Muck

Spoils or removal of same.

Multiple Ring Brick Sewer

A brick sewer that consists of three or more layers of bricks.

Multistaged New Installation

To plan and undertake projects with regard to a phased/milestone schedule.

N-Value

The number of blows per foot required to drive a standard penetration test (SPT) soil sampler into the ground during geotechnical exploration. The N-value is often used to estimate in situ consistency of clays and silts and relative density of sands.

Narrow Trenching

Method of excavation of a trench up to 100mm wider than the outside diameter of the service to be installed, usually employing either a rockwheel or chain type trencher.