|
3M submitted voluntary data on perfluorooctane sulfonates, including results from bacterial mutation and chromosome aberration tests, to the EPA as part of their ongoing dialogue regarding fluorochemicals.
|
2003 |
AR226-1781
|
v1eonYpbe2Ke54NV0r4ZdY418 |
1 |
|
This is a letterhead cover page from 3M, with no analytical content retained in the OCR.
|
2003 |
AR226-1781
|
o932DvEn2e64Jv7z211B528Lo |
1 |
|
The document reports on a study conducted by E.I. du Pont de Nemours and Company examining the age effect on plasma concentration of ammonium perfluorooctanoate in post-weaning rats following oral gavage, completed on December 15, 2003, in compliance with EPA Good Laboratory Practice Standards.
|
2003 |
AR226-1553
|
mp5vyYnL4xBOGr5kLMDMoX8e4 |
34 |
|
The document details a pharmacokinetic study conducted by E.I. du Pont de Nemours and Company and 3M Company on the lactational and placental transport of PFOA in rats, completed on December 19, 2003, in compliance with Good Laboratory Practice standards.
|
2003 |
AR226-1551
|
06dRoMnNoZp8G0q2Row0Z2ekR |
143 |
|
The report details a study conducted by 3M Company on serum concentrations of perfluorooctanoate (PFOA) and perfluorooctanesulfonate (PFOS) among 38 employees from the Cottage Grove plant, revealing that 11 participants had PFOA levels exceeding the Biologic Limit Value of 5 ppm, while PFOS levels were significantly lower,
|
2003 |
AR226-1781
|
ZJg0xZxeVyQ50wgpOwe6BxdXZ |
13 |
|
The document is a final report from 3M Company assessing the relationship between serum levels of perfluorooctanoate (PFOA) and lipid, hepatic, and thyroid function among its production workforce, revealing a geometric mean serum PFOA concentration of 0.85 ppm among male employees.
|
2003 |
AR226-1781
|
mmq4oDjRZwKnoYMDwRYyYrBKZ |
41 |
|
The report details a study conducted by 3M Company on serum concentrations of fluorochemicals, including PFOS and PFOA, among 54 employees from their Decatur, Alabama plant, finding that while PFOS levels remained stable, PFOA levels showed a decline, with none exceeding the biological limit value.
|
2003 |
AR226-1781
|
GmqYveJROK1RNzLZmkXO9g0V4 |
20 |
|
The document is a report from DuPont detailing the findings of chronic feeding studies in rats regarding proliferative lesions of the exocrine pancreas associated with ammonium perfluorooctanoate (PFOA).
|
2003 |
AR226-3630
|
KRO4LgdazMKnXVn58GEK8v3ao |
8 |
|
This document reports on a pharmacokinetic study of potassium perfluorooctanesulfonate (PFOS) conducted by Southern Research Institute for 3M Corporation, revealing that serum concentrations of PFOS in cynomolgus monkeys decreased rapidly within the first 24 hours post-administration but remained relatively constant until Day 70, after which they gradually declined.
|
2003 |
AR226-1781
|
JNm2aRjr3mxR8DbvmmDJ6qbev |
58 |
|
This document reports on a pharmacokinetic study of potassium perfluorohexanesulfonate conducted by Southern Research Institute on cynomolgus monkeys, revealing significant serum concentration levels and urinary excretion patterns following administration.
|
2003 |
AR226-1781
|
oeYMeoLJ6O4o8EZb1dY5Gx0y8 |
57 |
|
This document is a final report on a pharmacokinetic study of potassium perfluorooctanoate (PFOA) conducted on cynomolgus monkeys by Southern Research Institute for 3M Corporation, which found that serum concentrations of PFOA declined over time, with notable differences between male and female monkeys in the rate of decrease.
|
2003 |
AR226-1781
|
pmzv2x7zEGVJrMOYdw0ZNZrjB |
61 |
|
The document details a toxicity study on perfluorooctane sulfonate (PFOS) conducted by 3M, assessing its effects on various terrestrial plant species using artificial soil, with a purity of 86.9%, following EPA guidelines.
