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ICF International / Laboratory Data Consultants

Environmental Services Assistance Team, Region 9

1337 South 46 th Street , Building 201, Richmond, CA 94804

- 4698
Phone: (510) 412

- 2300 Fax: (510) 412

- 2304

MEMORANDUM

TO: John Hillenbrand

, Remedial Projec t Manager

Private Site /DOE Section , SFD

- 8

- 2

THROUGH: Rose Fong, ESAT Ta sk Order Manager (TOM)

Quality Assurance (QA) Program, MTS

- 3

FROM: Doug Lindelof, Data Review Task Manager

Region 9 Environmental Services Assistance Team (ESAT)

ESAT Contract No. : EP

- W

- 0 6

- 0 41
Technical Direction Form No.: 00 4 05 033 Amendment 2

DATE: December 2 9 , 200 8

SUBJECT: Tier 1 Data Evaluation Memo for the Asarco Hayden project , SDGs: 0 8

- 059

,

0 8

- 169, 08

- 18 2 , 0 8

- 206 , 0 8

- 2 66 , 0 8

- 2 84

, 08

- 302, 08

- 361, 08

- 373, 08

- 394, and
0 8

- 408

SUMMARY: 4 1 Teflon air filter samples received by CHESTER LabNet were analyzed for

PM10 and select metals by X

- Ray Fluorescence (XRF)

.

A forms

- only evaluation of the data packages w as performed to identify any key analytical
issues/deficiencies af

fecting data quality. This evaluation approach is employed when in

- depth data review is not required as indicated by the data user. During this limited evaluation, areas of concern were noted (see Lett ered and Additional Comments).

The evaluation incl uded: a review of the data package for completeness, review of the chain of custody forms (against laboratory reported information, for signatures, for sample condition upon receipt by the laboratory and for sample preservation), review of holding times, r eview of QC summaries, review of blanks for contamination, random check of reported results against raw data, and a random check of raw data for interference problems or system control problems.

The following data quality issues should be noted:

A. R esult s for the following sample s are rejected and flagged “R” in the data table due to compromised filter medi a

.

SDG Sample Rejected Results
08

- 059 MY

- 12070 7 PM10 and XRF
08

- 182 MY

- 060908 PM10 and XRF
08

- 182 MY

- 051008 XRF
08

- 206 MY

- 052 8 08 PM10 and XRF
08

- 206 HS

- 052808 PM10 and XRF00 4 05 033

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08

- 284 MY

- 072108 PM10 and XRF
08

- 373 MY

- 101208 PM10 and XRF
08

- 373 HS

- 101308 PM10 and XRF
08

- 394 MY

- 102508 PM10 and XRF
08

- 394 MY

- 102808 PM10 and XRF
08

- 394 HS

- 110308 PM10 and XRF
08

- 408 HS

- 1 11508 PM10 and XRF

For PM10 analysis, t he Quality Assurance Handbook for Air Pollution Measurements Systems , Volume II: Part 1, Section 12 and , for XRF analysis, the
Method IO

- 3.3 , Section 8.3, specify that filter samples are to be checked for
invalidati ng conditions such as holes, tears, non

- uniform deposit density (NUDD), or other flaws which may affect the collection efficiency of the filter and quantitative analysis. Filters for the samples listed above contained holes and other invalidating
conditio ns as documented in the sample data sheets

.

B. The XRF result for copper in the sample listed below is rejected and flagged " R " in
the data table due to a NUDD noted on the XRF sample data sheet

.

SDG Sample Analyte
0 8

- 1 82 MY

- 05 2208 Copper

Method IO

- 3.3, S ection 8.3, specifies that a filter with a NUDD cannot be quantitatively determined by XRF.

C. The XRF analyte results for the following sample s are estimated and flagged " J " in
the data table due to a NUDD present in the sample

. If one of the analytes i n a sample cannot be quantitatively determined (as stated in Comment B) the quantitation of the other metals in the sample may not be correct.

Antimony, arsenic, barium, cadmium, chromium, cobalt, manganese, nickel, selenium, silver, and vanadium in s ample MY

- 052208 (SDG 08

- 182) are affected due to a copper NUDD.

