Statement of Qualifications GEOTECHNICAL

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Corporate Headquarters 500 Penn Center Boulevard, Pittsburgh, PA 15235 USA Telephone: 412.856.9700 | Fax: 412.856.9749 For more information, feel free to contact us at: [email protected] or 412-856-9700 COMPANY HISTORY

Founded in 1984, RIZZO Associates has grown into Water Resources Engineering: Dam Inspection, an award-winning engineering and consulting firm Analysis, and Design; Water and Waste Water Conveyance/ specializing in , Seismic and Transmission and Storage; and Watershed Comprehensive Structural Engineering, Water Resources Engineering, Studies and Plans. and Construction Management. RIZZO’s Founder and President, Dr. Paul C. Rizzo, P.E., has built the firm into one Construction Management: Cost Estimating of the leading consultants in civil engineering supporting and Scheduling; Quality Control/Quality Assurance; the design and analysis of power plants, , dams and Construction Monitoring and Inspection; Value other heavy civil structures. Engineering; Claim Analysis and Negotiation; and Agency Coordination. RIZZO employs more than 300 engineers, scientists and technicians around the world, many with advanced OUR CORPORATE COMMITMENT degrees in their respective areas of expertise. Company headquarters are located in Pittsburgh, Pennsylvania, with RIZZO takes great pride in our commitment to providing offices in Albuquerque, New Mexico; Columbia, South personal and professional services in a responsive, high- Carolina; St. Louis, Missouri; Oakland, California; and quality manner. There is no doubt that our services are a Tarrytown, New York. RIZZO also has affiliate and branch direct reflection of our corporate values and our individual offices located in Tucson, Arizona; Australia, The Czech capabilities, personalities, and experiences. Consequently, Republic; Russia; Santiago, Chile, Buenos Aires, Argentina, we strive to build client/consultant relationships that are Lima, Peru, London, England, and the United Arab mutually rewarding. Establishing close relationships with Emirates, serving local clients. our clients is a key element to reaching total solutions. We cultivate each client relationship from the initial concept The technical focus and majority of RIZZO’s experience and to completion, often maintaining this contact years after a expertise is primarily in the following practice areas: single project is completed.

Geotechnical Engineering: Investigation Planning, We believe successful consulting is achieved through a Implementation, and Results Analysis; Ground balance of significant applicable experience, a working Improvement Techniques; Slope Stability; -Structure knowledge of today’s best practices, and access to cutting Interaction; ; Liquefaction Potential; edge technology. We offer expertise that goes beyond Instrumentation and Monitoring; and Hazard Remediation. “state of the practice,” to include innovative solutions using techniques usually found in academic and research Structural Engineering: Deep and Shallow institutions. Accordingly, we take a proactive approach to Design; Vibration Analysis; Comprehensive Seismic Load staff recruitment and development, and maintain close ties Development, Analysis, and Design; Special/Unique to universities and national laboratories. Structure Analysis and Design; Nuclear Power Plant Structure and Equipment Analysis and Qualification; and Fragility Analysis. GLOBAL EXPERIENCE RIZZO personnel have been building up national and Civil Engineering: Site Layout and Design; Roadway and international relationships for several decades. We have Intersection Design; Surveying; Drainage; and Storm Runoff worked on sites throughout the United States, South Analysis and Design. America, Europe, the Middle East, Africa, Australia, and

1 1.0 COMPANY HISTORY

Asia. We have been exposed to a variety of site conditions because of our international project exposure. We have Image Description faced many unusual situations, including access problems, adversary adjacent property owners, political strife, and public hearings in several languages. We have served a variety of clients, including various governments, global companies, multinational corporations, and international lending agencies and banks.

