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Who We Are

SC&A is an employee-owned small business providing environmental and energy consulting services since our founding in 1981. We are headquartered in Arlington, VA, with satellite offices in Germantown, MD, and Chapel Hill, NC.


What’s New at SC&A

June 2021 - SC&A supports EPA’s Improvement in the Access, Transparency, and Timeliness of Air Toxics Data and Risk Information. The EPA announced a move to provide more frequent updates to national air toxics data and risk estimates. The agency’s new approach will provide an annual, more systematic update for all air toxics information, including emissions, ambient concentrations, national screening risk estimates, and monitoring data. SC&A has helped the EPA perform national air toxics assessments for over a decade, including support for EPA’s 2002, 2005, 2011, and 2014 National Air Toxics Assessments (NATA). SC&A is supporting this new effort by computing, compiling, and summarizing the risk results for all sources (point and nonpoint) for every census tract in the U.S.

May 2021 - SC&A Wins Continued Implementation and Strategies Support to the EPA. SC&A has been awarded a 5-year Implementation and Strategies Blanket Purchase Agreement (BPA) to provide technical support to the U.S. Environmental Protection Agency (EPA) implementation of Title I of the Clean Air Act and associated Titles. SC&A will provide technical assistance to support development, implementation, and communication of environmental policy. This will include support for program development, review and analysis of data, strategic monitoring and modeling, assessment of emission control techniques and strategies, cost and benefit analysis, and public outreach.

May 2021 - SC&A COVID-19 Support to FEMA and DC. Under subcontract to CNA, SC&A’s role has recently expanded to provide subject-matter expert support and serve as section lead in support of developing FEMA’s COVID-19 vaccination after action assessment. Under another subcontract to CNA, SC&A was awarded an extension to continue to support the District of Columbia’s response to the COVID-19 pandemic through Summer 2021.

May 2021 - SC&A Wins DHS Blanket Purchase Agreement (BPA). SC&A was recently awarded a BPA with the U.S. Department of Homeland Security (DHS). The multi-award contract has a projected 3-year period of performance.

May 2021 - SC&A to Support Environmental Emergency Planning. SC&A was awarded a subcontract under Mozaik Solutions to provide assistance in environmental emergency planning to a major strategic critical infrastructure client as part of their broader emergency management program development and planning effort.

May 2021 - SC&A to Help Update VA Radiological Emergency Plan. SC&A recently was awarded a subcontract from the Olson Group to support the State of Virginia to provide technical expertise in updating the State’s Radiological Emergency Response Plan.

May 2021 - SC&A Wins Continued NATA and RTR Program Support to the EPA. SC&A has been awarded a 5-year small business set-aside Blanket Purchase Agreement (BPA) to continue to provide support to the EPA’s Office of Air Quality Planning and Standards (OAQPS) for their National Air Toxics Assessments (NATA) and for risk assessment activities within the Risk and Technology Review (RTR) program. SC&A has been an integral part of EPA’s RTR program since the inception of the Urban Air Toxics Strategy in the 1990s; has modeled EPA's ongoing NATA since 2002; and has developed the Human Exposure Model (HEM) for these efforts, including a community assessment tool for Environmental Justice (EJ) analyses. Under this new 5-year BPA, SC&A will support all aspects of EPA risk assessments and will continue to develop and enhance exposure and risk models, including new and improved HEM capabilities, such as EJ tools and graphical capabilities, to enable EPA to identify potentially disproportionate impacts on communities.

April 2021 - SC&A SC&A Wins Task Order to Provide Technical Assistance to the NRC for the NEPA and NHPA Section 106 Reviews of Oglala Sioux Tribe’s Sites of Significance for the Crow Butte ISR License Renewal Application. This task order is issued under the NRC Enterprise Contract for Rulemakings, Licensing and Regulatory Actions for Materials and Waste, and Environmental Reviews for Materials, Waste, and Reactor Programs. SC&A will help the NRC complete its identification obligations under Section 106 of the National Historic Preservation Act (NHPA) and the National Environmental Policy Act (NEPA) to resolve any remaining contention in the adjudicatory proceeding for the Crow Butte in situ uranium recovery (ISR) license renewal request in Nebraska.

