FW: Conference Call Follow Up , Trimatrix revisions 

Terri Zick to: Christopher Lambesis 

Cc: 'Kathy Wilson' 

08/02/2010 01:09 PM 

From: 

To: 

Cc: 

History: 

ChrisTerri Zick <tzick@cticompanies.com> 

Christopher Lambesis/R5/USEPA/US@EPA 

'Kathy Wilson' <kathywilson@owossographic.com> 

This message has been forwarded. 

Attached, please find the final version of the revisions and additional information as discussed in our 

recent conference call. I will speak with you after you have had a chance to review the attached 

information to confirm that it satisfies the remaining needs for compiling the delisting package. 

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 / 248.486.5050 Fax 

From: Gary Wood [mailto:woodgl@trimatrixlabs.com] 

Sent: Friday, July 30, 2010 3:57 PM 

To: Terri Zick 

Subject: Conference Call Follow Up 

Terri, 

Please find attached a couple of files regarding this project. One contains the revised forms for the data package as 

requested (revised result forms, including the revised units for 1003151-01, plus the revised prep batch sheets). 

They are all paginated for easy insertion as replacement pages into the package. The other contains the additional 

library searches for the retention times Chris mentioned during the conference call. They are obviously not the 

sample peak/spectra as n-methylpyrrolidone, but it does appear that they are related — all of them have some sort of 

pyrrolidine as one or more of the matches, but none are exact matches (best Qual value was 59). 

Also attached is the revised page to the SDG case narrative where I've added the discussion with Chris' edit and 

revised Statement of Data Qualifications page. 

Gary Wood 

Senior Project Chemist 
Corporate / Laboratory Main: 616.975.4500 

5560 Corporate Exchange Court SE Direct: 616.940.4206 

Grand Rapids, Michigan 49512 Fax: 616.942.7463 

woodgl @ trim atrixlabs.com www.trimatrixlabs.com 

The information contained in, or files attached to, this email is intended only for the use of the individual or entity to whom it is 

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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! 
METHOD BLANK DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Waste Laboratory ID: 1002373-BLK1 File ID: 1002373-blkl.D 

Prepared: 03/17/10 10:40 Preparation: 3550B Sonication Extract Initial/Final: 30 g / 10 mL 

Analyzed: 03/17/10 14:50 Instrument: 308 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C 18005 

CAS No. Tentatively Identified Compound RT Concentration Unit Q 

872-50-4 n-methylpyrrolidone I Not found mg/kg N 

Internal Standard Area RT 1 Ref. Area Ref. RT 

1,4-Dichlorobenzene-d4 322253 7.901 223342 7.896 

Naphthalene-d8 983790 10.64 668992 10.635 

Acenaphthene-d10 629471 14.761 445098 14.762 

Phenanthrene-d 10 1059263 18.142 793306 18.137 

Chrysene-d12 1272751 21.697 805004 21.698 

Perylene-d12 1044725 23.475 649569 23.464 
Laboratory: TriMatrix Laboratories. Inc. 

Client: CTI and Associates, Inc. 

SDG: 1003151 

Project: Owosso Graphic Arts 

ORGANIC ANALYSIS DATA SHEET 

USEPA-8270C 

Matrix: Liquid Waste Laboratory ID: 1003151-01 File ID: 1003151-01.D 

Sampled: 03/08/10 10:03 Prepared: 03/17/10 10:40 Analyzed: 03/17/10 15:25 

Solids: Preparation: Direct Injection Initial/Final: 0.05 mL / 50 mL 

OC Batch: 1006710 Sequence: 0C18017 Calibration: 0C 18005 Instrument: 308 

872-50-4 n-methylpyrrolidone I 8.257 

CAS No. Tentatively Identified Compound RT EST. CONC. (mg/L) Q 

 000 3800 

1 Internal Standard 1 Area I RT Ref. Area Ref. RT Q 

1,4-Dichlorobenzene-d4 338939 7.901 223342 7.896 

Naphthalene-d8 1049485 10.641 668992 10.635 

Acenaphthene-d10 671734 14.762 445098 14.762 

Phenanthrene-d10 1147886 18.147 793306 18.137 

Chrysene-d12 1498334 21.698 805004 21.698 

Perylene-d12 1185613 23.475 649569 23.464 
ORGANIC ANALYSIS DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Sludge Laboratory ID: 1003151-03 File ID: 1003151-03.D 