|
2003 |
AR226-1781
|
JrqjzZDBR5mMDbRxgXke6gz2B |
12 |
|
The document is a final report from the University of Dayton Research Institute detailing laboratory-scale thermal degradation studies of Perfluoro-Octanyl Sulfonate (PFOS) and related substances, conducted under the direction of 3M Environmental Lab from March 2001 to December 2002.
|
2003 |
AR226-1781
|
e773wN1jQgz7Lr7kg4ZdX5M39 |
159 |
|
3M is submitting additional data on perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and related compounds to the EPA as part of their ongoing dialogue, including organized studies and a redacted Protein Binding Study report.
|
2003 |
AR226-1781
|
2j6Z1R9B99rvabN9VoLvwRwag |
9 |
|
The document is a submission from the Telomer Research Program, representing companies including DuPont and Daikin Industries, to the EPA, providing a study report on the biodegradation of 14C-labeled 8-2 Telomer B Alcohol, with a request for the report to be restricted to "read-only" status until a related manuscript is published.
|
2003 |
AR226-1639
|
0yq0aBkYpxRKdwRmKjOdwZyb |
1 |
|
The document is a submission from Katie Smythe on behalf of the Telomer Research Program, including member companies such as DuPont, to the EPA, providing a study report on the ecotoxicity of C8-2 Alcohol based on a 21-day Daphnia magna reproduction test.
|
2003 |
AR226-1642
|
MM2mX3gKrexxXZQVYj6B5aB49 |
1 |
|
The document reports on a 21-day reproduction test of Daphnia magna using 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoro- (CAS RN 678-39-7) conducted according to OECD Guideline 211
|
2003 |
AR226-1643
|
NE3Yzy3EBDmgdR8NDervvJYjD |
4 |
|
The document reports on a 21-day Daphnia magna reproduction test conducted according to OECD Guideline 211 for the substance 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoro, sponsored by Asahi Glass, Clariant,
|
2003 |
AR226-1644
|
nmL0mY4dd6pxRNree1VD8ER91 |
54 |
|
The document is a correspondence from R. L. Ritchey of DuPont Washington Works to Ken Westfall of USA Waste regarding the disposal of up to 9,000 tons of non-hazardous railroad soil contaminated with PAHs, noting that preliminary analysis for PFOA is included without QA/QC.
|
2003 |
AR226-1672
|
44697LdgqNZoewYwO100DO1zV |
8 |
|
The document details an air quality dispersion modeling analysis of ammonium perfluorooctanoate (C8) emissions conducted by the DuPont Fayetteville facility, outlining the methodology, emissions inventory, and meteorological data used for the assessment.
|
2003 |
AR226-1673
|
mBowDjeN3JEp6gQVqOzpNgMo0 |
6 |
|
The document outlines the modeling methodology and results for ambient air concentrations of pollutants, specifically focusing on PFOA emissions from various scrubber systems at the Shimizu Site, utilizing the Industrial Source Complex Short Term 3 (ISCST3) model.
|
2003 |
AR226-1674
|
pe5yR3y1Ywk8pRrZRvdMJ7Yzk |
11 |
|
The document reports on a fluorochemical medical surveillance program conducted in 2003 for 30 employees at 3M's Antwerp manufacturing site, revealing serum PFOA concentrations ranging from 0.92 to 5.69 ppm, with two participants exceeding the company's biological limit value of 5 ppm, while PFOS concentrations showed a decrease compared to previous years.
|
2003 |
AR226-1781
|
jdmBga96xGZqwZZQQmdvbxo2 |
16 |
|
The document is a Good Laboratory Practice-compliant study report from Exygen Research, sponsored by 3M Environmental Technology and Safety Services, detailing the extraction of potassium perfluorooctanesulfonate (PFOS) from red blood cells and serum for analysis using HPLC-Electrospray/Mass Spectrometry.
|
2003 |
AR226-1781
|
KJKo2bnLebRVyj3MYZjBm9RQQ |
98 |
|
This document is a revised report by Mark E. Ellefson from the 3M Environmental Laboratory detailing the analysis of samples from the Tennessee River Valley, specifically focusing on perfluorinated compounds, as part of study #E02-0443.
