Roxburgh Wastewater Treatment Plant Desludging

Details

Tender Closed
RFx ID :	28200995
Tender Name :	Roxburgh Wastewater Treatment Plant Desludging
Reference # :
Open Date :	Friday, 29 September 2023 3:00 PM (Pacific/Auckland UTC+13:00)
Close Date  :	Friday, 3 November 2023 3:00 PM (Pacific/Auckland UTC+13:00)
Department/Business Unit :	Central Otago District Council
Tender Type :	Request for Proposals (RFP)
Tender Coverage :	Sole Agency  [?]
Categories :	77000000 - Environmental Services 81000000 - Engineering and Research and Technology Based Services 83000000 - Public Utilities and Public Sector Related Services
Regions:	Otago
Exemption Reason :	None
Required Pre-qualifications :	None
Contact :	Kate Hayward kate.hayward@codc.govt.nz +6434400609
Alternate Physical Delivery Address  :	1 Dunorling Street, Alexandra
Alternate Physical Fax Number  :
Agency Address :

CODC requires an experienced contractor to desludge two oxidation ponds at the Roxburgh Wastewater Treatment Plant (WWTP).
This procurement relates to the desludging and dewatering component only.
Disposal options will be contracted out on a separate contract at the end of the drying period.
The WWTP treats municipal wastewater from the township of Roxburgh via (recently installed) screens and oxidation ponds, with disposal to land via infiltration swales.
The two oxidation ponds are in series, separated by a narrow earth embankment and connected through a pipe and valve system.
The ponds have a concrete waveband while the base is constructed of compacted earth and selected silts which act as a low permeability liner.
Effluent from the oxidation ponds is piped to five basins which allow wastewater to infiltrate into the ground.
A sludge survey was carried out by Conhur in 2022. The sludge amount has not changed significantly since the sludge survey was carried out.

This tender has been awarded.

• Site Care Ltd - 7 Johnbrook Crescent, Wharewaka, Taupo, 3378, NEW ZEALAND

Award Date: Monday, 18 December 2023 (Pacific/Auckland UTC+13:00)
Date RFx was completed/updated: Monday, 18 December 2023 2:04 PM (Pacific/Auckland UTC+13:00)