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HomeMy WebLinkAboutSW6240803_Stormwater Report_20240916 Sediment, Erosion Control, & Stormwater Calculations For HIES EASTOVER VP FRESH FOODS CUMBERLAND COUNTY, NC June 2024 011,111, SE. 4 f. ii�i /q�.�:C`, \S JOB NO. 21047 CLAYTON ENGINEERING & DESIGN HIES - EASTOVER SEDIMENT & EROSION CONTROL TABLE OF CONTENTS TAB 1 - Project Narrative - Sequence of Construction Activities - Maintenance Plan TAB 2 - Maps - Location Map USGS Topo Map Pre-Construction Erosion Control Drainage Area Map - Post Construction Drainage Map TAB 3 - Soils Information TAB 4 - Erosion Control Calculations Outlet Protection TAB 5 - Storm Drainage - Storm Drainage Calculations TAB 6 - Appendices - SHWT Report#1 - GEOTECH REPORT - Deed Restrictions Agreement - Deed - Application - O&M Agreement - Wetland Supplement Form - Supplement EZ Form Page 1 of 1 CLAYTON ENGINEERING & DESIGN HIES EASTOVER EROSION, SEDIMENTATION & STORMWATER Project Narrative Our client wishes to construct a new hotel in Eastover. Project will include one building with required parking and drives. Please see the attached plans. The total site is 6.55 acres and approximately 2.00 acres will be disturbed during construction. This is the second phase to a project that started in 2018. The c-store and DQ were completed in 2020. The majority of the site work, grading, and erosion control were completed for the entire site. Phase 2 is for the construction of the hotel building. This will include minor site work, installation of BMPs, and final paving etc. Post construction stormwater will be handled through a series of storm piping and a stormwater wetland. Soil erosion will be controlled with the use of perimeter silt fence, a skimmer basin, and a series of diversion swales. Approximately 2.00 acres of area will be disturbed during construction. Several temporary diversions will be utilized to direct flow into the skimmer basin. Silt fence inlet protection will be installed concurrently with the installation of the new storm drain piping. Calculations for temporary skimmer basin sizing are found in the following report. As stated before...the majority of the site work is complete and the site is currently stable. Erosion control measures were designed in accordance with NCDENR Erosion and Sediment Control Planning and Design Manual, 2006 edition. Site Info: Drainage Area: 187,582 sf Impervious Area: 174,894 sf Percent Impervious Area: 93.2% Wetland Storage Volume Surface Area: 12,000 sf Volume Required: 13,114 Volume Provided: 15,000 cuft \\10.0.1.250\WCE\WCE\Projects\2024\24059 - HIES Eastover Submittal Package\400 Analysis & Design\430 Civil\435 Design submissions\435.6 Applications\Narrative.doc Sequence Of Construction Activities 1. Determine and mark limits of disturbance. 2. Construct stabilized construction entrance. 3. Place perimeter sediment fence and stone outlets. 4. Construct temporary skimmer basins and temporary diversions. Place seeding immediately after constructing these structures. These structures shall be constructed prior to the disturbance of each contributing area. 5. Begin demolition of existing structures in accordance with the Demolition Plan. 6. Remove topsoil and stockpile for use on slopes and in berms. Stockpile area is designated on plans or as directed by engineer. 7. Construct storm drainage. Excavated drop inlet protection and outlet protection to be constructed concurrently with storm drains. Silt sacks are to be installed at each inlet upon placement of base course. 8. Place temporary seeding on all disturbed areas. 9. Complete final grading. 10. Place permanent seeding and do final landscaping. 11. Remove temporary erosion control measures after site is stabilized. 12. Estimated time before final stabilization is 3 months after completion of construction. Maintenance Plan 1. All erosion and sediment control practices will be checked for stability and proper operation following every runoff-producing rainfall, but at a minimum of once every week. Any needed repairs will be made immediately to maintain all erosion and sedimentation controls as designed. 2. Stabilization measures shall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased,but in no case more than 14 days after the construction activity in that portion of the site has temporarily or permanently ceased,unless activity in that portion of the site will resume within 21 days. 3. Silt/sediment fences will be repaired as necessary to maintain a barrier. Sediment will be removed from behind the fence when it becomes about 0.5 feet deep. Removed sediment shall be disposed of in a suitable area and stabilized to prevent erosion and sedimentation. 4. All seeded areas will be fertilized,reseeded as necessary, and mulched to maintain a vigorous, dense vegetative cover. 5. Additional control devices may be required during construction in order to control erosion and/or off site sedimentation. All temporary control devices shall be removed once construction is completed and the site is stabilized. 6. Where practicable, trenches should be filled, covered, and temporary seeding applied at the end of each day. 7. Contractor must take necessary action to minimize the tracking of mud onto the paved roadway from construction areas. The contractor shall daily remove mud/soil from pavement, as maybe required. Y / / 1?5 apiiiiiiiiiiiiiiiiiiiiiiiiiiii zrt3 r NN, 123 r r �' - ' Waffle House9 /Eastover-Central )) . /Elementary School -_ - + — GoMsboroJ 8__, /Eastover / ••`- 7rzrzt a6rr•, Q c ebb'fp`' tv - ,♦♦♦♦♦.....• ,.♦:♦;.•fr •/1 / e.. j�� �� �Ra PROJECT "°` e'er pe1,,,ro, 0vo, LOCATION ill aii r NOT TO SCALE Owner Project Title Date ALLTYPE CONSTRUCTION 06/29/22 C LAYTO 14.1 HOLIDAY INN EXPRESS Job No. MANAGEMENT, INC & SUITES 18053 ENGINEERING & DESIGN Drawing Title STREET VIEW Project Location C-002 EASTOVER, NC Sht. 1 of 1 -7 . a501 ` 04 05 35-12.5O` r.,,._..41:ei . .. ., . , ...,„. 13 'W. i ibis - gePA. -,...... ar-,44%ot' ......4-11..404,:a .4 -I- 89 eor r4y.� -- rin—liC 4131 0 • PROJECT 4, LOCATION ti 88 11 mil J U l Jr /.. atir • ii nit) 1 .. 1 ....:, _..r.,s--.:0A.N. S"' NOT TO SCALE Owner Project Title Date ALLTYPE CONSTRUCTION 009/22 C �14 � HOLIDAY INN EXPRESS Job No. MANAGEMENT, INC & SUITES 53 No. ENGINEERING& DESIGN Drawing Title Project Location C-001 USGS MAP EASTOVER, NC Sht. 1 of 1 a Soil Map—Cumberland County,North Carolina a N 704460 704530 704600 704670 704740 704810 704880 704950 705020 705090 35°T25"N � - \ , / /f , _, r — 35°T25"N , rile / iw' ° IL�_ i� �' Ramp, 111116. ,�'. . a%''��' I. iv. '' . � t , , 1 t Ay6 "V ' • !. ,� �-,. ...4 -i. ''y� Ali 1 h• �'7 x WV ' �k .7 .'�Q.* l ,i +% y;,• ,i;. . '� NOS` i!' , `� ...71• a � ..0 4e -Ra t r • .. B., . �r • )+�r'' , 4.4 WaB 1 ,4.49*,-.0%.1 yv 17-1111P- ' 0. 4 •, _ aoi1 Map ma not bea7 Iod'at.fi o4g�24. ' • i` * _ • _ 35°T 10"N —1 35°T 10"N 704460 704530 704600 704670 704740 704810 704880 704950 705020 705090 3 3 N Map Scale:1:3,090 if printed on A landscape(11"x 8.5")sheet. Meters m N 0 45 90 180 270 m Feet 0 150 300 m 600 90D Map projection:Web Mercato Coer coo dinates:WGS84 Edge dcs:UTM Zone 17N WGS84 USDA Natural Resources Web Soil Survey 6/29/2022 Conservation Service National Cooperative Soil Survey Page 1 of 3 Soil Map—Cumberland County,North Carolina MAP LEGEND MAP INFORMATION Area of Interest(AOI) A Spoil Area The soil surveys that comprise your AOI were mapped at ILI Area of Interest(AOI) 1:24,000. Q StonySpot Soils a) Very Stony Spot Warning:Soil Map may not be valid at this scale. 0 Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the scale of mapping can cause ,.rr Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil Other line placement.The maps do not show the small areas of • Soil Map Unit Points contrasting soils that could have been shown at a more detailed Special Line Features Special Point Features scale. u Blowout Water Features Streams and Canals Please rely on the bar scale on each map sheet for map El Borrow Pit measurements. Transportation Clay Spot Rails Source of Map: Natural Resources Conservation Service 0 Closed Depression Web Soil Survey URL: ti Interstate Highways Coordinate System: Web Mercator(EPSG:3857) X Gravel Pit US Routes oio Maps from the Web Soil Survey are based on the Web Mercator Gravelly Spot Major Roads projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the Q Landfill Local Roads Albers equal-area conic projection,should be used if more Lava Flow accurate calculations of distance or area are required. Background +• Marsh or swamp Aerial Photography This product is generated from the USDA-NRCS certified data as of the version date(s)listed below. Mine or Quarry Soil Survey Area: Cumberland County,North Carolina O Miscellaneous Water Survey Area Data: Version 23,Jan 21,2022 Q Perennial Water Soil map units are labeled(as space allows)for map scales V Rock Outcrop 1:50,000 or larger. Saline Spot Date(s)aerial images were photographed: Oct 22,2018—Oct 25,2018 Sandy Spot The orthophoto or other base map on which the soil lines were Severely Eroded Spot compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor 4) Sinkhole shifting of map unit boundaries may be evident. 33 Slide or Slip Sodic Spot 7\ Natural Resources Web Soil Survey 6/29/2022 i Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map—Cumberland County,North Carolina Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AyB Aycock loam, 1 to 4 percent 1.9 3.9% slopes BrB Bragg sandy loam, 1 to 4 19.5 40.7% percent slopes Gr Grantham loam 0.9 1.9% JT Johnston loam 0.0 0.0% Na Nahunta loam 4.7 9.8% NoA Norfolk loamy sand,0 to 2 8.3 17.4% percent slopes Ra Rains sandy loam,0 to 2 10.8 22.5% percent slopes WaB Wagram loamy sand,0 to 6 1.9 3.9% percent slopes Totals for Area of Interest 48.0 100.0% USDA Natural Resources Web Soil Survey 6/29/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 DESIGN OF RIPRAP OUTLET PROTECTION User Input Data Calculated Value Reference Data Designed By: wsc Date: Checked By: wSC Date: Company: Project Name: HIES EASTOVER Project No.: Site Location (City/Town) Raleigh Culvert Id. 1A Total Drainage Area (acres) 2.5 Rainfall Intensity 7 Runoff Coefficient 0.7 Step 1. Determine the tailwater depth from channel characteristics below the pipe outlet for the design capacity of the pipe_ If the tailwater depth is less than half the outlet pipe diameter. it is classified mnnmuun tailwater condition. If it is greater than half the pipe diameter. it is classified maximum condition. Pipes that outlet onto wide fiat areas with no defined channel are assumed to have a minimum tailwater condition unless reliable flood stage elevations show otherwise. Outlet pipe diameter, Do (in.) 24 Tailwater depth (in.) 11 Minimum/Maximum tailwater? Min TW (Fig. 8.06a) Discharge (cfs) 12.25 Velocity (ft./s) 2.97 Step 2. Based on the tailwater conditions determined in step 1. enter Figure 8.06a or Figure 8.06b_and determine d;,,riprap size and minimum apron length (La). The d:. size is the median stone size in a well-graded nprap apron. Step 3. Determine apron width at the pipe outlet. the apron shape. and the apron width at the outlet end from the same figure used in Step 2. Minimum TW Maximum TW Figure 8.06a Figure 8.06b Riprap d50, (ft.) 0.5 Minimum apron length, La (ft.) 12 Apron width at pipe outlet (ft.) 6 6 Apron shape Apron width at outlet end (ft.) 14 2 Step 4. Determine the maximum stone diameter: = 1 .5xd50 Minimum TW Maximum TW Max Stone Diameter, dmax (ft.) 0.75 0 Step 5. Determine the apron thickness: Apron thickness = I x d„, Minimum TW Maximum TW Apron Thickness(ft.) 1.125 0 Step 6. Fit the riprap apron to the site by making it level for the minimum length, La. from Figure 8.06a or Figure 8.06b. Extend the apron farther downstream and along channel banks until stability is assured. Keep the apron as straight as possible and align it with the flow of the receiving stream. Make any necessary alignment bends near the pipe outlet so that the entrance into the receiving stream is straight. Some locations may require lining of the entire channel cross section to assure stability. It may be necessary to increase the size of riprap where protection of the channel side slopes is necessary (Appendix S.05)_ Where overfills exist at pipe outlets or flows are excessive, a plunge pool should be considered, see page 8.06.8. 4/10/2022 Curb Cumulative Runoff Time Of Rainfall Total PIPE Computed Design Design Design Inlet No./ From To Face/ Area Coef. Sum Concentration Intensity Runoff Invert Invert Pipe Pipe Pipe Pipe Full-PipeFull-Pipe Q/Q-full VN-full Actual Travel cover Size/Type Descriptior Structure Structure RIM Area "A" "C" "CA" "CA" "Tc" "110" "Q10" Inlet Elev.Outlet Elev. Slope No.of Size Size Length Capacity Velocity Factor Factor Velocity Time Number Number ELEV (acres) (min) (in/hr) (cfs) (%) Pipes (in) (in) (ft) (cfs) (fps) (fps) (min) 6a 6a 5a 134.00 0.78 0.78 0.90 0.70 0.70 5.00 6.50 4.56 131.76 130.62 1.50% 1 12 18 76 12.86 7.28 0.355 0.35 2.58 0.49 0.74 5a 5a 4a 134.60 0.14 0.92 0.90 0.13 1.70 5.00 6.50 11.02 130.62 130.27 0.50% 1 21 24 71 15.99 5.09 0.689 0.69 3.51 0.34 1.98 4a 4a 3a 134.45 0.19 1.11 0.60 0.11 1.81 5.00 6.50 11.77 129.77 129.29 0.50% 1 21 24 95 15.99 5.09 0.736 0.74 3.74 0.42 2.69 3a 3a 2a 133.75 0.32 1.43 0.60 0.19 2.00 5.00 6.50 13.01 129.29 128.70 0.50% 1 22 24 119 15.99 5.09 0.814 0.81 4.14 0.48 2.46 2a 2a la 133.46 0.11 1.54 0.60 0.07 2.07 5.00 6.50 13.44 128.20 127.17 0.50% 1 22 30 206 28.99 5.91 0.464 0.46 2.74 1.25 2.77 1a la OutletA 131.45 0.29 1.83 0.60 0.17 2.24 5.00 6.50 14.57 127.17 127.00 0.50% 1 23 30 33 28.99 5.91 0.503 0.50 2.97 0.19 1.78 2c 2c 1c 132.45 0.39 0.39 0.80 0.31 0.77 5.00 6.50 4.99 128.78 128.30 1.00% 1 14 18 48 10.50 5.94 0.475 0.47 2.82 0.28 2.17 lc 1c outlet C 133.40 0.5 0.50 0.70 0.35 0.35 5.00 6.50 2.28 128.10 127.00 5.00% 1 8 18 22 23.48 13.29 0.097 0.10 1.29 0.28 3.80 4b 4b 3b 134.75 0.49 0.49 0.90 0.44 0.44 5.00 6.50 2.87 132.45 131.27 1.00% 1 11 15 118 6.46 5.26 0.444 0.44 2.34 0.84 1.05 3b 3b 2b 134.75 0.34 0.83 0.70 0.24 0.68 5.00 6.50 4.41 131.27 130.82 0.77% 1 14 18 58 9.21 5.21 0.479 0.48 2.50 0.39 1.98 2b 2b 1b 134.50 0.14 0.97 0.70 0.10 0.78 5.00 6.50 5.05 130.82 130.00 0.50% 1 16 24 164 15.99 5.09 0.316 0.32 1.61 1.70 1.68 1 b lb 4A 135.00 0.14 0.14 0.65 0.09 0.87 5.00 6.50 5.64 130.00 129.77 0.50% 1 16 24 46 15.99 5.09 0.353 0.35 1.80 0.43 3.00 culverta inva invb 139.00 0.65 0.65 0.70 0.46 0.46 5.00 6.50 2.96 136.09 135.20 0.77% 1 12 18 116 9.21 5.21 0.321 0.32 1.67 1.16 1.41 ECS SOUTHEAST, LLP Setting the Standard for Service" •� Geotechnical • Construction Materials • Environmental • Facilities NC Registered Engineering Firm F-1073 NC Registered Geologists Firm C-553 SC Registered Engineering Firm 3239 August 17, 2023 Mr. Nirav Modi Fresh Foods, Inc 301 North Pines Street Lumberton, North Carolina 28358 Reference: Report of Seasonal High Water Table Estimation and Infiltration Testing Holiday Inn Wade Additional Wade, Cumberland County, North Carolina ECS Project No. 49.21021 Dear Mr. Modi: ECS Southeast, LLP (ECS) recently conducted a seasonal high water table (SHWT) estimation and infiltration testing within the stormwater control measure (SCM) area(s) along Pembroke Road in Wade, Cumberland County, North Carolina. This letter, with attachments, is the report of our testing. Field Testing On August 16, 2023, ECS conducted an exploration of the subsurface soil conditions, in accordance with the NCDEQ Stormwater Design Manual section A-2, at two additionally requested locations shown on the attached Boring Location Plan (Figure 1). ECS used GPS equipment in order to determine the boring locations. The purpose of this exploration was to obtain subsurface information of the in situ soils for the SCM area(s). ECS explored the subsurface soil conditions by advancing one hand auger boring into the existing ground surface at each of the requested boring locations. ECS visually classified the subsurface soils and obtained representative samples of each soil type encountered. ECS also recorded the SHWT elevation 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 elevation was estimated at the boring locations below the existing grade elevation. A summary of the findings are as follows: Location SHWT 1-5 35 inches 1-6 22 inches ECS has conducted two additional infiltration tests utilizing a compact constant head permeameter near the hand auger borings in order to estimate the infiltration rate for the subsurface soils. Infiltration tests are typically conducted at two feet above the SHWT or in the most restrictive soil horizon. Tests in clayey conditions are conducted for durations of up to 30 minutes. If a more precise hydraulic conductivity value is desired for these locations, then ECS recommends collecting samples and performing laboratory permeability testing. ECS Capitol Services, PLLC • ECS Florida.LLC • ECS Mid-Atlantic,LLC • ECS Midwest,LLC • ECS Southeast, LLP • ECS Southwest, LLP www ecsltmited.com Report of SHWT Estimation and Infiltration Testing Holiday Inn Wade Additional Wade, Cumberland County, North Carolina ECS Project No. 49.21021 August 17, 2023 Field Test Results Below is a summary of the infiltration test results: Location Description Depth Inches/ hour 1-5 Tan/orange/gray sandy CLAY 30 inches <0.001 1-6 Orange/gray sandy CLAY 18 inches <0.001 Infiltration rates and SHWT may vary within the proposed site due to changes in elevation, soil classification and subsurface conditions. ECS recommends that a licensed surveyor provide the elevations of the boring locations. Closure ECS's analysis of the site has been based on our understanding of the site, the project information provided to us, and the data obtained during our exploration. If the project information provided to us is changed, please contact us so that our recommendations can be reviewed and appropriate revisions provided, if necessary. The discovery of any site or subsurface conditions during construction which deviate from the data outlined in this exploration should be reported to us for our review, analysis and revision of our recommendations, if necessary. The assessment of site environmental conditions for the presence of pollutants in the soil and groundwater of the site is beyond the scope of this geotechnical exploration. ECS appreciates the opportunity to provide our services to you on this project. If you have any questions concerning this report or this project, please contact us. Respectfully, ECS SOUTHEAST, LLP K. Brooks Wall W. Brandon Fulton, PSC, PWS, LSS Project Manager Environmental Department Manager bwall@ecslimited.com bfulton@ecslimited.com 910-686-9114 704-525-5152 Attachments: Figure 1 - Boring Location Plan Infiltration Testing Form GBA Document 2 e/ , w irl _ itimiww : -- _ / _ . . .., . .. . . , •••• • • • Clik ...Yr t . . _ 1.0 .' - .116F i 4; A ir' . , • - - - I. — - W' ob.