RSB Environmental is the nation's leader in Phase 1 Environmental Site Assessments and Due Diligence services by volume. Phase One Environmental Site Assessments Alliance Technical Group is the nation's leader in Phase 1 Environmental Site Assessments and Due Diligence services by volume. Fast and Affordable 10 day bank approved Phase 1 (ESA) reports by a licensed engineer with project offices nationwide. Alliance Technical Group provides fast and affordable Phase I Environmental Site Assessments that adhere to industry standards like ASTM E1527-21. Quality Phase One Environmental Site Assessments completed by environmental professionals with a minimum 10-year's experience. Comprehensive Environmental Services – All Under One Roof We provide deep technical expertise and full-scope capabilities to help you solve complex environmental challenges. We provide deep technical expertise and full-scope capabilities to help you solve complex environmental challenges. 1-877-759-1924 Request a Free Quote First name* Last name* Phone* Email* Company name* Address* Type of Service* Reason For Assessment* Submit Laboratory Services NELAP-accredited testing for air, water, soil, PFAS, and waste—fast, accurate, and defensible. On-Site Testing Monitoring Reliable source testing, emissions data, regulatory reporting, and more. Environmental Compliance Site assessments, remediation strategies, compliance audits, and permitting support across industries. We are a new kind of environmental services company—powered by innovation, focused on service, and committed to your success. Our Reach With over 60 testing and laboratory locations across the United States and Canada, we are where you need us.

Advanced fugitive emissions testing & LDAR management. Optical gas imaging, Method 21, SkyBridge software & mobile monitoring solutions from Alliance. Services / On-Site Testing & Monitoring / Fugitive Emissions Data Acquisition Systems Built for compliance. Tailored for your team. Alliance’s Data Acquisition Systems (DAS) give facilities across the U.S. the tools to collect, validate, and report emissions data continuously — and to stay ahead of federal, state, and local regulatory requirements without the administrative burden. Reduce time spent managing data. Centralize data collection, validation, review, and reporting in a single system. Automated calculations and data handling reduce manual effort, minimize errors, and keep your records consistent and ready for audits. Built for your facility. Backed by decades of expertise. Designed from decades of air emissions compliance experience, each system is configured to your equipment, processes, and reporting workflows, not a one-size-fits-all setup. Continuous updates keep your system aligned with evolving regulatory requirements. 24/7/365 Dedicated Expert Support Get direct access to a U.S.-based team of 15+ DAS specialists, available 24/7/365 to support your system, troubleshoot issues, and help maintain reliable compliance operations. Our DAS Products StackVision™ The most widely used DAS in the U.S., trusted by more than 3,100 air emission sources. StackVision is user-configurable — not a black-box programmed solution — so your team can manage configurations, calculations, and alarms without writing a single line of code. Prism A scalable DAS solution purpose-built for facilities that need flexibility without complexity. Prism grows with your operation and integrates with the same 8864 Data Controller hardware platform. SkyBridge Suite Details Ambient Air Monitoring Teaming with Alliance’s ambient air monitoring services provides a comprehensive, reliable solution for managing and improving your facility’s air quality. Alliance offers a wide range of ambient air services including: Air Quality Monitoring | Meteorological Networks | Odor Assessment Services | Noise Consulting & Acoustic Monitoring | Vapor Intrusion Programs Dedicated LDAR Compliance and Auditing Services Our team of environmental compliance consultants provide full-service LDAR compliance support spanning audits, QA/QC program oversight and reporting to ensure regulatory adherence. REQUEST INFORMATION “Combining our services is pivotal in supporting our clients' every need. The Alliance way is a true differentiator, providing solutions-based onsite testing and monitoring with top SMEs to handle immediate environmental challenges. Alliance is positioned as your partner of choice for highest-level delivery.” Martin Gibson Executive Vice President, Emissions Monitoring “Meticulous details, first-of-their-kind tools, and quality oversight of every LDAR program sets Alliance apart—always raising the bar for resource management, availability, and dedicated internal support.” Paul Phillips Senior Vice President, Emissions Monitoring Back to All Services

SkyBridge cloud-based software for LDAR, OGI & emissions monitoring. Real-time data management, mobile access & automated reporting solutions. Services / On-Site Testing / Fugitive Emissions / SkyBridge Software SkyBridge Software Suite Transform with SaaS. SkyBridge cloud-based Software as a Service (SaaS) platform is specially developed for seamless, scalable, secure, and compliant real-time data management of LDAR, OGI, Cooling Towers, Fenceline Monitoring, and Air Permitting. Solutions SkyBridge Share accurate LDAR field data as it’s being captured and already updating your records in real-time. Safer and simpler than on-premises systems, SkyBridge ensures gated access with no firewall breaches, saves labor and IT costs, cuts errors, and is user-friendly. In addition to supporting traditional Method 21 monitoring, SkyBridge has built-in support for OGI camera surveys as well allowing for mixed-mode monitoring whether you are doing AWP or just supplemental monitoring with the camera. Cloud-Based Mobility | Real-Time Field Data | Accurate & Secure | Comprehensive Reporting | Seamless Updates SkyBridge OGI For compliance database management, SkyBridge OGI tackles midstream and upstream optical gas imaging challenges for the oil and gas industry, plus fugitive emissions programs in other industries by eliminating manual tasks, fragmented data, and weak security. Reduced Risks | Auto-generated CEDRI reports | Instant image/video uploads | Secure real-time data synchronization Get a Custom Demo Request your own simulated SkyBridge OGI demo when you contact us for more information. SkyBridge Fenceline Monitoring Experience the ease and efficiency of managing your program with SkyBridge Fenceline Monitoring software. With built-in regulatory requirements and business rules, instant data transfer and in-field documentation—make smart, fast data-driven decisions. Eliminate mundane manual tasks and wasted hours of work, and reduce risks from human errors. SkyBridge Cooling Towers Manage your cooling system with our secure, user-friendly solution. Eliminate data loss, boost efficiency, and organize inventory with a web app. For better decision-making, streamline reporting with detailed inspections, emissions reports, and inventory lists. Easily check your field data anytime, anywhere—whether you’re on a PC, laptop, tablet, or phone. All you need is a web browser. Ready to transform with SkyBridge? Your people will thank you for the user-friendly interfaces and streamlined efficiency. REQUEST INFORMATION See How SkyBridge OGI Works "Seamlessly designed for environmental teams, SkyBridge prioritizes compliance, efficiency, and data quality. Our intuitive suite of solutions enables you to confidently manage complex regulations, minimize time-consuming processes, and maintain data integrity—all in one place and in real-time." James Naron Vice President, Technology Back to All Services

