SO₂: 281 ton (12 month rolling average)
         2.2 lb/ton (3 h rolling average)
The above emission limits are the subject of a Consent Decree which must be met by March 1, 2011

Date Modified

3745-77

August 21, 1997

-

- Three Sulfuric Acid Recovery units located on refinery sites in Delaware, New Jersey and Texas.

- A merchant Sulfuric Acid Recovery and sulfur product facility in Burnside, Louisiana.

- Four sulfur-based acid production facilities located in the Mid-Atlantic and East Coast.

July 1, 2015 - Today DuPont announced it has completed the separation of its Performance Chemicals segment through the spin-off of The Chemours Company (Chemours). Chemours begins "regular way" trading today on the New York Stock Exchange (NYSE) under the symbol "CC".  Today DuPont common stockholders receive one share of common stock of Chemours for every five shares of DuPont common stock they held at5:00 p.m. ET on June 23, 2015. DuPont common stockholders will receive cash in lieu of fractional shares of Chemours.  "Today's successful spin-off advances DuPont's transformation to a higher growth, higher value, global science and innovation company," said DuPont Chair and Chief Executive Officer Ellen Kullman. "We are now fully focused on markets where our science gives the company a distinct competitive advantage, enabling DuPont to drive higher, more stable growth.  "The next generation DuPont is leaner and more efficient, better able to capitalize on key capabilities that help solve major global challenges and enable our customers to provide plentiful, healthier food; renewably sourced advanced materials; ample energy; better infrastructure and transportation," said Kullman. "As we move forward, we are committed to continuing to execute our strategy to deliver value for shareholders today, while positioning DuPont for a successful future."

September 8, 2010 - Gas leak at DuPont plant closes Ohio park, officials say no danger to people in area.  Fire officials say a gas leak at a DuPont plant just outside Cincinnati has caused an evacuation at a county park and golf course.  Miami Township Fire Chief Steve Ober said Wednesday that monitors show the leak of a gas containing oleum was contained to the DuPont property. He says there is no danger to people in the area. He says officials believe little gas was released.  Shawnee Lookout Park and its golf course were evacuated at about 2 p.m. as a precaution.  Ober says oleum is a fuming sulfuric acid and that the company is handling cleanup.  He says no injuries were reported and all non-essential DuPont employees were sent home.

June 25, 2003 - U.S. Environmental Protection Agency Region 5 has cited DuPont Corp. for alleged violations of federal and state clean-air regulations at the company’s Fort Hill sulfuric acid plant, 11215 Brower Road, North Bend, Ohio.  EPA alleges DuPont modified its facility, causing an increase in sulfur dioxide emissions, without meeting federal new source performance standards for sulfuric acid plants or getting a permit to prevent significant deterioration of air quality. Before existing air-pollutant sources can be modified in areas that comply with all national outdoor air-quality standards, companies must get permits that restrict their emissions.  Other alleged violations include failure to use best available technology to control sulfur dioxide emissions, failure to give permitting authorities all relevant information and failure to get installation and operating permits.  These are preliminary findings of violations. To resolve them, EPA may issue a compliance order, assess an administrative penalty or bring suit against the company. DuPont has 30 days from receipt of the notice to request a meeting with EPA to discuss the allegations and how to resolve them.  “EPA’s mission is to protect public health and the environment,” said Region 5 Administrator Thomas V. Skinner. “We will take whatever steps are needed to ensure compliance with the Clean Air Act.”  Exposure to sulfur dioxide can impair breathing, aggravate existing respiratory diseases like bronchitis and reduce the ability of the lungs to clear foreign particles. Sulfur dioxide can also cause acid rain. Children, the elderly and people with existing heart and lung conditions are the most sensitive.