Ringsend Waste Water Treatment Works Extension Project – Treatment Capacity Expansion Contract

Quantity or scope

Refer to the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document for detailed information on the project and all of its requirements. A summary of the scope of works is provided below.The design and construction of an extension to the Ringsend Wastewater Treatment Works (WwTW) providing facilities to treat an average daily loading of primary effluent of 16,320 kg/day BOD-5 (24,480 kg/day BOD-5 at 95% loading rate) to secondary treatment standards including 25 mg/L BOD-5 and 35 mg/L TSS, both at a 95th percentile compliance rate, including (but not limited to) the following elements/works:— diversion and control of flows up to 2.7 m3/s of primary effluent from an existing concrete box conduit;— construction of a new pumping station or modifications to an existing pumping station to convey the diverted flow to the new facilities;— constructing the secondary treatment extension within a limited portion of the active WwTW;— returning the treated secondary effluent to the existing final effluent channel;— thickening, storing and conveying surplus activated sludge to existing solids treatment facilities;— diversion and control of a portion of the secondary effluent from the existing final effluent conduit to a new Effluent Fine Screening (EFS) Facility;— construction of a new EFS Facility that will treat flows up to 2.7 m3/s of secondary effluent and produce a screened effluent containing not more than 10 mg/L TSS;— works could involve the construction of a deep pipeline to the EFS Facility requiring pipe jacking for a portion of its length;— construction of an EFS effluent pumping station;— connection of the EFS effluent pumping station discharge to existing final effluent box culvert;— new transformers and switch gear to power the new works;— integrating all new instrumentation and control systems with the existing WwTW's SCADA system, and— miscellaneous site work including the excavation and off-site disposal of circa 10,000 m3 of spoil and most likely piled/deep foundations;The project will be constructed on an active WwTW. The Contractor's activities must not interfere with the continuous procession and treatment of wastewater (except as specified in the contract documents) and the Contractor is obliged to cooperate and coordinate activities with the existing WwTW Operator insofar as they interface.The detailed design and execution of the project shall be undertaken by the Contractor in accordance with the Employer's planning, environmental, and other statutory consents.Further information on the project, its EIS and planning consent is available at the following links:http://www.dublincity.ie/WaterWasteEnvironment/WasteWater/RingsendWastewaterTreatmentWorksExtension/Pages/RingsendWastewaterTreatmentWorksExtension.aspxhttp://www.pleanala.ie.casenum/YA0010.htm45 000 00055 000 000

Additional information

Dublin City Council is subject to the provisions of the Freedom of Information Act (FOI) 1997, 2003. If a Candidate considers that any of the information supplied by it in response to this competition/notice is either commercially sensitive or confidential in nature, this should be highlighted and the reasons for the sensitivity specified. In such cases, the relevant material, will in response to the FOI request, be examined in the light of the exemptions provided for in the Acts.

It will be a condition for the award of any contract by Dublin City Council that the successful Tenderer and all sub-contractors (if applicable) possess a valid Tax Clearance Certificate from the Revenue Commissioners in compliance with Circular (43) 2006 (as substituted or amended) and that the certificate be maintained for the duration of the contract on a 12 month rolling basis. In the case of a non-resident Tenderer, a statement of suitability from the Revenue Commissioners will be required.

Please note that contracts which involve elements of construction, installation and repair are subject to Relevant Contracts tax (RCT). Further details are available at the following link: http://www.revenue.ie/en/tax/rct/index.html. Note - that for the purposes of the Relevant Contracts Tax ONLY the Contracting Authority is defined/referred to by the Revenue Commissioners as a “Principal Contractor” and the Works Contractor is defined/referred to as a “Sub-Contractor” and these definitions should not be confused with those applying under the Conditions of Contract (or elsewhere) in this procurement competition.

Candidates must register their interest in this competition on the eTenders web site (www.etenders.gov.ie) in order to be included on the mailing list for notices and clarifications which shall ONLY issue by email to registered parties from the eTenders Website (and NOT from the rinsendextension@dublincity.ie email address).

Dublin City Council does not accept submission of documents electronically via the www.etenders.gov.ie website or directly by fax or email and 'Requests to Participate' in this competition must be submitted strictly in accordance with Section 5.2 of the document entitled “Introduction to the Suitability Assessment Questionnaire”. Emailed/faxed/or late submissions will not be accepted. Candidates shall include their contact details (name and return address) on the outer packaging of their submissions.

Please note in relation to all documents, that where reference is made to a particular standard, make, source, process, trademark, type or patent, that this is not to be regarded as a de facto requirement. In all such cases it should be understood that such indications are to be treated strictly and solely for reference purposes only, to which the words "or equivalent" shall always be appended.

Please note also that all information relating to attachments, including clarifications and changes, in respect of this procurement competition shall be published on the Irish Government Procurement Opportunities Portal (www.etenders.gov.ie) only. Registration is free of charge. Dublin City Council will not accept responsibility for information relayed (or not relayed) via third parties.

'Requests to Participate' may be submitted in the English or the Irish language.

Please note that OJEU contracts are covered by the Government Procurement Agreement (GPA).

All queries regarding this procurement competition must be emailed to ringsendextension@dublincity.ie. Queries must be in question format and must be submitted by email. Responses, if issued, will only be circulated to those candidates who have registered an interest in this notice on the Irish Government procurement opportunities portal (www.etenders.gov.ie). The details of the party making the query will not be disclosed when circulating the response. All queries must be submitted by the deadline stated in the competition documents to enable issue of responses to all interested parties.

To receive more information about this tender, including any amendments and/or clarifications and to request any clarifications and/or to respond to this tender, you must register your interest to this tender on the following site: https://irl.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=61703&B=ETENDERS_SIMPLE

Short description

The design and construction of an extension to the Ringsend Wastewater Treatment Works (WwTW) providing facilities to treat an average daily loading of primary effluent of 16,320 kg/day BOD-5 (24,480 kg/day BOD-5 at 95% loading level) to secondary treatment standards including 25 mg/L BOD-5 and 35 mg/L Total Suspended Solids (TSS), both at a 95th percentile compliance rate. The project will be constructed on an active WwTW and a very restricted site.

Main financing conditions and payment arrangements and/or reference to the relevant provisions governing them

The Conditions of Contract for the project shall be the ‘Public Works Contract for Civil Engineering Works Designed by the Contractor (PW-CF 4)' (see http://constructionprocurement.gov.ie/contracts/ for current version), which conditions set out the main financing and payment arrangements of the contract.

Legal form to be taken by the group of economic operators to whom the contract is to be awarded

If the successful Tenderer is a joint venture, consortium, or other unincorporated grouping of two or more persons (human, corporate, or unincorporated), those persons shall be jointly and severally liable to the Contracting Authority for the performance of the Contract.