Estuary Entrance Management Support System
Contents
1. ne PRA 1 sis e NEN ko sim ne am e mea x The Estuary List screen displays many Victorian estuaries Estuaries can be added to the bottom of the list The list can be sorted using any field For example to sort estuaries by CMA click on a CMA in the list then right click and choose sort ascending The most recent entry of mouth status EWL and date is also displayed on this page see Step 15 Information about the environmental socioeconomic and cultural assets of an estuary is stored in the description section of the EEMSS Click Descriptions Estuarine Button to select OZESTUARY Estuary Name CMA Status Water Level Date th ee St ua ry Ho EVVL m bli 628 Aire River Corangamte Closed 35 1012005 Status Descriptions emsset Scores Thr Scores descriptions section nessa z status oe one asst scores m Sores Ban nser e me T T sus ee m s eursies tet fam T TT faa asset Scares J saus tsemo l asst Scares m Sores en T TASA im Soares 0 fai J stats asset Scares m s 1 stetws ast Soares T T2. onon a id Set Ass Scares Te Seares 1034 Spring Creek Cronk a status Dercretions asset scores Tir Scores 11 82 02 7 T T ee a 808 nt Taun e oso Rater rsa ooo penn L re manev T mso 55505 515525 1 THT Al Example 1 Assigning asset score to EVCs Asset Scores Aire River Asset Scores evc Mais El Fiora Mil Fishing MJetiesiRamps Recreation B AgriLand screen appears Mi Stormwater Septics m Infrastrucure Human Health Hi Indig Culture Mi Cultural Heritage Referentes Simply click on each tab to go to EVC desired asset Then go to score Regional Conservation fi e l d to e nte r Status Source Date EVC Study scores Some scores like those for EVCs birds fish amp roads are automatically entered for you and are set by the administrator
3. select OK Not all recreational assets require an EWL For those assets that do this information is used only to guide the threat assessment Therefore all the relevant information from Appendix B can be entered here or a summary such as the range of water levels 11 2 Assets scores Once the data assets have been entered at the description phase they are then scored Please note that you cannot add new assets here Only assets that you want to appear on the impact assessment report have to be scored For further information about assigning asset and threat scores refer to Section 11 4 Community consultation and also relevant sections on each asset in Part 2 of the report ESTUARY LIST oe Estuarine OZE Haana Hame CHA Slalu Water Level ALL EWWL mil ET ETT m Go to the Estuary zi renee TY zi os il List Click on a F s ss T Ou ST sl ana n OO Te Scores 00 ess Asou ian Button me fe A 1 m sc si g32 pelibrana Ave ao E r Reet ve EYN n ane a esas n ER eT a Ka ao
4. this section Refer to Critical AHD form Appendix G for guidance Critical Data enter Critical EWL m Do yo a A Vi saqi oo User selects the EVC as Y above and then enters EWL in metres in the field directiy Yk to the right User can view further information in the Lookups by clicking the magnifying glass wherever it appears A screen appears with the Lookup table that can be viewed by the user On the EVC page further information can be also be vievved by double clicking on a cell in the Full Description column The user may add to the Lookup table by scrolling to the bottom of the screen and entering data besides the new record asterix However this list is pre determined by the project team and should only be edited following careful consultation with the team Description Estuarine Wetland Defining characteristic Moderate height rushisedge wetland vegetation variously with component of small halophytic herbs occurring on estuarine flats Habitat Anaerobic peat rich mud of estuarine flats inundation regimes variously sustained if drainage line outlet blocked twice daily with tides if breached EVC looku p ta ble Brackish Sedgeland Defining characteristics Sedgeland dominated by salt tolerant sedges in association with low grassy herbaceous ground layer and a halophytic component d isplays a the Habitat Mostly at least marg
5. MMM d 1yU Iuy doj owouy ne woo ejeplIq mAAy dy UBUOJIIA JO SEHV 450 OU JO BIJENSAY SPl1q S SI 5010005 pilg sp syun sjlejap uoneuojuj 1 Jasse JO S9DINOS Xipuaddy Alenj so y jou Sulu do Joj poubisse 3109S 18 S1U A jenos JOfew ou Ose Ajjenuoj0d im yeu Seep Aue Ainu pi sojep jueuoduj jo sayep Ajuep esnou9oJeM ejeq s inos M UBLOJOIA ou 1e QE EPAB SI e ep aGJEYOsIP JOA UBLO OLA Eep eouojsiy Guisn xdse owou eleploj em ues Hulusdo UINOW JeAu 61 1 1 MOJJUI DIANOU B JEPL9 JEMIIA MAA py AHO H UC aG1EYOISIP JOA WN WIUIN WNWIUIN AVO 3 ELO INN NEO IA Ap MMW dy sateyy eulbuoqy 1E jqeere oue Sirejep 12ejuo9 Sejis jueyoduij snou bipui SJIOUNOD JEdIOIUNW 620 1283002 OS V AJOJUSAU ne aob o1n abe Wey ueno Jajsiboy obey UBLoiA SOS obejuouy emjno sjiounoo ediorunu 200 wou ojqejreAe 51 5 o ab1reyosip s d id 15 JO Jeu s did Ja EMUO S JO OU ZIS pue uoneJo7 14 004 0 2 8801 8100 80992 esq eseqejeq lenedso s 390 8682407887222 46 01 99 2 y u no u ejqgeji
