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HomeMy WebLinkAboutNCG020931_COMPLETE FILE - HISTORICAL_20180917NORTH CAROLINA ..� Department of Environmental Qua' �z u STORMWATER DIVISION CODING SHEET NCG PERMITS PERMIT NO. /V L& ,pa p931 DOC TYPE 9-14tSTORICALFILE ❑ MONITORING REPORTS DOC DATE ❑ 3olU v � l 7 YYYYMMDD Permit Number NCG020931 Program Category NPDES SW Permit Type Mining Activities Stormwater Discharge COC RECEIVED Primary Reviewer alaina.morman S E P1 7 2018 Coastal SWRule CENTRAL FILES DVVR SECTION Permitted Flow Facility Central Files, APS _ SWP _ 9/1212018 Permit Tracking Slip Status Project Type Active New Project Version Permit Classification 1.00 COC Permit Contact Affiliation Facility Name Major/Minor Region Whitley Sorrow Pit Minor Raleigh Location Address County Brodgen Rd Johnston Facility Contact Affiliation Smithfield NC 27577 Jimmy Ray Whitley Jr. Owner 4187 US Hwy 70 E Owner Smithfield NC 27577 Owner Name Owner Type Jimmy Ray Whitley Jr Non -Government Owner Affiliation Jimmy Ray Whitley Jr. Owner 4187 US Hwy 70 E DatesfEvents Smithfield NC 27577 Scheduled Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 9/12/2018 5/21/2018 9/12/2018 9/12/2018 9/30/2020 Regulated Activities Requested /Received Events Mining process wastewater RO staff report received RO staff report requested Additional information requested 7119/18 Additional information received 8115f18 Outfall 1 Waterbody Name Streamindex Number Current Class Subbasin Polecat Branch 27A6 C;NSW 03-04-02 Outfall 2 Waterbody Name Streamindex Number Current Class Subbasin Polecat Branch 27-46 C;NSW 03-04-02 Energy. Mineral & Land Resources ENVIRONMENTAL QUALITY September 12, 2018 Mr. Jimmy Ray Whitley 4187 US Hwy 70 East Smithfield, NC 27577 ROY COOPER Governor MICHAEL S. REGAN Se—rary WILLIAM E. (TOBY) VINSON. JR. Interim airrcror Subject: General Permit No. NCG020000 Whitley Borrow Pit COC No. NCGO20931 Johnston County Dear Mr. Whitley: In accordance with your application for a discharge permit received on May 21, 2018, we are forwarding herewith the subject certificate of coverage (COC) to discharge under the subject state — NPDES general permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Please take notice that this certificate of coverage is not transferable except upon approval of the Division of Energy, Mineral, and Land Resources. The Division of Energy, Mineral, and Land Resources may require modification or revocation and reissuance of the certificate of coverage. Consideration must be given to the fact that mine dewatering at your site has the potential to impact adjacent wetlands. The specific requirements for mine dewatering at facilities near wetlands can be found in Part IV, Section D of your permit. If, at any time, pumping activities occur onsite, you must obtain a Division approved Pumping Operation and Monitoring (POM) Plan, Pumping mine dewatering wastewater without Plan approval will be subject to enforcement action. Contact Thad Valentine at the Raleigh Regional Office at (919) 791-4220 for assistance with your POM Plan. Please note that mine dewatering wastewater includes wet pit overflows caused.solely by direct rainfall and groundwater seepage for this type of mining operation. Any discharge of this water (and any stormwater commingled with it) is subject to the effluent limitations in this permit. Please be aware that there is a Total Maximum Daily Load (TMDL) in effect for this watershed. Information about this TMDL can be found on Division of Water Resources' website: https://dN.nc.gov/about/divisions/water-resourceglplannin modeling-assessmentltmdls. In Part I, Section A, the General Permit explains that for discharges to watersheds affected by a TMDL, coverage under this permit may depend on the site demonstrating that discharges have no reasonable potential to violate applicable water quality standards for specified pollutants. Nothing Compares�, State of North Carolina I Environmental Quality I Energy. Mineral and Land Resources 512 N. Salisbury Street 1 1612 Mall Service Center I Raleigh. North Carolina 27699-1612 919 707 9200 Per the requirements of the Neuse Riparian Buffer Rule, all stormwater drainage to stream buffers, from portions of this site that have been constructed after July 22, 1997, must meet diffuse flow requirements per 15A NCAC 2B .0233. Diffuse flow requirements are described in Chapter 8 of the North Carolina Stormwater BMP Manual, available at: http://desk.nc.gov/about/divisions/energy- mineral-land-resources/energ -mineral-land-permit-guidance/stormwater-bmp-manual. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources, the Coastal Area Management Act, or any other federal or local government permit that may be required. If you have any questions concerning this permit, please contact Alaina Morman at telephone number (919) 707-9236 or by email alaina.monnanL@ncdenr.gov. cc: Raleigh Regional Office I B. Denton Stormwater Program Files DWQ Central Files Sincerely, for William E. (Toby) Vinson, Jr., P.E., CPM, Interim Director Division of Energy, Mineral, and Land Resources Nothing Compares, State of North Carolina I Environmentat Quallty I Energy. Mineral and land Resources 512 N. 5alishury Street 1 1612 Mail Service Center I Raleigh. North Carolina 27699.1612 919 707 9200 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES GENERAL PERMIT NO. NCG020000 CERTIFICATE OF COVERAGE NO, NCGO20931 STORMWATER & WASTEWATER DISCHARGES NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Whitley Borrow Pit is hereby authorized to discharge stormwater and mine dewatering wastewater from a facility located at Brogden Road (35.43873,-78.28113) Smithfield Johnston County to receiving waters designated as Polecat Branch, class C;NSW waters in the Neuse River Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, 11I, IV, V, and VI of General Permit No. NCG020000 as attached. This certificate of coverage shall become effective September 12, 2018. This Certificate of Coverage shall remain in effect for the duration of the General Permit. Signed this 12th day of September 2018. for William E. (Toby) Vinson, Jr., P.E., CPM Interim Director, Division of Energy, Mineral and Land Resources By the Authority of the Environmental Management Commission k)Ck0 oRt90 - FOR AGENCY USki LY Division of Energy, Mineral and Land Resources 1 Year lvsoaii� Land Quality Section — Stormwater Permitting Program I Cerliftcateotc National Pollutant Discharge Elimination System � `t'e`> +` I Amount NCG020000 ]'crmir Assigned to NOTICE OF INTENT — General Permit Application MAY 21 1019 National Pollutant Discharge Elimination System application for coverage under General FF$ i "UNDNCG020000: 370RMIN,q FRM to PERM/ STORMWATER AND/OR WASTEWATER DISCHARGES associated with activities classified as: SIC (Standard Industrial Classification) Code - 14XX Mineral Mining Industry (except as specified below) and like activities The following activities are included: • Active or inactive mining operations (including borrow pits —except for NCDOT borrow pits) that discharge stormwater contaminated with or that has come in contact with, any overburden, raw material, intermediate products, finished products, byproducts or waste products located on the site of such operations; • Stormwater from vehicle maintenance activities (VMA) at mining operations; • Overflow from facilities that recycle process wastewater; and/or • Mine dewatering (wastewater) The following activities are specifically excluded from coverage under this General Permit: • Stormwater discharges associated with peat mining, coal mining, and metal mining; • Stormwater discharges from mining operations which are intermixed on site with stormwater from concrete operations; • Stormwater discharges associated with oil and gas extraction operations; and • Stormwater discharges associated with tourist gem mines • NCDOT borrow pits (covered under individual permit NCS000150) The following discharges are covered by NPDES general permit NCG520000 instead of NCG020000: Point source discharges of stormwater and wastewater from in -stream sand mining operations (sand dredging or dipping operations) are covered instead by NPDES General Permit NCG520000, administered by the Division of Water Resources NPDES Wastewater Permitting Program. Please contact DWR for more information. Please print or type all entries in this application form. 1) Mailing address of owner/operator (official address to which all permit correspondence will be mailed): Legal Owner Name Jimmy Ray Whitley (Attach the most recent Annual Report to the NC Secretary of State showing the current legal name of the corporation or entity. Alternatively this permit can be given to an individual or government authority. This name must be the same name as appears on the Division of Energy, Mineral, and Land Resources' Mining Permit. ) Signee's Name (as signed for in question 41. at end) Jimmy Ray Whitley, Street Address 4187_US Hwy 70 E. City Smithfield State NC ZIP Code 27577 Telephone No. 919-524-2222 E-mail ymcoaearthlink.net Alternate Contact Name* Jimmy Ray Whitley Jr. E-mail (if different) Alternate Contact Telephone (if different) *Alternate contact should be affiliated with the Owner/Operator. Consultant information can be provided in. question 5. Page 1 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.E. 2) Location of facility producing discharge: Facility Name Whitley Borrow Pit Facility Street Address Bro den Rd. No street address Facility City Smithfield State NC ZIP Code 27577 Facility County Johnston Facility Contact Jimmy Ray Whitley Telephone No. 919-524-2222 Fax -.none Contact E-mail jvmco@earthlink.net 3) Physical Location Information: Please provide a narrative description of how to get to the facility (use street names, state road numbers, and distance and direction from a roadway intersection). The site is accessed from an existing dirt/gravel road off Brogden Rd (SR1007). The access road is from the south side of Bro den Rd at the intersection of Bro den Rd. and Pollard Rd. 4) Facility Location Coordinates: Latitude 35.43873 N Longitude 78.28113 W (degrees / minutes I seconds or decimal degrees) 5) Consultant Information (if applicable): Consultant: T. Patrick Shillinaton. P.E. Consulting Firm: Engineering &_Environmental Science Co. Mailing Address: 3008 Anderson Dr. Suite 102 City: _Raleigh State: NC Zip Code: 27609 Phone: (919) 781-7796 Fax: (919) 781-7798 E-mail: e2s(cDbellsouth.net Permits: 6) This NPDES Permit Application applies to which of the following: X New or Proposed Facility ❑ Existing 7) Standard Industrial Classification: (Optional) Staple Business Card Here Date operation is to begin: Summer 2018 Date began mining: Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial activity at this facility SIC Code: 1 4 4 2 8) Provide a description of the types of minerals mined at this facility: Sand and fill/borrow soil 9) Is this a PROCESSING -ONLY facility for materials mined elsewhere? X No ❑ Yes 10) Is this an inactive mine site? X No ❑ Yes If yes, have you certified to the Stormwater Permitting Program that all portions of the site where clearing, grading, and/or excavation activities have occurred have been stabilized? Page 2 of 12 SWU-NCG02-NOI Last revised 9/10/2015 r , NCG020000 N.0.1. ❑ No ❑ Yes (If yes, the site may be eligible for "Dormant Status" and reduced BMP inspections. See the General Permit.) 11) Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section? X No If no, please indicate the status of the Mining Permit application: _Mining permit application has been submitted and is being reviewed by NCDEQ_ ❑ Yes If yes, please provide the Mining Permit number: Also provide a copy of the DEMLR Mining Permit with this NPDI=S application. 12) Does this facility have any other NPDES permits? X No ❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility: 13) Are you applying for a discharge permit in the same location as a previously permitted mine? X No ❑ Yes If yes, specify permit number and mine name if known: 14) Does this facility have any Non -Discharge permits from DWR (e.g., recycle permits)? X No ❑ Yes if yes, list the permit numbers for all current Non -Discharge permits for this facility: 15) Does total area of this mine site include ready -mixed concrete plant andlor asphalt plant areas? X No ❑ Yes If yes, do they have separate NPDES stormwater permits? ❑ No ❑ Yes (provide permit number(s) ) If not owned by the same company, who is the owner? Development Activities and Buffers: 16) Will this mining operation precede development activities at this site? X No ❑ Yes 17) Is this mine located within one of the 20 Coastal Counties, and will it add more than 10,000 ft2 of impervious surface? ❑ Yes (to both) ❑ No, this mine site IS in one of the 20 Coastal Counties but will NOT add 10,000 ftz of impervious surface. X No, this mine site is NOT in any of the 20 Coastal Counties. If this site is in one of the 20 Coastal Counties, you may be required to apply for an additional State Stormwater Permit. Check with your local Regional Office (see contact information and checklist below). Page 3 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. 18) Is this mine located the Neuse, Tar -Pamlico, or Catawba River Basins, or the Randleman or Jordan Water supply Watersheds? O ❑ No WIC X Yes If yes, what size stream buffers are included on site? 65 ft. You must show buffers on site plans. Also include information and plans showing diffuse flow through buffers as required. Discharge Points, Receiving Waters & Wetlands: 19) Receiving waters: What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater and/or wastewater discharges will end up in? Unnamed tributary to Polecat Branch To find the waterbody, please see the "MAPS" tab on http.ltportal.ncdenr.orgtweblwg for a map of NC Surface Waterbody Classifications. Receiving water classification(s) for the waters: C;NSW If the site will discharge to a separate storm sewer system, name the operator of the separate storm sewer system (e.g. City of Raleigh municipal storm sewer). NIA Discharge of wastewater to receiving waters classified as WS-II through WS-V, or SA, Must be approved by the Division of Water Resources (DWR) or Division of Marine Fisheries (DMF). DEMLR cannot grant coverage under NCG020000 without that approval. Also be advised that no new discharges of wastewater are permitted in receiving waters classified as WS-1 or freshwater ORW. Wastewater discharges to saltwater ORW will not be approved under General Permit NCG02 but may be eligible for an individual permit. 20) Will this mine site discharge wastewater or stormwater to waters classified as High Quality Waters (HQW), Primary Nursery Areas (PNA), Trout (Tr) waters, or a class with a symbol like "+" or "@" that denotes a special management strategy is in place? X No ❑ Yes, PNA* ❑ Yes, HQW+ ❑ Yes, includes "+" or ❑ Yes, Trout (Tr) 21) Will this mine site discharge wastewater or stormwater to waters classified as Shellfish (SA) waters? X No ❑ Yes, SA` 'For questions 19-20, be advised that the 111CG02 General Permit limits the discharge volume of total combined wastewaters to 50 percent of the receiving water in -stream flow under 7Q10 conditions in HQ waters (PNA and SA waters are considered HQW by definition). You maybe required to contact USGS to obtain a 7Q10 flow. Page 4 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. 