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HomeMy WebLinkAbout0403_AnsonLandfill_SECDrawings_20000601Iu1NIINIIYIN1II1I11IYNM11II111RI�11111111NNII1NMNIWINII1111IWNIY111l1llllnl1lllhPermit: 04-03 Name: Anson County SW Management Fac., Erosion & Sedi, Phase 1 County: Anson Shipped Date: Box: SW-11-029 Document Type: Other (0) Document Date: 6/1/2000 Division: Waste Management (WM) Sub -Division: Solid Waste (SW) Document Category: Facility (F) Document Group: Authorization or Permit (P) Description: Map:. Maps in Roll: G.) I 3 1� 71 SILT >< N N O 00 rn 0 LEACHAX STOPAW TANK 00 v / �1 w � ti CHANNEL 1 7 REACH A a r 3C0 NOTES:= f� 1. THIS PLAN DEPICTS THE E&S CONTROLS TO BE INSTALLED TO CONTROL SURFACE WATER AT THIS SITE DURING CELL 1A 1 B CONSTRUCTION. REFER TO FIGURE NOS. 7 AND 8 FOR SOIL EROSION AND SEDIMENTATION CONTROL DETAILS. % FIGURE NO. 8 PROVIDES THE CONSTRUCTION SCHEDULE / AND MAINTENANCE PLAN TO DEVELOP AND MAINTAIN THE / SITE UNTIL THE ENTIRE AREA IS PERMANENTLY STABILIZED. 2. E&S CONTROLS MUST BE CONSTRUCTED AND BE FUNCTIONAL PRIOR TO DISTURBING ANY TRIBUTARY AREAS TO THESE E&S / CONTROLS. 3. THE AREA WITHIN THE LIMIT OF EARTH DISTURBANCE IS APPROXIMATELY 35.1 ACRES. 4. AFTER FINAL SITE STABILIZATION HAS BEEN ACHIEVED, / TEMPORARY E&S CONTROLS MUST BE REMOVED. AREAS DISTURBED DURING REMOVAL OF THESE CONTROLS MUST BE \ PERMANENTLY REVEGETATED IMMEDIATELY. 5. THE CHANNELS AND SEDIMENT BASIN NO. 1 WILL REMAIN \ \ IN -PLACE AFTER THE SITE IS STABILIZED FOR STORMWATER MANAGEMENT. \ \ 6. ALL SITE SAFETY IS THE RESPONSIBILITY OF THE CONTRACTOR. THE CONTRACTOR SHALL. COMPLY WITH ALL TERMS AND CONDITIONS OF THE CONSTRUCTION DOCUMENTS INCLUDING. BUT NOT UMITED T0. ALL OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA), AND ALL OTHER LOCAL., STATE, AND FEDERAL RULES AND REGULATIONS REGARDING SAFETY AS THEY RELATE TO ALL CONSTRUCTION ACTMTIES ON SITE AS PRESENTED ON THESE PLANS. LEGEND: - 300 - SUBBASE GRADE CONTOUR SILT FENCE LIMIT OF EARTH DISTURBANCE N o RIPRAP CHANNEL ty CC � 3 SILT 7 / FENCE -' 1 WO PRINCIPLE $ SPILLWAY DROP INLET - SEDIMENT BASIN NO. 1 APRON NO. 2 EMERGENCY �s�ILtwAx_ �•�NCgR ` a � � � �GINE�Q;• ': S. 04/98 RESPONSE TO NC DENR COMMENTS �� DATE DESCRIPTION P.M. OPER. DES PROJ. NO: R97-875-686 DATE: PJH 02/24/98 \ DRN CRK 12 22 97 PROJECT: EROSION AND j ' ' SEDIMENTATION CONTROL PLAN CHK cls o2/20/98 ANSON COUNTY, NORTH CAROLINA SCALE RE/ WSA 02/24/98 SHEET TITLE: CELL 1A/1 B CONSTRUCTION PROJ. MGR. WSA 02/24/98 E&S CONTROLS �s 100 0 100 200 FELT OPER. PLAN VIEW - SHEET No. CHAMBERS WASTE SYSTEMS FIGURE 2 ALMES & ASSOCIATES INC. OF NORTH CAROLINA CONSULTING ENGINEERS DRAWING No. A SUBSIDIARY OF ALLIED SERVICES, LLC R9.7-875—E45 UP .-- i �UP tsow 0 PAO 0 to a. 16 2 31 u o � m \. 