QUALITY ASSURANCE RIZZO has a fully implemented internal Quality Assurance/ Quality Control System, established and qualified in accordance with the requirements of the American Society of Mechanical Engineers, (ASME) NQA-1-1994, “Quality Assurance Requirements for Nuclear Facility Applications,” NQA-1-2008 (and the NQA-1a-2009 Addenda), “Quality Assurance Requirements for Nuclear Facility Applications” Standard. The Standard was selected as the basis for our QA Program because it establishes quality assurance standards for activities ranging from data acquisition through design to records administration. Particular emphasis is placed on documentation and verification procedures for field operations, and for analysis and calculations, which result in traceability and transparency. Within the last four years, the RIZZO QA Program has been audited by at least 10 clients as part of their supplier approval process. RIZZO is also certified under the ISO- 9000 Program.

RIZZO’S EXPERTISE Many of our engineers and scientists are registered professionals with advanced degrees in their respective fields of study. RIZZO senior engineers routinely mentor our emerging engineers to ensure that we provide an unwavering level of service. We embrace a hands-on approach with our projects, staff, and clients, and we believe that this blend of seasoned engineering experts, and bright, young talent, is essential when engineering for the future!

2 GEOTECHNICAL EXPERIENCE

RIZZO personnel have been involved in geotechnical including associated excavations. Typical geotechnical engineering projects for over 50 years, including analyses include settlement, , slope subsurface investigations; design and analysis; and stability, and site response for both deep and shallow construction inspection services. foundations. We have also performed numerous seepage and slope stability analyses for large excavations, RIZZO has extensive experience providing geotechnical including those located adjacent to dams and other water engineering services in the power generation industry resources facilities. We also perform two-dimensional in the U.S. We have also worked on numerous overseas and three-dimensional static and dynamic finite element projects, primarily in Europe, the Middle East, and analyses. RIZZO staff has the capabilities to perform all Southeast Asia. RIZZO’s experience includes working on all of these services in-house without support from external types of power generation facilities, including combined consultants or subcontractors. cycle gas fired power plants, hydroelectric power plants, nuclear power plants, and wind turbine generator facilities. Our experience includes design and evaluation of deep and shallow foundations, comprehensive vibration or seismic In particular, RIZZO has extensive experience in the load development, analysis, and design, and nuclear power following areas: plant structure and equipment analysis and qualification. RIZZO personnel are experienced with the design and • Geologic and Geotechnical Investigations; analysis of steel and concrete structures. • Geotechnical Engineering and Analysis RIZZO also performs site layout and design, surveying, • Seismic and Vibration Analysis drainage design, storm runoff analysis and design, and • Instrumentation Monitoring site . We routinely prepare design drawings and • Construction Oversight and Support specifications for projects and have engineers licensed throughout the United States and overseas. GEOLOGIC & GEOTECHNICAL INVESTIGATIONS ASSESSMENT AND ANALYSIS RIZZO routinely performs and/or oversees comprehensive geological and geotechnical subsurface investigations RIZZO provides seismic hazard assessments, including for all types of structures including power generation review of regional and tectonics, fault studies, facilities, dams, tunnels, and other heavy civil facilities. We preparation of catalogues, analysis of also perform on-site pumping tests to provide the data seismicity (including study of faults and active tectonic necessary to design a dewatering system and associated features, development of seismic source zones, and seepage analyses. analysis of their seismicity), performing deterministic and probabilistic methodologies, and specialized studies such as assessment of the effects of near-field and GEOTECHNICAL ENGINEERING AND micro-earthquake monitoring. Typically, this assessment ANALYSIS provides exceedance probabilities and uncertainty bounds for peak ground acceleration and ground motion spectra. RIZZO routinely performs static and dynamic geotechnical and structural analyses for power generation facilities

3 2.0 GEOTECHNICAL EXPERIENCE

RIZZO offers a full line of services for dynamic evaluation of Structures, Foundations, and Components. Our services include: design of facility upgrades and modifications; assessment of coupled building and foundation models; soil-structure interaction and soil-structure interaction with incoherent ground motion; machine induced vibrations; and seismic qualification. RIZZO provides expertise in soil- structure interaction, including interpretation of results from field and laboratory investigations of subsurface , vibratory ground motion, and site seismic response.

