J24033-1 Fl_L2 Final Report.pdf

ANALYTICAL REPORT
Job Number: 660-24033-1
Job Description: 6631 12th Ter. N
For:
ARCADIS U.S., Inc.
14055 Riveredge Drive
Suite 400
Tampa, FL 33637
Attention: Mr. Gus Suarez
_____________________________________________
Natalie Tafuni
Project Manager I
[email protected]
07/16/2008
Methods: FDEP, DOH Certification #: E84282, E81005 These test results meet all the requirements of NELAC unless
specified in the case narrative. All questions regarding this test report should be directed to the TestAmerica Project
Manager who signed this test report. The estimated uncertainty associated with these reported results is available upon
request. The results contained in this test report relate only to these samples included herein.
TestAmerica Laboratories, Inc.
TestAmerica Tampa 6712 Benjamin Road, Suite 100, Tampa, FL 33634
Tel (813) 885-7427 Fax (813) 885-7049 www.testamericainc.com
Page 1 of 21
Job Narrative
660-J24033-1
Comments
No additional comments.
Receipt
All samples were received in good condition within temperature requirements.
8260C SIM
The PQL(practical quantitation level, or RL) standard run with this sample was biased high due to instrument carryover. The standard was
run a second time, but failed due to a bad purge. The standard was run a third time and was acceptable. The third run was within 24
hours of sample injection, but was outside of 12 hour 8260 tune clock. The tune standard following the third run met all criteria.
Page 2 of 21
EXECUTIVE SUMMARY - Detections
Client: ARCADIS U.S., Inc.
Lab Sample ID
Analyte
Job Number: 660-24033-1
Client Sample ID
Result / Qualifier
Reporting
Limit
No Detections
TestAmerica Tampa
Page 3 of 21
Units
Method
METHOD SUMMARY
Client: ARCADIS U.S., Inc.
Description
Job Number: 660-24033-1
Lab Location Method
Preparation Method
Volatile Organic Compounds by GC/MS
Purge-and-Trap
TAL TAM
TAL TAM
SW846 8260B
SW846 5030B
1,4-Dioxane by SIM/Isotopic Dilution
Purge-and-Trap
TAL TAM
TAL TAM
SW846 8260C SIM/ID
SW846 5030B
Matrix: Water
Lab References:
TAL TAM = TestAmerica Tampa
Method References:
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
TestAmerica Tampa
Page 4 of 21
METHOD / ANALYST SUMMARY
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Method
Analyst
SW846 8260B
Mathew, Pinky
PM
SW846 8260C SIM/ID
Mathew, Pinky
PM
TestAmerica Tampa
Page 5 of 21
Analyst ID
SAMPLE SUMMARY
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Lab Sample ID
Client Sample ID
Client Matrix
660-24033-1
6631 12th Ter. N._071108
Water
TestAmerica Tampa
Page 6 of 21
Date/Time
Sampled
Date/Time
Received
07/11/2008 0931
07/12/2008 1000
SAMPLE RESULTS
TestAmerica Tampa
Page 7 of 21
Analytical Data
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Client Sample ID:
6631 12th Ter. N._071108
Lab Sample ID:
Client Matrix:
660-24033-1
Water
Date Sampled:
Date Received:
07/11/2008 0931
07/12/2008 1000
8260B Volatile Organic Compounds by GC/MS
Method:
Preparation:
Dilution:
Date Analyzed:
Date Prepared:
8260B
5030B
1.0
07/14/2008 1919
07/14/2008 1919
Analyte
Benzene
Bromobenzene
1,2-Dichlorobenzene
Chlorobromomethane
Dichlorobromomethane
Bromoform
Bromomethane
n-Butylbenzene
sec-Butylbenzene
tert-Butylbenzene
Carbon tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
2-Chlorotoluene
4-Chlorotoluene
Chlorodibromomethane
1,2-Dibromo-3-Chloropropane
Ethylene Dibromide
Dibromomethane
1,3-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
1,2-Dichloropropane
1,3-Dichloropropane
2,2-Dichloropropane
1,1-Dichloropropene
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethylbenzene
