Wastewater treatment plant construction work

Wastewater treatment plant construction work

PRO000138 Davyhulme AMP5 Water Framework Directive (WFD).

UK-Warrington: wastewater treatment plant construction work

2012/S 97-162177

Contract notice – utilities


Directive 2004/17/EC

Section I: Contracting entity

I.1)Name, addresses and contact point(s)

United Utilities Water plc
Clearwater 4, Lingley Green Business Park, Lingley Green Avenue, Great Sankey
Contact point(s): UK Warrington
For the attention of: Alison Ardrey
WA5 3UZ Warrington
Telephone: +44 1925773287
E-mail: alison.ardrey@uuplc.co.uk
Fax: +44 1925773253

Internet address(es):

General address of the contracting entity: www.unitedutilities.co.uk

Further information can be obtained from: The above mentioned contact point(s)

Tenders or requests to participate must be sent to: The above mentioned contact point(s)

I.2)Main activity

I.3)Contract award on behalf of other contracting entities

The contracting entity is purchasing on behalf of other contracting entities: no

Section II: Object of the contract

II.1.1)Title attributed to the contract by the contracting entity:

PRO000138 Davyhulme AMP5 Water Framework Directive (WFD).
II.1.2)Type of contract and location of works, place of delivery or of performance

Design and execution

II.1.3)Information about a public contract, a framework agreement or a dynamic purchasing system (DPS)

The notice involves a public contract
II.1.4)Information on framework agreement
II.1.5)Short description of the contract or purchase(s):

The Contract comprises the design, procurement, construction and commissioning of a new process treatment facility to achieve a lower final effluent (FE) ammonia consent at Davyhulme Waste Water Treatment Works (WwTW), Manchester. Note: dependant on the type of treatment process selected following the Invitation to Tender there may be a requirement for the Contractor to provide an extended period of Client training and / or assistance to optimise plant performance.
Davyhulme is United Utilities largest WwTW, treating wastewater from a population equivalent of about 1.1 million from the Greater Manchester conurbation. Davyhulme discharges its FE to the Manchester Ship Canal. The current FE consent is 20mg/l BOD, 30mg/l SS and 3mg/l NH3 (on a 95 %ile basis). The future consent will be 20mg/l BOD, 30mg/l SS and 1mg/l NH3 (on a 95 %ile basis).
The future FE consent is driven by Davyhulme’s inclusion in the National Environment Programme as a result of the receiving Manchester Ship Canal being designated under the Freshwater Fish Directive in 2003. This revised consent will also meet the requirements of the Water Framework Directive.
Background – Current Operation.
Davyhulme WwTW consists of two parallel treatment streams (ASP1 and ASP2) downstream of a common inlet sewer. Both ASP1 and ASP2 streams have screening, grit removal and primary settlement prior to non-nitrifying aeration tanks (provided with surface aeration) and final settlement. The effluent from the ASP1 and ASP2 final settlement tanks is treated together in a common tertiary biological aerated flooded filter (BAFF) for nitrification, from which FE is discharged to the Manchester Ship Canal.
Sludge treatment at Davyhulme WwTW is currently undergoing refurbishment and expansion as part of the Sludge Balanced Asset Programme (SBAP) project to treat raw sludge up to 91 000 tonned dry solids sludge per annum (tdspa). The major components of SBAP are a reception / screening facility of indigenous, followed by thickening, and imported liquid sludge’s and a reception and storage facility for sludge cake imports. Sludges are subject to digestion pre-treatment by thermal hydrolysis followed by mesophilic anaerobic digestion. Digested sludges can be dewatered, using centrifuges and exported to land or may be either transferred to the United Utilities Shell Green incineration facility via the Mersey Valley Sludge Pipeline (MVSP).
The dewatering centrifuges will produce between 16 000 to 32 000 tdspa of thermally hydrolysed digested sludge cake. The centrate from the dewatering centrifuges will be treated in a dissolved air flotation (DAF) plant (to remove excess suspended solids) and stored in a balancing tank. It is then returned to the ASP1 (either before primary settlement tanks, aeration tanks or final settlement tanks).
Related Contracts (outside the scope of this tender process).
In addition to the Contract covered by this OJEU Notice, the Company is undertaking a separate contract to undertake the refurbishment and upgrade of the existing WwTW Tertiary BAFF plant.
This contract will provide the Tertiary BAFF plant with the capability to achieve a 1mg/l ammonia effluent consent standard for a proportion of the WwTW flows.
Scope of Contract covered by this OJEU Notice.
A new process treatment facility will be required to treat WwTW flows above the capacity of the refurbished United Utilities Tertiary BAFF and to treat the SBAP dewatering centrifuge centrate.
It is envisaged that the new process treatment facility will consist of two main process areas, a Liquor Treatment Plant (LTP) to treat the low volume SBAP dewatering centrifuge centrate, and a Tertiary Ammonia Removal Plant (TARP) to treat the high volume WwTW sewage flows. It will be permissable to combine the LTP and TARP into a single process treatment area.
The new process treatment facility will be required to produce a treated effluent to meet the future FE consent requirements.
It is anticipated this Contract will generally incorporate the following:
— Design, construction and commissioning of the new works.
The new works are expected to include but not be limited to the following:
— A dual process treatment facility, comprising,
—— Liquor Treatment Plant (LTP) including centrate transfer, treatment and effluent and sludge transfer,
—— Tertiary Ammonia Removal Plant (TARP) including flow transfer, process treatment and effluent and backwash transfer.
— A single process treatment facility comprising,
—— Dewatering centrate and WwTW flow transfer, combined treatment and effluent, sludge and backwash transfer,
—— Works to ensure compliance with the requirements of the EPR permit,
—— Internal site roads within the process treatment facility areas,
—— New site access road from the process treatment facility to a new site entrance,
—— Construction of a new primary sub-station building,
—— Modifications to existing site high voltage infrastructure,
—— Ancillary and accommodation works – site drainage and return,
— Electrical instrumentation control and automation (EICA) and a distributed control system (DCS).
II.1.6)Common procurement vocabulary (CPV)


