Page 73 - Freshwater-Biology-and-Ecology-Handbook

The results of intercalibration are described in ‘Decisions’ published in the
Official Journal. These documents list the High-Good and Good-Moderate
boundaries for each quality element in each common water body type
that has been intercalibrated successfully by each Member State, with a
summary of the common intercalibration types and the Member States
that have intercalibrated them.

They are issued after each phase of intercalibration has been completed
and include the results of previous intercalibration phases that remain in
force (ie those that have not been replaced by intercalibrations for revised
biological assessment methods). Despite their official nature, they provide
a useful summary of the state of intercalibration.

The latest decision document is Commission Decision (EU) 2018/229
of 12 February 2018 (Figure 1.22) establishing, pursuant to Directive
2000/60/EC of the European Parliament and of the Council, the values
of the Member State monitoring system classifications as a result
of the intercalibration exercise and repealing Commission Decision
2013/480/EU (24) http://eur-lex.europa.eu/legal-content/EN/
TXT/?qid=1519131448747&uri=CELEX:32018D0229
Figure 1.22
The current official intercalibration decision
document, covering intercalibration up to and
including Phase 3, issued February 2018 (24)

To date there have been three phases of intercalibration within the EU river basins. Details about the specific methods used for
intercalibration are provided in technical reports. For Phase 1, there was a technical report for each water body category: lakes,
rivers, and transitional and coastal waters. These documents were accompanied by technical annexes that are, unfortunately,
no longer available on the web.
For Phase 2, more detailed technical reports have been produced for each quality element in each water body category. All
the technical reports for Phase 1 and Phase 2 are published on the EU Law and Publications web pages https://publications.
europa.eu/en/home, search for ‘intercalibration technical report Technical reports for Phase 3 are in preparation.

Figure 1.23 Figure 1.24
Intercalibration technical reports for Phase 1 intercalibration for rivers and for lakes (26) Example front cover for a Phase 2
intercalibration technical report (27)

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