Leading stack testing provider in the U.S. Compliance demonstration, RATA testing, specialty testing & FTIR spectroscopy. Accurate emissions testing. Services / On-Site Testing / Source Testing / Stack Testing Stack Testing Expect the best from the largest stack testing provider in the U.S. With more than 25 years of experience, a national footprint of 50+ testing and laboratory locations, and QSTI-certified professionals, Alliance delivers reliable emissions testing programs that keep facilities compliant and operating with confidence. REQUEST INFORMATION 450+ Dedicated Stack Testing Experts Alliance’s stack testing team is part of a 2,200+ person environmental services organization , providing the national scale needed to support complex emissions testing programs across North America. 275 Field Operations Professionals Our field teams support stack testing projects across multiple industries, delivering accurate emissions measurements and reliable testing execution at facilities nationwide. 85+ QSTI-Certified Project Managers Alliance’s stack testing programs are led by experienced project managers and supported by a 40-person leadership team with more than 400 years of combined industry experience. 450+ Dedicated Stack Testing Experts Alliance’s stack testing team is part of a 2,200+ person environmental services organization, providing the national scale needed to support complex emissions testing programs across North America. 450+ Dedicated Stack Testing Experts Alliance’s stack testing team is part of a 2,200+ person environmental services organization, providing the national scale needed to support complex emissions testing programs across North America. 450+ Dedicated Stack Testing Experts Alliance’s stack testing team is part of a 2,200+ person environmental services organization, providing the national scale needed to support complex emissions testing programs across North America. Stack Testing Services Compliance Demonstration | Engineering/Investigative Test Programs | On-Site FTIR Spectroscopy | Specialty Testing | Low Level PM Sampling | Performance Specification Testing (RATA) | International Stack Testing Compliance Demonstration Alliance performs emissions testing to demonstrate compliance with federal, state, and permit-specific requirements, including common pollutants: PM (filterable PM, condensable PM, PM-10, PM-2.5, OTM-37) Metals, including Hg Acid gases Combustion gases Volatile and Semi-Volatile Organics (total and speciated) Dioxins and Furans Formaldehyde Specialty Testing (PFAS, EtO, Combustors) Testing is performed on a wide range of emissions control systems, including: Baghouses, Cyclones, and ESPs FGD and dry scrubbers SCR and NSCR Oxidizers (thermal, regenerative, and catalytic) Engineering & Investigative Test Programs When should a facility consider an engineering or investigative stack testing program? Facilities may consider investigative testing when preparing for a high-priority compliance test or when process-related challenges require accurate emissions data for troubleshooting or performance evaluation. Alliance’s experienced testing professionals can design customized measurement programs that help facilities evaluate control device performance, identify potential compliance risks, and better understand process conditions before conducting formal compliance demonstrations. Our fully integrated consultants are also available to provide subject matter expertise consultations. Performance Specification Testing (RATA) Alliance provides Part 60, Part 63, and Part 75 continuous emissions monitoring system (CEMS) evaluations and relative accuracy test audits (RATA) for all manner of CEMS configurations within all applicable industries. From routine gas and flow RATAs to highly complex GC, PM and Mercury RATAs, we have you covered. Specialty Stack Testing Capabilities One of Alliance’s key stack testing differentiators is our ability to plan and execute testing programs for the most complex emissions targets and scenarios. Our capabilities include: Dilution Based Sampling for Particulate Matter (OTM-37) PFAS Sampling (OTM-45 & OTM-50) Diluted CEMS Sampling for High Moisture or Highly Concentrated Sampling Locations Direct Interface Gas Chromatography for Speciated VOC and Sulfur Compounds OOOOb Combustor Compliance Testing (OTM-52) Hazardous Waste Combustion CPT Programs Low Level Particulate Matter Sampling How does Alliance measure extremely low PM levels? As compliance thresholds for PM, PM-10, and PM-2.5 continue to decrease, you need a highly experienced testing partner to create a testing plan to mitigate the challenges associated with accurately quantifying very low levels of particulate matter. Alliance ensures accuracy with advanced equipment, a fully developed internal laboratory network, and rigorous quality control procedures. On-Site FTIR Spectroscopy Alliance provides on-site Fourier Transform Infrared (FTIR) spectroscopy for complex emissions measurement applications, including low-level hazardous air pollutants and multi-compound gas streams. Our FTIR specialists support compliance demonstrations for pollutants such as formaldehyde, ethylene oxide, and hydrogen chloride. International Stack Testing International stack testing is full of challenges — but they can be solved with the right approach. Alliance has developed a system that keeps your projects on track, from ensuring accuracy under pressure to moving equipment securely across borders to planning every detail in advance. Learn more about how we do it: International Stack Testing Schedule your Stack Test View Accreditations VIEW OUR ACCREDITATIONS “People like what they do at Alliance. I think they understand it's a very important role. That pride tells our clients they’ve made the right choice.” Snapper Armstrong Vice President, Stack Testing Learn more about Source Testing. Back to All Services