|
2003 |
AR226-1781
|
qd8EKD405VVbKZy56z8DjVkZE |
276 |
|
The document is a final report on a combined repeated dose toxicity study of the test substance T-7706, which includes assessments of reproductive and developmental toxicity in male and female rats.
|
2003 |
AR226-1781
|
ym96DEGdwaQ0pKd0MNMNnkJMV |
769 |
|
This analytical report from Exygen Research details the characterization of water and sediment samples for perfluorinated compounds, specifically analyzing perfluorooctanoic acid (PFOA), perfluorooctanesulfonate (PFOS), and other fluorochemicals using liquid chromatography/tandem mass spectrometry (LC/MS/MS).
|
2003 |
AR226-1781
|
wgXVG5j5JwX5N45jKQD2BkVGo |
465 |
|
The document is an environmental and health assessment of perfluorooctane sulfonic acid (PFOS) and its salts, prepared by 3M in consultation with various experts, covering topics such as analytical methodology, environmental risk assessment, and human health risk assessment.
|
2003 |
AR226-1486
|
wDn4O1BM6kV7QRdXMVeRd4ddd |
638 |
|
The document is an environmental and health assessment of perfluorooctane sulfonic acid (PFOS) and its salts, prepared by 3M in consultation with various experts, focusing on analytical methodology, environmental risk, ecotoxicity, and human health risk assessments.
|
2003 |
AR226-1486
|
MGYYXgDwEGjGDjDQEGRaDa727 |
638 |
|
The document is an analytical phase report for a reproduction study on PFOS conducted with the Northern Bobwhite by 3M Environmental Laboratory, detailing compliance with TSCA GLP standards and noting exceptions in data collection and stability assessments.
|
2003 |
AR226-1832
|
QgxRqDKav4g7YaOy0q3bM297L |
4 |
|
The document details a study conducted by Exygen Research for 3M Environmental Technology and Safety Services on the extraction of potassium perfluorooctanesulfonate (PFOS) from red blood cells and serum using HPLC-Electrospray/Mass Spectrometry, ensuring compliance with EPA Good Laboratory Practice Standards.
|
2003 |
AR226-1833
|
2RvQXRDLNdYLQGN85LMxRgB9N |
98 |
|
The document is an environmental and health assessment of perfluorooctane sulfonic acid (PFOS) and its salts, prepared by 3M with input from various experts, focusing on analytical methodology, environmental risk, ecotoxicity, and human health impacts.
|
2003 |
AR226-1486
|
v1Nw2jeyDNwewaG4QROLLYwrq |
638 |
|
The document details a study conducted by Exygen Research for 3M Environmental Technology and Safety Services on the extraction of potassium perfluorooctanesulfonate (PFOS) from red blood cells and serum using HPLC-Electrospray/Mass Spectrometry, ensuring compliance with US EPA Good Laboratory Practice Standards.
|
2003 |
AR226-1857
|
OJa7Vr2D1XV1qp5MOXgg20R6K |
98 |
|
3M submitted a final report on a toxicity study of perfluorooctanesulfonate (PFOS) to the EPA, confirming results consistent with previously reported information.
|
2003 |
AR226-1781
|
ga3Z378LLVZnR7LYdjYqEBK4V |
1 |
|
3M submitted a final report to the EPA regarding an oral combined repeated dose toxicity study with reproductive/developmental toxicity screening test on perfluorohexane sulfonate potassium salt (PFHS), confirming results consistent with previously reported information.
|
2003 |
AR226-1781
|
0LgrpqGq017yL3Jz7nNRJm2ax |
2 |
|
The document is a Biennial Report submitted by DuPont for the year 2003 detailing emissions of perfluorooctanoic acid (PFOA) from its Washington Works facility, which reported 5,866 pounds emitted to air, 4,321 pounds discharged to water, and 41,503 pounds managed as waste.
|
2003 |
AR226-1877
|
pBNVqjxap5pwLjLpr2wN53gMa |
2 |
|
The document is a review of proliferative lesions in the exocrine pancreas of rats from two chronic studies involving ammonium perfluorooctanoate (PFOA) conducted by S.R. Frame and E.E. McConnell.
|
2003 |
AR226-3630
|
2Nq6rZ1Ve45J9QxzOd5Z5jjV6 |
1 |
|
Empty document.
