Chile Charges Fuel Giant Over Bay Pollution

Chile’s environmental regulator has charged Copec, the fuel giant behind the country’s largest filling-station chain, over excess wastewater sent into a bay near Valparaíso. Its Santiago-listed parent, Empresas Copec, also owns Mapco, a fuel retailer in the United States.

The Superintendencia del Medio Ambiente (SMA), Chile’s environmental enforcement agency, announced the charge on Wednesday 14 October. At the worst point, in August 2025, a fuel-related pollutant from Copec’s Quintero terminal ran 382% above its limit, the agency said.

The charge targets the fuel giant’s Terminal Marítimo de Quintero, run by Copec S.A. in the El Bato area of Quintero, on Chile’s Pacific coast. The site treats liquid waste from the terminal and a lubricants plant, then releases it into the bay through a sea outfall.

Chile’s 2000 emission rule for industrial wastewater, known as DS 90, governs discharges into the sea, rivers and lakes. A 2019 SMA monitoring order set the maximum volume of treated waste the terminal may release each day.

According to the SMA, the terminal exceeded that daily maximum in November 2023 and then without a break from April to September 2025. In August 2025, the extra volume pushed its load of volatile hydrocarbons up to 382% over the permitted level.

The agency opened the case on Thursday 8 October and made it public on Wednesday 14 October. It rests on inspections in 2024 and 2026 and on the company’s own monitoring reports.

The SMA classed the breach as minor, the lowest of the three levels in Chilean environmental law. Minor breaches can bring a written warning or a fine of up to 1,000 annual tax units (about US$882,000).

The annual tax unit, or UTA, is an inflation-linked accounting unit that Chile’s tax service updates each month. In October 2026 one unit equals CLP 865,812 (about US$882), at about 981.8 pesos per US dollar on 15 October 2026.

That puts the ceiling at about CLP 866 million (about US$882,000). The fuel giant’s parent also controls forestry company Arauco and fuel and gas distributors in Colombia, Ecuador and Peru, so the sum is small.

Quintero and neighboring Puchuncaví share a bay north of the port city of Valparaíso, lined with fuel and gas terminals and heavy industry. The SMA calls the bay a highly sensitive area with its own environmental quality standard.

The government runs a special air pollution plan for the towns of Concón, Quintero and Puchuncaví. During past episodes of mass poisoning in the area, the SMA ordered emergency measures on local plants.

In December 2024 the SMA fined the same terminal 277.4 annual tax units, more than CLP 224 million (about US$228,000), BioBioChile reported. The agency found that the terminal failed to cut operations during an air pollution alert and broke emergency orders issued during mass poisoning episodes.

On 23 June 2026, Chile’s Second Environmental Court, a specialist tribunal, struck down one of the three penalties and ordered a new ruling on it. Families from Quintero and Puchuncaví have also filed criminal complaints against former bosses of state oil firm ENAP over pollution data.

Emanuel Ibarra, appointed head of the SMA in August, said that “the requirements set in liquid-waste monitoring programs are fundamental.” He stressed the need to protect the bay’s sensitive marine ecosystem.

The fuel giant told BioBioChile it had been notified and was reviewing the case file to decide its next steps. The company said it “reaffirms its permanent commitment to protecting the environment” and would cooperate with the proceedings.

For investors, the maximum fine is small next to the business of Empresas Copec, profiled in our Company Intelligence page on Empresas Copec . The bigger cost is reputational, because the SMA already fined the same terminal in December 2024.

Americans may know the fuel giant’s parent without realizing it, because it owns the US fuel retailer Mapco. For visitors to the beaches north of Valparaíso, nothing changes for now, since the SMA imposed no emergency measures on the terminal.

The fuel giant has not yet said whether it will offer a compliance plan or contest the charge. A plan approved by the SMA would suspend the case, while a defense would lead to a ruling and a possible fine.

Whether the extra discharges harmed marine life in the bay has not been established. The final penalty, anywhere from a warning to about US$882,000, is also still open.

Copec is the Chilean fuel giant behind the country’s largest network of filling stations. It belongs to Empresas Copec, a conglomerate listed on the Santiago stock exchange.

Chile’s environmental regulator says Copec’s Quintero terminal repeatedly sent more industrial wastewater into the bay than allowed. In August 2025, its volatile hydrocarbon load ran 382% over the limit.

The breach is classed as minor, so the penalty ranges from a written warning to 1,000 annual tax units. That ceiling is about CLP 866 million (about US$882,000).

Copec has 15 working days from notification to offer a compliance plan to fix the problem. Otherwise it has 22 working days to file a defense before the regulator rules.

Sources: Superintendencia del Medio Ambiente (SMA) , 14 October 2026; SMA, SNIFA case file F-036-2026 , 8 October 2026; Servicio de Impuestos Internos (UTM/UTA 2026) , 15 October 2026; Empresas Copec , 15 October 2026; BioBioChile , 14 October 2026; El Dínamo , 14 October 2026; BioBioChile (Second Environmental Court ruling) , 23 June 2026.

Editorial responsibility: Matthias Camenzind , Editor-in-Chief · Editorial standards · Report an error