RECENæSonentRegionala

16 July 2015 - 2 SEP 2015

DocgThe Chief ExecutiveOfficer BoxNo: R

Somerset Regional CouncilPO Box117Esk, Old 4312

Dear Sir

RE: Flood Height - Lot 1 RP61381

On 14 July 2015, i observed levels with respect to lot 1 RP61381with the following results (see

attachedsketch and photos.

(1)Height Datum

All levels are on derived Australian Height Datum (AHD Der).The origin of this Datum waspermanentmark No 44743 (RL67.356).Levelswere determined from GPS observations using RTK

methods

(2)Site levels (lot 1 on RP61381)

Ground levels were observed at Lot 1. This point is marked A on the house site plan. The house sitelevel is 68.357 metres.

(3)Flood levels

An adjoining propertyowner Mr Brendan Neumannwho residesat 774 Rocky Gully Road, which lies

south east of Buaraba Creek and alongsideLot 1 was kind enough to identifythat the highest floodin 2011, reached his concrete slab under the carport attachedto his house.

The level point (Point B on the photo) is located 400 metres upstream from a point in Buaraba Creekon the garage slab at 774 Rocky Gully Rd.

The Ground level at the garage slab is 68.197 metres.

I have been unable to identifyany other reliable flood heights in the vicinity of our site.

I trust this informationproves successful.

Yours faithfully

Rhett Phipps

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EnvirodisposalPty. Ltd. ABN 66 104 290 780 TradingasEDWARDS & ASSOCIATES WASTEWATERCONSULTANTS

Manager: P.O. BOX 3077 SOUTHPORTDennis Edwards AFIEAust BUSINESS CENTRE 4215.CharteredEngineeringAssociate pH: (07) 55-311876Cert.Geol. Assoc.Dip.App.Sc.(Geol) Fax: (07) 55- 918744Member:Australian Geomechanics Soc. Mobile: 0419 311876BSA Lic 2026654 email: dennis@greywateraustralia.com.au

www.greywateraustralia.com.auEFFLUENTDISPOSALSITE EVALUATIONREPORT

REPORT No:Assess1507101 Date:22.07.2015SITE INFORMATION:Client: R & C PhippsSite Address: Lot 1 ON RP61381 Rocky Gully Rd,BurabaLocal Authority: Somerset RegionalPROPOSAL:At this site a new 4 bedroomcaretakers residence is proposed will have effluent discharged to a allwaste septic tank then to absorptionbedDISPOSAL AREA SITE ASSESSMENT:SITE FACTORS: Proposed disposal site area slopes at approximately...1...degrees.Site is cleared.SITE LIMITATIONS / DESIGN CONSTRAINTS: large acreage within catchment area withlimited power & disposal field is >200m from any creekSOIL ASSESSMENT:Bore log / typicalsoil profile:0 - 500 SAND-silty,red brown,clayeywith depth / CLAY-sandy,redbrown,moistPermeability (from on-site K Sat test data)= 0.12 - 0.50m/daySoil category#4 (" Clay Loam range")

DESIGN LOADINGRATE: =6mm/Day (AS1547- 2000)LAND APPLICATION METHOD:Effluentdisposal will be by absorptionbedsTYPE OF EFFLUENTDISPOSALFACILITY:All waste septic tank..Minimum capacity=3500 litres.....incorporating an outlet filter and pumpwell to pump to disposal field.Calculations:6 Persons /4 bedrooms @ l15 1/day = 690 1/day (q) (AdoptedDLR = 6mm/day)Area of beds = q

DLR=115m2

SCOPE OF WORK: Edwards and Associateshave been commissionedto design an appropriate effluent disposal systemfor thispropertyandfor the nominated use. Installation and ongoinemaintenanceof the system is the responsibility ofothers.

e Approx bounda

ne for lot i All wasteseptictank 3500Lïncorporatinganoutlet filter & a

/ pumpwell to/ dischargeto LOW area

proposeddisposal field

macAccess ...--

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Re_sponsibilities of Installer1,Installershall only use council

approved plans.2. Plansare diagrammatic...itis theinstallers responsibility to ensure

efficient / even distributionofeffluent....withno leakage from

application area.3. HSTP is to be installed to

manufacturersspecifications and inaccordancewith the governing

authorlty guidelines.4. Edwards & Associates havebeen

commissionedto designanappropriate effluent disposal systemfor this property.....Installationandmaintenanceof the system is the

responsibilityof others.

