URS Corporation

1600 Perimeter Park Dr. 

Morrisville, NC 27560

AES ICR Test 

AGY Units 1 & 2 

Guayama, PR 

Project # 39682175 

PO# 226013.US 

Analytical Report 

(0810-26)

EPA OTM 27 

Particulate Matter 

EPA OTM 28 

Condensible Particulate Matter 

Enthalpy Analytical, Inc. 

Phone: (919) 850 - 4392 / Fax: (919) 850 - 9012 / www.enthalpy.com 

2202 Ellis Road Durham, NC 27703 - 5518 
I certify that to the best of my knowledge all analytical data presented in this report: 

 Have been checked for completeness 

 Are accurate, error-free, and legible 

 Have been conducted in accordance with approved protocol, and that all deviations and analytical 

problems are summarized in the appropriate narrative(s) 

This analytical report was prepared in Portable Document Format (.PDF) and contains  pages. 

EA# 0810-26 Page 2 of 28
Summary of Results

EA# 0810-26 Page 3 of 28
Compound Sample ID / Particulate Matter (PM) Catch (g)

Unit 1 Run 1 Unit 1 Run 2 Unit 1 Run 4

Cyc Acetone Catch (g) 0.04131 0.05551 0.02793

2.5 PM Catch (g) 0.00156 0.00044 0.00138

Filter 0.02035 0.02225 0.02026

Total 0.06322 0.07820 0.04958

Unit 2 Run 1 Unit 2 Run 2 Unit 2 Run 3

Cyc Acetone Catch (g) 0.10472 0.07332 0.07193

2.5 PM Catch (g) 0.00183 0.00057 0.00247

Filter 0.01145 0.01129 0.01179

Total 0.11800 0.08518 0.08619

Field Blank Filter Blank #REF!

Cyc Acetone Catch (g) 0.00202 #REF!

2.5 PM Catch (g) -0.00035 #REF!

Filter 0.00015 0.00024 #REF!

Total 0.00216 #REF!

Company

Analyst

Parameters

# Samples

URS

KTH

EPA OTM-027

6 Runs, Blanks

Client #

Job #

PO #

Report Date

39682175

0810-26

226013.US

8/25/2010

EA# 0810-26 Page 4 of 28
Compound Sample ID / Condensible Particulate Matter (CPM) Weight (mg)

Unit 1 Run 1 Unit 1 Run 2 Unit 1 Run 4

Net Organic Catch 2.7 2.6 2.9

Corrected Inorganic 276.6 139.8 78.1

TB Corrected CPM 277.3 140.4 79.0

Unit 2 Run 1 Unit 2 Run 2 Unit 2 Run 3

Net Organic Catch 5.2 4.3 3.6

Corrected Inorganic 252.6 357.6 172.3

TB Corrected CPM 255.8 359.9 173.9

Filter Blank Run 8 Run 9

Net Organic Catch 0.4 0.0 0.0

Corrected Inorganic 0.2 -0.1 -0.1

TB Corrected CPM 0.0 -2.1 -2.1

Train Blank

Organic Catch 3.5 If Train Blank Corrected CPM is >2.0 mg,

Inorganic Catch 0.3 then sample correction is 2.0 mg.

CPM 3.7

Company

Analyst

Parameters

# Samples

URS

KTH

EPA OTM-28

6 Runs, Blanks

Client #

Job #

PO #

Report Date

39682175

0810-26

226013.US

8/25/2010

0810-26 res otm28 9/1/2010

EA# 0810-26 Page 5 of 28
Results

EA# 0810-26 Page 6 of 28
Analysis of Particulate Recovery

Sample ID Unit 1 Run 1 Unit 1 Run 2 Unit 1 Run 4 Unit 2 Run 1 Unit 2 Run 2 Unit 

Filter ID 0610-45 Dates 0610-46 Dates 0610-48 Dates 0610-54 Dates 0610-44 Dates 0610-51 

Final wt. (g) 1st 0.13710 8/17/10 0.13811 8/17/10 0.13882 8/17/10 0.12939 8/17/10 0.13166 8/17/10 0.12118 

Final wt. (g) 2nd 0.13705 8/18/10 0.13805 8/18/10 0.13876 8/18/10 0.12935 8/18/10 0.13159 8/18/10 0.12109 

