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HomeMy WebLinkAbout20190752 Ver 4_Seep C Interim Remediation System - 08132020_202008131 1 DRAFT - NOT FOR CONSTRUCTION oil 3 El 5 THE CH MO R COMPANY II m U E F PREPARED FOR: & Chemours TM Geosynteclo'*'r consultants of NC, P.C. 1 FAYETTEVILLE WORKS PROJECT SEEP C INTERIM REMEDIATION SYSTEM WILLIS CREEK AND CAPE FEAR RIVER CORRIDOR FAYETTEVILLE, BLADEN AND CUMBERLAND COUNTIES STATE OF NORTH CAROLINA AUGUST 2020 INDEX OF DRAWINGS DRAWING NO. DRAWING TITLE G-01 COVER SHEET G-02 NOTES AND SYMBOLS C-01 OVERALL SITE PLAN C-02 SEEP C INTERIM REMEDIATION SYSTEM PLAN C-03 SEEP C INTERIM REMEDIATION SYSTEM CONSTRUCTION DETAILS I C-04 SEEP C INTERIM REMEDIATION SYSTEM CONSTRUCTION DETAILS II C-05 PLATFORM AND LADDER STRUCTURAL DETAILS D-01 SEEP C INTERIM REMEDIATION SYSTEM PROCESS FLOW DIAGRAM SOURCE: U.S. BUREAU OF THE CENSUS VICINITY MAP SCALE: 1" = 30 MILES 22828 NC-87 FAYETTEVILLE, NC 28306 910.483.4681 ATRIUM AT BLUE RIDGE 2501 BLUE RIDGE ROAD, SUITE 430 RALEIGH, NC 27607 919.870.0576 v - SITE r IN ¢" a SOURCE: MICROSOFT CORPORATION BING MAPS 2017 LOCATION MAP SCALE: 1" = 3,000' 30% DESIGN DRAWINGS NOT FOR CONSTRUCTION 2 3 4 5 6 0 3,000 SCALE IN FEET A 08.12.20 30% DESIGN SUBMITTAL JFH CAS REV DATE DESCRIPTION DRN APP �eV,/ GeosATRIUMyn AT BLUE RIDGE 2501 BLUE RIDGE ROAD, SUITE 430 RALEIGH, NC 27607 consultants of NC, P.C. 919.870.0576 TITLE: COVER SHEET PROJECT: THE CHEMOURS COMPANY SEEP C INTERIM REMEDIATION SYSTEM SITE: FAYETTEVILLE WORKS SITE DESIGN BY: CMDS DATE: AUGUST 2020 DRAWN BY: JFH PROJECT NO.: TR0795 CHECKED BY: JWE FILE: TR0795-GO01.( REVIEWED BY: JJD DRAWING NO.: G-0 1 APPROVED BY: CAS 7 8 C u E F E 4 7 7 A G 7 O I L 0 It J V / V I L J DRAFT — NOT FOR COt4STRUCTION a �� i \ a c \ \ \ \ o FAYETTEVILLE WORKS SITE ( \ \ N 396500 SEEP C PILOT TEST LAYOUT —N— EXISTING CLEARED AREA a I 'C' 6 A WETLANDS (NOTE 4) I SEEP LEGEND a \ I FILTER BED 1 h C-03 I 40 EXISTING CONTOUR 3 N 396000 — — — — — — — — — — — EXISTING CLEARED AREA E I I \ \ PROPERTY LINE C j o I o PROPERTY LINE m 1l EXISTING ROAD EXISTING STRUCTURE 3 15p o 1 I 1 a �j G m STREAM / RIVER CONSTRUCTION ROUTE 1401 WETLANDS �13p N 395500 ° J C 1 0 a L Its a 0 0 �.. / ` 120 �\ 0 \ 0NOTES: N 395000 ' 0 —130 ° DAM 1. GRID COORDINATE SYSTEM CORRESPONDS TO NAD83, NORTH CAROLINA. 2. ELEVATIONS PRESENTED ARE IN FEET, NAVD 88. 