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HomeMy WebLinkAboutSW8110706_OTHER_20110715 (3)Stormwater Management Plan for The Sneads Ferry Inn Owner: The Sneads Ferry Inn, LLC 1510-A South Third Street Wilmington, NC 28401 Engineer: Stroud Engineering, P.A. 102 D Cinema Drive Wilmington, NC 28403 \�` %1111111/// \�o�c s0 'ss o�'y' ?ao SEAL y9r9 . 35677 G I .... David L. Menius, P.E. "7//S/q--a /If Date JUL 1 9 2011 Project Narrative The Sneads Ferry Inn 7/13/2011 Protect Summa The Sneads Ferry Inn, LLC is proposing to construct a 23 unit hotel on approximately 1 acre of land on NC 210 just south of its intersection with NCSR 1518. Proposed access to the hotel will be directly onto NC 210 by a single driveway. The proposed driveway location has been shifted 60' south from the existing driveway location to minimize the width of the gore striping in the center turn lane. The site will be afforded public water via a tap on the adjacent ONWASA main. Additional taps will be made to facilitate a new hydrant and a fire suppression system. Sewer service will be provided by an onsite grinder station pumping to a Pluris force main in the opposite shoulder. Site Description The topography of the site area is generally flat, with slopes ranging from 0 - 5% in most areas. An unnamed tributary to Mill Creek is located to the east of the property. The site was recently occupied by another commercial use, which has now been demolished. A driveway, gazebo, and concrete slabs remain onsite. These items are to be removed prior to construction of the hotel. The site is cleared of most woody vegetation. Adjoining property is to the south and west is primarily undeveloped woodland. The intersection of NC 210 and Old Folkstone Road lies 500' north of the site and feature a number of commercial uses. Properties to the east are a mix of undeveloped parcels and residential. Soils Soils in the project area are mapped in the National Cooperative Soil Survey as primarily Baymeade Fine Sand, which is characterized as a well drained soil with rapid infiltration, moderately rapid permeability, and slow surface runoff. The northern corner of the site is mapped as Onslow loamy fine sand. Planned Erosion and Sedimentation Control Practices The proposed stormwater pond will be used as a sediment basin during construction. Silt fencing will be used around the perimeter of the site to help divert runoff towards the pond and establish the limits of disturbance. Silt fence will also be used around flared end pipe sections. Stone and hardware cloth type inlet protection will be utilized at the drop inlet and outlet structure. A temporary gravel construction entrance will be located at the proposed driveway. Planned Stormwater Management Practices A high density stormwater permit will be sought as the site will have a built upon area of 65%. The site drains to an unnamed tributary of Mill Creek (SA; HOW), which is in excess of Yz miles away. All runoff from impervious surfaces is directed to the pond by way of a parking lot with an inverted crown section. A single drop inlet is located in the northern corner of the parking lot to convey runoff to the wet detention pond's forebay. The curbing in the vicinity of the drop inlet is depressed to allow emergency drainage to the forebay should the inlet become clogged with debris. The pond is sized to provide 90% TSS removal for a 1.5" storm. The pond utilizes a baffle wall to force a flow path length to width ratio in excess of 3:1. The pond outfall connects to an existing pipe in the southeast corner of the property which outfalls at the property line. An existing corrugated metal driveway culvert in NC 210 will be removed and