Continuous Emissions Monitoring Systems (CEMS) installation, maintenance & compliance services. Part 60, 63 & 75 evaluations from Alliance experts. Services / On-Site Testing / Source Testing / CEMS CEMS Reduce your downtime risks with continuous monitoring. CEMS (Continuous Emissions Monitoring System) services are tailored to your compliance needs, and you can count on our extensive spare parts stock for fast service on your specific brand of equipment. Our CEMS areas of expertise cover a broad range of equipment types and industries. Alliance provides a comprehensive solution for emissions management, ensuring regulatory compliance, accurate monitoring, and timely maintenance. CEMS Service Offerings: Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training | Equipment Upgrades | Maintenance | QA/QC Audits | RATA Support Round-the-Clock Support: 24/7/365 support is always within reach. Fully Stocked Parts Inventory: The OEM brand name parts you need are on hand. Regulatory Assurance: Continuous monitoring and reporting to ensure compliance. Less Downtime: Reliable service and responsiveness optimize CEMS performance. Accurate Monitoring: Precise real-time emissions data for compliance and operations. Predictive Maintenance: Scheduled maintenance based on data trends to predict and prevent system failures. Cost Control: Regular maintenance controls repair costs and operational downtime. Knowledge Transfer: Expert training for environmental personnel, plant operators and technicians enhances system understanding and operation. Dedicated Temp CEMS Stay compliant, even during emergencies, with speedy service from our dedicated team of Temp CEMS experts and innovative mobile equipment. Minimize production downtime and maximize data collection with a customized Temp CEMS system, and expert technical and regulatory guidance. Assess the root cause of your existing system failure and design improved permanent systems with our CEMS specialists. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental and operational success. REQUEST INFORMATION “Our CEMS support hotline, deep bench of field service engineers, and large inventory of parts allows us to quickly respond to emergencies and solve issues efficiently.” Jason Miller Vice President, CEMS Read more about CEMS and Temporary CEMS services: Back to All Services

Founded in 2000, Alliance Technical Group has grown from a small Alabama stack testing company to North America's leading environmental services provider with 2,200 employees. Learn more about Alliance Technical Group. Creating new possibilities and outcomes for our clients. Since 2000, we have been solving the problems of environmental management and compliance for some of the foremost companies and brands in North America. From on-site testing and monitoring, to laboratory testing and regulatory strategy, we are pushing out the limits of what is possible. We help our clients achieve their business objectives while also supporting their sustainability goals. OUR SERVICES 2200+ Dedicated Employees 60+ Locations in the US and Canada 110+ Mobile Laboratories Our Journey Founded in 2000 in Alabama as a small stack testing company, Alliance has since expanded into a full-service environmental compliance provider and a recognized leader in the North American market. A lot has changed for us since then, but one thing never will—we still put our clients first. EMPLOYEES 2000–2012 BUILDING THE BUSINESS 2012–2016 GROWTH THROUGH INVESTMENT 2016–2021 RAPID GROWTH & SERVICE LINE EXPANSION 2021–TODAY SCALING A NATIONAL/GLOBAL PLATFORM 2000 2 2005 10 2010 20 2015 50 2018 125 2020 675 2021 820 2022 945 2023 1,430 2024 1,720 2025 2,205 Stack Testing Lab Testing LDAR Ambient Air Consulting CEMS Software Acquisitions Since 2017, we have worked to increase our reach and improve our services through investments in our people, technology, and with acquisitions of these core businesses. Expand to see acquired companies 2025-2026 Element One Labs Mid Continent Testing Labs Earth Analytical Sciences Global Analyzer Systems ESC Spectrum Environmental 360 Slipstream Environmental Services Protocol2 Air Sciences Inc. Grace Consulting, Inc. Emissions Testing Services 2023-2024 DeNovo Global Technologies Ranger Analytics (Merger) GOLD, LLC CEMServices Rogers & Callcott Advanced Industrial Resources CEMSI Integrity Air Monitoring RSB Environmental Ortech Consulting Chemtech Consulting Group CEC Stack Test Group Summit Env. Tech Orange Coast Analytical Fremont Analytical Chester LabNet 2021-2022 GBMc & Associates EcoTest GuideWare CK Environmental InspectionLogic Pace Environmental CEM Solutions Interpoll Ace Consultants AAS Horizon Air Measurement Services Air Quality Services O’Brien & Gere EMSI Aeros Environmental 2017-2020 Almega Environmental and Technical Blue Mountain Summit Inspection Services METCO Environmental Air Pollution Testing Golden Specialty Our Commitment to Sustainability Our commitment goes beyond compliance—we create practical, scalable solutions that reflect our responsibility to protect our world. From reducing emissions and waste to supporting our people and communities, we’re focused on delivering meaningful progress today while building a more sustainable tomorrow. GET INVOLVED We are a new kind of environmental services company—powered by innovation, focused on service, and committed to your success. Our Reach With over 60 testing and laboratory locations across the United States and Canada, we are where you need us. Leadership Our team stands behind everything we do and commits to helping you succeed. From our frontline engineers and technical experts to our senior leaders, we are here for you. FROM LEFT: Chris LeMay, Jim Herr, Kim Van Soelen, Premal Vora Chris LeMay Chief Executive Officer Kim Van Soelen Chief Commercial Officer Jim Herr Chief Administrative Officer Premal Vora Chief Strategy Officer

