Loading...
HomeMy WebLinkAboutSW1160502_HISTORICAL FILE_20160613STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW �C�D DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS i iISTORICAL FILE ❑( COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD E-2 LANDSCAPE ARCHITECTURE / LETTER OF TRANSMITTAL To: Mike Randall, Stormwater Permitting Program From: Fred Groean. E-2 Landscape Architecture Date: 5/25/2016 Project: WNC Ag. Center Parking Copies Date Description 2 5/24/2016 WNC AG Center Parking Stormwater Plans 2 (One original) 5/25/2016 Stormwater Management Permit Application Form 2 (One original) 5/25/2016 Stormwater Wetland Operation and Maintenance Agreement 2 (One original) 5/25/2016 Stormwater Technical Report (Narrative/Calculations) 2 5/25/2016 Deed 2 5/25/2016 Supplemental Form -Wetland Supplement 2 5/25/2016 USGS Property Map 2 5/25/2016 NC Surface Water Classification Map 1 5/25/2016 . Permit Application Processing Fee Items Being Sent: ❑ For Your Comments ❑ For Your Approval ❑ Please Advise ❑ For Your Information ❑ Per Your Request ❑ Per our Conversation ❑ Please call Received JUN 13 2016 Land Quality Section Asheville N011039 ,gll"b CNb1 9101 9 9 AVW 03AI3038 Comments: Please find the enclosed information and submittals. "CONFIDENTIALITY NOTICE" _ Thistransmittal isintended onlyfortheuse ofthe individual orentitytowhich itisaddressed and may contain privileged information and confidential information. If the reader of this message is not the intended recipient, you are hereby notified that any disclosure, distribution, or copying of this information is strictly prohibited. If you have received this transmission in error please notify us immediately and return the documents to us via U.S. Postal Service. 37 Haywood Street, Suite 100 Asheville NC 28801 828.253.6856 a Page f of 4 1 1 Received Land Quality section Asheville n ECEIVE® MAY 2 6 2019 ea 19 0 1 PC 6 4 9 LAND OW41TY 49-OTION rCC(c.�T CDCf' '96 APR 18 P4:08 Eadm i.. I RKONIns l ., Book end Page Tax Lot No . ..... ........... _.................... _.................. _........................ Parcel Identifier No. .._.......... ........ ....... ....... ... .................. ..... ....... Verified by ............. ........... ..,...__. Gnarly an the ... ..... ....... day of ......... ....... ......... ...... ... ..... . IB.........— . by...... ......................... .. ......_. ....... `.._. Mail after recording to ......___........Wi IlAam.. F....Slawter.—City.. Attorney.,..Ci.ty..Attorney's-Office................... ............. ...._...._.... .......,......_.Post..Offi ca. Box_7148...Ashevi.I ]a ..North. Carol.tna.28802-7148...._....__..... This instrument was prepared by .__ Wi111 am. F._.SI awter _ .. ................ ......_....,_. ..,,..... _. .__... Brief description fur the Index 8.2 Acres on Fanning Brid a Road NORTH pCAROLIN-�A GENERAL WARRANTY DEED THIS DEED made this .. /p .. duY of .._.. /....�.�:._/............-.....-_-_-... • 19�_ by and between GRANTOR GRANTEE CITY OF ASHEVILLE, a North Carolina THE STATE OF NORTH CAROLINA municipal corporation c/o Joseph H. Henderson State Property Office 116 W. Jones Street Raleigh, North Carolina 27603-8003 E.ter m ..pra,rbov mask far tech part,:..aw..ad..... ..u, a sapmpri.ra, m.rnalrr of omen .... r."o.o.. er partandus. The designation Grantor and Grantee as used herein shell include said parties, their heirs, rcc.ssora, and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context. WITNESSETH, that the Granta, for a valuable consideration paid by the Grantee, the receipt of which is hereby acknowledged, has and by these presents does grunt. bargain, sell and convey unto the Grantee in fee simple, all that certain lot or parcel of land situated in the city of ...........Asheville ..... ... ......... • .... ._..... ............ ..... .. Township, .... BVn COMbe_.....,. ..... ..,.,,.,. Cotmty. North Carolina and more particularly described as fallmra: ' See attached Exhibit "A" Book: 1901 Page:649 Seq: 1 un. Primal by CamerBarw Printers, Ina. 41'age 2 o; 4 EXHIBIT A BEGINNING at an iron pin which is located South 21 degrees 36 minutes 41 seconds West 612.69 feet (Ground) and South 23 degrees 38 minutes 51 seconds West 612.53 feet (Grid) from NCGS Monument "Rest" (NC Grid Coordinates (NAD 63) N191587.805m and E289213.047m, and runs thence from said Beginning point on a curve to the right having a radius of 663.94 feet, a chord bearing of South 59 degrees 23 minutes 33 seconds West 413.45 feet and an arc length of 420.44 feet to an iron pin; thence South 79 degrees 32 minutes 36 seconds West 342.65 feet to an iron pin; thence on a curve to the left having a radius of 5,839.58 feet, a chord bearing of South 80 degrees 15 minutes 48 seconds West 386.20 feet and an arc length of 386.27 feet to an iron pin; thence North 64 degrees 21 minutes 42 seconds West, crossing an iron pin at 52 feet, a total distance of 182.47 feet to a right of way monument, said right of way monument being located North 30 degrees 44 minutes 38 seconds West 216.86 feet from a County Line monument; thence North 02 degrees 48 minutes 04 seconds West, crossing an iron pin at 182.64 feet, a total distance of 445.09 feet to an iron pin; thence North 25 degrees 31 minutes 19 seconds West 89.43 feet to an iron pin located in the eastern margin of the 100' right of way of Airport Road; thence with the eastern margin of said right of way, North 03 degrees 07 minutes 12 seconds West 63.53 feet to an iron pin; thence North 86 degrees 52 minutes 48 seconds East 300 feet to an iron pin; thence South 03 degrees 07 minutes 12 seconds East 400 feet to an iron pin; thence North 86 degrees 52 minutes 48 seconds East 981.81 feet to the point and place of Beginning, containing 8.31 acres, more or less, and being shown on a survey dated November 17, 1995, last revised December 1, 1995, entitled "Survey of Addition to WNC Agricultural Center," prepared by Hutchison -Biggs & Associates, Inc. (B95-885) Being part of the property conveyed to the City of Asheville by. Deed dated April 4, 1958 from City Loans, Incorporated, and recorded in Deed Book 366 at page 607, Henderson County Registry. This conveyance is subject to the following rest7tictions, which shall be perpetual, unless sooner released by the Federal Aviation Administration: 1. Grantor reserves unto itself, its successors and assigns, for the use and benefit of the public, a right of flight Eor the passage of aircraft in the airspace above the surface of the real property hereinbefore described, together with the right to cause in said airspace such noise as may be inherent in the operation of aircraft, now known or . hereafter used, for navigation of or flight in the said airspace for landing on, taking off from, or operating on the Asheville Regional Airport. Book:1901 Page:649 Seq:2 'Page 3 of ex 1 9 0 1 Pc 6 5 1 (ATTACHMENT) 2. The Grantee expressly agrees for itself, its successors and assigns to restrict the height of structures, objects of natural growth and other obstructions on the hereinbefore described real property to a height not to exceed the imaginary surfaces in Federal Aviation Regulation Part 77, "Objects Affecting Navigable Airspace." 3. The Grantee expressly agrees for itself, its successors, and assigns to prevent any use of the hereinbefore described real property which would interfere with landing or taking off of aircraft at the Asheville Regional Airport or otherwise constitute an airport hazard. 