|
2003 |
AR226-3630
|
5bJBrJYaGxjqLMrEY38knweXV |
1 |
|
The document is a final report on a combined repeated dose toxicity study of T-7706, which is likely related to perfluorinated compounds, detailing methods, results, and conclusions regarding its effects on male and female rats, including observations on mortality, body weights, and reproductive outcomes.
|
2003 |
AR226-1523
|
8ReKV1zG230K99ZJjVokD1em |
769 |
|
The document is a review of proliferative lesions in the exocrine pancreas of rats from two chronic feeding studies involving ammonium perfluorooctanoate (PFOA) conducted by DuPont.
|
2003 |
AR226-1920
|
7xy8w51EG05G37d6qVeyQzK6 |
8 |
|
The document outlines a review of the C-8 (perfluorooctanoic acid, PFOA) control program, emphasizing the need for environmental monitoring outside the plant boundaries and detailing specific administrative controls, protective equipment audits, and blood testing protocols for employees potentially exposed to C-8.
|
2003 |
AR226-2003
|
DMkb0d70j26L8MVV84v5bZpgN |
3 |
|
The document is an environmental and health assessment of perfluorooctane sulfonic acid (PFOS) and its salts, prepared by 3M in consultation with various experts, covering analytical methodology, ecological risk, and human health risk assessments.
|
2003 |
AR226-1486
|
dQDOooXQRERvYJJeDpa5xOXGR |
638 |
|
The document is a final report from Kurume Laboratory Chemicals Evaluation and Research Institute, Japan, sponsored by Daikin Industries, Ltd., detailing a biodegradation study of a perfluorinated compound (PFC) by microorganisms, conducted in compliance with OECD Good Laboratory Practice.
|
2003 |
AR226-2717
|
kDQjLg8E4Dpq8LrBpraMLGML0 |
128 |
|
The document presents emissions data related to PFOA from a DuPont facility, detailing reductions in both air and water emissions from 1999 to 2006, with significant reductions achieved in recent years.
|
2003 |
AR226-2731
|
Lpoa1XBYO1xea9krdjoEGKozX |
6 |
|
This is an internal email from Paul J. Bossert at DuPont regarding the scheduling of a meeting with the Ohio EPA on February 19, 2003, and requesting participation from Gerald L. Kennedy or Robert W. Rickard.
|
2003 |
AR226-2295
|
Rp1yw894zJ5zx76kYQV4YwM8n |
1 |
|
DuPont's statement addresses a January 7, 2003, letter from the Ohio EPA regarding concerns over ambient levels of C8 (PFOA) emissions, asserting that their own modeling does not support the EPA's findings and highlighting significant reductions in emissions from 2000 to 2002 due to equipment upgrades.
|
2003 |
AR226-2294
|
RJkBg1vGBByVpkJXXZjxbrEvX |
1 |
|
The document is an email from David M Rurak to various DuPont colleagues regarding the preparation for a conference call to discuss an upcoming meeting with the Ohio EPA related to PFOA.
|
2003 |
AR226-2296
|
zR651B0ap6n2nbrKZdEBy3on |
1 |
|
The document discusses the calculation of CEG (Concentration Exposure Guideline) levels for water and air at the Shimizu site, clarifying that air modeling will be conducted by Cathy Barton to compare air concentrations to the air CEG, while noting that the concentrations are too low for direct measurement.
|
2003 |
AR226-2297
|
Rp818KwRr0w5owREd5jJ4YMRv |
2 |
|
The document reports that DuPont's maximum annual prediction for actual 2002 emissions of PFOA is 1.36 µg/m³, occurring at the plant property.
|
2003 |
AR226-2300
|
RJQo8rwayzd3Ym3K41breVZ0X |
1 |
|
The document contains correspondence from Charles J. Zarzecki to Catherine A. Barton discussing snapshot results of PFOA emissions measured at 0.477 µg/m³ at a property line receptor, along with projected emissions for 2004 estimated at 0.443 µg/m³ at the same location.
|
2003 |
AR226-2301
|
716wnY0q9z3njeQVvxQy64LNa |
4 |
|
The document contains correspondence from Charles J. Zarzecki to Catherine A. Barton discussing maximum annual concentrations of PFOA in Ohio, reporting actual levels of 0.36 µg/m³ for 2002 and projected levels of 0.10 µg/m³ for 2004.