22) Will this mine site discharge wastewater or stormwater to impaired waters, or to waters with an approved "Total Maximum Daily Load" (TMDL)? To find impaired waters, please see the "Impaired Waters" reap on the "MAPS" tab on hftp://portal.ncdenr.org/web/wq. To find approved TMDLs in North Carolina, please see DWR's Water Planning Section website: http:l/portal.ncdenr.org/web/wglps/mtu/tmdlltmd[s. X No ❑ Yes, these waters are impaired for (list pollutants): ❑ Yes, these waters have a TMDL for (list pollutants): , nGOi1 inn Yes, +iietr. ,,s a, TMOL , st 4e: &0- N �• r� en_� Page 5 of 12 5WU-NCG02-NOI Last revised 9/1012015 NCG020000 N.O.I. 23) List discharge points (outfalls) that convey discharge from the mine site (both on -site and off -site) and location coordinates. Attach additional sheets if necessary, or note that this information is specified on the site plan. Include proposed maximum daily flow rate for each wastewater outfall. You must show all discharge points clearly on the submitted site plan. Be advised that NCDEQ may require you to apply for an individual permit, based on proposed discharge rates and receiving stream conditions (low flows, impairments, etc.) W Ki Stormwater Stormwater ter Outfall No. 1 Latitude (deg reeslminuteslseconds or decimal degrees): 35.439249 N Longitude (degreeslminuteslseconds or decimal degrees):-78.280432 W WW Stormwater Outfall No. 2 t-afitude (deg reeslminuteslseconds or decimal degrees): 35.438947 N Longitude (degrees/minutes/seconds or decimal degrees):-78,282336 W Stormwater Outfall No. Latitude (degrees/minutes/seconds or decimal degrees): N Longitude (degrees/minutes/seconds or decimal degrees): W Stormwater Outfall No. Latitude (degrees/minutes/seconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Stormwater Outfall No. Latitude (deg reeslminuteslseconds or decimal degrees): N Longitude (degrees/minutes/seconds or decimal degrees): W Stormwater Outfall No. Latitude (degrees/minutes/seconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Mine Dewatering Mine Dewatering (Wastewater) Outfall No. Proposed maximum flow rate: Latitude (degrees/minutes/seconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Mine Dewatering (Wastewater) Outfall No. Proposed maximum flow rate: Latitude (degrees/minutes/seconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Process Wastewater Process Wastewater Outfall No. Wastewater Description: Proposed maximum flow rate: Latitude (deg reeslminuteslseconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Process Wastewater Outfall No. Wastewater Description: Proposed maximum flow rate:,. Latitude (deg reeslminuteslseconds or decimal degrees): N Longitude (deg reeslminuteslseconds or decimal degrees): W Page 6 of 12 SWU-NCG02-NOI Last revised 9/10/2015 35 0 ;-D, N OONFF NCG020000 N.O.I. 24) Help us understand what will happen to the dewatering water at this mine site: X N/A — this mine is not dewatering at all and will not dewater in the future. a) Will this mine be dewatering and discharging to waters of the state? (Answer only if dewatering) ❑ No ❑ Yes • If yes, where to? ❑ Surface Waters and/or Wetlands (on -site or off -site) ❑ Other (on -site or off -site) Describe: b) Will this mine be dewatering but not discharging to waters of the state? (Answer only if dewatering) ❑ No ❑ Yes If yes, explain how you are dewatering, and where that water will be directed: 25) Are there wetlands or surface waters within 400' of the mine pit perimeter? ❑ No X Yes If yes, what distance are they from the mine pit perimeter? 80 feet. 26) Will mining operations require dewatering near wetlands or other waterbodies, and will dewatering potentially impact any wetlands or other waterbodies? X No, dewatering will not occur near (within 400') of wetlands or other waterbodies (e.g,, streams, lake, etc.) ❑ Yes, dewatering will be near wetlands or other waterbodies Wetlands must be CLEARLY DELINEATED on the site plan. Mine dewatering activities that have the potential to drain wetlands or otherwise impact surface water or groundwater MUST develop and implement a Pumping Operation and Monitoring (POM) Plan that has been approved by the Department. For sites that may drain wetlands — approval of a POM Plan may be required prior to coverage under this permit. The POM Plan should be submitted to the appropriate Regional Office and in all cases must be approved prior to operation. The plan shall include, but is not limited to: (1) Groundwater monitoring strategies to demonstrate the effect of pumping and to establish any pumping regime necessary to reduce impacts, and (2) Detailed plans to maintain surrounding hydrology and respective monitoring to demonstrate compliance. See checklist at the end of the application. Contact the Regional Office for questions specific to your mine. 27) Have you been required to obtain 404/401 Certification permits? X No ❑ Yes if yes, please briefly describe below (include information such a required mitigation, BMPs, setbacks, and/or O&M plans for on or off site wetlands or other pertinent information). Attach other sheets as necessary: Page 7 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. 28) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers? X No ❑ Yes If yes, please attach to application submission. Stormwater BMPs and Vehicle Maintenance: 29) Does this facility employ best management practices for stormwater control? ❑ No X Yes If yes, please briefly describe: Sediment basins with skimmers/outlet pipes will be employed as erosion control/stormwater BMPs 30) Does this facility have a Stormwater Pollution Prevention Plan? X No ❑ Yes If yes, when was it implemented? 31) Are vehicle maintenance activities (VMA) occurring or planned at this mine site? X No ❑Yes, If yes, will VMA area runoff discharge into the wastewater treatment system(s)? ❑ No, VMA runoff will discharge separately through a stormwater outfall ❑ Yes, VMA runoff will drain back to the mine pit or other wastewater system 41 Wastewater Treatment Facilities: 32) Will mine dewatering occur? (Yes, we are asking about dewatering again.) ❑ No ❑ Yes If yes, will the mine discharge this water? 33) Will this facility wash mined materials? ❑ No ❑ Yes If yes, will the mine -discharge this water? 34) Will discharges of -process wastewater treatment systems occur (including possible recycle system overflows)? - ❑ No ❑ Yes If yes, describe what kind of systems: 35) Will this facility employ chemical additives to flocculate suspended solids? ❑ No ❑ Yes If yes, provide the name, manufacturer, and the quantity of average daily usage of the chemical additive (if known):, Note: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North Carolina: http://portaLncdenr.org/web/Ir/construction-stormwater 36) Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that exceed the 10-yr, 24-hr rainfall event? ❑ Yes If yes, which treatment systems are those? Page 8 of 12 5WU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. ❑ No, all wastewater treatment facilities will discharge more frequently (i.e., during smaller rain events) 37) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain? El No ❑ Yes ` r 38) A Wastewater treatment alternatives review is required by 15A NCAC 2H.0105 (c)(2) for any new or expanding water pollution control facility discharges in North Carolina. You may attach additional sheets. List the types of wastewater this mine site will discharge: ❑ Mine Dewatering ❑ Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater) a) What wastewaters were considered for this alternatives review? ❑ Dewatering ❑ Process WW b) Connection to a Municipal or Regional Sewer Collection System: i) Are there existing sewer lines within a one -mile radius? ..................................... ❑ Yes ❑ No (1) If Yes, will the wastewater treatment plant (WVVfP) accept the wastewater? .... ❑ Yes ❑ No (a) If No, please attach a letter documenting that the WVVTP will not accept the wastewater. (b) If Yes, is it feasible to connect to the WWTP? Why or why not?* c) Closed -loop Recycle System (meets design requirements of 15A NCAC 2T .1000): i) Are you already proposing a closed -loop recycle system (CLRS)? ......................... ❑ Yes ❑ No (1) If Yes, for what type of wastewater at this mine site? ❑ Dewatering ❑ Process WW (2) If No, is this option technologically feasible (possible)? Why or why not?