API 653 Tank Inspection Support in Ohio

Short answer: For an Ohio storage tank, the API 653 inspection belongs to the owner's API 653 Authorized Inspector, who evaluates the data and signs. The data comes from NDE: tank-floor MFL scanning with UT prove-up, shell UT, weld examination and settlement readings. Atlantis performs that NDE at Ohio refineries, pipeline and products terminals, Lake Erie and Ohio River ports and chemical plants, and delivers a digital report your inspector can sign against.

Ohio's tank population is spread across the whole state rather than concentrated in one corridor. Two refineries sit side by side near Toledo, a third operates at Lima and a fourth at Canton. Crude and products pipelines cross the state, feeding terminals around Columbus, Dayton, Cincinnati, Cleveland and Akron. Lake Erie ports in the north, Ohio River terminals in the south, chemical plants at Lima and in the Ohio River valley, and Utica Shale processing in the east each add their own tanks. This page describes where those tanks are, what API 653 requires, which Ohio and federal rules apply on top, and what Atlantis does. Atlantis performs the NDE; your API 653 Authorized Inspector remains inspector of record and signs the inspection report. If you have tanks coming due, send us your Ohio tank list.

Where API 653 tanks are in Ohio

Direct answer: Ohio's field-erected tanks are concentrated at the Toledo refineries and Maumee Bay terminals, the Lima refinery and chemical complex, the Canton refinery, products terminals around Columbus, Dayton, Cincinnati, Cleveland and Akron, Lake Erie and Ohio River ports, chemical plants in the Ohio River valley, and Utica Shale processing sites in eastern Ohio.

Toledo and northwest Ohio

Two refineries operate next to each other in Oregon, just east of Toledo: one owned by PBF Energy and one by Cenovus Energy. Together with the port of Toledo on Maumee Bay and nearby products and crude terminals, they make the Toledo area Ohio's largest single tank cluster. The flat lake-plain clays of northwest Ohio drain slowly, so standing water around tank pads, chime corrosion where the bottom projects beyond the shell, and differential settlement are recurring inspection themes. Lake-effect weather and freeze-thaw cycles add foundation and roof concerns.

Lima

The Lima refinery, also owned by Cenovus, receives crude by pipeline and is operated together with the Toledo refinery as an integrated system, with neighbouring chemical plants in the Lima area. Refinery crude, intermediate and product tanks sit alongside chemical storage. Tanks in chemical service may be built and inspected to API 650 and API 653 even though their contents are not petroleum, because those are the recognised standards for welded atmospheric steel tanks.

Canton and northeast Ohio

Marathon Petroleum's Canton refinery serves northeast Ohio, and products terminals around Cleveland, Akron and Youngstown distribute fuels across the region. The port of Cleveland and other Lake Erie docks handle liquid bulk. Lake-effect snow belts east of Cleveland put real loads on fixed roofs and freeze floating-roof drains if they are not managed.

Columbus, Dayton and central Ohio

Refined products reach central and southwest Ohio by pipeline, feeding terminals around Columbus and Dayton that hold internal floating-roof gasoline tanks, distillate tanks, and ethanol and additive tanks. Pipeline stations and breakout tanks on these systems are part of the same network.

Cincinnati and the Ohio River

Barge-fed terminals along the Ohio River at Cincinnati and upstream toward Marietta and the eastern border handle fuels, asphalt and chemicals, and the river valley hosts chemical and power plants with their own storage. Ohio River flood seasons affect foundations and access.

Utica Shale and eastern Ohio

Natural gas and liquids production in eastern Ohio brings gas processing and fractionation plants, condensate storage and produced-water tanks. Many NGL products are stored in pressure vessels rather than atmospheric tanks, and well-site production tanks are generally regulated through the Ohio Department of Natural Resources' oil and gas programme rather than storage-tank rules, so applicability of API 653 should be confirmed tank by tank. Larger atmospheric condensate and water tanks at central facilities are commonly inspected to API 653.

What API 653 requires, in plain terms

Direct answer: API 653 sets the inspection, repair, alteration and reconstruction rules for in-service atmospheric steel tanks built to API 650 or API 12C. It requires monthly routine checks by the owner, a formal external inspection by the Authorized Inspector, shell thickness measurements, and internal inspections at intervals driven by measured corrosion and capped by the code. The current Fifth Edition has addenda through Addendum 4 (July 2025).