replaced by a concrete pipe of the same length and diameter 60 feet to the south to facilitate the new driveway location. JUL 1 9 20111, ��. Name of Stream Description Curr. Class Date Basin Stream Index # Intracoastal From northeastern SA;ORW 01/01/90 White Oak 19-39-(0.5) Waterway boundary of Cape Fear River Basin to Daybeacon #17 including all unnamed bays, guts, and channels Intracoastal From Daybeacon #17 to SA;HQW 06/01/56 White Oak 19-39-(3.5) Waterway New River including all unnamed bays, guts, and channels Rogers Bay Entire Bay SA;HQW 06/01/56 White Oak 19-39-1 Goose Bay Entire Bay SA;ORW 01/01/90 White Oak 19-39-2 Alligator Bay Entire Bay SA;ORW 01/01/90 White Oak 19-39-3 .� Mill Creek From source to SA;HQW 06/01/56 White Oak 19-39-3-1 Alligator Bay Chadwick Bay Entire Bay SA;HQW 06/01/56 White Oak 19-39-4 Fullard Creek From source to SA;HQW 06/01/56 White Oak 19-39-4-1 (Salt Branch) Chadwick Bay Biglins Creek From source to Fullard SA;HQW 06/01/56 White Oak 19-39-4-1-1 Creek Charles Creek From source to Fullard SA;HQW 06/01/56 White Oak 19-39-4-1-2 Creek Bumps Creek From source to Fullard SA;HQW 06/01/56 White Oak 19-39-4-1-3 Creek Hell Gate Creek From source to SA;HQW 06/01/56 White Oak 19-39-5 Intracoastal Waterway Cowhorn Swamp From source to New C;NSW 08/01/91 White Oak 19-4 River Juniper Swamp From source to Cowhorn C;NSW 08/01/91 White Oak 19-4-1 Swamp Bear Prong From source to Cowhorn C;NSW 08/01/91 White Oak 19-4-2 Swamp Margaret Branch From source to Cowhorn C;NSW 08/01/91 White Oak 19-4-3 Swamp Jenkins Swamp From source to Cowhorn C;NSW 08/01/91 white Oak 19-4-4 Swamp Wards Channel From Intracoastal SA;HQW 06/01/56 White Oak 19-40 Waterway to New River Intracoastal From New River to SA;HQW 06/01/56 White Oak 19-41-(0.5) Waterway northeast mouth of Goose Creek Intracoastal From the northeast SA;GRW 01/01/90 White Oak 19-41-(14.5) Waterway mouth of Goose Creek to the southwest mouth of Queen Creek Intracoastal From the southwest SA;HQW 06/01/56 White Oak 19-41-(15.5) Waterway mouth of Queen Creek to Whiteoak River Howard Bay Entire Bay SA;HQW 06/01/56 White Oak 19-41-1 Bear Creek From Shacklefoot SA;HQW 06/01/56 White Oak 19-41-10 Channel to Intracoastal Waterway I Page 6 of I1 JUL 1 9 I1.`r.- 2011 2011-07-09 07:12:16 NCDENR Stormwater Design Calculations Wet Pond Project: The Snoods Ferry Inn Jobs: PW 926 Engineer: DLM Date: 7/14/2011 Rational Method (See accompanying figures and tables as noted) Predevelopment Land Use !Description C Area ac Total area 0.98 Impervious 0.96 0.11 Pervious 1 0.2 1 0,85 Weighted C: 029 Time of Concentration: 10 min 1 year Intensity: 4.75 inthr 10 year Intensity: 7.35 inthr Impervious (ex) 11.5% 1 year Peek Flow: 1.30 cts 10 year Peek Flow: 2.01 cis Postdevelopment Land Use Descrl lion C Area ac Total area 0.98 Im ervious 0,95 0.62 Pervious 0.2 0,33 Weighted C: 0.69 Time of Concentration: 10.00 min 1 year Intensity: 4.75 Inge 10 year Intensity: 7.35 inlhr Impervious(prop) 65.0% 1 year Peek Flow: 3.12 cis 10 year Peak Flow: 4.83 cis Curve Number Drainage Area (ac): Net Impervious Area (sc). % Impervious: Curve Number (CNf' Predevelo ment Postrievelo menl 0.96 0.96 0.11 0.62 11.54 64.99 49 74 0' CAR p��iii/. •a SEAL — 35677 i Q' FNGIN��•�J' /�iq�iD L. • • � ls) �►1 drainage area Input total area sidewalks I perking buildings other total ex BUA drainage area Input total area sidewalks perking buildings other reserve total prop BUA 'where CN„• (open land, fair condition) Is defined In TR-55 table 2-2a and CN. Is a weighted average 41624 st 0 sl 4592 at 138 sf 75 sf 4605 at 41624 at 2773 of 16619 of 6208 at 0 at 1450 sf 27050 at JUL 1 9 2011 Runoff !Frequency oar 1 70 Rainfall, P 24 hour' 