D.-l.

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

22

Main Canals I Kxnpnriitiirp River Discharge j Average Rainfall Rainfall Area Length of Length of " * Scheme. Source of Supply. Discharge (Maximum),' from iqqq * commanded Main Distribu- t \ ]nr „K Remarks. (Minimum). as per Records available. ' (Gross). Canal. taries. iqqq + ' Design. | i iy,5y,t Canterbury J Cusec* Cusecs. Inches Inches Acres_ Miles. Miles. £ Investigations into the feasibility of irrigation in ♦Barrhill .. .. Rangitata River ... 1,300 250 23-00 50-41 o3,000* .. .. f the Canterbury Province have been in hand T . " Rangitata River .. j • ( 2o0 ?, , _ If fi'nnn* "" " I'M. fijuJ since Januar y> 1934 - Investigations include *Valetta-Tinwald .. Rangitata River .. 1,300 450 23 45-23 84,000* .. .. f24, the foUowing phenomena, viz. : Soil moisture, Investigations of other j .. j .. .. .. .. .. .. i mechanical analysis of soil, depth of ground proposed schemes J I water , evaporation, rainfall, and river-flow. Marlborough — Investigation of pro- ! .. .. .. .. 16-06 .. .. .. 5,253 Comprehensive investigation surveys of schemes posed schemes for the Wairau Valley and parts of the Wairau Plains are in hand. Otago Central — Cromwell Flat and Low- Hydro-electric develop- 29 .. 20-70 21-71 .. .. .. 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 from Hawea River power and pumping I scheme. Maniototo (Upper Taieri) Taieri River and storage 25 500 16-92 18-01 100,000 60 .. 16,734 Modified scheme for complete irrigation of dam (Waipiata) 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- .. j 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. ; I Upper Clutha Valley (in- Hawea and Clutha Rivers i 580 .. 21-90 23-11 .. .. .. .. 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 j 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 i 36 .. 21-90 23-11 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 .. I .. .. .. .. .. .. 2,254 Includes the reading of river and rain gauges. schemes Total: Schemes under investigation .. .. .. .. .. .. .. 59,252 Grand total .. .. .. .. .. .. .. .. .. 1,947,240 % Includes expenditure from Public Works Fund, Consolidated Fund, Unemployment Fund; also administration and loan charges.