Publication of main points of decisions to grant financial assistance under Regulation (EC) No 1164/94 establishing a Cohesion Fund

(1999/C 244/01)

LIST OF PROJECTS

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PROJECT No 97/11/61/009

1. Title

Urban environment in Catalonia

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Comité del Fimma ( Paseo Castellana 162 , E - 28071 Madrid ) Ayuntamiento de Mataró ( C/Pablo Iglesias 63 , Mataró ) Ayuntamiento de Tarragona ( Pl. de la Font 1 , Tarragona )

4. Location

4.1. Member State: Spain

4.2. Region: Catalonia

5. Description

A. Measures in Mataró

Project 1: Environmental regeneration, reforestation and improvement of the Mataró central park

The project consists of a town planning scheme sponsored by the municipality of Mataró under the general plan for the city. It provides for the enlargement of the existing central park from 27406 m2 to 138303 m2.

The project is to be carried out in two phases (1A and 1B), each of which represents a different type of assistance and with features reflecting the different spatial and topographical requirements on the two sides of the Camino de Diagonal.

- Measure 1 (phase 1A): a large green area is planned to be planted with local species such as poplar and black poplar. Access to the area will be surfaced.

Because of its open aspect, this area is to be developed as a look-out spot and leisure and picnic area overlooking the exhibition ground,

- Measure 2 (phase 1B): it is planned to create a path joining the central park with the Parc de Can Boada. In addition, an existing promontory is to be developed as a vantage point, where possible preserving the existing vegetation; the esplanade is to be used for activities associated with the exhibition ground. A garden or "Arboretum" is to be added, consisting of a variety of species of trees, thus establishing continuity with the trees in the old central park. Various types of public lighting are to be installed.

B. Measures to develop the Reus ravines

The municipality of Reus has submitted a series of coordinated measures for environmental rehabilitation in different parts of the city:

Project 2: Management and drainage of the Mina ravine and adjoining torrents

In the northern part of the city of Reus rainwater runoff from the Pedrera del Coubi and the Mas de les Animes roads will be intercepted and chanelled into the Boca de la Mina ravine. A tree-lined avenue will also be created on the available publicly owned land.

Project 3: Canalisation of the Pedret ravine

A main drain will be constructed to collect rainwater and waste water in the area, between the Riudoms highway (T-310) and the Escorial ravine; the existing canal will be cleaned up and covered over and the resulting land covering some 50000 m2 will be developed as a green area or city park.

C. Measures in Tarragona

Project 4: Rehabilitation of tips in a green area

Rubbish dumps will be covered with new soil enriched with organic substrate. The site and surface configuration will be restructured using slopes and various native species, including coastal scrub, undergrowth and pine, "bordales" and oak.

Two schemes will be carried out under this project:

Schemes 1 and 2: Rehabilitation of two rubbish dumps located in green areas: one in the northern sector N-420 (park plan 9) and the other in development zone 26 (park plan 10).

The approach in both cases will be the same. The land will first be prepared by closing the tips and releasing areas of 2,8 ha and 4,6 ha respectively. It is planned also to alter and smooth out their configuration, smooth out slopes and plough up the surface layer of the existing soil to create a new one with improved substrate and water retention capacity.

Planting will then be undertaken of various native species of different sizes and ages, mainly low ones, in order to give the area a clearly visible vertical structure. The pattern of planting will be non-uniform and natural, based on a hexagonal layout, making it possible to move in three directions and facilitating upkeep and the layout of future paths.

Measures are planned lastly to include maintenance and an environmental awareness programme.

Project 5: Rehabilitation of the landscape of Muro Verde

The area known as "Muro Verde" is located in the western part of the municipality of Tarragona; it is a strip of land separating the districts of Camp Ciar, Bonavista and Canonja. It is in a very rundown state owing to the high level of mortality of trees and plants.

It is planned to grub op and remove 1500 damaged, diseased and dead trees. In addition, replanting of various types of plants will be undertaken: 12000 trees, 10000 bushes, 9500 shrubs and 1500 aquatic plants.

6. Objectives

A. Project 1: Mataró central park

This project has several goals:

1. adopting an overall environmental approach by tightening policies on recycling and the conversion of waste into reusable material, optimising water use and introducing educational initiatives on the environment;

2. salvaging part of the area's potential in terms of its reserves of plants and trees affected successively by deforestation, deterioration and indiscriminate topographical change;

3. restoring the Mataró central park as an integral part of the city's vital green space;

4. linking the whole of the municipal area surrounding this green space by creating pedestrian paths joining districts with one another;

5. establishing a main highway link with the adjoining Can Boada park now being completed, an area with facilities for environmental education and an entrance to the Montnegre-Corredor natural park.

B. Measures to develop the Reus ravines

Project 2: Management and drainage of the Mina ravine and adjoining torrents

The principal aim of this project is to resolve the safety problems presented by flooding and the environmental damage caused by these water courses in the inner city. The decontaminated area to be drained covers 100000 m2.

Project 3: Canalisation of the Pedret ravine

It is planned to clean up and cover over the existing water course and develop it as a green space for the city.

C. Measures in Tarragona

Project 4: Regeneration of tips in a green area

Schemes 1 and 2: Rehabilitation of rubbish dumps located in development zone 26 (park plan 10) and northern sector N-420 (park plan 9). The aims in both cases are principally to transform areas that have suffered environmental damage into a green area and Mediterranean-type forest, to seek to achieve a spatial balance in a harmonious environment and lastly to raise public awareness of and provide education in environmental issues.

Project 5: Rehabilitation of the landscape and ecology of the Muro Verde area

The goals of this project are to:

1. devise newly planted areas with the priority aim of creating a protective belt of trees as a way of lessening the visual and psychological impact and the noise levels produced by industries in the western part of the city;

2. re-establish ecosystems characteristic of Tarragona, with a view to enhancing their environmental quality and potential as a teaching resource;

3. improve one of the main access routes into the city.

7. Work schedule

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8. Assessment of costs and socio-economic advantages

Project 1: Environmental regeneration of the Mataró central park

(a) In view of the difficulty of making an economic assessment of the project's social benefits, those that could be achieved include:

1. an improvement in the quality of life for the present and future population;

2. less reliance on the use of cars for reaching green areas;

3. greater awareness of the use of the natural environment through educational programmes on the rehabilitation of environmental systems, biological agents and knowledge of the environment.

(b) Jobs created (18 months):

- direct: 20

- indirect: 15.

Projects 2: Canalisation of the Mina ravine, and 3: Canalisation of the Pedret and Escorial ravines, both in Reus

(a) A cost/benefit analysis has shown that:

- the useful life of the facilities is 25 years,

- the assessment of the benefit to the environment is based on improvements in water quality, the protection of public water facilities and flood prevention.

(b) The economic analysis indicators are as follows:

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Project 2

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Project 3

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(c) The number of jobs created during the implementation period:

- Project 2 (8 months)

- direct: 10

- indirect: 5

- Project 3 (7 months)

- direct: 10

- indirect: 5.

Project 4: Rehabilitation of tips in Tarragona

(a) A cost/benefit analysis has shown that:

- the useful life of the project is: 25 years,

- total investment: ESP 104449 million,

- operating and upkeep costs are: ESP 5,2 million (5 % of the investment),

- environmental benefits: rehabilitation of an area of 73942 m2; development of a forest area of 69600 m2; extension of recreation and leisure areas for the city.

(b) The economic analysis indicators are as follows:

- IRR: 9,7 %

- NVA (AL 6 %): ESP 4 million

- c/b: 1,6.

(c) New jobs:

- implementation phase (2 to 3 years): 12

- operational phase: 3.

Project 5: Rehabilitation of the landscape and ecology of the Muro Verde area

(a) The benefits of this project are quantifiable primarily in social terms: the creation of recreation and leisure areas having a positive impact on the welfare of the population; improvements in the quality of life; improvements in air quality with the resulting positive impact on public and individual health.

9. Environmental impact analysis

These projects aim to achieve the following objectives for Community environmental measures laid down in Article 130r of the Treaty and the fifth Community action programme of policy and action in relation to the environment:

- preserving, protecting and improving the quality of the environment (the urban environment, in this case),

- protecting human health,

- guaranteeing rational utilisation of natural resources.

In practice the measures consist in rehabilitating rundown areas for the benefit of local communities, restoring plant and tree reserves and creating pedestrian paths linking districts with one another.

The project also contains other environmental proposals, including strengthening policies on recycling and reusable material, energy-saving measures and optimising the use of water resources.

10. (a)

Cost and assistance

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(b)

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/029

1. Title

Waste-water disposal and treatment for Vega Alta del Segura

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Comunidad Autónoma de la Región de Murcia

Consejería de Medio Ambiente, Agricultura y Agua

3.2. Address: Plaza Santoña, Murcia

4. Location

4.1. Member State: Spain

4.2. Region: Murcia

5. Description

Project 1: Calasparra waste-water treatment plant

The project involves a major expansion of the plant, making maximum use of the existing facilities. The existing municipal sewer system will be used unchanged.

The plant will provide secondary biological treatment using activated sludge with simultaneous nitrification/denitrification.

The plant will have a daily volume of 4000 m3/day in the design year for a population equivalent of 33000. The values for pollution in the effluent on entry are estimated at 500 mg/l of BOD5 and 500 mg/l of suspended solids. The planned results are 25 mg/l for BOD5 and 35 mg/l for suspended solids (in accordance with Directive 91/271/EEC). The planned results for sludge are: 22 % dry matter (dry solid waste), with a volatile solids content of less than 40 %.

