Loading...
HomeMy WebLinkAbout02-06 North American Emerald Mine File Pt. 24AyyhWd'S Name: Ayyhe. f Permit No.: Reviewer: MINING CHECKLIST FOR ROUTING County: PrOjeet Name: Rfver Basin Name: Date Recefved: ❑ New ❑ Renewal ❑ MAftW M (inside yermft not+ndarfes) ❑ Modiffeaum (outside yermft boundartu) ❑ Transfee ❑ Release ❑ Partial Release ❑ Additional U formAtton ❑ Fee Needed: $ ❑ Fee Reeetved: $ Please route entire qphcgtfm ra4e to: Regional Of ftCe (2 corrgsleh coyieS; attach the 'tQS Regional Ofte Mfsdng Ayyheatton Review ckklw- to one coyy and attach both the DWQpnd DA( "Mtnin& nyyliMUM Review Form' to the other eoyy; send bath eoyiO to the Regional Engineer) Date: Routed RCC'd ❑ DWSfon of Water Resources Date: Routed RCC'd ❑ NC Wildlife Resources Commisstm Date: Ranted RCC'd ❑ US Ffsh & Wtldl fi servfCe Date: Routed Reed (Only new ayyhcations and modi`i dfoa requests that add land to the yerud) Please route first 3 gapes of the ayphCattM and my location mans to: ❑ DtVtsfon of Parks & Recreation Date: Routed Reed ❑ Nc Geological Survey Sedian Date: Routed Reed ❑ Division e f Marine Ffshtrits Date: Routed Reed ❑ Division of Sod & Water CONSUMnan (ylus LEA) Daft: Routed Reed (Only new ayykdkns and mOoation requests that add )and to tke yermit) ❑ DfViSbX of ArCkVes & HtstOry Daft: Routed Reeld (only new ayylfeations) ❑ other: **sx?ense Date for Comments: ❑ Please note the Mowing: Date: Routed Reed (no later than 25 days from reeefyt) Freeman Environmental nsulting, LLC 31 Cross Street, Suite 229 ENGINEERING Spruce Pine, NC 28777 Office: 828-765-1515 DESIGN SHEET Cell: 828-765-3571 E-mail: freemanenviromen@bellsouth.net Prep. EM NCDENR North Carolina Department of Environment and Natural Resources Division of Land Resources Land Quality Section James D. Simons, PG, PE Beverly Eaves Perdue, Governor Director and State Geologist September 27, 2011 Dee Freeman, Secretary Certified Mail Return Receipt Requested 7008 1300 0000 1125 3940 Mr. James K. Hill, Jr. North American Emerald Mines, Inc. 531 Duncan Lane Hiddenite, North Carolina 28636-9233 RE: North American Emerald Mine Permit No. 02-06 Alexander County Yadkin River Basin Dear Mr. Hill: The review has been completed on the renewal request your company submitted for the referenced mine site. However, the following is needed to continue processing your application: The reclamation bond was calculated for this site using the information submitted on the revised mine map. The reclamation bond for this site has been calculated to be $83,800.00. The calculation worksheet is enclosed for your review and the bond or balance ($13,608.92) will be required prior to approval of this modification renewal. For your convenience, I have enclosed a bond form, an assignment of a savings account form and irrevocable standby letter of credit form for your use in securing the required bond. The name on the security must be the same as the name appearing on the application for a mining permit, i.e., North American Emerald Mines, Inc. In addition to one of these alternatives, you may, upon request, substitute a cash deposit. P-lease-be-advised--that-the-renewal-request cannot be completed -until -the -new bond - amount has been received. As required by G.S. 74-51 (h), you are hereby advised that you have 60 days from the date of your receipt of this letter to submit the reclamation bond. If you are unable to meet this deadline and wish to request additional time, you must submit information, in writing, to the Director clearly indicating why the deadline cannot be met and request that an extension of time be granted. 