INSTRUMENTATION & MONITORING RIZZO has extensive experience with the design, installation, and data evaluation of geotechnical instrumentation. This experience includes the installation, operation, and monitoring of (vibrating wire and Casagrande), , survey monuments, seepage flumes, and crack meters.

We recently prepared and supervised the instrumentation and monitoring program for the refilling of the Taum Sauk Upper Reservoir Dam. We also performed extensive instrumentation monitoring for the Lake Side Power Project, Smithland Hydroelectric project, Saluda Dam Remediation, and Wyaralong Dam Construction.

CONSTRUCTION OVERSIGHT & SUPPORT RIZZO routinely supports and oversees projects during the construction phase including cost estimating and scheduling, quality control and quality assurance, construction monitoring and inspection, value engineering, and engineering during construction.

4 3.0 PROJECTS

KCB2 BORSSELE NPP BORESELE, NETHERLANDS

RIZZO performed a detailed site characterization and subsurface investigation for the Safety Analysis Report required for the proposed nuclear power plant. Site characterization activities include the following:

Field Investigation: Onshore boring program to support and develop Generation III designs of 1000 to 1600 MWe rating. The investigation will provide geotechnical and geohydrological information to the potential technology vendors to allow them to identify and mitigate ground risks; onshore geophysics and geotechnical measurements; and laboratory program per USNRC RG 1.138.

2.5 Geology, Seismology, and Geotechnical: Describing the site geological setting and performing an evaluation of the seismic conditions, including PSHA, potentially affecting the design of foundations and structures. A screening level field work program (borings, geophysical testing, and laboratory testing) and analysis was performed to support evaluation of the ground risk regarding this site for the plant and its related safety structures – containment and safeguard buildings, power supply, and essential cooling.

Work was performed in accordance with RIZZO’s Quality Assurance Program in compliance with 10CFR 50, Appendix B and ASME NQA-1-2008 (and the NQA-1a-2009 Addenda). The Program has been audited and approved by many Clients.

5 BELL BEND NPP BERWICK, PENNSYLVANIA

RIZZO performed a detailed site characterization and subsurface investigation of the Bell Bend Nuclear Power Plant (BBNPP) site. Midway through the USNRC review, the client elected to make significant changes to the site layout and orientation, requiring RIZZO to complete an additional field investigation to characterize the new location of the plant buildings.

The Geotechnical Field Investigation included Field Reconnaissance and Utility Clearance, Soil Sampling, Field Investigation Program to site the EPR per RG 1.132, Rock Coring to 400 feet below ground surface (bgs), Surface Geophysical Survey, Down-hole Geophysical Survey, Pressure-meter Testing, Abandonment, and Laboratory Test Program per RG1.138. A paleoseismic evaluation was conducted to locate evidences of past seismicity in the Region. This evaluation included a review by boat of the deposits along the Susquehanna River and its tributaries, the update of the local geological mapping during the Site Reconnaissance, as as an assessment of the high-resolution LIDAR data covering the site and its environs.

Data collected to support the Civil Engineering and Hydrogeological Field Investigation includes Field Reconnaissance, Soil Sampling, Shelby Tube Sampling, Borehole advancement to 600 feet below ground surface, Rock Coring Analysis, Down-hole Televiewer and Head Flow Logging, Packer Testing based on Televiewer findings, Open-hole Borehole Development, Monitor Well Installation, Monitor Well Development, Slug Tests, Step Drawdown and Pumping Tests, Groundwater Elevation Measurements and Water Quality Survey, Surface Water Elevation Measurements and Water Quality Survey, and Stream Flow Measurements.