6. land to previous productivity following inundation b No damage to fences 4 No loss of access to other high land 3 Moderate 1 All low land is inundated and less than 2096 of marginal land is inundated 2 Mitigation of losses requires minimal extra inputs eg stock can be moved to other land and less than 1096 of feed requirements need to be bought in 3 a Minimal input required to return land to previous productivity eg weeds sprayed with no extra seed required b Debris to be removed to maintain fence integrity 4 Access is restricted to less than 5 of the rest of the farming land 4 Major 1 All low land is inundated and 20 50 of intermediate land is inundated 2 Stock can be moved to non inundated land but feeding out is difficult 10 50 of feed requirements need to be brought in 3 a Pasture renovation is achieved through drilling of appropriate seed b Some fence rewiring required 4 Access to 5 10 of the rest of the enterprise is affected 5 Severe 1 All low land inundated and greater then 50 of intermediate land inundated 2 No suitable land is available for hand feeding and greater than 50 of stock requirements need to be brought in 3 a All land needs to be fully renovated with cultivation and lime or gypsum treatment to address soil quality issues b fences need to be replaced 4 Access is lost to greater than 20 of the farm area of EEMSS Threat modifiers Duration of inundation DI The effect of durati
7. sans m s femine AAA SA assar scores m Soares Eureretia ver status im sore T T sas asset sores asset Snes ers J stats asset Scares tase Being Creek AAA T T sans pesml ast Scares Tr Scores A TSS f sas ast Scores Tv Sores Tambonnm e TT stetws i stats Act Scares m Sores rs ara river an stat psenseel assess is click on the folder A at Scares imscxes e Kya i TOTAL icon to close section Asset Descriptions Aire River pe Description Estuary Management M ev Mi Recreation B Agr Land W Stormwater Septics Estuary Name Aire River Estuary 629 Click tabs to enter separate screens for environmental Government Polic 2 SOCIOECONOMIC Heritage River comments A managing authority of a heritage river area must take all a reasonable steps to ensure tha
8. the loss of utilisation of the assets compared to not having any inundation for the period in question This requires an assessment of the potential production from that area of land Potential production will be greater on some areas of land than others For the use in the threat value assessment land areas will be assigned one of three classifications 1 HIGH LAND Land that is not affected by inundation at all This classification will be assigned to give an assessment of the proportion of the farming enterprise affected by inundation 2 INTERMEDIATE LAND Land that is only inundated for short periods of time These are the higher areas that are the last areas inundated and the first to have the water recede These areas will normally have a capability for production of pasture or crops These areas of land will be the most affected by decisions in estuary management 3 LOW LAND These land areas will have minimal productivity due to constant inundation These are areas that normally have minimal productive output and are only seen as opportunistic use areas Plant species that survive in these areas are of minimal productive use Threat attributes and scores Threat score Threat level Threat attributes 2 Minor Less than 50 of low land inundated 2 Loss can be mitigated with minimal extra inputs eg stock can be moved to other land and no extra bought in feed is required 3 a No renovation or extra input required to revert
