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?.i'i'~)>" ''>''',:'''~~''</ri',~'fEb;,jo'F';:~';:,,!iifi,S,;~;,,~;:::li:'':,';>'>'/,;>:",\'.:"., ,',:,,> UVU0.i~ , i j , J. ,:; " j.,; ~ '. M ifl ,;;.. .....~:l j.Aj 7i ;;(q t~). ';.;.\~ s.~ ~1 ... j '~ij t'};",;7.0 :i-~~1 1~~ ;;~'1 ":f;,:~ ...:~<~ '.. -'I ~ .:.f~~~ ~3:1 water rights and limit how much water a user can receive in the future. This procedure is taKing place at the present time so the exact amount of water saved is not known. However, it is estimated that it may be over 12.3 million m' (10,000 acre-feet) per year. Measures to increase the efficiency of the project delivery system in future years are continually being evaluated. One such measure is the re-use of drain water by pumping water from a project drain into a distribution canal. Water quality is of a signif icant concern for initiating this measure. Water samples have been taken of ,the drain water at one proposed pump location. Chemical analysis of the samples show that the drain water is of sufficient water quality for irrigation purposes if some dilution occurs when it enters the irrigation delivery system. Re-use of drain water could save 7.4 million m' (6,000 acre-feet) of water per year; The requirement to conserve water and increase efficiency of the Newlands Project irrigation delivery system has now been in effect for three years. Actions taken during the first two years increased the efficiency of 'the project by approximately 6%. The calculated efficiency for the 1989 irrigation season was 61t. This increase resulted in a water savings of approximately 24.7 million m' (20,000 acre-feet) in 1989. The efficiency for the 1990 irrigation season was calculated at only about 60t, however this nUEber i~ not truly representative of what the savings actually were because the drought of 1990 reduced deliveries on the Newlands project to, less than 65% of normal supply. This reduced delivery to the headgates skews the efficiency number so that it cannot be compared with the 1989 number. Efforts during 1990 resulted in significant water savings. This water saved will become available for other demands and will benefit the endangered cui-ui fish. Another benefit that the ~ewlands Project water users saw during the 1990 irrigation 'season was that the' increased efficiency improved availability of 'water during the drought year, By, increasing the efficiency, the district was, able to deliver an additional 18.5 million m' (15,000 acre-feet) of water to the users' in 1990 that would have otherwise been lost in the delivery system. This provides a great incentive for the irrigation district to conserve water. The efficiency of the Newlands Project irrigation delivery system is being improved as required and benefits are accruing to both the endangered.species of fish and the water users. :;~.;.;~ ;:f..~ '. --~" :~.':'.; '.;~:':.i ..::J. , ',-~ ' :,,-~, ;:'.;~ .. ."::'." :;..:': ':.~,) 9 , :'~!