3.70 W95 Pro-Runoff.O ln" 0.22 1.55 Post-Runoff,0 In" 1.39 4.02 "Rainfall data Per NOAA Atlas 14 -where 0=((P- 0.2S)2) I(P+ 0.8S) and S=(10001 CN)-10 Required NCDENR storage Is greater of. 1.5" OR difference bAv pre and post runoff from 1 yr, 24 fir storm DENR 1 yr 24 hr Pre/Post Method Pre R,=0,05+ 0.9' Impervious Ratio Rv- 0.154 Post R,= 0.05+ 0.9' Impervious Ratio Rv- 0.835 Control Volume • 3630' Re' R,' A where Rd - 3.7 Predevelopment runoff 1975 cf Posldevelopmenl runoff- 8148 cf Water Quality Required Storage- 8177 of NOT APPLICABLE. SITE IS>0.5 MILES TO SA Schuler's Simple Method R,-0.05+0.9-Impervious Redo Rv- 0.635 Control Volume• 3630-Rd-R,-A where Rd- 1.5 in. Water Quality Required Storage- J303 of CONTROLS USE: J303 CF FOR POND DESIGN Time to Peak (for storm routing) 1 Year Slonn= 19 min 10 Veer Storm= 35 min Tp- (43.5' area - runt) / posti ev 0 State Required Surface Area Calculation Desired TSS Removal Capacity- 90% Depth Below Perm. Pool Depth- 2.99 It Impervious Cover- 65.0% SAIDA- 7.55 Required Surface Area= 3143 sf Note: Based on SA-SA/DA Area'4355N100 JUL 1 9 2011 Y. Basin Dimensions EI, SA Forebay Inc. Vol. Forebay Total Forebay SA Pond Inc. Vol, Pond Total Vol Pond 20.5 0 0 0 0 0 0 21,5 0 0 0 0 0 0 22.5 0 0 0 1 0 0 23.5 0 0 0 66 34 34 24.5 0 0 0 243 155 188 25.51 11 0 0 49B 371 559 28.5 93 52 52 827 663 1221 27.5 256 175 227 1230 7029 2250 28.51 5021 3791 6061 17091 14701 3719 291 6581 2901 8961 26781 10971 4816 Total Volume- %Forebay- Sediment removal elev- Permenent Pool SA - Average Depth- peropflon 2 e n,........... 0.,.1 El ciftst ft Is +t. 20%, OK Is > required SA, OK is > 3,0', OK EL. Stage ISA I Inc. Vol. Pond ITotal Vol. Pond 29 01 33361 01 0 29.5 0.5 4828 20411 2041 30 1 5316 25361 4577 30.5 1.51 2816 2033 6610 31 21 63361 22881 8898 Slate Stage- Slate EI.= Top El.- Freobo ird- I 1.00 ft ft ftIs > 1.0', OK 30.00 31.00 1.00 2.5 Day Drawdown far State Volume Max (2 Day) Flow- 0.02 cis Min (5 Day) Flow- 0.01 cis Slot Stage- 1,00 ft Avg Head- 0.33 ft 2 Day Area- 0.007 at 5 Day Area• 0 003 sl 2 Day Diamele, 1,124 In 5 Day Dlameter- 0.711 In Provide O Ince- in Drawdown Flow- cis Is< Predevelopment discharge, OK Drewdovm Time- days Is wlddn 2.5 days, OK JUL 1 9 2011 Precipitation Frequency Data Server Page 1 of 4 NOAA Atlas 14, Volume Version 3 '.. Location name: Sneads Ferry,, North Carolina, �y US' Coordinates: 34.6213,-77.4347 Elevation: 321t' '4_,,..03 source: Google Maps POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonin, D. Martin, B. Lin, T. Parsybok, M.Yekta, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF_tabular I PF_graphical I Maps_& aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence Intervals (in inches)1 Average recurrence Interval( ears Dumtbn 50 100 200 500 1000 0.498 0.587 0.686 0.768 0.866 0.947 1.02 7.09 7.19 7.27 6-min (0461-0.538) (0.546-0633) (0.635-0.739) (0.708-0.825) (0.796-0.931) (0.862-1.01) I (0.928-1.10) (0.992-1.18) (1.07-1.29) (1.13-1.38) 0.791 0.939 1.10 1.23 1.18 7.60 1.62 7.74 1.89 2.07 10•Mn (0.736-0.858) (0.873-1.01) 1 (1.02-1.18) 1 (1.13-1.32) 1 (1.27-1.48) (1.37-1.01) (1.48-1.74) (1.57-1.87) (1.69-2.04) (1.78-2.18) o.889 1.18 7.39 1.55 1.76 1.90 2.05 2.18 2.37 2.52 15•min (0.920-1.07) (1.10-1.27) (1,29-1,50) (1,43-1.67) ( 1.61-1.811) ( .74-2.04 1 )1 (1.88-2.20) (1.99-2.36) (2.13-2.57) (2.24-2.73) 1.36 71.63 F7.97 F 2.26 F 2.59 F286 3.13 3.47 3.70 4,08 30•min (1.26-1.47) 1 (1.52-1.78) 1 (1.83-2.13) 1 (2.00-2.42) 1 (2.38-2.79) (2.62-3.08) (2.86-3.37) (3.09-3.68) (3.39-4.09) (3.63-4.42) 1,88 2.05 2.53 2.82 3.45 3.87 4.32 4.78 5.42 5.95 80•min 1 ( ,57-1,83) (1,90-2.21) (2,34-2.73) (2.70-3.15) (3.17-3.71) (3.55-4.17) (3.93-4.65) (4.33-5.16) (4.86-5.87) (5.29-8.46) 2.07 2.52 3.20 3.77 4.58 6.24 6.98 8.73 7.83 8.76 2•hr (1.93-2.23) 1 (2.35-2.72) (2.97-3.45) 1 (3.49-4.06) 1 (4.20-4.92) (4.79-563) (5.40-6.47) (6.08-7.24) (6.98-8.44) (7.75-9.47) 2.24 2.73 3.48 4.1J 6.08 5.87 6.75 7.71 9.13 70.4 . 