CLABSA
Clavegueram de 
Barcelona
Annual report 
on activities
2010 
2 Report on activities
2010
Index
CLABSA 3
1. Annual 2. Other 3. Economic 
report on aspects of data
activities management
1.1 www.clabsa.es 2.1 Innovation 3.1 Management report 
1.2 Development of 2.2 Human resources 3.2 Financial statements
 the Barcelona sewer system
2.3 Commitments 3.3 Auditor’s report
1.3 Management of  to the community
 the Barcelona sewer system 3.4 Board of directors’ statements
2.4 Environmental action
1.4 CLABSA activities in the 
 Barcelona metropolitan area Environmental Impact 
of Work Sites in the city
1.5 Groundwater management Water Quality 
 in the city of Barcelona Responsible Consumption
1.6 Other activities of note
Control of Waste Discharge 
to the Barcelona Sewer System
Development of 
Fibre-Optics Ducts in the 
Barcelona Sewer System
Management of the River Besòs 
Waterway Park Warning System 
Assistance with Urban Cleaning
Other Sewer System Work 
4 Report on activities
2010
Presentation 
Imma Mayol Beltran In 2010 we assisted with the 
commissioning of a new rainwater 
Chair of the Board of Directors retention tank. Following 22 months 
of particularly complex work on the 
central part of Carrer Comte d’Urgell, 
the retention capacity of the city’s 
rainwater collection tanks has been 
increased by 15,000 m3. This new 
facility, which CLABSA, which has 
already been brought on line, will 
improve drainage on the left-hand 
side of the city’s Eixample district 
and will significantly reduce the risk 
of flooding in the neighbourhoods of 
Sant Antoni and El Raval.
CLABSA 5
The new Carrer Comte d’Urgell CLABSA continues to work with In financial terms, 2010 closed with 
rainwater tank is the most visible the Metropolitan Environmental income of 10.3 million Euros and a net 
result of the ambitious investment Agency in the provision of services profit of 0.5 million Euros. While this 
plan undertaken by the City Council, to a number of town councils in the represents a 13% reduction in income, 
with regard to the sewer system over metropolitan area of Barcelona. The in comparison with the previous year, 
the last three years, and which has planning of the Barberà del Vallès this decrease, which is expected to 
represented an investment of 117 sewer system, the design of the La be accentuated in the coming year, 
million Euros. This plan has brought Riera de la Salut Detention Basin, basically represents a response to 
about actions such as the bringing in Sant Feliu de Llobregat, or the the decrease in activities arising 
on line of the Urgell Tank, the civil Estrella Reservoir, in Badalona, are from the finalisation of the work of 
engineering work on the Carmel-Clot clear examples of the contribution the Barcelona Municipal Investment 
Tank, the improvement of 4.2 km that CLABSA can also make to the Plan and the decrease in the work 
of local networks in 10 of the city’s development of an improved service contracted by other metropolitan 
districts and the arrival of a new for neighbouring municipalities. municipalities and third parties, 
treated water pipeline, bringing water 
for irrigation purposes to the Montjuïc In 2010 the work done by basically due to the stage in the 
municipal legislative cycle.
hills. Collaboration on the part of CLABSA received an important 
CLABSA has been a key factor in the acknowledgement by the International In view of the currently unfavourable 
design and subsequent monitoring of Water Association (IWA) at their World economic climate, special value 
the above work sites, and one of their Congress, held in Montreal. must be placed on the efforts 
priorities has been to reduce their The Association awarded their and commitment of all company 
impact on the life of citizens. Innovation Prize to our Company personnel, along with our 
The new provision of treated water for the COWAMA (Coastal Water congratulations for all that they have 
Management) Project, which we achieved. I would particularly like to 
to the Montjuïc hills is one of the extend those congratulations to all of 
keystone projects for the harvesting of developed to provide technological the company’s collaborators and to 
alternative water sources in Barcelona support in the management of 
the quality of the city’s beaches, in the Board for their special dedication, 
and bringing it on line will significantly 
reduce the consumption of potable response to the requirements of the and encourage them to continue with 
European Directive. their work of improving the services 
water for municipal uses, making it that we provide to the citizens.
possible in the near future for this water 
also to be used for industrial purposes 
in the Zona Franca area. It is a case of 
a commitment with a metropolitan 
vocation, which has been carried 
out jointly with the Metropolitan 
Environmental Agency, with technical 
support provided by CLABSA.
 
Imma Mayol Beltran 
Chair of the Board of Directors
6 Report on activities
2010
Shareholders and 
Board of Directors 
Shareholders Share capital: 3.606.072€ in 600 
shares with a nominal value of 
6.012,12€ each, fully subscribed and 
paid up by:
  Barcelona de Serveis Municipals, S.A. 
  (class A) 105 shares
  Entitat Metropolitana del Medi Ambient 
  (class A) 49 shares
  Societat General d’Aigües 
  de Barcelona, S.A. 
  (class B) 324 shares
  Fomento de Construcciones 
  y Contratas, S.A. 
  (class B) 122 shares
Date of incorporation: 
11 May 1992
Fiscal Identification: 
A-60086451
Registered Address: 
Rue de l’Acer 16, 08038 – Barcelona
Phone: 
932 896 800
Email: 
info@clabsa.es
Fax: 
932 230 233
Web: 
www.clabsa.es
CLABSA 7
Board of Directors Position Representative Time
Chair Il•lma. Sra. Imma Mayol Beltran
Vice Chair Sr. Ignacio Escudero García after 24/03/2011
Sr. Leonard Carcolé i Galea until 28/01/2011
Members Il•lm. Sr. Francesc Narváez i Pazos
Il•lm. Sr. Joan Puigdollers i Fargas
Sr. Francesc Xavier Amorós i Corbella until 24/03/2011
Sr. Jordi Campillo i Gámez
Sr. Carlos Campos Callao after 24/03/2011
Sr. Joan Cristià Roca after 24/03/2011
Sr. Alejandro Jiménez Marconi after 24/03/2011
Sr. Joaquim Oliveras Riera until 24/03/2011
Sr. Fernando Rayón i Martín
Sr. Ciril Rozman Jurado
Societat General d’Aigües de Barcelona, S.A. 
Representant Sr. Francesc Xavier Garcés Daniel
Companyia Catalana de Serveis, S.A. 
Representant Sr. Agustín Garcia Gila
Serveis d’Escombraries i Neteja, S.A. 
Representant Sr. Jordi Payet i Pérez
Serveis Especials de Neteja, S.A. 
Representant Sr. Pau Martín i Zamora
Vice-Secretary FCC Versia, S.A. 
Representant Sr. Esteve Correa i Artés
Managing Director Sr. Josep Carbonell Talavera
8 Report on activities
2010
Annual report 
on activities
1.1 www.clabsa.es
1.2 Development of 
 the Barcelona sewer system
1.3 Management of 
 the Barcelona sewer system
1.4 CLABSA activities in the 
 Barcelona metropolitan area
1.5 Groundwater management 
 in the city of Barcelona
1.6 Other activities of note
CLABSA 9
10 Report on activities
2010
1.1 
www.clabsa.es
Clavegueram de Through the creation of CLABSA, 
Barcelona, S.A. Barcelona City Council broke away 
from the classical concept of passive 
(CLABSA) is a mixed- management of the city’s sewer 
economy company system. This resulted in a rapid, yet 
far reaching, transformation of the 
that was incorporated infrastructure based on accurate 
in 1992, on the basis of planning and efficient real-time 
management of the elements 
an initiative launched that make it up. What CLABSA has 
by Barcelona termed “Advanced Urban Drainage 
Management” (GADU) became a 
City Council. The benchmark that is today recognised as 
Company’s main a model to be imitated, and continues 
to evolve towards a more generalised 
business activity takes vision of sustainability.
place within the city The challenge of sustainable 
and the metropolitan management requires a holistic 
approach, with a balanced blend of 
area of Barcelona infrastructure and management, 
and is focused on the supported by the best available 
technology in order to deal with the 
management, design environmental role of urban drainage, 
and control of urban which has now become a fully 
recognized reality. 
drainage systems.  
Holistic 
Approach
The city’s drainage network must 
never be considered as an isolated 
system, insofar as its design and 
subsequent performance are 
conditioned by both the physical 
environment that it has to protect and 
by the constantly varying patterns of 
precipitation, with special emphasis 
on those that are due to climate 
change. The impact on both the city 
and the receiving environment, along 
with its ecosystems, is direct and 
measurable. Furthermore, sanitary 
CLABSA 11
management has started to play an Environmental Furthermore, at the request of 
increasingly important role in the Purpose Barcelona City Council, CLABSA 
urban water cycle, which is why an 
allowance must now be made for the Rainfall not only inconveniences also designs, installs and maintains 
a network of ducts through which 
possibility of recycling drainage water. citizens it also causes, to a greater 
As important as the repercussions of or lesser extent, damages as a result fibre-optics cables are run, taking 
of flooding. However, this is merely full advantage of the existing 
this problem are the perspectives from 
which it must be analysed: from that the most widely known and easily sewer infrastructure.
of the citizens, the public authorities measured aspect of the question. Activities associated with urban-
and also by that of the different social Rainfall is also responsible for 50% of drainage management and sewer 
and economic agents. the pollution discharged into rivers network discharge controls are also 
 and onto beaches in urban areas, carried out for all of the municipalities 
Management and this is a factor that we cannot in the Barcelona metropolitan 
and Infrastructure afford to ignore. area, within the framework of the 
The conception of how urban Contract-Program drawn up with the 
The efficient use of resources and drainage ought to be managed, as Metropolitan Environmental Agency.
urban space requires rigorous 
management that will allow a basic municipal service, has also Outside the Barcelona metropolitan 
for a minimisation in the use of been shown to be applicable to other area, CLABSA also provides advisory 
infrastructures that are habitually activities that are now delegated by and technical-assistance services 
rigid and costly. “Advanced Urban Barcelona City Council. As a result, the with a high level of specialisation. 
