The Delaware City Refinery has been continuously releasing more than permitted amounts of toxic sulfur dioxide into the air for a week now, yet there are still more questions than answers.
Here’s what we know.
The Delaware City Refinery is located on 5,000 acres just north of Delaware City, along the Delaware River, with a New Castle address.
It’s owned by PBF Energy, “one of the largest independent petroleum refiners and suppliers of unbranded transportation fuels, heating oil, petrochemical feedstocks, lubricants and other petroleum products in the United States,” according to the company’s website.
The Delaware City Refinery is “one of the largest and most complex refineries on the East Coast,” the website says, and can process up to 180,000 barrels of oil per day.
Historically, the Delaware City Refinery has been the state’s biggest polluter, frequently cited for air pollution violations. In October 2024, the Delaware Department of Natural Resources and Environmental Control found that the refinery had deviated from its permit standards nine times between September 2022 and August 2023 and fined the refinery $75,000.
More than 86,000 people live within a 5-mile radius of the refinery, over half of whom are people of color and 20% of whom are lower-income, according to EPA data. Due to concerns with diversity, equity and inclusion, earlier this year, the EPA canceled a $500,000 grant that would have allowed the nonprofit Clean Air Council to monitor air pollution in the area of the refinery.
Sulfur dioxide is a gas composed of sulfur and oxygen. It forms when fuel such as oil, like at the Delaware City Refinery, is burned.
Sulfur dioxide can make it hard to breathe and harm the human respiratory system, according to the Environmental Protection Agency. It can also harm animals and plants.
Delaware Environmental Release Notification System, which reports on the Delaware City Refinery releases, says sulfur dioxide “may cause death or permanent injury after very short exposure to small quantities.”
Signs of acute sulfur dioxide exposure include symptoms such as coughing, shortness of breath, wheezing, fatigue, chest discomfort, nausea, vomiting, stomach pain and cyanosis, the reports say. People with asthma, subnormal pulmonary functions or cardiovascular disease are at a greater risk than others.
The fossil fuel industry is the largest contributor of sulfur dioxide into the atmosphere, according to the EPA. Refineries like the Delaware City Refinery are typically allowed to emit certain amounts of pollutants into the air and water through state and federal permits.
The release of sulfur dioxide is ongoing and will continue “until the repairs are made,” a May 31 Delaware Environmental Release Notification System report says.
The refinery’s air quality permit doesn’t appear to be available online, so how much sulfur dioxide the company is normally permitted to release is unknown.
According to reports publicly posted on the Delaware Environmental Release Notification System website, the following amounts of sulfur dioxide were released by the Delaware City Refinery since May 25.
The Delaware Department of Natural Resources and Environmental Control issued a news release related to these incidents on May 31. It noted information from an air monitoring station east of the refinery on Route 9, but didn’t state the direction in which the wind was blowing at the time the information was recorded.
The “health standard” for sulfur dioxide, according to the news release, is 75 parts per billion. The highest hourly measurement during “this incident” was 25 parts per billion for 6 a.m. on May 31, the release said. The highest-recorded daily average sulfur dioxide level was 2.5 parts per billion on May 26. When the news release was issued on May 31, the average was 7.33 parts per billion.
Since the news release was issued, more data has become available on the department’s Air Quality Monitoring Network website. It shows a new highest hourly measurement of 29 parts per billion at midnight on June 1.
Some DERNS reports cite “a boiler failure.”
DNREC and PBF representatives did not immediately respond to questions.
DERNS sends out notifications of chemical releases, but only to people who have signed up.
DNREC spokesman Michael Globetti said concerning a past chemical release that DERNS is “not intended to be an emergency notification system, but rather a system to allow citizens to stay informed.”
The Department of Emergency Management Agency has sent out notifications of past chemical releases, but Director A.J. Schall said they haven’t sent out any releases related to the current refinery incident.
It’s unknown. DNREC and PDF representatives did not immediately respond to questions.
Molly McVety contributed to this story. Shannon Marvel McNaught reports on southern Delaware and beyond. Reach her at smcnaught@gannett.com or on Facebook.
Delaware Valley picked up five bonus point wins to take a 40-29 home dual win over High Point in Frenchtown.
Luke Cyphert started the dual at 215 with a pin over High Point’s Kaleb DeFalco. Julian Bednar (120), and Tristian Fawthrop (132) also won via pin.
Oliver Paul gave the Terriers (3-0) five points off a 21-6 tech over John McCarthy at 175, Michael Hasson took a 23-7 tech over Tyler Brarman at 144 and state qualifier Sebastian Dobak earned a 7-1 decision over Gerard Empirio at 150. Vincent Rainey outlasted Thomas Jaust at 113 for a 7-4 sudden victory win.
Trey Falkenstein picked up a forfeit at 138 to make it a four match sweep for Del Val between 132 and 150.
Luke Tompkins recorded a pin for the Wildcats (1-1) at 157 while Jack Kitchart picked up a pin at 190. Region 1 third place finisher Gavin Mericle took a 2-1 decision win over Luken Alberdi at 285, Logan Takach recorded a 7-3 decision over Tanner Donaruma at 126 and Jayden Ruplall earned five points at 165 with a 17-1 tech over Rylan Bush.
Primo Maschio won the $110,000 DSBF series championship for sophomore male pacers Thursday at Bally’s Dover
Photos by Quenton Egan Photography
DOVER — Following decisive wins in both preliminary legs, Primo Maschio dug deep to head off Lew Not Lou for a 1:52.3 triumph in the $110,000 Delaware Standardbred Breeders’ Fund (DSBF) series championship for 3-year-old male pacers on Thursday, Dec. 18, at Bally’s Dover.
Primo Maschio and driver Trae Porter landed second-over on the first turn behind Shore Not Beach (driven by Pat Berry), who worked to clear early leader Lew Not Lou (Jason Thompson) for the lead at the end of a :27 first quarter. Left uncovered off the first turn, Primo Maschio drove on to assume control of the terms with a circuit to go, and the Badlands Hanover-Primadonna gelding rolled to the half in :55.
Up the backstretch and through the far turn, Primo Maschio faced sustained pressure from Lew Not Lou, who re-emerged from third to force a :28.2 third quarter and pose an even bigger threat off the home turn.
“I was a little worried,” said Porter of Lew Not Lou taking aim at Primo Maschio off the corner. “He got to my saddle pad, but as soon as we got to the top of the stretch, my colt dug in deeper. He’s such a nice horse.”
Primo Maschio kept Lew Not Lou a neck at bay while Shore Not Beach stayed on from the pocket to finish third, just a length shy of the top pair.
Walter Callahan trains Primo Maschio, now a 19-time winner with $414,618 in earnings from 27 career starts, for Forrest Bartlett. As the overwhelming 1-10 favorite, Primo Maschio paid $2.20 to win.
Tommy Denvir scored a game-high 30 points for Delaware Valley in its 61-51 win over Bernards in Alexandria.
Delaware Valley (2-0) led 40-27 at halftime against Bernards.
Lochlyn Marsh scored 12 points for Delaware Valley. Peter Dubljevic had eight points.
Ryan Frame and Richie Jobs each scored 16 points for Bernards (0-3). Ricky Giebel tallied 10 points, five rebounds, four assists and five steals. Casey Hoeckele recorded 12 rebounds with four points and three blocks.
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