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<h2>Understanding Subpart W GHG Emissions</h2><p>Greenhouse gas (GHG) emissions have long been a critical concern in global discussions about climate change. Subpart W of the Greenhouse Gas Reporting Program (GHGRP) focuses specifically on emissions from the petroleum and natural gas systems, sectors that are significant contributors to overall GHG levels. As the world continues to grapple with climate change, tracking these emissions has never been more crucial.</p><figure id="figure-1a1udmapxmgtpogm4"><img id="1a1udmapxmgtpogm4" src="https://cdn.durable.co/getty/11UrWp5I4Bi2YIA3MJVaRw1jGhfQyW0pO9khAU9qvUyL3RnrETfSBdoFZhZgOZBq.jpeg" alt="oil refinery emissions" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/11UrWp5I4Bi2YIA3MJVaRw1jGhfQyW0pO9khAU9qvUyL3RnrETfSBdoFZhZgOZBq.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h2>EPA Proposed Changes</h2><p>In eptember 2025, the U.S. Environmental Protection Agency (EPA) announced a major proposal to scale back its Greenhouse Gas Reporting Program (GHGRP),&nbsp; a move that could pause or even eliminate GHG reporting for many industries. While this proposal is still under review, it has already created uncertainty for operators and compliance teams across the oil and gas sector.</p><p>But one thing remains clear: tracking greenhouse gas (GHG) emissions,&nbsp; especially under Subpart W, is more important than ever.</p><p>Even if federal reporting obligations are delayed or suspended, emissions data remains critical for state programs, investors, and international markets that continue to demand transparency and accountability.</p><p>&nbsp;<strong>What’s Changing: EPA’s Proposed Revisions to the GHGRP</strong><br><strong>Under the EPA’s proposed rule:</strong></p><p>Reporting obligations for 46 of 47 GHGRP source categories would end after the 2024 reporting year.<br>Subpart W (Petroleum and Natural Gas Systems) reporting would be suspended from 2025 through 2033, with obligations resuming in 2034.<br>The Natural Gas Distribution segment would be permanently removed from GHGRP reporting.<br>These changes are linked to updates in the Clean Air Act (CAA), which delayed implementation of the Methane Waste Emissions Charge (WEC) until 2034.<br>Although the proposal aims to reduce administrative burden, the EPA acknowledged that companies may voluntarily continue collecting and maintaining emissions data — a prudent move for any operator preparing for future regulations and stakeholder scrutiny.</p><h3>Why Companies Should Continue Tracking Emissions</h3><p>The potential pause in federal reporting does not eliminate the broader need for accurate, verifiable GHG data. Here are key reasons why continued tracking under Subpart W methodologies remains essential:</p><p>1. State and Regional Programs Still Depend on EPA Methodologies<br>Many state-level GHG programs — including those in California, Colorado, Washington, and New York — use the EPA’s Subpart W calculation methods as their technical foundation.<br>Companies that stop tracking emissions could struggle to meet state or local reporting requirements, losing consistency and compliance readiness.</p><p>2. Investor and Financial Market Expectations Are Not Retreating<br>Despite the proposed rollback, ESG-focused investors, lenders, and insurers continue to assess companies based on GHG performance.</p><p>Investors rely on verified emissions data to evaluate climate-related risks.<br>Creditors and insurers increasingly factor emissions intensity into financial terms.<br>ESG rating agencies continue to rank and compare companies on carbon transparency.<br>Companies that fail to track and disclose credible data risk being penalized in capital markets and losing the trust of investors and customers.</p><p>3. Global Trade and Carbon Border Policies Require Transparency<br>International policies such as the EU Carbon Border Adjustment Mechanism (CBAM) require exporters to demonstrate verified emissions data.<br>For companies engaged in global energy, LNG, or chemical trade, accurate emissions tracking under Subpart W methodologies remains a strategic necessity for maintaining market access and competitiveness.