Final Tare Weight (g) 0.11670 0.11580 0.11850 0.11790 0.12030 0.10930 

Net filter catch (g) 0.02035 0.02225 0.02026 0.01145 0.01129 0.01179 

2.5 PM Acetone Rinses

Beaker number 5337 Dates 5338 Dates 5339 Dates 5345 Dates 5346 Dates 5347 Final wt (g) 1st 1.89177 8/17/10 1.88951 8/17/10 1.88753 8/17/10 1.89393 8/17/10 1.90153 8/17/10 1.90159 

Final wt (g) 2nd 1.89178 8/18/10 1.88953 8/18/10 1.88755 8/18/10 1.89396 8/18/10 1.90154 8/18/10 1.90159 

 Beaker tare (g) 1.89021 8/13/10 1.88909 8/13/10 1.88617 8/13/10 1.89213 8/13/10 1.90097 8/13/10 1.89912 

Acetone vol (mL) 12 9 11 15 8 6 

2.5 PM Catch (g) 0.00156 0.00044 0.00138 0.00183 0.00057 0.00247 

Cyc Acetone Rinses

Beaker number 5340 Dates 5341 Dates 5342 Dates 5348 Dates 5349 Dates 5350 Final wt (g) 1st 1.92984 8/17/10 1.94087 8/17/10 1.91385 8/17/10 1.99717 8/17/10 1.96315 8/17/10 1.97376 

Final wt (g) 2nd 1.92983 8/18/10 1.94088 8/18/10 1.91387 8/18/10 1.99713 8/18/10 1.96306 8/18/10 1.97370 

 Beaker tare (g) 1.88852 8/13/10 1.88537 8/13/10 1.88593 8/13/10 1.89241 8/13/10 1.88974 8/13/10 1.90177 

