What's New

As the calendar turns, many organizations are shifting focus from day-to-day operations to a critical part of environmental compliance: annual and recurring regulatory reporting. Several key federal and state environmental reports tied to calendar year 2025 activities are due in 2026, and early preparation can help avoid last-minute stress, reporting errors, and potential enforcement issues.

Below is a summary of some of the key requirements and what companies need to know:

EPCRA Tier II Reporting – Due March 1, 2026 – Under Section 312 of the Emergency Planning and Community Right-to-Know Act (EPCRA), facilities may be required to submit Tier II chemical inventory reports if they stored hazardous chemicals on-site during 2025. In general, Tier II reporting applies to facilities that stored 10,000 pounds or more of a hazardous chemical at any one time during the year, or Extremely Hazardous Substances (EHSs) at or above their lower regulatory thresholds.

RCRA Biennial Hazardous Waste Reporting – Due March 1, 2026 – Facilities classified as Large Quantity Generators (LQGs) must submit a biennial hazardous waste report covering calendar year 2025. This report summarizes hazardous waste generation, management, and disposal activities.

Annual Air Updates and Emissions Statements – Due March 1, April 15, or June 30, 2026 – Air compliance reporting timelines vary depending on permit type and jurisdiction. Many facilities are required to submit annual updates, emissions statements, or operational summaries. Permit conditions should be reviewed carefully to confirm applicable deadlines.

Title V Semi-Annual Reports – Typically Due End of January and End of July – Facilities operating under Title V air permits are generally required to submit semi-annual monitoring or deviation reports summarizing compliance status.

Title V Annual Compliance Certification – Due March 1, 2026 – Title V sources must also submit an annual compliance certification certifying compliance with all applicable permit conditions for calendar year 2025.

Toxics Release Inventory (TRI) Reporting – Due July 1, 2026 – TRI reporting under Section 313 of EPCRA applies to facilities in covered industry sectors that exceed employee thresholds and manufacture, process, or otherwise use listed TRI chemicals above regulatory thresholds during 2025.

Plan Ahead to Stay Compliant

Environmental reporting requirements continue to grow more complex. Reviewing inventories, waste records, air emissions data, and permit conditions early can help ensure accurate and timely submittals.

ONE Environmental Group is here to help, with regional teams of experienced consultants who can:

• Assess your reporting requirements to ensure accuracy.
• Help you gather and organize the necessary data.
• Complete and submit reports on your behalf to meet deadlines.

Contact us today for assistance!

GIS Analyst

Jenna Mayfield joined ONE Environmental Group in August 2025, bringing with her a rare blend of technical skill, creative perspective and genuine enthusiasm for geospatial problem-solving. Today, she serves as a GIS Analyst based out of ONE’s Charlotte office, applying her deep knowledge of mapping, data visualization and environmental science to support clients and teams across the company.

Raised in Mooresville, North Carolina — a place she still calls home — Jenna’s path into environmental GIS work began at the University of North Carolina at Chapel Hill. There, she earned dual bachelor’s degrees in Environmental Science and Information Science & Technology, along with a minor in Geographic Information Systems. She built a strong foundation in tools like ArcGIS Pro, QGIS, Python and remote sensing workflows, complementing her hands-on field experience with drone mapping, LiDAR and machine learning applications.

Before joining ONE, Jenna gained experience through several research-driven, conservation-focused positions. She supported The Nature Conservancy by using drone and camera imagery to assess pollinator habitats at solar facilities. She contributed to coastal and flood resiliency research for the North Carolina Collaboratory — work that helped shape policy papers shared with state leaders. And in the Hoi Polloi Lab at UNC, she participated in plant research that combined laboratory precision with advanced image segmentation techniques.

At ONE, Jenna has found the ideal environment to blend her analytical skills with her creative instincts. She enjoys the freedom to design customized data visualizations, explore complex spatial questions and “put her own spin” on the maps and tools she creates. Her work in ArcGIS Pro, along with her development of automation tools and spatial workflows, helps internal teams make faster, clearer, more informed decisions.