Four layers of inspection make up the code's approach. The first is the owner's routine in-service check, at least monthly, covering leaks, shell distortion, signs of settlement, coating and insulation damage, roof and seal condition and foundation cracking. The second is the formal external inspection by the Authorized Inspector, required at least every five years, or more often where the shell is corroding fast: the code ties the interval to a quarter of the remaining shell corrosion life (RCA/4N). The tank can stay in operation.

The third layer is shell ultrasonic thickness measurement. Where the owner uses it, it is needed at least every five years while the corrosion rate is unknown; once the rate is known, the interval is the smaller of half the remaining shell corrosion life (RCA/2N) or fifteen years. The fourth is the internal inspection, which requires the tank to be emptied and cleaned. A new tank's first internal inspection is due at ten years, extendable by safeguards such as linings, cathodic protection, leak detection or a release prevention barrier, up to twenty years without a release prevention barrier or thirty with one. Subsequent internal intervals are calculated from measured bottom corrosion, so that the floor remains above the minimum thickness the code accepts at the next inspection, within the same ceilings, or set through a qualifying risk-based assessment performed by the owner's specialists.

Addendum 4 revised the requirements for measuring tank-bottom plate thickness, so older procedures and inspection plans should be reviewed against the current edition and addendum, available from api.org. Settlement is assessed using the code's settlement annex, and repairs and alterations follow the code's examination and testing requirements with API 650 as the construction reference. Every one of these decisions belongs to the owner and the Authorized Inspector. Background reading: API 653 tank inspection intervals explained and the API 653 tank inspection guide.

Ohio regulations that sit on top of API 653

Direct answer: Ohio does not write API 653 intervals into state law for aboveground tanks. The State Fire Marshal and local fire officials administer the Ohio Fire Code, which requires permits for installing, altering, removing or temporarily taking flammable and combustible liquid tanks out of service. PHMSA inspects hazardous-liquid pipelines in Ohio directly, including breakout tanks, while EPA SPCC and OSHA PSM apply as elsewhere.

State Fire Marshal and the Ohio Fire Code

Ohio's fire code is adopted in the Ohio Administrative Code (rule series 1301:7-7) and includes a flammable and combustible liquids chapter based on the International Fire Code and NFPA 30. It requires a permit to install, alter, remove, abandon or place temporarily out of service a stationary flammable or combustible liquid storage tank; where the local fire code official does not issue such permits, the State Fire Marshal does. The fire code deals with siting, construction, containment, venting and closure rather than periodic integrity inspection, so in-service condition is managed through API 653 for field-erected tanks and STI SP001 for shop-built tanks. Note that the State Fire Marshal's Bureau of Underground Storage Tank Regulations (BUSTR) is an underground tank programme; it does not run an aboveground inspection regime. Confirm current permit requirements with your local fire official or the State Fire Marshal.

PHMSA, PUCO and Ohio breakout tanks

The Public Utilities Commission of Ohio enforces federal pipeline safety rules for intrastate natural gas pipelines and states that it has no jurisdiction over other pipelines, including liquids lines. Hazardous-liquid pipelines in Ohio, and their breakout tanks, are therefore overseen by PHMSA directly. Under 49 CFR 195.432, atmospheric and low-pressure steel breakout tanks must be inspected per API 653, but the code's alternative risk-based internal inspection interval may not be used, and pressurised breakout tanks follow API 510. Because the regulation incorporates an older API 653 edition, operators should reconcile it with the current edition in their procedures.

EPA SPCC and OSHA PSM

SPCC-regulated facilities must test or inspect each aboveground oil container for integrity on a regular schedule and after material repairs, with the frequency, testing type and inspector qualifications taken from industry standards. The professional engineer who certifies the SPCC plan documents which standard applies to each tank. Tanks inside OSHA PSM-covered processes, common at the refineries and chemical plants at Toledo, Lima and Canton and in the Ohio River valley, fall under the mechanical-integrity element at 29 CFR 1910.119(j), with API 653 as the usual recognised practice.

Radiography in Ohio

Ohio is an NRC Agreement State, and radioactive-materials licensing, including industrial radiography, is administered by the Ohio Department of Health. Repair-weld radiography is carried out only by crews licensed for that work in Ohio; confirm current licensing authority with the state before planning RT.

NDE methods for API 653 work in Ohio

Direct answer: Ohio API 653 inspections draw on tank-floor MFL with UT prove-up, shell and chime-area UT, corrosion mapping, visual examination, MT, PT and vacuum-box testing after repairs, PAUT or RT on new welds, and settlement surveys. Poorly drained lake-plain clays in the northwest and river-terrace sites in the south shift the emphasis.

