Burrum, Gregory, Isis, Cherwell and Elliott Rivers Environmental Values and Water Quality Objectives Basin No
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Environmental Protection (Water) Policy 2009 Burrum, Gregory, Isis, Cherwell and Elliott Rivers environmental values and water quality objectives Basin No. 137 July 2010 Prepared by: Water Quality & Ecosystem Health Policy Unit Department of Environment and Resource Management © State of Queensland (Department of Environment and Resource Management) 2010 This publication is available in alternative formats (including large print and audiotape) on request. Contact (07) 322 48412 or email <[email protected]> July 2010 Document Ref Number Main parts of this document and what they contain • Scope of waters covered Introduction • Key terms / how to use document (section 1) • Links to WQ plan (map) • Mapping / water type information • Further contact details • Amendment provisions • Source of EVs for this document Environmental Values • Table of EVs by waterway (EVs - section 2) - aquatic ecosystem - human use • Any applicable management goals to support EVs • How to establish WQOs to protect Water Quality Objectives all selected EVs (WQOs - section 3) • WQOs in this document, for - aquatic ecosystem EV - human use EVs • List of plans, reports etc containing Ways to improve management actions relevant to the water quality waterways in this area (section 4) • Definitions of key terms including an Dictionary explanation table of all (section 5) environmental values • An accompanying map that shows Accompanying WQ Plan water types, levels of protection and (map) other information contained in this document iii CONTENTS 1 INTRODUCTION ............................................................................................................................. 1 1.1 WATERS TO WHICH THIS DOCUMENT APPLIES .............................................................................. 1 1.2 GUIDANCE ON USING THIS DOCUMENT ......................................................................................... 2 1.2.1 Key terms............................................................................................................................ 2 1.2.2 Main parts of this document................................................................................................ 4 1.2.3 Use of this document .......................................................................................................... 4 1.3 INFORMATION ABOUT MAPPED AREAS AND BOUNDARIES ............................................................... 4 1.4 WATER TYPES AND BASIS FOR BOUNDARIES ................................................................................ 5 1.4.1 Water types......................................................................................................................... 5 1.4.2 Water type boundaries........................................................................................................ 5 1.5 MATTERS FOR AMENDMENT ....................................................................................................... 6 2 ENVIRONMENTAL VALUES (EVS) ............................................................................................... 7 2.1 ENVIRONMENTAL VALUES .......................................................................................................... 7 2.2 MANAGEMENT GOALS TO SUPPORT EV S..................................................................................... 7 3 WATER QUALITY OBJECTIVES (WQOS) TO PROTECT ENVIRONMENTAL VALUES............ 9 3.1 WATER QUALITY OBJECTIVES (WQO S) TO PROTECT AQUATIC ECOSYSTEMS ............................... 10 3.1.1 Physico-chemical WQOs .................................................................................................. 10 3.1.2 Riparian WQOs................................................................................................................. 18 3.1.3 Stormwater design objectives........................................................................................... 18 3.2 WATER QUALITY OBJECTIVES (WQO S) FOR HUMAN USE EV S .................................................... 19 4 WAYS TO IMPROVE WATER QUALITY ..................................................................................... 29 5 DICTIONARY................................................................................................................................. 30 List of Tables Table 1 Environmental values (EVs) for Burrum, Gregory, Isis, Cherwell and Elliott River catchment waters ......................................................................................................................................................................8 Table 2 Water quality objectives to protect aquatic ecosystem environmental value (refer to Plan WQ1371 for location of waters) .........................................................................................................................11 Table 3 Water quality objectives to protect human use environmental values ...........................................19 Table 4 Primary contact recreation EV: Water quality objectives for management of cyanobacteria in contact recreation areas .....................................................................................................................................22 Table 5 Aquaculture EV: Water quality objectives for tropical aquaculture ................................................23 Table 6 Aquaculture EV: Water quality objectives for optimal growth of particular species in freshwater ................................................................................................................................................................................23 Table 7 Aquaculture EV: Water quality objectives for optimal growth of particular marine species ........24 Table 8 Irrigation EV: Water quality objectives for thermotolerant (faecal) coliforms in irrigation waters used for food and non-food crops .....................................................................................................................25 Table 9 Irrigation EV: Water quality objectives for heavy metals and metalloids in agricultural irrigation water – long-term trigger value (LTV), short-term trigger value (STV) and soil cumulative contamination loading limit (CCL) ...............................................................................................................................................26 Table 10 Stock watering EV: Water quality objectives for tolerances of livestock to total dissolved solids (salinity) in drinking water ........................................................................................................................27 Table 11 Stock watering EV: Water quality objectives (low risk trigger values) for heavy metals and metalloids in livestock drinking water ................................................................................................................27 Table 12 Drinking water EV: Priority water quality objectives for drinking water supply in the vicinity of off-takes, including groundwater, before treatment ........................................................................................28 Table 13 Suite of environmental values that can be chosen for protection ................................................31 iv Burrum, Gregory, Isis, Cherwell and Elliott Rivers environmental values and water quality objectives 1 Introduction This document is made pursuant to the provisions of the Environmental Protection (Water) Policy 2009 (the EPP [Water]), which is subordinate legislation under the Environmental Protection Act 1994 . The EPP (Water) provides a framework for: • identifying environmental values for Queensland waters, and deciding the water quality objectives to protect or enhance those environmental values; and • including the identified environmental values and water quality objectives under Schedule 1 of the EPP (Water). This document contains environmental values and water quality objectives for selected waters in catchments of the Burrum, Gregory, Isis, Cherwell and Elliott Rivers, Eli, O’Regan, Beelbi, Coonarr and Theodolite Creeks, northern parts of Great Sandy Strait, and all other Hervey Bay coastal rivers and creeks, and is listed under schedule 1 of the EPP (Water). 1.1 Waters to which this document applies This document applies to fresh and estuarine waters of the Burrum River, estuarine waters of the Gregory, Isis, and Cherwell Rivers, and lower estuarine/enclosed coastal waters of the Elliott River, Eli, O’Regan, Beelbi, Coonarr and Theodolite Creeks, northern parts of Great Sandy Strait, and all other Hervey Bay coastal rivers and creeks, as represented in the accompanying plan (WQ1371) 1. These waters fall within Queensland Basin 137 2. The geographical extent of waters addressed by this document is shown in plan WQ1371, and extends to cover: • all estuarine and freshwater reaches of the Burrum River (including all tributaries in the Burrum catchment); • estuarine waters of the Gregory, Isis, and Cherwell Rivers (including all estuarine or freshwater tributaries draining into these estuarine waters); • lower estuarine/enclosed coastal waters of the Elliott River, Eli, O’Regan, Beelbi, Coonarr and Theodolite Creeks and all other Hervey Bay coastal rivers and creeks (including all estuarine or freshwater tributaries draining into these lower estuarine/enclosed coastal waters); • the open coastal waters of Hervey Bay into which the above waters flow; • northern parts of Great Sandy Strait; • tidal canals, constructed estuaries, marinas and boat harbours; •