TECHNICAL MEMORANDUM
|
|
- Gary Walsh
- 6 years ago
- Views:
Transcription
1 FOR INTERNAL DISCUSSION PURPOSES ONLY TECHNICAL MEMORANDUM TO: Augusta Resource Corp. ATTENTION: Jamie Sturgess FROM: Troy Meyer Project Manager, Vector Colorado LLC (Vector) DATE: June 5, 2006 SUBJECT: Conceptual Heap Leach Pad Design Layout PROJECT #: Rosemont Mine / General As requested by Augusta as part of the Preliminary Economic Assessment for the Rosemont Mine, this report presents conceptual design and cost estimates for the development of the Heap Leach Pad proposed for the Project. The conceptual design work for this report was requested by Augusta to determine the general level of pad layout for a +/-35% cost estimate. The preliminary general facilities arrangement for the project is presented on Figure 1. The leach pad layout is shown on Figure 2 with a typical section and details shown on Figure 3. An Excel spreadsheet of calculations for approximate pad tonnage limits and lift placement time for pad startup and expansion siting purposes is shown on Table Background The Rosemont project site lies in a high, sparsely populated intermountain area approximately 35 miles southeast of Tucson, Arizona on the east slope of the Santa Rita Mountains. Access to the site is via Highway 83 which connects Interstate 10 with the town of Sonoita. Augusta controls a large portion of the site including the Hidden Valley Ranch and Rosemont Ranch. The Coronado National Forrest is custodian of much of the slopes of the Santa Rita Mountains. Rosemont Heap Leach Conceptual Design Page 1
2 Vector Colorado Technical Memorandum Page 2 FOR INTERNAL DISCUSSION PURPOSES ONLY 1.2 Site Visit Troy Meyer, P.E. of Vector visited the Rosemont property March 8 through 9, 2006 to perform site reconnaissance and familiarize Vector with the proposed facility locations, site features, surficial geology and soils. Photographs taken during this site visit are presented in Attachment A. 2.0 Leach Pad Siting The general leach pad siting location was determined by Vector, Augusta and WLR Consulting as part of the overall mine and waste rock dump layout as shown on Figure 2. Ore production and process flows for conceptual siting purposes were discussed with Washington Group International (WGI) to be 11,000 tons per day (tpd) with 3,100 gpm flow to the PLS flow and recycle flow from a mid-grade PLS pond of 3,857 gpm. The preliminary design incorporates a raffinate bleed rate of 1,500 gpm to agitation leach and a raffinate pond flow of 4,600 gpm resulting in an overall total application rate of 6,957 gpm including recycle (see Table 1). Pad drainage toward the pit was preferred for optimizing waste rock layout around the pad and associated process ponds and for closure drainage planning. The total ultimate ore tonnage is currently planned at approximately 60 million tons. The pad site will require significant grading to achieve this configuration with initial grading via cut/fill operations and borrow from the nearby pit area. Subsequent expansion pad grading can then be performed by controlled waste rock placement. The drain fill for the pad overliner system likely will include selected durable crushed rock from the pit overburden supplemented with closely spaced 3 inch diameter perforated drain pipes. 3.0 Ore Stack Layout The ore stacking sequence assumed approximate 25 ft ore lifts stacked in 10 lifts to the 250 ft heap height at overall 2H:1V side slopes. A conceptual cross section of the pad and ore stack is shown on Figure 2. The ore tonnages and ore lift times are approximate and presented on Table 1 attached. The Phase I pad can accommodate approximately 17.3 mt (4.3 years of production at 11,000 tpd) to the 125 ft height. The Phase II pad will accommodate approximately 21.5 mt (5.3 years of production) to the 125 ft height with the remaining tonnage stacked over the entire pad area to the 250 Rosemont Heap Leach Conceptual Design
3 Vector Colorado Technical Memorandum Page 3 FOR INTERNAL DISCUSSION PURPOSES ONLY height. An ore density of 1.6 tons per cubic yard was assumed for the conceptual layout. 4.0 Conceptual Pad Design 4.1 General The startup pad construction will include the site grading fill for controlled drainage to the collection ditch and ponds, perimeter and interior pad cell berms as needed, the pad drain fill cover, the drain pipes within the drain fill, and the temporary diversion ditch uphill of the pad limits. The state of practice composite pad, collection ditch and pond liner systems are the major cost components for the startup pad. The intermediate Phase II expansion pad will require an additional downhill collection ditch but will not require additional pond liner. The ultimate heap stack above the startup and expansion pad heaps will require minimal additional pad costs. 4.2 Startup Pad The startup (Phase I) and Phase II pad areas are about 3.1 million sq. ft. each and will include 60 mil LLDPE pad liner. The downhill collection ditch tie-in to the pad toe berm is about 35 ft wide by 1390 ft long at about 48,000 sq ft of 80 mil HDPE liner. The liner system will include a geosynthetic clay liner (GCL) underlying the geomembrane to form a double lined pad. The process pond will be double lined and the storm overflow will be single lined with an 80 mil HDPE top liner and the process ponds (PLS and midgrade) bottom liner will be 60 mil LLDPE liner with geonet leak detection between liners. The process pond may include netting or bird balls for bird protection. The downhill toe site grading for the ultimate 250 ft ore stack will require about a 375 ft of textured geomembrane liner for adequate slope stability based on previous experience. The site grading volume for Phase I startup pad is about 1.7 million cubic yards (cy) of cut to fill and 630,000 cy of fill from borrow without considering any bulkage or shrinkage from borrow to fill conditions. Future design may allow optimization of the pad layout with respect to grading costs, however this is thought to represent a conservative estimate of the required grading. The temporary uphill diversion channel south of the pad is about 2100 ft long and could be eliminated once waste rock is placed in this area. The permanent uphill diversion Rosemont Heap Leach Conceptual Design