4. The Grantor retains and reserves necessary interests and rights to ensure that the land will only be used for purposes which are compatible with the noise levels generated by the airport. 5. No structures of any kind shall be built upon and no congregation of people shall at any time be allowed upon the following described portion of said property: BEGINNING at the right of way monument located at the southwestern corner of that' 8.31 acre tract described hereinbefore and thence from said Beginning point North 02 degrees 48 minutes 04 seconds west 182.64 feet; thence South 27 degrees 54 minutes 49 seconds East 270.33 feet; thence North 64 degrees 21 minutes 42 seconds West 130.47 feet to the point and place of Beginning. Book:1901 Page:649 Seq:3 *Page 4.14 �c 1901rc652 The property hercinabove described was acquired by Grantor by instrument recorded in A map showing the above described property Ia recorded in Plat Book .......... ..- ..................... page TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances thereto belonging to the Grantee in fee simple. And the Grantor covenants with the Grantee, that Grantor is seized of the premises in fee simple, has the right to convey the same in fee simple, that title is marketable and free and clear of all encumbrances, and that Grantor will warrant and defend the title against the lawful claims of all persona whomsoever except for the exceptions hereinafter stated. Title to the property hereinabove described is subject W the following exceptions: ON wrtNLee w ...Y. la 1 an a.... ea. ur u p cart. n t R. e. ...... In m :ea::.1- ., .Y 1.. emr .Rw.leted mii e� ..I He rest 1. e. a..n:nm :inCm el .um.1hr .1 n. Rn.m el uu.a...°'u:e a.Y .nee rear rou mCITY SHEVI:1 .• .✓ mnnr._uAF--- .zT---sion v-------------------------- (".AeLI all up ______--___-------------------------------------------------- rM ol _ •• `-\.:�� hJ Sy S .y S Ise 1 City C_lerk'-�'"Ir(k'cxxk414.cc taEALI . I4nraMp y11,, HOC...... �PI g. 9ll lli b('i County ana .loin .uvula. -111n, to., ... . ..... ... ... ... T 'F praat.- !/ jnY� jyqd.1 1 m. Ial, nor .no .raneetwo... In.. —Id— nt In. ro.1.1.1 Imun,nlne wRevel m> ,7 Aeoa Iaeanelil .vmn ee feaE use a.9 el ........ .. ...... t9 M> r.mm411a....l,ee: -. -. - .. . .... .. - Novry Its. VsERhattA NORTH CAROLINA. -. Buncombe . -. c... tI. i s r t Ifectry Pnmm .1 te...vmr ... slate .ro,e.aa, ceeur loot M,t_gda12A_Burlmn ............ same .emn Is. tab a.> ana .exn.wueeee wn 5 n.0 .. %gtp%tr)aynl '+ m " City of Asheville .u.rm C...p W.11—.. .r lo.av nw .'`%j•1: �� Y �- '_ !% a one .. me nt .1 ,ne rem.mun, u. rn.erme mnnmem .,. vanes m W n.me .r lu Mayor IN -.3:Qa .1 : nN%IeMftt0. .race wlm m.orvma,e .e one .antes her It C_{.LX-F1PT$.......... %It%q»Y. .. .�.......... n. es> m> ana one o c mmn .r •rilm aar m 1 j�( IddC�e 9 .--• remmWlon e. _Monry eneW Tee u....... evnnn1.41 .t _____________ _ _ r�.� - -- _____________________________________ I 1_)�.- ___._____._____..____.___---._-.----_.---._-. --._ _________________________________________________________------------------------------------------------------------ -------------- en t8e A Wa e---___ wla[o n/.v u,<ee a nve Tal. InlnomT{ ntVlra4 ve aulY .e>nvva .t me a.v ana n.sewn Rnt nav no , .I Inme one In 1ae Reea .na P.Ce ..... ......yY .I _M1ECI6TER OP aLEae >Ol-�. _'AsFf.A/A�_ � C..Nv, _ U Book:1901 Page:649 Seq:4 Printed by ComerSmnn Prinlen, Inc. STORMWATER TECHNICAL REPORT for conveyance and treatment measures associated with a proposed parking area at the WNC Agricultural Center No. 39870 Prepared by Robinson Design Engineers E2 Landscape Architecture Asheville, NC May 23, 2016 MAY 2 6 1015 L41'0 QUALIry r;j671®N Received JUN 13 2016 Land Quality Section Asheville ROBINSON DESIGN ENGINEERSSM Land.Water. Ecology. STORMWATER TECHNICAL REPORT -----TABLE OF CONTENTS 1. EXECUTIVE SUMMARY 4 2. EXISTING SITE ASSESSMENT 4 3. PROPOSED DESIGN CONCEPT 5 4. DESIGN STANDARDS 6 APPENDICES 8 ------LIST OF APPENDICES SUMMARY OF MODEL VARIABLES POND TABLES (ELEVATION — AREA — VOLUME) HYDROGRAPHS CONDUIT FLOW CAPACITY HYDROLOGIC SOIL GROUPS NOAA PRECIPITATION FREQUENCY DATA SOIL INVESTIGATION LOG SHEETS Rabbit Patch — WNC Ag Center / May 23, 2016 Page 3 Rabbit Patch — W NC Ag Center / May 23, 2016 1 Executive Summary The WNC Agricultural Center (Ag Center) is located on NC Hwy 280, between Interstate 26 and the French Broad River. The Ag Center is proposing a new parking area on their parcel. Based on correspondence with Mike Randall (NCDEQ, DEMLR) the stormwater must be treated in accordance with the rules for high density development (15A NCAC 02H.1000). 2 Existing Site Assessment 2.1 Topography The site is relatively flat at the location of the proposed stormwater wetland. Further up the site, the grades become gradually steeper, ranging from 2% to 8 % . There is approximately 25 vertical -feet of total elevation change (elevation 2084'to elevation 2059') across the proposed parking area; the high point lies in the north- eastern portion of the site, and the low point is to the south-east. Existing drainage patterns discharge primarily to the south-eastern portion of the site. 2.2 Soils The soils at the site are classified within hydrologic group C: Group C — meaning they have a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission (0.05 — 0.15 in/hr). Sandy clay loam is a typical soil texture classification for this group. This information was taken from the USDA-NRCS SCS method, 1986. A Hydrologic Soil Group map is attached in the appendix. 2.3 Land Cover The existing cover consist of woods, light underbrush, and meadow. This portion of the Ag Center was historically used as testing grounds for hunting dogs, and the cover still resembles this use: a gridded system of shrubs and short grasses. The Curve Number for the existing conditions is set at 73, and can be described as woods that are grazed but not burned, with some forest litter covering the soil (Urban Hydrology for Small Watersheds TR-55). 2.4 Flow Path The most hydrologically remote point is within drainage area #2 (identified on the stormwater plans as DA# 2). From the north-eastern corner of this drainage area to the south-eastern corner consists of 200 LF of sheet flow across woods with light underbrush, then 150 LF of shallow concentrated flow across grass. The time of concentration for the existing site is set at 30 minutes in the model. 2.5 Groundwater A soil investigation and site evaluation log is provided as an appendix. This data reveals two areas of high ground water. Both of these measurements were taken in the vicinity of the proposed stormwater wetland. According to the log sheet, and the available topography, the water table appears to be at elevation 2061 to the south of the proposed parking area. The proposed stormwater wetland was designed around this information, allowing the wetland to function without augmenting with impermeable clay layers. Page 4 Rabbit Patch — WNC Ag Center / May 23, 2016 2.6 Streams and Wetlands There has been no indication as to the presence of waters of the US at the site. 2.7 Precipitation Precipitation values were obtained from the NOAA point precipitation frequency server and are shown in the table below: Storm Depth Intensity 1 yr, 24hr 2.95 in 0.123 in/hr 10yr, 24hr 5.00 in 0.208 in/hr 25yr. 24hr 5.90 in 0.246 in/hr 3 Proposed Design Concept Stormwater management is any vegetative, structural or managerial practice used to treat, prevent, or reduce the volume of runoff water that impacts surface or groundwater. Runoff water is rain water, snow melt or irrigation which does not infiltrate into the ground and runs over or off the land, picking up soil particles and other pollutants as it travels and carrying them to the storm drain system. At this site, once the stormwater exits the drainage system, it then enters Kimsey Creek, a small class-C tributary of Cane Creek, and eventually flows to the French Broad River. This section describes the existing conditions and features of the site, the conceptual drainage plan, and stormwater drainage calculations. 