MCU10/2083 Development Application part 2 - Attachment 7 - Stormwater Management Plan





TABLEOFCONTENTS
1.0 INTRODUCTION....................................................................................................................................................5
2.0 SITECHARACTERISTICS.........................................................................................................................................5
    2.1 LOCATION.........................................................................................................................................................5
    2.2 TOPOGRAPHYANDSITEDRAINAGE.................................................................................................................5
3.0 WATERQUANTITY................................................................................................................................................6
    3.1 INTRODUCTION................................................................................................................................................6
    3.2 CATCHMENTS...................................................................................................................................................6
    3.3 COEFFICIENTOFRUNOFF................................................................................................................................6
    3.4 TIMEOFCONCENTRATION...............................................................................................................................6
    3.5 RAINFALLINTENSITIES......................................................................................................................................7
    3.6 FLOWS(UNMITIGATED)....................................................................................................................................7
    3.7 COMPARISONOFFLOWS.................................................................................................................................7
4.0 CONSTRUCTIONPHASEWATERQUALITYMANAGEMENT...................................................................................8
    4.1 POLLUTANTS.....................................................................................................................................................8
    4.2 POTENTIALIMPACTS........................................................................................................................................8
    4.3 PERFORMANCEOBJECTIVESANDINDICATORS................................................................................................8
    4.4 MONITORINGANDMAINTENANCE..................................................................................................................9
    4.5 RESPONSIBILITYANDREPORTING....................................................................................................................9
5.0 OPERATIONALPHASEWATERQUALITYMANAGEMENT....................................................................................10
    5.1 INTRODUCTION..............................................................................................................................................10
    5.2 POLLUTANTS...................................................................................................................................................10
    5.3 OBJECTIVES.....................................................................................................................................................10
    5.4 STORMWATERQUALITYTREATMENTTRAIN.................................................................................................11
    5.5 MAINTENANCE...............................................................................................................................................11
    5.6 MUSICCATCHMENTPARAMETERS................................................................................................................12
    5.7 MUSICSOURCENODEPARAMETERS.............................................................................................................12
    5.8 MUSICRAINFALLPARAMETERS......................................................................................................................13
    5.9 MUSICTREATMENTNODEPARAMETERS.......................................................................................................13
    5.10 MUSICMODEL............................................................................................................................................14
    5.11 MUSICRESULTS..........................................................................................................................................14
6.0 CONCLUSION......................................................................................................................................................15
7.0 APPENDIXA........................................................................................................................................................16




    SITEBASEDSTORMWATERMANAGEMENTPLAN–RevisionD                         37GibsonRoad,Noosaville                                                            Page 3



[OCR of page images]
———4
Zar
AUR

URBANCONSULTANTS

1.0 INTRODUCTION ..0...c ccc cece ccesccecsceeceecseeessecessecsececsecsesesesseseseecsesessecseecseceeseseeseesessassecessecsssessessaes ceseseeseesaseeseaees 5
2.0 SITE CHARACTERISTICS ......cccccsescsssscessssesccecsecsesecsecsesscsessscessesseecsessesecsscesecsesesseseessseessecessecescesseseeseseeseesisesseeesseees 5
2.1 LOCATION .0...ceccecccceececeeccecsceessecsesecsececsecsesecseceeeessasseessessesessecsesessesecseseasessassececsecsecessecsesesses ceessesaeeesseeaseeseneas 5
2.2 TOPOGRAPHY AND SITE DRAINAGE ..........cccccccecssscsesscssesesscsessceesseseseecsecessecsececsecsssessassesesessesesseesesessneeseeseasenes 5

3.0 WATER QUANTITY ....

 

B.D INTRODUCTION .... occ ccccceccccceecccscsecsececsecsesecsesseeessesseessessesecseceesessesseessassseessecsesecseseaseseeseseseessseesscessecaesessnsegs 6
3.2 CATCHMENTS ou... ccccccecscesscscssesssecseescsecsesecsesececsecsssessececsessesecsecsesessesseessasssessecessesseeesseceeseseeseeseseceeeesseesseeseneass 6
3.3. CO-EFFICIENT OF RUNOFF...