4 Vector Colorado Technical Memorandum Page 4 FOR INTERNAL DISCUSSION PURPOSES ONLY channel west of the pad is about 5900 ft long. The diversions are likely less than 3 ft in depth in a V ditch cut along a 0.5% contour grade. 4.3 Expansion Pad The Phase II expansion pad costing will include additional 10 million cy pad grading fill which was assumed to be waste rock placed and compacted by mine haul trucks. The downhill collection ditch tie-in to the pad toe berm is about 35 ft wide by 3640 ft long (including the northern ditch) for about 127,400 sq ft of 80 mil HDPE liner. The liner system will include a geosynthetic clay liner (GCL) underlying the geomembrane to form a double lined pad. Lump sump costs were estimated for diversion ditches, perimeter and interior berms, sumps, pumps and pipelines. Raffinate pond construction costs were not estimated and were assumed to be included in work by others for the SX/EW plant. Unit rate or lump sump cost assumptions for this conceptual design estimate are included in Table 2 attached. Attachments: Table 1 Ore Stack Tonnage Estimates Table 2 Quantities and Cost Estimate Figure 1 General Facilities Arrangement Figure 2 Leach Pad Layout Figure 3 Leach Pad Sections and Details Rosemont Heap Leach Conceptual Design
5 TABLE 1 - ORE STACK TONNAGE ESTIMATE PROJECT: ROSEMONT PROJECT DATE: APR 2006 PROJECT # ORE PRODUCTION: 11,000 TONS/DAY LEACH CYCLE TIME: 93 DAYS ORE HEAP SLOPE: 2 H TO 1 V ACTIVE AREA: 688,889 SQUARE FT ORE DRY DENSITY: 1.6 TONS/CUBIC YARD APPLICATION RATE: GPM/SF LEACH RATIO: 3.8 TON SOLUTION/TON ORE TOTAL APPLICATION FLOW: 6,957 GPM FLOW TO HIGH GRADE POND: 3,100 GPM (from WGI) RECYCLE FROM MID-GRADE POND: 3,857 GPM RAFFINATE BLEED TO AGITATION LEACH: 1,500 GPM (from WGI) RAFFINATE POND FLOW: 4,600 GPM ORE LIFT BOTTOM BOTTOM TOP TOP LIFT TOP LIFT LIFT ACCUM. ACCUM. LIFT ACCUM. ACCUM. NUMBER LENGTH1 LENGTH2 LENGTH1 LENGTH2 AREA HEIGHT VOLUME VOLUME TONNAGE TIME TIME TIME (#) (FT) (FT) (FT) (FT) (SQ FT) (FT) (CU FT) (CU FT) (TONS) (DAYS) (DAYS) (YRS) Starter Pad 1 2,300 1,410 2,200 1,310 2,882, ,562,500 76,562,500 4,537, ,200 1,310 2,100 1,210 2,541, ,787, ,350,000 8,554, ,100 1,210 2,000 1,110 2,220, ,512, ,862,500 12,080, , ,000 1,110 1,900 1,010 1,919, ,737, ,600,000 15,146, , ,900 1,010 1, ,638, ,462, ,062,500 17,781, , Expansion Pad(s) 1 Expansion Phases 1 2,300 1,410 2,200 1,410 3,102, ,312,500 79,312,500 4,700, , ,200 1,410 2,100 1,410 2,961, ,787, ,100,000 9,191, , ,100 1,410 2,000 1,410 2,820, ,262, ,362,500 13,473, , ,000 1,410 1,900 1,410 2,679, ,737, ,100,000 17,546, , ,900 1,410 1,800 1,410 2,538, ,212, ,312,500 21,411, , Ultimate Expansion Pad 1 1,800 2,320 1,700 2,220 3,774, ,332,624 99,332,624 5,886, , ,700 2,220 1,600 2,120 3,392, ,532, ,865,170 11,192, , ,600 2,120 1,500 2,020 3,030, ,232, ,097,625 15,946, , ,500 2,020 1,400 1,920 2,688, ,432, ,529,971 20,179, , ,400 1,920 1,300 1,820 2,366, ,132, ,662,188 23,920, , Total Tons 63,113,
6 TABLE 2 - QUANTITIES AND COST ESTIMATE Rosemont Heap Leach and Site Civil Estimated Costs based on Conceptual Designs FOR INTERNAL DISCUSSION ONLY Description Unit Quantity Unit Cost Cost Comments Phase I Leach Pad and Process Ponds Pond Pad Clearing and Grubbing Acre 259 $1,000 $259,412 Heap and Pond Foundation Preparation (Cut to Fill) yd 3 1,744,000 $0.80 $1,395,200 Includes estimate for perimeter fill to provide possitive drainage to diversion Heap and Pond Foundation Preparation (Fill from Borrow) yd 3 629,000 $1.20 $754,800 Assumes borrow source is within 1/2 mile of the pad Diversion Ditches lump sum 1 $250,000 $250,000 Approx. 8000' v-ditch 2' deep Perimeter & Interior Berms and Ditches lump sum 1 $150,000 $150,000 18' wide perimeter berms and 25' wide permiter ditches Heap Geomembrane Liner ft 2 3,243,000 $0.45 $1,459, mil LLDPE Perimeter Ditch Liner ft 2 49,000 $0.45 $22, mil HDPE Heap Liner Bedding (GCL) ft 3 3,243,000 $0.40 $1,297,200 Assumes fill can be compacted for suitable surface Pad Drain Piping ft 2 3,243,000 $0.10 $324,300 3" dia perforated secondary pipes and 6" perforated primary pipes Drain Cover Fill (2ft thickness crushed rock) yd 3 240,222 $5.00 $1,201,111 Assumes durable rock is available from pit Pregnant Solution Pond (PLS) Excavation yd 3 111,000 $2.20 $244,200 Assumes soil or rippable rock Pregnant Solution Pond Liner (Double) ft 2 135,000 $0.90 $121, mil HDPE top liner, 80 mil LLDPE bottom liner Pregnant Solution Pond Liner Bedding (GCL) ft 2 135,000 $0.40 $54,000 Assumes excavation can be compacted for suitable surface Mid Grade PLS Pond Excavation yd 3 100,000 $2.20 $220,000 Assumes soil or rippable rock Mid Grade PLS Pond Liner (Double) ft 2 125,000 $0.90 $112, mil HDPE top liner, 80 mil LLDPE bottom liner Mid Grade PLS Pond Liner Bedding (GCL) f t2 125,000 $0.40 $50,000 Assumes excavation can be compacted for suitable surface Leak Detection Geonet and Sumps lump sum 1 $100,000 $100,000 Pumps and Pipelines lump sum 1 $750,000 $750,000 Includes PLS and raffinate systems Stormwater Pond Excavation yd 3 268,000 $2.20 $589,600 Assumes soil or rippable