEW BRITTON HWY E ALONG THE EXISTING HAUL ROAD. NOTE: INSTALL THREE (3) COIR FIBER BAFFLES POROUS BAFFLES IN A SEDIMENT BASIN. THE FLOW IS DISTRIBUTED EVENLY STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE �' 6FP""'•• ,f ,
7. MINE OPERATOR SHALL USE A WATER TRUCK TO CONTROL DUST ALONG THE HAUL IN BASINS AT DRAINAGE OUTLETS WITH A ACROSS THE BASIN TO REDUCE FLOW RATES AND TURBULENCE, RESULTING BAFFLES. TAKE CARE TO AVOID DAMAGING THE BAFFLES DURING CLEANOUT. -off ,H'K,5\ %%
ROAD AS NECESSARY. SPACING OF 1/4 THE BASIN LENGTH. TWO (2) IN GREATER SEDIMENT RETENTION. SEDIMENT DEPTH SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH.
COIR FIBER BAFFLES CAN BE INSTALLED IN
THE BASINS LESS THAN 20 FT. IN LENGTH AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED, REMOVE
WITH A SPACING OF 1/3 THE BASIN LENGTH. TYPICAL SKIMMER SEDIMENT BASIN & POROUS BAFFLE DETAIL ALL BAFFLE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS, BRING THE AREA TO
GRADE, AND STABILIZE IT.
FIGURE 6.65b COIR FIBER BAFFLE DETAIL NTS
CROSS SECTION OF A POROUS BAFFLE IN NOTE. SEE PLAN FOR BAFFLE LOCATIONS. C5
A SEDIMENT BASIN.