9. 1 MHz or faster processor 256 MB RAM minimum The following settings can be adjusted via the control panel gt display settings Display Settings 1024 x 768 pixels Colour Settings High Colour 16 bit or True Colour 32 bit Loading the EEMSS onto your PC To open the EEMSS database insert the CD and then double click the EEMSS mdb file as you would any Microsoft application such as Word or Excel 11 Implementing the EEMSS There are three major phases involved in implementing EEMSS as a decision making tool for a particular estuary Data acquisition amp input phase This involves e Identifying assets e scoring environmental assets e scoring threats to environmental assets Information needs to be collected about all assets that are potentially impacted by the opening decision Forms are provided in the EEMSS to guide collection of this data Community consultation phase This is an essential step in the application of the EEMSS as it is the stage at which community acceptance and adoption of the EEMSS as a management tool is facilitated by the estuary manager Direct community input to the EEMSS is required to e identify and score socio economic and cultural assets e identify and score the threats to those assets Decision phase At the time of making an opening decision the manager is required to e input data on current estuary conditions e assess the impact assessment and checklist reports e communicate the decis
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11. as Alternative grazing area may not exist and the use of hand feeding may be required during periods of inundation Category 4 Mixed grazing possibly some irrigation These areas have significant income generation usage Irrigated land in this category would be land that has occasional irrigation or is part of a larger area of irrigation that is not threatened with inundation Mixed grazing areas would run at reasonably high stocking rates and a significant greater than 10 area of the farming enterprise is threatened by inundation This area would be a higher rainfall area as in Category 3 above Category 5 Dairy orchard vineyard intensive agriculture or urban residential possibly significant irrigation used These areas are used for intensive agricultural pursuits The areas affected will usually be greater than 10 of the total enterprise area Grazing of dairy cows is at a high stocking rate greater than 1 5 cows per hectare of the entire milking area Orchard and vineyard use is part of a viable enterprise that is a significant part of the farm business These enterprises have significant areas of effected land that is capable of being used for this enterprise eg dairy land that is capable of growing 6 tonnes of dry matter of pasture per hectare per year or potato farming capable of producing yields similar to that of unaffected areas in the same enterprise Land type descriptions A percentage figure will be used for
12. dation of access tracks Substantial loss of camping sites due to inundation of sites Built infrastructure More than 50 mm above property grounds Level of the underside of the floor of the house or commercial industrial building 100 300mm above the floor level of the building More than than 300mm above the floor level of the building En Asset title Jetties Recreational land Roads and bridges Septic Systems Stormwater Walking tracks and bridges Details Insert information to identify asset Critical AHD AHD Access to jetty Jetty surface Some loss of recreational land due to inundation of access tracks Some inundation of recreational land Substantial loss of recreational land due to inundation of access tracks Substantial inundation of recreational land Less than 10 mm water over road or bridge 10 50 mm water over road or bridge 51 300 mm water over road or bridge Greater than 300 mm water over road or bridge Top of septic tank Bottom of septic tank Greater than 50 mm above property grounds Level of the underside of the floor of the house or commercial industrial building 100 300 mm above the floor level of the building Greater than 300 mm above the floor level of the building Access to track affected by inundation Inundation causes some problems with use of track Track unusable Appendix K The EEMSS Agricultural Land Impact Assessment Report Property Identi
13. eae ase sdew lensepeo Q UI pue NB AOb DIASJU MAA MH d x juoussassy joedui puE1 jeunqyjnouBby 99S Soiepunoq A dold puel jeanynonpby UedoZJIVVZIOOL gi AAIGTVOTLAGEVSPOELLVALW 0VO 200 449927 79 8 speoy DA BEDLHZOOEAJIGZYOVOrFDIASIAL llanc Jo s ysib M silounoo fedi lunul eool By WOU L 41FGIUOYAZ SIOPPIIUI JSU ABUGOUJA SJE SUONEBIIJISSE JL peol e90 SDEOMH JOUJA NB AOG JIA SPEOJIIA MAA dp y Je SPeOl JO sdeu S S peol ELISLIE JO UONBIIJISSEJL PEOY sabptq speoy syui7 sjlejap uoneuLojuj UoBEWAOJU Appendix J Assets and critical levels Australian height datum required for assigning threat scores Asset title Details Critical AHD AHD Insert information to identify asset EVC Coastal saltmarsh Lowest AHD Estuarine wetland mid point AHD Estuarine reedbed mid point AHD Swamp scrub Lowest AHD Littoral rainforest AHD 30 cm below surface of EVC Warm temperate rainforest AHD 30 cm below surface of EVC Refer to corresponding EVC Rare and threatened flora Agricultural land Low land Intermediate land High land Boat ramps Access affected by inundation Some problems associated with use of ramp Boat ramp unusable Some loss of camping sites due to inundation of access tracks Camping Some loss of camping sites due to inundation of sites Substantial loss of camping sites due to inun