110 �00 �2 0 ❑ " 3. TOPOGRAPHIC, ROADS, BUILDINGS, AND PROPERTY LINE INFORMATION 7p° �110 ^O 0 OBTAINED FROM FREELAND-CLINK SCALES & ASSOCIATES, INC. OF NC. SURVEY OF THE CHEMOURS FAYETTEVILLE WORKS SITE DATE 7 JANUARY 2019. ° �100 �00 0 p o LOCK 4. APPROXIMATE EXTENT OF DELINEATED WETLANDS. (WATERS OF THE UNITED STATES TECHNICAL REPORT, THE CHEMOURS COMPANY FAYETTEVILLE WORKS PROJECT: FLOW -THROUGH CELLS, SEEP C PILOT STUDY, AND REVISED SEEP A. ° 000�� Q , \ PARSONS, AUGUST 2020) 9p o d W.D. HUSKE LOCK AND DAM `80 P o a � 1 0 N 394500 �\ I b o \ 0 150 300 90 ° 1 SCALE IN FEET E A 08.12.20 30% DESIGN SUBMITTAL JFH CAS \ J 1 REV DATE DESCRIPTION DRN APP ATRIUM AT BLUE RIDGEGeosyntec`o� 2501 BLUE RIDGE ROAD, SUITE 430 N 394000 J �O o p RALEIGH, NC 919.870.0576.0576 consultants of NC, P.C. o ITITLE: PROJECT: OVERALL SITE PLAN THE CHEMOURS COMPANY SEEP C INTERIM REMEDIATION SYSTEM OLD OUTFALL 002 SITE: FAYETTEVILLE WORKS SITE 0 0 CDCDCDLn N 0 0 CD N 0 0 N 0 0 Ln /N 0 0 0 N N 90 0 0 Ln I N 1 N o 0 0 CDCD co N DESIGN BY: CMDS DATE: AUGUST 2020 DRAWN BY: JFH PROJECT NO.: TR0795 F CHECKED BY: JWE FILE: TR0795-Cl01.dwg 30 % DESIGN DRAWINGS REVIEWED BY: JJD DRAWING NO.: NOT FOR CONSTRUCTION APPROVED BY: CAS C-01 A n O A G C 11 7 0 It 1 1 2 1 3 1 4 1 5 1 6 II DRAFT - NOT FOR CONSTRUCTION Lo N Lo \ CD N W ilk m E F INLET WEIR EL = 40.85 RIPRAP ARMORED SLOPE 8.17' BOTTOM OF SLAB_ EL = 34.18 10'X10' FILTER BED (TYP OF 2) 60 MAINTENANCE PLATFORM EL = 42.35� W MODULAR BLOCK WALL W 50 (OR SHEET PILE) IL Z ---- _ O 40 T FINISHED GRADE j IN FRONT OF WALL 30 J W FILTER BED PERIMETER WALL 20 0+00 INLET WEIR EL = 40.85 + 26.67' 7.5' TOP OF FILTER BED PERIMETER WALL EL = 42.35 RIPRAP ARMORED SLOPE EXISTING GROUND — f-- — — — - TOP OF SLAB OUTLET PIPE INVERT EL = 34.85 EL = 34.79 1 +00 DISTANCE (FEET) SECTION A HORIZONTAL: 1" =20' VERTICAL: 1" =20' TOP OF FILTER BED PERIMETER WALL EXISTING EL = 42.35 GROUND - 8.17 BYPASS SPILLWAY 1--16' -EL = 42.10 — - BYPASS SPILLWAY / FLOW MEASUREMENT FLUME EL = 41.35 _BOTTOM OF SLAB FI = Rd 1 R DISTANCE (FEET) SECTION B HORIZONTAL: 1" =20' VERTICAL: 1" =20' 40 LEGEND 1+00 EXISTING CONTOUR FINISHED GRADE CONTOUR EXISTING CLEARED AREA PROPERTY LINE EXISTING ROAD EXISTING STRUCTURE STREAM / RIVER WETLANDS Fm 50 W IL Z 40 O Q 30 J L ' 20 1 +59 H 50 W IL 40 z0 H 30 J L ' 20 1 +40 NOTES: 1. GRID COORDINATE SYSTEM CORRESPONDS TO NAD83, NORTH CAROLINA. 2. ELEVATIONS PRESENTED ARE IN FEET, NAVD 88. 3. TOPOGRAPHIC, ROADS, BUILDINGS, AND PROPERTY LINE INFORMATION OBTAINED FROM FREELAND-CLINK SCALES & ASSOCIATES, INC. OF NC. SURVEY OF THE CHEMOURS FAYETTEVILLE WORKS SITE DATE 7 JANUARY 2019. 