Hexachlorobutadiene
Isopropylbenzene
4-Isopropyltoluene
Methylene Chloride
Naphthalene
N-Propylbenzene
Styrene
1,1,1,2-Tetrachloroethane
TestAmerica Tampa
Analysis Batch: 660-64805
Result (ug/L)
0.50
0.58
0.44
0.58
0.35
0.58
2.5
0.67
0.63
0.84
0.42
0.63
2.5
0.90
1.0
0.65
0.52
0.34
2.5
0.50
0.41
0.64
0.52
2.5
0.52
0.57
0.45
0.65
0.44
0.52
0.39
0.36
0.31
0.14
0.14
0.44
0.40
0.19
0.69
4.0
2.5
0.59
0.98
0.63
Page 8 of 21
Instrument ID:
BVMJ GC/MS
Lab File ID:
2JG1415.D
Initial Weight/Volume:
5 mL
Final Weight/Volume:
5 mL
Qualifier
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
MDL
0.50
0.58
0.44
0.58
0.35
0.58
2.5
0.67
0.63
0.84
0.42
0.63
2.5
0.90
1.0
0.65
0.52
0.34
2.5
0.50
0.41
0.64
0.52
2.5
0.52
0.57
0.45
0.65
0.44
0.52
0.39
0.36
0.31
0.14
0.14
0.44
0.40
0.19
0.69
4.0
2.5
0.59
0.98
0.63
PQL
1.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
4.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
5.0
1.0
2.0
1.0
Analytical Data
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Client Sample ID:
6631 12th Ter. N._071108
Lab Sample ID:
Client Matrix:
660-24033-1
Water
Date Sampled:
Date Received:
07/11/2008 0931
07/12/2008 1000
8260B Volatile Organic Compounds by GC/MS
Method:
Preparation:
Dilution:
Date Analyzed:
Date Prepared:
8260B
5030B
1.0
07/14/2008 1919
07/14/2008 1919
Analyte
1,1,2,2-Tetrachloroethane
Tetrachloroethene
Toluene
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethene
Trichlorofluoromethane
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl chloride
o-Xylene
Acetone
2-Butanone (MEK)
4-Methyl-2-pentanone (MIBK)
Carbon disulfide
2-Hexanone
Methyl tert-butyl ether
m-Xylene & p-Xylene
Analysis Batch: 660-64805
Result (ug/L)
0.15
0.50
0.51
0.77
0.58
0.46
0.47
0.50
2.5
0.18
0.86
0.54
0.50
0.50
9.9
8.4
3.8
0.85
4.4
0.44
0.60
Surrogate
Toluene-d8 (Surr)
4-Bromofluorobenzene
Dibromofluoromethane
%Rec
110
117
113
TestAmerica Tampa
Page 9 of 21
Instrument ID:
BVMJ GC/MS
Lab File ID:
2JG1415.D
Initial Weight/Volume:
5 mL
Final Weight/Volume:
5 mL
Qualifier
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
MDL
0.15
0.50
0.51
0.77
0.58
0.46
0.47
0.50
2.5
0.18
0.86
0.54
0.50
0.50
9.9
8.4
3.8
0.85
4.4
0.44
0.60
PQL
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
20
10
10
1.0
10
1.0
2.0
Acceptance Limits
77 - 122
74 - 126
70 - 130
Analytical Data
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Client Sample ID:
6631 12th Ter. N._071108
Lab Sample ID:
Client Matrix:
660-24033-1
Water
Date Sampled:
Date Received:
07/11/2008 0931
07/12/2008 1000
8260C SIM/ID 1,4-Dioxane by SIM/Isotopic Dilution
Method:
Preparation:
Dilution:
Date Analyzed:
Date Prepared:
8260C SIM/ID
5030B
1.0
07/14/2008 1919
07/14/2008 1919
Analyte
1,4-Dioxane
TestAmerica Tampa
Analysis Batch: 660-64786
Result (ug/L)
0.54
Page 10 of 21
Instrument ID:
BVMJ GC/MS
Lab File ID:
2JG1415.D
Initial Weight/Volume:
5 mL
Final Weight/Volume:
5 mL
Qualifier
U
MDL
0.54
PQL
1.0
DATA REPORTING QUALIFIERS
Client: ARCADIS U.S., Inc.
Lab Section
Job Number: 660-24033-1
Qualifier
Description
U
Indicates that the compound was analyzed for but not
detected.
GC/MS VOA
TestAmerica Tampa
Page 11 of 21
QUALITY CONTROL RESULTS
TestAmerica Tampa
Page 12 of 21
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Surrogate Recovery Report
8260B Volatile Organic Compounds by GC/MS
Client Matrix: Water
TOL
%Rec
BFB
%Rec
DBFM
%Rec
110
117
113
MB 660-64805/3
101
108
105
LCS 660-64805/1
103
110
107
LCSD 660-64805/2
98
105
101
660-24046-A-1 MS
108
116
118
660-24046-A-1 MSD
112
113
119
Lab Sample ID
Client Sample ID
660-24033-1
6631 12th Ter.
