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Main Contractor for Septic Tank Repairs at Wainui Beach School 2721

Details

RFx ID : 21282948
Tender Name : Main Contractor for Septic Tank Repairs at Wainui Beach School 2721
Reference # : 1877
Open Date : Monday, 22 July 2019 9:00 AM (Pacific/Auckland UTC+12:00)
Close Date : Wednesday, 21 August 2019 5:00 PM (Pacific/Auckland UTC+12:00)
Department/Business Unit : Board of Trustees - Approve by BoT - ie. School Principal
Tender Type : Request for Tenders (RFT)
Tender Coverage : Sole Agency  [?]
Categories :
  • 72000000 - Building and Facility Construction and Maintenance Services
Regions:
  • Gisborne
Exemption Reason : None
Required Pre-qualifications : None
Contact : All queries to be made through the GETS website Q&A function
Alternate Physical Delivery Address  : All submissions to be made through the GETS website
Alternate Physical Fax Number  : N/A
Overview

Wainui Beach School has experienced failure of either or both its original septic tank and the
associated effluent field.
The failure is evidenced by ground dampness and odour noticeable at the main entry to the
school suggesting that effluent is bypassing the effluent field altogether and surfacing some
25m away from the septic tank.
The outcome sought is the construction of a new effluent field to the north of Block S, adjacent
to the effluent field currently serving the school’s second septic tank.
The new field will require in-ground pipework with filtration and pump equipment at the #1
tank.
The existing system has been inspected and a report submitted which addressed the
following:
 If the existing tank can be re-used
 What the size of the new field needs to be
 The type of system to be installed
 Where the effluent field can be located
The recommendations of the septic designer include that:
 The existing Septic System 1 be abandoned, the field left under the carpark and the
tank removed.
 A new multi-tank system be installed in the current location for Septic 1 tanks and run
to a new effluent field located on the school field. Tank sizes reduced slightly for cost
efficiencies, but de-sludge programme shortened from 4 years to 3 years.
 The existing Septic 2 tanks be re-used, but the existing Septic 2 effluent field
abandoned, and Septic 2 system be connected into the new effluent field that Septic 1
is running to.
 The new combined system be designed for a roll of 400 (including staff)
Project consultants are:
o Project Manager and Lead Designer: Architects 44 Ltd (Dan King)
o Septic designer - LDE Gisborne - Andrew Appleby