|
2003 |
AR226-2302
|
r6NYb24eE3vB0NZ7E57ZZLq4a |
6 |
|
This is a letter from the UW Department of Environmental Protection discussing air impact concerns related to ammonium perfluorooctanoate in Little Hocking, Ohio, addressed to Mr. Paul Bossert.
|
2003 |
AR226-2305
|
evae0GQD8addZ55zJY6obgxKG |
2 |
|
The correspondence discusses preparations for a meeting regarding C8 (PFOA) presentations, specifically requesting to highlight concentration areas on a map and to obtain exact concentration data from 2002 runs in Ohio.
|
2003 |
AR226-2306
|
1gykVymerRw443oQRVjYjeEYm |
1 |
|
The document discusses a March 2003 update regarding air emissions of C8 (PFOA) from DuPont's West Virginia facility, highlighting discussions about screening levels and permit limitations, with DuPont reporting a 50% reduction in emissions from 2000 levels and proposing a compliance plan.
|
2003 |
AR226-2308
|
zzVxD1n1qnLX52wXv7bdr0wVB |
1 |
|
This is an internal email from Mark C. Hause to David M. Rurak discussing the investigation of the ISC model's validity for specific time periods, with a suggestion to communicate directly with colleagues for future work.
|
2003 |
AR226-2309
|
99Q5vkKdBXvMgnD2w4QrN5Ko3 |
1 |
|
The correspondence discusses the potential discrepancies between modeled data and actual sampling results for PFOA, with Charles Zarzecki suggesting that actual sampling may yield lower numbers than the conservative ISC model, while Catherine Barton raises concerns about community sampling and its cost.
|
2003 |
AR226-2310
|
jmdNMbVn14j7MjBGJpVQpaN1Z |
1 |
|
The document discusses the need for real data from air monitoring related to carcinogenic hazardous air pollutants (HAPs) at the Edge Moor site, emphasizing the importance of validating ISC modeling predictions and providing cost estimates for ambient sampling to address public concerns.
|
2003 |
AR226-2311
|
eVpjwgpV39MDLxa98OdJVd84 |
1 |
|
The document reports that Charles J Zarzecki analyzed five years of data (1995-1999) for PFOA concentrations in Fayetteville, finding a maximum annual concentration of 0.00141 µg/m³ at the property line in 1997.
|
2003 |
AR226-2312
|
zzqRyBa1pOZb2RDYON6Z29YwR |
1 |
|
The document discusses the evaluation of the ISC Model Q for air quality modeling related to industrial emissions, with a focus on its limitations and appropriateness for regulatory use, as communicated among DuPont employees regarding modeling practices.
|
2003 |
AR226-2313
|
n9D4e6pDwm70qqaB9J8OyO9jR |
2 |
|
The correspondence discusses uncertainty in modeling results related to PFOA, with Charles Zarzecki expressing skepticism about the applicability of certain papers on Gaussian models to support their position on the variability of the findings.
|
2003 |
AR226-2316
|
rMzw8LB4dx490mG60O4dO8jv |
1 |
|
The document is a modeling report regarding emissions from the Washington Works facility, specifically related to PFOA, prepared by Debbie Mulrooney and shared by Charles J. Zarzecki.
|
2003 |
AR226-2317
|
mmQar1YQryz7dqewg6L2O2aEZ |
1 |
|
The document discusses concerns regarding the accuracy of Gaussian dispersion models in predicting PFOA emissions, highlighting potential overpredictions and suggesting improvements in modeling and data input to enhance regulatory compliance.
|
2003 |
AR226-2319
|
v6x23yev3qNnDJ7kz78EV6Lm6 |
1 |
|
The document details an air quality dispersion modeling analysis of ammonium perfluorooctanoate (C8) emissions from the DuPont Fayetteville facility, including methodology, emissions inventory, and meteorological data used for the study.
|
2003 |
AR226-2318
|
5bLL04MRmrVnwoLardzokz3pe |
4 |
|
The document discusses the need for dispersion modeling data related to emissions from basins in Environmental Treatment at DuPont, specifically focusing on whether the T O X C H E M model will generate an emission rate for perfluorinated compounds, with a deadline for submission set for April 11, 2003.
