📢 Federal Wetlands Protections in Flux — State Action on the Rise

In November 2025, the EPA and U.S. Army Corps proposed a revised Waters of the United States (WOTUS) rule that would narrow which wetlands and streams are federally protected under the Clean Water Act, largely excluding waters without a continuous surface connection to larger water bodies. This change follows the Supreme Court’s Sackett v. EPA… Continue reading 📢 Federal Wetlands Protections in Flux — State Action on the Rise

A New Perspective: Drone Surveying 𖥂

Rule Engineering offers drone surveying services to support grading, drainage, SPCC, wetlands, and other environmental projects. Our in-house FAA Part 107–licensed pilot captures high-resolution aerial data to help you visualize and document site conditions, calculate cut-fill elevations, and make smarter decisions—safely and efficiently. Need LiDAR? We can also rent and operate larger drones equipped with… Continue reading A New Perspective: Drone Surveying 𖥂

💨 New Mexico’s Part 50 Ozone Precursor Rule — Are you in Compliance?

If you operate oil & gas or industrial sites in Eddy, Lea, San Juan, Sandoval, Rio Arriba, Chaves, Doña Ana, or Valencia counties, you’re under New Mexico’s Part 50 Ozone Precursor Rule (20.2.50 NMAC). The rule targets VOC and NOₓ emissions. Key requirements include:✅ Calculate and certify their Potential to Emit (PTE)✅Control or capture emissions… Continue reading 💨 New Mexico’s Part 50 Ozone Precursor Rule — Are you in Compliance?

🏞️ Montana’s Repeal of Numeric Nutrient Limits 🏞️

In October 2025, EPA approved MDEQ’s revisions under HB 664; formally repealing numeric nutrient criteria for nitrogen and phosphorus and affirming narrative nutrient standards while maintaining Clean Water Act goals. Instead of fixed numeric limits, narrative standards describe desired conditions — for example, no excessive algae growth, no oxygen depletion, and protection of aquatic life.… Continue reading 🏞️ Montana’s Repeal of Numeric Nutrient Limits 🏞️

🚧 Another Day in the Field 🚧

Our team oversaw the removal of an underground storage tank (UST) at a former gas station site in Colorado. Careful oversight and soil sampling are critical during these projects to ensure safe and proper handling of potential petroleum impacts and compliance with environmental regulations. At Rule Engineering, we bring decades of experience in UST closures,… Continue reading 🚧 Another Day in the Field 🚧

🚧 Fieldwork in Action 🚧

Last fall, Rule Engineering was on-site in Colorado overseeing excavation for a gas station demolition and rebuild. Our team has been supervising ongoing excavations and trenching, and screening and collecting soil samples to assess petroleum impacts from known releases. Environmental due diligence and compliance are at the core of what we do. By carefully sampling… Continue reading 🚧 Fieldwork in Action 🚧

💨 Big News for Colorado’s Air Quality! 💨

The Colorado Air Quality Control Commission adopted health-based benchmarks for five priority air toxics in late 2025 — Benzene, Formaldehyde, Hexavalent Chromium, Ethylene Oxide, and Hydrogen Sulfide. The changes fulfill a requirement from Colorado’s Public Protections from Toxic Air Contaminants Act (HB 22-1244) to establish science-based health standards. These new benchmarks set clear thresholds meant… Continue reading 💨 Big News for Colorado’s Air Quality! 💨

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