The basic solution is to build a completely new water treatment system and to convert the current sludge handling system, converting the existing biological reactor into an aerobic sludge digester.

A building is planned to house the pretreatment facilities and the existing buildings (sludge dewatering and control building) will be improved.

The project also includes site development, landscaping, drainage, electrical installation, a control system, and ancillary and security systems.

The land on which the existing plant is built is owned by the municipality, which will also provide the land needed for the extension.

Project 2: Cehegín waste-water treatment plant

The project involves a major expansion of the plant, making maximum use of the existing facilities. The existing municipal sewer system will be used unchanged.

The plant will provide secondary biological treatment using activated sludge with simultaneous nitrification/denitrification.

The basic solution is to build a completeley new water treatment system and to convert the current water treatment system into a sludge handling system, converting the existing biological reactor into an aerobic sludge digester.

A building is planned to house the pretreatment and sludge dewatering facilities and the existing control building will be improved.

The project also includes landscaping, drainage, electrical installations, a control system, ancillary and security systems.

The land on which the existing plant is built is owned by the municipality, which will also provide the land needed for the extension.

Project 3: Waste-water treatment plant for Abarán

This project involves building a waste-water treatment plant for the municipality of Abarán, which straddles the River Segura. It includes the construction of a general sewer system to collect waste water and convey it to the treatment plant.

The planned sewer system consists of a general collector on the left bank of the river to collect waste water from the sewers on this bank, where the main part of the town is located. Another collector will carry waste water from the sewer system on the right bank across the river by means of pumps and syphons to the left-bank collector. The left-bank collector, a gravity sewer, will end in a chamber placed outside the urban area.

A main pumping station will pump the waste water from this chamber through a pressure line to the treatment plant. The pumping station will be equipped with a spillway to the river in case the pumping system should fail and to discharge suitably diluted excess flows.

Treated water will be discharged into the River Segura through an outfall which is also included in this project.

The plant will provide secondary biological treatment using activated sludge with simultaneous nitrification/denitrification. The treated water can be re-used either directly (in the area) or indirectly (downstream).

Project 4: Waste-water treatment plant for Blanca

This project involves building a waste-water treatment plant for the municipality of Blanca, which straddles the River Segura. It includes the construction of a general sewer system to collect waste water and convey it to the treatment plant.

The planned sewer system consists of a general collector on the left bank of the river to collect waste water from the sewers on this bank, where the main part of the town is located. Another collector will carry waste water from the sewer system on the right bank across the river by means of pumps and syphons to the left-bank collector. The first section of the left-bank collector will be a gravity sewer flowing into an intermediate pump station (with a spillway into the river). This pump station will pump the waste water through a pressure line to the head of a second left-bank collector carrying waste water from a community close to the town, at the end of which the main pump station will lift all the waste water to the treatment plant. Treated water will be discharged into the River Segura through an outfall which is also included in this project.

The draft project as described above includes: three pumping stations, collectors with diameters between 500 and 800 mm over 1,2 km and pressure mains with diameters between 315 and 350 mm over 2,5 km.

The plant will provide secondary biological treatment using activated sludge with simultaneous nitrification/denitrification. The treated water can be re-used either directly (in the area) or indirectly (downstream).

The municipality will provide the land on which to build the treatment plant. The collectors and force mains will run through public land or land provided by the municipality.

It is planned to obtain specialised technical assistance for monitoring the work.

6. Objectives

The main aim is to provide urban waste-water treatment facilities for communities along the River Segura and its tributary the Argos in order to safeguard the water quality and restore the environment of the Vega Alta section of the Segura. In addition, the project aims to implement Directive 91/271/EEC.

The project will affect a population equivalent of 135000 and provide a treatment capacity of 17500 m3/day.

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- working life of the investment: 20 years,

- operating and maintenance costs are covered by revenue,

- evaluation of the environmental benefits: improved water quality, public health,

- evaluation of the social benefits: reclamation of leisure areas.

(b) - The internal rate of return (IRR) is 16,58 % for Calasparra, 21,53 % for Cehegín, 11,31 % for Abarán and 3,18 % for Blanca.

- The total net present value of the projects is ESP 1137,3 million.

(c) Job creation:

- in the construction phase:

direct: 100;

indirect: 200 (21 months),

- in the operational phase:

direct: 20;

indirect: 5.

9. Environmental impact analysis

(a) These projects aim to achieve the following objectives for Community environmental measures laid down in Article 130r of the Treaty:

- preserving, protecting and improving the quality of the environment,

- protecting human health,

- guaranteeing rational utilisation of natural resources.

(b) The group of projects is intended to achieve the objectives laid down in the fifth action programme:

- sustainable management of natural resources by reducing pollution of water resources,

- appropriate management of water resources,

- improved quality of the urban environment,

- better public health and safety.

(c) The aim of the project is to control and collect urban waste water in accordance with Directive 91/271/EEC concerning urban waste-water treatment and the legislation transposing that Directive into national law.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/047

1. Title

Sogama project for the management of solid municipal waste in Galicia

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Xunta de Galicia

3.2. Address: Edificios Administrativos San Caetano Santiago de Compostela

4. Location

4.1. Member State: Spain

4.2. Region: Galicia

5. Description

This project is included in Galicia's management plan for solid municipal waste (SMW), which places particular emphasis on minimising waste, making maximum use through re-use and recycling, eliminating waste by means of incineration with energy recovery, and rehabilitating tips.

The regional government of Galicia will implement a programme to minimise re-use, selectively collect and recycle solid municipal waste in the region as part of its overall solid municipal waste plan. This programme will supplement Galicia's integrated system for the collection and treatment of solid municipal waste and provides for an awareness campaign including publicity on billboards and in the press, pamphlets and illustrations, mail shots and sectoral measures.

The programme also provides for the installation, over a three-year period, of "green islands", one for every 500 inhabitants, providing containers for the selective collection of glass, paper and board and plastics, as well as batteries and other toxic waste. Lastly, 10 centres will be set up to centralise the selectively collected waste. These centres will be equipped with paper and cardboard compactors, closed containers for the transport of paper and cardboard, discharge hoppers for glass, open containers for the transport of glass and "ampliroll" trucks.

The project receiving financing from the Cohesion Fund involves building the facilities needed to centralise the sorting and recycling of solid municipal waste and elimination of the residual waste.

The remaining facilities and infrastructure provided for under Galicia's solid municipal waste plan will receive public assistance under the same terms (financial, technical and management) as those financed by the Cohesion Fund, to ensure the balanced implementation of the overall plan.

The facilities to be financed by the Cohesion Fund under this Decision are:

(a) nine transfer centres, in Ribadumia, Poriño, Silleda, Vilaboa, Ferrol, Lugo, Viveiro, Ourense and A Rua, where SMW will be transferred from the collection trucks into hoppers, in which the waste will be compacted before it is sealed in closed containers;

(b) the compacting facilities comprise:

- a hopper,

- a pusher cylinder,

- an automatic container conveyer.

These facilities will be located inside a closed bay to minimise noise;

(c) a waste recycling, processing and fuel production plant consisting of two lines each with a capacity of 40 tonnes of SMW.

Receiving and intake bunkers will have to be built, as well as buildings for processing solids, pressing cardboard and paper, storing recycled materials and pressing plastic, grinding fines, two transfer towers and a building for storing the fuel produced from waste.

The process will involve the following stages:

- reception and separation of bulky waste,

- opening of bags and addition of lime,

- drying of coarse waste,

- recycling and separation of metals,

- grinding coarse and fine waste,

- separating the inert materials from coarse and fine waste,

- storage of fuel produced from waste;

(d) cogeneration plant

Both the coarse and fine fractions of the SMW will be dried using energy from the exhaust from either gas engines or gas turbines.

The facility itself will generate electricity and utilise exhaust heat for drying the SMW, using either four gas engines or a 22 MW gas turbine.

The energy capacity would be 21,6 MWe using gas engines and 22 MWe using the gas turbine.

The engines and their alternators will be housed in a covered building of 1000 m2 split into three areas: engine area, lubrication area and maintenance area, control room and electrics. A 3,2-tonne travelling crane bridge will be available for maintenance work;

(e) thermoelectric plant

The thermoelectric plant is designed to burn the waste-derived fuel produced by the recycling plant described at (c) above. There will be two independent incinerators, consisting of a furnace boiler and gas scrubbing system. The steam produced by the two incinerators will feed a single turbogenerator with a production capacity of 49 MWe.

After carrying out major comparative technical studies with other technologies, including systems using grates, bubbling and rotary fluidised beds, the circulating fluidised bed system was chosen.

Using this technology, the maximum permitted emissions can be adjusted using different gas scrubbing techniques.

The plant will be designed on the basis of the model supplied by Kvaerner, which uses fluidised circulating bed technology with certain variations in design and gas scrubbing techniques based on experience in this field, all of which comply with the combustion and emission standards.

The buildings needed to house the plant are: boiler houses, a turbine bay, a pump house, an office building with amenities, storerooms, workshops for access control, pump control and water treatment.

A continuous emissions analysis system must be set up to monitor the incineration process and ensure compliance with the following Directives:

- Directive 84/360/EEC on the combating of air pollution from industrial plants,

- 85/203/EEC on air quality standards for nitrogen dioxide,

- 80/779/EEC on air quality limit values and guide values for sulphur dioxide and suspended particulates,

- 88/609/EEC on the limitation of emissions of certain pollutants into the air from large combustion plants,

- 89/369/EEC on the prevention of air pollution from new municipal waste incineration plants,

- 93/76/EC to limit carbon dioxide emissions by improving energy efficiency.