* (3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?* (4) What is the feasibility of building a CLRS compared to direct surface water discharge?* d) Surface or Subsurface Disposal System (e.g., spray irrigation): ..i) Is a surface or subsurface disposal technologically feasible (possible)? ..................... ❑ Yes ❑ No Why or Why not?* ii) Is a surface or subsurface disposal system otherwise feasible to implement?*............ ❑ Yes ❑ No Why or Why not?* Page 9 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct discharge to surface waters?* e) Direct Discharge to Surface Waters: is discharge to surface waters the most environmentally sound alternative of all reasonably cost-effective options for the wastewaters being considered?* ❑ Yes ❑ No f) If this review included all wastewater discharge types, would excluding some types (e.g. mine dewatering) make any of the above non -discharge options feasible for some of the wastewaters? ❑ Yes ❑ No * Feasibility should take into account initial and recurring costs. You may be asked to provide further information to support your answers to these questions after the initial review. Other: 39) Hazardous Waste: a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility? X No ❑ Yes b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of hazardous waste? X No ❑ Yes c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of hazardous waste? X No ❑ Yes d) If you answered yes to questions b. or c., please provide the following information: Type(s) of waste: How is material stored: Where is material stored: How many disposal shipments per year: Name of transport 1 disposal vendor: _ Vendor address: 40) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? (See permit text for secondary containment requirements.) X No ❑ Yes 41) Does your site have an active landfill within the mining permit boundary? X No ❑ Yes If yes, specify type: ❑ LCID (Land Clearing and Inert Debris) ❑ Other: Page 10 of 12 SWU-NCG02-NOI Last revised 9/1012015 NCG020000 N.O.I. 28) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers? X No ❑ Yes If yes, please attach to application submission. Stormwater BMPs and Vehicle Maintenance: 29) Does this facility employ best management practices for stormwater control? ❑ No X Yes If yes, please briefly describe: Sediment basins with skimmers/outlet pipes will be employed as erosion control/stormwater BMPs 30) Does this facility have a Stormwater Pollution Prevention Plan? X No ❑ Yes If yes, when was it implemented? 31) Are vehicle maintenance activities (VMA) occurring or planned at this mine site? X No ❑Yes, If yes, will VMA area runoff discharge into the wastewater treatment system(s)? ❑ No, VMA runoff will discharge separately through a stormwater outfall ❑ Yes, VMA runoff will drain back to the mine pit or other wastewater system Wastewater Treatment Facilities: 32) Will mine dewatering occur? (Yes, we are asking about dewatering again.) ❑ No X Yes II yes, will the mine discharge this water? Yes 33) Will this facility wash mined materials? X No ❑ Yes If yes, will the mine discharge this water? 34) Will discharges of process wastewater treatment systems occur (including possible recycle system overflows)? ❑ No X Yes If yes, describe what kind of systems: The two (2) on -silo sediment basin BMPS 35) Will this facility employ chemical additives to flocculate suspended solids? X No ❑ Yes If yes, provide the name, manufacturer, and the quantity of average daily usage of the chemical additive (if known): Note: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North Carolina: htip://portal.ncdenr.org/web/ir/construction-stormwater 36) Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that exceed the 10-yr, 24-hr rainfall event? ❑ Yes If yes, which treatment systems are those? X No, all wastewater treatment facilities will discharge more frequently (i.e., during smaller rain events) Page B of 12 SWU-NOG02-NOI Last revised 9/10/2015 NCG020000 N,O.I. 24) Help us understand what will happen to the dewatering water at this mine site: ❑ NIA — this mine is not dewatering at all and will not dewater in the future. a) Will this mine be dewatering and discharging to waters of the state? (Answer only if dewatering) ❑ No X Yes If yes, where to? X Surface Waters and/or Wetlands (on -site or oft -site) ❑ Other (on -site or off -site) Describe: b) Will this mine be dewatering but not discharging to waters of the state? (Answer only if dewatering) X No ❑ Yes If yes, explain how you are dewatering, and where that water will be directed: 25) Are there wetlands or surface waters within 400' of the mine pit perimeter? ❑ No X Yes If yes, what distance are they from the mine pit perimeter? 80 feet. 26) Will mining operations require dewatering near wetlands or other waterbodies, and will dewatering potentially impact any wetlands or other waterbodies? ❑ No, dewatering will not occur near (within 400') of wetlands or other waterbodies (e.g., streams, lake, etc.) X Yes, dewatering will be near wettands or other waterbodies Wetlands must be CLEARLY DELINEATED on the site plan. Mine dewatering activities that have the potential to drain wetlands or otherwise impact surface water or groundwater MUST develop and implement a Pumping Operation and Monitoring (POM) Plan that has been approved by the Department. For sites that may drain wetlands — approval of a POM Plan may be required prior to coverage under this permit. The POM Plan should be submitted to the appropriate Regional Office and in all cases must be approved prior to operation. The plan shall include, but is not limited to: (1) Groundwater monitoring strategies to demonstrate the effect of pumping and to establish any pumping regime necessary to reduce impacts, and (2) Detailed plans to maintain surrounding hydrology and respective monitoring to demonstrate compliance. See checklist at the end of the application. Contact the Regional Office for questions specific to your mine. 27) Have you been required to obtain 404/401 Certification permits? X No ❑ Yes If yes, please briefly describe below (include information such a required mitigation, BMPs, setbacks, and/or O&M plans for on or off -site wetlands or other pertinent information). Attach other sheets as necessary: Page 7 of 12 SWU-NGG02•NQI Last revised 9/10/2015 �e\/i&,A NCG020000 N.O.I. iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct discharge to surface waters?" Stormwater will pass through a sediment basin. No direct discharge will occur. e) Direct Discharge to Surface Waters: Is discharge to surface waters the most environmentally sound alternative of all reasonably cost-effective options for the wastewaters being considered?' X Yes ❑ No f) If this review included all wastewater discharge types, would excluding some types (e.g. mine dewatering) make any of the above non -discharge options feasible for some of the wastewaters? ❑ Yes X No ' Feasibility should fake into account initial and recurring costs. You may be asked to provide further information to support your answers to these questions after the initial review. Other: 39) Hazardous Waste: a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility? X No ❑ Yes b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of hazardous waste? X No ❑ Yes c) Is this facility a Large Quantity Generator (1000 kg, or more of hazardous waste generated per month) of hazardous waste? X No ❑ Yes d) If you answered yes to questions b. or c., please provide the following information: Type(s) of waste: How is material stored: Where is material stored: How many disposal shipments per year: Name of transport / disposal vendor: Vendor address: 40) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? (See permit text for secondary containment requirements.) X No ❑ Yes 41) Does your site have an active landfill