The Cecina Pilot River Basin Project

Survey of water related environmental issues: a
participated approach in the Cecina PRB
The Cecina Pilot River Basin
Project
Giorgio Pineschi - Sergio Sgroi
Ministero dell’Ambiente e della Tutela del Territorio
Brindisi, Italy, 22-24 September 2004
Ministero
Ministero dell
dell’’Ambiente
Ambiente ee della
della Tutela
Tutela del
del Territorio
Territorio
The Cecina River Basin
Surface Area: 900 km2
Length of River: 80 km
Flow regime (Q = 1030 : 0,01 mc/s)
Regional River Basin
4 Provinces (Livorno, Pisa, Siena,
Grosseto)
19 Municipalities
2 “ATO” (Territory with unified water
management)
CECINA PRB
Watershed Characteristics
19 MUNICIPALITIES
4 PROVINCES
LAND SURFACE :
2300 KM2
BASIN SURFACE
900 KM2
HABITANS
83609 - ISTAT 2001
ISOLATED HOUSEHOLDS
12329 - ISTAT 1991
POPULATION DENSITY
93 ab/km2
COMPOSITION OF CIVIL LOCALITIES
N. 131
n.2 municipalities > 10.000 hab.
n.9 municipalities < 2.000 hab.
Guidance documents to be tested
¾water bodies
¾pressure and impact
¾designation of heavily modified bodies of water
¾classification of inland surface water status and
identification of reference conditions
¾monitoring
¾best practices in river basin planning
¾tools on assessment and classification of groundwater
The FRAMEWORK PROGRAMME AGREEMENT
(APQ) for Cecina PRB
Signed in May 2003 by
•Ministry of the Env.
•Tuscany Region Authorities
•Provinces Authorities
•19 Municipalities
•Mountain Association
•River Basin Auth.
•National Env. Agency
•Regional Env. Agency
Contents of the APQ
The legal framework
Objectives
Actions
Tasks
Financial resources
The Actions
Protection of water quantity
pollution control from discharges
Diffuse pollution control
Improve and make operational water services
Remediation of contaminated soils and sediments
Carry out experimental activities
Set up a GIS
Organisational Structure
APQ signers
FORUM
Ministry of Env,Region, local authorities, River
Basin Authority, APAT, ARPAT, ATO, Mountain
Municipalities Association
(Stakeholder
NGO,
Citizens……)
Co-ordination Committee
Presidency: Water Director
Secretary: Mayor of Cecina
CIS Guidance Documents
Protection of
water quality
Remediation
Protection of
Water
quantity
GIS
experimental
activities
Water
Infrastructures
Authorities legally responsible for the implementation of the activities
The Cecina PRB project
•
•
•
•
1.
2.
3.
4.
Work Plan
Survey of water related environmental
issues– analysis of pressures and impacts
Identification of specific Objctives
Implementation of urgent actions
Selection of appropriate measures for:
water quality protection
water quantity protection
soil remediation
support the administrative rules
SURFACE WATER BODIES IDENTIFICATION
8
7
3
2
9
5
1
6
4
SURFACE WATER BODIES IDENTIFICATION
SUMMARY OF THE SURFACE WATER BODIES FIRST
IDENTIFICATION
9 Water Bodies (no lakes):
• 3 sections of the main channel of the Cecina river;
• 5 tributaries (Pavone, Possera, Botro S. Marta, Botro
Grande di Montecatini V. di C., Sterza);
• 1 coastal water body
Minimum Size
Length: 2,15 km (Botro S.Marta)
Catchment area: to be computed
Maximum Size
Length: 34,1 km (Cecina, headwater section);
Catchment area: 368,3 km2 (Cecina, mid section)
GROUNDWATER BODIES IDENTIFICATION
Significant groundwater, monitored by
ARPAT Livorno
32CT010 – Costal aquifere between
Cecina and S.Vincenzo
32CT030 – Costal aquifere between
Cecina river and Fine river
32CT050 – Aquifire of Cecina
Water related critical issues
• Water scarcity (negative water balance)
• Pressure on water quality
