engineering & consultancy services since 1965 water and

www.intecsa-inarsa.es

Engineering & Consultancy

Services since 1965

WATER AND ENVIRONMENT

WATER ENGINEERING

GENERAL PRESENTATION // INTECSA-INARSA

TABLE OF CONTENTS

▪ Main References

PRESENTATIONWATER AND ENVIRONMENT p03

WATER ENGINEERING.PROJECTS .p04 CONTACT .p47

Chapter 01. Chapter 02.

▪ History▪ Experience▪ Clients

▪ Main References

WATER ENGINEERING.WORKS SUPERVISION .p24

Chapter 03.

▪ Main References

WATER ENGINEERING.CONSULTANCY .p39

Chapter 04.

WATER AND ENVIRONMENT //WATER ENGINEERING //

Our History

Main Clients

References

Experience

Water and Environment

Building on a long-established tradition in hydraulic engineering and water planning, the Waterand Environment Area relies on qualified professionals to cover all phases –planning, design andexecution– of the water cycle in the framework of sustainability and the environment: watermanagement and control (water planning, studies on aquifers and river engineering), waterstorage (design, management and safety of dams, reservoirs and tanks), water transport,distribution and use (water supply, sewerage and sanitation and irrigation systems, catchmentsystems, channels, drainage systems and pumping stations) and water quality (treatment,purification and desalination plants). Our ongoing challenge is to optimise water resources andtheir uses by applying sustainability criteria upon water use and protecting the waterenvironment so as to settle any conflicts between the environment and economic activities.

Public

Private

• European Commission.• Ministry of Agriculture, Food

and the Environment• Local administrations• River basin authorities

• Water treatment institutions• Authorities in Autonomous

Communities• State-owned companies

• Water distribution companies• Construction companies• Water system operating companies• Power companies• Ariab Mining Company Ltd.

Water engineering:• Studies: 200 standards and emergency plans.

250,000 hectares of irrigation.• Projects: 1,000 km of water pipes and distribution systems.

36,000 hectares of irrigation.• Supervising: Over 10 large dams

15,000 hectares of irrigated land.

Consultancy, design and works management or supervision.• Transport and distribution networks: pipelines and channels.• Storage infrastructure: dams, ponds and tanks.• Catchment works and pumping stations.• Treatment Plants: WWTP, Desalination.• Discharges, marine sewage pipes

Water pipes from the Desalination Plant (ITAM) ofLlobregat up to the Fontsanta reservoir in Sant JoanDespí. Urban section. Barcelona.


Water Engineering

2Projects


Rendered Services General Details

WATER AND ENVIRONMENT2. WATER ENGINEERING.

PROJECTS

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DESCRIPTION OF THE WORKS:The works involved the preparation and drawings of the detailed design of four concrete tankscomprised in a strategic water reserve that will ensure supply to the remaining facilities in the event ofan incident in primary water supply sources.

The project involves new premises with a total capacity of 1,000,000 m3, alongside auxiliary facilities,pipes and fittings, a 4 MW pumping station, a chlorination station, an electricity substation, SCADA,service buildings and urbanisation works. It is worth noting that tanks will have a 120 m diameter and25 metres of height, as well as a cover executed through an aluminium self-supporting dome.

DETAILED DESIGN OF STRATEGIC DRINKING WATER STORAGE TANKS IN JEDDAH

(SAUDI ARABIA) AT FAISALIYAH SITE.

55212

• Year of completion: 2015• Amount of the contract: € 850,000• Total investment: € 100,000,000• Client: DNGO CONTRACTING SAUDI

COMPANY, Construction Company contracted by THE NATIONAL WATER COMPANY.

• Drawing up of Detailed Design. • Structures.• Operation and hydraulic facilities.• Calculations for electrical installations.• Water treatment (chlorination facilities).Plan view drawings




PROJECTS

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DESCRIPTION OF THE WORKS:This contract comprised two similar projects at the Riyadh site:

• Salboukh Station

• TGSW Station

The works comprised the design and development of the detailed design of 6 metallic tanks with atotal capacity of 170,000 m3, as well as ancillary facilities, piping and fittings, a 4 MW pumpingstation, a chlorination station, an electricity substation, SCADA, service buildings and urbanisationworks. It is worth noting that tanks will have a 110 m diameter and 18 metres of height, as well as acover executed through an aluminium self-supporting dome.

RIYADH 1DETAILED DESIGN FOR

STRATEGIC DRINKING WATER STORAGE TANKS IN RIYADH

(SAUDI ARABIA) IN SALBOUKH STATION.

55215

• Year of completion: 2015• Estimate of the Contract: € 1,100,000• Client: DNGO CONTRACTING SAUDI

COMPANY, construction company also commissioned by THE NATIONAL WATER COMPANY.

Drafting of Detailed Design. • Structures.• Operation and hydraulic facilities.• Calculations for electrical installations.• Water treatment (chlorination facilities).Plan view drawings




PROJECTS

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DESCRIPTION OF THE SERVICES:This contract comprised two similar projects at the Riyadh site:

• Salboukh Station

• TGSW Station

The services comprised the preliminary design and development of the detailed design of 6 metallictanks with a total capacity of 170,000 m3, as well as ancillary facilities, piping and fittings, achlorination station, an electricity substation, SCADA, service buildings and urbanisation works. Thetanks will have the same features as those designed for Salboukh Station, i.e. 110 m of diameter and18 m of working depth, with a self-supporting aluminium dome.

RIYADH 2DETAILED DESIGN FOR

STRATEGIC DRINKING WATER STORAGE TANKS IN RIYADH

(SAUDI ARABIA) IN TGSW STATION.

55215

• Year of completion: 2015• Amount of the contract: € 1,100,000• Client: DNGO CONTRACTING SAUDI

COMPANY, construction company also commissioned by THE NATIONAL WATER COMPANY.