</p><p>4. Operational Insight and Risk Management<br>Beyond compliance, robust emissions data enables better decision-making:</p><p>- Detecting leaks and inefficiencies in real time<br>- Establishing reliable baselines for emission reduction targets<br>- Supporting internal sustainability initiatives and performance tracking<br>- Maintaining credibility with communities, partners, and regulators<br>- Strong data governance today ensures auditability and readiness for the next&nbsp; &nbsp; &nbsp;phase of climate regulation.</p><figure id="figure-37o5xb2w2mgtpolx9"><img id="37o5xb2w2mgtpolx9" src="https://cdn.durable.co/getty/18Ht5axPGteBFrirX12nb6Y2kov1F8Rtxd1KLpp4TG5p6OXOQsZNSNY0kgFqaeEV.jpeg" alt="environmental regulation" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/18Ht5axPGteBFrirX12nb6Y2kov1F8Rtxd1KLpp4TG5p6OXOQsZNSNY0kgFqaeEV.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h2>Lessons from the 2024 Subpart W Updates</h2><p>Before the 2025 proposal, the EPA had already finalized major updates to Subpart W to improve accuracy and transparency. These included:</p><p>Adding new source categories (e.g., produced water tanks, crankcase vents, large release events)<br>Requiring more direct measurement where feasible<br>Aligning data requirements with other EPA programs such as NSPS OOOOb<br>These updates represent best practices for emissions tracking — and many organizations are continuing to use them as their standard, even if federal reporting pauses.</p><h3>The Path Forward: Stay Ready, Stay Accountable</h3><p>Companies that continue tracking emissions will be better positioned for the future, both operationally and reputationally. Best practices include:</p><p>Maintaining Subpart W-based monitoring and data management systems even if reporting pauses.<br>Implementing third-party verification and audit trails to preserve data credibility.<br>Monitoring state, regional, and investor disclosure requirements to stay ahead of emerging rules.<br>Participating in the EPA’s public comment process to ensure industry perspectives are represented.<br>The EPA’s proposal may shift compliance timelines, but it doesn’t change the direction of the market. Transparency, consistency, and data-driven accountability remain key to competitiveness in the evolving energy landscape.</p><figure id="figure-b2dqe4g53bmgtpori3"><img id="b2dqe4g53bmgtpori3" src="https://cdn.durable.co/getty/1fyde8rF0ZLgQI69xavPSRoky03S3X9NklXxO1UKV2cukztEqHEqdZv8TxHHm7F3.jpeg" alt="technology emissions" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/1fyde8rF0ZLgQI69xavPSRoky03S3X9NklXxO1UKV2cukztEqHEqdZv8TxHHm7F3.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h2>Environmental and Social Impact</h2><p>Beyond compliance and operational benefits, tracking GHG emissions has broader environmental and social implications. Accurate emissions reporting can help mitigate the impact of climate change by reducing harmful pollutants. It contributes to global efforts to limit temperature rise and protect natural ecosystems.</p><h3>Building Trust with Stakeholders</h3><p>Today's consumers and investors are increasingly environmentally conscious. Companies that actively track and reduce their emissions can enhance their brand image and build trust with stakeholders. Transparency in emissions data demonstrates a commitment to sustainability, which can translate into competitive advantages.</p><figure id="figure-bobtfvsu3vmgtpox1p"><img id="bobtfvsu3vmgtpox1p" src="https://cdn.durable.co/getty/25XDnCZV2iyF8ivrmpY1yi74hyk9mwxJgEFIfoaRo4YZBRV9HQ4PtXBab5yZPZJ8.jpeg" alt="sustainable business" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/25XDnCZV2iyF8ivrmpY1yi74hyk9mwxJgEFIfoaRo4YZBRV9HQ4PtXBab5yZPZJ8.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h2>Conclusion: The Path Forward</h2><p>While the proposed rollback of the GHGRP might seem to ease regulatory pressure, it does not diminish the importance of GHG emissions tracking. From investor confidence to state-level compliance and international trade, the demand for accurate emissions data is stronger than ever.</p><p>Companies that continue to measure, verify, and manage their emissions data today will gain a long-term advantage — staying compliant, resilient, and trusted in an increasingly transparent global market.</p><p><em>About DREEM Solutions</em><br><em>DREEM Solutions provides cloud-based environmental compliance and emissions management software designed to simplify GHG tracking, streamline data collection, and ensure readiness for evolving regulatory and ESG reporting requirements.</em></p>

