A bad lab result costs more the further it gets

1. The cost depends on how far the product gets before someone acts

At the low end, a California environmental lab was fined $7,000 for reporting tests it was not accredited to run. At the high end, Congress appropriated at least $1.2 billion after jet fuel from the Navy's Red Hill fuel facility got into drinking water.

Errors that a regulator caught, in an audit or its own sampling, mostly cost a penalty, usually in the hundreds of thousands of dollars to the low millions. Errors found by a customer, a ship's engineer or a resident cost recalls, claims, lost cargoes, cleanup and closures.

2. A day down can cost more than a fine

Most fines in this record were under $1 million. When a plant or pipeline stops, the cost runs by the day. In 9 of the 12 outages below, a single day cost more than $1 million.

Few companies publish what a day of downtime costs, but some report what an unplanned outage took off their earnings, and regulators rule on what utilities may charge customers for replacement power. Where a source gave no daily figure, we divided its reported cost by the days that cost covers. Only one of these outages, at a coal plant in Montana (section 3), followed a test result that a regulator found should have prompted action. The rest show what a day down costs in these industries, whatever the cause.

Per day is the reported cost divided by the days shown, unless marked as reported. Costs are as first reported, before any insurance recoveries. Each source counts a different kind of cost, such as lost margin, repair and restart costs or replacement power, so compare the figures for scale only.

3. Some of the costliest failures started with a result nobody acted on

In July 2018, an oil sample from a transformer bushing at the North Hyde substation in west London came back at the highest moisture level in the operator's own guidance. That level meant "an imminent fault and that the bushing should be replaced." The government-commissioned review found the reading had been recorded in the operator's online system and that the actions it called for "were not actioned." On March 20, 2025, the bushing failed and the transformer caught fire. Heathrow closed for most of the next day. More than 1,300 flights were canceled and more than 270,000 passenger journeys disrupted. British Airways' owner put its own cost at £40 million, and airlines put the total cost at £80 million to £100 million. Ofgem, the UK energy regulator, opened an enforcement investigation in July 2025.

At Red Hill, the Navy's own investigation found that well samples taken in August 2021 exceeded the action level and were "not considered an immediate concern." Results reached the state regulator about two months after the samples were taken. In November, fuel reached residents' taps. The Defense Department has since decided to close the facility permanently.

In Singapore, between March 21 and 23, 2022, a testing lab hired by Glencore Singapore reported chlorinated organic compounds in fuel oil the company had bought for blending. According to the Maritime and Port Authority, the company kept supplying marine fuel blended with it to 24 ships from March 22 to April 1. About 200 ships received the fuel and about 80 reported pump or engine problems. The authority suspended the company's bunkering license for two months.

At a coal plant in Montana, the quarterly stack test for particulate emissions in February 2018 came in exactly at the site's limit: a pass, but the highest result ever recorded for two of its units. Washington's utility regulator later found that the result "should have raised concerns that triggered, at a minimum, collaboration and communication regarding steps necessary to avoid a forced shutdown." In June both units failed a test and were taken out of service until September. In a 2-1 decision, the regulator found too little record of the owners' decisions to show they had acted prudently, and refused to let three of them recover $15.4 million in replacement power costs from customers. Montana's regulator held another co-owner responsible for about $6.3 million more.

In June 2024, a production lot of GM's ACDelco brake fluid failed a federal compliance test at a third-party lab for visible sediment. GM was told 14 months later, and 40,440 bottles were recalled in April 2026. In Sebring, Ohio, lead results over the limit came back from 7 of 20 homes in the summer of 2015. Customers were supposed to be told within 60 days. They weren't told until January 2016, and schools closed. A major US refiner paid the EPA $647,988 in 2021 after a batch of summer gasoline went into commerce even though it had been tested and certified over the volatility limit.

4. Some tests were never run

At an interstate gas pipeline's compressor station in Pennsylvania, an internal assessment after a 2015 corrosion leak called for more sampling. The sampling was never done. In December 2016 the piping ruptured and burned, causing an estimated $15 million in damage. The regulator, PHMSA, found that "no fluid samples have ever been collected and tested to monitor for internal corrosion." The operator paid a $718,700 penalty.

A fuel importer serving Alaska and Washington paid the EPA $389,785 in 2026 for selling imported gasoline and diesel "without first sampling and testing the fuels." At a Canadian utility, moisture got into a generator transformer during a repair, and the transformer failed. Among the causes, the regulator listed "a missing dissolved gas analysis." The transformer was out of service for 78 days. Replacement power cost about C$1 million, which the utility recovered from its insurer.

In early 2019, a batch of photoresist from a chemical supplier reached TSMC's production line with an abnormally treated component. The problem showed up only when wafer yields fell. TSMC said the incident would cut first-quarter revenue by about $550 million. The scrapped wafers were made up the next quarter, and TSMC tightened its checks on incoming materials.

