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    Modelling for safe nuclear operation in the USA

    The United States of America is the world’s largest producer of nuclear power, accounting for more than 30% of worldwide nuclear generation of electricity. In 2018, the country’s nuclear reactors produced 807 billion kWh or about 20% of total electrical output. There are three reactors under construction that are expected to come online in 2020. To help with construction and operating licences for the three new builds, a joint RSK–Radiation Safety & Control Services, Inc. team travelled to Texas and Maryland.

    RSK specialists wrote sections of the final safety analysis reports and environmental reports relating to groundwater issues for the Calvert Cliffs Unit 3, South Texas Project Unit 3 and South Texas Project Unit 4 sites. Additionally, we responded to queries from the US Nuclear Regulatory Commission. Our report writing included a description of the regional, local and site-specific geological progression; the geological units and their hydrogeologic properties; and the regional and local current and projected use of groundwater and potential impacts such as lowered water levels, land subsidence and intrusion of brackish water owing to new withdrawals during operation of the new units.

    A site-specific conceptual model defined the hydrogeologic parameters that would control the transport of liquid radionuclides if an accidental release to the environment were to occur. The concentrations of specific radionuclides were estimated from an assumed accidental release that might be transported to the site boundary in groundwater and surface water, considering the effects of advection, adsorption, dispersion, dilution and radioactive decay within the contaminant flow path.

    Work is ongoing; however, the detailed groundwater monitoring programmes will be implemented throughout the operating period of the plants to evaluate changes in groundwater levels and flow paths. This will indicate changes in groundwater radiochemical quality that may indicate an undetected spill or leak of radionuclides and allow the design of an effective plan for managing any unintended release into the environment.

    • Location: United States of America
    • Project status: Complete
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    📣 We are SO excited for the launch of the new kit for @cafcofficial with #RSKgroup as the official front of shirt sponsor

    ⚽ A retro-inspired design with the classic Charlton Red with RSK #spotted on the front

    👏 "We Are One Club! A big thank you to all those members of the Charlton family who came together to help launch our 22/23 Castore home kit" - Charlton Athletic Football Club

    #cafc #rskfamily #football #sponsor
    ...

    📸 #selfiesonsite 🤳

    Ryan Dunderdale, Senior Surveyor at Central Alliance, providing technical support and on-site training to datum plate install teams down in Bristol.

    Want to join our team? View our latest opportunities 👉 www.rskgroup.com/careers

    #RSKgroup #behindthescenes #meettheteam #RSKfamily #RSKonsite #engineering #construction
    ...

    🌟 In the June edition of our #employeespotlight, we spoke with with Rosie Pearce at Stephenson Halliday and Carmen Snowdon at WRc Group to find out about their recent achievements 🏆

    👏 Congratulations to you both!

    Click the link in our bio to find out more!

    #rskfamily #employeeapprecitation #team #landscapeinstitute #instituteofwater #architecture
    ...

    "If you don’t feel valued, represented and respected in your workplace, then inevitably your #wellbeing will suffer.”

    📌 In our latest edition of #ADayInTheLife, we spoke with Ellen Lapworth-Maisey, Wellbeing, #Equality, Diversity and Inclusion Manager at RSK – a fascinating position that helps to create an inclusive and empowering #culture for all RSK staff.

    Click the link in bio to learn more!

    #RSKGroup #RSKfamily #diversity #inclusion #mentalhealth
    ...

    🚶 𝗣𝗲𝗱𝗼𝗺𝗲𝘁𝗲𝗿 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲 𝟮𝟬𝟮𝟮 𝗰𝗼𝗻𝗰𝗹𝘂𝗱𝗲𝘀 𝗮 𝘀𝘂𝗰𝗰𝗲𝘀𝘀

    #RSKSteps came to an end on Tuesday 31 May after a month of stepping adventures.

    𝗜𝗻 𝗻𝘂𝗺𝗯𝗲𝗿𝘀:
    ✔️1449 participants
    ✔️332,268,416 steps
    ✔️£1500 raised for our chosen charity, MIND!

    Read more about this fantastic challenge in our bio!

    #RSKGroup #RSKfamily #wellbeing #health #mentalhealth #walking
    ...

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