3.1 Proposed Use and Materials The proposed treatment device is a stormwater wetland. Stormwater wetlands are constructed systems that mimic the functions of natural wetlands and use physical, chemical, and biological processes to treat stormwater pollution. Wetlands are effective sedimentation devices and provide conditions that facilitate the chemical and biological processes that cleanse water. Pollutants are taken up and transformed by plants and microbes, immobilized in sediment, and released in reduced concentrations in the wetland's outflow. The water levels within the stormwater wetland will be controlled by a reinforced concrete outlet device. The outlet device will have low -flow orifices and a high -flow, weir, along with a drawdown mechanism for regular maintenance. 3.2 Proposed Drainage Plan The proposed treatment device (stormwater wetland) accepts flow from 2 different locations. The primary inflow, on the western side of the device, makes up 90% of the contributing drainage area. 3.2.1 Erosion Control The erosion control plan, including diversion swales, are designed by others. 3.2.2 Off -site Runoff The grading and erosion control plans have been designed so that all off -site runoff is directed away from the parking area and stormwater treatment areas. 3.2.3 Flow Path The most hydrologically remote point is within drainage area #2 (identified on the stormwater plans as DA# 2). From the north-eastern corner of this drainage area to the sediment clean -out consists of 300 Page 5 Rabbit Patch - W NC Ag Center / May 23, 2016 LF of sheet flow across a gravel parking area; then 100 LF of shallow concentrated flow. 3.2.4 Stormwater Conduit All stormwater conduit is specified as 18' RCP with a minimum slope of 3%. This conduit has a maximum flow of 20cfs and can accommodate the 25yr, 24hr storm event at all locations throughout the site. 3.3 Sediment Management We have estimated the erosive potential of the proposed parking area with the universal soil loss equation (USLE). The USLE is an empirically derived equation that predicts the long-term average annual rate of erosion on a slope based on rainfall pattern, soil type, topography, land use, and management practices. The Ag Center can expect to lose approximately 1,000 cubic feet of sediment from the proposed parking area each year. This amount of sediment will be managed through the pre-treatment devices: 2 sediment clean - outs, and 1 grassed swail. These pre-treatment devices can accommodate approximately 2,600 cf of sediment. 3.4 Model Input Parameters Hydrologic modeling software HEC-HMS was used to perform rainfall -runoff pond routing calculations. An electronic copy of this model can be provided at your request. A summary of modeling variables are shown in the appendices. 3.4.1 Hydrologic Soil Group The underlying hydrologic soil group before and after construction is wholly within Class C. 3.4.2 Curve Number The CN value for the proposed site is 89, found on table 3-5 of the NCBMP manual. This is the value for impervious, gravel in urban areas as defined in the SCS method (SCS, 1986) 3.4.3 Time of Concentration A conservative minimum time of concentration of 5 minutes was used for the model. The most hydrologically remote point is within drainage area #2 (DA# 2 as seen on the stormwater plans). 4 Design Standards The stormwater control measures must meet the following design standards for high density projects (NCAC 02H .1008): • Draw down the treatment volume no faster than 48 hours, but no slower than 120 hours. • Discharge the storage volume at a rate equal to or less than the predevelopment discharge rate for the one-year, 24-hour storm. Remove an 85 percent average annual amount of Total Suspended Solids. Meet the General Engineering Design Criteria. 4.1 Draw Down Time The treatment volume was calculated using the Simple Method, as outlined in the NCBMP Manual. This methodology yields 9,365 cf, when using values of I, = 0.9, RD = 1 ", Rv = 0.86, and a total drainage area of 3 acres. Page 6 Rabbit Patch — WNC Ag Center / May 23, 2016 The low -flow mechanism consist of two- 1.5" diameter orifices. While the treatment volume is being detained, the maximum outflow rate is approximately 0.11 cfs and requires approximately 64 hrs to deplete back to the permanent pool elevation. 4.2 Peak Flow Attenuation The peak flows for the various models are shown in the table below. These values are for the 1 yr, 24hr storm event. Basin Drainage Area Peak Discharge Existing 3.0 acres 1.4 cfs Proposed 3.0 acres 7.4 cfs Proposed+Pond 3.5 acres 1.3 cfs Additional calculations and the hydrographs associated with these simulations can be found in the appendix. 4.3 Pollutant Removal The stormwater wetland was designed in accordance with the NCBMP manual, and it will meet or exceed all of the standards listed in the "Major Design Elements" section. A stormwater wetland that incorporates all of the Major Design Elements is given regulatory credit for pollutant removal at the following rates: 85% Total Suspended Solids, 40%Total Nitrogen, 35 % Total Phosphorus. 4.4 General Engineering Design Criteria As evidenced by the Stormwater Plan and Details, this design meets all of the design criteria listed in NCAC 02H .1008. END OF NARRATIVE Page 7 SUMMARY OF MODEL VARIABLES Basin: Basin 1 Last Modified Date: 21 May 2016 Last Modified Time: 17.33:43 Version: 4.1 Fllepath Separator: Unit System: English Missing Flow To Zero: No Enable Flaw Ratio: No Compute Local Flow At Junctions: No Enable Sediment Routing: No Enable Quality Routing: No End: Subbasm: Existing Basin Last Modified Date: 20 May 2016 Last Modified Time: 19:50:07 Canvas X: 1561.338289962825 Canvas Y: 3178.438661710037 From Canvas X: 3091.1680911680915 From Canvas Y:-1039.8860398860397 Area: 0.0046875 Canopy: None Plant Uptake Method: None Surface: None LossRate: SCS Percent Impervious Area: 0.0 Curve Number: 73 Transform: SCS Lay: 30 Unitgraph Type: STANDARD Baseflow: Recession Recession Factor 1 Initial Baseflow:0 Threshold Flow End: Subbasin: Proposed Basin Last Modified Date: 19 May 2016 Last Modified Time. 19:55:28 Canvas X: 4665.242165242165 Canvas Y: 3390.3133903133903 Area: 0.0046875 Downstream: WETLAND Canopy: None Plant Uptake Method: None Surface: None LossRate: SCS Percent Impervious Area: 0.0 Curve Number: 89 Transform: SCS Lag: 5 Unitgraph Type: STANDARD Baseflow: Recession Recession Factor: 1 Initial Baseflow:0 Threshold Flow End: Subbasin: wetland area Last Modified Date: 21 May 2016 Last Modified Time: 17:42:33 Canvas X:-6955,40308747856 Canvas Y:-385,9348198970847 Area: 0.0007 Downstream: WETLAND Canopy: None Plant Uptake Method: None Surface: None LossRate: SCS Percent Impervious Area: 0.0 Rabbit Patch — WNC Ag Center / May 23, 2016 Page 9 Curve Number: 90 Transform: SCS Lag:1 Unitgraph Type: STANDARD Baseflow: Recession Recession Facloc 1 Initial Baseflow:0 Threshold Flow to Peak Ratio: 0 End: Reservoir: WETLAND Last Modified Date: 21 May 2016 Last Modified Time. 17:43:02 Canvas %:-5315.985130111525 Canvas Y: 613.3828996282527 