6 PENNSYLVANIA TURNPIKE COMMISSION GEOTECHNICAL SERVICES CONTRACT PENNSYLVANIA

RIZZO Associates provided geotechnical engineering SUBSURFACE INVESTIGATION FOR services to the Pennsylvania Turnpike Commission SYSTEM WIDE FARE COLLECTION (PTC) on an as-requested basis. RIZZO provided WAREHOUSE supplemental staff of qualified personnel to serve as an extension of the PTC’s in-house geotechnical staff. EVERETT TOWNSHIP, BEDFORD COUNTY, Involvement on individual assignments ranged in PENNSYLVANIA time from a few hours to several days or weeks and The purpose of this investigation was to examine involved personnel from any or all level(s) of payroll the subsurface conditions of the site and to provide classification. recommendations for foundation design and construction, site preparation, and other construction Example projects include: considerations. The scope of this subsurface exploration included a reconnaissance of the site; a SUBSURFACE INVESTIGATION FOR E-Z review of geologic maps of the area; the drilling of PASS GANTRY SYSTEM seven (7) standard geotechnical test borings within the foundation footprint for the proposed structure; and JEFFERSON BOROUGH, ALLEGHENY COUNTY, an engineering evaluation of the subsurface materials PENNSYLVANIA relative to the proposed construction. The purpose of this investigation was to examine the subsurface conditions of the site and to provide recommendations for foundation design and construction. The scope of this subsurface exploration included a reconnaissance of the site; a review of geologic maps of the area; the drilling of twelve (12) standard geotechnical test borings within the foundation footprint of the proposed structure; and an engineering evaluation of the subsurface materials relative to the proposed construction.

7 LAKE SIDE POWER PROJECT OREM, UTAH

RIZZO was retained by Siemens Power Generation, Inc. (Siemens) to perform a subsurface investigation, design a foundation improvement system, structural analysis, and prepare construction drawings and specifications at the Lake Side Power Project (LSPP) Site near Orem, Utah.

The project consists of the construction of a combined cycle gas fired power generation station. RIZZO performed a geotechnical exploration that consisted of drilling 11 exploratory borings and performing laboratory tests on representative soil samples. This information, along with the loads from the power plant (provided by Siemens), allowed RIZZO to identify potential settlement issues and to develop a foundation improvement plan to minimize these concerns.

RIZZO was also responsible for the instrumentation program and field monitoring once foundation improvement activities began at the site. RIZZO procured, installed and monitored 21 vibrating wire piezometers and 6 settlement sensors to assess the impact the surcharge fill material had on the site. A RIZZO representative was on- site to observe the construction activities associated with the foundation improvement design in order to ensure the contractor was following the drawings and specifications.

The site proved to be very challenging from an analysis prospective. The top 30 feet of soil consisted of over consolidated material while the next 70 feet were under consolidated material. In addition, artesian conditions were present below 100 feet. Seismic conditions also had to be accounted for at this site. RIZZO determined that the existing condition of the foundation soil was not suitable for building the station. Therefore, the entire site was preloaded with surcharge material in order to compact the soils to 90% of the total expected settlement (between 3-to-4 feet in some places). This action will reduce the long term settlement experienced by the plant to an acceptable level. Wick drains were installed on four-foot centers (approximately 40,000 over 12 acres) to expedite the settlement.

8 CALLAWAY UNIT 2 NPP SITE CALLAWAY COUNTY, MISSOURI

RIZZO was responsible for performing a detailed site characterization and subsurface investigation of the site. This work included subsurface drilling, laboratory testing, and preparation of the complete Safety Analysis Report (SAR) Chapter 2 and the Environmental Report for the Callaway Unit 2 Combined Operating License Application (COLA).

Work performed by the RIZZO Team included developing Chapter 2.5-Geology, Seismology, and Geotechnical of the COLA. Investigations were conducted to describe the site geological setting and perform a detailed evaluation of the seismic conditions, including PSHA, potentially affecting the design of foundations and structures. An extensive field work program (borings, geophysical testing, and laboratory testing) and analysis was performed to support siting of the US-EPR and its related safety structures – containment and safeguard buildings, emergency power, and essential cooling. An extensive survey of the Missouri River and its tributaries was conducted to evaluate the region for evidence of paleoseismic events. The PSHA and its conclusions were reviewed and approved by a Senior- Level review committee.

