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Home My WebLink AboutStandard Penetration TestUNIVERSAL ENGINEERING SCIENCES Consultants In: Geotechnical Engineering • Environmental Sciences Geophysical Services • Construction Materials Testing • Threshold Inspection Buildina Inspection • Plan Review • Buildina Code Administration December 16, 2019 K. Hovananian Homes, LLC & C. Homes at Florida, LLC 3601 Quantum Boulevard Boynton Beach, Florida 33426 Attention: Mr. Kevin Borkenhagen Reference: Limited Subsurface Exploration Proposed. Residence at Lot #59 Waterstone Subdivision 5229 Armina Street Fort Pierce, Florida Universal Project No. 0330.1900096.0000 Dear Mr. Borkenhagen: LOCATIONS: Atlanta • Daytona Beach • Fort Myers Fort Pierce • Gainesville • Jacksonville • Kissimmee Leesburg Miami • Ocala • Orlando (Headquarters) • Palm Coast • Panama City • Pensacola • Rockledge Sarasota • Tampa • West Palm Beach Universal Engineering Sciences, Inc. (Universal) has recently completed a Standard Penetration Test (SPT) boring at the above referenced residential lot site in St. Lucie County, Florida. This SPT boring (B59) was performed for an overall exploration by Universal, covering a total of 59 individual lots within the south-central sections of the Waterstone Subdivision in Fort Pierce, Florida. The results of this exploration are enumerated under Universal's Project #0330.1900096.0000, Report dated September 6, 2019. This limited exploration was performed in accordance with generally accepted soil and foundation engineering practices. No other warranty, expressed or implied, is made. The purpose of the SPT boring (1359) was to analyze the subsurface soil conditions in general accordance with the Florida Building Code, Section 1803 (Geotechnical Investigations). The building pad subsurface soil conditions were explored by advancing a Standard Penetration Test (SPT) soil boring near the center of the lot (as staked by the client's representatives) to a depth of 10 feet below land surface (bls). Based on the results of the soils encountered, it is our opinion that the encountered soil conditions should be suitable for the support of a 12-inch wide or greater monolithic foundation slab embedded at least 12-inches, or shallow foundations embedded at least 18-inches, below lowest adjacent grade. Assuming that the encountered surficial strata within the house footprint, along with subsequent fill materials, are densified to at least 95% of the modified Proctor Test (ASTM D-1557), then a maximum allowable bearing capacity of 2,500 pounds per square foot (psf) is estimated for foundations designed and prepared according to good, standard industry practice. . tit', ir�'- r�- 820 Brevard Avenue, Rockledge, Florida 32955 (321) 638-0808 Fax 21:) 38-097. www.UniversalEngineering.com �j. JAJ��' F {+ N 8 2020 Permitting Der artln,r _ ; County, Proposed Residence at 5229 Armina Street Universal Project No. 0330.1900096.0000 Fort Pierce, St. Lucie County, Florida Limited Subsurface Exploration If any soils are found which are different from those encountered in our boring location, our office should be contacted immediately so that we can make further recommendations and verify that the conditions stated in this letter are still valid. CLOSURE Please note that all other provisions and analysis listed in our previous geotechnical engineering report, which have not been changed in this letter, still remain in effect. For a further description of the scope and limitations of this report please review the document attached within Exhibit 1 "Important Information About Your Geotechnical Engineering Report" prepared by GBArrhe Geoprofessional Business Association. We appreciate the opportunity to be working with you on this project and look forward to a continued association. Please do not hesitate to contact us if you should have any questions, or if we may further assist you as your plans proceed. Sincerely yours, UNIVERSAL ENGINEERING SCIENCES, INC. Certificate of Authorization No. 549 r i Brad Faucett, WS. P.E. - _- Regional, Engineer Florida Registration No: 33123 Attachments Boring Log Key to Boring Log Sheet Expanded View of Lot #59 Overall Boring Location Diagram GBA Document 1 — Client (by e-mail) UESDOCS# 1733089 JAN 6 20"1 Permitting ,-, _ ant St. Lucie Ct., FL 2 820 Brevard Avenue, Rockledge, Florida 32955 (321) 638-0808 Fax (321) 638-0978 www.Universa]Engineering.com e 2 0 N UNIVERSAL ENGINEERING SCIENCES PROJECT NO.: 0330.1900096.0000 BORING LOG REPORT NO.: APPENDIX: A PROJECT: Waterston Subdivision Emerson Ave Fort Pierce, Florida CLIENT: K.Hovnanian Homes, LLC LOCATION: SEE EXPLORATION LOCATION PLAN REMARKS: LOT59 BORING DESIGNATION: B59 SHEET: 1 of 'I SECTION: TOWNSHIP: SOUTH RANGE: EAST G.S. ELEVATION (0): DATE STARTED: 8129119 WATER TABLE (ft): 5.0 DATE FINISHED: 8129119 DATE OF READING: 916/2019 DRILLED BY: OG/JD EST. W.S.W.T. In): TYPE OF SAMPLING: w LL g BLOWS PER a' WJ < 3 O J w DESCRIPTION 300 20 No MC K (INJ ORG. CONT. c y INCREMENT i N p NFL) (%) 0 fine SAND with silt, trace of roots and clay lumps (fill), brown, [SP-SM] fine SAND with clay and trace of broken shell (fill), brown, ISP-SC] 5-9-13 22 fine SAND with silt, dark brown, [SP-SM] 13-19-26 45 fine SAND, brown, [SP] 5 .::.. ... 