3-hr (2.08-2.42) (2.54-2.95) (3.23-3.75) (3.81-4.45) (4.65-5.44) (5.34-6.31) (B.10-7.24) (8.90-8.29) ( 8.07-9.83)( 9.05-11.2 ) 2.7J 3.32 4.258.22 7.23 8.34 9.58 11.4 12.8 6 hr (2,53-2.98) (3.07-362) (3.91-4.63) (4.64-5.50) (587-6.74) (8.53-7.83) (7.47-9.02) (8.48-1G.4) ( 9.95-12.3) ( 11.2-14.1) J.22 3.92 5.04 8.03 7. 77 8.73 10.1 71.7 14.0 16.7 12-hr (2.95-3.55) 1 (3.58-4.31) 1 (4.60-5.53) (5.47-661) (0,73-8.17) (7.81-9,53) (8.99-11.0) (10.3-12.7) (12.2-15.3) (13.7-17.6) / 1.70 4.50 5.82 8.95 8.81 10.1 11.7 13.6 16.3 18.7 24-hr I (3.40-4.06)' 1 (4.13-4.95) (5,34-6.38) (6.34-760) (7,81-9.43) (0.06-11.0) (10.4-12.8) (11.9-14.8) (14.0-17.8) (15.B-20.6) 430 F 6.21 F 6.69 F 7.98 F 9.89 F17.6 13.4 15.6 78.8 21.5 2-day (3.92-4.76) 1 (4.74-5.77) 1 (6.06-7.40) 1 (7.18-8.80) 1 (8.85-10.9) (10.3-12.8) (11.8-14.9) (13.5-17.3) (15.9-20.9) (18.0-24.1) 4.64 6.49 7.01 8.30 10.2 11.9 13.7 15.7 18.9 21.8 3•dey (4.13-502) 1 (5.00-6.07) 1 (6.36-7.75) 1 (7.50-9.16) 1 (9.17-11.3) (W.B-13.7) (12.1-15A) (13.7-17.4) (18.2-21.0) (18.2-24.2) 4.78 F 5.78 F 7.34 8.64 10.6 7F 2.2 14.0 F 5.9 19.0 F21.7 4•day (4.35 5.27) 1 (5.26-Ufl) 1 (6,67-8.09) 1 (7.82-9.53) 1 (9.49-11.6) (10.9-13A) (12.4-15.3) (13s-17.5) (16.4-21.0) (18.4-24.2) 5.50F 6.63 8.34 9.75 F11.8 7F13.5 5 3__jF17.3 20.2 22.6 7-day (505-6,03) 1 (6.09-7.26) 1 (7.64-9.12) 1 (8.89-10.6) 1 (10.7-12.8) (12.2-14.7) (13.7-16.7) (15.3-18.9) (17.6-22.2) (19.4-25.0) B.OB 7.29 9.04 10.5 12.8 14.J 78.1 18.1 21.0 23.3 10-day (5.59-6.67) (6.70-7.99) (B.29-9.89) 1 (9.57-11.5) 1 (11.4-13.7) (12.9-15.8) (14.5-17.8) (16.1-19.8) (18.4-23.1) (20.2-25.8) 7.99 9.51 71.6 13.3 15.7 17.6 19.7 21.9 F 25.0 F275 20tlay (7.41-8.65) (8.82-10.3) (10.7-12.5) 1 (12.2-14.3) 1 (14.4-16.9) (18.1-19.0) (17.9-21.3) (19.7-23.8) (22.1-27.3) (24.0-30.2) 9.81 17.7 14.0 75.9 18.6 20.6 22.7 24.9 27.9 30.3 30-day (9.17-10.5) (10.9-12.5) (13.1-15.0) (14.8-17.1) (17.2-19.9) (19.0-22.11 (20.9-24.5) (22.7-26.9) (25.2-30.3) (27.1-33.0) 12.4 14.8 77.4 t9.7 23.0 25.8 28.3 31.1 34.9 38.0 48•tlay (17 5-13.4) 1 (13.6-15.8) 1 (18.2-18.9) 1 (18.3-21.4) 1 (21.2-24.9) (23.5-27.8) (25.8-30.7) (28.1-33.8) (31.2-38.2) (33.6-41.7) 15.0 '17.7 20.8 23.3 26.8 29.4 - 32.1 34.9 38.8 41.4 80-tley (28.7-34.5) (32.0-37.5) (35.1-41.7) (37.4-45.0) frequency (PF) estimates In this table are based on frequency analysis of partial duration series (PDS). parenthesis ere PF estimates al lower and upper bounds of the 90% conetlance Interval. The probability that precipitation frequency estimates Eon duration antl average rewmance Interval) will be greater than the upper bound (or lees than the lower bound) is 5%. Etimates at not checked against probable maximum precipitation (PMP) estimates antl may be higherthan currently valid PMPr to NOAA Atlas 14 document for more Information. Back to Top PF graphical http://Iidse.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lal.=34 JUL 1 9 2011 5213 &ton=-77.4347&data=... 