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# Introduction to Visual Sample Plan & Applications - PowerPoint PPT Presentation

DQO Training Course Day 3 M odule 21. Introduction to Visual Sample Plan & Applications. Presenter: Sebastian Tindall. (60 minutes). Key Points. VSP is a user-friendly, graphical software tool for evaluating trade-offs between decision errors, sampling costs, and remediation costs

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Presentation Transcript

Day 3

Module 21

### Introduction to Visual Sample Plan& Applications

Presenter: Sebastian Tindall

(60 minutes)

• VSP is a user-friendly, graphical software tool for evaluating trade-offs between decision errors, sampling costs, and remediation costs

• Alternative sampling designs can be reviewed and evaluated in real-time

The purpose of VSP is to make environmental sampling design reliable, cost effective, and as simple as possible - but not simpler

• Open a site map

• Select a sample area

• Select a sampling design

• Specify error rates, action level, standard deviation, etc.

• Note results on map, graph, and costs

• Iterate with various designs until optimal

• Take samples at x, y coordinates provided

• Simple random sampling of one acre field

• Systematic grid with random start sampling of one acre field

• Hot spot sampling of one acre field

• Optional: “stratified” simple random sampling

Now we will see a demonstration of

Visual Sample Plan, version 2.0

• VSP helps us understand the consequences of our assumptions

• VSP makes us more efficient in evaluating and utilizing environmental sampling designs

• GIGO; VSP depends on you for input

• VSP is helpless without domain-specific knowledge and professional judgement

http://dqo.pnl.gov/vsp/

http://www.hanford.gov/dqo/

Brent Pulsipher, ManagerStatistical & Quantitative SciencesPacific Northwest National LaboratoryRichland, WA 99352(509) [email protected]

John Wilson, ProgrammerStatistical & Quantitative SciencesPacific Northwest National LaboratoryGrand Junction, CO 81503 (970) 270-2998 [email protected]

Thank you

Questions?