The results of the emissions analysis will be made available to the public on noticeboards in the management centre or by any other appropriate medium.

In particular, suitable catalysts for dioxins and furans will have to be built into the facilities. Dioxin and furan levels must be analysed each month to ensure that the catalytic process is operating properly.

The results of the analysis must be made available to the public.

6. Objectives

6.1. General aims

To remedy the defective and deficient MSW treatment situation in Galicia by setting up an array of complex facilities for MSW management that will contribute to protecting public health, environmental quality and more efficient use of waste.

The programme to minimise, re-use, selectively collect and recycle SMW will supplement the aims of this project to recover the different types of recoverable waste at source, before it reaches the environmental complex at Cerceda, in line with the Community Directives.

This general aim will be achieved by pursuing the following secondary objectives:

- to optimise the transportation to treatment facilities of SMW which has not been selectively collected,

- to centralise the sorting of waste and the elimination of residual waste at a single processing point, thereby achieving economies of scale,

- to make maximum use of SMW by sorting and recycling,

- to make maximum use of SMW which can be neither recycled nor reused by producing electricity from their incineration.

6.2. Specific aims

% of recycling for each material under Galicia's SMW plan

SORTING

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

The economic rate of return is 31,59 % for a working life of 28 years.

The costs include the investments and operating and maintenance costs.

The benefits include:

- revenue from the sale of products and by-products (paper, glass, energy, etc.),

- savings in waste management costs,

- savings in raw materials, natural resources and energy thanks to the recycling options,

- savings in the cost of managing the pollution of soil and water by leaching from tips,

- recovery of soil or other alternative uses after sealing tips,

- energy savings by cogeneration,

- savings in fuel raw materials by using SMW,

- savings in environmental costs thanks to lower emission rates.

Other intangible social benefits are more difficult to quantify:

- reducing environmental risks and polluting processes,

- improving public health and safety,

- preserving forestry resources (14 trees are saved for every tonne of paper recycled),

- total elimination of methane emission from tips,

- promotion of energy saving,

- promotion of sustainable socio-economic development projects by correcting historical environmental defects,

- improved quality of life,

- raising awareness of the public and enlisting their cooperation in recycling,

- reducing uncontrolled tipping, thereby improving the environment and countryside,

- creating jobs and promoting employment.

9. Environmental impact analysis

The project contributes to the following environmental objectives of the Community's fifth action programme:

- preserving, protecting and improving the quality of the environment,

- protecting human health,

- guaranteeing rational utilisation of natural resources.

Any SMW that can be neither reused nor recycled because it was not sorted at source can still enter the recycling circuit because it will be sorted at destination at the purpose-built plant. The remaining SMW that can currently be neither reused nor recycled will be used to produce waste-derived fuel which will be converted into electricity in modern, purpose-built facilities, all of which must meet the most stringent environmental standards. This will help preserve natural resources and conserve, protect and improve the quality of the environment.

This project will contribute to a general improvement in Galicia's environment in key areas such as landscape, groundwater and air pollution, by considerably reducing the production of dioxins, methane, etc., produced in the countless cases of spontaneous combustion in tips. The project complies with Directive 89/369/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/048

1. Title

Restoration of natural waterways, separation of rainwater and individual operations on the Vigo waste-water disposal system

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Consellería de Política Territorial,

Obras Públicas y Vivienda

3.2. Address: Edificios Administrativos de San Caetano

4. Location

4.1. Member State: Spain

4.2. Region: Galicia

5. Description

This project is actually a group of projects involving the measures needed to complete the waste-water disposal system of a large area of the municipality of Vigo. The treatment of waste water by the treatment plant will be improved by the separation of rainwater and sewage, which will prevent overloading and rationalise the operation of the treatment facilities.

Project 1: Recovery of water used to wash the filters of the drinking-water treatment plant

The water used to wash the sand filters at the Casal drinking-water treatment plant are currently discharged without any treatment directly into the waste-water disposal network.

The optimal solution proposed is to construct a drying unit comprising filter presses and the necessary equipment for the storage and batching of reagents, to be situated in a separate building at the drinking-water treatment plant.

The proposed operation will prevent the pollution load from reaching the waste-water treatment plant, the hydraulic operation of the collector sewers and enable the washing water to be recovered by returning it to the head of the plant, to be mixed with raw water for subsequent treatment.

Project 2: Rainwater by-pass at the Plaza de América

The Plaza América is a critical location within the town of Vigo, where a number of roads converge. An underpass with inadequate storm drains causes rainwater to flow into the general sewage system. Once the overload point is reached, serious floods require the Plaza to be closed to traffic, causing inconvenience to inhabitants.

It is proposed to lay an 800-mm diameter collector sewer over 950 m specifically for rainwater, which can then be discharged directly into the harbour basin in the vicinity of Bouzas.

Project 3: Individual measures to improve the Vigo waste-water disposal system

The waste-water disposal infrastructure in urban Vigo suffers from a number of serious shortfalls due to its age; heavy traffic density is causing ruptures, leaks, pollution of the subsoil, etc.

The proposed measures involve replacing sections of collectors in bad condition in certain parts of the town. It is proposed to install 14500 m of 400-mm diameter collectors, 2500 m of 500-mm diameter collectors and 1500 m of 800-mm diameter collectors in various streets in the old part of town, where the sewage system is in the poorest condition.

Project 4: Waste-water disposal for the Coia estate and the Balaidos-La Florida area

The area affected by the measure contains many homes and is among the fastest growing parts of the city. It therefore needs to be equipped with adequate waste-water disposal facilities.

It is planned to install a system of collector sewers made up of 4900 m of collectors of less than 600 mm in diameter, 2000 m of between 600 and 900 mm in diameter and 3225 of ovoid collectors of 1200/1800 mm.

Project 5: Restoration of natural waterways and separation of rainwater

A large proportion of the population of the municipality of Vigo is housed in single-family dwellings in a rural setting. There has been a drastic reduction in the flow of the various streams which run into the River Lagares because rainwater running off from roofs and gardens now flows into the sewer system.

The size of Vigo's fringe belt means that its natural waterways are of great environmental and landscape value. The proposed measure will restore the watercourses to their natural state by installing spillways for rainwater, thereby regulating the flow in the sewer system and preventing overloading of the pumping and treatment facilities. Interceptor sewers will also be installed according to the flows and distribution of the population in the catchment areas. The measures are summarised below:

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Project 6: Improvement of the collectors on the banks of the Lagares river, improvement of the banks and individual rainwater control measures

The lie of the land around Vigo is such that the general waste-water disposal system has only one natural outlet, the River Lagares.

The proposed measure involves improving certain sections of the banks of the Lagares which are in very poor condition and solving the problem caused by rainwater running into the general sewer system by installing a number of specially designed spillways to allow rainwater to be discharged directly into the river. This will preserve the hydraulic capacity of the river-bank collectors so that they can adequately convey waste water to the Lagares treatment plant. This will prevent the plant from being overloaded, drastically cutting maintenance costs and restoring to the river its natural function of receiving rain water and providing leisure opportunities for the population.

6. Objectives

The main objective of this group of projects is to improve the waste-water disposal system of the town of Vigo and to restore a number of natural waterways which are currently in poor condition.

The measure will make it possible to rationalise the operation of the treatment plant and reduce the maintenance costs while substantially improving the regularity of operation and the quality of the discharge from the outfall.

A further objective is to restore a number of very degraded sites which, because of their urban location, are ideal for leisure use by the population.

The ultimate aim is to improve a number of degraded areas with minimum cost and maximum social utility at the same time as laying the foundations for complying with Directive 91/271/EEC, which Member States must comply with by 2000.

7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- working life of the investment: 20 years,

- operating and maintenance costs amount to 2,5 % of the initial investment,

- assessment of environmental benefits: improved water quality, public health, improvement to the river banks,

- evaluation of the social benefits: reclamation of leisure areas;

(b) - the internal rate of return (IRR) is 9 %,

- the total net present value of the projects is ESP 1517,7 million (1997) (discount rate 6 %);

(c) job creation:

- in the construction phase:

direct: 130;

indirect: 215 (21 months)

- in the operational phase:

direct: 15;

indirect: 40.

9. Environmental impact analysis

(a) These projects aim to achieve the following objectives for Community environmental measures laid down in Article 130r of the Treaty:

- preserving, protecting and improving the quality of the environment,

- protecting human health,

- guaranteeing rational utilisation of natural resources.

(b) The group of projects is intended to achieve the following objectives laid down in the fifth action programme:

- sustainable management of natural resources by reducing pollution of water resources,

- appropriate management of water resources,

- improved quality of the urban environment,

- better public health and safety.

(c) The aim of the project is to control and collect urban waste water in accordance with Directive 91/271/EEC concerning urban waste-water treatment and the legislation transposing that Directive into national law. The proposed measures will restore a river bank currently in very poor condition, constructing a waterside promenade and stopping direct discharge of waste water into the river, thereby reducing the pollution load of discharge and substantially improving the quality of the water.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/049

1. Title

Waste-water disposal and treatment for municipalities in the Balearic Islands

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Conselleria del Medio Ambiente, ordenación del territorio y litoral

3.2. Address: Avda. Gabriel Alomar y Villalonga, 33 Palma de Mallorca

4. Location

4.1. Member State: Spain

4.2. Region: Balearic Islands

5. Description

Project 1: Campos waste-water treatment plant

The design for the waste-water treatment plant to be built at Campos includes the following pretreatment facilities:

- inlet chamber, protective coarse solids removal and lifting facilities for head waters,

- automatic screening for fine solids, with self-cleaning screens and drying press,

- sand and grease removal with sand grader and grease thickener,

- flow meter,

- conventional biological treatment using activated sludge. Two identical tanks will be built for aeration and digestion,

- secondary sedimentation in two identical circular settling basins with scrapers,

- tertiary filtering treatment so that the treated effluent can be re-used for irrigating farmland and a golf course,

- sludge handling, with gravity thickener and dewatering by centrifugation,

- building housing the solids removal and sludge dewatering adjacent to the control room and staff changing rooms and toilets.