- -•_1_ . Pe .;. • - - e ..- ....--.,-- ..,.. . .. ,5 _ -.-,----- • . . ,..-* -- - • — - .-, - ,,Aille• • . ._ ::i '-- . . •' - 0 . _ ?eco ..., „Akesko2.6 , . -.. , ... -.. , -...f, •, ' -;', ...4 , s• 1 . ..' .....- ..,...f' , ,. . ,-.----' . -' 1444 14.:‘----.E- *.--4•— -:- • - _ . • - .7016-.- ' -: ...4, '..'''' ', ,...4"''' 1- .4-''' . -$ + .._ -;„. • ,elii . . • ... „wok,-, '7,* . - :,i:----- _ .1 -71.••• '1(74Tts : .,`„fi '7.4( ' firlit ..:,"v-a . , „"-, i • • Ir-.. - •,iir. -,, , 141IL-t— . : , - '_':_,_ , ‘ ',if 4,' -• - IC,.. t ,. • - ••• - • 4-.n.- ..4 . 1-r.'.1a1"., .` c J_. .. - .6 t •' .:1?"` ' ts' `., :.-el. ' .ir...: 44. - a ,` i, • . - • - ,%--,,. r . ..4. .. . - V I S a ' • 111... ' ''" .,4r. -"' , '‘ t._.,..., .... • i. 's..•••,..4:.,- • . _ ...: •,' N 0 APPROXIMATE BORING LOCATIONS W E SCALE SHOWN ABOVE s Holiday Inn Wade Additional ___ _I Wade, Cumberland County, Eil_ _ _ Figure 1— Boring Location Plan North Carolina Provided by: Google Earth ECS Project#49.21021 August 16, 2023 JF I -.., Infiltration Testing Form Holiday Inn Wade Additional Wade, Cumberland County, North Carolina ECS Project No. 49.21021 August 16, 2023 Location Depth USCS Soil Description -1 0-24" SM Brown/orange fine SAND w/ clay 24"-44" CL Tan/orange/gray sandy CLAY Seasonal High Water Table was estimated to be at 35 inches below the existing grade elevation. Test was conducted at 30 inches below existing grade elevation Infiltration Rate: <0.001 inches per hour Location Depth USCS Soil Description 1-2 0-6" SM Brown/orange fine SAND w/ clay 6"-27" CL Orange/gray sandy CLAY Seasonal High Water Table was estimated to be at 22 inches below the existing grade elevation. Test was conducted at 18 inches below existing grade elevation Infiltration Rate: <0.001 inches per hour Important Information about This (-- Geotecbnical-[ngineering Subsurface problems are a principal cause of construction delays, cost overruns, claims, and disputes. While you cannot eliminate all such risks, you can manage them. The following information is provided to help. The Geoprofessional Business Association (GBA) Typical changes that could erode the reliability of this report include has prepared this advisory to help you—assumedly those that affect: a client representative—interpret and apply this • the site's size or shape; geotechnical-engineering report as effectively • the function of the proposed structure,as when it's as possible. In that way, clients can benefit from changed from a parking garage to an office building,or a lowered exposure to the subsurface problems from a light-industrial plant to a refrigerated warehouse; • the elevation,configuration,location,orientation,or that,for decades, have been a principal cause of weight of the proposed structure; construction delays, cost overruns, claims, and • the composition of the design team;or disputes. If you have questions or want more • project ownership. information about any of the issues discussed below, contact your GBA-member geotechnical engineer. As a general rule,always inform your geotechnical engineer of project Active involvement in the Geoprofessional Business changes-even minor ones-and request an assessment of their Association exposes geotechnical engineers to a impact.The geotechnical engineer who prepared this report cannot accept wide array of risk-confrontation techniques that can responsibility or liability for problems that arise because the geotechnical be of genuine benefit for everyone involved with a engineer was not informed about developments the engineer otherwise would have considered. construction project. This Report May Not Be Reliable Geotechnical-Engineering Services Are Performed for Do not rely on this report if your geotechnical engineer prepared it: Specific Purposes, Persons, and Projects • for a different client; Geotechnical engineers structure their services to meet the specific • for a different project; needs of their clients.A geotechnical-engineering study conducted for a different site(that may or may not include all or a for a given civil engineer will not likely meet the needs of a civil- portion of the original site);or works constructor or even a different civil engineer.Because each • before important events occurred at the site or adjacent geotechnical-engineering study is unique,each geotechnical- to it;e.g.,man-made events like construction or engineering report is unique,prepared solely for the client.Those who environmental remediation,or natural events like floods, rely on a geotechnical-engineering report prepared for a different client droughts,earthquakes,or groundwater fluctuations. can be seriously misled.No one except authorized client representatives should rely on this geotechnical-engineering report without first Note,too,that it could be unwise to rely on a geotechnical-engineering conferring with the geotechnical engineer who prepared it.And no one report whose reliability may have been affected by the passage of time, -not even you-should apply this report for any purpose or project except because of factors like changed subsurface conditions;new or modified the one originally contemplated. codes,standards,or regulations;or new techniques or tools.If your geotechnical engineer has not indicated an`apply-by"date on the report, Read this Report in Full ask what it should be,and,in general,if you are the least bit uncertain Costly problems have occurred because those relying on a geotechnical- about the continued reliability of this report,contact your geotechnical engineering report did not read it in its entirety.Do not rely on an engineer before applying it.A minor amount of additional testing or executive summary.Do not read selected elements only.Read this report analysis-if any is required at all-could prevent major problems. in full. Most of the "Findings" Related in This Report Are You Need to Inform Your Geotechnical Engineer Professional Opinions about Change Before construction begins,geotechnical engineers explore a site's Your geotechnical engineer considered unique,project-specific factors subsurface through various sampling and testing procedures. when designing the study behind this report and developing the Geotechnical engineers can observe actual subsurface conditions only at confirmation-dependent recommendations the report conveys.A few those specific locations where sampling and testing were performed.The typical factors include: data derived from that sampling and testing were reviewed by your • the client's goals,objectives,budget,schedule,and geotechnical engineer,who then applied professional judgment to risk-management preferences; form opinions about subsurface conditions throughout the site.Actual • the general nature of the structure involved,its size, sitewide-subsurface conditions may differ-maybe significantly-from configuration,and performance criteria; those indicated in this report.Confront that risk by retaining your • the structure's location and orientation on the site;and geotechnical engineer to serve on the design team from project start to • other planned or existing site improvements,such as project finish,so the individual can provide informed guidance quickly, retaining walls,access roads,parking lots,and whenever needed. underground utilities. This Report's Recommendations Are perform their own studies if they want to,and be sure to allow enough Confirmation-Dependent time to permit them to do so.Only then might you be in a position The recommendations included in this report-including any options to give constructors the information available to you,while requiring or alternatives-are confirmation-dependent.In other words,they are them to at least share some of the financial responsibilities stemming not final,because the geotechnical engineer who developed them relied from unanticipated conditions.Conducting prebid and preconstruction heavily on judgment and opinion to do so.Your geotechnical engineer conferences can also be valuable in this respect. can finalize the recommendations only after observing actual subsurface conditions revealed during construction.If through observation your Read Responsibility Provisions Closely geotechnical engineer confirms that the conditions assumed to exist Some client representatives,design professionals,and constructors do actually do exist,the recommendations can be relied upon,assuming not realize that geotechnical engineering is far less exact than other no other changes have occurred.The geotechnical engineer who prepared engineering disciplines.That lack of understanding has nurtured this report cannot assume responsibility or liability for confirmation- unrealistic expectations that have resulted in disappointments,delays, dependent recommendations if you fail to retain that engineer to perform cost overruns,claims,and disputes.To confront that risk,geotechnical construction observation. engineers commonly include explanatory provisions in their reports. Sometimes labeled"limitations,'many of these provisions indicate This Report Could Be Misinterpreted where geotechnical engineers'responsibilities begin and end,to help Other design professionals'misinterpretation of geotechnical- others recognize their own responsibilities and risks.Read these engineering reports has resulted in costly problems.Confront that risk provisions closely.Ask questions.Your geotechnical engineer should by having your geotechnical engineer serve as a full-time member of the respond fully and frankly. design team,to: • confer with other design-team members, Geoenvironmental Concerns Are Not Covered • help develop specifications, The personnel,equipment,and techniques used to perform an • review pertinent elements of other design professionals' environmental study-e.g.,a"phase-one"or"phase-two"environmental plans and specifications,and site assessment-differ significantly from those used to perform • be on hand quickly whenever geotechnical-engineering a geotechnical-engineering study.For that reason,a geotechnical- guidance is needed. engineering report does not usually relate any environmental findings, conclusions,or recommendations;e.g.,about the likelihood of You should also confront the risk of constructors misinterpreting this encountering underground storage tanks or regulated contaminants. report.Do so by retaining your geotechnical engineer to participate in Unanticipated subsurface environmental problems have led to project prebid and preconstruction conferences and to perform construction failures.If you have not yet obtained your own environmental observation. information,ask your geotechnical consultant for risk-management guidance.As a general rule,do not rely on an environmental report Give Constructors a Complete Report and Guidance prepared for a different client,site,or project,or that is more than six Some owners and design professionals mistakenly believe they can shift months old. unanticipated-subsurface-conditions liability to constructors by limiting the information they provide for bid preparation.To help prevent Obtain Professional Assistance to Deal with Moisture the costly,contentious problems this practice has caused,include the Infiltration and Mold complete geotechnical-engineering report,along with any attachments While your geotechnical engineer may have addressed groundwater, or appendices,with your contract documents,but be certain to note water infiltration,or similar issues in this report,none of the engineer's conspicuously that you've included the material for informational services were designed,conducted,or intended to prevent uncontrolled purposes only.To avoid misunderstanding,you may also want to note migration of moisture-including water vapor-from the soil through that"informational purposes"means constructors have no right to rely building slabs and walls and into the building interior,where it can on the interpretations,opinions,conclusions,or recommendations in cause mold growth and material-performance deficiencies.Accordingly, the report,but they may rely on the factual data relative to the specific proper implementation of the geotechnical engineer's recommendations times,locations,and depths/elevations referenced. Be certain that will not of itself be sufficient to prevent moisture infiltration.Confront constructors know they may learn about specific project requirements, the risk of moisture infiltration by including building-envelope or mold including options selected from the report,only from the design specialists on the design team.Geotechnical engineers are not building- drawings and specifications.Remind constructors that they may envelope or mold specialists. 5 GEOPROFESSIONAL BUSINESS t ASSOCIATION Telephone:301/565-2733 e-mail:info@geoprofessional.org wwwgeoprofessional.org Copyright 2016 by Geoprofessional Business Association(GBA).Duplication,reproduction,or copying of this document,in whole or in part,by any means whatsoever,is strictly prohibited,except with GBAs specific written permission.Excerpting,quoting,or otherwise extracting wording from this document is permitted only with the express written permission of GBA,and only for purposes of scholarly research or book review.Only members of GBA may use this document or its wording as a complement to or as an element of a report of any kind.Any other firm,individual,or other entity that so uses this document without being a GBA member could be committing negligent REPORT OF SUBSURFACE EXPLORATION AND GEOTECHNICAL ENGINEERING SERVICES HOLIDAY INN & SUITES EASTOVER, CUMBERLAND COUNTY, NORTH CAROLINA PREPARED FOR: MR. P. SINGH SANDHU ALL TYPE CONSTRUCTION & MANAGEMENT, INC. 3229 S. COLLEGE ROAD WILMINGTON, NORTH CAROLINA 28412 ECS PROJECT NUMBER 33:3711 June 22, 2016 ECS CAROLINAS, "Setting LLP the Standard for Service" �.M Geotechnical • Construction Materials • Environmental • Facilities NC Registered Engineering Firm F-1078 June 22, 2016 Mr. P. Singh Sandhu All Type Construction & Management 3229 S. College Road Wilmington, NC 28412 RE: Report of Subsurface Exploration and Geotechnical Services Holiday Inn & Suites Eastover, Cumberland County, North Carolina ECS Project Number 33:3711 Dear Mr. Sandhu: As authorized by your acceptance of ECS Proposal 33:2770 dated May 16, 2016, ECS has completed the subsurface exploration and geotechnical services for the above-referenced project. This report presents the findings of our subsurface exploration and our evaluations, as well as recommendations, regarding geotechnical-related design and construction considerations for the site. Thank you for the opportunity to work with you on this project. We would also at this time like to express our interest in providing a project-specific field construction testing and observation services required during the construction phase of this project. Should you have questions or if we can be of further assistance, please contact us. Respectfully Submitted, ECS CAROLINAS, LLP : ' A ^ llC 44„<„,_ :'k/i1JP1di` l �. /22/16 • Michael M. Ellis, El Winslow E. Goins, PE �o `{ �`'':f '\\'� Staff Professional Principal Engineer J/ 1 �ti ?u,\-\\ NC PE License No. 033751 726 Ramsey Street, Suite 3, Fayetteville, NC 28301 • T: 910-401-3288 • F: 910-323-0539 • www.ecslimited.com ECS Carolinas, LLP • ECS Florida, LLC • ECS Midwest, LLC • ECS Mid-Atlantic, LLC • ECS Southeast, LLC • ECS Texas,LLP TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 1 2.0 PROJECT OVERVIEW 2 2.1 Project Information 2 2.2 Scope of Work 2 2.3 Purpose of Exploration 2 3.0 EXPLORATION PROCEDURES 3 3.1 Subsurface Exploration Procedures 3 3.2 Laboratory Testing Program 3 4.0 SUBSURFACE EXPLORATION 4 4.1 Site Conditions 4 4.2 Regional Geology 4 4.3 Soil Conditions 4 4.4 Groundwater Conditions 5 4.5 Laboratory Test results 5 5.0 ANALYSIS AND RECOMMENDATIONS 6 5.1 Subgrade Preparation 6 5.2 Groundwater Control 6 5.3 Engineered Fill Placement 7 5.4 Foundations 8 5.5 Slab-on-Grade 10 5.6 Pavement Design Considerations 11 5.7 Site Drainage 12 5.8 Construction Considerations 12 6.0 CLOSING 13 APPENDICES Appendix A Figures Appendix B Boring Logs Appendix C Laboratory Test Results Appendix D General Conditions Appendix E Procedures Regarding Field Logs, Laboratory Testing, and Samples Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 1.0 EXECUTIVE SUMMARY ECS Carolinas, LLP (ECS) has completed a subsurface exploration and geotechnical engineering services for the proposed site located in Eastover, Cumberland County, North Carolina. This summary should not be considered apart from the entire text of the report with all the qualifications and conditions mentioned herein. Once the site plans are developed, additional site-specific geotechnical exploration should be conducted. The soil test borings encountered organic topsoil at the initial ground surface with thicknesses of approximately 2 inches. Underlying the organic topsoil to approximately 10 feet, soils consisting of stiff to very stiff, fat clay (CH), very soft to very stiff, sandy lean clay (CL), very loose to dense, clayey and silty sand (SC, SM) were encountered in the borings. From 10 feet to termination depths ranging from about 15 to 20 feet, borings B-1 through B-6 typically encountered stiff, sandy lean clay (CL) and very loose to medium dense, clayey, silty, and clean sand (SC, SM, SP). The on-site sandy soils (SC, SM, SP) should be appropriate for use as backfill material for this project, provided their moisture contents are within the acceptable range outlined in this report. We anticipate that minor cuts and fills on the order of 3 feet or less will be incorporated into the development of the site, with greater fill depths being anticipated for existing ditches at the site. A perched groundwater condition may exist on the site and temporary groundwater control measures may be necessary on the perimeter of the site. Provided the site preparation recommendations in this report are followed, proposed lightly to moderately loaded structures (column loads up to 150 kips and wall loads up to 5 kips per foot) may be supported on conventional shallow foundations. For footings supported on firm natural soil materials or new-engineered fill materials over firm natural soils, an allowable bearing pressure of 2,000 pounds per square foot (psf) is recommended. In order to achieve adequate bearing and reduce the potential for post construction settlements of the structures, the loose/soft near-surface soils encountered in the vicinity of boring B-2 may require localized undercutting and replacement or other appropriate remedial activities if they exist at the foundation subgrade elevation in building areas. Aggregate pier systems and driven timber piles are alternative options that can be used for the foundation of the building instead of undercutting the soft soils. Further details describing the foundation options are provided in section 5.3 "Foundations Recommendations" of this report. Based on the boring data, site conditions are suitable for a typical slab-on-grade section. Therefore, we recommend supporting the floor slab as a slab-on-grade over existing natural soils and new compacted structural fill that are stable when proofrolled. Based on the boring data, site conditions are suitable for support of asphaltic or Portland cement concrete pavement sections according to the criteria outlined in this report. Based on the boring data, difficult excavations are not anticipated for shallow foundation or utility excavations. 