1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone 919-733-4574 / FAX: 919-733-2876 512 North Salisbury Street, Raleigh, North Carolina, 27604 • Internet:hftp://www.dir.enr.state.nc.us/pagesAandqualitysection.html An Equal Opportunity / Affirmative Action Employer —50% Recycled / 10% Post Consumer Paper '�'A 6 5 E. DETERMINATION OF AFF) --.TED ACREAGE AND BOND E�� Lm 1iitY1�V as ,off The following bond calculation ivorksheet is to be used to establish an appropriate bond (based upon a range oj'S500 to Sj.000 per ajjected acre).for each permitted mine site based upon the acreage approved by the Department to be affected during the life ojthe miningpermit Please insert the approximategcreaee, for each AFFECTED RECLAMATION CATEGORY ACREAGE COST/ACRE* Tailings/Sediment Ponds: '7S Ac. X $ /SQO`'` /Ac. Stockpiles: Ac. X $ /Ac. Wastepiles: Ac. X S L &6610 ` /Ac. Pro �re/HRo0 �c 1073 Ac. X $ AQ(50 Ci u /Ac. f y Mine Excavation: 9, 9 ► Ac. X $ =200 e` /Ac. Other: -'3,AAc. X $ %'6d0`'" /Ac. TOTAL AFFECTED AC.:Z 910 Ac. (TOTAL PERMITTED AC.: Ac.) RECLAMATION COST 0 � 6`' no LkoO Divide the TOTAL AFFECTED AC. above into the following two categories: a) affected acres that drain into proposed/existing excavation and/or b) affected acres that will be graded forpositive drainage where measures will be needed to prevent offsite sedimentation and sedimentation to onsite watercourses and wetlands. a) Internal Drainage Ac. b) Positive Drainage ta,Y Ac. Inflation Factor: 00 X $1,500.00 = $_ 33 9VO SUBTOTAL COST: $ 1,0q 9 `f O aJ I 0.02 X SUBTOTAL COST: $ X Permit Life (1 to 10 years): � INFLATION COST: z TOTAL COST = SUBTOTAL COST + INFLATION COST to the ueares 14- �S� Memo To: Judy Wehner From: Zahid Khan CC: Date: 9/20/2011 Re: North American Emerald Mine Permit, Alexander County, and Yadkin River Basin Application/Permit #: 02-06 The modification of recent submittal dated September 1, 2011 and received in MRO on September 6, 2011 with suspense date for comments September 26, 2011 was reviewed. I do not have any comments at this time. A copy of Ryan Kormanik comments is attached for your review. Please contact Ryan or me if you need additional information. RECEIVE® W 212011 LAND QUALITY SECTION r Khan, Zahid From: Kormanik, Ryan Sent: Wednesday, September 07, 2011 8:50 AM To: Khan, Zahid Subject: 02-06 Mine Review Zahid, It appears that all the concerns have been addressed. The one item which there was no mention was regarding the comment from DLQ about the reclamation bond amount. This needs to be clarified that was properly addressed. Ryan Kormanik Environmental Specialist Land Quality - MRO 704.663.1699 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. APlease consider the environment before printing this e-mail ECEIVED SFP 21 2011 LAND QUAUTY SECTION FW MINING CHECKLIST FOR ROUTING Ayyheamt'S Name: A-� , : Project Name: .� s i AyyhC./Fcmdt No.: County: Date Received: Reviewer. River Baffin SAM: ❑ New ❑ Renewal ❑ Modtficatian (tnsideyenntt boundaries) ❑ Mod$cation (ouutdcyermit boundaries) ❑ Tranf fer ❑ Release ❑ Partial Release :b AddtUN d rnformation ❑ Fee Needed: $ ❑ Fee Received: $ Please route entire applfcaffou Pacleape to: El Regional Office (2 complete coyus; attach the °IQS Regional o�ice Minim pyylicaUN Review checklist' to one copy and attach both the DWCZand DAQ Mining Apheation Review Farm, to the other copy; send both coyies to the Regional Engineer) Date: Routed Rec'd ❑ Division o f water Resources Date: Routed Rec d ❑ NC Wildlife Resources CommisSimi Date: Routed ReCd ❑ us Fish & Wildlife service Date: Routed RCC'd (only new ayylications and mod 6cation requests that add land to theyerndH Please route (frst 3 Popes of the application and anv location