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

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

I am a title 04 This is a paragraph. It is connected to a CMS collection through a dataset. Click “Edit Text” to update content from the connected collection. This is a paragraph. It is connected to a CMS collection through a dataset. Click “Edit Text” to update content in the connected CMS collection. The CMS can be used to store website content, or to collect data from site visitors when they submit a form. The CMS collection is already set up with some fields and content. To customize it with your own content, import a CSV file or simply edit this placeholder text from the collection. You can also add more fields, which you can then connect to other page elements to display content on your published site. Previous Item Next Item

Pinpoint Rod Packing Leaks with Optical Gas Imaging Our certified LDAR technicians use advanced FLIR infrared cameras to detect and quantify emissions from rod packing systems in upstream, midstream, and downstream environments. We deliver actionable insights and compliance-ready data to help you meet regulatory standards like Reg 7 and 40 CFR Part 60 while minimizing fines and environmental risk. 256-351-0121 Previous Item Next Item

Get Ahead of OOOOb NHV Compliance — Secure Your Testing Schedule Today From intermittent sources like produced water tanks to flare feeder streams, Alliance delivers proven solutions for even the toughest NHV testing scenarios. Our responsive teams, deep industry experience, and advanced logistics ensure every step—from planning to analysis—is handled with precision and care. 256-351-0121 Previous Item Next Item