Alliance delivers end-to-end environmental services including consulting, compliance, testing, monitoring & laboratory analysis. Get expert guidance today. Delivering every environmental compliance service and solution your company needs. Let's get started. Discover our integrated line of services designed to meet all the environmental compliance needs and challenges your company faces. How can we make your compliance journey better? ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Minimize risk and maximize results with the clarity, insight, and deep domain knowledge needed to make informed decisions. Alliance consultants and compliance professionals are committed, responsive experts at uncovering innovative solutions to your challenges. Environmental Consulting Air, Water, and Natural Resources Compliance Services Audits, Reporting, and Health/Safety Assessment & Remediation Due Diligence, Engineering, and Remediation On-site Testing & Monitoring Testing and monitoring tailored to your needs. Your testing and monitoring results are critical. Our dedicated teams, advanced methods, and full-service collaboration ensures your success. We perform with precision, causing minimal operational downtime, if any. Source Testing Stack Testing, CEMS, Engine Testing, and RNG Fugitive Emissions LDAR, Ambient Air, OGI, and SkyBridge Software Laboratory Testing & Analysis A national lab network that puts the focus on you. Receive fast results and client focus of a local lab, with the capabilities and reach of an advanced national lab network. If your current lab provider doesn’t meet all your testing needs and timelines, or fails to offer actionable and effective results, turn to Alliance labs. Environmental Lab Services Water, Waste, and PFAS Oil & Gas Lab Services Upstream, Midstream, and Downstream

Alliance delivers environmental compliance services, on-site testing, and laboratory analysis for air, water, soil, and waste. Serving oil & gas, power gen, data centers, and more. Get started today. We are different. While others expect you to adapt to them, we adapt our approach and service delivery to you. We are built from the ground up with a single focus—to provide our clients with compelling responses to their environmental and compliance challenges. We take an innovative, technology-first approach to helping you solve your business problems while minimizing your impact on the environment. Commitment to getting it right. When “good enough” just isn’t enough, turn to us. We build accuracy, precision, and quality into everything we do. Fast and adaptive approach. We design our project teams around your precise goals, quickly deploying the right experts and equipment to meet your needs. Dedicated and experienced experts. Our engineers, scientists, and compliance professionals are creative problem solvers with a total focus on your goals. Technology-powered insight. We help you unify and integrate your initiatives by connecting many sites and data streams into a single easy-to-manage, technology-enabled portfolio. Markets we serve. We support leading companies and brands across a wide range of markets. We understand the special challenges of each sector and have the experience, approach, and capabilities to make a difference. Building & Construction Chemical & Processing Data Centers Energy & Power Environmental & Waste Management Food & Consumer Goods Government & Institutions Manufacturing & Production Oil & Gas Pulp & Paper Renewable Natural Gas (RNG) Semiconductors MARKETS & INDUSTRIES We are problem solvers. Get solutions for your most important and complex compliance challenges. From on-site assessments and monitoring to laboratory analyses for air, water, soil, and waste—Alliance can help you do it better. Environmental Compliance Build your winning regulatory strategy with help from our consultants and compliance experts—who bring the knowledge, insight, and proven industry experience to ensure your success. On-site Testing & Monitoring Expect reliable, on-time results without slowing down operations. For all your testing needs, we have the experienced teams and industry-leading technology to take it on. Laboratory Testing & Analysis Access a world-class lab network that combines broad reach with unmatched responsiveness. From sample collection to analysis, our technicians deliver precision and insight. OUR SERVICES Environmental compliance shouldn’t be an endless costly challenge. We help clients take back control. It starts with a fresh approach. Alliance is a new kind of environmental services company—powered by innovation, focused on service, and committed to client success. ABOUT US

Contact Alliance Technical Group for environmental testing, monitoring & lab services. 50+ locations across US & Canada. Call 256-351-0121 or email today. Reach out to us for your testing, monitoring, and lab needs. 256-351-0121 Experience a better way with Alliance. Request more information below or use the locations map to contact one of our offices directly. Our Reach With over 60 testing and laboratory locations across the United States and Canada, we are where you need us. Contact us