mans to: ❑ DkSfM of Parks & Recreation Date: Routed Reed ❑ NC Geological survey section Date: Routed Rec d ❑ Division of Marine Fisheries Date: Routed Reed ❑ DtvfM of soil & Water Conservation (yhts LEA) Date: Routed Recd (only new Wheations and modi$cation requests that add land to the yernat) ❑ Division of Archives & History (only new ayplieatims) ❑ other: Date: Routed Reed Date: Routed Reed * *SgCnse Date for Comments: (no later than 25 days from recc yt) 11 Please note the followtng: r 0 Freeman Environmental Consulting, LLC 411 Lower Hanging Rock Road Spruce Pine, NC 28777 Phone: 828-765-1515, Mobile 828-765-3571 e-mail: freemanenvironmen@bellsouth.net August 29, 2011 Judith Wehner, Assistant State Mining Specialist DENR— Land Quality Section Division of Land Resources 1612 Mail Service Center Raleigh, NC 27699-1612 RECEIVE® Subject: North American Emerald Mine; Mine Permit Renewal Application Permit Number 02-06, Request for information Alexander County, Yadkin River Basin Dear Mrs. Wehner, SEP 012011 LAND QUALITY :ANING PROGRAM In response to your request for information letter dated August 23, 2011 please find below and attached the requested information by the number as specified in your correspondence: 1. Clearly define which sediment diversions are associated with each trap • Sediment Trap ST-9 receives runoff flow from DB-6 which then flows into DB-5 and offsite after leaving the trap • Sediment Trap ST-1 receives runoff flow from D-3 and DB -1 which flows to SD- 1 then to DB-4 and on to SD-3. ST-1 also receives flow from D-2. • Sediment Trap ST-2 receives runoff flow from DB-2 which flow to SD-2, then to DB-3 and SD-4. ST-2 also receives flow from D-1. • Sediment Trap ST-4 receives runoff flow from DB-9. • Sediment Trap ST-3 receives runoff flow from diversions D4, D-5, C-2, D-6, D- 7, C-1, D-9, DB-7 & D-8. • Ditch D-10 does not flow into a sediment trap but into the pit. • Sediment Trap ST-7 receives runoff flow from the general area and is an existing structure. • Sediment Trap ST-8 receives runoff flow from DB-10 and DB-11. • Sediment Trap ST-5 receives runoff flow from DB-8 and D-11. • Sediment Trap ST 6 receives runoff flow from D-12 See attached maps MP-2 and MP-3 for more information on the diversion flows. 2. Clarify Limits of Clearing The existing County/Town road right of way was shown as the limits of clearing in the legend and has been relabeled in the legend on the attached maps. 3. The surface area of ST-3 should be increased due to impervious area of Parkin¢ lot. The trap should have a high C-Value and possible change to basin. Sediment Trap ST-3 is an existing trap/basin that receives runoff flow from an area that is stable and during a June, 2011 inspection it appeared to be functioning properly. The C- value for the gravel, paved and roof areas used to calculate the flows in ditches D-4, 5, 6 & 7 are in the higher range and appear to be appropriate. It should also be noted that the parking area is small and runoff flow from the west side of the parking area flows to the north and away from the area in question. 4. Ensure that ST-7 does not discharge into ST-S ST-7 is an existing trap/basin which discharges south from the basin and flows downhill to the east and into a natural draw. ST-8 discharges into a wooded area to the south. See attached trap calculation sheets with new spillway design. The summary sheet shows the minimum length, where the calculated length was shorter. Should you have questions or need further information, Nikki Street or I can be contacted at 828-765-1515 during normal business hours or at 828-765-3571 (cell) anytime. Sincerely/ � io as (Tom) Freeman