within the mining permit boundary? X No ❑ Yes If yes, specify type: ❑ LCID (Land Clearing and Inert Debris) ❑ Other: Pagel 0 of 12 SWU-NCG02-NOI Last revised M012015 NCG020000 N.O.I. 37) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain? X No ❑ Yes 1 38) A WaSteWatel' treatment alternatives review is required by 15A NCAC 2H.0105 (c)(2) for any new or expanding water pollution control facility discharges in North Carolina. You may attach additional sheets. List the types of wastewater this mine site will discharge: X Mine Dewatering X Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater) a) What wastewaters were considered for this alternatives review? X Dewatering X Process WW b) Connection to a Municipal or Regional Sewer Collection System: Are there existing sewer lines within a one -mile radius? ..................................... ❑ Yes X No (1) If Yes, will the wastewater treatment plant (WWTP) accept the wastewater? .... ❑ Yes ❑ No (a) If No, please attach a letter documenting that the WWTP will not accept the wastewater. (b) If Yes, is it feasible to connect to the WWTP? Why or why Trot?' c) Closed -loop Recycle System (meets design requirements of 15A NCAC 2T .1000): i) Are you already proposing a closed -loop recycle system (CLRS)? ......................... ❑ Yes X No (1) If Yes, for what type of wastewater at this mine site? X Dewatering X Process WW (2) If No, is this option technologically feasible (possible)? Why or why not?' CLRS is not feasible because the waste water is stormwater. Stormwater is cumulative and can not be recirculated. (3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?' CLRS is not feasible because the waste water is stormwater. Stormwater is cumulative and can not be recirculated. (4) What is the feasibility of building a CLRS compared to direct surface water discharge? CLRS is not feasible because the waste water is stormwater. Stormwater is cumulative and can not be recirculated. d) Surface or Subsurface Disposal System (e.g., spray irrigation): i) Is a surface or subsurface disposal technologically feasible (possible)? ..................... ❑ Yes X No Why or Why not?' Not feasible due to the required area for the surface and subsurface disposal. ii) Is a surface or subsurface disposal system otherwise feasible to implement?`............ ❑ Yes X No Why or Why not?' For a domestic waste disposal system with low volumes of liquid, but not for a large volume of stormwater. Page 9 of 12 SWU=NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. Final Checklist: This application will be returned as incomplete unless all of the following items have been included and t initialed for. Please show that the following required information has been included by initialing in each space below. ipk Fee of $100 made payable to NCDEQ. Z_a Completed application and all supporting documents. ;�flj Copy of the valid approved mining permit (MP) for the facility or indication of MP application status.-S3m4ir) c•nw►roh Copy of a county map or other general location map that shows the mining site and nearest major roads. Copy of USGS topographic map showing the mining site and surrounding areas, or other map that clearly shows site location in relation to nearby streams, wetlands, and other waters, etc, &.�-2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with all outfalls, applicable buffers and wetlands clearly delineated, receiving waters, and 100-year flood plain line if applicable. 1` 6 A copy of your US Army Corps -approved wetland delineation if you marked "yes" to question 27 above. k A line drawing of the water flow through the facility or block flow diagram. A pictorial description of the nature of any sources of water and any collection and treatment measures. I`� , If mine site is in one of the 20 Coastal Counties: • Applicant has checked with the appropriate regional office to verify the need for a Coastal State Stormwater permit. Indicate the Regional Office Contact: • Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage areas, and total drainage area. If the mine is dewatering and near wetlands, or may otherwise impact surface waters or groundwater, Include the following and contact your local regional office about a Pumping Operation and Monitoring (POM) Plan. An approved POM plan may be required prior to NCG02 issuance. 2 copies of detailed Full Size Plans (at least 24" x 36") delineating areas on the plans and listing acreage (including: wetlands, ditches, well -placements, pits, borrow areas, overburden storage, stormwater controls/BMPs, vehicle maintenance areas, settling basins, product process (such as screening, stockpiles, waste piles), total drainage area, impervious surface percentages (if state SW programs apply), applicable buffers, and access and/or maul roads). Pump dewatering size and information on its specifications. Well information (design, depths, maintenance). Physical monitoring for the wetlands areas. Settling pond sizing information, if applicable. Level spreader design, if applicable. Details about dewatering method. Cone of influence calculations. Description of measures to prevent erosion and flooding. Description and information about 401/404 permits that have been obtained. Copy of US Army Corps of Engineers wetland delineations or approved wetland delineation (if applicable). I have contacted my local regional office about a POM Plan, Regional Office Contact: Date contacted: O will not impact any nearby wetlands, surface waters, or groundwaters by dewatering. Page 11 of 12 SWU-NCG02-NOI Last revised 9/10/2015 NCG020000 N.O.I. Certification: North Carolina General Statute 143-215.6 b (i) provides that: Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the [Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000). 41) Signatory Requirements (per 40 CFR 122.22) All applications, reports, or information submitted to the Director shall be signed and certified. a. All notices of intent to be covered under this General Permit shall be signed as follows: (1) For a corporation; by a responsible corporate officer. For the purpose of this permit, a responsible corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing production or operating facilities employing more tharr250 persons or having gross annual sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures. (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or (3) For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. I hereby request coverage under the referenced General Permit. I understand that coverage under this permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an individual permit. I agree to abide by the following as a part of coverage under this General Permit: 1. 1 agree to abide by the approved Mining Permit for this mining activity. (A copy of the valid mining permit must be attached to this request.) 2. 1 agree to not discharge any sanitary wastewater from this mining activity except under the provisions of another NPDES permit specifically issued therefore. 3. 1 agree that bulk storage of petroleum products and other chemicals shall have adequate protection so as to contain all spills on the site. 4. l agree that solid wastes will be disposed of in accordance with N.C. statutes and rules governing solid waste disposal. 5. 