Comprehensive environmental compliance subscriptions for industrial facilities—covering SWPPP, SPCC, TRI, Tier II, air emissions, and more. Services / Environmental Compliance / Caas360 CaaS360: Tiered Environmental Compliance as a Service Navigating compliance with confidence. A full, subscription-based solution for environmental compliance at industrial, manufacturing or commercial facilities that have multi-media compliance needs. This bundled CaaS360 service offers year-round management, reporting, documentation, and oversight for the most common federal and state regulatory programs such as: SWPPP (Stormwater Pollution Prevention Plan) Inspections SPCC (Spill Prevention, Control & Countermeasure) Inspections Annual Toxic Release Inventory (TRI) Reporting – EPCRA Section 313 Annual Tier II Reporting – EPCRA Section 312 Monthly Air Emissions Monthly DMR Reporting Monthly Waste Management Deliverables for the Regulatory Programs SWPPP - Stormwater Pollution Prevention Plan Full development or full update of the SWPPP (site map, BMPs, inspection logs, training) Inspections every three or four months (depending on the state) Sampling and reporting of storm events Reports on corrective actions A full inspection and review of SWPPP compliance every year Training for employees, documentation of BMPs,, and signs for guidance SPCC - Spill Prevention, Control, & Countermeasure Preparing or updating a spill plan Documenting tank/secondary containment Monthly inspections Annual SPCC training Coordinating integrity testing (if needed) Keeping records, logs, and event documentation as required Certification as a PE (if necessary) Toxic Release Inventory (TRI) Reporting - EPRCA Section 313 Evaluation of the annual threshold Putting together a list of chemicals Modeling the balance of materials for air, water, and waste releases Filling out and sending in Form R or Form A through CDX Tier II Reporting - Hazardous Chemical Inventory - EPRCA Section 312 Reviewing SDS and categorizing chemicals Calculating annual inventories and analyzing thresholds Submission to the local fire department and LEPC Mapping the facility, updating storage, and doing an annual review Air Emissions Monthly site inspections Emission inventory reporting Air permit recordkeeping definition & implementation Establish recordkeeping system Conduct EPA Method 9 or 22 Observations by Certified Personnel Monthly Subscription Prices Our subscription pricing adapts to your facility’s size, complexity, and the number of compliance programs we manage - giving you full coverage without surprises. Benefits of Program Predictable, Transparent Pricing - Know your costs upfront and receive a consistent monthly invoice, with no surprises. End-to-End Compliance Solutions with more uptime for operations. Mitigate Regulatory Risk - Stay ahead of deadlines and avoid compliance gaps caused by emergencies or staff changes. Streamline Inspections and Records: Effortlessly manage audits and maintain organized, inspection-ready documentation. Simplify Compliance with a Single Partner - One team managing air, water, stormwater, and waste reporting makes environmental management seamless. REQUEST INFORMATION Stay up on Compliance with Alliance. Back to All Services

Launching IP CEMS: A New Era in Part 75 Compliance The U.S. EPA Greenlights ESC Spectrum's (An Alliance Technical Group Company) New Integrated Path CEMS (IP CEMS) Technology for Air Emissions Compliance We have successfully demonstrated Integrated Path CEMS (also called optical in-situ monitoring) for air emissions compliance monitoring. The EPA agrees that the ESC Spectrum IP CEMS, as designed, meets the requirements of 40 CFR Part 75 and can now be provided as an option for our customers. Learn more in our press release below. Learn More "It’s an exciting time to be in the emissions compliance industry. We are proud to be at the forefront of innovative new technology to potentially reduce CEM system costs while improving measurement accuracy." Jeff Rabensteine Executive Vice President The Benefits of IP CEMS Technology More representative measurements can be made by using integrated path technology, eliminating sample transport and potential measurement biases, and providing a faster response time. Cost savings due to reduced calibration gas consumption and labor costs, less power usage, fewer emergency repairs, and spare parts for maintenance. Contact Us Below to Learn More! Want to know if IP CEMS is the right fit for you? Let’s chat! Our experts are happy to discuss your options and find the best solution for your needs. 256.351.0121 info@alliancetg.com 255 Grant St. SE Ste 600 Decatur, AL 35601 Copyright 2025 © Alliance Technical Group ABOUT SERVICES MARKETS NEWS CAREERS CONTACT PRIVACY POLICY Stay connected with Alliance.