6/3/2011 Precipitation Frequency Data Server Page 1 of 4 G) NOAA Atlas 14, Volume 2, Version 3 Location name: Sneads Ferry, North Carolina,p US• 15 Coordinates: 34.5213,-77.4347 Elevation: 32ft• • source: Googly Maps POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonin, D. Mamn, B. Lin, T. Perzybak, M.Yekte, slid D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF_tabular I PFyraphical l Maps & aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence Intervals (in inches/hour)l Average rscurmnce Interval ears Dumtlon 1 ,1 �© 10 i 26 60 100 2- 500 1000 6.94 7.04 8.23 8.18 10.4 11.J t2.2 73.1 14.3 75.3 5-min (5.53-6.43) 1 (6.55-7.60) 1 (7.62-8.87) 1 (8.50-9.90) 1 (9.55-11.2) 1 (10.3-12.2) 1 (11.1-13.2) 1 (11.9-14.2) 1 (12.8-15.5) 1 (13.6-18.6) �4.75 5.63 6.59 7.36 T 8.28 8.89 9.71 10.4 11.3 72.0 10-mIn , (4,12-5.14) 1 (5.24-8.08) 1 (0.10-7,10) 1 (6.80-7.01)- 1 (7.61-8.90) 1 (8.24-9.68) 1 (8.85-10.5) 1 (9.44-11.2) (10.2-12.3) (10.7-13.1) 3.98 4.72 5.58 6.20 7.00 7.59 8.18 8.76 9.50 10.7 16-min (3.88-4.28) (4.39-5.09) (5.15-5.99) (5.73-6.68) (6,43-7,52) (6.86-8.17) (7.46-8.81) (7,94-9.44) (8.52-10.3) (8.96-10.9) 2'-7 3.28 3.95 4.48 5 8 5.72 6.27 6.81 7.56 8.75 30•min (2,52-2.93) 1 (3.03-3.52) 1 (3.66-4.25) 1 (4,15-4,84) 1 (4.76-5.57) 1 (5.24-8.15) 1 (5.71-6.75) (6.18-7.35) 1 (6.70-8.18) 1 (7.25-B.B5) 1,69 2.05 2.53 2.92 3.45 3.87 4.32 4.78 5.42 5.95 60-min (1.57-1.83) 1 (1,90-2,21) 1 (2.34-2.73) 1 (2.70-3.15) (3,17-3,71) 1 (3.55-4.17) 1 (3.93-4.65) (4.33-5.16) (4.86-5.87) 1 (5.29-8.40) 1.04 1.28 1.60 1.89 2.29 2.62 2.98 3.37 3.92 4.38 2 hr (0.964-1.11) 1 (1.17-1.36) 1 (1.48-1.73) 1 (1.74-2.03) (2.10-2.46) 1 (2.40-2.82) (2.70-3.20) (3.03-3.62) (3.49-4.22) 1 (3,87-4.74) 0.748 0.908 7.76 1.37 1. 99 1.98 2.25 2.67 3.04 3.45 �3-hr (0.694-0,805) (0,845-0.981) (1.08-1.25) 1 (1.27-1.48) 1 (1,55-1,81) 1 (1,78-2.10) (2.03-2.41) (2,30-2.76) 0.458 0.555 0.770 0.8" 1.04 1.21 1.39 7.60 7.90 2.18 8•hr (0.422-0.497) (0.513-0.605) (0.653-0,773) (0,775-0,916) (0.947-1.13) 1 (1.09-1.31) (1.25-1.51) 1 (1.42-1.73) 1 (1.68-2.06) 1 (1.87-2.35) 0.328 0.419 0.500 0.620 0.728 0.841 0.971 7.17 1.14 �0.288 1T-hr (9.245-0.295) (0.297-0.358) (0.3B1-0.459) (0.454-0.549) (0.558-0.678) (0.648-0.7B1) (0.746-0.917) (0.852-1.06) 1 (1.01-1.27) 1 (1.14-1.46) 0.154 0-8 0.242 0.290 0.360 0.421 0.489 0.565 0.679 0.778 24-hr (0.141-0.169) (0.172-0.206) (0.222-0.266) (0.264-0.317) (0.325-0.383) (0.377-0.409) (0.434-0.533) (0.495-0.616) (0.584-0.744) (0.659-0.857) 0.090 0.1a8 0.138 0.168 0.208 0.247 0.280 0.324 0.381 0.448 �2•de (0.082-0.099) (0.099-0.120) (0.126-0.154) (0,150-0.183) (0.184-0.228) (0.214-0,207) (0.247-0.310) (0.281-0,380) (0.332-0.436) (0.375-0.503) 0.063 0.078 0.097 0.115 0.742 0.186 0.190 0.278 0.262 0.300 (0.057-0.070) (0.069-0.084) (0.0BB-0.108) (0.104-0.127) (0.127-0.156) (0.147-0.102) (0.168-0.210) (0.190-0.242) (0.224-0.291) (0.253-0.336) o3•day 0.050 0.060 0.076 0.090 0.110 0.127 0.145 0.165 0.198 0.226 4 y (0.045-0.055) (0.055-0,080) (0.069-0.084) (0.081-0.099) (0.099-0.121) (0.113-0.139) (0.129-0.160) (0.145-0.182) (0.170-0.219) (0.192-0.252) 0.033 0.039 0.050 0.050 0.070 0.080 0.091 0.103 0.720 0.134 7•dey (0.030-0.036) (0.036-0.043) (0.045-0.054) (0.053-0.063) (0.084-0.076) (0.072-O.OB8) (0.082-0.100) (0,091-0.113) (0.105-0.1321 (0.116-0.149) 0.028 0.030 0.038 0.044 0.052 0.080 0.087 0.075 0.087 0.097 10-day (0.023-002B) (0.028-0.033) (0.035-0,041) (0.040-0.048) (0.048-0.057) (0.054-0,005) (0.060-0.073) (0.067-0.083) (0.077-0.098) (0.084-0.108) 0.017 0.020 0.024 0.028 0.033 0.037 0.041 0.046 0.052 0.057 �20-d0y (0.015-0.018) (0.018-0.021) (0.022-0.028) (0.025-0.030) (0.030-0.035) (0.034-0.040) (0.037-0.044) (0.041-0.050) (0.046-0.057) (0.050-0.063) 0.014 0.018 0.019 0.022 0.028 0.028 0. 332 0.035 0.039 0.042 �30•day (0.013-0.015) (0.015-0.017) (0.01B-0.021) (0.021-0.024) (0.024-0,028) (0.026-0.031) (0.029-0.034) (0.032-0.037) (0.035-0.042) (0.038-0.046) 0.014 0.018 0.016 0.021 0.024 0.026 0.029 0.032 0.035 �0.011 I6-0a (0.011-0.012) (0.013-0.015) (0.015-0.01B) (0.017-0.020) (0.020-0.023) (0.022-0.026) (0.024-0.028) (0.026-0.031) (0.029-0.035) (0.031-0.039) 0.010 0.012 0.014 0.018 0019 0.020 0.022 0.024 0.027 0.029 80-day (0.010-0.011) (0.012-0.013) (0.074-0016) (0.015-0.017) (0.017-0.020) (0.019-0.022) (0.021-0.02Q (0.022-0.026) (0.024-0.029) (0.028-0.031) h"onfrequency (PF) estimates In this table are based on frequency analysis of paNal dumtlon series (PDS). inparenthesis are PF estimates al lower antl upper bounds of the 90%confidence interval, The probability that precipitation frequency estimates (for a ration and average recurrence Interval) will be greater then the upper bound (or less than the lower bound) le 5%. Estimates a1 upper bounds are not E!