Acetone vol (mL) 10 8 17 16 30 12 

Cyc Acetone Catch (g) 0.04131 0.05551 0.02793 0.10472 0.07332 0.07193 

Total particulate (g) 0.06322 0.07820 0.04958 0.11800 0.08518 0.08619 

 Client Reagent Blank Acetone Analysis

Blank beaker number 5351 Dates

Blank volume (mL) 76 Dates Final wt (g) 1st 1.88934 8/17/10

Beaker tare (g) 1.88904 8/13/10 Final wt (g) 2nd 1.88935 8/18/10

Max acetone residue (g) 0.0006 Acetone residue (g) 0.0003

 Laboratory In-House Blank Acetone Analysis

Blank beaker number 5355 Dates

Blank volume (mL) 200 Dates Final wt (g) 1st 1.92352 8/17/10

Beaker tare (g) 1.92262 8/13/10 Final wt (g) 2nd 1.92351 8/18/10

Max acetone residue (g) 0.0016 Acetone residue (g) 0.0009

Company

Analyst

Parameters

# Samples

URSKTHEPA OTM-0276 Runs, Blanks

Client #

Job #

PO #

Report Date

396821750810-26226013.US8/25/2010

EA# 0810-26 Page 7 of 28
Analysis of Particulate Recovery

Sample ID Filter Blank Run 8 Run 9 Run 

Filter ID 0610-53 Dates 0210-008 Dates 0210-101 Dates 0210-102

Final wt. (g) 1st 0.12002 8/17/10 0.00000 6/7/10 1P 0.00000 6/7/10 1P 0.00000

Final wt. (g) 2nd 0.11994 8/18/10 0.00000 6/7/10 7P 0.00000 6/7/10 7P 0.00000

Final Tare Weight (g) 0.11970 0.00000 5/6/10 0.00000 5/6/10 0.00000

Net filter catch (g) 0.00024 0.00 0.00 0.00

Total particulate (g) 0.00024 0.0 0.0 0.0

 Client Reagent Blank Acetone Analysis

Blank beaker number 5351 Dates

Blank volume (mL) 76 Dates Final wt (g) 1st 1.88934 8/17/10

Beaker tare (g) 1.889043 8/13/10 Final wt (g) 2nd 1.88935 8/18/10

Max acetone residue (g) 0.0006 Acetone residue (g) 0.0003

 Laboratory In-House Blank Acetone Analysis

Blank beaker number 5355 Dates

Blank volume (mL) 200 Dates Final wt (g) 1st 1.92352 8/17/10

Beaker tare (g) 1.92262 8/13/10 Final wt (g) 2nd 1.92351 8/18/10

Max acetone residue (g) 0.0016 Acetone residue (g) 0.0009

Company

Analyst

Parameters

# Samples

URS

KTH

EPA OTM-027

6 Runs, Blanks

Client #

Job #

PO #

Report Date

39682175

0810-26

226013.US

8/25/2010

EA# 0810-26 Page 8 of 28
Analysis of Condensible Particulate Recovery

Sample ID Number Train Blank Unit 1 Run 1 Unit 1 Run 2 Unit 1 Run 4

Organic

Beaker Number 5327 5324 5325 5326

Initial Acetone Volume, mL 72 142 106 124

Initial MeCl2 Volume, mL 114 124 154 92

Initial MeCl2/Acetone Volume, mL 186 266 260 216

Lab MeCl2 Volume, mL 165 Dates 165 Dates 165 Dates 165 Dates

Final Weight, g 1.8978 8/17/10 1.9151 8/17/10 1.8979 8/17/10 1.8939 8/17/10

Reweigh, Final, g 1.8978 8/18/10 1.9152 8/18/10 1.8979 8/18/10 1.8939 8/18/10

Beaker Tare, g 1.8943 8/13/10 1.9125 8/13/10 1.8953 8/13/10 1.8910 8/13/10

Net Organic Catch, mg 3.5 2.7 2.6 2.9

Inorganic

Beaker Number 5194 Dates 5597 Dates 5598 Dates 5599 Dates

Final Weight, g 1.9098 8/24/10 2.1545 8/24/10 2.0250 8/24/10 1.9402 8/24/10

Reweigh, Final, g 1.9099 8/25/10 2.1542 8/25/10 2.0254 8/25/10 1.9406 8/25/10

Beaker Tare, g 1.9097 8/4/10 1.8771 8/14/10 1.8853 8/14/10 1.8618 8/14/10

H2O FV, mL 146 521 544 508

Removed Pre-aliquot, mL 0.5 0.5 0.5 0.5

Pre-aliquot CF 1.00 1.00 1.00 1.00

Resuspended Volume, mL 100.0 100.0 100.0 100.0

Removed Post-aliquot, mL 0.5 0.5 0.5 0.5

Post-aliquot CF 1.01 1.01 1.01 1.01

Net Inorganic, mg 0.3 278.8 140.9 79.3

Ammonium Correction, mg 0.0 2.2 1.1 1.2

Corrected Inorganic, mg 0.3 276.6 139.8 78.1

Condensible Particulate Matter, mg 3.7 279.3 142.4 81.0

TB Corrected CPM, mg 277.3 140.4 79.0

------------------------------------------------------------------Client Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5352 Dates Beaker Number 5600 Dates Beaker Number 

Tare weight, g 1.8903 8/13/10 Tare weight, g 1.9213 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.8905 8/17/10 Dry Residue Weight, g 1.9229 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.8905 8/18/10 Reweigh, Final, g 1.9230 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0002 Water Residue, g 0.0017 Acetone Residue, g 

MeCl2 Volume, mL 78 Water Volume, mL 148 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0016 Max. Water Residue, g 0.0015 Max. Acetone Residue, g 

----------------------------------------------------------------In-House Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5354 Dates Beaker Number 5601 Dates Beaker Number 

Tare weight, g 1.8994 8/13/10 Tare weight, g 1.9234 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.9007 8/17/10 Dry Residue Weight, g 1.9240 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.9007 8/18/10 Reweigh, Final, g 1.9241 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0013 Water Residue, g 0.0007 Acetone Residue, g 

MeCl2 Volume, mL 225 Water Volume, mL 250 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0045 Max. Water Residue, g 0.0025 Max. Acetone Residue, g 

