D.—L

TABLE No. 6— continued. IRRIGATION AND WATER-SUPPLY— continued. Schedule of Schemes under Investigation.

22

Main Canals j j j }7 Xn pnditurp ! River Discharge Average Rainfall Tin infill Area Length of Length of, p t Scheme. Source of Supply. j Discharge (Maximum), from -,go 7 ' commanded Main | Distribu- i t Remarks. | (Minimum). as per i Records available. (Gross). Canal, i taries. 1938 * ' Design. Canterbury — j Cu ° MUes "L £ r Investigations into the feasibility of irrigation in Barrhill .. .. | Rangitata River .. J'?™ osn 99 nn Q9 S7 fn'nnn " 1 [ the Canterbury Province have been in hand Oran .. .. Rangitata River .. 1,300 250 22-00 32-H7 40,000 .. .. I I since January, 1934. Investigations include Valetta-Tmwald .. Rangitata River .. 1,300 450 23 29-10 84,000* the following phenomena, viz. : Soil moisture, Investigations of other | .. .. .. .. .. .. : .. .. mechanical analysis of soil, depth of ground proposed schemes j I water, evaporation, rainfall, and river-flow. Marlborough — I Investigation of pro- j .. .. .. .. 16-06 .. .. .. 3,385 Comprehensive investigation surveys of schemes posed schemes for the Wairau Valley and parts of the Wairau Plains are in hand. Otago Central — | j Cromwell Flat and Low- ; Hydro-electric develop- 29 .. 20-65 19-34 .. .. .. 3,774 Hydro-electric scheme under investigation, burn (Roaring Meg) ment of Roaring Meg (Roaring (Luggate) Power would be available for pumping irrigaand pumping from Meg) tion supplies to 8,000 acres in Upper Clutha Clutha and Kawarau Valley. Portion of this area could be supplied Rivers j from Hawea River power and pumping scheme. Maniototo (Upper Taieri) Taieri River and storage j 25 500 16-87 16*59 100,000 60 .. 16,734 Modified scheme for complete irrigation of dam (Waipiata) I 5,000 acres is possible without storage, or for reasonable partial irrigation of 15,000 acres. Surveys practically complete for scheme to irrigate 100,000 acres. Scandinavian .. Tributaries of Manuheri- .. 20 30-66 .. .. .. .. .. For lands about St. Bathan's. To bear £15,000 kia River (St. Bathan's) towards cost of Falls dam, Upper Manuherikia scheme. Irrigable area, 3,000 acres. Upper Clutha Valley (in- Hawea and Clutha Rivers 580 .. 21-83 19-77 .. .. .. .. Investigations have been made for a hydroeluding Hawea Flats) (pumping) with power- (Hawea R.) (Hawea Flat, Lug- electric power development at the outlet of station at outlet of 3,000 gate, and Tarras) Lake Hawea. Sufficient power would be Lake Hawea (Clutha R.) available to pump water from the Hawea and Clutha Rivers to 13,700 acres in the Upper Clutha Valley. Upper Manuherikia (ex- Manuherikia River and 36 .. 20-37 21-47 16,000 58 60 6,553 Surveys and investigations have been made for tension of Omakau storage dam at Manu- (at dam- (Clyde, Ophir, and the extension of the Omakau scheme (now Scheme) herikia Falls site) Blackstone Hill) under construction) to supply lands between Tiger Hill and Clyde. Irrigable area, 12,000 acres. Investigation of proposed .. .. .. .. | .. .. j 2,145 Includes the reading of river and rain gauges. schemes Total: Schemes under investigation .. .. .. .. .. .. .. 56,345 Grand total .. .. .. .. .. .. .. .. .. 1,800,012 * Inoiudes expenditure from Public Works Fund, Consolidated Fund, Unemployment Fund; also administration and loan charges.