PWS Geotechnical Final.docx

Performance Work Statement (PWS) Geotechnical Investigation Support Services for Champlain Towers South NCST Teams

Background:

The National Construction Safety Team Act (“Act”), Pub. L. 107-231, codified at 15 U.S.C. 7301 et seq., was enacted to provide for the establishment of investigative teams (“Teams”) to assess building performance and emergency response and evacuation procedures in the wake of any building failure that has resulted in substantial loss of life or that posed significant potential of substantial loss of life. The purpose of investigations by Teams is to improve the safety and structural integrity of buildings in the United States.

As stated in the statute, a Team shall (1) establish the likely technical cause or causes of the building failure; (2) evaluate the technical aspects of evacuation and emergency response procedures; (3) recommend, as necessary, specific improvements to building standards, codes, and practices based on the findings made pursuant to (1) and (2); and (4) recommend any research and other appropriate actions needed to improve the structural safety of buildings, and improve evacuation and emergency response procedures, based on the findings of the investigation. In addition, NIST has promulgated regulations implementing the Act. The regulations are found at 15 CFR part 270.

NIST sent a preliminary reconnaissance team to collect information and data related to the collapse of the Champlain Towers South (CTS) Condominium in Surfside, FL that occurred on June 24, 2021. Based on the recommendations of the preliminary reconnaissance team and evaluation of the criteria listed in the regulations implementing the Act, specifically in 15 CFR § 270.102, on June 30, 2021, the Director of the National Institute of Standards and Technology (NIST), United States Department of Commerce, established a Team (called herein the Champlain Towers South National Construction Safety Team or CTS NCST) to study the collapse of the Champlain Towers South Condominium in Surfside, FL. The Team may include members who are Federal employees and members who are not Federal employees. Team members who are Federal employees are governed by the Federal conflict of interest laws. Team members who are not Federal employees will be Federal government contractors.

Objectives:

The objective of this acquisition is to procure technical assistance in evaluating selected geotechnical aspects of the CTS site. In particular, support is needed to assess technical contributors to the site characterization and foundation design, its as-built construction, and its condition at the time of collapse. This project is expected to be critical for analyzing the relationship and interactions between the structure and the subsurface of the site.

Scope of Work:

General Requirements:

The Contractor shall be available to be on location in the Surfside, FL area, when needed, for observations, sampling, or testing of the CTS building, site, and warehouse evidence, or adjacent areas and to meet with building code officials and others (contractors, maintenance personnel, etc.) with relevant knowledge on the building and site’s history and characteristics that could pertain to the partial collapse event. Remote work may include analysis, presentations, project team meetings, and providing input and assistance to NIST in creating professional grade reports documenting the investigation being performed pertaining to the partial collapse.

Specific Task Requirements:

Task 1 Project Management and Planning Task 1.1 Project Director Support The Contractor shall appoint a Project Director (PD) who shall have overall responsibility for project management and execution of tasks detailed herein. The PD shall be responsible for progress of the project, its deliverables, and the overall technical quality of the project. In addition, the PD shall be responsible for reviewing project deliverables prior to submission, providing advice and consultation throughout the project, and shall serve as a liaison to outside organizations or persons as directed by the NIST Contracting Officer’s Representative (COR).

As the work required by this Performance Work Statement (PWS) is one component of the overall geotechnical investigation of the CTS condominium collapse, the PD shall ensure appropriate communication and coordination with all NIST contract personnel. The PD is responsible for working closely with the COR to coordinate any new developments in the CTS NCST investigation. This shall require meetings amongst all Contractor Personnel, and with NIST staff working on geotechnical and other aspects of the CTS investigation. The PD shall participate and, when appropriate, present at CTS NCST meetings.

Task 1.2 Kick off meeting Within five calendar days of award, the Contractor shall host and conduct a project kickoff meeting via web-supported videoconference with NIST and all key project personnel. The goal of this meeting shall be to review the study approach, data needs, and coordinate activities as needed to develop a project work plan and a timeline for the project. This meeting shall include the NIST COR and other NIST personnel identified by the COR.

Task 1.3 Project Work Plan (PWP) Within twenty-one calendar days of contract award, the Contractor shall develop and submit to NIST a draft project work plan (PWP, Deliverable 1) for review and approval. The PWP shall include descriptions of more detailed plans for the tasks identified in this PWS, their schedules, and any potential risks for implementation anticipated along with mitigation strategies. Within the PWP, the Contractor shall explicitly define its quality assurance and quality control (QA/QC) plan for the project. For each deliverable a written record of the QA/QC process, and final certification, shall be retained by the Contractor and delivered to the COR alongside each deliverable.

