Download presentation
Presentation is loading. Please wait.
Published byEdward Mathews Modified over 9 years ago
1
Multi-Agency Radiological Laboratory Analytical Protocols Manual: MARLAP Presentation to the Radiation Advisory Committee/Science Advisory Board April 23, 2002 Presenter: John Griggs U.S. EPA
2
Description of MARLAP A multi-agency guidance manual for project planners and managers and radioanalytical laboratories Participants include: EPA, DOE, NRC, DOD, NIST, USGS, FDA, Commonwealth of Kentucky, State of California
3
Consequences of Current Lack of Guidance Existing data frequently not adequate for decision making Increased likelihood of repeated analyses and additional cost Potential erosion of public confidence in work performed at sites
4
Goal of MARLAP Ultimate goal of MARLAP is to provide guidance and a framework: to assure that laboratory radioanalytical data meet a program's or project's specific needs and requirements
5
MARLAP Objectives Providing a framework and an information resource for using a performance-based approach for radioanalytical laboratory work Promoting a directed planning process involving radioanalytical laboratory expertise Providing guidance on how to link project planning, implementation and assessment from an analytical perspective
6
MARLAP Objectives (cont'd) Making collective knowledge and experience in radioanalytical laboratory work widely available Providing guidance on obtaining and evaluating laboratory services
7
MARLAP Written for project managers and planners and radioanalytical laboratory personnel Consistent with relevant guidance such as ISO, ANSI, ASTM, and agency documents Performance-based approach instead of a prescribed approach
8
Data Collection Activities Which MARLAP Supports Cleanup of Contaminated Sites Environmental Monitoring Waste Management Site Characterization Post-Accident Response Background Studies
9
DQOs and MQOs Data Quality Objectives (DQOs) Outputs of a directed planning process Address sampling and analytical uncertainties Measurement Quality Objectives (MQOs) Project-specific requirement for select analytical parameters (e.g., method uncertainty, detection limit) Analytical portion of the DQOs
10
MQOs Example Analytical Parameters Method Uncertainty Method’s Detection Capability Method’s Quantification Capability Example MQO A standard uncertainty of 0.10 pCi/g or less is required at the action level of 1.0 pCi/g
11
Role of MQOs Method selection and evaluation Criteria for method selection Basis for method performance demonstration Ongoing data and performance evaluation Criteria for QC and PE samples Criteria for select sample parameters (e.g., measurement uncertainty) Final data evaluation Criteria for data validation Analytical criteria for data quality assessment (DQA)
12
Deriving MQOs from DQOs Key inputs to the process Action level Gray region Information on matrix and analyte Establishing MQOS – MARLAP provides: Mathematical framework General rules and recommendations
13
Manual Outline Part 1 Ch.1 Introduction Ch.2 Project Planning Process Ch.3 Key Analytical Planning Issues Ch.4 Project Plan Documents Ch.5 Obtaining Laboratory Services Ch.6 Selection and Application of an Analytical Method Ch.7 Evaluating Methods and Laboratories Ch.8 Radiochemical Data Verification and Validation Ch.9 Data Quality Assessment
14
Manual Outline Part 2 Ch.10 Field and Sampling Issues Ch.11 Sample Receipt, Inspection and Tracking Ch.12 Laboratory Sample Preparation Ch.13 Sample Dissolution Ch.14 Separation Techniques Ch.15 Nuclear Counting Instrumentation Ch.16 Instrument Calibration and Source Preparation Ch.17 Data Acquisition, Reduction and Reporting Ch.18 Laboratory Quality Control Ch.19 Measurement Statistics Ch.20 Laboratory Waste Management
15
Manual Review Schedule Internal federal/state February-July 2000 agency reviews completed Manual was revised based July 2001 on 2,000+ review comments Available for peer and Currently underway public review
16
Next Steps Revise manual based on public and peer review comments Develop an Executive Summary – “MARLAP Roadmap” Finalize glossary Develop implementation tools Training courses Software programs Detailed example scenarios
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.