1,0 01 UP \� > �10 \ FUTU � COI J �\ N, _-- —340 50- a�a� aw a� a a 0 a O i II 1D a A �8 fir, CHAN A 11 2 7 OF OF MAI CE BUI 1�CE 0 UP FUTURE CELL/ 1E' '60 W 2 -` 7 W UP d UP 310J/ BB I� UP xx \\ / UP F /Lf, i N 21Z c� } �� /! `--► I O R N PLE 24 SPILL BARREL / ! A. )( LEGEND. 1 2 ICI P ! 2� i ((-280--- SUBBASE GRADE CONTOUR / I 8 N / ' f LIMIT OF EARTH DISTURBANCE RIPRAP CHANNEL RIPRAP APRON / ( SILT FENCE / F SEDIMENT TRAP ( I 1 1� / ill SEDIMENT % BASIN NO. 1 ' I / / / , / I n uP %�� GIN•• NOTES: ` 1. THIS PLAN DEPICTS THE CONTROLS TO BE INSTALLED TO CONTROL SURFACE WATER AT THIS SITE DURING CELL 1 D CONSTRUCTION. REFER TO FIGURE NOS. 7 AND 8 FOR SOIL EROSION AND SEDIMENTATION CONTROL DETAILS. FIGURE NO. 8 PROVIDES THE CONSTRUCTION SCHEDULE AND MAINTENANCE PLAN TO DEVELOP AND MAINTAIN THE SITE UNTIL THE ENTIRE AREA IS PERMANENTLY STABILIZED. 2. EROSION AND SEDIMENTATION CONTROLS MUST BE CONSTRUCTED AND BE FUNCTIONAL PRIOR TO DISTURBING ANY TRIBUTARY AREA TO THESE r\ f CONTROLS. THE AREA WITHIN THE LIMIT OF EARTH DISTURBANCE IS APPROXIMATELY 5.8 ACRES. / 4. AFTER FINAL SITE STABILIZATION HAS BEEN ACHIEVED, TEMPORARY EROSION AND SEDIMENTATION CONTROLS MUST BE REMOVED. AREAS DISTURBED / DURING REMOVAL OF THESE CONTROLS MUST BE PERMANENTLY REVEGETATED \ / % IMMEDIATELY. 5. THE CHANNELS AND SEDIMENT BASIN NO. 1 WILL REMAIN IN —PLACE AFTER THE SITE IS STABILIZED FOR STORMWATER MANAGEMENT. / 6. ALL SITE SAFETY IS THE RESPONSIBILITY OF THE CONTRACTOR. THE CONTRACTOR SHALL COMPLY WITH ALL TERMS AND CONDITIONS OF THE CONSTRUCTION DOCUMENTS INCLUDING BUT NOT LIMITED TO ALL OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHAI AND ALL OTHER LOCAL, STATE, AND FEDERAL RULES AND REGULATIONS REGARDING SAFETY AS \ THEY RELATE TO ALL CONSTRUCTION ACTIVITIES ON SITE AS r1Qzm ON THESE PLANS. 04/98 RESPONSE TO NC DENR COMMENTS �l \v REV. DATE DESCRIPTION P.M. bPER. / DES PROD. NO.: R97-875-686 DATE: PJH 02/24/98 DRN CRK 01 /23/98 PROJECT: EROSION AND PLAN \ � L K CLS o2 20 9s SEDIMENTATION CONTROL cH / / ANSON COUNTY, NORTH CAROLINA \ REV WSA 02/24/98 SCALE SHEETCELL 1 D CONSTRUCTION \ PROD. MGR. WSA 02/24/98 E&S CONTROLS 100 0 100 200 FEET OPER. PLAN VIEW SHEET No. L , \`� J CHAMBERS WASTE SYSTEMS FIGURE 3 ' ALMES & ASSOCIATES INC. OF NORTH CAROLINA CONSULTING ENGINEERS' DRAWING No. i a �, ' A SUBSIDIARY OF ALLIED SERVICES, LLc R97 875 E54 F, L 0 01 ui 04. /APR N �� SPILL , o� BAR L ; , - /� 2 70 IpGIPL' �-�l 4 4 LEGEND. ! —280— SUBBASE GRADE CONTOUR INL / i I — LIMIT OF EARTH DISTURBANCE IP, 0I'�4 RIPRAP CHANNEL RIPRAP APRON SILT FENCE \ \ ; SIL FEN % f / � / i f / \ LI T F RT % L"`• / \, i =r_'100:SEDIMENT TRAP _ LLI, � \ \ IS UR AN E SILT EN E BASIN ; 33.0 DIVERSION 1 ,/ r r i RE co 1 E i + it r N / SILT r / ?->ocv �f 459 0 I I I' I to Z98 310jr � 0 0° 4 / f o M Joe / / I CE 1 D ' t / /zl 32 .5 WO i d' � f i' / / i' 3° CELL sic � o 0 i / J10 3 0 12 —316 18 N 5 50 314 312 1B �► % i �� / ° / \ 1 CE NCHiAN 1 2 UP -4- UPss \ \ \ \ y \ �. 319 I — --� �t I 4� \ �.