4. BYPASS SPILLWAY AND SLOPES SHALL BE ARMORED WITH 12-INCH THINK (MIN) LAYER OF RIPRAP AND UNDERLAIN WITH A GEOTEXTILE SEPARATOR. 5. MAINTENANCE PLATFORM SHALL BE SURFACED WITH A 6-INCH (MIN) LAYER OF AGGREGATE AND UNDERLAIN WITH A GEOTEXTILE SEPARATOR. 6. DISTURBED AREAS NOT SURFACED WITH AGGREGATE OR CONCRETE WILL BE SEEDED AND MULCHED. 0 20 40 SCALE IN FEET A 08.12.20 300 DESIGN SUBMITTAL JFH CAS REV DATE DESCRIPTION DRN APP Geosyntec 1/ ATRIUM AT BLUE RIDGE 2501 BLUE RIDGE ROAD, SUITE 430 RALEIGH, NC 27607 Lllt t f NC P C 919.870.0576 + + 'Lo s +mac �_�,� —� i cons an s o ,\ Lo F sit + p A 40 TITLE: 5' WIDE CONCRETE FLUME + + + + OUTLET PIPE + + + ���... SEEP C INTERIM REMEDIATION SYSTEM WITH RECTANGULAR WEIR + + + + INV. EL = 34.79 + + + + + + + + C-02 �—�,_� . PLAN �� + + + + + + + + + + + + + + + + + + + PROJECT: THE CHEMOURS COMPANY 1 10'X10' FILTER BED TYP OF 2 ROCK CHECK DAM �0 SEEP C INTERIM REMEDIATION SYSTEM C-03 \ + + + + C-03 + + + + + + + + + + + + + + + + + + v SITE: + + + + + + + + + + + + FAYETTEVILLE WORKS SITE o I DESIGN BY: CMDS DATE: AUGUST 2020 cp N Ln DRAWN BY: JFH PROJECT NO.: TR0795 ^o Ln I � CHECKED BY: JWE FILE: TR0795-C102.dwg CD 00 i WINGS I N G S REVIEWED BY: JJD DRAWING NO 3q% DESIGN D R NOT FOR CONSTRUCTION APPROVED BY: CAS C-02 1 2 3 4 5 6 1 7 8 n L I E F 1 oil DRAFT - NOT FOR CONSTRUCTION 3 .19 5 II W N E F 2" PVC BALL Vf FILTER BED WALL SCALE: 1 " = 2' FACE MOUNT 5 SAFETY RAILING (TYP) C-05 RIPRAP 6" 5' INFLUENT d 3„ o00 00 000000 �00 0°0000^ Oo STILLING BASIN 1 -14 0°°00°oa 0°0°0o°a 0 goo°poo°poo° 9 0°0000 �a00oo0000 a0 oO�0a0 00°00 o0n0 oD o d . ... •.X — 77-X - V X i:'r^.3C' 000 oo 4' O o O t. d 'a 6" CONCRETE SLAB WITH WELDED WIRE FABRIC A SECTION -03 BYPASS SPILLWAY FLOW MEASUREMENT FLUME SCALE: 1" = 2' —13' A MINIMUM DEPTH = 9" �O0 ,0 0 50 100 D00 Do 0 D O0 000 000 000 000 Do 0 000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0-0 0 -0 0 -0 0 -0-0 0 -0 0 0 0 \_[1 oC1 o C1 oC1 o C1 oC1 o C1 o C1 oC1 o C1 oC1 o C1 0 o C1 o C1 oC1 o C1 oC1 oC1 S✓ OO`b �O`b �O`b �O`b �O`b �O`b �O`b �O`b �O`b �O`b �O`b �O `b �11ID00_11 �'1f 00 00 00 00 00 00 0000 00 00 0� 0yp 21 2 o n a&_� o00 01"3OOo �O o �L3� �,�aa MAXIMUM HEIGHT = 2 GEOTEXTILE NOTES: 1. STONE CHECK DAMS SHOULD BE CONSTRUCTED USING USING NC DOT CLASS B STONE. THE UPSTREAM FACE OF THE ROCK STRUCTURE SHOULD BE COVERED WITH FINE GRAVEL (NCDOT #57 OR #5 WASH STONE) A MINIMUM OF 1 FOOT THICK TO REDUCE THE DRAINAGE RATE. 2. GEOTEXTILE SHALL BE SELECTED IN ACCORDANCE WITH AASHTO M288-96 SECTION 7.3, SEPARATION REQUIREMENTS. 