Sampled: 03/08/10 09:33 Prepared: 03/17/10 10:40 Analyzed: 03/17/10 16:00 

Solids: Preparation: 3550B Sonication Extract Initial/Final: 29.8 g / 10 mL 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C18005 Instrument: 308 

CAS No. Tentatively Identified Compound RT EST. CONC. (mg/kg) Q 

872-50-4 n-methylpyrrolidone 1 8.262 0.40 N 

Internal Standard Area RT Ref. Area Ref. RT Q 

1,4-Dichlorobenzene-d4 286895 7.93 223342 7.896 

Naphthalene-d8 857595 10.664 668992 10.635 

Acenaphthene-d10 550531 14.814 445098 14.762 

Phenanthrene-d10 1554446 18.218 793306 18.137 

Chrysene-d12 437514 21.715 805004 21.698 

Perylene-d12 195889 23.504 649569 23.464 * 
ORGANIC ANALYSIS DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Sludge Laboratory ID: 1003151-04 File ID: 1003151-04.D 

Sampled: 03/08/10 09:37 Prepared: 03/17/10 10:40 Analyzed: 03/17/10 16:3f 

Solids: Preparation: 3550B Sonication Extract Initial/Final: 30.2 g / 10 mL 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C 18005 Instrument: 308 

CAS No. Tentatively Identified Compound 1 RT EST. CONC. (mg/kg) Q 

872-50-4 n-methylpyrrolidone I I Not found N 

Internal Standard RT Ref. Area 

l,4-Dichlorobenzene-d4 

Area 

325633 7.93 223342 

Ref. RT Q 

7.896 

Naphthalene-d8 906324 10.687 668992 10.635 

Acenaphthene-d10 682657 14.837 445098 14.762 

Phenanthrene-d10 1543854 18.247 793306 18.137 

Chrysene-d12 382828 21.727 805004 21.698 * 

Perylene-d12 185367 23.516 649569 23.464 * 

, 
ORGANIC ANALYSIS DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Sludge Laboratory ID: 1003151-05 File ID: 1003151-05.D 

Sampled: 03/08/10 09:41 Prepared: 03/17/10 10:40 Analyzed: 03/17/10 17:10 

Solids: Preparation: 3550B Sonication Extract Initial/Final: 29.9 g / 10 mL 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C18005 Instrument: 308 

CAS No. Tentatively Identified Compound RT Q 

872-50-4 n-methylpyrrolidone 0.020 N I 8.286 

EST. CONC. (mg/kg) 

I

Internal Standard Area RT Ref. Area Ref. RT Q 

1,4-Dichlorobenzene-d4 300582 7.954 223342 7.896 

Naphthalene-d8 847473 10.699 668992 10.635 

Acenaphthene-d10 705088 14.861 445098 14.762 

Phenanthrene-d10 1772739 18.264 793306 18.137 * 

Chrysene-d12 823485 21.674 805004 21.698 

Perylene-d12 161946 23.539 649569 23.464 * 
ORGANIC ANALYSIS DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Sludge Laboratory ID: 1003151-06 File ID: 1003151-06.D 

Sampled: 03/08/10 09:49 Prepared: 03/17/10 10:40 Analyzed: 03/17/10 17:45 

Solids: Preparation: 3550B Sonication Extract Initial/Final: 29.7 g / 10 mL 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C18005 Instrument: 308 

CAS No. Tentatively Identified Compound 

872-50-4 n-methylpyrrolidone I 1 

RT EST. CONC. (mg/kg) Q 

Not found N 

Internal Standard Area RT Ref. Area Ref. RT 

1,4-Dichlorobenzene-d4 295350 7.954 223342 7.896 

Naphthalene-d8 850290 10.716 668992 10.635 

Acenaphthene-d10 593990 14.878 445098 14.762 

Phenanthrene-d10 1565170 18.276 793306 18.137 

Chrysene-d12 319297 21.756 805004 21.698 

Perylene-d12 153242 23.563 649569 23.464 * 
METHOD BLANK DATA SHEET 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Matrix: Waste Laboratory ID: 1002373-BLK1 File ID: 1002373-blkl.D 