CPESC /Freeman Environmental Consulting, LLC CC: CD, NAEM, LCE & FEC files North American Emerald Mine Sediment Trap Sediment Size Surface Storage Spillway Trap (in Ft) Drainage Area Area ftz Volume ft length ft ST-1 65x131x3 3.84 8515 25545 20.34 ST-2 60X13OX3 3.44 7800 23400 18.51 ST-3 65X125X3 6.59 8125 24375 18.88 ST-4 18X40X3 0.59 720 2160 4.00 ST-5 37X90X3 2.81 3330 9990 7.77 ST-6 20X75X3 1.2 1500 4500 4.00 ST-7 20X6OX3 0.99 1200 3600 4.00 ST-8 23X60X3 1 1380 4140 4.00 ST-9 9X20X2 0.11 180 360 4.00 * Minimum spillway lengths shown North American Emerald Mine Runoff Calculations for Trap ST- 1 Descriotion Arrpc C:-\/ah ip (..naf Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0 0.5 0 Grassland 0 0.35 0 Woodlands 0 0.2 0 Roadway ravel 3.84 0.7 2.688 0 0.95 0 Totals 3.84 2.688 C = 2.688 (coef) / 3.84 (acres) = 0.7 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.7 X 7.26 X 3.84 = 19.51488 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.7 X 5.68 X 3.84 = 15.26784 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.7 X 8.02 X 3.84 = 21.55776 cfs Sediment Trap Trap ST-1 Trapping Effeciency Drainage Area Acres 3.84 A = 0.01 X (Q) 19.51 = 0.1951 X 43560 = 8498.6 ft2 Required Basin Size 131'X65'X3'(minimum) Ft2 Surface area 8515 Ft3 Storage area 25545 Q for 25 year storm 21.56 Spillway Length 20.34 ft Based on Q = CLH'/2 Where C=3 and H=0.5' Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Descriotion ST- 2 Acres C-Value (:nef Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0 0.5 0 Grassland 0 0.35 0 Woodlands 0 0.2 0 Roadway ravel 3.44 0.7 2.408 Concrete, Asphalt & Buildings 0.04 0.95 0.038 Totals 3.44 C = 2.446 (coef) / 3.44 (acres) = 0.7110465 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.71105 X 7.26 X 3.44 = 17.75796 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.71105 X 5.68 X 3.44 = 13.89328 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.71105 X 8.02 X 3.44 = 19.61692 cfs 2.446 Sediment Trap Trap ST-2 Trapping Effeciency Drainage Area Acres 3.44 A = 0.01 X (Q) 17.76 = 0.1776 X 43560 = 7736.3 ft2 Required Basin Size 130'X60'X3'(minimum) Ft2 Surface area 7800 Ft3 Storage area 23400 Q for 25 year storm 19.62 Spillway Length 18.51 ft Based on Q = CLH'/2 Where C=3 and H=0.5' Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Description ST- 3 AcraQ is Cncf Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0 0.5 0 Grassland 6.16 0.35 2.156 Woodlands 0 Roadway ravel 0.43 0.7 0.301 Roofs and Paved areas 0.04 0.95 0.038 Totals 6.59 C = 2.495 (coef) / 6.59 (acres) = 0.3786039 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.3786 X 7.26 X 6.59 = 18.1137 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.3786 X 5.68 X 6.59 = 14.1716 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.3786 X 8.02 X 6.59 = 20.0099 cfs 2.495 Sediment Trap Trap ST-3 Trapping Effeciency Drainage Area Acres 6.59 A = 0.01 X (Q) 18.11 =FO-1-81-1-1 X 43560 Basin Size 125'X65'X3'(minimum) Ft2 Surface area 8125 Ft3 Storage area 24375 Q for 25 year storm 20.01 Spillway Length 18.88 ft Based on Q = CLH'/I Where C=3 and H=0.5' = 7888.7 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Description ST- 4 Arrae r._Vnh io rncf Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0 0.5 0 Grassland 0.539 0.35 0.18865 Woodlands 0 0.2 0 Roadway ravel 0.051 0.7 0.0357 0 0.95 0 C = 0.2244 (coef) / I otals 0.59 (acres) = 0.3802542 0.59 0.22435 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.38025 X 7.26 X 0.59 = 1.628781 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.38025 X 5.68 X 0.59 = 1.274308 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.38025 X 8.02 X 0.59 = 1.799287 cfs