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NCG021020_Site Plans_20230803
RED ROCK MINE MIN P RMIT CARLOS ROAD CUMBERLAND COUNTY , NORTH CAROLINA SITE 0 LOCATION MAP SITE DEVELOPER/OWNER SHEET INDEX Z 0 SCALE: NTS RED ROCK MATERIALS LLC 2204 BAYVIEW DR C1 COVER SHEET FAYETTEVILLE, NC 28305 CONTACT: BRIAN RAYNOR C2 SITE LAYOUT PLAN PHONE: (910) 824-1238 M N O N O N N C3 DRAINAGE AREA MAP i C4 MINE MAP JULY 2023 a m C5 RECLAMATION PLAN 0 i U C6 EROSION CONTROL NOTES RAFTING AND DESIGN C7-10 EROSION CONTROL DETAILS SERVICES, INC. 0 N N C11 CALCULATIONS a c 6728 Carbonton Road Sanford, North Carolina 27330 (919) 499-8759 phone draftinganddesignCymail.com AGENCY REVIEW ONLY NOT FOR CONSTRUCTION N V N N O N N project no. 2022-42 ss ai GENERAL NOTES: SITE DATA TABLE 1. EXISTING TOPO IS STATE LIDAR FROM CUMBERLAND COUNTY GIS DATA. RAFTING AND DESIGN O OWNER: RED ROCK MATERIALS LLC 2. BOUNDARY PER CUMBERLAND COUNTY GIS. 2204 BAYVIEW DR 3. SITE TO BE RECLAIMED TO MEET CUMBERLAND COUNTY SECTION 919 QUARRY AND THE NCDEQ FAYETTEVILLE, NC 28305 SERVICES, INC. MINE PERMIT RECLAMATION BOND REQUIREMENTS.SEE PHASED RECLAMATION PLANS. REID:0573003160000 4. AS PART OF THE NCDEQ MINE PERMIT THE OWNER IS REQUIRED TO BOND THE RECLAMATION OF THE TOTAL PROJECT BASED ON THE STATE MINING PROGRAM REQUIRED AMOUNTS. 6728 Carbonton Road PARCEL ID: 102834 5. THE TEMPORARY ERECTION AND OPERATION OF PLANTS AND EQUIPMENT SHALL COMPLY WITH THE DISTRICT DIMENSIONAL REQUIREMENTS OF THE M(P)ZONING DISTRICT. Sanford, North Carolina 27330 PORTION OF DEED BOOK: 11468 6. DUST SUPPRESSION ON ACCESS ROADS AND PLANT SITE SHALL MEET THE STANDARDS SET FORTH (919) 499-8759 phone PAGE#:0355 IN THE NCDEQ MINE PERMIT AND SECTION 919 QUARRY OF THE CUMBERLAND COUNTY ZONING draftinganddesign@ymail.com ORDINANCE. TOTAL PARCEL AREA:61.74 AC+/- 7. A PROPOSED 50 FT MINIMUM UNDISTURBED BUFFER WITH AN ADDITIONAL 50 FT WIDE x 6.25 FT HIGH VEGETATED BERM FOR A TOTAL OF 100 FT MIN BUFFER WILL BE MAINTAINED BETWEEN THE EXISTING ZONING:AGRICULTURE 1 (Al) EXCAVATION AND ADJOINING PROPERTY BOUNDARY. PROPOSED ZONING:AGRICULTURE 1 CONDITIONAL USE(Al-CZ) 8. THE PARCEL FRONTAGE ON CARLOS ROAD IS COMPRISED OF OPEN FIELD AND MIXED PINE AND HARD WOOD ADJACENT TO RIGHT OF WAY.ANY EXISTING VEGETATION THAT MEETS THE CONDITIONAL ZONING AREA:61.74 AC+/- REQUIREMENTS OF SECTION 1102N SHALL BE LEFT IN PLACE AND ALL AREAS THAT DO NOT MEET THE REQUIREMENT SHALL BE PLANTED IN ACCORDANCE WITH THE ZONING ORDINANCE AS SHOWN PROPOSED USE: BORROW PIT(SAND&GRAVEL) BEAR PARK LLC ON PLAN. REID:0573025008000 9. ALL EQUIPMENT USED FOR EXCAVATION,QUARRYING AND PERMITTED PROCESSING SHALL BE BUILDING SETBACKS -M(P) ZONED:Al CONSTRUCTED,MAINTAINED AND OPERATED IN SUCH A MANNER AS TO ELIMINATE,AS FAR AS FRONT: 100 FT PRACTICABLE,NOISE,VIBRATION,OR DUST WHICH WOULD INJURE OR ANNOY PERSONS LIVING OR SIDE:50 FT WORKING IN THE VICINITY. REAR:50 FT MCLEOD,GENE D 10. ACCESS WAYS OR DRIVEWAYS WITH THE PREMISES SHALL BE MAINTAINED IN A DUST-FREE � HEIGHT:35 FT(FOR EVERY 1 FT ABOVE 35 FT REAR AND SIDE REID:0573011413000 CONDITION THROUGH SURFACING OR WATERING DOWN THROUGH OUT OPERATION HOURS. SETACKS INCREASE BY 1 FT) SCHUCHMAN,WILLIAM F; ZONED:RR PROPOSED XISTING TREE LINE P) 11. NO EXCAVATION SHALL BE MADE CLOSER THAN 200 FEET FROM THE BANKS OF ANY RIVER,STREAM, SCHUCHMAN,HELEN CREEK,WATERWAY EXCEPT BY SUBMISSION OF DOCUMENTATION,VERIFIED BY THE COUNTY REID:0563917410000 PARKING CALCULATIONS ZONED:RR ENGINEER,THAT SUCH EXCAVATION OR QUARRYING SHALL NOT IMPAIR THE LATERAL SUPPORT THOMPSON,CRAIG BARBER,WILLIAM TERRY NEEDED FOR PERMANENT STREAM LEVEES. REQUIRED: REID:0563914311000 REID:0563919334000 y y RED ROCK MATERIALS LLC 12. ALL EXCAVATIONS SHALL BE A MINIMUM OF 5 FEET AND GRADED TO RETAIN WATER FED BY GROUND ZONED:RR ZONED:RR / REID:0573003160000 WATER/SPRINGS OR GRADED TO DRAIN. 1 SPACE/PER EMPLOYEE X 10 EMPLOYEES: 10 SPACES ZONED:Al-CZ p0 13. A 50'MINIMUM UNDISTURBED/PLANTED BUFFER IS PROVIDED AROUND THE PERIMETER OF THE SITE. 14. PROPOSED/EXISTING TREE LINE IS THE BOUNDARY OF CLEARING/EXISTING TREE LINE LOCATION TO PROPOSED: MINTON,DENVER D SITE ENTRANCE REID 0563918271000 W/CONCRETE APRON REMAIN FROM THIS SAID LINE TO THE PROPERTY BOUNDARY.THIS AREA IS TO REMAIN : 10 SPACES (INCLD H.C.) ZONED:RR y y y y y y y y AND GATE UNDISTURBED. THOMPSON,CRAIG ID:056 R151 A Mi / 15. ONCE EXTRACTION HAS BEEN COMPLETED,SUCH AREAS SHALL EITHER BE LEFT AS A PERMANENT STREETSCAPE CALCULATIONS REID:ONED:0180000 REIDZONED1 RR5000 RF/NT0N o Z s N� Q' Q 50'VEGETATIVE BERM(TYP) SPRING-FED LAKE,OR THE FLOOR THEREOF SHALL BE LEVEL IN SUCH A MANNER AS TO PREVENT ZONED:RR 2 gs 39F F x � RMrNTQ QNFo 1g�2jo = • H=6.25 FT THE COLLECTION AND STAGNATION OF WATER AND TO PROVIDE PROPER DRAINAGE WITHOUT REQUIRED: Fio. N o RR/ 00�J y , x xQ SIDE SLOPES=4:1 EXCESSIVE SOIL EROSION. V 20S63g, Q x 50'VEGETATIVE BUFFER(TYP) M/ NFo X0, 01 16. ALL EQUIPMENT AND STRUCTURES SHALL BE REMOVED WITH THREE MONTHS OF THE COMPLETION 1 TREE PER 50 FT FRONTAGE X 989 FT=20 TREES R NrQN R / x x x I I OF THE EXTRACTION OF MATERIALS. PROPOSED: 17+EXISTING TREES&VEGETATION(WEST SIDE) THOMPSON,CRAIG ZQNFO 68 00 l I I I xQQ OOC, SCREENING BARRIER 17. THE FACILITY MUST BE PERMITTED BY THE NORTH CAROLINA DEPARMENT OF ENVIRONMENTAL AND REID.0563903989000 R g I I I I I x O "9 ADDITIONAL PLANTINGS ON 25 FT CENTERS NATURAL RESOURCES AND/OR OTHER APPLICABLE FEDERAL,STATE,AND LOCAL AGENCIES. ZONED:RR A A Q x I I I I I A O �� 18. OUTSIDE LIGHTING(TEMPORARY OR PERMANENT)SHALL BE SHIELDED,AIMED DOWN AND IN STREET YARD PLANTINGS BEAR PARK LLC COMPLIANCE WITH SECTION 1102 M. Q / ( I I I I I I I I I 4� �(1 _, / ®% r M ZONING REQUIREMENT PIN:0573-21-9395 SCHUCHMAN, ILLIAM F; ,Ox x I I I I • 1 Q O Q,' 1 LARGE TREE PER 50 FT STREET FRONTAGE ZONED:Al-CZ THOMPSON,CRAIG SCHUCIMAA,HELEN O" _ x I I I I I O C ��-o x I I I I I REID:0563900851000 REID:08894000 �o � 04PERMITIBOUNDARY TYPZONED:RR ZORR a .O O (TYP) x O: 61.74AC+/- BUFFER KEY: ROSAS-JIMENEZ,MYRIAM V=o°®P q x X x PLANT SITE/ I X '� 50'AREA TO BE BACKFILLED(TYP) J m��p QA X UBBARD,DIANNE MARIE. PER SECTION 919-H REQUIREMENT REID:0563902796000 "`� FUTURE PIT x x O REID:0573008726000 O ( „ 150 TO BE BACKFILLED FROM R/W ZONED:RR t�, ^, I I " C?' O ZONED:Al ONNER,STEPHANIELEE / mP�� / �Q X I 2.1 AC 50'VEGETATIVE BUFFER(TYP) A (NORTH) BUFFER RANGE: 50 FT - 100 FT -AVERAGE 50 FT t� I I I I I ;� LA O Q CONNER,PAUL LEROY ®x O Q 50'VEGETATIVE BERM(TYP) Q o I I I I I , , O o REID:ONED:0605000 �Ox x H=6.25 FT O,�o AI I I I I I I I x x O OQ-^off ZONED:RR RAYNOR,LARRY C RISTOPHE x x x I I I x �' ,� O O .,'® 0 SIDE SLOPES=4:1 OR,REI LA RYC 558000 x x Ix i i Ix x ° o° x x°' B (WEST) BUFFER RANGE: 154 FT - 308 FT - AVERAGE 231 FT V W = O0Oo'O�� GORDON,RICHARD MARTIN; ZONED/RI$ y p x I x d® O x O AFFECTED AREA(TYP) \l�O A GORDON,FIDELIS / I x x x© 0 38.7 AC �Q- 2 O o° REID:0563902513000 / y y y A (� x x " " "® OP°°° ZONED:RR , x x x®® 0 L� (SOUTH) BUFFER RANGE: 185 FT - 420 FT - AVERAGE 302 FT Z z IME �0��°�Q y y y A � aso Q'" �M O o CONNER,STEPHANIE LEE; / p x x x x x x�x , Q Q 2P� U CONNER,PAUL LEROY x x gQ�Q Q �o REID:05638094 T : 8 34000 A A � � x 2 F - ZONED:RR HARPER,BRENDAN; I x ' x x® O - - 75 xJ Q O HARPER,CAROL PROPOSED MINING AREAS SCREENING BARRIER REID:0563901347000 CROSS,SADIE L O x ® SECTION 919 QUARRYING REQUIREMENT O ZONED:RR REID:0563903394000 I(',` x " 'p 6'BERM WITH DOUBLE ROW EVERGREENS ZONED:RR STAGGERED TWO ROWS W/25 FT SPACING �► E LEMULLINS,JENNIFER; W PmPIT 27.8 AC OCONNER,PAUL EIROYE /0 x aWALLAR,WESLEY cc IIII," O REID:0563808273000 HARPER,BRENDAN; y y y y J �/ REID: ONED:4214000 ZONED:RR HARPER,CAROL xa, ZNED:A1 O O Z 1� REID:056390026000 DICKENS,DICKENS,KAR IA C; x x PLANT SITE/FUTURE PIT 3.1 AC ��o ZONED:RR D:0563KARYV y y y /px x C Wmi O oo\ 0' REID:0563902197000� x 24 ' J' �^yti o�. 0�-� ZONED:RR O W �7-o,, yo ���0, �.�,r I x "�`'� HUBBARD,DIANNE MARIE UNDISTURBED BUFFER 21.2AC 5 �° �r o� / / REID.0573102170000 L I I x 9®� ZONED:Al 2��0 moo? v°oo�� r��v�o°�� m���o°o I I I' x x 27. A x O y y 1 W J� �I y y OTHER MISC. AREA 9.6 AC ��a tio� � °�o�� OAP �oP=��o �� I sax x . 0, (n '�O' V �..goryO �4�b I,I II x ' Q O h 14 C5"Q ��o r y y ®x y y y (BERMS, TEMP. DIVERSIONS,ETC.) eo �� �� o O� m �� � o z O V Q"Q"o�O' O rn° Z Q� 4-Q�oh�� ���000 I xp x x / A y � °TOTAL PROJECT AREA 61.7 AC P�P�°"o ��°��ss� o ® x / W \ - m REQUIRED PLANTINGS \ KEY SPECIES COMMON NAME PLANTING MATURE TOTAL 50'MIN UNDISTURBED VEGETATIVE BUFFER x HEIGHT HEIGHT (TYP) Q x x / WETLANDS(TYP) RM LARGE TREE RED MAPLE/PIN OAK 6 FT 8-19 FT 20 AS REQ. \ p x x p PER WETLANDS NATIONAL INVENTORY VEGETATIVE BERMTYP LC LARGE TREE LEYLAND CYPRUS 4 FT 60-100 FT 537 x x x Q'/ so' LAKE TERESA HOMEOWNERS ASSOCIATION IN ©x x x (TYP) REID:0562884912000 x x x x x ' H=6.25 FT ZONED:RR �;x x x ?x� x x x fQ �/ / SIDE SLOPES=4:1 �0 o0 Q ti x x �. D 9 A 6 50'VEGETATIVE BERM(TYP) I x x x x x x x O x x x® x / \ \0 °O� H=6.25 FT y y x x x x x x x x x x x x Q/ ` x x x x x / y y 30'UNDISTURBED WETLAND BUFFER(TYP) SIDE SLOPES=4:1 ` - ®.Cy©' O x x Q El LEGEND 30'UNDISTURBED WETLAND BUFFER(TYP) 50'VEGETATIVE BERM(TYP) \ / 50'MIN UNDISTURBED VEGETATIVE BUFFER S � H=6.�5 FT (TYP) -� ° REVISIONS CONDITIONAL USE sIDESLOPEs=4a / 30'UNDISTURBED WETLAND BUFFER(TYP) ROPOSE /EXISTING TREE�INE(JYP) / ��,`y 0° �,`POo O��OF o. PERMIT BOUNDARY J y All- WETLAND / °a°yo`�� �P`��F`$o° + + \ INE MATERIAL + -I- / ti � STORAGE AREA + ++ + + + + ULTIMATE PIT A � °P� °�°� + + I C / \ I o W + + SCALE + 20'WIDE VEGETATED BERM(TYP) "s zaaz'/.z'/.z izz y y y y y y + + + + + + + + + BUFFER _ + + + + + + co + + I z PLANT SITE � + ° + + - °- AFFECTED AREA �o + + oo o'l o + SCALE HOUSE/OFFICE CREEK ADDIEE TIONAL FOR LOCATION - + + 6.0' 24.0' - C.SIGN ILL Z L,�J _ + ANDICAP RAMP(TYP) BERM + + + } DOUBLE ROW PLANTINGS MCLAMB,JERRY DON _ ��� / + + + + TURN DOWN SIDEWALK(TYP) SEE PLAN FOR LOCATION REID:0562879601000 + + a ZONED:Al POPE,AUDRA SIMMONS + + [ ILL REID:0572079140000 + + ) U p/ ZONED:Al + + + + + +.04 INSTALLATION 1. REMOVE ALL + 0 + + + + + + + ' + + + + + + + +TREES,BRUSH I + + + + + + + EXISTING GROUND B`-F<`1 + + + + + + + + + + + PIT + + + + AGENCY REVIEW ONLY NOT FOR CONSTRUCTION z c NOTE I 1. SEE PLAN THIS SHEET FOR WIDTH 50'WIDE}JEGET&TED BERM(TYPO HEIGHT DETERMINED BY SIDE SLOPES. II 2. WIDTH INDICATED ON PLAN IS BOTTOM ITE GATE(TYP) WIDTH. I_ Scale: Drawn by: s 3. SEED PER TEMPORARY/PERMANENT MTB SEEDING SCHEDULE PER DEMLR. I 1"=150' ( 4. NATURAL VOLUNTEER VEGETATION Sheet: Designed by: ° SHALL REMAIN.(TREES,GRASS, ETC.) CARLOS ROAD VEGETATIVE SEDER(TYP) MTB 5. BERM ENDS SHALL BE 4:1 SLOPES LIKE SIDE SLOPES. c 6. BERM SHALL BE 6.0 FT MAX HEIGHT. 100'CONCRETE ENTRANCE APRON(TYP) Reviewed by: C, 150 0 150 300 150 C2 of 11 MTB VEGETATIVE BERM (TYP) INSET "All Project Number: Date: NTS TYPICAL SITE ENTRANCE & SCALE HOUSE/OFFICE W/PARKING DDS JOB#: 2022-42 JULY 2023 Scale: 1" = 150' SCALE: 1"=80' RAFTING AND DESIGN O SERVICES, INC. �\ I 6728 Carbonton Road / Sanford, North Carolina 27330 �\ / / / / \ / / � / � / / / / / / / / � � / (919) 499-8759 phone draftinganddesignCymail.com // \ / i 1 / \ / xQ ♦ / x "'` ♦ \ / / x r:, 1♦ x/ x x Q ♦ 0.40 AC / x 0 /♦♦ ♦ / �, xxx x ® : O� ~, ♦ \ / / 1 < / x x x i I /x x x / xx x x� �o o � < � � � � x xo . / ♦ �' � �xxxxx \ xx � xx I xxx ° / o° x' °� � � / / L / / xx \ xx xa 6o Q xQ ♦ \ / / / O xx � x / xxxx x> xx xxx0 o x ' x JI �x x x/ x 1, „ x x \ 1 / \ / � / xxx / , / / W = x xx / / xx �" aO Q /x / 16.1AC i 1 xx / \1 \ O Z W 1 x �1 oc / 42.3 AC x 4. / \ _ _ _ / 1 Q x x / z LU DA #02 Q 19.7 AC x / — \ / / Z Q O Z / / / � \ / \ / LV t� Q 1 x xn \ \ I x / x i / x xxx xxx �/ � � �� / b x x x // REVISIONS i / , / I x1► Q Q x xxx �/� / / I x X r x x x x x x ��^ 1 / r � x x x x x x x x xQ � UQ �x x xQ� ' �x® x xQ �x x x x x x x x XJ r _ \ U c AGENCY REVIEW ONLY NOT FOR CONSTRUCTION � � � �— � _ �_�� � / / / \ ✓� / Scale: Drawn by: z MTB 0 l \ / / / / Sheet: Designed by: z MTB p � C Reviewed by: 300 0 300 600 900 C3 MENof 11 MTB c c c Project Number: Date: Scale: 1" = 300' 2022-423 J U LY 2023 CONSTRUCTION SEQUENCE MINING ACTIVITY PHASE 1 NOTES: 1. PRIOR TO COMMENCEMENT OF CONSTRUCTION ACTIVITIES CONTACT NCDEQ LAND QUALITY SECTION(910)433-3300. RAFTING AND DESIGN O 2. INSTALL CONSTRUCTION ENTRANCE ON CARLOS ROAD. / _ 1. TYPICAL MAX EXCAVATION AREA IS THE TYPICAL MAX AREA BEING MINED AT ONE TIME. RECLAMATION WILL BE A 3. INSTALL SILT FENCE ALONG ACCESS ROAD PER PLAN. ' \� / / / �// / / / PART OF THE MINING ACTIVITIES IN THIS AREA.WASTE(OVERBURDEN)MATERIAL WILL BE PLACED BACK IN THE SERVICES, INC. 4. INSTALL SILT FENCE BELOW ALL DISTURBED AREAS WITH SILT FENCE OUTLETS PER PLAN. /� J / / / / / EXCAVATION PER SECTION 904 QUARRY WHICH IS SHOWN IN THE RECLAMATION PLAN FOR EACH PHASE. 