The NIST COR will approve the PWP or provide review comments for revision within ten calendar days of receipt. The Contractor shall have ten calendar days to incorporate review comments provided by NIST and submit a final PWP. The PWP shall be revised as needed throughout the life of the contract with updates mutually agreed upon by NIST and the Contractor, with the Contractor providing the proposed revision and NIST approving or providing comments for revision within ten calendar days of receipt. The act of exercising options may also require an update to the Project Work Plan which the Contractor shall perform and revise following the same procedures as outlined above.

Task 1.4 Monthly Update Calls, Other meetings, and Reports The PD shall be responsible for communication of the contract status through monthly update reports which shall provide information on the progress, schedule, and risks associated with the project and each deliverable. Information on travel and other direct costs shall also be provided. Status reports (Deliverable 2) are to be completed and submitted to NIST’s COR by the final day of each month during the contract performance period. As necessary, the COR will discuss and propose resolutions to mitigate any difficulties in coordination with the PD. Virtual meetings may also be required to facilitate conversations related to the above updates.

It is anticipated that the scope of work detailed in this PWS will require regular meetings of Contractor Personnel with NIST, amongst Contractor Personnel, and potentially the creation of smaller task-oriented working groups. The PD is expected to make provisions for these interactions and take responsibility for ensuring coordination is both effective and efficient. The Contractor shall host and conduct meetings as described in this section in accordance with the tasks of this contract. All meetings shall be conducted during regular business hours for Eastern Time. Notification for NIST personnel shall be provided with two working days’ notice prior to the meeting. The Contractor shall host and conduct monthly web-supported teleconference meetings, and keep minutes of these meetings to be provided to NIST within two working days after each meeting. The PD shall inform NIST’s COR immediately of any challenges identified in the coordination process, and the COR and PD shall work together to create a solution to these challenges.

Task 2 Technical Tasks For all tasks described below, NIST shall make available to the Contractor data, documents, or other information that shall be incorporated into Contractor activities and, where appropriate, included in Contractor Deliverables.

The CTS site is at the waterfront of South Florida in the Town of Surfside at 8777 Collins Avenue, with a lot plan of approximately 150 feet by 100 feet. The general stratigraphy includes primarily various layers of fill, sand, and local limestone variations. Collected geotechnical and foundation information by the Government includes historic and neighboring data and reports produced by others in the general region, and site-specific subsurface investigation data that includes invasive and non-destructive field and laboratory data for the soil and rock strata and for the CTS foundations. The collected geotechnical and foundation information by the Government up to the day of awarding this contract shall be furnished to the Contractor. Additional detail regarding this Government-furnished Information is described in the appropriate sections below.

Task 2.1 Site Foundation History and Design The Contractor shall compile information about the geotechnical and foundation state of the practice for the design and construction of the site-specific deep foundations and support of excavation (and immediately surrounding structures) at the time the CTS was designed and built (in the late 1970’s to early 1980’s), but also historically and regionally for these types of foundations and excavations. Specifically, the Contractor shall:

(i) identify applicable local building codes and relevant standards and references.

(ii) identify experienced – including retired – practitioners who are familiar with foundation practices in south FL with expertise and historical understanding of regional design and construction practices of geotechnical, foundation and excavation aspects at the time the CTS was built, as well as construction support of excavations for immediately adjacent structures.

(iii) prepare and support the development, in collaboration with the COR, of interview or focus group questions that will be conducted by the CTS NCST Investigation to confirm the findings of the Contractor and fill any gaps in knowledge on the state of practice and design as described above.

(iv) perform a design check of the CTS foundations using the FL Building Code at the time of original design and construction (including the 1970 South Florida Building Code and its amendments of 1977 and 1979, and ACI 318-77), and applicable engineering practices prevailing at the time of the design of the project in South FL. This design check shall be under the entire CTS building and shall include single pile/pile cap, group piles/pile cap, shear walls foundations, sheet pile wall used for temporary excavation support, and the final basement support wall. The check excludes the design of the basement mat.

(v) perform a design check of the CTS foundations below the pool deck area using current codes and standards ASCE 7-22, and ACI 318-19, and the currently applicable engineering practices prevailing today. This check shall be under the entire CTS building and shall include single pile/pile cap, group piles/pile cap, shear walls foundations, sheet pile wall used for temporary excavation support, and the final basement support wall. The check excludes the design of the basement mat.