1 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 2.0 PROJECT OVERVIEW 2.1 Project Information The project consists of the construction of a multi-story hotel along with associated parking and driveways. The site is located near the intersection of Pembroke Lane and Goldsboro Road in Eastover, Cumberland County, North Carolina. No additional project information including structural information was available at the time of this report. 2.2 Scope of Work The site was explored by drilling eight soil test borings (Borings B-1 through B-8) and sampling the soils to termination and refusal depths ranging from approximately 10 to 20 feet below existing site grades. The boring locations were located in the field by ECS personnel using handheld GPS equipment and existing site features as reference. The locations shown should be considered approximate given the methods used. A Site Location Plan and Boring Location Diagram are provided in Appendix A of this report. 2.3 Purposes of Exploration The purpose of this exploration program was to determine the soil and groundwater conditions at the site and to develop engineering recommendations to assist in the design and construction of the proposed project. We accomplished these objectives as follows: • Performing a site reconnaissance to evaluate the existing site conditions, • Performing soil test borings to explore the subsurface soil and groundwater conditions, • Performing laboratory tests on selected representative soil samples from the borings to evaluate pertinent engineering properties; and, • Analyzing the field and laboratory data to develop appropriate geotechnical engineering design and construction recommendations. 2 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 3.0 FIELD EXPLORATION 3.1 Exploration Procedures The soil borings were performed with a drill rig, which utilized hollow stem augers (HSA) to advance the boreholes. Representative soil samples were obtained by means of the split-barrel sampling procedure in general accordance with ASTM Specification D-1586. In this procedure, a 2-inch O. D. split- barrel sampler is driven into the soil a distance of 18 inches by a 140 pound hammer with a free fall of 30 inches. The number of blows required to drive the sampler through the final 12-inch interval is termed the Standard Penetration Test (SPT) N-value and is indicated for each sample on the boring logs. The SPT N-value can be used to provide a qualitative indication of the in-place relative density of cohesionless soils. In a less reliable way, SPT N-values provide an indication of consistency for cohesive soils. These indications of relative density and consistency are qualitative, since many factors can significantly affect the SPT N-value and prevent a direct correlation between drill crews, drill rigs, drilling procedures, and hammer-rod-sampler assemblies. Field logs of the soils encountered in the borings were maintained by the drill crew. The soil samples obtained from the drilling operations were sealed in containers and were brought to ECS' laboratory for visual classification. 3.2 Laboratory Testing Program Representative soil samples obtained during our field exploration were selected and tested in our laboratory to check field classifications and to determine pertinent engineering properties. The laboratory testing program included: • visual classifications of soil according to ASTM D 2487; • index property testing included natural moisture content determinations (ASTM D 2216), grain size analyses (ASTM D 1140), and Atterberg Limits (ASTM D 4318). Data obtained from the laboratory tests are included on the Laboratory Testing Summary and in Appendix C of this report. 3 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 4.0 SUBSURFACE EXPLORATION 4.1 Site Conditions The site is located near the intersection of Pembroke Lane and Goldsboro Road in Eastover, Cumberland County, North Carolina. The site is relatively level, cleared to moderately wooded, and slopes upward from west to east with approximate site elevations ranging from 128 to 134 feet. 4.2 Site Geology The site is located in the Coastal Plain Physiographic Province of North Carolina. The Coastal Plain is composed of seven terraces, each representing a former level of the Atlantic Ocean. Soils in this area generally consist of sedimentary materials transported from other areas by the ocean or rivers. These deposits vary in thickness from a thin veneer along the western edge of the region to more than 10,000 feet near the coast. The sedimentary deposits of the Coastal Plain rest upon consolidated rocks similar to those underlying the Piedmont and Mountain Physiographic Provinces. In general, shallow unconfined groundwater movement within the overlying soils is largely controlled by topographic gradients. Recharge occurs primarily by infiltration along higher elevations and typically discharges into streams or other surface water bodies. The elevation of the shallow water table is transient and can vary greatly with seasonal fluctuations in precipitation. 4.3 Soil Conditions The soil conditions at each boring location are noted on the individual boring logs presented in Appendix B. A general description is provided below and a summary of the soil stratigraphy is shown on the Generalized Subsurface Profile in Appendix A. Subsurface conditions should be expected to vary between boring locations. The soil test borings encountered organic topsoil at the initial ground surface with thicknesses of approximately 2 inches. The topsoil thicknesses reported on the logs was based on driller observations and should be considered approximate. It should be noted that topsoil depths are expected to vary throughout the site. Underlying the organic topsoil to approximately 10 feet, soils consisting of stiff to very stiff, fat clay (CH), very soft to very stiff, sandy lean clay (CL), very loose to dense, clayey and silty sand (SC, SM) were encountered in the borings. The SPT resistance values (N-values) in the soils ranged from weight of hammer (W.O.H) to 37 blows per foot (bpf). From 10 feet to auger refusal depths ranging from about 15 to 20 feet, borings B-1 through B-6 typically encountered stiff, sandy lean clay (CL) and very loose to medium dense, clayey, silty, and clean sand (SC, SM, SP) with N-values ranging from 3 to 11 bpf. 4 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 4.4 Groundwater Groundwater was encountered at approximate depths ranging from 1 to 8 feet below existing grades at borings B-1, B-2, B-5, and B-6. At borings B-3, B-4, B-7, and B-8 groundwater was not encountered, however, cave in depths were observed to range from 6.5 to 8 feet. Cave in depths can sometimes be indicative of groundwater. Based on the groundwater measurements and our experience in the area, the groundwater readings are indicative of a perched water table. The highest groundwater observations are normally encountered in the late winter and early spring. Variations in the location of the long-term water table may occur as a result of changes in precipitation, evaporation, surface water runoff, and other factors not immediately apparent at the time of this exploration. Extended monitoring of the groundwater using wells would be required to determine the fluctuation of the groundwater level over time. 4.5 Laboratory Test Results The moisture contents in the tested samples ranged from 14.0 to 24.5 percent. In the tested samples, the percent passing the No. 200 sieve ranged from 21.1 to 48.0 percent. The Atterberg Limit tests resulted in liquid limits (LL) ranging from 40 to 56 and plastic limits (PL) ranging from 20 to 25 in the tested samples, respectively. Specific laboratory test results are provided in Appendix C of this report. 5 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 5.0 PRELIMINARY ANALYSIS AND RECOMMENDATIONS The following preliminary design and construction recommendations are based on our above- stated understanding of the proposed potential development and on the data obtained from the field exploration, visual soil classification, and laboratory results. The following preliminary recommendations are for preliminary design purposes. Once preliminary structural loading, geometry, and location of the structure are developed, we request the opportunity to review our recommendations in light of the new information and revise them as necessary. 5.1 Subgrade Preparation The first step in preparing the site for the proposed construction should be to remove vegetation, rootmat, topsoil, debris, deleterious materials and other soft or unsuitable materials from the existing ground surface. These operations should extend at least 10 feet, where possible, beyond the planned limits of the proposed structures and pavements. The exposed subgrade soils in structural and pavement areas should be proofrolled using a loaded dump truck, prior to placing any new fill to raise the grade. The subgrade soils in cut areas should also be proofrolled. The loaded dump truck should have an axle weight of at least 10 tons. Proofrolling should be observed by an experienced geotechnical engineer, or their personnel, at the time of construction to aid in identifying areas with soft or unsuitable materials. Soft or unsuitable materials encountered during proofrolling should be removed and replaced with an approved backfill compacted to the criteria given in Section 5.3 Fill Placement and Soil Compaction. Undercutting should be anticipated due to the presence of soft clays/loose sands in the upper three feet. Site subgrade conditions will be significantly influenced by weather conditions. Subgrades that are evaluated after periods of rainfall will not respond as well to proofrolling as subgrades that are evaluated after periods of more favorable weather. We strongly recommend that rubber tire equipment not be used if subgrade conditions exhibit elevated moisture conditions. The contractor should use tracked equipment to minimize the degradation of marginally stable subgrades. The preparation of fill subgrades, as well as proposed building subgrades, should be observed on a full-time basis by ECS personnel. These observations should be performed by a geotechnical engineer, or his representative, to ensure that the unsuitable materials have been removed and that the prepared subgrade is suitable for support of the proposed construction and/or fills. 5.2 Groundwater Control Temporary groundwater control measures may be necessary around the perimeter of the building pad and pavement areas to address the perched groundwater condition. Groundwater control is the purposeful drawdown of groundwater below subgrades, foundations, slabs, or pavements to facilitate construction and to mitigate long term problems associated with groundwater. It is the contractor's responsibility to plan for and budget for temporary groundwater control. The means and methods of lowering the groundwater are at the contractor's discretion. Temporary groundwater control measures typically consist of gravity ditches, well points, sump pumps, pumping from gravel lined and cased sumps, or other 6 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 suitable methods. Whatever method used, the groundwater control should be in place and operating continuously (around the clock) to achieve and maintain the desired drawdown in advance of excavation, proofrolling, compaction or other construction. Permanent groundwater control measures typically consist of French drain systems and/or permanent sumps/pumps. 5.3 Engineered Fill Placement Following the removal of deleterious surface and subsurface materials, and after achieving a stable subgrade, engineered fills can be placed and compacted to achieve the desired site grades. Fill for support of the proposed construction and for backfill of utility lines within expanded building and pavement limits should consist of an approved material, free of organic matter and debris and cobbles greater than 3 inches, and have a Liquid Limit (LL) and Plasticity Index (PI) less than 40 and 20, respectively. We also recommend that fills within structural areas have a modified Proctor (ASTM D 1557) maximum dry density of at least 100 pounds per cubic foot (pcf). Unsuitable fill materials include topsoil, organic materials (OH, OL), and high plasticity clays and silts (CH, MH). Such materials removed during grading operations should be either stockpiled for later use in landscape fills, or placed in approved on or off-site disposal areas. Existing soils containing significant amounts of organic matter will not be suitable for re-use as engineered fill. As such, the organic content of the near surface soils should be evaluated to determine if some of these soils will be suitable for re-use as engineered fill. Natural fine- grained soils classified as clays or silts (CL, ML) with LL and PI greater than 40 and 20, respectively, should be evaluated by the geotechnical engineer at the time of construction to determine their suitability for use as engineered fill. Prior to the commencement of fill operations and/or utilization of any off-site borrow materials, the contractor should provide representative samples of the proposed fill soils to the geotechnical engineer. The geotechnical engineer can determine the material's suitability for use as an engineered fill and develop moisture-density relationships in accordance with the recommendations provided herein. Samples should be provided to the geotechnical engineer at least 3 to 5 days prior to their use in the field to allow for the appropriate laboratory testing to be performed. Fill materials placed within the building and pavement areas should be placed in lifts not exceeding 8 inches in loose lift thickness and moisture conditioned to within their working range of optimum moisture content. The fills should then be compacted to a minimum of 95 percent of the soil's modified Proctor (ASTM D 1577) maximum dry density. The typical working range of optimum moisture for the natural Coastal Plain soils at the site is expected to be within approximately 3 percent of the optimum moisture content. Care should also be taken to provide a smooth, gently sloping ground surface at the end of each day's earthwork activities to help reduce the potential for ponding and absorption of surface water. Grade controls should also be maintained throughout the filling operations. Filling operations should be observed on a full-time basis by a qualified representative of ECS to determine that the required degrees of compaction are being achieved. We recommend that a minimum of one compaction test per 2,500-square-foot area be performed for each lift of controlled fill. Within trench or other localized excavations at least one test shall be performed for each 200 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 linear feet of each lift of fill. The elevation and location of the tests should be clearly identified at the time of fill placement. Areas which fail to achieve the required degree of compaction should be re-worked until the specified degree of compaction is achieved. Failing test areas may require moisture adjustments or other suitable remedial activities in order to achieve the required compaction. Fill materials should not be placed on frozen, frost-heaved, and/or soils which have been recently subjected to precipitation. Wet or frozen soils should be removed prior to the continuation of site grading and fill placement. Borrow fill materials, if required, should not contain excessively wet or frozen materials at the time of placement. Additionally, if grading operations occur during the winter months, frost-heaved soils should be removed prior to placement of engineered fill, granular sub-base materials, foundation or slab concrete, and asphalt pavement materials. If problems are encountered during the site grading operations, or if the actual site conditions differ from those encountered during our subsurface exploration, the geotechnical engineer should be notified immediately. 