1. 27™ CIS-GROUNDWATER WORKING GROUP MEETING Groundwater Watch List
Dr. Rüdiger Wolter
Federal Environment Agency
(Umweltbundesamt)
ROME, 2-3 OCTOBER 2014

2. 27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
How to identify relevant substances for Annex I or II?
For which substances do we need European wide standards (TV)?
Some substance are already regulated under European laws:
TV Annex
Pesticides 0.1 µg/l Yes I
Biocides 0.1 µg/l Yes I
Pharmaceuticals 0.1 µg/l No No
Other substances ???? No No
Which substances occur all over Europe at a significant number of sites or areas and in significant concentration.
What is a significant number of sites?
What is a significant concentration?
What is needed:
A database that is regularly feed on from member states with data on (relevant) substances found in groundwater!
Rüdiger Wolter – Groundwater Watch(ed) List

3. 27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
The need for and the aim of a Watch List is addressed in recital (4) of the groundwater directive:
(4) The need to obtain and respond to new information on other substances posing a potential risk should be acknowledged. Therefore, a watch list for pollutants of groundwater should be established under the Common Implementation Strategy for Directive 2000/60/EC of the European Parliament and of the Council (2) to increase the availability of monitoring data on substances posing a risk or potential risk to bodies of groundwater, and thereby facilitate the identification of substances, including emerging pollutants, for which groundwater quality standards or threshold values should be set.
Rüdiger Wolter – Groundwater Watch(ed) List

4. The approach should be quite simple – tiered approach:
27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
How to organise the collection of monitoring data “Watch(ed) List”?
The approach should be quite simple – tiered approach:
First Step:
Only existing monitoring data have to be delivered
Number of additional data to be delivered has be kept small
Only aggregated data need to be delivered but
Data have to be delivered in an unique and simple structure
Name of the Substance – Identification (CAS-Nr. ?)
For each substance it should be reported how many sites are analysed
Number of sites with findings above LOQ (>LOQ) up to 0.05 µg/l.
Number of sites with findings > 0.05 and 0.1 µg/l
Number of sites with findings > 0.1 and 1 µg/l
Number of sites with findings > 1 and 3 µg/l
Number of sites with findings > 3 and 10 µg/l
Number of sites with findings > 10 µg/l
In addition for each substance the LOQ should be given.
Rüdiger Wolter – Groundwater Watch(ed) List

5. 27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
Additional Information:
Please indicate whether data are from a „representative“ monitoring or a „problem oriented“ monitoring (worst case scenario).
What data should be delivered:
All data available but primarily data from regular monitoring programmes of MS or specific monitoring programmes as well as data from local authorities and water companies (raw water data – not drinking water)
Make sure, that additional data are available (e.g. sites analysed, analytical methods)
Quality of data:
MS are responsible for the quality of data. Data should be reliable (good quality).
Frequency of reporting?
A regular reporting is necessary (once a year) – when?
Data should be summarized at the end of the year.
Rüdiger Wolter – Groundwater Watch(ed) List

6. Substance or metabolite
(Example) Pharmaceuticals in Groundwater
Contact person / Institution
Name:
In GERMANY
Adress:
for the year 2013
the following data on the occurrence of
Phone:
Pharmaceuticals in groundwater are available
Fax:
Substance or metabolite
CAS
Total number of sites
Number of sites
Type of water
Year MS
Maximum concentration at sites
below (LOQ)
> LOQ to 0,05 µg/l
> 0,05 to 0,1 µg/l
> 0,1 bis 1,0 µg/l
> 1,0 bis 3,0 µg/l
> 3,0 bis 10,0 µg/l
> 10,0 µg/l
17-alpha-Estradiol
125 1
2013 DE
4-Formylaminoantipyrin
129
122 4 3
Acetbutolol
159
Amidotrizoate 24 19 2
Amidotrizoesaeure
329
297 21 9
Atenolol
393
264
beta-Sitosterol
425
Betaxolol
Bezafibrat
635
504
Bisoprolol
395
265
Bromhexin
105
Carazolol
158
Carbamazepin
962
494 27 7
Chlortetracyclin 10
Ciprofloxacin
Clarithromycin
Clenbuterol
266
Clofibrinsäure
687
501 6

7. If not - What has to be done and why?
27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
Second step: Check and summarize data
List of substances most frequently found in European groundwater (2013)
Substance or metabolite
CAS
Total number of sites
Number of sites
Type of water
Number of MS
Maximum concentration at sites
below (LOQ)
> LOQ to 0,05 µg/l
> 0,05 to 0,1 µg/l
> 0,1 bis 1,0 µg/l
> 1,0 bis 3,0 µg/l
> 3,0 bis 10,0 µg/l
> 10,0 µg/l
Amidotrizoesaeure
329
297 21 1 9
Carbamazepin
962
919 27 7
Clofibrinsäure
687
677 3 6
Amidotrizoate 24 19 2
4-Formylaminoantipyrin
129
122 4
Bezafibrat
635
633
Bisoprolol
395
394
Is such a list sufficient to put substances into annex I or II?
If not - What has to be done and why?
Rüdiger Wolter – Groundwater Watch(ed) List

8. Structure and the details of the approach have to be discussed!
27™ CIS-Groundwater Working Group Meeting – Rom 2./3. October 2014
Structure and the details of the approach have to be discussed!
Shall we start the approach with data on pharmaceuticals in groundwater as an example?
(if yes, data should be delivered till the end of 2014)
A group of volunteers has to be established to discuss further steps. (Who is ready to join the group of volunteers?)
All the members of WG GW are asked for their comments on the concept presented (07. Nov. 2014)
First draft (end of 2014)
Presentation of first results at the next meeting of WG GW
Rüdiger Wolter – Groundwater Watch(ed) List