The Importance of Tracking Subpart W GHG Emissions Amid EPA’s Proposed Changes to the GHGRP

<h2>Understanding Environmental Compliance</h2><p>In today's rapidly evolving regulatory landscape, maintaining environmental compliance is more crucial than ever for businesses. Meeting these regulations not only helps in protecting the planet but also ensures that your company avoids hefty fines and maintains a positive reputation. However, the complexity of compliance requirements can be overwhelming. This is where DREEM Taskit comes into play.</p><figure id="figure-30jxgn8agmh2hgeh7"><img id="30jxgn8agmh2hgeh7" src="https://cdn.durable.co/getty/3bgP3W1TlRfDF1CRKygktMtuHC90470xbY0j9Clby30OdlerQzpJdqiK7LeElERr.jpeg" alt="environmental compliance" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/3bgP3W1TlRfDF1CRKygktMtuHC90470xbY0j9Clby30OdlerQzpJdqiK7LeElERr.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>Introducing DREEM Taskit</h3><p>DREEM Taskit is an innovative solution designed to streamline your environmental compliance processes. By integrating advanced technology with user-friendly features, it simplifies compliance management, allowing businesses to focus on what they do best. With DREEM Taskit, staying compliant becomes a seamless part of your operations.</p><h3>Key Features of DREEM Taskit</h3><p>DREEM Taskit offers a comprehensive suite of features tailored to meet the diverse needs of businesses. Here are some of the standout features:</p><ul><li><strong>Automated Monitoring:</strong> Keep track of compliance metrics in real-time with automated monitoring systems.</li><li><strong>Data Analytics:</strong> Leverage powerful analytics to gain insights into your compliance status and identify areas for improvement.</li><li><strong>Customizable Alerts:</strong> Stay informed with alerts that can be customized to your specific needs.</li></ul><figure id="figure-lk677bqtvqmh2hgjnr"><img id="lk677bqtvqmh2hgjnr" src="https://cdn.durable.co/getty/6xw4KgCMtW4hz0ncgkl2fFIFWQtEY7KCoKjMfMGbLzc7owHWg97mEHYPCHgT9odE.jpeg" alt="technology dashboard" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/6xw4KgCMtW4hz0ncgkl2fFIFWQtEY7KCoKjMfMGbLzc7owHWg97mEHYPCHgT9odE.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>Benefits of Using DREEM Taskit</h3><p>Implementing DREEM Taskit in your business operations can provide numerous benefits. Firstly, it reduces the administrative burden by automating many tasks associated with compliance. This allows your team to focus on more strategic initiatives. Moreover, DREEM Taskit enhances accuracy and reduces human error, ensuring that your compliance data is reliable and up-to-date.</p><h3>Enhancing Sustainability Efforts</h3><p>By using DREEM Taskit, companies can also bolster their sustainability efforts. The platform not only helps in meeting regulatory requirements but also provides insights into how businesses can reduce their environmental impact. This dual approach supports a company's sustainability goals while maintaining compliance.</p><figure id="figure-mi1c1jmfqmh2hgolv"><img id="mi1c1jmfqmh2hgolv" src="https://cdn.durable.co/getty/1fARoPvE3V3xxyX39bUGJSKAzOoXI56Y81aFdQQ63yO4egHjWjuaGJcfX70epM1r.jpeg" alt="sustainability efforts" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/1fARoPvE3V3xxyX39bUGJSKAzOoXI56Y81aFdQQ63yO4egHjWjuaGJcfX70epM1r.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>How to Get Started with DREEM Taskit</h3><p>Adopting DREEM Taskit is a straightforward process. Start by assessing your current compliance needs and identifying areas where the platform can add value. Once implemented, you'll notice immediate improvements in how compliance tasks are managed and reported. The platform's intuitive interface ensures that your team can quickly adapt and start benefiting from its features.</p><h3>Conclusion</h3><p>Incorporating DREEM Taskit into your business strategy is a smart move for any company looking to streamline its environmental compliance. With its robust features and user-friendly design, it simplifies the complexities of compliance management and supports your sustainability initiatives. Explore DREEM Taskit today and take the first step towards more efficient and effective compliance management.</p>