Meet all your environmental lab testing and analysis needs seamlessly with our full-service laboratory with 50+ years of expertise in Greenville & Columbia, SC. Services / Lab Testing & Analysis / Environmental Labs / Greenville & Columbia Environmental Lab Greenville & Columbia Environmental Lab REQUEST INFORMATION About Alliance Technical Group - Greenville is a full-service environmental testing laboratory offering comprehensive analytical services for organic, inorganic, and general chemistry analyses across soil, water, and waste metrices. Founded in 1969, our laboratory combines 50+ years of expertise with state-of-the-art instrumentation and automation to deliver accurate, timely results that meet the most stringent regulatory requirements. Our Greenville lab serves upstate South Carolina, western North Carolina, and northeastern Georgia with sampling and analytical services. Our Columbia office covers the Midlands and Lowcountry, supported by a daily courier between the two locations to ensure timely sample delivery. Greenville: 803-509-8999 Columbia: 864-232-1556 Core Capabilities Organic Analysis Volatile Organic Compounds (VOCs) - EPA 8260/624/524 Semi-Volatile Organic Compounds (SVOCs) - EPA 8270/625 Organochlorine Pesticides - EPA 8081/608 Polychlorinated Biophenyls (PCBs) - EPA 8082/608 Chlorinated Herbicides - EPA 8151 Haloacetic Acids - EPA 552 Inorganic Analysis TAL Metals (23 metals) - ICP-AES/ICP-MS RCRA-8 Metals - Priority Pollutant Metals Cation-Exchange Capacity Hexavalent Chromium - SM 3500/EPA 7196 Mercury - EPA 7470/7471/245.1 TCLP Extraction - EPA 1311 Microbiology Total coliforms/e. Coli Fecal coliforms in water and sludges Heterotrophic Plate Count Legionella General Chemistry Anions (Full Scan) - EPA 300.0 Total Organic Carbon (TOC) - SM 5310C/EPA 9060A Biological/Chemical Oxygen Demand (BOD/COD) Total Suspended/Dissolved Solids (TSS/TDS/VSS) Nutrients (Ammonia, TKN, Phosphorus, Nitrate/Nitrite) Cyanide, Sulfide, Phenolics Surfactants (MBAS/CTAS) Oil & Grease (HEM) - EPA 1664 pH, Alkalinity, Hardness, Conductivity, Turbidity Network Lab Services Specialized analyses including PFAS, dioxin, and radiological testing available through our Akron facility. Certifications & Accreditations View Accreditations & Certifications State Certifications South Carolina (23105, 40572) Georgia (880) North Carolina (45710) NELAC Utah (SC00004) Accreditations NELAC SC DES NC DEQ, DHHS GA DNR Sample Information Sample Receiving Hours Greenville: Monday-Friday, 7:30 AM - 5:30 PM Columbia: Monday-Friday, 8:00 AM - 5:00 PM Turnaround Times Standard: 10 business days from receipt Expedited options available: Next Day (micro only) 2 Day 5 Day *Expedited TAT should be coordinated in advance Sample Pickup & Delivery Courier service for sample pickup & supply delivery Service radius: typically, 150-mile radius from lab Courier fees may apply - contact lab for details Containers & Supplies Pre-labeled sampling containers provided Chain-of-custody forms and coolers available Encore samplers and methanol kits upon request Contact lab for specific container requirements, holding times, and preservatives Reporting & Data Deliverables Hardcopy Formats Standard Format (Results Only) EPA Level I-II Data Management Web portal access for real-time project status 5-year data archival and retrieval services Electronic Data Deliverables (EDD) Excel/ASCII formats RIS/EQuIS Client-customized formats Value-Added Services Field Services SC DES Certified field technicians Ground/surface water sampling Soil/waste pile sampling and compositing Potable water and NPDES sampling Field parameter measurements (pH, temperature, conductivity, dissolved oxygen, residual chlorine) Project Management Dedicated project managers for centralized communication Expedited turnaround coordination Technical consultations and QA/QC support Industries Served - Environmental Consulting - Government Agencies - Engineering Firms - Manufacturing - Utilities - Remediation Contractors - Real Estate/Property - Industrial Facilities - Legal/Litigation Support Greenville & Columbia Laboratory Get the Best of Both Worlds. Together. One National Network. ALL Your Lab Needs. Reach an experienced lab advisor today for help at your site. First name Last name* Phone* Email* How can we help?* Talk to an Expert map Back to All Services

Professional engine emissions testing services for stationary engines, generators & compressors. Regulatory compliance testing from Alliance Technical Group. Services / On-Site Testing / Source Testing / Engine Testing Engine Testing Precision Engine Testing for Regulatory Compliance and Performance Assurance Ensure your engines meet EPA and state regulatory standards with expert testing, accurate emissions data, and trusted field-to-lab capabilities. Engine Testing Services Engines | Turbines | Enclosed Combustors | Heaters | Generators Tests Conducted NSPS JJJJ NESHAP ZZZZ NSPS KKKK NSPS OOOOb TAC 106.512 TAC 117 TAC NRSP NMED Periodic WY Portable Analyzer CO Portable Analyzer Green House Gases Methane Permit Specific Spot Checking Research and Development Data Centers Renewable Energy Sources Test Methods EPA Reference Methods 1, 2, 3A, 4, 5, 7E, 10, 19, 25A 320 ASTM D6348 & ASTM D6522 GPA 2261 State of Colorado Portable Analyzer Monitoring Protocol State of Wyoming Air Quality Division Portable Analyzer Monitoring Protocol WY DEQ Division of Air Quality FTIR Stack Testing Guidance Test Process Emissions Testing Compliance Strategy and Planning Creation and Submittal of Pre-Test Notifications Design of Custom Test Protocols FTIR Data Validation On-Site, Real-Time Results Electronic Report Hosting and 24/7 Portal Access ISNetworld, Veriforce and TPS Alert Compliant 6-3-1 Process Our keystone service offering — this process describes the weekly cadence of pre-testing communication during which we coordinate details, conduct research, and prepare protocols to ensure a successful testing experience. Learn More About the 6-3-1 Process Here's the rundown on our proven pre- to post-testing process that involves precise coordination and communication to ensure the best testing results. From start to finish, we stay in constant communication. Learn what happens at the major milestone stages of 6 weeks, 3 weeks and 1 week prior to testing. The 6-3-1 Process 6 Weeks Prior: Preparation Alliance will email test week details to pertinent parties to request information that is unknown and address questions about permit research that has been completed. We hold ourselves accountable to every last detail, because every detail matters. The following week we will prepare any testing notifications or protocols required by the regulatory agency(s) and continue our communication with pertinent parties. Expect our background work and 1:1 communications to continue until mid-way through the process when we will begin sharing details on how testing will be conducted. 3 Weeks Prior: Verification Successful stack testing takes a team approach. Getting the right information to the right people at the right time is our strength. Communicating what’s needed upfront saves time, improves quality and builds camaraderie, ensuring all parties feel connected and informed. At this stage, the full plan begins to come together - from the big picture to the small details. No guesses, no assumptions. We validate the facts and communicate them to ensure everyone involved understands exactly what’s needed, because no two stack tests are the same. 1 Week Prior: Confirmation One week prior to testing day, the Alliance Testing Technician will communicate directly with the customer site contact to confirm the meetup and kickoff schedule for the onsite testing. Additional emails with test week details will be sent to all pertinent parties to ensure there are no surprises. And, if there is a need to adjust to new information or emergent insights, we will adapt accordingly, keeping everyone informed along the way. OGI (Optical Gas Imaging) Alliance Technical Group offers industry-leading OGI services backed by a seasoned team, robust data systems, and a commitment to quality. Whether you operate upstream, midstream, or downstream, our nationwide team delivers high-performance leak detection where and when it matters most. OGI is a flexible solution ideal for diverse industrial sectors and applications: Upstream: well pads, offshore rigs, crude storage Midstream: pipelines, gas terminals, compressor stations Downstream: refineries, above-ground storage tanks Other Sectors: gas utilities, biogas plants, landfills, mining, semiconductor manufacturing OGI is also effective for detecting emissions from compressor rod packing systems, which are a common source of methane leaks in reciprocating engines. By visualizing and pinpointing these leaks in real time, operators can take corrective action before emissions exceed regulatory thresholds or impact equipment performance. Learn More About Our OGI Services Oil & Gas Labs Alliance delivers fast, flexible testing and analysis solutions for the oil and gas industry. We provide comprehensive sampling and analytical services across every stage of energy extraction, transportation, and product delivery. From field collection to advanced laboratory testing, our team ensures accurate, on-time results you can rely on. Learn More About Our Lab Services VIEW OUR ACCREDITATIONS “At Alliance, we pride ourselves on being the largest engine testing company in the U.S., backed by the most expansive network of mobile laboratories. Our deep bench of subject matter experts ensures unparalleled expertise in every project. Through advanced software and a full suite of services—including labs, consulting, LDAR, and OGI—we streamline testing and support the evolving needs of the Oil & Gas industry.” Mike O'Brien Vice President, Oil & Gas First name* Last name* Phone* Email* How can we help?* Talk to an Expert Learn more about Engine Testing Back to All Services