Expert environmental consulting services for air, water & natural resources. Regulatory compliance, permitting & risk assessment from Alliance Technical Group. Services / Environmental Compliance / Environmental Consulting Environmental Consulting Environmental consulting built for compliance. A trusted authority on refining, chemical manufacturing, and oil & gas industries, Alliance partners with you to provide professional guidance, specialized services, and precision-driven solutions in air, water, and natural resources. With proficient and efficient environmental consultants on your team, you can be confident in accuracy, consistency, and responsiveness. Security of one source. Working with one proven, capable partner helps simplify processes, reduce risks, and build stronger business relationships with greater strategic value. Compliance peace of mind. With active roles in various trade groups, our consultants assure your regulatory compliance with comprehensive plans and step-by-step support. Short response times guaranteed. It’s never a good time for an incident, but our rapid-deployment teams get clients back on track fast, with mitigation strategies to minimize costs and protect reputations. Services & Solutions Environmental Consulting Air Quality | Water Quality | Natural Resources | Engineering Specialists in designing and building environmental programs that work, our consultants help you identify, understand, and address potential areas of environmental vulnerability and risk. Air Quality Services Air Permitting Collaborating with environmental, operational, and project teams, we deliver permit applications that effectively minimize compliance risks. We also work with local, state, and federal agencies to secure permits swiftly. Air Compliance Get tailored compliance and tracking solutions developed specifically for your organization. Air Dispersion Modeling Providing nationwide expertise in air pollutant dispersion modeling, Alliance consultants conduct National Ambient Air Quality Standards (NAAQS) impact evaluations and state toxics screenings, with proficiency in various air dispersion models such as SCREEN3, Industrial Source Complex Short-Term Model Version 3 (ISCST3), American Meteorological Society/Environmental Protection Agency Regulatory Model Screening Tool (AERSCREEN), and American Meteorological Society/Environmental Protection Agency Regulatory Model (AERMOD). Reporting Building on a significant track record of hundreds of successful environmental compliance reports for industrial and municipal facilities across the U.S., Alliance also provides the detailed, internal documentation required to obtain responsible official certification. Geospatial Measuring of Air Pollutants( GMAP) On-Demand Mobile Monitoring From identifying unknown emission sources and enhancing existing programs to assisting with EPA inspections and responding rapidly during incidents—GMAP uses real-time technology to deliver live data that can be accessed while in the field, allowing for immediate compliance. Risk Reduction | Real-Time Air Monitoring | Detailed Snapshots | Customized Backed by extensive expertise from EPA’s Office of Research and Development (ORD) GMAP program. Odor Assessment Services Odors from agricultural, commercial, industrial, and municipal sources can negatively affect nearby residents. Alliance offers specialized solutions for all your odor challenges. Odor Impact Assessments | Odor Emission Source Sampling |Odor Compliance Testing | Odor Consulting – Expert Witness Testimony Water Quality Services Hydrological & Hydraulic Studies Assisting you with TMDL, waste load allocations, and flow analysis, our specialties include dye tracer studies, flow modeling (such as HEC-RAS), and direct flow measurements. We help calculate regulatory low flows (e.g., 7Q10) to adjust pollutant load limits, working closely with state agencies, USGS, and EPA to ensure your water quality projects are successful. NPDES Permitting Your goal is our mission—to minimize costs associated with meeting water quality standards and effluent guideline requirements. We cover permit application development, review and negotiations; Adjudication support, reparation of pollution prevention plans, and NPDES data systems management (including Discharge Monitoring Report (DMR) preparation). Stormwater Assisting industrial, construction, and municipal clients achieve cost-effective compliance with local, state, and federal stormwater discharge regulations. Natural Resources Services Biological Assessment Leveraging advanced techniques for fish, macroinvertebrate, periphyton, zooplankton, phytoplankton, and habitat analysis across diverse environments, our specialists are equipped to handle multiple site surveys in various waterbody sizes. Human Health Ecological Risk Assessment Our scientists, toxicologists, and engineers support industrial clients evaluating contaminants in groundwater, soil, sediment, surface water, and air, including heavy metals, petroleum compounds, VOCs, and other industrial pollutants. Stream and Wetland Restoration and Mitigation From step-pools and riffles to bank stabilization and in-stream habitat features, our team of ecologists, hydrologists, engineers, and wetland scientists collaborate to effectively restore and enhance wetland habitats for mitigation and water/stormwater treatment. USACE Permitting Providing strategic US Army Corps of Engineers (USACE) permitting services to reduce, avoid, or minimize impacts on Waters of the US, while controlling permitting and mitigation costs. Civil and Environmental Engineering Water, Wastewater, and Stormwater Design We provide solutions to wastewater, stormwater, and potable water infrastructure requirements for municipal, commercial, and industrial clients. Site Design Our site design capability includes planning, permitting, design, bidding, construction administration, and construction inspections. We serve residential and commercial developments, railways, and industrial facilities. Permitting & Funding Assistance We provide regulatory guidance and compliance assistance navigating the application of various federal and state environmental and permitting programs, and low-interest funding and loans. Industrial Process Capabilities Alliance has a team of engineers experienced in project studies and the design of industrial process solutions for chemical, pulp & paper, and pharmaceutical plants. Process and Mechanical Engineering As part of our industrial engineering services, we provide process and mechanical engineering studies to improve productivity by identifying, correcting or preventing weaknesses in the manufacturing and process systems. Surveying and Mapping Alliance has both licensed surveyors and Geographic Information System (GIS) mapping experts in order to provide a seamless approach to every job and a higher-quality end result. REQUEST INFORMATION “Compliance is not just a requirement but a commitment. Our proactive approach to environmental compliance ensures that we not only meet regulatory standards but exceed them—leading the way in assisting our clients with their compliance goals.” HON RTR Amendment Years of Details. Clear Road to Compliance. The final EPA Risk and Technology Review (RTR) amendments for Hazardous Organic NESHAP (HON) became effective on July 15, 2024 . It’s important to know what, when and how to plan for your course of action. Find critical compliance dates, requirements, and advice as you begin your implementation programs. Back to All Services