• insufficient sewer & WWTP network
• soil contamination
• Alteration of the morphological conditions
of rivers and of ecosystems
Water related issues
Water Quantity
Water deficit effects
•
•
•
Droughts during summertime
Reduction of available water supply
Deterioration of quality water resource
(concentration effect)
• Economic damages for industry and
agriculture
• Social Conflicts
Main Environmental Problems:
Point pollution from
urban and industrial
sources
and diffuse pollution
Water Quality
surface water:
• Boron, mercury (sediments), untreated
wastewater
• Arsenic, Solfate
groundwater:
• Nitrate, Cloride (coastal aquifer)
• Boron, organoclorurates compounds
Dati ARPAT
ƒ
SURFACE WATER CLASSIFICATION
Water Body
Sampling point
CHEMICAL
BIOLOGICAL
Cecina
Anqua
2
II
Cecina
II
Cecina
Monte confluenza 2
Possera
Ponteginori
2
Cecina
Ponte SS1
2
III
Botro grande di
Confluenza con il 2
montecatini
Cecina
Botro Santa Marta Saline
4
IV
Possera
II
Pavone
Confluenza con il 2
Cecina
S.Dalmazio
2
II
V
I
ECOLOGICAL
STATUS
2
GOOD
2
GOOD
2
GOOD
3
MODERATE
4
BAD
5
BAD
2
BAD
2
BAD
ARPAT
Year 2002 – Monitoring netRegional Plan - Dlgs 152/99
monitoring programs organized by ARPAT: May-November 2002
NITRATE
May - June 2002
NITRATE
October - November 2002
INDEX – Load of Nitrate in Groundwater [mg/l]
CHLORIDE
May - June 2002
INDEX – Load of Chloride in Groundwater [mg/l]
CLORIDE
October - November 2002
Chemical status of
Grounwater
Boron
Nitrate
Class 4 – Considerable
anthropic impact with low
quality of water
CECINA RIVER BASIN
Contamineted Sites
1. Dismissed mine “CANOVA”:
Discharge into the soil of exhausted “salamoie”
contaminated by mercury
2. Botro Santa Marta:
River sediment Pollution by Hg : discharge of
industry wastewater without appropriate
treatment
Driving force: ex industrial activity
Contaminated sites:
“Canova” & Botro Santa Marta
“Canova”polluted site Hg
“Canova” Dismissed Mine
• 10 ha
• n.50 (o 126) deep wells (150-200 m. dal p.c):
• Extractive wells
• Rejection wells of “salamoia”
• Extractive activity: 1969-1994
• Decommissioning mine permit 1997
Use of salgemma:
• Industry of Chloride-Sodium of “Saline di
Volterra”
• Send of “salamoia” to other industrial sites
(rilievi GETAS)
Canova site
contamination state
ƒ
ƒ
ƒ
ƒ
Mining site: high contamination of mining deep wells
monitoring date (1994-2000): 5400 – 21597 µg/l
Soils : diffuse contamination - max 333 mg/kgSS in
surface, 20 mg/kgSS max at 30 cm under the ground
level
water – lakes due to mining collapse and small stream
running the site: high concentration of cloruri at the
bottom, hg < 4 µg/l di hg
freatic groundwater: hg< 1 µg/l Cl = 68-380 mg/l,
Botro Santa Marta and Cecina
river site
• Mercury pollution of bed sediments:
discharge of industrial wastewater (ClNa process)
• Activity since1963
Hg water pollution
Botro Santa Marta
Cecina
Pavone
Possera
CECINA RIVER BASIN
INFRASTRUCTURE STATUS
• Lack of wastewater treatment facilities
• Obsolete water supply network
• Inadequate wastewater collection
system
Infrastructure Data
MONTESCUDAIO
699
Wastewater treatment
plant: inadequate
GUARDISTALLO
652
Wastewater treatment
plant: none
CASALE MARITTIMO
564
Wastewater treatment
plant: inadequate
MONTECATINI VAL DI
CECINA
568
Wastewater treatment
plant: none
POMARANCE
3916
Wastewater treatment
plant: none
CASTELNUOVO VAL DI
CECINA
1636
Wastewater treatment
plant: none
RADICONDOLI
532
Wastewater treatment
plant: none
CASOLE D’ELSA
2924
Wastewater treatment
plant: inadequate
MONTIERI
510
Wastewater treatment
plant: inadequate.