The Contractor shall produce a technical letter with findings for items (i) through (v) above in electronic format and copies of all reference and technical documentation used to compile this letter (Deliverable 3).

Task 2.2 Geotechnical Interpretive Report Appendix A provides a summary of available site investigation data that will be provided to the Contractor for the execution of this task. The Contractor shall compile a Geotechnical Interpretive Report that shall include:

(i) soils properties profile with depth from the ground surface, together with the statistical variability of these properties.

(ii) evaluation of the variability of engineering properties of soil, rock, and pile foundation for the various field and laboratory testing approaches and methods used in the investigation and evaluate the statistical representation of the variability.

(iii) comparison of groundwater conditions and variability of its elevation at the CTS site over the years of CTS life (to be provided by the Government) and with regional fluctuations from resources and regional experience of the Contractor.

(iv) evaluation of modifications in reference datums during the life of CTS and quantification of impacts on items (i) to (iii) in this Task.

The Geotechnical Interpretive Report shall provide the methodology, data, and assumptions used to complete the scope of work in Task 2.2 and any related recommendations or conclusions (Deliverable 4). The Contractor shall collaborate through the COR to review geotechnical information collected by the Government to use for development of independent estimates of parameters relevant to failure hypotheses. These parameters shall be discussed with the COR and include characteristic soil profiles, geotechnical engineering properties, foundation stiffness springs, and wave propagation characteristic of the geologic strata below and surrounding CTS.

Task 2.3 Data for 3-D Visualization Model The Contractor shall collaborate, through the COR, with the CTS NCST Remote Sensing and Visualization Project to develop four (4) two-dimensional geologic sections and a corresponding plan (Deliverable 5). The Contractor shall provide an interpretation of the elevation and depth from the ground surface of the subsurface conditions including soil/rock strata, groundwater conditions, and foundation elements below and around the CTS building. This interpretation shall be provided in electronic format in the form of contour maps, as well as simplified 2-D and 3-D sketches (Deliverable 5). The Contractor shall provide these data for incorporation in the 3-D model developed by the CTS NCST Remote Sensing and Visualization Project but shall not be responsible for the development of the 3-D model.

Task 2.4 Uncertainties The Contractor, based on review of collected information by the Government and the information developed by the Contractor in Task 2, shall assess aleatory and epistemic uncertainties related to the following subtasks:

Task 2.4.1 – Uncertainties in the site characterization including the nature and engineering properties of soils and rocks that are beneath and around the site. All relevant information will be provided to the Contractor at the kickoff meeting.

Task 2.4.2 – Uncertainties in the foundation system’s construction, materials, and capacity, including the deep foundations below CTS and the perimeter basement wall.

Task 2.4.3 – Uncertainties in ground movements transferred to the subsurface strata and the foundations.

The Contractor shall perform the requisite analyses to provide uncertainty quantifications for Subtasks 2.4.1 to 2.4.3 to be reported in technical memoranda for each subtask. The Contractor shall develop a core conceptual framework for the analysis, interpretation, and integration of disparate data sets (described in the paragraph and subtasks above).

The Contractor shall make recommendations for the treatment and quantification of the identified uncertainties by interacting with and providing feedback to the COR and in monthly meetings with the NIST team assigned for this task (uncertainties). The Contractor shall identify required interfaces with uncertainty evaluations in other CTS NCST investigation projects to be coordinated by the COR. The Contractor shall develop a report for review and concurrence to the COR (Deliverable 6).

The Contractor shall deliver separate technical reports for each of the deliverables listed below. The final Reporting for Tasks 2.1 through 2.4 will constitute Deliverable 7.

Task 2.5 Electronic Delivery of Data To the extent feasible, all data, evidence, and results compiled during this effort shall be located on NIST’s Box site for the duration of the contract. The Contractor shall compile, organize and store all data collected under the Tasks outlined above, as well as NIST-provided data. The data shall be recorded with adequate metadata for future retrieval. The Contractor shall ensure the final dataset is prepared and in appropriate data file types per specifications of each task, for transmission to NIST at the end of each Task. NIST requires that all data is confirmed as transmitted to NIST at least fifteen (15) calendar days prior to award conclusion. The confirmed delivery of all data constitutes Deliverable 8. The rules and restrictions about data and information produced by the Contractor are provided in Appendix B.

Schedule of Deliverables The Contractor shall submit the following deliverables (DL) to the NIST COR per the schedule identified. All materials shall be submitted to NIST via electronic submission to Box.

