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SC&A is an employee-owned small business headquartered in Vienna, VA, providing environmental and energy consulting services since our founding in 1981.


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7/2016 - Robert Anigstein, a Senior Health Physicist with SC&A, along with coauthors Michael Erdman and Armin Ansari had an article published in the June Health Physics Journal, titled “Use of Transportable Radiation Detection Instruments to Assess Internal Contamination From Intakes of Radionuclides Part I: Field Tests and Monte Carlo Simulations.”

6/16/2016 - Mark Krohn, Vice President and Leader of SC&A’s NORM Practice, died Wednesday. Mark was a nationally-recognized expert in providing training on NORM compliance in the oil and gas industry. Anybody who met Mark quickly learned what a caring, respectful and modest person he was. He will be greatly missed by all of his colleagues at SC&A.

12/2015 - SC&A has been awarded a three-year contract by the U.S. Department of Homeland Security (DHS), Federal Emergency Management Agency (FEMA) to provide Chemical, Biological, Radiological, Nuclear and High-Explosive (CBNRE) subject matter experts and technical support for programs managed by the Agency’s CBRNE Office.

11/2015 - SC&A is pleased to announce that we have acquired EC/R, Inc. of North Carolina. With this acquisition, we will be able to provide enhanced support to our Air Quality clients.

11/2015 - SC&A’s Juan Maldonado is publishing an introduction to the emerging Airport Carbon Accreditation (ACA) program in EM, the Air & Waste Management Association’s monthly magazine. Read an advance copy of the article here. The ACA program has been adopted by more than 125 airports in Europe, Asia, Australia, and Africa and is taking off in North American airports. Mr. Maldonado is one of the first approved third-party verifiers in the U.S. to offer airport verification services under the ACA program.

9/2015 - SC&A was awarded another task order under the Enterprise Contract to support the NRC’s review of an application to amend an existing license to allow for in situ uranium recovery activities at the Kendrick Expansion Area in Wyoming. SC&A is supporting both the environmental review under the NEPA and the consultations with Native American Tribes under Section 106 of the National Historic Preservation Act.

9/2015 - SC&A has been awarded a 5-year contract from EPA to provide technical support in fulfillment of EPA’s responsibilities for oversight and enforcement of CERCLA and RCRA activities at federal and non-federal facilities within Regions 5 and 6.

9/2015 - SC&A was awarded a contract with the United States Coast Guard’s Office of Standards Evaluation & Development. The focus of this work will be on developing and testing a strategy for applying maritime air emissions models in combination as a means for producing reasonable, defensible national-level estimates of vessel-related air emissions using commercially available data.

8/2015 - SC&A was awarded a task order under our NRC Enterprise-wide IDIQ Contract to support the NRC’s refresh of its guidance related to the storage and transportation of spent fuel. We are looking at the feasibility of combining pairs of existing guidance documents and updating them.

8/2015 - SC&A is a member of the Cambridge Systematics, Inc. team that was awarded a task order from the Federal Highway Administration to perform Mobile Source Air Toxics (MSAT) Research, Analysis, & Outreach. Through this project, SC&A is preparing case studies that document examples of project-level MSAT estimation techniques and will prepare a white paper that identifies successes, challenges, and lessons learned in project-level MSAT analysis and the implications for future FHWA technical resources and guidance.

2/2015 - Kira Darlow, one of SC&A’s lead compliance specialists and auditors, has been certified by the Board of Environmental, Health & Safety Auditor Certification (BEAC).

11/2014 - SC&A was awarded a contract by the NRC to investigate where patients go, other than their homes, immediately following release from treatment with I-131 (primarily for thyroid cancer and hyperthyroidism). Treatment institutions will include both government facilities (e.g., VA hospitals) and non-government facilities distributed geographically throughout the United States. Patient destinations will include hotels, nursing homes, assisted living facilities, and correctional facilities. As an optional follow-on task, we would measure radiation exposures from treated patients to personnel at non-home locations.

10/2014 - SC&A has begun work as a subcontractor to PNTS Incorporated on a Phase I SBIR project for the Defense Threat Reduction Agency (DTRA) to develop a system for the indirect remote detection of shielded radiological and nuclear threats by non-atmospheric secondary effects in electromagnetic materials—in this case, a metamaterial. SC&A’s primary responsibility will be to model the radiation environment using an advanced Monte Carlo radiation transport code.

9/2014 - SC&A has been awarded a task order with the Centers for Disease Control and Prevention’s Radiation Studies Branch to develop a template for an exercise plan compatible with the DHS HSEEP guidance that a jurisdiction can adopt to exercise its Community Reception Centers through a drill.

9/2014 - On October 1, 2014, SC&A’s Juan Maldonado became one of three approved third-party verifiers in the U.S. to offer airport verification services under the Airport Carbon Accreditation (ACA) program. ACA is the popular carbon management program by the Airport Council International and has been adopted by 104 airports in Europe, Asia, Australia, and Africa since 2009. ACA is projected to be adopted by North American airports over the next few years.

9/2014 - SC&A was awarded a contract with the Arizona Department of Environmental Quality to develop a 2011 emission inventory for particulate matter in Yuma, Arizona. The product of this contract will be used to analyze Yuma area air quality and provide information for any future State Implementation Plan or maintenance plan development.

9/2014 - SC&A announces the formation of a new NORM/TENORM division to handle increased NORM work demand. The division is headquartered in Baton Rouge, Louisiana, and is headed by Mark Krohn, MHP, CHP. Mr. Krohn has more than 32 years of experience with radiation safety, including more than 24 years specializing in NORM/TENORM concerns. NORM/TENORM consulting services offered by SC&A include environmental assessments, field surveys, facility audits, and the development of worker protection plans, waste management plans, and licenses to perform various NORM/TENORM activities. Training courses offered by SC&A include NORM Awareness, NORM Surveyor, and NORM Radiation Safety Officer courses.

8/2014 - SC&A is pleased to announce the award to our team (SC&A and subcontractor Beckman & Associates) of a contract to provide the U.S. Nuclear Regulatory Commission (NRC) with Technical Assistance in Support of Agency Environmental and Reactor Programs. Our team will provide the NRC’s Office of Nuclear Reactor Regulation and Office of New Reactors with a wide range of engineering, environmental, and regulatory support in all aspects of nuclear power plant licensing, including NEPA compliance and license renewal. We will also assist in the review of the APR-1400 reactor design and support the Office of Federal and State Materials and Environmental Management Programs with environmental and safety reviews of non-power-reactor facilities, including low-level waste and uranium recovery facilities.

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