• drawing up of Detailed Design• Structures.• Operation and hydraulic facilities.• Calculations for electrical installations.• Water treatment (chlorination facilities).Plan view drawings




PROJECTS

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DESCRIPTION OF THE WORKS:The works aimed to define the features of over 95 km of main pipes between the Lifting Station Écija 3located at the Tail Tank in Écija up to the Balancing Reservoir of Montepalacio, in order to replace theexisting system, as well as the design of several minor branchpipes intended for the service ofapproximately 125,000 people.The main line comprises 51,500 m of ductile iron 800 mm pipe, along with 52,000 m branches with adiameter of 250-500 mm and 8,000 m with a diameter of 110-250 mm.It includes the construction of the pumping station Ecija3, wtih a capacity of 2,268 m3/h; Hm=98 m;P=810 KW.In addition, to achieve a safe supply of over 24 h, the execution of 5 new regulating and supply tanks isnecessary (capacity between 15,000 m3 and 1,000 m3), such as:

• Montepalacio 15,000 m3 - Puebla 5, 000 m3

• Paradas 3,500 m3 - Arahal 6,000 m3

DETAILED DESIGN OF UPGRADE WORKS FOR THE UNTREATED

WATER SUPPLY SYSTEM IN THE FRAMEWORK OF THE WATER

SUPPLY AND SANITATION CONSORTIUM "PLAN ÉCIJA"

42046

• Year of completion: 2013• Contract Amount: € 317,729.00• Client: Aguas de las Cuencas del Sur

(AcuaSur)

• Drafting of Detailed Design. Pumping stations (raw water, treated water).

• Tanks.• Distribution networks.• Drinking water: supply and treatment.




PROJECTS

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DESCRIPTION OF THE WORKS:The designed tank consists of a reinforced concrete slab upon which a round reinforced concrete ring of36 m of internal diameter and approximately 6 metres of height is installed, with a capacity of 5,000m3. It includes inlet and outlet tank wells and a new ductile iron pipe (ø600 mm and 1,900 m of length)to feed the tanks.

The area of operation is very close to the Natural Park of Las Salinas de Torrevieja, which is why thedesign includes the elaboration of an exhaustive environmental impact assessment.

DRAWING UP OF SANTA POLA WATER SUPPLY NETWORK

UPGRADE DESIGN (AC/SANTA POLA). ALICANTE

32967

• Year of completion: 2012• Contract Amount: € 70,545.00• Client: MCT (Mancomunidad de los Canales

del Taibilla)

• Design drawing up

The Santolea dam




PROJECTS

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DESCRIPTION OF THE WORKS:Desalination plant designed to guarantee drinking water supply demand as a result of the increase inpopulation expected for Catalonia by 2025.

The Design includes the following works:

• Water catchment and pumping toward the desalination plant.• Mixture and microflocculation.• Filtering during 1st and 2nd stages through closed filters. Cartridge filtration.• Reverse osmosis unit.• Chemical cleaning and disinfection equipment.• Regulation of CO2, lime and sodium hypochlorite input into treated water.• Three treated H2O 20,000 m3 tanks.• Effluent treatment.• Electrical equipment.• Automation and control.• Building.• Landscape integration and environmentalmeasures.

DRAFTING OF BASIC DESIGN AND ENVIRONMENTAL IMPACT

ASSESSMENT OF THE DESALINATION PLANT OF THE

TORDERA II BASIN. MUNICIPALITY OF BLANES.

92800

• Year of completion: 2010• Total investment: €147,000,000• Client: ACA (l’Agència Catalana de l’Aigua)

• drawing up of design for the new desalination plant.

• Environmental Impact Assessment.• Daily flow: 200,000 m3/d• Annual flow: 60 hm3Plan view of desalination plant




PROJECTS

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DESCRIPTION OF THE WORKS:The WWTP of Ter is located in the municipalities of Cardedeu, Llinars and la Roca del Vallés. It cameinto service in 1966 with a capacity of 8 m3/s and can store up to 617,000 m3.

The ultimate objective of this design is to remodel and adapt the existing installations so that a flow of4 m3/s can be treated through a decantation and activated carbon filtering treatment (the existingtreatment); while an additional 4 m3/s is processed through a more complete clarification and sandfiltration (or ultrafiltration) process and a new activated carbon filter line so that the global capacityamounts to 8 m3/s (equal to the existing capacity) but with an upgraded treatment and animprovement of water quality. Water catchment takes place at the Pasteral reservoir and it istransported up to the WWTP through an open-channel 56-km long headrace. It takes up a 347,582 m2

area and can store up to 617,000 m3 of treated water in its tanks.

DETAILED DESIGN FOR THE REMODELLING OF THE

FACILITIES IN THE WWTP OF TER. BARCELONA

• Year of completion: 2009• Total investment: €24,600,000• Client: ACA (l’Agència Catalana de l’Aigua)

• Detailed Design • Full treatment plant of 4 m3/s• Remodelling and adaptation of the existing 4

m3/s plant.Plan view of WWTP




PROJECTS

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DESCRIPTION OF THE WORKS:The main irrigation infrastructure required for the development of a new hydraulic system aimed tooptimise the use of water resources (regulated water, groundwater and recycled water) was designedfor this project at the Costa Tropical (Granada, Spain). General details:

• 188 km of new piping with diameters ranging between 1,600 mm and 250 mm.• 52 new reservoirs and ponds with a total regulating volume of 600,000 m3.• 9 pumping stations with a total power of 8,600 kW.• Tertiary treatment for the Motril-Salobreña WWTP.• Connections to current irrigation infrastructures.• Complementary works, such as driving of posts, inlet and outlet wells, access routes, electric lines

and remote control systems.

BASIC ENGINEERING FOR THE IRRIGATION PIPE SYSTEM

STARTING AT RULES DAM, IN GRANADA, SPAIN.

32750

• Year of completion: 2009• Amount of the contract: € 963,322• Client: ACUAMED.


Map of the project




PROJECTS

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DESCRIPTION OF THE WORKS:The goal of this design is the construction of a drinking water tank for supplying water to the town ofCieza, in Murcia.

The designed tank has a capacity of 7,540 m3 and is at a height of 244.8 m above sea level (averageground height).

It is divided into two reinforced-concrete rectangular chambers, each of which can contain a maximumvolume of 3,770 m3. The dimensions of the inside of each chamber are 29 x 26 metres, while themaximum water sheet height is 5.10 metres.

