Loading...
HomeMy WebLinkAboutCCB0001_ONVaughanDocumentationReportJuly2009REPORT STRUCTURAL FILL FACILITY DOCUMENTATION REPORT O.N. VAUGHAN PROPERTY 4752 HIGHWAY 301 HALIFAX, NORTH CAROLINA Prepared for Roanoke Valley Energy Facility 290 Power Place P.O. Box 351 Weldon, North Carolina 27890 July 2009 URS Corporation — North Carolina 1600 Perimeter Park Drive Morrisville, NC 27560 Tel. (919) 461-1100 Fax. (919) 461-1415 URS Corporation 1600 Perimeter Park Drive„ Suite 400 Morrisville, NC 27560 Tel: 919.461.1100 Fax: 919.461.1415 www.urscorp.com August 5, 2009 Mr. Edward Mussler Permitting Supervisor — Solid Waste Section North Carolina Department of Environment and Natural Resources Division of Waste Management 1646 Mail Service Center Raleigh, NC 27699-1646 Subject: Coal Ash Structural Fill Site Documentation Report O.N. Vaughan Property at 4752 Highway 301 - Halifax, NC 36.3708 N Latitude; 77.595 W Longitude URS Project No. 31826292 Dear Mr. Mussler: On behalf of our client, Westmoreland Partners, Roanoke Valley Energy Plant in Weldon, NC, URS Corporation is submitting herein 2 copies of the above referenced report for a Coal Ash Structural Fill Site. This report documents how this structural fill site was designed, operated and closed in accordance with North Carolina Department of Environment and Natural Resources, Division of Waste Management Regulations; Section .1700 Requirements for Beneficial Use of Coal Combustion By -Products (CCB). This report also documents how the appropriate recording process was completed as part of the project. This structural fill site has met the requirements in Section .1700 and the site has been restored to pasture lands. This site is complete and there should be no more further documentation required. Call us at 919-461-1100 with any questions concerning this report. Sincerely yours, Richard K. Lowe Principal Geotechnical Engineer u I IJrF+fr -W SEAL - ram' IN70 Ed Edens, P.E. '+"'JJ"„t",,,• Civil/Roadway Engineering Group Manager PAJobs4\2006\R0VA\Ash beneficial use sites-Built\Beneficial Use Site cover letters-fnal.doc URS Corporation 1600 Perimeter Park Drive„ Suite 400 Morrisville, NC 27560 Tel: 919.461.1100 Fax: 919.461.1415 www.urscorp.com August 5, 2009 Mr. Chris Hews, Sr. Environmental Manager Roanoke Valley Energy Facility 290 Power Place P.O. Box 351 Weldon, NC 27890 Subject: Coal Ash Structural Fill Site Documentation Report O.N. Vaughan Property at 4752 Highway 301 - Halifax, NC 36.3708 N Latitude; 77.595 W Longitude URS Project No. 31826292 Dear Mr. Outland: URS Corporation has completed the above referenced work as outlined in our May 31, 2009 proposal, and authorized by Westmoreland Partners purchase order 2090998 dated June 1, 2009. The purpose of this assignment was to document the operation and closure of the above referenced parcel of property for a Coal Ash Structural Fill site in accordance with the North Carolina Department of Environment and Natural Resources, Division of Waste Management Regulations; Section .1700 Requirements for Beneficial Use of Coal Combustion By -Products (CCB). This structural fill site has met the requirements in Section .1700 and the site has been restored to pasture lands. The documentation report has been sent to NCDENR as required by Section .1700. We appreciate the opportunity to be of continued service to Westmoreland Partners. Call us at 919-461-1100 with any questions or concerns. Sincerely yours, Richard K. Lowe Principal Geotechnical Engineer -} y11C41'III Jefos CAP '} SEPL r — =r+` 16470 'y Ed Edens, P.E. Civil/Roadway Engineering Group Manager PAJobs4\2006\R0VA\Ash beneficial use sites-Built\Beneficial Use Site cover letters-fnal.doc TABLE OF CONTENTS 1.0 INTRODUCTION ..... 