April 2021 - SC&A on Winning Team for $99M to Support DHS Countering Weapons of Mass Destruction Office. SC&A is part of the Noblis team just awarded a $99 million contract from the Department of Homeland Security (DHS) to enhance the Nation’s abilities to prevent terrorists and other threat actors from using weapons of mass destruction and help operational partners close capability gaps in safeguarding the Nation against chemical, biological, radiological, nuclear, and health security threats. Read more details in the Noblis press release.

January 2021 - SC&A Wins Task Order to Provide Support for the Clean Air Act Advisory Committee and Annual Clean Air Excellence Awards Programs. SC&A has won the first task order issued under the Analytical Support Services BPA for the EPA Office of Air and Radiation. Under this task order, SC&A will provide meeting facilitation support and other organizational and communication duties related to supporting the Clean Air Act Advisory Committee, its Permits, New Source Review and Toxics Subcommittee, and its workgroups. We will also provide support for the annual Clean Air Excellence Awards Program.

December 2020 - SC&A Reviews COVID Cloth Mask Studies for Potential Radiation Protection. SC&A is reviewing recent scientific literature on the ability of cloth masks to filter aerosol particles from another angle: Can cloth masks help protect against inhaled radioactive dust and aerosols during a radiological incident emergency? We are conducting this review for the CDC Radiation Studies Section as a subcontractor to SciMetrika, Inc.

December 2020 - SC&A Wins Continued Air Policy and Program Support to the EPA. SC&A has been awarded a 5-year Analytical Support Services BPA to provide policy analysis, policy, and program development; program review; and communications support to the EPA Office of Air and Radiation (OAR). SC&A will support OAR in evaluating the technological, financial, social, human health, environmental, and ecological effects of existing and potential future government policies and regulations. We will also provide public communications support about the potential effects of changes in government policy and facilitate potential resolution of issues identified by competing stakeholders. Task orders under this contract will help OAR conduct human health, welfare, ecological, and environmental impact assessments; conduct engineering and cost assessments of pollution control equipment and production processes; and provide technical support and analysis on implementation of air emission control programs, policies, and regulations.

December 2020 - SC&A Completes Streamlined NEPA Analysis under New CEQ Rules. SC&A has completed an air pollutant and greenhouse gas National Environmental Protection Act (NEPA) analysis for the U.S. Bureau of Land Management (BLM) for proposed natural gas wells in Alabama. This was the first analysis for BLM that conforms to the revised NEPA regulations promulgated by the Council on Environmental Quality (CEQ) on July 16, 2020, to streamline NEPA analyses. SC&A was able to reduce the total page count by over one-half, while retaining and enhancing comparisons of project emissions to emissions from similar state, regional, and national projects. Like all NEPA analyses developed by SC&A for BLM, the analysis was published by BLM as part of the NEPA Environmental Assessment for the proposed project.

November 2020 - SC&A Assesses Long-Term Public Health Effects of 1940s Nuclear Tests in the Republic of the Marshall Islands. The Nuclear Steering Committee of the Republic of the Marshall Islands asked SC&A to report on the radio-carcinogenic effects of radiation exposures from weapons testing and associated fallout from 1946 (the beginning of testing) to the present, and also to project the number of future cancers that might occur. Our report also discusses radiation effects other than cancer (stroke, heart disease, and neurological effects).

November 2020 - SC&A Develops Custom GHG Training Program. SC&A developed a custom air quality and greenhouse gas (GHG) training program for the Union Tank Car Company (UTC). The 2-hour training focused on a general introduction to air pollution and GHG requirements, sources of air pollution, air permits, and compliance and enforcement. Our lead environmental trainer, Andrew D. Shroads, QEP, presented the training program on November 18, 2020, to UTC corporate and site management, engineering, and environmental, health, and safety staff at dozens of UTC sites across the United States. The training was very well received, and SC&A is currently negotiating a follow-on training program on site-specific air permit requirements including monitoring, recordkeeping, and reporting.

September 2020 - SC&A Wins 5-year Multiple Award IDIQ Contract for Technical Assistance in Support of NRC Reactor Licensing. Under this NRC $17 million Enterprisewide contract, SC&A will provide a wide range of technical, engineering, and scientific assistance and expertise in support of the NRC’s work to license and oversee nuclear power and non-power reactors during all phases of the regulatory lifecycle. This includes reviewing applicant and licensee documents, preparing input to safety evaluation reports, and assisting with the revision of regulatory documents to support application reviews. SC&A is also on the winning team of ISL, another holder of the NRC Reactors Enterprisewide contract.

