Normanby River Basin Environmental Values and Water Quality Objectives
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Environmental Protection (Water and Wetland Biodiversity) Policy 2019 Normanby River Basin Environmental Values and Water Quality Objectives Basin 105, including all surface waters of Normanby River Basin and adjacent coastal waters Prepared by: Environmental Policy and Planning Division, Department of Environment and Science © State of Queensland, 2020 The Queensland Government supports and encourages the dissemination and exchange of its information. The copyright in this publication is licensed under a Creative Commons Attribution 3.0 Australia (CC BY) licence. Under this licence you are free, without having to seek our permission, to use this publication in accordance with the licence terms. You must keep intact the copyright notice and attribute the State of Queensland as the source of the publication. For more information on this licence, visit http://creativecommons.org/licenses/by/4.0/au/deed.en If you need to access this document in a language other than English, please call the Translating and Interpreting Service (TIS National) on 131 450 and ask them to telephone Library Services on +61 7 3170 5470. This publication can be made available in an alternative format (e.g. large print or audiotape) on request for people with vision impairment; phone +61 7 3170 5470 or email [email protected]. October 2020 Main parts of this document and what they contain • Waters covered by this document Introduction • Key terms/how to use document (section 1) • Links to water quality plans (maps) • Mapping/water type information • Further contact details • Amendment provisions • Source of EVs for this document Environmental values • Any applicable management goals (EVs—section 2) to support EVs • Table(s) of EVs by waterway o aquatic ecosystem o human use • • Guidance on use Water quality objectives • WQOs in this document, for (WQOs—sections 3, 4) o aquatic ecosystem EV o human use EVs • Vegetation management and planning provisions • List of sources relevant in considering Ways to improve water ways to improve water quality quality (section 5) • Definitions of key terms including a Dictionary table of all environmental values (section 6) • Accompanying maps that show Accompanying water quality water types, levels of protection and plans (maps) other information contained in this document i Contents Main parts of this document and what they contain ................................................................................................ i List of tables ................................................................................................................................................................ ii 1 Introduction ....................................................................................................................................................... 1 1.1 Purpose ......................................................................................................................................................... 1 1.2 Queensland waters to which this document applies ..................................................................................... 1 1.3 Great Barrier Reef end-of-basin load objectives .......................................................................................... 2 1.4 Guidance on using this document ................................................................................................................ 2 1.5 Information about mapped areas and boundaries ........................................................................................ 4 1.6 Water types and basis for boundaries .......................................................................................................... 4 1.7 Matters for amendment ................................................................................................................................. 5 2 Environmental values and management goals ............................................................................................. 7 2.1 Environmental values.................................................................................................................................... 7 2.2 Management goals to support environmental values ................................................................................... 7 3 Water quality objectives to protect aquatic ecosystem environmental values ....................................... 13 3.1 Aquatic ecosystem water quality objectives ............................................................................................... 13 3.2 Vegetation management and planning provisions ...................................................................................... 43 4 Water quality objectives for human use environmental values (EVs) ...................................................... 47 4.1 Human use EVs water quality objectives.................................................................................................... 47 4.2 Drinking water EV water quality objectives ................................................................................................. 50 4.3 Aquaculture EV water quality objectives..................................................................................................... 51 4.4 Irrigation EV water quality objectives .......................................................................................................... 54 4.5 Stock watering EV water quality objectives ................................................................................................ 56 4.6 Recreation EV water quality objectives - cyanobacteria ............................................................................. 58 5 Ways to improve water quality ...................................................................................................................... 60 6 Dictionary ........................................................................................................................................................ 61 List of tables Table 1 Environmental values: Normanby River Basin and adjacent coastal waters .................................................. 9 Table 2 Aquatic ecosystem water quality objectives – freshwater base and event flows physico-chemical (nutrients, algal, water clarity, etc.).......................................................................................................................... 16 Table 3 Aquatic ecosystem water quality objectives – freshwaters: other ions and related indicators (baseflow except where noted) ............................................................................................................................... 29 Table 4 Aquatic ecosystem water quality objectives: estuarine, coastal and marine waters ..................................... 33 Table 5 Human use EVs water quality objectives ...................................................................................................... 47 Table 6 Drinking water EV: Priority water quality objectives for drinking water supply in the vicinity of off-takes, including groundwater, before treatment ............................................................................................... 50 Table 7 Aquaculture EV: General water quality objectives for tropical aquaculture ................................................... 51 ii Table 8 Aquaculture EV: Water quality objectives for optimal growth of particular freshwater species ..................... 52 Table 9 Aquaculture EV: Water quality objectives for optimal growth of particular marine species .......................... 53 Table 10 Irrigation EV: Water quality objectives for thermotolerant (faecal) coliforms in irrigation waters used for food and non-food crops1 ....................................................................................................................... 54 Table 11 Irrigation EV: Water quality objectives for heavy metals and metalloids in agricultural irrigation water— soil cumulative contamination loading limit (CCL), long-term trigger value (LTV) and short-term trigger value (STV)1 ........................................................................................................................................... 55 Table 12 Stock watering EV: Water quality objectives for tolerances of livestock to salinity, as total dissolved solids, in drinking water1 .................................................................................................................................... 56 Table 13 Stock watering EV: Water quality objectives (low risk trigger values) for heavy metals and metalloids in livestock drinking water .......................................................................................................................... 57 Table 14 Recreational waters: Alert levels and corresponding actions for management of cyanobacteria ............... 58 Table 15 Environmental values that can be identified for protection .......................................................................... 62 iii Normanby River Basin Environmental Values and Water Quality Objectives 1 Introduction This document is made pursuant to the provisions of the Environmental Protection (Water and Wetland Biodiversity) Policy 2019 (EPP [Water and Wetland Biodiversity]), which is subordinate legislation under the Environmental Protection Act 1994. The EPP (Water and Wetland Biodiversity) provides a framework for: • identifying environmental values (EVs) for Queensland waters and wetlands • identifying