1-1 2.0 STRUCTURAL FILL........................................................................................2-1 2.1 Transportation..........................................................................................2-1 2.2 Placement/Compaction............................................................................ 2-1 2.3 Stability....................................................................................................2-1 3.0 EROSION CONTROL MEASURES...............................................................3-1 3.1 Drainage Features.................................................................................... 3-1 3.2 Maintanence.............................................................................................3-1 4.0 CLOSURE DESIGN..........................................................................................4-1 4.1 Cover Material.........................................................................................4-1 4.2 Configuration...........................................................................................4-1 4.3 Recordation..............................................................................................4-1 FIGURE 1-1 USGS Quadrangle Map — Weldon, North Carolina...........................................1-11 APPENDICES A Photographic Documentation B Proctor Test C Drive Tube Density Test D As -Built Drawing P:Uobs4\2008\ROVA\Ash beneficial use sites-Built\Beneficial Use Site As Report.doc ii O.N. Vaughan Structural Fill Site ROVA —Weldon, NC iKIMIZk9:ko]millet 0MZ►I Westmoreland Partners operates a coal-fired power generating facility in Weldon, North Carolina. The Coal Combustion By -Products (CCB) was approved for beneficial use in refilling 7-acre (+/-) soil borrow site situated 4.4 miles south of Weldon at 4752 Highway 301 in Halifax County. The soil borrow site is licensed as a mining facility by the property owner, O.N. (Nat) Vaughan. Mr. Vaughan and Westmoreland Partners have an agreement whereby Westmoreland will provide CCB as a structural fill to restore the borrow site as provided for in Section .1700 of the North Carolina Solid Waste Management 15A NCAC 13B Rules. This report describes the structural fill placement, erosion control measures and the closure design and provides drawings and photographs documenting that this structural fill site meets the requirements prescribed in Section .1700 of the North Carolina Solid Waste Management 15A NCAC 13B Rules, for Beneficial Use of CCB's. Figure 1-1. USGS Quadrangle Map — Weldon, North Carolina P:Uobs4\2008\ROVA\Ash beneficial use sites-Built\Beneficial Use Site As Report.doc 1-1 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC M11=31:4,11101 ILI1:L1 M 1141 The structural fill material is a CCB that was used to restore a former borrow site. The structural fill was transported from the Roanoke Valley Power Plant (ROVA) to Mr. Vaughan's borrow site from February 2008 to April 2009. The material was transported, placed and compacted, and sloped according to Section .1700 of the North Carolina Solid Waste Management 15A NCAC 13B Rules. The following sections outline how the structural fill construction conformed with Section .1700 Rules. 2.1 Transportation Fly ash from the power plant is collected in silos. The ash is moistened as it is discharged from the silos into open -topped trucks. This quenching increases the water content of the structural fill material to prevent dust generation. Covered trucks were used to haul the structural fill material as another measure to prevent dusting from occurring during transportation. 