Underground Oil Tank Removal
OAR 340-177 governs every Lane County HOT job · 72-hour Notice of Intent filed before excavation · Cradle samples to ORELAP within 24 hours of pull
Excavate, decommission, and document buried heating oil tanks across Eugene-Springfield under the Oregon DEQ HOT program. Closes with an ORELAP-tested soil sample panel and a Decommissioning Report filed at the Eugene DEQ office.
Quote this service
Tank size, depth, access, contamination risk. Site survey is free.
What this service covers
Heating oil was the default residential fuel across Eugene from the 1920s through the early 1970s. The houses east of Pearl Street that line the Whiteaker, the Friendly neighborhood west of the U of O campus, and the College Hill craftsmans south of 18th: almost every home built before 1972 in those areas carried a buried 500- or 1,000-gallon steel tank in the front yard, the side yard, or under what is now a driveway. The tanks are still there in roughly half of those properties, regardless of whether the home has been on oil, gas, or an electric heat pump for the past forty years.
Decommissioning is not optional once the tank goes out of service or the property changes hands. Oregon DEQ's Heating Oil Tank program (codified at OAR 340-177) requires a 72-hour Notice of Intent before excavation, vapor-free cleaning to NFPA 326 standards before any cutting, prescribed soil sampling beneath the cradle, and a Decommissioning Report submitted to the DEQ Western Region office at 165 East 7th Avenue within 60 days of fieldwork. A tank that comes out without that paperwork stays open in the property file, meaning the next sale, the next refinance, or the next insurance audit will surface it.
For the 30-percent-plus of Lane County housing stock that operates as rental property, decommissioning typically happens at one of three triggers: when an estate is being prepared for sale, when a property-management firm is closing out a long-vacant heating system, or when an insurer asks during policy renewal. The mechanics of the work do not change. The scheduling does. Rental decommissioning has to fit around tenants, and our weekly rotation includes 7:30 AM start times to wrap a basement-and-yard job before evening occupancy resumes.
How we run this service
Decommissioning Report walked into Eugene DEQ
For deals on a clock, we hand-deliver the report to the Western Region office on 7th Avenue rather than rely on the mail. DEQ assigns the tracking number while we are standing there, and that number is what most lenders accept while the formal closeout letter follows.
GPR and magnetometer locate
When the fill pipe was cut flush at grade in a 1970s renovation, we sweep the suspected zone with a magnetometer and confirm with ground-penetrating radar through clay-heavy soils. South Hills properties almost always need both passes; flat valley-floor properties usually clear with a single sweep.
Vapor-free cleaning per NFPA 326
Lower explosive limit below 10% before any cutting torch comes out. Sealed ventilation rig with continuous LEL meter on the discharge. That step prevents the kind of incident that makes the local news.
Cradle and sidewall sampling at ORELAP labs
Minimum two cradle samples per DEQ guidance, plus sidewall samples wherever staining or odor is observed. Shipped same-day to an Oregon-accredited lab for TPH-Dx, BTEX, and PAH analysis. Field-screening readings (PID) are not accepted by DEQ for closure and we do not bill them as a substitute.
Specific situations we handle
Pre-listing decommissioning for older Eugene homes
For homes about to hit the MLS, we close the buried-tank question before the inspection report opens it. Most pre-listing jobs schedule and close inside two weeks.
Rental property decommissioning
Tenant-occupied homes in Whiteaker, the U-Dist, and Bethel, coordinated with property management to minimize disruption and billed direct to the management company or LLC.
Post-conversion tank removal (oil → heat pump or gas)
After an EWEB heat-pump install or NW Natural conversion, the buried tank is no longer in service but still in the regulatory record. Removing it now (while a furnace contractor's trench is fresh and you are already disrupting the yard) is cheaper than coming back at sale.
South Hills hillside tank decommissioning
Tanks on the steep clay slopes of Fairmount, Crescent, College Hill, and Spring Boulevard. Careful spoil staging and matting plans because over-saturated South Hills clay can move when loaded heavily.
Whiteaker and Jefferson Westside historic-lot work
Tight pre-1920 lots with narrow side yards and tanks under what became 1960s side additions. Mini-excavator and saw-cut access plans, often closed in two days rather than one.
Re-decommissioning of pre-1990 sand-fill closures
Historic informal closures (a backhoe operator filled the tank with sand and left, no DEQ paperwork) are no longer recognized. We re-document under current rules so the file closes properly.
Who this service fits
Underground tank decommissioning is the right service when:
- i.You are listing a Eugene-area home built before 1975 and the listing agent or buyer's inspector flagged "possible UST." Even properties that have been on gas or a heat pump for decades often still have a buried tank in place.