|
2003 |
AR226-2320
|
2Y2Kd7QgOD5qkjjeN5KX71pr |
1 |
|
The document is a request from Ann K Masse at DuPont for data related to air dispersion modeling and a mass balance analysis of PFOA in the DDE and DFS processes, with a deadline for submission by April 11, 2003.
|
2003 |
AR226-2321
|
XReyex3yn2LXMvY38b44njvgB |
2 |
|
The document discusses the need for additional influent and sorption kinetic data related to PFOA to finalize the ToxChem model for dispersion modeling at DuPont, with a deadline set for April 11, 2003.
|
2003 |
AR226-2323
|
rxBr69Ly81akzQGJ6gVBg8yLr |
2 |
|
The correspondence discusses the timeline and planning for wastewater sampling and emissions modeling related to PFOA at DuPont, indicating that definitive ambient air dispersion modeling results will take time to achieve.
|
2003 |
AR226-2322
|
3e6Dpq8oZeZar8wrMxLqzLo5n |
2 |
|
The correspondence discusses the development of input parameters for modeling PFOA emissions from wastewater treatment tanks, indicating that partitioning work and modeling efforts are separate but related tasks being managed by different teams at DuPont.
|
2003 |
AR226-2324
|
Kz6rqV32g51K8op5m6RwYE0nw |
3 |
|
The document provides data on air dispersion modeling for DuPont Dow's C8 (perfluorooctanoic acid, PFOA) release to the atmosphere, detailing a typical 96-hour campaign with varying release rates and operational forecasts for the plant.
|
2003 |
AR226-2325
|
yp4v34KmBvYLQm9QjMnanqan2 |
1 |
|
This is an email from John W. Milroy III to several DuPont colleagues discussing data for air dispersion modeling, noting a stack height of 25 feet and that the building operates in all seasons.
|
2003 |
AR226-2326
|
4QYpqj2x9J0RnadkQN78EZVLp |
1 |
|
The document is an email from Irene A. Legiec to several DuPont colleagues discussing the need for additional data on the physical and chemical properties of a compound of interest, likely related to PFOA or PFOS, to conduct emissions analysis using ToxChem.
|
2003 |
AR226-2329
|
15EYEM4OX8O8MQLdK0veaeK1j |
1 |
|
The document outlines the final sampling plan for assessing PFOA levels in wastewater outfalls and the Delaware River, detailing sampling locations, types, and parameters to be analyzed, including TSS and TOC, with a focus on effluent and river samples from DuPont facilities.
|
2003 |
AR226-2328
|
JJJM60M0pY4mwmg6076K7be3e |
3 |
|
The document outlines the dispersion modeling protocol for assessing ambient air concentrations of C8 emissions from the DuPont Chambers Works facility in Deepwater, New Jersey, detailing the necessary emissions inventory and the use of the ISCST3 model as recommended by the U.S. EPA.
|
2003 |
AR226-2330
|
YrNpgmwjxyL1wLDOJm6kd5o5y |
4 |
|
The document discusses modeling results related to PFOA concentrations at a property line, indicating that the maximum predicted concentration remains at 1.36 µg/m³, consistent with previous results, and notes that plume depletion is negligible due to short travel distances and small particle sizes.
|
2003 |
AR226-2332
|
JNyDzwjQpyznr4BDXKedBvpbO |
2 |
|
The document discusses a meeting organized by Ann K Masse for the DuPont environmental sampling mass balance team to review the status of air modeling related to PFOA, indicating a shift in business communications regarding the inclusion of recycle operations in their model.
|
2003 |
AR226-2335
|
GKzQB7LdGNy0m4RbD56JYYJDV |
1 |
|
The document outlines the modeling methodology and results for ambient air concentrations of pollutants, specifically focusing on emissions from DuPont's Shimizu site, utilizing the Industrial Source Complex Short Term 3 (ISCST3) model to assess PFOA emissions based on various input parameters.
