(en anglais seulement)

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Summary

This document provides required elements for both "Tier 1" and "Tier 2" methods for evaluating hydrocarbons under the Atlantic RBCA process, thereby helping to ensure inter-laboratory comparability. The methods are as closely aligned as possible to ensure the best possible data comparability and to enhance the efficiency of the sample preparation steps.

  • Tier 1 method:

    An initial evaluation method that assesses whether the total petroleum hydrocarbon (TPH) concentration minus BTEX has exceeded a generic risk-based screening level (known as a "Tier 1 RBSL").
  • Tier 2 method:

    An aromatic/aliphatic fractionation method that provides additional information on the nature of the total petroleum hydrocarbons within various carbon number ranges.

Disclaimer:

This document provides guidelines for the analysis of Petroleum Hydrocarbons in water and soil as part of Atlantic RBCA site remediation methodology. It is not intended to be a detailed laboratory procedure, but rather to outline required and performance-based elements of any method used.

The Atlantic RBCA Spreadsheet System software, developed by Groundwater Services Inc. (GSI), has been accepted by the four Atlantic Provinces for development of risk-based corrective action solutions at sites impacted by petroleum hydrocarbons. Use of the Atlantic RBCA software for any other chemicals must be approved on a case by case basis by the province in question.

This document was created by the PIRI Analytical Laboratory Sub-committee in response to terms of reference outlined by the Atlantic PIRI committee. The document is still under peer-review, and as such is will be a continually evolving document as experience with the method and various sample types increases.

A detailed method with specific laboratory procedures that can be used to meet these guidelines will be available in the near future.

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Draft Guidelines for Laboratories
(en anglais seulement)

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