rock Stormwater Pond Liner ft 2 298,000 $0.45 $134, mil HDPE liner Stormwater Pond Bedding (GCL) ft 2 298,000 $0.40 $119,200 Assumes excavation can be compacted for suitable surface Subtotal $9,608,523 Phase II Leach Pad Expansion Heap Foundation Preparation (Compaction Only) yd 3 9,963,000 $0.20 $1,992,600 Assumes waste rock fill will be supplied by the Mine and compacted by haul trucks Perimeter & Interior Berms lump sum 1 $150,000 $150,000 18' wide perimeter berms and 25' wide permiter ditches Heap Geomembrane Liner ft 2 3,243,000 $0.45 $1,459, mil LLDPE Perimeter Ditch Liner ft 2 127,400 $0.45 $57, mil HDPE Heap Liner Bedding (GCL) ft 3 3,243,000 $0.40 $1,297,200 Assumes fill can be compacted for suitable surface Pad Drain Piping ft 2 3,243,000 $0.10 $324,300 3" dia perforated secondary pipes and 6" perforated primary pipes Drain Cover Fill (2ft thickness crushed rock) yd 3 240,222 $5.00 $1,201,111 Assumes durable rock is available from pit Subtotal $6,481,891 TOTAL HEAP LEACH $16,090,415
7
8
9
10 APPENDIX A SITE PHOTOS
11 Rosemont Project Appendix A - Page 1 Tailings Facility Siting Study A_Site Photos_Heap Leach.doc Barrel Canyon Area Near proposed heap leach site Barrel Canyon Basin near top of basin looking north
12 Rosemont Project Appendix A - Page 2 Tailings Facility Siting Study A_Site Photos_Heap Leach.doc Arcosic near surface soils in Barrel basin Typical rocky ground surface at Rosemont site
Technical Memorandum
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum To: Joel Carrasco From: Monica Salguero Company: Tetra Tech Date: August 10, 2010
More informationRun-on and Run-off Control System Plan
Run-on and Run-off Control System Plan SWEPCO John W. Turk, Jr. Power Plant Fulton, Arkansas Permit No. 0311-S3N-R1 AFIN: 29-00506 October 2016 Terracon Project No. 35167133 Prepared for: SWEPCO 3711 Highway
More informationTechnical Memorandum Sycamore Tailings and Barrel Waste Alternative Stormwater Assessment
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum Sycamore Tailings and Barrel Waste Alternative Stormwater Assessment To: Kathy
More informationTechnical Memorandum
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum To: Kathy Arnold From: Ronson Chee Company: Rosemont Copper Company Date: January
More information2015 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY INDEPENDENCE PLANT CLASS 3N LANDFILL PERMIT NO S3N-R2 AFIN:
2015 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY INDEPENDENCE PLANT CLASS 3N LANDFILL PERMIT NO. 0200-S3N-R2 AFIN: 32-00042 JANUARY 15, 2016 ENTERGY INDEPENDENCE PLANT CLASS 3N LANDFILL 2015 ANNUAL ENGINEERING
More informationTechnical Memorandum Barrel Only Alternative Stormwater Assessment
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum Barrel Only Alternative Stormwater Assessment To: Kathy Arnold From: David R.
More informationDetails of the Proposed Action
Details of the Proposed Action Proposed Action This alternative is based on the proposed Plan of Operations submitted to the Forest Service on June 4, 2010 by Shoshone Silver/Gold Mining Company for the
More information2017 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY INDEPENDENCE PLANT CLASS 3N LANDFILL PERMIT NO S3N-R2 AFIN:
217 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY INDEPENDENCE PLANT CLASS 3N LANDFILL PERMIT NO. 2-S3N-R2 AFIN: 32-42 JANUARY 17, 218 217 Landfill Inspection Report Entergy Independence Plant Class 3N
More informationBioreactor Landfill Design
Bioreactor Landfill Design Timothy Townsend, PhD, PE Department of Environmental Engineering Sciences University of Florida ttown@ufl.edu Bioreactor Landfill Design Modern landfill design entails many
More informationTechnical Memorandum Barrel and McCleary Alternative Stormwater Assessment
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum Barrel and McCleary Alternative Stormwater Assessment To: Kathy Arnold From: David
More informationMOUNT POLLEY MINING CORPORATION MOUNT POLLEY MINE REPORT ON FEASIBILITY DESIGN OF TEST HEAP LEACH PAD (REF. NO. VA /15-2) EXECUTIVE SUMMARY
Knight Piésold CONSULTING MOUNT POLLEY MINING CORPORATION REPORT ON FEASIBILITY DESIGN OF (REF. NO. VA101-00001/15-2) EXECUTIVE SUMMARY MPMC is currently mining the Bell and Wight Pits with the tailings
More informationBrickhaven No.2 Mine Tract A Structural Fill
CCR Compliance Supplement: Closure and Post-Closure Plan Brickhaven No.2 Mine Tract A Structural Fill Charah, Inc. Moncure, NC July 2015 NOTE: This plan is intended to replace the Closure and Post-Closure
More informationVISUAL SITE INSPECTION REPORT
VISUAL SITE INSPECTION REPORT - 2016 SOUTHERN INDIANA GAS AND ELECTRIC A. B. BROWN GENERATING STATION TYPE III RESTRICTED WASTE LANDFILL WEST FRANKLIN, IN ATC PROJECT NO. 170LF00318 DECEMBER 20, 2016 PREPARED
More informationClosure Plan Limited Purpose Landfill TransAlta Centralia Mine
Closure Plan Limited Purpose Landfill TransAlta Centralia Mine Prepared for TransAlta Centralia Mining LLC December 5 East Front Street Suite Boise, Idaho 87 /6/5 This document was prepared under direct
More informationCCP Annual Inspection Report
CCP Annual Inspection Report Brickhaven No. 2 Mine Tract A Structural Fill DWM Permit 1910, DEMLR Permit 19-25 Charah, Inc. Moncure, North Carolina October 2016 This page intentionally left blank. Charah,
More information2015 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY WHITE BLUFF PLANT CLASS 3N LANDFILL PERMIT NO S3N-R3 AFIN:
2015 ANNUAL ENGINEERING INSPECTION REPORT ENTERGY WHITE BLUFF PLANT CLASS 3N LANDFILL PERMIT NO. 0199-S3N-R3 AFIN: 35-00110 JANUARY 15, 2016 ENTERGY WHITE BLUFF PLANT CLASS 3N LANDFILL 2015 ANNUAL ENGINEERING