1 agree that maintenance activities for vehicles and heavy equipment will be performed so as to not result in contamination of the surface or ground waters. I agree to abide by the provisions as listed above and recognize that the provisions are to be considered as enforceable requirements of the General Permit. I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such information is true, complete, and accurate. Printed Name of Person Signing: / J Title: (Sig ture of App cant (ate Signed} Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDEQ. Page 12 of 12 5WU-NCG02-NOI Last revised 9/10/2015 62S ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY 3008 ANDERSON DRIVE. SUITE 102 RALEIGH, NC 27609 May 10, 2018 Mr. Jimmy Ray Whitley 4187 US Hwy 70 E. Smithfield, NC 27577 RE: Stormwater Evaluation Whitley Borrow Pit Brogden Road Johnston County Dear Mr. Whitley: (919) 781-7798 Engineering & Environmental Science Company (I.zS} has completed an evaluation of this facility for coverage under General Permit NCG020000. This permit pertains to stormwater discharges associated with mining activities. Following is a brief discussion t.of this evaluation. The proposed Whitley Borrow is located approximately 5 miles southeast of downtown Smithfield, NC. The site is accessed from an existing gravel road off of' Brogden Road (See Figure 1). A total of 59.8 acres is proposed within the mining permit boundary, with 16.5 acres to be affected/disturbed. An applications for a Mining Permit is being submitted concurrently with the General Permit NW020000. The proposed mining operation will use front end loaders and backhoes to excavate for fill dirt and sand. The maximum expected depth of excavation is approximately 20 ft., and the average depth of excavation will be approximately 10 ft. The mine will have two (2) points of discharge. The provided Stormwater Plan (Sheet 1) shows the locations of these discharge points and their watersheds. The discharge will be stormwater runoff from the mine excavation area. Discharge will be minimal as mining progresses and the basin sizes increase. Discharges will be from a 4" PVC pipe and 2.5" skimmer system. Secondary spillways are provided for each basin to pass larger storni events. The basins can pass the 10-year rain event with 1 ft. of freeboard. The stoninwater routing calculations are provide in Attachment B. The receiving water is an unnamed tributary to Polecat Branch which has a stream classifications of C;NSW. We appreciate serving you on this project. Please contact us if you have any questions. Sincerely, Patrick Shi 11 ington, 1'. �. p4" President Attachment A: Figures Attachment B: Calculations �K Skim Existing Basin 1 Type II 24-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10_.00-20 s_/n 07329 0 2017 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 1S: Watershed 1 [49] Hint: Tc<2dt may require smaller dt Runoff = 26.21 cfs @ 11.96 hrs, Volume= 1.222 af, Depth= 3.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr Rainfall=5.51" Area (ac) CN Description 4.800 77 Fallow, bare soil, HSG A 4.800 100.00% Pervious Area _..._ Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (fUsec) (cfs) 5.0 Direct Entry, 5 minutes Existing Basin 1 Type 1124-hr 10 yrRainfa11=5.51" Prepared by (enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 s/n 07329 © 2017 HydroCAD Software Solutions LLC Page 3 Hydrograph for Subcatchment 1S: Watershed 1 Time Precip. Excess Runoff (hours) (inches) (inches) (efs) 0.00 0.00 0.00 0.00 2.50 0.15 0.00 0.00 5.00 0.35 0.00 0.00 7.50 0.60 0.00 0.00 10.00 1.00 0.05 0.22 12.50 4.05 1.85 2.18 15.00 4.70 2.38 0.67 17.50 5.02 2.64 0.43 20.00 5.25 2.83 0.30 22.50 5.42 2.97 0.27 25.00 5.51 3.06 0.00 27.50 5.51 3.06 0.00 30.00 5.51 3.06 0.00 32.50 5.51 3.06 0.00 35.00 5.51 3.06 0.00 37.50 5.51 3.06 0.00 40.00 5.51 3.06 0.00 42.50 5.51 3.06 0.00 45.00 5.51 3.06 0.00 47.50 5.51 3.06 0.00 50.00 5.51 3.06 0.00 52.50 5.51 3.06 0.00 55.00 5.51 3.06 0.00 57.50 5.51 3.06 0.00 60.00 5.51 3.06 0.00 62.50 5.51 3.06 0.00 65.00 5.51 3.06 0.00 67.50 5.51 3.06 0.00 70.00 5.51 3.06 0.00 72.50 5.51 3.06 0.00 75.00 5.51 3.06 0.00 77.50 5.51 3.06 0.00 80.00 5.51 3.06 0.00 82.50 5.51 3.06 0.00 85.00 5.51 3.06 0.00 87.50 5.51 3.06 0.00 90.00 5.51 3.06 0.00 92.50 5.51 3.06 0.00 95.00 5.51 3.06 0.00 97.50 5.51 3.06 0.00 100.00 5.51 3.06 0.00 102.50 5.51 3.06 0.00 105.00 5.51 3.06 0.00 107.50 5.51 3.06 0.00 110.00 5.51 3.06 0.00 112.50 5.51 3.06 0.00 115.00 5.51 3.06 0.00 117.50 5.51 3.06 0.00 120.00 5.51 3.06 0.00 Existing Basin 1 Type 11 24-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Page 4 Summary for Pond 1P: Basin 1 (existing) Inflow Area = 4.800 ac, 0.00% impervious, Inflow Depth = 3.06" for 10 yr event Inflow - 26.21 cfs @ 11.96 hrs, Volume= 1.222 of Outflow = 16.77 cfs @ 12.04 hrs, Volume= 1.222 af, Atten= 36%, Lag= 5.0 min Primary = 16.77 cfs @ 12.04 hrs, Volume= 1.222 of Routing by Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Peak Elev= 118.53' @ 12.04 hrs Surf.Area= 8,936 sf Storage= 19,789 cf Plug -Flow detention time= 713.1 min calculated for 1.222 of (100% of inflow) Center -of -Mass det. time= 714.3 min ( 1,535.6 - 821.3 ) Volume invert Avail.Storage Storage Description #1 116.00' 28,608 cf Custom Stage Data (Prismatic) Listed below Elevation Surf -Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 116.00 6,400 0 0 118.00 8,580 14,980 14,980 119.50 9,590 13,628 28,608 Device Routing Invert Outlet Devices #1 Primary 115.00' 4.0" Round Culvert L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet/ Outlet Invert= 115.00' 1 114.50' S= 0.0100'1' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.09 sf #2 Device 1 115.00' 0.072 cfs 2.5" skimmer #3 Primary 118.00' Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 4.50 16.50 21.00 Height (feet) 1.50 0.00 0.00 1.50 Primary OutFlow Max=16.20 cfs @ 12.04 hrs HW=118.52' (Free Discharge) Culvert (Passes 0.07 cfs of 0.55 cfs potential flow) 2=2.5" skimmer (Constant Controls 0.07 cfs) 3=Asymmetrical Weir (Weir Controls 16.13 cfs @ 2.06 fps) Existing Basin 1 Type 11 24-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here) Printed 5/18/2018 H droCAD® 10.00-20 s/n 07329 OO 2017 H droCAD Software Solutions LLC Page 5 Hydrograph for Pond 1 P: Basin 1 (existing) Time Inflow Storage Elevation Primary (hours) (cfs) (cubic -feet) (feet) (cfs) 0.00 0.00 0 116.00 0.00 2.50 0.00 0 116,00 0.00 5.00 0.00 0 116.00 0.00 7.50 0.00 0 116.00 0.00 10.00 0.22 459 116.06 0.07 12.50 2.18 16,438 118.16 2.69 15.00 0.67 15,546 118.06 0.70 17.50 0.43 15,370 118.04 0.44 20.00 0.30 15,275 118.03 0.31 22.50 0.27 15,246 118,03 027 25.00 0.00 14,863 117.98 0.07 27.50 &00 14,215 117.90 0.07 30.00 0.00 13,567 117.81 0.07 32,50 0.00 12,919 117,72 0.07 35.00 0.00 12,271 117.64 0.07 37,50 0.00 11,623 117,55 0.07 40,00 0.00 10,975 117,47 0.07 42,50 0.00 10,327 117,38 0.07 45.00 0.00 9,679 117.29 0,07 47,50 0.00 9,031 117,21 0.07 50.00 O.00 8,383 117.12 0.07 52.50 0.00 7,735 117.03 0.07 55.00 0.00 7,087 116.95 0.07 57.50 0.00 6,439 116.86 0.07 60,00 0.00 5,791 116,77 0.07 62.50 0.00 5,143 116.69 0.07 65,00 0.00 4,495 116,60 0.07 67,50 0.00 3,847 116,51 0. 07 70.00 0.00 3,199 116.43 0.07 72.50 0.00 2,551 116,34 0.07 75.00 0.00 1,903 116.25 0.07 77.50 0.00 1,255 116.17 0.07 80.00 0.00 607 116.08 0.07 $2.50 0.00 82 116.01 0.02 85.00 0.00 7 116.00 0.00 87.50 MO 1 116.00 0,00 90.00 0.00 0 116.00 0.00 92.50 0.00 0 116.00 0.00 95.00 0.00 0 116.00 0.00 97.50 0.00 0 116.00 0.00 100.00 0.00 0 116,00 0.00 102.50 0.00 0 116.00 0,00 105.00 0.00 0 116,00 0.00 107.50 0.00 0 116.00 0.00 110.00 0.00 0 116.00 0.00 112.50 0.00 0 116.00 0.00 115.00 ❑.00 0 116.00 MO 117.50 0.00 0 116.00 0.00 120.00 &00 0 116.00 0.00 Existing Basin 1 Type 1124-hr 25 yr Rainfall=6.72" Prepared by {enter your company name -here) Printed 5/18/2018 H droCAD® 10.00-20 sln 07329 © 2017 H droCAD Software Solutions LLC Page 6 Summary for Subcatchment IS: Watershed 1 [49] Hint: Tc<2dt may require smaller dt Runoff - 34.93 cfs @ 11.96 hrs, Volume= 1.646 af, Depth= 4.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Type li 24-hr 25 yr Rainfall=6.72" Area (ac) CN Description 4.800 77 Fallow, bare soil HSG A 4.