2 DETAIL C-0 ROCK CHECK DAM SCALE: 1 " = 2' 8' max. standard strength fabric with wire fence CARBON BED 1 DRAIN 6' max. extra strength fabric without wire fence 3" PVC PIPE CARBON BED 2 DRAIN 3" PVC PIPE Steel post Plastic or wire ties e OFF VALVE (TYP) Wire M 18-24" fence DISCHARGE BASIN Natural DRAIN TO RIVER ;�a ground 8" PVC PIPE ;mm 8" down & 4" forward along 24" the trench Filter ifabric NOTES: 1. A FIBERGLASS GRATE WILL BE INSTALLED OVER THE INFLUENT STILLING BASIN AND TRANSFER BASIN TO PROVIDE OPERATOR ACCESS TO FLOW CONTROL VALVES AND SAMPLE LOCATIONS. SEE DRAWING C-05 FOR DETAILS 2. TRANSDUCERS WILL BE INSTALLED IN THE INLET CHAMBER AND THE EFFLUENT STILLING BASIN TO MONITOR WATER LEVELS. THE FLOW RATES THROUGH THE BYPASS SPILLWAY FLUME AND THE FILTER BED SYSTEM WILL BE CALCULATED BASED ON THE WATER LEVELS MEASURED IN THE INLET CHAMBER AND THE EFFLUENT STILLING BASIN, RESPECTIVELY. 3. COMPOSITE SAMPLERS WILL BE PLACED WITHIN THE INLET CHAMBER AND THE EFFLUENT STILLING BASIN FOR PERFORMANCE MONITORING. GRAB SAMPLES WILL ALSO BE PERFORMED AS NECESSARY, INCLUDING FROM WITHIN THE TRANSFER BASIN, TO EVALUATE BREAKTHROUGH. 4. SAFETY RAILING SHALL BE FACE -MOUNTED AND REMOVABLE. 30% DESIGN DRAWINGS NOT FOR CONSTRUCTION 1 2 3 4 5 6 Wire fence Cross -Section View Filter Steel fabric Backfill trench Natural post and compact ground thoroughly °min ° ° 8„ m°®m°m.0°m° min 24" ° ° ° ° KO'3 DETAIL C-03 SILT FENCE (SOURCE: NC DEQ) SCALE: NTS 0 2 4 SCALE IN FEET A 08.12.20 300 DESIGN SUBMITTAL JFH CAS REV DATE DESCRIPTION DRN APP Geosyntec ti ATRIUM AT BLUE RIDGE 2501 BLUE RIDGE ROAD, SUITE 430 P.C.RALEIGH, NC 27607 consultants of NC, P919.870.0576 TITLE: SEEP C INTERIM REMEDIATION SYSTEM CONSTRUCTION DETAILS I PROJECT: THE CHEMOURS COMPANY SEEP C INTERIM REMEDIATION SYSTEM SITE: FAYETTEVILLE WORKS SITE DESIGN BY: CMDS DATE: AUGUST 2020 DRAWN BY: JFH PROJECT NO.: TR0795 CHECKED BY: JWE FILE: TR0795-050l .dwg REVIEWED BY: JJD DRAWING NO.: APPROVED BY: CAS C-03 7 8 W I: L I E F 1 DRAFT — NOT FOR CONSTRUCTION oil 3 5 6 1 7 1 8 n m m I E F INLET RECTANGULAR WEIR 8" THICK REINFORCED CONCRETE WITH HAND PULL WALL WITH #4 @ 12" OC (TYP) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - INLET CHAMBER INFLUENT STILLING BASIN 8" THICK REINFORCED CONCRETE WALL WITH #4 @ 12" OC (TYP) OVERFLOW RECTANGULAR WEIR WITH HAND PULL 36" W X 24" H ADJUSTABLE (DOWNWARD OPENING) WEIR WITH GEAR ACTUATOR - - - - - - - - - - - - - - - - - - - - - 4 . d . EFFLUENT ' < .. CTII I IAI!'