API PUBL 4658-1997

$22.75

Methods for Measuring Indicators of Intrinsic Bioremediation: Guidance Manual

Published By	Publication Date	Number of Pages
API	1997	93

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Description

Evaluating intrinsic bioremediation at a particular site typically includes a characterization of the site's groundwater for geochemical indicators of naturally occurring biodegradation. A number of protocols offer guidance on the suite of geochemical parameters that should be included in these site characterizations, for example, dissolved oxygen (DO), nitrate, sulfate, alkalinity, etc. However, there is less guidance available on the most appropriate sampling and analytical methods for these parameters. The American Petroleum Institute (API) implemented a project to evaluate and compare various sampling and analytical methods for these geochemical parameters. Performance data on various sampling methods were generated in both laboratory and field studies. The field studies also included an evaluation of field analytical methods for select parameters. The quality of the data obtained varied with the specific sampling and analytical methods used. No single sampling or analytical method was found to be the most appropriate method in every situation. Selecting the most appropriate method depends on project-specific and site-specific considerations. Factors to be considered in the selection of sampling and analytical methods include the intended data use (e.g., qualitative versus quantitative), and the associated factors of complexity, level of effort, and cost. In many cases, method selection involves a balance of data quality and cost control objectives. This document provides guidance on method selection, method implementation, and data interpretation for intrinsic bioremediation projects.

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