14. eat Attributes ee inundated be n Predominant agricultural use categories Category 1 Non agricultural land Category 2 Dryland grazing non irrigated pasture forestry These enterprises have lovv level use of the affected asset areas for agricultural production The land is part of a larger extensive grazing or forestry enterprise f stock are grazed on the land it is for short periods of time during the year The impact of inundation is minimal as the farm is run at a lovv stocking rate vvith significant alternative grazing options In general this asset will be in lower rainfall areas where pasture production is less than 4 tonnes of dry matter per hectare per annum Paddocks used on the affected areas are large greater than 20 ha Category 3 High rainfall farming lifestyle farming These areas are subject to more intensive productive processes This is achieved through the greater capacity to produce pasture 4 6 tonnes dry matter per hectare per annum due to higher rainfall As a result there is greater stocking pressure and less alternative grazing options The enterprise would still be considered to be extensive grazing Paddock sizes would be smaller less than 20ha Lifestyle blocks may still be used for income generation but are not considered the primary source of income for the owners They are also of smaller area less than 10 ha Generally use is for small numbers of production animals horses or bush are
15. erges of Estuarine Scrub and further upstream where freshwater inputs from the creek and from groundwater are sufficient to sustain non halophytic v Example 2 Input of recreational assets x mHnenyv X 80 o 212 FBV 6 x B a ld Assef Descripfions Aire River Select relevant E Description Estuary Management H evc Mi Fiora Bil Birds Bil Fish MI Fishing H Roads MI Jetties Ramps MI Recreation recreational H Aor Land MI Stormwater Septics MI Built infrastructure H Indigenous Culture Cultural Heritage maps photos Notes assets There can be multiple Recreation entries e g more than one walking track or camping area t is therefore important to enter an identifying name for each This vvill appear on the impact assessment report double click to zoom field Fe You must enter a name or description of the asset Name s Contact No s EVVL m Kar anna 7 ix Camping yisamp spsasee SSCS Receatintand n on on E Waking oo e n on A 2 s l Refer to Critical AHD form Appendix G To delete an For the assets Agricultural land Roads entry Select Septics and EVCs it is critical that a single asset then right EWLS is entered in metres click on mouse Choose cut You will be asked to confirm you want to delete the record
16. es can be included by adding a row to the bottom of the list Relevant CMA details are added on the estuary management sheet in the description section Click on the Data Requirements tab to display forms that indicate the A Find Y our Estuary Data Requiremenis information required prior to impact Acknowledgements assessments QUIT Click Estuary on the Main Menu to go to the Estuary Listing Screen to view all estuaries in your database So Goy 77 Glee 1 b z k EP W za To iv mi rx Main Menu _ Find Your Estuary Data Requirements 1 Information Sources 2 Critical AHDs 3 Ag Land Impact Assessment 1 Anstrallan Miki ci 3 Detant e 5 Three files are provided to guide data collection ESTUARY LIST Estuarine OZESTUARY Estuary Hame CMA Status Water Level Date Hu EWWL m msaym s sinus mse m m 1 e van runesme T CCC op p ne T T ase ses r ses e m irse n pe ms cl ke YarmunTEumereiaRver status s n ssns mse pe