Drainage Management” hinges on current Contract-program includes This has been acknowledged at an 
careful planning, the integration of back up services related to: international level, by companies 
the life cycles of installations and their •  The planning and development of in the sector and by town and city 
subsequent rehabilitation.  urban-drainage systems. councils, as well as other public bodies.
 •  The implementation, operation and Clavegueram de Barcelona, 
Technology maintenance of technological systems S.A. (CLABSA) undertake their 
In-depth knowledge of the and elements to regulate the city’s management activities in accordance 
environment, overall planning drainage systems. with the strictest quality standards 
and real-time information are the and have been awarded Quality (ISO 
factors that make it possible for •  The operation and maintenance of 9001:2008), Environmental Care 
urban-drainage systems to be more the River Besòs flood warning system. (ISO 14001:2004) and Occupational 
efficiently managed. These are •  The management of the system Health and Safety (OSHAS 18001:2007) 
the bases on which to ensure that employed to harvest groundwater certificates, vouching for their 
optimum advantage can be taken of in Barcelona. integrated management system and 
smaller, more flexible infrastructure. covering all of the company’s activities. 
CLABSA is confident that the intensive •  Technical back up for the control of 
use of ICT systems, backed up by sewer cleaning and rehabilitation.
the most advanced forecasting and •  Technical back up for the development 
simulation models, will be the best of the network for the Pneumatic 
possible basis for decision-making. Collection of Solid Urban Waste (RPRSU).
 
12 Report on activities
2010
1.2 
Development of the 
Barcelona sewer 
system 
Barcelona disposes of Barcelona City Council obtained 
detailed planning of important resources for the financing 
of a number of priority actions 
its sewer system, forms included in this Plan from the ERDF 
part of the Overall Sewer (European Regional Development 
Fund) 2007-2013 Cohesion Funds, as 
System Rehabilitation well as from the Spanish State’s 2009 
Plan, which was drawn and 2010 Local Investment Funds.
up by CLABSA in 2006. In particular, the total for the site work 
projects drawn up in 2010 amounted 
This Plan, which became to 18.7 million Euros, among which 
known as PICBA’06, is special mention must be made of the 
Carmel-Clot Tank and the Cleaning 
in a permanent process Yard that is located above the tank 
of updating, in order to itself. Apart from this, for reasons of 
budgetary availability, the Rambla del 
adapt it to the changing Carmel Drain Project was broken down 
dynamic of the city. into two sections: Phase A (Avinguda 
de l’Estatut), which has already been 
laid, and Phase B (the tunnel passing 
beneath Rambla del Carmel) work on 
which will take place at a later date.
This year, with co-financing provided 
by the Cohesion Funds, CLABSA 
supervised 30 different work sites at a 
cost of 37.1 million Euros. From among 
these, special mention must be made 
of the Urgell Tank, with a retention 
capacity of 15,000 m3, and the 
continuation of the civil engineering 
work on the Carmel-Clot Flood-
Protection Tank, as well as the start 
of work on the Avinguda de l’Estatut 
drains, which will provide these tanks 
with input and outlet pipes
With regard to more local, or 
secondary, drainage networks, in 2010 
a number of studies were carried 
out of the Ciutat Meridiana area, 
complemented by the project for 
CLABSA 13
Summary of the work done on sewers projected and managed by 
CLABSA, in the Environmental Sphere – Year 2010
Actions Amount (€) Status on 31/12/2010
Holding tanks   
   
Urgell–Mallorca Tank 6.383.253 Finalised
Site modification, Carmel-Clot Drain and 21.978.542 In progress 
other associated drains
Installations and remote control of the 6.999.576 Projected 
Carmel-Clot Tank  
 
 
Local networks   
  
XL1: Ciutat Vella, Eixample 2.511.062 Finalised 
and Sants-Montjuïc
XL2: Les Corts and Sarrià-Sant Gervasi 2.697.230 Finalised
XL3: Gràcia and Horta-Guinardó 2.679.086 Finalised
XL4: Nou Barris, Sant Andreu 2.597.959 Finalised 
and Sant Martí
Renovation of the Roquetes 2 networks 766.589 In progress 
(islands A, C, D)
Renovation of the Roquetes 3 networks 666.988 Projected 
(islands E, F, G)
Carrer Agudes Drain (Ciutat Meridiana) 1.485.440 Projected
 
Mains drains  
  
Rehabilitation of the following drains: 3.150.000 Finalised 
Bac de Roda, Selva de Mar, Bogatell,   
plus surrounding areas
Rambla del Carmel, Phase A, Drain 2.886.329 In progress
15,6 km 4,2 km
of new sewers upgraded local network
14 Report on activities
2010
In the chapter on the monitoring of 
the actions taken by the ADIF special 
mention must be made of the work 
of doubling the Riera Blanca Phase 2 
Drain, the Riera de Tena Underpass 
and the Antoni Capmany Deviation. 
Likewise the monitoring of the work 
required to prepare the ground for 
the Sagrera to Sants (Mallorca/Clot, 
Mallorca/Trinxant, Mallorca/Padilla 
and Provença/Entença) Tunneller was 
carried out, along with the deviation of 
the Olesa-Garcilaso Drain, rerouted for 
the construction of the new Meridiana 
Commuter Train Station. Assistance 
was also provided for the reroutimg of 
the sewer system, required as a result 
CLABSA reinforced Carrer Agudes, on the border of the of the construction of the new Metro 
their search for better municipality of Montcada i Reixac, Line 9 Stations (Guinardó, Putxet, 
while projects were also drawn up for Mandri, Sarrià), plus the work required 
technical solutions, the “Roquetes 2” and “Roquetes 3” on the Zona Franca Drain to prepare the 
along with the networks, running between the streets ground for the tunneller. All of these 
Carrer Artesania, Carrer Almansa, Via actions had a significant impact on the 
promoters of these Favència and Carrer Alonso Cano. sewers network and required Barcelona 
investments, and CLABSA also supervised work on 4.2 City Council to ensure, via CLABSA, a 
having resolved the kilometres of secondary network drains, rigorous monitoring and control of this 
laid in different districts of the city. work. In this context, CLABSA reinforced 
affects  that this work their search for better technical 
At the same time, this year CLABSA solutions, along with the promoters of 
has had on the sewers also concluded supervision work on the these investments, and having resolved 
network, they also rehabilitation of the Bac de Roda Drain, the affects (both temporary and 
along with others associated drains. definitive) that this work has had on 
ensured their correct It is also necessary to mention a the sewers network, they also ensured 
integration, along number of other relevant works their correct integration, along with 
with the application of for Barcelona City Council, such as the application of uniform quality 
the study of an alternative to the criteria throughout the city.
uniform quality criteria construction of the doubling of the The monitoring of the urban 
throughout the city. Diagonal Drain, running between development sites, within the City, 
Francesc Macià and Passeig de Sant which have affected the sewer system, 
Joan, or the study of an alternative to resulted in an average of 126 actions 
the Trafalgar-Rec Drain, and also the having to be taken every month on the 
start of planning work on the Torrent de public thoroughfare. This important 
l’Espinagosa Tank, the purpose of which activity resulted in the construction 
will be the reduction of discharges into of 15.6 km of new sewers, of which 
the unitary network at the bottom end 2.6 km correspond to accessible 
of the Vallvidrera Reservoir. drains and major primary hubs. All 
As has now become the norm, of this work is subject to permanent 
CLABSA continued to collaborate monitoring, in order to optimise 
with the districts and other municipal municipal actions and minimise 
bodies on the development of local the impact on citizens. This overall 
sewer systems, providing technical monitoring resulted in the drafting 
assistance for the monitoring of the of 859 network reports, along with 
ADIF (Spanish Railway Infrastructures) another 179 reports drawn up and 64 
work on the tunnels for the high speed consultancies carried out with regard 
train link across the city. to external projects.
CLABSA 15
1.3 
Management of 
the Barcelona 
sewer system 
Careful planning and The final result, as perceived by Annual rainfall was 630 l/m2, 
design of drainage citizens, will depend to a large distributed over 73 days of significant 
extent on the effectiveness of this precipitation. On 2 occasions the 
systems can lead to management, suitable maintenance, intensity of the rainfall reached 
substantial savings, a good regulation strategy, real- levels that could be defined as 
time control of the system, etc. In “alert” and on 2 occasions it reached 
particularly when essence, experience, organization “emergency” level, these occasions 
2
greater emphasis and technology are all essential to being 17th September, when 49 l/m  
ensure that the service works properly. was recorded, and 20th September, 
is placed on CLABSA has installed an extensive when values of 30 l/m2 were 
management, rather network of sensors and hydraulic- recorded in some areas of the city.
control elements throughout 
than taking on large- Barcelona and this is the most solid On each of the above occasions 
scale infrastructure, technological base on which to build the rainwater retention tanks fully 
efficient management. complied with the task for which 
as is the case with they have been designed and built, 
The Barcelona sewer system is now accumulating vast quantities of 
Barcelona City Council. permanently monitored by a total of water and avoiding its circulation 
2,025 remotely-supervised electronic through the drainage network at 
sensors, and 397 elements that can be the most critical moments of the 
remotely controlled from the CLABSA flooding. They also allowed for a 
Control Centre to guarantee efficient reduction of the outflow into the 
operation of the system. sea of 1,121 tonnes of solid material 
This group of control installations suspended in the water by means of 
allows for the management of heavy the regulation of over 4.39 million 
rainfall episodes, which in 2010 were cubic metres of water.
similar to those of the previous year, The results obtained would not 
although total annual precipitation have been possible without the 
was higher. correct maintenance of all of the 
installations. The 15,465 equipment 
maintenance interventions, 92% of 
which were preventive in nature, 
guaranteed that all of the most 
important elements remained 
fully operative for 98% of the time. 
