Markets / Power & Energy Serving the Power Generation & Energy Industry Today’s power generators face a shifting compliance landscape marked by aging infrastructure, rising emissions expectations, and increasing demand for accurate, defensible environmental data. These challenges can strain internal teams and expose operators to unnecessary operational and regulatory risk. Alliance partners with power clients to deliver dependable emissions testing, continuous monitoring expertise, and strategic compliance guidance that strengthens reliability, simplifies reporting, and helps facilities meet the highest regulatory standards. Our end-to-end services integrate industry-leading DAS technology, full lifecycle CEMS support, emergency temporary monitoring, and expert compliance and reporting services, all delivered by the industry’s most experienced practitioners. The outcome is maximized system uptime, defensible emissions data, and sustained compliance performance across your entire facility network. Step-by-Step Service Capabilities and Technical Processes Industry-Leading Data Acquisition System StackVision DAS implementation with custom configuration to facility requirements and user-friendly, no-programming interface. Real-time compliance visibility through customizable dashboards, color-coded alarms, and fleetwide monitoring from a centralized location. Automated data management for corrections, built-in QA/QC tools for linearity, RATA, and audit management. Streamlined compliance reporting with pre-configured Part 60/63/75 reports, direct XML/JSON generation for ECMPS/CEDRI, and automated distribution. Continuous Emissions Monitoring Systems (CEMS) Custom system design & turnkey installation with inhouse engineered equipment, racks, and shelters for demanding EPA applications. Comprehensive parts inventory from leading manufacturers to minimize downtime. Preventive maintenance programs with customized plans, predictive maintenance approach, and QA auditing/RATA performance testing. Training & knowledge transfer providing hands-on expertise in construction, installation, troubleshooting, and repair to build internal capability. Temporary CEMS Solutions Rapid emergency response with national footprint enabling accelerated deployment during unplanned outages. Custom mobile monitoring using trailer-based systems with advanced capabilities (dual source, GC, FTIR) or compact cabinet units for hazardous areas. Comprehensive parameter coverage for criteria pollutants (NOx, CO, SO2, VOCs, THC, flow) on boilers, furnaces, FCCUs, SRUs, plus specialty monitoring for H2S, total sulfurs, HRVOCs, and net heating value. Seamless data integration with analog current loops, Modbus TCP/IP/RS232, and real-time digital I/O compatible with existing facility systems. Compliance & Reporting Services Expert regulatory guidance with proactive compliance monitoring, supporting initial applicability determinations keeping facilities informed of pending and new regulations. Proactive weekly and monthly data reviews to identify issues early, validate data quality, and prevent potential violations and costly fines. Seamless regulatory report generation covering Part 75 EDRs, Part 60 state/permit reporting, and CEDRI submission support. Monitoring plan updates and QA/QC plan development aligned with Part 75 and permit requirements. Integrated environmental compliance services supporting permitting, monitoring, testing, LDAR, modeling, and onsite compliance execution through one Alliance team. Stack Testing Services Compliance demonstration testing , including particulate matter, metals (including mercury), acid gases, combustion gases, organics, and formaldehyde. Performance specification testing (RATA) supporting Part 60, Part 63, and Part 75 CEMS certification, recertification, and audit readiness. Air pollution control device evaluations supporting emissions compliance, performance verification, and regulatory testing requirements. Engineering and investigative test programs , including low-level PM and specialty testing, to support unit changes, troubleshooting, fuel transitions, and compliance planning. Laboratory Testing & Analysis Precise measurement of air quality samples for pollutants and hazardous gases including Cr6+, Hg, Metal HAPS, Acid Gases, and complex organics. National laboratory network with broad state, federal, and TNI accreditations, delivering fast turnaround and consistent results aligned with regulatory requirements. Volatile and semi-volatile organic analysis using EPA-approved methods to support emissions testing, permitting, and environmental compliance. Quality assurance & method validation to ensure consistent, defensible results across all sample types & testing workflows. REQUEST INFORMATION

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