`_ QACIAI '•e' 26'-8" K'B SECTION Q-03 FILTER BED SECTION B SCALE: 1 " = 3' INLET MANIFOLD PIPING 2" PVC PIPE (TYP) .. .. .' d. ' . . e. U. + d. °, .. ,' . ad.. 4• d: .•. ° . e ' I • ° a. a • ; �; •. "' ° ,. <: a, :a i ♦. r r i •d.' e° d• °f N . • . . .. . . a .;.. : , . .a . O ... . .d • , Q.. ' , .. ar . ,. ., . • 'd: ' Q a .1. 0 i.: ,. ...,. .'• jj { . •d. 0.. '. . i _ Q r' • a .9' 'm ,° a .. 'r ..d <' d r •d .. . '� I e <' .. a r :; A :'4 d 4. r d 1.. : ... d' a .. . • •d' .. p TRANSFER : r • d �a d d L 4r a .. ... '9 `T .'� d. ♦. d • a..•.4 •.b° r• °i•� BASIN r .. I d'. d d � a •• y .• �d •j. d 'FI R'.BED . P ' ' a 4� • .. a' . ,A . ed •a .a .4 .. - .. .. E. .;'' i. I.. ,:' i'" ... .. ..d , a d' d , a, d% p ' I. ♦ 'a I .�.. l b I � :1. 'd' .*d 4 • d + 9' .. d' r... A. .. ... f 4. i:. .< •. . . . .. ,.' b . d .. • '..d. •4 .I. .. 14 ad 4... ° TRANSFER BASIN d' . .. a '4 . d". •e , •.I • a.' r'• •d b;a -4�� d b ' d. d•' �d• e MANIFOLD PIPING i. ° °e''' .. • 'e • d e e I e' 8 PVC TYP a p e 4 ' 4: .. a •e i 'e" .. 4 .'S 4 �• a, • ..'. b. _ .. .. d. '. ••.. x' .' I. . q d ♦ ' a" : p'. a .. ... ..a 4 b d . . C ,. .. d. d.•'• :e '.1 .. B.: ..� • .'a .. �. .:. 4 .d: a° t.. '.a:: ° , ..p • d` . .'. 1: . d d 4 . , I. 4 �� ..A. 2 9 E �GAR'BO.I�EDs1':.D. . �?P, .4 . i B e . a d 4 - • ..d d a' . °rd d .. a a ♦ e <. . °'a a m , 11 4... : P : P:.I PE C .e° , . a . .. i d . .' . d ° . ..' a a a.. d' .. :4• 'd•• d a<: — --- 4 d'° ': n. a * -** :Z� sLl °,T.. —;1—�- -: d . :.: jrs_-- -- ��,.--�-- — -- —. <� • . d .. a..., 4 .Q �,'.SL ..:d r4 • . * a, 44 . - . : - - * -� .'i . . .. . I � . . . : : . . . -� . : . .. .*. . . 4 ' . . . . .. . .. . . . T-6" 1 oil 26'-8" KT" SECTION �Q�-03 FILTER BED SECTION C SCALE: 1 " = 3' 26'-8" D SECTION C-03 FILTER BED SECTION D SCALE: 1 " = 3' 3 FACE MOUNT 5 SAFETY RAILING (TYP) C-05 8'-2" DISCHARGE BASIN DRAIN TO RIVER 8" PVC PIPE FACE MOUNT 5 SAFETY RAILING (TYP) C-05 8'-2" CARBON BED 2 DRAIN 3" PVC PIPE SHUTOFF VALVE FACE MOUNT 5 SAFETY RAILING (TYP) C-05 8'-2" T-6" FACE MOUNT 5 8" THICK REINFORCED CONCRETE WALL SAFETY RAILING WITH #4 @ 12" OC (TYP) (TYP) C-05 ..' TRANSFER <' INFLUENT d ' : BASIN . ' : STILLING BASIN ..1 . .e .e. . T8" KNIFE GATE VALVE (TYP) ". .d .A. .. t . : d I i 8" TRANSFER BASIN 4 .. MANIFOLD PIPING :-\\ .: .°d d d + 8'-2" . . *: �.*.' -La] o .. � ; '.:. " a .. a a a ' < ' 4 '. 1 ,d .d ."•,' . . * � . L . . . - . . -d b .m. . •i_ O a ,: ;, .