Project 2: Santa Maria waste-water treatment plant

The waste-water treatment plant to be built at Santa Maria includes the following facilities:

- automatic solids removal using self-cleaning screens,

- lifting facilities for head waters,

- sand and grease removal,

- flow meter,

- two-stage biological treatment including the following processes: pre-aeration, primary sedimentation, denitrification, aeration, secondary sedimentation, sludge digestion,

- sludge thickening,

- dewatering using a belt filter press,

- filtration of effluent.

The waste-water treatment technique to be used at Santa Maria consists of two-stage biological treatment as described above. The effluent will be filtered before discharge into dry wells, in order to prolong the working life of the wells.

Project 3: Mahón waste-water treatment plant

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The water must be clear and totally free from unpleasant odours,

Sludge: Using the same criterion, sludge will have the following characteristics after handling:

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Project 4: Expansion of Ibiza waste-water treatment plant

The Ibiza waste-water treatment plant uses the following process and operations:

- pretreatment inside a deodorised building, consisting of: intermediate loading chamber, solids removal, waste press, sand and grease removal,

- water treatment inside a deodorised building, consisting of: lifting for physico-chemical treatment in two lines consisting of a flocculation tank, a plate-type sedimentation tank, submerged bacterial bed (four lines), for winter population only, discharge through marine outfall,

- sludge treatment in the same deodorised building, consisting of: sludge thickener, dewatering using a belt filter press, stabilisation using lime, hopper storage.

The best solution for supplementing treatment by the Ibiza waste-water treatment plant would be to build two more filter units, each with a capacity of 2500 m3/day. Together with the four existing units, this will provide peak capacity for15000 m3/day. Thereafter, it is planned to install a further four units to achieve a capacity of 25000 m3/day (100000 population equivalent).

Because the plant is situated inside the city of Ibiza, it is thought necessary to house the facilities inside a deodorised building.

Project 5: Sa Pobla composting plant

The composting plant will be made up of:

(a) reception area:

- 16 × 3 m weighbridge (60 tonnes) for checking the different types of vehicles used to transport materials and compost,

- system of conveyor belts for moving materials (capacity: 50 m3/h),

- sludge blender (capacity: 50 m3/h),

- sludge storage silos (capacity: 85 m3),

- covered storage of wood and cellulose (capacity: 250 m3);

(b) composting system made up of:

- an initial phase of accelerated composting under cover in 10 dynamic aerated channels, fitted with the necessary turning and transfer equipment and controlled blowers regulated on the basis of the average temperature in the mass to be composted;

(c) handling inside the plant will be done by two bucket loaders. The compost discharged from the channels will be conveyed to the digestion section where it will be kept in 20 × 16 m piles = 320 m2;

(d) refining:

the refining system will be fed by a bucket loader and includes:

- a 25-m3 loading hopper,

- a twin-screw extractor that macerates any clods that may have formed during the digestion process,

- 2 self-cleaning turning screens with mesh sizes of 25 mm and 10 mm respectively,

- system of conveyor belts;

(e) air suction and deodorisation:

the accelerated composting section will be located inside a closed building and the dead air will be pumped out and deodorised.

Project 6: Waste-water treatment plant with tertiary treatment at Ciudadela Sur

(a) 50000 m3 maturation lagoons occupying a total area of 1,8 hectares. The lagoons will have an average depth of 3 m and will be sealed with 1,2-mm-thick synthetic sheeting and protected inside with geotextile felt.

(b) Pressure pumping: a 200-m3pumping tank will be built with working area of 7-m width and 4-m depth, equipped with three pumps.

Project 7: Waste-water treatment plant with tertiary treatment at Soller

(a) A 2000-m3 basin is planned prior to treatment. It will be built by excavating and creating the banks using the excavated spoil, followed by sealing.

(b) The project involves the installation of tertiary treatment involving the following process:

- screening with static screens with openings of 0,5 mm,

- flocculation using iron chloride, with storage in tanks for 10 days,

- sand filtration using a set of filters,

- chlorination, including prechlorination at 6 ppm and postchlorination at 1 ppm, including tower absorption.

A control building is also planned to house a control centre, office, cloakrooms, laboratory, workshop, etc.

(c) 12000-m3 storage lagoon with an average depth of 5 m, assuming a retention time of three days.

(d) 2100 m and 1250 m of pipeline.

Construction of two irrigation networks each capable of supplying 2000 m3/day and consisting of a main segment of pipeline 732 m long and six secondary branches 632 m long.

Project 8: Waste-water treatment plant with tertiary treatment at Cala Ratjada

(a) Advanced tertiary treatment using flocculation and filtration:

- screening with static screens with openings of 0,5 mm,

- flocculation using iron chloride, with storage in tanks for 10 days,

- sand filtration using a set of filters,

- chlorination, including prechlorination at 6 ppm and postchlorination at 1 ppm, including tower absorption.

A control building is also planned to house a control centre, office, cloakrooms, laboratory, workshop, etc.

These facilities will be able to treat 6750 m3/day, corresponding to the design flow of the treatment plant once its expansion has been completed.

(b) Pump station: after flocculation, the water will be pumped to the irrigation area via a 300-m3 pump station.

(c) Pressure conduits 4350 m long.

Project 9: Waste-water treatment plant with tertiary treatment at Cala d'Or

This project involves irrigation systems for green areas and public parks:

(a) tertiary treatment using flocculation and filtration.

The project involves the installation of tertiary treatment involving the following process:

- screening with static screens with openings of 0,5 mm,

- flocculation using iron chloride, with storage in tanks for 10 days,

- sand filtration using a set of filters,

- chlorination, including prechlorination at 6 ppm and postchlorination at 1 ppm, including tower absorption;

(b) a storage lagoon with a total capacity of 4200 m3 and an average depth of 5 m will be built for the water treated by flocculation and filtration;

(c) in addition, the system will comprise 200 m of pipelines for irrigation in urban areas.

6. Objectives

The general strategy for all these projects is to reduce levels of BOD, suspended solids, etc. in treated water in line with the specifications set out in the European Directive, to provide treatment including nutrient elimination and to reduce phosphorous levels in accordance with the Directive by means of physical-chemical treatment and final filtering:

(1) marine discharge may not cause any problems for tourism nor ecological imbalances,

(2) any discharge of effluent by seepage into the subsoil must ensure that ground waters can be re-used,

(3) water is to be re-used for irrigation, particularly of public parks.

Any excess sewage sludge generated will be used in agriculture, not sent to a tip.

7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- useful life of the investment: 20 years,

- operating and maintenance costs,

- operating and maintenance costs will be covered by a treatment tax,

- evaluation of the environmental benefits: improved water quality, public health,

- evaluation of the financial benefits: re-use of treated water will generate revenue that can be used to recover the initial investment.

(b) - The internal rate of return (IRR) varies from 5,13 % to 23,73 %,

- the total net present value of the projects is ESP 1691 million (1997) (discount rate 5 %).

(c) Job creation:

- in the construction phase:

direct: 180;

indirect: 250 (1,5 years),

- in the operational phase:

direct: 50;

indirect: 30.

9. Environmental impact analysis

(a) These projects aim to achieve the following objectives for Community environmental measures laid down in Article 130r of the Treaty:

- preserving, protecting and improving the quality of the environment,

- protecting human health,

- guaranteeing rational utilisation of natural resources.

(b) The group of projects is intended to achieve the following objectives laid down in the fifth action programme:

- sustainable management of natural resources by reducing pollution of water resources,

- appropriate management of water resources,

- improved quality of the urban environment,

- better public health and safety.

(c) The aim of the project is to control and collect urban waste water in accordance with Directive 91/271/EEC concerning urban waste-water treatment. It complies with the objectives and guidelines laid down in the national plan for treatment of waste water, and in the legislation transposing Directive 91/271/EEC into national law.

The projects are also included in the category provided for in Annex II of Directive 85/337/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/051

1. Title

Waste-water treatment in Castile-La Mancha

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: J.C.C.M. - Consejeria de Obras Públicas - Dirección General de Carreteras, Obras Hidraúlicas y Transportes

3.2. Address: P. Cristo de la Vega s/n E - 45071 Toledo

4. Location

4.1. Member State: Spain

4.2. Region: Castile-La Mancha

5. Description

Project 1: Waste-water treatment plant in La Puebla de Montalbán

The treatment plant will use an activated sludge process with extended aeration and nitrogen and phosphorous removal in an carousel-type biological reactor. The facilities will comprise:

(a) Intake

- tank for coarse materials,

- pumping unit, spillway, inlet chamber from pumping unit,

- solids removal (in two separate channels) with self-cleaning filters,

- sand and grease removal with aeration.

(b) Biological treatment

- channel/carousel-type reactor,

- secondary settling basin (20 m in diameter) with scrapers moving sludge into a central pit,

- sludge: pipelines from the settling basin to the pumping unit, sludge recirculated by pumping to the oxidation channels; excess sludge pumped to the gravity thickener. Excess activated sludge is thickened by gravity. Sludge is dewatered by centrifugation.

(c) Other facilities

- industrial and controls building,

- pre-treatment building.