5. Some products passed their tests because the tests didn't cover the problem

In early 2022, four gasoline cargoes carrying methanol passed inspection at the load port in Belgium and again on arrival in Nigeria. The head of NNPC, Nigeria's national oil company, said the inspection protocol at both ports did "not include the test for percent methanol content." More than 100 million liters were pulled from distribution. During the shortage, gasoline sold on the black market for around 500 naira a liter, against 162 naira at the pump.

Marine fuel has had the same problem more than once. In 2018, fuel with contaminants that the standard ISO 8217 test methods could not detect seized fuel pumps on ships supplied in Houston, Panama and Singapore. In 2023, fuel sold as meeting ISO 8217 did the same in Houston. Claims of up to $186 million have followed. A buyer in Curaçao paid $9 million for a 2018 cargo whose certificate covered about 20 standard parameters, all on spec. The contaminants were outside that list. The fuel was sold as slops, and a New York court held the certificate "final and binding."

In Hong Kong in 2015, lead in new public housing plumbing went undetected because the water department's acceptance checks "focused exclusively on functionality." The Housing Authority spent about HK$60 million on bottled water alone. A Midwest biodiesel plant paid the EPA $203,555 in 2026 for certifying sulfur with a test method the agency had not qualified, even though the product was within the limit.

6. Wrong numbers are usually ordinary mistakes, but altered results can go undetected for decades

California's Air Resources Board settled with refineries over "incorrect lab practices" ($88,000), "a calculation error" in a refinery laboratory ($60,000), and "a calculation error due to a malfunction" of a laboratory instrument ($119,000). In one case the fix was new steps to validate results before they were reported. In the others it was revised operating procedures.

In cargo trading, the buyer is paying for what the certificate says. In a 2026 English court case, both sides agreed that a certificate showing a fuel oil cargo's organic chlorides below 1 ppm "was erroneous." Two US Gulf Coast refiners rejected the cargo, and the court put the loss at $26 million, which stayed with the buyer. In the Druzhba pipeline contamination of 2019, documents reviewed by Reuters certified crude as meeting the organic-chloride limit while it carried 80 to 330 ppm against a limit of 10. Flows to Europe stopped for weeks, and Transneft set aside 26.1 billion rubles for compensation. In Belarus, where refineries ran at about half their usual rate, the state petrochemical group Belneftekhim put its lost earnings for April at close to $100 million in a first estimate.

At Bradken's foundry in Tacoma, the lab director altered failing test results on steel castings for US Navy submarines for about 30 years. The company paid $10.9 million to settle, the Navy says it has spent nearly $14 million on the problem, and the director went to prison.

7. A result you can't find costs money too

A large commercial drinking-water lab in California was fined $266,900 in 2023 for 2,633 late results and "35 samples where the laboratory failed to maintain a system to control records and data was lost." KYB, a Japanese maker of seismic dampers, found that 998 installed units did not conform and that the status of 12,353 more was unknown, and set aside ¥35 billion for warranty costs. When diesel exhaust fluid was loaded by mistake into the additive tanks of jet fuel trucks at US airports, the FAA noted that aircraft operators "were not informed until review of the fueling records."

At ČEZ's Dukovany nuclear plant in the Czech Republic, X-ray images of pipe welds proved too poor to show the condition of the welds. In 2015 three of its four reactors went offline while the welds were inspected again. ČEZ blamed its main contractor. Its chief executive called it deliberate cheating and put the cost to the company in 2015 at 2.5 billion Czech crowns.

8. Most errors happen before or after the measurement

In a widely cited hospital lab study, about 68 percent of mistakes happened before the analysis and about 19 percent after it. About 13 percent happened in the analysis itself. Industrial labs have no equivalent public study, but the steps are the same: sample, log in, test, transcribe, review, report.

In two published audits, 2.8 percent and 3.7 percent of values copied by hand did not match the source. Both audits were in health care. Checking by eye doesn't fix it. In a controlled study, visual checking produced about 30 times as many errors as independent double entry, and statistically it was no better than entering the data once. Field audits of working spreadsheets found errors in 94 percent of the 85 examined. When chemistry labs explained failed proficiency tests, wrong units and transcription errors were each about 5 percent of the causes they reported. Equipment failure was 8 percent.

The cases at a glance

The full table of 100 cases, with every source, is available on request.

How we did the study

We read the public record behind incidents and enforcement actions from 2015 to 2026 in fuels, lubricants and fluids, chemicals, pipelines and terminals, utilities and testing labs. A case counted when testing, certificates, sampling or the handling of lab data was part of the failure. The records were regulator orders and reports, inquiries, court judgments, Justice Department releases, company statements and filings, and press that cites a primary document. Six cases come from other industries where the failure was the same. The downtime costs in section 2 come from company reports, regulator rulings and industry bodies, whatever caused the outage. Most recorded costs are partial: a fine or a settlement, rarely the full cost of an incident.

About Sabine Industrial

Sabine Industrial builds SI LIMS for fuel, energy, utility and chemical quality labs. Our team has spent fifteen years working with data extracts from every major LIMS. This is the fourth study in a series on how labs buy, run and replace a LIMS.

Questions about the data: info@sabineriverpartners.com