 

3.4 TIME OF CONCENTRATION........ccccccceccscecescsecseeecsececsecsececsecseessesecessessecessecessesseceesessaseseeseeseseeseeeessesseeessesasenses 6
3.5 RAINFALL INTENSITIES .......cccccccccsescsecscsecseseceessecsseessecsssecsececsecsesesseseesessessesessecsesecsesesseseesseeeseessesessecssecinecesees 7
3.6 FLOWS (UNMITIGATED)... eee een etree teens nene nese neeeseseseeneseeneeeseseneseneseseesessenes seeseeeeneneeenege 7
3.7 COMPARISON OF FLOWS .......ccccccccccsscsssscessscesssecsceecsecsesecsececsscsesessessesessessccessecsesecsessasesseseseessassesessessssesseeeseness 7
4.0 CONSTRUCTION PHASE WATER QUALITY MANAGEMENT .........ccccccccescecceessesseceseecsecesecseeesseseseeseesseeeseseseesseees 8
4.1 POLLUTANTS 20... .cecccccceccsecscesceecsececeesseesssecsesecseceaecsessesessassecessecsesecsesseecseseseessessseessessssessssecseeaes seeseeeeseesaseeseeees 8
4.2 POTENTIAL IMPACTS ......cccccccesseseseesssecsesecsecscsecsesesecsesessessececsecsesecsecessesseseseessessasessessssesssceeseceeseseeseeseseeseeeseeees 8

4.3, PERFORMANCE OBJECTIVES AND INDICATORS...

 

4.4 MONITORING AND MAINTENANCE.........cccccccceccscsceescesseeecsecsesecsececsecsesesecsesessessecessecsecesseseeseseeseeseseesseeassesaseese 9
4.5 RESPONSIBILITY AND REPORTING 2.00... cccccssscssescescseesssessecsssecseecseceesecseseeseseessecessecsesesseseeseseeseeseseessesessesaseess 9
5.0 OPERATIONAL PHASEWATER QUALITY MANAGEMENT ........ccccccccccescsecseesseescsecsecscsecseseseessesssessasseeessesseessneese 10
5.1 INTRODUCTION ou... ecccceccecceecsecseeecsecsesecsecsesessessccsssesscessasscsecsecsssessesessssasseeessesseessesesseseeseseeseasisecsseesessaees 10
5.2 POLLUTANTS 1.00. .ccccccccccscesceesscceseecsececsecsesecsecsesessessesessesseessecsesecsessasessesssessesseeessecsesecsessssecsesessess cesesseeesseeaeeess 10
5.3 OBJECTIVES 2.0... ccccceccseccescsssscesssecsesessecsesecsececsecsesecsecsessssessecessecsesecsscseseseesessesssssecessessecessesssseses seseseesseeesseeaseese 10
5.4. STORMWATER QUALITY TREATMENT TRAIN .......c.cccccecssescesceeeseesseceseecsesessecseeessecseeseeseesessessesesseseseesseeesatea 11
5.5 MAINTENANCE uc. ccecccesccecsceessecseeecsecsesecsecsesessesscessessesecsecscsecsesessessessseessesseessessesessuceuseseeseseseasesseseseseesaneess 11
5.6 MUSIC CATCHMENT PARAMETERS ........ccccccccescesssseseeeesececsecsececsecsessceseesseeesseceesessesessecseseseeseasseeessessesesseeeseesea 12
5.7, MUSIC SOURCE NODE PARAMETERS .........ccccccsssscssesesscssescsecseceseessecessessecessecsseessecseeeseeseesessesseeessesessecsessaeeses 12

5.8 MUSIC RAINFALL PARAMETERS...

 

5.9 MUSIC TREATMENT NODE PARAMETERS. .........cccccccccssescssescesssecscesssesseeecsesessecseeecseseesesesseseseessesesseseseessesesate 13
5.10 = MUSIC MODEL... ececccccccccccsceeesecsesecsecsescsessceessesscsessesseecsessesecseseseesseseseessesessessecssseceeseseeseaseseeseeeeeesaeess 14
5.11 MUSIC RESULTS 00... cccecceccccceecscescseescsecsecscsecsessceessesseecsecsesecseceasessesessessessceessessesessscesseseeseseeseasiseesesseeesaeess 14
6.0 CONCLUSION ..0..ecccecccccccceecsececsecsesscsececscsessseessesesecseceesecsececsecsesesseseessseesseceseecseeessecseseseseesases sesseseciseeseseaseges 15
7.0 APPENDIX A .oo.cceccccceccsccesssecssescseeseecsesecsscsessssessesssessecessecseceeseceeseseesseseseessecsssessecessecseseseseases sesessesesiseeseseasene 16

 

SITE BASED STORMWATER MANAGEMENT PLAN — Revision D 37 Gibson Road, Noosaville 3