Final Geotechnical Interpretive Report Final Electronic Data set Final Uncertainties Report 360 calendar days post-award

Period of Performance The period of performance shall be 12 months from date of award. Specifically, the technical tasks shall be completed within 9 months from date of award, and report writing, and review shall be completed within 12 months from date of award. Optional Tasks may be initiated within the first 3 months after award only and shall be completed within the overall award period of performance.

Place of Performance The primary place of performance shall be the Contractor’s facility. Some work shall be required in South Florida per the requirements of the Travel section below.

Contract Type The contract type shall be Firm-Fixed Price.

Key Personnel Requirements At minimum, the contractor shall assign three (3) key personnel to this contract for the base set of tasks. Descriptions of the minimum qualifications for each of the three required key personnel are included below. The listed labor categories are not mandatory; they are only example labor categories that are applicable to the required skill sets.

One (1) Project Director (PD) The Contractor shall provide a Project Director (PD), who is highly qualified (verified with a portfolio of their professional achievements), contributes to the technical planning process and manages multidisciplinary projects and staff, and has the following minimum qualifications:

· Ph.D. degree in Civil Engineering

· Professional Engineering license in any US State, or appropriate equivalent, preferably with Geotechnical Engineering specialization. An appropriate equivalent to a Professional Engineering license includes board-level certifications such as the Diplomate of Geotechnical Engineering of the Academy of Geo-Professionals or Professional Engineering license equivalents from other countries.

· 25 years of general work experience in geotechnical engineering. Of the 25 years of experience, the key personnel shall also meet the following requirements:

· 15 years of specialized geotechnical engineering work experience in each of the following areas:

· applying technical knowledge and judgment in a scientific or other technical field in relevant engineering principles and practices required for technically complex assignments.

· leading post extreme event evaluation of physical infrastructure and geo-structures.

· generating concepts as evidenced by product or process improvement.

· using engineering/ scientific tools to integrate requirements and solve technical problems.

· using tools, techniques, processes and/or facilities, such as state-of-the-art simulation environments, laboratories, and test facilities.

· 10 years of general project management experience

One (1) Geotechnical and Foundation Expert The Contractor shall provide a technical expert with geotechnical and foundation specialization that will support the leading of Tasks 2.1, 2.2, 2.3, contribute to the technical planning process, and has the following qualifications:

· Master’s degree in Civil Engineering; Ph.D. preferred.

· 25 years of civil engineering work experience, of which 18 years is specialized in a field related to geotechnical engineering, foundation planning, construction, maintenance, evaluation, and forensic engineering, including experience in:

· applying technical knowledge and judgment in geotechnical engineering (e.g., site characterization, local means and methods of investigations and interpretation)

· tall concrete buildings in coastal environments, preferably in South FL.

· evaluating geo-problems such as ground settlements, stability of retaining systems, and soil-structure interaction effects.

· applying technical knowledge and judgment with perspective on foundation engineering and contracting.

· applying technical knowledge and judgment with perspective on coastal environments and design and construction of deep foundations.

· assessing construction staging, seepage, performance and capacity of existing foundation and soil retention systems.

· Professional Engineering (PE) license in the State of FL. Additional certification in geotechnical engineering by a nationally recognized Board is preferred but not required.

· Knowledge of local codes and practices and their history over the past 5 decades (50 years) in South FL as demonstrated by project design experience, peer reviewed publications, or involvement in technical development of codes, standards and guidelines in South Florida.

One (1) Uncertainty Characterization Expert The Contractor shall provide a technical expert that specializes in uncertainty characterization, that will support the leading of Task 2.7, contributes to the technical planning process and the methodology to propagate the geotechnical and foundation uncertainties to the other aspects of the investigation, and that has the following qualifications:

· Ph.D. degree in Civil Engineering

· 20 years of civil engineering experience, of which 10 years is specialized in a specific field relevant to the quantification of uncertainties in evaluating engineering properties, especially of geotechnical and structural nature, including experience in:

· applying technical knowledge and judgment in a scientific or other technical field in relevant engineering principles and practices related to the engineering uncertainties.

· identifying geotechnical and foundation aleatory and epistemic uncertainties.

· conducting assessments of data uncertainty and gap analysis of geotechnical and foundation field investigations.

· applying advanced statistical methods to quantify uncertainty.

· incorporating uncertainty in conventional engineering calculations as well as advanced soil-structure interaction analyses.