17. estigated Other solutions could include floating jetties amp boardwalks realigning or raising road levels moving septics or installation of sewerage systems raising stormwater drain outlets or reticulating stormwater and return of wetlands on flood affected land Assessment of the impact of flooding on agricultural land needs to be undertaken in consultation with the affected landholder Landholders only need to participate if they want their property included on the Impact Assessment report and therefore factored into the final decision to open or not open the estuary mouth Use of an independent agronomist to do these assessments is recommended An Agricultural land impact assessment proforma Appendix K is provided by the system for this purpose Asset and threat scores are assigned to each property affected by inundation Property IDs are used to identify each property in the EEMSS The consultant will need to be provided with aerial maps showing property boundaries and if possible contours indicting the extent of inundation at various EWLs The scores assigned are strictly confidential A fictitious property should be included for demonstration purposes in the workshop See section 6 11 The options for including Indigenous cultural values in the EEMSS should be presented to the Cultural Heritage Officer See section 5 1 Asset data input Locate your estuary by selecting the estuary listing button Step 2 New estuari
18. esult in feed prices being related to the cost of importation of feed from overseas A continental drought will increase the assigned threat value by 3 points The EEMSS will add the threat modifier scores to the total threat score and will not have the capacity to add the modifier to the individual attribute scores Therefore if both modifiers are applicable that is the property is experiencing drought and some land has been inundated for greater than the given period both modifiers will be added to the threat score 10 Installing the EEMSS on your computer EEMSS Database is a Microsoft Access built application The system has been custom designed and built Users do not need Microsoft Access M training but vvill need to knovv hovv to use the EEMSS application Current version Microsoft Access 2000 EEMSS 8 mdb EEMSS can be accessed by Microsoft Access 2000 or higher The user must only open the correct version of EEMSS depending on which version of Microsoft Access they are using If using Microsoft Access 2003 the user must convert the database to that version if they wish to make edits If using Microsoft Access M 2000 the user will not have to make any database conversions at all System requirements For best use of the EEMSS Database Application the user should have the following settings on their PC PCs using Windows 98 2000 Me XP or Windows NT 4 0 Pentium 1
19. fication Name Property Location Property ID Cadastral No Property Description Predominant Agricultural Use 1 2 3 4 5 Select one refer to Predominant Agricultural Use Categories Exceptions to single asset category land use This section is only to be completed if the property cannot be categorised using the agricultural use descriptions provided Please provide a description an estimated score and a brief justification for the score assigned Description Score Rationale for score Other relevant land details Only complete this section if the landholder has access to other non adjoined land or leased adjoined land Describe association to property affected by inundation Include information such as proximity accessibility and how land use is relevant to the property in particular how the land assists the landowner to mitigate loss associated with land inundation Land Types Include all land utilised as part of the farming enterprise when completing the table below Land type nu Estuarine vvater level EVVL m High land Refer to Land Type Descriptions LT Monthiy threat assessment Refer to Threat Attributes and Scores The total threat score is the maximum of the individual threat scores assigned to each attribute Comments o 0 access to higher land restoration required to mitigate of low amp 2 Capability Thr
20. inal wetland including peripheral or ephemeral zones Floristics Structurally prominent species include Gahnia filum Gahnia trifida and Baumea juncea with EVC s aval la b e to select in the database Mangrove Shrubland Defining characteristic Extremely species poor shrubland vegetation of inter tidal zone dominated by mangroves Habitat Mud flats of the lower inter tidal zone of sheltered embayments In Victoria e ed to tidal wetland situations Seasonally inundated Sub saline Defining characteristic Species poor low herbland of seasonal saline wetland dominated by Wilsonia spp Herbland Habitat Seasonal wetland within relicts of former tidal lagoons Salinity and water regimes fluctuate over wide range Habitat is rarely inundated tidally and then only by diluted seawater overland flows from the Barwon River are important Warm Temperate Rainforest Defining characteristic Closed forest to 25 m tall occurring along gullies and river flats Dominated by a range of non eucalypt canopy species above an understorey of smaller trees and shrubs and usually visually dominated by ferns and climbers Floristics Canopy usually dominated by Lilly Pilly Acmena smithii Muttonwood Rapanea hovwittiana and Swamp Scrub Defining characteristic Myrtaceous shrub species usually shared with Swamp Scrub occurring in association with ground layer dominated by non halophytic herbs Habitat Essentially freshwater habitat often on the outer v