More informationLeachate Management Leachate Control and Collection
Leachate Management Leachate Control and Collection Leachate Collection Sanitary landfills have leachate collection and removal system above liner At un-lined landfills and dump sites Perimeter Ditch -
More informationRosemont Copper Project Dual Phase Heap Leach Facility
Rosemont Copper Project Dual Phase Heap Leach Facility Technical Specifications Prepared for: 4500 Cherry Creek South Drive, Suite #1040 Denver, Colorado 80246 Phone: (303) 300-0138 Fax: (303) 300-0135
More informationMuskeg River Mine Dedicated Disposal Area (DDA) Plan for In-pit Cell 1
Muskeg River Mine Dedicated Disposal Area (DDA) Plan for In-pit Cell 1 Updated: November 2010 Directive 74 Appendix C Requirement Approval: 8512D Submitted to SHELL CANADA ENERGY MRM DDA PLAN-UPDATE NOV
More information2015 ANNUAL ENGINEERING INSPECTION REPORT PLUM POINT ENERGY STATION CLASS 3N LANDFILL PERMIT NO S3N AFIN:
2015 ANNUAL ENGINEERING INSPECTION REPORT PLUM POINT ENERGY STATION CLASS 3N LANDFILL PERMIT NO. 0303-S3N AFIN: 47-00461 JANUARY 15, 2016 PLUM POINT ENERGY STATION CLASS 3N LANDFILL 2015 ANNUAL ENGINEERING
More informationInspection Report. David Burton, Facility Manager (NRG Indian River Generating Station)
Inspection Report To: From: David Burton, Facility Manager (NRG Indian River Generating Station) Richard Southorn, P.E., P.G., CPSWQ Re: Indian River Landfill Annual CCR Unit Inspection Report No. 2 Inspection
More informationTechnical Memorandum
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum To: Kathy Arnold From: Ronson Chee Company: Rosemont Copper Company Date: January
More informationCCP Annual Inspection Report
CCP Annual Inspection Report Brickhaven No. 2 Mine Tract A Structural Fill DWM Permit 1910, DEMLR Permit 19-25 Charah, Inc. Moncure, North Carolina February 2018 This page intentionally left blank. Charah,
More information(Instructions and explanations of bid items and sources of unit costs are provided on the back of this page.)
CLOSURE COST ESTIMATE WORKSHEET FOR MSW LANDFILL FORM 1 OWNER: TOTAL PERMITTED AREA: AREA CURRENTLY OPEN: Total Volume of Site: LARGEST AREA TO EVER BE OPEN AT ANY TIME: (use this area for estimating closure
More informationTechnical Memorandum Mine Plan of Operations Stormwater Assessment
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum Mine Plan of Operations Stormwater Assessment To: Kathy Arnold From: David R.
More informationHigh Density Polyethylene (HDPE) Lined Evaporation Ponds
High Density Polyethylene (HDPE) Lined Evaporation Ponds Presented by: Neil Nowak, PE Phone: 303-221-1719 Email: nnowak@scsengineers.com Website: scsengineers.com TOPIC OF PRESENTATION: Use of High Density
More informationDecember 19, GEI Project No Mr. Tim Muehlfeld, P.E. WEC Business Services, LLC 333 W. Everett Street, A231 Milwaukee, Wisconsin 53203
Consulting Engineers and Scientists December 19, 1 GEI Project No. 115 Mr. Tim Muehlfeld, P.E. WEC Business Services, LLC W. Everett Street, A1 Milwaukee, Wisconsin 5 Re: Landfill Inspection Report We
More informationUpland Landfill Waste Discharge Application 7295 Gold River Highway Campbell River, British Columbia
Upland Landfill Waste Discharge Application 7295 Gold River Highway Campbell River, British Columbia Upland Excavating Ltd. Engineering Consultant: GHD Limited Presentation Agenda Project Background Site
More informationTechnical Memorandum
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum To: Kathy Arnold From: Greg Hemmen, P.E. Company: Rosemont Copper Company Date:
More informationAbandoned Mine Waste Repositories: Site Selction, Design, and Cost
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Bureau of Land Management Papers U.S. Department of the Interior 2003 Abandoned Mine Waste Repositories: Site Selction,
More informationLANDFILL CLOSURE PLAN. Submitted To: Dominion Chesapeake Energy Center 2701 Vepco Street Chesapeake, Virginia 23323
LANDFILL CLOSURE PLAN Chesapeake Energy Center Ash Landfill - Permit #440 Closure Plan Submitted To: Dominion Chesapeake Energy Center 2701 Vepco Street Chesapeake, Virginia 23323 Submitted By: Golder
More informationHigh Density Polyethylene (HDPE) Lined Produced/Frac Flowback Water Evaporation Ponds
IPEC 23 Petroleum Environmental Issues & Solutions in Exploration, Production, Refining November 8-10, 2016 New Orleans, LA Hotel Monteleone High Density Polyethylene (HDPE) Lined Produced/Frac Flowback
More informationAttachment D-1: Civil/Structural Scope of Work
Attachment D-1: Civil/Structural Scope of Work Project: Location: Targa Sound Renewable Fuels Project Tacoma, WA Prepared by: NORWEST ENGINEERING Consulting Engineers 4110 N.E. 122 nd Avenue, Portland,
More informationIntended Construction Sequence East Brine Pond
Intended Construction Sequence East Brine Pond 1) Stabilize Construction Entrance 1 Use Existing < 1.0 2) Install Silt Fence Around Planned Disturbance 1 < 1.0 3) Construct Sediment Trap 1 < 1.0 4) Construct
More informationLESSONS LEARNED FROM A LANDFILL SLOPE FAILURE INVOLVING GEOSYTNTHETICS
LESSONS LEARNED FROM A LANDFILL SLOPE FAILURE INVOLVING GEOSYTNTHETICS Virginia L. Wilson Environmental Engineer Ohio Environmental Protection Agency Division of Solid & Infectious Waste Northeast District
More informationVISUAL SITE INSPECTION REPORT 2018
VISUAL SITE INSPECTION REPORT 2018 SOUTHERN INDIANA GAS AND ELECTRIC A. B. BROWN GENERATING STATION TYPE III RESTRICTED WASTE LANDFILL WEST FRANKLIN, IN ATC PROJECT NO. 170LF00614 January 9, 2019 PREPARED
More informationNICO Tailings and Mine Rock Co-disposal Facility (CDF) Design Concept