5. INSTALL SEDIMENT BASINS.STABILIZE AND SEED ALL SLOPES IMMEDIATELY.ONLY CLEAR AS NECESSARY TO INSTALL BASINS. MAINTAIN / / 2. PROPOSED PERMANENT BERM SHALL BE CONSTRUCTED TO ENCOMPASS EXCAVATION AREA THROUGHOUT SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL GOOD GROUND COVER IS ESTABLISHED. - / /� /� y�/ / / /� / / EACH STAGE. 672$ CarbOntOn Road 6. INSTALL TEMPORARY DIVERSIONS.STABILIZE AND SEED ALL SLOPES IMMEDIATELY.ONLY CLEAR AS NECESSARY TO INSTALL / / / 3. ACCESS WAYS OR DRIVEWAYS WITH THE PREMISES SHALL BE MAINTAINED IN A DUST-FREE CONDITION DIVERSIONS.MAINTAIN SILT FENCE AND SILT FENCE OUTLETS DOWN STREAM UNTIL TEMPORARY/PERMANENT LINING,AND GOOD / / / / / THROUGH SURFACING OR WATERING DOWN THROUGH OUT OPERATION HOURS. Sanford, North Carolina 27330 GROUND COVER ON FILL SLOPES IS ESTABLISHED. //� /// /� / 4. DOUBLE ROW OF SILT FENCE TO BE INSTALLED ALONG ALL WETLANDS AS SHOWN ON THIS SHEET. (919) 499-8759 Phone 7. INSTALL SILT FENCE PER PLAN BELOW ALL PERMANENT/TEMPORARY DIVERSIONS AND BASIN/TRAPS W/SILT FENCE OUTLETS IN LOW �/ /� \� / / / draftinganddesign@ymail.com AREAS PER PLAN. 8. INSTALL PLANT SITE W/BERMS AND BEGIN REMOVAL OF OVERBURDEN FROM PIT. / / / fLET 0ROT1`CTION'#1 / / PIT WATER PUMPING OPERATION & MAINTENANCE PLAN 9. INSTALL PERMANENT BERMS AROUND PIT WITH PLANTINGS PER SHEET C2. La=5.0' / 10. ONCE BERMS ARE COMPLETE AROUND PLANT SITE AND EXCAVATION AREA AND ARE STABILIZED AND SEEDED.MAINTAIN SILT FENCE / / /� `\ / W=4.0'MATCH EX. DITCH / STONE 0=CLASS A'RIP RAP PUMPING SEQUENCE: UNTIL THIS ACHIEVED. REMOVE TEMPORARY DIVERSIONS AND TEMPORARY SKIMMER BASINS ONCE POSITIVE DRAINAGE IS ACHIEVED d=12" TO THE PIT. MAINTAIN ALL DOWNSTREAM DIVERSIONS AND SILT FENCE UNTIL GOOD GROUND COVER IS ESTABLISHED. / / / J` 11. ONCE GOOD GROUND COVER IS ESTABLISHED AND NO RUTTING OF SLOPES IS OCCURRING REMOVE ALL EROSION CONTROL MEASURES C CULVERT#9 1. ALL EXCAVATED MATERIAL IS BEING REMOVED IN APPROX.3-4 ACRE SECTIONS WITHIN THE WHILE MAINTAINING SILT FENCE ON DOWNSTREAM SIDE. / / / / / /�' \ \ 65 LF 18"RCP @ 0.5%MIN OVERALL MINE EXCAVATION FOOTPRINT. 12. MAINTAIN SILT FENCE AFTER MAJOR RAIN EVENTS.T . ONCE THE WATER TABLE IS ENCOUNTERED,PUMPING OF WATER WITHIN THE MINE SECTION 13. MAIN ALL SEDIMENT BASINS AND SEDIMENT TRAPS WITH SILT BAG PER DETAIL. / / / / \ \ MATCH EX.DITCH SLOPE 2 BEGINS AND IS SEPARATED FROM THE REMAINDER OF THE EXCAVATED POND AREAS BY / COFFER DAMS OR UNMINED SECTIONS TO ENSURE THEY REMAIN FILLED WITH WATER. 14. STABILIZE AND SEED ALL DENUDED AREAS IN WHICH WORK WILL NOT RECOMMENCE WITHIN 7 WORKING DAYS OR 14 CALENDAR DAYS. /� J X x X X X 30X100 TEMPORARY 15. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION(910)433 3300. / x x x x x x X / CONSTRUCTION ENTRANCE 3. NO PIT WATER IS DISCHARGED FROM THE SITE DURING EXCAVATION AND WASHING OF MATERIAL.ALL WATER RUNS TO SEDIMENT BASIN FOR TSS REMOVAL BEFORE DISCHARGING. 2 J x X X x X x / 4. PUMP DOWN ACTIVITIES HAVE BEEN AND WILL BE CONDUCTED USING AN EIGHT(8)INCH PHASE 2 x x x x x x x PUMP RATED AT 2,700 GALLONS PER MINUTE. PUMPING OF EACH SECTION TAKES APPROX. 1. BEGIN MINING ACTIVITIES. / x x x x x x 3-4 DAYS TO DROP THE WATER LEVEL 10 FEET TO ALLOW ADDITIONAL MATERIAL REMOVAL 2. AS EXCAVATION AREA IS EXPANDED POSITIVE DRAINAGE TO BE MAINTAINED TO EXCAVATION PIT. / / EXISTING-DWELLING x x x FOR NO MORE THAN 2 WEEKS.ONCE MATERIAL IS MINED WITHIN THIS SECTION OF THE 3. CONTRACTOR/MINE OPERATOR TO BEGIN EXCAVATION AT SOUTHERN MOST AREA OF PIT AND MOVE NORTH. 500'+/-FROM PIT x x x x x x X x X OVERALL MINE EXCAVATION FOOTPRINT,THE PUMP IS REMOVED AND THIS SECTION OF THE 4. TEMPORARY SEED STOCKPILE AREAS THAT WILL BE DENUDED FOR 30 DAYS OR MORE. / - / x x x x x PIT WILL BE ALLOWED TO REFILL UNTIL THE NEXT PUMP DOWN CYCLE. 5. MAINTAIN ALL EROSION CONTROL DEVICES WEEKLY AND AFTER MAJOR STORM EVENTS. / X X x x x 5. PUMPED WATER WILL RUN THROUGH SEDIMENT BASIN FOR TSS REMOVAL,WHICH WILL 6. CALL NCDEQ LAND QUALITY SECTION FOR INSPECTION(910)433 3300. / / / �/ x x x x x x x------- 9�� EVENTUALLY DISCHARGE OUT OF CULVERT#2 AT DISCHARGE POINT#1. X X X x/X X /X X O X=X / X X�X/X X X � O DISTURBED AREAS / x X x X x bx X '9Q EXISTING DWELLING X x X X X ,X 226'+/-FROM PIT TAILINGS/SEDIMENT PONDS 1.4 AC ' X x x x� x x x x x / XXX PLANT SITE/ X x'X X X X PERMIT/PROPERTY BOUNDARY(TYP) \� �� x x x FUTURE PIT x x/x x X x 61.74AC+/- STOCKPILES 1.1 AC I I x x x x x x x x x z \ J x x x X !x x x x x x x x 2.1 AC x x x x x x AFFECTED AREA(TYP) PROCESSING AREA/HAUL ROADS 3.1 AC x x x BERM BREAK x x x x x x x 40.4AC+I- I I / x x x x x x x x x x x x x x x x x x x" 1 9� ��/ XXX X x x X X x X X x x x (TYP) MINE EXCAVATION 27.8 AC // x x x x x x x x x x x x x x x X x X SILT FENCE TYP x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x ' x x x x x FUTURE PIT 3.1AC z� / ��� �/� xxx Xx x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x ry_ - - x x x x - x x x x x x x OTHER MISC EXCAVATION 9.6 AC _ _ xx xxx �`� xXxx xxx xxxx � l 0 l r / J� J� J� J� J� / x x x x \ x x x x x x x x X (BERMS, DIVERSIONS, ETC.) I x x X x x X x Xv xxx xx xx,X a TOTAL AFFECTED AREA 40.5 AC X x x x xxx X x TD 01 � x x X", x x x x x x INTERNAL DRAINAGE = 34.5 AC / �I x x x \ \ r x x x x ~ / W / \ EXTERNAL DRAINAGE= 6.0 AC /�� / I x x / o x x x X \ 1 xx / � xxx 0 EXISTING DWELLING x x x / x x X / xxx � � ao / �13'�-FROM PITS �/ � � � / x x II \ xxx / x x `I I. / x x x / O Z x VVV"' x x x x / LLI 5 x x x x X PER NATIONAL WETLANDS INV� TORY > G DOUBLE ROW SILT FENCE x X X II \ XXX /- � cc ALONG ALL WETLANDS(TYP) / I x X // \ xxx o w xx (((yyy ULTIMATE PIT xxxxx / /`� �� - � W J Z Z J f I xxx 27.8AC xxxxx �, I x x X x X xxll / 1 / xxx / ? Qo xx ' ' J / � � xxxx ! I xxxll / � � xxx W \ I I x x x x x / / z x x // \ / / / x x x X _NJ J \ \ \ I x X J \ x x x x x ,\ �' / / I / / ` \ \ TD 02 X X X X \\ \\ I X X / f ( x x x / xxx _ '\ \ xxxx W xX �� xxx X x x X X xx f �\ \ XXx / x x SB#1 I x x X x x - - - - x x i x x x x x EROSION CONTROL LEGEND \ 1�1 1 x X - - = = -_ � �� x x x X � � � � _NJ J� I x x \ xx �� xXx / �� �� xxx x x X ���� x x x y TOP OF BERM X x III IIIIIIII II x x x x x i / x x I X X X x X X X X x X x x X DOUBLE ROW SILT FENCE SEDIMENT BASIN / I x X llllllll IIIJ� II x x x x x x x x x x x x X x x x /� ALONG ALL WETLANDS(TYP) WIER BAFFLES I 1 I x x ���� - - - - - -_�/ x X x X X x x x x x x Q�` /�//x x x x x /�� _ x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x ROCK CHECK DAMS I x x x x x x x x x x x x x x x x X x x x x x x xxx - IX 2S x x X X x X x x x x x CULVERT#2 REVISIONS _ x x x x x / �// // // // 2:1 MAX SIDE SLOPES(TYP) - X �50 LF42"HDPE @-0.5% MIN / / / / SILT FENCE SF �- ' wv IN/OUT= 106.25/ 06.0 II NPDES DISCHARGE P91NT#_1 N:529351.5315 TEMPORARY DIVERSION DITCH �� E:2070172.6252 OUTLET P�tOTE4CTION�k#2 ��/ /////////// 1 / 035.204 j/ �// LAT:N l La=28.0' LONG0078.7653 W=10.5' OUTLET PROTECTION �i �� % // j/ STONE 0=CLA�1 RIP RA� s d=18" o J-HOOK W/SILT FENCE OUTLET SILT FENCE OUTLET / /� z ® f / \ / /I SILTFENCE(TYP) 0`c 1 f � SF SF SF SF SF SF l�l 2 FT SAFETY BERM(TYP) c 0 c r c PROPOSED BASIN TABLE TOPSOIL STOCKPILE(TYP) AGENCY REVIEW ONLY BASIN ID TOP WEIR BOTTOM POOL TOP BOTTOM VOLUME VOLUME WEIR WEIR WIER RISER BARREL RISER SKIMMER SKIMMER BAFFLES � NOT FOR CONSTRUCTION Ic DIM DIM DIM DEPTH EL. EL. REQUIRED PROPOSED LENGTH DEPTH LINING SIZE SIZE BASE ORIFICE SIZE i SB#1 163x326 157x314 142X284 5 107.0 100.0 76,086 CF 224,065 SF NA NA NA NA NA NA NA NA NA E C SB-SEDIMENT BASIN NOTES: is :]S is is is is Scale: Drawn by: z SK-SKIMMER BASIN MTB STABILIZE AND SEED ALL SLOPES IMMEDIATELY STABLIZE AND SEED ALL SLOPES PER NCDEQ STANDARDS 1"=100' EMERGENCY SPILLWAY TO BE CONSTRUCTED IN CUT ONLY FOR TIME FRAMES FOR DENUDED SLOPES Sheet: Designed by: ° SEE DETAIL CROSS-SECTION FOR ELEVATIONS MTB INSTALL SILT FENCE PER SILT FENCE DETAIL PROPOSED DIVERSION TABLE Reviewed by: 150 0 150 300 450 MEN CHANNEL ID CHANNEL SLOPE SIDE SLOPES CHANNEL DEPTH BOTTOM WIDTH TEMPORARY LINING PERMANENT LINING LINING DEPTH C4 of 11 MTB C, c STOCKPILE AREA (TYP) TD01 0.0 /0 3:1 3.5 FT 3.5 NAG S150BN BERMUDAGRASS I c TD02 0.0% 3:1 3.5 FT 3.5 NAG S150BN BERMUDAGRASS - Project Number: Date: Scale: 1" = 150' DDS JOB#: 2022-42 3 INSTALL CHECK DAMS IN CHANNELS WITH STRAW W/NETTING NTS JULY 2023 Ll CONSTRUCTION SEQUENCE RECLAMATION ACTIVITY NOTES: � / / I ) \ � - � � � � RAFTING AND DESIGN 1. CONTRACTOR/MINE OPERATOR TO BEGIN EXCAVATION AT SOUTHERN MOST AREA OF PIT AND MOVE NORTH. PER PHASE 2 OF MINE PLAN 1. EXISTING TOPO IS STATE LIDAR FROM CUMBERLAND COUNTY GIs DATA. / /// / / / /� / / CONSTRUCTION SEQUENCE. O 2. SITE TO BE RECLAIMED TO MEET CUMBERLAND COUNTY SECTION 919 QUARRY AND THE NCDEQ MINE PERMIT � // � �� / � /j � / / 2. AS THE MATERIAL IS EXCAVATED ALL FINAL LAKE BANKS(SLOPES)SHALL BE RECLAMATED BY BACKFILLING THEM WITH MIN 6 INCHES OF SERVICES, INC. RECLAMATION BOND REQUIREMENTS. / �j � / / / TOPSOIL AND STABILIZED AND SEEDED. 4. AS PART OF THE NCDEQ MINE PERMIT THE OWNER IS REQUIRED TO BOND THE RECLAMATION OF THE TOTAL / / 3. RECLAMATION SHALL BE COMPLETED THROUGHOUT THE MINING PROCESS DUE TO THE FINAL PIT WILL BE A LAKE. / // / \ // / 4. ALL SLOPES AND BACKFILL SHALL BE PLACED AT NO MORE THAN 2:1 SLOPES. 6728 Carbonton Road PROJECT BASED ON THE STATE MINING PROGRAM REQUIRED AMOUNTS. � �j / � \ / / / / 5. ONCE EXTRACTION HAS BEEN COMPLETED,SUCH AREAS SHALL EITHER BE LEFT AS A PERMANENT SPRING-FED LAKE,OR THE FLOOR Sanford, North Carolina 27330 THEREOF SHALL BE LEVEL IN SUCH A MANNER AS TO PREVENT THE COLLECTION AND STAGNATION OF WATER AND TO PROVIDE PROPER (919) 499-8759 phone / DRAINAGE WITHOUT EXCESSIVE SOIL EROSION. draftinganddesign@ mail.Com 6. 6 INCH MINIMUM TOPSOIL SHALL BE BACKFILLED TO ALL SLOPES AND EXCAVATED AREAS THAT ARE NOT COVERED BY THE PIT WATER / TO PROVIDE A GOOD SEED BED FOR VEGETATION. 7. ALL EQUIPMENT AND STRUCTURES SHALL BE REMOVED WITH THREE MONTHS OF THE COMPLETION OF THE EXTRACTION OF MATERIALS. 8. OVERBURDEN SPOILS THAT ARE NOT USED IN PIT WALL RECLAMATION SHALL BE GRADED TO LEVEL SUITING THE EXISTING GROUND / />j, ADJACENT TO THE MATERIAL. PROPOSED MINING AREAS ' / , - - - J � /x x x x x / I � x x x x x x x / x x x x x x PIT 27.8 AC / /XXx xxxx \ i PLANT SITE/FUTURE PIT 3.1 AC \ \ / I ' x V x x x / x x x x x , ` x x x UNDISTURBED BUFFER 21.2 AC x x x , ; x x x / x x x 1 x x �' ,/ /x x OTHER MISC. AREA 9.6 AC \ , .i X x x ' / X x x / 'A (BERMS, TEMP. DIVERSIONS, ETC.) \ / x x x ,� ,// %fix x x x , , x ,f, x x x x , / x x x TOTAL PROJECT AREA 61.7 AC `` �� ' x x x x X'x / _ /� xxx `xxx � x x x , PLANT SITE/ x x x — — — — — 1.x x x ,' FUTURE PIT x x x x DISTURBED AREAS / \� I �� � x x x //� 2.1 AC Xi `� x x x x 50'AREA TO BE BACKFILLED(TYP) PER SECTION 919-H REQUIREMENT / \ / x x x x x x x x x x xxx `` x x x x 150 TO BE BACKFILLED FROM R/W / JIf J x x x x x x x x x TAILINGS/SEDIMENT PONDS 1.4 AC Xxxx x x x �` x x xxxx xxx xxx xxxx xxx x xxx xxx zxxxxx STOCKPILES 1.1 AC � � �� �� x x x xxx x x x `� xxx xx x x x x x x x x x x x x x �`\ x x x x x x x x x x x x x x x x x x x x x x x \ x x x x x x x x x x x PROCESSING AREA/HAUL ROADS 3.1 AC — / / �x x x xxx xxx x xxx ,�� x x x Z x x x x x x x x x x x x , `� x x x x�� x x x x ASSUMED WATER LINE `�� x x x xxx �/ ♦� x x x x x APPRX. EL=104' xxxx , x X�x MINE EXCAVATION 27.8 AC // / x x x WATER TABLE 5'+/- x x x x x \ O �\ x x BELOW GROUND(TYP) �♦ /' x x`x ✓ \ / w/ FUTURE PIT 3.1 AC x x x `', `� x x � x x x'• r // /// / xx `, x x x x 1 Q ✓—� / x x x , ,, x x x r OTHER MISC EXCAVATION 9.6 AC / // , : X x TEMPORARY DIVERSION ,' x x X x V BERMS DIVERSIONS ETC. / / I ' x x 1 REMOVED DURING EXCAVATION �/ x x x ( ) \ / / x x i , x x x x x / x x x �� z TOTAL AFFECTED AREA 40.5 AC /� �/ / x x x 2:1 MAX SLOPE x x x \ Z Q / / / x x ABOVE WATER LINE / x x x / x x TO BE VEGETATED ,� xxxx / / l O J INTERNAL DRAINAGE = 34.5 AC (� �� I x x x ; ' , x x x x / Q Z I � � � /� � x x / x x x/ EXTERNAL DRAINAGE= 6.0 AC / x x ' x x x / Q _ _ �� xx , xxx/ / Z xxx xxx / \ \ / / W � - �_ x x , x x x X X ULTIMATE PIT '.