This ensured that it was possible 
to successfully deal with all of the 
rainfall episodes due to the fully 
operational status, of all of the 
systems, with optimum guarantees 
of efficiency.
16 Report on activities
2010
Rainfall Data
Kind 2007 2008 2009 2010
Total precipitation (l/m2)* 399 564 473 630
Total days of rainfall 97 129 111 140
Days of significant rainfall (> 1 l/m2) 43 70 53 73
Days of heavy rainfall (> 10 l/m2) 12 19 15 19
Nominal volume of 473 473 473 491 
the regulating tanks (thousand m3)
   
Volume of retained rainfall (thousands m3) 3.628 4.478 3.683 4.390
*Historic average: 600 l/m2 (1914 – 2010)
Retention and Control Network
Kind 2007 2008 2009 2010
Remote-control stations 115 141 150 157
Remote-control stations 303 343 372 397
Tanks 8 8 8 10
Pumps 190 208 232 249
Sluice gates and valves 82 101 105 110
River Besòs reservoirs 11 11 11 11
Groundwater hydrants 12 15 16 17
Remote-controlled sensors 1.743 1.820 1.874 2.025
Rain gauges, tide gauges and piezometers 210 213 224 244
Other sensors 1.543 1.607 1.650 1.784
15.565 92 %
maintenance interventions of a preventive nature
on the equipment
CLABSA 17
1.4 
CLABSA 
activity in 
the Barcelona 
metropolitan 
area 
These Master Plans Collaboration with the Metropolitan Planning
provided the people Environmental Agency on the 
management of the sewer system The town councils of Santa Coloma 
in charge of making began in 2006, when the Contract- de Gramenet, Barberà del Vallès and 
the decisions at the Program was first signed between Badalona all committed themselves 
CLABSA and the Environmental to this approach and entrusted the 
town councils with Agency. This was then consolidated preparation of their Sewer Master 
Plans to CLABSA through the 
a clear vision of the by a number of projects that were 
carried out over the following agreement with the Environmental 
existing weaknesses years. The principles developed Agency. These Master Plans provided 
of the networks in for managing urban drainage in the people in charge of making the 
Barcelona were taken as the basis decisions at the town councils with a 
their towns, along for the implementation of an clear vision of the existing weaknesses 
of the networks in their towns, along 
with the actions that effective planning and management 
methodology for sewer systems, which with the actions that needed to be 
needed to be taken, has since been adapted to the widely taken, their cost, and the priorities 
varying situations in the different to be applied from the perspective 
their cost, and the municipalities that form a part of the of comprehensive infrastructure 
priorities to be applied Barcelona metropolitan area. planning. In 2010 work on the Barberà 
del Vallès Master Plan came to an end 
from the perspective Unlike the city of Barcelona itself, in and considerable progress was made 
of comprehensive these urban centres the layouts are on the Badalona Master Plan.
generally speaking more disperse, the 
infrastructure diameters of the networks is more This year also saw the drafting of the 
reduced, drainage catchment areas Master Plan for the Malgrat sewer 
planning. may be affected by major water courses system, on the basis of a contract 
and knowledge of infrastructures is drawn up with the Deputation of 
less precise. Despite these differences, Barcelona for the specific provision of 
the CLABSA working model has shown this service within the lines established 
itself to be equally effective. for the drafting of Master Plans for 
 sewer systems in small municipalities 
in the Province of Barcelona.  
 
18 Report on activities
2010
Projects Projects and site supervision work carried in 
and Sites the Barcelona Metropolitan Area - Year 2010
In terms of projects, in 2010 work Actions Award Status on 31/12/2010
was completed on the Estrella 
Sewer System Retention Tank in the 
Badalona sector, with a capacity of Supervision of the Anti-DSU (Unitary Discharge 5.940.367 In progress 
21,000 m3, costing 8,5 million €, which System) Tank in the La Bunyola and L’Aviació   
included the archaeology of this catchment area, in the municipality of   
important project. In fact, this was El Prat de Llobregat
the first tank to be built in Badalona, 
its purpose being to avoid flooding Supervision of the supply of treated water from 580.237 Finalised 
along the Torrent de San Ignacio the El Prat EDAR (Wastewater Treatment Plant) to   
water course, while at the same time Zona Franca. Section 4
reducing discharges onto the town’s Supervision of the supply of treated water 922.834 Finalised 
beaches during heavy rainfall episodes. from the El Prat EDAR to the Zona Franca area.  
Also in 2010 the project for the Sant Pumping Station
 
Feliu de Llobregat open-air Basin was Project for the Riera de la Salut Detention 8.413.866 Projected 
handed over to the Administration, with Basin in Sant Feliu de Llobregat
a volume of 71,000 m3 and budgeted at 
8,4 million €, for the purpose of limiting Project for the Estrella Sewer System Retention 515.871 Projected 
the affect of floodwaters coursing down Tank, in Badalona. Pre-excavation and archaeology
 
the Riera de la Salut dry water course Project for the Estrella Sewer System Retention 7.975.107 Projected
in the urban centre. Tank, plus the technical premises
With regard to the supervision of sewer 
system work sites, in 2010 supervision 
continued of the work on the La 
Bunyola anti-DSU (Unitary Discharge 
System), with a capacity of some 15,000 
m3, located in El Prat de Llobregat.
Apart from the sphere of urban 
drainage, which gave rise to the 
original metropolitan Contract- Infrastructure The Metropolitan 
Program, in 2008 the Metropolitan Operations 
Authority also requested CLABSA’s Authority also 
collaboration in the area of alternative The Gran Via de l’Hospitalet Tank requested CLABSA’s 
water resources, and in particular with continues to be managed by CLABSA. 
regard to the project for transferring This tank, which is the property of the collaboration in the 
recycled water from the El Prat EDAR General Roadways Directorate of the area of alternative 
(Wastewater Treatment Plant) to Generalitat of Catalonia, serves to 
the Zona Franca/Montjuïc area protect the Gran Via tunnel against water resources, and 
in Barcelona, as well as up to the flooding, following intense rainfall in particular with 
Montjuïc hills overlooking the City. This episodes, as it passes through the 
project has been developed in phases: municipality of Hospitalet de Llobregat. regard to the project for 
the initial pipeline sections were In 2010 the harvesting and transferring recycled 
laid on the Pratenc industrial estate maintenance of the Sant Llorenç Basin 
in 2009, and in 2010 the Section 4 was consolidated, the work having water from the El Prat 
works on the pipeline were completed started in the last quarter of 2008. EDAR (Wastewater 
(between pg. de la Zona Franca and A total of 677 l/m2 of rain was dealt 
Carrer A), the Pumping Station at the with in 109 days, in 19 of which rainfall Treatment Plant) to the 
Water Treatment Station (ERA) at levels were in excess of 10 l/m2. Zona Franca/Montjuïc 
the Llobregat Wastewater Treatment According to the warning protocols 
Plant (EDAR) that complete this established a total of 12 warnings, area in Barcelona. 
infrastructure, which is over 9 km in which were coordinated with Civil 
length, runs from the EDAR to the Tres Defence and the local police forces of 
Pins Nurseries in Montjuïc. Gavà and Viladecans. 
CLABSA 19
1.5 
Groundwater 
management 
in the city of 
Barcelona 
Since 2006 the The City Council is fully aware of 
Barcelona City Council the growing need to reduce the 
consumption of potable water and 
has entrusted CLABSA is firmly committed to reliance on 67 km
with the maintenance alternative water sources for uses of distribution pipelines
other than human consumption.
and operation of the In recent years, a number of systems 
city’s groundwater have been created to take advantage 
distribution network. of groundwater for use in the city’s 
parks and gardens, for ornamental 
fountains and lakes, and also to 
supply the hydrants for hosing down 
the streets. Now that the existing 22 storage tanks
systems have been extended and 
interconnected and new ones opened with a total capacity 
up, Barcelona can claim to have of 9.630 m3
access to an expanding groundwater 
distribution network that can be 
harvested for a variety of uses that 
are not dependent on the high quality 
standards required for potable water. 
This source currently supplies 16.6% 
of the total water used by the 
Barcelona City Council. 24 springs
This groundwater network currently with flow rates of 2 to 20 l/s
consists of 67 kilometres of 
distribution pipelines and 22 storage 
tanks, with a total capacity of 9,630 
m3. The water is supplied by 24 springs 
with flow rates of 2 to 10 litres per 
second, and in some cases is also 
collected from water wells, roof run-off 
and tunnel drainage. All such facilities 
are managed by CLABSA and operated 
via the CLABSA Control Centre. 
20 Report on activities
2010
Projects and supervision of groundwater sites carried out by CLABSA 
- Year 2010
Actions Amount (€) Status on 31/12/2010
Supervision of the site for supplying the 1.146.936 Finalised 
Montjuïc hills with treated water from 
the El Prat Wastewater Treatment Plant.
  
Supervision of the site for closing 32.000 Finalised 
the groundwater supply ring on   
the Mataró road.
Supervision of the site for connecting 38.617 Finalised 
up the groundwater network in   
the Sant Martí District (5 islands)
Supervision of the site for connecting 136.449 Finalised 
up the groundwater network: Alfons   
el Magnànim–Gran Via–Bac de Roda
Project no. 9, groundwater remnants: 45.801 In progress 
Segregation of water consumption in   
the Estació del Norte Park.