�/A �-�- .,,rM S. N 45it 000 UP 00, ,t W- u�\ \ \� ��c� °\ `1 LEACHATE ,, - ¢u ,.r �.- J ��\ .NOTES. \\ 1. THIS PLAN DEPICTS THE CONTROLS TO BE INSTALLED TO CONTROL SURFACE WATER AT THIS SITE DURING CELL 1 C CONSTRUCTION. REFER TO FIGURE ° \ � �� ` • �\ �---, \ , \.�� r � \ \\ ��� \ STORAGE TANK � �,,., i \ / , ,,--� o° / NOS. 7 AND 8 FOR SOIL EROSION AND SEDIMENTATION CONTROL DETAILS. / FIGURE NO. 8 PROVIDES THE CONSTRUCTION SCHEDULE AND MAINTENANCE I PLAN TO DEVELOP AND MAINTAIN THE SITE UNTIL THE ENTIRE �, BO \ SILT�EC \ ROU \ CHAN L 11 A \ ! / ` / / / / PERMANENTLY STABILIZED. 2. EROSION AND SEDIMENTATION CONTROLS MUST BE CONSTRUCTED AND BE FUNCTIONAL PRIOR TO DISTURBING ANY TRIBUTARY AREA TO THESE LVERT 6 100 .= \\ \ \\ / S � \ !Ile, MAINTENANCE f I ' \ / j'� ` �' / / % / \ ( � � I 3J ! / CONTROLS. WITHIN THE LIMIT OF EARTH DISTURBANCE IS APPROXIMATELY 11, 8 3� 3• ACRES. 4. AFTER FINAL SITE STABILIZATION HAS BEEN ACHIEVED TEMPORARY EROSION AND SEDIMENTATION CONTROLS MUST BE REMOVED. AREAS DISTURBED `-;- EARTH STU I �� ' uP p �' HN 10 \\ \� \�_ i'\FTNCE \ L� ` I \ UP \ c \ \ \ / DURING REMOVAL OF THESE CONTROLS MUST BE PERMANENTLY REVEGETATED 1 IMMEDIATELY. NO. 1 WILL REMAIN IN AFTER 4500 1 \ 5. THE CHANNELS AND SEDIMENT BASIN —PLACE / THE SITE IS STABILIZED FOR STORMWATER MANAGEMENT. 8. ALL SITE SAFETY IS THE RESPONSIBILITY OF THE CONTRACTOR. THE SHALL COMPLY WITH ALL TERMS AND CONDITIONS OF THE CHAN EL 8 / / �,�/ / `� FUTU o� \ \ \� U \' \ ,. \ \ / \ \ REA \\ �, ` �, � . \ � � \ \ \ j \. \ , � � CONSTRUCTION DOCUMENTS INCLUDING BUT NOT UMITED TO ALL / OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA). AND ALL OTHER LOCAL. STATE, AND FEDERAL RULES AND REGULATIONS REGARDING SAFETY AS /, CHANN U P -, // \ up)a \, \, �; i \, .. \_--�lo / r \ i � THEY RELATE TO ALL CONSTRUCTION A+CTMTIES ON SITE AS PRESENTED ON THESE PLANS. UP \ 04/98 RESPONSE TO NC DENR COMMENTS \ \FUTU \ MAN ) I �� �� � \ UP ) r � REV. DATE DESCRIPTION P.M. OPER. DES PROD. NO.. R97 875 686 DATE PJH 02/2 / Q / �j ANC- I \ \ REA \ / �: j �—� / �\ \ �` \ \\ \ / / / /, \ \ , ` \ DRN CRK 01 26 98 PROJECT: EROSION AND 1 / / L SEDIMENTATION CONTROL PLAN CHK CLS 02/20/98 ANSON COUNTY, NORTH CAROLINA 100, i \ SCALE 100 0 100 \ REV WSA 02/24/98 SHEET TITLE: CELL 1 C CONSTRUCTION 02 24 98 . MGR. WSA ROJ P / / E&S CONTROLS 200 FEET OPER. PLAN VIEW s\� 1_ SHEET No. N 7 0 / \�\, \�\ - A LMES &ASSOCIATES CONSULTING INC ENGINEERS CHAMBERS WASTE SYSTEMS OF NORTH CAROLINA A SUBSIDIARY OF ALLIED SERVICES LLC FIGURE 4 \ No. R97 875 E55 �\ A GROUND SURFACE I FINISHED TO BE REVEGETATED E /-GRADE AN D d -11 I tr ��. GRASS / LINED CHANNEL GRASS LINED TRIANGULAR CHANNEL (REFER TO CHANNEL SCHEDULE THIS SHEET) N.T.S. GROUND SURFACE r- TO BE REVEGETATED / 2 RIPRAP THICKNESS =2.25 TIMES d5o 8 OZ/SY (MIN.) GEOTEXTILE TRAPEZOIDAL i CHANNEL is I 2' ANCHOR (MIN.) TYP. d so RIPRAP RIPRAP LINED TRAPEZOIDAL CHANNEL (REFER TO CHANNEL SCHEDULE THIS SHEET) N.T.S. C/C ®r 42" HIGH (MIN.) HARDWOOD ANCHORING POST (8' MAX. C/C) --� EXIS77NG GROUND SURFACE ( yp,)_. 