All work was completed in accordance with RIZZO’s Quality Assurance Program in compliance with 10CFR 50, Appendix B and ASME NQA-1-1994. The Program was audited and approved by the Client.

9 CHILCA POWER PROJECT CHILCA, PERU

The Chilca Uno Project consists of three simple cycle natural gas power plants adding up to 542 MW of installed capacity. RIZZO performed subsurface investigations for Chilca I (174 MW) in 2005, Chilca II (174 MW) in 2007, and Simba (194 MW) in 2009. Based on the information provided from the investigations and the subsequent engineering evaluations, concrete mat foundations were recommended to support the Power Block at each plant. In addition, RIZZO provided construction supervision services as the foundation mats were constructed.

RIZZO was also in charge of reviewing seismic calculations submitted by the vendors of all major plant components within and around the three plants. Given the high seismicity of the region, site-specific factors of safety were developed for this Project, considering Peruvian (NTE) and American (UBC) building codes. RIZZO developed the Seismic Certification for Chilca I, Chilca II, and Simba.

10 WMAT RURAL WATER SUPPLY PROJECT WHITERIVER, ARIZONA

RIZZO performed a comprehensive geotechnical investigation for the pipeline, pump stations, and storage tanks planned for the proposed White Mountain Apache Tribe (WMAT) Rural Water System. The purpose of this investigation was to examine the subsurface conditions of the Site and to provide engineering recommendations associated with the proposed construction of approximately 50 miles of water supply pipeline and associated facilities. The scope of this subsurface exploration included a reconnaissance of the Site, the drilling of approximately 150 geotechnical test borings ranging from 10 feet to 50 feet deep along the pipe alignment, the installation of groundwater monitoring , and an engineering evaluation of the subsurface materials encountered during the investigation.

Field exploration was coordinated with personnel from the WMAT, local utility providers, the Arizona Department of Transportation, and the Bureau of Indian Affairs under a work plan reviewed and approved by the WMAT and the Bureau of Reclamation. Drilling was completed in two phases, first with a truck mounted drill rig and later with a track mounted limited access drill rig. An extensive laboratory testing program was performed on recovered samples and engineering recommendations for the pipeline and associated structures were provided to Morrison Maeirle Inc, the lead pipeline designer. Engineering recommendations were provided in a Geotechnical Baseline Report and included bearing capacity, lateral earth pressures, suitability of materials encountered for used as backfill and bedding materials, corrosivity, drainage, and constructability concerns.

11 VISAGINAS NPP VISAGINAS, LITHUANIA

RIZZO performed a comprehensive subsurface ABWR at the Visaginas Nuclear Power Plant. Therefore, investigation for the proposed layout of a ABWR at work is being performed in accordance with RIZZO’s Visaginas Nuclear Power Station (VNPP), using GE-Hitachi Quality Assurance Program in compliance with 10CFR 50, technology. RIZZO analyzed the field data and laboratory Appendix B and ASME NQA-1-2008 (and the NQA-1a-2009 testing results and prepared a geotechnical report Addenda). The Program has been audited and approved by including settlement analyses. many Clients including field and laboratory surveillances by Visagino Atomine Elektrine(VAE). RIZZO personnel performed a comprehensive subsurface investigation to determine sub-surface conditions at the proposed layout location. The field investigation included:

• A review of previous investigations in the area • Fifty-seven (57) geotechnical borings between 50m and 220m deep sampled using Pitcher barrel Shelby Tube, soil coring, and rock coring techniques. • Thirty-five (35) CPTu tests up to a depth of 45m. • Twenty-five (25) in-situ pressuremeter tests. • P-S Suspension Velocity logging at 8 boring locations • Gamma-Gamma Density logging at 8 boring locations • Natural Gamma Surveying at 54 boring locations • Forty-eight (48) groundwater wells drilled in 10 clusters of 4 to 6 wells with a field water quality survey performed after the development of each well • Nine (9) 72-hour pumping tests to investigate the Hydrogeologic activity of the site

A laboratory testing program was developed by RIZZO for geotechnical and water samples obtained during the field investigation. Undisturbed Shelby Tube and rock core special-care samples were sent to four independant labs in the United States for strength, index, static, and dynmaic property testing, while disturbed special-care soil samples were used soley to determine index properties. One water sample obtained at the end of each pumping test was tested for pH, sulfate, chloride, and salinity at an independent laboratory in Vilnius, Lithuania.

The results of this geotechnical investigation are anticipated to be used in the final layout and design of the

10 TAUM SAUK UPPER RESERVOIR

Ameren Missouri contracted RIZZO to provide a subsurface predict seismic stresses during a design basis earthquake investigation and forensic analysis to determine the event. All calculations, design reports, and construction root cause for the failed Upper Reservoir at the Taum documents were reviewed by the FERC and an Sauk Pumped Storage Facility. RIZZO then performed Independent Board of Consultants (BOC). RIZZO formally conceptual, and then a detailed design of the new dam, in presented various design alternatives to both the FERC and addition to managing the construction of this $380 million the BOC for review and approval. rebuild. The selected rebuild consisted of constructing an RCC dam. The final Project involved the placement of 2.7 CONSTRUCTION MANAGEMENT million cubic yards of RCC. During construction, the Taum Sauk Upper Reservoir was the largest RCC dam under As Construction Manager (CM), RIZZO retained a full staff construction in the U.S. The Taum Sauk Upper Reservoir of on-site personnel, including: engineers, construction Rebuild Project won the 2010 USSD Award of Excellence supervisors, AutoCAD personnel, surveyors, and for Construction Projects. RIZZO’s scope of work is detailed environmental compliance and safety personnel. RIZZO as follows: was the single point of contact for the Project and was the Owner’s Representative on-site. Additional duties included SUBSURFACE INVESTIGATION/FORENSIC coordinating and managing the work of the Contractor. RIZZO’s responsibilities included: scheduling, budget and ANALYSIS cost control, inspection of the Contractor’s work, approval RIZZO conducted a subsurface investigation and detailed of Pay Applications, contract administration, preparation forensic engineering analysis to determine the cause of contract documents and technical specifications, health of the failure. Analysis included stability and seepage, and safety programs, Request for Information and approval dam breach (to determine time and to evaluate mode of of Project Submittals. RIZZO provided on-site supervision failure), complete review of instrument control systems, and coordination of all construction activities. These sediment transport, detailed mapping of breach zone, activities included schedule, budget and cost control, drilling and sampling of remaining portions of the approval of submittals, responses to RFIs, Cost Estimates, dike, and a subsurface investigation to analyze both preparation of Bid Documents, Contract Administration, the existing dike and its foundation and the potential Document Control, Construction Monitoring, Cash Flow foundation of a new dam. Projections, review of Value Engineering proposals, Claim Analysis and Negotiation, Dispute Resolution, Performance Analysis, and Payment Application Approvals. DESIGN ENGINEERING RIZZO prepared both conceptual and detailed designs for the Rebuild, including analyzing and developing various options to rebuild the Project. Construction costs and schedule, as well as potential regulatory challenges with each option, were fully evaluated. RIZZO evaluated several alternates for the rebuild and selected a symmetrical (0.6H to 1.0 V upstream and downstream) RCC dam. RIZZO developed an appropriate seismic design basis for the site and completed a series of finite element analyses to