&.cked against probable maximum precipitation (PMP) estimates antl may be higher than currently valid PMP values. efer to NOAA Atlas 14 document for more Information. Back f0 Top PF graphical JUL 1 9 2011 http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_ printpage.html?lat=34.5213&lon=-77.4347&data=... 6/3/2011 . ECS CAROLINAS, LLP "Setting the standard for Service" . Geotechnical • Construction Materials • Environmental • Facilities NC RegIsbred Englneedng Firm F-1078 Mr. Mark Maynard 110 Skystasail Drive Wilmington, North Carolina 28409 Reference: Report of Infiltration Testing Sneads Ferry Inn Sneads Ferry, Onslow, County, North Carolina ECS Project No. 22.16843 Dear Mr. Maynard: ECS Carolinas, LLP (ECS) recently stormwater best management practice Sneads Ferry, Onslow County, North report of our testing. Field Testing June 14, 2011 conducted infiltration testing for the proposed (BMP) areas at The Sneads Ferry Inn site in Carolina. This letter, with attachments, is the On June 14, 2011, ECS met with Mr. Luke Menius with Stroud Engineering in order to locate the requested boring locations. ECS then conducted an exploration of the subsurface soil and groundwater conditions at two requested locations shown on the attached Boring Location Plan (Figure 1). The purpose of this exploration was to obtain subsurface information of the in -place soils for the proposed stormwater BMP areas. ECS explored the subsurface so41 and groundwater conditions by advancing one hand auger boring into the existing ground surface at' the requested boring locations. ECS visually classified the subsurface soils and obtained representative samples of each soil type encountered. ECS also recorded the seasonal high water table (SHWT) observed at the, time of the hand auger borings. The attached Infiltration Testing Form provides a summary of the subsurface conditions encountered at the hand auger boring locations. The SHWT was estimated at the boring locations below the existing grade elevation. A summary of the findings are as follows: Location SHWT _ 1 14 inches 2 24 Inches ECS has conducted two infiltration tests utilizing a compact constant head permeameter near the hand auger borings to estimate the infiltration rate for the subsurface soils. Infiltration tests are typically conducted at two feet above the SHWT. If the SHWT is less than three feet, the tests are conducted at ten inches below the surface elevation. F- _ JUL 1 9 2011 7211 Ogden Business Park, Suite 201, Wilmington, NC 28411 • T. 910-686-9114 • F: 910-686-9666 • www.ecslimited.com ECS Capitol Services, PLLC • ECS Carolinas, LLP • ECS Florida, LLC - ECS Midwest LLC • ECS Mid -Atlantic, LLC - ECS Southeast, LLC - ECS Texas, LLP Report of Infiltration Testing Sneads Ferry Inn Sneads Ferry, Onslow County, North Carolina ECS Project No. 22.16943 June 14, 2011 Field Test Results Below is a summary of the infiltration test results: Location Description. Depth Inches/ ''hour.. 1 Gray sil SAND 10 inches 1 1.3 2 Tan silty SAND 10 inches 1.2 Infiltration rates and SHWT may vary within the proposed site due to changes in elevation and subsurface conditions. Closure The activities and evaluative approaches used in this