1. Water Quality Trends and Threats in Northern Ireland Donnacha Doody Acknowledgement: Water Framework Directive Data Provided by NIEA

2. Overview What are the current water quality trends? What are the sources of phosphorus?

3. What are the Current Trends?

4. Soluble Reactive P Trends in NI SRP= Soluble Reactive P

5. Range Impacts of Waterbodies E.g Contaminants Hydromorphology Sediment Invasive Species Drainage Phosphorus

6. River-Eutrophication Impacts 39% Below Good Status

7. Summary-Water Quality HighGoodModeratePoorBadNo Data 32.929.624.24.009.3 % of points (mg /l) ≤ 0.02 >0.02- ≤ 0.1>0.1- ≤ 0.5>0.5 - ≤1>1 30.552.516.60.40 % of Waterbodies in each WFD Category based on SRP SRP in Northern Ireland rivers 28% below Good Status 69.5% above 0.02mg/l

8. What are the sources of P?

9. Contribution of Sectors National Scale Small OWWTW - (including septic tanks) Contribute 15% to national annual P loads During summer months this can be > 50%

10. Contribution of Sectors Catchment Scale

11. National Phosphorus Surplus P Surplus Yearkg P/ha 2005 14.4 2006 14.0 2007 10.9 2008 8.7 2009 9.1 2010 10.9 2011 9.5 2012 10.4 2013 12.3 2014 11.3

12. Impact of P Loss from Soils Over the past 10 years there has been a significant increase of 0.31 mg Olsen-P/l/yr identified across NI.

13. Phosphorus Loss in Runoff Index 2 Index 3 Index 4

14. Phosphorus Loss in Runoff Index 2 Index 3 Index 4

15. Contribution of Slurry Applications Slurry No Slurry

16. Summary Challenges for nutrient management 1.Sensitivity of waterbodies 2.High soil P values 3.High frequency of runoff Way forward 1.Catchment based approach 2.Targeted action

17. Thank You Any Question?