NICO Tailings and Mine Rock Co-disposal Facility (CDF) Design Concept Open pit and underground mine The project has 31 Mt of ore reserve Ore to be processed at a rate of 4,650 t/d Life of mine is 20 years
More informationMr. Michael Malone CPS Energy 145 Navarro Street San Antonio, Texas Project No
Environmental Resources Management January 13, 2017 Mr. Michael Malone 145 Navarro Street San Antonio, Texas 78205 Project No. 0352436 CityCentre Four 840 West Sam Houston Parkway North, Suite 600 Houston,
More informationUPPER MISSISSIPPI RIVER COMPREHENSIVE PLAN
UPPER MISSISSIPPI RIVER COMPREHENSIVE PLAN APPENDIX D COST ESTIMATES Prepared by the U.S. Army Corps of Engineers Rock Island, St. Louis, and St. Paul Districts March 2008 UPPER MISSISSIPPI RIVER COMPREHENSIVE
More informationBowling Green, Kentucky Stormwater Best Management Practices (BMPs) Sediment Management Practices (SMPs) Activity: Temporary Inlet Protection (TIP)
Bowling Green, Kentucky Stormwater Best Management Practices (BMPs) Sediment Management Practices (SMPs) Activity: Temporary Inlet Protection (TIP) SMP-11 PLANNING CONSIDERATIONS: Design Life: 1 yr Acreage
More information2016 ANNUAL STRUCTURAL STABILITY INSPECTION REPORT
Prepared for: FORT ARMISTEAD ROAD LOT 15 LANDFILL, LLC 3601 Fort Armistead Road 21226 2016 ANNUAL STRUCTURAL STABILITY INSPECTION REPORT Per Requirements of 40 CFR 257.84(b)(2) Prepared by: 10211 Wincopin
More informationWELSH POWER PLANT ASH LANDFILL. Run-on and Run-off Control System Plan
WELSH POWER PLANT ASH LANDFILL Run-on and Run-off Control System Plan SEPTEMBER 27, 2016 PREPARED BY: MTG TEXAS FIRM REGISTRATION NUMBER: 354 MTG PROJECT NUMBER: 167003 WELSH POWER PLANT - ASH LANDFILL
More informationSuggested Stormwater Management Practices For Individual House Lots
Suggested Stormwater Management Practices For Individual House Lots These practices are necessary to satisfy the water quantity and water quality criteria of the Rappahannock Stormwater Ordinance. These
More informationCoal Combustion Product Risk Assessment Using a Probabilistic Cost Modeling Approach
2015 World of Coal Ash (WOCA) Conference in Nasvhille, TN - May 5-7, 2015 http://www.flyash.info/ Coal Combustion Product Risk Assessment Using a Probabilistic Cost Modeling Approach Ryan Baeten, PE 1
More informationJacobi, Toombs, and Lanz, Inc.
Area 5: Blackiston Mill Road at Dead Man's Hollow Flooding Assessment Jacobi, Toombs, and Lanz, Inc. This document summarizes an assessment of drainage and flooding concerns and provides recommendations
More information0 TRC. Closure Plan for CCR Surface Impoundments. Clover Power Station, Clover, Virginia. October 2016
0 TRC Closure Plan for CCR Surface Impoundments Clover Power Station Clover, Virginia October 2016 Prepared For Virginia Electric and Power Company R. Kent Nilsson, P.E. Nakia W. Addison Senior Engineer
More informationStage One North Detail Refer to Geoscience Drawings
Stormwater and Leachate Treatment Stage One North Detail Refer to Geoscience Drawings Morning glory bell mouth spillway Pe r i me ter d Spreader Bar rain Sediment Retention, Stormwater Detention Pond Area
More informationNiagara Falls Storage Site Safety Measures During Remediation
Niagara Falls Storage Site Safety Measures During Remediation On-Site Worker Protection Community and Environmental Protection Transportation and Disposal Safety Fully enclosed Retrieval Facility Regular
More information5/25/2017. Lumpkin Detention Basin Houston, Texas By Brian Whitney, P.E., CFM Victor Rendon. Lumpkin Basin. Lumpkin Road Overall Description
Lumpkin Detention Basin Houston, Texas By Brian Whitney, P.E., CFM Victor Rendon TEXAS FLOODPLAIN MANAGEMENT ASSOCIATION April 27, 2017 PROJECT LOCATION PROJECT VICINITY MAP Lumpkin Road Overall Description
More informationLessons Learned from the On-Site Disposal Facility at Fernald Closure Project
Lessons Learned from the On-Site Disposal Facility at Fernald Closure Project U.A. Kumthekar, J.D. Chiou Fluor Fernald, Inc. 7400 Willey Road, Hamilton, Ohio 45013 USA ABSTRACT The On-Site Disposal Facility
More informationATTACHMENT 5 Rosemont Area-Wide Fate and Transport and DIA Summary Tetra Tech August 31, 2010
ATTACHMENT 5 Rosemont Area-Wide Fate and Transport and DIA Summary Tetra Tech August 31, 2010 F:\Rosemont APP\August 2010 Response Letter\Sept 7 Tetra Tech-revised Response Letters\Final ADEQ Response
More informationCapping of Landfill Containing Hazardous Materials. Water Resources Research Center Conference
Capping of Landfill Containing Hazardous Materials Frank Caluya, Jr. P.E. PACDIV Water Resources Research Center Conference January 2003 Former Naval Air Station (NAS) Agana Landfill Removal Action NAS
More informationWritten Closure Plan. Comanche Station - Active CCR Landfill Public Service Company of Colorado Denver Colorado. October 17, 2016
Written Closure Plan Comanche Station - Active CCR Landfill Public Service Company of Colorado Denver Colorado October 17, 2016 Table of Contents 1.0 General Information... 1 2.0 Description of Closure
More informationStructured Geomembrane Liners in Landfill Base and Closure Systems
World of Coal Ash (WOCA) Conference - May 9-12, 2011, in Denver, CO, USA http://www.flyash.info/ Structured Geomembrane Liners in Landfill Base and Closure Systems Clark West Agru America Inc. ABSTRACT:
More informationA Comparison of Actual vs. Predicted Leachate Generation
2017 World of Coal Ash (WOCA) Conference in Lexington, KY - May 9-11, 2017 http://www.flyash.info/ A Comparison of Actual vs. Predicted Leachate Generation Cedric H. Ruhl, PE 1 and Chris Jordan, EI 2 1
More informationMore information on the site soil needs, soils balance, and borrow soil evaluations is provided in Section 4.15, Soil Borrow Sources. 4.