Prepared: 03/17/10 10:40 Preparation: 3550B Sonication Extract lnitial/Final: 30 g / 10 mL 

Analyzed: 03/17/10 14:50 Instrument: 308 

QC Batch: 1002373 Sequence: 0C18017 Calibration: 0C18005 

CAS No. Tentatively Identified Compound RT Concentration Unit Q 

872-50-4 n-methylpyrrolidone I Not found mg/kg N 

Internal Standard Area RT Ref. Area Ref. RT Q 

I ,4-Dichlorobenzene-d4 322253 7.901 223342 7.896 

Naphthalene-d8 983790 10.64 668992 10.635 

Acenaphthene-d10 629471 14.761 445098 14.762 

Phenanthrene-d10 1059263 18.142 793306 18.137 

Chrysene-d12 1272751 21.697 805004 21.698 

t 

Perylene-d12 1044725 23.475 649569 23.464 
INTERNAL STANDARD AREA AND RT SUMMARY 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Sequence: 0C18017 Instrument: 308 

Matrix: Waste Calibration: 0C18005 

Reference Reference Area % RT Diff 

Internal Standard Response RT Response RT Area % Limits RT Diff Limit Q 

Blank (1002373-BLK1 ) Lab File ID: 1002373-blkl.D Analyzed: 03/17/10 14:50 

1,4-Dichlorobenzene-d4 322253 7.901 223342 7.896 144 50 - 200 0.0050 +/-0.50 

Naphthalene-d8 983790 10.64 668992 10.635 147 50 - 200 0.0050 +1-0.50 

Acenaphthene-d 10 629471 14.761 445098 14.762 141 50 - 200 -0.0010 +/-0.50 

Phenanthrene-d10 1059263 18.142 793306 18.137 134 50 - 200 0.0050 +1-0.50 

Chrysene-d12 1272751 21.697 805004 21.698 158 50 - 200 -0.0010 +/-0.50 

Perylene-d12 1044725 23.475 649569 23.464 161 50 - 200 0.0110 +/-0.50 

Raw Product - NMP (1003151-01 ) Lab File ID: 1003151-01.D Analyzed: 03/17/10 15:25 