· Professional Engineering license in any US State, or appropriate equivalent, preferably with Geotechnical Engineering specialization. An appropriate equivalent to a Professional Engineering license includes board-level certifications such as the Diplomate of Geotechnical Engineering of the Academy of Geo-Professionals or Professional Engineering license equivalents from other countries.

For Optional Tasks6 to 8 the Contractor shall assign a minimum of one (1) and maximum of two (2) additional key personnel to this contract. Minimum required qualifications are provided below. If one key personnel is proposed, the individual must meet the requirements of the Soil Structure Interaction and Construction Vibrations Expert position below. If two key personnel are proposed, one must meet the requirements of the Social Structure Interactions Expert position and one must meet the requirements of the Construction Vibrations Expert position.

One (1) Soil-Structure Interaction and Construction Vibrations Expert The Contractor shall provide a technical expert that specializes in the evaluation of construction-induced vibrations in soil-structure interaction (SSI) engineering problems, that will support the leading of Optional Tasks 6 through 8, contribute to the technical planning process and methodology to: (a) perform advanced numerical two- and three-dimensional SSI analyses of the CTS foundation system for various loading scenarios including tidal fluctuations, (b) apply empirical methods to evaluate the numerical analyses results in (a), (c) simulate the impact of construction and excavation sequence of adjacent structures on existing structures, (d) propagate observed and theoretical excitations that are results of vibrations from construction activities to the CTS foundation system and apply those to other aspects of the investigation, and (e) quantify uncertainties involved with these analyses, and has the following qualifications:

· Master’s or Ph.D. degree in Civil Engineering

· 25 years of civil engineering work experience, of which 18 years is specialized in the numerical and empirical assessment of SSI, excavation induced movements and construction-induced vibrations for below-ground structures, including experience in:

· applying technical knowledge and judgment in a scientific or other technical field in relevant engineering principles and practices related to the engineering uncertainties.

· evaluating soil-structure interaction static, dynamic, and vibrations effects on buildings and below-ground structures for various types of loading.

· using advanced numerical tools and having knowledge of empirical methodologies for SSI analyses of geo-structures and foundation systems and evaluation of uncertainties involved in those.

· evaluating excavation-induced movements and construction-induced vibrations and the propagation of those vibrations to adjacent structures. Vibrations should include those from installation of deep pile foundations and temporary support of excavation.

· Professional Engineering license in any US State, or appropriate equivalent, preferably with Geotechnical Engineering specialization. An appropriate equivalent to a Professional Engineering license includes board-level certifications such as the Diplomate of Geotechnical Engineering of the Academy of Geo-Professionals or Professional Engineering license equivalents from other countries.

· Demonstrated familiarity of codes and standards related to soil-structure interaction and construction-induced vibrations as demonstrated by project design experience, peer reviewed publications, or involvement in technical development of codes, standards and guidelines.

OR

One (1) Soil-Structure Interaction Expert The Contractor shall provide a technical expert that specializes in the evaluation of soil-structure interaction (SSI) engineering problems, that will support the leading of Optional Task 7 contribute to the technical planning process and methodology to: (a) perform advanced numerical two- and three-dimensional SSI analyses of the CTS foundation system for various loading scenarios including tidal fluctuations, (b) apply empirical methods to evaluate the numerical analyses results in (a), and (c) quantify uncertainties involved with these SSI analyses, and has the following qualifications:

· Master’s or Ph.D. degree in Civil Engineering

· 25 years of civil engineering work experience, of which 18 years is specialized in the numerical and empirical assessment of SSI, excavation induced movements and construction-induced vibrations for below-ground structures, including experience in:

· applying technical knowledge and judgment in a scientific or other technical field in relevant engineering principles and practices related to the engineering uncertainties.

· evaluating SSI static and dynamic effects on buildings and below-ground structures for various types of loading.

· using advanced numerical tools and having knowledge of empirical methodologies for SSI analyses of geo-structures and foundation systems and evaluation of uncertainties involved in those.

· Professional Engineering license in any US State, or appropriate equivalent, preferably with Geotechnical Engineering specialization. An appropriate equivalent to a Professional Engineering license includes board-level certifications such as the Diplomate of Geotechnical Engineering of the Academy of Geo-Professionals or Professional Engineering license equivalents from other countries.

· Demonstrated familiarity of codes and standards related to soil-structure interaction and construction-induced vibrations as demonstrated by project design experience, peer reviewed publications, or involvement in technical development of codes, standards and guidelines.