Project no. 10, groundwater remnants: 235.537 Projected 
Gran Via, Diagonal Mar, Bori i Fontestà
Project no. 11, groundwater remnants: 235.751 Projected
Urgell-Mallorca hydrant, Clot Park, 
control of the Wellington-Llull system 
(Waters Building) to Ciutadella
CLABSA 21
Consumption of groundwater in m3
794.000 m3
consumed in groundwater
in 2010
2007 2008 2009 2010
In 2010, within the sphere managed the following: irrigation in the Estació Likewise, in 2010 CLABSA also 
by CLABSA, 794,000 m3 of groundwater del Nord Park, complementary work inspected 19 groundwater sites, 
was distributed by the this network on Gran Vía, supplying the Diagonal the most important of which was 
as a whole, to which we must also Mar Lake, doubling the Bori i Fontestà the section of gallery under Carrer 
add other alternative resources also networks, the Urgell-Mallorca hydrant, Tarragona and the valve works in the 
available to the City Council, bringing the Clot Park branch line and control Espanya Industrial Park, as well as the 
this up to a total of 950,000 m3 and of the Wellington-Llull system (the work done on the Montjuïc and Palau 
representing an equivalent saving in Waters Building) to Ciutadella. Nacional gallery.
potable water. In 2010, CLABSA finalised to a In the operations and management 
As a result of the impetus that great extent the most important sphere it should also be stressed that, 
resulted from the drafting of the supervision of the work on the system in 2010, a number of new groundwater 
Technical Plan for Harvesting for the supply of treated water from network installations were brought 
Alternative Water Sources within the El Prat Wastewater Treatment on line, of which special mention 
the City of Barcelona, CLABSA Plant to the Montjuïc hills. This work should be made of a new well, in the 
continued along the same lines, required the laying of 3.4 km of D200 University area, new connections to 
investing in systems for harvesting mm, including a downstream tank irrigation systems in the Montjuïc 
non-potable water (groundwater with a capacity of 100 m3 located at hills and the improvement of the 
and treated water) to increase the level 70 on the Montjuïc hills. disinfection of the Paral•lel Tank, all of 
services supplied from this source which has been designed to improve 
and, as a result, to further reduce the quality of the water.
the percentage of potable water 
used by municipal services. Project 
packages, nos. 9, 10 and 11, to which 
the reminder of the cohesion funds 
have been destined include, inter alia, 
465
620
785
794
22 Report on activities
2010
1.6 
Other activities 
of note
At the request of the Control of Waste Discharges 
Barcelona City Council, in the Barcelona Sewer System
CLABSA extended its In 2010 the metropolitan assignment 
for the control of discharges into the 
activity in the city in Barcelona sewer system resulted in a 
order to cover other areas, total of 646 inspections, of different 
companies working within both the 
such as the installation municipal area of Barcelona and also 
of ducts in the sewers to its adjacent metropolitan areas. In 
line with previous years this work also 
carry Fibre-Optics cables, included an emergency discharge 
the management of service (24 hours a day, 365 days a 
year) and the publishing of an annual 
hydrological warning edition of an atlas of potentially 
systems and the planning contaminating establishments in the 
Barcelona area. As an outstanding 
and development of innovation in 2010, we must stress 
installations for the the finalisation of the work on 
implementing the Environmental 
Pneumatic Collection of Agency’s remote control drainage 
Solid Urban Waste (RPRSU). network water quality system, which 
has been operational since the end 
of 2010 and which is scheduled to be 
extended during 2011.
On the other hand, 12 environmental 
incidents of varying kinds had to be 
attended to, as a result of bothersome 
smells, unregulated industrial 
dumping, either of unknown 
origin or as a result of accidents at 
industrial facilities, etc., both within 
the municipality of Barcelona and 
its Port Area, as well as in adjacent 
metropolitan municipalities.
CLABSA 23
Development of Fibre-Optics Management of 
Ducts in the Barcelona the Besòs River Waterway 
Sewer System Park Warning System
Those telecommunications operators The management of the River Besòs 
that are extending their networks Waterway Park warning system has 
in Barcelona continue with their been handled by CLABSA since 2000. 
preference for taking advantage of This park was built in two phases: the 
the sewer system as their installation first consisted of the stretch running 
vehicle of choice. The sewers are, in between the municipalities of Santa 
fact, a far safer medium for Fibre- Coloma de Gramenet and Barcelona, 
Optics cables (as long as they are duly while the second is the stretch 
protected and secured in ducting) that was extended in 2004 in the 
than trenches dug up in the city municipality of Sant Adriá de Besòs, as 
streets. Furthermore, a sewer-based far as the mouth of the river.
Fibre-Optics network is quick to install, 
more dynamic to use and avoids all The Waterway Park warning system 
the inconveniences and disruptions operated without any incidents of 
experienced by citizens when the note during 2010, thereby enabling 
streets are being dug up. the members of the public visiting the 
park to fully enjoy its services. During 
The length of the Fibre-Optics cable this period six warnings were issued, 
ducting installed in the sewer system in as a result of inclement weather 
2010 was 25 km, with 16 of them having conditions, while on one occasion the 
been laid by a single operator, which park was partially flooded.
means that the total length of sewer 
mains currently fitted with Fibre-Optics 
cable ducts, serving eleven of the city’s 
operators, is now 550 km. 
24 Report on activities
2010
Management system alert River Park Besòs. 
Chart numbers warning
7
alerts in 2010
1
2007 2008 2009 2010 partial flooding of the park
33
35
23
7
CLABSA 25
Assistance with List of Urban Cleaning projects and site work - Year 2010
Urban Cleaning 
As in previous years, Barcelona City Actions Amount (€) Status on 31/12/2010 
Council continued to promote the    
development of pneumatic-collection Supervision of the Work to consolidate the 1.730.934 Finalised 
systems, which has resulted in new connections to the RPRM general network
projects and works being undertaken. Supervision of the work to double 1.126.969 Finalised 
In both the pneumatic collection the Diagonal-Poblenou RPRM Centre
of waste and other spheres, such 
as mini-waste collection centres or Supervision of the work to double 1.685.686 Finalised 
cleaning yards, the City Council once the Vila Olímpica RPRM Centre
again entrusted CLABSA with the Supervision of the work on 5 881.074 Finalised 
development work of these projects. neighbourhood green points
The Company drew up the project for 
adapting the mobile RPRSU systems Project for the Carmel-Clot Cleaning Yard 1.900.000 Projected
and also drew up a project for a 
cleaning yard, over the Carmel-Clot 
tank, which will contribute to the 
optimisation of the functioning of the 
City’s new cleaning contracts.
By the start of 2010 CLABSA had 
finalised the supervision of four work In 2010 technical assistance work Other Sewer 
sites in the waste sphere, on which finalised at the site of the RPRM System Work 
work had started in 2009, for a total mobile to fixed conversion in Gran 
of 5.4 million Euros, co-financed by de Gràcia, along with the supervision The model set up by CLABSA for the 
European Cohesion Funds, these were: of the mechanical work on the RPRM management of urban drainage has 
the consolidation of connections to the network at Ronda General Mitre been so successful that many other 
RPRM (Pneumatic Municipal Waste (Puig-Reig in Carrer Balmes). towns and cities are also adopting 
Collection) mains network, doubling it. As a result, on occasions, CLABSA 
the Diagonal-Poblenou RPRM Centre, Apart from the actions indicated has been asked to provide a range 
doubling the Villa Olímpica RPRM above, the work of technical of public authorities with technical 
Centre and the construction of five assessment also continued for the assistance and collaboration in 
neighbourhood green points. promoters of the areas of expansion drawing up specific projects. This work 
of the RPRM system, i.e. the new has made it possible for the CLABSA 
In 2010 CLABSA carried out inspection technological district 22@barcelona, vision of urban drainage to be shared 
work on five pneumatic collection the Bagursa offices for the Marina del and applied in a number of areas 
sites, co-financed by State Local Prat Vermell urban development, and beyond its habitual spheres of action.
Investment Funds: Poblenou network the Barcelona Sagrera Alta Velocidad 
consolidation phase 1; Poblenou (High-Speed Train) Consortium. The most important projects taken 
network consolidation phase 2; on, outside the metropolitan area was 
Poblenou network consolidation the drafting of a Master Plan for the 
phase A, adaptation of mobile Tarragona Sewer System. Tarragona 
system and doubling of the Vila is a city with a population of 140,000 
Olímpica RPRM Centre. and has a sewer system that is 280 
km long. To this end a 2D simulation 
Likewise, another notable inspection model was created for the whole 
activity, undertaken in 2010 by CLABSA sewer network, i.e. a simulation of 
on behalf of the Barcelona City Council the hydraulic behaviour of both the 
Directorate of Urban Cleaning Services, sewer system and surface run-off 
was the auditing of the centres at throughout the municipality.
the Vila Olímpica, La Maquinista and 
Diagonal-Poblenou, along with their 
associated networks.
26 Report on activities
2010
Other aspects of 
management 
2.1 Innovation
2.2 Human resources
2.3 Commitments 
 to the community
2.4 Environmental action
CLABSA 27
28 Report on activities
2010
2.1 
Innovation
Over the last few In continuation we attach a brief 
years the level of selection of the main projects 
in this sphere. 
R&D&I activity by  
CLABSA, which has SOSTAQUA Project:
always played a “Towards a Self-Sustaining Water 
Cycle” (www.sostaqua.com). This 
significant role in the macro-project, financed with CENIT 
technological progress (Ministry of Industry, Tourism and 
Trade) Funds and led by the AGBAR 
of the company, has Group, was finalised in 2010. In 
undergone a notable it CLABSA developed a line of 
investigation for the evaluation of 
increase. A number rainwater, in collaboration with, among 
of ambitious projects others, the University of A Coruña. 
