1. Storm water overflows study
European Commission
Directorate General for Environment
Unit C.2 - Marine Environment & Water Industry
Bruno Rakedjian x

2. WHAT WE KNOW ABOUT STORM WATER OVERFLOWS
POTENTIAL IMPACT OF POLLUTED STORM WATER OVERFLOWS
Human microbiological contamination (shelfish, bathing water, water leisure activities,…)
Animal microbiological contamination (animal watering,…)
Fish mortality (lack of oxygen)
Animal or plant mortalities (suffocation by excess of solid matter)
Nutrient, chemical contamination in water bodies
Litter source (from the sewage but also from impervious surfaces)
...

3. WHAT WE KNOW ABOUT STORM WATER OVERFLOWS
Polluted storm water overflows have to be reduced in order to reach the objectives of the directives, Convention and Commission for a better environment and health

4. OBJECTIVES OF THE STUDY
Study mainly focused on storm water overflows from combine waste water collecting systems and treatment plants
The Commission wants to know better the current situation

5. OBJECTIVES OF THE STUDY
Assessment of storm water overflows in relation to EU regulation and International Convention and Commission + comparison with USA
Assessment of the specific national regulation and guidance
Assessement of the situation of storm water overflows in each MS (monitoring in place or not, volume of waste water discharged due to storm water overflows,…)
Assessment of the impacts of storm water overflows through scientific studies

6. Result of the study
Complete and layman report concerning each part of the study
Easier access to EU and national regulation concerning this topic which could help MS to improve their own regulation
Depending from the findings proposal to go forward and to improve the situation T

7. Thank you for your attentionx
Thank you for your attention