MDC is delivering a new water scheme that will provide drinking water to the RNZAF Base at Ohakea and surrounding areas where PFAS has contaminated existing groundwater sources.

This Contract involves the construction of ~5000m of 125mm watermain, and ~9000m of 63mm watermain, (polyethylene pipe, outside diameter) with associated fittings and valves etc. Construction is all located within MDC road reserve. The alignment has been designed for mole ploughing, with some directional drilling as shown on the tender drawings. However, the method(s) of construction are to be nominated by tenderers, and may include: conventional trenching, drilling, mole ploughing, chain trenching. In addition to the watermain described a 41.3mm x 30.4mm fibreoptic conduit will be installed along the same alignment.

The alignment provided on the tender drawings may be varied by agreement. Tenders should highlight any proposed alignment changes in their tender submission.

The contract work involves all construction and reinstatement, and includes testing and sterilisation. All polyethylene pipe for the contract works will be supplied by the Principal. All fittings and valves etc. are to be supplied by the tenderer, in accordance with the tender drawings and schedule.

MDC has applied for and obtained resource consent for earthworks. The conditions of the earthworks consent form part of the requirements of the contract works.