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Home My WebLink AboutNCG021049_Scanned Site Plans8_20241114 2 3 4 6 8 0 1100 CONSTRUCTION, MAINTENANCE AND INSPECTION NOTES TOP OF BERM. ELEV 838.00 zn 1\ 4 DRAINAGE AREA -j 20' WIDTH 4 I /\\ / \�, ' 4 /X�< DELINEATION scALEJ FEE�T 1. INSPECT SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 Cumulative Storage /x 'X LIMIT OF INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. DISTURBANCE ELEV 836.50 839.00 2. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN IT Ar < ACCUMULATES TO ONE-HALF THE DESIGN DEPTH. PLACED REMOVED SEDIMENT IN AN TOP OF BERM 838.00 38.00 �'/\X 0�1x N\\;\<, AREA WITH SEDIMENT CONTROLS, X 3. CHECK EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT 837.00 837.00 THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ALL NECESSARY REPAIRS EMERGENCY SPILLWAY Z- _ / TCHAINLINK FENCE 36.50 SEE DETAIL SHEET BOG-01 1 I IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE RISER AND POOL SECTION B 836.00 36.00 AREA. T �{ i ` -�I 35.50 PRINCIPAL SPILLWAY PROPOSED SITE X 835.00 CLASS 1 RIP-RAP .0 35.00 --ACCESS ROAD CID 4-1 D 0o > 834.25 CLEANOUT ELEV. EMERGENCY SPILLWAY -T 834.00 .00 'ELEV. 836.50 NON-WOVEN GEOTEXTILE FABRIC LU SEE DETAIL THIS SHEET BETWEEN ALL SOIL AND RIP-RAP. 19', ELEV. 8,�6.5 -COMPACTED FILL ON TOP OF POROUS BAFFLES 833.00 833.00 ANCHOR IN FABRIC BY RUNNING VIRGIN SOIL WITH TOP SOIL SEE DETAIL SHEET OOG-01 T -- i1I SILT FENCE ALONG FACE OF SPREADER LIP TO REMOVED. "� , >1 TOP OF FOOTER. VIRGIN GROUND 832.00 SEE DETAIL SHEET 001I \\Y\l \�<�/X�Oy\\�;/'\1<N\Y\\�;0� /X�\6\�1 NI\� 1.1 31 ELEV: 836 X A/ POND BOTTOM 831.00 ELEV: 832.00 11A-N K 830.00 < V V W PIPE 1A-N ( SEE CULVERT o\�\)' ��x x// /x�/x� A VA 0.00 OA9 0,61 1.01 1.30 1.59 1.90 2.21 2.89 SUMMARY TABLE ON SHEET OOG-005) OUTLET PROTECTION OP-201, Cumulative Storage (ac-ft) -SEE SUMMARY SHEET OOG-005 KEY IN RIP-RAP KEY IN RIP-RAP N-12 ST HDPE PIPES, CID BOTTOM OF POND SECTION A JOINTS SHALL BE SOIL TIGHT "ELEV. 833.00 EMERGENCY SPILLWAY Basin Vize DOUBLE INLETS AT LOW POINT, PROVIDE NOT TO SCALE Ellev. (Irnsf) Depth(11) Areas Cumul.lative Volume ft) INLET PROTECTION DURING CONSTRUCTION833.00 0.00 20,173 0.00 It/ I ARM ASSEMBLY - 72" OUTLET STRUCTURE WITH SKIMMER AND 50 LF OF 30" 0 HP STORM,�,1 834.013 1.00 22,098 11149 DUAL WALL PIPE, ADS OR EQUIVALENT. &34.25 1.25 22,588 0.61 �j SEE DETAILS THIS SHEET W5.00 2.00 24,079 1.01 1 B-N_� C" ENCLOSURE ""j- 835.50 2.50 25,091 130 PIPE 1B-N SEE CULVERT 4 836.00 3.00 26,116 1.59 SUMMARY TABLE ON----- x SHEET OOG-005) -4--�� OUTLET PROTECTION OP-201, 8W.50 3.50 1.90 C SEE SUMMARY SHEET OOG-005 WATER ENTRY UNIT 837.00 4.00 28,211 2-21 PROPOSED A/ PERSPECTIVE VIEW 5 no, 30,362 289 PLANT BUILDING I OUTLET PROTECTION OP-201A,,-.