11 BARAKAH NPP UNITED ARAB EMERATES

RIZZO completed an evaluation of potential locations support siting of the plants and their related safety throughout the United Arab Emirates using multiple structures and components. RIZZO formed a SSHAC siting criteria (including seismic activity, availability of committee of international experts to independently water, environmental impacts, and population density review the findings of the PSHA and to make criteria) along with a mathematical ranking model to recommendations for application to the site. identify appropriate locations for the siting of NPPs. RIZZO has completed site characterization activities including All work was completed in accordance with RIZZO’s Quality comprehensive subsurface investigations for two of Assurance Program in compliance with 10CFR 50, Appendix the highest ranked sites, and has completed detailed B and ASME NQA-1-1994. The Program was audited and investigations for additional plants at the Barakah site. approved by many Clients These sites pose difficult working conditions including remote locations and weather extremes.

Site characterization activities included the following:

• Field Investigation: Onshore boring program – more than 160 borings to support and develop Generation III designs of 1000 to 1600 MWe rating. The investigation provided geotechnical and geohydrological information to the potential technology vendors to allow them to identify and mitigate ground risks. The investigation included multiple facets for a complete assessment: Geological mapping and review for paleo-seismic evidence, offshore and onshore boring programs; onshore and offshore geophysics and geotechnical measurements; oceanographic bathymetric survey; and a laboratory program per USNRC RG 1.138. The Korean APR1400 was subsequently selected as the nuclear technology, and the PSAR was adapted to APR1400 requirements and parameters. A follow- on geological and geotechnical investigation was concluded in 2012 to evaluate the site for two additional APR1400 units. • PSAR Section 2.5 Geology, Seismology, and Geotechnical: Investigations were conducted to describe the site geological setting and perform a detailed evaluation of the seismic conditions, including a Probabilistic Seismic Hazard Analysis (PSHA), which potentially affect the design of foundations and structures. An extensive field work program (geological mapping, search for paleoseismic evidences, geotechnical borings, geophysical testing, and laboratory testing) and analysis was required to 12 SALUDA DAM COLUMBIA, SOUTH CAROLINA

RIZZO was retained by South Carolina Electric & Gas Construction of the rockfill portion of the dam entailed (SCE&G) as the Design Engineer and Construction Manager placement of 3.5 million cubic yards of soils and rock. The for the remediation of Saluda Dam, located in Columbia, RCC section for the dam required 1.3 million cubic yards South Carolina. Initially, RIZZO performed numerous of RCC and mass concrete. All materials were produced subsurface investigations of the site to evaluate the static on-site. Daily blasting in the quarry, supervised by RIZZO and dynamic stability of the dam. The $275 Million Project geologists, produced rock for the construction. Shot rock was completed in 2005 and, at that time, was the largest was then delivered to the on-site crushing plants, which active dam construction project in the U.S. The Saluda Dam supplied various aggregates for the RCC, rockfill, and filters. received the Outstanding Civil Engineering Achievement (OCEA) as the most outstanding project for 2006 as chosen RIZZO was the single point of contact for the project and by the American Society of Civil Engineers (ASCE). provided CM services that included a Document Control System, schedule responses to RFIs, cost estimates for The Saluda Dam, which impounds Lake Murray, is owned extra work, preparation of initial bid documents, contract and operated by SCE&G, and is located on the Saluda River, administration, construction monitoring of all activities, 10 miles upstream of Columbia, South Carolina. The dam, cash flow projections, review of Value Engineering completed in 1930, is 211-ft. high and 7,800-ft. long. It proposals, claim analysis and negotiation, dispute was originally constructed for hydroelectric generation, resolution, performance analysis, and payment application but today the lake is also the source of cooling water for approvals. RIZZO personnel numbered approximately 30 the coal-fired McMeekin Steam Electric Plant, a source of people and included engineers, geologists, surveyors, drinking water for the region and the largest recreation design and CADD personnel, construction supervisors, RCC facility in Western South Carolina. supervisors, environmental compliance personnel, safety personnel, and instrumentation engineers and technician To evaluate effectiveness of the dewatering system and monitors. monitor dam safety during excavation, hundreds of fully- automated inclinometers and piezometers were installed in the dam. These instruments provided a continuous real- time stream of data and helped engineers to make timely decisions about safety and progress of construction.