Procedures are reviewed by an ASNT NDT Level III and technicians are certified to an SNT-TC-1A written practice. MFL screens the floor quickly; every reportable indication is proved up with UT so the inspector evaluates measured remaining thickness rather than a signal amplitude. See MFL versus UT for tank floors and aboveground storage tank inspection for more detail.

How Atlantis supports your Authorized Inspector

Direct answer: Atlantis turns your API 653 inspector's plan into an NDE scope, performs the examinations with certified technicians under Level III oversight, checks the data on site, and delivers a digital report built for the inspector's evaluation and signature. We are not an Authorized Inspection Agency and we do not supply API-certified inspectors.

In practice the handoff looks like this. Your inspector, or your contracted inspection agency, defines what is needed: floor coverage, shell and chime locations, nozzle and weld examinations, settlement points. We write or review the procedures under ASNT NDT Level III oversight for that tank's construction, coating and service. Our technicians, certified to an SNT-TC-1A written practice, perform the examinations. Before demobilising, the crew checks readings against calibration records and the previous report, so anomalies can be re-measured while the tank is still open.

The deliverable is a structured report in our reporting platform: floor maps with UT prove-up values, shell readings by course and location, chime and annular readings, weld examination records, photographs, calibration data and technician certifications, using report templates that match the inspector's file. We can calculate corrosion rates and remaining life from our thickness data for the inspector's review, but the inspector evaluates the results, decides on repairs and sets the next dates. Atlantis performs the NDE; your API 653 Authorized Inspector remains inspector of record and signs the inspection report.

For owners with tanks spread across Ohio, the same data can live in our inspection-management ERP with due dates for every tank, or on a digital twin of each terminal. Several large inspection firms sell the Authorized Inspector service and NDE as a bundle; we deliberately sell only the NDE, which leaves you free to keep the inspector you trust. Request an NDE scope for your inspector's plan, or read about API 653 tank inspection support.

Planning around Lake Erie winters, river floods and turnarounds

Direct answer: In Ohio, in-service shell UT, external inspections and settlement readings can run through most of the year. Internal inspections, floor scanning and repair welding are usually planned for spring through autumn, around lake-effect winters in the north, Ohio River high water in the south, and refinery turnaround schedules at Toledo, Lima and Canton.

Snow belts and cold. Northeast Ohio's snow belt and the cold off Lake Erie slow down roof access, open-tank work and coating repairs. Couplant, batteries and technicians all perform worse in the cold, and frozen water in an emptied tank complicates floor scanning. Owners in the north usually schedule internal inspections between April and October.

Ohio River high water. Cincinnati and other river terminals face seasonal high water that can raise groundwater under tank pads and, in major floods, threaten foundations and access roads. A settlement survey after a significant flood, compared with the baseline, gives the inspector evidence on whether a tank moved.

Refinery turnarounds. Tank outages at refineries compete with unit turnarounds for cleaning crews, vacuum trucks, scaffolding and permits. Scheduling tank work outside turnaround peaks usually improves availability.

Seasonal product demand. Terminals shift between summer gasoline and winter distillate inventories, so the tank that can be emptied changes with the season. A multi-year rotation keyed to those swings avoids costly transfers. Book a scoping call with your dates.

API 653 inspection support across Ohio

Direct answer: Atlantis mobilises crews to tank sites across Ohio, with the schedule agreed during scoping: Toledo, Lima, Canton, Columbus, Dayton, Cincinnati, Cleveland, Akron and eastern Ohio. The Cincinnati and Cleveland pages below cover tank, corrosion, piping, vessel and third-party inspection in more detail.

• Cincinnati and southwest Ohio: tank inspection in Cincinnati, corrosion inspection in Cincinnati, piping inspection in Cincinnati, pressure vessel inspection in Cincinnati and third-party inspection in Cincinnati.
• Cleveland and northeast Ohio: tank inspection in Cleveland, piping inspection in Cleveland, pressure vessel inspection in Cleveland and third-party inspection in Cleveland.
• Toledo, Lima, Canton, Columbus, Dayton and eastern Ohio: served by mobilised crews; include the site address with your tank list.

The piping and pressure equipment around your tanks follow their own codes; see our companion hubs for API 570 piping inspection in Ohio and API 510 pressure vessel inspection in Ohio, and the statewide NDT inspection services in Ohio page. Pipeline operators can also see pipeline inspection services.

What to send us for a quote

Direct answer: Send the tank list, previous API 653 reports, your inspector's plan, the access and cleaning status, and the dates you are working to. We return a scoped NDE quote within 24 hours.