assessment are consistent with those normally employed in assessments of this type. ECS's testing of site conditions has been based on our understanding of the project information and the data obtained during our Feld activities. ECS appreciates the opportunity to provide our services have any questions concerning this report or this project, 9114. Respectfully, ECS CAROLINAS, LLP K. Brooks Wall Project Manager CC: Luke Menius — Stroud Engineering Attachments: Figure 1 - Boring Location Plan Infiltration Testing Form to you on this project. If you please contact us at (910) 686- VV` Walid M. Sobh P.E. Principal Engineer JUL 1 9 2011 Sneads Ferry Inn Sneads Ferry, NC ECS Project # 22.16843 June 13, 2011 KBW I 2 - - --N.CHIGHWAY210 -------------------- APPROXIMATE BORING LOCATIONS CAROLINAS JUL 1 9 2011 Figure 1— Boring Location Plan Provided by: Stroud Engineering Infiltration Testing Form Sneads Ferry Inn Site Sneads Ferry, Onslow County, North Carolina ECS Project No. 22.16843 June 13, 2011 Location Depth 1 0-2" 2"-12" 12"-36" Soil Description Pea GRAVEL Gray silty SAND Tan/orange SAND w clay Seasonal High Water Table was estimated to be at 14 inches below the existing grade elevation. Infiltration Rate: 1.3 inches per hour Test was conducted at 10 inches below existing grade elevation Location Depth Soil Description 2 0-24" Tan silty SAND Seasonal High Water Table was estimated to be at 24 inches below the existing grade elevation. Infiltration Rate: 1.2 inches per hour Test was conducted at 10 inches below existing grade elevation JUL 1 9 2011 LIMITED LIABILITY COMPANY ANNUAL REPORT NAME OF I.,IMITED I.IAI311..I'I'Y COMI'ANY: The Sneads Ferry bnt LLC SECRETARY OF STATE L.L.C. ID NUMBER: 1179844 NATURE OF BUSINESS: Hotel Owner✓Operator REGISTTRI3D ACIENr: Ilollis, Robert J. REGIS'I'I"RFD OFFICE MAILING ADDRIiSS: P.O. Box 1229 Wilmington, NC 28402 -1-0-9652968 Do not data enter manually. STATE OF INCORPORATION: NC REGISTFIZED OFFICE STREETADDRESS: 1510-A S. Front Street Wilmington, ArC 28401 New Hanover County 131ZINC IPAL OFFICE TELEPITONF NIJM13FR: 910-251-5030 PRINCII'AI.OFFICE MAILING ADDRESS: PRINCIPAL OFFICE S'I'REIi'I' ADDRESS MANAGERSMIE, MBERS/ORGANIZERS: Name: it .Maynard Title: Manager Address: P.O. Box 1229 Wilmington. NC 28402 P.O. Box 1229 Wilmington, NC 28402 1510 South Third Street Suite A Wilmington, NC 28401 CERTIFICATION OF ANNUAL REPORT MUST BE COMPLI7131) BY ALL LIMITI3D LIABILITY COMPANIES Mark Maynard 17ORNI MUST DE SIGNED 13Y A NIANAGER/MEMBER Mark Maynard 04/15/2011 DATE Manager TYPE OR PRINTNAME, TYPE OR PRINT TITLE ANNUAL REPORT FEE: S200 MAIL TO: Secretary of State • Cnrlwrations Divigion • Post Office Box 29525 • Raleigh, NC 27626-0525 JUL 1 9 2011 1 (Page '. of 21-- (y This instrument was ptepared by: GLGNN O'KEI'I H FISHER, AT-1 ORNF.Y AT LAW Delinquent taxes, if any, to be paid by the closing anomey to the Onslow County'fax Collector upon disbursement of closing oc s Glenn O'Keit F sher, Attorney at Law Doc to: Recorded: 02/22/201002 tT03 E2-19 PM Faa qnt: E922.00 papa 1 of a Revenue Tax: II900,00 Onalov Ca untV NC Rebecca L. Pollard Rap. of 0eada w3555 Pa63-64 . ,God presented to , s ur slow co Taax Moe clelk NORTI-1 CAROLINA GENERAL WARRANTY DEED Excise l ax: 8680,00 Tax Lot No: Parcel Identifier No: 767-9.5 Verified by County on the _ day of , 20_ by Mail after recording to: Mark Maynard 1510-A South Third Street Wilmington, NC 28401 This instrument was prepared by Glenn O'Keith Fisher Attorney at Law Brief Description for the index Tract 1, 0.956 Acres Stump Sound Township TIIIS DEED made February 15, 2011, by and between GRANTOR DA V ID L. ANTINORI and wife, FRANCIA T. ANTINORI and STEPHEN E. ANTINORI