Sediment Trap Trap ST-4 Trapping Effeciency Drainage Area Acres 0.59 A = 0.01 X (Q) 1.63 = F—O-01-6-3-1 X 43560 Basin Size 18'X40'X3'(minimum) Ft2 Surface area 720 Ft3 Storage area 2160 Q for 25 year storm 1.8 Spillway Length 1.698 ft Based on Q = CLH3/2 Where C=3 and H=0.5' = 710.0 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Descriotion ST- 5 Arras (:_Va I in r_naf Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0.84 0.5 0.42 Grassland 1.42 0.35 0.497 Woodlands 0.55 0.2 0.11 Roadway ravel 0 0.7 0 0 0.95 0 Totals 2.81 C = 1.027 (coef) / 2.81 (acres) = 0.3654804 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.36548 X 7.26 X 2.81 = 7.45602 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.36548 X 5.68 X 2.81 = 5.83336 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.36548 X 8.02 X 2.81 = 8.23654 cfs 1.027 Sediment Trap Trap ST-5 Trapping Effeciency Drainage Area Acres 2.81 A = 0.01 X (Q) 7.46 = 0.0746 X 43560 Basin Size 37X90'X3'(minimum) Ft2 Surface area 3330 Ft3 Storage area 9990 Q for 25 year storm 8.24 Spillway Length 7.774 ft Based on Q = CLH'/I Where C=3 and H=0.5' = 3249.6 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Description ST- 6 Acres C-\/nh ie Rnaf Bare Sandy Soil level 0.1 0.45 0.045 Bare Soil (sloping) 0.35 0.5 0.175 Grassland 0.55 0.35 0.1925 Woodlands 0.2 0.2 0.04 Roadway ravel 0 0.7 0 0 0.9 0 Totals 1.2 C = 0.4525 (coef) 1 1.2 (acres) = 0.3770833 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.37708 X 7.26 X 1.2 = 3.28515 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.37708 X 5.68 X 1.2 = 2.5702 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.37708 X 8.02 X 1.2 = 3.62905 cfs 0.4525 Sediment Trap Trap ST-6 Trapping Effeciency Drainage Area Acres 1.2 A = 0.01 X (Q) 3.29 = 0.0329 X 43560 Basin Size 20'X75'X3'(minimum) Ft2 Surface area 1500 Ft3 Storage area 4500 Q for 25 year storm 3.63 Spillway Length 3.425 ft Based on Q = CLH3!2 Where C=3 and H=0.5' 1433.1 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Description �03M Acres C-Vahia CnPf Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0 0.5 0 Grassland 0.935 0.35 0.32725 Woodlands 0 0.2 0 Roadway ravel 0.055 0.7 0.0385 0 0.95 0 C = 0.3658 (coef) / 1 otals 0.99 (acres) = 0.3694444 0.99 0.36575 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.36944 X 7.26 X 0.99 = 2.655345 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.36944 X 5.68 X 0.99 = 2.07746 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.36944 X 8.02 X 0.99 = 2.933315 cfs Sediment Trap Trap ST-7 Trapping Effeciency Drainage Area Acres 0.99 A = 0.01 X (Q) 2.66 = 0.0266 X 43560 Basin Size 20'X60'XT(minimum) Ft2 Surface area 1200 Ft3 Storage area 3600 Q for 25 year storm 2.93 Spillway Length 2.764 ft Based on Q = CLH'/z Where C=3 and H=0.5' = 1158.7 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. North American Emerald Mine Runoff Calculations for Trap Descriotion ST- 8 Acres C-Value Coef. Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0.5 0.5 0.25 Grassland 0.5 0.35 0.175 Woodlands 0 0.2 0 Roadway ravel 0 0.7 0 0 0.9 0 C = 0.425 (coef) / Totals 1 1 (acres) = 0.425 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.425 X 7.26 X 1 = 3.0855 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.425 X 5.68 X 1 = 2.414 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.425 X 8.02 X 1 = 3.4085 cfs 0.425 Sediment Trap Trap ST-8 Trapping Effeciency Drainage Area Acres 1 A = 0.01 X (Q) 3.09 = 0.0309 X 43560 Basin Size 23'X60'X3'(minimum) Ft2 Surface area 1380 Ft3 Storage area 4140 Q for 25 year storm 3.41 Spillway Length 3.217 ft Based on Q = CLH'/2 Where C=3 and H=0.5' 1346.0 ft2 