Environmental Services in Gallatin County, MT

Former agricultural operations are a recognized environmental condition under ASTM E1527-21 when historical use involved pesticide storage, fuel tanks, or chemical application areas. In Gallatin County, where significant acreage was historically irrigated farmland or ranch property, the Phase I review gives particular attention to aerial photograph history, historical Sanborn maps where available, and interviews to document prior land use before a recognized environmental condition determination is made.

Phase I ESAs are primarily document and records review, so winter timing has no meaningful field constraint. Phase II investigation is more weather-dependent: frozen ground can restrict direct-push or drilling equipment access, and snow cover limits surface observation. We schedule Phase II fieldwork around site access conditions and build that timing into project schedules at the outset so downstream closing or permitting dates are not disrupted.

Construction-phase environmental support can include soil screening during grading when suspect material is encountered, documentation of unexpected finds for regulatory reporting, and observation during excavation of areas flagged in a Phase II. This work is coordinated with the project's geotechnical and inspection scope so a single site visit can address multiple needs where schedules allow, reducing contractor downtime.

Field work in Gallatin County is dispatched through the Salt Lake City, UT regional hub, about 343 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Gallatin County projects.

Field sampling and testing in Gallatin County are performed by our ACI- and NICET-certified technicians. Environmental engineering and professional services are delivered with professionals licensed in Montana, coordinated under one proposal.