Work has now been completed on the 
that work began on campaigns for the characterisation 
five years ago were of rainwater throughout the full 
urban water cycle, along with the 
brought to completion, analysis of the possible technologies 
while a number of new for the treatment required to make 
this water suitable for required uses. 
projects were also set in In the end a final study of rainwater 
motion that are going treatment techniques was drafted, 
which included key aspects, such as 
to represent important the most appropriate uses for the 
advances in terms of rainwater, how a characterisation 
campaign should be focussed, how to 
urban drainage in the design system for rainwater collection 
near future. and storage, as well as a proposal for 
the best available technologies for the 
recovery of rainwater. 
CLABSA 29
Rainwater Harvesting Proposal for Better DSU Medium and Long Term 
in Urban Environments: (Unitary Discharge System) Strategies for Flood 
With regard to this question, an R&I and DSS (Separating Discharge Management in Urban 
Alliance financing project (under the System) Technologies in and Peri-Urban Areas:
title “Rainwater Harvesting”) also Rainfall Episodes: Phase 2 of this project, based on the 
came to an end. This project was In 2010 work went ahead on the implementation of methodologies 
complementary to the SOSTAQUA development of this project, with for the evaluation of risks associated 
project and centred on the the finalisation of phase 1, which with the flooding of urban and 
development of an excellent tool to analysed the available technological peri-urban areas, as well as on an 
assist with decision making in the improvements for the treatment of estimation of overall changes in the 
formulation and design of systems for the discharges of the sewer systems short, medium and long term in 3 
the harvesting of rainwater in urban (DSU’s), according to legal, technical actual cases, one of which is in the 
environments, including aspects such as and economic criteria. This in turn Raval District of Barcelona.
quality requirements, the dimensioning resulted in the development of a 
of rainwater storage tanks and the tool to support the decision for the Finally, within the sphere of flooding 
selection of the best treatment selection of technologies. Work also management and climate change, 
technologies, in order to adapt this began on phase 2, complementing work started on two European 
water to the desired urban uses.  the analysis of technologies on the projects, CORFU and PREPARED, with 
 basis of technical visits to actual DSU financing from the 7th Framework 
Coordinated Sewer System treatment installations in countries Program. CLABSA is participating 
Management-Treatment: such as France, Germany and Spain.  in both of these projects as a 
collaborator and also as the leader 
Throughout 2010 work continued on  for some of the tasks. Specifically in 
the second phase of this project that, the CORFU Project, which analyses 
on the basis of financing by the AGBAR flooding management strategies in 
Group (CETaqua), is concerned with the urban areas of European and Asiatic 
development of the prototype for an countries, in order to improve the 
innovative tool, based on mathematical resilience of response with regard 
models and artificial intelligence tools, to floods in the future. On the other 
that will provide support for sewer hand, PREPARED analyses strategies 
system and water treatment managers to meet future challenges in supply 
in the form of the coordinated and drainage, as a consequence 
management of infrastructures (tanks, of climate change. Both of these 
pumping, sluice gates, treatment units projects are set to continue over a 
in Wastewater Treatment Plants, etc.) in period of four years, 2010-2013. 
order to avoid negative effects for the 
receptive medium, particularly DSU’s 
(Unitary Discharge Systems).
30 Report on activities
2010
2.2 
Human 
resources
The company’s constant A significant effort was made in 
investment in safety- 2010 with regard to training, with 
2.9% of the hours worked during 
training, the application the year being dedicated to this end, 
of best practices and the representing an increase in the total 
number of training hours registered 
adaptation of equipment in the previous year, in particular with 
and installations, made it regard to specific technical training. 
The costs of training amounted to 
possible to keep lost time 3.9% of total staff costs.
accident rates at levels 
that were lower than 
those of other comparable 
industrial sectors.
CLABSA 31
Our team, in terms of qualifications 2010
Management staff and holders of advanced-level degrees 41 2,9 %
Holders of medium-level degrees 22 of hours spent
training
Specialized technical staff 36
Auxiliary staff 19
Total 118
Main features of staff 2010 3,9 %
Average age (years) labor costs devoted
36,6 training
Average time of service (years)  7,82
% personnel turnover rate  11,5
% women out of total 28,81
% salary gap between women and men  12,84
% employees working flexible hours  79,66
% employees working part time 11,02
Occupational Health and Safety 2010
Incident rate 7,37
Frequency rate 41,57
Severity rate 0,42
Absenteeism rate 5,8
Number of accidents  9
Incident rate = (number of accidents involving lost time/average staff) x 100 
Frequency rate = (number of accidents involving lost time/number of hours worked) x 1,000,000 
Severity rate = (number of days sick leave due to accidents/number f hours worked) x 1000
Training 2010
Hours of training 6292
Hours of training on occupational health and safety  545
Number of people trained 52
(those that logged over 5 hours training)
32 Report on activities
2010
2.3 2.4 
Commitment to Environmental 
the community action 
The dissemination Year after year CLABSA has given its technicians and scientists, university 
of information to the support to activities programs such as representatives, public authorities and 
“How Barcelona Works”, an initiative public/private services companies. Of 
public at large, and to run by the City Council, and “When the 1,311 visitors, 15% were from abroad.
experts throughout it Rains in the City”, managed by the 
Barcelona Contemporary Culture On 9th October the Urgell Retention 
the world, with Centre (CCCB). These are educational Tank, with a capacity of 16,000m3, 
programs, designed for schoolchildren was inaugurated, with the aim 
regard to Barcelona’s who want to learn about the constant of improving the city’s drainage 
experiences of transformation of our city, and problems. The new tank was 
managing urban organized at the rainwater-retention specifically installed to avoid periodic 
tank, beneath the Joan Miró Park, flooding in Carrer Comte d‘Urgell, 
drainage is an area during academic year 2009-2010,  Avinguda Roma, Avinguda Paral•lel 
with 780 visitors. and the Raval, and also to minimise 
that deserves our the discharge of contaminating 
constant attention. In 2010, CLABSA also received visits substances onto the city’s beaches 
from groups of people interested during heavy rainfall. The new tank is 
in learning about the Barcelona located in the middle of Carrer Comte 
experience. These visitors came from d’Urgell, between Carrer Mallorca and 
a range of different backgrounds: Carrer València, in a densely populated 
part of the city. As a result special care 
had to be taken with environmental 
aspects to avoid, as far as possible, 
inconveniencing residents. Many 
citizens, some 450, attended the 
opening ceremony, expressing their 
interest in the operational system for 
this infrastructure.
In 2010 one of the CLABSA projects also 
received the recognition of the IWA 
(the International Water Association) 
and was awarded two Project 
Innovation Awards, one at European 
level, the 2010 PIA Europe Regional 
Award; and the other at worldwide 
level, the 2010 PIA Global Award. 
Both of these prizes were awarded 
for the COWAMA Project, as the best 
management project, for the control 
and monitoring of the discharge 
episodes of the drainage system. 
CLABSA 33
2.4 
Environmental 
action 
Urban drainage is The commitment to environment different construction companies, in 
a basic service with protection is, therefore, a fundamental the tendering stage, and subsequently 
value that CLABSA has erected as the as a guide to the environmental 
a very well known focal point of its business strategy. monitoring of the work as it is actually 
environmental This commitment takes the form being carried out on site.
of excellent management, aimed 
function. at minimizing discharges into the In order to bring about this action 
receiving environment, the responsible an environmental report form has 
use of resources in the development been designed, which must be filled 
of the company’s business and the in for each project, and which allows 
dissemination and promotion of for improvements to be made by the 
best practices in the sustainable companies that are awarded the work. 
management of urban drainage. This environmental appraisal of the 
work is controlled, by CLABSA, for each 
 of the sites where work is being done, on 
Environmental impact the basis of a management manual and 
of site work in the city periodic monitoring reports that show 
Within the framework of the the environmental appraisals of the site, 
Cohesion Fund projects and site in comparison with those specified in 
work undertaken in 2008, a work the project and in the offer made by the 
methodology was developed for the contractor, and must also include any 
evaluation of the impact of the work incidents, documents or alerts that may 
on the city and the effectiveness of occur. In this way, at all times, Barcelona 
the corrective measures that have City Council has access to rigorous and 
been applied to it, both during the objective information regarding the 
project design phase and when it is monitoring of environmental aspects 
being implemented. In this way, the of all of the work done in the city, in the 
impact of the work, on the population, widest sense.
with regard to waste and landscaping,  
among other aspects, is appraised on Water Quality
the basis of objective criteria and an 
analysis is then undertaken to discover In recent years, CLABSA’s environmental 
to what extent the palliative measures actions have been aimed at reducing 
proposed at the project level will the impact of the direct discharge 
minimise these aspects. of wastewater or rainwater into the 
receiving environment. Significant 
According to the policy marked advances have been made in innovative 
out by the Barcelona City Council, projects, as described above, and also in 
all of the projects drawn up by the installation of more reliable sensors 
CLABSA have to be accompanied by at the points of direct discharge into 
an environmental report. This is a the sea, with a view to obtaining better 
document that serves as a basis for information that has made it possible to 
the presentation and evaluation of the ensure that these are properly managed.