II.1.7)Information about Government Procurement Agreement (GPA)

The contract is covered by the Government Procurement Agreement (GPA): yes
II.1.8)Information about lots

This contract is divided into lots: no
II.1.9)Information about variants

Variants will be accepted: yes
II.2)Quantity or scope of the contract
II.2.1)Total quantity or scope:

Design, procurement, construction and commissioning of the works described on ll.1.5.
Estimated value excluding VAT: 35 000 000 GBP
II.2.2)Information about options

Options: no
II.2.3)Information about renewals

This contract is subject to renewal: no
II.3)Duration of the contract or time limit for completion

Duration in months: 25 (from the award of the contract)

Section III: Legal, economic, financial and technical information

III.1)Conditions relating to the contract
III.1.1)Deposits and guarantees required:

The contracting entity reserves the right to require Parent Company Guarantees, Performance Bond or other forms of appropriate security.
III.1.2)Main financing conditions and payment arrangements and/or reference to the relevant provisions governing them:

To be identified in the Invitation to Tender documents.
III.1.3)Legal form to be taken by the group of economic operators to whom the contract is to be awarded:

In the case of an award to a consortium, alliance or joint venture etc all members shall be required to contract in any one of the following forms:
i) Contractual joint venture with joint and several liability under English Law
ii) Corporate joint venture
iii) Contractor / subcontractor(s) relationship
Where a company representing a consortia, alliance or joint venture expresses an interest, the company who responds to this notice will be deemed to be the lead bidder to whom all communication will be addressed. Subcontracting will be permitted.
III.1.4)Other particular conditions:

The performance of the contract is subject to particular conditions: no
III.2)Conditions for participation
III.2.1)Personal situation of economic operators, including requirements relating to enrolment on professional or trade registers

Information and formalities necessary for evaluating if the requirements are met: Please refer to the Pre-qualification Questionnaire which is available free of charge from:

Login: Davyhulme Water.
Password: wfdpass.
Note: Login and Password access details are case sensitive.

III.2.2)Economic and financial ability

Information and formalities necessary for evaluating if the requirements are met: Please refer to the Pre-qualification Questionnaire.
III.2.3)Technical capacity

Information and formalities necessary for evaluating if the requirements are met: Please refer to the Pre-qualification Questionnaire.
III.2.4)Information about reserved contracts
III.3)Conditions specific to services contracts
III.3.1)Information about a particular profession

Execution of the service is reserved to a particular profession: no
III.3.2)Staff responsible for the execution of the service

Legal persons should indicate the names and professional qualifications of the staff responsible for the execution of the service: yes

Section IV: Procedure

IV.1)Type of procedure
IV.1.1)Type of procedure

Some candidates have already been selected (if appropriate under certain types of negotiated procedures): no
IV.2)Award criteria
IV.2.1)Award criteria

The most economically advantageous tender in terms of the criteria stated in the specifications or in the invitation to tender or to negotiate
IV.2.2)Information about electronic auction

An electronic auction will be used: no
IV.3)Administrative information
IV.3.1)File reference number attributed by the contracting entity:
IV.3.2)Previous publication(s) concerning the same contract

Notice number in the OJEU: 2010/S 151-233703 of 3.8.2010

Other previous publications

Notice number in the OJEU: 2010/S 151-233703 of 3.8.2010

IV.3.3)Conditions for obtaining specifications and additional documents

Payable documents: no
IV.3.4)Time limit for receipt of tenders or requests to participate

9.7.2012 – 14:00
IV.3.5)Language(s) in which tenders or requests to participate may be drawn up
IV.3.6)Minimum time frame during which the tenderer must maintain the tender
IV.3.7)Conditions for opening tenders

Persons authorised to be present at the opening of tenders: yes
Authorised representative of United Utilities Water plc.

Section VI: Complementary information

VI.1)Information about recurrence

This is a recurrent procurement: no
VI.2)Information about European Union funds

The contract is related to a project and/or programme financed by European Union funds: no
VI.3)Additional information:

The Contracting Entity reserves the right not to award any or part of this Contract. Bidding is at the risk of the bidders.
Interested parties are invited to an introductory presentation to be held on Wednesday 13th June 2012 commencing 9.30am at the Everglades Park Hotel, Derby Road, Widnes, Cheshire WA8 3UJ.
Interested parties are to confirm no later than Wednesday 6th June 2012 their intention to attend.
VI.4)Procedures for appeal
VI.4.1)Body responsible for appeal procedures
VI.4.2)Lodging of appeals

Precise information on deadline(s) for lodging appeals: United Utilities Water plc will incorporate a standstill period at the point information on the award of contract is communicated to tenderers. That notification will provide full information on the award decision. The standstill period, which will be for a minimum of 10 calendar days, provides time for unsuccessful tenderers to challenge the award decision before the Contract is entered into.
The Utilities Contracts Regulations (SI 2006 No 6) provide for aggrieved parties who have been harmed or are at risk of harm by a breach of the rules to take action in the High Court (England, Wales and Northern Ireland).
VI.4.3)Service from which information about the lodging of appeals may be obtained

VI.5)Date of dispatch of this notice:22.5.2012