(d) In the operational phase

- laboratory with equipment (pH-meter, meter for dissolved O2, equipment for measuring solids),

- fire-protection and general security facilities, electric and manual,

- machine room and tool shed,

- technical assistance.

Project 2: Waste-water treatment plant for Illescas, Numancia de la Sagra and Yuncos

This project involves building collectors and a treatment plant using extended aeration and nutrient elimination for Illescas, Numancia de la Sagra and Yuncos.

(a) Waste-water collection: a single system will serve the three settlements. The population equivalent to be serviced by the system is currently 15600 in the winter and 27000 in the summer. That number is expected to increase to 24400 in the winter and 37200 in the summer.

The collectors from the three settlements will combine in a single asbestos cement collector.

The general collector sewer will be built of asbestos cement rather than concrete to ensure better watertightness and porosity. This will reduce both losses and the amount of water coming in from outside the pipeline.

(b) Water treatment: the sewage is mainly urban, with a small quantity from the industrial estates in Illescas.

Treatment will be by activated sludge, with extended aeration in carousel-type oxidation channels, with nutrient elimination, elimination of phosphorous by chemical precipitation, and nitrification.

The plant will have the capacity to pre-treat five times the average flow on the basis of the present situation.

The plant will have the probes and recording instruments needed to ensure full automation and monitoring of the plant and its output. It will also have a laboratory for conducting the minimal necessary tests.

(c) Sludge: after dewatering by batching of polyelectrolytes and centrifugation, sludge will be conveyed by vice-press to a container and from there to a tip or used for soil conditioning, if analysis shows this to be appropriate.

Project 3: Las Pedroñeras, Las Mesas, Alberca del Záncara and El Pedernoso

Construction of a waste-water treatment plant in each of the above four municipalities. Each plant will use the same treatment system:

(a) Water treatment: single biological treatment line throughout the year, which can be expanded to two lines during the dry summer season. Treatment will consist of:

(1) pre-treatment: intake, spillway and tank for coarse materials; screening of fine solids; sand and grease removal; separations of oils and grease; sand removal; flow meter for raw sewage.

(2) biological treatment: biological reactor (one line in winter, two in summer); secondary settling basin; outlet for treated water.

(b) Sludge handling: recirculation of activated sludge and pumping off of excess sludge; gravity thickening of stabilised sludge; dewatering; storage of dewatered sludge; disposal in a tip.

Project 4: Waste-water treatment plant at Mora

This project involves constructing adequate treatment facilities in the municipality of Mora (Toledo), with installation of a collector sewer over 2 km to convey waste water from the current point of discharge to the site where the treatment plant is to be built.

Project 5: Waste-water treatment plant in Socuéllamos

This project involves extending the collector-sewer to the treatment plant and building the plant, which will use a conventional activated sludge system.

(a) Water treatment will consist of:

- a pumping unit for raw sewage,

- screening with openings of 3 mm,

- sand and grease removal,

- Parshall-type ultrasound flow meter,

- circular primary settling basin 18 m in diameter,

- biological reactor with a capacity of 2048 m3 and phosphorous and nitrogen elimination.

Phosphorous will be eliminated by adding iron chloride; nitrogen by the creation of anoxic areas and recirculation by wall pumps,

- circular secondary settling tank 22 m in diameter,

- sterilisation.

(b) Sludge handling will consist of:

- recirculation of sludge,

- excess sludge will be pumped to the primary settling basin,

- mixed sludge will be removed from the primary settling basin for aerobic digestion,

- aerobic digestion will take place in a 1765 m3 aeration tank with fine bubble aeration,

- sludge will be pumped to the thickener,

- circular gravity thickener 8 m in diameter,

- sludge will be pumped to the dewatering facility,

- thickened sludge will be dewatered by centrifugation,

- the sludge wil be stored in silos.

Project 6: Villanueva de los Infantes, Alcubillas and Cózar

Construction of a waste-water treatment plant in each of the above three municipalities. Each plant will use the same treatment system:

(a) Water treatment: single biological treatment line throughout the year, which can be expanded to two lines during the dry summer season. Treatment will consist of:

(1) pre-treatment: intake, spillway and tank for coarse materials, screening of fine solids; sand and grease removal; separation of oil and grease; sand removal; flow meter for raw sewage,

(2) biological treatment: biological reactor (one line in winter, two in summer); secondary settling basin; outlet for treated water.

(b) Sludge handling:

- re-circulation of activated sludge and pumping off of excess sludge,

- gravity thickening of stabilised sludge,

- dewatering,

- storage of dewatered sludge,

- disposal in a tip.

Project 7: Ayna, Bogarra, Lietor and Riopar

Construction of a waste-water treatment plant in each of the above four municipalities. Each plant will use the same treatment system:

(a) Water treatment: single biological treatment line throughout the year, which can be expanded to two lines during the dry summer season. Treatment will consist of:

(1) pre-treatment: intake, spillway and tank for coarse materials, screening of fine solids; sand and grease removal; separation of oil and grease; sand removal; flow meter for raw sewage;

(2) biological treatment: biological reactor (one line in winter, two in summer); secondary settling basin; outlet for treated water.

(b) Sludge handling:

- re-circulation of activated sludge and pumping off of excess sludge,

- gravity thickening of stabilised sludge,

- dewatering,

- storage of dewatered sludge.

Project 8: Waste-water treatment plant in Ocaña

The chief features of the treatment plant are:

(a) Water treatment:

- pre-treatment,

- biological treatment with extended aeration, entailing: an anoxic zone, a biological reactor, secondary sedimentation and recirculation of sludge.

(b) Sludge handling:

- thickening,

- chemical treatment,

- dewatering.

The project involves extending the waste-water collector by 4 km and building a waste-water treatment in the municipality of Ocaña (Toledo) to service a population of 12000 inhabitants equivalent.

Providing the municipality with secondary treatment will prevent the discharge of waste water from damaging water quality.

Project 9: Waste-water treatment plant in La Roda

Construction of a waste-water treatment plant with the following main features:

(a) Water treatment:

- intake chamber with spillway for excess flow and general bypass,

- tank for coarse materials,

- automating pumping to lift the waste water,

- filtering of fine solids through two rotating screens with a mesh size of 1,5 mm; pressing of the eliminated waste,

- aerated sand and grease removal,

- measuring and recording of flow,

- biological treatment using activated sludge in extended aeration, with nitrification/denitrification,

- secondary sedimentation,

- desinfection of the final effluent using sodium hypochlorite.

(b) Sludge handling:

- recirculation of activated sludge accumulated at the entrance to the biological reactor,

- removal of excess activated sludge,

- dewatering of thickened sludge in a centrifuge with a nominal capacity of 3 m3/h after polyelectrolite batching. The dewatered sludge will either be used as agricultural fertiliser or disposed of in a tip.

Project 10: Waste-water treatment plant in Torrijos

Construction of a waste-water treatment plant in Torrijos and a collector sewer leading to the plant. The process used will be activated sludge with full oxidation and elimination of nutrients in a carousel-type biological reactor. The facilities will comprise:

(a) Intake:

- tank for coarse materials with a screen at the head of the pumping unit,

- pumping unit with submerged pumps (2 + 1R): safety spillway, inlet chamber from pumping unit. Chamber with distributor to screening channels. Solids removal (in two separate channels),

- sand and grease removal with aeration.

(b) Biological treatment:

- channel/carousel-type reactor with recirculation of activated sludge from the secondary settling basin:

- 6300 m3 reactor;

- fine bubble aeration (700 units);

- probes for measuring dissolved O2 for regulating the blowers;

- rotor blades to keep the solids suspended in the mixture, with current accelerators (four per basin),

- secondary settling basin 20 m in diameter, with recirculation of activated sludge, removal of excess sludge and sedimentation of suspended particulates. The settling basin will be equipped with a perimeter channel with a screen for collecting clear water and scrapers for moving sludge into a central pit.

(c) Sludge:

Activated sludge will be piped from the settling basin to the pump unit. From there it will be pumped to the oxidation channels; excess sludge will be pumped to the gravity thickener.

Recirculation capacity will vary according to the need for activated sludge in the reactor, with a reserve pump available to that end (2 + 1R).

- Sludge thickening

Excess activated sludge will be thickened by gravity in a circular basin equipped with rotating scrapers to drag the concentrated sludge to a central pit; the supernatant fraction will be returned to the head of the plant. The thickener will be covered,

- Sludge dewatering

Once thickened and homogenised, the sludge will be dewatered in a centrifuge fed by screw pumps. Polyelectrolyte batching will be automatic; piston pumps with a double membrane (1 + 1R).

(d) Other facilities:

- industrial and controls building,

- pre-treatment building.

6. Objectives

To provide the municipalities in question with waste-water treatment plants to bring them into compliance with Directive 91/271/EEC.

The plants will service some 160000 inhabitants equivalent, producing a daily volume of around 30000 m3 of treated water.

To protect the environment, particularly surface and groundwater.

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- working life of the investment: 20 years,

- operating and maintenance costs,

- charges for discharge and sewerage, and water rates will cover the operating and maintenance costs of the treatment plants,

- assessment of the environmental benefit: water quality.

(b) Number of jobs created during the implementation period:

- direct: 300,

- indirect: 230.

(c) Internal rate of return: 8 %; net present value (discount rate: 4 %): ESP 2329151.