Markets / Data Centers Serving the Data Center Industry Data centers face increasing pressure to deliver reliable, 24-7 computing power while navigating environmental regulations, power generation requirements, and sustainability commitments. Managing large fleets of backup generators, on-site power infrastructure, air permitting, and environmental compliance can create significant operational and regulatory challenges. Alliance helps data center operators address these complexities by providing end-to-end environmental solutions - from air permitting to generator stack testing, emissions monitoring systems (CEMS/DAS), and environmental laboratory services. With deep technical expertise and nationwide coverage, Alliance helps ensure data centers maintain operational reliability, meet regulatory obligations, and scale their infrastructure with confidence. One partner for every environmental compliance need across your data center portfolio. From backup power testing to air permitting, water compliance, and continuous monitoring. Alliance is the largest Engine Testing, Stack, CEMS, and LDAR Service Provider in North America. Service Capabilities and Technical Processes Engine, Turbine & Generator Testing State and federal compliance testing for backup diesel generators, natural gas engines, and combustion turbines Data center-specific expertise with fleets ranging from dozens to hundreds of units Custom stack extensions and engineering solutions for generators with limited access Flexible scheduling coordinated around maintenance windows and operational constraints Defensible results with integrated dashboards and electronic CEDRI reporting Stack Testing & Source Emissions Compliance demonstration testing for NOx, CO, PM, VOCs, & HAPs Engineering and investigative test programs On-site FTIR spectroscopy and specialty testing Low-level PM sampling for facilities near attainment thresholds Performance specification testing (RATA) for continuous monitors Air dispersion modeling support for permitting CEMS & Temporary CEMS Turnkey CEMS integration for on-site power generation and micro-grid facilities Installation, commissioning, and training DAS (Data Acquisition System) solutions for real-time emissions data management QA/QC audits and ongoing maintenance programs RATA testing and certification Rapid deployment capability for emergency or interim monitoring needs Laboratory Testing & Analysis Water testing for cooling system discharge, stormwater, and NPDES compliance Wastewater characterization for pretreatment and POTW discharge requirements Air and source emissions analysis : Cr6+, Hg, Metal HAPs, acid gases PFAS testing and analysis for emerging contaminant requirements Soil and waste characterization including TCLP for hazardous determination Fast turnaround from a national network of accredited laboratories Environmental Consulting Air permitting strategy and compliance for data center construction and operations Title V and minor NSR permitting support Regulatory guidance across federal and state frameworks (NSPS, NESHAP, CAA) EHS compliance as a service and on-site personnel augmentation Risk assessments and mitigation planning Additional Capabilities LDAR (Leak Detection & Repair) for fuel systems and refrigerant management Ambient air monitoring and fenceline monitoring SkyBridge cloud platform for real-time field data and automated reporting Stormwater management and NPDES permitting support Health and safety consulting and training REQUEST INFORMATION

Reflects EPA’s May 2024 final rule (89 FR 38508). Monitoring frequency thresholds, emission limits, and applicability definitions are current as of publication. Who This Guide Is For This guide is written for environmental managers, compliance officers, and terminal operators at bulk gasoline facilities classified as major or area HAP sources. It covers applicable regulations, technical changes, LDAR program structure, Appendix K OGI requirements, and the specific actions facilities should be taking now to meet the May 2027 deadline. This article is based on insights shared during Alliance Technical Group's recent webinar on the EPA's Bulk Gasoline Terminal Rule updates. For a deeper discussion of the requirements, compliance timelines, and implementation considerations, watch the full webinar on demand. The EPA's 2024 final rule is the most significant overhaul of bulk gasoline terminal air regulations in over forty years. New Source Performance Standards Subpart XXa and revised NESHAP Subparts R and 6B tighten loading rack emission limits by as much as 97%, replace monthly AVO inspections with formal LDAR instrument monitoring, and add CEMS, flare monitoring, and electronic reporting obligations that many terminals have never managed before. For existing sources, the compliance deadline is May 8, 2027. The deadlines vary by regulation and source type. Here is the full compliance timeline: Regulation Source Type Compliance Deadline NSPS Subpart XXa New / modified / reconstructed (after June 10, 2022) July 8, 2024 or upon startup NESHAP Subpart R & 6B New / reconstructed sources July 8, 2024 NESHAP Subpart R & 6B Existing sources May 8, 2027 NESHAP R & 6B — certain storage tank controls Existing sources May 8, 2034 The Three Rules Governing Bulk Gasoline Terminals Three federal regulations now govern bulk gasoline terminals. NSPS 40 CFR Part 60, Subpart XXa applies to terminals that commenced construction, modification, or reconstruction after June 10, 2022, and replaces the older Subpart XX for those sources. NESHAP 40 CFR Part 63, Subpart R covers major source gasoline distribution terminals. NESHAP 40 CFR Part 63, Subpart BBBBBB (6B) covers area source facilities including bulk terminals, bulk plants, and pipeline facilities. Subpart XX (40 CFR Part 60) remains in force for sources built or modified between December 17, 1980, and June 10, 2022. Many facilities will operate under both Subpart XX and XXa