Company

Analyst

Parameters

# Samples

URSKTHEPA OTM-286 Runs, Blanks

Client #

Job #

PO #

Report Date

396821750810-26226013.US8/25/2010

EA# 0810-26 Page 9 of 28
Analysis of Condensible Particulate Recovery

Sample ID Number Train Blank Unit 2 Run 1 Unit 2 Run 2 Unit 2 Run 3

Organic

Beaker Number 5327 5321 5322 5323

Initial Acetone Volume, mL 72 110 96 128

Initial MeCl2 Volume, mL 114 102 102 124

Initial MeCl2/Acetone Volume, mL 186 212 198 252

Lab MeCl2 Volume, mL 165 Dates 165 Dates 165 Dates 165 Dates

Final Weight, g 1.8978 8/17/10 1.9410 8/17/10 1.9364 8/17/10 1.9263 8/17/10

Reweigh, Final, g 1.8978 8/18/10 1.9411 8/18/10 1.9366 8/18/10 1.9264 8/18/10

Beaker Tare, g 1.8943 8/13/10 1.9359 8/13/10 1.9323 8/13/10 1.9228 8/13/10

Net Organic Catch, mg 3.5 5.2 4.3 3.6

Inorganic

Beaker Number 5194 Dates 5594 Dates 5595 Dates 5596 Dates

Final Weight, g 1.9098 8/24/10 2.1151 8/24/10 2.2531 8/24/10 2.0496 8/24/10

Reweigh, Final, g 1.9099 8/25/10 2.1147 8/25/10 2.2527 8/25/10 2.0492 8/25/10

Beaker Tare, g 1.9097 8/4/10 1.8611 8/14/10 1.8952 8/14/10 1.8761 8/14/10

H2O FV, mL 146 500 487 504

Removed Pre-aliquot, mL 0.5 0.5 0.5 0.5

Pre-aliquot CF 1.00 1.00 1.00 1.00

Resuspended Volume, mL 100.0 100.0 100.0 100.0

Removed Post-aliquot, mL 0.5 0.5 0.5 0.5

Post-aliquot CF 1.01 1.01 1.01 1.01

Net Inorganic, mg 0.3 255.1 359.7 174.1

Ammonium Correction, mg 0.0 2.5 2.2 1.8

Corrected Inorganic, mg 0.3 252.6 357.6 172.3

Condensible Particulate Matter, mg 3.7 257.8 361.9 175.9

TB Corrected CPM, mg 255.8 359.9 173.9

------------------------------------------------------------------Client Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5352 Dates Beaker Number 5600 Dates Beaker Number 

Tare weight, g 1.8903 8/13/10 Tare weight, g 1.9213 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.8905 8/17/10 Dry Residue Weight, g 1.9229 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.8905 8/18/10 Reweigh, Final, g 1.9230 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0002 Water Residue, g 0.0017 Acetone Residue, g 

MeCl2 Volume, mL 78 Water Volume, mL 148 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0016 Max. Water Residue, g 0.0015 Max. Acetone Residue, g 

----------------------------------------------------------------In-House Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5354 Dates Beaker Number 5601 Dates Beaker Number 

Tare weight, g 1.8994 8/13/10 Tare weight, g 1.9234 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.9007 8/17/10 Dry Residue Weight, g 1.9240 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.9007 8/18/10 Reweigh, Final, g 1.9241 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0013 Water Residue, g 0.0007 Acetone Residue, g 

MeCl2 Volume, mL 225 Water Volume, mL 250 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0045 Max. Water Residue, g 0.0025 Max. Acetone Residue, g 