9. Environmental impact analysis

By enabling the rational utilisation of natural resources, the group of projects will help satisfy the drinking-water requirements and protect the health of the populations concerned. It will permit the social and economic development of the area while protecting the environment.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No. 97/11/61/052

1. Title

Management of solid municipal waste in Castile-La Mancha

2. Body making the application

2.1. Name: Dirección General de Planificación

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Junta de Comunidades de Castilla-La Mancha Consejería de Agricultura y Medio Ambiente Dirección General del Agua

3.2. Address: C/Pintor Matías Moreno, 4 E - 45071 Toledo

4. Location

4.1. Member State: Spain

4.2. Region: Castile-La Mancha

5. Description

5.1. Selective collection facilities in the association of municipalities of Consermancha

This project takes the form of a plan containing measures to eliminate and control open dumps by providing the municipalities in the Consermancha association with containers for the collection of recoverable materials and by building 26 centres to which the public can bring their domestic waste (clean points).

200 containers will be supplied for glass, 200 for paper, 200 for plastics and 500 for batteries. In addition, two collection vehicles will be purchased.

Each collection centre will comprise a loading and unloading platform large enough to ensure access by and manoeuvring of the vehicles. Each centre will also have five 38 m3 containers, plus two containers for oil, five for batteries and six for pharmaceutical products.

The following municipalities are members of the Consermancha association: Alcázar de San Juan, Arenas de San Juan, Argamasilla de Alba, Campo de Criptana, Herencia, Las Labores, Miguel Esteban, Mota del Cuervo, Pedro Muñoz, Puebla de Almoradiel, Puerto Lápice, Quero, Quintanar de la Orden, Santa María de los Llanos, Socuéllamos, El Toboso, Tomelloso, Villacañas, Villafranca de los Caballeros, Villarta de San Juan, Arenales de San Gregorio, Las Pedanías de Alameda de Cervera and Cinco Casas.

5.2. Plant for the sorting and treatment of solid municipal waste at Hellín

The planned plant will consist of a section for sorting inorganic waste and a section for composting organic waste. The main stages of preparing, classing and treating waste are as follows.

Mechanical preparation of SMW will comprise initial sorting on a conveyor belt, with several manual sorting posts where bulky objects and unbroken glass vessels will be separated out. Next the waste will be mechanically sorted in cylindrical mesh drums with mesh sizes designed for the different types of waste and a bag-opening device. Waste too large to pass through the mesh (around 50 % by weight) mostly consists of inert waste (plastic, paper, cardboard, glass, metal, etc.). This fraction will be taken by conveyor belt for further manual sorting into the different types of inert waste, after which it will be stored and compacted into bales or, in the case of glass, taken to a storehouse.

The fragment of the waste that passes through the mesh of the mechanical sorting drum will be composted. Bucket loaders will be used to convey the waste to trapezoidal columns for aerobic fermentation.

The organic waste will be turned regularly and/or injected with air to ensure the presence of oxygen.

Fermentation will take place in an open enclosure (a slow process taking six to ten weeks) as this process requires a smaller initial investment, the weather in the area is suitable and this process produces less leachates and disagreeable odours.

The compost yield, calculated for an organic fraction of 48 %, will be 17 % of all the SMW entering the treatment plants. Moisture losses will amount to 23 %, and some 8 % of the waste will be rejected and disposed of in a dump together with the materials rejected during the sorting of inorganic waste.

The compost produced will be offered to farms in the area at a very competitive price.

The project involves the following infrastructure:

- buildings:

- a bay with metal roof and supports,

- a refining building, with an electrically welded metal frame structure,

- ancillary facilities (a bay acting as workshop-storehouse, offices and building for staff, enclosure, hedge and gardens),

- roads and surfacing,

- water supply,

- electricity supply,

- sanitation,

- fire protection.

6. Objectives

General aims

To implement the Regional Waste-Disposal Plan of Castile-La Mancha, which comprises three main aspects:

(1) prevention or reduction of waste at source;

(2) re-use, by means of policies to promote re-use of packaging,

(3) recycling and re-use of waste materials that can be returned to the production line.

The aim is to manage waste and to prevent and reduce the environmental impact of discarded packaging.

Specific aims

Hellín project: to recover, by composting or recycling, 50 % of waste produced by a population equivalent of 55000, i.e. 20000 tonnes/year.

Consermancha project: to reduce the amount of waste dumped in tips, thereby maximising the average lifespan of tips.

7. Work schedule

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8. Assessment of costs and socio-economic advantages

A cost-benefit analysis has been carried out for a period of 20 years, based on the following factors:

- the deficit factors (financial costs) include the initial investments and maintenance and operating costs once the projects are operational,

- the asset factors (financial benefits) include:

- revenue from the sale of products and by-products (compost, paper, glass, etc.),

- the benefits of reduced pollution,

- revenue from charges to users of the facilities.

Other intangible social benefits are more difficult to quantify:

- reducing environmental risks and polluting processes,

- improving the public health and safety of a population of 206426,

- raising awareness of the public and enlisting their cooperation in recycling.

9. Environmental impact analysis

(a) SMW management projects fulfil the objectives set out in Article 130r of the EC Treaty concerning the preservation, protection and improvement of the environment and the production of human health.

These projects comply directly with Community environmental policy, as provided for in the Community Directives on the environment, particularly Directive 75/442/EEC, as amended by 91/156/EEC, on solid municipal waste, and the fifth Community policy and action programme for the environment and for sustained development, which aims at reducing the pollution of water resources, managing waste, reducing the deterioration of the urban environment and degradation of natural resources and biodiversity.

This group of projects also complies with the objectives of the Cohesion Fund and the guidelines laid down in the Green Paper on the urban environment.

The construction of waste treatment plants, compost plants and centres to which the public can bring their domestic waste for sorting are preventive measures implemented under integrated plans for the collection and treatment of waste, and allay the harmful effects of uncontrolled tipping of solid municipal waste on the natural and urban environment.

(b) The competent authorities must arrange for any toxic and hazardous waste to be sent as quickly as possible to plants equipped to treat it.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/053

1. Title

Supply 97 - water supply to the Guadiana catchment area from the Zujar dam

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas (Ministerio de Medio Ambiente)

3.2. Address: Paseo de la Castellana, 67 E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Andalusia

5. Description

5.1. Guadiana catchment area

5.1.1. Water supply in the Guadiana catchment area from the Zujar dam

The project is for the supply of water to the population and includes:

- abstraction of water from the Zujar dam,

- conveying abstracted water in pumped conduits to intake points,

- supplying water to various communes and communities; construction of various buildings attached to conduits to house machinery and plant required to operate supply network,

- ancillary work to facilitate operation of system.

Abstraction from Zujar dam

As indicated above, in addition to abstraction of water, the project includes supply to the community of La Serena and construction of a section of conduit to the first junction with the Zujar Canal.

Collection in the Zujar dam

An intake tower 35,50 m high built against the dam.

The tower will have three rectangular intake apertures measuring 2,0 m × 2,5 m located on the sides at 284,6 m, 294,3 m and 304 m respectively.

The apertures may be closed using bulkhead gates.

The diameter of stainless steel piping encased in reinforced concrete embedded in the dam will be 1200 mm.

Intake for La Serena

A building to house a pumping system consisting of a well over which two vertical pumps are placed to supply the community when the level of water in the dam is too low for direct supply by gravity.

Intake conduit

Section 172,162 m long running from the exit of the intake for the community of La Serena to the junction with the Zujar Canal.

Conduit

The length of piping will be 42,053 m, which should be extended by 163,82 m to connect with the intake.

Reinforced concrete piping with sheet-metal casing has been chosen on account of its advantages in terms of reliability and durability.

Intake

The conduit will serve:

- La Serena,

- Campanario,

- La Coronada, Magacela and La Haba,

- Villanueva de La Serena,

- Vegas Altas,

- Transa intake,

- Don Benito,

- forecast supply for P.I. de Don Benito.

The work for La Serena is described above; as indicated in point 4, water is supplied from the Zujar dam scheme.

Intake for Campanario

A building located above the general conduit, after the Guadalefra junction to house the machinery required to regulate and monitor the flow rate.

Intake for La Coronada, Magacela and La Haba

A building located above the general conduit, close to the existing water-treatment plant serving these locations, to house the machinery required to regulate and monitor the flow rate.

Intake for Villanueva de La Serena, Transa and Vegas Altas

Building located above the general conduit in a park next to the water-treatment plant for Villanueva de La Serena to house the machinery required to regulate and monitor the rate of flow.

Intake for Don Benito and forecast requirements by P.I. de Don Benito

Comprising:

- A pump station, consisting of a building to house two pumps with horizontally split casings.

- A pressure conduit in cast iron 2761 m long with a diameter of 500 mm to link the pumping station with the Don Benito waste water treatment plant.

Related work

Additional work to facilitate operation of the supply systems.

A distinction needs to be made between supply mechanisms and the monitoring system:

- control valves,

- flow control valves,

- air vents and intake valves,

- spilloffs,

- dismantling devices,

- meters,

- monitors.

The system will consist of a network of remote stations located at control points, using microcomputers and linked to a communications network, for transmission of data and instructions from a central station.

6. Objectives

To supply drinking water to a population currently suffering the effects of drought.

To build a network of pipelines, pumping stations and other related facilities to supply water and contribute to the sustainable development of the area.

To improve urban water supply.

To improve water quality.

To improve the health and quality of life of the population.

To increase the availability of water by economising and coordinating its use.

To improve the management and use of water.

The specific objectives are shown in the following table:

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

The cost-benefit analysis was carried out on the following basis:

- investment and operating costs,

- guaranteed water supplies,

- improved water quality,

- reduction in over-exploitation of aquifers.

The project's internal rate of return is 63 %, indicating good profitability.

9. Environmental impact analysis

The project will significantly improve infrastructures in the areas concerned and will, in particular:

- improve the well-being of the population, which is subject to water restrictions,

- overcome the limits and restrictions imposed by the shortage of water on the growth and development of various sectors of the economy.

