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Guidance for Data Quality Objectives Process: EPA QA/G-4: August 2000

This document is intended for project managers, technical staff, and others who wish to use the DQO process to design data collection to support decision making.

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Guidance on Systematic Planning Using the Data Quality Objectives Process: EPA QA/G-4 (PDF)(87 pp, 1 MB, February 2006, EPA/240/B-06/001)
Provides a standard working tool for project managers and planners to develop DQO for determining the type, quantity, and quality of data needed to reach defensible decisions or make credible estimates.