More information on the site soil needs, soils balance, and borrow soil evaluations is provided in Section 4.15, Soil Borrow Sources. 4.6 HYDRAULIC SEPARATION FROM GROUND WATER AND SUBGRADE DESIGN 4.6.1
More informationClosure Plan Ash Disposal Area PGE Boardman Power Plant
FIRST ISSUE REVISION 0 Closure Plan Ash Disposal Area PGE Boardman Power Plant Prepared for Portland General Electric September 2015 2020 SW 4th Avenue, Suite 300 Portland, Oregon 97201 This document was
More information2017 Annual Landfill Inspection Report
2017 Annual Landfill Inspection Report Ash Landfill Welsh Plant American Electric Power Service Corporation (SWEPCO) Cason, Texas November 17, 2017 Prepared for: SWEPCO. Prepared by: American Electric
More informationSE-6 GRAVEL BAG BERM. Objectives. Potential Alternatives
Objectives Erosion Control - EC Sediment Control - SE Tracking Control - TC Wind Erosion Control - WE Non-Storm Water Management - NS Materials and Waste Management - WM DESCRIPTION AND PURPOSE A gravel
More informationINITIAL RUN-ON AND RUN-OFF CONTROL PLAN 40 C.F.R. PART 257
INITIAL RUN-ON AND RUN-OFF CONTROL PLAN 40 C.F.R. PART 257.81 PLANT BOWEN PRIVATE INDUSTRY SOLID WASTE DISPOSAL FACILITY (ASH LANDFILL) GEORGIA POWER COMPANY EPA s Disposal of Coal Combustion Residuals
More informationAMERICAN ELECTRIC POWER (SWEPCO)
2016 DAM & DIKE INSPECTION REPORT ASH PONDS GERS-16-163 WELSH POWER PLANT AMERICAN ELECTRIC POWER (SWEPCO) CASON, TEXAS NATIONAL INVENTORY NO. TX4357 PREPARED BY GEOTECHNICAL ENGINEERING AEP SERVICE CORPORATION
More informationIntegrated Mine Waste Storage Concept, Krumovgrad Gold Project, Bulgaria
Integrated Mine Waste Storage Concept, Krumovgrad Gold Project, Bulgaria Terry Eldridge Golder Associates S.A., Chile Ben Wickland Golder Associates Ltd., Canada Adrian Goldstone Dundee Precious Metals
More informationm³ R R m 3.km R 8.00 R
CLEAN WATER DRAINS SECTION 01 - "CLEAN" WATER DRAINS 1.1 SABS 1200C SITE CLEARANCE 8.2.1 Clear and Grub m 2 87 620 R 10.00 R 876 200 1.2 SABS 1200DA EARTHWORKS (SMALL WORKS) 1.2.1 8.3.1 b) Excavate in
More informationPage 1 of 6 Permit No: MN R J. Mineral Mining and Dressing
Page 1 of 6 J. Mineral Mining and Dressing 1. Authorized Stormwater Discharges The requirements in Sector J apply to stormwater discharges associated with industrial activity from active, temporarily inactive
More information2017 Annual Inspection Report
2017 Annual Inspection Report for Compliance with the Coal Combustion Residuals Rule (40 CFR Part 257) Hayden Station 13125 U.S. Highway 40 Hayden, Colorado 81638 January 18, 2018 Table of Contents Certification...