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ftlft) (ft/s_ ec_) (cfs) 5.0 Direct Entry, 5 minutes Existing Basin 1 Type Il 24-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Pam Hydrograph for Subcatchment 1 S: Watershed 1 Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 2.50 0.19 0.00 0.00 5.00 0.42 0.00 0.00 7.50 0,73 0.01 0.05 10.00 1.22 0.11 0.39 12.50 4.94 2.57 2.83 15.00 5.74 3.25 0.86 17.50 6.13 3.59 0.55 20.00 6A0 3.83 0.38 22,50 6.61 4.01 0.34 25.00 6.72 4.12 0.00 27.50 6.72 4.12 0.00 30.00 6.72 4.12 0.00 32.50 6,72 4.12 0.00 35.00 6,72 4.12 0.00 37,50 6.72 4.12 0.00 40.00 6.72 4.12 0.00 42,50 6.72 4.12 0.00 45.00 6.72 4.12 0.00 47.50 6.72 4.12 0.00 50,00 6.72 4.12 0.00 52.50 6.72 4.12 0.00 55.00 6,72 4.12 0.00 57.50 6.72 4.12 0.00 60.00 6.72 4.12 0.00 62.50 6,72 4.12 0.00 65.00 6.72 4.12 0.00 67.50 6.72 4.12 0.00 70.00 6.72 4.12 0.00 72.50 6.72 4.12 0.00 75,00 6.72 4.12 0,00 77.50 6.72 4.12 0.00 80.00 6.72 4.12 0.00 82.50 6.72 4.12 0.00 85,00 6.72 4.12 0.00 87.50 6.72 4.12 0.00 90.00 6.72 4.12 0.00 92.50 6.72 4.12 0.00 95.00 6.72 4.12 0.00 97.50 6.72 4.12 0.00 100.00 6,72 4.12 0.00 102.50 6.72 4.12 0.00 105.00 6.72 4.12 0.00 107.50 6.72 4.12 0.00 110.00 6.72 4.12 0.00 112.50 6.72 4.12 0.00 115.00 6.72 4.12 0.00 117.50 6.72 4.12 0.00 120.00 6.72 4.12 0.00 Existing Basin 1 Type 1l 24-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 s/n 07329 © 2017 HydroCAD Software Solutions LLC Page 8 Summary for Pond 1 P: Basin 1 (existing) Inflow Area = 4.800 ac, 0.00% Impervious, Inflow Depth = 4.12" for 25 yr event Inflow = 34.93 cfs @ 11.96 hrs, Volume= 1.646 of Outflow = 30.31 cfs @ 12.00 hrs, Volume= 1.646 af, Atten= 13%, Lag= 2.9 min Primary = 30.31 cfs @ 12.00 hrs, Volume= 1.646 of Routing by Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Peak Elev= 118.76' @ 12.00 hrs Surf.Area= 9,095 sf Storage= 21,925 cf Plug -Flow detention time= 534.8 min calculated for 1.645 of (100% of inflow) Center -of -Mass det. time= 536.1 min ( 1,348.9 - 812.8 ) Volume Invert Avail.Storage Storage Description _ #1 116.00' 28,608 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 116.00 6,400 0 0 118.00 8,580 14,980 14,980 119.50 9,590 13,628 28,608 Device Routing Invert Outlet Devices #1 Primary 115.00' 4.0" Round Culvert L= 50.0' CPR projecting, no headwall, Ke= 0.900 Inlet/ Outlet Invert= 115.00' 1 114.50' S= 0.0100'P Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.09 sf #2 Device 1 115.00' 0.072 cfs 2.5" skimmer #3 Primary 118.00' Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 4.50 16.50 21.00 Height (feet) 1.50 0.00 0.00 1.50 Primary OutFlow Max=29.96 cfs @ 12.00 hrs HW=118.76' (Free Discharge) T_tCulvert (Passes 0.07 cfs. of 0.57 cfs potential flow) 2=2.5" skimmer (Constant Controls 0.07 cfs) 3=Asymmetrical Weir (Weir Controls 29.89 cfs @ 2.38 fps) Existing Basin 1 Type 1124-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCADO 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Page 9 Hydrograph for Pond 1 P: Basin 1 (existing) Time Inflow Storage Elevation Primary (hours) (cfs) (cubic -feet) (feet) (cfs) 0.00 0.00 0 116.00 0.00 2.50 0.00 0 116.00 0.00 5.00 0.00 0 116.00 0.00 7.50 0.05 67 116,01 0.02 10.00 0.39 1,187 116.16 0.07 12.50 2.83 16,691 118.19 3.41 15.00 0.86 15,652 118.07 0.89 17.50 0.55 15,456 118.05 0.57 20.00 0.38 15,334 118.04 0.39 22.50 0.34 15,299 118.04 0.34 25.00 0.00 14,878 117.99 0.07 27.50 0.00 14,230 117.90 0.07 30.00 0.00 13,582 117.81 0.07 32.50 0.00 12,934 117.73 0.07 35.00 0.00 12,286 117_64 0.07 37.50 0.00 11,638 117.55 0.07 40.00 0.00 10,990 117.47 0.07 42.50 0.00 10,342 117.38 0.07 45.00 0.00 9,694 117.29 0.07 47.50 0.00 9,046 117.21 0.07 50.00 0.00 8,398 117.12 0,07 52.50 0.00 7,750 117.03 0.07 55.00 0.00 7,102 116.95 0.07 57.50 0.00 6,454 116.86 0.07 60.00 0.00 5,806 116.78 0.07 62.50 0.00 5,158 116.69 0.07 65.00 0.00 4,510 116.60 0.07 67.50 0.00 3,862 116.52 0,07 70.00 0.00 3,214 116.43 0,07 72.50 0.00 2,566 116.34 0.07 75.00 0.00 1,918 116.26 0,07 77.50 0.00 1,270 116.17 0.07 80.00 0.00 622 116.08 0.07 82.50 0,00` 87 116.01 0.02 85.00 0.00 7 116.00 0.00 87.50 0,00 1 116.00 0.00 90.00 0,00 0 116.00 0,00 92.50 0,00 0 116.00 0,00 95.00 0.00 0 116.00 0,00 97.50 0.00 0 116.00 0.00 100.00 0.00 0 116.00 0.00 102.50 0,00 0 116.00 0.00 105.00 0.00 0 116.00 0.00 107.50 0.00 0 116.00 0.00 110.00 0.00 0 116.00 0.00 112.50 0,00 0 116.00 0.00 115.00 0.00 0 116.00 0,00 117.50 0.00 0 116.00 0.00 120.00 0.00 0 116.00 0.00 Proposed Basin #2 Type /124-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here} Printed 5/18/201$ HydroCAD® 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 2S. Watershed 2 Runoff = 26.33 cfs @ 12.11 hrs, Volume= 1.939 af, Depth= 1.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr Rainfall=5.51" Area (ac) CN Description 7.140 77 Fallow, bare soil, HSG A 6.670 43 Woods/grass comb., Fair, HSG A 13.810 61 Weighted Average 13.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.1 100 0.0380 0.23 Sheet Flow, Grass: Short n= 0.150 P2= 3.64" 3.0 657 0.0500 3.60 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 7.2 990 0.0200 2.28 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 17.3 1,747 Total Proposed Basin #2 Type I124-hr 10 yr Rainfall=5.51" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10,00-20 sln 07329 O 2017 HydroCAD Software Solutions LLC _ Page 3 Hydrograph for Subcatchment 2S: Watershed 2 Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 2.50 0.15 0.00 0.00 5.00 0.35 0.00 0.00 7.50 0.60 0.00 0.00 10.00 1,00 0.00 0.00 12.50 4.05 0.84 6.72 15.00 4.70 1.19 1.40 17.50 5,02 1.38 0.92 20.00 5.25 1.52 0.65 22.50 5.42 1.63 0.57 25.00 5.51 1.69 0.00 27.50 5,51 1.69 0.00 30.00 5.51 1.69 0.00 32.50 5.51 1.69 0.00 35.00 5.51 1.69 0.00 37.50 5.51 1.69 0.00 40.00 5.51 1.69 0.00 42.50 5.51 1.69 0.00 45.00 5.51 1.69 0.00 47.50 5.51 1.69 0.00 50.00 5.51 1.69 0.00 52.50 5.51 1.69 0.00 55.00 5.51 1.69 0.00 57.50 5.51 1.69 0.00 60.00 5.51 1.69 0.00 62.50 5,51 1.69 0.00 65.00 5.51 1.69 0.00 67.50 5.51 1.69 0.00 70.00 5.51 1.69 0.00 72.50 5.51 1.69 0,00 75.00 5.51 1.69 0.00 77.50 5.51 1.69 0.00 80.00 5.51 1.69 0.00 82.50 5.51 1.69 0.00 85.00 5.51 1.69 0.00 87.50 5.51 1.69 0.00 90.00 5.51 1.69 0.00 92.50 5.51 1.69 0.00 95.00 5.51 1.69 0,00 97.50 5.51 1.69 0.00 100.00 5.51 1.69 0,00 102.50 5.51 1.69 0.00 105.00 5.51 1,69 0,00 107.50 5.51 1.69 0.00 110.00 5.51 1.69 0.00 112.50 5.51 1.69 0.00 115.00 5.51 1.69 0,00 117.50 5.51 1.69 0.00 120.00 5.51 1.69 0.00 Proposed Basin #2 Type 1124-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here) Printed 5/18/2018 HydroCAD® 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Page 4 Summary for Pond 2P: Basin #2 (Proposed) Inflow Area = 13.810 ac, 0.00% Impervious, Inflow Depth = 1.69" for 10 yr event Inflow = 26.33 cfs @ 12.11 hrs, Volume= 1.939 of Outflow - 23.38 cfs @ 12.18 hrs, Volume= 1.939 af, Atten= 11 %, Lag= 4.3 min Primary = 23.38 cfs @ 12.18 hrs, Volume= 1.939 of Routing by Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Peak Elev= 113.52' @ 12.18 hrs Surf.Area= 7,258 sf Storage= 16,700 cf Plug -Flow detention time= 351.1 min calculated for 1.938 of (100% of inflow) Center -of -Mass det. time= 352.2 min ( 1,225.1 - 872.8 ) Volume Invert Avail.Storage Storage Description #1 111.00, 20,210 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 111.00 5,967 0 0 112.00 6,480 6,224 6,224 113.00 6,993 6,737 12,960 114.00 7,506 7,250 20,210 Device Routing Invert Outlet Devices #1 Primary 110.00' 4.0" Round Culvert L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet/ Outlet Invert= 110.00' 1109.50' S= 0.0100 7 Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.09 sf #2 Device 1 110,00' 0.072 cfs 2.5" skimmer #3 Primary 113.00' Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 4.50 22.50 27.00 Height (feet) 1.50 0.00 0.00 1.50 Primary OutFlow Max=22.87 cfs. @ 12.18 hrs HW=113.51' (Free Discharge) Culvert (Passes 0.07 cfs of 0.55 cfs potential flow) 2=2.5' skimmer (Constant Controls 0.07 cfs) 3=Asymmetrical Weir (Weir Controls 22.80 cfs @ 2.13 fps) Proposed Basin #2 Type/1 24-hr 10 yr Rainfall=5.51 " Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD®10.00-20 sln 07329 O 2017 HydroCAD Software Solutions LLC Page 5 Hydrograph for Pond 2P: Basin #2 (Proposed) Time Inflow Storage Elevation