., .7=111W 111111111,4 4 1' To: Terri Zick <tzick@cticompanies.com > Cc: Kathy Wilson <kathywilson@owossographic.com >, Todd Ramaly/R5/USEPA/US@EPA Bcc: Subject: Re: FW: Submittal of Requested NMP Data From: Christopher Lambesis/R5/USEPA/US - Tuesday 09/28/2010 03:49 PM _„....„„______________„„..--_,,........„________—_____,„, ,..._...„..,,... , „ „„._.‘,„,„.„,,,,,...._. .,<„, .,,.„. Terri, Thank you for submitting the additional information. As you know, we are are trying to determine a conservative analytical concentration of NMP in the waste samples. I feel we have exhausted our review of the NMP analysis and at this point we will require one last calculation submittal from the laboratory . We found that there is evidence that the chromatographic peak just before the first internal standard may be a derivative of the NMP analyte. Can you have the laboratory integrate this peak (approximately retention time 7.825 min.) for all four of the composite samples. Please submit these calculations in the same format as the last submission. • It looks like this may double the concentration of NMP in the samples but that these results will still be well below the DRAS limits. Please let me know if you have any questions. -Chris

Christopher Lambesis Environmental Scientist U.S EPA Region 5 Land and Chemicals Division (312) 886-3583 Terri Zick Gentlemen- Are there any questions regarding ... 09/24/2010 12:42:08 PM From: Terri Zick <tzick@cticompanies.com > To: Christopher Lambesis/R5/USEPA/US@EPA, Todd Ramaly/R5/USEPA/US@EPA Cc: Kathy Wilson <kathywilson@owossographic.com > Date: 09/24/2010 12:42 PM Subject: FW: Submittal of Requested NMP Data

GentlemenAre there any questions regarding this last data submittal? I will be available all day if questions arise. We will do whatever we can to assist in reaching your goal of a 9/30/10 completion date. Thanks Terri Zick 313-300-7401 cell tzick@cticompanies.com

CTI and Associates, Inc. 51331 W. Pontiac Trail, Wixom, MI 48393 248.486.5100 Phone I 248.486.5050 FaxOriginal Message

From: Terri Zick Sent: Thursday, September 23, 2010 11:12 AM To: 'Lambesis.Christopher@epamail.epa.gov ' ; 'Ramaly.Todd@epamail.epa.gov ' Cc: 'Kathy Wilson' Subject: FW: Submittal of Requested NMP DataGentlemenI am hopeful that this satisfies your remaining need for back-up documentation for the delisting. Please let me know as soon as possible if there are other needs prior to publication. Thank you

Terri Zick 313-300-7401 cell tzick@cticompanies.com

CTI and Associates, Inc. 51331 W. Pontiac Trail, Wixom, MI 48393 248.486.5100 Phone I 248.486.5050 Fax

Original Message From: Rick Wilburn [mailto:wilburnr@trimatrixlabs.com] Sent: Thursday, September 23, 2010 10:49 AM To: Lambesis.Christopher@epamail.epa.gov Cc: Ramaly.Todd@epamail.epa.gov ; Terri Zick; 'Gary Wood' Subject: RE: Requested NMP Data Chris, Here are the requested spectra and areas for sample 1003151-03. Rick Original Message From: Lambesis.Christopher@epamail.epa.gov [mailto:Lambesis.Christopher@epamail.epa.gov] Sent: Wednesday, September 22, 2010 3:03 PM To: wilburnr@trimatrixlabs.com Cc: Ramaly.Todd@epamail.epa.gov ; tzick@cticompanies.com ; Gary Wood Subject: Re: Requested NMP Data Rick, Thanks for this data. One last request, can you send me the same chromatogram and ion abundance scans for sample 1003151-03, peaks at RT 7.82 and RT 8.42 minutes? Thanks. -Chris
Christopher Lambesis Environmental Scientist U.S EPA Region 5 Land and Chemicals Division(312) 886-3583

From: "Rick Wilburn" <wilburnr@trimatrixlabs.com >

To: <tzick@cticompanies.com >, <Lambesis.Christopher@epamail.epa.gov >, <Ramaly.Todd@epamail.epa.gov >

Cc: "Gary Wood" <woodgl@trimatrixlabs.com >

Date: 09/22/2010 12:46 PM

Subject: Requested NMP Data

Attached please find the requested NMP data. Rick

Rick D. Wilburn I

Quality Assurance Manager I I

I (Embedded image moved to file: pic02980.jpg)

Corporate/ Laboratory Main: 616-975-4500

5560 Corporate Exchange Direct: 616-940-4246
Court SEGrand Rapids, Michigan Fax: 616-942-7463

49512

wilburnr@trimatrixlabs.com www.trimatrixlabs.com

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[attachment "NMP TICS 4.PDF" deleted by Christopher Lambesis/R5/USEPA/US]
The information contained in this electronic message is privileged and/or confidential information intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any dissemination, distribution or copying of the communication is neither allowed nor intended. If you have received this communication in error, please immediately notify us by return e-mail or by calling 800-CTI-TODAY and delete the message. Thank You! [attachment "NMP TICS 5.PDF" deleted by Christopher Lambesis/R5/USEPA/US]