34 Report on activities
2010
In recent years, Meticulous management of CO2 Emissions Calculation 
CLABSA’s rainwater-retention tanks allows for and Compensation
flooding to be prevented and, at the 
environmental actions same time, allows for the prevention CLABSA specified the compensation 
have been aimed at of the polluting of Barcelona’s for CO2 emissions, calculated for the 
coastline. It is calculated that, in 2010, year 2009, as a result of the company’s 
reducing the impact good management prevented 1,121 activities. This was estimated at 301 
of the direct discharge tonnes of highly polluted waste from MT and included emissions produced 
being discharged directly into the sea. as a result of electricity, gas, fuel and 
of wastewater or paper consumption, as well as the 
 emissions resulting from the travel of 
rainwater into the Responsible company employees.
receiving environment. Consumption Compensation for 100% of emissions 
The second point of preferential has been carried out via the www.
attention is that of the responsible CeroCO2.org initiative, specifically in the 
consumption of resources. In 2007 El Bote mini hydroelectric station project 
CLABSA implemented a series of and rural electrification in Nicaragua.
ambitious measures to reduce the 
consumption of resources, focusing on 
water, electricity, paper and fuel.
In 2010 the electrical energy 
production goals were achieved, 
through the introduction of solar 
photovoltaic panels, which produced 
20,353 kWh. The anticipated goals for 
solar thermal energy production were 
also achieved.  
 
CLABSA 35
Environmental Data 2010
Resource Consumption Value Units
Electricity 1.628.518 kWh
Natural gas 4.784 m3
Diesel for vehicles 9,7 m3
Potable water public network 2.800 m3
Municipal groundwater 793.993 m3
Paper 3.213 kg
Waste Generated Value Units
Mechanical equipment 1.980 kg 1.121 MT
Electrical and electronic equipment 170 kg waste not thrown into the sea
Paper kg for share of the tanks
5.466
Toners and ink cartridges 128 kg
% of waste recycled or reused 100 % 20.353 kWh
Environmental Expenses Amount (€) photovoltaic energy produced
Investment in assets designed to protect the environment 205.370 
Auditing and environmental-management expenses 31.489 
Expenses of environmental training/awareness 4.011 
% of business turnover covered by technical environmental audits 100%
% of business turnover covered by environmental policies 100%
Anti-Pollution Protection Value Units
Flotsam not discharged to sea due to retention tanks 1.121 MT 7.744 kg
Number of checks run on industrial discharge 646 Uts generated waste
Number of checks run on industrial discharge 12 Uts 100% recycled or neutralization
36 Report on activities
2010
Financial 
data 
3.1 Management report 
3.2 Financial statements
3.3 Auditor’s report
3.4 Board of directors’ statements
CLABSA 37
38 Report on activities
2010
3.1 
Management 
report
In 2010 stress must Summary of the Activities In October work was completed on 
be placed on the of Most Interest the building of the Urgell Rainwater 
In 2010 there was a significant Retention Tank, which was then 
following events as decrease in variable services for integrated into the urban drainage 
the most relevant: the Barcelona City Council, in comparison harvesting system for the city of 
with previous years, as anticipated. Barcelona. This tank allows for the 
new Contract-Program This was due to the finalisation of water that is delivered by the drains 
drawn up with the many of the actions that had been in Carrer Comte d’Urgell and adjacent 
initiated in 2009. streets, to be temporarily retained, 
Barcelona City Council, in this way reducing the periodic 
which will remain CLABSA also projected a total of 13 flooding suffered by the lower reaches 
actions with a total value of 18.7 of the city, as well as the discharge of 
in force throughout million Euros. Of particular relevance contaminants, both onto the beaches 
2010 and 2011, and were the projects for the Carmel-Clot and into the Port, during rainfall 
Tank installations, with its associated episodes. This tank consists of a single 
the bringing on line cleaning yard, as well as the main 16,000 m3 body, installed underground 
of two singular new drain laid in Avinguda de l’Estatut beneath Carrer Comte d’Urgell, 
and the different local networks in between Carrer Mallorca and Carrer 
installations: the Carrer the Ciutat Meridiana and Roquetes València, and divided into 3 cleaning 
Comte d’Urgell Tank districts. In short, the total cost of the lanes that run parallel with its longer 
package of investments projected over side, and is connected up to a well 
and the infrastructure the last three years has amounted to from a groundwater accumulation 
to bring treated water 117 million Euros. tank, which is used to clean the tank 
Furthermore, CLABSA also supervised and to supply exterior non-potable 
from the Metropolitan 30 work sites, with a total value of water. For the most part the volume of 
Environmental Agency 37.1 million Euros, in particular the water accumulated is emptied out by 
Treatment Plant, at El work on the Urgell tank, with a pumping, in this way complementing 
retention volume of 16,000 m3, and the regulatory function of the Escola 
Prat de Llobregat, to the pipeline for supplying treated Industrial Tank, which has been in 
the facilities on the water to the Montjuïc hills, with a 100 service since 2000.
m3 downstream tank situated at level 
Montjuïc hills. 70 on the hills. Work also took place 
on the supervision of the laying of 
4.2 kilometres of secondary network 
drains, in the different districts of the 
city, civil engineering work continued 
on the Carmel-Clot Flood-Prevention 
Tank and got underway on the 
Avinguda de l’Estatut drains, entering 
and leaving the tank.
CLABSA 39
With regard to the services provided In the chapter covering work done 
by the Metropolitan Environmental for third parties, special emphasis 
Agency, special emphasis must be must be placed on the handover of 
placed on the delivery of the projects the Tarragona Sewer System Master 
for the Riera de la Salud Detention Plan, which represented an important 
Basin in Sant Feliu de Llobregat, which milestone for those in charge of the 
has a capacity of 69,000 m3; and service in Tarragona, as well as a new 
the Estrella Tank in Badalona, with a start in the management thereof. 
capacity of 20,800 m3; work on which Total revenues for this item were 
started in 2011, plus the finalisation of 2.25 million Euros, representing a 
the Barberà del Vallès Master Plan. significant decrease in comparison 
In 2010 work also continued on the with the previous year.
supervision of the work on the La  
Bunyola anti-DSU tank, with a capacity Rainfall and Rainfall 
CLABSA has projected a of 15,000 m3, located in the Prat de Episode Management
Llobregat area. Likewise, as mentioned 
total of 13 new actions above, work was also completed Total annual precipitation registered 
2
for an amount of 18.7 on the supervision of the laying of in 2010 was 630 l/m , 5% above the 
a section of treated water pipeline historical mean. Despite this being an 
million euros. (between pg. de Zona Franca, Carrer average rainfall in historical terms it 
A) and the pumping station located was the highest registered in the last 
at the Water Treatment Plant (ERA) at eight years and, as a result, 2010 can 
the Llobregat Wastewater Treatment be considered as a year of hydrological 
Plant (EDAR), which completed the recovery. There were no rainfall 
infrastructure of over 9 km that episodes of particularly high intensity, 
runs from this EDAR to the Tres Pins which meant that only two alert 
Nursery on the Montjuïc hills. The statuses were declared and in neither 
In the sphere of alternative water activity of controlling discharges to case was emergency level reached.
resources, the finalisation of the the sewer system network included During the 73 days of significant 
work and bringing on line of the inspections of 650 companies, rainfall the drainage system tanks 
pipeline, which carries treated although mention must also be filled either fully or partially on 28 
water to the Montjüic hills, was a made of the fact that in 2010 two occasions, retaining almost 4.4 million 
tremendously important milestone automatic quality stations were square metres of water, and avoiding 
for both the Barcelona City Council brought on line in System 7 (Sant the discharge of 1,100 tonnes of 
and Metropolitan Environmental Feliu de Llobregat), the data from flotsam directly into the sea.
Agency, insofar as it represents which are sent to the CLABSA Control 
tangible progress in the harvesting Centre and can be consulted in real In terms of the River Besòs flooding 
of alternative sources for uses that time at the CLABSA offices. The alert system, in 2010 there were 
do not require the quality of potable installations of the Sant Llorenç Basin six alert situations and one crisis 
water. A system of groundwater have been used on 48 occasions, situation, resulting from episodes of 
supply, associated with the Fira-2 without any incident, and form a vital heavy rainfall. These alert levels result 
Tank, was also incorporated to the cog in the safety system protecting in the closing of the waterway park 
harvested installations, plus 21 new downstream urban areas from due to the flooding of the access area. 
consumption points were connected, flooding. Income from these activities During these episodes, and following 
along with the already existing ones. amounted to 0.9 million Euros. the established protocol, warnings 
The most notable of these was the were given sufficiently in advance for 
Magic Fountain, on the Montjuïc hills, A total of 25 km of new fibre-optic the park to be safely evacuated.
irrigation and the filling of the lake in ducts were installed in 2010 and there 
are now 550 km of drains through The support for the quality 
the Espanya Industrial Park. which fibre-optic cables run. The management of Barcelona’s bathing 
revenues from this work in 2010 waters continued in 2010 with its 
amounted to 2.6 million Euros. characteristic elements: electronic 
panels on the beaches, regular 
updating of information on the 
City Council Beaches Website, the 
application of the Manual of Actions 
to be taken in cases of discharges into 
Barcelona’s bathing waters.
40 Report on activities
2010
Aspects Relevant Evolution of income - Year 2010 
to Management Figures in millions of €
With regard to Management Systems, 
and in accordance with the Quality 
(ISO 9001:2000), Environment (ISO 
14001:2004) and Occupational Health 
and Safety (OSHAS 18001) Standards, 
the control audits were carried out 
with satisfactory results. With regard 
to the CLABSA workforce, on 31st 
December 2010 this consisted of 118 
employees, who had taken part in 117 
training actions, having dedicated 2.9% 
of their working hours during the year.
In 2010, and in order to neutralise 4,8 million
the impact that the company’s of net patrimonial value
activity could end up having on the 
environment, the quantity of CO2 
emissions in 2009 was evaluated and 
consequently compensated. Given 
the great care that is taken with 11,0 million
regard to responsible consumption 
of resources and, in general, with total assets
regard to environmental matters 
associated with the company’s 
activity (recycling, energy efficiency, 
photovoltaic energy, etc.), the impact 
was evaluated at 301 tonnes of CO2, 5,0 million
which were then compensated for 
by the corresponding provisions to 2007 2008 2009 2010 of own funds
projects of an environmental character 
in the third world.
