Quality Assurance Project Plan Including Sampling And Analysis Plan (Page 44 of 67) in pdf

Hunters Point Shipyard Parcel F ESTCP Demonstration Plan

Appendix A: Quality Assurance Project Plan

standards are provided in laboratory SOPs. All new calibration or spiking solutions are analyzed against a

previously accepted standard to verify that the concentrations of each parameter are within 15% of the

verified stock.

•

Prior to analysis, a five- or six-point quadratic calibration curve that spans the expected

concentration range will be generated by GC/ECD to quantify the individual PCB congeners. The

correlation coefficient for the initial calibration must be r≥0.995.

•

A mid-level calibration standard will be re-analyzed every 24 hours (typically 10-12 samples).

The calibration check standard concentration must be ≤25% from true check standard

concentration. If this calibration check fails corrective action will be performed. Affected samples

will be reanalyzed according to the criteria and procedures defined in the SOP.

•

Sample quantification is performed by the method of internal standards using the recovery

internal standard (RIS) compounds as the quantification internal standards. Surrogate compound

recoveries are determined for the surrogate internal standard (SIS) compounds. For tissue

samples, target analyte concentrations are reported on a wet weight basis.

A.3.8

Inspection/Acceptance of Supplies and Consumables

Prior to use, supplies and consumables will be inspected and tested to ensure that they conform to the

required level of quality. Any defective material will be replaced before the sampling event or before

analysis begins. Each laboratory must maintain an inventory of all chemicals, reagents, purchased

standards solutions, and solvents. All reagents and solutions must be reagent grade or better.

Certified clean containers (I-Chem or equivalent) will be used as sample containers in the field. Prior to

use in the field, the containers will be inspected. Any defective material will be replaced before the sam-

pling event begins. Certificates of analysis provided with the containers will be retained by the laboratory

or field sample custodian, depending upon whether containers are shipped from the lab or drop-shipped

directly to the field by the supplier. Appropriate materials, bubble wrap, plastic bags, tape, and supplies

will be available for packing samples to avoid breakage during transport.

In the laboratory, tissue samples will be homogenized and transferred to certified, clean I-Chem or

equivalent glass jars (PCB congeners). Prior to use, the containers will be inspected. Any defective

material will be replaced before homogenization and aliquotting begins. The laboratory sample custodian

will retain certificates of analysis provided with the containers. Appropriate materials, bubble wrap,

plastic bags, tape, and supplies will be available for packing samples to avoid breakage during transport.

A.3.9

Nondirect Measurements

Any critical data generated from the archived tissue sample splits will be incorporated into the body of

data that have been collected at HPS in support of the FS.

A.3.10 Data Management

Data generated in support of the ESTCP DP will be tracked and reviewed by the appropriate Research

Leader. Critical data generated by BDO in support of the ESTCP DP are tracked and reviewed by the

BDO Chemistry Laboratory Leader. After review and validation of the field and laboratory data reports,

critical data will be entered into the regional database system in place at BDO. The database will provide

data for the preparation of reports and graphics. The data management process for the study has been

designed to minimize loss and human error. Data flow will be automated to the extent practical.

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Quality Assurance Project Plan Including Sampling And Analysis Plan Page 44

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