Route: Controlled Outflow Roofingg Curve: Elevation -Area Initial ROOM Equals Inflow: Yes Elevation -Area Table: Table 1 Adaptive Control: On Main Tailwater Condition: None Auxiliary Tailwater Condition: None Conduit: Orifice Conduit Outlet: Main Orifice Coefficient: 0.6 Orifice Area: 0.012272 Centerline Elevation: 2060.5 Number Barrels: 2 End Conduit: Spillway: Broad -Crested Spillway Spillway Outlet: Main Spillway Crest Length: 12 Spillway Crest Elevation: 2061.4 Spillway Coefficient: 3,0 End Spillway: Evaporation Method: Zero Evaporation End Evaporation: End: Basin Schematic Properties: Last View 15000,0 Last View S:-5000.0 Last View W: -50000 Last View E: 5000.0 Maximum View N: 5000.0 Maximum View S:-5000.0 Maximum View W:-5000.0 Maximum View 15000.0 Extent Method: Elements Buffer: 0 Draw loons: Yes Draw Icon Labels: Name Draw Map Objects: No Draw Gridlines: No Draw Flow Direction: No Fix Element Locations: No Fix Hydrologic Order: No End: Meteorology: Met 1 Last Modified Date: 19 May 2016 Last Modified Time: 19:43.59 Version: 4.1 Unit System: English Set Missing Data to Default: No Precipitation Method: SCS Storm Short -Wave Radiation Method None Long -Wave Radiation Method None Snowmelt Method: None Evapotranspiration Method: No Evapotranspiration Use Basin Model: Basin 1 End: Precip Method Parameters: SCS Storm Last Modified Date: 21 May 2016 Last Modified Time: 14:03.05 Storm Depth: 2.95 Storm Type: Type II End: Subbasin: Proposed Basin Last Modified Date: 19 May 2016 Rabbit Patch — WNC Ag Center / May 23, 2016 Page 10 Last Modified Time: 19:43:59 Vapor Pressure Type: Relative Humidity End: Subbasin: Existing Basin Last Modified Date: 19 May 2016 Last Modified Time: 19:43:59 Vapor Pressure Type: Relative Humidity End: Subbasin: wetland area Last Modified Date: 21 May 2016 Last Modified Time: 17:36:53 Vapor Pressure Type: Relative Humidity End: Rabbit Patch — W NC Ag Center / May 23, 2016 Page 11 POND STORAGE TABLE Elevation Storage Area Storage Area Storage Volume ft sf acre cf 2060.5 13,900 0.00000 0 2061.0 17,200 0.39486 8,600 2061.5 21,140 0.48531 19,170 2062.0 22,790 0.52319 30,565 2062.5 26,133 0.59993 43,632 POND STORAGE 30,000 45,000 40,000 25,000 , -- — -- ---- — — 35,000 20,000 30,000 25,000 15,000 - - --- — -- -- ---- r 20,000 i 10,000 - -- — — -- -- -- — 15,000 10,000 5,000 + Storage Area L 5,000 — Cumulative Storage Volume._ 0 2060.0 2060.5 2061.0 2061.5 2062.0 2062.5 2063.0 ELEVATION Subbasln "Existing Basin" Results for Run "Run 1" 0.00 0.05 O10 2 0.15 s v 020 o I 0.25 0.30 0.35 14 12 1.0 0.8 N U GS 0.6 LL I DA 02 0.0 00.00 12:00 0000 1200'.0000 01Jan2000 I 02Jan2000 I 03Jan2000 Legend (Compute Timme: 23MeY71116, u:ot:oo) Run: Run 1 Element: Existing Basin Result: Precipitation Run Run 1 Element'. Existing Basin Result Precipitation loss Run'. Run 1 Element. Existing Basin Result. Outflow --- Run:Run 1 Element: Existing Basin Result:Basellow 1 yr. 24hr storm event Graph for Subbasin "Proposed Basin' Subbasln "Proposed Basin" Results for Run "Run 1" 0.00 0.05 0.10 C 0.15 - -�i w 0.20 0.25 � 0.30 I ----- ---- 0.35 B 7 i 6 5 N `u 4 I ?: O I M 3 2 I '— 0 00:00 12:00 00:00 12:00 00:00 D1Jan2000 I 02Jan2000 03Jan2000 d (ca"pute rime: 37My2Dt6, 21:01:00) Run:Run 1 Element:Proposed Basin Result:Precipitation Run:Run 1 Element Proposed Basin Result:Precipitation Loss Run: Run 1 Element: Proposed Basin Resuh:0utflow --- Run:Run 1 Element:Proposed Basin Resuh:Baseflow 1yr, 24hr storm event IN Cuaph for Reservoir -WETIANIY—" 0.30 0.25 LL 0.20 U a m 0.15 m 0.10 0 0 I 01Jan2000 Legend (Compute Tme: 2-Way2016, 1L•01:00) ----- Run: Runt Element:WETLAND Result:Storage --- Run. Run 1 Element: WETLAND Result: Combined Inflow Reservoir "WETLAND" Results for Run "Run 1" 2,061,60 2,061 40 2,061.20 2,061.00 tTi -- 2,UbU.t1U 2,060.60 2.060 40 02Jan2000 I 03Jan2000 Run: Run 1 Element:VYETLAND Result:Pool Elevation Run: Run 1 Element WETLAND Result Outflow 1 yr, 24hr storm event e b w - .-. - ::—i..•. �:i�.a`aT- �.... w. •-... -.. c, v:.- --x��.=: �n cv...+,e.-iFF:.i a�r�R°'"„u��m-.iti'�—'l�"-.-u.�'9s:}'ia'nFlliFa"'.Yv!Yii+aFaiYiA\=?ll'.- '`.'R#�!,94�?iA�'Y�'� WETLAND 0000 1200 00:00 12:00 00:00 01Jan2000 I 02Jan2000 I 03Jan2000 LeQKW -DATA CHANGED, RECOM E Run:Run 1 Element: WETLAND Result: Pool Elevation 1yr, 24hr storm event 0.10 420.06 u_ M 0000 12:00 I O1Jan2000 Lid - DATA OWE®, REOODPUfE — Run:Run 1 Element: WETLAND-OUTLET-1 Result:0utlet 1 1yr, 24hr storm event 12:00 00:00 02Jan2000 03Jan2000 WETLAND L2 1.0 0.8 0.6 0 tl 0.4 —' 0.2 -- 0.0 0000 1200 00:00 12:00 00:00 01Jan2000 02Jan2000 03Jan2000 Legend -DATA OW4M), RECOWUTE — Run:Run 1 Element: WETLAND-SPILL-1 Result:Spilhaay 1 1yr, 24hr storm event k'I Graph Results 4- 112 10 0.8 u 3 0 u_ 0.6 04 02 0.0 i 00 00 Legend - DATA CHANta), RECa%PUtE 1200 01Jan2000 Run Run 1 Element WETLAND Result. Outflow 0000 tyr. 24hr storm event 1200 00.00 02Jan2000 03Jan2000 OUTLET PIPE Set units: m mm ft inches Pipe diameter, do 1.5 ft Manning roughness, n ? .011 Pressure slope (possibly ? equal to pipe slope), So .03 rise/run Percent of (or ratio to) full depth (100% or 1 if flowing full) 75 % Results Flow, q 19.60591 cfs Velocity, v 13.7909 tt/s, Velocity head, h 2.9559 ft Flow area 1.4217 fr2 —Wetted perimeter 3.1416 it Hydraulic radius 0.4525 it ® op width, T 1.2990 it Froude number, F .32 Shear stress (tractive force), tau .1073 1 psf a^1s WN E^ 25L'N s Hydrologic Soil Group --Buncombe County, North Carolina, and Henderson County, North Carolina 3 x B 360a30 3fi0960 300330 361@0 361050 MIUM s � owsae:l:1,SOOrpYvdonAlluaat(9.5:13'�4e� _ Mimes N 0 20 40 eD 120 A r 0 50 100 200 300 N� P�0learm. NCb Meng Cariu moidYaNs: WG5e4 E>i9e tl5:11t1A Zone SIN WTTv84 usun Natural Resources Web Soil Survey i� Conservation Service National Cooperative Soil Survey a x' 31 N 8 8 R 8 S K R 8 R 0 xvrN 361110 361190 a g 2l24t2016 Page 1 of Hydrologic Soil Group —Buncombe County. North Carolina, and Henderson County. North Carolina MAP LEGEND Fill ��l�k��OrALT— OUl Area of Interest (A00 13 C The soil surveys that comprise your AOI were mapped at scales Area of Interest (AOII CID ranging from 1:12,000 to 1:20,000. soils ■ 0 Warning: Soil Map may not be valid at this scale. Soil Rating 0 Polygons A Not rated or not available Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line 0 aD water Features placement. The maps do not show the small areas of contrasting Streams and Canals soils that could have been shown at a more detailed scale. o B BID Transportation Please rely on the bar style on each map sheet for map ,.,., Rafls measurements O C. Interstate Highways Source of Map: Natural Resources Conservation Service CID uS Routes Web Soil Survey URL. http://websoilsurvey.nres.usda.gov D Coordinate System: Web Mercator (EPSG:3857) Major Roads Not rated or not available Local Roads Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts Soil Rating Lines Background distance and area. A projection that preserves area, such as the A Aerial Photography Albers equal-area conic projection, should be used A more accurate ..i AID calculations of distance or area are required. B This product is generated from the USDA-NRCS certified data as of ti the version cartels) listed below. i✓ BID Soil Survey Area: Buncombe County, North Carolina .v C Survey Area Data: Version 12, Sep 29, 2015 .v CID Soil Survey Area: Henderson County, North Carolina ti D Survey Area Data: Version 15, Sep 15, 2015 .. Not rated or not available Your area of interest (AOI) includes more than one soil survey area. These survey areas may have been mapped at different scales, with Soil Rating Points a different land use in mind. at different times, or at different levels ■ A of detail. This may result in map unit symbols, soil properties, and interpretations that do not completely agree across soil survey area ■ A/D boundaries. ■ B Soil map units are labeled (as space allows) for map scales 1:50,000 ■ B/D or larger. Date(s) aerial images were photographed: Oct 15, 2011—Dec 9. 