Required Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity. Sediment Trap Trap ST-9 Trapping Effeciency Drainage Area Acres 0.11 A = 0.01 X (Q) 0.4 = 0.004 X 43560 = 174.2 ft2 Required Basin Size 9'X20'X3'(minimum) Ft2 Surface area 180 Ft3 Storage area 540 Q for 25 year storm 0.44 Spillway Length 0.415 ft Based on Q = CLH'/I Where C=3 and H=0.5' Trap to be cleaned at the piont where the basin no longer functions well or is at 50% capacity North American Emerald Mine Runoff Calculations for Trap Description ST- 9 Arras C-\/ah is rnof Bare Sandy Soil level 0 0.45 0 Bare Soil (sloping) 0.11 0.5 0.055 Grassland 0 0.35 0 Woodlands 0 0.2 0 Roadway ravel 0 0.7 0 0 0.95 0 Totals 0.11 C = 0.055 (coef) / 0.11 (acres) = 0.5 i = Rainfall Intensity for 10 year, 1 day storm = 7.06 inches Q = (C)(i)(A) = 0.5 X 7.26 X 0.11 = 0.3993 cfs i = Rainfall Intensity for 2 year, 1 day storm = 5.21 inches Q = (C)(i)(A) = 0.5 X 5.68 X 0.11 = 0.3124 cfs i = Rainfall Intensity for 25 year, 1 day storm = 8.09 inches Q = (C)(i)(A) = 0.5 X 8.02 X 0.11 = 0.4411 cfs 0.055 _ f NCDENR North Carolina Department of Environment and Natural Resources Division of Land Resources Land Quality Section James D. Simons, PG, PE Director and State Geologist August 23, 2011 Certified Mail Return Receipt Requested 7008 1300 0000 1125 Mr. James K. Hill, Jr. North American Emerald Mines, Inc. 531 Duncan Lane Hiddenite, North Carolina 28636-9233 RE: North American Emerald Mine Permit No. 02-06 Alexander County Yadkin River Basin Dear Mr. Hill: Beverly Eaves Perdue, Governor Dee Freeman, Secretary We have reviewed the Renewal request you/your company submitted for the referenced mine site. However, the following information is needed to continue processing your application: Please clearly define which sediment diversions are associated with each trap. Some diversions appear to by-pass the intended trap. The limits of clearing appear to extend into the Esmeralda mine site. Please clarify on the map. 3. The surface area of ST-3 should be increased because of the imperviousness of the parking lot. The trap should have a high C-value and may need to be a basin rather than a trap. 4. Ensure that ST-7 does not discharge into ST-8. 5. All spillways must be designed to pass a 25 year 24 hour storm event. Revise the Sediment Trap Chart to reflect this. Please note, the Land Quality Section may request additional information, not included in this letter, as the mining application review progresses. 1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone 919-733-4574 / FAX: 919-733-2876 512 North Salisbury Street, Raleigh, North Carolina, 27604 - Internet:http://www.dlr.enr.state.nc,us/pages/landqualitysection.html An Equal Opportunity! Affirmative Action Employer -50% Recycled / 10% Post Consumer Paper Certified Mail Mr. Hill Page 2 The reclamation bond has been calculated using the information submitted on the revised mine map. The reclamation bond for this site would be $83,800.00. The calculation worksheet is enclosed for your review and the new bond or balance ($13,608.92.00) will be required prior to approval of this renewal request. For your convenience, I have enclosed a bond form, an assignment of a savings account form and irrevocable standby letter of credit form for your use in securing the required bond. The name on the security must be the same as the name appearing on the application for a mining permit, i.e., North American Emerald Mines, Inc.. In addition to one of these alternatives, you may, upon request, substitute a cash deposit. Please be advised that our review cannot be completed until all of the items listed above have been fully addressed. In order