Company

Analyst

Parameters

# Samples

URSKTHEPA OTM-286 Runs, Blanks

Client #

Job #

PO #

Report Date

396821750810-26226013.US8/25/2010

EA# 0810-26 Page 10 of 28
Analysis of Condensible Particulate Recovery

Sample ID Number Train Blank Filter Blank Run 8 Run 9

Organic

Beaker Number 5327 5328

Initial Acetone Volume, mL 72 0

Initial MeCl2 Volume, mL 114 0

Initial MeCl2/Acetone Volume, mL 186 0

Lab MeCl2 Volume, mL 165 Dates 165 Dates 165.00 Dates 165.00 Dates

Final Weight, g 1.8978 8/17/10 1.9048 8/17/10

Reweigh, Final, g 1.8978 8/18/10 1.9048 8/18/10

Beaker Tare, g 1.8943 8/13/10 1.9044 8/13/10

Net Organic Catch, mg 3.5 0.4 0.00 0.00

Inorganic

Beaker Number 5194 Dates 5195 Dates Dates Dates

Final Weight, g 1.9098 8/24/10 1.9082 8/24/10

Reweigh, Final, g 1.9099 8/25/10 1.9083 8/25/10

Beaker Tare, g 1.9097 8/4/10 1.9081 8/4/10

H2O FV, mL 146 75

Removed Pre-aliquot, mL 0.5 0.5 0.50 0.50

Pre-aliquot CF 1.00 1.01 0.00 0.00

Resuspended Volume, mL 100.0 100.0 100.00 100.00

Removed Post-aliquot, mL 0.5 0.5 0.50 0.50

Post-aliquot CF 1.01 1.01 1.01 1.01

Net Inorganic, mg 0.3 0.2 0.00 0.00

Ammonium Correction, mg 0.0 0.0 0.14 0.10

Corrected Inorganic, mg 0.3 0.2 -0.14 -0.10

Condensible Particulate Matter, mg 3.7 0.6 -0.14 -0.10

TB Corrected CPM, mg -1.4 -2.14 -2.10

------------------------------------------------------------------Client Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5352 Dates Beaker Number 5600 Dates Beaker Number 

Tare weight, g 1.8903 8/13/10 Tare weight, g 1.9213 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.8905 8/17/10 Dry Residue Weight, g 1.9229 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.8905 8/18/10 Reweigh, Final, g 1.9230 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0002 Water Residue, g 0.0017 Acetone Residue, g 

MeCl2 Volume, mL 78 Water Volume, mL 148 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0016 Max. Water Residue, g 0.0015 Max. Acetone Residue, g 

----------------------------------------------------------------In-House Blank Analyses------------------------------------------------------------------

Type Blank MeCl Blank Type Blank H2O Blank Type Blank 

Beaker Number 5354 Dates Beaker Number 5601 Dates Beaker Number 

Tare weight, g 1.8994 8/13/10 Tare weight, g 1.9234 8/23/10 Tare weight, g 

Dry Residue Weight, g 1.9007 8/17/10 Dry Residue Weight, g 1.9240 8/24/10 Dry Residue Weight, g 

Reweigh, Final, g 1.9007 8/18/10 Reweigh, Final, g 1.9241 8/25/10 Reweigh, Final, g 

MeCl2 Residue, g 0.0013 Water Residue, g 0.0007 Acetone Residue, g 

MeCl2 Volume, mL 225 Water Volume, mL 250 Acetone Volume, mL 

Max. MeCl2 Residue, g 0.0045 Max. Water Residue, g 0.0025 Max. Acetone Residue, g 

Company

Analyst

Parameters

# Samples

URSKTHEPA OTM-286 Runs, Blanks

Client #

Job #

PO #

Report Date

396821750810-26226013.US8/25/2010

EA# 0810-26 Page 11 of 28
MDL 0.09 (mg Ammonium)

MDL 0.26 (mg Sulfate)

Blank titrant amount (Vtb) 0.02 [Set this equal to the In-House Blank Titration Volume and then white out this note]

NH4OH normality 0.1 Lot # Sigma Aldrich 318620

Sample ID.

Volume

Resuspended

(mL)

Titration

Aliquot

Vol (mL)

Aliquot Factor 

(mL rec'd/aliq mL)

Train Blank 100 99.5 0.04 ND 1.01 0.26 ND 0.09 ND

Unit 1 Run 1 100 99.5 1.30 1.01 6.18 2.19

Unit 1 Run 2 100 99.5 0.66 1.01 3.09 1.10

Unit 1 Run 4 100 99.5 0.72 1.01 3.38 1.20

Unit 2 Run 1 100 99.5 1.46 1.01 6.95 2.46

Unit 2 Run 2 100 99.5 1.28 1.01 6.08 2.16

Unit 2 Run 3 100 99.5 1.09 1.01 5.17 1.83

Filter Blank 100 99.5 0.03 ND 1.01 0.26 ND 0.09 ND

SO4 Catch

(mg)

NH4OH

Titration

Vol (mL)

Ammonium

equivalent

(mg)

