Clean Ground for Your Next Build

Secure Contaminated Soil Removal in Yakima Valley and throughout Central & Eastern Washington

You can't build a solid commercial future on contaminated ground. Whether you're expanding, redeveloping a site, or preparing an industrial lot in Yakima, impacted soils from spills, fill, solvent releases, or chemicals can stall permits, delay schedules, and inflate costs. The smell of diesel in excavated soil or the sight of stained clay during grading are clear signs that remediation is needed before you move forward. Tri-Valley Construction specializes in commercial contaminated-soil excavation, segregation, sampling, transport, and compliant disposal across Yakima and Central and Eastern Washington.


We're experienced with petroleum-impacted soils, legacy industrial contamination, and agricultural chemical releases common in Yakima's growing development zones. Our team uses precision excavation equipment, load tracking systems, and coordinated site restoration to meet regulatory standards while keeping your project on schedule. We're familiar with local soil profiles, groundwater sensitivities, and proximity to agricultural drainage corridors, so we tailor every remediation plan to the specific conditions of your site. We work alongside environmental engineers for sampling and reporting, ensuring full documentation for your permits and future transactions.


Plan your contaminated soil remediation in Yakima and the surrounding areas and clear the way for compliant, on-time construction.

Why Choose Professional Contaminated Soil Remediation in Yakima?

The process starts with coordinated work alongside environmental engineers for sampling and reporting, ensuring every decision is data-driven and defensible. Once contamination is confirmed, precision excavation removes impacted material while protecting surrounding soil and structures.


Load tracking ensures that every cubic yard is documented and transported to approved facilities, and site restoration brings your property back to grade and ready for the next phase. Tri-Valley Construction is familiar with the Yakima Valley's soil profiles, groundwater sensitivities, and proximity to agricultural drainage corridors, so you benefit from local knowledge that prevents surprises.


The team encourages early evaluation during commercial planning and civil-site design to identify risks before they become costly problems.


Call (509) 452-4098 today for professional Contaminated Soil Remediation in Yakima and throughout Central and Eastern Washington.

What's Included in This Service?

Every remediation project starts with soil characterization, then moves through excavation, segregation, transport, and disposal, all documented to meet state and federal requirements.

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What types of contamination do you handle most often?

We regularly remediate petroleum-impacted soils from underground tanks, solvent spills from industrial operations, and legacy agricultural chemical contamination common in Yakima Valley's commercial and processing zones.

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How do you determine how much soil needs to be removed?
We work with environmental consultants who conduct soil sampling and analysis to define the extent of contamination. Excavation limits are based on lab results and regulatory action levels.
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Where does the contaminated soil go?
It's transported to licensed disposal facilities approved for the specific contaminant type. We track every load and provide manifests for your compliance records.
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Can you backfill and grade the site after excavation?

Yes. We import clean fill, compact to engineering specifications, and restore site grades so your property is ready for the next phase of development in Yakima Valley.

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How long does a typical remediation project take?
Most commercial soil remediation projects are completed within one to three weeks, depending on contamination volume and site access. We coordinate closely with your schedule to minimize downtime.

Early evaluation during commercial planning and civil-site design helps you budget accurately and avoid surprises during excavation. Whether you're preparing a redevelopment property near I-82 or clearing a historic industrial site, starting with clean soil gives you a foundation for long-term success. Reach out today to arrange your contaminated soil assessment and remediation services in Yakima.