to complete the processing of your application, please forward two (2) copies of the requested information and the bond to my attention at the following address: Land Quality Section Division of Land Resources Department of Environment and Natural Resources 1612 Mail Service Center Raleigh, NC 27699-1612 As required by 15A NCAC 5B.0013, you are hereby advised that you have 180 days from the date of your receipt of this letter to submit all of the requested information. If you are unable to meet this deadline and wish to request additional time, you must submit information, in writing, to the Director clearly indicating why the deadline cannot be met and request that an extension of time be granted. If an extension of time is not granted, a decision will be made to grant or deny the mining permit based upon the information currently in the Department's files at the end of the 180-day period. Though the preceding statement cites the maximum time limit for your response, we encourage you to provide the additional information requested by this letter as soon as possible. Your prompt response will help us to complete processing your application sooner. Certified Mail Mr. Hill Page 3 Please contact me at (919) 733-4574 if you have any questions. Sincerely, Judith A. Wehner Assistant State Mining Specialist Land Quality Section Enclosures: Bond Forms Bond Calculation Worksheet cc: Mr. Zahid Khan Mr. Tom Freeman — via e-mail .. _...__.._.._......... ......._....... ..........�. r.. vr.II W1L E. DETERMINATION OF AFFECTED ACREAGE AND BOND mae-m Miner 0a-o�7 The following bond calculation ivorksheet is to be used to establish an appropriate bond (based upon a range of 3500 to S5.000 per affected acre) for each permitted mine site based upon the ucreage approved by the Department to be affected during the life of the mining permit. Please insert the a roximate acreage, br each aspect ofthe mining operation that you intend to affect during the life 01 this mininepermit (in addition please insert the appropriate reclamation cost/acre for each category from the Schedule of Reclamation Costs provided with this application form) OR you can defer to the Department to calculate vour bond for you based upon vour maps and standard reclamation costs: AFFECTED RECLAMATION RECLAMATION CATEGORY ACREAGE COST/ACRE* COST TailingslSedimentPonds: ,�S Ac. X $ ILOo` !Ac. = S (a a Stockpiles: Ac. X $ /Ac. _ $ Wastepiles: Ac. X S('GCo� /Ac. �— Pro c ss g Area/Haul Roads: %( %. Ac. X S A0 D" /Ac. to 44 f 40 = S Qe —� - 4-9 "69 +- , --- Mine Excavation: `i, 1 Ac. X $ 5-00' /Ac. g O; 5a5 � Other: A Ac. X S Imo'- /Ac. _ $ rj 6-60° TOTAL AFFECTED AC.: u�S r% Ac. (TOTAL PERMITTED AC.:Ac.) Divide the 104A1. A FEC IED AC, above into the following two categories: a) affected acres that drain into proposed/emsting excavation and/or b) affected acres that will be graded for positive drainage where measures will be needed to prevent offsite sedimentation and sedimentation to onsite watercourses and wetlands. a) Internal Drainage Ac. b) Positive Drainage t��q( Ac. Inflation Factor: 0 L� X $1,500.00 SUBTOTAL COST: S f091 vu b0 0.02 X SUBTOTAL COST: $ 80 X Permit Life (Ito 10 years): INFLATION COST: Lb TOTAL COST = SUBTOTAL COST + INFLATION COST = S �j e Ono ou Total Reclamation Bond Cost: S 14- Oi to the nearest ■ Wehner, J From: Wehner, Judy Sent: Tuesday, August 23, 2011 2:51 PM To: 'Thomas Freeman' Subject: NAEM Mine Attachments: 02-06 adi 2011.pdf Here's the letter I sent. Just a few things. Judy Wehner Assistant State Mining Specialist 1612 Mail Service Center Raleigh, North Carolina 27699-1612 (919)733-4574 (919) 715-8801 fax