1. Tank list and drawings: tank IDs, diameter, height, roof type, product, year built, plate thicknesses, bottom history, lining and cathodic protection, and whether any tank is a pipeline breakout tank.
2. Previous reports: external and internal reports, floor maps, shell and chime readings and settlement surveys, so we repeat locations and corrosion rates stay valid.
3. The inspector's plan: examinations, coverage, acceptance references and report format, and the name of your Authorized Inspector or agency.
4. Access and cleaning: service status, cleaning contractor, gas-free and confined-space arrangements, scaffold, roof or rope access.
5. Dates: SPCC or PHMSA due dates, fire-code permit timing for any repairs, outage and turnaround windows, and site safety orientation.

Get a quote within 24 hours.

Frequently asked questions: API 653 tank inspection in Ohio

Who does API 653 tank inspections in Ohio?

An API 653 Authorized Inspector, working for the owner or an inspection agency, is responsible for the inspection and signs the report. Qualified NDE technicians collect the data. Atlantis performs that NDE with ASNT-certified technicians under Level III oversight and hands the results to your inspector.

Does Ohio require API 653 inspections by law?

Ohio law does not set API 653 intervals for tanks in general. API 653 becomes required or expected through PHMSA rules for breakout tanks and through EPA SPCC and OSHA PSM, which depend on industry standards. The Ohio Fire Code adds permit requirements for installation, alteration, removal and temporary closure. Confirm obligations for your site.

Do I need a fire-code permit to repair an aboveground tank in Ohio?

The Ohio Fire Code requires a permit to alter, remove, abandon or temporarily take a stationary flammable or combustible liquid tank out of service, issued by the local fire code official or, where none issues them, the State Fire Marshal. Check with your local fire official before planning major repairs.

Does BUSTR regulate aboveground tanks?

No. BUSTR, the State Fire Marshal's Bureau of Underground Storage Tank Regulations, covers underground tanks. Aboveground flammable and combustible liquid tanks fall under the Ohio Fire Code, with SPCC and other federal rules on top.

Who regulates pipeline breakout tanks in Ohio?

PHMSA. PUCO's pipeline safety programme covers intrastate natural gas pipelines only, so hazardous-liquid pipelines and their breakout tanks in Ohio are overseen by PHMSA, which requires API 653 inspection without the code's alternative risk-based internal interval.

How often must a storage tank be inspected under API 653?

Owner checks at least monthly; a formal external inspection by the Authorized Inspector at least every five years, sooner if shell corrosion is rapid; shell UT every five to fifteen years depending on corrosion rate; and internal inspections starting at ten years for a new tank, then set from measured floor corrosion within the code's ceilings.

Is Atlantis an Authorized Inspector?

No. We are not an Authorized Inspection Agency and we do not supply API-certified inspectors. We perform the NDE and document it; your inspector evaluates the results and signs.

Can you inspect while the tank stays in service?

Yes for shell UT, corrosion mapping, external visual examination and settlement readings. Floor scanning, internal weld examination and internal critical-zone readings need the tank emptied, cleaned and gas-free.

What certifications do your technicians hold?

Technicians are certified to an ASNT SNT-TC-1A written practice for each method, with procedures reviewed by an ASNT NDT Level III. Radiography is performed only by crews licensed for industrial radiography in Ohio.

Do you perform RBI or fitness-for-service assessments?

No. Those are performed by the owner's engineers or specialist consultants. Atlantis supplies the thickness, floor and weld data they need.

Do you offer API 653 certification training?

No. Atlantis provides ASNT SNT-TC-1A NDT training only, including NDT training in Ohio. For the API certification route, see our API inspector career guide.

How quickly can a crew reach Toledo, Cincinnati or Cleveland?

Crews are mobilised to your site on a schedule agreed during scoping, built around your outage window and due dates. Send tank details for a quote within 24 hours.

Plan your Ohio tank inspections

Whether it is a floor scan at a Toledo refinery tank, a five-year external survey at a Columbus terminal or a post-flood settlement check on the Ohio River, begin with your inspector's plan and your tank list. Send us your tank list, or see NDT consulting in Ohio for Level III procedure support.

More Atlantis NDT services in Ohio

• NDT training and certification in Ohio
• Level III consulting in Ohio
• NDT inspection services in Ohio
• API 510 pressure vessel inspection support in Ohio
• API 570 piping inspection support in Ohio
• NDT ERP software in Ohio
• Practical NDT simulator in Ohio

Part of the wider aboveground storage tank inspection service at Atlantis NDT.