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting i su.\ Natural Resources Web Soil Survey 2/24/2016 Conservation Service National Cooperative Soil Survey Page 2 of 4 Hydrologic Soil Group —Buncombe County, North Carolina, and Henderson County, North Carolina Hydrologic Soil Group Hydrologic Soil Group —Summary by Map Unit — Buncombe County, North Carolina (NCO21) Map unit symbol Map unit name Rating Acres In AOI Percent of AOI Ud Udorthents, loamy C 5.0 80.2% UhE Udorthents-Urban land A 0.1 1.9% complex, 2 to 50 percent slopes Urt lend — ' 1.0 15.9% Lb( Subtotals for Soil Survey Area - _ 6.1 Totals for Area of Interest 6.3 100.0%j, Hydrologic Soil Group —Summary by Map Unit — Henderson County, North Carolina (NC089) Map unit symbol Map unitname I Rating Acres in AOI Percent of AOI BaB Bradson gravelly loam. 2 B 0.1 1.0% to 7 percent slopes BaC Bradson gravelly loam, 7 B 0.0 0 a % to 15 percent slopes DeA Delano (dillard) loam, 0 C 0.01 0.6% to 2 percent slopes Subtotals for Soil Survey Area 0.1 2.0 % Totals for Area of Interest 6.3. 100.0% usDA Natural Resources Web Soil Survey 224/2016 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group —Buncombe County, North Carolina, and Henderson County. North Carolina Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration stones. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie -break Rule: Higher U517w Natural Resources Web Soil Survey 2/2412016 Conservation Service National Cooperative Soil Survey Page of 5/19/?n1h Precipitation Frequency Data Server Non n Atlame: let Volume t Version 3 Location name: Fletcher, North Carolina, Latitude: 35.4151°, Longitude:-82.5266' {f Elevation: 2046 ft' source Google Maps„ POINT PRECIPITATION FREQUENCY ESTIMATES G.M Bonnin. D Martin. B Lin, T Parrybok, M Yekla. and D Riley NOM. National Weather Service, SINer Spring, Maryland PF tabular I PF graphical I Maps 8 aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches Average recurrence Interval n��00 Du;;Z ��� 1 2 6 �� 10 26 0 80 � 100 200 600 1000 0.367 0.437 0.52J 0.690 0.676 0.741 0.806 0.872 OA58 1.03 6-fnin (0.331-0.408) (0.3940.485) (0.472-0.582) (0.530-0.653) (0.602-0.747) (0.657.0.819) (0.712-0.894) (0.765.0.969) (0.830-1.07) (0.1180-1.16) 0.588 one 0.943 1.08 7.16 1.26 1.J9 1.61 1.82 10-min (0.528-0,652) (0,83(.0.776) (0.755-0.931) (0.647-1.04) (0.959-1.19) 1 (1,05-1.30) 1 (IA3-1.42) 1 (1.21-1.54) (1.31-1.69) (1.39-1.82) 0.732 0.878 1.08 1.19 1.38 1.49 1.82 1.76 1.91 2.03 16-min (0.e60.0.815) (0.792-0.975) (0.955-1.18) 1 (1.07-1.32) 1 (1,22.1.51) 1 (1.32.1.85j (1.43-1.79) (1.53-1.94) (1.W2.13) 1 (1.742.28) 100 1.21 1.61 1.73 2.02 2.26 2.48 L72 3.04 3.20 JO-min (0.9051.12) 1 (1,09-1.35) 1 (1.38.1.67) 1(1.55-1.91)1 (1.80.2.24) 1 (1.99.2.49) 1 (2.19-2.75) (2.38-3.02) (2.63-3.39) (2.82-3.70) 1.26 1.62 1.93 2.26 2.69 3.06 3.42 3.81 4.36 4.80 80-min (1.13-139) 11 (137-1.69) 11 (174215) 1 (2.02-2.49) 1 (2.40.2.98) (2.70-3.37) 11 (3.02-3.79) (3.344.23) (3.77-4.87) (4.11-5.39) 1A7 1.78 2.26 2.62 3.1t 3.67 4.01 4.49 &18 0.71 2-hr (1.32-1.63) 1 (1.60-1.97) 1 (2.02-2.49) 1 (2.342.90) 1 (2.79-3.48) (3.15-3.85) (3,52-4.46) (3.90.4.99) (4.42-5.76) (4.84-6.41) 1.57 1.89 2.38 277 3.36 3.83 4.J4 4.89 0.68 6.36 3-hr (1.42-1.76) (171-2.11) (2.13.2.64) (2.46-3.08) (2.97-372) (337-4.28) (3.79J.83) (4.22-5.46) (4.846.39) (5.347.17) 1.97 2.36 2.90 J.37 4.06 4.83 0.26 0.8• 8.93 7.77 8-hr (1 BO-2.17) 1 (2,14-2,58) 1 (2.643.18) (3.05.3.70) 1 (3.64-4.45) 1 (4.13-5.08) (4.645.78) (5.18-6.55) (5.96-7.89) (8.59-8.67) 2.49 2.97 J.64 4.18 4.0.1 6.66 8.18 6.86 7.78 0.62 12-0r (2.29-2.71) 1 (2.72-3.24) 1 (3.343.97) (3.83-4.56) 1 (4.49-5.38) 1 (5.03.6o6) (558476) (8.13-7.52) (8.89-8.61) (7.47-9.50) 2.86 3.64 4.38 6.00 6.90 8.0.1 7.J8 0.16 9.2J 10.1 24hr (2,73-320) (328-3.84) (4.034.72) (4,62-5.42) (5.43-6.38) (6.08-7.17) (6.73-7.96) (7.40-e.81) (8.31.9.89) (9.01-10.9) 3.60 4.18 6.10 6.83 8.83 7.64 0.47 l.33 10.6 11.4 241sy (3.26-3.78) (3.894.51) (4.74550) (&41-6.28) 1 (6.32-7.35) (7.04-8.22) 1 (7.77-9.13) (8.51-10.1) (9.52-11.4) (10.3-12.4) 1.74 4.46 6.38 8.12 7.1J 7.l2 0.71 8.68 10.7 11.6 (3,48-4.01) 1 (4.154.79) (5.01.5.78) 11 (5.611 1 (6.60-7.64) (7.32-6.50) (8,04-9.39) (8.78-10.3) (9.7241.5) (10.5-12.5) 3.97 4.79 6.87 6.42 7.42 8.20 9.00 9.80 10.9 11.7 4- y (3.714.25) 1 (4.42-5.08) (5.29-6.07) 1 (5,91-6.87) 1 (6,89-7.94) (7.80.8.78) (8.30-9.65) (9.01-10.5) (9.93-11.7) (10.7-12.7) 4.63 6.49 8.68 7A6 6.83 9.68 10.6 11.6 12.8 1J.8 Thy (4.324.96) 1 (5.13-5.89) (6.15-7.06) (6.95-7.98) (8.02-9.23) (8.86.10.2) (9.71.11.3) (10.8-12.3) (11.7-13.7) (12.5-14.9) 6.2! 6.27 7.43 0.36 9.61 10.8 11.6 12.6 13.9 'so 10-d9y (4.W5.63) (5.90.8.97) (7.01-T91) (7.87-8.88) (9.01-10.2) (9.91.11.3) (10.8-12.3) (11.7-13.4) 1 (12.9-14.9) (13.8.16.1) 7.19 6.46 9.82 10.8 12.3 13.3 14.3 /0.3 18.8 17.6 (8.80-7.80) (8,004-94) (9.29.10.4) (10.3.11.5) (11.6-13.0) (12.5-14,1) (13.5-15.2) (14.418.2) (15.5-17.6) (18b18.7) 0.62 10.3 11.8 13.0 14.4 16.4 18.4 17.J as 19.3 30-d9y (8.37-9.30) 1 (9.82.10.9) 1 (11.2-12.5) (12.3.13.7) 1 (13.6-15.1) 1 (14.6-16.3) 1 (15.5-17.3) 1 (16.3-18.3) (17.419.6) (18.1-20.5) 13.1 14.8 18.0 17.4 18.6 19.4 20.J 21.3 22.0 F45�;y11.2 46 dey (1107-11.8) (12.5.13.8) (14.0-15,5) (15,ZI8.6) (16.6-18.3) (17.5-19.4) (18.420.4) (19.2-21 3) (20.2-22.5) (20.5.23.2) 13.5 18.7 17.6 18.8 20.4 21.6 226 23.4 24.4 26.1 80-d (12.&14.2) (149-185) (16.7-18.4) (1T9-198) (19.4-21.5) (205-22.7) (21.423.7) (22.2-24.7) (23.1-25.8) (23A-2e.6) t Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbersm parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values Please refer to NOM Atlas 14 document for more information. PF graphical http://hdw.nws.noes.gov/hdw/pfds/pfds_printpage.html?lat--3SA[51&Ion=-825266&data=depth&unims nglish&series=pds 1/4 5/19/2016 Precipitation Frequency Data Server PDS-based depth -duration -frequency (DDF) curves Latitude 35.41510, Longitude-82.5266° 30 25 $ 20 a w v 15 i10 5 0 C C C C C � T TT T T T T TT E E E ppE ppE L L t tN t m m m m m pm p m ro ppm O N In O r0 Duration K'rl 25 c 20 v 4 15 10 5 50 1000 100 200 500 1 2 5 10 25 Average recurrence interval (years) NOAA Atlas 14. Volume 2, Version 3 Created (GMT): Thu May 19 1749.13 2016 Aerage recurrence rmereal (yews) 1 2 5 10 -- 25 50 100 200 500 1000 Duration 5-min — 2day — 10mn — 3day 15-min — 44ay — 30inm — 7-day — 5Dmm — IGday — 2+v — 20-day — 3-nr — 30day — 6t1r — 45day — 12-hr — 80day, — 24-hr Back to Too Maps & aerials Small scale terrain Blacksbu Daniel Boone National Forest:-- !v Kingsport e Cherokee National Forest" Cookevdie ' G Greensboro ` Knoxville 't - Winston -Salerno 0 0 yr. Pigeon Forge 4 _ NOR T � ,YAshevill 'Hickory C A R O L Charintte help://hdw.nws.nose.gov/hdw/pids/pfds_prinlpagchnnl'lai +5415IKInn 92.5266&data=depth&units=english&series=pds 2/4 5119/2016 Precipitation Frequency Data Server Chattaonooga d „ ,.A ;, r {" A t'4 yr.�,�;T. Greenville -Spartanburg oRock Hill .46 41, hanahooch"; ° — / 1 '1 National Fgrest _ Anderson ® Florence Alpharetta ., ° Athens oSOUTH Atlanta CAROLINA GO gle SO km Map data Report a map error Large scale terrain 280 319] t3 Oak Park. Ashevitl t Region al Airpa' 'FI ('tias cau ua Fletcher 0 1351 I �Jafi �F �. 