21-149 23 fine SAND with clay, broken shell and occasional cemented rock 5-5-7 tz layers, gray, [SPSC] 7-8-7 15 fine SAND with silt, broken shell and occasional cemented rock layers, gray, ISPSM] 10�1+6 10 .; ......................................... BORING TERMINATED AT 10' 15 ............................................. ............................................ � �� E� � JAN 8 2020 Permitting Department 20 ............................................. St. Lucie County, FL ............................................ KEY TO BORING LOGS SOIL CLASSIFICATION CHART' Sand or Gravel [SP,SVV GP,GVVI 5.............. ...................... ......... ....... ... Sand or Gravel with Silt or Clay [SPSM,SPSC] 12....................................................... w I S11ty or Clayyey Sand �j or ravel[SM,SC,GM,GCI (A80 O O N 60 = 80....................................................... a 40 G z_ = Sang or Gravelly Silt or Clay Q[ML,CL-ML,CL,MH,CH,OL,OH1 F 30 C 70 20 a` A. Sih or Clay with Sand or Gravel 10 [ML,CL-ML,CL,MH,CH.0L,0HI 85 1.................................................. I ....................................................... Silt or Clayy [ML,CL-ML,CL,MH,CH,OL,OH] 100....................................................... a Ir 0 10 20 GROUP NAME AND SYMBOL UNIVERSAL ENGINEERING SCIENCES, INC. 30 40 50 60 70 80 90 100 LIQUID LIMIT PLASTICITY CHART COARSE GRAINED SOILS FINE GRAINED SOILS WELL -GRADED SANDS ISWI •' • 4r WELL -GRADED GRAVELS G I IN INORGANIC SILTS SLIGHT PLASTICITY IMLI ADED POORLY -GRADED SAN�is j RAGED GRAVELS[I INORGANIC SILTY CLAY LOW PLASTICITY ICL4.ILI .` POORLY -GRADED SANDS WITH SILT ISPSMI ° p POORLY -GRADED GRAVELS WITH SILT IGPGM] INORGANIC CLAYS LOW TO MEDIUM PLASTICITY ICLI POORLYGRADEO SANDS WITH CLAY ISP_SCI o POORLY -GRADED GRAVES WITH CLAY IGPGCI INORGANIC SILTS HIGH PLASTICITY ILIHI - SILTY SANDS ISMI o D SILTY GRAVELS [GN4 ® INORGANIC CLAYS HIGH PLASTICITY [CHI CLAYEYSANDS [SCI CLAYEYGRAVELS IGCI HIGHLY ORGANIC SOILS NICSTCTY LAYS ORGANIC SILT&CLAYS LOW AYS ®MEDIUM TO HIGH MEDIUMTOHIGH PLASTICITY [OHf^ PEAT, HUMUS, SWAMP SOILS I u 1 WITH HIGH ORGANIC CONTENTS [FIT. RELATNE DENSITY (SAND AND GRAVEL) VERY LOOSE - 0 to 4 Blow5ft LOOSE -5 to 10 Blow5n MEDIUM DENSE -II to 30 BIowML DENSE -31 to 50 BlowstR. VERY DENSE -mare than 50 Slo.s M IN ACCORDANCE WITH ASTM D 2487- UNIRED SOIL SILTY CLAYEY SANDS CONSISTENCY [SCSMJ • CLASSIFICATION SYSTEM (SILTANO CLAY) ^ LOCALLY MAY BE KNOWN AS MUCK VERYSOFT-0to2BIwN5TL SOFT-3 to 4 BlowsRL FIRM - 5 to 8 BlowsM. NOTES: STIFF-9 to 16 BloxslR V - DENOTES DYNAMIC CONE PENETROMETER (DCP) VALUE R - DENOTES REFUSAL TO PENETRATION P-DENOTES PENETRATION WITH ONLYWEGMT OF ORNE HAMMER VERYSTIFF�1Zto 1 /„^� HARD- mormMan 3DBIo 30 BI WE- DENOTES GROUNDWATER TABLE NOT ENCOUNTERED NOTE: DUAL SYMBOLS ARE USED TO INDICATE BORDERLINE SOIL CLASSIFICAPoNS JAN b 202O A.1 Permitting, Department St. Lucie CO,'t }y/ FL [5229] 59 ki \ 58 57 � 71lJ 7r 2� M- X]vk • N:A I T$iure- ttopid�d b. 4h Cslien 4 45,ry.,'` 0 G� 44 am 4' q0 39tm 3&® M2 ®zi :r7� i man N)m am ♦ tom` r � __ _ ," _ — _ .- - .. .. Geolechnical-Engineeping0 Repopt � The Geoprofessional Business Association (GBA) has prepared this advisory to help you — assumedly a client representative — interpret and apply this geotechnical-engineering report as effectively as possible. In that way, clients can benefit from a lowered exposure to the subsurface problems that, for decades, have been a principal cause of construction delays, cost overruns, claims, and disputes. If you have questions or want more information about any of the issues discussed below, contact your GBA-member geotechnical engineer. Active involvement in the Geoprofessional Business Association exposes geotechnical engineers to a wide array of risk -confrontation techniques that can be of genuine benefit for everyone involved with a construction project. Geotechnical-Engineering Services Are Performed for Specific Purposes, Persons, and Projects Geotechnical engineers structure their services to meet the specific needs of their clients. A geotechnical-engineering study conducted for a given civil engineer will not likely meet the needs of a civil - works constructor or even a different civil engineer. Because each geotechnical-engineering study is unique, each geotedrnical- engineering report is unique, prepared solely for the client Those who rely on a geotechnical-engineering report prepared for a different client can be seriously misled. No one except authorized client representatives should rely on this geotechnical-engineering