September 2020 - SC&A Wins Two Task Order Contracts under the Regulatory, Analytical, and Evaluation Support Services BPA for Radiation Protection Programs with EPA’s Office of Radiation and Indoor Air (ORIA). The first task order is to continue SC&A support for inspections and audits of DOE’s Waste Isolation Pilot (WIPP) Program under 40 CFR Part 194. The second task order is to support ORIA’s compliance oversight of the WIPP facility including waste certification and performance assessment to ensure DOE’s compliance with EPA’s radioactive waste disposal regulations of 40 CFR Part 191 and compliance criteria of 40 CFR Part 194.

August 2020 - SC&A Wins 5-year Multiple Award IDIQ Contract for Technical Assistance to NRC Rulemakings, Licensing and Regulatory Actions for Materials and Waste, and Environmental Reviews for Materials, Waste, and Reactor Programs. Under this Enterprisewide contract, SC&A will provide a wide range of technical, engineering, and scientific assistance and expertise in support of the NRC’s work to ensure the safety, security, and adequacy of commercial nuclear power plants, noncommercial nonpower production and utilization facilities, materials and waste facilities, and the use of source, byproduct, and special nuclear materials. This win puts SC&A on the team for two of the three awards the NRC has made for this contract. SC&A is also on the winning team of ICF, another holder of the NRC Rulemaking Enterprise contract.

May 2020 - SC&A Wins Continued Support to EPA Radiation Protection Programs. SC&A has been awarded a 5-year Regulatory, Analytical, and Evaluation Support Services BPA for Radiation Protection Programs with EPA’s Office of Radiation and Indoor Air (ORIA). SC&A will support the ORIA Radiation Protection Division mission to protect the public from radiation exposures and risks. Task orders under this contract will help ORIA (1) develop and implement regulations and guidance, (2) evaluate and characterize radiation sources, (3) develop guidance and site-specific analyses, (4) conduct waste certification and performance assessment of DOE’s Waste Isolation Pilot Plant (WIPP), and (5) evaluate innovative technologies.

May 2020 - SC&A Wins OASIS SB Pool 1 General Services Administration (GSA) Contract. SC&A was recently awarded a One Acquisition Solution for Integrated Services — Small Business (OASIS SB) contract, which is a family of Multiple Award, Indefinite Delivery, Indefinite Quantity (MA-IDIQ) task order contracts. The OASIS contract vehicle is a government-wide contract providing a single solution for complex requirements. Our award is in OASIS Pool 1. It is 100% small business under NAICs Subsector 541, Professional, Scientific, and Technical Services. Visit our OASIS contract page for full details.

April 2020 - SC&A Support to DC COVID-19 Response. SC&A is currently working with our prime, CNA, to assist DC Health and the region prepare and respond to the COVID-19 pandemic. Recent work we supported includes supporting the DC Health and Medical Branch Planning Section with their COVID-19 response efforts, including but not limited to: (1) drafting guidance documents for the residents of DC, (2) supporting medical surge planning, (3) supporting development of Incident Action Plan documents, (4) supporting the Incident Management Team communications and coordination, and (5) supporting additional planning missions as they arise.

March 2020 - SC&A to Support EPA National Water Program. SC&A is one of four contractors selected to support the EPA’s National Water Program for a wide variety of technical, program management, and operations support. Tasks will include data collection and analysis, preparation of technical materials, assistance with water quality models and decision support tools, facilitation and strategic planning, outreach and communication, and information management, among others.

March 2020 - SC&A Associate Publishes in Applied Geochemistry. SC&A Associate Janet Schramke and two EPA co-authors, Jay Santillan and Tom Peake, have published a technical paper, "Plutonium Oxidation States in the Waste Isolation Pilot Plant Repository," now available online or in the May 2020 print issue of Applied Geochemistry.

