Soil & Site Remediation & Restoration
From the first probe hole to the state’s closure letter.
PMI cleans up and restores contaminated ground at oil and gas and industrial sites, from mapping how far the impact runs to filing the closure package with the state.
The record
- 3,000+Projects completed
- 7States worked
- 50+Years in operation
The problems this ends
A release reported, and nobody has scoped yet how far the impact actually runs.
Confirmation samples that come back dirty after the excavator has already left.
Dirt hauled to a landfill that could have been treated on the lease.
A tank battery removed, and the soil underneath still sitting on your books.
A closure file nobody assembled, so the liability never actually transfers.
A landowner asking questions that end up on your legal team’s desk.
Scope of work
What you get
The work covers crude and brine spills, tank battery footprints after the steel comes down, pinhole leaks and staining along pipeline right-of-ways, and hydrocarbon or chemical impacts at compressor stations, gas plants and terminals.Our crews map how far the impact runs, excavate or treat it, confirm the result with an independent lab, put the ground back and file the closure package with the state. Fifty-plus years in the field, primarily Gulf Coast and Southwest, capable anywhere in the country.
Delineation and site assessment
Field test kits and a direct-push probe rig map the impact horizontally and vertically before anyone digs, so the scope is known rather than guessed.
Excavation and removal
Impacted soil comes out to the depth the delineation set, with the work area controlled while the pit is open.
Confirmation sampling
Composite samples from the base and sidewalls go to an independent accredited lab, measured against the state’s closure standard.
Step-out excavation
If a sample fails, crews step out in that zone and resample until the boundary reads clean.
Waste manifesting and disposal
Material that leaves the property moves on certified manifests to permitted facilities, chain of custody documented end to end.
Backfill, regrade and revegetation
Clean tested fill, re-contoured to the original topography and drainage, then seeded to what the landowner or the agency specifies.
Reclamation and closure package
Pads, old sumps, fences and access roads put back, and the logs, work plans, manifests and lab results assembled into the closure file.
The procedure
How the job runs
The sequence below is the one our supervisors and crews work to on this scope. Readings, permits and sign-offs are documented as the job moves through it.
Delineate
Field kits and a probe rig set the area of investigation, top to bottom.
Excavate or treat
Soil comes out, and goes either to a permitted facility or into on-site treatment.
Confirm
Base and sidewall samples go to an independent lab, against the state's standard.
Restore
Clean fill in, contour and drainage back to the original profile, seed down.
Close out
The closure report and its supporting file go to the agency for sign-off.
From the field
128 pits closed on one long-running program
What we did
PMI closed 128 pits on a single long-running program and remediated the NORM-impacted well sites, pit areas and flow lines that went with them. The same crews took out 48 miles of flow line and cleaned, sheared and hauled off the tank batteries as the footprint came down, year-round for more than five years.
The situation
This was a legacy field full of open pits, buried line and idle tank batteries, much of it carrying NORM scale, all of it handled under one program by one contractor.
The result
The pits are closed, the line is out of the ground, the batteries are gone, and the dirt was handled by the same people who pulled the steel, so no part of it waited on a subcontractor's calendar. It remains one of the largest jobs PMI has performed.
Questions we get
Soil & Site Remediation & Restoration FAQs
What kinds of sites and contamination do you remediate?
Oilfield spills first: crude, produced water and brine, condensate and chemical releases, new and historical. Also tank battery footprints after decommissioning, pinhole leaks and valve-station staining along pipeline right-of-ways, and impacts at compressor stations, gas plants and terminals.
How do you know how much dirt has to come out, and what if a sample comes back dirty?
We delineate before we dig: field kits and a probe rig map the impact horizontally and vertically, which sets the area of investigation and the depth. If a confirmation sample fails, crews step out in that zone and dig until the boundary reads clean, then resample.
Can soil be treated on the lease instead of hauled off?
Sometimes, depending on the contaminant, the concentration and where the site sits. Treating hydrocarbons on site removes the transport and disposal cost, usually the largest line on the invoice. Ask early, because it changes the work plan.
Who handles the regulatory paperwork?
We do. We work to the closure standard the state applies, file the spill notification, write the remedial work plan, generate the waste manifests and assemble the closure package for the agency. Reports that need a professional seal are stamped by licensed third-party professional geologists and engineers, and our field crews hold 40-hour HAZWOPER certification.
What does restoration actually include?
Backfill with clean tested soil, regrading so the contour and the drainage match what was there before, and seeding to the landowner’s or the agency’s specification. Gravel pads, old sumps and lease materials go, and fences, gates and access roads are rebuilt.
How long does a remediation project take?
The fieldwork and the agency review run on two different clocks. Excavation, confirmation sampling and restoration are the short part; the state’s administrative review sets the date on the closure letter. We scope both when we quote.
What about the landowner?
We deal with them directly and keep it civil. They get the independent lab reports and a plain restoration plan, and the property gets treated like somebody lives on it. That usually keeps the conversation away from your legal team.
Send us the spill report.
Tell us what was released, where it sits, and who is already asking about it. Our crews scope the delineation with you before anything is dug, and dispatch answers around the clock.
