Online Pre-Conference
WATER, MEGACITIES AND GLOBAL CHANGE
7 – 11 December 2020
Strengthening of Sustainable Solidarity8 December 2020
Eau de Paris: Integrated water management to tackleenvironmental challengesAntoine Szadeczki
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
Summary
Introduction: Eau de Paris1. Paris drinking water supply: context2. Quality monitoring and emergence of challenges 3. Early integration of resource protection4. Technical tools to protect water with farmers5. Territorial development and innovation6. Towards new paths of action to face increasing challengesConclusion: integrated water management for a sustainablewater supply
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
1. Eau de Paris
France’s biggest public water utility, Eau de Paris is the municipal agency in charge of catchment,treatment and distribution of drinking water to Paris
3 million consumers500 000 m³ drinking water and 200 000m³ non-drinking water every day
470 km of aqueducts 6 water treatment plants
900 employees
5 main drinking water tanks
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
2. Paris drinking water supply
50 % groundwater
50 % surface water (rivers)
102 groundwater abstra-ction points
240 000 ha (2 400 sq. km)of groundwater catchmentbasins
Water quality is impactedby agriculture (nitrates,pesticides)
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
3. Water monitoring and emergence of challenges
Late 20th century and present: impact of non-point agricultural pollutionPost-war farming revolution: mechanization anduse of chemicals Rise of nitrates and pesticides in water(above legal quality standards)
0
10
20
30
40
50
60
19
25
19
30
19
35
19
40
19
45
19
50
19
55
19
60
19
65
19
70
19
75
19
80
19
85
19
90
19
95
20
00
20
05
nitra
tes (
mg/l)
LONG-TERM MONITORING REVEALS NEW POLLUTION TRENDS AND LEADS TO RESOURCE PROTECTION ACTIONS
19th century and early 20th century- Main concern = infectious diseases- Excellent hydrological knowledgeHydrological solutions to protect springs
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
4. Early integration of resource protection
1990’s: first actions with farmers to complement treatment operationsOptimization of fertilizationPesticides substitutesBuffer strips along streams
2000’s 2010’s: developing new solutions at farm scaleConsider the farm as a wholeBalance input reduction (pesticides + nitrates), water
protection and economic sustainabilityResearch (agronomy, hydrology) and experts Financial aid (CAP’s agri-environmental measures)
COMPLEMENT TREATMENT WITH RESOURCE PROTECTION TO SUPPORT LONG-TERM USE OFRESOURCES
FIRST RESULTS OBSERVED ON WATER QUALITY (reduction in nitrate rates and pesticides peaks)
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
6. Technical tools to protect water with farmers
GIVE FARMERS THE KEYS TO MAKE THECHANGE THEY WISH AND TO WATER PROTECTION
Financial aidscheme
Group thinking and counselling
Technicalcounselling
Upstreamand
downstreamcircuits
Local exchange network
Land planning
17 000+ HA OF LOW-INPUT FARMING SYSTEM (9 600 HA ORGANIC FARMING) WITH EAU DE PARIS
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
5. Territorial development and innovation
• Experiment and evaluate (new techniques, new crops)• Constantly seek new solutions• Support bottom-up initatives, build capacity• Set long-term development dynamics
INTENSIFY RESOURCE PROTECTION BY MAKING IT A TOOL FOR TERRITORIAL DEVELOPMENT
150 FARMERS ENGAGED IN A CHANGE OF FARMING SYSTEM WITH EAU DE PARIS
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
7. Towards new paths of action to face increasing challenges
1. NEW EXTRA-CAP FINANCIAL AID SCHEME – PAYMENTS FOR ECOSYSTEM SERVICESFirst French public water agency to notify agri-environmental state aid scheme to the European Commission
3. OTHER LEADS• Buffer wetlands• Hedgerows and trees in farming models
Adapted to local contexts and farms• Cereals / field crops farms• Crop-livestock mixed farms• Organic farms
Long contracts (6-7 years) to ensure long-term transformation
of farms
Efficiency on water quality measures comprise strictenvironmental targets on every aspect ofthe farming system to produce an impact
2. A NETWORK OF « FARMERS WHO PROTECT WATER »
+ Reinforce monitoring of impact on water quality !
PRE-CONFERENCE “WATER, MEGACITIES AND GLOBAL CHANGE”
Conclusions
INTEGRATED WATER
MANAGEMENT
Resource protection as a
part of the production
process
Change in farmingsystems to protectwater and support
rural territories
Solidarity - Face environmental
challenges collectively
Online Pre-Conference
WATER, MEGACITIES AND GLOBAL CHANGE
7 – 11 December 2020
Thank you for your attention !
Antoine [email protected]