° a .. a .P UNDERDRAIN COLLECTION SYSTEM 16' 6" PERFORATED PVC PIPE (TYP) K'E SECTION C-03 FILTER BED SECTION E SCALE: 1 " = 3' FACE MOUNT 5 8" THICK REINFORCED CONCRETE WALL OVERFLOW RECTANGULAR WEIR SAFETY RAILING `WITH #4 @ 12" OC (TYP) / WITH HAND PULL f (TYP) C-05 . ..d' .. " `d . ,4' a ` • .4 +" INFLUENT •. ..4f .°...• .r a . d ', .. ♦ •. . , 4. a.. °.j' . a " STILLING BASIN a a' I*.. d . ., d aO.. ...e +. d! . 3 ° .. 2'-6" •° .. i� ' "n' , ' � da {{ . a. _ ... t { : • j b. 4 t I °. d d d ' .e , :' '�.4 P- ; '�. a.d:. , ' p' �� 8 TRANSFER . 4 ° . . •v .. . d' d °..d . e BASIN MANIFOLD 4 d 4. •.' a • • •d e e. . p PIPING d ^• `. d , _ d .. d .. d . a'e. a .4 p '. .4' .a ad ° °. .d - 7 6 r: : 4 .d, I J' ' •':.<.". 'da i ' 4 .. .. . 4. °• a .. 'y . a i ,d e' TRANSFER e a .J. • a' d. . n - 82 .. a .. d . d : .. • BASIN •. .p ': a'. A `p " " . a .* " ,g. ♦ r .. a a , .0 4 ' '5 `d a. .. . . *A,: 44 �d 'A •a . 1' i ' ''d i' °d4. °< i'. r `'. d •d I d e j d . °'d d• .., 4. ' e b. ° i E d', ' a . I� 9 4 - • d d a • j.. d � C ' �' . '' 4': .. e <" .. : a.a 1 "d .. .. '.b' :d.: 4: p p.Q .4 <1i. .. . , d AA 6) > <• .. .<,', :4. .: A. .4L '. a♦ 4 . - a d is %d .4 ... . 1Q . :e '.d :d e:• °' d+. • 4' ... . � . UNDERDRAIN COLLECTION SYSTEM 6" PERFORATED PVC PIPE (TYP) 16' K'F SECTION C-03 FILTER BED SECTION F SCALE: 1 " = 3' NOTES: 1. FIBERGLASS GRATING SHALL BE INSTALLED OVER THE INFLUENT STILLING BASIN AND TRANSFER BASIN TO PROVIDE OPERATOR ACCESS TO FLOW CONTROL VALVES AND SAMPLE LOCATIONS. 2. PIPE PENETRATIONS THROUGH CONCRETE WALLS WILL BE SEALED WITH GROUT TO PREVENT LEAKAGE FROM CHAMBER TO CHAMBER. 3. PIPE SUPPORTS WILL BE INSTALLED TO SUPPORT PIPING AND VALVES AS NEEDED. 4. SAFETY RAILING SHALL BE FACE MOUNTED AND REMOVABLE. UNDERDRAIN COLLECTION SYSTEM 6" PERFORATED PVC PIPE (TYP) 30% DESIGN DRAWINGS NOT FOR CONSTRUCTION 4 1 5 1 6 0 2 4 SCALE IN FEET A 1 08.12.20 1 300 DESIGN SUBMITTAL JFH CAS REV DATE I DESCRIPTION DRN APP Geosyntec'/ ATRIUM AT BLUE RIDGE 2501 BLUE RIDGE ROAD, SUITE 430 RALEIGH, NC 27607 consultants of NC, P.C. 919.870.0576 TITLE: SEEP C INTERIM REMEDIATION SYSTEM CONSTRUCTION DETAILS II PROJECT: THE CHEMOURS COMPANY SEEP C INTERIM REMEDIATION SYSTEM SITE: FAYETTEVILLE WORKS SITE DESIGN BY: CMDS DATE: AUGUST 2020 DRAWN BY: JFH PROJECT NO.: TRO795 CHECKED BY: JWE FILE: TRO795-0502.dwg REVIEWED BY: JJD DRAWING NO.: C-04 APPROVED BY: CAS 7 1 8 n L I� J E F E 4 7 7 A G 7 O I L 0 It J V / V E 4 7 7 A G 7 O I L 0 It J V / V