And

One (1) Construction Vibrations Expert The Contractor shall provide a technical expert that specializes in the evaluation of construction-induced vibrations in soil-structure interaction (SSI) engineering problems, that will support the leading of Optional Tasks 6 and 8, contribute to the technical planning process and methodology to: (a) simulate the impact of construction and excavation sequence of adjacent structures on existing structures, and (b) propagate observed and theoretical excitations that are results of vibrations from construction activities to the CTS foundation system and apply those to other aspects of the investigation, and has the following qualifications:

· Master’s or Ph.D. degree in Civil Engineering

· 25 years of civil engineering work experience, of which 18 years is specialized in the numerical and empirical assessment of SSI, excavation induced movements and construction-induced vibrations for below-ground structures, including experience in:

· applying technical knowledge and judgment in a scientific or other technical field in relevant engineering principles and practices related to the engineering uncertainties.

· evaluating soil-structure interaction dynamic and vibration effects on buildings and below-ground structures using advanced numerical tools.

· evaluating excavation-induced movements and construction-induced vibrations and the propagation of those vibrations to adjacent structures. Vibrations should include those from installation of deep pile foundations and temporary support of excavation.

· Professional Engineering license in any US State, or appropriate equivalent, preferably with Geotechnical Engineering specialization. An appropriate equivalent to a Professional Engineering license includes board-level certifications such as the Diplomate of Geotechnical Engineering of the Academy of Geo-Professionals or Professional Engineering license equivalents from other countries.

· Demonstrated familiarity of codes and standards related to soil-structure interaction and construction-induced vibrations as demonstrated by project design experience, peer reviewed publications, or involvement in technical development of codes, standards and guidelines.

Any key personnel substitutions following award shall have advance NIST COR approval and be memorialized via a modification signed by the NIST Contracting Officer (CO). Replacements for key personnel must possess qualifications equal to or better than the minimum qualifications possessed by the original key personnel leaving the project. Requests for changes shall be submitted to the NIST COR and CO in advance and shall be approved by the CO prior to making any permanent substitutions. The request shall contain a detailed explanation of the circumstances necessitating the proposed substitutions, complete resumes for the proposed substitutions, and any additional information requested by the NIST COR and CO. The award will be modified by the CO to reflect any approved changes.

Government-Furnished Property, Material, Equipment, or Information (GFP, GFM, GFE, or GFI) The Contractor shall handle Controlled Unclassified Information (CUI) data that the Government provides in accordance to the FAR Clause 52.204-21 Basic Safeguarding of Covered Contractor Information Systems and NIST Special Publication SP800-171 available at https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-171r2.pdf.a. In addition, the Contractor will be given access to NIST’s Box site for the duration of the contract for data exchange with the Government. In the event the Contractor is working at the NIST Gaithersburg, MD campus, guest internet access will be provided. The Government will not provide any equipment to the Contractor. Equipment, including computing and telephone equipment, is the Contractor’s responsibility. The Government will not be responsible for cell phone charges associated with contract performance.

Data collected by NIST, which will be provided to the Contractor, includes information relevant to the environment and geology, site history and development, foundation characteristics, and geotechnical conditions. The final list of data to be transmitted to the Contractor will be completed in the PWP process (Deliverable 1). Examples of these materials include:

· Foundation design documents and drawings,

· Testing reports from in-situ, laboratory, and pile testing (types, standards, results)

· Surveying, remote sensing, water fluctuations

· Resistivity and tidal connectivity

· Relevant data and reports

· Maps, photos, remote sensing data, publications relevant to site’s geological, ecological, hydrological, and environmental history

· Available land use, development, planning, historic publications and maps

· Data relevant to possible disturbances including that of the natural or built physical environment and human engineering, construction, and management practices.

· History land use, fill and dredging information

· Available geotechnical and regional subsidence data and reports

· In-situ collected information during the investigation

· Copies of available codes and standards

· Literature review

· Maintenance and inspection CTS records and available relevant interview portions

· Base plan in electronic format and coordinate system

· Historic documents/photos, design documents

· Observations, vibration records from various construction activities and testing;

· Technical content from claims made by others during the investigation

· Electronic drawings earth-retaining system location and geometry during the CTS lifetime

· Data from human- or nature-induced events

· Collapse hypotheses (description/data for up to six failure hypotheses related to this contract) Data provided to the Contractor shall be handled with the rules and restrictions presented in Appendix B and shall be returned to NIST upon completion of the project and sanitized from Contractor systems following guidelines in SP 800-88 based on the specified FISMA impact level (Moderate).

