Soil Testing & Contamination Cleanup in Salem, OR
TPH-Dx, BTEX, and PAH sampling under DEQ protocol; if a release is confirmed, we expand the excavation, manifest impacted soil, and prepare the cleanup documentation DEQ needs to issue a No Further Action determination.
TPH-Dx, BTEX, and PAH panel · DEQ Risk-Based Concentrations are the pass/fail line · Release reportable within 72 hours of discovery
Soil Testing & Contamination Cleanup: what you need to know
Roughly one in three buried heating oil tanks in older Salem neighborhoods has leaked at some point. Most of those leaks are minor and resolved during the same dig that removes the tank. A smaller percentage become standalone cleanup projects: soil migration into the water table, contamination that has crossed under a foundation, or a release on a tight lot where the excavator cannot chase the plume to clean lines without taking down a fence or part of a garage.
The work is governed by Oregon DEQ's cleanup framework. Soil samples are tested for TPH-Dx (diesel-range hydrocarbons, the bulk of #2 heating oil), BTEX (benzene, toluene, ethylbenzene, xylenes), and PAHs (naphthalene group). Results are compared against DEQ Risk-Based Concentrations, the cleanup levels that vary by exposure pathway and land use. If a sample exceeds the RBC, the property has a reportable release and DEQ's release-tracking system gets a new entry until the cleanup closes.
Closure is the goal. A "No Further Action" letter from DEQ (the document confirming the property meets cleanup levels and no additional work is required) is what restores the property's marketability.
Benefits of Soil Testing & Contamination Cleanup
ORELAP-accredited lab analysis
Samples go to an Oregon-accredited environmental lab. Self-reported field readings are not accepted by DEQ for closure documentation.
Plume delineation, not guesswork
When initial samples fail, we step out a defined sampling grid to find the clean line, rather than over-excavating and inflating disposal costs.
DEQ-approved disposal
Contaminated soil is manifested and trucked to a permitted facility (Coffin Butte Landfill in Benton County or the Wasco County hazardous-soil cell). Manifests stay in the property file.
Cleanup-Report writing
For releases that won't close on a one-day excavation, we prepare the written Cleanup Report (or coordinate with a Licensed Environmental Professional) needed for a DEQ No Further Action determination.
What's covered under Soil Testing & Contamination Cleanup
The work that sits within soil testing & contamination cleanup for our Salem-area crews:
Pre-purchase Phase II site assessment
For buyers who want to know what the soil holds before closing, independent of any work the seller commissioned.
Post-removal closure sampling
Sampling at the time of tank removal to satisfy DEQ closure requirements for clean tanks.
Boundary delineation sampling
When contamination is suspected to have migrated from a neighboring property. Establishes the line and protects the homeowner from joint liability.
Excavation and chase-the-plume cleanup
Active excavation to remove impacted soil to clean lines, manifested disposal, and confirmation sampling at clean limits.
Groundwater impact assessment
When a release reaches the water table. Typically requires monitoring wells and a longer-track cleanup under a DEQ project manager.
No Further Action documentation
Final Cleanup Report writing and submittal to DEQ for the formal closure letter that restores marketability.
Is Soil Testing & Contamination Cleanup the right service for your situation?
Soil testing or cleanup is the next step when:
- Your tank removal turned up dark, oil-stained soil or a hydrocarbon odor at excavation. DEQ requires sampling regardless of visual appearance, but staining means budget for cleanup, not just sampling.
- A buyer's due-diligence inspector pulled hand-auger samples that came back above RBCs, and you need a contractor who can scope the actual extent rather than rely on the buyer's screening data.
- A neighbor's cleanup turned up contamination near your property line and you want a defensive boundary investigation on file.
- You inherited a property with a long-abandoned tank and want to know what is in the ground before listing.
- A previous cleanup closed at a higher RBC threshold (commercial use) and a residential conversion now requires a re-evaluation.
How the process works
Initial sampling plan
We design the sampling grid based on tank location, suspected release point, and adjacent receptors (drinking-water wells, basements, storm drains).
Field collection
Hand-auger or excavator-pulled samples following DEQ protocols: minimum two from beneath the tank cradle, plus delineation samples on sidewalls.
Lab turnaround
Samples shipped same-day to an ORELAP-accredited lab. Standard turnaround is 5–7 business days; rush turnaround is available for transactions on a clock.
Cleanup or closure
If results pass RBCs, we file the closeout. If a release is confirmed, we report to DEQ within 72 hours, scope the excavation, and pursue closure under DEQ's simplified cleanup track.
What soil testing & contamination cleanup costs in Salem
Soil testing and cleanup is the most variable line on a Salem oil-tank file. Sampling is fixed-price; active cleanup scales with the volume of contaminated soil and the lab work to confirm clean lines. Ranges below cover the common Salem-metro scenarios. Anything that reaches groundwater is scoped separately under DEQ project-manager track.
| Scenario | Salem range | What is included |
|---|---|---|
| Sampling-only at tank removal | $450 to $750 | Two cradle samples plus sidewall samples if staining is observed. ORELAP TPH-Dx + BTEX + PAH panel. Standard 5- to 7-day lab turnaround. |
| Pre-purchase Phase II investigation | $900 to $1,800 | Sampling grid scoped to suspected release point and receptors. Independent of any work the seller commissioned. |
| Boundary delineation (neighbor migration) | $1,200 to $2,500 | Step-out grid to locate the clean line at the property boundary. Establishes the line and protects against joint liability. |
| Active excavation cleanup, contained release | $3,500 to $9,000 | Chase-the-plume excavation to clean lines, manifested disposal at a permitted facility, confirmation sampling. Typical for releases caught at tank removal. |
| Extended cleanup with multiple sample rounds | $9,000 to $25,000+ | Releases that extended beyond the initial dig footprint or into deeper soil. Final Cleanup Report writing for a DEQ No Further Action determination. |
Not included: groundwater monitoring well installation, long-track LEP-supervised cleanups for confirmed groundwater impact, and litigation-support sampling. Rush lab turnaround available on transaction timelines for a per-sample expedite fee.
Areas we cover
Our crews handle soil testing & contamination cleanup across Salem and the surrounding Marion and Polk County area.