Streamline Your Environmental Compliance with DREEM Taskit

Damaged Storage Tanks Chemical EPA Superfund Site

<h3>EPA Tanks 4.09d: Shortcomings and Modern Alternatives for Accurate Storage Tank Emission Calculations<br></h3><p>For years, EPA Tanks 4.09d (commonly referred to as Tanks 4) was the standard desktop software used to estimate volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions from storage tanks. It was widely adopted by facilities and consultants to help meet EPA and state air quality compliance requirements.</p><p>The program could estimate emissions for multiple tank configurations, including:</p><p>- Vertical and horizontal fixed-roof tanks<br>- Internal and external floating-roof tanks<br>- Domed external floating-roof tanks<br>- Underground tanks<br></p><p>However, the EPA has officially discontinued support for Tanks 4.09d, acknowledging that it no longer aligns with current regulatory methodologies or data accuracy needs. This has created a growing need for modern, accurate, and user-friendly alternatives to ensure ongoing compliance and reliable emissions estimation.</p><figure id="figure-nzl9t6i8njmh2hygvm"><img id="nzl9t6i8njmh2hygvm" src="https://cdn.durable.co/getty/2tPYhlIdhzOOJjURjWVD9bAvvVLpPfAwq740wvl1l78WvOr8gFiuj5WYlHNoH9C7.jpeg" alt="environmental regulations" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/2tPYhlIdhzOOJjURjWVD9bAvvVLpPfAwq740wvl1l78WvOr8gFiuj5WYlHNoH9C7.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>The Limitations of EPA Tanks 4.09d</h3><p>Although it served the industry for decades, Tanks 4.09d contained several critical shortcomings that often led to inaccurate VOC and HAP emissions results. Below are some of the key issues that users and regulators have long recognized.</p><p>1. Oversimplified Bulk Temperature Calculations<br>Tanks 4.09d used the average annual ambient temperature of a tank’s location to estimate the liquid bulk temperature for non-heated tanks. This method ignored monthly temperature variations, leading to over- or under-estimations of emissions — particularly when calculating monthly totals.</p><p>2. Temperature Limitations for Heated Tanks<br>The software capped vapor pressure interpolation at 100°F, even though many heated tanks operate above this temperature. As a result, vapor pressure and emission estimates were understated for tanks running hotter than 100°F.</p><p>3. Unrealistic Full-Insulation Assumptions<br>Tanks 4.09d assumed that all heated tanks were fully insulated, which set standing losses to zero by default. In reality, partial insulation or uninsulated roofs lead to measurable standing losses — which the program failed to capture.</p><p>4. Missing Parameters for Floating Roof Tanks<br>The tool lacked an option to indicate whether the liquid in a floating roof tank was heated or not. This omission caused misleading emission results when calculating losses for heated floating tanks.</p><p>5. No Calculations for Roof Landing or Tank Cleaning<br>Tanks 4.09d did not include features to calculate emissions from roof landings or tank cleanings, which can contribute significantly to total annual VOC and HAP emissions.</p><p>In short, while the software provided a useful foundation, it is now considered technically outdated, inaccurate, and incomplete for today’s compliance and reporting standards.</p><figure id="figure-6iqtbv9bgsmh2hymfy"><img id="6iqtbv9bgsmh2hymfy" src="https://cdn.durable.co/getty/9P2WRdyoDhpL8XTnPR4Diif5CWBwJnN1IDVUr35zBkj35CVdtUAwZimUa41UKwQz.jpeg" alt="industrial tanks" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/9P2WRdyoDhpL8XTnPR4Diif5CWBwJnN1IDVUr35zBkj35CVdtUAwZimUa41UKwQz.