N._071108
Surrogate
TOL = Toluene-d8 (Surr)
BFB = 4-Bromofluorobenzene
DBFM = Dibromofluoromethane
Acceptance Limits
77-122
74-126
70-130
TestAmerica Tampa
Page 13 of 21
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Method Blank - Batch: 660-64805
Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
MB 660-64805/3
Water
1.0
07/14/2008 1749
07/14/2008 1749
Method: 8260B
Preparation: 5030B
Analysis Batch: 660-64805
Prep Batch: N/A
Units: ug/L
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1411.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
Result
Qual
MDL
PQL
Benzene
Bromobenzene
1,2-Dichlorobenzene
Chlorobromomethane
Dichlorobromomethane
Bromoform
Bromomethane
n-Butylbenzene
sec-Butylbenzene
tert-Butylbenzene
Carbon tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
2-Chlorotoluene
4-Chlorotoluene
Chlorodibromomethane
1,2-Dibromo-3-Chloropropane
Ethylene Dibromide
Dibromomethane
1,3-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
1,2-Dichloropropane
1,3-Dichloropropane
2,2-Dichloropropane
1,1-Dichloropropene
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethylbenzene
Hexachlorobutadiene
Isopropylbenzene
4-Isopropyltoluene
Methylene Chloride
Naphthalene
0.50
0.58
0.44
0.58
0.35
0.58
2.5
0.67
0.63
0.84
0.42
0.63
2.5
0.90
1.0
0.65
0.52
0.34
2.5
0.50
0.41
0.64
0.52
2.5
0.52
0.57
0.45
0.65
0.44
0.52
0.39
0.36
0.31
0.14
0.14
0.44
0.40
0.19
0.69
4.0
2.5
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
0.50
0.58
0.44
0.58
0.35
0.58
2.5
0.67
0.63
0.84
0.42
0.63
2.5
0.90
1.0
0.65
0.52
0.34
2.5
0.50
0.41
0.64
0.52
2.5
0.52
0.57
0.45
0.65
0.44
0.52
0.39
0.36
0.31
0.14
0.14
0.44
0.40
0.19
0.69
4.0
2.5
1.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
4.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
5.0
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 14 of 21
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Method Blank - Batch: 660-64805
Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
MB 660-64805/3
Water
1.0
07/14/2008 1749
07/14/2008 1749
Method: 8260B
Preparation: 5030B
Analysis Batch: 660-64805
Prep Batch: N/A
Units: ug/L
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1411.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
Result
Qual
MDL
PQL
N-Propylbenzene
Styrene
1,1,1,2-Tetrachloroethane
1,1,2,2-Tetrachloroethane
Tetrachloroethene
Toluene
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethene
Trichlorofluoromethane
1,2,3-Trichloropropane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl chloride
o-Xylene
Acetone
2-Butanone (MEK)
4-Methyl-2-pentanone (MIBK)
Carbon disulfide
2-Hexanone
Methyl tert-butyl ether
m-Xylene & p-Xylene
0.59
0.98
0.63
0.15
0.50
0.51
0.77
0.58
0.46
0.47
0.50
2.5
0.18
0.86
0.54
0.50
0.50
9.9
8.4
3.8
0.85
4.4
0.44
0.60
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
0.59
0.98
0.63
0.15
0.50
0.51
0.77
0.58
0.46
0.47
0.50
2.5
0.18
0.86
0.54
0.50
0.50
9.9
8.4
3.8
0.85
4.4
0.44
0.60
1.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
20
10
10
1.0
10
1.0
2.0
Surrogate
Toluene-d8 (Surr)
4-Bromofluorobenzene
Dibromofluoromethane
% Rec
Acceptance Limits
101
108
105
77 - 122
74 - 126
70 - 130
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 15 of 21
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Lab Control Spike/
Lab Control Spike Duplicate Recovery Report - Batch: 660-64805
Method: 8260B
Preparation: 5030B
LCS Lab Sample ID: LCS 660-64805/1
Client Matrix:
Water
Dilution:
1.0
Date Analyzed:
07/14/2008 1641
Date Prepared:
07/14/2008 1641
Analysis Batch: 660-64805
Prep Batch: N/A
Units: ug/L
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1408.D
Initial Weight/Volume:
5 mL
Final Weight/Volume:
5 mL
LCSD Lab Sample ID: LCSD 660-64805/2
Client Matrix:
Water
Dilution:
1.0
Date Analyzed:
07/14/2008 1703
Date Prepared:
07/14/2008 1703
Analysis Batch: 660-64805
Prep Batch: N/A
Units: ug/L
Instrument ID:
BVMJ GC/MS
Lab File ID:
2JG1409.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
LCS
Benzene
Chlorobenzene
1,1-Dichloroethene
Toluene
Trichloroethene
104
84
98
85
103
% Rec.
