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TED - Tenders Electronic Daily (Publications Office of the EU) verified 1 hour ago Contract notice

Spain - Engineering services - Technical assistance for drafting the preliminary design for the expansion of the Rioseco drinking water treatment plant

Original España - Servicios de ingeniería - Asistencia técnica para la redacción del anteproyecto para la ampliación de la ETAP de Rioseco.

Open Spain Principado de Asturias Architecture & engineering services

Buyer Consorcio para el Abastecimiento de Agua y Saneamiento en el Principado de Asturias

30 days left

Key facts

Closes
23:59 (UTC+1)
Estimated value
€251,586
Procedure
Open procedure
  1. Published
  2. Today
  3. Deadline open for 32 days
  4. Awarded pending

Bidding window

32 days from publication to deadline

Usual length

Notices of this kind (Spain, open procedure, above the EU threshold) give a median of 30 days, half of them between 28 and 34 days, based on 34,030 notices of the last two years.

This buyer usually gives 28 days (median of its last 25 calls for tender).

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Summary

Machine-generated summary

Technical assistance services are being procured for drafting the preliminary design of the expansion of the Rioseco drinking water treatment plant in Spain. The contractor must carry out a study of alternatives defining the production capacity of potable water for the expansion and the technological options for the water treatment process. Beyond standard engineering work, the preliminary design must include an Operation and Maintenance Study enabling the construction company to commission and operate the expanded plant for a minimum period of one year, verifying proper operation and compliance with guarantees. It must also include a Works Reception Protocol setting out the functional and operational guarantees to be achieved, of contractual nature, to be checked during commissioning.

Description

El alcance de las actuaciones objeto del contrato consiste en la realización de un estudio de alternativas que defina tanto la capacidad de producción de agua potable de la ampliación de la ETAP, como las opciones tecnológicas para el tratamiento de potabilización. El Adjudicatario deberá realizar todas las actuaciones necesarias para alcanzar la correcta definición de los documentos específicos que se relacionan en los Pliegos. Además de los trabajos habituales de ingeniería, el anteproyecto deberá contener un Estudio de Operación y Mantenimiento, que permita desarrollar por parte de la empresa constructora la puesta en marcha y explotación de la ampliación por un periodo mínimo de un año, para que se pueda verificar la adecuada operatividad y cumplimiento de garantías. También deberá disponer de un Protocolo de Recepción de la Obra en el que se determinen las garantías funcionales y operativas que ha de lograr el proyecto constructivo, las cuales tendrán carácter contractual, y habrán de ser verificadas durante la puesta en marcha de las instalaciones.

Bid or no-bid?

Six questions before you commit a team. Under each one, what the register holds on it. The answers are yours.

  1. In your favour:

    Do we meet every eligibility criterion?

    Open procedure: any interested supplier may submit a bid.

    Above the EU threshold: open to companies from any EU country.

  2. Your call:

    Can we deliver this with the team we have?

    Estimated at €251,586.

  3. Your call:

    Do we have two comparable references?

    Comparable work is in Architecture & engineering services.

  4. In your favour:

    Is the deadline realistic for a proper offer?

    30 days left, 21 of them working days.

  5. Your call:

    Is there a margin at the likely winning price?

    In this country this kind of contract is usually awarded for between €4,600 and €294,139.

  6. Your call:

    Do we know this buyer?

    The buyer has 42 notices in the register and no pattern of winners yet.

Can I bid?

  • Open procedure: any interested supplier may submit a bid. Above the EU threshold: open to companies from any EU country.
  • The notice is written in Spanish.
  • Certificates from another EU country? Check the equivalents on eCertis

Official source

Source: TED - Tenders Electronic Daily (Publications Office of the EU)

Always verify details on the official notice.

Report an error in this notice

Last verified against TED - Tenders Electronic Daily (Publications Office of the EU) 1 hour ago

Expected award price

likely award for this notice, from its published estimate of €251,586
€158,499 to €223,911

Comparable awards in this country and sector came in at a median of 78% of their published estimate, half of them between 63% and 89%, based on 1,038 awards of the last 3 years.

Each award is compared with the estimate of the same lots, framework agreements excluded. A published estimate may include options and renewals, so an award under it is not always a discount.

What this market pays

The buyer has too few awards of its own in this sector, so this is the range of the last 2,000 awards for Architecture & engineering services in Spain.

This notice
€251,586
Median award
€14,900
Middle half of past awards
€4,600 to €294,139

The estimate sits inside the usual range.

Award values as published by the official sources. Use them as a guide, not a rule: scope, lots and duration differ between contracts.

Consorcio para el Abastecimiento de Agua y Saneamiento en el Principado de Asturias

Spain

notices in the register
42
awards
13
awarded in total
€38.1M

Who wins its contracts

Many suppliers
different companies won its awards
10
of the awards went to the three most frequent winners
30%
of its calls state an estimated value
100%

Based on 10 awards with a named winner over the last 3 years. Counted by award, not by value, because lot and framework amounts are not comparable. Concentrated means the three most frequent winners took 65% or more of the awards; many suppliers, under 35% with at least ten different winners.

One dot per award, on the day it was signed, sized by its value. A ring is an award with no published value.

This buyer has no award history in this sector yet. Usual winners, Architecture & engineering services - Spain

Company Wins Total awarded Last win
ENDESA ENERGÍA S.L. 143 €36,936 Sep 2026
INCO, ESTUDIO TÉCNICO, S.L. 105 €2.6M Oct 2026
CENTRO DE ESTUDIOS DE MATERIALES Y CONTROL DE OBRA, S.A. (CEMOSA) 73 €3.3M Sep 2026
S.P.R.L. MARE NOSTRUM, S.L. 68 €454,802 Sep 2026
EDISTRIBUCION REDES DIGIT SL 60 €37,641 Jun 2026

Based on 13070 awards with a linked company profile over the last 2 years.

5 open tenders right now

Market context

Larger than 35% of the open notices in Architecture & engineering services across Europe.

open now in Architecture & engineering services
20,994
median open notice
€468,196

Who wins in this market

Many suppliers

Spain · Architecture & engineering services

different companies won awards here
7,513
of the awards went to the three most frequent winners
2%
winners of the last 12 months were new here
7,045 of 7,217
buyers awarded contracts here
2,681

Based on 13,028 awards with a named winner over the last 3 years. Counted by award, not by value, because lot and framework amounts are not comparable. Concentrated means the three most frequent winners took 65% or more of the awards; many suppliers, under 35% with at least ten different winners. New: no award from the same buyer or market in the two years before.

Competition

tenders per lot on average (open and restricted procedures)
5.8
of those lots received a single tender
13%
of the awards went to companies based in another country
1%
of the tenders came from another country
2%

As the official award notices state them, over the last 3 years. Tenders per lot count open and restricted procedures only: in a negotiated procedure or a direct award a single tender is the procedure itself. The country is the one the notice gives for the winner.

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30 days left

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