1,4-Dichlorobenzene-d4 338939 7.901 223342 7.896 152 50 - 200 0.0050 +/-0.50 

Naphthalene-d8 1049485 10.641 668992 10.635 157 50 - 200 0.0060 +/-0.50 

Acenaphthene-d10 671734 14.762 445098 14.762 151 50 - 200 0.0000 +/-0.50 

Phenanthrene-d10 1147886 18.142 793306 18.137 145 50 - 200 0.0050 +1-0.50 

Chrysene-d12 1498334 21.698 805004 21.698 186 50 - 200 0.0000 +/-0.50 

Perylene-d12 1185613 23.475 649569 23.464 183 50 - 200 0.0110 +/-0.50 

OGA Composite 1 (1003151-03 ) Lab File ID: 1003151-03.D Analyzed: 03/17/10 16:00 

1,4-Dichlorobenzene-d4 286895 7.93 223342 7.896 128 50 - 200 0.0340 +1-0.50 

Naphthalene-d8 857595 10.664 668992 10.635 128 50 - 200 0.0290 +/-0.50 

Acenaphthene-d10 550531 14.814 445098 14.762 124 50 - 200 0.0520 +1-0.50 

Phenanthrene-d10 1554446 18.218 793306 18.137 196 50 - 200 0.0810 +/-0.50 

Chrysene-d12 437514 21.715 805004 21.698 54 50 - 200 0.0170 +/-0.50 

Perylene-d12 195889 23.504 649569 23.464 30 50 - 200 0.0400 +/-0.50 * 

OGA Composite 2 (1003151-04) Lab File ID: 1003151-04.D Analyzed: 03/17/10 16:35 

1,4-Dichlorobenzene-d4 325633 7.93 223342 7.896 146 50 - 200 0.0340 +/-0.50 

Naphthalene-d8 906324 10.687 668992 10.635 135 50 - 200 0.0520 +1-0.50 

Acenaphthene-d10 682657 14.837 445098 14.762 153 50 - 200 0.0750 +/-0.50 

Phenanthrene-d10 1543854 18.247 793306 18.137 195 50 - 200 0.1100 +/-0.50 

Chrysene-d12 382828 21.727 805004 21.698 48 50 - 200 0.0290 +/-0.50 * 

Perylene-d12 185367 23.516 649569 23.464 29 50 - 200 0.0520 +/-0.50 * 

OGA Composite 3 (1003151-05) Lab File ID: 1003151-05.D Analyzed: 03/17/10 17:10 

1,4-Dichlorobenzene-d4 300582 7.954 223342 7.896 135 50 - 200 0.0580 +/-0.50 

Naphthalene-d8 847473 10.699 668992 10.635 127 50 - 200 0.0640 +/-0.50 

Acenaphthene-d10 705088 14.861 445098 14.762 158 50 - 200 0.0990 +/-0.50 

Phenanthrene-d10 1772739 18.264 793306 18.137 223 50 - 200 0.1270 +/-0.50 * 

Chrysene-d12 823485 21.674 805004 21.698 102 50 - 200 -0.0240 +1-0.50 

Perylene-d12 161946 23.539 649569 23.464 25 50 - 200 0.0750 +1-0.50 * 
INTERNAL STANDARD AREA AND RT SUMMARY 

USEPA-8270C 

Laboratory: TriMatrix Laboratories, Inc. SDG: 1003151 

Client: CTI and Associates, Inc. Project: Owosso Graphic Arts 

Sequence: 0C18017 Instrument: 308 

Matrix: Waste Calibration: 0C18005 

Reference Reference Area % RT Diff 

Internal Standard Response RT Response RT Area % Limits RT Diff Limit 

OGA Composite 4 (1003151-06) Lab File ID: 1003151-06.0 Analyzed: 03/17/10 17:45 

l,4-Dichlorobenzene-d4 295350 7.954 223342 7.896 132 50 - 200 0.0580 +/-0.50 

Naphthalene-d8 850290 10.716 668992 10.635 127 50 - 200 0.0810 +/-0.50 

Acenaphthene-d10 593990 14.878 445098 14.762 133 50 - 200 0.1160 +/-0.50 

Phenanthrene-d10 1565170 18.276 793306 18.137 197 50 - 200 0.1390 +1-0.50 

Chrysene-d12 319297 21.756 805004 21.698 40 50 - 200 0.0580 +/-0.50 * 

Perylene-d 12 153242 23.563 649569 23.464 24 50 - 200 0.0990 +1-0.50 * 
PREPARATION BATCH 1002373 I Page 1 of 1 

Semivolatiles MS, Waste, 3550B Sonication Extraction 

Surrogate #1 = 9100689 (Pre-Prep) 

Batch Comments: (none) 

Work Order Analysis Work Order Analysis Work Order Analysis 

1003151 8270C TIC Analysis 

Initial Final uL 

Lab Number Contain Prepared By (g) (m L) Surrogate Source ID Spike ID uL Spike Client / QC Type Extraction Comments 

1002373-BLK1 Mar-17-10 10:40 BJH 30 10 1000 BLANK 

1003151-03 A Mar-17-10 10:40 BJH 29.8 10 1000 CTI and Associates, Inc. n-methylpyrrolidone (NMP) 

1003151-04 A Mar-17-10 10:40 BJH 30.2 10 1000 CTI and Associates, Inc. n-methylpyrrolidone (NMP) 

1 0031 51-05 A Mar-17-10 10:40 BJH 29.9 10 1000 CTI and Associates, Inc. n-methylpyrrolidone (NMP) 

1003151-06 A Mar-17-10 10:40 BJH 29.7 10 1000 CTI and Associates, Inc. n-methylpyrrolidone (NMP) 
TriMatrix Laboratories, Inc. PREPARATION BATCH J 1006710 Page 1 of 1 

Semivolatiles MS, Water, Direct Injection 

Surrogate #1 = 9100689 (Pre-Prep) 

Batch Comments: From 1002373 on Jul-09-10 by JPG 

Printed: 7/9/2010 8:35:44AM 

 

Work Order Analysis Work Order Analysis Work Order Analysis 

1003151 8270C TIC Analysis 

Initial Final uL 

Lab Number Contain Prepared By (mL) (mL) Surrogate Source ID Spike ID uL Spike Client / QC Type Extraction Comments 