- j.You manage rental property in Whiteaker, Friendly, College Hill, or the U-Dist and a tenant report or insurance audit raised the heating oil tank question. Landlords usually decommission once and put the closeout letter in the property file forever.
- k.A 1990s EWEB heat-pump rebate moved your home off oil but the original tank was abandoned in place under pre-DEQ rules. Those closures are no longer recognized at sale, and a re-decommissioning under OAR 340-177 is what closes the file properly.
- l.You see a fill pipe at grade in your yard, a vent stub against a foundation wall, or a circular bare patch in the lawn that never grows grass: classic Eugene tank tells, especially in the older grid neighborhoods.
- m.A neighboring property's recent decommissioning revealed soil contamination near the lot line, and you want a defensive sample-and-document campaign on file before anyone tries to assign you part of the cleanup.
How a job runs, start to finish
Site survey and fixed-price quote
On-site visit, free. We confirm tank location and depth (probe + magnetometer if needed), walk excavator access, identify utility conflicts, and note whether the lot will stage spoil cleanly or whether matting is needed. You receive a fixed-price quote, not a "starting from" estimate that floats once we are on site.
Permit and DEQ notice
We pull the City of Eugene (or Springfield, or Lane County) permit, file the 72-hour DEQ Notice of Intent, and run the 811 utility locate. Homeowner does not handle paperwork.
Excavate, clean, lift
Excavate to the top of the tank, pump residual product and sludge, vent and clean to vapor-free, then either cut in place (tight access) or lift the shell whole (open access). Steel goes to a Lane County scrap recycler under manifest.
Sample, backfill, report
Pull soil samples per DEQ protocol, backfill with clean structural fill compacted in lifts, restore the surface (sod, gravel, asphalt patch, or driveway pour-back), and submit the Decommissioning Report to the Eugene DEQ office. You receive the DEQ assignment letter within 30–60 days of submittal.
What this service includes
A typical underground tank job includes the 811 utility locate, the 72-hour DEQ Notice of Intent to Decommission, the City of Eugene or Springfield permit pull, a magnetometer and ground-penetrating radar locate when the fill pipe is missing, NFPA 326 vapor-free cleaning before any cutting, cradle and sidewall soil sampling at an ORELAP-accredited lab, a hand-walked Decommissioning Report submission to the DEQ Western Region office at 165 East 7th Avenue, and surface restoration to lawn or driveway condition. Post-conversion follow-ups for homes that switched to an EWEB heat pump or NW Natural gas service are part of the same scope, as are pre-1990 sand-fill re-decommissionings that no longer satisfy current OAR 340-177 standards. If staining or odor at excavation triggers cleanup, plume delineation and manifested disposal of impacted soil to Coffin Butte or Short Mountain are added on the same dig wherever the contamination footprint allows.
Aboveground Oil Tank Removal
Pump, cut, and recycle indoor and outdoor aboveground oil tanks (ASTs): basement tanks, garage tanks, exterior pad-mounted tanks. No DEQ filing required, but the disposal manifest and tank-removal letter still belong in the property file.
View service →Underground Oil Tank Removal: Common questions
What is the actual document my lender wants when they say "DEQ closeout"?+
The Decommissioning Report: a multi-page packet with site photos, the soil sample chain-of-custody, the lab analytical results, and the Service Provider sign-off. We submit it to the Western Region DEQ office at 165 E 7th Avenue in Eugene. DEQ assigns a tracking number and issues a closeout letter; that letter is what restores the property file. Most lenders accept the assigned report number even before the formal letter arrives, which is how we close transactions inside ten business days.
My South Hills lot has the tank under the original 1962 driveway. Is removal even possible?+
Sometimes. If a tighter mini-excavator can reach the back side of the tank without saw-cutting the slab, removal is workable. More often, South Hills driveway tanks are decommissioned by abandonment in place under OAR 340-177-0100(2)(b): pump, clean, fill with controlled low-strength material, and document. The site survey is what determines which path is cheaper.
How does a Whiteaker rental property differ from a Friendly owner-occupied home?+
Mechanically, not at all: same DEQ process, same soil testing, same report. Practically, rental properties tend to have older deferred-maintenance tanks (more leaks discovered at decommissioning) and tighter access constraints from later additions and outbuildings. We schedule rental jobs to minimize disruption to occupied units, which usually means starting at 7:30 AM and finishing in one day.
Ready to talk about your specific tank?
Free site survey. Fixed-price quote. Decommissioning Report filed at the Eugene DEQ office.