2.2 Placement/Compaction The structural fill was unloaded from the trucks in a controlled manner to prevent dust from becoming airborne. After the material was unloaded it was spread in approximately 24" thick lifts and compacted. URS personnel performed several standard Proctor tests (ASTM D 698), and the field density and moisture content tests (ASTM D 2937 & D 2216, respectively) on site. The test results indicated that the structural fill material was adequately compacted. A summary of the Proctor tests and the field moisture/density test results for the structural fill is presented in Appendix B and C, respectively. 2.3 Stability The structural fill material was placed and graded so that side slopes were less than 4 horizontal : 1 vertical slope. To maintain stability of perimeter slopes and control erosion due to runoff from the final cover. P:Uobs4\2008\ROVA\Ash beneficial use sites-Built\Beneficial Use Site As Report.doc 2-1 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC Erosion control features were installed and maintained as prescribed in the approved Erosion and Sedimentation Control Plan. The plan was approved by NCDENR on December 13, 2007. Several erosion control features that were installed and maintained throughout this project are discussed below. 3.1 Drainage Features A stilling basin was constructed, prior to placement of the fill, in the northwest corner of the borrow area, see photo 1 in Appendix A. Discharge from the stilling basin is filtered through two stone check dams, see photo 2 in Appendix A. The base of the borrow site slopes at approximately 1 % from the southeast corner to the stilling basin in the northwest corner. An earthen containment berm was constructed between the stilling basin and the floor of the borrow area to prevent fill material from entering the stilling basin. A perimeter stormwater control ditch was constructed along the borrow site limits to divert stormwater away from the borrow area. The slope of the ditch varied from 2.6% to 1%. To reduce amount of soil being tracked onto Highway 301 the final 50-feet of gravel access road was surfaced with coarse aggregate (2" to 3" nominal size). These features and the earthen sediment trap near the active fill areas provided sufficient erosion control to limit sedimentation from migrating off site. 3.2 Maintenance The erosion control features were checked periodically throughout this project and especially during and after a major storm event. At times additional rock was added to the check dams and built-up sediment was removed from the channel and dams. During a storm event the drainage channels were checked to see if any water bearing sediment migrated off site. There was no visual evidence of the fill material migrating off site. P:Uobs4\2008\ROVA\Ash beneficial use sites-Built\Beneficial Use Site As Report.doc 3-1 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC The last time the structural fill material was accepted was on April 9, 2009. From April to May cover material was placed over the structural fill. The cover material was specified and placed according to Section .1705 of the North Carolina Solid Waste Management 15A NCAC 13B Rules. During the month of June the site was seeded to minimize erosion of the cover material. 4.1 Cover Material After the structural fill material reached final grades the area was covered with soil according to Section .1705 0) of the North Carolina Solid Waste Management 15A NCAC 13B Rules. Twelve inches of cover soil, plus six inches of topsoil capable of supporting vegetation, was used to cap the structural fill material. Final cover placement was started within 30 working after the filling process has ceased. While the cover material was being placed URS regularly probed the soil cover on a grid pattern to measure the cover material thickness. Cover soil thickness were field marked using flags. Not all areas where cover thickness were less than 18 inches in thickness were rechecked. The flags used as grade stakes were used by the contractor to control cover thickness. A map was created documenting URS's cover material thickness measurements (see Appendix D). After URS verified that the site was adequately cover with 18 inches of covered soil the Owner began liming, fertilizing and seeding. The site was seeded on June 23-25. 