More informationCLOSURE AND POST-CLOSURE CARE PLAN JAMES RIVER POWER STATION UTILITY WASTE LANDFILL CITY UTILITIES OF SPRINGFIELD, MISSOURI
CLOSURE AND POST-CLOSURE CARE PLAN JAMES RIVER POWER STATION UTILITY WASTE LANDFILL CITY UTILITIES OF SPRINGFIELD, MISSOURI INITIAL PREPARATION DATE: October 11, 2016 TABLE OF CONTENTS 1. CERTIFICATION
More informationLANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT CLASS 3N CCR LANDFILL PERMIT NO S3N-R2 AFIN
LANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT CLASS 3N CCR LANDFILL PERMIT NO. 0200-S3N-R2 AFIN 32-00042 OCTOBER 12, 2016 LANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT
More information- Earthwork Operations & Equipments
- Earthwork Operations & Equipments Earthwork Operations Those construction processes that involve the soil or earth in its natural form and that precede the building of the pavement structure itself Basic
More informationPROJECT SCOPE OF WORK CITY OF TOWN AND COUNTRY STORMWATER PROGRAM
PROJECT SCOPE OF WORK CITY OF TOWN AND COUNTRY STORMWATER PROGRAM Project ID Number: 2- Problem: Storm runoff from the park flows overland through a gap in a berm and then into the neighboring subdivision
More informationADDENDUM NO. 1. DATE ISSUED: June 1, 2018
ADDENDUM NO. 1 DATE ISSUED: June 1, 2018 BID #018-041 BIDDING AND CONTRACT DOCUMENTS FOR THE CLASS THREE LANDFILL CELLS 8-12 & CLASS TWO LANDFILL CLOSURE PROJECT GEORGETOWN COUNTY, SOUTH CAROLINA ****************************************************************************************************
More informationCCR Impoundment Closure: Reshaping your Ash! 2017 MWCC Technical Conference
CCR Impoundment Closure: Reshaping your Ash! 2017 MWCC Technical Conference Setting the Stage Who? SCS Engineers Consulting/Design Engineer Pat Goeke, P.E. Radmacher Brothers Earthwork Contractor Ben Cummings,
More informationLANDFILL CLOSURE PLAN PLUM POINT ENERGY STATION CLASS 3N CCR LANDFILL PERMIT NO S3N AFIN:
LANDFILL CLOSURE PLAN PLUM POINT ENERGY STATION CLASS 3N CCR LANDFILL PERMIT NO. 0303-S3N AFIN: 47-00461 OCTOBER 14, 2016 LANDFILL CLOSURE PLAN PLUM POINT ENERGY STATION CLASS 3N CCR LANDFILL PERMIT NO.
More informationGRADING, EROSION AND SEDIMENTATION CONTROL
SECTION 500 GRADING, EROSION AND SEDIMENTATION CONTROL 501 Erosion and Sedimentation Control Plan All engineering plans for projects that propose to construct new, or modify existing drainage facilities,
More informationAppendix B Addendum 1 - Revisions to the Operation and Training Plan (dated November 2015) for the Indian River County Class I Landfill
Appendix B Addendum 1 - Revisions to the Operation and Training Plan (dated November 2015) for the Indian River County Class I Landfill The IRC Landfill 20-year Construction/Operation Permit Nos. 0128769-022-SC
More informationBIG BEND POWER STATION NORTH AND SOUTH ECONOMIZER ASH PONDS CLOSURE PLAN. Prepared for
BIG BEND POWER STATION NORTH AND SOUTH ECONOMIZER ASH PONDS CLOSURE PLAN Prepared for 13031 Wyandotte Rd. Gibsonton, Florida 33534 Prepared by Wood Environment & Infrastructure Solutions, Inc. 1101 Channelside
More informationLeachate Management Plan
Leachate Management Plan LEACHATE MANAGEMENT PLAN Chesapeake Energy Center Ash Landfill Permit #440 Submitted To: Dominion Chesapeake Energy Center 2701 Vepco Street Chesapeake, Virginia 23323 Submitted
More information- TAILINGS AND WATER MANAGEMENT FOR A COLD REGIONS MINE - Dr. Michael Davies, P.Eng., P.Geo. and Mr. Mathieu Veillette, P.Eng., P.E.
- - Dr. Michael Davies, P.Eng., P.Geo. and Mr. Mathieu Veillette, P.Eng., P.E. AMEC Earth & Environmental Vancouver, British Columbia, Canada Pogo Gold Mine: Teck Cominco is the operator and the mine is
More informationTOWN OF MOUNT PLEASANT WESTCHESTER COUNTY, NEW YORK
TOWN OF MOUNT PLEASANT WESTCHESTER COUNTY, NEW YORK COST EVALUATION FOR ROLLING HILLS AREA WATER MAIN EXTENSION PROFESSIONAL CONSULTING, LLC. Octagon 10, Office Center 1719 Route 10, Suite 225 Parsippany,
More informationConsulting Engineers and Scientists. Closure Plan. Submitted by: GEI Consultants, Inc Voyager Drive Green Bay, Wisconsin
Consulting Engineers and Scientists Regulation Compliance Report Submitted to: We Energies 333 West Everett Street, A231 Milwaukee, Wisconsin 53203 Submitted by: GEI Consultants, Inc. 3159 Voyager Drive
More informationPROJECT SCOPE OF WORK CITY OF TOWN AND COUNTRY STORMWATER PROGRAM
PROJECT SCOPE OF WORK CITY OF TOWN AND COUNTRY STORMWATER PROGRAM Project Name: 194 Muir Woods Ln Project ID Number: 216-2 Problem: At 194 Muir Woods Lane, nearly two acres of watershed flow through the
More informationWATER TREATMENT PLANT PRELOADING AND SEDIMENT CONSOLIDATION AREA 2010 CONSTRUCTION WORK PLAN
WATER TREATMENT PLANT PRELOADING AND SEDIMENT CONSOLIDATION AREA 2010 CONSTRUCTION WORK PLAN Prepared For: 301 Plainfield Road, Suite 330 Syracuse, New York 13212 Prepared By: 301 Plainfield Road, Suite
More informationVICINITY MAP AND SITE MAP. Page 1 of 9
INTRODUCTION... 2 1. Background Information of West Bottom Ash Pond (BAP)... 2 1.1 Facility Location Description...2 1.2 Description of West BAP CCR Unit...2 1.2.1 Embankment Configuration...2 1.2.2 Construction
More informationTechnical Specifications Okeechobee Landfill
Presented to: Waste Management Inc. of Florida 10800 NE 128th Avenue Okeechobee, FL 34972 Presented by: SCS ENGINEERS 1900 NW Corporate Blvd., Suite W110 Boca Raton, FL (954) 571-9200 May 2017 File No.
