Environmental drivers gerard o leary environmental protection agency 10 th october 2012
Sponsored Links
This presentation is the property of its rightful owner.
1 / 24

Environmental Drivers Gerard O’Leary Environmental Protection Agency 10 th October 2012 PowerPoint PPT Presentation

  • Uploaded on
  • Presentation posted in: General

Environmental Drivers Gerard O’Leary Environmental Protection Agency 10 th October 2012. Summary. Framework for the protection of the biology , chemistry , and natural physical form of all surface and groundwaters and dependent waterbodies . Water Framework Directive (WFD) .

Download Presentation

Environmental Drivers Gerard O’Leary Environmental Protection Agency 10 th October 2012

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Environmental DriversGerard O’LearyEnvironmental Protection Agency10th October 2012


Frameworkfor the protection of the biology, chemistry, and natural physical form of all surface and groundwaters and dependent waterbodies.



Directive (WFD)

Water Framework Directive

WFD aims to achieve Integration of

  • Environmental objectives (Quality, quantity & ecology)

  • All water resources (freshwater, coastal, wetlands)

  • Disciplines & Data (biology, chemistry, hydrology, economics)

  • Legislation (Nitrates, Urban Waste water, Shellfish Regs)

  • Decision making (Local, River Basin, National)

  • Measures (land use, management, pricing)

  • Stakeholders (local authorities, NGOs, civil society)

    So, our WFD approach should reflect this integration !

Water Quality in Ireland

  • Groundwater (EPA data)

    • 85% of groundwater aquifers are at Good status

    • 14% of GW area ‘poor’ due to Nitrogen and Phosphate

  • Rivers

    • 71%is at High or Good status,

    • 29% river channel is polluted

  • Lakes

    • 42% of lake area is High or Good status

    • 58% of lake area polluted, mainly by Phosphorus

  • Estuarine and Coastal Waters

    • 64% of bays are at High or Good status,

    • 15% polluted

Comparison of Water Q in Ireland

with other countries

(based on EEA website data)

Urban and Domestic Wastewater


Level of treatment provided

  • ~ 92% of waste water receives at least secondary treatment (based on p.e.)

  • Significant improvement since 2001

  • Effluent quality at all 2° plants

Over 530 urban areas are subject to the licensing system.

  • Discharges from all 432 secondary treatment plants assessed against effluent quality and monitoring standards/guide values.

  • 58% of plants complied with the standards/guide values.

Key pressures from waste water

  • Observed impacts (WFD - Improve):

  • 10 linked with bathing water failures or seriously polluted river sites

  • 52 linked with moderately or slightly polluted river sites

  • Vulnerable receptors (WFD – Protect):

    - 35 prioritised for protection of freshwater pearl mussel

    - 55 are key pressures on designated shellfish waters

Cause of reported incidents

Key pressures from waste water

  • Poor infrastructure (UWWTD)

  • 18 large urban areas lack the mandatory treatment required by Directive.

  • In total 36 urban areas (>500 p.e.) discharge waste water without treatment.

  • Data on SWO’s is lacking and many do not meet specified criteria.

Drinking Water

Quality of Drinking Water



E.coli: Outcomes

New EPA Enforcement Powers

Chemical Parameters –THMs

100 ug/l THM limit

Comparison of no. of public water supplies where E.Coli or THM’s were detected at least once from 2004 to 2010

The customer



Concluding remarks (sewage)

  • Move to a Preventative maintenance programme

  • Management of sewage sludge

  • Bathing Water Regulations and beach profiles

  • Waste Water Odour and Noise Regulations

  • Licensing of effluent discharges to sewers

Concluding remarks contd (drinking water)

  • Source protection measures

  • The moving from monitoring to risk management (i.e. implementation of WSPs)

  • Management of drinking water sludge

  • Vulnerability of drinking plants to env. challenges (e.g. poor weather and VTEC)

  • Improvements in operational practices (e.g. responses to alarms)

  • Communication to the public – availability of information

Thank you

WSP steps - Summary


1Assemble the WSP team

System assessment

2Describe the water supply system

3Identify hazards and hazardous events and assess the risks

4Determine and validate control measures, reassess and prioritise the risks

5Develop, implement and maintain an improvement programme

6Define monitoring of the control measures (operational monitoring)

7 Verify the effectiveness of the WSP

Management and communication

8Prepare management procedures

9 Develop supporting programmes

Feedback and improvement

10Plan and carry out periodic review of the WSP

11Revise the WSP following an incident

  • Login