TECHNICAL ASSISTANCE SERVICE TO THE DESIGN

DRAWING UP OF THE NEW TANK FOR WATER SUPPLY

SERVICE TO CIEZA. MURCIA.

32858

• Year of completion: 2009• Contract Amount: € 40,600.00• Client: MANCOMUNIDAD DE LOS CANALES

DEL TAIBILLA


Project drawings




PROJECTS

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DESCRIPTION OF THE WORKS:The design focuses on the construction of a general drinking water supply network of 95.5 km of lengthand diameters between 700 and 100 mm. Starting at the Picadas Reservoir and the DWTPs ofValmojado, treated water will be carried to the eight tanks in the municipalities located at theAlberche river basin to the north of the province of Toledo, at the Sierra de San Vicente. Also, waterinlets will be reinforced by means of four tanks at the Picadas II reservoir system. As a result, thefacilities will allow the supply of water to approximately 140,000 inhabitants of twelve municipalities(eight new ones and four as support), including the works specified below:

• Intake works at the Valmojado WWTP.• No. 1 piping along the A5 up to the regulatory tank.• Regulatory and emergency tank at Almorox.• No. 2 piping from the Regulating Tank up to Pelahustán.• Connection to the remaining municipal tanks.• Complementary works.

DETAILED DESIGN FOR THE EXTENSION AND UPGRADE OF

THE SUPPLY SYSTEM TO THE MUNICIPALITIES WITHIN THE

ALBERCHE RIVER BASIN AREA, SEVERAL MUNICIPALITIES.

TOLEDO

32788

• Year of completion: 2009• Contract amount: € 690,000.04• Client: AcuaTajo

• Detailed design for the general drinking water supply network.

Drawing of supply network




PROJECTS

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DESCRIPTION OF THE WORKS:The goal of this New Júcar-Vinalopó Pipeline is to transfer water from the Júcar river to the counties ofVinalopó, Alcantí and Marina Baja in the province of Alicante so as to alleviate water scarcity.

This new pipeline, with a total length of 75 km, elevates waters from height +1.00 m to +642.50 m. It isdivided into five sections, of which section A is the first one, with a length of 8,590 m and propelswaters from height +1.00 m to height +192.00 m, connecting with the Corbera tunnel where section Bstarts. The project comprises, among others: Intake works at Júcar River, 2 pumping stations and 1regulating reservoir of 200,000 m3.

DETAILED DESIGN OF THE NEW SECTION CONNECTING THE

LOWER REACHES OF THE JÚCAR RIVER WITH SECTION V. NEW

JÚCAR-VINALOPÓ PIPELINE.

31555

• Year of completion: 2007• Contract Amount: € 262,903.00• Client: Dragados-Cleop

• Detailed design for the general drinking water supply network.

• Technical control of design and works.Regulating reservoir




PROJECTS

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DESCRIPTION OF THE WORKS:The works focus on the elaboration of feasibility studies of infrastructure for sea and brackish waterdesalination, reuse of waste water and water conveyance for agricultural, recreational or urban areasaiming to implement an integrated management of existing supplies.

As a complement to the feasibility studies, economic studies to determine the cost of generated outputand of the prices to be negotiated with users were conducted.

FEASIBILITY STUDIES OF THE ACTIONS APPROVED BY VIRTUE

OF ROYAL DECREE 2/2004 INTEGRATED IN THE WATER

RESOURCE SYSTEMS OF MARINA BAJA AND VINALOPÓ-

L'ALACANTÍ

32519

• Year of completion: 2006• Contract Amount: € 609,000.00• Client: ACUAMED.

• Elaboration of feasibility studies.• Economic studies.

Water infrastructure studies




PROJECTS

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DESCRIPTION OF THE WORKS:The following amendments to the basic design are proposed: changes in the location of reservoirs,sectoral networks and the main drive pipe, as well as in main and sectoral pumping stations.

The main features of the action that was finally designed are:

• 6 regulating ponds with an aggregated capacity of 500,000 m3

• 4 pumping stations with an aggregated pump potential of 2,600 kW.• A branched drive iron pipe of 24 km of length and a Ø ranging between 1,000 and 300 mm.• Irrigation network for 4,000 ha, comprised of 130,000 m of PVC pipe (PN 6-10) with a Ø between

500 and 75 mm.• Automation and remote control of the whole system.• Civil works, hydro-mechanical elements and associated facilities.

AMENDMENT TO THE WATER DISTRIBUTION NETWORK

DESIGN FOR IRRIGATION AT THE RAMBLA DE MORALES. AREAS

OF LOS ALBARICOQUES, PUJAIRE, CORTIJO DE ABAJO,

BARRANQUETE, RUSCAS, AMONG OTHERS.

MUNICIPALITIES: NÍJAR AND ALMERÍA.

30931

• Year of completion: 2005• Contract Amount: € 161,874.60• Client: DRAGADOS

• Previous studies; needs and infrastructures.• Preparation of design amendment.

General view of the project.




PROJECTS

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DESCRIPTION OF THE WORKS:The towns along the banks of the Entrepeñas and Buendía reservoirs currently have independent watersupply systems with intakes in rivers, streams, reservoirs, water springs and wells, some of which arein poor condition and offer no supply guarantees. The purpose of the project is the design anddimensioning of a supply system of sufficient quality which can guarantee water supply.

The system will give service to 54 communities –although it could be extended to 58– with largelydispersed population of 8,600 people, reaching 41,000 people peaks during summer season. Theinfrastructure is dimensioned for a 25-year horizon with an output of 350 l/inhabitant per day.Demand in the future will be of 4,000 and 18,700 m3/day in the winter and summer respectively.

DESIGN OF WATER SUPPLY NETWORK FOR THE WATER

USERS ASSOCIATION LOCATED NEAR THE ENTREPEÑAS AND

BUENDÍA RESERVOIRS. CUENCA AND GUADALAJARA

32451

• Year of completion: 2005• Contract Amount: € 781,104.18• Client: Tagus River Basin Authority

• drawing up of design for the general drinking water supply network.

