The Development Engineer (Development.Engineer@selwyn.govt.nz) is to be informed of the commencement of work and timing of the following stages to allow the opportunity to inspect the stage of work if considered necessary:

Drainage:

  • Prior to start. A pre-start meeting is required with the drain layer present to outline specifications and methodologies.
  • Prior to backfilling. In weak ground conditions and/or where a high water table is present a subgrade inspection may be required along with the observation of testing as deemed necessary.
  • Prior to the first Corbel being poured. Inspections of Corbels there-on as deemed necessary.
  • Pressure testing of mains.
  • Grass strike of swales and basins. Grass strike should be established on swales and basins prior to 224 where practical. If grass strike has not been established the hydroseeding must be in place. This inspection may be undertaken as part of the 224 sign off process.
  • Completion of soak holes. To allow testing to be undertaken in the presence of SDC staff.
  • Practical Completion. To allow inspection of all completed works. This may be undertaken as part of the 224 sign off process.

Roading:

  • Prior to sub-base placement. To allow an inspection of the subgrade.
  • Prior to sealing of carriageways or footpaths. To allow inspection of the basecourse surface.
  • After sealing of carriageways, access ways or footpaths.  This Inspection may be undertaken as part of the S224c sign off process.
  • Practical Completion. To allow inspection of all completed works. This may be undertaken as part of the 224 sign off process.

Water:

  • Prior to back filling of any water mains.
  • Pressure testing of mains. Pressure tests must be undertaken by a qualified and experienced person and independently witnessed.
  • Chlorination of mains. Chlorination must be undertaken by a qualified and experienced person within the guidelines of SDC Standard Operating Procedure WSP005.

Sewer:

  • Prior to connect a new lateral to a pressure sewer system.