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.

Markets / Oil & Gas Serving the Upstream & Midstream Oil & Gas Industry Upstream and midstream operators face growing regulatory complexity, methane reduction pressure, workforce shortages, and increasing expectations for consistent, accurate emissions data across widespread assets. They must manage compliance without disrupting production, coordinate multiple vendors, and maintain reliability during tight maintenance windows - all while navigating evolving ESG and state and federal rules. Alliance solves these challenges by providing a single, scalable partner for consulting, engine testing, LDAR, laboratory analysis, and centralized reporting, backed by rapid mobilization and deep regulatory expertise. Through this integrated approach, Alliance has built a center of excellence that helps upstream and midstream clients stay compliant, stay operational, and stay ahead of emerging requirements. Our end-to-end environmental services combine consulting, engine testing, OGI, LDAR, laboratory analysis, and mobile air monitoring, all delivered by the industry’s most experienced practitioners. The outcome is better data, stronger decisions, and sustained operational performance across your entire network. Step-by-Step Service Capabilities and Technical Processes Environmental Consulting & Program Design Gap assessments to identify priorities across upstream & midstream operations. Program design defining LDAR scope, OGI frequencies, fenceline strategies, & engine testing aligned with maintenance & production. Modern data workflows using SkyBridge for GPS-verified inspections, real-time syncing, & automated reporting. Mobile air monitoring with GMAP for rapid source screening & geospatial mapping of BTEX, VOCs, & SO2. Engine, Turbine, & Generator Testing Asset inventories & readiness planning to minimize operational disruption. Performance testing of combustion efficiency, load, & emissions to support proactive maintenance. Defensible results with integrated dashboards for clearer operational decisions. Compliance support ensuring testing methods, documentation, & results align with regulatory & permit requirements. Alliance provides complete, end-to-end engine, turbine & generator compliance management , including testing, reporting, scheduling, & regulatory communication. Fugitive Emissions Testing & Monitoring OGI execution with FLIR, drone support, & SkyBridge for instant media capture; supports Appendix K & AWP. Method 21 measurements to verify leak status & repair priorities. Comprehensive LDAR management including tagging, inventory, BWON/HRVOC support, turnaround coordination, & QA/QC. Tracer gas testing with helium to detect ultra-small leaks & reduce safety and product-loss risks. CEMS provides full-service integration, rapid deployments, & QA/QC + RATA support. Laboratory Testing & Analysis Custody transfer verification with precise analysis & defensible documentation. GHG and hydrocarbon analysis for gases, liquids, NGLs, crude, condensate, & produced water. Air, soil, & water testing with fast turnaround & broad accreditations for operational & long-term support. Quality assurance & method validation to ensure consistent, defensible results across all sample types & testing workflows. REQUEST INFORMATION

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

Critical 2025 air quality reporting deadlines & compliance guidance. Stay compliant with EPA requirements. Expert assistance from Alliance consultants. 2025 Air Reporting Deadlines The Better Way to Navigate Compliance Reporting deadlines are approaching fast—be proactive with expert help. Environmental compliance is more than just remembering a date—we know the process can be complicated. That’s why Alliance takes a proactive approach. Staying ahead gives us the flexibility to handle unexpected adjustments and ensure you meet your goals—on time. From deadline reminders to consulting expertise and even reporting, our experienced environmental consultants and compliance professionals help you every step of the way. Take the complexity, uncertainty, and hassle out of regulatory standards. Contact us to help you navigate compliance with confidence. Content h3 Click a State From the Map Below to View Air Reporting Deadlines Disclaimer: Alliance Technical Group shall not be held liable for any reliance on this content. It is the responsibility of the user to confirm compliance with all applicable regulations.

Reliable Stack Testing Services from Alliance Technical Group As part of Alliance Technical Group, you now have access to the largest and most experienced air emissions testing network in the country. We’re committed to seamless service, responsive communication, and the same quality you’ve always relied on—now backed by expanded resources and expertise. 256-351-0121 Previous Item Next Item

Hazardous Organic NESHAP (HON) compliance services & expertise. Regulatory strategy, testing & compliance management for chemical manufacturing facilities. 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. Keep this page handy to quickly find critical compliance dates, requirements, and advice as you begin your implementation programs. Affected Source Types Content h3 What’s Changing? When’s Your Compliance Deadline? For every affected source—it’s wise to act early so you’ll have the foresight to understand where moderations and capital costs may be needed, and how to strategize the scheduling. Expand the tiles for key HON RTR facts at a glance. Our experts will soon be updating their areas with tips and advice. For immediate questions, contact our HON team for answers. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Together. Proactively. At Alliance Technical Group, our consultants and other subject matter experts review regulations that affect our clients. They are dedicated to knowing your industry needs and delivering tailored, best-in-class solutions. We encourage you to get familiar with the most recent HON amendments here. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Meet the Expert Jill Martin, Project Director, Environmental Consulting Jill’s extensive experience with the Chemical Manufacturing Sector, including her expertise with HON, makes her your trusted partner. Compliance Program Implementation Support | Gap Analyses | Technical Support Jill’s Proficiencies: Air Compliance Initial Compliance and Other Applicability Determinations (Chemical Manufacturing Sector NSPS and NESHAP regulations & Petroleum Refinery Sector NSPS and NESHAP regulations) Comprehensive Compliance Program Development (Above ground Storage Tanks, RICE, CEMS, Flares) Reporting Greenhouse Gas Mandatory Reporting Requirements Emissions Inventory Toxic Release Inventory Title V Compliance Reporting Consent Decree Compliance Reporting Periodic NSPS Compliance Reporting Periodic MACT Compliance Reporting Air Permitting Title V Permitting Miscellaneous Permitting Actions Public Notice Coordination Miscellaneous RCRA Permitting and Compliance Stack Test Observation Ambient Air Monitoring Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Partners in Proactive Implementation Quelling Concerns. Answering Questions. With so many details to know about HON RTR amendments, is your path to compliance clear for you? What’s the impact going to be, and how do you get started? Tap into Jill’s expertise and Alliance resources for your solutions. Between Jill and our other subject matter experts at Alliance, clients receive the most premium end-to-end environmental services from expert consulting services to testing, monitoring, and laboratory services available. Get reliable and prompt solutions for whatever regulatory challenges you may have. It’s the better way to ensure compliance. Get Help With Hon Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later.

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 source testing services including stack testing, CEMS, engine testing & specialty emissions testing. Industry-leading accuracy & compliance. 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 Data Acquisition Systems Our 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. StackVision Software | Prism Software | 8864 Data Controllers | DAS Engineering | DAS IT & Security Services | Regulatory & Reporting | QA/QC | Data Management View Our DAS Software Options 8864 Data Controllers Every Alliance DAS — StackVision and Prism — works alongside the 8864 Data Controller, our industry-standard hardware platform. Acting as the link between your emissions monitoring rack and DAS software, the 8864 collects analog and digital analyzer signals, performs real-time calculations, and delivers validated data to your DAS for compliance reporting. Learn More About The 8864 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. Engine Testing Details 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. RNG DETAILS Talk to an Expert “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. Back to All Services

EPA's final PCWP NESHAP rule puts 219 wood products facilities on a July 2029 testing clock. See what the rule requires and how to build your test plan.

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

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

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

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

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SCAQMD Rule 1469 Deadline is Approaching Fast. Schedule Your Testing Today. If your facility has certain dates in mind, the only way to guarantee them is to schedule early. 256-351-0121 Previous Item Next Item

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