Company

Analyst

Parameters

# Samples

URS

KTH

EPA OTM-28

6 Runs, Blanks

Client #

Job #

PO #

Report Date

39682175

0810-26

226013.US

8/25/2010

EA# 0810-26 Page 12 of 28
Narrative Summary

EA# 0810-26 Page 13 of 28
Enthalpy Analytical Narrative Summary 

Company URS Corp. - RTP Client # 39682175

Analyst KTH Job # 0810-26 

Parameters EPA OTM 27 PO # 226013.US 

# Samples 6 Runs, Blanks Report Date August 26, 2010 

Custody Heather Tarjeft received the samples on 8/5/10 after being relinquished 

by URS Corporation of Research Triangle Park, NC. The samples were 

received at 24.4C in good condition. Prior to, during, and after 

analysis, the samples were kept under lock with access only to 

authorized personnel by Enthalpy Analytical, Inc. 

Analysis The samples were analyzed for particulate matter using EPA Other Test 

Method (OTM) 27, Determination of PM10 and PM2.5 Emissions from 

Stationary Sources (Constant Sampling Rate Procedures). 

The filters were placed in a dessicator for 24 hours. The filters were 

weighed at minimum 6-hour intervals until constant weights were 

achieved. 

The volumes of the acetone rinses were measured and recorded. The 

acetone rinses were transferred to tare weighed aluminum weighing 

pans and evaporated using nitrogen in a vented chamber. The residues 

were placed in a dessicator for 24 hours. The residues were weighed at 

minimum 6-hour intervals until constant weights were achieved. 

All samples were weighed on a Sartorius Model ME 5-F balance (SN 

23104965) certified by Security Scale Service, Inc. through July 15, 

2011. 

QC Notes Prior to weighing the samples, the laboratory requires that the balance is 

challenged using weights that bracket the samples. Challenge weights 

were inadvertently not measured on 8/13/10. The challenge weights 

measured on both 8/12/10 and 8/14/10 met criteria. 

All sample preparation and analytical holding times specified in the 

method were met. 

EA# 0810-26 Page 14 of 28
Enthalpy Analytical Narrative Summary 

(continued) 

Reporting Notes Gravimetric analyses are considered to be accurate to ±0.5 mg. 

Therefore, negative catch weights between 0 and –0.5 mg are set to zero 

and no investigation is undertaken. Negative catch weights less than 

-0.5 mg are investigated. 

The filter tare weights were provided by the client. 

The results presented in this report are representative of the samples as 

provided to the laboratory. 

EA# 0810-26 Page 15 of 28
Enthalpy Analytical Narrative Summary 

Company URS Corp. - RTP Client # 39682175

Analyst KTH Job # 0810-26 

Parameters EPA OTM 28 PO # 226013.US 

# Samples 6 Runs, Blanks Report Date August 26, 2010 

Custody Heather Tarjeft received the samples on 8/5/10 after being relinquished 

by URS Corporation of Research Triangle Park, NC. The samples were 

received at 24.4C in good condition. Prior to, during, and after 

analysis, the samples were kept under lock with access only to 

authorized personnel by Enthalpy Analytical, Inc. 

Analysis The samples were analyzed for condensible particulate matter using the 

procedures in EPA Other Test Method 28, Dry Impinger Method for 

Determining Condensable Particulate Emissions from Stationary 

Sources. 

All samples were weighed on a Sartorius Model ME 5-F balance (SN 

23104965) certified by Security Scale Service, Inc. through July 15, 

2011. 

QC Notes A field blank, filter blank, acetone blank, water blank, and methylene 

chloride blank were received and analyzed with these samples. 

The method specifies blank corrections are accomplished by subtracting 

the particulate mass determined in the ‘Field Train Blank’ or 2 mg 

(whichever is less) from the sample weight. 

The inorganic results for the samples were corrected for the ammonium 

ions used to precipitate the sulfate, per the formula in the Method 

(Section 12.2.1). 

All sample preparation and analytical holding times specified in the 

method were met. 

Reporting Notes Gravimetric analyses are considered to be accurate to ±0.5 mg. 

Therefore, negative catch weights between 0 and –0.5 mg are set to zero 

and no investigation is undertaken. Negative catch weights less than 

-0.5 mg are investigated. 

The results presented in this report are representative of the samples as 

provided to the laboratory. 

