Safe, compliant tank swaps for industrial & commercial sites
Aging or undersized oil tanks create safety, environmental, and operational risks. Bunney’s Inc. helps Arizona facilities replace above-ground and underground tanks with code-compliant systems—planned around your production windows and site constraints. Expect clear scopes, clean execution, and turnkey documentation.
New to Bunney’s? Learn who we are and explore our capabilities.
Why facilities choose Bunney’s
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Arizona expertise: Designs and schedules built for heat, dust, monsoons, and hard soils.
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Compliance first: Permitting, containment, and testing aligned to applicable codes (e.g., NFPA 30/31), EPA UST rules, and local authority requirements.
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Minimal disruption: Off-hours cutovers, temporary fuel bridging, and phased tie-ins.
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Right-sized solutions: Above-ground (AST), underground (UST), and double-wall options matched to actual load, delivery cadence, and footprint.
When to plan a replacement
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Visible corrosion, seam weeping, or frequent sludge in filters
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Unexplained fuel loss or fuel sheen at low points
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Settlement, out-of-level saddles, or damaged supports
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Age 15–25 years (material and environment dependent)
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New insurance or regulatory requirements (secondary containment, overfill, monitoring)
Our replacement process
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Assessment & right-sizing – Capacity analysis, containment needs, and cutover plan.
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Permitting & prep – Environmental notifications, utility locates, rigging, and safety/LOTO.
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Decommission old tank – Pump-down, inerting, certified cleaning, removal, and waste profiling.
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Set new tank & containment – Foundations/saddles, secondary containment, vents, overfill, and monitoring.
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Tie-in & test – Tightness/pressure tests, leak-detection calibration, fuel polishing if needed.
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Turnover – Commissioning, operator orientation, as-builts, manifests, and test reports.
Ready to plan your project? Get a site walk and budgetary estimate from our paving team.
Tank and safety options
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AST: Rapid install, easy inspection; single or double-wall with integral basins.
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UST: Space-saving profiles; fiberglass or protected steel with interstitial monitoring.
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Protection & controls: Overfill prevention, spill buckets, remote gauging, leak detection, cathodic protection (where applicable).
Arizona-specific considerations
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Heat & UV: Coatings, shade structures, and expansion allowances extend service life.
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Monsoon & drainage: Secondary containment sizing, proper vent terminations, and graded pads.
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Soils & buoyancy: Engineered foundations and anchoring for saturated-soil events.
What you receive at closeout
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Permit sign-offs and inspection records
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Pressure/tightness test certificates
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Waste and tank disposal manifests
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As-built drawings and O&M packet
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Preventive maintenance schedule and monitoring checklist
You’ll receive a clear, line-item proposal with scope, frequencies, SLAs, and optional upgrades—no surprises.
FAQs
How long does an oil tank replacement take?
Above-ground swaps are often finished within a few working days. Underground replacements take longer due to excavation, backfill, and inspection steps. Your timeline depends on size, access, and permitting.
Can you keep our operations running during the swap?
Yes. We stage temporary fuel, sequence cutovers, and schedule off-hours work to keep boilers, generators, or process loads online.
Do you handle permits and environmental testing?
We manage permits, inspections, and required testing (tightness, interstitial monitoring, cathodic protection where applicable) and include all closeout documentation.
What happens to the old tank and sludge?
Tanks are inerted, cleaned, and removed by certified crews. Residuals are profiled and hauled to approved facilities; all manifests are provided at turnover.
Should we choose above-ground or underground?
ASTs are quicker to install and easier to inspect; USTs save space and protect aesthetics. We’ll recommend the safest, most compliant option for your capacity, site, and regulatory context.
Can you upgrade containment without a full replacement?
In some cases, yes—adding double-wall day tanks, spill containment, or overfill protection can reduce risk. We’ll evaluate whether retrofits meet current standards.