- AND EQUIPMENT ><SEE SUMMARY SHEET OOG-005 PVC VENT SCHEDULE 40 PVC ELBOW PIPE PVC PIPE TOP OF BERM ELEV. 838.00 PVC END CAP TOP OF BANK DIAMETER PIPE DIAME -177, -201 SEDIMENT BASIN 201 PRINCIPLE SPILLWAY WATER SURFACE I IBASIN ACCESS ROAD 30 STREAM BUFFER I Skimmer Design SB Req'd Vol (c�� 18,684 DESIGN INFORMATION PVC END CAP Desired Skimmer Drawdown Time (td)6 72 hrs SCHEDULE 40 Desired Skimmer Drawdown Rate (0d) 6,228 W/day Outlet: Sediment Basin 201 Principle Spillway, Drop Pipe 4" PVC PIPE Riser Top Elev: 835.50 ft PLAN VIEW PVC PIPE PIPE DIAMETER Skimmer Size 4.0 in Riser Length: 6.0 ft SCALE 1" 50' 1/2" HOLES IN Head on Orifice (H)5 0.333 ft Orifice Coefficient: 0.60 UNDERSIDE PVC TEE Weir Coefficient: 3.1 INSTALL COLLAR WITH CORRUGATIONS CUTOFF TRENCH ALIGNS PVC TEE 2,25" DIA, ORIFICE PLATE Culvert Length: 70.00 ft FLEXIBLE VERTICAL. COLLAR TO BE OF SAME GAGE WITH � EMBANKMENT Calculated Orifice Diameter7 2.162 in Culvert Diameter: 30.00 in AS THE PIPE WITH WHICH IT IS USED. COUPLING WITH Culvert Invert In: 832.50 ft 7 7-7-- Actual Orifice Diameter 8 2.250 in NOTES: TRANSITION TO Culvert Friction Coefficient: 0.01 7 1 1 1 BAND -EXISTING GROUND SKIMMER PIPE - 1. ALL PVC PIPES ARE TO BE SCHEDULE 40 UNLESS Actual Skimmer Drawdown Time 66 hrs Culvert Entrance Loss Coefficient: 0.90 1/2"X 2" SLOTTED OTHERWISE NOTED. FILL MATERIAL- 2 HOLES @ 8" C.C. 2' MINIMUM IF NOT 2. ALL JOINTS OF THE FLOTATION SECTION SHALL BE Discharge.- 62.37 cfs FOR 3/8"0 BOLTS - 1 " STAINLESS CUT TO BEDROCK SOLVENT WELDED. JOINTS OF SKIMMER SECTION NEED Required Discharge: 62.00 cfs -01 0� 01 1 0 STEEL STRAP + NOT BE WATER-TIGHT. 21; - OD OF PIPE 3. HDPE FLEXIBLE DRAIN PIPE IS TO BE ATTACHED TO THE I I I PIPE BARREL STRUCTURE WITH WATER-TIGHT 01 0 101110, 10 END VIEW 1 STAINLESS STEEL STRAP B CONNECTIONS. 4. SKIMMER SIZES AND ORIFICE DIAMETERS ARE CALCULATED CE SADDLE BRANCH CMP CONNECTION BASED ON NCDEQ DESIGN METHODOLOGY AND WILL BE 21 (EXTEND ADEQUATE DISTANCE FROM RISER) REVIEWED AND APPROVED BY THE ENGINEER ONCE A ONE PIECE CONNECTING BAND WELDED TO PIPE; SUITABLE EARTHEN MATERIAL SKIMMER SUPPLIER/MANUFACTURER HAS BEEN CHOSEN. W: 4' M I N. CONTINUOUS WELD BOTH COMPACTED TO 95% OF STANDARD FRONT VEW RISER BUOYANCY CALCULATION SIDES OF BAND PROCTOR MAX. DRY DENSITY WITHIN ±2% OPTIMUM MOISTURE CONTENT DEMONSTRATE ADEQUATE STABILITY BY SHOWING THE DOWNWARD FORCE IS A CUT-OFF TRENCH SKIMMER MINIMUM OF 1.25 TIMES THE UPWARD FORCE. ANTI-SEEP COLLARS NOT TO