|
2003 |
AR226-2336
|
ppDZ1K160NmRKdbykVxpb7Yy6 |
11 |
|
The document outlines the agenda and commitments of the Fluoropolymers Monitoring Technical Group regarding the reduction of emissions from the manufacture of APFO (Ammonium Perfluorooctanoate), highlighting a >99% reduction in emissions through air dispersion modeling and water monitoring, as well as ongoing commitments to not sell APFO outside the fluoropolymer industry.
|
2003 |
AR226-2338
|
kaapmQ9MBpnXqOQvep4jqoRNO |
13 |
|
The document outlines the agenda for a Fluoropolymers Monitoring Technical Group meeting, discussing the EPA's suggested priority changes, monitoring commitments, and significant reductions in emissions (over 99%) related to the manufacture of ammonium perfluorooctanoate (APFO) through air dispersion modeling and water monitoring.
|
2003 |
AR226-2339
|
x57jgRoN0vwRQzbjZap93Zzm1 |
41 |
|
DuPont Fluoroproducts submitted a follow-up report to the EPA detailing air dispersion modeling results for PFOA emissions from their Washington Works facility, indicating a reduction in emissions due to the installation of a new secondary recovery scrubber.
|
2003 |
AR226-2342
|
71GxD6Q2bnE6MEkQEVz0ZJ5o8 |
2 |
|
The document outlines an air dispersion modeling verification study aimed at comparing ambient air sampling results with modeling predictions for PFOA concentrations, detailing the sampling strategy, locations, and methods used for analysis.
|
2003 |
AR226-2346
|
V3N7OV3kgoNk32aqXDB65xrZZ |
21 |
|
The document discusses the relevance of soil sampling in site screening level assessments for PFOA, indicating that soil sampling is not critical for evaluating overall human and environmental exposure at PFOA use facilities, and emphasizes the importance of focusing water monitoring on site boundaries and discharge points.
|
2003 |
AR226-2347
|
ojRj5dD1zYYmnw0kEQ5aqjQw |
9 |
|
The document discusses site screening level assessments for PFOA, focusing on the relevance of soil sampling and presenting laboratory studies and field sample verification results related to PFOA behavior in water and soil, particularly from the Washington Works and Little Hocking Water Association investigations.
|
2003 |
AR226-2345
|
zd1xMvb823bjLdrYrbG4o51VR |
32 |
|
The document is a report detailing the results of a sampling investigation conducted by DuPont in August 2002 to assess ammonium perfluorooctanoate (C-8) concentrations in soil and groundwater near monitoring well TW-4 in the Little Hocking Water Association Well Field, revealing significantly elevated C-8 levels compared to surrounding wells and prompting further investigation by the Ohio EPA.
|
2003 |
AR226-2348
|
pm3Jq9kOeX0Kbm1z5Lo3Dw23j |
5 |
|
The document contains EPA's comments on DuPont's proposed air modeling approach using ISCST3 to determine groundwater sampling locations for PFOA monitoring, emphasizing the need for soil sampling verification rather than relying solely on air sampling.
|
2003 |
AR226-2349
|
wgRk6ZzLK5yy6NQgVyE496QO6 |
6 |
|
The document outlines a proposed Memorandum of Understanding between the Ohio EPA, West Virginia DEP, and DuPont to continue monitoring C8 (PFOA) concentrations in groundwater and surface water, based on recommendations from the GIST report, with activities scheduled to begin in the first quarter of 2004.
|
2003 |
AR226-2350
|
2R39qnoV1Y3w7QRw3QY4eeQMa |
38 |
|
This is a fax cover sheet from DuPont Fluoroproducts transmitting a letter to the Ohio EPA regarding DuPont's agreement to conduct additional investigations near the Licking Hocking Water Association well field.
|
2003 |
AR226-2351
|
oewmQ4ed1bEkZGdp05rzdRr2D |
3 |
|
The document is the Third Quarter 2003 monitoring report for C-8 (PFOA) in surface water and groundwater at the Washington Works facility and local landfills in Washington, WV, detailing analytical results and monitoring well data.
|
2003 |
AR226-2523
|
06ZvM4aJzYOxq3kbz98Rbda0n |
69 |
|
The document reports on the results of the Corrositex In Vitro Test (Study H-25537) conducted by E.I. du Pont de Nemours and Company to evaluate the skin corrosion potential of a substance, which is part of their assessment for regulatory compliance regarding corrosive packing groups.
