DuPont Corporate Remediation Chestnut Run Plaza, Building 715 4417 Lancaster Pike



### DocketNo. OPPT-2004-0113 EPA-DuPontMOU 

# 2012

# s:.: -7 K:·i 

# !0: 58 September 10, 2012 

# SEP 12 

# 2012 September 10, 2012 Director, Chemical Control Division (7405M) Room 4146EPAEast U.S. Environmental Protection Agency 1201 Constitution Avenue, NW Washington, DC 20004 202-564-4760

Attn: EPADocketID Number OPPT-2004-0113 Document Control Office Office ofPollutionPrevention and Toxics 

### EPAEast, Room 6428 U.S. Environmental Protection Agency 1201 Constitution Avenue, NW Washington, DC 20004 202-564-8930

Memorandum ofUnderstanding (MOU) between the U.S. Environmental Protection Agency (EPA) andE. I. 

### DuPont de Nemours and Company (DuPont) for a Perfluorooctanoic Acid (PFOA) Site-RelatedEnvironmental AssessmentProgram (November 3, 2005) Re: Table 2.2- Quarterly MOU Status Report#5 Phase III- 

### Future WorkPlan, DuPont WashingtonWorks (May 3, 2012)

Dear Sir/Madam: The Quarterly MOU StatusReport#5 Phase III- 

### Future WorkPlan was submitted on May 3, 2012, in accordance with Section V.F.2 ofthe above-identified MOU. A footnote for Table 2.2 was inadvertently omitted which states that only two ofthe 65 produce samples collected in Ohio had measurable concentrations ofPFOA, with the concentrations as shown in the table. The other 63 produce samples collected in Ohio were non-detect with the limit ofdetection ranging from 0.44 ug/kg to 0.52 ug/kg. This footnote has been addedto Table 2.2, which is attached in hard copy. In 

### addition, a digital copy ofthis table is also attached. If

### you need any additional information orfurther clarification, please contact me (302-999-6197) orJenny Liu (302-999-3628). Very truly yours,

AndrewS. Hartten Principal Remediation ProjectManager Attachment:

Page 1of 1 Hard and digital copy ofTable 2.2 for the Quarterly MOU Status Report#5 Phase III

### May 3, 2012

OPPT-2004-0113 PFOA Site-RelatedEnvironmental AssessmentProgram 

# ctjI

# ·:2/\2., 

# GONTAINS NO CBI**P~<\**

### Untreated 

### Table 2.2 Phase Ill Multi-media Sampling Results, Ohio Quarterly MOU Status Report #5 Phase Ill- Future Work Plan DuPont Washington Works (OPPT-2004-0113)

Irrigation water

### 1------___;~~----...;;.;....;;...._-t--------+---------1

Soil*

Produce** "

*All soil results are dry weight corrected. **All tissue results are "as received." " Only two ofthe 65 produce samples collected in Ohio had measurable concentrations of PFOA, with the concentrations as shown in the table. The other63 produce samples collected in Ohio were non-detect with the limit of detection ranging from 0.44 ug/kg to 0.52 ug/kg. ***Produce and beeftissue samples were analyzed as tissues and reported as PFOA by Axys. The perfluoroctanoate ion (PFO-) is detected by the instrument during analysis. PFOA results were not converted to APFO results and tissue samples were not reported as APFO because it is not expected that the perfluorooctanoate ion exists in tissues as APFO.

09/06/12 1 of 1 Table 2.2From: (302) 781-5930 Fran McCrear URS Diamond 4051 Ogletown Rd, Suite 300 Newark, DE 19713 Origin ID: ILGA

J12201207160325 SHIP TO: (202) 564-8930 BILL SENDER 

### US Environmental Protection Agency Doc Control Office P Pand Toxics 1201 CONSTITUTION AVE NW WASHINGTON, DC 20460

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### Page 1of 1



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