` x X X X x � � / r I x x x 27.8 AC 2:1 MAX SLOPE �` x x X ` / �1 O a I f I x x10'BELOW WATER LINE xxx x ELEV.APPRX.=94'-104' �� x xI 19 Q x ., xxx ` �, � � � � � � o J x x ' LAKE xxx � / I xxx , xxx Q a U Ix x x � xx 28.OAC /- xXXx /� \ V 1 I / LLI � � � I� IXX ; APPRX. WATER xxx �/ \ � 1 W 0 \ I \ \ \ I XX LEVEL=104FT /' xxxx / xx xxx/ % �/ �/ � � \ \ x x x x x x x x TEMPORARY DIVERSION x x 1 SEDIMENT BASIN REMOVED DURING EXCAVATION x \ \ \ I I x x I REMOVED DURING EXCAVATION x x x x / SfTE EXfSTIN6 GRAbE LOB/P9I. T / LLI x x I ,� �x x MAX WATER ELEVATION IT m x x I — // x x x L= 105�LUS�FEE BERM(110'ABOVE/SEE LEVEL) xx x x x r / x x /��— — — \�O�\ // x x x x x x II/II/ , x x x / S I ' II / x x x x x x x x x xx IIIIIIIIII xx `�/ xxx xx , , xxxxxxxxxx xxx , Pk // x x x x x x x x x x x x x x x x i x x � � J -- _ _ / 'x x x �i Y_x x x x x� — x x x x x \`x� x x x x x x x x x x x x x x x x x x x x x x x x x x x x x/ \ x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x //'`��,, x x x x x x x �)f — �_ / \ REVISIONS DOUBLE ROW PLANTINGS SEE PLAN FOR LOCATION c C 's T U C + 4 TOPSOIL 6"MIN BACKFILL ° LEGEND �>j`✓N�,� `�T i 1 STABILIZE AND SEED � —11=III=III=I II=I II—I II—III—III—III—III—III=11 WATER LEVEL(APPROX.) p c PERMIT BOUNDARY '�- - _ - - - _' - 11- - AGENCY REVIEW ONLY C, 1�11�11� 1f I-1 I—III-111=1 =1 I—III-1 =1 2 c II IIIII IIIII II ItbF' biUbV FItII�I)�t 111 111 111 11= 1 MAX SLOPE NOTES: C, �1 �1=1�1=1�11�111T111T111�111�111�1��11�111�1 �1 �1 �1T1T1=1�1 NOT FOR CONSTRUCTION z EXISTING CONTOUR 2:1 MAX SLOPE ABOVE WATER LINE c �//% %!//%%/%!//%!//% �POS��T HORTAAND 0'VERTIICAPE BELOW L DISTANCE ATER LINE AT MIN 20' C PROPOSED BUFFER ALL DENUDED AREAS ABOVE WATER LINE TO Scale: Drawn by: MTB AFFECTED AREA BE VEGETATED PER SECTION 919 QUARRY OF 1"=100' ZONING ORDINANCE. CREEK / Sheet: Designed by: ° �i/,�j ; MINIMUM POND DEPTH-5.0, z //„/,%// %j/ /j/ /// j// /�;,i, MTB c BERM C, Reviewed by: MTB 300 0 300 600 900 PIT SIDE WALL RECLAMATION (TYP) C5 of 11 POND Project Number: Date: NTS DDS JOB#: 2022-42 JULY 2023 Scale: 1" = 300' N. RAFTING AND DESIGN O MAINTENANCE PLAN TEMPORARY SEEDING PERMANENT SEEDING SERVICES, INC. THE OPERATOR IS RESPONSIBLE FOR MAINTAINING EROSION CONTROL DEVICES THROUGHOUT THE PROJECT DURATION. PROVIDE TEMPORARY SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN THE FOLLOWING SCHEDULE: SEE SEEDING SCHEDULE FOR SEED TYPE AND RATE. ALL EROSION AND SEDIMENT CONTROL DEVICES SHALL BE CHECKED FOR STABILITY AND OPERATION FOLLOWING EVERY RUNOFF-PRODUCING PERMANENT DITCHES--> IMMEDIATELY(ROCK LINED) PROVIDE PERMANENT SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE COVERED BY PAVING, BUILDINGS,OR OTHER LANDSCAPING. AREAS 6728 Carbonton Road RAINFALL BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN ALL DEVICES AS SLOPES 4:1 OR STEEPER--> 7 DAYS RECEIVING PERMANENT VEGETATION MUST BE STABILIZED WITHIN THE FOLLOWING TIMEFRAMES AFTER FINAL GRADE IS REACHED, UNLESS Sanford, North Carolina 27330 DESIGNED. ALL OTHER AREAS--> 14 DAYS TEMPORARY STABILIZATION IS APPLIED. (919) 499-8759 Phone SKIMMER BASINS: PERMANENT DITCHES--> IMMEDIATELY(ROCK LINED) draftinganddesign@ymail.com IF SOILS BECOME COMPACTED DURING GRADING, LOOSEN THEM TO A DEPTH OF 6-8 INCHES. SLOPES 4:1 OR STEEPER--> 7 DAYS 1. BASINS ARE TO BE CLEANED OF SEDIMENT WHEN ITS STORAGE CAPACITY IS REDUCED BY 50%. PLACE SEDIMENT REMOVED FROM THE SEEDBED PREPARATION: ALL OTHER AREAS-->14 DAYS BASIN IN A STOCKPILE AREA AS SHOWN ON THE PLAN OR AN AREA THAT HAS ADEQUATE EROSION CONTROL MEASURES. 2. CHECK BERM STRUCTURE,SPILLWAYS,AND SKIMMER PIPE EVERY WEEK FOR EROSION AND PIPING. 3. MAINTAIN BAFFLES AS DIRECTED BELOW. LIME: APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. IF THE SOIL PH IS NOT KNOWN,APPLY AT A RATE OF 1 TO 1 Y2 TONS PER COMPLETE GRADING BEFORE PREPARING SEEDBEDS. IF SOILS BECOME COMPACTED DURING GRADING, LOOSEN THEM TO A DEPTH OF 6-8 4. ANY RIP RAP DISPLACED FROM SPILLWAY MUST BE REPLACED IMMEDIATELY. ACRE ON COARSE-TEXTURED SOILS AND 2-3 TONS PER ACRE OF FINE-TEXTURED SOILS. APPLY LIME UNIFORMLY AND INCORPORATE INTO 5. AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE BASIN(PHASE 2 OF CONSTRUCTION SEQUENCE)AND ALL UNSTABLE THE TOP 4-6 INCHES OF SOIL. SOILS WITH PH HIGHER THAN 6 DO NOT NEED LIME. INCHES. SEDIMENT. GRADE ACCORDING TO GRADING PLAN OR BLEND IN WITH ADJACENT GRADES-ADDITIONAL COMPACTION EFFORTS MAY BE FERTILIZER: FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS. WHERE SOIL TESTS ARE NOT AVAILABLE,APPLY A 10-10-10 GRADE SEEDBED REQUIREMENTS: REQUIRED IF STRUCTURE IS PROPOSED FOR THAT AREA. STABILIZE AREA. FERTILIZER AT 700 1,000 LB/ACRE. INCORPORATE FERTILIZER 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 THE SOIL SHOULD MEET THE FOLLOWING MINIMUM CRITERIA FOR VEGETATION ESTABLISHMENT: . BAFFLES: ENOUGH FINE-GRAINED(SILT AND CLAY)MATERIAL TO MAINTAIN ADEQUATE MOISTURE AND NUTRIENT SUPPLY(AVAILABLE WATER SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED,SEALED,OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY CAPACITY OF AT LEAST 0.05 INCHES OF WATER TO 1 INCH OF SOIL 1. MAINTAIN ACCESS TO BAFFLES.SHOULD THE FABRIC COLLAPSE, DECOMPOSE,TEAR,OR BECOME INEFFECTIVE,REPLACE IT PROMPTLY. DISKING, RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR FURROW SLOPES STEEPER THAN 3:1 ON THE CONTOUR • SUFFICIENT PORE SPACE TO PERMIT ROOT PENETRATION. 2. REMOVE BUILDUP SEDIMENT WHEN IT REACHES ONE-HALF FULL. TAKE CARE NOT TO DISTURB BAFFLES DURING CLEANOUT. BEFORE SEEDING. • SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE ROOT ZONE. THE DEPTH OF ROCK OR IMPERMEABLE LAYERS SUCH AS HARDPANS SHOULD BE 12 INCHES OR MORE, EXCEPT ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE. SILT FENCE: PLANT SELECTION: A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0-6.5. • NO LARGE ROOTS,BRANCHES,STONES, LARGE CLODS OF EARTH,AND TRASH. CLODS AND STONES MAY BE LEFT ON SLOPES 1. SEDIMENT SHALL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES ABOUT 0.5 FT DEEP AT THE FENCE. THE FENCE STEEPER THAN 3:1 IF THEY ARE TO BE HYDROSEEDED. SHALL BE REPAIRED AS REQUIRED TO MAINTAIN A SUFFICIENT BARRIER. SELECT THE APPROPRIATE SPECIES BASED ON THE PLANTING SEASON. 2. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, DECOMPOSE,TEAR,OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY. IF THE ABOVE CRITERIA CANNOT BE MET,SPECIAL SOIL CONDITIONERS OR TOPSOIL MAY BE APPLIED. 3. AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT. GRADE AREA SEEDING: TO GRADING PLAN OR BLEND WITH ADJACENT GRADES. STABILIZE AREA. APPLY SEED WITH A BROADCAST SEEDER, DRILL,CULTIPACKER SEEDER,OR HYDROSEEDER. USE SEEDING RATES GIVEN IN TABLES. SEEDBED PREPARATION: TEMPORARY DIVERSIONS: BROADCAST SEEDING AND HYDROSEEDING IS ACCEPTABLE ON STEEP SLOPES WHERE EQUIPMENT CANNOT BE DRIVEN. HAND BROADCASTING IS NOT RECOMMENDED. LIME: APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. IF THE SOIL PH IS NOT KNOWN, FOLLOW RATES ON THE SEEDING SPEC TABLE. 1. IMMEDIATELY REMOVE EXCESS SEDIMENT FROM FLOW AREA AND REPAIR DIVERSION RIDGE. 2. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED. SMALL GRAINS SHOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND LEGUMES ON MORE THAN Y2 INCH. BROADCAST FERTILIZER: FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS. WHERE SOIL TESTS ARE NOT AVAILABLE, FOLLOW RATES ON THE 3. AFTER ALL AREAS HAVE BEEN STABILIZED REMOVE THE RIDGE AND THE CHANNEL AND GRADE ACCORDING TO GRADING PLAN OR SEED MUST BE COVERED BY RAKING OR CHAIN DRAGGING,AND THEN LIGHTLY FIRMED WITH A ROLLER OR CULTIPACKER. HYDROSEEDED SEEDING SPEC TABLE. BLEND WITH ADJACENT GRADES. STABILIZE AREA. MIXTURES SHOULD NOT INCLUDE A WOOD FIBER MULCH. MULCHING: SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED,SEALED,OR CRUSTED,LOOSEN IT JUST PRIOR TO SEEDING BY RIP RAP LINED DITCHES/CHANNELS/OUTLETS: DISKING,RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR FURROW SLOPES STEEPER THAN 3:1 ON THE CONTOUR 1. PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS. MULCHING IS REQUIRED FOR ALL TEMPORARY SEEDING AT A MIN RATE OF 2 TONS/ACRE WITH ASPHALT TACK. BEFORE SEEDING. 2. INSPECT FOR INDICATIONS OF PIPING,SCOUR HOLES,OR BANK FAILURES. MAKE REPAIRS IMMEDIATELY. MAINTENANCE: PLANT SELECTION: 3. MAINTAIN VEGETATION ADJACENT TO THE ROCK LINING IN A HEALTHY,VIGOROUS CONDITION TO PROTECT THE AREA FROM EROSION 14 AND SCOUR. CONTRACTOR TO MONITOR GRASS ESTABLISHMENT. PROMPTLY RESEEED AREAS WHERE A HEALTHY, DENSE GROWTH DOES NOT SELECT THE APPROPRIATE SPECIES BASED ON THE PLANTING SEASON,SOIL TYPE,SLOPES,AND LAND USES. SEE SEEDING SPEC TABLES Z GRASS LINED DITCH ES/CHAN N ELS/SWALES: ESTABLISH. CONTRACTOR MAY NEED TO PROVIDE NETTING OR TEMPORARY LINERS TO AREAS WHERE GRASS CANNOT BE ESTABLISHED IN PLANS FOR RECOMMENDED PERMANENT SEEDING MIXTURE. DUE TO EROSION. SEEDING: O 1. DURING GRASS ESTABLISHMENT PERIOD, INSPECT AFTER EVERY RAINFALL. 2. AFTER GRASS HAS ESTABLISHED, INSPECT PERIODICALLY AND AFTER HEAVY RAINFALL. IMMEDIATELY MAKE REPAIRS. USE CERTIFIED SEED(INSPECTED BY THE NORTH CAROLINA CROP IMPROVEMENT ASSOCIATION). 3. PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS. 4. GRASS SHOULD BE MAINTAINED IN A HEALTHY VIGOROUS CONDITION AT ALL TIMES,SINCE IT IS THE PRIMARY EROSION PROTECTION. APPLY SEED WITH A BROADCAST SEEDER, DRILL,CULTIPACKER SEEDER,OR HYDROSEEDER ON A FIRM, FRIABLE SEEDBED. USE SEEDING RATES GIVEN IN TABLES. WHEN USING A DRILL OR CULTIPACKER SEEDER,SMALL GRAINS SHOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND W Z W LEGUMES ON MORE THAN Y2 INCH. � Z I— � O WHEN BROADCAST SEEDING,SUBDIVIDE AREA INTO WORKABLE SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH Q z TEMPORARY SEEDING SCHEDULE SECTION. APPLY ONE-HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA AND APPLY THE REMAINING SEED IN THE SAME O J MANNER BUT AT RIGHT ANGLES TO THE FIRST PASS. COVER SEED BY RAKING OR CHAIN DRAGGING,AND THEN LIGHTLY FIRM WITH A WINTER & EARLY SPRING TEMPORARY SEEDING SCHEDULE TEMPORARY SEEDING SCHEDULE ROLLER OR CULTIPACKER. O Z 0 �/� / Seeding mixture FALL SUMMER MULCH AREAS IMMEDIATELY AFTER SEEDING IN ACCORDANCE WITH RATES GIVEN IN TABLES. ANCHOR MULCH WITH NETTING OR LIQUID LU silt■ Species Rate(lb/acre) Seeding mixture Seeding mixture ASPHALT AT A RATE OF 0.10 GALLON PER SQUARE YARD(10 GAL/1000 SQ FT). F___ Rye(grain) 120 Species Rate 11b//acre) Species Rate (lb/acre) HYDROSEEDING: Z Rye (grain) Annual lespedeza (Kobe in German millet 40 O 0 Z O Piedmont and Coastal Plain, SURFACE ROUGHENING IS REQUIRED. FINE SEEDBED PREPARATION IS NOT NECESSARY. U Korean in Mountains 50 Seeding dates In the Piedmont and Mountains, a small-stemmed Sudangrass may be � O z Mountains-Aug. 15- Dec. 15 substituted at a rate of 50 lb/acre. RATE OF WOOD FIBER APPLICATION SHOULD BE AT LEAST 4,000-6,000 LB/ACRE. 19 Omit annual lespedeza when duration of temporary cover is not to Coastal Plain and Piedmont-Aug. 15- Dec. 30 Q 0 O p P rY APPLY LEGUME INOCULANTS AT FOUR TIMES THE RECOMMENDED RATE WHEN ADDING INOCULANT TO HYDROSEEDER SLURRY. Y Soil amendments Mounts dates extend beyond June. g Follow soil tests or apply 2,000 Ib/acre ground agricultural limestone Mountains-May 15-Aug. 15 APPLY LIME IN DRY FORM. 0 Seeding dates Piedmont-May 1 -Aug. 15 Mountains-Above 2500 feet: Feb. 15- May 15 and 1,000 lb/acre 10-10-10 fertilizer. Coastal Plain-Apr. 15-Aug. 15 APPLICATION at Z O/ Below 2500 feet: Feb. 1- May 1 Mulch Q 0. Piedmont-Jan. 1 - May 1 Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting, Soil amendments STEP 1 -1/3 MULCH RATE,ALL SEEDING AND ALL INOCULANT SPREAD IN ONE DIRECTION w Coastal Plain-Dec. 1 -Apr. 15 or a mulch anchoring tool. A disk with blades set nearly straight can be Follow recommendations of soil tests or apply 2,000 lb/acre ground STEP 2-2/3 MULCH RATE APPLIED IN OPPOSING DIRECTION agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Soil amendments used as a mulch anchoring tool. Follow recommendations of soil tests or apply 2,000 lb/acre ground Maintenance Mulch W agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting, MAINTENANCE: g Repair and refertilize damaged areas immediately. Topdress with 50 lb/acre of nitrogen in March. If it is necessary to extent temporary or a mulch anchoring tool. A disk with blades set nearly straight can be IF STAND IS INADEQUATE, RE-EVALUATE PLANT CHOICE AND QUANTITIES OF LIME AND FERTILIZER. REESTABLISH THE STAND AFTER Mulch used as a mulch anchoring tool.cover beyond June 15, overseed with 50 lb/acre Kobe (Piedmont and SEEDBED PREPARATION OR OVER-SEED THE STAND. CONSIDER SEEDING TEMPORARY,ANNUAL SPECIES IF THE TIME OF YEAR IS NOT Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,netting, or a mulch anchoring tool. A disk with blades set nearly straight can be Coastal Plain) or Korean (Mountains) lespedeza in late February or Maintenance APPROPRIATE FOR PERMANENT SEEDING. early March. Refertilize if growth is not full adequate. Reseed, refertilize and mulch U used as a mulch anchoring tool. g Y q immediately following erosion or other damage. Maintenance Refertilize if growth is not fully adequate. Reseed,refertilize and mulch immediately following erosion or other damage. REVISIONS a HERBACEOUS PLANTS-Seeding recommendations for primary stabilization PERMANENT SEEDING SCHEDULE Successfull development depends on planting date(effectiveness goal: 6 mo.