The individual measures making up this group of projects fit in with the preliminary projects in the water resource plan for the catchment area and in the national plan; this ensures consistency with the national strategy on water resources.

They will also help improve the living conditions of the population, which suffers from water shortages, and help lay the foundations for the sustainable development of the area in accordance with the guidelines set out in the fifth Community programme of policy and action in relation to the environment and sustainable development.

The project complies with the requirements for the quality of surface water used for the production of drinking water laid down in Council Directive 75/440/EEC and with the guidelines in the following Community Directives concerning the supply of water for human consumption, namely Directives 85/337/EEC, 80/778/EEC, 75/440/EEC and 79/869/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/053 a

1. Title

Supply 97 - water supply to the Tagus catchment area

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas (Ministerio de Medio Ambiente)

3.2. Address: Paseo de la Castellana, 67 E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Madrid

5. Description

Tagus catchment area

5.1. Expansion of supply to San Fernando de Henares and other locations

Expansion of the existing system with a new pipeline from the Seventh Madrid reservoir (Gran San Blas) to convey water to the areas of Torrejón de Ardoz, Coslada and San Fernando de Henares.

The pipeline will be designed for a peak flow of 2,5 m3/sec. and an average flow of 1,1 m3/sec. The project consists of three separate segments:

Section 1: from the Seventh Madrid reservoir (Gran San Blas) to Ciudad Pegaso near the O'Donell railway station.

Section 2: from Ciudad Pegaso to Citipac (Coslada). This section includes a connecting branch line to the Torrejón line.

Section 3: from Citipac (Coslada) to Torrejón.

The work will include:

- switching chambers,

- valve shafts,

- drainage shafts,

- boxes for flowmeters.

The project will also include ancillary work such as inspection chambers and manholes, underpasses beneath roads and crossings over streams and talwegs and the valves and special fittings required.

5.2. Improving supply to the southern branch line of the Torrelaguna system: San Agustín de Guadalix, San Sebastian de los Reyes and Alcobendas

Expansion of the existing system with a new pipeline from the Canal Alto to San Agustín de Guadalix, San Sebastian de los Reyes and Alcobendas.

Intake

A lateral expansion chamber 3 m long in the existing Canal Alto, made in situ of reinforced concrete.

Equalising reservoir

This equalising reservoir will have a capacity of 36000 m3.

It will consist of two compartments of equal size made from prefabricated concrete panels, so that the reservoir can be assembled on the available site without increasing its cost. The cover will be fitted on the spot.

Section 1: between the Canal Alto and La Mediana.

Section 2: between La Mediana and Punta Galea (km 31 on the N-I).

The work will also include:

- ancillary work: inspection chambers and shafts, manholes, underpasses beneath roads and crossings over streams and talwegs,

- hydromechanical equipment: control valves, diversion channels, draining points, flow meters, three-way valves and the necessary chambers and shafts,

- remote control and automatic operating systems.

The system will consist of a network of remote stations installed at control points and operated by microprocessor, linked by a communications line, sending information and receiving instructions from the central control point.

6. Objectives

To supply drinking water to a population currently suffering the effects of drought.

To build a network of pipelines, pumping stations and other related facilities to supply water and contribute to sustainable development of the area.

To improve urban water supply.

To improve water quality.

To improve the health and quality of life of the population.

To increase the availability of water by economising and coordinating its use.

To improve the management and use of water.

The specific objectives are shown in the following table.

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

The cost-benefit analysis was carried out on the following basis:

- investment and operating costs,

- guaranteed water supplies,

- improved water quality,

- reduction in over-exploitation of aquifers.

The project's internal rate of return is 63 %, indicating good profitability.

9. Environmental impact analysis

The project will significantly improve infrastructures in the areas concerned and will, in particular:

- improve the well-being of the population which is suffering from water restrictions,

- overcome the limits and restrictions that the shortage of water is placing on the growth and development of various sectors of the economy.

The individual measures making up this group of projects fit in with the preliminary projects in the water ressource plan for the catchment area and in the national plan; this ensures consistency with the national strategy on water resources.

They will also help improve the living conditions of the population, which is suffering from water shortages, and help lay the bases for the sustainable development of the area in accordance with the guidelines set out in the fifth Community programme of policy and action in relation to the environment and sustainable development.

The project complies with the requirements for the quality of surface water used for the production of drinking water laid down in Council Directive 75/440/EEC and with the guidelines in the Community Directives concerning the supply of water for human consumption, namely Directives 85/337/EEC, 80/778/EEC, 75/440/EEC and 79/869/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/057

1. Title

Water supply: desalination plant at Las Palmas Telde

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas y Calidad de las Aguas (Ministerio de Medio Ambiente)

3.2. Address: Paseo de la Castellana, 67 E - 28071 Madrid

4. Location

4.1. Region: Canary Islands

4.2. Municipality: Las Palmas

5. Description

This project concerns the building of a new desalination plant at Las Palmas-Telde and involves:

- replacing the four existing evaporators with other using horizontal tube multiple effect (HTME) technology,

- adapting the existing boilers and turbines to the thermodynamic characteristics required by the new evaporators,

- building pipelines over a length of 4218 m and various pump stations and tanks.

The new equipment will increase daily production capacity from 20000 m3 to 35000 m3.

The desalination process used involves evaporating and collecting untreated water taken from the sea next to the plant.

The product (drinking water) will be sent to existing reservoirs nearby, and from there straight into the distribution network.

6. Objectives

This project complies with the preliminary designs in the catchment area plans and the national hydrological plan.

Its main aims are:

- to supply drinking water (35000 m3/day) to a population of 374662 currently suffering the effects of drought,

- to build infrastructure consisting of 4218 m of pipeline, various pump stations, tanks and other auxiliary plant to guarantee water supplies and permit sustainable development of the city,

- to improve the city's water supply,

- to improve water quality,

- to improve the health and quality of life of the population concerned,

- to increase the availability of water by economising and coordinating its use,

- to improve the management and use of water.

7. Work schedule

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8. Assessment of costs and socio-economic advantages

The cost-benefit analysis was carried out on the following basis:

- investment and operating costs,

- guarantee as to availability and supply of water,

- reduction in over-development of aquifers.

The project's internal rate of return is 10,9 %, indicating good profitability.

9. Environmental impact analysis

The project will significantly improve infrastructures in the area concerned and will, in particular for:

- the preservation, protection and improvement of the environment,

- the management of water resources.

The individual measures making up this group of projects fit in with the preliminary projects in the water resource plan for the catchment area and in the national plan; this ensures consistency with the national strategy on water resources.

The project's main purpose is to remedy the damage caused by drought in recent years, which has obliged the Spanish Government to provide for the immediate necessities of the population. But the measures should also help to prevent such serious situations arising again in the future, thereby contributing to the priority of improving the quality of life.

The project complies with the requirements for the quality of surface water used for the production of drinking water laid down in Council Directive 75/442/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/062

1. Title:

Improvement of the bed of the River Guadalhorce

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas y Calidad de las Aguas Ministerio de Medio Ambiente

3.2. Address: Paseo de la Castellana, 67 E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Andalusia

5. Description

The section of the river to be improved runs from downstream of the junction with the River Campanillas to its mouth. It branches at the point where it is crossed by the CN-340 highway. A design flow of 4000 m3 has been chosen. The course will approximately follow that of the existing bed, with the branch being channelled along the original river bed. The banks will be built up into ridges topped by service roads, to mark the boundary of the flood plain. The valley's drainage all along the section in question will have to be studied, as will the improvement or renovation of certain intrusive fixtures.

The proposed solution closely follows the route in the model at the river's mouth and along the single section. The branching section is re-routed slightly to run around a Phoenician archaeological site.

To combat erosion in the lower reach, the banks and the junction point will be reinforced with ripraps.

The upper reach will be fixed by planting grass and the slopes of the ridges and the junction point will be protected by ripraps.

Platforms will be built on top of the ridges, and will be used exclusively by the Confederación Hidrográfica del Sur for monitoring and operating the channel.

A cunette will be installed to enable the areas outside the channel to drain directly into it through pipelines with valves placed at different points.

With regard to the intrusive fixtures, it is planned to widen the Málaga-Fuengirola railway bridge and the CN 340 bridge and to relocate the Bores-Romero aqueduct and the Torremolinos waste-water pipeline. The project includes protection for the grassed areas of the Azucarera-La Colina motorway viaduct.

6. Objectives

The purpose of this project is to ensure that the final section of the River Guadalhorce, from its junction with the River Campanillas to the sea, has the capacity to absorb peak flows of 4000 m3/sec. without flooding.

The original route of the river will be maintained as closely as possible, minimising the environmental impact in a semi-urban area and improving the area between the two branches, which has been designated a "Paraje natural".

7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- working life of the investment: 30 years,

- general benefits: reduction of losses caused by flooding and erosion; reduction of losses of storage capacity; evaluation of the financial consequences of loss of human lives,

- assessment of environmental benefits: preservation, protection and improvement of the environment; prevention of flooding; improvement of an area designated a "Paraje natural"; construction of a public recreation area.

(b) Jobs created:

- in the construction phase (24 months):

direct jobs: 170,

indirect jobs: 300.

(c) The internal rate of return is 7,5 %; the net discounted value (at 6 % discount rate) is ESP 1092 million; the cost/benefit ratio is 2,2.

9. Environmental impact analysis

This project relates to the following environmental objectives laid down in Article 130r of the EC Treaty and the fifth action programme:

(1) preserving, protecting and improving the environment;

(2) protecting human health;

(3) guaranteeing rational utilisation and sustainable management of natural resources;

(4) protecting nature and biodiversity;

(5) protecting the urban environment;

(6) managing water resources.

