wide-spread and long term impacts, not having strong existing regulatory controls and likely to pose a high risk to multiple segments of the environment if they are not implemented. Table 3.1: High priority risks to beneficial values provided by Victorian waters. Risk (threatening activities and Relevant SEPP (Waters) associated stressors) segments Catchment inflows from diffuse All sources (nutrients, sediments and toxicants) Stormwater discharges (nutrients, All sediments, toxicants) Wastewater discharges (nutrients, Port Phillip Bay, localised inland toxicants, pathogens) waters, some open coast locations, groundwater Water resource use (altered water Inland waters, estuaries, regimes, salinity, algal blooms) groundwater Climate change exacerbating the All above risks Table 3.2: Widespread – criteria to prioritise an activity based on whether it has widespread or local impacts Mostly Localised Moderately Local impacts Impacts, Very Common Very Widespread Impacts Widespread Impacts Activity Action influences an Action influences an Action influences Action influences common and activity that only has activity that has common and widespread activity that affects mostly localised localised impacts on widespread activity multiple water types (e.g., a impacts and is only one to two water types that impacts only one combination of two or more of moderately but does not have a water type but all inland waters, estuarine waters widespread/common strong influence on segments of that marine waters, groundwater, and remote segments. water type are likely segments) AND activity has Activities are common to be impacted, and significant effects on remote so have a cumulative with significant segments (e.g. activity occurs in impact impacts on remote waterways but impacts marine segments segments) Table 3.3: Time-bound – criteria to prioritise an activity based on whether managing it’s impacts is required during discrete time periods and requires long term management. Mostly discrete with Discrete/Infrequent Discrete/Frequent occasional long term Long term ongoing management required
wide-spread and long term impacts, not having strong existing regulatory controls and likely to pose a high risk to multiple segments of the environment if they are not implemented. Table 3.1: High priority risks to beneficial values provided by Victorian waters. Risk (threatening activities and associated stressors) Relevant SEPP (Waters) segments Catchment inflows from diffuse sources (nutrients, sediments and toxicants) All Stormwater discharges (nutrients, sediments, toxicants) All Wastewater discharges (nutrients, toxicants, pathogens) Port Phillip Bay, localised inland waters, some open coast locations, groundwater Water resource use (altered water regimes, salinity, algal blooms) Inland waters, estuaries, groundwater Climate change exacerbating the above risks All Table 3.2: Widespread – criteria to prioritise an activity based on whether it has widespread or local impacts Local impacts Mostly Localised Impacts, Very Common Activity Moderately Widespread Impacts Very Widespread Impacts Action influences an activity that only has mostly localised impacts and is only moderately widespread/common Action influences an activity that has localised impacts on one to two water types but does not have a strong influence on remote segments. Activities are common so have a cumulative impact Action influences common and widespread activity that impacts only one water type but all segments of that water type are likely to be impacted, and with significant impacts on remote segments Action influences common and widespread activity that affects multiple water types (e.g., a combination of two or more of inland waters, estuarine waters marine waters, groundwater, and segments) AND activity has significant effects on remote segments (e.g. activity occurs in waterways but impacts marine segments) Table 3.3: Time-bound – criteria to prioritise an activity based on whether managing it’s impacts is required during discrete time periods and requires long term management. Discrete/Infrequent Discrete/Frequent Mostly discrete with occasional long term management required Long term ongoing
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