-3 yrs.without an ongoing maintenance program) Table 6.11.c r SOURCE:NCDEQ EROSION CONTROL MANUAL 6.1lb NATIVE SPECIES Op timal Plartinq Dates HERBACEOUS PLANTS-Seeding recommendations for primary stabilization Successful development depends on planting date (effectiveness goal: 6 mo.-3 yrs.without an ongoing maintenance program) Table 6.11.b t See Table (i.1l.tl for Fenili zationf Invasive NON-NATIVE SPECIES Botanical Name l Native) variety limestone coastal Sunshade Riparian Yes or Installation)Maintenance other information, s Common Name Cultivar Introduced seedlingrates Ibs/acre Mountains Piedmont Plains tolerant Wetlands Buffers No Considerations commentary Optimal Plantin C Dates I] Switch ress Penrvum vir atom/ N A BV soil test 1211-4115 NR NR Sun AR Vell draine No Responds well to Broadcast Cave am-Rock only controlled bums. Mix with • 6aedinp Fertirmation/ 3 to 5 other seed varieties Botanical Name/ liative 1 states limestone coastal Sun/Shade Riparian Invasive Installation/Maintenance that have similar soil Common Name Cultivar introduced Ibsfacre Ibs/acre Mountains Piedmont Plains tolerant Wetlands Buffers Yes or hita Considerations Other information,commentary 2 Sell Lespedeza Lespedeza cuneata 1 15lbs B soil test 9/1-6/1 9/1-511 10/1-4M Sun NR MR Yes Responds well to controlled Severe Threat drainage adaptations --__ Dumont'—_— — —_ _. —_ __ _—_ burns — Invasive s ecles Switchgrass Penrum virgatum/ A By soil test 12A-4115 12/1-411 12/1-4J1 Sun AR ell draine No Responds well to B/ackweff N only controlled bums. Mix with 3 to 5 other seed varieties t —.— that have similar soil draina e adaptations C T _______ _ —`__ —._.._.__—_— Crown V81Ch— Secu'Bra varia I 151bs B sot test wis 30 NR — NR Sun NR NR Yes Hi h co etitive, Prefare neutral cols Switchgrass Penrcum vir atum/ N A B soil test 1211-4/15 1211-4/1 12/1-411 Sun NR ell draine No Res odds well to _ (CoroniNa varia) ___ —_ --___ __ _ _ _--_ _._,— ___—__ .__- not reCommended_unless_ __ she/ter only controlled bums. Mix with an acceptable alemative 3 to 5 other seed varieties c is not available. that have similar soil drainage adaptations_ 4 ceptEmdearns Eremilochloa o iurol 1 5 Ibs B soil test MR-,--- Eastern 911-5/1 Sun MR. NR No _ Si nificant maintenance Dces not tolerate hi h tratTic. 101bs.for road shoulders only may be required to obtain Acceptable for sodding Switc:h.Ejrass Panicum vir atum/ N A BV soil test 12/14l15 12/1-4l1 12114J1 Sun Yes Yes No Responds well to r desired cover Carthage controlled bums. Mix with U 3 to 5 other seed varieties KY 31 Tall Fescue Schedonorus phoeri 1 100 fits By soil test 8/15-5/1 9/14/15 9130.3/15 Sun! MR MR Yes If utilized,it is imperative Acceptable for sodding that have similar soil s Festuca arundinacea mod.Shade that maintenance includes drainage adaptations. s ------ ------- /----- - - -- -— ---- -- - -- ---- ---- - ------ o r a containment plan Switchgrass Pemrvum virgetuml N A By soil test 1211-4/15 1211-4/1 12/1-411 Sun No poorly No Responds well to N c Kenbw drained controlled bums. Mix with KY Blue Grass Poa ratensis I 15lbs By sod test 8/155/1 MR MR Sun MR MR Yes If utilized,it is imperative Prefers neutral soils,highly 3 to 5 other seed varieties that maintenance includes compelitive,not recommended c _ — — AGENCY � -------- ----------- -- --- -------- ---- -- -- _----- ---- --- ------ a containment Ian unless an acceptable alternative that have similar soil A E L drainage adaptations. C is not available.___ .. - -- --- -- -- — ---------- --- —_ — -- -- Acceptable for sodding Switchgrass Panrcum vrrgatum/ N A By soil test FIR 1 1211-511 111-5J1 Sun No Poorly No Responds well to NOT FOR CONSTRUCTION c _ Alamo drained controlled bums_ Mix with r 3 to 5 other seed varieties t l l Fescue Festuca brevi ila — I _ 1511 By soil test 8/1-6/1 N_R_ MR_ Shade _ _N_R_ MR _ _— No___Not recommended for — Low growing,bunch grass_____- that have similar soil Festuca fo i/olia — slopes greater than 5% drainage adaptations. C Bermuda Grass C nodon di I 251bs By soil test MR 4/15-6/30 4115-6/30 Sun MR MR Yes If utilized,4 is imperative Extremely aggressive,not Indiangrass SDrqhasfrummitsnsl N B BV soil test 12/1-4/15 12/1-4/1 1211-4J1 Sun AR Well No Responds well to Western coastal plain only Scale: Drawn by: that maintenance Includes recommended and should be Rumsey drained controlled bums. Mix with •S a containment Ian avoided unless an acca table 3 to 5 other seed varieties MTB e ------- -'----- ---' ---- ----' —. _ _--- ---—.— — ----..... -- --1r--'-- —---_._bl ----- alternative Is not available. that have similar soil NTS —._._—_—_-- --------_.-- —._----- —__ ._---_--- --- _----- ------ ---.._— —._.--- --__---- --------_—.. May be sodded ors ri ed—._--- drainage adaptations ------ - - Sheet: Designed by: ° Indiangrass sorghasfmm nutansl N B By soil test 1211-4115 1211-4/1 12/1-411 Sun NR Well No Responds well to Westem coastal plain only MTB Osage drained controlledbums. Mixwith — — 3 to 5 other seed varieties c that have similar soil m draina e ado tat ions. Reviewed by: c ----- - _ -- --- -- _._ _-.. _ - -- ---- - -- - - --- ------------ -------- /+ MTB C 6 of 11 c Project Number: Date: DDS JOB#: 2022-42 3 JULY 2023 NOTE: GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH EQUIPMENT AND VEHICLE MAINTENANCE ONSITE CONCRETE WASHOUT RAFTING AND DESIGN NCG01 PERMIT PROVISIONS HAVE BEEN PROVIDED AS GENERAL GUIDE THE NCGO1 CONSTRUCTION GENERAL PERMIT 1. Maintain vehicles and equipment to prevent discharge of fluids. STRUCTURE WITH LINER O WITH MINING OPERATIONS DURING THE CONSTRUCTION PORTION OF Implementing the details and specifications on this plan sheet will result in the construction 2. Provide drip pans under any stored equipment. SERVICES, INC. THE PROJECT AS A BEST MANAGEMENT PRACTICE. activity being considered compliant with the Ground Stabilization and Materials Handling U- A o "s,"PE= ' °""`"" o� sections of the NCG01 Construction General Permit Sections E and F,respectively). The 3. Identify leaks and repair as soon as feasible,or remove leaking equipment from the s o HOWEVER, MINING OPERATIONS ARE CURRENTLY EXEMPT FROM THESE ( p y)' project. o s",FE"` °E "s,""Epermittee shall comply with the Erosion and Sediment Control plan approved by the ��"°�°"° 6728 CarbOntOn Road REQUIREMENTS UNDER THE NCG02 PERMIT. 4. Collect all spent fluids,store in separate containers and properly dispose aso o sE TON a-adelegated authority having jurisdiction.All details and specifications shown on this sheetSanford, North Carolina 27330 may not apply depending on site conditions and the delegated authority havingjurisdiction. hazardous waste(recycle when possible). y pp y p g g Y l `° " (919) 499-8759 phone 5. Remove leaking vehicles and construction equipment from service until the problemP °."°°E°E„wx,<^M", SECTION °a'"°"` "°`""°"°E,Ea"'"`°'"""° i ",°".,°"°E,E"M"E°"FE° has been corrected. °""`°`°" "°"'"' SECTION E:GROUND STABILIZATION cLE"RLVMp draftinganddesign@ymait.com 6. Bring used fuels, lubricants,coolants, hydraulic fluids and other petroleum products °""Es.R°"°REs`^'""' °°°RE"c"E= cLEpRLV^^"R"E°SI° 0M121N0HE5OFFREEeOARD Required Ground Stabilization Timeframes PLAN ,EAR,M"R"E°w„"s,°""°E"°„"°°E",E PAN °w„" °""°E s to a recycling or disposal center that handles these materials. °T,"°°EI,IE Stabilize within this many calendar BELOW GRADE WASHOUT STRUCTURE ABOVE GRADE WASHOUT STRUCTURE Site Area Description Timeframe variations days after ceasing LITTER,BUILDING MATERIAL AND LAND CLEARING WASTE land disturbance 1. Never bury or burn waste. Place litter and debris in approved waste containers. (a) Perimeter dikes, 2. Provide a sufficient number and size of waste containers(e.g dumpster,trash CONCRETE WASHOUTS swales,ditches,and 7 None receptacle)on site to contain construction and domestic wastes. 1. Do not discharge concrete or cement slurry from the site. perimeter slopes 3. Locate waste containers at least 50 feet away from storm drain inlets and surface 2. Dispose of,or recycle settled, hardened concrete residue in accordance with local (b) High Quality Water waters unless no other alternatives are reasonably available. and state solid waste regulations and at an approved facility. (HOW)Zones 7 None 4. Locate waste containers on areas that do not receive substantial amounts of runoff 3. Manage washout from mortar mixers in accordance with the above item and in If slopes are 10'or less in length and are from upland areas and does not drain directly to a storm drain,stream or wetland. addition place the mixer and associated materials on impervious barrier and within (c) Slopes steeper than p g 3:1 7 not steeper than 2:1, 14 days are 5. Cover waste containers at the end of each workday and before storm events or lot perimeter silt fence. allowed provide secondary containment. Repair or replace damaged waste containers. 4. Install temporary concrete washouts per local requirements,where applicable. If an -7 days for slopes greater than 50'in 6. Anchor all lightweight items in waste containers during times of high winds. alternate method or product is to be used,contact your approval authority for length and with slopes steeper than 4:1 7. Empty waste containers as needed to prevent overflow. Clean up immediately if review and approval. If local standard details are not available,use one of the two -7 days for perimeter dikes,swales, containers overflow. types of temporary concrete washouts provided on this detail. (d) Slopes 3:1 to 4:1 14 ditches, perimeter slopes and HOW 8. Dispose waste off-site at an approved disposal facility. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk Zones 9. On business days,clean up and dispose of waste in designated waste containers. sections. Stormwater accumulated within the washout may not be pumped into or -10 days for Falls Lake Watershed discharged to the storm drain system or receiving surface waters. Liquid waste must -7 days for perimeter dikes,swales, PAINT AND OTHER LIQUID WASTE be pumped out and removed from project. ditches,perimeter slopes and HQW Zones 1. Do not dump paint and other liquid waste into storm drains,streams or wetlands. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it (e) Areas with slopes can be shown that no other alternatives are reasonably available. At a minimum, flatter than 4:1 14 -10 days for Falls Lake Watershed unless 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface install protection of storm drain inlet(s)closest to the washout which could receive there is zero slope waters unless no other alternatives are reasonably available. spills or overflow. Note:After the permanent cessation of construction activities,an areas with temporary 3. Contain liquid wastes in a controlled area. p Y p Y 7. Locate washouts in an easily accessible area,on level ground and install a stone ground stabilization shall be converted to permanent ground stabilization as soon as 4. Containment must be labeled,sized and placed appropriately for the needs of site. entrance pad in front of the washout. Additional controls may be required by the practicable but in no case longer than 90 calendar days after the last land disturbing 5. Prevent the discharge of soaps,solvents,detergents and other liquid wastes from approving authority. activity. Temporary ground stabilization shall be maintained in a manner to render the construction sites. 8. Install at least one sign directing concrete trucks to the washout within the project surface stable against accelerated erosion until permanent ground stabilization is achieved. limits. Post signage on the washout itself to identify this location. PORTABLE TOILETS 9. Remove leavings from the washout when at approximately 75%capacity to limit GROUND STABILIZATION SPECIFICATION 1. Install portable toilets on level round,at least 50 feet away from storm drains, Stabilize the round sufficient) so that rain will not dislodge the soil. Use one of the p g Y overflow events. Replace the tarp,sand bags or other temporary structural g y g streams or wetlands unless there is no alternative reasonably available. If 50 foot components when no longer functional. When utilizing alternative or proprietary techniques in the table below: offset is not attainable, provide relocation of portable toilet behind silt fence or place products,follow manufacturer's instructions. 14 Temporary stabilization Permanent Stabilization on a gravel pad and surround with sand bags. 10. At the completion of the concrete work, remove remaining leavings and dispose of Z •Temporary grass seed covered with straw or • Permanent grass seed covered with straw or 2. Provide staking or anchoring of portable toilets during periods of high winds or in high in an approved disposal facility. Fill pit,if applicable,and stabilize any disturbance other mulches and tackifiers other mulches and tackifiers foot traffic areas. caused by removal of washout. • Hydroseeding • Geotextile fabrics such as permanent soil 3. Monitor portable toilets for leaking and properly dispose of any leaked material. • Rolled erosion control products with or reinforcement matting Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace O without temporary grass seed • Hydroseeding with properly operating unit. 0 • Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered HERBICIDES,PESTICIDES AND RODENTICIDES • Plastic sheeting with mulch 1. Store and apply herbicides, pesticides and rodenticides in accordance with label • Uniform and evenly distributed ground cover EARTHEN STOCKPILE MANAGEMENT restrictions. sufficient to restrain erosion 1. Show stockpile locations on plans. Locate earthen-material stockpile areas at least 2. Store herbicides,pesticides and rodenticides in their original containers with the • Structural methods such as concrete,asphalt or 50 feet away from storm drain inlets,sediment basins,perimeter sediment controls label,which lists directions for use,ingredients and first aid steps in case of retaining walls and surface waters unless it can be shown no other alternatives are reasonably accidental poisoning. W • Rolled erosion control products with grass seed available. 3. Do not store herbicides, pesticides and rodenticides in areas where flooding is � � � J 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of possible or where they may spill or leak into wells,stormwater drains,ground water O POLYACRYLAMIDES(PAMS)AND FLOCCULANTS five feet from the toe of stockpile. or surface water. If a spill occurs,clean area immediately. 0 �■ 1. Select flocculants that are appropriate for the soils being exposed during 3. Provide stable stone access point when feasible. 4. Do not stockpile these materials onsite. O construction,selecting from the NC DWR List of Approved PAMS/Flocculants. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance 2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. with the approved plan and any additional requirements. Soil stabilization is defined O Z 3. Apply flocculants at the concentrations specified in the NC DWR List of Approved as vegetative,physical or chemical coverage techniques that will restrain accelerated z PAMS/Flocculants and in accordance with the manufacturer's instructions. erosion on disturbed soils for temporary or permanent control needs. HAZARDOUS AND TOXIC WASTE �/ A/ O 4. Provide ponding area for containment of treated Stormwater before discharging 1. Create designated hazardous waste collection areas on-site. i W offsite. ICI■ 2. Place hazardous waste containers under cover or in secondary containment. � IL � � U 5. Store flocculants in leak-proof containers that are kept under storm-resistant cover 3. Do not store hazardous chemicals,drums or bagged materials directly on the ground. O O Z z or surrounded by secondary containment structures. W 1 O W �^ NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19 Z a O � vv O W p w PART III PART III PART III Z SELF-INSPECTION, SELF-INSPECTION,RECORDKEEPING AND REPORTING RECORDKEEPING AND REPORTING SELF-INSPECTION,RECORDKEEPING AND REPORTING Q SECTION A:SELF-INSPECTION SECTION B:RECORDKEEPING SECTION C:REPORTING Self-inspections are required during normal business hours in accordance with the table 1. E&SC Plan Documentation 1. Occurrences that must be reported below. When adverse weather or site conditions would cause the safety of the inspection Permittees shall report the following occurrences: W personnel to be in jeopardy,the inspection may be delayed until the next business day on The approved E&SC plan as well as any approved deviation shall be kept on the site. The (a) Visible sediment deposition in a stream or wetland. which it is safe to perform the inspection. In addition,when a storm event of equal to or approved E&SC plan must be kept up-to-date throughout the coverage under this permit. W greater than 1.0 inch occurs outside of normal business hours,the self-inspection shall be The following items pertaining to the E&SC plan shall be documented in the manner described: (b) Oil spills if: performed upon the commencement of the next business day. Anytime when inspections were delayed shall be noted in the Inspection Record. • They are 25 gallons or more, •Item to Document Documentation Requirements They are less than 25 gallons but cannot be cleaned up within 24 hours, V Frequency • They cause sheen on surface waters(regardless of volume),or (a) Each E&SC Measure has been installed Initial and date each E&SC Measure on a copy Inspect (during normal Inspection records must include: and does not significantly deviate from the of the approved E&SC Plan or complete,date They are within 100 feet of surface waters(regardless of volume). business hours) (1)Rain gauge Daily Daily rainfall amounts. locations,dimensions and relative elevations and sign an inspection report that lists each maintained in If no daily rain gauge observations are made during weekend or shown on the approved E&SC Plan. E&SC Measure shown on the approved E&SC good working holiday periods, and no individual-day rainfall information is Plan. This documentation is required upon the (a) Releases of hazardous substances in excess of reportable quantities under Section 311 order available,record the cumulative rain measurement for those un- initial installation of the E&SC Measures or 4 of the Clean Water Act(Ref:40 CFR 110.3 and 40 CFR 117.3)or Section 102 of CERCLA attended days (and this will determine if a site inspection is the E&SC Measures are modified after initial (Ref:40 CFR 302.4)or G.S. 143-215.85. needed). Days on which no rainfall occurred shall be recorded as installation. "zero." The permittee may use another rain-monitoring device approved by the Division. (b) A phase of grading has been completed. Initial and date a copy of the approved E&SC (b) Anticipated bypasses and unanticipated bypasses. (2) E&SC At least once per 1. Identification of the measures inspected, Plan or complete,date and sign an inspection REVISIONS Measures 7 calendar days 2. Date and time of the inspection, report to indicate completion of the and within 24 3. Name of the person performing the inspection, construction phase. (c) Noncompliance with the conditions of this permit that may endanger health or the hours of a rain 4. Indication of whether the measures were operating event>1.0 inch in properly, (c) Ground cover is located and installed Initial and date a copy of the approved E&SC environment. o 24 hours 5. Description of maintenance needs forthe measure, in accordance with the approved E&SC Plan or complete,date and sign an inspection c 6. Description,evidence,and date of corrective actions taken. Plan. report to indicate compliance with approved (3)Stormwater At least once per 1. Identification of the discharge outfalls inspected, 2.Reporting Timeframes and Other Requirements qe discharge 7calendar days 2. Date and time of the inspection, ground cover specifications. After a permittee becomes aware of an occurrence that must be reported, he shall contact outfalls(SDOs) and within 24 3. Name of the person performing the inspection, (d) The maintenance and repair Complete,date and sign an inspection report. c hours of a rain 4. Evidence of indicators of stormwater pollution such as oil the appropriate Division regional office within the timeframes and in accordance with the c event>1.0 inch in sheen,floating or suspended solids or discoloration, have been performed.requirements for all E&SC Measures other requirements listed below. Occurrences outside normal business hours may also be C s 24 hours 5. Indication of visible sediment leaving the site, reported to the Division's Emergency Response personnel at(800)662-7956, (800) 6. Description,evidence,and date of corrective actions taken. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC 858-0368 or(919)733-3300. (4)Perimeter of At least once per If visible sedimentation is found outside site limits,then a record to E&SC Measures. Plan or complete,date and sign an inspection t site 7 calendar days of the following shall be made: report to indicate the completion of the Z and within 24 1. Actions taken to clean up or stabilize the sediment that has left Q corrective action. hours of a rain the site limits, Occurrence Reporting Timeframes(After Discovery)and Other Requirements event>1.0 inch in 2. Description,evidence,and date of corrective actions taken,and G - (a)Visible sediment . Within 24 hours,an oral or electronic notification. 24 hours 3. An explanation as to the actions taken to control future t deposition in a • Within 7calendar days,a report that contains a description of the c releases. 