134, i �339 [13 33 Mills River i �i5 141s 1•�al i G0 gle )km Map Rep°rtamupevor Large scale map U 3191 Oak Park 1359 Asheville Regional Airport 41"s G9, RJ Fletcher Rd 1556 13a8 ... 191 S 1351 290 ' v g 1555 l 153 v 1345 1354 1338 1353 j Haple Mills River 335 5 } ra V4Or gle r 2 km Map Reppn a map error http://hdsc.nws.nose.gov/hdsc/p(ds/p(ds_printpage.htm171at--35A151&Ion=$25266&Aata=depth&unims nglish&series=pds 3/4 ill 9120 16 Precipitation Frequency Data Server Go gle 2 km Imagery t Report a map enor Back to Too US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring. MD 20910 Questions? HDSC.Questions(&noaa.00v sclamer http://hcisc.nws.noes.gov/hdw/pfdstpfds_printpage.html?latJ54151&ion=-825266&dau=depth&uniLs nglish&series=pds 4/4 William Miller NCDA - Division of Soil and Water Site Evaluation and Soils Investigation Log Sheet Soil Map Unit Symbol and Name Ud = Udorthents. Adjacent soils are mapped Ko (Kinkora) and DeA (Delanco/Dillard). Adjacent upland soils are mapped BaB (Bradson) Dominant Species Observation of occasional bulrush. Red twigged dogwood present, although unable to estimate dominance. Site Observations: Soils are mapped Udorthents, which implies anthropogenic alteration. Some alteration was evident from observation of texture inversion in surface horizons. The site in its entirety contains several landforms. The north east quadrant of the property begins as a sideslope off of a finger ridge which transitions from the northeast to the southwest into a footslope and a terrace. Based on field observation native soils at the lower elevations were likely Kinkora series soils, which are poorly drained fine textured hvdric soils on stream terraces. Field indicators showed soils transitioning from poorly drained and hvdric to somewhat poorly drained and non hvdric to well drained as elevation was gained through the site. All reported observed soils were somewhat poorly drained or wetter, indicating need to mitigate for a seasonally high water table and potential for ponding in depressed areas during wet weather. Profile Description #1 Location Description: Small depressional area in landscape Coor: 627723.31 N 948330.24 E PDOP = 1.38 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-9 30 YR 4/3 — Fine Friable Slightly to Weak/ weak Oxidized root channels, 10 YR 4/2 sandy moderately to strong 10% fine mica flakes loam to plastic/ sandy slightly clay sticky loam 9-16 10 YR 5/1= Sandy Friable to Moderately Weak/ weak 10 YR 6/8 = 30% 70% clay firm plastic/ to strong concentrations in matrix loam to slightly fine sticky sandy loam 16-28 10 YR 5/1 = Clay Firm Moderately Weak to SO YR 6/8 = 30% 80% loam to plastic to strong concentrations in matrix sandy plastic/ clay slightly loam sticky Notes: Taken near slight swale running N-S. Standing clear water — Y." in small( 1' diameter) pool adjacent to sampling site. Water table at 22" after 10-15 minutes. at 4" overnight (overnight no water ponded on surface). Likely Kinkora soils :: Poorly drained/hvdric Profile Description #2 Location Description: Upslope of Hole #1— upper extent of depressional area soils Coor: 627782.5 N 948350.2 E PDOP = 1.46 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-8 10 YR 4/3 = Sandy Friable Slightly None to 7.5 YR 4/6 — SYR 4/4 = 90% loam plastic/ non weak 10% mottles in matrix sticky 8-16 30 YR 5/6 = Sandy Friable to Moderately Weak/ weak 5 YR 5/8 = 15% 70% clay firm plastic/ to strong 10 YR 4/2 = 10% loam slightly 10 YR 5/8 = 5% sticky All mottling in matrix 16-32 10 YR 5/6 = Sandy Friable to Moderately Weak/ weak 10 YR 6/1 = 35% 45% clay firm plastic/ to strong Zoned mottling, 7.5 YR loam slightly 5/6 outer and SYR 5/8 in sticky center = 20% Notes: Likely Dillard soils:: Somewhat poorly to poorly drained/ non hvdric Profile Description p3 Location Description: Depressional area, low spot on landscape Coor: 627627.4 N 948544.0 E PDOP = 1.37 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-10 30 YR 4/3 = Sandy Friable Slightly None to 7.5 YR 4/6 mottling in 90% loam plastic/ non weak matrix and pore lining = sticky 10% 10-16 10 YR 4/2 = Sandy Friable Slightly None to 7.5 YR 4/6 mottling in 70% loam plastic/ non weak matrix and pore lining = sticky 10%, 10 YR 4/6 = 20% 16-24 10 YR 5/1 = Clay Firm Moderately Weak to 10 YR 5/6 = 5% 95% loam plastic to strong plastic/ slightly sticky Notes: Water table at 16" within 15 minutes Likely Kinkora soils :: Poorly drained/ borderline hydric Profile Description #4 Location Description: Low, depressional area on landscape Coor: 627611.56 N 948202.54 E PDOP = 1.18 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-3 7.5 YR 5/6 Loam to Friable to Slightly to Weak to 7.5 YR 4/2 with = 60% clay firm moderately strong oxidation in root loam plastic/ channels = 40% slightly sticky 3-12 7.5 YR 4/1 Clay Firm Moderately Weak to 7.5 YR 5/6 = 15% = 80% loam plastic to strong 2.5 YR 4/6 = 5% plastic/ mottling in matrix slightly sticky 12-24 7.5 YR 6/1 Clay to Firm Moderately Weak to 7.5 YR 5/6 = 40% = 50% clay plastic to strong 7.5 YR 4/1 = 10% loam plastic/ mottling in matrix slightly sticky Notes: Water table at 3" within 20 minutes Likely Kinkora soils that have been altered :: Poorly drained/hydric Profile Description #5 Location Description: Low, deoressional area on landscape Coor: 627710.52 N 948219.70 E PDOP = 1.48 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-2 7.5 YR 5/6 Loam to Friable Slightly to Weak/ Weak 7.5 YR 4/1 = 30% = 70% clay moderately to strong mottling in matrix loam plastic/ slightly sticky 2-15 7.5 YR 4/1 Loam to Friable Slightly to Weak to 7.5 YR 4/6 = 5% = 80% clay moderately strong 2.5 YR 4/6 = 15% loam plastic/ mottling in matrix slightly sticky 15-24 7.5 YR 4/1 Clay Friable to Moderately Weak to 2.5 YR 4/6 = 15% = 85% loam firm plastic/ strong mottling in matrix slightly sticky Notes: Water table visible at bottom of auger hole after 15 minutes Likely Kinkora soils that have been altered :: Poorly drained / hvdric Profile Description #6 Location Description: Representative of slightly elevated sections between the depressional areas sampled Coor: 627708.19 N 948281.35 E POOP = 1.39 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-10 10 YR 4/4 = Loam Friable Slightly Weak 10 YR 4/6 = 10% 90% plastic/ mottling in matrix slightly sticky 10-16 10 YR 5/2 = Sandy Friable Slightly to Weak to 10 YR 4/6 = 10% 90% Loam not plastic/ none mottling in matrix not sticky 16-24 7.5 YR 6/1 Clay/ Firm Moderately Weak to 7.5 YR 4/6 = 40% = 50% Clay plastic to strong 7.5 YR 4/1= 10% loam plastic/ mottling in matrix slightly sticky to moderately sticky Notes: Likely Kinkora soils:: Poorly to somewhat poorly drained / non hydric Profile Description #7 Location Description: Lower section of Property Coor: 627602.73 N 948390.99 E PDOP = 1.31 Depth (in) Color Texture Consistence Plasticity/ Stickiness Ribbon Other Features 0-3 10YR4/3 Loam Friable Slightly Weak plastic/ slightly sticky 3-12 10 YR 4/2 = Loam to Friable Slightly Weak 10 YR 4/6 =10% in root 80% clay plastic/ channels loam slightly sticky 10 YR 4/3 =10% mottling in matrix 12-24 7.5 YR 6/1 Clay/ Firm Moderately Weak to 7.5 YR 4/6 = 40% = 50% Clay plastic to strong 7.5 YR 4/1=10% loam plastic/ mottling in matrix slightly sticky to moderately sticky Notes: Water table visible at 12" after 15 minutes. Likely Kinkora soils :: Poorly drained / hydric Profile Description #8 Location Description: Area at upper fringes of depressional, wet areas Coor: 627733.5 N 948421.70 E