5.4 Foundations Shallow Foundations- Provided that the subgrade preparation and earthwork operations are completed in strict accordance with the recommendations of this report, the proposed residential structures can be supported on conventional shallow foundations bearing on approved natural materials and/or properly compacted fill. We recommend a maximum net allowable design soil bearing pressure of 2,000 psf for proportioning shallow foundations. To reduce the possibility of foundation bearing failure and excessive settlement due to local shear or "punching" failures, we recommend that continuous footings have a minimum width of 18 inches and that isolated column footings have a minimum lateral dimension of 30 inches. Furthermore, footings should bear at a depth to provide adequate frost cover protection. For this region, we recommend the bearing elevation be a minimum depth of 18 inches below the finished exterior grade or in accordance with the local building code requirements. Undercutting of up to 8 feet may be required in the vicinity of Boring B-2 due to the presence of very loose/very soft soils. Once structural loads and site grades are finalized, ECS requests the opportunity to review and revise our recommendations, if necessary. The settlement of a structure is a function of the compressibility of the bearing materials, bearing pressure, actual structural loads, fill depths, and the bearing elevation of footings with respect to the final ground surface elevation. Estimates of settlement for foundations bearing on engineered or non-engineered fills are strongly dependent on the quality of fill placed. Factors which may affect the quality of fill include maximum loose lift thickness of the fills placed and the amount of compactive effort placed on each lift. Provided that the recommendations outlined in this report are strictly adhered to, we expect that total settlements for the proposed construction are expected to be in the range of 1 inch or less, while the differential settlement will be approximately '/2 of the anticipated total settlement. This analysis is based on our engineering experience and assumed structural loadings for this type of structure, and is intended to aid the structural engineer with his design. 8 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 The net allowable soil bearing pressure refers to that pressure which may be transmitted to the foundation bearing soils in excess of the final minimum surrounding overburden pressure. The final footing elevation should be evaluated by ECS personnel to verify that the bearing soils are capable of supporting the recommended net allowable bearing pressure and suitable for foundation construction. These evaluations should include visual observations, hand rod probing, and dynamic cone penetrometer (ASTM STP 399) testing, or other methods deemed appropriate by the geotechnical engineer at the time of construction. If unsuitable materials are encountered at the base of a foundation excavation, it will be necessary to lower the base of the footing through the unsuitable materials or to undercut the unsuitable soils and to restore original bearing levels by placing compacted engineered fill materials, compacted graded aggregate base, No. 57 stone, or concrete. These evaluations should be performed within each column footing excavation and at intervals not greater than 50 feet in continuous footing excavations. Exposure to the environment may weaken the soils at the foundation bearing level if the foundation excavations remain exposed during periods of inclement weather. This is especially true for the fine-grained soils at the site. Therefore, foundation concrete should be placed the same day that proper excavation is achieved and the design bearing pressure is verified. If the bearing soils are softened by surface water absorption or exposure to the environment, the softened soils must be removed from the foundation excavation bottom immediately prior to placement of concrete. If the foundation excavation must remain open overnight, or if rainfall is imminent while the bearing soils are exposed, we recommend that a 2 to 3-inch thick "mud mat" of "lean" concrete be placed over the exposed bearing soils before the placement of reinforcing steel. Aggregate Pier System: A ground improvement system, such as an aggregate pier system combined with conventional shallow foundations can be utilized to support the proposed structure. An aggregate pier system is a ground improvement method used to improve shallow to intermediate, soft clay, loose silt, and loose sand soil for support of shallow foundations. Aggregate piers improve soft soil and fill by vibration, compaction, and ramming of thin lifts of crushed rock into a drilled hole. Soft soil is removed from the ground and then very dense, high quality crushed rock is compacted into the drilled hole which expands the hole into the adjacent soil. The cavity expansion effects increase the strength and stiffness of adjacent soil. The compaction and ramming of thin lifts of crushed rock increases the strength and stiffness, increases soil bearing capacity, and reduces soil compressibility. Aggregate piers can allow the soil to support heavier loads on conventional shallow spread and strip footings with reduced settlement. If an aggregate pier system is selected for support of foundations, we recommend that the following issues be considered prior to construction: • Specifications for the aggregate pier system for support of foundations should be prepared by a qualified specialty contractor. • One demonstration pier should be installed with the aggregate pier installer's standard procedures and then load-tested to determine the modulus. The load testing setup and procedures should be selected by the aggregate pier installer and submitted for review to the project geotechnical engineers. The demonstration pier should be installed at the foundation grade level. 9 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 • The aggregate pier element installation operations should be conducted under the continuous observation of the geotechnical engineer's representative. This observation is conducted to reduce the potential for short aggregate pier element installations and excessive aggregate lift thicknesses. Driven Timber Piles: The structure can be supported on a deep foundation system consisting of driven timber piles. The allowable capacities and embedment depths for an 8-inch square timber pile are presented in the summary table below. Embedment Axial Uplift Lateral Depth (ft) (kips) (kips) (kips) 13-15 20 2 1 Pile capacity analyses were performed assuming a free head condition and the provided compression and tension capacities are based on a factor of safety of 2.0 and 3.0, respectively. We recommend that the pile driving hammer used to install each timber pile have a minimum rated energy blow of 8,000 foot-pounds. Driving criteria and bearing elevations should be established prior to driving piles. It is suggested that several over length piles be driven prior to the start of production pile driving, to establish the driving criteria, pile lengths to be ordered and to determine if auger "pilot" holes are justified. Production piles should not be ordered until the pile lengths can be determined. A minimum of two over length piles are recommended for the structure. The over length piles could be driven in production pile locations. Pile installation operations and load tests, if necessary, should be monitored by a senior soil technician working under the supervision of a Licensed Engineer. ECS would be pleased to develop driving criteria for the project, once the method of installation and the contractor has been selected. 5.5 Slabs-on-Grade Slabs-on-grade can be adequately supported on undisturbed, low-plasticity soils or on newly- placed engineered fill provided the site preparation and fill recommendations outlined herein are implemented. For a properly prepared site, a modulus of subgrade reaction (ks) for the soil of 150 pounds per cubic inch for the soil can be used. This value is representative of a 1-ft square loaded area and may need to be adjusted depending on the size and shape of the loaded area depending on the method of structural analysis. We recommend the slabs-on-grade be underlain by a minimum of 4 inches of granular material having a maximum aggregate size of 1'/2 inches and no more than 2 percent fines. Prior to placing the granular material, the floor subgrade soil should be properly compacted, proofrolled, and free of standing water, mud, and frozen soil. A properly designed and constructed capillary break layer can often eliminate the need for a moisture retarder and can assist in more uniform curing of concrete. If a vapor retarder is considered to provide additional moisture protection, special attention should be given to the surface curing of the slabs to minimize uneven drying of 10 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 the slabs and associated cracking and/or slab curling. The use of a blotter or cushion layer above the vapor retarder can also be considered for project specific reasons. Please refer to ACI 302.1R96 Guide for Concrete Floor and Slab Construction and ASTM E 1643 Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill under Concrete Slabs for additional guidance on this issue. In order to minimize the crack width of shrinkage cracks that may develop near the surface of the slab, we recommend mesh reinforcement as a minimum be included in the design of the floor slab. For maximum effectiveness, temperature and shrinkage reinforcements in slabs on ground should be positioned in the upper third of the slab thickness. The Wire Reinforcement Institute recommends the mesh reinforcement be placed within 2 inches below the slab surface or within upper one-third of slab thickness, whichever is closer to the surface. Adequate construction joints, contraction joints and isolation joints should also be provided in the slab to reduce the impacts of cracking and shrinkage. Please refer to ACI 302.1R96 Guide for Concrete Floor and Slab Construction for additional information regarding concrete slab joint design. 5.6 Pavement Design Considerations For the design and construction of exterior pavements, the subgrades should be prepared in strict accordance with the recommendations in the "Subgrade Preparation" and "Engineered Fill Placement" sections of this report. An important consideration with the design and construction of pavements is surface and subsurface drainage. Where standing water develops, either on the pavement surface or within the base course layer, softening of the subgrade and other problems related to the deterioration of the pavement can be expected. Furthermore, good drainage should minimize the possibility of the subgrade materials becoming saturated during the normal service period of the pavement. Actual traffic conditions were not provided to ECS. However, based on our experience for light duty traffic for similar projects, a light duty flexible pavement section may consist of 2 inches of surface SF9.5 mix overlying at least 6 inches of compacted ABC stone in the parking and drive aisle areas. Similarly, a heavy duty flexible pavement section may consist of 3 inches of surface SF9.5 mix overlying at least 8 inches of compacted graded aggregate base in the roadway areas. For a rigid pavement section, we recommend 6 inches of 450 psi flexible strength concrete overlying at least 6 inches of compacted ABC stone in the roadway areas. Regardless of the section and type of construction utilized, saturation of the subgrade materials and asphalt pavement areas results in a softening of the subgrade material and shortened life span for the pavement. Therefore, we recommend that both the surface and subsurface materials for the pavement be properly graded to enhance surface and subgrade drainage. By quickly removing surface and subsurface water, softening of the subgrade can be reduced and the performance of the parking area can be improved. Site preparation for the parking areas should be similar to that for the building area including stripping, proofrolling, and the placement of compacted structural fill. Please note that large, front-loading trash dumpsters frequently impose concentrated front- wheel loads on pavements during loading. This type of loading typically results in rutting of Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 bituminous pavements and ultimately pavement failures and costly repairs. Consequently, we recommend the use of an 8 inch thick, mesh reinforced concrete slab that extends the entire length of the truck. Concrete pavements should be properly jointed and reinforced as needed to help reduce the potential for cracking and to permit proper load transfer. 5.7 Site Drainage Positive drainage should be provided around the perimeter of the pavement to minimize the potential for moisture infiltration into the subgrade soils. We recommend that landscaped areas adjacent to the pavements be sloped away from the construction and maintain a fall of at least 6 inches for the first 10 feet outward from the structure. The parking lots, sidewalks, and other paved areas should also be sloped to divert surface water away from the proposed pavement. The proper diversion of surface water during site grading and construction will help reduce the potential for delays associated with periods of inclement weather. The proper diversion of surface water is especially critical since portions of the site soils are expected to be moisture sensitive. Based upon our past experience, the use of "crowning" large areas of exposed soils should be useful to help divert surface water from the prepared subgrades. 5.8 Construction Considerations It is imperative to maintain good site drainage during earthwork operations to help maintain the integrity of the surface soils. The surface of the site should be kept properly graded to enhance drainage of surface water away from the proposed construction areas during the earthwork phase of this project. We recommend that surface drainage be diverted away from the proposed pavements areas without significantly interrupting its flow. Other practices would involve crowning and sealing the exposed soils daily with a smooth-drum roller at the end of the day's work to reduce the potential for infiltration of surface water into the exposed soils. The key to minimizing disturbance problems with the soils is to have proper control of the earthwork operations. Specifically, it should be the earthwork contractor's responsibility to maintain the site soils within a workable moisture content range to obtain the required in-place density and maintain a stable subgrade. Scarifying and drying operations should be included in the contractor's price and not be considered an extra to the contract. In addition, construction equipment cannot be permitted to randomly travel across the site, especially once the desired final grades have been established. Construction equipment should be limited to designated lanes and areas, especially during wet periods to minimize disturbance of the site subgrades. It will likely be necessary to utilize tracked equipment during grading operations particularly if the subgrade soils exhibit elevated moisture conditions. 12 Report of Subsurface Exploration and Geotechnical Engineering Services June 22,2016 Holiday Inn&Suites Eastover,Cumberland County, North Carolina ECS Project Number 33:3711 6.0 CLOSING Our geotechnical analysis of the site has been based on our understanding of the site, the project information provided to us, and the data obtained during our exploration. The general subsurface conditions utilized in our analyses have been based on interpolation of subsurface data between the borings. If the project information provided to us is changed, please contact us so that our recommendations can be reviewed and appropriate revisions provided, if necessary. The discovery of any site or subsurface conditions during construction which deviate from the data outlined in this exploration should be reported to us for our review, analysis and revision of our recommendations, if necessary. The assessment of site environmental conditions for the presence of pollutants in the soil and groundwater of the site is beyond the scope of this geotechnical exploration. 13 APPENDIX A FIGURES • .40: N . . . . aft.,.. . iik . , _ (c5 - to • _ ' � � 95 of Nt\4411;---""'W ' olrt t •� . � - • . A ,„,,e ; .k. . / 1863 .� r 1 1 / „•,4,..4.4t. i •• •• T.— • sr • ..'/ ..-- ...er. •• / Y.I F • ' .e ......7. .r A. ' t 4 i •..... r , A hst4r7 .1*-- -- , it --4._-1-4 ,,,,i -- , -4;-- .,i.t. .."6' '°.• .' • ‘511%.. '1"-= . %lieleilliiill i. ,• - . vt p•:.,!,AfAil APPROXIMATE SITE LOCATION EG NTS SITE VICINITY MAP Holiday Inn & Suites �v _, `_ --O,.E:T LIME ^r' 33.3711 1 Source: Google Maps 1., ImS Eastover, North Carolina "MTE I 6/20/2016 . . . ir , * • I'l 0 ."` . ; 1 .....: L.___.,. > • ... ..4 14:14 4. • a . CO •• • ,i‘ F6V 'IL ' • A. Z -1�I /y 1 OWli:SIk 1. ,/'` 'SOWN it • Lz- B-6 C. } , „ _.y ,\ El; Li • L. [1 :- B-8 L _ - - '4� ' '-� ' 7 ` - - . . 4 ......... . , __ .A._ .... .. 0 . B-7 . "' \ B-5 a. B-2 a) Z = •0 _-:11k -444r . vlk a a B-3 .,. CD Ec, mm, Wes , • :• `I .• .sue 'et.' ��77 ` '1 Sir SCALE •. .� _i .46, •'e 4sSHO'�id�l1 yt !- • :'40.E0T • No 33:3711 i ~• ,�� _S..�E 1 Ali,_ DENOTESAPPROXIMATE ATE LOCATION OF SOIL TEST BORING 6/17/2016 SOIL CLASSIFICATION LEGEND SURFACE MATERIALS ROCK TYPES SYMBOL LEGEND !/yy�• 0-SHEINR E AL ilea ME tM-FFFi9 4METES �AILL .