North West Ashburton Wastewater Servicing

Tender ID: 494394

Tender Details

Tender #:
WWAT0089  
Status:
Closed
Publish Date:
08 June 2022
Closing Date:
28 June 2022

Tender Description

The Ashburton District Council is seeking tenders for the provision of civil, mechanical and electrical construction services to supply and construct Council's planned programme for North West Ashburton Wastewater Servicing.

 
The Contract Work includes (but are not necessarily limited to):
 
- Confirming locations of existing services in the vicinity of the works and setting out the location of new pipes and components.
- Supply and installation of 800m of new DN150 uPVC SN8 pipework for wastewater mains.
- Supply and installation of 550m of new DN225 uPVC SN8 pipework for wastewater mains.
- Supply and installation of 480m of new DN300 uPVC SN8 pipework for wastewater mains.
- Supply and installation of 15m of new OD180 PE100 PN12.5 pipework for wastewater mains.
- Supply and installation of all new manholes and drop structures.
- Supply of 15m of new DN250 steel carrier pipe, installed via trenchless methods.
- Supply and installation of flush tank system.
- Decommissioning and abandonment of 750m of existing OD63 PE pressure main by blank capping and sealing at the ends with a concrete plug or grout fill.
- Connections into, and modifications of, existing pipework, where required.
- Backfill, embedment and reinstatement, where required.
- Specialist design, supply and installation of the North-West Ashburton Pump Station, a 2.14m diameter (or larger) by 4.0m deep wet well and valve chamber, constructed as a GRP packaged pump station located in Lot 11 of 128 Allens Road.
- Specialist design, supply and installation of 2 x 116m3 of emergency storage capacity (2 chambers each 64m long and 1.5m diameter), to be installed in line with the gravity network. Tanks to be fitted with automatic washdown systems.
- The mechanical fit out of the pump station. Pumps will be staged over the life of the station.
- The electrical fit out of all controls and switchboards to be located in an electrical cabinet on Site.
- Supply and installation of an odour control system for the pump station, consisting of a Armatec green dome filter.
- Supply and installation of the pump station discharge flowmeter, including chambers and pipework.
- Connection into adjacent DN100 watermain and supply of water meter, backflow preventer (RPZ) and camlock fitting.
- Landscaping of a portion of the Site.
- Supply and installation of 320m of OD225 PE100 PN10 pressure main, connecting into the existing gravity wastewater network, via a new manhole.
- Supply and installation of an odour control system for the discharge manhole, consisting of a Armatec green dome filter.
- Testing all new pipes in accordance with the Specification.
- CCTV all new gravity pipes.
- Disinfection of all new water pipework.
- Commissioning of all new pipework.
- Provision of shop drawings for all specialist supply plant and equipment.
- Provision of as-built drawings.
 
All queries must be directed via the Tenderlink Forum to the ADC Forum Administrator, Hernando Marilla
 
No tender queries are to be submitted after 31 May 2022.

Location

New Zealand   :   Canterbury