4.2 Configuration According to Section .1706 of the North Carolina Solid Waste Management 15A NCAC 13B Rules the final surface of the structural fill shall be graded to: • Minimize erosion of cover material, • Promote drainage of area precipitation and minimize infiltration, • Prevent ponding of surface water. The side slope was graded to a less than 4H:1 V slope and the top of the fill material was graded at a 5% slope. These slopes comply with Section .1706 of the Rules intended to prevent ponding and infiltration, but at the same time being gentle enough to prevent erosion. 4.3 Recordation Section .1707 of the North Carolina Solid Waste Management 15A NCAC 13B Rules requires the land owner to submit a notarized statement describing the volume and location of coal combustion product to the county Register of Deeds within 90 days after completion of the project. On May 11, 2009 the Owner recorded the deed change with Halifax county. P:Uobs4\200S\R0VA\Ash beneficial use sites-Built\Beneficial Use Site As Report.doc 4-1 PROJECT JOB NO. UILS ROVA Beneficial Ash Use SUBJECT SHEET NO. July 1, 2007 to April 30, 2009 Records CALCULATION SHEET ORIGINATED B DATE CHECKED BY JDATE ICALC. NO. REV. NO. Lenore Gaier 8/1/2009 ROVA Pierce 1 ASH DESTINATION Total Trucking Arthurs Vaughan Month - Year (Tons) (Tons) I Creek vroperiy July-07 14,865.50 14,865.50 August-07 15,922.19 mmm- 15,922.19 September-07 10,426.98 10,426.98 October-07 8,925.19 8,925.19 November-07 9,551.73 9,551.73 December-07 14,655.67 14,655.67 January-08 15,613.76 15,613.76 15,613.76 February-08 14,136.54 14,136.54 4,107.21 10,029.33 March-08 13,376.93 13,376.93 13,376.93 April-08 13,934.38 13,934.38 13,934.38 May-08 9,855.38 9,855.38 9,855.38 June-08 12,600.45 12,600.45 12,600.45 July-08 16,042.65 16,042.65 August-08 15,093.82 15,093.82 September-08 15,986.76 15,986.76 October-08 11,741.54 11,741.54 November-08 12,955.79 12,955.79 December-08 15,669.70 January-09 16,013.40 February-09 0.00 March-09 510.23 April-09 1,690.46 2007-2009 TOTALS 259,569.05 15,669.70 16,013.40 0.00 510.23 1,690.46 94,068.23 165,500.82 P:\Jobs4\2008\ROVA\Ash beneficial use sites-Built\2007-2008-2009 ASH DESTINATION SUMMARY.xIs O.N. Vaughan Structural Fill Site ROVA —Weldon, NC APPENDIX A Photographic Documentation P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 1 � r - 'ter _ .� •�. O.N. Vaughan Structural Fill Site ROVA —Weldon, NC QA-3 The final 50' of gravel access road surfaced with coarse aggregate. — 2/6/08 QA-4 Filling the southeast corner of the borrow site with structural fill. — 3/11/08 P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC QA-5 Stormwater Stilling Basin and rock check dam at northwest corner — 6/23/08 QA-6 Looking at the north end of the borrow site. — 9/23/08 P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC QA-7 Top of the structural fill material. (looking south) — 1/23/09 QA-8 Finalizing the grading of the structural fill. (looking northwest) 1-23-09 P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 O.N. Vaughan Structural Fill Site ROVA —Weldon, NC QA-9 Erosion control features on the east side of the borrow site. - 6/2/09 R- QA-10 Placement of cover material. (looking northwest) - 6/2/09 P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 7777�� O.N. Vaughan Structural Fill Site ROVA —Weldon, NC APPENDIX B Proctor Test P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 URS Landfill Services