-Ev59LE[EILL .-rogEAELE nu '+^ I ■ L1 �- �Y WART LEVEL DWDAS LADLIElMyAWEDAS ®6W N81 EaALED 6RAYEL GC LUYEY 6RAYEL � A-LQWMSMRY CLAY St EI)01LY WAND SAND ON L460 RASTIQTV OA6AIdL SILTS AND RAYS WR-WEATIBIED OOP DA DECOMPOSED cccc —Tssoa MOOT MEWS _ _ _ i WATER LEM-SEASONAL Mt6N WA tfi I6M SAW 411AYFL ^ SW WELL 4240E15 SMA) ®MA•ram ItASRIlTY SAT --4 SL CLAYFt SAM a2.LOW AASTILI-V WNWSAES AND a. E iMW•RMITMLY WEATNEAEOPO .ASPHALT -'VpJD ❑ MOMETA L 1 WA ER EEL AERA CASING9EMOVIL (7'6A.N70E2v 6RAPIIPO4 II II ML LOW n RS ASTiS SAT ❑SM-SUS$Alup a C. 4RWEEASTtm SaM .+T.PEAT ENWA-NEBIY WEADLWEDE00( �. ESED NARY _ wARA LEtII AFtEC NNOLAS o B-1 B-2 B-3 B-4 B-5 BR6 0 up. 9F 0 1'� :50 SM SC CL CLCL 0 � � 5 v� •° Sc 11 / 0 / 13/ 28 13/, 16/ / CL Sc CL 5 5 / 9 13 12� 12/ 4- 10 / .. SC �• :f 10 0 N /./1/ C9 'Cr SM S C - SP T a N 5 6 6 12 11 CL 7 M Q 15 . � . . 15 .+ v� / Terminated due to heavingseTerminated due to heavingsand / � SM SM 5 @ 1 @ 15 / vv�� �'•: SC 4 3 6 20 20 Terminated due to heaving seTerminated due to heaving seTerminated due to heaving seTerminated due to heaving sand - @20' @ 20' @ 20' @20' 25 25 _ i GENERALIZED SUBSURFACE E6SOIL PROFILE NOTES: 1 SEE INDIVIDUAL BORING LOG AND GEOTECHNICAL REPORT FOR ADDITIONAL INFORMATION. Holiday Inn & Suites Eastover GEO 2 PENETRATION TEST RESISTANCE IN BLOWS PER FOOT (ASTM D1586). All Type Construction & Management, Inc. 3 HORIZONTAL DISTANCES ARE NOT TO SCALE. Eastover, Cumberland County, NC 1 PROJECT N03711 I DATE:6/20/20161 VERTICAL SCAL&L.'=5' SOIL CLASSIFICATION LEGEND SURFACE MATERIALS ROCK TYPES SYMBOL LEGEND !/yy�• St-$Earl Tta I.Par COPE YAl-APE69,a ME1Ei Snit 11,-E055TiE F111 .-rogiAPAE nu +^ I ■ L1 �- �Y WART LEVEL DWDAS DPD1IE6yAAKDA6 ®6W•N81 PaALED QAYEE 6C[UYEY 6RAYEL � A-LOW MSMRY CLAY 9 YI)01LY WAND SAND CM H160 EtASRLITY 0660I4L SILTS ANpCGYS WR-WEATIBED WI D6•DECOMPOSED ROCY —Y650a MOOT MEWS _ i WATER LEM-%AWN.Ht6H WAlTP ®6.N SILTY 4NAOFl '^ SW•NfU GRADED SAtq ®NN ram iNSRQTY say Sc-�7 CLAYEY SANG a-LOW AASITLIN OPCMIIC SILTS AND am. E`E�'iWW•RMITALLY II/EMBED Ka (.'AYHAL, -,YOJD ❑OETAWWWIC WA1EII lFIFI AiRA CASING 9EMVVII (7'P.KOORLY ilmallGMYFL III ALL LawtASTI4TY SILT ❑NA-sun SAND a CN.1D9HKASTTCCSaM .'II PT YEAT I� HWA.HWYEYE.1MMAS= I I6RAKi E.SEDINENTaPY ,: wATEA lEtT3 ,rff.NHOIAIS .L'I. f/• E� II i LLL... 0 B"7 B"8 0 /'s 15/ CL 6 CL / .• SC 26 28 '' 5 5 15/ 16 CH 37 SM 11 /f- 10 10 0 LL END OF BORING END OF BORING - @ 10' @ 10' f t 5. +- T IZ - - 10 N M Q 15 15 .♦ 20 20 25 25 I GENERALIZED SUBSURFACE NOTES: Eill° 13 SOIL PROFILE 1 SEE INDIVIDUAL BORING LOG AND GEOTECHNICAL REPORT FOR ADDITIONAL INFORMATION. Holiday Inn & Suites Eastover GEO 2 PENETRATION TEST RESISTANCE IN BLOWS PER FOOT (ASTM D1586). All Tye Construction & Management, Inc. 3 HORIZONTAL DISTANCES ARE NOT TO SCALE. Eastover, Cumberland County, NC 1 PROJECT N03711 I DATE:6/20/20161 VERTICAL SCAL&A.'=5' UNIFIED SOIL CLASSIFICATION SYSTEM (ASTM D 2487) Major Divisions Group Typical Names Laboratory Classification Criteria Symbols W ell-graded gravels, gravel- GW sand mixtures,little or no fines N (0C"=D6o/D10 greater than 4 N > o _ Ce=(D30)21(D1oxD6o)between 1 and 3 o co o m a) '55 Poorly graded gravels, gravel- Qj -0 .N — GP sand mixtures,little or no fines L .c Not meeting all gradation requirements for GW a) a) U � U co 2 a>i N d) ( > O ° U o o d c a z N c ^ eD UZ O a ID o GMa Silty gravels, gravel-sand .( .N Atterberg limits below "A" line o a r _c m mixtures cm 83 or P.I.less than 4 Above "A" line with P.I. o co 3 ro ai u E between 4 and 7 are d m co m m - O oo aN borderline cases requiring CO c o co m I N Q° use of dual symbols as n o E o — O Q GC Clayey gravels, gravel-sand- > N Atterberg limits below "A" line c a clay mixtures y To or P.I.less than 7 'o os 7).a N '0 ' co u) .ao ° Well-graded sands, gravelly (Q E '5 Cu=D60/D10 greater than 6 as ° c SW sands,little or no fines -0 c m Ce=(D30)2/(D1oxD6o)between 1 and 3 o � .cn co c U E 15 o c o -i (13 o > N m a a U SP Poorly graded sands,gravelly O u) ° Not meeting all gradation requirements for SW _c w a v sands,little or no fines m a c 2 .m N E 0 � = .a N `m Y ° �� 2 2 ° c- as 0 (D `o ° C o) m o m o z d N c6 E. co co c E SMa Silty sands,sand-silt mixtures 2 8 3 a U Atterberg limits above "A" line m n Q Q o o or P.I.less than 4 Limits plotting in CL-ML Y m .3 a c u N _ o Q N zone with P.I. between 4 2 E ° caw c ° o, ° and 7 are borderline cases 2 E c o . m a requiring use of dual in o —_' — - c" symbols Q SC Clayey sands,sand-clay N Q N N m o Atterberg limits above "A" line mixtures a a ° J 2 Lo with P.I.greater than 7 Inorganic silts and very fine E ML sands, rock flour, silty or Plasticity Chart cr, c clayey fine sands, or clayey -a, co, silts with slight plasticity > ° u) Inorganic clays of low to 60 o as CL medium plasticity, gravelly o a E clays, sandy clays, silty clays, "A" line lean clays 50 z° J Organic silts and organic silty CH vco OL clays of low plasticity ,< 40 = t d N Inorganic silts, micaceous or CL 0 E 6 MH diatomaceous fine sandy or Y in silty soils,elastic silts F.)" 30 m u, cn c6 >,-- d U - iL co m -01 2 CH Inorganic clays of high o. 20 MH and OH E co 0) plasticity,fat clays m . E 10 .0 Cl) co OH Organic clays of medium to CL-ML ML and OL — high plasticity,organic silts 0 o 0 10 20 30 40 50 60 70 80 90 100 U r g .a Liquid Limit CD a, o Pt Peat and other highly organic = O soils a Division of GM and SM groups into subdivisions of d and u are for roads and airfields only. Subdivision is based on Atterberg limits;suffix d used when L.L. is 28 or less and the P.I.is 6 or less;the suffix u used when L.L.is greater than 28. b Borderline classifications, used for soils possessing characteristics of two groups, are designated by combinations of group symbols. For example: GW- GC,well-graded gravel-sand mixture with clay binder. (From Table 2.16-Winterkorn and Fang, 1975) REFERENCE NOTES FOR BORING LOGS I. Drilling Sampling Symbols SS Split Spoon Sampler ST Shelby Tube Sampler RC Rock Core, NX, BX, AX PM Pressuremeter DC Dutch Cone Penetrometer RD Rock Bit Drilling BS Bulk Sample of Cuttings PA Power Auger (no sample) HSA Hollow Stem Auger WS Wash sample REC Rock Sample Recovery% RQD Rock Quality Designation % II. Correlation of Penetration Resistances to Soil Properties Standard Penetration (blows/ft) refers to the blows per foot of a 140 lb. hammer falling 30 inches on a 2-inch OD split-spoon sampler, as specified in ASTM D 1586. The blow count is commonly referred to as the N-value. A. Non-Cohesive Soils (Silt, Sand, Gravel and Combinations) Density Relative Properties 0 to 4 blows/ft Very Loose Adjective Form 12%to 49% 5 to 10 blows/ft Loose With 5%to 12% 11 to 30 blows/ft Medium Dense 31 to 50 blows/ft Dense Over 51 blows/ft Very Dense Particle Size Identification Boulders 12 inches or larger Cobbles 3 inches to 12 inches Gravel Coarse 3/4 inch to 3 inches Fine 4.75 mm to 3/4 inch Sand Coarse 2.00 mm to 4.75 mm Medium 0.425 mm to 2.00 mm Fine 0.075 mm to 0.425 mm Silt and Clay Less than 0.075 mm B. Cohesive Soils (Clay, Silt, and Combinations) Unconfined Degree of Plasticity Blows/ft Consistency Comp. Strength Plasticity Index Qp (tsf) 0 to 2 Very Soft Under 0.25 None to slight 0—4 3 to 4 Soft 0.25-0.49 Slight 5—7 5 to 8 Medium Stiff 0.50-0.99 Medium 8—22 9 to 15 Stiff 1.00-1.99 High to Very High Over 22 16 to 30 Very Stiff 2.00-3.99 31 to 50 Hard 4.00-8.00 Over 50 Very Hard Over 8.00 III. Water Level Measurement Symbols WL Water Level BCR Before Casing Removal DCI Dry Cave-In WS While Sampling ACR After Casing Removal WCI Wet Cave-In WD While Drilling 0 Groundwater Level at Time of Drilling GWT Day After Drilling The water levels are those levels actually measured in the borehole at the times indicated by the symbol. The measurements are relatively reliable when augering, without adding fluids, in a granular soil. In clay and plastic silts, the accurate determination of water levels may require several days for the water level to stabilize. In such cases, additional methods of measurement are generally applied. CLIENT JOB# BORING# SHEET All Type Construction & Management, Inc. 3711 B-1 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w • z co E LIMIT% CONTENT% LIMIT% w X • A a z o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>1�7= O w w w w as 2 g 2 0 SURFACE ELEVATION w w STANDARD PENETRATION o an co coaw[ w m BLOWS/FT 0 — \Topsoil Depth[2.00"] / 7 (CL)SILTY LEAN CLAY, Red/Gray/Tan,Wet, j 2 S-1 SS 18 18 Stiff 4 • ►:� j n 5 4 S-2 SS 18 18 4 9 ►:� 5 5 3 — S 3 SS 18 18 4 11 j 7 (SM)SILTY FINE TO MEDIUM SAND,Orange/ 2 _- S 4 SS 18 18 Tan, Saturated, Loose 3 5 ►a 10.19 2 3 _- S-5 SS 18 18 2 5 ►3 3 15 AUGER REFUSAL @ 15' 20— 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL 2.5 WS❑ WD BORING STARTED 06/07/16 CAVE IN DEPTH @a 6.0' • WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET All Type Construction & Management, Inc. 3711 B-2 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION _ ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w • z co E LIMIT% CONTENT% LIMIT% w X • A a z o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>100 O WWWW as 2 g 2 OU SURFACE ELEVATION w w STANDARD PENETRATION • a• n co coaw[ w BLOWS/FT 0 — \Topsoil Depth[2.00"] / .:c. 77 (SC)CLAYEY FINE SAND, Dark Gray, r• WOH_ S-1 SS 18 18 Saturated,Very Loose woF -0 WOH WOH - S-2 SS 18 18 WolO 5' WOH ' (CL)SANDY LEAN CLAY,Tan/Light Gray/ — S 3 SS 18 18 Orange,Saturated,Very Soft to Medium Stiff / woH / WOH _ / WOH S-4 SS 18 18 j 2 5 10' 9 — j — j (SP) MEDIUM SAND,Orange/Tan,Wet, Loose 4 - S-5 SS 18 18 4 6-0 2 15 AUGER REFUSAL @ 15' 20— 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL 1.0 WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @a 4.5' • WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA APPENDIX B BORING LOGS CLIENT JOB# BORING# SHEET All Type Construction & Management, Inc. 3711 B-3 1 OF 1WI PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION _ ROCK QUALITY DESIGNATION&RECOVERY RQD°% - — - REC% z DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w z co E LIMIT% CONTENT% LIMIT% w X � A a LL z o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION%1007) 1 O w w w w cc F Ch- as 2 g 2 OU SURFACE ELEVATION w w STANDARD PENETRATION o can c¢ coaw[ w m BLOWS/FT o — Topsoil Depth[2.00"] %• . (SC)CLAYEY FINE TO MEDIUM SAND,Tan// ix•s• • 5 S-1 SS 18 18 Red/Orange, Moist to Saturated, Mediums 5 13 Dense to Very Loose / = 8 - S-2 SS 18 18 11 21 ►D 5 10 ::7' — S-3 SS 18 18 7 1 6 _ 3 • S-4 SS 18 18 ;• 4 9 10' % 5 j/' _- S-5 SS 18 18 j./' 3 6 ►:� 15 3 •:: _- S-6 SS 18 18 1 3 20 2 AUGER REFUSAL @ 20' 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL 2.0 WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @a 6.5' 31 WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET All Type Construction & Management, Inc. 3711 B-4 1 OF 1 WI PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION _ ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% z w DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID z co E LIMIT% CONTENT% LIMIT% w X • A a LL z , o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>100X) 1 O w w w W F csh as 2 g 2 OU SURFACE ELEVATION w w STANDARD PENETRATION o can c¢n co w coBLOWSIFT 0 _ \Topsoil Depth[2.00"] / r (CL)SILTY LEAN CLAY, Brown/Tan/Red, 2 S-1 SS 18 18 Moist, Medium Stiff to Very Stiff 2 ►� 3 5 6 25 S-2 SS 18 18 j 10 5 j 15 (SC)CLAYEY FINE SAND,Orange/Red/Gray, ' S 3 SS 18 18 Wet, Medium Dense is 28 ►e — 14 _ i.• .. 4 S4 SS 18 18 6 10 .• 7 13 (SM)SILTY FINE SAND,Orange,Wet, Medium — Dense to Very Loose _ 3 _ S-5 SS 18 18 4 12 15' 8 _ 3 S-6 SS 18 18 2 4 2 20 AUGER REFUSAL @ 20' 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @a 8' 31 WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET 11 mi All Type Construction & Management, Inc. 3711 B-5 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% z DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w 2- co E LIMIT% CONTENT% LIMIT% 1- w X • A a LL z , o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>10022 J ZO w w w w cc F csii a m m CL OU SURFACE ELEVATION w w ® STANDARD PENETRATION w• C COi aw[ d m BLOWS/FT 5 )-Topsoil Depth[2.00"] / (CL)SANDY LEAN CLAY, Brown/Red, Moist, j 2 S-1 SS 18 18 Medium Stiff to Hard j 2 ►.� — 4 6 _ 8 S-2 SS 18 18 j 16 ►D 5' j 17 33 2158 (SC)CLAYEY FINE SAND, Red/Tan, Moist, K`; 7 1356 S-3 SS 18 18 Medium Dense 6 245 25 7 _ : ... 5 S-4 SS 18 18 5 1 ►D 10' _;:;. 7 (CL)SANDY LEAN CLAY, Red/Gray/Orange, — Wet,Stiff _ j 4 S-5 SS 18 18 4 11 ►:� 15' 7 (SC)CLAYEY FINE SAND,Tan,Wet,Very /</e. — Loose :.:' 2 _- S-6 SS 18 18 2 ►D 3 20 AUGER REFUSAL @ 20' �s// 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL 8 WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @a 9' 31 WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET d All Type Construction & Management, Inc. 3711 B-6 1 OF 1 1E -777.1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w • z co E LIMIT% CONTENT% LIMIT% a w X • A LL z o BOTTOM OF CASING M LOSS OF CIRCULATION>len) O w w w w F a a a > SURFACE ELEVATION w > ® STANDARD PENETRATION a_ 0o can (I) COCC w BLOWS/FT o — \Topsoil Depth[2.001 (SM)SILTY FINE SAND,Tan, Moist, Medium 2 S-1 SS 18 18 Dense,With Tree Roots 3 11 ell 8 (SM)SILTY FINE SAND, Brown/Black, Moist, Medium Dense 4 - S-2 SS 18 18 8 17 5 9 (CL)SANDY LEAN CLAY,Gray,Moist to Wet, S-3 SS 18 18 Very Stiff to Stiff j 7 16 9 77 _ 4 S-4 SS 18 18 5 12 10 7 j (SM)SILTY MEDIUM TO COARSE SAND,Tan, Saturated, Loose WOH _- S-5 SS 18 18 3 7 15' 4 2 _- S-6 SS 18 18 3 6 3 20 AUGER REFUSAL @ 20' 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL 8 WS❑ WD BORING STARTED 06/07/16 CAVE IN DEPTH @ 11' • WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Manual • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET All Type Construction & Management, Inc. 3711 B-7 1 OF 1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID w • z co E LIMIT% CONTENT% LIMIT% w X • A z o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>1007= O w w w w as 2 g 2 0 SURFACE ELEVATION w w STANDARD PENETRATION o an co coit w m BLOWS/FT 0 — \Topsoil Depth[2.00"] / j 7 ' (CL)SANDY LEAN CLAY,Tan/Red,Moist, 1 S-1 SS 18 18 Medium Stiff to Very Stiff 3 — j 3 6 6 26 S-2 SS 18 18 13 5 13 (CL) SILTY LEAN CLAY, Gray/Red, Moist, Stiff 6 — S-3 SS 18 18 6 15 9 (SM)SILTY FINE SAND,Tan/Orange/Red, Moist, Dense 7 _- S-4 SS 18 18 20 17 S7 10 END OF BORING @ 10' 15— 20— 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. • WL WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @ 7' • WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto • WL RIG ATV FOREMAN Jake DRILLING METHOD HSA CLIENT JOB# BORING# SHEET 0 d All Type Construction & Management, Inc. 3711 B-8 1 OF 11E -777.1 PROJECT NAME ARCHITECT-ENGINEER Holiday Inn & Suites Eastover GEO SITE LOCATION CALIBRATED PENETROMETER TONS/FT2 Eastover, Cumberland County, NC NORTHING EASTING STATION ROCK QUALITY DESIGNATION&RECOVERY RQD% - — - REC% z DESCRIPTION OF MATERIAL ENGLISH UNITS PLASTIC WATER LIQUID z co E LIMIT% CONTENT% LIMIT% w •1- ,.. w X • A a LL z o ¢ BOTTOM OF CASING M LOSS OF CIRCULATION>100i) J O w w w w cc F I a a a > SURFACE ELEVATION w > ® STANDARD PENETRATION o can (I) COo w onBLOWS/FT o — \Topsoil Depth[2.001 / ri — (CL)SANDY LEAN CLAY, Brown,Moist,Stiff 4 S-1 SS 18 18 6 15 9 — j 2157 (SC)CLAYEY FINE SAND, Red/Tan, Moist, 14 0-0X ———40 7 S-2 SS 18 18 Medium Dense 13 20 28 5 15 (CH)SILTY FAT CLAY,Gray,Moist, Very Stiff S-3 SS 18 18 to Stiff / 5 16 9 _ 5 _ S4 SS 18 18 5 10 / 6 J1 END OF BORING @ 10' 15— 20— 25— 30— THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETWEEN SOIL TYPES.IN-SITU THE TRANSITION MAY BE GRADUAL. WL WS❑ WD® BORING STARTED 06/07/16 CAVE IN DEPTH @ 7' 51 WL(SHW) 1 WL(ACR) BORING COMPLETED 06/07/16 HAMMER TYPE Auto WL RIG ATV FOREMAN Jake DRILLING METHOD HSA APPENDIX C LABORATORY RESULTS Laboratory Testing Summary Page 1 of 1 Atterberg Limits3 Percent Moisture - Density(Corr.)5 Sample Sample Depth MC1 Soil Passing Maximum Optimum CBR Source Number feetOther (feet) (%) Type2 LL PL PI No. 200 Density Moisture Values Sieve4 (pcf) (%) B-5 _ 2158 6.0-7.5 24.5 SC 56 25 31 _ 48.0 B-8 2157 3.5-5.0 14.0 SC 40 20 20 21.1 _ . - - Notes: 1.ASTM D 2216,2.ASTM D 2487,3.ASTM D 4318,4.ASTM D 1140,5.See test reports for test method,6.See test reports for test method Definitions: MC:Moisture Content,Soil Type:AASHTO,LL:Liquid Limit,PL:Plastic Limit,PI:Plasticity Index,CBR:California Bearing Ratio,OC:Organic Content Project No. 33.3711 i ECS Carolinas, LLP Project Name: Holiday Inn and Suites 6714 Netherlands Drive PM: Mike Ellis WS' Wilmington, NC 28405 PE: Winslow E.Goins Phone: (910) 686-9114 Printed On: 6/20/16 APPENDIX D GENERAL CONDITIONS The analysis, conclusions, and recommendations submitted in this report are based on the exploration previously outlined and the data collected at the points shown on the attached location plan. This report does not reflect specific variations that may occur between test locations. The borings were located where site conditions permitted and where it is believed representative conditions occur, but the full nature and extent of variations between borings and of subsurface conditions not encountered by any boring may not become evident until the course of construction. If variations become evident at any time before or during the course of construction, it will be necessary to make a re-evaluation of the conclusions and recommendations of this report and further exploration, observation, and/or testing may be required. This preliminary report has been prepared in accordance with generally accepted soil and foundation engineering practices and makes no other warranties, either express or implied, as to the professional advice under the terms of our agreement and included in this report. The recommendations contained herein are made with the understanding that the contract documents between the owner and foundation or earthwork contractor or between the owner and the general contractor and the caisson, foundation, excavating and earthwork subcontractors, if