2mDistribution box

2 Absorption Beds:15m x4m

100% reserve O O? area if required O mApproxproposed O

caretakbedr se

o Bo o70m approx

e fencing S

Paddocks 2

EDWARDS& ASSOCIATES HAVEBEENENGAGEDTO DESIGNAN EFFLUENTDISPOSALSYSTEMSulTABLE TOTHIS SITE& NOMINATEDUSAGE.MISTALLA710NANDONGONHfMN7ENANCEOF THESYSTEM IS 7HERESPONSENLITYOFOTHERS.

MINMUM RFPARATIONDIRTANCFR FROM FFFI UFNT

VERTICAL SEPARATION AUVANQUPRIMARY SECONDARYEFFLUENT EFFLUENT

ABOVEWATER TABLEOR BEDROCK 1.2m 0.3mHORIZONTALSEPARATION

PRNARY SECONDARYEFFLUENT EFFLUENT

WATERÇÇÿR$E,DAM, BOREQRWELL $0m 10mPROPERTYBOljNDARY LOWERTHAN DISPOSALAREA 4 m 4 mPROPERTYBOUNDARY HIGHERTHANDISPOSALAREA 2m 2mDWELLING.CHILDRENSPLAYAREA 4 m 4 mSWIMMNG POOL 6 m 6 m

SITF PRFPARATION

SEECROSSSECTION(REFERSHEET3)

INSTALLATION

1. IT IS THE INSTALLERS RESPONSIBILITYTO ENSURETHATALLCOMPONENTS(ESPECIALLYFITTINGS,thPORTED S0lLS & GRADIENTS)COMPLYWITHTHESEGUIDEUNES UPONCOMMISSIONINGTHE SYSTEM.

2. THE TRENCHESOR BEDSSHALL BE PLACEDALONGTHE CONTOUR(USEOF A LEVELREC0lNENDED).1 THESUPPLIERilNSTALLERSHALL ENSUREALL IRRIGATIONPIPEWORKAND FITTINGSCOMPLYWITH AS

1477 ORAS2698.4. THERESHALLBE NOCROSS-CONNECTIONBETWEENANY PIPEWORKANDPOTABLEWATERSUPPLY.5. ALL BURIEDPIPEWORKIS TOBE IDENTIFIEDWITH UNDERGROUNDMARKINGTAPEPLACEDABOVETHE

PIPEWORK.6. ALONGTHE BOUNDARYOF THE EFFLUENTDISPOSALAREATHERESHALL BEAT LEAST2 WARNING

SIGNSCLEARLYVISIBLETO ADVISETHAT THEAREA ISA DESIGNATEDEFFLUENTDISPOSALAREA (EACHSIGN SHALL COMPLYWITHAS1319AND HAVETHEWORDING RECYCLEDWATER AVOIDCONTACT DONOTDRINK).

7. SCOURVALVESIN SURFACEBOXESANDSCOURP0lNT SUBSURFACETRENCHESSHALLBE PROVIDEDTOALLOWPERIODICCLEANINGOFTHE SYSTEM.POSITIONSTO BE MARKED.

MAINTENANCE

1. REGULARROUTINEMAINTENANCECHECKS OF THE IRRIGATIONSYSTEM SHALLBE CARRIEDOUTBY THEOWNEROR HIS/HERREPRESENTATIVE.

2. ALL FITTINGSSHALLBE MAINTAINEDIN CORRECTWORKINGORDERTO ENSUREPROPERPERFORMANCE.

DOMESTICWASTEWATER DISPOSALSYSTEMSITE& SOIL EVALUATION

ABSORPTIONBEDPh:(07)55311876 LOT 1 Rocky Gully Rd,BurabaFax.(07)55918744 Checked.DRE

Mob:(0419)311876

email:dre@primus.comau Date: 22.07.2015 Assess.No: 1S07101

90mmor 100mms atted DWV pipe

Setdementslowance

Finishedsurface Existingsurface

. . . . , . ._.

150mrTop 1 to pF

te clote

grass

DialnbulianaDgregate(20mm - 40 mm)

1000mm 2000mm 1000mm

4000mm

Bed Cross Section

NOTE: CONTINUEDEFFICIENTPERFORMANCEOFTHISEFFWENTDISPOSALSYSTEMMAYREQUIREROUTINEMAINTENANCE.AFTERINSTALLATIONIT ISTHEOWNER'SRESPONSIBILITYTOENSURETHATNAINTENCECHECKSARECARRIEDOUTONA REGULARBASIS.

S¢ale:NTS DOMESTICWASTEWATER DISPOSALSYSTEMSITE & SOIL EVALUATION

Ph:(07)55311876Drawn:

ABSORPTIONBEDS(PrimaryEffluent)

Fax:(07)55918744 Checked:DRE LOT1RockyGullyRd,Buraba

Mob:(0419)311876

email:dre@iprimus.com.auDate: 22.07.2015 Assess.NO: 1507101