Travel Travel to and from South Florida is required and shall not exceed $15,000.00 over the award period of performance. Travel, when approved in advance by the NIST COR, will be reimbursed in accordance with the Federal Travel Regulation The Contractor shall be responsible for making all travel arrangements including but not limited to airline tickets, hotel, car rental reservations, etc. All travel shall be estimated by the Contractor in advance and pre-authorized by the COR. The Contractor shall make every effort to keep travel costs to a minimum and shall not exceed the travel ceiling.

Other Direct Costs Other direct costs, including software licenses and equipment, are anticipated. Other direct costs must be authorized in advance by the COR and shall not exceed $10,000.00 over the award period of performance.

[SOLICITATION INSTRUCTION: Any projected requests for other direct costs shall be included in the Contractor’s proposal (e.g., for software licenses or any other equipment purchases.)] Risk Levels The work to be performed under this contract is IT Moderate Risk.

Information Security Requirements

FAR Clause 52.204-21 Basic Safeguarding of Covered Contractor Information Systems is applicable to this requirement. The Contractor shall have implemented security controls that meet or exceed the requirements stated in this clause prior to commencing work.

The Federal Information Security Management Act (FISMA) impact level of the data associated with the requirement is Moderate. All data, evidence, and results compiled as a result of this requirement shall be stored on the NIST Box instance that will be provided by NIST to the Contractor.

Media Inquiries The Contractor and its employees shall not respond to any media inquiries. Any inquiries from the media shall be immediately relayed to the COR and/or CO. There shall be no interviews, comments, or any other response without the knowledge and approval of the NIST Public Affairs Office.

Performance Requirements Summary

Levels Methods of Surveillance

Optional Requirements THE FOLLOWING SERVICES ARE OPTIONAL LINE ITEM REQUIREMENTS. PRICES QUOTED SHALL BE EFFECTIVE FOR THE ENTIRE PERIOD OF PERFORMANCE. AWARD OF OPTION LINE ITEMS IS AT THE SOLE DISCRETION OF THE GOVERNMENT IN ACCORDANCE WITH FAR 52.217-7.

The period of performance for Optional Tasks 3, 4, 5, 6, 7, and 8 shall be 8 months from the date of exercising the option. The Government may exercise any of these optional tasks up to any point 3 months post award date. The option may only be exercised by the issuance of a contract modification by a warranted NIST CO using (Standard Form 30).

Optional Task 3: Selective Laboratory Testing (Firm Fixed Unit Price with Ceiling) This optional line item shall be firm fixed unit price with a ceiling of $25,000.00. The Contractor shall propose unit pricing for each of the different potential tests A through J shown below. The Government may require tests as needed, if the option is exercised, which shall be billed at the negotiated unit prices up to the ceiling price.

The Contractor may be required to perform selective laboratory testing on soil, rock, and foundation samples to complement the collected information by the Government, to confirm the assumptions of the Contractor, and to provide further input to the uncertainties’ evaluation, as described in this paragraph. Should this option be exercised, the Contractor shall coordinate with the COR for selecting the samples from the CTS NCST Investigation’s evidence database, and for transferring custody and shipping the samples to the Contractor. The Contractor shall be responsible for any shipping and preparation costs of the samples and shall produce a technical letter with a list of assumptions, a list of standardized procedures, and results of the testing including electronic data format of the results prior to the delivery of the Draft Geotechnical Interpretive Report (Deliverable 4) that will include this information as well as the Draft Uncertainties Report (Deliverable 6).

Solicitation Instruction: For the purposes of responding to this Request for Quotation, the Contractor may consider the list and number of soil and rock testing suggested in Table I, or propose recommended alternatives, and provide unit costs, and total costs for the assumed number of tests.

Table I. List of Additional Potential Laboratory Testing.

(for Cost Estimates)

(for Cost Estimates)

The Contractor shall provide the COR a testing plan within one month of option exercise (Deliverable 9). The Contractor shall execute the testing plan and produce test results and a Preliminary Report (Deliverable 10) to be followed by a Final Report (Deliverable 11). For all Deliverables, the Contractor shall expect one round of comments by the Government within ten (10) days of receipt of the Deliverable, to be addressed by the Contractor within ten (10) days of receipt of comments.

Data and evidence used by the Contractor shall be handled with the rules and restrictions presented in Appendix B.

Deliverables Schedule for Task 3:

Performance Requirements Summary for Option 3:

Levels Methods of Surveillance

Task 3 Testing Plan

Task 3 Test results

Optional Task 4: Detailed Geotechnical Evaluation – Tidal and Storm Fluctuations The Contractor shall develop a combination of: (i) conceptual/schematic; (ii) empirical; and (iii) simplified analytical models to perform an independent soil-structure interaction (SSI) evaluation of: Tidal and storm fluctuations on the CTS foundations.

