Montana

From New Source Review to Title V , we navigate Montana Department of Environmental Quality (DEQ) air quality permitting to accelerate approvals, minimize risk, and keep projects compliant across Montana.

We help agencies and project proponents identify the appropriate review level – Categorical Exclusion, Environmental Assessment, or Environmental Impact Statement – based on project scope and potential impacts.

We deliver Montana-specific environmental reporting—preparing and filing DEQ-compliant air, water, and waste submittals (from emissions inventories and stormwater to TRI and GHG)—so your operations meet state and federal deadlines with confidence.

Trinity can assist with preparation, review, and PE certification of Spill Prevention, Control, and Countermeasure (SPCC) Plans for oil storage as well as support for navigating stormwater permitting requirements to ensure compliance and minimize project delays. From SWPPP development to ongoing monitoring, Trinity delivers tailored stormwater compliance solutions that protect your operations and meet state and federal standards.