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. A History of Loyalty and Service: What makes a dedicated Stack Team. Loyalty isn’t just a word; it’s a practice. Marking his 20-year anniversary at Alliance, Snapper Armstrong, Vice President of Sales for ... Harnessing Renewable Natural Gas: A Sustainable Path to Climate Goals and Methane Reduction Reducing methane emissions has become a critical focus in the fight against climate change. Methane, a greenhouse gas, has over 25 times ... Saluting Earth Month Heroes: The Secondary Aluminum Industry During Earth Month, Allianc Technical Group honors our industry partners dedicated to environmentally responsible practices that generate... Back to All Services

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Services / Environmental Compliance / Assessment & Remediation Assessment & Remediation Understand and reduce your impact. Get expert advice and solutions for your environmental issues. We help clients understand potential risks in property transactions, assess known or suspected environmental impacts, and remediate existing contamination in soil, water, and air using an arsenal of investigative procedures and decades of experience to develop practical, cost-effective solutions. Environmental site assessments. Comprehensive due diligence in delivering full-service Phase I & II Environmental Site Assessments using ASTM standards. Investigative remediation services. Client need-based solutions are expertly delivered for contamination remediation of Air, Water, and Soil Matrices, including In-Situ Chemical Oxidation, Enhanced Bioremediation, and Soil Vapor Extraction. Advanced impact management. Decades of experience come together to offer solutions for wetland delineation, RCRA/CERCLA permitting, and long-term monitoring for environmental compliance and impact. Services & Solutions Assessment and Remediation Services Environmental Site Assessment Phase I and II | Wetland Delineation | Brownfield Redevelopment | RCRA/CERLA | Permitting | Media Management Planning | Remediation | ALTA Surveys | Topographic Surveys | Zoning Reports | Site Investigations | Brownfield Redevelopment Phase 1 Environmental Site Assessment (ESA): Phase 1 ESAs are conducted in general conformance with ASTM Standard E1527-21. The primary goal of a Phase I ESA is to identify recognized environmental conditions (RECs), which refer to the presence or likely presence of hazardous substances or petroleum products on a property that could pose a risk to human health or the environment. Historical Data Review Regulatory Database Review Site Reconnaissance Interviews Our team's capability to complete Phase 1 ESAs with a quick turnaround time ensures a comprehensive evaluation of the property's environmental status, facilitating informed decision-making regarding future actions. Phase 2 Environmental Site Assessment (ESA): A Phase II Environmental Site Assessment (ESA) is essential for evaluating a property's environmental condition and identifying potential contamination risks. This process involves several critical steps to ensure a thorough analysis. Sampling soil, groundwater, and air Using advanced equipment to collect samples Laboratory analysis to detect contaminants Risk assessment based on regulatory standards Detailed reporting with recommendations Our experienced team uses state-of-the-art equipment to provide reliable, actionable insights, helping clients mitigate risks and make informed decisions on property transactions or developments. Property Condition Assessment Conducting a Site Reconnaissance Reviewing Relevant Documents Interviews Reviewing User-Provided Information Cost Estimation Replacement Reserves Schedule Preparation of a PCA Report Remediation Following a site assessment, we address environmental impacts and reduce contaminants with custom-designed methods tailored to each situation. We avoid generic remediation plans, providing in-situ and ex-situ treatments and work closely with clients to find cost-effective solutions. These may involve traditional or innovative remedies, depending on site complexity. Our technologies include Chemical Oxidation and Reduction, Enhanced Bioremediation, Pump and Treat, Excavation, Soil Vapor Extraction, and Thermal Desorption. REQUEST INFORMATION “Through a proactive approach, we don’t simply meet regulatory standards—we exceed them, setting new benchmarks in environmental responsibility and empowering our clients to achieve their compliance goals with confidence.” Jeff Lask Senior Vice President Back to All Services

