From: To: Sent: Subject: Attachments: Murtha, Veronica E CIV NAVSEA, SEAOOL Hunstad, Mary P CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 12/16/2016 4:43:59 PM GAO 100947 FOLLOW-UP_QUESTIONS.docx GAO 100947 FOLLOW-UP QUESTIONS.docx smime.p7m Mary, Do we hve answers for these questions?

Federal Register/Vol. 80, No. 13/Wednesday, January 21, 2015/Proposed Rules 2885 Table 2 to Subpart JJJJJJ of Part 63-- Work Practice Standards, Emission Reduction Measures, and Management Practices-- Continued If your boiler is in this subcategory .

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3M Environmental Laboratory AR116- ooz^ k) M ethod Analysis of Potassium Perfluorooctanesulfonate or O ther Fluorochemical Compounds in Urine E xtracts U sing H PL C -E lectrospray/M ass Spectrometry/M ass Spectrom etry Method Number: ETS-8-97.0 Adoption Date: Author: Lisa Clemen, Robert Wynne, Glenn Langenburg Revision Date: Approved By: Laboratory Manager Group Leader ------ _ 7 / u /y 5 Date f/Z-37# Date - A C iu m -____________________ ______________________ Technical Reviewer Date 1.0 Scope and Application_________________________________________________ 1.1 Scope: This method describes the analysis of urine extracts for fluorochemicals using HPLC-electrospray/mass spectrometry. 1.2 Applicable Compounds: Fluorochemicals or other ionizable compounds. 1.3 Matrices: Human, rat, and monkey urine, or other fluids as designated in the validation report.

CLIENT PRIVATE AF26-OI6I fk -- PROTOCOL TITLE: Range finding Cytotoxicity Assay of T-6292, T-6293, T-6294, T-6295 in R at Hepatocytes SRI Study No.

3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Protocol for Study No.

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES BACK TO COMPOUNDS STUDY TITLE LABORATORY OR DATE AUTHOR COMPLETED TYPE Physical/Chem ical Properties S o lu b ility o f P e rflu o ro -1 - o c ta n e s u lfo n y l F lu o rid e (P O S F ) in W a te r Environm ental Fate andTransport 3M Environm ental Lab 06/12/01 Robust sum m ary, final report Indirect Photolysis of G aseous Perfluorooctane Sulfonyl Fluoride (PO SF) by Fourier Transform Infrared (FTIR) Spectroscopy 3M Environm ental Lab 06/12/01 Robust sum m ary, final report

3M Environmental Laboratory R126-0005 M ethod A nalysis of Potassium Perfluorooctanesulfonate or O ther Fluorochemicals in Serum Extracts U sing H PLC-Electrospray/M ass Spectrometry Method Number: ETS-8-5.1 Author: Lisa Clemen, Robert Wynne Approved By: 'L l Laboratory Manager Adoption Date: 03/01/99 Revision Date: <V / 2 C / Date Group Leader Technical Reviewer Date dh i / m Date 1.0 S c o p e a n d A p p l ic a t io n __________________________________________________________________ 1.1 Scope: This method describes the analysis of serum extracts for fluorochemical surfactants using HPLC-electrospray/mass spectrometry. 1.2 Applicable Compounds: Fluorochemical surfactants or other fluorinated compounds, or other ionizable compounds. 1.3 Matrices: Rabbit, rat, bovine, monkey, and human serum, or other fluids as designated in the validation report.

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A R 1 U -0 1 5 I Laboratory Report Interim Report of Preliminary Data for 26 Week Capsule Toxicology Study with PFOS in Cynomolgus Monkeys Laboratory Report No.

ACUTE TO XIC ITY TO FISH (M UM MICHOG) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780. (1Octanesulfonic acid) (CAS # 2795-39-3).