December 2019 - Reasonably Available Control Technology (RACT) for Permit Applications. SC&A was selected to prepare permit applications and regulatory analysis for the Union Tank Car Company facility in Sayre, PA. Since Pennsylvania is part of the Ozone Transport Region, the facility expansion must conform to Pennsylvania’s RACT requirements. As part of the permit application, SC&A is reviewing control technologies for onsite railroad tank car cleaning, abrasive blasting, and painting to help select appropriate RACT.

November 2019 - Radiation Exposures from Alumina Production Residues (APR). SC&A’s Stephen Marschke and John Mauro, with coauthor William Rish of ToxStrategies Inc., have published a technical paper on “Radiation exposures from the beneficial use of alumina production residues” in the Journal of the Air & Waste Management Association. The paper develops radiation exposure estimates over the life cycle of beneficial use in cement of an APR waste pile. Their findings demonstrate that beneficial use of APR waste as a cement ingredient can be accomplished safely, with potentially significant benefits to management of the large volume of APR being stored around the world.

October 2019 - Small Business Outreach Programs. SC&A has been contracted by the U.S. Environmental Protection Agency (EPA) to provide technical assistance, training, and other support to help small businesses comply with federal air quality regulations, particularly those for hazardous air pollutants.

October 2019 - Climate Change Analyses for BLM. SC&A has been contracted by the U.S. Bureau of Land Management (BLM) to perform climate change analyses for upcoming projects, including oil and gas development, mining, and other multiple uses for Federal lands. SC&A will be providing these services for the BLM Eastern States Office, which is responsible for all states that border or are east of the Mississippi River.

October 2019 - Final EA for Renewal of Source Material License Issued. Led by Dr. Abe Zeitoun, SC&A Senior Vice President, and Milton Gorden, Senior Engineer, SC&A subject-matter experts supported the U.S. Nuclear Regulatory Commission’s staff in the development of the Environmental Assessment for the Proposed Renewal of Source Material License SUB-526 Metropolis Works Uranium Conversion Facility, the only uranium conversion facility in the United States. SC&A supported the development of the draft EA issued for public comment, the evaluation and response to public comments, and the revision of the EA. For more information, please refer to the NRC’s Federal Register notice for the EA.

September 2019 - Investment Portfolio Carbon Impact Assessments. SC&A has won a follow-on 5-year contract from the Overseas Private Investment Corporation (OPIC) to screen projects receiving OPIC support via direct investment and guarantees, insurance, frameworks, or funds. SC&A prepares and verifies project-level greenhouse-gas emissions and provides assurance that carbon accounting practices are consistent with internationally recognized methodologies.

September 2019 - SC&A Evaluates Landfill Needs Assessment. SC&A was awarded a task to validate data and provide a professional opinion on the needs assessment submitted to the Utah Division of Waste Management and Radiation Control for a proposed construction and demolition debris landfill.

September 2019 - SC&A to Support the EPA Disaster Debris Recovery Tool. SC&A won a task order under our contract to provide RCRA support to EPA that involves collecting and updating data for EPA’s Disaster Debris Recovery Tool, advising the Agency on ways to automate the data collection process, and researching opportunities to promote the tool to EPA stakeholders.

August 2019 - SC&A to Sponsor and Present at AWMA Freights & Environment Specialty Conference. Maureen Mullen of SC&A will be presenting at the Air and Waste Management Association’s (AWMA’s) inaugural specialty conference Freight & Environment: Ports of Entry in Newark, New Jersey on October 24. Maureen will present an analysis of port control strategies for vessels, based on SC&A’s work for the U.S. Coast Guard to develop a prototype vessel emission inventory model capable of evaluating emission control strategies for vessels. SC&A is also a Gold Sponsor of this conference. For more information, visit https://www.awma.org/ports.

image of logo for a CDP Accredited Provider 2018August 2019 - SC&A Aids Airport Carbon Accreditation. The San Diego International Airport has been certified by the Airports Carbon Accreditation program as carbon neutral. SC&A helped the airport achieve this milestone by conducting a third-party verification of its carbon management program and stakeholder engagement plan.

June 2019 - Award of Environmental Impact Assessment (EIS) Subcontract. SC&A, as a subcontractor to Tetra Tech, has been awarded a one-year contract, with a second-year option, to support preparing an EIS to aid the National Nuclear Security Administration (NNSA) in making a decision on whether or not to develop and operate capabilities to produce plutonium pits at the Savannah River Site at Aiken, South Carolina in support of NNSA’s Stockpile Stewardship Program.