View of the surrounding area




PROJECTS

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DESCRIPTION OF THE WORKS:The designed works are included in the Southern Branch Pipe of the Project that conveys water fromthe Ebro river up to Aguadulce in Almería. In short, it is an open channel designed for a 50 m3/s flow.The essential features of the designed works are the following:

• Total length: 22,763 m, of which 15,233 m are channelled, 5,460 m tunnelled, 1,163 m in siphon,568 m in culvert and 338 m in discharge channels.

• The typical channelled sections used are trapezoidal cross-sections with a 4.00 m base and 4.80 mof height and rectangular sections with a 7.00 m base and 4.85 m of height. In tunnelled sections,they had a 2.85 m radius and in semicircular culverts, they had a 15.84 diameter.

• Some of the special works conducted are the tunnels of La Cazuela (1,380 km) and of Benlloch(4,060 km) and the Calaf and Puig Pedro aqueducts, with 320 and 248 m of lengthcorrespondingly.

• The project includes special elements of transverse drainage and junctions with roads, as well asthe restoration of affected services and environmental integration measures.

• The magnitude of the works can be reflected in its main features, such as 2,500,000 m3 ofexcavation, 700,00 m3 of made ground, 200,000 m2 of channel coating, 200,000 m3 of concretefor tunnel lining and 2,500,000 kg of steel in aqueducts.

DETAILED DESIGN OF THE TRANSFERS AUTHORISED BY

SECTION 13 OF ACT 10/2001 (NATIONAL HYDROLOGICAL PLAN). SOUTHERN BRANCH

PIPE. SECTION COMPRISED BETWEEN THE END OF THE

PUMPING OF COVES DE VINROMÀ UP TO THE START OF

SIFÓN DE LA BARONA. CASTELLÓN

32367

• Year of completion: 2004• Contract Amount: € 1,158,053.66• Client: Sociedad Estatal Aguas de las

Cuencas Mediterráneas

• drawing up of design for the general drinking water supply network.

Design drawing




PROJECTS

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DESCRIPTION OF THE WORKS:Connection between the ponds of Venta del Pobre and n.º 5 pond near Huercal-Overa by means of a70-km reversible steel pipe with 1,800 mm of diameter, with an adequate size to handle a 7 and 4.5m3/s North-to-South flow. The main elements are:

• "El Saltador" tank, with a capacity of 25,700 m3 and HDPE waterproof lining.• 59-km long helical welded steel pipe, Ø1,800• Overhead pipe in two 100 and 62.50 m sections over flow level with pile heights of 14.50 m and

7.70 m.• Instrumentation with 15 control valves, 184 triple function double air valves, 87 gate valves on

drains and 10 flow meters.• "Los Perales" pumping station equipped with 5+1 pumps.• "Los Perales" 132/25 kV electrical substation followed by a 25/6 kV transformer substation.• "El Honor" tank, with a capacity of 25.700 m3 and with HDPE waterproofing.• "Los Feos" pumping station equipped with 3+1 double suction vertical pumps.• 25 kv electric feeder from the substation designed at the "Los Perales" station, with 6.2 km of

length and a 25/6 kV transformer substation.

ALMANZORA-PONIENTE ALMERIENSE CONNECTION DESIGN, PHASE II.

SECTION: CUEVAS DE ALMANZORA-VENTA DEL POBRE.

DETAILED DESIGN OF THE TRANSFERS AUTHORISED BY SECTION

13 OF ACT 10/2001 (NATIONAL HYDROLOGICAL PLAN). SECTIONS 46.2 AND 47. CAMINO DEL CERRO

MINADO-VENTA DEL POBRE. ALMERÍA

32232

• Year of completion: 2004• Contract Amount: € 1,413,104.29• Client: Aguas de la Cuenca del Sur, S.A.

• Design drawing up.• Economic and feasibility studies.• Environmental studies.• Detailed engineering and design.Tank




PROJECTS

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DESCRIPTION OF THE WORKS:Act 10/2001 of 5 July, on the National Hydrological Plan, authorises water transfers from the LowerEbro sections up to Almería. The designed infrastructure presents the same layout as that in the Designof the Almanzora-Poniente Almeriense connection (also drafted by Intecsa-Inarsa for ACUSUR). As aresult, it was decided to base the works on those carried out during the above and resize the works foran 8.7 and 4.5 m3/s North to South flow as opposed to that applied by ACUSUR, changing the layout inthe final sections, resulting the new section of the El Saltador-Camino del Cerro Minado tunnel.The main works comprised:

• Upgrade and re-design of the intake works at the southern entrance of the El Saltador tunnel.• Design of 8.2 km long pipeline.• Water return well for the Segura River Basin Authority and dual outlet of 700 and 1,200 mm.

DETAILED DESIGN OF THE TRANSFERS AUTHORISED BY

SECTION 13 OF ACT 10/2001 (NATIONAL HYDROLOGICAL

PLAN). SECTION 46.1, SOUTHERN ENTRANCE OF THE

SALTADOR-CAMINO DEL CERRO MINADO TUNNEL. ALMERÍA

32393

• Year of completion: 2004• Contract Amunt: € 265,732.80• Estimate for construction works:• € 16,774,777.72• Client: TRASAGUA

• Detailed design. Pumping stations (raw water, treated water).

• Tanks.• Distribution networks.• Drinking water: supply and treatment.El Saltador tunnel exit




PROJECTS

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DESCRIPTION OF THE WORKS:The lift station on the Segura River is located on the Segura River siphon. It provides the Channel withsufficient flow, once it merges with the flow from the Taibilla river at the Bullas distributor, to properlyfulfil the demand by the Channels of Murcia and Alicante.

The designed works basically consist of replacing the currently existing pumping groups by new ones,replacing at the same time all electrical installations, including transformer stations and outdoor andindoor lighting. Changes were also made to the intake piping and a self-cleaning bar screen wasinstalled, all intending to enable the automation of the whole installation. Finally, remote control wasdesigned to control the station from the desalination plant of Sierra de la Espada.

TECHNICAL ASSISTANCE TO PARTICIPATE IN THE UPGRADE DESIGN OF THE LIFT STATION

ON THE SEGURA RIVER (MU/OJOS).

