EU Evaluation of legislation status for sediments tools – metals & organic pollutants

These tools were designed to cross-check regulatory compliance of a given sediment composition across NW European countries regulations, and therefore identify suitable or unsuitable reuse options in each country.

These two multi-criteria decision tools can help end users who have characterised their sediment to evaluate the outcome in respect to different types of legislation and legal values. It may also guide towards a possible treatment option in case of marginal non-compliance.

CEAMaS EU Evaluation of legislation status for sediments tool – metals

  1. Leaching: Leaching tests are used to evaluate the reuse of sediments as building material within the Dutch soil directive. The test protocol (NEN  7373:2004) is for non-form given building materials (smallest unit < 50 cm3), like sediments. The test collects the leachate at seven different solid to liquid ratios, and determines the total emission by a mass balance calculation. The Excel sheet can do the calculations based on the measured calculations and different L/S ratio’s. The results of the test are then compared with different national standards for leaching from non-form given building materials (Belgium, Germany and the Netherlands). The resulting table with (colour ranking) indicates if the sediment could be considered as a non-form given building material.
    1. The sheet ‘flux in time’ visualizes the concentration change in each leaching step. This helps to understand if leaching is increasing, decreasing or in steady state.
       
  2. Total concentration: Each of the CEAMaS member state countries has its own total sediment quality legislation. By filling in the measured total metal concentrations in the sediment, the Excel sheets provides a colour table with scoring for individual metals & the overall classification (based on the “one out all out” principle) based on each of the legislation standards.
  3. Groundwater & msPAF:
    1. The leaching test results on the eluate can be seen as an indicative approach for the determination of the groundwater concentration. A comparison of the leachate concentration and the Dutch groundwater standards helps to evaluate if sediment could be considered as a contamination source for the groundwater aquifer. Please note that the results are indicative, since the leaching test changes the conditions within the sediment.
    2. Ms-PAF stands for the “multi substances - Potential Affected Fraction” of organisms exposed to a mix of contaminants. The msPAF calculation is an indication of the potential ecotoxicity of a sediment. Please use Google translate in the language you prefer on: http://www.bodemrichtlijn.nl/Bibliotheek/bodemsaneringstechnieken/h-behandelen-en-bestemmen-va9446/h1-algemene-aspecten-van-behandelen-en-bestemmen-van-baggerspecie/behandelen-en-bestemmen-van-baggerspecie-wettelijk-kader-voor-bes9467. This page gives some background on the use of the ms PAF approach for sediments and soil. In this sheet, the results of the ms-PAF calculation are copied (this is done in a different tool) and ranked according to the Dutch Soil Directive maximum ms-PAF for metals. The ms-PAF is a critical parameter for reuse of sediments on land in The Netherlands

Download the multi-criteria decision tool “CEAMaS EU Evaluation of legislation status for sediments tool – metals

 

CEAMaS EU Evaluation of legislation status for sediments tool - organic pollutants

This tool uses the same principle as the total concentration tool for heavy metals, but for over eighty different organic contaminants. The only legal test system implemented until now is the Dutch Soil Directive.

Download the muti-criteria decision tool “CEAMaS EU Evaluation of legislation status for sediments tool - organic pollutants