21. ion and its rationale to the community qusma ku mi Bu a r 11 1 Asset descriptions Data acquisition The following is a step by step guide to loading your estuary s asset information into EEMSS This is done prior to community consultation The more complete and up to date the data set entered into EEMSS the better the impact assessment report will reflect the true impact of the decision Identify assets on the estuary 2 Identify AHDs at which assets are impacted by raised water levels 3 Investigate solutions other than artificially opening the estuary to protect inundated assets 4 Undertake flood impact assessments of agricultural land 5 Contact Cultural Heritage Officer The Data requirements sheet in the EEMSS includes three forms Use these as a guide when collecting data for inclusion in the database see STEP 1 Use the Information sources form Appendix to compile a complete list of socioeconomic cultural and environmental assets for inclusion in the description section of the EEMSS Complete Critical AHDs form Appendix J If all relevant AHDs are known this will ensure that assigning threat scores is a simple procedure to complete in the workshop If all relevant AHDs are not known then further work may be required to collect any missing data This is an essential step Inclusion of some assets in EEMSS may be required in the short term while options are inv
22. on of inundation on the use of a specific agricultural asset is related to the processes of vvaterlogging and salinity The assessment assumes an inundation period of less than 21 days For periods greater than 14 days threat attribute scores will be increased by one If a period of other than 14 days is recommended please complete the table belovv Critical duration of inundation days Threat modifier rationale Drought DR The extent of drought conditions will affect the productive capability of an asset EEMSS will change the threat scores to reflect the increased level of threat associated with each level of drought 1 Local drought 100 km Causes a reduction in the productive capability of the entire farming enterprise This will result in reduced capability to mitigate losses through decreased production of pasture from high unaffected land Consequently increased amounts of brought in feed will be required This will increase the threat value as assigned by one point 2 Regional drought 1000 km A reduction in the supply of brought in feeds due to drought in the areas where these feeds are sourced will result in increased prices of these feeds This will increase the threat value as assigned by 2 points 3 Continental drought 5000km Feed prices will be more severely affected by continental drought The effect of a regional drought would be increased costs of transportation of feed from distant areas Continental drought would r
23. t the significant nature an d cu Itu ra d ata Directory Of Important Wetlands in conservation recreation scenic or cultural heritage Australia attributes of the area are protected Ramsar O Wetlands DSE wetland YC 1 USS Fy ar in ence number Refer to Dir mp wetlands in Australia Wetiand id Wet cat Ref no Area Ha VVet type Criteria p 7520142052 sma Jo 8 es 4 Example 1 Input of EVC data THE list of EVCs was determined by the technical advisory group The critical EWL to enter is explained in the Critical AHD sheet Asset Descriptions Aire River Click down arrow on drop El Description BA Estuary Management El Bi Fiora Bil Birds Bi Fish Bi Fishing MI Roads Bridges B Jeticsamps down box to MI Recreation Mi Agr Land B Stormwater Septics Bl Built infrastructure Indigenous Culture Cultural Heritan s maps photos Notes select an EVC from the EVC predefined list User can add double click to zoom Bowsietfal Conservation EVC Full Description Status Source EVC Study Reference Dom oee 1717 I a Salman bsfnnoohaacisiniz l Se Wo n qa nevv records where they see the asterix Critical estuarine vvater level heights must be entered in
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