P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 09/01/2009 11:30 AM To NCIC OPPT@ EPA cc "Bilott, Robert A."

P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 11/02/2009 11:42 AM bcc Subject 11/02/2009 Letter To EPA Docket Center i 3 ^i0:35 Taft / Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@taftlaw.com Internal Revenue Service Circular 230 Disclosure: As provided for in Treasury regulations, advice (if any) relating to federal taxes that is contained in this communication (including attachments) is not intended or written to be used, and cannot be used, for the purpose of (1) avoiding penalties under the Internal Revenue Code or (2) promoting, marketing or recommending to another party any transaction or matter addressed herein.

Prep Run#: 105742 Team: Petroleum HC/SMCDONALD Number of Copies to make: 1 # Lab Code Client ID 1 K1001011-001 Hagler W ell" Raw" 2 K1001011-020 Royce Street "Treated" 3 K1001011-019 Royce Street "Raw" 4 K1001011-018 Villa "Treated" 5 K1001011-017 Villa "Raw" 6 K1001011-016 Muldoon "Treated" 7 K1001011-015 Muldoon "Raw" 8 K1001011-014 Tennant `Treated" 9 K1001011-013 Tennant "Raw" 10 K1001011-012 Broad "Treated" 11 K1001011-011 Broad "Raw" 12 K1001011-010 Humphrey "Treated" 13 K1001011-009 Humphrey "Raw" c 4 K1001011-008 K1001011-007 McAllister "Treated" McAllister "Raw" 16 K1001011-006 Airport North "Treated" 17 K1001011-005 Airport North "Raw" 18 K1001011-004 Spanish Trail "Treated" 19 K1001011-003 Spanish Trail "Raw" 20 K1001011-002 Hagler W ell" Treated" 21 KQ1000664-03 ` K1001011-007 MS 22 KQ1000664-04 ' K1001011-007 DMS 23 KQ1000664-01 J K1001011-008 MS 24 KQ 1000664-02 J- K1001011-008 DMS 25 KQ1000664-05 ^ LCS 26 KQ1000664-06 .J MB t*reparation information encnsneet Prep WorkFlow: OrgExtAq(14) Prep Method: Method Status: Prepped Prep Date/Time: 2/9/10 07:34 AM B# Method /Test .01 PFOATFOA .02 PFOA/PFOA .01 PFOA/PFOA .02 PFOA/PFOA .01 PFOA/PFOA .01 PFOATFOA .02 PFOAPFOA .01 PFOA'PFOA .01 PFOAPFOA .01 PFOA'PFOA .01 PFOATFOA .01 PFOATFOA .02 PFOATFOA .01 PFOATFOA .02 PFOATFOA .01 PFOATFOA .02 PFOAPFOA .02 PFOAPFOA .01 PFOATFOA .01 PFOATFOA .02 PFOAPFOA .02 PFOATFOA .01 PFOATFOA .01 PFOAPFOA PFOAPFOA PFOAPFOA PH Matrix W'ater Water Water Water Water Water Water Water Water Water Water Water W'ater Water Water Water Water Water Water Water Liquid Liquid Liquid Liquid Liquid Liquid Amt.

P- 1 Faft/ Taft Stettinius & Hollister LLP 425 W alnut Street, Suite 1 8 0 0 /Cincinnati, OH 45202-3957/Tel: 513.381.2838/Fax: 513.381.0205/www.taftlaw.com Cincinnati / Cleveland / Columbus/ Dayton / Indianapolis / Northern Kentucky/ Phoenix / Beijing Robert a .

AP.&26 _ oG6 PFOA Acute Toxicity - X 000837 I?

AR.A3.6 - 07^6 A C T IV A T E D S L U D G E R E S P IR A T IO N IN H IBITIO N T E S T T E S T S U B S T A N C E ___________________________________________________ Identity: A mixture containing perfluorooctanesulfonate; m ay a lso be referred to a s P F O S , FC-95, or a s a com ponent of F C -2 0 3 C and L-5440. (1-Octanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) R e m arks: The 3M production lot num ber w as 501.

R a .6 _ 0 7 5 5 MICROBIOS M ICROTOX TO XIC ITY TEST TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

M za.6 - 0 7 9 7 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: Mixture containing Perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR.A2.6 _ 0SS6 TO XICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-3003. (1Octanesulfonic acid) (CAS # 2795-39-3).

- Olo^i ACUTE TO XICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-3052. (1Octanesulfonic acid) (CAS # 2795-39-3).

Ms&AG - iZICf Overview o f the Mechanics o f Film Formation o f AFFF Aqueous film-forming foam (AFFF) generally contains mixtures of hydrocarbon and fluorocarbon surfactants as the major surface-active components.

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6 0 P- 31 October 2003 AR226-1642 To: Mary F.

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