EA# 0810-26 Page 16 of 28
General Reporting Notes 

The following are general reporting notes that are applicable to all Enthalpy Analytical, Inc. data 

reports, unless specifically noted otherwise.

 The acronym MDL represents the Minimum Detection Limit. Below this value the laboratory cannot 

determine the presence of the analyte of interest reliably. 

 The acronym LOQ represents the Limit of Quantification. Below this value the laboratory cannot 

quantitate the analyte of interest within the criteria of the method. 

 The acronym ND following a value indicates a non-detect or analytical result below the MDL. 

 The letter J following a value indicates an analytical result between the MDL and the LOQ. A J flag 

indicates that the laboratory can positively identify the analyte of interest as present, but the value 

should be considered an estimate. 

 The letter E following a value indicates an analytical result exceeding 100% of the highest calibration 

point. The associated value should be considered as an estimate. 

 The acronym DF represents Dilution Factor. This number represents dilution of the sample during the 

preparation and/or analysis process. The analytical result taken from a laboratory instrument is 

multiplied by the DF to determine the final undiluted sample results. 

 The addition of MS to the Sample ID represents a Matrix Spike. An aliquot of an actual sample is 

spiked with a known amount of analyte so that a percent recovery value can be determined. This shows 

what effect the sample matrix may have on the target analyte, i.e. whether or not anything in the sample 

matrix interferes with the analysis of the analyte(s). 

 The addition of MSD to the Sample ID represents a Matrix Spike Duplicate. Prepared in the same 

manner as an MS, the use of duplicate matrix spikes allows further confirmation of laboratory quality 

by showing the consistency of results gained by performing the same steps multiple times. 

 The addition of LD to the Sample ID represents a Laboratory Duplicate. The analyst prepares an 

additional aliquot of sample for testing and the results of the duplicate analysis are compared to the 

initial result. The result should have a difference value of within 10% of the initial result (if the results 

of the original analysis are greater than the LOQ). 

 The addition of AD to the Sample ID represents an Alternate Dilution. The analyst prepares an 

additional aliquot at a different dilution factor (usually double the initial factor). This analysis helps 

confirm that no additional compound is present and coeluting or sharing absorbance with the analyte of 

interest, as they would have a different response/absorbance than the analyte of interest. 

 The Sample ID LCS represents a Laboratory Control Sample. Clean matrix, similar to the client sample 

matrix, prepared and analyzed by the laboratory using the same reagents, spiking standards and 

procedures used for the client samples. The LCS is used to assess the control of the laboratory’s 

analytical system. Whenever spikes are prepared for our client projects, two extra spikes are prepared. 

The extras (randomly chosen) are labeled with the associated project number and kept in-house at the 

appropriate temperature conditions. When the project samples are received for analysis, the LCSs are 

analyzed to confirm that the analyte could be recovered from the media, separate from the samples 

which were used on the project and which may have been affected by source matrix, sample collection 

and/or sample transport. 

EA# 0810-26 Page 17 of 28
General Reporting Notes 

(continued) 

 Significant Figures: Where the reported value is much greater than unity (1.00) in the units expressed, 

the number is rounded to a whole number of units, rather than to 3 significant figures. For example, a 

value of 10,456.45 ug catch is rounded to 10,456 ug. There are five significant digits displayed, but no 

confidence should be placed on more than two significant digits. 

 Manual Integration: The data systems used for processing will flag manually integrated peaks with 

an “M”. There are several reasons a peak may be manually integrated. These reasons will be identified 

by the following two letter designations. The peak was not integrated by the software “NI”, the peak 

was integrated incorrectly by the software “II” or the wrong peak was integrated by the software 

“WP”. These codes will accompany the analyst’s manual integration stamp placed next to the 

compound name. 

EA# 0810-26 Page 18 of 28
Sample Custody

EA# 0810-26 Page 19 of 28
EA# 0810-26 Page 20 of 28
EA# 0810-26 Page 21 of 28
EA# 0810-26 Page 22 of 28
EA# 0810-26 Page 23 of 28
EA# 0810-26 Page 24 of 28
EA# 0810-26 Page 25 of 28
EA# 0810-26 Page 26 of 28
EA# 0810-26 Page 27 of 28
This Is The Last Page

Of This Report.

EA# 0810-26 Page 28 of 28