simultaneously, with different rules for different units within the same fence line. Identifying which subpart governs each affected unit is the necessary first step. What the Rule Actually Changed Loading Rack Emission Limits The amended rules cut allowable loading rack emissions substantially from the prior Subpart XX standard of 35–80 mg/L: NSPS XXa (new sources, thermal oxidation): 1 mg/L TOC NSPS XXa (modified/reconstructed, thermal oxidation): 10 mg/L TOC NSPS XXa (VRU-controlled): 550 ppmv new; 5,500 ppmv modified/reconstructed NESHAP Subpart R: revised from 35 mg/L to 10 mg/L NESHAP Subpart 6B: revised from 80 mg/L to 35 mg/L Terminals with older vapor recovery units or thermal oxidizers should evaluate now whether existing control equipment can meet the new thresholds or whether upgrades are required before compliance deadlines arrive. Storage Tank Requirements Internal floating roof (IFR) tanks must maintain vapor concentrations above the floating roof below 25% of the lower explosive limit (LEL), with annual LEL monitoring now required. External floating roof (EFR) tanks face additional fitting control requirements aligned with NSPS Subpart Kb. Certain storage tank provisions under NESHAP Subparts R and 6B are delayed until May 8, 2034, but that delay applies only to specific tank control provisions. LEL monitoring and IFR vapor space requirements for new sources are not among the delayed items. New Monitoring and Control Equipment Requirements Beyond emission limits, the rule adds: flare monitoring requirements modeled on EPA's refinery rules; continuous temperature monitoring for vapor combustion units; CEMS for VRUs where concentration-based limits (ppmv) are elected instead of mass-based limits; submerged fill requirements for loading racks; and electronic reporting under all three regulations. Some area sources under Subpart 6B may be required to install CEMS for the first time. LDAR: The Biggest Operational Shift for Most Terminals Before these rule changes, LDAR at bulk terminals meant monthly AVO inspections. The amended rules replace that framework entirely. All equipment in gasoline service, including valves, pumps, connectors, pressure relief valves, sampling connections, and open-ended lines, is now subject to formal instrument monitoring. Open-ended lines are no longer permitted and must be capped or plugged. Method 21 or OGI: Choosing Your Approach Terminals can comply using Method 21 or Optical Gas Imaging under Appendix K. Method 21 uses a portable hydrocarbon detector with surveyor contact at each component; a reading at or above 10,000 ppmv is a leak. It builds on a component inventory, making it a natural fit where that inventory already exists or state permits already require Method 21. OGI under Appendix K uses an infrared camera to survey equipment areas without component-by-component contact, six to twenty-two times faster than Method 21, and does not require a detailed component inventory, only an equipment list and route map. OGI does require a structured compliance program under Appendix K (see section below). Alliance Technical Group provides both Method 21 and Appendix K OGI services with nationwide scheduling capacity. Repair Requirements First repair attempt: within 5 days of detection. Final repair: within 15 days. If a repair cannot be completed within 15 days, the component must be tagged, the delay documented, an expected repair date established, and management sign-off obtained and recorded. LDAR reports, which are structured differently from standard semiannual air compliance reports, must break out total leaks by detection date, monitoring method, and component type, and flag any instance where a 5-day repair attempt was not made. If You Choose OGI: What Appendix K Requires Appendix K to 40 CFR Part 60 is a structured federal protocol that governs every aspect of OGI survey conduct, documentation, and quality assurance, from technician qualification and site-specific monitoring plans to daily weather verification and video recordkeeping. Terminals that elect OGI, or that hire vendors to conduct OGI surveys on their behalf, need a site-specific program that satisfies all of the following. Technician Qualification Initial training requires classroom instruction on the regulation and camera theory, three hours of field observation, twelve hours of side-by-side work with a qualified senior operator, fifteen hours of supervised surveying, and a final skills assessment. Semiannual performance audits and biannual refresher training are ongoing requirements. A senior OGI operator under Appendix K must have more than 1,400 documented lifetime survey hours and at least 40 survey hours in the preceding 12 months. Site-Specific Monitoring Plan Each facility requires a written monitoring plan covering interference conditions and stop/pause criteria (steam, fog, solar glare, heat reflections); safety protocols; required instrumentation (anemometer, temperature gauge, distance meter); camera calibration and maintenance; and defined operating envelopes for the specific camera model(s) in use, accounting for all configurations — lens type, sensitivity mode, handheld vs. tripod, external display use. Survey Execution and Daily QA Each survey day begins with a verification check — or a full field check if operating outside the camera’s defined envelope. Two viewing angles per