30" 1 42" HIGH (MIN.) HARDWOOD STAKES NOTE: STAKED STRAW BALES MAY BE USED IN PLACE OF REINFORCED WIRE MESH POLYPROPOL ENE OR 14 GAUGE STEEL) 0 SUPPORT FABRIC. 30` MIN. HEIGHT OF FILTER FABRIC ABOVE GROUND SURFACE EXTEND FILTER FABRIC 12-(MIN.) / --EXCAVATED TRENCH AS SHOWN ISOMETRIC VIEW FILTER FABRIC (30" MIN.) 3 1 GUY COMPACTED BACKFILL SOIILof !--�u-OW DETAIL "A" N.T.S. WIRE (10 GAUGE MIN.) --'\- 1" X 1" X 12" STAKES 2" (MIN.) SEE DETAIL "A" FOR FABRIC TOE ANCHORING DETAIL ELEVATION 1 SILT FENCE DETAIL J N.T.S. COMPACTED SOIL BACKFILL CHANNEL SCHEDULE CHANNEL REFERENCE DETAIL REQUIRED FLOW Q�� DESIGN FLOW QC o��s FLOW DEPTH C� DESIGN DEPTH (FT) FREEBOARD AVAILABLE (FT) DESIGN VELOCITY (�) CHANNEL LINING BOTTOM WIDTH t e t) SIDE SLOPE CHZ M CHANNEL SLOPE C�� --CHANNEL. _1-1 RIPRAP LINED--- 224.80_.. _.... 408.50 3.50 4.00 0.50 8.51 RIPRAP d50 =12" 6.0 2 c�:0o 0.022 CHANNEL 12 RIPRAP LINED TRAPEZOIDAL 41.44 45.20 2.04 2.25 0.21 2.51 RIPRAP " d 50 =6 4.0 2 0.01 TEMPORARY DIVERSION 1 GRASS UNED TRIANGULAR T13.26 22.80 1 1.52 2.00 0.48 2.85 GRASS - 2 0.02 .NOTES! 1. d50 REPRESENTS THE STONE SIZE FOR 50% OF THE STONE PLACEMENT BY WEIGHT. MAXIMUM STONE SIZE IS 1.5 TIMES d50. 0 2. TEMPORARY DIVERSION 1 SHALL BE LINED WITH A TEMPORARY CHANNEL LINING, SUCH AS NET COVERED WITH STRAW MULCH, UNTIL THE VEGETATIVE CHANNEL LINING IS ESTABLISHED AND FUNCTIONING PROPERLY. CULVERT OR CHAN--- -- -- --- - F L -o FLOW IS OVERLAND 4 APRON (REFER TO APRON SCHEDULE THIS SHEET) N.T.S. APRON SCHEDULE 11TEM TEMPORARY APRON NO. 1 APRON NO. 2 L 12.0' 13.0' Wi 6.0' 6.0 Wf 14.5' 15.0' D50 6" 6" I ALMES & ASSOCIATES. INC. CONSULTING ENGINEERS ® 04/98 RESPONSE TO NC DENR COMMENTS N REV. DATE DESCRIPTION P.M. PER DES PROJ. NO: R97-875-686 DATE: PJH 02/24/98 DRN CRK 12/22/97 PROJECT: EROSION AND SEDIMENTATION CONTROL PLAN ANSON COUNTY, . NORTH CAROLINA CHK CLS 02/20/98 REV WSA 02/24/98 SHEET TITLE: SOIL EROSION AND SEDIMENTATION CONTROL DETAILS. PROD. MGR. WSA 02/24/98 OPER. CHAMBERS WASTE SYSTEMS OF NORTH CAROLINA SUBSIDIARY OF ALLIED SERVICES, LLC SHEET No. FIGURE 7 DRAWING No. R97-875-E47 0 TABLE 2 MAINTENANCE PLAN TABLE feature Inspection Frequency Maintenance CONSTRUCTION SCHEDULE Construction Entrance Daily and after all runoff events. Remove any sediment at the surface of the The following is the anticipated sequential order of construction activities which will take stone construction entrance to prevent soil place to develop Phase 1 of the landfill and borrow areas at the Anson County Solid from tracking onto U.S. Route 74. Waste Management Facility. Proposed Channels Weekly and after all - runoff events (minimum Remove sediment/debris as necessary to and/or Diversions weekly), until the drainage areas are stabilized maintain total design depth. INSTALL