2016-02-02 P&O Committee - Item 3 - Attachment 4 - Mary River Environmental Values and Water Quality Objectives

            Mary River environmental values and water quality objectives



            Table 10 Stock watering EV: Water quality objectives for tolerances of livestock to total dissolved
                                               1
            solids (salinity) in drinking water

            Livestock                                             Total dissolved solids (TDS) (mg/L)

                                 No adverse               Animals may have initial reluctance to               Loss of production and
                                 effects on animals       drink or there may be some scouring,                 decline in animal condition
                                 expected.                but stock should adapt without loss of               and health would be
                                                          production                                           expected. Stock may
                                                                                                               tolerate these levels for
                                                                                                               short periods if introduced
                                                                                                               gradually

            Beef cattle          0–4000                   4000–5000                                            5000–10,000
            Dairy cattle         0–2500                   2500–4000                                            4000–7000
                                                                                                                            2
            Sheep                0–5000                   5000–10,000                                          10,000–13,000
            Horses               0–4000                   4000–6000                                            6000–7000
            Pigs                 0–4000                   4000–6000                                            6000–8000
            Poultry              0–2000                   2000–3000                                            3000–4000
            Source: AWQG (2000), Volume 1, Section 4.3.3.5, Table 4.3.1

            Notes:
            1. From ANZECC (1992), adapted to incorporate more recent information
            2. Sheep on lush green feed may tolerate up to 13,000 mg/L TDS without loss of condition or production

            Table 11 Stock watering EV: Water quality objectives (low risk trigger values) for heavy metals and
            metalloids in livestock drinking water
                                                                                    1, 2
            Metal or metalloid                          Trigger value (low risk)
                                                        (mg/L)
            Aluminium                                   5
                                                                    3
            Arsenic                                     0.5 (up to 5 )
            Beryllium                                   ND
            Boron                                       5
            Cadmium                                     0.01
            Chromium                                    1
            Cobalt                                      1
            Copper                                      0.4 (sheep), 1 (cattle), 5 (pigs), 5 (poultry)
            Fluoride                                                  2
            Iron                                                      not sufficiently toxic
            Lead                                                      0.1
            Manganese                                                 not sufficiently toxic
            Mercury                                                   0.002
            Molybdenum                                                0.15
            Nickel                                                    1
            Selenium                                                  0.02
            Uranium                                                   0.2
            Vanadium                                                  ND
            Zinc                                                      20
            Source: AWQG (2000), Volume 1, Section 4.3.4, Table 4.3.2

            Notes:
            1. Higher concentrations may be tolerated in some situations (further details provided in AWQG [2000] Volume 3, Section 9.3.5)
            2. ND = not determined, insufficient background data to calculate
            3. May be tolerated if not provided as a food additive and natural levels in the diet are low.




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Document Set ID: 20002123
Version: 1, Version Date: 21/12/2015