1003151-01 A Mar-17-10 10:40 BJH 0.05 50 100 CTI and Associates, Inc. Diluted 100 ul/10mI prior to injection 
Library Search Compound Report 

Data Path : C:\msdchem\1\DATA\031710\ 

Data File : 1003151-03.D 

Acq On : 17 Mar 2010 16:00 

Operator : JLB 

Sample : 1003151-03 

Misc 

ALS Vial : 34 Sample Multiplier: 1 

Quant Method : C:\msdchem\l\METHODS\030910bna.M 

Quant Title : 8270/625 BNA 

TIC Library : C:\Database\NIST05.L 

TIC Integration Parameters:.lscint.p 

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 

Peak Number 1 4-(Pyrrolidin-2-ylcarbonyl)... Concentration Rank 1 

R.T. EstConc Area Relative to ISTD R.T. 

8.117 5.00 ng/uL 2252810 1,4-Dichlorobenzene-d4 7.930 

Hit# of 5 Tentative ID MW MolForm CAS# Qual 

1 4-(Pyrrolidin-2-ylcarbonyl)morph... 184 C9H16N202 1000305-37-7 56 

2 (S)-(+)-2-Pyrrolidinemethanol 101 C5H11NO 023356-96-9 40 

3 (S)-(+)-2-(Methoxymethyl)pyrroll... 115 C6H13NO 063126-47-6 40 

4 (2-Pyrrolidinyljmethylamine 100 C5H12N2 1000131-13-6 39 

5 Azetidine, 1,1'-methylenebis- 126 C7H14N2 038455-24-2 17 
Library Search Compound Report 

Data Path : C:\msdchem\1\DATA\031710\ 

Data File : 1003151-04.D 

Acq On : 17 Mar 2010 16:35 

Operator : JLB 

Sample : 1003151-04 

Misc 

ALS Vial : 35 Sample Multiplier: 1 

Quant Method : C:\msdchem\1\METHODS\030910bna.M 

Quant Title : 8270/625 BNA 

TIC Library : C:\Database\NIST05.L 

TIC Integration Parameters: lscint.p 

********************************************************************* 

Peak Number 1 3,7-Dimethy1-1,7-octadien-3... Concentration Rank 1 

R.T. EstConc Area Relative to ISTD R.T. 

8.134 5.00 ng/uL 2495340 1,4-Dichlorobenzene-d4 7.930 

Hit# of 5 Tentative ID MW MolForm CAS# Qual 

1 3,7-Dimethy1-1,7-octadien-3-amine 153 C1OH19N 077984-56-6 59 

2 Pyrrolidine, 2-(hydroxymethyl)- 101 C5H11NO 1000163-39-1 56 

3 L-Proline, ethyl ester 143 C7H13NO2 005817-26-5 50 

4 [2-Pyrrolidinyllmethylamine 100 C5H12N2 1000131-13-6 40 

5 4-(Pyrrolidin-2-ylcarbonyl)morph... 184 C9H16N202 1000305-37-7 39 
Library Search Compound Report 

Data Path : C:\msdchem\1\DATA\031710\ 

Data File : 1003151-05.D 

Acq On : 17 Mar 2010 17:10 

Operator : JLB 

Sample : 1003151-05 

Misc 

ALS Vial : 37 Sample Multiplier: 1 

Quant Method : C:\msdchem\l\METHODS\030910bna.M 

Quant Title : 8270/625 BNA 

TIC Library : C:\Database\NIST05.L 

TIC Integration Parameters: lscint.p 

Peak Number 1 Phenol-d6- Concentration Rank 1 

R.T. EstConc Area Relative to ISTD R.T. 