report without first conferring with the geotechnical engineer who prepared it And no one - not even you - should apply this report for any purpose or project except the one originally contemplated. Read this Report in Full Costly problems have occurred because those relying on a geotechnical- engineering report did not read it in its entirety. Do not rely on an executive summary. Do not read selected elements only. Read this report in full. You Need to Inform Your Geotechnical Engineer about Change Your geotechnical engineer considered unique, project -specific factors when designing the study behind this report and developing the confirmation -dependent recommendations the report conveys. A few typical factors include: • the dienfs goals, objectives, budget, schedule, and risk -management preferences; • the general nature of the structure involved, its size, configuration, and performance criteria; • the structures location and orientation on the site; and • other planned or existing site improvements, such as retaining wells, access roads, parking lots, and underground utilities. Typical changes that could erode the reliability of this report include those that affect • the sites size or shape; • the function of the proposed structure, as when it's changed from a parking garage to an office building, or from a light -industrial plant to a refrigerated warehouse; • the elevation, configuration, location, orientation, or weight of the proposed structure; • the composition of the design team; or • project ownership. As a general rule, always inform your geotechnical engineer of project changes - even minor ones - and request an assessment of their impact. 7hegeotechnical engineer who prepared this report cannot accept responsibility or liability for problems that arise because the geotechnical engineer was not informed about developments the engineer otherwise would have considered. This Report May Not Be Reliable Do not rely on this report if your geotechnical engineer prepared it• • for a different client; • for a different project; • for a different site (that may or may not include all or a portion of the original site); or • before important events occurred at the site or adjacent to it; e.g., man-made events like construction or environmental remediation, or natural events like Floods, droughts, earthquakes, or groundwater fluctuations. Note, too, that it could be unwise to rely on a geotechnical-engineering report whose reliability may have been affected by the passage of time, because of factors like changed subsurface conditions; new or modified codes, standards, or regulations; or new techniques or tools. If your geotechnical engineer has not indicated an apply -by" date on the report, ask what it should be, and, in general, if you are the least bit uncertain about the continued reliability of this report, contact your geotechnical engineer before applying it A minor amount of additional testing or analysis - if any is required at all - could prevent major problems. Most of the "Findings" Related in This Report Are Professional Opinions Before construction begins, geotechnical engineers explore a sites subsurface through various sampling and testing procedures. Geotechnical engineers can observe actual subsurface conditions only at those speck locations where sampling and testing were performed. The data derived from that sampling and testing were reviewed by your geotechnical engineer, who then applied professional judgment to form opinions about subsurface conditions throughout the site. Actual sitewide-subsurface conditions may differ - ma esignificantly_,fron: those indicated in this rep 117Confront that rilsk by-retammgyour - geotechnical engineer to s rve on the deseg`n tealn�froon project, stato in project finish, so the divi u� c`n'p ovide informed guidance:quicklj whenever needed - JAN 0 %020 Permit:tin,,i . apartment St. Lill-,,: ,qlrli-w, FL This Report's Recommendations Are Confirmation -Dependent The recommendations included in this report —including any options or alternatives — are confirmation -dependent. In other words, they are notfinal, because the geotechnical engineer who developed them relied heavily on judgment and opinion to do so. Your geotechnical engineer can finalize the recommendations only after observing actual subsurface conditions revealed during construction. if through observation your geotechnical engineer confirms that the conditions assumed to exist actually do exist, the recommendations can be relied upon, assuming no other changes have occurred 7hegeotechnical engineer who prepared this report cannot assume responsibility or liability forconfirmation- dependent recommendations ifyou fail to retain that engineer to perform construction observation. This Report Could Be Misinterpreted Other design professionals' misinterpretation of geotechnical- engineering reports has resulted in costly problems. Confront