any, shall require that the contractor certify that all work in connection with foundations, piles, caissons, compacted fills and other elements of the foundation or other support components are in place at the locations, with proper dimensions and plumb, as shown on the plans and specifications for the project. Further, it is understood the contract documents will specify that the contractor will, upon becoming aware of apparent or latent subsurface conditions differing from those disclosed by the original soil exploration work, promptly notify the owner, both verbally to permit immediate verification of the change, and in writing, as to the nature and extent of the differing conditions and that no claim by the contractor for any conditions differing from those anticipated in the plans and specifications and disclosed by the soil explorations will be allowed under the contract unless the contractor has so notified the owner both verbally and in writing, as required above, of such changed conditions. The owner will, in turn, promptly notify ECS of the existence of such unanticipated conditions and will authorize such further exploration as may be required to properly evaluate these conditions. Further, it is understood that any specific recommendations made in this report as to on-site construction review by ECS will be authorized and funds and facilities for such review will be provided at the times recommended if we are to be held responsible for the design recommendations. APPENDIX E PROCEDURES REGARDING FIELD LOGS, LABORATORY TESTING AND SAMPLES In the process of obtaining and testing samples and preparing this report, procedures are followed that represent reasonable and accepted practice in the field of soil and foundation engineering. Specifically, field logs are prepared during performance of the drilling and sampling operations, which are intended to portray, in the driller's judgment: field occurrences, sampling locations, and other information. Samples obtained in the field are frequently subjected to testing and reclassification in the laboratory by more experienced soil engineers, and differences between the field logs and the final logs exist. The engineer preparing the report reviews the field logs, lab classifications, and test data. Using his judgment in interpreting this data, he may make further changes. Samples taken in the field are retained in our laboratory for sixty days and are then discarded, unless special disposition is requested by our client. Samples retained over a long period of time, even if sealed in jars, are subject to moisture loss which changes the apparent strength of cohesive soil generally increasing the strength from what was originally encountered in the field. Since they are then no longer representative of the moisture conditions initially encountered, an inspection of these samples should recognize this factor. Important Information About Your Geotechnical Engineering Report -. Subsurface problems are a principal cause of construction delays, cost overruns, claims, and disputes The following information is provided to help you manage your risks. Geotechnical Services Are Performed for • elevation,configuration,location,orientation,or weight of the Specific Purposes, Persons, and Projects proposed structure, Geotechnical engineers structure their services to meet the specific needs of • composition of the design team,or their clients.A geotechnical engineering study conducted for a civil engineer • project ownership. may not fulfill the needs of a construction contractor or even another civil engineer.Because each geotechnical engineering study is unique,each geo- As a general rule, always inform your geotechnical engineer of project technical engineering report is unique,prepared solely for the client.No one changes - even minor ones - and request an assessment of their impact. except you should rely on your geotechnical engineering report without first Geotechnical engineers cannot accept responsibility or liability for problems conferring with the geotechnical engineer who prepared it.And no one-not that occur because their reports do not consider developments of which they even you-should apply the report for any purpose or project except the one were not informed. originally contemplated. Subsurface Conditions Can Change Read the Full Report A geotechnical engineering report is based on conditions that existed at the Serious problems have occurred because those relying on a geotechnical time the study was performed. Do not rely on a geotechnical engineering engineering report did not read it all. Do not rely on an executive summary. report whose adequacy may have been affected by:the passage of time; by Do not read selected elements only. man-made events,such as construction on or adjacent to the site;or by natu- ral events,such as floods,earthquakes,or groundwater fluctuations.Always A Geotechnical Engineering Report Is Based on contact the geotechnical engineer before applying the report to determine if it A Unique Set of Project-Specific Factors is still reliable.A minor amount of additional testing or analysis could prevent Geotechnical engineers consider a number of unique,project-specific factors major problems. when establishing the scope of a study. Typical factors include:the client's goals,objectives,and risk management preferences;the general nature of the Most Geotechnical Findings Are Professional structure involved, its size, and configuration; the location of the structure Opinions on the site;and other planned or existing site improvements,such as access Site exploration identifies subsurface conditions only at those points where roads,parking lots,and underground utilities.Unless the geotechnical engi- subsurface tests are conducted or samples are taken.Geotechnical engineers neer who conducted the study specifically indicates otherwise,do not rely on review field and laboratory data and then apply their professional judgment a geotechnical engineering report that was: to render an opinion about subsurface conditions throughout the site.Actual • not prepared for you, subsurface conditions may differ-sometimes significantly from those indi- • not prepared for your project, cated in your report.Retaining the geotechnical engineer who developed your • not prepared for the specific site explored,or report to provide construction observation is the most effective method of • completed before important project changes were made. managing the risks associated with unanticipated conditions. Typical changes that can erode the reliability of an existing geotechnical A Report's Recommendations Are Not Final engineering report include those that affect: Do not overrely on the construction recommendations included in your re- •the function of the proposed structure,as when it's changed from a port.Those recommendations are not final,because geotechnical engineers parking garage to an office building,or from alight industrial plant develop them principally from judgment and opinion.Geotechnical engineers to a refrigerated warehouse, can finalize their recommendations only by observing actual J subsurface conditions revealed during construction.The geotechnical engi- to disappointments, claims, and disputes. To help reduce the risk of such neer who developed your report cannot assume responsibility or liability for outcomes,geotechnical engineers commonly include a variety of explanatory the report's recommendations if that engineer does not perform construction provisions in their reports. Sometimes labeled "limitations" many of these observation. provisions indicate where geotechnical engineers' responsibilities begin and end,to help others recognize their own responsibilities and risks.Read A Geotechnical Engineering Report Is Subject to these provisions closely.Ask questions.Your geotechnical engineer should Misinterpretation respond fully and frankly. Other design team members' misinterpretation of geotechnical engineer- ing reports has resulted in costly problems. Lower that risk by having your Geoenvironmental Concerns Are Not Covered geotechnical engineer confer with appropriate members of the design team The equipment, techniques, and personnel used to perform a geoenviron- after submitting the report.Also retain your geotechnical engineer to review mental study differ significantly from those used to perform a geotechnical pertinent elements of the design team's plans and specifications.Contractors study.For that reason,a geotechnical engineering report does not usually re- can also misinterpret a geotechnical engineering report. Reduce that risk by late any geoenvironmental findings,conclusions,or recommendations;e.g., having your geotechnical engineer participate in prebid and preconstruction about the likelihood of encountering underground storage tanks or regulated conferences,and by providing construction observation. contaminants. Unanticipated environmental problems have led to numerous project failures. If you have not yet obtained your own geoenvironmental in- Do Not Redraw the Engineer's Logs formation,ask your geotechnical consultant for risk management guidance. Geotechnical engineers prepare final boring and testing logs based upon Do not rely on an environmental report prepared for someone else. their interpretation of field logs and laboratory data. To prevent errors or omissions, the logs included in a geotechnical engineering report should Obtain Professional Assistance To Deal with Mold never be redrawn for inclusion in architectural or other design drawings. Diverse strategies can be applied during building design,construction, op- Only photographic or electronic reproduction is acceptable, but recognize eration,and maintenance to prevent significant amounts of mold from grow- that separating logs from the report can elevate risk. ing on indoor surfaces.To be effective,all such strategies should be devised for the express purpose of mold prevention,integrated into a comprehensive Give Contractors a Complete Report and plan,and executed with diligent oversight by a professional mold prevention Guidance consultant. Because just a small amount of water or moisture can lead to Some owners and design professionals mistakenly believe they can make the development of severe mold infestations, a number of mold prevention contractors liable for unanticipated subsurface conditions by limiting what strategies focus on keeping building surfaces dry. While groundwater, wa- they provide for bid preparation.To help prevent costly problems,give con- ter infiltration, and similar issues may have been addressed as part of the tractors the complete geotechnical engineering report,but preface it with a geotechnical engineering study whose findings are conveyed in-this report, clearly written letter of transmittal.In that letter,advise contractors that the the geotechnical engineer in charge of this project is not a mold prevention report was not prepared for purposes of bid development and that the report's consultant; none of the services performed in connection with accuracy is limited;encourage them to confer with the geotechnical engineer the geotechnical engineer's study were designed or conducted who prepared the report(a modest fee may be required)and/or to conduct ad- for the purpose of mold prevention.Proper implementation of ditional study to obtain the specific types of information they need or prefer. the recommendations conveyed in this report will not of itself A prebid conference can also be valuable.Be sure contractors have sufficient be sufficient to prevent mold from growing in or on the struc- time to perform additional study.Only then might you be in a position to give ture involved. contractors the best information available to you,while requiring them to at least share some of the financial responsibilities stemming from unantici- Rely on Your ASFE-Member Geotechnical pated conditions. Engineer For Additional Assistance Membership in ASFE/The Best People on Earth exposes geotechnical engi- Read Responsibility Provisions Closely neers to a wide array of risk management techniques that can be of genuine Some clients,design professionals,and contractors do not recognize that benefit for everyone involved with a construction project. Confer with your geotechnical engineering is far less exact than other engineering disciplines. ASFE-member geotechnical engineer for more information. This lack of understanding has created unrealistic expectations that have led ASFE The Best People on Earth 8811 Colesville Road/Suite G106,Silver Spring, MD 20910 Telephone:'301/565-2733 Facsimile:301/589-2017 e-mail: info@asfe.org www.asfe.org Copyright 2004 by ASFE,Inc.Duplication,reproduction,or copying of this document,in whole or in part,by any means whatsoever,is strictly prohibited,except with ASFE's specific written permission.Excerpting,quoting,or otherwise extracting wording from this document is permitted only with the express written permission of ASFE,and only for purposes of scholarly research or book review.Only members of ASFE may use this document as a complement to or as an element of a geotechnical engineering report.Any other firm, individual,or other entity that so uses this document without being anASFE member could be committing negligent or intentional(fraudulent)misrepresentation. I IGER06045.OM High Density Commercial Subdivisions Deed Restrictions & Protective Convenances In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Management Regulations, deed restrictions and protective covenants are required for High Density Commercial Subdivisions where lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility. Deed restrictions and protective covenants are necessary to ensure that the development maintains a built-upon area consistent with the design criteria used to size the stormwater control facility. I NI V M 0 acknowledge, affirm and agree by my signature below, that I will cause the following deed restrictions and covenants to be recorded prior to the sale of any lot within the project known as 1`L- a l ci,c)._f --i-N N E y jr-m S 4 S S� rt o Y Nr 1. The following covenants are intended to ensure ongoing compliance with State Storm water Management Permit Number . as issued by the Division of Energy, Mineral and Land Resources under the Storm water Management Regulations. 2 The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the storm water management permit. 3. These covenants are to run with the land and be binding on all persons and parties claiming under them. 4. The covenants pertaining to storm water may not be altered or rescinded without the express written consent of the State of North Carolina. Division of Energy, Mineral and Land Resources. 5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the Division of Energy. Mineral and Land Resources. 6. The maximum allowable built-upon area per lot is square feet. *Note: If the BUA per lot varies, please substitute the following statement for the one above and provide a complete listing of the proposed BUA for each lot: The maximum built-upon area per lot, in square feet. is as listed below: Lot# BUA Lot# BUA Lot# BUA Lot # BUA 0479-49-2444 / 62.270 sf 0479-39-6179 / 88,730 sf This allotted amount includes any built-upon area constructed within the lot property boundaries, and that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area includes. but is not limited to. structures, asphalt, concrete, gravel. brick, stone, slate. coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools. 7. All runoff from the built-upon areas on the lot must drain into the permitted system. This may be accomplished through a variety of means including roof drain gutters which drain to the street, grading the lot to drain toward the street. or grading perimeter swales to collect the lot runoff and directing them into a component of the stormwater collection system_ Lots that will naturally drain into the system are not required to provide these additional measures. 8. The owner of each lot, whose ownership is not retained by the permittee. is required to submit a separate stormwater permit application to the Division of Energy. Mineral and Land Resources and receive a permit prior to construction. 9 The project and each lot will maintain a 30**foot wide vegetated buffer between all impervious areas and surface waters. **50 foot for projects located in the 20 coastal counties. Form DRPC-1 Rev.2 05Nov2009 Page I of High Density Commercial Subdivisions Deed Restrictions & Protective Convenances Signature: /Vnef kli4d,a/;f Date 8-, s �� S� a Notary Public in the State of 4)0(V\ � . County of `, ►J do hereby certify that .(b� _ cS personally appeared before me this the Fj day of Mk" , 20 . and acknowledge the due execution of the foregoing instrument \ itness my hand and official seal, SEAL 4,4 Si natu My Co fission expires Da / (�,4) `.