Just as meaningful to her is the culture of collaboration she’s found at ONE. “I really enjoy working with the ONE team,” she says. “It’s a place where you’re trusted to innovate and supported every step of the way.”

Outside of work, Jenna enjoys hiking North Carolina’s trails, gaming, and diving into different creative crafts. Her strong technical background, coupled with her curiosity and collaborative spirit, makes her a valued member of the ONE team.

Environmental Consultant

Evan Smith-Rooks joined ONE Environmental Group in August 2025, stepping into a satellite role connected to the Atlanta office. Living in Cumming, Georgia — just an hour north of his birthplace of Atlanta — he brings regional familiarity and a strong academic foundation to his work across the Southeast.

Evan graduated from Oberlin College with a B.A. in Environmental Science, concentrating in Environmental Biology with a minor in Geoscience. A four-year varsity football player and campus leader, he earned the prestigious 2025 Joyce Gorn Memorial Prize for academic excellence and community engagement. His training spans soil and groundwater sampling, wetland assessments, GIS analysis, environmental compliance, and field monitoring.

Before joining ONE, Evan gained field experience with the South Carolina Department of Transportation, conducting wetland delineations, species surveys, groundwater sampling and GIS mapping to support DOT and NEPA-related projects. He also contributed to ecological restoration and spatial analysis efforts with the Western Land Conservancy and supported sustainability initiatives on campus.

At ONE, Evan values the variety and flexibility the firm offers. “At a larger firm, it’s easy to get pigeonholed,” he says. “Here, there’s a wide range of work — Phase I and II assessments, remediation, testing — plus the chance to travel and work outdoors. I get to see the world.”

Outside of work, Evan stays active in his community as an assistant football coach at South Forsyth High School and has been umpiring baseball for eight years, currently pursuing his certification through the Georgia High School Sports Association. An avid fisherman, he enjoys everything from fly fishing to offshore excursions. He’s also a member of the Georgia Brownfield Association, where he continues to grow his professional network.

At home, Evan enjoys life with his Schnoodle puppy, Charlie — and as a fun fact, he holds a forklift certification. Evan’s energy, curiosity and dedication to hands-on fieldwork make him a strong addition to ONE team.

Project Coordinator

Karen Sewell is a dedicated Project Coordinator at ONE Environmental Group whose warmth, work ethic, and three decades of administrative and accounting experience make her an invaluable member of the team. Karen joined ONE in July 2025, assigned to the Midlothian office and she also supports ONE leadership in the Tidewater region, offering a seamless extension of the team wherever she is needed.

Karen’s professional journey began at Avis Budget Group, where she embraced the company’s “We Try Harder” spirit. That mindset guided her through nearly 30 years with Avis Budget Group, where she advanced into roles involving revenue accounting, financial reconciliation, collections, customer relations, and team leadership. She later brought that expertise to Arrowhead Environmental Services and Superior Environmental Solutions, managing complex billing operations, ensuring payroll accuracy, coordinating collections, supporting compliance processes, and building strong relationships with customers and vendors.

At ONE, Karen supports project managers by preparing billing, coordinating project activities, conducting research, communicating with customers, and stepping in wherever help is needed. What she appreciates most about working at ONE is the sense of teamwork and shared purpose. “It’s one group, one team,” she says. “I really appreciate the commitment of the people here, and I respect the company’s involvement in the community.”

Service plays a central role in Karen’s life outside of work as well. She has volunteered with the Windsor Lions Club for more than a decade and currently serves as its Treasurer. She is active in the Women’s Club of Windsor and contributes to multiple volunteer efforts through her church. When she finds free time, she enjoys biking, kayaking, and vacationing in warm places. At home, Karen and her husband, Charles, have been married for 26 years, and their family includes six children and fifteen grandchildren. They share their home with two Yorkies, Boomer Kai and Libby Jean.