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>A Modern Alternative: DREEM Solutions</h3><p>Recognizing these industry challenges, DREEM Solutions has developed a powerful and accurate alternative to EPA Tanks 4.09d. Our cloud-based storage tank emissions software is built to provide high-precision VOC and HAP calculations using EPA AP-42 Chapter 7 equations — with modern functionality and automation that today’s facilities need.</p><p>Why Choose DREEM Solutions<br>✅ Accurate monthly and annual emissions based on AP-42 Chapter 7<br>✅ Ability to calculate partial-month emissions (for mid-month stock changes)<br>✅ 12-month rolling totals and averages for throughput and emissions<br>✅ Process multiple tanks at once — no need to calculate individually<br>✅ Customizable reports that align with EPA or state agency formats<br>✅ Integrated business intelligence module for source-by-source comparison<br>✅ Built-in compliance checks against permit limits<br>✅ Group tanks by permit category or physical location for easier management<br></p><p>With DREEM, you can move away from spreadsheets and outdated desktop tools — and instead use a modern, web-based platform that provides real-time visibility, automated reporting, and compliance confidence.</p><figure id="figure-xuig0nesokmh2hys5a"><img id="xuig0nesokmh2hys5a" src="https://cdn.durable.co/getty/108jj1QQZXFsyf4ulJlDDOWQNbJP4pJYTWjftyj3qghjRkUNvJBRKyyThj7GCbRC.jpeg" alt="smart technology" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/108jj1QQZXFsyf4ulJlDDOWQNbJP4pJYTWjftyj3qghjRkUNvJBRKyyThj7GCbRC.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><h3>Beyond Tanks: A Complete Environmental Data Management Solution</h3><p>DREEM Solutions goes beyond storage tanks. Our platform provides a centralized system to manage all of your environmental and sustainability data — including air emissions, greenhouse gases, water, and waste.<br>With automated calculations, record-keeping, and audit-ready reports, DREEM helps your organization maintain compliance, reduce risk, and save time across all environmental reporting areas.</p><h3>Request a Demo</h3><p>If your facility or consulting team is still relying on EPA Tanks 4.09d, now is the time to upgrade.<br>Experience a smarter, faster, and more reliable way to manage storage tank emissions with DREEM Solutions.</p><p>Contact us today to request a demo and see how our platform can replace Tanks 4.09d with a more accurate, flexible, and compliant solution for your emission calculations.</p><figure id="figure-w22lb7ihkmh2hyzem"><img id="w22lb7ihkmh2hyzem" src="https://cdn.durable.co/getty/1aGS1dsKUB50OUviGWvxubZqdM7ogX8amMxuBUzcYzgwRZb269Sukrn4mnbQIM3h.jpeg" alt="industry collaboration" class="object-cover bg-gray-100 rounded-2xl md:rounded-3xl lg:rounded-4xl" style="aspect-ratio: 16/9;" data-mce-src="https://cdn.durable.co/getty/1aGS1dsKUB50OUviGWvxubZqdM7ogX8amMxuBUzcYzgwRZb269Sukrn4mnbQIM3h.jpeg" data-mce-style="aspect-ratio: 16/9;"></figure><p><br></p>

EPA Tanks 4.09d: Challenges and Modern Alternatives

DREEM Solutions

DREEM Solutions provides a cloud‑based SaaS platform that enables companies in oil & gas, chemicals, manufacturing, and power generation to manage environmental compliance and emissions. The software lets users track regulatory tasks, handle permits, and calculate Scope 1, 2, and 3 emissions as well as other pollutants, helping ensure adherence to federal and state requirements. Operating in the United States, DREEM Solutions currently generates monthly revenue in the $5,001‑$15,000 range.

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The Importance of Tracking Subpart W GHG Emissions Amid E...

Streamline Your Environmental Compliance with DREEM Taskit

EPA Tanks 4.09d: Challenges and Modern Alternatives