`a���`(uH IR, AUS7;41'i, NQTAR Y E. 9 .,*„f,, COIU�N-11;010 ttttt Form DRPC-1 Rev.2 05Nov2009 Page 2 of 2 BK 11521 PG 0600 FILED ELECTRONICALLY CUMBERLAND COUNTY NC J. LEE WARREN, JR. FILED Jul 14, 2022 AT 12:18:11 PM BOOK 11521 START PAGE 0600 END PAGE 0603 INSTRUMENT # 28471 RECORDING $26.00 EXCISE TAX $0.00 submitted electronically by "Eric west, Attorney at Law, PLLC" in compliance with North Carolina statutes governing recordable documents and the terms of the submitter agreement with the Cumberland County Register of Deeds. Revenue: $ 0.00 Prepared By&Return to: Eric West, Attorney at Law, PLLC; 500 N. Walnut Street, Lumberton,NC 28358 (**No Title Certification Given) DEED OF CORRECTION STATE OF NORTH CAROLINA COUNTY OF CUMBERLAND Parcel Nos.: 0479-39-6/79 (Tract One) and 0479-49-2444 (Tract Two) This Deed, made and entered into this day of July, 2022 by and between Atkinson 58 Inc. (a North Carolina corporation) — 2203 N. Rowland Avenue, Lumberton, NC 28358 ("Grantor"); and Venus Plaza JCE, LLC (a North Carolina limited liability company) ("Grantee"); whose address is: 3oi North Pine Street, Lumberton, NC 28358. WITNESSETH: That whereas, said Grantor heretofore executed to Grantee a certain deed dated October 24, 20i8, which was recorded in Deed Book 1.0403, Page 52; and whereas, said Grantor also heretofore executed to Grantee a certain correction deed dated November 13, 20i8, which was recorded in Deed Book 10405, Page 450 for the properties, and whereas, by mutual mistake said deeds contained some errors in the legal descriptions of the properties; and whereas, said Grantee has requested said Grantor to correct said errors and said Grantor has agreed to do so; and whereas, the Grantor now executes this deed in order to correct said errors; 1 BK 11521 PG 0601 Now, therefore, said Grantor, for the purpose of correcting said errors and in consideration of the sum of One Dollar, to them in hand paid, have bargained and sold and by these presents do grant, bargain, sell, and convey unto said Grantee and their heirs and assigns a certain tract or parcel of land lying and being in Cumberland County, North Carolina, in Eastover Township and more particularly described as follows: TRACT ONE: (Parcel Number: 0479-39-6179) All of that certain tract or parcel of land situated in Eastover Township, Cumberland County, North Carolina which is more particularly described as follows: All of Tract One (1) as the same is shown on a map entitled "Recombination Survey for Venus Plaza JCE, LLC" which was prepared by Terry C. Faircloth, P. L. S., dated February 15, 2019 and recorded in Map Book 142, Page 67 in the office of the Register of Deeds of Cumberland County. Reference to said map is hereby made and incorporated herein for a more complete and accurate description of said tract of land. TRACT TWO: (Parcel Number: 0479-49-2444) All of that certain tract or parcel of land situated in Eastover Township, Cumberland County, North Carolina which is more particularly described as follows: All of Tract Two (2) as the same is shown on a map entitled "Recombination Survey for Venus Plaza JCE, LLC which was prepared by Terry C. Faircloth, P.L.S., dated February 15, 2019 and recorded in Map Book 142, Page 67 in the office of the Register of Deeds of Cumberland County. Reference to said map is hereby made and incorporated herein for a more complete and accurate description of said tract of land. Tract Two is conveyed subject to that certain Deed of Trust to M. J. Huggins, III Trustee for Crescom Bank as beneficiary filed on July 20, 2019 in Book 10525, Page 23o, that Assignment of Rents to CresCom Bank filed on July 20, 2019 in Book 10525, Page 424, that UCC Financing Statement filed on July 20, 2019 in Book 10525, Page 249, and that Deed of Trust to M. J. Huggins, III as Trustee for United Bank as beneficiary filed on December 17, 2021 in Book 11342, Page 691, all filed in the Cumberland County Registry. Both tracts herein conveyed are conveyed subject to any easements, right of ways or restrictions of record. 2 BK 11521 PG 0602 The Grantor herein was dissolved by the board of directors and shareholders on October, 9, 2019 by the filing of a dissolution with the North Carolina Secretary of State, the Vice President of the Corporation, Nirav Modi, is authorized to execute this deed as part of the winding up of the affairs of the corporation. To have and to hold said land, together with all privileges and appurtenances thereunto belonging to them the said Grantee and their heirs and assigns in fee simple forever. And said Grantors covenant that they are seized of said land in fee and have the right to convey the same in fee simple; that the same is free and clear of all encumbrances; and that they will warrant and defend the title herein conveyed against the lawful claims of all persons whomsoever. In Testimony Whereof, said parties have hereunto set their hands and seals the day and year first above written. Atkinson 58 Inc. A'a4By: (SEAL) Ni i —Vice President STATE OF NORTH CAROLINA COUNTY OF ROBESON I, D@VD\ %,ckqPS , Notary Public for the County and State aforesaid do hereby ceYtify that Nirav Modi, personally known to me and personally appeared before me this day and acknowledged that he is the Vice President of Atkinson 58 Inc., a North Carolina corporation, and that by authority duly given and as the act of such entity, he signed the foregoing instrument in its name and on its behalf as its act and deed. Witness my hand and official seal this the I Lot, day of July, 2022. `0g00010001000100,°°vB A irk 0 D 40 °'lion a A\ft Jb4 �pIAFtY /^`O'n SC( eo o U e Notary Public �®•°•�9U g2+9Oryy�vae p ••°.°. 'v,�e,< My Commission Expires: 3 0)2Z/2o25 N C� 3 BK 11521 PG 0603 Venus Plaza JCE, LLC By: /1// (SEAL) Nir i — anager STATE OF NORTH CAROLINA COUNTY OF ROBESON I, D \(On \A, PS , Notary Public for the County and State aforesaid do hereby certy that Nirav Modi, personally known to me and personally appeared before me this day and acknowledged that they is the Manager of Venue Plaza JCE, LLC, a North Carolina limited liability company, and that by authority duly given and as the act of such entity, he signed the foregoing instrument in its name and on its behalf as its act and deed. t ` Witness my hand and official seal this the I`t day of July, 2022. Boa®®aeaaveoroeaoyaa' CtAkY), ITC& :`�`� a%`° o% Notary Public ® 5° �oN ,01PRY CI ° � PUB1/4"\G Z. My Commission Expires: 0 e t 2212025 ‘.'.a-P®�'g4�US12Z ���om i 4 c. 1Crt.3 � � DEMLR USE ONLY Date Received Fee Paid Permit Number Applicable Rules: ❑Coastal SW- 1995 ❑Coastal SW-2008 ❑Ph II-Post Construction (select all that apply) ❑Non-Coastal SW-HQW/ORW Waters ❑Universal Stormwater Management Plan ❑Other WQ Mgmt Plan: State of North Carolina Department of Environment and Natural Resources Division of Energy, Mineral and Land Resources STORM WATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Project Name(subdivision,facility,or establishment name-should be consistent with project name on plans, specifications,letters,operation and maintenance agreements,etc.): HIES EASTOVER-HOLIDAY INN EXPRESS Sr SUITES 2. Location of Project(street address): PEMBROKE ROAD City:EASTOVER County:CUMBERLAND Zip:28312 3. Directions to project(from nearest major intersection): EXIT 58 OFF OF I-95,ONTO NC HWY 1.3-GOLDSBORO ROAD.TAKE A RIGHT(SOUTH)ON PEMBROKE ROAD 4. Latitude:35°07' 17" N Longitude:-78°45' 16"W of the main entrance to the project. II. PERMIT INFORMATION: 1.a.Specify whether project is (check one): /1 New ['Modification ❑Renewal w/ Modificationt tRenewals with modifications also requires SWU-102-Renewal Application Form b.If this application is being submitted as the result of a modification to an existing permit,list the existing permit number , its issue date(if known) ,and the status of construction: ❑Not Started ['Partially Completed* ❑ Completed* *provide a designer's certification 2. Specify the type of project(check one): ELow Density ►1High Density ['Drains to an Offsite Stormwater System ['Other 3. If this application is being submitted as the result of a previously returned application or a letter from DEMLR requesting a state stormwater management permit application,list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4.a.Additional Project Requirements (check applicable blanks;information on required state permits can he obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ®Sedimentation/Erosion Control: 2-, 0 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name,Project/Permit Number, issue date and the type of each permit:CUMBE-2016-173 EROSION CONTROL 5. 15 the project located within 5 milca of ca public airport? No ❑YCS If yes,see S.L.2012-200, Part VI:http://portal.ncdenr.org/web/tr/rules-and-regulations Form SWU-101 Version Oct. 31. 2013 Page 1 of 6 III. CONTACT INFORMATION 1.a.Print Applicant/ Signing Official's name and title(specifically the developer,property owner,lessee, designated government official,individual,etc.who owns the project): Applicant/Organization:VENUS PLAZA JCE,LLC(ALSO KNOWN AS FRESHFOODS) Signing Official&Title:NIRAV MODI b.Contact information for person listed in item la above: Street Address:301 NORTH PINE STREET City:LUMBERTON State:NC Zip:28358 Mailing Address(if applicable): City: State: Zip: Phone: (773 ) 691-5137 Fax: ( ) Email:NICK@FRESHFOODS.US c.Please check the appropriate box.The applicant listed above is: ®The property owner(Skip to Contact Information,item 3a) ❑ Lessee*(Attach a copy of the lease agreement and complete Contact Information,item 2a and 2b below) ❑Purchaser*(Attach a copy of the pending sales agreement and complete Contact Information,item 2a and 2b below) ❑ Developer*(Complete Contact Information,item 2a and 2b below.) 2.a.Print Property Owner's name and title below,if you are the lessee,purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official&Title: b.Contact information for person listed in item 2a above: Street Address: City: State: Zip: Mailing Address(if applicable): City: State: Zip: Phone: ( ) Fax: ( ) Email: 3.a. (Optional)Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official&Title: b.Contact information for person listed in item 3a above: Mailing Address: City: State: Zip: Phone: ( ) Fax: ( ) Email: 4. Local jurisdiction for building permits:CUMBERLAND COUNTY Point of Contact:TOEL SCHULT Phone#: (910 ) 321-6655 Form SWU-101 Version Oct. 31,2013 Page 2 of 6 IV. PROJECT INFORMATION 1. In the space provided below,briefly summarize how the stormwater runoff will be treated. RUNOFF IS COLLECTED IN A SYSTEM OF CATCH BASINS AND STORM PIPING.RUNOFF IS THEN SENT TO A PROPOSED STORMWATER WETLAND 2.a.If claiming vested rights,identify the supporting documents provided and the date they were approved: n Approval of a Site Specific Development Plan or PUD Approval Date: ❑Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights,identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW-1995 ❑Ph II-Post Construction 3. Stormwater runoff from this project drains to the CAPE FEAR River basin. 4. Total Property Area:6.55 acres 5. Total Coastal Wetlands Area:0 acres 6. Total Surface Water Area:0.298 acres 7. Total Property Area(4)-Total Coastal Wetlands Area(5) -Total Surface Water Area(6) =Total Project Area+:6.52 acres + Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water(NEIW)line or Mean High Water (MIIW) line,and coastal wetlands landward from the NI-W(or MHW) line. The resultant project area is used to calculate overall percent built upon area(BUA). Non-coastal wetlands landward of the NHW(or MI-W)line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area/ Total Project Area)X 100 =53.17 9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project,attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area Drainage Area �Drainage Area_ Drainage Area Receiving Stream Name BAKER SWAMP Stream Class * C Stream Index Number* 18-28-2-2 Total Drainage Area(sf) 187,582 On-site Drainage Area(sf) 187,582 Off-site Drainage Area(sf) Proposed Impervious Area**(sf) 174,894 % Impervious Area**(total) 93.20 Impervious**Surface Area Drainage Area_ Drainage Area_ Drainage Area_ Drainage Area On-site Buildings/Lots (sf) 22,940 On-site Streets (sf) On-site Parking (sf) 151,954 On-site Sidewalks (sf) Other on-site (sf) Future(sf) Off-site (sf) Existing BUA***(sf) Total (sf): 174,894 * Stream Class and Index Number can be determined at: http://portal.ncdenr.org/web/wq/ps/csu/classifications ** Impervious area is defined as the built upon area including, but not limited to, buildings, roads,parking areas, sidewalks,gravel areas, etc. Form SWU-101 Version Oct. 31,2013 Page 3 of 6 ***Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that is to be removed and which will be replaced In/new BUA. 11. How was the off-site impervious area listed above determined?Provide documentation. NA Projects in Union Counts: Contact DEMLR Central Office staij-to check if the project is located within a Threatened& Endangered Species watershed that nut}'he subject to more stringent stormwater requirements as per 15.4 NC I C(12B.0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance(O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://portal.ncdenr.org/web/wq(ws/su/bmp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs. The complete application package should be submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package fromhttp://portal.ncdenr.org/web/wq/ws/su/statesw/forms docs. 'als 1. Original and one copy of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions&Protective Covenants r� Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed,signed and dated)and O&M agreement(s)for each BMP. 4. Permit application processing fee of$505 payable to NCDENR. (For an Express review,refer to http://www.envhelp.org/pages/onestopexpress.html for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 3. A detailed narrative(one to two pages)describing the stormwater treatment/management for 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains to class SA waters within i mile of the site boundary, include the 1 mile radius on the map. 7. Sealed,signed and dated calculations(one copy). 8. Two sets of plans folded to 8.3"x 14" (sealed,signed,&dated),including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. identity all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers,the MHW or NHW line of tidal waters,and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers,and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings&distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours,spot elevations, finished floor elevations. 1. Details of roads, drainage features,collection systems, and stormwater control measures. m. wetlands delineated,or a note on tie plans mat none exist. !must be ttelLneatet by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage(including off-site),drainage easements,pipe sizes,runoff calculations. o. Drainage areas delineated (included in the main set of plans,not as a separate document). Form SWU-101 Version Oct. 31.2013 Page 4 of 6 p. Vegetated buffers(where required). 9. Copy of any applicable soils report with the associated SHWT elevations(Please identify elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"x11 copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type,expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO:Schedule a site visit for DEMLR to verify the SHWT prior to submittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: /Ict I Page No: 060 0 11. For corporations and limited liability corporations(LLC): Provide documentation from the NC Secretary of State or other official documentation,which supports the titles and positions held by the persons listed in Contact Information,item la,2a,and/or 3a per 15A NCAC 2H.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State,otherwise the application will be returned. http://www.secretary.state.nc.us/Corporations/CSearch.aspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions,outparcels,and future development,the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary,a table listing each lot number,lot size, and the allowable built-upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org/web/lr/state- stormwater-forms docs. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s)below,the permit holder(s) certify that the recorded property restrictions and protective covenants for this project,if required,shall include all the items required in the permit and listed on the forms available on the website,that the covenants will be binding on all parties and persons claiming under them,that they will run with the land,that the required covenants cannot be changed or deleted without concurrence from the NC DEMLR,and that they will be recorded prior to the sale of any lot. VIII. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm(such as a consulting engineer and/or firm)so that they may provide information on your behalf for this project(such as addressing requests for additional information). Consulting Engineer: WILL IAA I, C L,AW°kJ Consulting Firm: G La i) Et14,4 Qltllk Mailing Address: Po jl•x 2 3r1 State: N� Zip:k�r�lwn Y p: 29603 Phone: ( 2 b ) 1st-- 31r6 Fax: ( 'P Email: fitck y e al plieA ' >C•1�,wGWra IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out,complete this -;e lion) I,(print or type name of person listed in Contact Information, item 2a) ,certify that I own the property identified in this permit application, and thus give permission to(print or type name of person listed in Contact Information, item 1a) with (print or type name of organization listed in Contact Information, item la) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal,which indicates the party responsible for the operation and maintenance of the stormwater system. Form SWU-I01 Version Oct. 31.2013 Page 5 of 6 As the legal property owner I acknowledge,understand,and agree by my signature below,that if my designated agent(entity listed in Contact Information,item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale,responsibility for compliance with the DEMLR Stormwater permit reverts back to me,the property owner. As the property owner,it is my responsibility to notify DEMLR immediately and submit a completed Name/Ownership Change Form within 30 days;otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to S25,000 per day,pursuant to NCGS 143-215.6. Signature: __ Date: I, ,a Notary Public for the State of ,County of , do hereby certify that _ personally appeared before me this day of , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, _ SEAL My commission expires X. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information,item la) _ certify that the information included on this permit application form is, to the best of my knowledge,correct and that the project will be constructed in conformance with the approved plans,that the required deed restrictions and protective covenants will be recorded,and that the proposed project complies with the requirements of the applicable stormwater rules under 15A NCAC 2H .1 00 and any other applicable state stormwater requirements. 