2 Renmark to border LAP area assessment - EPA - Sa.gov.au

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River Murray and Lower Lakes catchment risk assessment for water quality: Results and management options Diffuse runoff from agricultural land The impact on river water quality of diffuse runoff of pollutants (eg turbidity, pesticides, nutrients—total P) during rainfall events was generally not assessed as part of this study (unless specific information on a particular site/land use was obtained). This impact requires further research as it may make a significant contribution to total contaminant loads entering the river (although it is noted that rainfall and runoff is relatively low in many areas along the river, approximately 250–400 mm rainfall per annum on average). The methods of controlling diffuse source pollution typically relate to ensuring sustainable land management practices and creation or maintenance of existing vegetation buffers between agricultural land and waterways. General recommendation 4 Catchment water quality modelling could be undertaken to assess influence of diffuse runoff (possibly combined with the proposed river water quality model). 250 Status of implementation: Not started General recommendation 5 LAP and/or other local groups could be funded to provide incentives for revegetation and creation of buffer strips for mitigation of diffuse runoff in priority areas. Status of implementation: Not started Cause and effect relationships on aquatic ecosystem health There was a lack of accessible and detailed information summarising the impacts of water quality hazards on aquatic ecosystem health for the River Murray in South Australia. However, macroinvertebrate data is regularly collected and the EPA has produced a summary of this information for the river and eastern Mount Lofty ranges. General recommendation 6 A review and update of current macro-invertebrate and other monitoring data should be carried out. Links to the risk assessment project’s results and water quality data should be explored. Development and planning issues Status of implementation: Not started Several development and planning issues arose out of both the risk assessment consultation and the EPA and DWLBC’s experience in assessing referred development applications in the area. Not only are river councils inconsistent in policy and its application, so are prescribed bodies that are referred development proposals for advice or direction. The increasing development pressure in these areas make
River Murray and Lower Lakes catchment risk assessment for water quality: Results and management options this situation very concerning. It is also confusing for developers seeking to determine agency positions and requirements before lodging development applications. Planning SA’s Better Development Plan initiative seeks to align development plan policy across the State. The EPA is developing position papers for river developments. DWLBC is currently developing River Murray Referral Assessment Policy and Neutral or Beneficial Effect Guidelines to establish a consistent policy framework for assessing referrals under the River Murray Act 2003, and to assist proponents when preparing an application. In addition, a working group chaired by Planning SA and comprising representatives from other agencies (eg EPA, DWLBC, DEH, DTEI), is developing a River Murray Marina Strategy (see Management Option 14 above). General recommendation 7 Integrated and consistent planning policies and guidelines should continue to be developed by councils and agencies (eg Planning SA, EPA, DWLBC) for the River Murray and Lower Lakes region. A whole of river Plan Amendment Report may be required in the future. Status of implementation: Started The River Murray Water Protection Area (proclaimed under the Environment Protection Act) does not include a significant area of the Coorong (southern half) and Lower Lakes (eg Goolwa, Milang area), which is thus outside EPA direction over development. General recommendation 8 The EPA should consult relevant councils and agencies (eg DWLBC, SAMDB NRMB) and pursue a regulation change to revise the boundary of the River Murray Water Protection Area (proclaimed under the Environment Protection Act) to include the entire Lower Lakes and Coorong area. Compliance and education on water quality issues Status of implementation: Preliminary planning underway by EPA Community consultation in the various LAP areas raised concerns about ‘no agency presence on the river’. A recent BIASA survey also reported concerns about apparent inappropriate or illegal activities along the river (Glen Jones, BIASA president, pers comm 2006). While enforcement is often seen by agencies as a last resort (unless for serious breaches of legislation) the lack of a presence is a risk to efforts to improve water quality. General recommendation 9 Inter- and intra-agency investigation of whether more resources are required to enhance the current capabilities of agencies (eg EPA, DWLBC) dealing with River Murray compliance issues. Possible inter-agency integration of compliance capabilities should be also considered. Status of implementation: Not started 251
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E N V I R O N M E N T P R O T E C T
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The River Murray and Lower Lakes ca
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6 Mannum to Wellington LAP area ass
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Table 6.5 Frequency of risk to recr
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Figure 7.2 Example of hazard to wat
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Roz Becker, Riverland Tourism Assoc
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Abbreviations 10 ADWG Australian Dr
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Executive Summary The River Murray
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River Murray and Lower Lakes catchm
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Current and potential future option
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2 Renmark to border LAP area assessment - EPA - Sa.gov.au

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