June 2019 - Air Toxics Presentation at AWMA. SC&A Senior Vice President Phil Norwood presented at the Air and Waste Management Association (AWMA) Annual Conference in Quebec City June 27. Phil’s presentation on “Communities at Risk from Air Toxics - Deeper Analysis of NATA Results and Tool for a Path Forward” examines various locations in the U.S. that have been identified as having potentially high risks due to the exposure of residents to toxic air pollution. It lays out a process and ready-made EPA tool that can efficiently help communities study these risks. Read the paper here.

May 2019 - SC&A to Continue RadNet Support. The U.S. Environmental Protection Agency has exercised Option Year 1 with SC&A to continue its support to EPA’s National Air and Radiation Environmental Laboratory RadNet Instrumentation Contract. SC&A staff provide field and bench engineering designs and services to maintain EPA’s 100+ RadNet monitoring stations nationwide.

April 2019 - Society for American Archaeology (SAA) 2019 Presidential Recognition Award. SC&A Associate Jerry D. Spangler, our archaeologist and cultural resources expert, received on April 12, 2019, the SAA Presidential Recognition Award at the Society’s annual meeting in Albuquerque. The award was for his work to protect the archaeological resources of Grand Staircase-Escalante National Monument in southern Utah. Presenting the award is past SAA President Susan Chandler.

April 2019 - SC&A Vice President Interviewed in Environmental Business Journal. Phil Norwood, Senior Vice President and leader of the Air and Climate Change practice area at SC&A, was interviewed by the Environmental Business Journal about the business climate for air and climate change consulting for the EPA and other government clients. This interview is in the Winter 2019 edition of the Journal.

April 2019 - SC&A Cybersecurity Specialist Quoted. Tom Donahue, Senior Cybersecurity Specialist at SC&A, was recently quoted in the Washington Post discussing the risks of potential espionage and cyber attacks against the United States related to Chinese firm Huawei’s major share of the 5G global network.

April 2019 - Award of NIOSH Contract. SC&A has been awarded a five-year contract for “Technical Support for the Advisory Board on Radiation and Worker’s Health Review of NIOSH Dose Reconstruction Program.” The work involves the evaluation of worker health at DOE facilities across the country; SC&A has supported this work under multiple contracts since 2003. The total value of these contracts is over $60 million.

March 2019 - Annual Greenhouse Gas Emissions Reports. SC&A has won a project to prepare annual greenhouse gas (GHG) emissions reports for the Energy Cooperative, a natural gas, electricity, and propane supplier with a service area of 15 counties in Central Ohio. The work included assessing carbon dioxide, methane, and nitrous oxide emissions from natural gas distribution, transmission, and storage activities.

February 2019 - Air Toxics Training for State and Local Agencies. SC&A has won a project to conduct an air toxics training course for State and local agency members of the Western State Air Resources (WESTAR) Council. SC&A’s Andrew D. Shroads, QEP, will be the instructor for this course, to be held September 30 and October 1, 2019, in Denver, CO. Please check back soon for more details.

January 2019 - Environment, Health & Safety Reviews. SC&A was awarded a new contract from CHWMEG Inc. to perform 15 environment, health and safety reviews for 2019. SC&A has supported this program since 2003 and performed 278 reviews in 25 states and 8 countries. The facilities reviewed have ranged from electronics recycling facilities to radioactive waste management facilities.

January 2019 - Tier II Emergency and Hazardous Chemical Storage Reporting. SC&A was awarded a contract from the Energy Cooperative, a natural gas, electricity, and propane supplier with a service area of 15 counties in Central Ohio. The work included a review of all Energy Cooperative sites, including propane storage terminals, natural gas storage wells, natural gas transmission compression stations, and oil and gas wells, to determine the onsite storage of hazardous and flammable materials. SC&A developed site plans, maps, and chemical inventories and submitted Emergency and Hazardous Chemical Inventories (Tier II reports) to the Ohio State Emergency Response Commission, county emergency management agencies, and local fire departments. These agencies use the Tier II reports for emergency response planning within their communities.

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