Senior Project Manager

When Senior Project Manager Brian Winkler, P.E., joined ONE Environmental Group in September 2025, he brought with him more than 20 years of experience in the environmental industry supporting engineering, project management and client development – along with a passion for family, community and problem solving. Based in Warrington, Pennsylvania, Brian is spearheading the firm’s efforts to establish a Philadelphia office and strengthen ONE’s presence across the Northeast.

A Penn State graduate and licensed Professional Engineer in multiple states, Brian’s career has been defined by technical versatility and leadership in complex environmental projects. Prior to joining ONE, he managed a wide range of industrial facility projects, actively partnering with clients to maintain compliance with air, waste and water regulations under federal, state and local programs. His work has included developing and implementing compliance strategies for manufacturing, energy and waste-to-energy operations, as well as conducting multi-media audits, managing permitting processes and overseeing environmental reporting and training programs.

Brian also has experience managing waste-to-energy facilities where he directed day-to-day compliance programs and coordinated with regulatory agencies to ensure continuous operational integrity. His hands-on approach and deep regulatory knowledge have made him a trusted advisor to industrial clients navigating complex permitting and compliance challenges across multiple jurisdictions.

Brian was referred to ONE from a satisfied long-term ONE client and drawn further to ONE after learning about the company’s collaborative culture and steady, values-driven growth.

Outside of work, Brian’s world revolves around his family. He and his wife are raising three children at their home in Warrington. They spend time involved in youth sports and activities, gatherings with family and friends, and local community events.  Together, they founded an Outreach Bag program through their church to support homeless and less fortunate children and adults. Once a month, the program organizes volunteers to assemble bags filled with food and toiletries for those in need.

When he’s not leading environmental projects or giving back to his community, Brian enjoys spending time at home with his family, playing basketball and getting out on the golf course when time allows. He’s also known for his curiosity and persistence, whether it’s tackling household projects, learning to solve a Rubik’s Cube or increasing his green thumb with a home garden – all fitting traits for someone who thrives on tackling complex challenges from every angle.

As ONE expands its reach in the Northeast, Brian Winkler is helping ensure the firm’s reputation for technical excellence and personal service continues to grow, one project, one partnership and one community at a time.

Environmental Consultant

Eli Pfadt didn’t set out to work in environmental consulting, but we’re glad the path led him to ONE Environmental Group.

Based in ONE’s Midlothian, Virginia, office and living in downtown Richmond, Eli joined the firm in June 2025 as an Environmental Consultant. He brings a background in safety and a fresh enthusiasm for environmental work that’s quickly made him a valuable member of the team.

Originally from Erie, Pennsylvania, Eli graduated from Slippery Rock University with a degree in safety. Before joining ONE, he worked at a firm serving as a general contractor for Dominion Energy. While he enjoyed his previous role, Eli was ready for a change, and when the opportunity at ONE arose, he jumped in. “The vibe here is special. I’d gotten to know some people at ONE already, and I really liked what I saw.”

At ONE, Eli helps clients stay in compliance with environmental regulations while contributing to projects that make a real-world impact. His certifications include HAZWOPER, as well as erosion and sediment control and stormwater licenses from the Virginia Department of Environmental Quality (DEQ). He also holds Resource Conservation and Recovery Act (RCRA) certification.

What stands out most to Eli about ONE? The culture. “I like how supportive everyone is,” he says. “People here are really friendly, always willing to help, and it’s just a good atmosphere.”

Outside of work, Eli enjoys exploring his relatively new home base of Richmond. A resident for only a few years, he’s still uncovering all the city has to offer. He also enjoys kayaking, golfing, and spending time with his dog and cat.

Whether he’s in the field supporting clients or on the river taking in the views, Eli brings a calm and steady approach to everything he does, and ONE is glad to have him on the team.