|
2003 |
AR226-2806
|
70p6z3LGreyVx1Dw5pDRV5v86 |
9 |
|
The document reports that the substance H-25538, tested using the In Vitro International Corrositex assay by DuPont, was found not to be corrosive as it did not pass through any membranes during the evaluation.
|
2003 |
AR226-2807
|
xzjbne1Md29VGmoYenNnX2Lym |
9 |
|
The document reports on a static, acute 96-hour toxicity screening test of the substance H-24750, conducted by E.I. du Pont de Nemours and Company on the rainbow trout, Oncorhynchus mykiss, to evaluate its acute toxicity.
|
2003 |
AR226-2809
|
ZBr3OgG31Zr7z3K0vJGK8Lzr8 |
8 |
|
The document reports on a study conducted by DuPont to evaluate the influence of the substance H-24750 on the growth and growth rate of the green alga Selenastrum capricomutum, with algae exposed to various concentrations of H-24750.
|
2003 |
AR226-2810
|
em50xqXEaQjwR4DX64dM279m9 |
20 |
|
This document is a review of proliferative lesions in the exocrine pancreas observed in two chronic feeding studies in rats exposed to ammonium perfluorooctanoate (PFOA) conducted by DuPont researchers.
|
2003 |
AR226-2811
|
ga9Xjjmbewv8KdaevEbyJLZMa |
8 |
|
The document is a biopersistence screening study report conducted by DuPont on the oral gavage of rats, evaluating the effects of a perfluorinated compound, with the study completed on April 7, 2003.
|
2003 |
AR226-2808
|
xxM46DOOQ9M49NKNYbRBq0Lm |
82 |
|
The document reports on a study conducted by DuPont examining the relationship between repeated inhalation exposures to perfluorooctanoic acid (PFOA) and plasma PFOA concentration in rats, completed on November 5, 2003, in compliance with Good Laboratory Practice standards.
|
2003 |
AR226-2812
|
oDRq54erDneZ92QZ4RojggO3o |
56 |
|
The document reports on a study conducted by E.I. du Pont de Nemours and Company examining the age effect on plasma concentrations of Ammonium Perfluorooctanoate in post-weaning rats following oral gavage, completed on December 15, 2003.
|
2003 |
AR226-2813
|
pmQ3VQrLByZKLQNoVByv24KLE |
34 |
|
The document is a revised groundwater flow model report for the DuPont Washington Works in Washington, WV, detailing the hydrogeological setting and calibration results relevant to the assessment of groundwater movement potentially impacted by perfluorinated compounds.
|
2003 |
AR226-2598
|
7Rw1ry0v8j0KoLr8RRexeyVL8 |
56 |
|
The document discusses the progress of soil sample analysis related to PFOA at Little Hocking, indicating that quality control issues have been resolved and draft results are expected by late February 2003, with final results anticipated by mid-March.
|
2003 |
AR226-2599
|
g2Rwm16ZBe81oaveEb0XNejJN |
2 |
|
DuPont responds to the Ohio EPA's request for additional investigation regarding PFOA sampling at the Little Hocking Water Association well field, agreeing to conduct surface soil and groundwater monitoring while proposing enhancements to the sampling plan.
|
2003 |
AR226-2612
|
G5woQvjz58mYmDo34yYZzJMGm |
2 |
|
The document outlines the results of a sampling investigation conducted by DuPont in August 2002 to assess ammonium perfluorooctanoate (C-8) concentrations in soil and groundwater at the Little Hocking Water Association Well Field in Washington County, Ohio, revealing elevated C-8 levels in monitoring well TW-4.
|
2003 |
AR226-2611
|
3REXxz98xBkeawRmQ98oNNyJ |
5 |
|
The document presents the results of a sampling investigation conducted by DuPont and URS Diamond at the Little Hocking Water Association well field in Washington County, Ohio, focusing on the presence of C-8 (PFOA) in groundwater and soil samples.
|
2003 |
AR226-2610
|
JNRXJ2ODEznRyd2nBpjrODdwB |
41 |
|
Empty document.
|
2003 |
AR226-3632
|
52eqQQ7D7210edvBbKxmbm90 |
1 |