SOIL EROSION AND SEDIMENTATION CONTROLS FOR THE PHASE 1 AREA AND BORROW (when there is at least a uniform, 70 percent vegetative cover established over the entire AREA CONSTRUCTION project area). Instal_ soil erosion and sedimentation controls prior to grading or earthmoving activities Sediment Basin Weekly and after all runoff events (minimum Remove sediment/debris and erform repairs - associated -with --the Phase 1 Area and Borrow Area construction. �� � weekly). as necessary. (within 24 hours to conform • with installation specifications. 1. Obtain erosion and sedimentation control plan approval and other applicable permits. Vegetation Weekly and after all runoff events (minimum Seeding, fertilizing, and mulching as required. weekly), until stabilized (when there is at (refer to the revegetation measures for more 2. Clearly delineate in the field the limits of earth disturbance and the buffer least a uniform, 70 percent vegetative cover information) area to develop the landfill and associated structures. established over the entire project area). 3. Hold a preconstruction conference at least one week prior to beginning Dust Minimum weekly. Add moisture, vegetate, or apply mulch to construction. open bare areas during dry periods. 4. Clear and grub to install the necessary erosion and sedimentation controls Temporary Control Weekly and after all runoff events (minimum Remove sediment/debris and erform repairs. to construct the landfill access road, to construct the support buildings, and to Measures and Facilities weekly), until stabilized (when there is at as necessary (within 24 hoursg to conform construct the Cell 1A/1 B area. least a uniform, 70 percent vegetative cover with installation specifications. established over the entire project area). 5. Construct Sediment Basin No. 1. 6. Install Channel 11 and Channel 12. 7. Install the outlet stabilization structures. GRADING AND CONSTRUCTION OF THE ACCESS ROAD, CELL 1A/1 B AREA,- AND BORROW AREA 8. Grade area necessary for the access road and support buildings (excavate and fill and compact as necessary). 9. Place gravel on the appropriate portion of the access road and around the support facilities. 10. Construct the maintenance building and the leachate pretreatment area and equalization area. 11. Permanently stabilize (when there is at least a uniform, 70 percent, vegetative cover established over the project area) all the disturbed areas which will not receive gravel or be covered by a building. 12. Grade the area for Cell 1A/1B area development (excavate and fill. and compact as necessary). 13. Install liner system components in the Cell 1A/1 B area. FINAL. STABRMTION OF DISTURBED AREAS 14. Re-establish permanent vegetation (uniform, 70 percent vegetative cover) for the remaining disturbed areas after construction is complete. 