1 Signature: t f Date: * f.2 I, ,a Notary Public for the State of iDAln �11�1IrP.. County of l_,,,1.= , do herebycertifythat ,`roo Z1n personallyappeared Y'� N 1 r W PP before me this_f rday of _ o204,and acknowledge the due execution of the application for a stormwater permit. Witness my and and official seal, SEAL 1.10 ,,yAUBLIC a 2, tollaUS G. My commission expires 1 ,4'oononnnun„ Form SWU-10] Version Oct.31.2013 Page 6 of 6 Operation & Maintenance Agreement Project Name: HIES - EASTOVER (HOLIDAY INN EXPRESS & SUITES) Project Location: PEMBROKE ROAD, EASTOVER, NC Cover Page Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location. Any deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s). The SCM(s) on this project include(check all that apply &corresponding O&M sheets will be added automatically): Infiltration Basin Quantity: Location(s): Infiltration Trench Quantity: Location(s): Bioretention Cell Quantity: Location(s): Wet Pond Quantity: Location(s): Stormwater Wetland Quantity: 1 Location(s): southwest corner Permeable Pavement Quantity: Location(s): Sand Filter Quantity: Location(s): Rainwater Harvesting Quantity: Location(s): Green Roof Quantity: Location(s): Level Spreader- Filter Strip Quantity: Location(s): Proprietary System Quantity: Location(s): Treatment Swale Quantity: Location(s): Dry Pond Quantity: Location(s): Disconnected Impervious Surface Present: No Location(s): User Defined SCM Present: No Location(s): _ Low Density Present: No Type: CLICK TO UPDATE O&M MANUAL I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to the system or responsible party. Responsible Party: NIRAV MODI Title &Organization: OWNER-VENUS PLAZA JCE, LLC - FRESH FOODS Street address: 301 NORTH PINE STREET City, state, zip: LUMBERTON, NC 28358 Phone number(s): 773-691-5137 Email: NICK@FRESHFOODS.US Signatur : Date: A laa1 L L1 I, C l In , a Notary Public for the State of N C County of ( ` , do hereby cert fy that N\YO'V Mod► I personally appeared before me this (J day of =eb 909)4 and acknowledge the due execution of Op r tions and M tenan a Agreement . Witness my hand and official seal, l� ASHLEY BRITT NOTARY DUBLIC Robeson County North Carolina My Commission Expires July 8. 2026 Seal My commission expires 314 $` (4l p STORM-EZ 2/22/2024 Version 1.5 O&M Agreement Page 1 of 1 Red triangles at the upper right hand corner indicate design comments Please complete the yellow shaded items. OF v4 A T6-6, AIC.1011;11raisA NCDENR p STORMWATER MANAGEMENT PERMfT APPLICATION FORM 401 CERIThICATION APPLICATION FORM WETLAND SUPPLEIVENT 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. L PROJECT INFORMATION Project name IIIES EASTOVER Contact name WILLIAMCLAYION,PE Phone number 828-455-3456 Date Drainage area number 1 IL DESIGN INFORMATION Site Characteristics Drainage area 187,582.00 ft2 Impervious area 174,894.00 ft2 Percent impervious 93.2%% Design rainfall depth 1.00 inch Peak Flow Calculations 1-yr,24-hr rainfall depth 3.02 in 1-yr,24-hr intensity 0.13 in/hr Pm-development 1-yr,24-hr runoff 0.39 ft3/sec Post-development 1-yr,24-hr runoff 0.53 ft3/sec Pre/Post 1-yr,24-hrpeakcontrol 0.14 ft3/sec Storage Volume: Non-SA Waters Mnimum required volume 13,114.00 ft3 Volume provided(temporary pool volume) 15,000.00 ft3 OK Storage Volume: SA Waters Parameters 1.5"runoff volume ft3 Pre-development 1-yr,24-hr runoffvolume ft3 Post-development 1-yr,24-hr runoff volume ft3 Minimum volume required ft3 Volume provided ft3 Outlet Design Depth of temporarypool/ponding depth Paints) 12.00 in OK Drawdown time 2.70 days OK Diameter of orifice 2.00 in OK Coefficient of discharge(CD)used in orifice diameter calculation 0.60(unitless) Driving head(H.)used in the orifice diameter calculation 0.33 ft Provide calculations to support this driving head. Form SW401-Wetland-Rev.6-11/16/09 Parts I and II.Project Design Summary,Page 1 of 3 Surface Areas of Wetland Zones Surface Area of Entire Wetland 15,000.00$2 OK Shallow Land 5,000.00$2 OK The shallow land percentage is: 33%% Shallow Water 6,000.00$2 OK The shallow water percentage is: 40%% Deep Pool Forebay portion of deep pool(pretreatment) 1,500.00$2 OK The farebay surface area percentage is: 10%% Non-forebay portion of deep pool 1,500.00$2 OK The non-forebay deep pool surface area percentage is: 10%% Total of wetland zone areas 14,000.00$2 Enter data into the shaded cells in this section. Add or subtract the following area from the zones -1,000.00$2 Topographic Zone Elevations Temporary Pool Elevation(TPE) Shallow Land(top) 127.50 It amsl Permanent Pool Elevation(PPE) Shallow Water/Deep Pool(top) 127.50 It amsl Shallow Water bottom 127.00 It amsl Nbst shallow point of deep pool's bottom 125.00 ft amsl Deepest point of deep pool's bottom 125.00 it amsl Design must meet one of the following two options: This design meets Option#1, Top of PPE is within 6"of SHWT,Ifyes: (YorN) SHWT(Seasonally High Water Table) 124.80$amsl OK This design meets Option#2, Wetland has liner with pemneabllity<0.01 in/hr,Ifyes: (YorN) Depth of topsoil above impermeable liner in Topographic Zone Depths Temporary Pool Shallow Land 0.00 in Permanent Pool Shallow Water 6.00 in OK Deep Pool(shallowest) 30.00 in OK Deep Pool(deepest) 30.00 in OK Planting Plan Are cattails included in the planting plan? N (Y or N) OK Number ofPlants recommended in Shallow Water Area: Herbaceous(4+cubic-inch container) 1,500 Number of Plants recommended in Shallow Land Area: Herbaceous(4+cubic-inch container),OR 1,250 Shrubs(1 gallon or larger),OR 200 Trees(3 gallon or larger)and Herbaceous(4+cubic-inch) 25 and 1,000 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 Crass-like Herbaceous(4+cubic-inch) Form SW401-Wetland-Rev.6-11/16/09 Parts I and II.Project Design Summary,Page 2 of 3 Additional Information Can the design volume be contained? Y (YorN) OK Does project drain to SAwaters? Ifyes, N (YorN) Excess volume roast pass through filter. What is the length ofthe vegetated filter? ft Are calculations for supporting the design volume provided in the Y (YorN) OK application? Is BMP sized to handle all runoff from ultimate build-out? Y (YorN) OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right ofWay(ROW)? (YorN) OK The length to width ratio is: 1.78 :1 OK Approximate wetland length 160.00 ft Approximate wetland width 90.00 ft Approximate surface area using length and width provided 14,400.00 ft2 This approx.surface area is within this number of square feet ofthe entire wetland surface area reported above: Will the wetland be stabilized within 14 days of construction? Y (YorN) OK Form SW401-Wetland-Rev.6-11/16/09 Parts I and II.Project Design Summary,Page 3 of 3 SUPPLEMENT-EZ COVER PAGE FORMS LOADED PROJECT INFORMATION 1 IProject Name HIES EASTOVER 2 I Project Area(ac) _ 6.557 _ 3 'Coastal Wetland Area(ac) 0 4 Surface Water Area(ac) _ {{ 0 5 Is this project High or Low Density? — High _ 6 Does this project use an off-site SCM? No ICOMPLIANCE WITH 02H.1003(4) 7 iWdth of vegetated setbacks provided(feet) 8 WII the vegetated setback remain vegetated? 9 If BUA is proposed in the setback,does it meet NCAC 02H 1003(4)1cd)? _ 10 I Is streambank stabilization proposed on this project? NUMBER AND TYPE OF SCMs: 11 Infiltration System 12 Bioretention Cell .._ _ _ _ 13 Wet Pond — 14 Stormwater Wetland 1 _ _ _ 15 Permeable Pavement 16 Sand Filter _ _ — 17 Rainwater Harvesting(RWH) 18 1 Green Roof 19 Level Spreader-Filter Strip(LS-FS) _ __, _ 20 Disconnected Impervious Surface(DIS) 21 Treatment Swale 22 ,Dry Pond _ 23 StormFilter 24 Silva Cell —_ 25 Bayfilter _ �. 26 Filterra FORMS LOADED DESIGNER CERTIFICATION 27 Name and Title: _ WILLIAM S CLAYTON,PE 28 Organization: CLAYTON ENGINEERING&DESIGN 29 Street address: _ _ 1209 9TH AVE NE 30 ICity,State,Zip: HICKORY.NC 28601 31 Phone number(s): I 828-455-3456 32 !Email: WCLAYTON@CLAYTON-ENGINEERING.NET Certification Statement I certify,under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision that the information provided in the form is,to the best of my knowledge and belief,true,accurate,and complete and that the engineering plans, specifications,operation and maintenance agreements and other supporting information are consistent with the information provided here. Designer \ Cr A, 0 // .� -7 • SE L r; •_ Signature of esigner 040758 - Seal Date DRAINAGE AREAS 1 Is this a high density project? _ Yes 2 If so,number of drainage areas/SCMs _ 1 _ 3 Does this project have low density areas? i _ No 4 If so,number of low density drainage areas 0 Is all/part of this project subject to previous rule 5 versions? _ NO FORMS LOADED DRAINAGE AREA INFORMATION Entire Site 1 STORMWATER 4 Type of SCM WETLAND 5 Total drainage area(sq ft) 301243 187582 6 I Onsite drainage area(sq ft) 285622 _ _ 171961 7 I Offsite drainage area(sq ft) 15621 15621 8 1Total BUA in project(Sq ft) 174954 sf 174894 sf 1 New BUA on subdivided lots(subject to 9 permitting)(sq ft) New BUA not on subdivided lots(subject to 10 permittingZg 11 lOffsite BUA(sq ft) 12 Breakdown of new BUA not on subdivided lots: -Parking(sq ft) 116402 sf �_.116402 sf -Sidewalk(sq ft) 6225 sf 6225 sf 1 -Roof(sq ft) 22940 sf 22940 sf -Roadway(sq ft) 29327 sf 29327 sf 1 -Future(sq ft) -Other,please specify in the comment box below(sq ft) 60 sf New infiltrating permeable pavement on 13 subdivided lots(sq ft) New infiltrating permeable pavement not on 14 subdivided lots(sq ft) Existing BUA that will remain(not subject to 15 permitting)(sq ft) 16 !Existing BUA that is already permitted(sq ft) 17 Existing BUA that will be removed(sq ft) 18 1Percent BUA 58% 94% 19 !Design storm(inches) 1.0 in 20 !Design volume of SCM(cu ft) _ 15000 cf 21 Calculation method for design volume SIMPLE ADDITIONAL INFORMATION 'Please use this space to provide any additional information about the 22 drainage area(s): Impervious area of signs(60 sf)that doesn't drain into wetland offset by offsite impervious area in ROW(15,621 sf)that drains into the wetland. STORMWATER WETLAND _ 1 1 Draitl8ge wee number 1 __ 2 Minimum required treatment volume tcu ft) 13114 d GENERAL MDC FROM 02H.3050 3 Is the SCM sized to treat the SW from all surfaces at build-out? Yes 4 Is the SCM located away from contaminated soils? Yes 5 What are the side slopes of the SCM(HIV)? - 3:1 6 Does the SCM hove retaining walls,gabion walls or other Yes engineered side slopes? 7 Are the inlets,outlets,and receiving stream protected from erosion Yes (t 0-year storm)? Is there an overflow or bypass for inflow volume in excess of the Yes a design volume? - 9,What Is the method for dewatering the SCM for maintenance? -Pump(preferred). 10111 applicable,will the SCM be cleaned out after construetwn' Yes _ 11 Does the maintenance access comply with General MOC(13)? Yes 12 Does the drainage easement comply with General MDC(9)? Yes If the SCM is on a single family lot does(will?)the plat comply with N/A 13General MDC(1l)? 14 Is there an O&M Agreement that complies with General MDC(11)? I Yes 15,Is there an O&M Plan that complies with General MDC(12)? Yes 16:Does the SCM follow the device selfic MDC? _Yes 17 Was the SCM designed by an NC licensed professional? Yes ;TORMWATER WOUND MOC FROM 0214.1054 18 Design volume of SCM(cu ft) I 15000 19 Are the inlet(s)and outlet located in a manner that avoids Von- Yes circuiting? 20 Are berrns or baffles provided to improve the flow path? Yes 21 Does the orifice drawdown from below the top surface of the Yes permanent pool? Does the wetland mi smize impacts to the receiving channel from the Yes 221-yr.24-hrstorm? 23 Is a trash rack or other device provided to protect the outlet system? Yes Elevations 24 Elevation,peak attenuation above temporary pool(if applicable) I 129.00 ,(finsl) Elevation,temporary pool(top of the temporary inundation zone) 128 75 25((mill) 26 Elevation,permanent pool(top of the shallow water zone)(fmsl) 127 50 27 Elevation,bottom of shallow water zone(msl) 127.00_ 28'Elevation.bottom of forebay deep pool at deepest point(at forebay 125 00 entrance)jfmgl)_ 29'Elevation,bottom of forebay deep pool at shallowest point(at 127 50 (forebay exit)(final) 30 Elevation,bottom of non-forebay deep pool at deepest point(fmsl) I 125 00 plant/ng Zones 31 lAres'total surface area of the SW wetland at temporary pool elm, 12.000,00 ft 32Area,temporary inundation zone at temporary pool elev (sq ft) 8,079.00 33,Area,shallow water zone at temporary pool elev_tsq ft) 4,283.00 - 34'Area.forebay at temporary pool elev.(sq ft) _ 1.120 00 35 Area,non-forebay deep pool at temporary pool elev (sq ft) 601 00 Percent area provided,temporary inundation zone(should be 30- 67% 36', 37 Percent area provided.shallow water zone(should be 35-45%) 36% 381 Percent area provided,deep pool(forebay)(should be 10-1590 9% 39 Percent area provided,deep pool(non-forebay)(should be 5-15%) 5% Depths and Outlet 40 Peak attenuation depth above temporary inundation zone(inches) 18 in 41 Temporary inundation zone depth(temporary pool to permanent 15 in of Inches _ 42 Shallow water zone depth(permanent pool to bottom of wetland) 6 in (inches) 43'Depth,forebay at entrance(permanent pool to bottom of forebay 30 in entrance)(inches) 44 Depth,forebay at exit(permanent pool to bottom of fohebey exit) 30 in 45'Depth non-forebay deep pools(permanent pool to deep pool 30 in bottom)(inches.] 4E01 there is an orifice.diameter(inches) _ 2 in 47'If there is a weir.weir height(millet) 18 in 49 If there ie a weir,weir length(inches) 192 in 49 Drawdown time for the temporary pool(daysi 2.7 Wetland 3 2:36 PM 6/25/2024 STORMWATER WETLAND Soil and Plants- 50'Soil amendment depth(inches) _ _ _}t _ _ 51 Has a soil amendment specification been provided? , No 52.Has a landscaping plan that meets SW Wetland MDC(12)been Yes provided' 53 Number of plants per 200 square feet(#)in the shallow water zone: 54 Does the temporary inundation zone planting comply with SW Y es Wetland MDC(IA? _ . 55 Are the dam structure and temporary fill slopes planted in non- Yes clumpng turfgrass? _ 56 Will cattails be planted in the wetland? No ADDITIONAL INFORMATION Please use this space to provide any additional information about 57 the stormwater wetland(s): Wetland 4 2:36 PM 6/25/2024 BMP Sizing Data Id XX.XX Required user input data XX.XX Calculations Post Developed Basin Data Pre-Developed Basin Data Drainage Area= _ 4.300 ac Drainage Area= 4.300 ac Impervious% (I)= 93.256 % Impervious% (I)= 23.256 % Impervious acres= 4.010 ac Impervious acres= 1.000 ac Curve Number(CN)= 89.000 Curve Number(CN)= 75.000 Tc= 5.000 minutes= 0.083 hours Tc= 14.000 minutes= 0.233 hours T lag = 3.000 minutes= 0.050 hours T lag = 8.400 minutes= 0.140 hours Water Quality Volume Calculations Channel Protection Volume Calculations Rv=0.05+0.009(1)= 0.889 Q=(P-0.2S)^2/(P+0.8S)= 1.525 inches WQv= 1.0RvA/12= 0.319 ac-ft S= 1000/CN-10= 1.236 WQv= 1.0Rv= 0.889 inches CPv = 0.546 acre-ft Modified CN = 99.010 STORM WATER 4.3.7 Design Procedure Form Design Procedure Form:Storm Water Wetland WETLAND FEASIBILITY NOTES: 1 Is the use of a storm water wetland appropriate? 2 Confirm other design criteria and applicability. Pollutant Removal Effectiveness Required Standard PRELIMINARY HYDROLOGIC CALCULATIONS 3 Compute site hydrologic input parameters Development Conditions Pre-developed Post-developed Area 4.3 acres 4.3 acres CN(SCS curve number) 75 89 Adjusted CN(curve number adjusted for 1-inch storm) 99.01 Time of concentration 14 min 5 min 0.23 hours 0.08 hours 4 Compute,WQ„water quality volume requirements Compute Runoff Coefficient, R„ R„= 0.89 Compute WQ„Volume requirements WQv= 0.319 acre-ft 5 Compute WQP peak flow using SCS WQp= 0.53 cfs Compute modified SCS curve number CN= 99.01 6 Compute CPv Compute S(maximum retention) S= 1.24 Compute 1-yr,24-hr total rainfall depth Rainfall Depth= 2.58 inches Compute Qd(runoff volume) Qd= 1.52 inches Compute CPv(chnnnel protection volume) CPv= 0.55 acre-ft Estimate t,(time of concentration) t,= 0.08 hours Compute approximate storage volume CPv Storage volume= 0.29 acre-ft 7 Compute release rates Compute WQv release rate Release Rate= 0.076 cfs Time for CPv to be released(must be between 60-132 hrs) CPv Dt= 60 hrs Compute CP„release rate Release Rate= 0.110 cfs STORM WATER DETENTION BASIN DESIGN 8 Volpfe=Acres of Impervious Area(0.2")(1"/12") WQpre= 0.067 acre-ft 9 Allocate permanent pool and temporary pool storage WQv(storage vol.)= 0.34 at elev. volumes based on design requirements. CPv(storage vol.) = 0.2 at elev. 10 Allocate the shallow land,shallow water,and deep pool zones. Areashallow land >0.30(BMP area @WQv elevation) Areasnallow land= 4000.0000 Areashallow water >0.38(BMP area @WQv elevation) Areasnallowwater = 5000 Areadeep Pool >0.15(BMP area @WQv elevation) Areadeep pool = STORM WATER Elevation Area Average Depth Incremental Volume Cumulative Volume Area Volume above Permanent Pool MSL (acres) (acres) (ft) (acre-ft) (acre-ft) (acre-ft) 12 WQv Orifice Computations Average ED release rate Release Rate= 0.39 cfs Average head,h=(ED elev.—Permanent pool elev.)/2 h= 0.33 ft Area of orifice from orifice equation:Q=CA(2gh)0.5 A= 0.26 ft2 Diameter= 2 in 13 Compute release rate for CP„control and Establish CP„elevation WSEL= 1.5 ft Release rate Release Rate= 0.45 cfs Average head h=CP„elev.—Permanent pool elev.)/2 h= 0.33 ft Area or orifice from orifice equation:Q=CA(2gh)°5 A= 0.26 ft2 Diameter= 2 in 14 Calculate Qp release rate and water surface elevation Set up a stage-storage-discharge relationships. Peak stage for(WQv),the 1-inch,6-hour storm Peak Stage= ft Peak stage for(CP„),the 1-yr,24-hour storm Peak State= ft Peak Q1°—Undeveloped Q10-undev= cfs Peak Q1°—Developed Q10-dev= cfs Peak Q25—Undeveloped Q25-undev= cfs Peak Q25—Developed Q25-dev= cfs Size emergency spillway,calculate 50-year WSEL WSEL50= ft and set top of embankment elevation Embankment Elevation= ft 15 Investigate potential wet detention basin hazard Notes: classification 16 Assess maintenance access and safety features. 17 Attach landscaping plan