scene are required, with dwell time minimums: at least 10 seconds per angle for scenes of 10 or fewer components, and at least 2 seconds per component for larger groupings. Weather conditions (ΔT and wind speed) must be recorded at the start and end of each survey and rechecked every two hours for surveys exceeding four hours. A five-minute QA verification video must be recorded each survey day. Confirmed leaks and completed repairs both require video documentation. Storage Tank Emission Testing: A Methodology Problem Most Operators Don’t Know They Have Regulators are increasingly requesting emissions testing directly from storage tank vents. What many terminal operators don’t realize is that standard single-point testing can significantly overstate a tank’s actual emission rate — and agreeing to that test plan without discussion can produce a number that follows the facility for years. A storage tank and its headspace form a closed equilibrium system. When a test draws flow from the vent, it disturbs that equilibrium and induces additional evaporation. The more flow pulled during sampling, the higher the measured emission rate — not because the tank emits more under normal operation, but because the act of testing is generating the emissions. The defensible approach is a regression-based methodology: test at three distinct exhaust rates each separated by at least 500 scfm, measure VOC concentration at each rate, plot emission rate against flow rate, and extrapolate back to zero imposed flow. The intercept represents the tank’s natural breathing rate without any test-induced draw. Alliance Technical Group has developed and applied this regression-based methodology in regulatory settings where the resulting emission rate was later scrutinized by state agencies — and the approach has held up under that review. Five Actions Bulk Gasoline Terminals Should Take Now With the May 2027 compliance deadline approaching, facilities should be planning today. Permit modifications, equipment procurement, vendor availability, and initial monitoring requirements can take much longer than expected. 1. Determine Applicability Across Your Facility: Identify which tanks, loading racks, and equipment are subject to Subpart XX, XXa, R, and/or Method 6B requirements. Then create a compliance roadmap that aligns with the 2024, 2027, and 2034 deadlines. 2. Make Key Compliance Strategy Decisions Early: Decide whether your LDAR program will use Method 21 or Optical Gas Imaging (OGI) under Appendix K. Also determine whether you'll comply with emissions limits using a mass-based approach or a concentration-based approach that requires CEMS. These decisions impact equipment, staffing, training, testing, and reporting requirements. 3. Evaluate Air Permit Impacts: Review existing permits to identify needed updates. Many facilities will need permit modifications to address new control requirements, LDAR provisions, CEMS monitoring, averaging periods, and revised emission limits. Start discussions early, as agency review timelines can be lengthy. 4. Secure Vendors and Compliance Resources: Demand for OGI specialists, Method 21 technicians, CEMS providers, and stack testing services is expected to increase as 2027 approaches. Engage implementation partners now to avoid scheduling constraints later. 5. Develop a Compliance Plan and Assign Ownership: Establish a detailed project schedule that works backward from the compliance deadline. Assign internal owners for permitting, LDAR, monitoring, testing, reporting, and recordkeeping activities to keep implementation on track. How Alliance Technical Group Can Help Alliance Technical Group is one of the few environmental services firms that provides stack testing, LDAR, CEMS, and permitting support under one roof — which matters when a compliance program spans all four. Our terminals team includes Appendix K-certified OGI operators with nationwide coverage, in-house spectroscopists for Method 320 FTIR work, and laboratory infrastructure in St. Louis and Minneapolis for developing site-specific response factors on ethanol-blended streams. Alliance's offerings for bulk gasoline terminals include: LDAR programs using Method 21 or OGI (Appendix K) — certified operators, nationwide scheduling Stack testing: Method 25A and Method 320 (FTIR) with in-house response factor development for ethanol and oxygenated blends CEMS installation, performance specification testing, and ongoing RATA services Storage tank emission testing using regression-based methodology Applicability determinations, permit revision support, and multi-year compliance planning Regulatory References 40 CFR Part 60, Subpart XX — Standards of Performance for Bulk Gasoline Terminals (sources through June 10, 2022) 40 CFR Part 60, Subpart XXa — Standards of Performance for Bulk Gasoline Terminals (sources after June 10, 2022) 40 CFR Part 63, Subpart R — NESHAP for Gasoline Distribution Facilities (Major Sources) 40 CFR Part 63, Subpart BBBBBB (6B) — NESHAP for Gasoline Distribution Area Sources Federal Register, May 8, 2024 — Final Rule: 89 FR 38508 40 CFR Part 60, Appendix A-7, Method 25A and Method 320 40 CFR Part 60, Appendix K — Optical Gas Imaging Monitoring Protocol Frequently Asked Questions Specific applicability and compliance questions terminal operators commonly ask about NSPS Subpart XXa and the revised NESHAP Subparts R and 6B.

