Geological framework supporting the WSP: CAPs Experience Maurizio - - PowerPoint PPT Presentation

Geological framework supporting the WSP: CAP’s Experience Maurizio Gorla – Chief, Geology Office

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CAP’s Geological framework supporting its WSP

Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption Objective: «Protect human health from the adverse effects of any contamination of water intended for human consumption by ensuring that it is wholesome and clean»

Starting Point

CAP’s Geological framework supporting its WSP

• Revision of technical annexes: Annexes II and III
• New Annex II provides an option to perform the drinking

water monitoring in around 100,000 water supply zones in Europe in a more flexible way, a risk assessment is performed ensuring full protection of public health

Review of Drinking Water Directive

CAP’s Geological framework supporting its WSP

• Moving straight ahead to cope with the following challenges. Improving

water quality for protection of:

• Human health (DWD)
• Environment (WFD, GW Resources?)

Role of Supplier

It’s time to create a platform linking DWD and WFD!!

Gathering mandatory (legal measures) and voluntary approaches (stakeholders involvement, broadcasting information, users communitiy, etc.) aiming at better protecting GW resources and HH

CAP’s Geological framework supporting its WSP

• A new deal is coming……

Under the aegis of WSP (WHO, 2004) Multidisciplinary and multitasking Tool

Risk Assessment Knowledge of Hydrogeological/ Hydrochemical Processes PoMs Risk Management Monitoring Programs Quantity/Quality Analysis

Water Safety Plan

Multidisciplinary Approach: Role of WSP

Stratigraphy & Sedimentology Hydrogeology & Hydrochemistry Geophysics (surface & borehole)

Aquifer system’s conceptual model at basin scale

CAP’s Geological framework supporting its WSP

Multidisciplinary Approach

GeoDBs Basin scale models D.S.S. (P.I.A.)

Sustainable management of aquifers, plants and networks

CAP’s Geological framework supporting its WSP

Multidisciplinary Approach & DSS

CAP’s Geological framework supporting its WSP

Knowing the whole system

Geological units

«Sound management and

• perational

system help prevent, not simply react to, the contamination of drinking water» (O’Connor, 2002)

Working at basin scale

Milano Monza «Know your system» from ground water source to consumer (source- to-tap directive)

The more you know… the better you protect and manage

CAP’s Geological framework supporting its WSP

C A D B N S

Geophysical characterization

Working at basin scale

CAP’s Geological framework supporting its WSP

Potentiometric Maps

Shallow, Phreatic Aquifer System Deep, Confined Aquifer System

Working at basin scale

Hydrogeology & Groundwater Flow

CAP’s Geological framework supporting its WSP

1 4 Nitrate Chloride PCE Note: Current discrepancy between the DWD and derivation of Environmental Quality Standards (EQS) under the Priority Substances Directive

Too many substances… few of them monitored

Working at basin scale

Chemistry & pollutants

CAP’s Geological framework supporting its WSP

Mostly younger

Recharge zone Recharge zone

Quite older

• Ageing of GW & recharge rates
• Degree of vulnerability
• Connections SW - GW
• Catchment zones and WHPAs

Many basic issues: do not sweep them under the carpet

Working at basin scale

Quality: ionic ratios

CAP’s Geological framework supporting its WSP

16

δDeuterium Tritium (T.U.) δOxigen-18

Higher values

Younger water

Higher values Higher values

δCarbon-13

Working at basin scale

Quality: isotopic profile of aquifers

CAP’s Geological framework supporting its WSP

• «Member States shall take all measures necessary to ensure that

regular monitoring of the quality of water intended for human consumption is carried out…

• In order to check that the water available to consumers meets the

requirements of DWD and in particular the parametric values set in accordance with Article 5

• Samples should be taken so that they are representative of the

quality of the water consumed throughout the year»

Monitoring – DWD point of view

CAP’s Geological framework supporting its WSP

• During

the phase

• f

implementation, it’s important to avoid complacency, encouraging a culture of vigilance and continuous improvement

• Challenge: find a method remaining objective and ultimately useful in

providing a point of reference from which to make further improvements This falls into two main areas:

• Output assessment. Analysing institutional, operational, financial and

policy outcomes

• Input assessment. Report on the completeness and adequacy of

actions required to implement a WSP IWA and WHO produced the WSP Quality Assurance Tool

Monitoring – WSP point of view

CAP’s Geological framework supporting its WSP

But, now we need to go farther

Lab analyses Early Warning on-line system Continuous Surveillance System

CAP’s Geological framework supporting its WSP

First CAP’s Early Warning Network (2016 - in progress)

Installing New Generation tools

CAP’s Geological framework supporting its WSP

Towards Decision Makers

From Multilayer Analysis to DSS

Working at basin scale

CAP’s Geological framework supporting its WSP

CAP’s WEBGIS Tool – Portale Geologia

CAP’s Geological framework supporting its WSP

Thanks for your kind attention