that risk by having your geotechnical engineer serve as a full-time member of the design team, to: • confer with other design -team members, • help develop specifications, • review pertinent elements of other design professionals plans and specifications, and • be on hand quickly whenever geotechnical-engineering guidance is needed You should also confront the risk of constructors misinterpreting this report Do so by retaining your geotechnical engineer to participate in prebid and preconstruction conferences and to perform construction observation. Give Constructors a Complete Report and Guidance Some owners and design professionals mistakenly believe they can shift unanticipated -subsurface -conditions liability to constructors by limiting the information they provide for bid preparation. To help prevent the costly, contentious problems this practice has caused, include the complete geotechnical-engineering report, along with any attachments or appendices, with your contract documents, but he certain to note conspicuously that you've included the material for informational purposes only. To avoid misunderstanding, you may also want to note that "informational purposes means constructors have no right to rely on the interpretations, opinions, conclusions, or recommendations in the report, but they may rely on the factual data relative to the specific times, locations, and depths/elevations referenced Be certain that constructors know they may learn about specific project requirements, including options selected from the report, only from the design drawings and specifications. Remind constructors that they may perform their own studies if they want to, and be sure to allow enough time to permit them to do so. Only then might you be in a position to give constructors the information available to you, while requiring them to at least share some of the financial responsibilities stemming from unanticipated conditions. Conducting prebid and preconstruction conferences can also be valuable in this respect. Read. Responsibility Provisions Closely Some client representatives, design professionals, and constructors do not realize that geotechnical engineering is far less exact than other engineering disciplines. That lack of understanding has nurtured unrealistic expectations that have resulted in disappointments, delays, cost overruns, claims, and disputes. To confront that risk, geotechnical engineers commonly include explanatory provisions in their reports. Sometimes labeled "limitations" many of these provisions indicate where geotechnical engineers' responsibilities begin and end, to help others recognize their own responsibilities and risks. Read these provisions closely. Ask questions. Your geotechnical engineer should respond fully and frankly. Geoenvironmental Concerns Are Not Covered The personnel, equipment, and techniques used to perform an environmental study— e.g., a "phase -one" or "phase -two" environmental site assessment — differ significantly from those used to perform a geotechnical-engineering study. For that reason, a geotechnical- engineering report does not usually relate any environmental findings, conclusions, or recommendations; e.g., about the likelihood of encountering underground storage tanks or regulated contaminants. Unanticipated subsurface environmental problems have led to project failures. If you have not yet obtained your own environmental information, ask your geotechnical consultant for risk -management guidance. As a general rule, do not rely on an environmental report prepared for a different client, site, or project, or that is more than six months old. Obtain Professional Assistance to Deal with Moisture Infiltration and Mold While your geotechnical engineer may have addressed groundwater, water infiltration, or similar issues in this report, none of the engineer's services were designed, conducted, or intended to prevent uncontrolled migration of moisture — including water vapor — from the soil through building slabs and walls and into the building interior, where it can cause mold growth and material -performance deficiencies. Accordingly, proper implementation of the geotechnical engineer's recommendations will not of itself be sufficient to prevent moisture infiltration. Confront the risk of moisture infiltration by including building -envelope or mold specialists on the design team. Geotechnical engineers are not building - envelope or mold specialists. �17 SHAASSOCIATION GEOPROFESSIONAL JAN 2020 BUSINESS Pe"MiLLing Dep;, hi.-ner . 1.� Telephone:301/565-2733 _- _Lucie Cour'` '. E1I e-mail: info@geoprofessional.org wwwgeoprofessional.org Copyright 2016 by Geopmfessional filminess Association (GBA). Duplication, reproduction, or copying of this document, in whole or in part, by any means whatsoever, is suiNy prohibited, except with GBM specific writen 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