Group Proctor Test Worksheet Page of Un Project Name: Project Location: Soil Description: Tested By: Test Date: Project Number: ROVA Ash Structural Fill ON Vaughan on Hwy 301 Halifax, NC Gravelly clayey fine to coarse sand (SC) RKL 2/22/2009 31826292 Boring No. Sample No. Test Method ASTM D-698 Layers/Blows 3layers/25blows Mold Volume: 0.0334 cubic feet Test No. 1 2 3 4 5 6 7 8 9 10 Sample ID na ura dry +2 +4 +6 +8 +10 Mold ID Mold Wt. (gm) 4166 4166 4166 4166 4166 Wet Soil Wt. + Mold (gm) 5940 6060 6110 6170 6170 Wet Soil Wt. (gm) 0 1774 1894 1944 2004 2004 0 Mold Volume (cu ft) 0.033 0.033 0.033 0.033 0.033 0.033 0.033 Wet Density (pcf) 0.0 117.1 125.0 128.3 132.3 132.3 0.0 Dry Density (pcf) #DIV/0! 108.9 115.0 113.4 116.6 115.7 #DIV/0! Water Content Tare ID 1 2 3 4 1 Tare Wt. (gm) 82.6 81.5 80.5 82.6 82.5 Wet Soil Wt.+ Tare (gm) 226.0 206.0 218.0 218.0 226.0 Wet Soil Wt. (gm) (Wt) 0.0 1 143.4 124.5 1 137.5 135.4 1 143.5 0.0 Dry Soil Wt. + Tare (gm) 216.0 196.0 202.0 202.0 208.0 Dry Soil Wt. (gm) (Ws) 0.0 133.4 114.5 121.5 119.4 125.5 0.0 Weight Water (gm) (W W) 0.0 10.0 10.0 16.0 16.0 18.0 0.0 ater Content % (WW/WS #DIV/0! 7.5% 8.7% 13.2% 13.4% 14.3% #DIV/0! 119.0 117.0 u 115.0 y 113.0 • • • 0 111.0 109.0 107.0 • 105.0 6.0% 8.0% 10.0% 12.0% Water Content 14.0% 16.0% 18.0% (%) Max. Dry Density (pcf) = Dptimum Water Content (%) = 116.6 13.4% P1Jobs4\2008\R0VA\Ash beneficial use sites-Built\URS Proctor Test Cover Soil.XLS URS Landfill Services Group Proctor Test Worksheet Page of Un Project Name: Project Location: Soil Description: Tested By: Test Date: Project Number: ROVA Ash Structural Fill ON Vaughan on Hwy 301 Halifax, NC Bottom Ash RKL 2/22/2009 31826292 Boring No. Sample No. Test Method ASTM D-698 Layers/Blows 3layers/25blows Mold Volume: 0.0334 cubic feet Test No. 1 2 3 4 5 6 7 8 9 10 Sample ID na ura dry +2 +4 +6 +8 +10 Mold ID Mold Wt. (gm) 4166 4166 4166 4166 4166 4166 Wet Soil Wt. + Mold (gm) 5460 5530 5580 5655 5730 5785 Wet Soil Wt. (gm) 0 1294 1364 1414 1489 1564 1619 Mold Volume (cu ft) 0.033 0.033 0.033 0.033 0.033 0.033 0.033 Wet Density (pcf) 0.0 85.4 90.0 93.3 98.3 103.2 106.9 Dry Density (pcf) #DIV/0! 81.5 83.1 83.9 85.8 87.4 87.2 Water Content Tare ID 9 10 11 12 2 3 Tare Wt. (gm) 23.4 23.4 24.8 24.3 81.5 80.4 Wet Soil Wt.+ Tare (gm) 80.6 82.1 74.2 81.7 186.0 222.0 Wet Soil Wt. (gm) (Wt) 0.0 1 57.2 58.7 1 49.4 57.4 1 104.5 141.6 Dry Soil Wt. + Tare (gm) 78.0 77.6 69.2 74.4 170.0 196.0 Dry Soil Wt. (gm) (Ws) 0.0 54.6 54.2 44.4 50.1 88.5 115.6 Weight Water (gm) (W W) 0.0 2.6 4.5 5.0 7.3 16.0 26.0 ater Content % (Ww/WS #DIV/0! 4.8% 8.3% 11.3% 14.6% 18.1% 22.5% 90.0 89.0 88.0 87.0 a 86.0 L 85.0 0 84.0 p 83.0 • • 82.0 81.0 • 80.0 4.0% 6.0% 8.0% 10.0% 12.0% Water 14.0% 16.0% 18.0% Content (%) 20.0% 22.0% 24.0% Max. Dry Density (pcf) = Dptimum Water Content (%) = 87.4 18.1 % P1Jobs4\2008\R0VA\Ash beneficial use sites-Built\URS Proctor Test Bottom Ash.XLS URS Landfill Services Group Proctor Test Worksheet Page of Un Project Name: Project Location: Soil Description: Tested By: Test Date: Project Number: ROVA Ash Structural Fill ON Vaughan on Hwy 301 Halifax, NC Flyash RKL 2/22/2009 31826292 Boring No. Sample No. Test Method ASTM D-698 Layers/Blows 3layers/25blows Mold Volume: 0.0334 cubic feet Test No. 1 2 3 4 5 6 7 8 9 10 Sample ID na ura dry +2 +4 +6 +8 +10 Mold ID Mold Wt. (gm) 4166 4166 4166 4166 Wet Soil Wt. + Mold (gm) 5415 5500 5655 5680 Wet Soil Wt. (gm) 0 1249 1334 1489 1514 0 0 Mold Volume (cu ft) 0.033 0.033 0.033 0.033 0.033 0.033 0.033 Wet Density (pcf) 0.0 82.4 88.1 98.3 99.9 0.0 0.0 Dry Density (pcf) #DIV/0! 64.7 67.3 71.6 70.8 #DIV/0! #DIV/0! Water Content Tare ID 5 6 7 8 Tare Wt. (gm) 23.9 23.9 22.1 23.1 Wet Soil Wt.