Comprehensive solutions for continuous emissions monitoring and compliance. Manage all your leak detection needs with Alliance today. Services / On-Site Testing & Monitoring / Source Testing Renewable Natural Gas Quantify emissions at the source. Accurate, defensible source testing data that’s measured, analyzed, and reported reliably every time. Our skilled professionals consistently and rapidly deliver that first-class quality service which translates directly into our high client retention and satisfaction rates. Services & Solutions Source Testing Stack | CEMS/Temp CEMS | Engine Testing | RNG Stack Testing Committed to your specific stack testing needs—Alliance’s combination of innovation, technology, and reliability is anchored by a seasoned team of scientists, QSTI-certified professionals, and tenured stack testing managers driving your projects to successful completion. Compliance Demonstration | Engineering/Investigative Test Programs | On-Site FTIR Spectroscopy | Specialty Testing | Low Level PM Sampling | Performance Specification Testing (RATA) Stack Service Details CEMS (Continuous Emissions Monitoring System Services) Reduce your downtime risk with CEMS tailored to your local needs and count on our extensive spare parts stock for fast service on your specific brand of equipment. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental compliance and operational success. Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training Equipment Upgrades | Maintenance | QA/QC Audits | RATA CEMS Service Details Engine Testing Boost efficiency and safety for your combustion source program with our expert advice and mobile solutions.  Our engine testing platform is designed to gauge performance in real-time, which helps you manage your operations and compliance status more efficiently. Flexible Scheduling & Mobility | Fast Response | Reduces Risks It’s a smart move to protect your operations from risks, extend the life of your engines, and get an edge in the market. RNG (Renewable Natural Gas Services) As the demand for renewable natural gas grows, so do the challenges associated with meeting the rigorous pipeline quality standards. These low-level requirements provide no room for sampling or analytical error. We have the expertise and advanced equipment to ensure accuracy, every time. Sampling | Analysis | Reporting | Compliance | Batch Pathway Testing | Product Transfer Documents | Third Party Audits | Investigative Consulting/Engineering Let Alliance’s experienced technicians simplify the sampling, analysis, and reporting procedures for you. Using advanced equipment and analytical capabilities, we manage every step of the RNG testing process. REQUEST INFORMATION Learn more about Source Testing. Back to All Services