Services / On-Site Testing & Monitoring / Source Testing Source Testing 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. Resource-ready. A wide North American footprint and consistent investment in state-of-the-art equipment positions our dedicated teams of skilled specialists to respond efficiently to each client’s source testing needs. Trustworthy expertise. The multi-disciplinary expertise of our staff ensures our clients receive full-service guidance on regulatory compliance, industrial processes, source emissions testing, monitoring, and analysis. Actionable insights. Accurate, quality-controlled emissions data enables clients to make real time data-driven decisions—and our dedicated Technical Services team ensures test results are accurately reported to regulatory authorities. 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 “It’s our daily priority to put in the work to build a culture where Quality, Integrity and Consistency are the standard. Our clients benefit from that culture in the form of accurate, defensible test data provided by skilled professionals.” Ryan O’Dea Senior Vice President, Stack Testing Learn more about Source Testing. A History of Loyalty and Service: What makes a dedicated Stack Team. Loyalty isn’t just a word; it’s a practice. Marking his 20-year anniversary at Alliance, Snapper Armstrong, Vice President of Sales for ... Harnessing Renewable Natural Gas: A Sustainable Path to Climate Goals and Methane Reduction Reducing methane emissions has become a critical focus in the fight against climate change. Methane, a greenhouse gas, has over 25 times ... Saluting Earth Month Heroes: The Secondary Aluminum Industry During Earth Month, Allianc Technical Group honors our industry partners dedicated to environmentally responsible practices that generate... Back to All Services

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: Temp CEMS: Q&A With an Expert Alliance specialists are busier in the field than ever. We caught up with the group manager while he was on standby installing Temp CEMS ... CEMS: Your Key to Operational Success A well-maintained Continuous Emissions Monitoring System (CEMS) is a key component of operational efficiency. By ensuring that your CEMS ... Back to All Services

Reach out to us for your testing, monitoring, and lab needs. 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 50 testing and laboratory locations across the United States and Canada, we are where you need us. Contact us Please note that we do not request personal information via e-mail. All applications for careers are made through the Alliance Career Center , which is a secure portal. Also, please note that the domain "talents-alliancetg.com" is not affiliated with Alliance Technical Group.

Services / On-Site Testing / Source Testing / Stack Testing Stack Testing Expect the best from the largest stack testing provider in the U.S. Receive consistent, responsive service from skilled stack testing professionals. Expect best in class response for deliverable creation and clear accurate reporting to help you meet all of your compliance demonstration and performance requirements. Stack Testing Services Compliance Demonstration | Engineering/Investigative Test Programs | On-Site FTIR Spectroscopy | Specialty Testing | Low Level PM Sampling | Performance Specification Testing (RATA) Compliance Demonstration 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) Baghouses, Cyclones, and ESPs FGD and dry scrubbers SCR and NSCR Oxidizers (thermal, regenerative, and catalytic) Engineering/Investigative Test Programs Do you have a high priority compliance test on the calendar and want advanced assurance that your process and controls are performing adequately? Are you experiencing process-related challenges that accurate emissions data could help diagnose and solve? Our experienced testing professionals are well equipped to help you design a measurement program to address all the above safely and efficiently. And our fully integrated consultants are accessible for SME 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 Testing One of Alliance’s key stack testing differentiators is our ability to plan and execute testing solutions for the most complex emissions targets and scenarios. 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 PM Sampling When facing the rapidly decreasing compliance thresholds for PM, PM-10, and PM-2.5, you need a highly experienced testing partner to create a testing plan to mitigate the many challenges associated with accurately quantifying very low levels of particulate matter. When every grain of PM matters, Alliance ensures accuracy with advanced equipment, a fully developed internal laboratory network, and nuanced quality control procedures. On-Site FTIR Spectroscopy Whether demonstrating compliance with a very low-level pollutant standard (formaldehyde, ethylene oxide, HCl) or addressing complex process gas stream challenges, Alliance has the advanced instrumentation and a deep bench of FTIR spectroscopists to help navigate the complexity inherent to this sampling approach. REQUEST INFORMATION “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 VIEW OUR ACCREDITATIONS View Accreditations Learn more about Source Testing. A History of Loyalty and Service: What makes a dedicated Stack Team. Loyalty isn’t just a word; it’s a practice. Marking his 20-year anniversary at Alliance, Snapper Armstrong, Vice President of Sales for ... Harnessing Renewable Natural Gas: A Sustainable Path to Climate Goals and Methane Reduction Reducing methane emissions has become a critical focus in the fight against climate change. Methane, a greenhouse gas, has over 25 times ... Saluting Earth Month Heroes: The Secondary Aluminum Industry During Earth Month, Allianc Technical Group honors our industry partners dedicated to environmentally responsible practices that generate... Back to All Services