32349

• Year of completion: 2003• Contract Amount: €174,580.00• Client: MCT (Mancomunidad de los Canales

del Taibilla)

• Design drawing up • Full treatment plant of 4 m3/s• Remodelling and adaptation of the existing 4

m3/s plant.Presa de Alloz




PROJECTS

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DESCRIPTION OF THE WORKS:Due to the scarcity of resources in the regions of Vinalopó, Alacantí and Marina Baja, a 80 hm3/yearwater transfer from the Júcar River to Vinalopó was considered of general interest for the purpose of:a) avoiding the overuse of water resources in Vinalopó, allowing for the recovery of natural phreaticlevels, and b) alleviating water scarcity.

• Intake located at the right bank of the Cortes II reservoir by means of 3 vertical motor pumps anda high-pressure serial station with horizontal groups for a 10 m3/s flow with 500 m of manometrichead. 1,050 m drive pipe that ends at a surge tank of 35 m of height and a semi-underground600,000 m3 pond for weekly pumping regulation.

• El Ramblar hydropower plant, equipped with a Francis turbine for 7 m3/s and a 128 m head, withan installed capacity of 7,430 kW.

• Sochantre embankment dam with a clay core and rock filling walls. 77.85 m of height, 20 hm3 ofcapacity and a 40.50 m long uncontrolled spillway.

• Sochantre hydropower plant, equipped with a Francis turbine for 4.5 m3/s and a 82.7 m head,with an installed capacity of 2,650 kW.

• Linear design through abrupt orography by means of several tunnels lined with segments (18 km),siphons 2Ø1800 (13 km) and underground pipelines 2Ø1800 (40 km).

STUDY OF ALTERNATIVES AND BASIC DESIGN OF THE JÚCAR –

VINALOPÓ PIPELINE. VALENCIA AND ALICANTE

53802

• Year of completion: 2000• Estimate for the works: Included in two

contracts. The first one for an amount of € 483,586.10 (in a Joint Venture with a 55% share) and the second for € 119,913.93.

• Client: Aguas del Júcar, S.A.


Design drawings


Water Engineering

3Works Management & Supervision



WATER AND ENVIRONMENT3. WATER ENGINEERING.SUPERVISION OF WORKS

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DESCRIPTION OF THE WORKS:Upgrade works for the water supply network to the municipalities of Bigastro, Southern Orihuela(Hurchillo, Arneva and Desamparados) and Beniel. The works included:

• New regulating tank in Orihuela, with 5,100 m3 of capacity, a maximum depth of water of 5.5metres with two equal chambers, executed in reinforced concrete.

• Pipelines: 16,538.00 linear metres of ductile iron pipes with a thickness equal to that of formerclass k09 and a DN between 400 and 100 mm. In the most urban area, pipes and special parts areconnected through restrained iron joints and the rest are connected through flexible joints andboilerwork special parts. It is distributed in the following sections:

• Conveyor pipelines: 11,589 metres with DN350 and DN300.• Distribution pipe-Beniel Service Pipe: 2,785 metres with DN400 and DN350.• Service Pipe to Bigastro 1: 710 metres with DN 200 and DN100.• Service Pipe to Bigastro 2: 373 metres with DN200.• Service Pipe to Hurchillo: 208 metres with DN100.• Service Pipe to Desamparados: 873 metres with DN200.

MANAGEMENT, CONTROL AND SURVEILLANCE OF THE WORKS

UNDER PROJECT 08/13 FOR THE SUPPLY TO BENIEL

(AC/ORIHUELA AND OTHERS). ALICANTE

42087


del Taibilla)

• Site control and surveillance




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DESCRIPTION OF THE WORKS:Execution of a new pipeline to renew the existing installation in the most damaged areas of LosAlcázares branch. The new pipe, which increases the hydraulic capacity according to current needs(FD700) will present the same layout as the two existing pipes which will be out of service once theworks are completed and which run through urban areas. The main features of the works are:

• Installation of a K9-class ductile iron pipe with a polyethylene sleeve and a 700 m diameter. Thetotal length of the pipeline, divided into two sections, is 2,856 m. Outlets are designed for pipedischarge operations, as well as vent pipes for pipe ventilation.

• Connection works: each of the designed sections connects, both at the start and the end, with thefacilities in the existing Los Alcázares branch, which has two fibre-cement pipes with 300 and 500mm of diameter respectively. The necessary connections will be conducted in the surroundings ofthe existing wells (Rio Negro, Roda, Punta Calera and Los Barcos) using steel parts.


UNDER PROJECT 09/12 FOR THE PARTIAL RENEWAL OF THE

PIPELINE SERVICING THE MUNICIPALITY OF LOS ALCÁZARES. MURCIA.

42071


del Taibilla)


Works on the pipeline




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DESCRIPTION OF THE WORKS:The detailed design is aimed to provide sufficient regulation to increase flexibility with regard to thecurrent dependence on the water supply coming from by the Channel of the Segura River, improvingthe exploitation and the security of the supply provided from the Channel by the Commonwealth ofCanales del Taibilla to several towns in Vega Media del Segura county. The works subject to Controland Surveillance of the construction of the storage reservoir have consisted of:

• 250,000 m3 reservoir with an EPDM waterproof lining e=2 mm.

• Connections of the reservoir with the DWTP and pumping station.• By-pass to reservoir.• Adaptation of pumping station, 800 kVA transformer station and 1000 kVA electric generating

set.• Alongside the instrumentation, control and automation of the new facilities and integration

thereof.• Loading Plan.• Drafting and implementation of an Emergency Plan.

CONTROL AND SURVEILLANCE OF WORKS UNDER PROJECT

07/09 OF THE NEW STORAGE RESERVOIR TO STORE WATER WITHIN THE AREA OF DWTP

SIERRA DE LA ESPADA. MURCIA.

42019


del Taibilla)

• Management, control and surveillance of design and works.