More informationNRG BRANDYWINE ASH STORAGE SITE BRANDYWINE, MARYLAND 2015 ANNUAL CCR INSPECTION REPORT
NRG BRANDYWINE ASH STORAGE SITE BRANDYWINE, MARYLAND 2015 ANNUAL CCR INSPECTION REPORT To: Walter Johnson, NRG MD Ash Management LLC From: Jeffrey Hutchins, P.E., AECOM Date: January 6, 2016 RE: Annual
More informationTable of Contents. Attachments Attachment A Photos Attachment B Inspection Map. Pages 3 of 10
Table of Contents 1.0 Introduction...4 2.0 Description of Landfill...4 3.0 Review of Available Information...5 4.0 Inspection...5 4.1 Changes in Geometry since Last Inspection...5 4.2 Volume...5 4.3 Definitions
More informationLas Pulgas Landfill Phase I Clean Closure Marine Corps Base Camp Pendleton, Ca
Las Pulgas Landfill Phase I Clean Closure Marine Corps Base Camp Pendleton, Ca SWANA Western Regional Conference April 2013 Presented by Marielle Coquia, P.E. Agenda Project Overview Las Pulgas Landfill
More informationHOLLOW ROCK FACILITY 2016 ANNUAL LANDFILL INSPECTION REPORT FOR COAL COMBUSTION RESIDUALS (CCR) EXISTING LANDFILL
HOLLOW ROCK FACILITY 2016 ANNUAL LANDFILL INSPECTION REPORT FOR COAL COMBUSTION RESIDUALS (CCR) EXISTING LANDFILL Prepared for FirstEnergy Generation LLC 76 S. Main Street Akron, Ohio, 44308 December,
More informationSTATE OF ARIZONA AQUIFER PROTECTION PERMIT NO. P PLACE ID , LTF 49639
1.0 AUTHORIZATION STATE OF ARIZONA AQUIFER PROTECTION PERMIT NO. P-106100 PLACE ID 135845, LTF 49639 In compliance with the provisions of Arizona Revised Statutes (A.R.S.) Title 49, Chapter 2, Articles
More informationCCR Rule Operating Criteria Closure Plan
CCR Rule Operating Criteria 257.102 Closure Plan FGD Pond 2 Jim Bridger Plant Point of Rocks, Wyoming PREPARED FOR PacifiCorp 1407 West North Temple Salt Lake City, UT 84116 (801) 521-0376 Fax (801) 220-4748
More informationGreenfield Pond B Rehabilitation
Preliminary Investigation Report Centennial, Colorado November 15, 2011 Prepared for: Liverpool Metropolitan District Prepared by: Stantec Consulting Services, Inc. Table of Contents Executive Summary...
More informationDATE: October 31, 2016 FILE: /CV TO: Chair and directors Comox Valley Regional District (Comox Strathcona waste management) board
Staff report DATE: October 31, 2016 FILE: 5360-20/CV TO: Chair and directors Comox Valley Regional District (Comox Strathcona waste management) board FROM: Debra Oakman, CPA, CMA Chief Administrative Officer
More informationTechnical Memorandum
Tucson Office 3031 West Ina Road Tucson, AZ 85741 Tel 520.297.7723 Fax 520.297.7724 www.tetratech.com Technical Memorandum To: Kathy Arnold From: Keith Thompson Company: Rosemont Copper Company Date: August
More informationBALLAST PRODUCTION CURRY QUARRY
BALLAST PRODUCTION CURRY QUARRY 2019-2020 INVITATION TO SITE VISIT OCOTBER 2018 SEPTEMBER 27, 2018 ALASKA RAILROAD CORPORATION 327 WEST SHIP CREEK AVENUE ANCHORAGE, ALASKA 99501 PROJECT DESCRIPTION & SCOPE
More informationTable of Contents. Attachments Attachment A Photos Attachment B Site Map. Pages 3 of 9
Table of Contents 1.0 Introduction...4 2.0 Description of Landfill...4 3.0 Review of Available Information...5 4.0 Inspection...5 4.1 Changes in Geometry since Last Inspection...5 4.2 Volume...5 4.3 Definitions
More informationTimber Sale Appraisal More Cow Bell Sale FG W
Timber Sale Appraisal Sale FG-341-2019-W00542-01 District: Forest Grove Date: January 24, 2019 Cost Summary Conifer Hardwood Total Gross Timber Sale Value $2,048,273.85 $10,164.42 $2,058,438.27 Project
More informationClosure/Post-Closure Care Plan Unit 3 AQCS Solids Landfill
Sherburne County Generating Plant MPCA Permit No. SW-293 Becker, MN Table of Contents Page 1.0 Introduction...1 2.0 Closure Plan...2 2.1 Notification of Final Cover Construction...2 2.2 Notification of
More informationINITIAL RUN-ON AND RUN-OFF CONTROL PLAN 40 C.F.R. PART 257
INITIAL RUN-ON AND RUN-OFF CONTROL PLAN 40 C.F.R. PART 257.81 HUFFAKER ROAD (PLANT HAMMOND) PRIVATE INDUSTRIAL LANDFILL (HUFFAKER ROAD LANDFILL) GEORGIA POWER COMPANY EPA s Disposal of Coal Combustion
More informationSMART GYPSUM STACK MANAGEMENT FROM CONCEPT TO REALITY
SMART GYPSUM STACK MANAGEMENT FROM CONCEPT TO REALITY Phong Vo, Manager - Engineering/Gypsum, Mosaic Fertilizer, LLC. 13830 Circa Crossing Drive Lithia, Florida 33547, USA and Ashraf H. Riad, Ph.D., P.E.,
More informationHISTORY OF CONSTRUCTION 40 CFR (c)(1)(i) (xii) PLANT HAMMOND ASH POND (AP 2) GEEORGIA POWER COMPANY
HISTORY OF CONSTRUCTION 40 CFR 257.73(c)(1)(i) (xii) PLANT HAMMOND ASH POND (AP 2) GEEORGIA POWER COMPANY (i) Site Name and Ownership Information: Site Name: Plant Hammond Site Location: Site Address:
More informationEvaluation of Drainage Layer Alternatives for Proposed Landfill Liner at the E.W. Brown Generating Station
Evaluation of Drainage Layer Alternatives for Proposed Landfill Liner at the E.W. Brown Generating Station Nicholas G. Schmitt, PE 1, and M. Brian Cole, PE 2 1 Senior Principal Engineer, AMEC Environment
More information