Primary (hours) (cfs) (cubic-feet) (feet) (cfs) 0.00 0.00 0 111.00 0.00 2.50 0.00 0 111.00 0.00 5.00 0.00 0 111.00 0.00 7.50 0.00 0 111.00 0.00 10.00 0.00 0 111.00 0.00 12.50 6.72 14,761 113.25 7.61 15.00 1.40 13,533 113.08 1.42 17.50 0.92 13,383 113.06 0.93 20.00 0.65 13,283 113.04 0.66 22.50 0.57 13,252 113.04 0.58 25.00 0.00 12,883 112.99 0.07 27.50 0.00 12,235 112.89 0.07 30.00 0,00 11,587 112.80 0.07 32.50 0.00 10,939 112.70 0.07 35.00 0.00 10,291 112.60 0.07 37.50 0.00 9,643 112,51 0.07 40,00 0.00 8,995 112.41 0.07 42.50 0.00 8,347 112.32 0.07 45.00 0.00 7,699 112.22 0.07 47,50 0.00 7,051 112.12 0.07 50.00 0.00 6,403 112.03 0.07 52.50 0.00 5,755 111.92 0.07 55.00 0.00 5,107 111.82 0.07 57.50 0.00 4,459 111.72 0.07 60.00 0.00 3,811 111.61 0.07 62.50 0.00 3,163 111.51 0.07 65.00 0.00 2,515 111.40 0.07 67.50 0.00 1,867 111.30 0.07 70.00 6_00 1,219 111.20 0.07 72.50 0.00' 571 111,09 0.07 75.00 0.00 56 111.01 0.02 77.50 0.00 3 111.00 0.00 80.00 0.00 0 111.00 0.00 82.50 0.00 0 111.00 0.00 85.00 0.00 0 111.00 0.00 87.50 0.00 0 111.00 0.00 90.00 0.00 0 111.00 0.00 92.50 0.00 0 111.00 0.00 95.00 0.00 0 111.00 0.00 97.50 0.00 0 111.00 0.00 100.00 0.00 0 111.00 0.00 102.50 0.00 0 111.00 0.00 105.00 0.00 0 111.00 0.00 107.50 0.00 0 111.00 OM 110.00 0.00 0 111.00 0.00 112.50 0.00 0 111.00 0.00 115.00 0.00 0 111.00 0.00 117.50 0.00 0 111.00 0.00 120.00 0.00 0 111.00 0.00 Proposed Basin #2 Type 1124-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 sln 07329 © 2017 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment 2S: Watershed 2 Runoff = 40.39 cfs @ 12.11 hrs, Volume= 2.879 af, Depth= 2.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Type 11 24-hr 25 yr Rainfall=6.72" Area (ac) CN Descriotion 7.140 77 Fallow, bare soil, HSG A 6.670 43 Wood slgrass comb. Fair, HSG A 13.810 61 Weighted Average 13.810 100,00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ftlft) (ftlsec) (cfs) 7.1 100 0.0380 0.23 Sheet Flow, Grass: Short n= 0.150 P2= 3.64" 3.0 657 0.0500 3.60 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 7.2 990 0.0200 2.28 Shallow Concentrated Flow, Unoaved Kv= 16.1 fos 17.3 1,747 Total Proposed Basin #2 Type II 24-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD® 10.00-20 sin 07329 © 2017_HydroCAD Software Solutions LLC Page 7 Hydrograph for Subcatchment 2S: Watershed 2 Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 2.50 0.19 0.00 0.00 5.00 0.42 0.00 0.00 7.50 0.73 0.00 0.00 10.00 1.22 0.00 0.00 12.50 4.94 1.33 9.70 15.00 5.74 1.83 1.94 17.50 6.13 2.09 1.26 20.00 6.40 2.28 0.88 22.50 6.61 2.42 0.78 25.00 6.72 2.50 0.00 27.50 6.72 2.50 0.00 30.00 6.72 2.50 0.00 32.50 6.72 2.50 0.00 35.00 6.72 2.50 0.00 37.50 6.72 2.50 0.00 40.00 6.72 2.50 0.00 42.50 6.72 2.50 0.00 45.00 6.72 2.50 0.00 47.50 6.72 2.50 0.00 50.00 6.72 2.50 0.00 52.50 6.72 2.50 0.00 55.00 6.72 2.50 0.00 57.50 6.72 2.50 0.00 60.00 6.72 2.50 0.00 62.50 6.72 2.50 0.00 65.00 6.72 2.50 0.00 67.50 6.72 2.50 0.00 70.00 6.72 2.50 0.00 72.50 6.72 2.50 0.00 75.00 6.72 2.50 0.00 77.50 6.72 2.50 0.00 80.00 6.72 2.50 0.00 82.50 6.72 2.50 0.00 85.00 6.72 2.50 0.00 87.50 6.72 2.50 0.00 90.00 6.72 2.50 0.00 92.50 6.72 2.50 0.00 95.00 6.72 2.50 0.00 97.50 6.72 2.50 0.00 100.00 6.72 2.50 0.00 102.50 6.72 2.50 0.00 105.00 6.72 2.50 0.00 107.50 6.72 2.50 0.00 110.00 6.72 2.50 0.00 112.50 6.72 2.50 0.00 115.00 6.72 2.50 0.00 117.50 6.72 2.50 0.00 120.00 6.72 2.50 0.00 Proposed Basin #2 Type 11 24-hr 25 yrRainfall=6.72" Prepared by {enter your company name here) Printed 5/18/2018 HydroCAD® 10.00-20 sln 07329 O 2017 HydroCAD Software Solutions LLC Page 8 Summary for Pond 2P: Basin #2 (Proposed) Inflow Area = 13.810 ac, 0.00% Impervious, Inflow Depth = 2.50" for 25 yr event Inflow - 40.39 cfs @ 12.11 hrs, Volume= 2.879 of Outflow = 39.55 cfs @ 12.13 hrs, Volume= 2.879 af, Atten= 2%, Lag= 1.6 min Primary - 39.55 cfs @ 12.13 hrs, Volume= 2.879 of Routing by Star -Ind method, Time Span= 0.00-120.00 hrs, dt= 0.05 hrs Peak Elev= 113.72' @ 12.13 hrs Surf.Area= 7,363 sf Storage= 18,185 cf Plug -Flow detention time= 238.3 min calculated for 2.878 of (100% of inflow) Center -of -Mass det. time= 239.5 min ( 1,100.1 - 860.6 ) Volume Invert Avail.Storage Storage Description #1 111.00, 20,210 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sg-ft) (cubic -feet) (cubic -feet) 111.00 5,967 0 0 112.00 6,480 6,224 6,224 113.00 6,993 6,737 12,960 114.00 7,506 7,250 20,210 Device Routing Invert Outlet Devices #1 Primary 110.00' 4.0" Round Culvert L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet 1 Outlet Invert= 110.00' 1 109.50' S= 0.01 00'1' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.09 sf #2 Device 1 110.00' - 0.072 cfs 2.5" skimmer #3 Primary 113.00' Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 4.50 22.50 27.00 Height (feet) 1.50 0.00 0.00 1.50 Primary OutFlow Max=38.96 cfs @ 12.13 hrs HW=113.71' (Free Discharge) 1=Culvert (Passes 0.07 cfs of 0.57 cfs potential flow) t2=2.5" skimmer (Constant Controls 0.07 cfs) 3=Asymmetrical Weir (Weir Controls 38.89 cfs @ 2.44•fps) It . . t - Proposed Basin #2 Type H 24-hr 25 yr Rainfall=6.72" Prepared by {enter your company name here} Printed 5/18/2018 HydroCAD010.00-20 s/n 07329 ©2017 HydroCAD Software Solutions LLC Pape 9 Hydrograph for Pond 2P: Basin #2 (Proposed) Time Inflow Storage Elevation Primary (Fours) (cfs) (cubic -feet) (feet) (cfs) 0.00 0.00 0 111.00 0.00 2.50 0.00 0 111.00 0.00 5.00 0.00 0 111.00 0.00 7.50 0.00 0 111.00 0.00 10.00 0.00 0 111.00 0.00 12.50 9.70 15,235 113.31 10.86 15.00 1.94 13,686 113.10 1,96 17.50 1.26 13,491 113.07 1.27 20.00 0.88 13,372 113.06 0.90 22.50 0.78 13,329 113.05 0.78 25.00 0.00 12,894 112.99 0.07 27.50 0.00 12,246 112.89 0.07 30.00 0,00 11,598 112.80 0.07 32.50 0.00 10,950 112.70 0.07 35.00 0.00 10,302 112.61 0.07 37.50 0.00 9,654 112.51 0.07 40.00 0.00 9,006 112.41 0.07 42.50 0,00 8,358 112.32 0.07 45.00 0.00 7,710 112.22 0.07 47.50 0.00 7,062 112.12 0.07 50.00 0.00 6,414 112.03 0.07 52.50 0.00 5,766 111.93 0.07 55.00 0,00 5,118 111.82 0.07 57.50 0.00 4,470 111.72 0.07 60.00 0.00 3,822 111.61 0.07 62.50 0.00 3,174 111.51 0.07 65.00 0.00 2,526 111.41 0.07 67.50 0.00 1,878 111.30 0.07 70.00 0.00 1,230 111.20 0.07 72.50 0.00 582 111.09 0.07 75.00 0.00 59 111.01 0.02 77.50 0.00 3 111.00 0.00 80.00 0.00 0 111.00 0.00 82.50 0,00 0 111.00 0.00 85.00 0.00 0 111.00 0.00 87.50 0.00 0 111.00 0.00 90.00 0.00 0 111.00 0.00 92.50 0.00 0 111.00 0.00 95.00 0.00 0 111.00 0.00 97.50 0.00 0 111.00 0.00 100.00 0.00 0 111.00 0.00 102.50 0.00 0 111.00 0.00 105.00 0,00 0 111.00 0.00 107.50 0.00 0 111.00 0.00 110.00 0,00 0 111.00 0.00 112.50 0.00 0 111.00 0.00 115.00 0.00 0 111.00 0.00 117.50 0.00 0 111.00 0.00 120.00 0.00 0 111.00 0.00 ENGINEERING St ENVIRONMENTAL"SCIENCE , ;''"; :_ ` :° =° -`' s Lti[r3r. �i,y.. • .r �� .1 COMPANY,-INC.*,:; _ � 7 t.-, j �J � � , � { �1�t:•I lLi3 s ; �F 3008 ANDERSON I1R STE 102^ 's : _ _ . 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CLASS C;NSW t BASIN Neuse Zoom —AH fir✓ V I C -78.245 35.444 !Degrees https:llncdenr,maps.arcgis.com/appslwebappviewer/index.html?id=3cda38498aa344d3a9o5a0437bc2a 147 111 • �i // ya _ �� �J .�" •yam - - -,' A i I`w f F } 1 r } r cr t: f •r V -_ scatc: i = 5000' i A iN 5 H 41. 6&4! C • 2 PROPERTY LINE & — - MINI PERMIT LIMITS MINING PERMIT LIMITS ' t MINE ARE.A•.CNAIt N -6 � U, N MINING PERMIT LIMITS o? , MINE AREA r' PROPERTY LINE & w. INING PERMIT LIMITS ' l wwa�wwwwwwwwrww.wM 250' PraPerly Buffer l PROPERTY LINE & MINING PERMIT 1_;MITS •- l ,t Scale: 1 " = 900' t 2 ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY 3008 ANDERSON DR., SUITE 102 RALEIGH, NORTH CAROLINA 27609 (919)781-7798 urn:: Vicinity Map Whitley Borrow Pilt -4125119 Brogden Rd. kf N Johnston County, NC I Scale: I " = 5000' 62s is Watershed (Subcat Reach on Link 1P Basin 1 (existing) used) n #2 rinted 5/18/2018 ware Solutions LLC Tv {+j+. ! 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