2.Additional Documentation c stream or wetland sediment and actions taken to address the cause of the deposition. p (5)Streams or At least once per If the stream or wetland has increased visible sedimentation or In addition to the E&SC Plan documents above,the following items shall be kept on the wetlands onsite 7calendar days stream has visible increased turbidity from the construction Division staff may waive the requirement for a written report on a � or offsite and within 24 activity,then a record of the following shall be made: Site case-by-case basis. (where hours of a rain 1. Description,evidence and date of corrective actions taken,and and available for agency inspectors at all times during normal business hours, unless the If the stream is named on the NC 303(d)list as impaired for sediment- accessible) event>1.0 inch in 2. Records of the required reports to the appropriate Division Division provides a site-specific exemption based on unique site conditions that make this p p p q related causes,the permittee may be required to perform additional 24 hours Regional Office per Part III,Section C,Item(2)(a)of this permit requirement not practical: monitoring,inspections or apply more stringent practices if staff of this permit. (6)Ground After each phase 1. The phase of grading(installation of perimeter E&SC determine that additional requirements are needed to assure compliance a stabilization of grading measures,clearing and grubbing,installation of storm (a) This general permit as well as the certificate of coverage,after it is received. with the federal or state impaired-waters conditions. t measures drainage facilities,completion of all land-disturbing (b)Oil s •pills and Within 24 hours,an oral or electronic notification. The notification c activity,construction or redevelopment,permanent (b) Records of inspections made during the previous 30 days. The permittee shall record release of shall include information about the date,time,nature,volume and ground cover). hazardous location of the sill or release. c 2. Documentation that the required ground stabilization the required observations on the Inspection Record Form provided by the Division or p a similar inspection form that includes all the required elements. Use of substances per Item o measures have been provided within the required p q 1(b)-(c)above timeframe or an assurance that they will be provided as electronically-available records in lieu of the required paper copies will be allowed if soon as possible. (c)Anticipated . A report at least ten days before the date of the bypass,if possible. r shown to provide equal access and utility as the hard-copy records. c bypasses[40 CFR The report shall include an evaluation of the anticipated quality and C, 122.41(m)(3)] effect of the bypass. AGENCY REVIEW ONLY € NOTE:The rain inspection resets the required 7 calendar day inspection requirement. (c) All data used to complete the Notice of Intent and older inspection records shall be C, (d)Unanticipated . Within 24 hours,an oral or electronic notification. NOT FOR CONSTRUCTION t maintained for a period of three years after project completion and made available bypasses[40 CFR Within 7calendar days,a report that includes an evaluation of the upon request. [40 CFR 122.41] 122.41(m)(3)] quality and effect of the bypass. i (e)Noncompliance • Within 24 hours,an oral or electronic notification. E with the conditions Within 7calendar days,a report that contains a description of the C of this permit that noncompliance,and its causes;the period of noncompliance, Scale: Drawn by: S may endanger including exact dates and times,and if the noncompliance has not MTB e health or the been corrected,the anticipated time noncompliance is expected to NTS i environment[44 continue;and steps taken or planned to reduce,eliminate,andCl c CFR 122.41(I)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6). Sheet: Designed by: • Division staff may waive the requirement for a written report on a MTB case-by-case basis. e Reviewed by: C 7 of 11 MTB Project Number: Date: NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19 DDS JOB#: 2022-42 JULY 2023 RAFTING AND DESIGN O SERVICES, INC_ 6728 Carbonton Road Sanford, North Carolina 27330 3:1 MAX 3:1 MAX (919) 499-8759 phone SLOPES POND EL=107.0 _ TOP EL=107.0 SLOPES c a draftinganddesign@ymail.com — a z I VOLUME REQUIRED 1800 CF/Q25 — I T a 3:1 MAX SLOPE(TYP) 3:1 MAX SLOPE(TYP) ? m LLI 7' 2" SUMP 12„ 4 5 W E - 101111 I C 24" C� - I .-J -" I III III III i NOTES 1. BASIN TO BE INSTALLED WITHOUT OUTLETS. 2. BASIN IS TO BE EXCAVATED BELOW EXISTING GROUND. .! 0 3. INSTALL TEMPORARY DIVERSIONS TO BASIN. 2'_8 . 2'-3 o 3. BASINS ARE TO BE INSTALLED AND MARKET MATERIAL STOCKPILED. ? 12' ;...; 4. OVERBURDEN TO BE USED TO CONSTRUCT BERMS ADJACENT TO BASIN. 5. INSTALL PERIMETER BERMS BELOW BASIN THROUGH LOW LYING AREAS TO PREVENT RUNOFF FROM LEAVING w THE SITE. 5" 00 6. WHEN BASINS OVERFILL THE WATER WILL POND INSIDE THE PERIMETER BERM AND INFILTRATE AND EVAPORATE. 7. PIT TO BE EXCAVATED FROM BASIN OUT.BASIN SIZE WILL INCREASE WITH EXCAVATION. SPECIFICATIONS 8. MATERIAL WILL BE EXCAVATED WET NO PIT DEWATERING. 1317 GALLON SPILL/LEAK CONTAINMENT FOR 1000 GALLON TANKS 9. BASIN HAVE BEEN DESIGNED WITH TWICE THE VOLUME CAPACITY THAN REQUIRED. WEIGHT APPROXIMATELY: 12,985 LBS. 10. BASINS TO BE INSPECTED WEEKLY. MIN. COMPRESSIVE STRENGTH CONCRETE: 4000 PSI REINFORCEMENT: #4 REBAR 12"O.C.E.W. TOP & BOTTOM IN &OUT FLOOR&WALLS SHEET N0. 11. ALL SLOPES THAT ARE DENUDED MORE THAN 7 WORKING DAYS OR 14 CALENDAR DAYS SHALL BE STABILIZED MODEL SL-1000 CONTAINMENT VESSEL o � Z AND SEEDED. A 1" SELF CLOSING VALVE IS PROVIDED TO DISCHARGE STORM WATER OR RECOVER OF 12. ONCE SEDIMENT REACHES 1 FT DEPTH THE SEDIMENT SHALL BE REMOVED. SPILLED PETROLEUM PRODUCTS. O B� SEDIMENT BASIN #1 NO OUTLET � FUEL STORAGE SECONDARY CONTAINMENT NTS NTS Q J W = Q Z I— w Capacity ______1,000 Gallons------ Heads Primary ----10 6°'_____ Paint Ext, ----Rea PrMer � � a Stanwnde Metal. Products, Inc. ------------ O 6668 state Route 305 PO Box 10 Design 11-1 Wall A6 - Shell Primary 10 Ga. Hartford, Ohio 44424 g ------------------- y -------------- Paint Int. ___________________ Phones 600-826-5243 Fax,1-330-772-3307 Code ________LL 142________ Heads Secondary __ 12 ___ 1,9so ins. O www.tankstore.con Weight Empty _________ Test Pres. ______s Psi_ ___ Shell Secondary __12 W A' Tank for Stntlonnry Use Only ----- 1 r Rev,# Dates I..L v 0 cc 7� 2'le NFTr Plpr O O Z Prinnry Swcondary ogle NPT) 6'EV 6'EV 1 W � O 4' 2' 2' 4' O6-EV Operd V 4' 24' 32' z 0 14 0 7 34' 49' Q L 48' �,B' W O � 0 Fn 12 Z O Q � w 4' I2B' W Bolt Hde(arkaredl 47' Customer;_____________________ Drg, Date: -------------- Drawing Approved By, Quoted Lead Times Begin Upon Receipt of signed Approved Drawing, Which Must be Returned Before Production Can Begin. FUEL STORAGE (1 ,000 GAL) NTS REVISIONS r cc c c c4 c n c c C s 0 t -C 0 t c c 0 c T C Q C C 4 2 f C U f c 0 n c r c AGENCY REVIEW ONLY € NOT FOR CONSTRUCTION z f 1 c Scale: Drawn by: z NTS MTB C Sheet: Designed by: ° MTBcl cl p Reviewed by: cl C 8 of 11 MTBcl cl cc c c Project Number: Date: DDS JOB#: 2022-42 3 JULY 2023 NATURAL GROUND MAXIMUM SLOPES 1. Clear the foundation area of trees, stumps, roots, loose rock, and other 24"MIN. RAFTING AND DESIGN d Construction objectionable material. W NATURAL GROUND Specifications SERVICES, INC. 2.Excavate the cross section to the lines and grades of the foundation of the MAXIMUM SLOPES liner as shown on the plans. Bring over-excavated areas to grade by increasing 2/3 W 2 Z Z 24"MIN. the thickness of the liner or by back-filling with moist soil compacted to the density of the surroundingmaterial. -� _ = 11-11111= 1 d 1 D 6728 Carbonton Road 3.Concrete linings: "'11=11111-IIIII-1 d o II II-11111=Ilill. Sanford North Carolina 27330 =1 ' - I -I _ • Place concrete linings to the thickness shown on the plans and finish them 181, I111=11I �'00 0 0O0 �I1I11=IIl1'- 4"to 12" -III ... 1- 2 Z (919) 499-8759 phone ina workmanlike manner q°8 °]IIII=i"' -11 - 11 -III 6" GRASS LINED draftinganddesignCymail.com iil -Illll iil'Itllt�� 1 1 •Take adequate precautions[o protect freshly placed concrete from extreme -IIIII_ FILTER FABRIC OR SEE PLAN D GRAVEL BEDDING temperatures to ensure proper curing. i •Ensure that subgrade is moist when concrete is poured- PARABOLIC-SHAPED WATERWAY WITH STONE CENTER DRAIN -III--III- - I i- • Install foundation drains or weep holes where needed to protect against (SHAPED BY BULLDOZER) COMPACTED SOILS uplift and piping. • Provide transverse(contraction)joints to control cracking atapproximately Construction 1. Remove all trees, brush, stumps, and other objectionable material from the 20-feet intervals. These joints may be formed by using a 1/2-inch thick W foundation area, and dispose of properly. removable template or by sawing to a depth of at least 1 inch. Specifications COMPACTED SOILS • Install expansionjoints at intervals not to exceed 100 feet. =11111=11111-11111= - d - 11=11111= 2. Excavate the channel and shape it to neat lines and dimensions shown on �=- 4" III 4.Rock riprap linings:Practice 6.15,Riprap.p p g1a" " I111 o0 111-11 to�2° the plans plus a 0.2-foot overcut around the channel perimeter to allow for PERMANENT DIVERSION BERM 5. Place filters, beddings, and foundation drains to line and grade in the -rill - bulking during seedbed preparations and sod buildup. �4.g•°- manner specified. Place filter and bedding materials immediately after slope 6" - ' ^;yi`I=_III' FILTER FABRIC OR NITS preparation. For synthetic filter fabrics,overlap the downstream edge by at -1�=111'' GRAVEL BEDDING least 12 inches with the upstream edge which is buried a minimum 12 inches -I 3. Remove and properly dispose of all excess soil so that surface water may in a trench. See figure 6.14a,page 6.14.6. Space anchor pins every 3 feet enter the channel freely. along the overlap. Spread granular materials in a uniform layer. When more V-SHAPED WATERWAY WITH STONE CENTER DRAIN NATURAL GROUND than one gradation is required,spread the layers so there is minimal mixing. (SHAPED BY MOTOR GRADER) 4. The procedure used to establish grass in the channel will depend upon the Filter material should consist of at least 3 inches of material on all sides of MAXIMUM SLOPES the drain pipe. The drain pipe conduit should be a minimum of 4 inches in severity of the conditions and selection of species. Protect the channel with 24"MIN. diameter. Acceptable materials include perforated, continuous,closed joint mulch or a temporary liner sufficient to withstand anticipated velocities during conduits of clay,concrete,metal,plastic,or other suitable material(Practice 6.81,Subsurface Drain). TYPICAL RIP RAP CHANNEL the establishment period(Appendix 8.05). 6. Perform all channel construction to keep erosion and water pollution = IIII 2 Z Z to a minimum. Immediately upon completion of the channel, vegetate all I I _ disturbed areas or otherwise protect them against soil erosion. Where channel =� d w I I II I I Maintenance During the establishment period,check grass-lined channels after every rainfall. 1 1 D 1 construction will take longer than 30 days,stabilize channels by reaches. I I II- IIII=_ After grass is established, periodically check the channel; check it after every heavyrainfall event. Immediate] make repairs. It is particularlyimportant to Maintenance Inspect channels at regular intervals as well as after major rains,and make ill II II II II-II III-III II-11111=11111= y p p ]- repairs promptly. Give special attention to the outlet and inlet sections and - check the channel outlet and all road crossings for bank stability and evidence - other points where concentrated flow enters. Carefully check stability at road FILTER FABRIC OR of piping or scour holes. Remove all significant sediment accumulations to crossings, and look for indications of piping, scour holes, or bank failures. GRAVEL BEDDING Make repairs immediately. Maintain all vegetation adjacent to the channel in maintain the designed carrying capacity. Keep the grass in a healthy,vigorous a healthy,vigorous condition to protect the area from erosion and scour during condition at all times, since it is the primary erosion protection for the channel COMPACTED SOILS out-of-bank flow'. TRAPEZOIDAL_ (Practice 6.11,Permanent Seeding). a GRASS LINED TEMPORARY/PERMANENT Z RIP RAP LINED TEMPORARY/PERMANENT DIVERSION DITCH J DIVERSION DITCH NTS TEMPORARY/PERMANENT DIVERSION DITCH O NTS NITS 19 Figure 6.17d Temporary Channel Liners; Washington State Department of Ecology Construction Construction a Figure 6.17e Channel Installation and Slope Installation; Washington State Ecology Department Even if properly designed, if not properly installed, RECP's Will probably V g p g 9y p Specifications J not function as desired. Proper installation is imperative. Even if properly Excavate channel to design W = Q � Overlap 6" min. grade and cross-section , , installed, if not properly timed and nourished, vegetation