SCALE NOT TO SCALE DOWNWARD FORCE (STRUCTURE WEIGHT) > 1.25 x UPWARD FORCE (BUOYANCY) NOT TO SCALE TRASH RACK 72" CONCRETE RISER SKIMMER, SEE DETAIL- 10' TOP OF --Jm- EMERGENCY SPILLWAY, SEE DETAIL THIS WEIGHT= 15,220 lb THIS SHEET RETRIEVAL ROPE- BERM WIDTH SHEET ANCHORED IN WHERE: 6'x6' (INSIDE- THE SLOPE DIMENSION) RISER SEDIMENT 72" CONCRETE �VFREEBOARD RIISER WEIGHT= 15,220 lb RISER STRUCTURE MIN. 1' FREEBOARD TOP OF BERM. ELEV 838.00 STRUCTURE CLEANOUT GAGE WEIGHT OF CONCENTRATE BASE (LENGTH x WIDTH x DEPTH) x UNIT WEIGHT OF CONCRETE CONCRETE-----._ ------ ---0.5' DEPTH OF FLOW BASE DO 1[] 1-1 0 0110110 EMERGENCY SPILLWAY ELEV 836.50 4 SEDIMENT CLEANOUT WEIGHT OF CONCRETE BASE (8.0 ft x 8.0 ft x 2.0 ft) x 150 lb/ft' 19,200 lb 1 11101101 ]ILIE] x /Z MARK, ELEV 834.25 U110 1-1 J11011111 RISER CRESTELEV. 835.50 //\X SKIMMER, EMBANKMENT STABILIZED STRUCTURE WEIGHT= 15,220 lb + 19,200 lb = 34,420 lb SEE DETAIL WITH VEGETATION NOTES BUOYANCY= DISPLACEMENT VOLUME OF RISER x 62.4 lb/ft' THIS SHEET 3 CUT OFF TRENCH 3 OUTLET APRON BUOYANCY = 216 ft'x 62.4 lb/ft'= 13,478.4 lb Zo 30" DIA. CMP BOTTOM INV. ELEV 832.50 30" IDIA. CMP 00 DOWNWARD FORCE (STRUCTURE WEIGHT) > 1.25 x UPWARD FORCE (BUOYANCY) ------ 000 ELEV 833.00 C, 34,420 lIb > 13,478.4 lb x 1.25 34,420 lb > 16,848 lb ANTI-SEEP COLLAR 1. PORTLAND CEMENT CONCRETE (TYPE 11 RECOMMENDED) FOR THE INLET BASE CONCRETE BASE 20' EVERY-------,- SEE DETAIL THIS SHEET SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 4,000 PSI. 7.0' x 7.0'x 1.0' 20' 2. WHERE CORRUGATED ALUMINUM OR ALUMINIZED STEEL PIPE IS USED, ALL NOTES: AREAS WHERE THE PIPE IS TO BE IN CONTACT WITH CONCRETE SHALL BE PAINTED 1. FAIRCLOTH TYPE OR EQUIVALENT SKIMMER TO BE USED. WITH A BLACK BITUMINOUS ENAMEL PAINT. RISER PLAN VIEW 2. INSTALL ANTI-VORTEX PLATE IN RISER STRUCTURE. NOT TO SCALE SEDIMENT RISER BASIN NOT TO SCALE ........... PROJECT MANAGER V. HAYNES, PE PIEDMONT LITHIUM CAROLINAS, INC. C A R PIEDMONT SEDIMENT BASIN SB-201 , R� ........ CAROLINA LITHIUM PROJECT 7 "1 PLAN VIEW & PROFILE DETAIL SE 5 3/13/2024 REVISED PER DEMLR COMMENTS 4 1/23/2023 REVISED PER DEMLR COMMENTS 0 2 LITHIUM HYDROXIDE CONVERSION PLANT 3 5/31/2022 REVISED PER DEMLR COMMENTS I*N* GASTON COUNTY, NORTH CAROLINA SHEET P I E DPA NT HDR Engineering Inc.of the Carolinas 2 12/08/2021 REVISED PER DEMI-R-COMMENTS K FILENAME 01CP-13004 440 S.Church Street,Suite 1200 \�' 3/2024 1 8/27/2021 MINING PERMIT 1111111110%%\ LLVV/-\l �50 SCALE I F i E LITHIUM Charlotte, NC 28202-2075 704.338.6700 ISSUE DATE DESCRIPTION PROJECT NUMBER 10302238 SCALE 1 50' 01 CP-B004 N.C.B.E.L.S.License Number: F-0116