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DEKLEVA, LYNN ANN [Lynn-Ann.Dekleva-l@dupont.com] 8/7/2017 2:56:56 PM Beck, Nancy [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=168ecb5184ac44de95a913297f353745-Beck, Nancy] Polymer Exemption Technical Contact Request
Nancy, I am trying to fi nd a contact at the agency to have a techni cal di scussi on on the defi ni ti on of
"degradati on" for Polymer Exempti o n s . I tri ed submi tti ng my questi on through the normal channel s but ended up hi tti ng a dead e n d . Can you provi de a contact? Thanks for your help.
Regards, Lynn
Lynn Ann Dekleva, PhD Product Stewardshi p & Regulatory Senior Consultant
DuPont Chestnut Run Piaza 702/2304F 974 Centre Road Wi1mi ngton, DE 19805
Ex. 6
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-----Origi nal Message----From: DEKLEVA, LYNN ANN Sent: Wednesday, July 12, 2017 1:28 PM T o : Schtz, Davi d <Schutz.David@epa.gov> Cc: Edelstei n , Rebecca <Edel stein.RebeccaOepa.gov>; Ross, Adam -cross.adamOepa.go v>; Lee, Doyoung <Lee.DoyoungOepa.g o v>; Anapol1e , Kent <Anapolle.Kent@epa.gov> Subject: RE: Form submi ssi on from: Revi ewi ng New Chemi cal s under the Toxi c Substances Control Act (TSCA) Revi ewi ng New Chemi cals under TSCA Contact Us form
Dave, I have revi ewed the regulati on and responses to inqui ri es regardi ng degradati o n . The intent of the biodegradation exclusi on for the polymer exempti on was for polymers that undergo substanti al degradati on under normal condi ti ons of use or di sposal. In thei r di scussi o n , the Agency acknowledged that essentially al1 polymers degrade or decompose to a 1imi ted degree over ti me and gave examples of polymers in 1andfi11s and stated that the exclusi on was not intended to address such degradati o n . If the polymer is designed or reasonably antici pated to substantially degrade then they would be excluded from the polymer exempti o n . Substanti al bi odegradati on in a waste treatment system (readi1y bi odegrabi1ity test whi ch si mulates a waste water treatment pi ant) would render a polymer inel igi bl e for the exempti o n . The questi on I have is: to assess the degradabi1ity of a polymer for potenti al polymer exempti o n , a reasonable assessment would be the Readily biodegradabi1ity test? Aerobic composting is not a reasonable assessment of the degradabi1ity potenti al of the materi als for the polymer exempti on si nee thi s method of di sposal generally are restri cted to y a rd, food and farm wastes wi th only a smal1 amount of industri al wastes reported to be composted. The fate of the materi al in 1andfi 11s will inform the cradle to grave assessment and potenti al fate of the material but should not be used to assess the materi al for polymer exemption.
Regards, Lynn
Lynn Ann Dekleva, PhD Product Stewardshi p & Regulatory Senior Consultant DuPont Chestnut Run Piaza 702/2304F 974 Centre Road Wi1mi ngton, DE 19805
EX. 6 (cell)
-----Ori gi nal Message----From: Schtz, David [mai1t o :Schtz.David@epa.gov] Sent: Wednesday, July 12, 2017 12:02 PM T o : DEKLEVA, LYNN ANN <Lynn-Ann.Dekleva-l@dupont.com> Cc: Edelstei n , Rebecca <Edelstein.RebeccaOepa.g o v>; Ross, Adam -cross.adam@epa.gov>; Lee, Doyoung <Lee.DoyoungOepa.g o v>; Anapol1e , Kent <Anapol 1e .Kent@epa.gov>
Sierra Club v. EPA 18cv3472 NDCA
Tier 7
ED 002061 00043132-00001
Subject: [EXTERNAL] RE: Form submission from: Reviewing New Chemi cals under the Toxic Substances Control Act (TSCA) Revi ewi ng New Chemi cal s unde r TSCA Contact Us form
Can you 1et me know a 1ittle more about your concerns? We have written some letter responses to inqui ri es about degradati o n , and I 'd like to see of text from them can be hel pful for y o u . Dave Schtz
-----Origi nal Message----From: drupal_admin@epa.gov [mai1t o :drupal_admin@epa.gov] Sent: Wednesday, July 12, 2017 11:36 AM T o : Schtz, Davi d <Schutz.Davi d@epa.gov> Subject: Form submi ssi on from: Revi ewi ng New Chemi cals under the Toxi c Substances Control Act (TSCA) Revi ewi ng New Chemi cal s under TSCA Contact Us form
Submitted on 07/12/2017 11:35AM Submitted values are:
Name: Lynn Dekleva Emai1: lynn-ann.dekleva-l@dupont.com Comments: I would 1ike to have a techni cal di scussi on on the defi ni ti on of degradati on for the Polymer Exempti o n . The guidance document does outline that extensive degradati on would make the materi al ineli gi ble for the polymer exempti o n . Can you pi ease provi de a contact wi thi n the agency with whom I can set up a meeti ng? Thanks Web Area: Revi ewi ng New Chemi cals under the Toxi c Substances Control Act (TSCA)
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Sierra Club v. EPA 18cv3472 NDCA
Tier 7
ED 002061 00043132-00002