Meet all your oil & gas lab testing and analysis needs seamlessly with our full-service laboratory with several years of expertise in Denver, CO. Services / Lab Testing & Analysis / Oil & Gas / Midland Oil & Gas Lab Denver Oil & Gas Lab About Alliance Technical Group - Denver is an oil & gas testing laboratory offering comprehensive analytical services for crude oil, condensate, produced water, and gas matrices. Our laboratory combines expertise with state-of-the-art instrumentation and automation to deliver accurate, timely results that meet environmental and measurement needs. REQUEST INFORMATION 720-253-0693 720-253-0693 Core Capabilities Oil/Condensate Obtaining Liquid Samples - GPA 2174 Extended NGL (C10+) – GPA 2186 NGL (C6+) – GPA 2177 Extended Oil (C36+) – GPA 2103M/2186M Flash Liberation Analysis – GPA 2122/CDPHE 17-01 Vapor Pressure – ASTM D6377/5191 Density (API Gravity) – ASTM D5002 Methanol in NGL – ASTM D7423 Gas to Oil Ratio (GOR) Bubble Point (ProMax) Gas Obtaining Gas Samples – GPA 2166 Routine Natural Gas (C6+) – GPA 2261 Extended Gas (C10+) – GPA 2286 Natural Gas (C6+, BTU) – ASTM D1945/46 Methanol in Gas – ASTM D7423 Produced Water Flash Liberation Analysis Extended Flash Gas – GPA 2286 Gas to Water Ratio (GWR) Sample Information Sample Receiving Hours: Monday-Friday, 8:00 AM - 5:00 PM After-hours delivery available by appointment Samples received after 4:00 PM begin TAT next business day at 8:00 AM Turnaround Times Standard: 7-10 business days from receipt Expedited options available:* Same Day Next Day 2 Days 3 Days *Expedited TAT should be coordinated in advance Reporting & Data Deliverables Excel/PDF/Portal Standard Format Web Portal Other Client Formats Project Management Dedicated project managers for central communication Project “kick-off” meetings 24/7 laboratory operation capability Expedited turnaround coordination Technical consultations and QA/QC support Industries Served - Environmental Consulting - Engineering Firms - Government Agencies - Oil & Gas Denver 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

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

Need Stack Testing Fast? Texas Teams Ready to Mobilize As the largest stack testing company in the U.S., Alliance brings national scale with established Texas crews who understand your requirements and timelines. We support facilities facing last-minute changes and tight compliance deadlines without adding stress. 256-351-0121 Previous Item Next Item

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

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

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

Advanced optical gas imaging (OGI) services for leak detection. Real-time monitoring, regulatory compliance & improved operational safety solutions. Services / On-Site Testing / Fugitive Emissions / Optical Gas Imaging Optical Gas Imaging (OGI) See the Unseen Using Optical Precision OGI cameras are engineered to rapidly detect leaks with high-resolution imaging, enabling the visual identification of even the smallest gas leaks across many hundreds of components. EXPERIENCE Our certified OGI technicians, including licensed drone pilots and seasoned leaders, bring deep expertise and widespread coverage across the U.S. and Canada, with extensive field experience in optical gas imaging. EQUIPMENT We deploy a robust inventory of OGI cameras, drone-camera systems, and portable Method 21 VOC analyzers—supported by our cloud-based platform for efficient data reporting and management via web and mobile. PROJECTS & CLIENTS As a trusted LDAR partner, we serve oil and gas companies throughout North America, delivering proven results across a wide range of projects involving well pads, tanks, and pipeline infrastructure. OGI Services Optical Gas Imaging (OGI) is a game-changing technology that enables the visual detection of gas leaks in real time—quickly, safely, and with unparalleled accuracy. By identifying fugitive emissions at the source, OGI enhances operational safety, reduces environmental impact, and lowers compliance costs for industrial facilities. 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. Applications 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 Engine Testing Services What are the benefits of having an OGI camera program? Reduce product loss Increases safety for workers and operators Decreases hazardous exposure for the surrounding community Reduces or eliminates potential fees and fines Regulatory Coverage Our services are fully aligned with federal and state requirements, including: Subparts OOOOa, OOOOb, OOOOc Subpart W 40 CFR Part 60, Appendix K Alternative Work Practice (AWP) Regional standards like Rules 1173 & 1178 SkyBridge OGI Software SkyBridge is our proprietary, cloud-based platform designed to streamline leak detection workflows. It enables: Real-time image capture and tagging Synchronized data entry across sites Secure mobile and web access Simplified reporting and regulatory documentation This all-in-one system eliminates manual processes and fragmented tools, giving clients a centralized, efficient solution for emissions management. See How SkyBridge OGI Works REQUEST INFORMATION VIEW OUR ACCREDITATIONS Back to All Services

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

Environmental assessment & remediation services including site characterization, soil testing & groundwater remediation. Expert solutions from Alliance TG. 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/CERCLA | 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.” Back to All Services

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