Antimony, arsenic, barium, cadmium, chromium, cobalt, copper, manganese, nickel, selenium, silver, and vanadium in sample MY

- 1 0 22 0 8 (SDG 08

- 373) are affected due to a sulfur NUDD.

An timony, arsenic, barium, cadmium, chromium, cobalt, copper, manganese, nickel, selenium, silver, and vanadium in samples HS

- 110908 and MY

- 1 109 08 (SDG 08

- 408 ) are affected due to a zinc NUDD and bismuth NUDD, respectively.

R esults f or analytes listed above in the samples listed above are considered quantitatively uncertain.00 4 05 033

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D. The following results are estimated and flagged "J" in the data table because of duplicate results outside the ESAT ± 35 relative percent difference (RPD) QC limit.
D uplicate results that do not meet the ± 35 RPD criterion for precision a re listed
below.

SDG Sample Analyte Duplicate RPD and uncertainty
0 8

- 1 82 MY

- 0 51 3 0 8 Silver 54

. 2 ± 5 7

. 3
08

- 266 MY

- 062108 Antimony 89.2 ± 31.6
0 8

- 408 HS

- 110 908 Antimony 41

. 3 ± 2 9

. 6

R esults f or an alytes listed above in the samples listed above are considered quantitatively uncertain.

E. A ntimony, barium, cadmium, and silver results for all samples with an “HS” designation are reported without blank corrections. The laboratory indicated that, in
ord er to lower the detection limit and uncertainty for cadmium, the counting time was extended to 1440 for the sp4 analytes by using instrument protocol 9. Since blank correction values were determined using instrument protocol 6 with a counting time of 180, the resulting higher uncertainties would increase the detection limit for cadmium. In order to maintain the lower detection limit, all sp4 analytes are reported without blank correction. The effect on data quality is not known

.

Additional Comments :

1. The Chain of Custody ( COC ) record form did not specify a sample to be used for laboratory quality control (QC). As a result, the laboratory selected the QC samples. The effect on data quality is not known.

2. For SDG 0 8

- 1 6 9

, all samples were collected on 25 mm Teflon filters . The Statement of Work (SOW) specifies samples are to be collected on 47 mm Teflon filters

. The effect on data quality is not known

.

3. For SDG 08

- 302, analytical results for Winkelman samples HS

- 080508, HS

- 080808,

HS

- 081108, HS

- 081408 , HS

- 081708, and HS

- 082008 were added to the data table by

ESAT . These results are transcribed from the laboratory’s analytical report

.

4. For SDG 0 8

- 394

, the laboratory identified sample HS

- 102208 as HS

- 1022808

. The sample ID was corrected in the data tab le to agree with the COC record form . No adverse effect on data quality is expected.

5. XRF r esults reported in μg /m 3 are calculated from a normalized 24±2.4 cubic meter sample size. No adverse effect on data quality is expected.00 4 05 033

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The data table i s prov ided electronically only due to its size

.

This report has been reviewed by the EPA TO M for the ESAT co ntract, whose signature appears
above.

If there are any q uestions, please contact Rose Fo ng (QA Program/EPA) at (415) 972

- 3812.00 4 05 033

- 10 2 18 /Asarco/ DR033 / ESATdataEvalMemoWithData_081229 TABLE 1B

DATA QUALIFIER DEFINITIONS FOR INORGANIC DATA REVIEW

The definitions of the following qualifiers are prepared in accordance with the document USEPA Contract Laboratory Program National Functional Guidelines for Inorganic Data Review

, October 2004.

U The an alyte was analyzed for, but was not detected above the level of the reported sample quantitation limit.

J The result is an estimated quantity. The associated numerical value is the approximate concentration of the analyte in the sample.

J+ The result is an estimated quantity, but the result may be biased high.

J

- The result is an estimated quantity, but the result may be biased low.

R The data are unusable. The sample results are rejected due to serious deficiencies in meeting Quality Control (QC) criteria. The analyte may or may not be present in the sample.

UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate and may be inaccurate or imprecise.00 4 05 033

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