PDOP = 1.74 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-8 10YR4/3 Loam to Friable Slightly Weak/Weak Clay plastic/ to strong loam slightly sticky 8-12 10 YR 4/3 = Loam to Friable Slightly Weak/Weak 10 YR 5/8 = 25% 50% clay plastic/ to strong 10 YR 5/2 = 25% loam slightly mottling in matrix sticky 12-24 7.5 YR 6/1 Clay/ Firm Moderately Weak to 7.5 YR 4/6 = 40% = 50% Clay plastic to strong 7.5 YR 4/1= 10% loam plastic/ mottling in matrix slightly sticky to moderately sticky Notes: Poorly to somewhat Poorly drained / non hydric Profile Description #9 Location Description: Area at upper fringes of depressional, wet areas Coor: 627735.0 N 948533.73 E PDOP =1.24 Depth Color Texture Consistence Plasticity/ Ribbon Other Features (in) Stickiness 0-10 10 YR 4/3 Loam to Friable Slightly Weak / Weak clay plastic/ to strong loam slightly sticky 10-16 10 YR 4/3 = Clay Friable to Slightly to Weak to 10 YR 4/6 = 20% 40% loam firm moderately strong 10 YR 5/2 = 40% plastic/ mottling in matrix slightly sticky 16-24 7.5 YR 6/1 Clay/ Firm Moderately Weak to 7.5 YR 4/6 = 40% = 50% Clay plastic to strong 7.5 YR 4/1=10% loam plastic/ mottling in matrix slightly sticky to moderately sticky Notes: Somewhat poorly drained / non hydric r mv:aws ..srn a rmo smn[r .wo rnw au raaa M WiWS (ewr-rwaru turd Eatthwtas. Vptumes Raw Cut: 21500 Cubic yards Raw Fill: 11,200 cub,c yards Soil Surplus Estimate: 7300 cubk vans Note: All cut and 611 slopes shall be 3:1 t" V ) srarE of NORTH cnaouNn WNC AG CENTER - RABBIT PATCH PARKING LOT ICE) IE&SC PLAN -SITE DEVELOPMENT PLAN au.coww ewe*r. edRnl erwaaes Page 1 of d eic1901Pc649 OCf: i c T C t-'C" -96 Rpp, 18 P 4 :08 Eadse Tea I Recorded Tore. Hook and Pace TaxLot No. ........... _.__.. . ............... ............. Parcel Identifier No. ....................... ..... ...... ....... ...._........... Verified by ........... ....... ...._.... .........,...... County on the ......._.._... do, of .... ........... ,.., ___._..., M..... ,..... by..... ... ... ........ .. ............... ................. . -..... -- .... .........._. ............ .. Mail after recording to ..._.___...._...Ni1.l.tam..F....S.lawter.,.. City., Attorney,_ City...Attorney.:S..Offi.ce................. .......... . ... .............. I--............ .Post..Offi.ce..OoX_I148,..Ashevi.I l e.,..North_Ca rol.ina..286(32-7148................... This instrument was prepared by---Wi) 1 iam. F,_.Sl awter ,...........,.,.._ _.................. ..... Brief description for the Index 18.2 Acres on Fanning Bride Road NORTH CAROLINA GENERAL WARRANTY DEED THIS DEED made this ...18 day of _._ L..r..__._................. .... 1J..! % — by and between GRANTOR CITY OF ASHEVILLE, a North Carolina municipal corporation GRANTEE THE STATE OF NORTH CAROLINA c/o Joseph H. Henderson State Property Office 116 N. Jones Street Raleigh, North Carolina 27603-8003 Enter In appropriate black far each party: aster, address, and, It aparnpriu(e, rharee(er Of entity. e.a. rornonnon or nirutershl, The designation Grantor and Grantee as used herein shelf Include .,aid parties, their heirs, socce... ra, and trisi,co, end .hall include singular, plural, masculine, feminine or nuts, is required by context. WITNESSETH, that the Greater, for a valuable consideration paid by the Grantee. the receipt of which is hereby acknowledged, he. and by these presents does grant, bar,.ln, all slid convey unto the Gran tea In fee simple, all that certain lot or parcel of hold situated in the City of ......_. Asheville .._....... ... ........ _...... Township, .... Buncombe.._ .. ... _.... ... Conicity, Net Carolina and more D itticnlarly deset Red as follown: See attached Exhibit "A Received JUN 13 7016 Land Quality Section Asheville Book: 1901 Page:649 Seq: 1 Prinbed by Corner5tor- Priaten. Inc Page 2 of 4 eK1901Pc650 EXHIBIT A BEGINNING at an iron pin which is located South 21 degrees 36 minutes 41 seconds West 612.69 feet (Ground) and South 23 degrees 38 minutes 51 seconds West 612.53 feet (Grid) from NCGS Monument "Rest" (NC Grid Coordinates (NAD 83) N191587.805m and E289213.047m, and runs thence from said Beginning point on a curve to the right having a radius of 663.94 feet, a chord bearing of South 59 degrees 23 minutes 33 seconds West 413.45 ' feet and an arc length of 420.44 feet to an iron pin; thence South 79 degrees 32 minutes 36 seconds West 342.65 feet to an iron pin; thence on a curve to the left having a radius of 5,839.58 feet, a chord bearing of South 80 degrees 15 minutes 48 seconds West 386.20 feet and an arc length of 386.27 feet to an iron pin; thence North 64 degrees 21 minutes 42 seconds West, crossing an iron pin at 52 feet, a total distance of 182.47 feet to a right of way monument, said right of way monument being located North 30 degrees 44 minutes 38 seconds West 216.86 feet from a County Line monument; thence North 02 degrees 48 minutes 04 seconds West, crossing an iron pin at 182.64 feet, a total distance of 445.09 feet to an iron pin; thence North 25 degrees 31 minutes 19 seconds West 89.43 feet to an iron pin located in the eastern margin of the 100' right of way of Airport Road; - thence with the eastern margin of said right of way, North 03 degrees 07 minutes 12 seconds West 63.53 feet to an iron pin; thence North 86 degrees 52 minutes 48 seconds East 300 feet to an - iron pin; thence South 03 degrees 07 minutes 12 seconds East 400 feet to an iron pin; thence North 86 degrees 52 minutes 48 seconds East 981.81 feet to the point and place of Beginning, containing 8.31 acres, more or less, and being shown on a survey dated November 17, 1995, last revised December 1, 1995, entitled "Survey of Addition to WNC Agricultural Center," prepared by Hutchison -Biggs & Associates, Inc. (B95-885) Being part of the property conveyed to the City of Asheville by - Deed dated April 4, 1956 from City Loans, Incorporated, and recorded in Deed Book 366 at page 607, Henderson County Registry. This conveyance is subject to the following restrictions, which shall be perpetual, unless sooner released by the Federal Aviation Administration: 1. Grantor reserves unto itself, its successors and assigns, for the use and benefit of the public, a right of flight for the passage of aircraft in the airspace above the surface of the real property hereinbefore described, together with the right to cause in said airspace such noise as may be inherent in the operation of aircraft, now known or . hereafter used, for navigation of or flight in the said airspace for landing on, taking off from, or operating on the Asheville Regional Airport. Book: 1901 Page:649 Seq:2 Page 1 of 4 eK 1 9 0 1 Pc 65 I (ATTACHMENT) 2. The Grantee expressly agrees for itself, its successors and assigns to restrict the height of structures, objects of natural growth and other obstructions on the hereinbefore described real property to a height not to exceed the imaginary surfaces in Federal Aviation Regulation Part '77, ^Objects Affecting Navigable Airspace." 3. The Grantee expressly agrees for itself, its successors, and assigns to prevent any use of the hereinbefore described real property which would interfere with landing or taking off of aircraft at the Asheville Regional Airport or otherwise constitute an airport hazard. 4. The Grantor retains and reserves necessary interests and rights to ensure that the land will only be used for purposes which are compatible with the noise levels generated by the airport. 