Wairau/Awatere Resource Management Plan Table P1 - Summary of Guidelines for Irrigation Water Quality Parameter Guideline Comment (mg/L, unless otherwise stated) Uranium 0.01 Vanadium 0.1 Zinc 2.0 1 mg/L is recommended for sandy soil below pH 6 Pesticides Insecticides - No guidelines recommended Herbicides Table P9 Radioactivity Gross Alpha 0.1 Bq/L. Gross Beta 0.1 Bq/L * Higher maximum concentrations may be recommended in neutral to alkaline soils. Table P2 - Chloride Tolerance of Fruit and Woody Crops by Root Uptake Rootstocks Chloride in Cultivars Chloride in Irrigation Irrigation Water Water (mg/L) (mg/L) Grapes 710-960 Boysenberry 250 Stone-fruits (peaches, plums etc) 180-600 Blackberry Strawberries 110-180 Raspberry Sources: Westcot and Ayers (1984); CCREM (1991) Table P3 - Chloride Concentrations in Irrigation Water causing Foliar Damage Sensitivity Chloride Affected Crop (mg/L) Sensitive <178 Almond, Apricot, Plum Moderately sensitive 178-355 Grape, Pepper, Potato, Tomato Moderately Tolerant 355-710 Alfalfa, Barley, Corn, Cucumber Tolerant >710 Cauliflower, Cotton, Safflower, Sesame, Sorghum, Sugar-beet, Sunflower Sources: Westcot and Ayers (1984) App P - 2