Decatur, AL — May 18, 2026 – Alliance Technical Group, the leading provider of environmental testing, monitoring, and compliance services, announced today the acquisition of the Leak Detection and Repair (LDAR) assets from Atlas Technical Consultants LLC., a nationally recognized leader in infrastructure and environmental services. The acquisition brings a focused team of industrial air quality and emissions compliance specialists into the Alliance family, deepening Alliance's capabilities in LDAR program management across the Gulf Coast and beyond. Atlas' LDAR group has built a strong, client-focused practice over more than two decades, serving major industrial operators primarily across the Gulf Coast, with additional presence spanning from Wyoming to Delaware. The group's expertise covers LDAR program development, auditing, and implementation; emissions reporting and data management; and onsite field services. Their technicians bring deep familiarity with complex industrial regulatory environments and a track record of delivering practical compliance solutions for clients in oil and gas, refining and petrochemical sectors. "The LDAR professionals joining us from Atlas bring exactly the kind of specialized, field-proven expertise that strengthens Alliance's position as a comprehensive environmental services provider," said Chris LeMay, CEO of Alliance Technical Group. "Their deep relationships with major industrial operators, combined with their technical depth across LDAR program management and air quality compliance, make this a compelling addition to the Alliance team. We're excited to welcome their team and look forward to growing together." "Joining Alliance opens a meaningful new chapter for our team and the clients we serve," said Nick James, Director of Operations. "Our work has always been built on technical precision and long-term client relationships in some of the most demanding industrial environments in the country. Alliance shares that commitment, and their platform gives us the ability to grow those relationships and reach new clients in ways we couldn't before." This acquisition reflects Alliance's continued strategy to grow its environmental testing and compliance capabilities while strengthening its presence across key industrial markets throughout North America. The Environmental Financial Consulting Group, LLC (“EFCG”), through its registered broker-dealer affiliate EFCG Transaction Services LLC, served as advisor to Alliance Technical Group on the transaction.

Decatur, AL and Wellington, OH — 4/27/26 Alliance Technical Group, a leading provider of environmental testing, monitoring, and compliance services, announced today the acquisition of Grace Consulting, Inc. (GCI), a nationally recognized air sampling and stack testing firm specializing in air emissions testing and environmental compliance services. Founded in 2000 and operating out of offices in Ohio, Indiana, North Carolina, and Texas, GCI has established itself as one of the largest privately held stack testing companies in the nation. Over the past two decades, GCI has served clients across a broad range of industries, providing comprehensive air sampling services backed by the latest sampling techniques and technical advancements. "Grace Consulting has built a remarkable reputation as a premier stack testing firm in the country, with deep technical expertise and a strong commitment to client service," said Chris LeMay, CEO of Alliance Technical Group. "Their capabilities in air emissions testing, combined with their extensive equipment inventory and highly credentialed field teams, make them an outstanding addition to the Alliance family and significantly strengthen our national footprint." With the addition of GCI, Alliance further deepens its technical capabilities in source emissions testing while broadening its geographic reach across the continental United States. GCI's experienced field teams will integrate with Alliance's expansive environmental services network, providing clients with greater resources, enhanced technical depth, and expanded coverage. "Becoming part of Alliance Technical Group marks an exciting new chapter for GCI and the team we've built since 2000," said Scott Teague, President of Grace Consulting, Inc. "We share a commitment to delivering high-quality, reliable environmental testing services, and joining Alliance gives us the platform to offer our clients even greater resources and capabilities as we continue to grow together." This acquisition reflects Alliance's ongoing strategy to strengthen its environmental testing and compliance services and extend its reach across North America. The Exit Group supported Alliance Technical Group in sourcing and executing the transaction.