+ Tare (gm) 66.2 72.2 83.9 90.3 Wet Soil Wt. (gm) (Wt) 0.0 1 42.3 48.3 1 61.8 67.2 1 0.0 0.0 Dry Soil Wt. + Tare (gm) 57.1 60.8 67.1 70.7 Dry Soil Wt. (gm) (Ws) 0.0 33.2 36.9 45.0 47.6 0.0 0.0 Weight Water (gm) (W W) 0.0 9.1 11.4 16.8 19.6 0.0 0.0 ater Content % (WW/WS #DIV/0! 27.4% 30.9% 37.3% 41.2% #DIV/0! #DIV/0! 74.0 72.0 70.0 a T 68.0 .y C 0 66.0 0 64.0 62.0 60.0 25.0% 30.0% 35.0% Water 40.0% 45.0% 50.0% Content (%) Max. Dry Density (pcf) = Dptimum Water Content (%) = 71.6 37.3% P1Jobs4\2008\R0VA\Ash beneficial use sites-Built\URS Proctor Test Flyash.XLS O.N. Vaughan Structural Fill Site ROVA —Weldon, NC APPENDIX C Drive Tube Density Test P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 URS Landfill Services Group Drive Tube Density Worksheet Page _1_of Project Name: Project Number: Mr Vaughan Property - Structural Fill Facility 31826292 Test Location: Density Testing Equipment: Drive Tube Test No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Test Location northeast corner of property southwest corner of property southwest side of property east side of center point 3N 3W 2N 2W Mold ID 1 2 3 4 1 2 Tare Wt. (gm) 712 708 708 712 710 708 Tare + Wet Soil Wt. (gm) 1864 1970 2118 1984 2592 2516 Wet Soil Wt. (gm) (Wt) 1152 1262 1410 1272 1882 1808 0 0 0 0 0 0.00 0.00 Mold Volume (cu. Ft.) (V) 0.0334 0.0334 0.0334 0.0334 0.0334 0.0334 0.000 0.000 0.000 0.033 0.033 0.033 0.033 Wet Density (pcf) (Wt/V) 76.04 83.30 93.07 83.96 124.22 119.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Weight Water (gm) (W W) 236.46 257.84 229.57 88.43 209.94 170.08 0.00 0.00 0.00 #DIV/0! #DIV/0! #DIV/0! #DIV/0! ry Density (pcf) (Wt-W,/V 60.4 66.3 77.9 78.1 110.4 108.1 0.0 0.0 0.0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! Proctor Max. Dry Density 71.6 71.6 87.4 87.4 116.6 116.E Percent Compaction 84.4% 92.6% 89.1 % 89.4% 94.7% 92.7% 0.0% 0.0% 0.0% #DIV/0! #DIV/0! #DIV/0! #DIV/0! Water Content Tare ID 1 2 3 4 1 2 Tare Wt. (gm) 82.6 81.6 80.5 82.6 82.5 81.7 Wet Soil Wt.+ Tare (gm) 181.5 188.3 180.0 176.1 208.0 188.0 Wet Soil Wt. (gm) (Wt) 98.9 106.7 99.5 93.5 125.5 106.3 0.0 0.0 0.0 0.0 0.0 0.00 0.00 Dry Soil Wt. + Tare (gm) Dry Soil Wt. (gm) (Ws) 78.6 84.9 83.3 87.0 111.5 96.3 0.0 0.0 0.0 0.0 0.0 0.00 0.00 Weight Water (gm) (W W) 20.3 21.8 16.2 6.5 14.0 10.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 Water Content % (Wv /Ws; 25.8 25.7 19.4 7.5 12.6 10.4 0.0 0.0 0.0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\ROVA DRIVE TUBE DENSITY WORKSHEET.XLS O.N. Vaughan Structural Fill Site ROVA —Weldon, NC APPENDIX D Drawings P:\Jobs4\2008\ROVA\Ash beneficial use site\As-Built\Beneficial Use Site As Report 31826292 m North Reference NC Grid NAD 83 16" \ ' ��� 3—�55j 0 18 il. SIP 5 N STRUCTURAL FILL FINAL COVER 75 ELEVATION CONTOUR (18" ABOVE s \ / //� TOP OF ASH) � 9% FINAL COVER SLOPE (TYPICAL) /—/ 19" V /1^14„1 18 COVER THICKNESS 3/10/09 I 2 /, 4 N18" COVER THICKNESS 4/29/09 � I 5 0 ° COVER THICKNESS 5/15/09 20 1 n0, II \ 19"1COVER THICKNESS 6/2/09 0" 191./ 15"' 3 N /-7 I15" 18/ 18" / o / A \ YI' 6" 2 N i r16 I — — 191, — — 20" / \� � � � 1 N \ 14" / /lillll / iQ _ / 18' 10" 4'2 \ 14 a I\ A / �" r'SIP 18 4" �� ��� ��— —� —�J $ \ /= 8� 14 " _� _— _— _ _� — — 1" IP 6 " 4 W ` — — _ _ _ '� ®\ S ]]°02'54"E 514.13' 18 14"t8-" 13 18" "]o°4zs soo.00 L rt8 18�-------\� -- 0�------------------ ____ '------------_--- existing access Path ----- 75' Right of Way 1" SIP 40 0 40 80 120 GRAPHIC SCALE - FEET ROANOKE VALLEY FLY ASH DISPOSAL SITE OTIS N. VAUGHAN BORROW PIT, HALIFAX COUNTY, NC AS -BUILT DRAWING Prepared by ,,�N CARp�r% JOB N0. SURVEYED SSIpti9w', ,a SEAL JRS Corporation — North Carolina =� 18470 �` ad DESIGNED DRAWN 1600 PerimP eter ark Drive =� - 9�' Morrisville, North Carolina 27560 !y61 NE� CHECKED E>�o.E c9191 .s,-„s oo — (s,a) 1-1.15 GLENN �'-��` 31825952 BY ODOM BY EGE/R1 BY SMS BY EGE