Once again this year, special mention 
must be made of the recognition 
by the IWA, International Water was 4.8 M€, while total assets 
Association, of one of CLABSA’s amounted to 11 M€, with shareholders 
projects, awarding the distinction equity of 5 M€.
of two international prizes, one at  
European level, the 2010 PIA Europe Forecasts 
Regional Award; and the other at a for 2011
worldwide level, the 2010 PIA Global 
Award. Both of these were awarded In the coming year, 2011, as well and, as a consequence, the assignment 
to the COWAMA Project, considering as the fixed items anticipated in of new projects. With regard to 
it to be the best management project, the Contract-Programs, both with fibre-optic cable laying activities, the 
for the control and monitoring of Barcelona City Council and the forecast revenues are in line with 
episodes of discharges into the Environmental Agency, a further those of previous years and, as a result, 
drainage system. decrease in terms of variable services below those of 2010. All in all, a priori 
for both the City Council and third expectations are for a year in which 
In this last year, closed on 31.12.2010, parties is expected, given that once the there will be a decrease in activity in 
income for CLABSA fell by 13.3%, to actions that are currently underway terms of the work contracted out by 
10.3 M€. This was basically due to the have been brought to a close the year local administrations, although there 
reduction in invoicing for variable will be very much marked by the fact is some hope that a limited recovery 
services provided to both Barcelona that 2011 is an election year, which will may be evident in the second half of 
City Council and third parties, which have a repercussion on those activities the year, as a consequence of the start 
yielded a net profit of 0.5 M€. Net related to the work done by CLABSA of a new legislative cycle.
Asset Value on 31st December 2010 
10,59
11,14
11,8
10,3
CLABSA 41
3.2 
Financial 
statements
Balance sheet  (€ thousands) 
Assets 2009 2010
Intangible fixed assets. Concession 0 0
Net tangible fixed assets 4.907 4.801
Accounts receivable 4.554 2.845
Cash and banks 3.598 3.395
Total assets 13.059 11.041
Liabilities 2009 2010
Share capital plus reserves 4.422 4.502
Net profit for the financial year 805 529
Amortization fund (private capital) 2.975 2.975
Accounts payable, suppliers and others 4.857 3.035
Short-term loans 0 0
Total liabilities 13.059 11.041
42 Report on activities
2010
Profit and loss account (€ thousands)
Operating Income 2009 2010
Barcelona City Council 6.178 4.729
Other income 5.709 5.578
Total income 11.887 10.307
Operating Expenses 2009 2010
Staff costs 5.898 4.502
Sundry expenses 2.901 529
Services to third parties 1.449 2.975
Depreciation and Provisions 799 3.035
Total expenses 11.047 9.810
Operating Profit/Loss 2009 2010
Operating Profit/Loss 840 497
Financial and extraordinary profit 233 208
Provision for Corporate Tax -268 -176
Net profit 805 529
CLABSA 43
3.3 
Audit report
44 Report on activities
2010
3.4 
Statements by 
board members 
 In accordance with the a) The Board Member, Mr. Joan Puigdollers i Fargas, 
holds the following positions in companies with the same, 
provisions established in similar or complementary activities:
Section 3 of Article 229 of the Company Positions or Duties
EMSSA Board Member
Spanish Capital Companies Act, ATLL Board Member
with regard to share holdings 
or positions held in companies b) The Board Member, Mr. Carlos Campos Callao, holds the 
with the same, similar or following positions in companies with the same, similar or 
complementary activities:
complementary activities, Company Company Activity Positions or Duties
below we attach the statements Aquagest soluciones  Water and the Sole Director 
industriales, S.A. environment. after  30/06/10 
made by Board Members with Unipersonal  
Labaqua, S.A. Environmental services and Sole Director 
regard to this aspect:  analysis, risk prevention after 06/09/10
and consultancy  
Ingeniería, tecnología y Management of the full Sole Director 
servicios del agua y medio water cycle. after 21/06/10 
ambiente, S.A. (SEDELAM)
Ambitalis, A.I.E. Technical and legal Chairman 
 assistance in matters of after  30/06/10 
environmental law.
Aqua ambiente Holding and hydraulic Board Member 
servicios integrales, S.A. engineering. after  1/06/10
Sistemas de transferencia Activities related to drying Sole Director 
de calor, S.A. equipment, based on hot after 30/06/10
 air convection processes.  
IELAB calidad, S.A. Provision of services Joint Director 
and products for the after  30/06/10
application of quality in 
testing laboratories.
CLABSA 45
c) The Board Member, Mr. Alejandro Jiménez Marconi, Companyia d’aigües de Sabadell, S.A. 13,25%
holds the following positions in companies with the same, 
similar or complementary activities: Aguas de Cartagena, S.A. (ACUACAR) 45,91%
Agbar Chile, S.A. 33,65%
Company Company Activity Positions or Duties Aquagest región de Murcia, S.A. 99,99%
Drenatges urbans Full water cycle Vice-Secretary Agbar UK Ltd. 100%
del Besòs, S.L.  (non-member), 
after 3/11/2010 Aguas Cordobesas, S.A. 5%
Empresa d’aigües i serveis Full water cycle Vice-Secretary Agbar ConoSur Limitada 0,001%
de Cervera i la Segarra, S.L.  (non-member), Aigües del Segarra Garrigues, S.A. 22%
 after 02/11/2010
Agbar Latinoamérica 99,99%
Empresa municipal de Full water cycle Board Member, 
aguas y saneamiento de  after 13/10/2010 Inmobiliaria Mina, S.A. 5,94% Board Member
Murcia, S.A. (EMUASA)  Aguas de Levante, S.A. 100%
Secomsa aigües, S.L. Full water cycle Vice-Secretary Jiangsu Water co Ltd 71,5%
(non-member), 
after 17/11/2010 Agbar Brasil tecnologias e serviços 99,99%  
em saneamento, Ltda. 
Agbar Perú, S.A. 99,99%
d) The Board Member, Mr. Ciril Rozman Jurado, holds the Aqua ambiente servicios integrales, S.A. 99,99%
following positions in companies with the same, similar Districlima, S.A. 19,20%
or complementary activities:
Agbar su kanalizasyon yatirim 99,99%  
Company Company Activity Positions or Duties ve isletme anonim sirketi
Aquagest Andalucía, S.A. Full water cycle Board Member Girona, S.A. 31,42% Board Member
Empresa municipal Full water cycle Board Member
de abastecimiento y 
saneamiento de Granada, Company Indirect Holding
S.A. (EMASAGRA)
Aquagest soluciones industriales, S.A. Unipersonal 99,99%
Bristol Water PLC Water supply Director 
until 29/11/2010 Companyia d’aigües de Palamós, S.A. 55,9%
Aguas de Cartagena Supply, sewer system and Reserve Board Aigües d’Osona, S.A. 24,49%
 wastewater treatment Member Conducció del Ter, S.L. 47,99%
in Cartagena de Indias until  29/09/2010 
(Colombia) Empresa municipal mixta d’aigües de Tarragona, S.A. 48,99%
 
China Oriental Water Holding Board Member Aigües Sant Pere de Ribes, S.A. 97,38%
company limited Aigües del Segarra Garrigues, S.A. 1%
Fundación Aguas Design and promotion Reserve Delegate Drenatges Urbans del Besòs, S.L. 50%
de Cartagena of plans and projects until  29/09/2010
 associated with the  Aguas término de Calvià, S.A. 80%
full water cycle  
 Aquagest medio ambiente rubatec – AMSA, A.I.E. 45%
Jiangsu Water CO. Limited Holding Director Aigües de l’Alt Empordà, S.A. 48,6%
Empresa municipal de Full water cycle Vice-Chairman Depuradores d’Osona, S.L. 24,50%
aguas y saneamiento de  after  13/10/2010
Murcia, S.A. (EMUASA) Anaigua, companyia d’aigües de l’Alt Penedès 100% 
  i l’Anoia, S.A. Unipersonal
Aguas municipalizadas de Full water cycle Board Member 
Alicante, empresa mixta after 16/06/2010 Empresa d’aigües i serveis de Cervera i la Segarra, S.L. 49%
Secomsa aigües, S.L. 48,97%
Aquagest medio ambiente aqualia, A.I.E. 62,5%
e) The Board Member, SOCIETAT GENERAL D’AIGÜES DE BARCELONA, 
SA holds the following share holdings and positions in companies Sorea, sociedad regional de abastecimiento de aguas, S.A. 0,01%
with the same, similar or complementary activities: Aigües del municipi de la Selva, S.L. 20%
Company Direct Holding Positions or Duties Aquagest Andalucía, S.A. 50%
SOREA Sociedad Regional de  Aquagest promoción técnica y financiera 100% 
99,99% 
Abastecimiento de Aguas, S.A. de abastecimiento de agua, S.A.