Actions
1. Extend the monitoring network
(water,sediment & biota)
2. Water abstraction measurements
3. Survey of Wastewater discharges
(database)
4. Sensible areas and nitrates
vulnerable zone identification
5. Water balance computation, MDV
hydrological mass balance and
minimun and vital regime
•
hydrological mass balance: P=D+E+X ,
X= groundwater looses towards other bacins and water abstraction
without giving back
Yearly flow (D) =
130 million (average 1970-2002)
Hydrological Deficit (X) = 20 million
•
Minimum and vital hydrological regime:
MDV is the minimum flowrate supporting:
water ecosystems and water life
groundwater recharge
MD (Q7,10)= 7.8 l/s – summery dry period
MD without abstractions = 93.5 l/s
Studio prof.Pranzini
Protected Areas
Protected Areas
CECINA PILOT RIVER BASIN
Sensible area
Delibera Regionale
n.170
8 ottobre 2003
Cartina dell’area sensibile
Protected Areas
CECINA PILOT RIVER BASIN
Nitrates vulnerable
zone
Delibera Regionale
n.170
8 ottobre 2003
Cartina della zona vulnerabile
actions for water quality
Protection
• water network interconnection
• water losses reduction (drinking
water)
• wastewater reuse for industrial
purpose: ARETUSA project
• Protecting measures
SLIDE FONTE ASA
ARETUSA Project
IMPIANTO DI POSTTRATTAMENTO
IMPIANTI SOLVAY ROSIGNANO -
DEPURATORE DI
ROSIGNANO SOLVAY
(280 mc/h)
2.453.000 mc/anno
CONDOTTA DI
COLLEGAMENTO
DEPURATORE DI CECINA
(275 mc/h)
2.400.000 mc/anno
FIUME
FIUME CECINA
CECINA
Solvay NON emungerà dai propri pozzi un quantitativo pari all’acqua ottenuta dai
depuratori: da un minimo di 3,8 ad un massimo di 4,16 milioni di mc/anno e
destinerà all’uso potabile un minimo di 2 milioni mc/anno
Improvement of wastewater
treatment systems
• N.10 Intervention for sewers
• N.26 Interventions for urban WWTPs
Removing dangerous substances
from industrial discharges
1. SOLVAY. Cloro-Soda plant using Hg cells
2. ALTAIR. Cloro-Potassa Plant using Hg cells
Substitution of elettrolitic cells Hg with membrane
cells – implementation before 2008
PUBLIC PARTECIPATION IN THE CECINA PRB
INFORMATION
CONSULTATION
DIRECT
INVOLVEMENT
Stakeholder analysis
& information from the
beginning
Door to door survey
APQ disseminated
BEFORE the sign
The CECINA
PRB FORUM
The Cecina PRB FORUM
Forum Meetings
1st Meeting: The Institutions show the project and the Forum
President is appointed(Head of the local WWF). Participants
show their main concern (SOLVAY is close to benefit of new
authorisations for water abstraction)
2nd meeting: The Forum write a letter to the President of the
Region asking to block the Environmental Assessment
Procedure VIA Eti/Solvay.
3rd Meeting: The forum decide for a strong opposition to the
SOLVAY procedure and show the concern for the PRB
incapability to stop the increase of water consumption
What the Institutions think
about the FORUM
What the Forum Participants
think of the Institutions
1st meeting: you cant
always talk about Solvay
We clearly showed the real
problem from the beginning
2nd meeting: your are too
much aggressive and you
don’t give enough time to us
to prepare the meeting
It is not useful the Government
involvement
3rd: your interventions are
political speeches!!
Once again, nobody want to
fight the real problem
The just want us to listen their
speeches
Maybe it is better to ask to the
Commission to force Italy to
spend better public financial
resources
Who is wright ?