Denka timeline
Category: Other
Updated: 7 Feb 2019
Contributors
Created byJeff Nowak
Attachments
Events
Chemical company DuPont Performance Polymers invents neoprene ...DuPont opens a chemical plant in LaPlace.DuPont begins producing chloroprene and neoprene at the LaPlace plant.The EPA says DuPont violated the Clean Water Act ...The EPA seeks a $31,800 civil penalty from DuPont ...EPA cites DuPont for violating
the Clean Drinking Water Act at LaPlace location.A DuPont facility in Rubbertown,
an industrial area in
Louisville, Kentucky, closes its doors ...The EPA for the first time categorizes
chloroprene as a likely carcinogen.'EPA conducts the most recent
National Air Toxic Assessment ...DuPont becomes the largest
emitter of chloroprene into
the air in the United States...DuPont sells the LaPlace
chemical plant to a new company...EPA makes the 2011
National Air Toxic Assessment public...EPA visits the Denka facility to
gather more information about
chloroprene production at the
plant and to understand what
air pollution controls are in place ...The EPA orders DuPont to
pay $37,500 in in civil fines ...Investigators send a draft report to the EPA's regional office.Denka says it will contest the draft report...DEQ signs a consent decree with Denka ...The EPA makes public the draft
report outlining more than 50
potential Clean Air Act violations at the plant.Denka challenges the EPA’s
risk-based assessment of chloroprene ...Thirteen St. John residents
sue Denka and duPont ...Layers representing the 13 plaintiffs
in a Denka lawsuit ask the EPA...Denka finishes a four-stage retrofitting,
outfitting its chloroprene facility ...EPA refuses to reclassify
chloroprene, despite Denka’s request ...Federal judge in New Orleans
denies class-action status for lawsuit...St. John School Board officials
say they're "joining forces" with
a local activist group ...Lydia Gerard, originally
among 13 plaintiffs who
filed suit against Denka in
2017, branches off to file
another suit in state court...EPA’s monitoring data show
levels of air pollution far
above federal recommendations ...Louisiana’s state health officer
tells St. John council that
chloroprene levels in the parish
should reach federal recommendation.Another 85 residents, including
lead plantiff Donna C. Jackson,
file a petition against Denka and
duPont for damages.Another 1,000 people,
including lead plaintiff
Leatrice W. Arlie, file a
lawsuit against Denka
and duPont for damages.Another 2,171 people, including
lead plaintiff and councilmember
Larry E. Sorapuru, Jr., file a lawsuit
against Denka and duPont for damages.St. John residents in lawsuit
filed against Denka in 2017
amend filing to cite specific
health problems ...Two more lawsuits are filed
against Denka and duPont...The families of 20 children
and young adults file a wrongful
death lawsuit against Denka
and two state agencies ...The parent of a student at
Fifth Ward Elementary School
in Reserve files a lawsuit against
the St. John school board...
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