Environmental Lab Experts Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. Wastewater NPDES Stormwater VOCs Dioxins PCBs PFAS Inorganics Metals Soil Waste Groundwater Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs The Alliance Lab Network Environmental Laboratory Stack Emissions Laboratory Stack/Oil & Gas Laboratory Potential Courier/
Dropoff Location DOD and NELAP accreditations; lab certifications in over 40 U.S. states and growing. ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More Testing for PFAS—the Forever Chemicals Upstream, Midstream, Downstream Flow stages: origin, process, final delivery. Source Emissions Analysis From extraction to transportation, supporting the entire lifecycle of oil and gas operations. Cr6+, Hg Metal HAPS Acid Gases Complex Organics Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Greenhouse Gas Analysis Renewable Natural Gas, Biogas, & Refinery Gases Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Sales Oil Extended Gas & Liquid Flash Liberation Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for
Specialized Analyses Oil & Gas Labs Environmental Lab Experts Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Reliable Contacts. Trusted Advisors. Alliance Environmental Lab leaders are some of the most experienced environmental scientists in the industry, and are available for your specific concerns. Reza Tand Director Laboratory Services 40 Years of Industry Experience Akron Lab Office: 330-253-8211 Mohammad Ahmed Director Laboratory Services 25 Years of Industry Experience Newark Lab Office: 908-728-3151 Matt Langston Director Laboratory Services 18 Years Industry Experience Seattle Lab Office: 206-352-3790 Chris Tisserat Director Laboratory Services 25 Years of Industry Experience Tustin Lab Office: 714-832-0064 Rebecca Musick Director Laboratory Services 17 Years of Industry Experience Greenville Lab Office: 864-232-1556 ALLIANCE LAB NETWORK Powerful National Lab Network. Trustworthy Local Service. Integrated Environmental Lab Testing for Industrial Sites Already trusted as the nation’s largest provider for Stack testing and LDAR services, Alliance labs seamlessly manage air, oil, and gas analyses. Now, turn to Alliance labs for wastewater, storm water, waste characterization, and more. Source Emissions Analysis Sampling and analysis across all stages of energy extraction, transportation, and product delivery. PM (filterable PM, condensable PM, PM-10, PM-2.5, OTM-37) Metals, including Hg Acid gases Combustion gases Volatile and Semi-Volatile Organics (total and speciated) Dioxins and Furans Formaldehyde Specialty Testing (PFAS, EtO, Combustors) Air Labs Permit Driven Analysis Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Greenhouse Gas Analysis RNG, Biogas, & Refinery Gases Sales Oil Extended Gas & Liquid Flash Liberation Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for
Specialized Analyses Oil & Gas Labs Upstream, Midstream, Downstream Environmental Labs Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Testing for PFAS—the Forever Chemicals Source Emissions Analysis Sampling and analysis across all stages of energy extraction, transportation, and product delivery. PM (filterable PM, condensable PM, PM-10, PM-2.5, OTM-37) Metals, including Hg Acid gases Combustion gases Volatile and Semi-Volatile Organics (total and speciated) Dioxins and Furans Formaldehyde Specialty Testing (PFAS, EtO, Combustors) Upstream, Midstream, Downstream Permit Driven Analysis Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Greenhouse Gas Analysis RNG, Biogas, & Refinery Gases Sales Oil Extended Gas & Liquid Flash Liberation Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for Specialized Analyses Air Labs Oil & Gas Labs Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on You On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Get the Best of Both Worlds. Together. One National Network. ALL Your Lab Needs. Discover Wastewater, Storm Water, and Waste Characterization services from Alliance. The better source for all your environmental testing needs. One National Network. ALL Your Lab Needs. Reach an experienced lab advisor today for help at your site. First name* Last name* Phone* Email* How can we help?* Talk to an Expert Reach an experienced lab advisor today for help at your site. First name* Last name* Phone* Email* How can we help?* Talk to an Expert We grew into the trusted all-in-one provider that every client desired. How can we make your compliance journey better? ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More

Renewable Natural Gas (RNG) testing & compliance services. Specialized testing for biogas facilities, landfills & anaerobic digesters from Alliance. Services / On-Site Testing / Source Testing / RNG (Renewable Natural Gas) Renewable Natural Gas (RNG) Services Precision Testing. Personalized Support. Pipeline-Ready Results. Renewable Natural Gas—also known as RNG, biomethane, or biogas—is a clean, sustainable energy solution with growing impact. As solid waste, wastewater, and agricultural operations embrace this fuel of the future, ensuring safe, compliant pipeline entry has never been more critical—or more complex. End-to-End RNG Testing & Compliance Services From the first sample to final reporting, Alliance simplifies RNG compliance with full-scope support in the United States and Canada. Sampling & Field Services Specialized services for water and hydrocarbon dewpoint, moisture content, and custom site needs. Skilled scientists handle your sampling, and often in as little as 1–2 days. Laboratory Testing & Analysis Our certified labs perform high-precision analysis for: H₂S Siloxanes CO₂/O₂ Ammonia Mercury VOCs Pesticides/PCBs Volatile Metals Biologicals Carbon-14 Moisture/Dewpoint Particulate and Compressor oil Regulatory & Compliance Support Air Permitting NSPS & NESHAP Greenhouse Gas (GHG) Reporting NPDES SPCC Pathway Registration (40 CFR Part 80) OSHA (confined space, hazardous materials, PPE, and process safety) Waste Management Batch Pathway Testing Product Transfer Documents (PTDs) Third-party audit coordination North American Consulting & Planning Get dedicated, experienced help from RNG scientists and engineers to determine if your facility needs comprehensive baseline testing or a less intensive path to meet quality and cost goals. We build and manage your sampling calendar to keep everything on track. The Alliance Difference Widespread Coverage, Reliable Results Rely on the powerful Alliance network for national sampling and lab capabilities, rapid turnaround and precision. Compliance Peace of Mind Our team is fluent in the requirements of interconnect agreements, EPA pathways, and emerging policies. We help de-risk your testing process and streamline your path to certification. Tailored Testing Solutions Every RNG site is different. We build the process around your feedback, your infrastructure, and your goals. Superior Client Service Clients work directly with expert scientists, engineers, and experienced RNG consultants who take time to explain the science and the strategy behind every result. Supporting Every RNG Pathway Alliance supports RNG testing and compliance at every stage of development: Landfill Gas Projects Wastewater Treatment RNG Dairies and Agricultural Digesters Food Waste-to-Energy Facilities Pipeline Interconnect Commissioning Whether you’re just starting site feasibility or operating a full-scale production facility, we’ll help you minimize risk, maximize uptime, and meet even the most rigid pipeline quality standards. RNG Testing—Challenge Accepted RNG sampling and analysis can be complex. Alliance makes it clear, fast, and reliable—so you can focus on producing clean, profitable energy. VIEW OUR ACCREDITATIONS “No two RNG projects are the same. That’s why we deliver customized testing solutions, clear results, and trusted guidance—every step of the way.” Shane Lee RNG Program Manager Contact an RNG Advisor First name* Last name* Phone* Email* How can we help?* Talk to an Expert Read More About RNG with Alliance Back to All Services