and wife, GENEVA B. ANTDNORI GRANTER THE SNEADS FF,RRV INN, LLC a North Carolina Limited Liability Company 1510-A South Third Street Wilmington, NC 28401 NO TITLE WORK REQUESTED OR PERFORMED The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors, and assigns, and shall include singular, plural, masculine, feminine or neuter as required by context. WIINESSETH, thin the Grantor, for a valuable consideration paid by the Grantee, the receipt of which is hereby acknowledged, has and by these presents does grant, bargain, sell and convey unto the Grantee in fee simple, all that certain lot or parcel of land situated in Slump Sound Township, Onslow County, North Carolina and more particularly described as follows: Being all of Tract I containing 0.956 acres as shown on a map entitled "MINOR SUBDIVISION FOR DAVID L. ANTINORI & WIFE FRANCIA T. ANTINORI, STEPHEN E. ANTINORI & WIFE GENEVA B. ANTINORI" prepared by Charles F. Riggs & Associates Inc., dated February 10, 2011 and recorded in Map Book 61, Page 143, Slide M 1937, Onslow County Registry. p((j7�Tat'/�`�, ' 1' ` Subject to any and all restrictions and easements of record. This is nut a conveyance of the Grantor's primary residence. T,, __-- JUL 1 9 2011 Book: 3555 Page: 63 Page I of t Book 3555. Pare 63. File Nvmbec (Page 2 of 2) 'I he property hereinabove described was acquired by Grantor by instrument recorded in Book 3052, Pagel. A map showing the above described property is recorded in Plat Book 61, Page 143 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 tide is marketable and free and clear of all encumbrances, and that Grantor will warrant and defend the title against the lawful claims of all persons whomsoever except for the exceptions hereinafter stated. Title to the property hereinabove described is subject to the following exceptions: AS LISTED ANTER DESCRIPTION IN WITNESS WHEREOF, the Grantor has hereunto set his hand and seal, or if corporate, has caused this instrument to be signed in its corporate name by its duly authorized officers and its seal to be hereunto affixed by authority of its Board of Directors, the day and year first above written. rr—GGrce"u— (SEAL) 7DAM ) L. ANTIN /lCLitCCa NCOGc (SEAL) FRANCIA T'. ANT d t• (SEAL) S"IT: I IENF. ANTINORI ,��.1•(ILU4. N. atidE,i.aU (SEAL) GENEVA R. ANTINORI No )4rN SEAI,STAMP STATE OF: 4 A r0//Z!B_, COUNTY OF: Of'} god x"JrtH nryryy x�Q,QN M. F/sI certify (hat the following person(s) personally appeared before me this day, each acknowledging to ,EP O T A q Y q% me that he or she voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated: DAVID L. ANTINORI and wife, FRANCIA T. ANTINORL, _ My Comm. Wines Individually Apt 28, 2014 'OZ pUBL\G 2Vj Date:_�I 18,11 LsAwrl. M 4kA,4—Notary Public ""Ow COUNt,e� My commission expires:y /.?el /q 'ryruun,Uo' SEAaJW&MP NORTII CAROLINA, ONSLOW COUNTY \pxzx .($ON Sri p .....,, p, ' 1 certify that the following erson s personally appeared before me this day, each acknowledging to Y g P O P Y PP Y B g O +` -4 \ % G me that he or she voluntarily signed the foregoing document far the purpose stated therein and in the .•' ti!Q p\jj = capacity indicated: STEPHEN E. ANTINORI and ANTINORI Z f Date: tYT�l�j �jjyif�e,�yG�E�N�E�VA �6. '{,Notary Public J0 �N9\-O My commission expires: / �r0 vxv��0\ The foregoing Cc of ftcate(s) of is/are certified to be correct.'fhis instrument and this certificate are duly registered at (he date and time and in the Book and Page shown on the first page hereof. By REGISTER OI' DEEDS FOR COUNTY Deputy/Assistant-Register of Deeds. IJUL 1 9 201, Book: 3555 Page: 63 Page 2 of 2 Book 3555. Pane 63. File Number SCALE 1:24 000 MINK Me ms IKI 0 IyQO m f0 IKO b10 1�00 RR