McLean, J.D. 1977 Lower Waitaki power development: engineering geology of proposed canal route, Waitaki to Black Point. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 273 17 p.
Abstract: It is proposed to utilise the 209m head of the Waitaki River between the Waitaki Dam and the coast by a series of ten low-head stations linked by a canal on the right bank of the river (Natusch 1974). The upper six of these developing a total head of 117m are to be located between Waitaki Power Station and Black Point, a distance of about 36 kilometers (sheet 1). Site investigation work was initiated in 1967 and has been largely concerned with revealing the underlying geological conditions on this part of the canal route. This report describes the various geological units thought to occur along the canal route and outlines their own or inferred engineering properties. A hypothetical geological plan and section is included (sheets 1 and 3). The local groundwater is not discussed in this report. It is the subject of a separate study presently being carried out by the Ministry of Works and Development. (auth)