LCSD
110
88
105
89
105
Limit
RPD
RPD Limit
62 - 135
72 - 127
46 - 147
68 - 131
56 - 143
5
4
7
5
2
37
22
30
33
35
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 16 of 21
LCS Qual LCSD Qual
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Matrix Spike/
Matrix Spike Duplicate Recovery Report - Batch: 660-64805
Method: 8260B
Preparation: 5030B
MS Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
660-24046-A-1 MS
Water
1.0
07/15/2008 0141
07/15/2008 0141
Analysis Batch: 660-64805
Prep Batch: N/A
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1432.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
MSD Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
660-24046-A-1 MSD
Water
1.0
07/15/2008 0204
07/15/2008 0204
Analysis Batch: 660-64805
Prep Batch: N/A
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1433.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
MS
Benzene
Chlorobenzene
1,1-Dichloroethene
Toluene
Trichloroethene
114
88
109
91
112
% Rec.
MSD
115
88
110
92
111
Limit
RPD
RPD Limit
62 - 135
72 - 127
46 - 147
68 - 131
56 - 143
1
0
1
1
1
37
22
30
33
35
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 17 of 21
MS Qual MSD Qual
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Method Blank - Batch: 660-64786
Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
MB 660-64786/3
Water
1.0
07/14/2008 1749
07/14/2008 1749
Method: 8260C SIM/ID
Preparation: 5030B
Analysis Batch: 660-64786
Prep Batch: N/A
Units: ug/L
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1411.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
Result
Qual
MDL
PQL
1,4-Dioxane
0.54
U
0.54
1.0
Lab Control Spike/
Lab Control Spike Duplicate Recovery Report - Batch: 660-64786
Method: 8260C SIM/ID
Preparation: 5030B
LCS Lab Sample ID: LCS 660-64786/1
Client Matrix:
Water
Dilution:
1.0
Date Analyzed:
07/14/2008 1641
Date Prepared:
07/14/2008 1641
Analysis Batch: 660-64786
Prep Batch: N/A
Units: ug/L
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1408.D
Initial Weight/Volume:
5 mL
Final Weight/Volume:
5 mL
LCSD Lab Sample ID: LCSD 660-64786/2
Client Matrix:
Water
Dilution:
1.0
Date Analyzed:
07/14/2008 1703
Date Prepared:
07/14/2008 1703
Analysis Batch: 660-64786
Prep Batch: N/A
Units: ug/L
Instrument ID:
BVMJ GC/MS
Lab File ID:
2JG1409.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
LCS
% Rec.
LCSD
1,4-Dioxane
100
93
Limit
RPD
RPD Limit
50 - 150
7
50
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 18 of 21
LCS Qual LCSD Qual
Quality Control Results
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Matrix Spike/
Matrix Spike Duplicate Recovery Report - Batch: 660-64786
Method: 8260C SIM/ID
Preparation: 5030B
MS Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
660-24046-A-1 MS
Water
1.0
07/15/2008 0141
07/15/2008 0141
Analysis Batch: 660-64786
Prep Batch: N/A
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1432.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
MSD Lab Sample ID:
Client Matrix:
Dilution:
Date Analyzed:
Date Prepared:
660-24046-A-1 MSD
Water
1.0
07/15/2008 0204
07/15/2008 0204
Analysis Batch: 660-64786
Prep Batch: N/A
Instrument ID: BVMJ GC/MS
Lab File ID:
2JG1433.D
Initial Weight/Volume: 5 mL
Final Weight/Volume: 5 mL
Analyte
MS
1,4-Dioxane
75
% Rec.
MSD
97
Limit
RPD
RPD Limit
50 - 150
26
50
Calculations are performed before rounding to avoid round-off errors in calculated results.
TestAmerica Tampa
Page 19 of 21
MS Qual MSD Qual
Page 20 of 21
Login Sample Receipt Check List
Client: ARCADIS U.S., Inc.
Job Number: 660-24033-1
Login Number: 24033
Creator: Williams, Jennifer
List Number: 1
List Source: TestAmerica Tampa
Question
T / F/ NA
Radioactivity either was not measured or, if measured, is at or below
background
The cooler's custody seal, if present, is intact.
The cooler or samples do not appear to have been compromised or
tampered with.
Samples were received on ice.
Cooler Temperature is acceptable.
Cooler Temperature is recorded.
COC is present.
COC is filled out in ink and legible.
COC is filled out with all pertinent information.
There are no discrepancies between the sample IDs on the containers and
the COC.
Samples are received within Holding Time.
Sample containers have legible labels.
Containers are not broken or leaking.
Sample collection date/times are provided.
Appropriate sample containers are used.
Sample bottles are completely filled.
There is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
VOA sample vials do not have headspace or bubble is <6mm (1/4") in
diameter.
If necessary, staff have been informed of any short hold time or quick TAT
needs
Multiphasic samples are not present.
Samples do not require splitting or compositing.
N/A
TestAmerica Tampa
Comment
N/A
True
True
True
True
True
True
True
True
True
True
True
True
True
True
True
True
True
True
True
Page 21 of 21
Rec. @ 4, 4 degrees C. CU-04