Aguas Argentinas, S.A. Simmar, serveis integrals del Maresme, S.L. 36%
25,001%
Aguas provinciales de Santa Fe, S.A. Empresa mixta d’aigües de la Costa Brava, S.A. 41,24%
10,88%
Aquagest Levante, S.A. Construccions i Rebaixos, S.L. Unipersonal 100%
99,99%
Interagbar de México, S.A. de CV Ambitalis, A.I.E. 59,89%
100%
Mina pública d’aigües de Terrassa, S.A. 32,58% Vice-Chaimanship Aigua de Rigat, S.A. 68,46%
Interagua servicios integrales del agua,  Aguas de Montilla, S.A. 25%
100% 
S.A. Unipersonal Aquaourense sociedade provincial de augas e medio ambiente, S.A. 66%
46 Report on activities
2010
Aguas Vega-Sierra Elvira, S.A. 20% Agbar cono sur, Limitada 99,99%
Aguas y Saneamientos de Torremolinos, S.A. 47,5% Inversiones aguas del gran Santiago, S.A. 100%
Empresa municipal de abastecimiento y saneamiento de Granada, S.A. 25% Empresa depuradora de aguas servidas mapocho-trebal limitada 51%
Edar Cádiz-San Fernando, agrupación de interés económico 11% Inversiones aguas metropolitanas, S.A. 57%
Teidagua, S.A. 49,68% Aguas Andinas, S.A. 28%
Aguas de Albacete, S.A. 74% Aguas Manquehue 28%
Aguas de Valladolid, S.A. 100% Aguas Cordillera, S.A. 28%
Pozos y recursos del Teide, S.A. 99,98% Gestión y Servicios, S.A. 28%
Canaragua, S.A. 100% Eco-riles, S.A. 28%
Gabinete de ingeniería hidráulica, S.A. 20% Análisis ambientales (ANAM), S.A. 28%
Aguas del Teide, gestión integral del servicio, S.A. 50% Aguas de Saltillo, empresa mixta 45%
Aguas de Arona, S.A. 82,38% Compañía hispanoamericana de servicios, S.A. (CHAS) 50%
Aguas de la Habana, S.A. empresa mixta 45% Brisaguas, S.A. 25,50%
Sagapyr, S.A. 45% Aguas de la Habana, S.A. empresa mixta 41%
Aquagest Extremadura, S.A. 55% Inversiones iberaguas limitada, S.A. 28%
Sistemas de transferencia de calor, S.A. 100% Empresa de servicios sanitarios de los lagos, S.A. 15%
Proveïment d’aigua, S.A. 14,14% Empresa depuradora de aguas servidas 50%
Ribatallada, S.A. 10,65% Taizhou golden harbour water company limited 71,55%
Aigües de Blanes, S.A. 15,40% China oriental water company 71,55%
Aigües de Girona, Salt i Sarrià de Ter, S.A. 24,8% Taizhou golden state water company limited 65,5%
Aigües de Matadepera, S.L. 23,8% Nanjing golden state chengbei wastewater treatment company, Ltd. 71,55%
Revermina, S.L. Unipersonal 32,58% Aguas de Puertollano, S.L. 48,99%
Patmina, S.L. Unipersonal 32,58% Aguas de Avilés, S.L. 74%
Depuraigua, depuradora d’aigües, S.L. 17,91% Aquagest medio ambiente, S.A. 99,99%
Obres i canalitzacions Mina, S.L. 32,58% Geie ifem, AIE 51%
Serveis de l’aigua, S.A. 32,54% Sociedad mixta de aguas de León 49%
Inmobiliaria Mina, S.A. 18,20% Canaragua Sur, S.A. 100%
Aguas de Jumilla, S.A. 49% Eicoh explotaciones, S.L. 100%
Sermubeniel, S.A. 49% Canaragua medio ambiente, S.A. 100%
Aigües municipals de Paterna, S.A. 49% Aguas de Benhavís, S.A. 22%
Empresa municipal de aguas y saneamiento de murcia, S.A. (EMUASA) 49% f) The Board Member, COMPAÑÍA CATALANA DE SERVICIOS, S.A. 
Aguas de Lorca, S.A. 49% holds the following share holdings and positions in companies 
with the same, similar or complementary activities:
Aguas de Cieza, S.A. 49%
Ingeniería, tecnología y servicios del agua y medio ambiente, S.L. (SEDELAM) 100% Company Direct Holding Positions or Duties
Aguas municipalizadas de Alicante empresa mixta (AMAEM) 50% Jaume Oró, S.L. 99% Board Member
Aigües i sanejament d’Elx, S.A. 49% Aguas Torrelavega, S.A. Board Member
Empresa mixta d’aigües de l’Horta, S.A. 49% Aqua Campiña, S.A. Board Member
Aigües de Cullera, S.A. 47,62% Compañía de servicios medioambientales do Atlantico, S.A. Board Member
Aguas del arco Mediterráneo, S.A. 74% Empresa mixta de medio ambiente de rincón de la Victoria, S.A. Board Member
Empresa mixta de aguas residuales de Alicante, S.A. (EMARASA) 50% International services inc, S.A. Unipersonal Board Member
Labaqua, S.A. 100% Jaime Franquesa, S.A. Board Member
Comercial de aguas, S.A. (COMAGUA) 100% Limpieza e higiene de Cartagena, S.A. Board Member
Eco-neteges especials, S.A. 25,97% Limpiezas urbanas de Mallorca, S.A. Board Member
Bristol water holding, Ltd. 100% Servicios especiales de limpieza, S.A. Board Member
Bristol water core holdings, Ltd. 100% Aguas municipais de Arteixo, S.A. Board Member
Verdan group, Ltd. 100% Empresa mixta de limpieza de la Villa de Torrox, S.A. Board Member
Bristol water, Plc. 100% Empresa municipal de desarrollo sostenible ambiental de Úbeda, S.L. Board Member
Bristol water services, Ltd. 100% Empresa municipal de aguas de Algeciras, S.A. Board Member
Agbar environnement limited 100% Empresa municipal de aguas de Benalmádena, S.A. Board Member
Bristol wessex billing services 50% Ecoparc del Besòs, S.A. Board Member
CLABSA 47
g) Que el Conseller SERVICIOS ESPECIALES DE LIMPIEZA, S.A. té h) The Board Member, SERVEIS D’ESCOMBRARIES I NETEJA, S.A. 
les següents participacions i càrrecs en societats amb el mateix, holds the following positions in companies with the same, similar 
anàleg o complementari gènere d’activitats: or complementary activities:
Company Direct Holding Positions/Duties Company Positions or Duties
Aseo Yumbo, S.A. Esp.  1,00% Limpieza e higiene de Cartagena, S.A. Board Member
Compañía de limpieza 0,01%  
y embellecimiento, S.R.L.
FCC servicios Santo Domingo, S.A. 1,00% i) The Board Member FCC VERSIA, S.A. holds the following share 
FOCSA serviços de saneamiento urbano  holdings and positions in companies with the same, similar or 
0,01% 
de Portugal, S.A. complementary activities:
Proactiva aguas de Montería, S.A. Esp                                                  0,77% Company Direct Holding Positions/Duties
Proactiva Colombia, S.A.                                                                                     0,79% Beta de administración, S.A.  99,99% Board Member
Proactiva de servicios, S.A. Esp. 0,29% CEMUSA corporación Europea 100% Board Member 
Abastecimientos saneamientos del norte, S.A.  Vice-Chairmanship de mobiliario urbano, S.A. 
Aguas de Denia, S.A. Board Member CGT corporación general de transportes, S.A. 99,99% Board Member
Aguas Torrelavega, S.A. Board Member Estacionamientos y servicios, S.A. 100% Board Member
Aqua Campiña, S.A.  Board Member FCC logística, S.A. Unipersonal  100% Board Member
Compañía de servicios medioambientales Board Member Flightcare, S.L.  99,99% Board Member
do Atlantico, S.A. Navegación y servicios aeroportuarios, 100% Board Member
Empresa mixta de aguas y servicios, S.A. Board Member S.A. Unipersonal  
Empresa mixta de limpieza Secretary Versia holding Gmbh  50%
de la Villa de Torrox, S.A. Tratamiento industrial de aguas, S.A. Board Member
Empresa mixta de medio ambiente Board Member Colaboración gestión y asistencia, S.A. Board Member
de Rincón de la Victoria, S.A. 
Aparcamientos concertados, S.A. Board Member
FOCSA serviços de saneamiento urbano Board Member 
de Portugal, S.A. Conservación y sistema, S.A. Board Member
Gestión integral de residuos sólidos, S.A. Board Member Empresa mixta de tráfico de Gijón, S.A. Board Member
Jaime Franquesa, S.A. Board Member Equipos y Procesos, S.A. Board Member
Jaume Oró, S.L.  Board Member Santos Renting S.L. Unipersonal Board Member
La unión servicios municipales, S.A. Board Member Sistemas y vehículos de alta tecnología S.A. Board Member
Limpieza e higiene de Cartagena, S.A. Secretary Tratamiento industrial de aguas, S.A. Board Member
Limpiezas urbanas de Mallorca, S.A. Board Member
Servicios de limpieza integral Board Member 
de Málaga III, S.A.                                                                      
Servicios urbanos de Málaga, S.A.  Board Member
Sociedad ibérica del agua SIA, Board Member 
S.A. Unipersonal
Valorización y tratamiento de residuos, S.A. Board Member
Aguas municipais de Arteixo, S.A. Board Member
Empresa municipal de desarrollo sostenible Board Member 
ambiental de Úbeda, S.L. 
Aigües del Tomovi, S.A. Board Member
Ecoparc del Besòs, S.A. Board Member
Ecoparque mancomunidad del Este, S.A. Board Member
Ingeniería Urbana, S.A. Secretary
Tratamientos y recuperaciones Board Member 
industriales, S.A.  
Valoración y tratamiento Board Member 
de residuos urbanos, S.A. 
Societat municipal mediambiental Board Member 
d’Igualada, S.L.
Empresa mixta de aguas y servicios, S.A. Board Member
Gandia serveis urbans, S.A. Board Member
Zabalgarbi, S.A. Board Member
CLABSA
Clavegueram de 
Barcelona
Str. Acer 16 
08038 BARCELONA
At service 
of citizens