will probably not grow as desired. Proper seed/vegetation selection is also imperative. Z IIIIIIIIIIIN L LI o a and Grade the surface of installation areas so that the ground is smooth and loose. O Longitudinal anchor Terminal slope a trench 1°2" channel anchor trench When seeding prior to installation, follow the steps for seed bed preparation, O J A soil amendments, and seeding in Surface Stabilization, 6.1. All gullies, rills, O Design depth and any other disturbed areas must be fine graded prior to installation. Spread " 0 Longitudinal LU seed before RECP installation. (Important: Remove all large rocks,dirt clods, anchor trench Overeat channel 2" to allow�trl � a( ( ;s stumps,roots,grass clumps,trash, and other obstructions from the soil surface O z ` to allow for direct contact between the soil surface and the RECP.) Stake at 3'-5' - during seedbed preparation � O/ W mi Z O intervals li (� Terminal anchor trenches are required at RECP ends and intermittent trenches Z � O must be constructed across channels at 25-foot intervals. Terminal anchor Notes Z a z trenches should be a minimum of 12 inches in depth and 6 inches in width, V � P 1. La is the length of the riprap � O b" while intermittent trenches need be only 6 inches deep and 6 inches wide. apron. W In ' 2. d=1.5 times the maximum v) ra Typical installation stone diameter but not less with erosion control Installation for Slopes- Place the RECP 2-3 feet over the tap of the slope than 6". Z Q r+ r, 04 blankets or turf �� and into an excavated end trench measuring approximately 12 inches deep Pipe Outlet to Flat Area- 3. In a well-defined channel ex- a n w'f 6 inches wide. Pin the RECP at I foot intervals along the bottom of the No Well-defined Channel tend the apron up the channel reinforcement mats r banks to an elevation of 6" LJJ �.\00 bra trench, backfill, and compact. Unroll the RECP down (or along) the slope above the maximum tailwater A/ bo 6" depth or to the top of the bank, ■r maintaining direct contact between the soil and the RECP. Overlap adjacent ado A A whichever is less. W t Intermitten check slot Longitudinal anchor trench --- SIOt at z5' r0115 a minimum Of 3 inches. Pin the RECP t0 the ground using Staples Or __ 4. A filter blanket or filter fabric do should be installed between W f° intervals pins in a 3 foot center-to-center pattern. Less frequent stapling/pinning is �- --- ' _ the riprap and soil foundation. _ \ acceptable on moderate slopes. Shin le-la sliced ends or in new Plan g p p � Installation in Channels-Excavate terminal trenches(12 inches deep and 6 Construction 1. Ensure that the subgrade for the filter and riprap follows the required lines Initial channel Intermittent roll in an intermittent check slot and grades shown in the plan. Compact any fill required in the subgrade to the anchor trench i check slot .. .. inches wide)across the channel at the upper and lower end of the lined channel a Specifications density ofsurroundingun a e ea subgrade on �E•r " sections. g channel, across udisturbed soilay also be filled by increasing the riprap thickness. sec � ns. At 25-foot intervals along the annel, anchor the RECP acr the Ad IIII- 2. The riprap and gravel filter must conform to the specified grading limits Prepare soil and apply seed befct:.: chanl�el either in 6 inch by 6 inch trenches or by installing two closely spaced ,-�1Tn j = - - �=1u1 shown on the plans. installing blankets, mats or oth rows of anchors. Excavate longitudinal trenches 6 inches deep and wide along 'Filter Section AA 3. Filter cloth,when used,must meet design requirements and be properly temporary channel liner blanket p � � �'` � Channel edges (above Water hue) In Which t0 bury the Outside RECP edges. protected from punching or tearing during installation. Repair any damage by Pl removing the riprap and placing another piece of filter cloth over the damaged NOTE ace the first RECP at the dolAmstream end of the channel. Place the end of Pipe Outlet to Well-defined area. All connecting joints should overlap so the top layer is above the 1. Check slots to be Constructed per manufacturers specifications. % the first RECP in the terminal trench and pin it at I foot intervals along the Channel downstream layer a minimum of 1 foot. If the damage is extensive,replace 2. Staking or stapling layout per manufacturers specifications. . the entire filter cloth. bottom of the trench. REVISIONS 4. Riprap maybe placed by equipment,but take care to avoid damaging the <i it Note:The RECP should be placed upside down in the trench with the roll on alter. the downstream side of the bench. A A 5. The minimum thickness of the riprap should be 1.5 times the maximum Slope surface shall be smooth before If there is a berm at the top of ---- stone diameter. r or ro er soil contact. slope, anchor U slo e o the berm. 6. Riprap maybe fieldstone or rough quarry stone. It should be hard placement f proper p , p p f m x` �;� kaY Once pinned and bacl.-filled, the RECP is deplo}�ed by wrapping over the p p y �' q ry y • V "t M angular,highly weather-resistant and well graded. Ic „ 0 top of the trench and unrolling upstream. If the channel is wider than the 7. Construct the apron on zero grade with no overfill at the end. Make the Min. F Stapling pattern as overlap -'" Anchor in 6"x6" min. Trench " provided rolls, place ends of adjacent rolls in the terminal trench,overlapping Plan top of the riprap at the downstream end level with the receiving area or slightly per manufacturers and staple at 12" intervals. ti the adjacent rolls a minimum of 3 inches. Pin at I foot intervals. backfill, and below it. s recommendations. compact Unroll the RECP in the upstream direction until reaching the first 8. Ensure that the apron is properly aligned with the receiving stream p i " and preferably straight throughout its length. If a curve is needed to fit site Mtn. 6 overlap. intermittent trench. Fold the RECP back over itself, positioning the roll on ;¢, La conditions,place it in the upper section of the apron. 3 i the downstream side of the trench, and allowing the mat to conform to the 9. hum ediately after construction,stabilize all disturbed areas withvegetation 0 �- (Practices 6.10,Temporary Seeding,and 6.11,Permanent Seecii'ng). Staple overlaps trench. ear i IIII Ad II I= z `v max. 5"spacing. III!-I =,T-I Then in the RECP two layers) to the bottom of the trench, backfill and �•JII Section AA _li gi_iIIN Inspect riprap outlet structures and aftersi significant 1/2inchor greater) p ( ay ) 611i- _ = Maintenance p p p y g > o g compact. Continue up the channel (wrapping over the top of the intermittent rainfall events to see if an erosion around or below the riprap has taken lace, Bring material down to a level area, NOTES: Filter y p p p Do not stretch blankets/matting tight-allow turn the end under 4" and staple at 12" 1, Design velocities exceeding 2 ffi/sec require temporary blanlce#s, mats or similar liners to protect blanket or if stones have been dislodged. Immediately make all needed repairs to the rolls to conform to any irregularities. intervals. seed and soil until vegetation becomes established. trench) repeating this step at other intermittent trenches, until reaching the Figure 6.41c Riprap outlet protection(modified from Va Swccf. prevent further damage. upper terminal trench. References Surface Stabilization Lime, fertilize, and seed before installation. Planting 2• Grass-lined channels with design velocities exceeding 6 ft/sec should include turf reinforcement 6.10,Temporary seeding e For slopes less than 3H 1V, rolls of shrubs, trees,etc. should occur after installation. mots At the upper terminal trench, allow the RECP to conform to the trench, 6at.a 6.11,Permanent seeding i may be placed in horizontal strips. 6.15,Riprap c secure with pins or staples, backfill, compact and then bring the mat back Appendix over the top of the trench and onto the existing mat (2 to 3 feet overlap in the 8.06,Design of Riprap Outlet Protection =. downstream direction), and pin at I foot intervals across the RECP. When a Rice,C.E.,Kadavy,K.0 "Riprap Design for Pipe Spillways at t, starting installation of a new roll, begin in a trench or shingIL-lap ends of rolls -1 <TW/D<0.7" Presented at the December 13,1994International Winter 11 a minimum of 1 foot with upstream RECP on top to prevent uplifting. Place Meeting,Amerman society of Agricultural Engineers,Paper Number the outside edges of the RECP(s) in longitudinal trenches, pin, backfill, and 942541. AGENCY REVIEW ONLY Rice,C.E.and K.C.Kadav 1994,Plunge Pool Designat Submerged Pi z Compact. Spillway Outlets. Transactions of the ASAE 37(4):117-1173. g Pipe NOT FOR CONSTRUCTION Anchoring Devices-I 1 gauge,at least 6 inches length by I inch width staples FHWA. 1983. Hydralic Design of Energy Dissipaters for Culverts and TEMPORARY LINING FOR or 12 inch minimum length wooden stakes are recommended for anchoring the Channels. Hydraulic Engineering Circular Number 14. TEMPORARY/PERMANENT DIVERSION DITCH RECPtotheground. OUTLET PROTECTION Scale: Drawn by: z MTB NTS NTS NTS Drive staples or pins so that the top of the staple or pin is flush with the ground o surface. Anchor each RECP every 3 feet along its center. Longitudinal Sheet: Designed by: z overlaps must be sufficient to accommodate a row of anchors and uniform MTB ° along the entire length of overlap and anchored every 3 feet along the overlap Reviewed by: length. Roll ends may be spliced by overlapping 1 foot (in the direction of C9 of 11 MTB water flow),`with the upstream/upsl ope mat placed on top of the downstream/ c downslope RECP. This overlap should be anchored at i foot spacing across Project Number: Date: the RECP. When installing multiple Width mats heat seamed in the factory,all DDS JOB #: 2022-42 3 factory seams and field overlaps should be similarly anchored. JULY 2023 u TYPICAL FENCE SPACING CORNER BRACING CORNER BRACING 15.5 GA BARBED WIRE 10'MAX SPACING 5-10"MAX SPACING 5'-10"MAX SPACING U METAL"T"POST RAFTING AND DESIGN CORNER BRACE 6'x 4"MIN TREATED POST 6'x 4"MIN TREATED POST CORNER BRACE 4.5'MIN HEIGHT 6'x 4"MIN TREATED POST 0 o go, O 0 o�y o 0 088 ° O 6'x 4"MIN TREATED POST FILTER OF 1 INCH DIAMETER#57 °o o roo 00 0 0 0 0° STAPLE WIRE TWIST ABOVE GROUND CORNER POST p opo°p�o°Oo°o 0 0 0° T °o°° Spoo° b oo �o SERVICES, INC. WASHED STONE ° $°Odto° ob$ ° ° 00° r2 0° 0 °o oo 1"MIN FENCE STAPLE °p ° 0 O 0! °o o O ° o r o pop ° WARNING �15.5 GA BARBED WIRE CORNER POST NOTE: o° °o 1-1 °°o`�4 SILT FENCE FABRIC TO OVERLAP o° Oo° ° O o o 'd� 6728 Carbonton Road SIGN , 0 0 0°00 000 0 NAIL BRACE TO POST HARDWARE CLOTH BY 12 INCHES o° °o o O o°°Oo°Oo0 opo °O p ° o 00 Sanford, North Carolina 27330 WIRE CLIPS ° STAPLE WIRE o0 0 0 0 o Oo 0 0 1"MIN FENCE STAPLE 0 ° o o� ( DC-1 �° USE 30 PENNY NAIL MIN(4) ��o o g o o go Cop o 0 0 °° ° a� °°°pOo °° ° ° �80 0 (919) 499-8759 phone ° NOTCH POST 1"MIN FOR CORNER BRACE STEEL FENCE POST °o °�oO ° °�oO °O° ° ° 0 ° ° 0G ° draftinganddesign@ymaiLcom V MAX WIRE SPACING ° ° 15.5 GA BARBED/12.5 GA HIGH TENSILE WIRE TWIST WIRE FENCE SILT FENCE FABRIC HARDWARE CLOTH STEEL FENCE POST ON WIRE FENCE 6'METAL"T"POST ° w ON WIRE FENCE HARDWARE CLOTH 4.5'MIN HEIGHT n 2' FILTER OF 1 INCH DIAMETER# x 1"x 1"WOOD STICK PLAN VIEW USOE SILT FENCE OUTLETS ONLY WHEN ABOVE GROUND 57 WASHED STONE ° DRAINAGE AREA DOES NOT EXCEED 1/4 ACRE AND THERE IS A LOW AREA. USE AS A REPAIR INSTALLATION: POST TO BE DRIVEN OR BORED AND TAMPED 0° g ° 18 OF SILT FENCE FAILURES. $° NOTE:USE ONE SECTION OF CORNER BRACING FLOW DIRECTION ° o 0 ° AT GATES AND FENCE ENDS °° ° $' o ° o GRADE STEEL FENCE POST SET ° 1.5'MIN DEPTH EXISTING GROUND TYP �I1-111�11-III I III I ,II-I. I- - HARDWARE CLOTH MAXIMUM 2 FEET APART "-Ip 6„ WIRE FENCE ° -III-IIII III��II-I li 1.5'MIN DEPTH ° BELOW GROUND STAPLE WIRE TWIST III r BELOW GROUND ° 1"MIN FENCE STAPLE II ELEVATION VIEW 4 STRAND BARBED WIRE FENCE SIDE VIEW 11 u NITS SILT FENCE I FABRIC III I1 w� II OVERLAP OVERLAP II �� tl 12 129 I} 11 INCHES INCHES I1 it li GRADE 11 11 =1 = J = I - - --1 I _ --IINI= R=411I 1= - SEDIMENT FILTER BAG -I 1=1 I I f- i_"If-1 1 1 1=u-Iu- -�-1-1Tf;ITf 1L-1== I,I �_ - �- _- BAG SIZE BASED ON MANUFACTURER'S RECOMMENDATIONS Installation: Refer to the approved erosion control plan for location, extent, and -IIII-IIli f ff-II� IIITII IIITII �IITII I I II_ - -III=ITI� i,l LAY ON 6-12"THICK BED OF 2"-3" DIA. STONE specifications. If silt fence is not installed correctly the first time, it will have to 11=III •�=III 11=IIIIII"- "DTI 1,1 IIIIIIIIIJ� full III DISCHARGE LINE L� L� I�Ill�l,�_Ill�llil be reconstructed. Determine the exact location of the outlet before completingITI� -ITi�l NOTE: FROM PUMP DTI=111� installation of the silt fence,taking into consideration: BURY WIRE FENCE, HARDWARE CLOTH,AND FRONT VIEW SILT FENCE FABRIC 6 INCHES INTO THE PUBLIC RIGHT OF WAY TRENCH SEE PLAN l. Installation at the lowest point(s) in the fence where water will pond. Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any Q MIN.STONE DEPTH 2. Maximum allowable drainage area restriction for silt fence. required repairs immediately. Z EXISTING GRADE SEE NOTE B. Should the fabric of a sediment fence collapse, tear, decompose or become 3. Installation where the outlet is accessible for installation, maintenance and ineffective,replace it promptly. -III=ITI= removal. O -''1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1 =1I1=1I1=1I1- 1=1I1=1I1=1I1=1I I- -I I1=1I1=1I1='' Remove sediment deposits as necessary to provide adequate storage volume �/ STONE BED TO BE RELATIVELY FLAT -III=III=III=III=III=III=III=III= =III=III- -III-III-III=III=III=III=III-III for the next rain and to reduce ressure on the fence. Take care to avoid 11 -1111�111 II i 111 I1 i 11111�III 1 III�III 1 II 1 "-1 i II I I, II I 1=I I I, ,I 11=I i 1= 4. Placement of the outlet so that water flowing through it will not create an p I I \_ I FILTER erosion hazard below - avoid steep slopes below the outlet and areas undermining the fence during cleanout. 14 INSTALLATION & MAINTENANCE P P � ♦ U) FABRIC t Remove all fencing materials and unstable sediment deposits and brie the r/ 1.USE No.5 OR NO.57 STONE FOR SEDIMENT CONTROL STONE. NOTES: without protective Vegetation. Use slope drains if necessary. g eP g J area to grade and stabilize it after the contributing drainage area has been Uj 2.PROVIDE STABILIZED OUTLET TO STREAM BANK.3.WOOD PALLETS MAY BE USED IN LIEU OF STONE AND GEOTEXTILE AS ) A MINIMUM WIDTH OF CONSTRUCTION ENTRANCE PAD SHALL BE 20 FT. The silt fence outlet shall be installed in accordance with the standard detail, and properly stabtllZed. DIRECTED.ASUFFICIENT NUMBER OF PALLETS MUST BE PROVIDED the approved erosion control plan. w TO ELEVATE THE ENTIRE SPECIAL STILLING BASIN ABOVE NATURAL GROUND. B) STONE SHALL BE 2-3"WASHED STONE, 12"THICK. 0 Q 4.THESIZEANDNUMBEROFSILTBAGSSHOULDSE BASED ONTHE C) THE ENTRANCE SHALL BE MAINTAINED TO PREVENT TRACKING OR FLOW- O DEWATERING PUMP AND MANUFACTURER RECOMMENDATIONS. ING OF SEDIMENT ONTO PUBLIC RIGHTS-OF-WAY. THIS MAY REQUIRE SILT FENCE OUTLET O Z O 5,TIGHTLYSECURETHEPUMPDISCHARGETOTHESILTBAGSLEEVEWITHA PERIODIC TOP DRESSING WITH ADDITIONAL STONE AND REPAIR AND/OR M STRAP OR SIMILAR DEVICE TO PREVENT WATER/SEDIMENT FROM LEAKING CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT. NITS � WITHOUT TREATMENT. I� B.CONTROL PUMPING RATE TO PREVENT EXCESSIVE PRESSURE WITHIN THE SILT D) INSTALL PADS WHERE SHOWN ON PLANS OR OTHERWISE DIRECTED Cc BAG IN ACCORDANCE WITH THE MANUFACTURER RECOMMENDATIONS.AS THE BY ENGINEER. z BAG FILLS WITHIN SEDIMENT,REDUCE THE PUMP RATE_ O O Z 7.REPLACE THE SILT BAG WHEN ONE HALF(1)2)FULL OF SEDIMENT. LU J ' O 8.SILT BAG DEVICE MUST BE 2 SOFT FROM THE TOP OF THE STREAM BANK Z O AND WATER MUST BE DISCHARGED IN A DIFFUSE MANNER. a� 0 z t�SEDIMENT FILTER BAG CONSTRUCTION ENTRANCE PAD W O p 0 NITS NITS ce Z O Q 0� w W osVQP� SEDIMENT FENCE INSTALLATION USING THE SLICING METHOD OV m #57 STONE S�OPN Instead of excavating a trench, placing fabric and then backfilling trench, MPS GR „ sediment fence may be installed using specially designed equipment that 2.0%MIN SLOPE �\S��N`�, r inserts the fabric into a cut sliced in the ground with a disc(Figure 6.62b). s'MAx. S\-O?e 4.0%MAX SLOPE -, OVNp �- Wc' =_ T7N0 Installation 1. Specifications The base of both end posts should be at least one foot higher than the middle of the fence. Check with a level if necessary. 194 -TpA F 2. Install posts 4 feet apart in critical areas and 6 feet apart on standard applications. MIN. 12-1/2 GA. 3. Install posts 2 feet deep on the downstream side of the silt fence, and INTERMEDIATE as close as possible to the fabric, enabling posts to support the fabric from MIN. 10 GA. WIRES TEMPORARY INTERNAL SITE ROAD TYPICAL CORNER/BEND LINE WIRES upstream Water pressure. SILT FENCE FAB IC REVISIONS NITS 4. Install posts with the nipples facing away from the silt fabric. INSTALLED TO SECOND A 1.5' 5. Attach the fabric to each post with three ties,all spaced within the top S MI MIN inches of the fabric. Attach each tie diagonally 45 degrees through the fabric, GRADE cc. NTS IN with each puncture at least 1 inch vertically apart. Also, each tie should be 411 - _ __ - CLASS"B"RIP RAP positioned to hang on a post nipple when tightened to prevent sagging. I_„III_„I III II I_„III_„I I..I III_„III_„III;III III_„III_„III;III III_„III_„I I... I I, III_„III_„I I... I I, III_„III_„III;III-„I I_II I II I II I1-„III_ 12"NCDOT#5 or o 6. Wrap approximately 6 inches of fabric around the end posts and secure #57 WASHED 2 with 3 ties. _ c STONE 7S4O,o 24"MAX 7. No more than 24 inches of a 36 inch fabric is allowed above ground -I IIII I o FILTER FABRIC FILTER FABRIC F AT CENTER :III M INSTALLATION level. IIII IIII IIII IIII t 1.REMOVE ALL 8. The installation should be checked and corrected for any deviations before BERM TREES,BRUSH = 4 4 Compaction. _I i-I 1= FRONT VIEW EXISTING GROUND EXIS A SECTION A-A 9. Compaction is vitally important for effective results. Compact the soil t T/NG GROUND 1 5 immediately next to the silt fence fabric with the front wheel of the tractor, D`c A L B skid steer,or roller exerting at least 60 pounds per square inch. Compact the NOTE upstream side first,and then each side twice for a total of 4 trips. STEEL POST 1. SEE PLAN SHEET C-2 FOR WIDTH '. Place stone to the lines and dimensions shown in the plan on a filter fabric HEIGHT DETERMINED BY SIDE SLOPES. Construction p WOVEN WIRE FABRIC 2. WIDTH INDICATED ON PLAN IS BOTTOM foundation. MM Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any NOTE: 5 ecifications L=THE DISTANCE SUCH THAT POINTS SILT FENCE GEOTEXTILE FABRIC WIDTH. P A AND B ARE OF EQUAL ELEVATION required repairs immediately. DOES NOT EXCEED 1/4 ACRE AND NEVER IN a 3. SEED PER TEMPORARY/PERMANENT 2. Keep the center stone section at least 9 inches below natural ground level AREAS OF CONCENTRATED FLOW t SEEDING SCHEDULE ON SHEET C-7. W$CrC the dal-]abuts tltC channel flanks. Should the fabric of a sediment fence collapse, tear, decompose or become -USE SILT FENCE ONLY WHEN DRAINAGE AREA Maintenance �t checkdams andchannels at least weekly and after each significant(1/2 UPSLOPE 4. NATURAL VOLUNTEER VEGETATION lace itpromptly. END OF SILT FENCE NEEDS TO BE TURNED UPHILL. _ inch or greater) rainfall event and repair immediately. Clean out sediment, ineffective,rep q N o s SHALL REMAIN. 3. Extend stone at[east 1.5 feet beyond the ditch bank(Figure 6.$3b)to keep M 5. BERM ENDS SHALL BE 4:1 SLOPES LIKE straw,limbs,or other debris that could clog the channel when needed. m cutting around the ends of the check dam. Remove sediment deposits as necessary to provide adequate storage volume water fro z_ FOR REPAIR OF SILT SIDE SLOPES. D Anticipate submergence and deposition above the check dam and erosion from for the next rain and to reduce pressure on the fence. Take care to avoid FENCE FAILURES,USE o 4. Set spacing between dams to assure that the elevation at the top of the undermining the fence during cleanout. No.57 WASHED STONE. c high flows around the edges of the dam. Correct all damage immediately. If FOR ANCHOR WHEN SILcl lower darn is the same as the toe elevation of the upper dam. AGENCY REVIEW ONLY (71 VEGETATIVE BERM (TYP) significant erosion occurs between dams, additiional measures Can be taken Remove all fencing materials and unstable sediment deposits and brie the 1=III=III _ss:;;; BACKFILLTRENCH FENCE IS PROTECTING (71 g g �1 °°::;;: II OVER SILT FENCE NOT FOR CONSTRUCTION $. Protect the channel after the lowest check dam from heavyflow that could such as, installing a protective riprap liner in that portion of the channel 11 ;;;.;;. CATCH BASIN. z area to grade and stabilize it after the contributing drainage area has been 11 1I (Practice 6.31,R' 1�ee and Paved Clam3nels 1_1~ NITS cause erosion. �° properly stabilized. o I I- �- 1 6. Make sure that the channel reach above the most upstream dam Is stable. Remove sediment accumulated behind the dams as needed to prevent damage SECTION VIEW N it I 1 t to channel vegetation,allow the channel to drain through the stone check dawn, 111 1-7. Ensure that other areas of the channel,such as culvert entrances below the and prevent large flows from carrying sediment aver the dam. Add stones to , r Scale: Drawn by: MTB e check dams.are not subiect to damage or blockas7e from displaced stones. dams as needed to maintain design height and cross section. SILT FENCEI�Tr�Tr NTS c CHECK DAM NITS Sheet: Designed by: ° MTB D NITS cl cl Reviewed by: cl C 1 0 of 11 M (71 TB (71 cc c c Project Number: Date: DDS JOB#: 2022-42 3 JULY 2023 u RAFTING AND DESIGN O SERVICES, INC_ Sediment Basin# 1 Temporary biversion/Berm#®=>DA#i ® CULVERT#1 6728 Car onton Road Sanford, North Carolina 27330 CalculateFlow-RationalMethod Calculate Flow-Rational Method (919) 499-8759 phone 25-Yrstorm draftinganddesign@ymaiLcom Calculate Flow-Rational Method 25-Yr Storm Q,=CIA C= 0.80 10-Yr Storm 25-Yr Storm 1= 8.83 in/hr C6=CIA C= 0.40 Qa= Q10=CIA C= 0.30 Q2S= CIA C= 0.30 113.73 A= 16.10 ac 1= 8.83 in/hr 1= 7.92 1= 8.83 channel Slope= 0.00 Q25- 1.41 A= 0.40 ac Channel Depth= 3.50 Q10= 100.43 A= 42.27 Q25= 111.97 A= 42.27 Bottom Width= 3.00 Side Slopes= 3.00 Velocity= 2.71 Per Manning Equation 2-Yr Storm Soil Type 0 Loamy Sand Slopes= Q2 =CIA C= 0.30 ChannelLinine Pipe Diameter 18" Allowable Flow= 8.00 cfs OK 1= 6.16 Pipe Slope= 0.50% Q2- 78.11 A= 42.27 Shear Calculation T=yds y= 62Albs. dw�er ft Calculate Required Surface Area CULVERT#2 T= 0.169104lbs/ft2 5= ft/ft Temporary= NAG SC150BN Calculate Flow-Rational Method Permanent- NAG SC15OBN SA=Q25 x 435 sf/cfs Q25= 111.97 25-Yr Storm Temporary Diversion/Berm il" 2 _>DA 4 2 C6=CIA C= 0.30 SA= 48708.36 ft2 1= 8.83 in/hr Calculate Flow-Rational Method 25-Yrstorm Q25= 111.97 A= 42.27 ac Side Slopes= 3.00 :1 Qa=CIA C= 0.80 Pond Depth= 5.00 ft 1= 8.83 in/hr Per Manning Equation Qa= 139.16 A= 19.70 ac Basin Dims (Per SA) Channel Slope= 0.00 Pipe Diameter 42" Allowable Flow= 116.00 cfs OK Channel Depth= 3.50 Top= 163.00 x 326.00 = 53138 ft 2 Bottom Width= 3.00 Pipe Slope= 0.50% Weir= 157.00 x 314.00 = 49298 ft2 Side Slopes= 3. 00 Velocity= 2.9797 Bottom = 142 x 284 = 40328 ft2 Soil Type(")a Loamy Sand Slopes=0-10% Q Channel Lining z Volume Required Shear Calculation y= 62.4 1bs O VR=Ax1800 cf/ac A= 42.27 ac T yds dw.Lef 2.97 ft T= 0.185328 Ibs/ft2 s= 0.001 ft/ft VR= 76086.00 ft3 Temporary- NAG SC15OBN Permanent= NAGSC150BN Volume Proposed W V,=((Top Area+ Bottom Area)/2)xD Top= 49298.00 sf 0 Bottom= 40328.00 sf 4C O z VP= 224065.00 ft3 D= 5.00 ft � O/ z O i1f■ Basin has a Culvert Outlet 0.75 feet below top of pond. W IL cc I Q O LLI 0Z Z QO Q W p ce Z a J 0� Outlet Protection#1 W New York Method 8.06.5 Manual Pipe Diameter 18.00 " La= 5 Velocity= 4.5 ft/s W= 4 Zone= 1 Stone Diameter= Class A Outlet Protection#2 New York Method 8.06.5 Manual REVISIONS Pipe Diameter 42.00 " La= 28 Velocity= 12.16 ft/s W= 10.5 Zone= 3 Stone Diameter= Class 1 C4 c n c c C s 0 t -C 0 t c c 0 c T C Q C C 4 2 f C U f c 0 n c r c AGENCY REVIEW ONLY NOT FOR CONSTRUCTION z f 1 c Scale: Drawn by: z NTS MTB C Sheet: Designed by: ° MTB p Reviewed by: C 11 Of 11 MTB c c c Project Number: Date: DDS JOB#: 2022-42 3 JULY 2023