8.128 5.00 ng/uL 8459700 1,4-Dichlorobenzene-d4 7.954 

Hit# of 5 Tentative ID MW MolForm CAS# Qual 

1 Phenol-d6- 100 C6D60 013127-88-3 32 

2 Pyrrolidine, 2.alpha.-(1-pyrroli... 168 C9H16N20 1000126-78-6 28 

3 5-Amino-3-methyl-1,2,4-oxadiazole 99 C3H5N30 003663-39-6 12 

4 3,5-Diamino-1,2,4-triazole 99 C2H5N5 001455-77-2 9 

5 2-Piperidinone 99 C5H9NO 000675-20-7 9 
SDG CASE NARRATIVE 

Sample Receipt and Login -- Work Order: 1003151 

TriMatrix Laboratories received the cooler(s) for this work order on March 09, 2010, at 17: lOpm. Receiving 

documents include field chain-of-custody (COC) record(s), sample receipt form(s), and TriMatrix Courier 

shipping document(s). The condition of the custody seals, the type and location of the coolant, and the 

temperatures recorded for each cooler are presented on the TriMatrix Sample Receiving / Log -In Checklist 

provided in section A of this package. The receipt temperature of the samples was determined by using an 

infrared thermometer to record the temperature of three random samples of varying container types and the 

accompanying temperature blank, if present. 

Samples were scheduled for the analyses listed on the corresponding COC form. Field IDs and assigned 

laboratory identifiers are presented in the table below. 

Laboratory Date Field Sample Name Matrix Sample ID Sampled 

Raw Product - NMP 1003151-01 Liquid Waste 3/8/2010 

Trip Blank 1003151-02 Water 3/8/2010 

OGA Composite 1 1003151-03 Sludge 3/8/2010 

OGA Composite 2 1003151-04 Sludge 3/8/2010 

OGA Composite 3 1003151-05 Sludge 3/8/2010 

OGA Composite 4 1003151-06 Sludge 3/8/2010 

No administrative issues were encountered during the receipt and analysis of this work order. 

The following technical issues were encountered during the receipt and analysis of this work order: 

During the analysis of the samples for the tentative identification of nmethylpyrrolidone, the samples had very low to no recovery for the acid 

surrogate compounds that were spiked into them. In addition, all of the 

samples had failing internal standard recoveries for perylene-d12, and sample 

1003151-04 and 1003151-06 had failing internal standard recoveries for 

chrysene-d12. The poor surrogate recoveries were the direct result of the 

sample matrix, which caused degradation of the injection port and the 

analytical column. Further, the non-target analytes in the sample matrix had 

concentrations such that the response of the internal standards mentioned 

above were suppressed below their acceptance limits. 

These surrogates and internal standards, however, were not associated with nmethylpyrrolidone, and as such do not have an impact on the data quality of 

the results. N-methylpyrrolidone is considered a basic analyte, so the low 

acid recoveries are not applicable. All of the base/neutral surrogate 

compounds had acceptable recoveries with one exception - sample 1003151-05 -

which also had a low recovery for the base/neutral surrogate ortho-terphenyl. 

This sample has been qualified as estimated based on the low recovery. The 

internal standard associated with n-methylpyrrolidone is 1,4-dichlorobenzened4, which had acceptable recovery in all of the samples. 
SDG CASE NARRATIVE 

Attachment 2 

Statement of Data Qualifications 

Tentatively Identified Compound Scan - EPA Method 8270C 

Qualification: One or more of the internal standards for this sample had recoveries outside of the method 

acceptance windows. However, the internal standard associated with the target analyte has 

acceptable recovery. No qualification is needed. 

Analysis: USEPA-8270C 

Sample/Analyte: 1003151-03 OGA Composite 1 

1003151-04 OGA Composite 2 

1003151-05 OGA Composite 3 

1003151-06 OGA Composite 4 

Qualification: This sample was used for peak identification only. No quantitative result was obtained. Sample 

was prepared by dilution into methylene chloride then directly injected. 

Analysis: USEPA-8270C 

Sample/Analyte: 1003151-01 Raw Product - NMP 

Qualification: This sample had recoveries of the acid surrogates that were out of control due to sample matrix 

interference. The base/neutral surrogate OTP was also out of control due to matrix interference. 

Result should be considered as estimated. 

Analysis: USEPA-8270C 

Sample/Analyte: 1003151-05 OGA Composite 3 

Qualification: This sample had recoveries of the acid surrogates that were out of control due to sample matrix 

interference. The target analyte was not an acidic compound, therefore, no qualification is 

necessary. 

Analysis: USEPA-8270C 

Sample/Analyte: 1003151-03 OGA Composite 1 

1003151-04 OGA Composite 2 

1003151-06 OGA Composite 4