• Environmental studies.• Cost planning and control. Aerial view of the reservoir




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DESCRIPTION OF THE WORKS:Quantitative and qualitative control, as well as technical assistance to the works at the Canal Bajo delos Payuelos, supplying irrigation water to 15,000 ha in the province of León. The design flow rate is 36m3/s. The works comprise 30.5 km of channel with the following typical cross sections:

• Concrete-lined trapezoidal cross section (26.5 km)• Horseshoe cross section (2.5 km)• Two-pipe 2600 mm siphon (1.5 km).

It also includes the construction of three ponds with EPDM lining with a total capacity of 800,000 m3

TECHNICAL ASSISTANCE FOR THE MANAGEMENT OF THE

WORKS AT CANAL BAJO DE LOS PAYUELOS. PHASE II. MAIN

CHANNEL. (LEÓN, SPAIN)

32952

• Year of completion: 2013• Contract Amount: € 1,240,751• Client: AcuaNorte


Horseshoe cross section in pipe




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DESCRIPTION OF THE WORKS:The main features of the works are:

• Maximum design flow 1.9 m3/s• Length of pipes DN-1400 17 km, thickness of pipe: 12.5 mm• Number and length of piles (DN-2500) 2 units / 337 m• Number of built wells and manholes 87 units• Aqueduct span over the Tordera River 54 m• Aqueduct span over the Vallogorguina water stream 35 m

MANAGEMENT OF WORKS FOR THE PROJECT OF THE SECTION

ITAM TORDERA - ETAP CARDEDEU MAIN LINE. SECTION

III. SANT CELONI BRANCH –HOSTALRIC BRANCH.

BARCELONA

92796

• Year of completion: 2012• Contract Amount: € 1,171,300.00• Client: ATLL (Aigües del Ter - Llobregat)

• Site management

Aerial view of the works




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DESCRIPTION OF THE WORKS:The project under this management service comprises the construction of a new regulating tank toservice the municipalities of Albatera, San Isidro, Catral and Dolores as well as their inlet and outletpipes. For the construction of a new tank, the existing semi-underground and out-of-service tanks mustbe torn down before commencement. The system comprises the following facilities:

• Supply branch and inlet well• Header tank for the regulation of water supply, with a 18-m radius circular disposition and 4.8 m

of working depth that provide it with a storage capacity of 5,000 m3 approximately, as well aswaterproofing.

• Distribution pipe and oulet well.


UNDER PROJECT 05/09 FOR THE NEW WATER SUPPLY TANK SERVICING ALBATERA, SAN

ISIDRO, CATRAL AND DOLORES. MURCIA.

32971


del Taibilla)

• Management, control and surveillance of design and works.

View from the inside of the tank




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DESCRIPTION OF THE WORKS:Sagnier Plant:

• Generating capacity 8,530 m3/d• Quality of H2O inlet TDS 5,200 mg/l• Chlorides 2,756 mg/l• Quality of treated H2O outlet TDS 120 mg/l• Chlorides 65 mg/l

Mas Blau Plant:

• Generating capacity 8,530 m3/d• Quality of H2O inlet TDS 1,975 mg/l• Chlorides 2,756 mg/l• Quality of treated H2O outlet TDS 60 mg/l• Chlorides 20 mg/l

PROJECT MANAGEMENT SERVICES AND WORKS

MANAGEMENT SERVICES OF TWO REVERSE OSMOSIS PLANTS.

EL PRAT DEL LLOBREGAT. BARCELONA

92756


• Project management and works management of two WWTPs.

• Sagnier Plant: 8,530 m3/d• Mas Blau Plant: 8,530 m3/dSagnier and Mas Blau Plants




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DESCRIPTION OF THE WORKS:The works on the distribution network under this project comprised:

• Branch of Alhama: construction of 20,559 metres of GFRP pipe, SN 10,000 with diametersranging between ø900 mm and ø500 mm at the end section. With motor in-line tube valves, flowcontrol valves and control valves on the branch pipe that leads to the Carrascoy reservoir, as wellas safety valves.

• Branch of Carrascoy: construction of 1,018.00 metres of GFRP pipe, SN 10.00 ø500. With motorin-line tube valves and branch inlet flow control valves.

• Carrascoy reservoir: loose material reservoir with a useful capacity of 503,000 m3. Crest level at267 metres above sea level.

• Drafting and submission of Starting Operations Plan.• Drafting and submission of Emergency Plan.

WORKS MANAGEMENT FOR THE WATER DISTRIBUTION

NETWORK AT THE DESALINATION PLANT OF

VALDELENTISCO (NORTHERN AND SOUTHERN SECTOR OF

THE CAMPO DE CARTAGENA COUNTY). SECTION III: WORKS AT THE BRANCH OF ALHAMA, INCLUDING THE CARRASCOY

RESERVOIR. MURCIA

32656

• Year of completion: 2009• Contract Amount: € 538,970.00• Client: Aguas de la Cuenca del Segura

• Works management. Technical control of design and works.

• Environmental studies. • Planning and cost control.Aerial view of the reservoir




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DESCRIPTION OF THE WORKS:The main features of the works on the Drinking Water Supply Distribution Network and Treatment are:

Urban section• Maximum design flow 2.32 m3/s• Length of pipes DN-1000, DN1200 2 x 3.411 m• Number & length of piles (DN-2500) 4 units / 662 m• Number of built wells and manholes 36 units• Infrastructure and services affected 65

River section• Maximum design flow 2.32 m3/s• Length of pipes DN-1400 2 x 4 km• Pipe length DN-700 700 m• Number & length of piles (DN-2500) 4 units / 662 m• Number of built wells and manholes 34 units

WORKS MANAGEMENT OF THE PROJECT "DESALINATION PLANT FOR THE METROPOLITAN AREA OF BARCELONA. CONVEYANCE

OF PRODUCT WATER TO THE FONTSANTA TANK" AND

"EXTENSION FROM ABRERAFONTSANTA TO EL PRAT.

FONTSANTA-EL PRAT PIPELINE". BARCELONA

92769


• Works management, as well as drafting the project of executed works.

Works at the Distribution Network




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• Main ductile iron pipe of 17,732 m of length,• Works to connect with the Espinardo tanks.• Works to execute by-pass with the load break chamber for the connection between the Torrealta

DWTP and the aforementioned tanks• Control and remote control system for the facilities.