E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. APPLICATION FOR A MINING PERMIT NaEM p E. DETERMINATION OF AFFECTEDACREAGE AND BOND IU4e-m Miner The following band calculation ivorkshe.et is to be used to establish an appropriate of 'S 00 to S5, 000 per affected acre) for each bond (based upon as n ee permitted mine site based upon the Department to be affected during the life of the miningpermit. Please insert the acreage approved by the approximate acreage for each affect olthe mining operation, that you intend to affect during the Irfe of thrs mining permit (in adduron please insert the appropriate reclamation cost/acre or each cateoory 1,om the Schedule ot Reclamation Costs rovided with this a lication formi OR you can defer to the De artment to calculate your bond for you based upon vour moos and standard reclamation costs: AFFECTED RECLAMATION CATEGORY ACREAGE COST/ACRE* RECLAMATION COST Tailings/Sediment Ponds:?5 Ac. X $ 0• /Aa = $ y m- 0,1_ Stockpiles: Ac. X $ /Ac. _ $ Wastepiles: 1, Ac. X $ p' =20" /Ac. _ $ 300 Ptocfls g Area/Haul Roads: /0, 3 Ac. X $ �jQV °� /Ac = $ W_Aoa Mine Excavation:_ Ac. X $ �a�o ° /Ac. Other:,Ac. X $ TOTAL AFFECTED AC.: Ac, (TOTAL PERMITTED AC.: 31Q Ac.) • _ �� _..� h� . auuvc uno uie following two categories: a) affected acres that drain into proposed/existing excavation and/or b) affected acres that will be graded for positive drainage where measures will be needed to prevent offsite sedimentation and sedimentation to onsite watercourses and wetlands. a) Internal Drainage Ac. b) Positive Drainage __ aai%, Ac. Inflation Factor: X $1,500.00 = $ 3 SUBTOTAL COST: S LQ jc 6 00 0.02 X SUBTOTAL COST: $ q oaJ X Permit Life (1 to 10 vears): /p INFLATION COST: S- TOTAL COST = SUBTOTAL COST + INFLATION COST = $__ �j 9,p9, c', Total Reclamation Bond Cost: $ 9a Rob d� (round down to the nearest $100.00) _,4_ Memo To: Judy Wehner From: Zahid Khan CC: Date: 8/1612011 Re: North American Emerald Mine Permit, Alexander County, and Yadkin River Basin Application/Permit #: 02-06 The modification of recent submittal dated July 26, 2011 and received in MRO on July 28, 2011 with suspense date for comments August 19, 2011 was reviewed. I have the following comments. 01 Please increase the surface area for St-3. The equipment /parking area should have a high value of "C". The ST-3 should be sediment basin instead of sediment trap. 20 Please make sure ST-7 should not outlet in ST-8. QThe spillway capacity should be designed based upon the 25 year-24 hour storm. A copy of Ryan Kormanik comments is attached for your review. Please contact Ryan or me if you need additional information. RECEIVED ails 18 2011 LAND QUALITY SECTION Khan, Zahid From: Kormanik, Ryan Sent: Monday, August 01, 2011 12:54 PM To: Khan, Zahid Subject: North American Emerald Mine Review Comments (02-06) Zahid, Following are my review comments. I was at the site on April 27, 2011 for the annual inspection. 1. Flow from SD-2 appears would bypass SD-4 to send flow into ST-2, but would flow to SD-3 into ST-1. Provide Iculations to show ST-1 can handle this Flow or provide adequate means to ensure flow from SD-2 would be directed to ST-2. The "Proposed Maximum Clearing Limits" extend onto the Esmeralda Exploration International site. Page 2 of the permit application should reflect the new 'Total Permitted Acreage" as 94.36.44M With the changes in the affected areas table, does this change the bond amount? If you have any questions please feel free to contact me. Ryan Kormanik Environmental Specialist Land Quality - MRO 704.663.1699 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. APlease consider the environment before printing this e-mail