The project also complies with Directives 92/43/EEC on habitats and 74/409/EEC on wild birds.

The specific goal of the project is to improve the environmental conditions of mainland water masses and prevent floods and soil erosion.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/065

1. Title

Waste water outfall and treatmant plant in Palencia

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria (MEH)

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas (MIMAM)

3.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Autonomous community of Castile-Leon

5. Description

The aim of this project is to build the infrastructure needed for the disposal and treatment of waste-water in the city of Palencia. It involves:

- pumping waste water from the Balastera area,

- bringing in effluent from the right bank of the river Carrión,

- pumping from the right bank to the collection chamber through a 250 mm diameter pipeline 437 m in length,

- collection works and general spillway,

- conveyance from the collection point to the treatment plant through a 250 mm diameter pipeline 2644 m in length,

- improving the banks of the river Carrión,

- pumping untreated water inside the treatment plant.

Treatment plant

Water treatment

- tank for coarse materials and pumping of untreated sewage,

- solids removal in three channels with automatic screens,

- sand-trap with grease removal in three aerated channels,

- ultrasound flow meter,

- three circular primary settling basins with scrapers,

- biological treatment with nitrification/denitrification in three lines,

- secondary sedimentation in three circular basins,

- 200 m3 reservoir for treated water, disinfection with sodium hypochlorite.

Sludge treatment

- gravity thickener for primary sludge,

- flotation thickener for excess biological sludge,

- mixing chamber for thickened sludge,

- two cylindrical anaerobic digestors,

- sludge storage basin,

- dewatering by centrifugation,

- batching of polyelectrolytes,

- sludge storage silos.

Gas system

- storage in two membrane gasometers,

- facility to burn off excess gas,

- boilers and electricity generator.

The auxiliary equipment and buildings needed to operate the plant

- The treated water will be discharged back into the river Carrión through a 1000 mm diameter reinforced concrete pipeline.

6. Objectives

This project is part of the measures to implement the National Plan for the disposal and treatment of urban waste water, in accordance with the criteria laid down in Directive 91/271/EEC.

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7. Work schedule

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8. Assessment of cost and socio-economic advantages

The economic analysis was based on a period of 20 years.

The costs taken into account were investment and operating costs and the cost of replacing equipment.

The benefits taken into account were:

- charges for discharge and sewerage, and water rates (running costs are covered by contributions from users),

- a financial estimate of the environmental benefit of improving water quality, using shadow prices and assessing the difference in the level of pollutants discharged, measured in pollution units, before and after construction of the treatment plant.

The internal rate of return is 2,67 %.

9. Environmental impact analysis

1. The proposed measure will provide adequate treatment for waste water that is not currently properly treated, reducing pollution loading of discharge and considerably improving water quality.

The proposed measures are both preventive (avoiding the possibility of environmental problems in watercourses which might even affect human health) and palliative (reducing the pollution load of wastewater discharged by a large population and helping clean up surface and groundwater.

2. The collectors must be connected to the treatment plants before they are put into use.

Sludge from treatment must be taken to a controlled tip or used in agriculture in accordance with Directive 86/287/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 97/11/61/066

1. Title

Southern general collector and waste-water treatment plant for Salamanca

2. Body making the application

2.1. Name: Dirección General de Análisis y Programación Presupuestaria (MEH)

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas (MIMAM)

3.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Autonomous community of Castile-Leon

5. Description

The aim of this project is to build the infrastructure needed for the disposal and treatment of waste-water in the city of Salamanca. It involves:

a southern general collector to take waste water from the existing treatment plant to the new plant to be built:

- 2339 m long collector made of reinforced concrete pipe 2500 mm and 3000 mm in diameter,

- spillway with lateral discharge providing minimum dilution of 1:5,

- rainwater outfall discharging into the river Tormes, 33 m long by 3000 mm diameter,

- manholes and connection shafts.

Treatment plant

Water treatment

- tank for coarse materials and lifting of untreated sewage,

- discharge chamber and spillway,

- solids removal in four channels using automatic bar screens to remove large solids and self-cleaning screens,

- sand and grease removal in four aerated channels,

- parshall-type ultrasound flow meter,

- three circular, static primary settling basins,

- collection chamber and biological bypass,

- four flocculation tanks with three sections (anoxic, optional and aeration),

- secondary sedimentation by suction in four circular basins,

- collection chamber for treated water and discharge outlet,

- chlorination tank.

Sludge treatment

- pumping of primary sludge,

- pumping and recirculation of biological sludge,

- two gravity thickeners for primary sludge,

- two flotation thickeners for excess biological sludge,

- mixing and homogenisation chamber for thickened sludge,

- pumping of sludge to the digestor,

- three cylindrical anaerobic digestors,

- sludge heating equipment,

- sludge storage basin,

- dewatering by centrifugation (three units),

- batching of polyelectrolytes,

- two sludge storage silos.

Gas system

- storage in three low-pressure gasometers,

- facility to burn off excess gas.

The auxiliary equipment needed to operate the plant.

6. Objectives

This project is covered by the National Plan for the disposal and treatment of urban waste water, in accordance with the criteria laid down in Directive 91/271/EEC.

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

The economic analysis was based on a period of 20 years.

The costs taken into account were investment and operating costs and the cost of replacing equipment.

The benefits taken into account were:

- charges for discharge and sewerage, and water rates (running costs are covered by contributions from users),

- a financial estimate of the environmental benefit of improving water quality, using shadow prices and assessing the difference in the level of pollutants discharged, measured in pollution units, before and after construction of the treatment plant.

The internal rate of return is 6,65 %.

9. Environmental impact analysis

1. The proposed measure will provide adequate treatment for waste water that is not currently treated, reducing the pollution loading of discharge and considerably improving water quality.

The proposed measures are both preventive (avoiding the possibility of environmental problems in watercourses which might even affect human health) and palliative (reducing the pollution load of waste water discharged by a large population and helping clean up surface and ground water).

2. The collectors must be connected to the treatment plants before they are put into use.

Sludge from treatment must be taken to a controlled tip or used in agriculture in accordance with Directive 86/287/EEC.

10. Cost and assistance

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ANNEX

FINANCING PLAN

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PROJECT No 98/11/61/001

1. Title

Phase III of the Alcázar de San Juan waste-water treatment plant (Ciudad Real)

2. Body making the application

2.1. Name: Dirección General de Análisis yProgramación Presupuestaria Ministerio de Economía y Hacienda

2.2. Address: Paseo de la Castellana, 162 E - 28071 Madrid

3. Body responsible for implementation

3.1. Name: Dirección General de Obras Hidráulicas y Calidad de las Aguas Ministerio de Economía y Hacienda

3.2. Address: Plaza de San Juan de la Cruz s/n E - 28071 Madrid

4. Location

4.1. Member State: Spain

4.2. Region: Castile-La Mancha

4.3. Province: Ciudad Real

5. Description

The project will be constructed under contract with payment of the full price on reception of the completed work.

It involves the construction of the third phase of a waste-water treatment plant at Alcázar de San Juan. This phase comprises the extension and redesign of the two existing phases and construction of a third treatment phase.

Phase I

Water treatment: construction of a new chemical treatment facility. Redesign and enlargement of the biological reactor, including internal recirculation of sludge.

Phase II

Water treatment: construction of a new screen and sand and grease traps for the second and third phases. Primary decanter with scrapers to eliminate foam and floating matter. Redesign and extension of the biological reactor, including internal recirculation of sludge.

Phase III

Water treatment: construction of a flocculation tank for the second and third phases. Removal of gross solids and water pump for second and third phases.

Physical and chemical treatment: primary decantation, first-stage biological treatment, intermediate decantation, two flocculation tanks with areas including and excluding oxygen. New construction to disinfect the effluent and filter and discharge treated water (common to the three phases).

Sludge treatment: sludge thickening by gravity and floatation. Mixing chamber for the three phases.

Miscellaneous: construction of new control centre and redesign of the existing centre. Inter alia, the following new auxiliary facilities: rainwater network, drinking and industrial water network, natural discharge to the River Cigüela.

6. Objectives

The principal reason for this project is to protect water quality and the environment in accordance with the National Plan for the treatment of waste water. The specific objective is to ensure adequate treatment for waste water through complete infrastructure meeting the requirements of Directive 91/271/EEC. The technical design criteria for the extension of the third phase of the Alcázar de San Juan treatment plant are as follows:

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7. Work schedule

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8. Assessment of costs and socio-economic advantages

(a) A cost-benefit analysis has been carried out on the following basis:

- working life of the investment: 20 years

- operating and maintenance costs

- operating and maintenance costs will be covered by a treatment tax

- evaluation of the environmental benefits: improved water quality, public health

- evaluation of the financial benefits: re-use of treated water will generate revenue that can be used to recover the initial investment

(b) Job creation:

- in the construction phase (32 months):

- direct: 116

- indirect: 70

- in the operational phase:

- direct: 7

- indirect: 5

(c) Internal rate of return (IRR): 4,7 %

9. Environmental impact analysis

9.1. Rules applicable

Through a rational utilisation of natural resources, the project will help satisfy the drinking-water requirements and protect the health of the populations concerned. It will permit the social and economic development of the area while protecting the environment.

The project will comply with the environmental objectives set out in Article 130r of the EC Treaty and the fifth Community programme of policy and action in relation to the environment and sustainable development.

It will also fulfil the requirements laid down by various Community environmental Directives. The project will comply with D