The Contractor shall coordinate, with the COR, the development of parameters needed for this evaluation. The Contractor shall provide a technical draft report for each evaluation listed above this task (Deliverable 12) that shall include all bases for loading, material/structural/geotechnical properties, schematics, sections, drawings and data used or developed, technical approach, and input and results in electronic format to the COR.

This reporting shall include uncertainty quantification in accordance with Task 2.4. The Contractor shall anticipate two rounds of comments by the COR and shall provide a final report addressing these comments (Deliverable 13). For budgetary purposes, the Contractor shall assume that the detailed evaluations shall be performed using simplified and semi analytical numerical models for three 2-D sections to be selected in coordination with the COR. Basic input assumptions (e.g., geometry and material properties) will be provided to the Contractor for development of these models.

Deliverables Schedule for Task 4:

Performance Requirements Summary for Option 4:

Levels Methods of Surveillance

Task 4 Detailed tidal and storm fluctuations Geotechnical Evaluation draft report

Task 4 Detailed tidal and storm fluctuations Geotechnical Evaluations final report

Optional Task 5: Detailed Geotechnical Evaluation – Foundation Degradation The Contractor shall develop a combination of: (i) conceptual/schematic; (ii) empirical; and (iii) simplified analytical models to perform an independent soil-structure interaction (SSI) evaluation of: Degradation in foundation capacity (if any) over the CTS lifetime.

The Contractor shall coordinate, with the COR, the development of parameters needed for these evaluations. The Contractor shall provide a technical draft report for each evaluation listed above this task (Deliverables 14) that shall include all bases for loading, material/structural/geotechnical properties, schematics, sections, drawings and data used or developed, technical approach, and input and results in electronic format to the COR.

This reporting shall include uncertainty quantification in accordance with Task 2.4. The Contractor shall anticipate two rounds of comments by the COR and shall provide a final report addressing these comments (Deliverable 15). For budgetary purposes, the Contractor shall assume that the detailed evaluations shall be performed using simplified and semi analytical numerical models for three 2-D sections to be selected in coordination with the COR. Basic input assumptions (e.g., geometry and material properties) will be provided to the Contractor for development of these models.

Deliverables Schedule for Task 5:

Performance Requirements Summary for Option 5:

Levels Methods of Surveillance

Task 5 Detailed Degradation in foundation capacity Geotechnical Evaluation draft report

Task 5 Detailed Degradation in foundation capacity Geotechnical Evaluation final report

Optional Task 6: Detailed Geotechnical Evaluation - Adjacent Construction The Contractor shall develop a combination of: (i) conceptual/schematic; (ii) empirical; and (iii) simplified analytical models to perform an independent soil-structure interaction (SSI) evaluation of static and dynamic impact of adjacent construction on CTS foundations which may include sheet pile driving, pile foundation installation and other construction activities. The evaluation shall include wave attenuation through the basement wall system (in-place support of excavation wall and permanent basement wall) and into the column foundations in the pool deck area, and earth pressures on the surrounding basement walls.

The Contractor shall perform the following tasks and submit a technical memorandum of the findings that shall be included in the final report: (i) review available information to be provided by NIST; (ii) collect and summarize vibration threshold data from US and international standards for human and structural disturbance and comparison of those to the CTS vibration characteristics per its structural model; (iii) evaluate available peak velocity data from adjacent construction to CTS and the wave attenuation within the footprint of the CTS using empirical functions; validate those with NIST-collected data; and compare them with other types of ground-induced vibrations; (iv) develop equivalent foundation input motions (in the form of accelerations or velocity wave forms or time histories, including potential incoherency effects) based on correlation of CTS recordings from construction activities that can be used for structural analysis; (v) develop earth/water pressure diagrams for three selected locations at the CTS basement wall with schematic representation of the adjacent walls and buildings; (vi) develop parameters for a 2D SSI numerical analysis of the basement wall and support the development and analysis using this model (to be done by NIST).

The Contractor shall coordinate, with the COR, the development of parameters needed for this evaluation. The Contractor shall provide a technical draft report for each evaluation listed above this task (Deliverable 16) that shall include all bases for loading, material/structural/geotechnical properties, schematics, sections, drawings and data used or developed, technical approach, and input and results in electronic format to the COR.

This reporting shall include uncertainty…