INSPECTION AND SURVEILLANCE OF WORKS

UNDER THE PROJECT 03/06 CONNECTING THE PEDRERA –

TORREALTA SYSTEM WITH MURCIA AND ALFOZ. MURCIA

32673


del Taibilla)

• Management, inspection and surveillance of the works.

• Environmental studies. • Technical control of design and works.• Cost planning and control.Underground pipe works




Co

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DESCRIPTION OF THE WORKS:The connection to the water distribution network managed by ATLL starts at the connection with themain pipe at the Fontsanta tank (Municipality of Sant Joan Despí). It allows to have a new water supplysource ensuring water availability at all times in the municipality of El Prat de Llobregat.

It comprises several pipelines surrounding the urban area. Length of pipes: 8,226 m D 700 to D 400.

PROJECT MANAGEMENT AND WORKS MANAGEMENT

SERVICES FOR WORKS AT THE UNTREATED WATER NETWORK

IN EL PRAT DE LLOBREGAT. BARCELONA


• Project management and works management for untreated water connection and drinking water distribution.

Aerial view of the reservoir

Section Length (m)DN

(mm)Material Weir boxes Vent pipes Drains

0 66.87 700 steel 1 - -

1 1,258 400 FD 1 3 5

2 3,139 600/300 FD 2 3 5

3 2,283 300 FD - 6 6

4 1,255 500 FD 3 2 2

5 110 400 FD - - -




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DESCRIPTION OF THE WORKS:The works in Section II - Cuesta with a length of 16,965 m mainly included:

• Initial section of 1,291 m comprising a reinforced concrete pipe with a sheet metal sleeve with aninternal diameter of 2,000 mm.

• 5,591 m tunnel with circular cross section and an internal diameter of 2.80 m.• 3,369 m siphon with underground pipe in reinforced concrete ditches with steel sleeves with a

2,000 mm internal diameter.• 6,714 m tunnel with circular cross section and an internal diameter of 2.80 m.

TECHNICAL MANAGEMENT AND QUALITY ASSURANCE OF

THE WORKS AT THE PIPELINE FROM THE JÚCAR RIVER TO

VINALOPÓ. SECTION II. CUESTA

32432

• Year of completion: 2007• Contract Amount: € 246,687.91• Client: Aguas del Júcar, S.A.

• Technical management of works and quality control.

Aerial view of the works




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Execution of a sea outfall marine pipe in 1,400 mm diameter pipes and 5,109 metres of length, out ofwhich:

• 315 metres are executed in a reinforced concrete driven pipe,• 2,485 metres are executed in polyethylene pipes in underwater drenches, and• 2,309 metres of submarine polyethylene pipeline. Equipped with the relevant stabilisation and

operating mattresses and concrete block protection so as to protect the held down pipelinesection from trawlers.

INSPECTION AND SURVEILLANCE OF THE WORKS

UNDER THE PROJECT 11/03 "SEGREGATION AND PRICE

MODIFICATION OF THE MARINE SECTION OF PROJECT 05/03

FOR A SEA OUTFALL FOR THE EVACUATION OF THE SALT WATER AT THE SEA WATER

DESALINATION PLANT OF THE NEW CHANNEL OF

CARTAGENA. MURCIA

32496


del Taibilla)

• Works control and surveillance.

Sea outfall works




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DESCRIPTION OF THE WORKS:Inspection and surveillance of construction works at a desalination plant, including a sea water inlet, asalt water outfall, civil works and equipment, a 65,000 m3 tank, which is the daily output of the reverseosmosis plant, and a 9 km impulse pump in 800 mm iron pipes. At present, the desalination plant has amaximum output of 24 hm3 of drinking water per year.

INSPECTION AND SURVEILLANCE OF

CONSTRUCTION WORKS AT THE SEA WATER DESALINATION

PLANT AT THE NEW CHANNEL OF CARTAGENA, MUNICIPALITY

OF SAN PEDRO DEL PINATAR (MURCIA).

32085

• Year of completion: 2006• Contract Amount: € 1,316,624.12• Client: MCT (Mancomunidad de los Canales

del Taibilla)

• Works control and surveillance.

Aerial view of the reservoir


Water Engineering

4Consultancy




CONSULTANCY

Co

de:

DESCRIPTION OF THE WORKS:Implementation of the Water Supply Infrastructure Viewer of the Commonwealth of Canales delTaibilla and data loading onto the system, enabling the use of a decision-making support tool makingthe information and analysis tools required for the use of data available for users.

UPDATING, TRACKING INCIDENTS AND ON-SITE DATA

GATHERING FOR THE GEOGRAPHICAL INFORMATION

SYSTEM OF THE COMMONWEALTH OF CANALES

DEL TAIBILLA. MURCIA

42053


del Taibilla)

• Implementation of a Water Supply Infrastructure Viewer (GIS)

GIS Viewer




CONSULTANCY

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DESCRIPTION OF THE WORKS:The Ministry of the Environment, through the Guadiana River Basin Authority, is developing aHydrological-Forest Restoration and Protection Plan for Rivers 2000-2008. Some of its goals are thefollowing:

• Cleaning and draining river beds.• Protecting, channelling and conditioning of river beds.• Landscape preservation.• Recovery of natural spaces in urban areas.• Impact recovery.• Resource centres, open air schools, visitors centres, nature interpretation and information

systems, etc.• Hydrological restoration and prevention of erosion.• Greenways Programme.• Actions for the conservation and restoration of biodiversity.• Fire protection infrastructure.

DESIGN OF PROTECTION AND REGENERATION OF NATURAL

AND RURAL AREAS IN THE SOUTHERN AREA OF THE GUADIANA RIVER BASIN.

PHASE I.

32360

• Year of completion: 2006• Contract Amount: € 684,915.05• Total investment: € 13,768,007• Client: CHG (Guadiana River Basin Authority.

MMAA)

• Hydraulic planning study.• Complementary works design.

Souther Area of the Guadiana river basin.