With space constraints precluding open- excavation, several retaining walls were required to support the 50-ft. deep excavation for the new dam. The project included construction of a 1,500-ft. long and 40-ft. high tie-back , a 45-ft. high soil bentonite cut-off wall, a 40- ft. high soil-nail wall, and a local jet-grouted wall. Because of highly irregular and often unpredictable profile, the wall designs had to be revised in several instances. RIZZO worked closely with the contractor value- engineering the walls to fit site conditions.

13 AKKUYU NPP TURKEY

RIZZO performed a detailed site characterization and subsurface investigation for the Safety Analysis Report of the site in accordance with Turkish (TAEK) and IAEA requirements.

Site characterization activities include the following: Field Investigation: Onshore boring program to sup- port the AES-2006 design. The investigation will pro- vide geotechnical and geo-hydrological information to identify and mitigate ground risks; onshore geophysics and geotechnical measurements; and laboratory pro- gram per USNRC RG 1.138.

2.5 Geology, Seismology, and Geotechnical: De- scribing the site geological setting and performing an evaluation of the seismic conditions, including PSHA, potentially affecting the design of foundations and structures. A screening level field work program (borings, geophysical testing, and laboratory testing) and analysis was performed to support evaluation of the ground risk regarding this site for the plant and its related safety structures – containment and safeguard buildings, power supply, and essential cooling.

Work was performed in accordance with RIZZO’s Quality Assurance Program in compliance with 10CFR 50, Appendix B and ASME NQA-1-2008 (and the NQA-1a-2009 Addenda). The Program has been audited and approved by many Clients.

12 SMITHLAND HYDROELECTRIC PROJECT SMITHLAND, KENTUCKY

American Municipal Power, Inc. (AMP) is currently subsurface materials; performing slope stability analyses; constructing a new hydroelectric generating plant on and developing design drawings and associated technical the Ohio River at the site of the Smithland Dam. RIZZO specifications. Slope stability analyses were performed for designed the excavation and associated dewatering system several sections of the excavation for the following loading for the project as part of the design build team. The conditions: end of construction, steady seepage, 100-year subsurface investigation and the design of the remaining flood, sudden drawdown, and earthquake. The excavation components of the project were performed by other design had to meet both FERC and USACE stability criteria, members of the team. and had to be approved by the Owner’s Engineer, Board of Consultants, FERC, and the USACE. The proposed hydroelectric plant will be constructed adjacent to the east side of the weir wall of the dam. During construction, RIZZO provided safety The plant will include three (3) turbines with a combined monitoring training to on-site personnel, directed the design output of 72 MW. The existing dam is owned by the performance monitoring of the excavation, and interpreted USACE, and the project will be regulated by the FERC. and reported instrumentation data from the network of 10 inclinometers and 30 vibrating wire piezometers. The projected consists of the following components: In addition, RIZZO provided engineering support during large flood events and for changes to the slope and access • Marine Cofferdam; configuration as required by changing construction • ; conditions. • Dewatering System; • Excavation; • Flooding Structure; and • Instrumentation.

As part of the dewatering system design, RIZZO conducted pumping tests at the site to better characterize the hydrogeologic properties of the subsurface materials at the site.

The design of the dewatering system consisted of performing two-dimensional seepage analyses using the Seep2D program, and performing three-dimensional seepage analyses using the MODFLOW program. The results of these analyses were used to design the dewatering system for the project that consisted of the installation of 65 36-inch diameter deep wells.

The excavation design consisted of evaluating the subsurface conditions of the site from existing geotechnical data; assigning parameters to the

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