5. No structures of any kind shall be built upon and no congregation of people shall at any time be allowed upon the following described portion of said property; BEGINNING at the right of way monument located at the southwestern corner of that 8.31 acre tract described hereinbefore and thence from said Beginning point North 02 degrees 48 minutes 04 seconds west 182.64 feet; thence South 27 degrees 54 minutes 49 seconds East 270.33 feet; thence North 64 degrees 21 minutes 42 seconds West 130.47 feet to the point and place of Beginning. g Book:1901 Page:649 Seq:3 Pape 4 of 4 BK1901Pc652 The property hereilabove described was acquired by Grantor by instrument recorded in A map showing the have described property Is recorded in Plat Book ....___ ........._. _.... .... page TO HAVE AND TO HOLD the afar ... id lot or parcel of land and all privileges and appurtenances thereto belonging to the Grant. to fee simple. And the Grantor covenants with the Grantee, that Granter Is seized of the premises in fee simple, has the right to convey the same in fee simple, that title is m°rkstable and free and clear of all encumbrances, and that Granter will warrant and defend the title against the lawful claim of all persons whomsoever except for the exceptions hereinafter stated. Title to the property hereinabove described is subject to the following exceptions: W wrx.a a w.... o:ueWe: e,e te< n < e<.<uow ..I eln <. Iva .n0 .1— .1 .ri urale, n. v 1 1.1., 1m1m... m e ..A p f:, se. rtllie•em. r n' ° h.a 11—•... m «.r m n. < <° n,ld .1 .1.-.r r es ne.m r m.n w, . A., ... I- t CITY- n _%51h HEVImu Ip ,my o•oraLionOY .... ......_...................... ....._AT C .... .... .. mean) Ci tY -- -- ! fDGty¢ffi,t4 AoL :a a 4 ug�) _ __ :. , n'2•; g,F+ 4 .. n.)kia(iy;pt, tn. cnaafr .aa s.a. .mrame. « our w.I .................___. _.___...______.. _. , YL.a _____ .... ..._ _... ..... ..._ ....... ......... pm.wu t m. rab a.r ana acme I.4;.° In. <:...flea °r Im m<erelnr rmwm<nt wrm<11 mr jmue iLe.emeGl vhma or leaf tan -------- aq or _______________________________ __________ la...... el><.mmmlun<.vxo1:..........---------------- ....----------------------------------------- n°nrr eeeu< MORTH CAROLINA, .. Buncomhe r x 1 th. ce .e Ma dales Burleson \ ^ easu.. anfr . sun .rorova, s<rm- twt Q.... .... nrr<am. W.I.:n. Ink a.r .so .can.nl<at.a wa 5 hca .Gilt. Clef k........XSpKdtil]K r City Of ASheyiile--_-- ---- _--� n.rin c..mm.<ov.,IF'Pal ..on, a,.:.m.rnral .•"% m : x _ _—' ..... At cm, .r tn. <......t , m< eoos.lna m nm<nl na. usn<d 1. 1n n.m. er R. Mayo[ . ar a-w..un u. <wv... I. .... ..a .alone -hen---- Zn _City-CleCk__. _ XwxaetX. fj•% r^ ) c''�� ;��- NIN n a.na orncW .tame er ...1, inn 1S�..a.r s... i(LdC�(...... . n.%�P.... /..________ n.nry raeu. rn. 1.1.10 1 c.1u1kaw4) ef------------ _k---------- .- ---- --------- -------------------------- .................... ._____ eo- ee. mad 1 ` n1. In n...., U. tau nln.n .r< ael> r<[I, t<r.e .e W neon e at. ana nme ... la tM —1 v." .Town an tha n..<wn err<.n ar ............./_J,��� --- __-neeteTen we aeons r0 .a- -------.encwzl a/kra..+'� .__.____.....n<luwtAaal.um. nal.nr ar o1m. or ....___ __________________ _ Book: 1901 Page:649 Seq:4 Printed by ComerS.orlc Prinnn, ins ®gin. NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WETLAND SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all the required information. Project name Contact name Phone number Date Drainage area number Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations 1-yr, 24-hr rainfall depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff PrelPost 1-yr, 24-hr peak control Storage Volume: NonSA Waters Minimum required volume Volume provided (temporary pool volume) Storage Volume: SA Waters Parameters 1.5' runoff volume Pre -development 1-yr, 24-hr runoff volume Post -development 1-yr, 24-hr runoff volume Minimum volume required Volume provided Outlet Design ,WNC 2016 130,680,000' 117,612.00 ft' 90.0% % 1.00inch 2.95 in 0.12 inlllr 1.40 ft'/seC 7.40 fftec 6.00 fN/sec 9,365.00 fit — RABBIT PATCH PARKING 21,140.00 WOK eft' fI3 fN to i fo Depth of temporary poogponding depth (D.J 12.00 in Orawdown time 2.00days I Diameter of orifice i i 1.50In Coefficient of discharge (C,) used in orifice diameter calculationi 0.60'(unidess) Driving head (H) used in the orifice diameter calculation j 1.001 OK OK OK SEAL: OK O20F W ATFgOG � y o N t,HKO��piG pF ESS/p•.,ti9�i�� G rn: No. 39870 7411f filll111\ �/ ZVC, (o Forth SW401-Wetland-Rev.6-11/16/09 Parts I and It. Pmlec1 Design Summary, Page 1 of 3 Surface Areas of Wetland Zones Surface Area of Entire Welland Shallow Land The shallow land percentage is: Shallow Water The shallow water percentage is: Deep Pool Forebay portion of deep pool (pretreatment) The forebay surface area percentage is: Non-forebay portion of deep pool The non-forebay deep pool surface area percentage is: Total of wetland zone areas Add or subtract the following area from the zones Topographic Zone Elevations Temporary Pool Elevation (TPE) Shallow Land (top) Permanent Pool Elevation (PPE) Shallow Water/Deep Pool (top) Shallow Water bottom Most shallow point of deep pool's bottom Deepest point of deep pool's bottom Design must meet one of the following two options: This design meets Option #1, Top of PPE is within 6" of SHWT, If yes: SHWT (Seasonally High Water Table) This design meets Option 92, Wetland has liner with permeability < 0.01 in/hr, If yes: Depth of topsoil above impermeable liner Topographic Zone Depths Temporary Pool Shallow Land Permanent Pool Shallow Water Deep Pool (shallowest) Deep Pool (deepest) Planting Plan Are cattails included in the planting plan? Number of Plants recommended in Shallow Water Area: Herbaceous (4'cubic-inch container) Number of Plants recommended in Shallow Land Area: Herbaceous (4•cubic-inch container), OR Shrubs (1 gallon or larger), OR Trees (3 gallon or larger) and Herbaceous (4+ cubic -inch) Number of Plants provided in Shallow Water Area: Herbaceous (4' cubic -inch container) Number of Plants Provided in Shallow Land Area: Herbaceous (4-cubic-inch container) Shrubs (1 gallon or larger) Trees (3 gallon or larger) and Grass -like Herbaceous (4+ cubic -inch) 22,790.0011' OK 8,949.00fR OK 39%% 8,664.00112 OK 38%% 2,565.00ftr OK 11%% 2,612.O0ft' OK 11%% 22,790.00ft' OK 0.00 ft, 2,061.50ft amsl 2,060.50ft amsl 2,060.00 ft amsl 2,058.50 It amsl 2,058.00 It amsl Y (YorN) 2,061.00 ft amsl OK N (Y or N) 4.00 in OK 12.00in OK 6.00 in OK 24.00 in OK 30.00 in OK N (Y or N) OK 2,200 2,250 360 45 and 1,800 2,200 OK 2,250 OK 360 OK 45 OK 100 More recommended if planting trees. Form SW401-Wetland-Rev.6-11/16/09 Parts I and 11. Project Design Summary, Page 2 of 3 Additional Information Can the design volume be contained? Y (Y or N) OK Does project drain to SA waters? If yes, N (Y or N) Excess volume must pass through filter. What is the length of the vegetated filter? It Are calculations for supporting the design volume provided in the Y (Y or N) OK application? Is BMP sized to handle all runoff from ultimate build -out? Y (Y or N) OK Is the BMP located in a recorded drainage easement with a Y (Y or N) OK recorded access easement to a public Right of Way (ROW)? The length to width ratio is: 5.50:1 OK Approximate wetland length 440.00 ft Approximate wetland width 80.00 ft Approximate surface area using length and width provided 35,200.00ft2 This approx. surface area is within this number of square feet of the entire wetland surface area reported above: Will the wetland be stabilized within 14 days of construction? Y (Y or N) OK Form SM01 Metland- Rev. 6-11116/09 Parts I and 11. Project Design Summary, Page 3 of 3