CONSULTANCY

Co

de:

DESCRIPTION OF THE WORKS:Detailed study of the situation of water supply at each town and municipality in Catalonia, analysis ofproblems (regarding the volume and quality of water) and gathering of information aboutinfrastructures (catchments, tanks, etc.). The actions to be defined ranged from building newinfrastructure to management measures. The diagnosis took into consideration the aspects related tothe municipal management of the service, the condition of the distribution network, the managementof the different catchments and the ratio between current prices and the actual supply costs, amongothers. Insight about these features was essential to determine the need to provide the municipalitywith new water supply resources.

• Inventory of existing infrastructures.• Inventory of actions under progress or scheduled.• Data compilation.• Study of prices.• Diagnosis, proposals and management measures.• Analysis of foreseen actions.

WATER SUPPLY AND DISTRIBUTION PLAN OF

NORTHERN CATALONIA. AREA 8: LLEIDA CENTRAL. LLEIDA

• Year of completion: 2005• Contract Amount: € 51,297.60• Client: Agència Catalana de l’Aigua

• Planning and programming of future supply actions to 145 municipalities and 426 communities.

Area under study.




CONSULTANCY

Co

de:

DESCRIPTION OF THE WORKS:Talavera de la Reina has suffered several damages caused by the Tagus River and its right-banktributary, the Alberche River, bursting their banks and flooding. To avoid this situation, the first stepwas to conduct a hydraulic study of the river bed to determine the required protection from flood flowsin each area, established at 950 m3/s for the Alberche River and 3,000 m3/s for the Tagus River. Moreprecisely, the designed and built protections have been the following:

• Flood embankment to face floods originating from the Alberche river.• Protection in urban sections by executing double walls.• Protection downstream form Talavera de la Reina through concrete screen walls.• Protection to the left river bank by executing semipermeable quarry-run dykes.

Landscape and structural restoration project:

• Restoration of Puente Viejo bridge for pedestrian use.• Walkways to both margins and conditioning of underpass.• Configuration of sports and leisure area upstream of Puente Nuevo.• Design of a cantilevered square over the river between Puente Viejo and Puente Metálico.

HYDRAULIC PLANNING OF THE TAGUS RIVER IN TALAVERA DE

LA REINA. TOLEDO

31002

• Year of completion: 2002• Contract Amount: € 350,591.50• Total investment: € 17,000,000• Client: Dragados, Proyectos y Obras, S.A.

• Hydraulic planning study.• Complementary works design.

Graphics




CONSULTANCY

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DESCRIPTION OF THE WORKS:The designs of "Airport of Madrid/Barajas. 15L/33R Runway andassociated taxiways" and "18L/36R Runway and associatedtaxiways" comprise the Jarama River course diversion works andthe channelling of water streams Tía Martina, La Plata, Valdebebas,Las Zorreras and La Vega.

The diversion of the Jarama River, considering a design flow rate ofQ500=900 m3/s established by the Jarama River Basin Authorityconsisted of a new low water channel that starts 300 m upstreamfrom the Berrocales dam and extends for 1,695 m. So as to imitatethe natural river course, the channelling has been designed using atrapezoidal 20-m wide section at its lowest base, 2H/1V rockfillembankments and 1.50 m of height.

For the channelling of streams, design flow rates for Q500 were: TíaMartina-La Plata-Valdebebas 180 m3/s, Las Zorreras 60 m3/s, LaVega 88 m3/s. All channellings comprise a channel and a pondupstream from the runways, a two-cell box under the runways ofapproximately 550 m of length, each cell with dimensions of 5.00 mx 3.70 m unless that of Tía Martina - La Plata - Valdebebas that is6.00 m x 4.70 m, and downstream from the runways up to theirdischarge into the Jarama River, the channel is protected by abreakwater.

UNDERGROUND ROUTING OF THE WATER STREAMS OF LA

VEGA, LAS ZORRERAS, VALDEBEBAS, TÍA MARTINA AND LA PLATA UNDER THE

NEW RUNWAYS OF BARAJAS AIRPORT AND JARAMA RIVER

DIVERSION AND COMPLEMENTARY ACTIONS.

53807

• Year of completion: 2000• Contract Amount: € 208,800• Client: INECO

• Previous studies; needs and infrastructures.• Drawing up of design amendment.

Aerial view of the works at the airport


OTHER

REFERENCES IN

SUPERVISION

OF WORKS

Client Year of CompletionMCT (Mancomunidad de los Canales del Taibilla) 2002

SUPPLY TO THE DISTRICTS OF ARCHIVEL, BARRANDA, LA ENCARNACIÓN IN THEMUNICIPALITY OF CARAVACA. MURCIA. THE PROJECT COMPRISES THE PIPELINE, A PUMPINGSTATION WITH DISINFECTION AND CHLORINATION FACILITIES, DRIVE PIPE, TANK AND THEREQUIRED BRANCHES.

Client Year of CompletionTrasagua 2004

DRIVE PIPE AT CUEVAS DE VINROMÁ. CASTELLÓNTHE PROJECT COMPRISES A CHANNEL THAT IS PART OF THE EBRO RIVER WATER TRANSFER.THE WORKS INCLUDE: DESIGN; ECONOMIC AND FEASIBILITY STUDIES; ENVIRONMENTALSTUDIES; DETAILED ENGINEERING AND DESIGN.

Client Year of CompletionAguas de la cuenca del Sur 2005

CUEVAS DE ALMANZORA – VENTA EL POBRE. ALMERÍADETAILED DESIGN FOR THE PIPELINE BETWEEN CUEVAS DE ALMANZORA AND VENTA ELPOBRE.

Client Year of CompletionAcuaTajo 2009

EXTENSION AND UPGRADE OF THE SUPPLY NETWORK TO MUNICIPALITIES WITHIN THEALBERCHE RIVER SYSTEM. TOLEDO. CONSTRUCTION OF GENERAL DRINKING WATER SUPPLYNETWORK WITH A TOTAL LENGTH OF 95.5 KM AND DIAMETERS RANGING BETWEEN 700AND 100 MM, USING ALREADY EXISTING RESOURCES.

GENERAL PRESENTATION // INTECSA-INARSA

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