15. Remove silt fence after the contributing drainage area is stabilized. GRADING AND CONSTRUCTION OF THE CELL ID AREA AND BORROW AREA 16. Grade area for Cell 1 D development (excavate and fill and compact as necessary). 17. Install liner system components -in the Cell 1 D area. FINAL STABILIZATION OF DISTURBED AREAS 18. Re-establish permanent vegetation (uniform, 70 percent vegetative cover) for the remaining disturbed areas after construction is complete. 19. Remove silt fence after the contributing drainage area is stabilized. GRADING AND CONSTRUCTION OF THE CELL IC AREA AND BORROW AREA 20. Install Temporary Diversion 1. 21. Grade area for Cell 1 C development (excavate and fill and compact as necessary). 22. Install liner system components in the Cell 1 C area. FINAL STABILIZATION OF DISTURBED AREAS 23. Re-establish permanent vegetation (uniform, 70 percent vegetative cover) for the remaining disturbed areas after construction is complete. 24: Remove silt fence after the contributing drainage area is stabilized. GRADING AND CONSTRUCTION OF THE CELL 1 E AREA AND BORROW AREA 25. Grade area for Cell 1 E development (excavate and fill and compact as necessary). 26. Install liner system components in the Cell 1 E area. FINAL STABILIZATION OF DISTURBED AREAS 27. Re-establish permanent vegetation (uniform, 70 percent vegetative cover) for the remaining disturbed areas after construction is complete. 28. Remove silt fence after the contributing drainage area is stabilized. TOP EL. 268.50 �- 24" � TRASH RACK AND 3 ANTI -VORTEX DEVICE 6 0 ti 6" C-C 0 ' O O BCCMP PERFORATED 0 RISER, 16 GAGE WITH 2-2/3" X 1 /2" CORRUGATIONS O EL. - 266.75 0 1"0 HOLES (8 PER ROW) 24rO BCCMP OUTLET BARREL 16 GAGE 2-2/3" X 1 /2" EMBEDDED POURED INVERT CORRUGATIONS N 1.5' . .. :, INV. EL. 266.00 CONCRETE BOTTOM PAD EL. -w 264.5 L=W^' 3' PERFORATED RISER PIPE. BITUMINOUS COATED CORRUGATED STEEL DIAPHRAGM, 12 GAGE ANTI -SEEP COLLAR (CORRUGATIONc +ico�e•�nw� 1 VERTICAL PROJECTION (1.1') N.T.S. BITUMINOUS COATING WAS APPLIED TO OUTSIDE OF PIPE AT "?HRAGM CONNECTION )IAMETER (24") BCCMP ;ONDUIT TWO PIECE WATERTIGHT CONNECTING BAND CLAMPED AND BOLTED TO CONDUIT ANTI -SEEP COLLAR N.T.S.. PRESSURE RELIEF HOLES 16 GAGE C METAL PIPE PLAN D=36" 24"0 _ I RISER -1 - CONCENTRIC TRASH RACK AND ANTI -VORTEX DEVICE GROUND SURFACE WAS REVEGETATED 1� 3 E N.T.S. EMERGENCY SPILLWAY CONTROL SECTION N.T.S. AS -BUILT EMERGENCY SPILLWAY DIMENSIONS REM DIMENSION CREST EL. 274.0' B (FT.) 8' H (FT.) 2.0' CONTROL SECTION. SLOPE (%) 0.01 ALMES & ASSOCIATES INC. CONSULTING ENGINEERS IM DES PROD. NO: R97-875-686 DATE; PJH 02/24/98 DRN CRK 12/22/97 PROJECT: EROSION AND SEDIMENTATION CONTROL PLAN ANSON COUNTY, NORTH CAROLINA CHK CLS .02/20/98 REV SHEET TITLE: SEDIMENTATION DETAILS, CONSTRUCTION AND MAINTENANCE BASIN SCHEDULE PLAN PRQI. MGR. z - S oPER. CHAMBERS WASTE SYSTEMS OF NORTH CAROUNA SUBSIDWW OF ALUM SERVICES, L.L.0 SI'm No. FIGURE 8 ORAWM No. R97- ' -E�48