Attachment J - Sewage Treatment Assessment

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A DISPOSAL AREA IS TO BE PROVIDED FOR SHALLOW SUB-SURFACE DRIP IRRIGATION OF THE EFFLUENT. THE MINIMUM AREA AS
GIVEN ON PAGE 1 OF THE REPORT 18: 1120 m4,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MINDIUM SEPARATION OITANCES FROM EFFLUENT
c VERTICAL SEPARATION
PRIMARY | SECONDARY
[ EFFLUENT | EFFLUENT
| SBOVE WATER TABLE OF BEDROCK Tim “08m
: HORIZONTAL SEPARATION
PRIMARY | SECONDARY
EFFLUENT | SFPLUENT
| WATER COURSE, DANE BORE OR WELL Som 30m
a BOUNDARY — LOWER THAN DISPOSAL AREA rr m
Pi ¥. Y — HIGHER THAN DISPOSAL AREA 2m mh
Coweta REN'S PLAY AREA én tm
SWIMMING POOL : am 5
(NGROUND POTABLE WATER TANK Sm 2
PPELWES.
1. HYDRAULIC DESIGN OF PIPELINES AND PUMPSET TO SE BY THE SUPPLIER/MANUPACTURER.
2, PIPEUNE SIZES:

e (AANIFOLDS - NOT LESS THAN 40 mm
2 _LATERALS ~NOT LESS THAN 25 mm WITH MIN. 5 min ORILED HOLES SPACED EVENLY
3, PIPEWORK SHALL BE RATED TO WITHSTAND MIN, 150% OF THE SHUT-OFF HEAD OF THE IRRIGATION PUMP.

SITE PREPARATION

SITE IS TO BE SCARIFIED TO A DEPTH OF 200 mm,

SEMLFLEXIBLE-ROBUST PIPEWORK LAID ANO COVERED WITH TOPSOL, & WULCHED OR TURFED, .

PERIMETER OF GARDEN AREA.TO SE MOUNDED Mil, 200 mm HIGH WITH CLAY MATERIAL TO AVOID ANY SURFACE RUNOFF TO

FILL IS RESTRICTED TG FREE DRAINING MATERIAL (ea. ory SAND OR LOAM).
FRL BATTERS TO BE NO GREATER THAN 1V:2H.

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ata

4 T 16 THE INSTALLER’S REGPONSIBRITY 70 ENSURE THAT ALL a (EsrEcuLLY. IMPORT: ‘ED SOILS, GRADIENTS &/OR
MOUNDS) COMPLY WITH THESE GUIDELINES UPON COMMISSIONING THE SYSTEM.
2, THE SUPPUERANSTALLER SHALL ENSURE ALL IRRIGATION PIPEWORK AND FITTINGS COMPLY WITH AS {477 OR AS 2638.
3. THE DISTRIBUTION IRRIGATION LINES SHALL HAVE A MINIMUM DEPTH OF COVER OF 100 mm.
4. THERE SHALL BE NO CROSS-CONNECTION BETWEEN ANY IRRIGATION PIPEWORK AND POTABLE WATER SUPPLY.
5. WHERE DRIP LATERALS ARE USED THEY ARE TO BE PLACED ALONG THE CONTOUR (USE OF LEVEL RECOMMENDED TO
EXSURE THIS 1S OBTAINED).
& ALL BURIED PIPEWOAK IS TO BE IDENTINEO WITH UNDERGROUNO MARKING TAPE PLACED ABOVE THE PIPEWORK.
7, ALONG. THE BOUNDARY OF THE SUS-SURFACE IRRIGATION AREA THERE SHALL BE AT LEAST 2 WARNING SIGNS CLEARLY ©
VISIBLE TO ADVISE THAT REGYCLED WATER IS USED FOR IRRIGATION (EACH SIGN SHALL COMPLY WITH AS1319 AND HAVE THE
EN n eee rye tan eaheatel
T SUBSURFACE TRENCHES SHALL BE PROVIDED TO Ww
IG OF THE POS TO-BE 0. Acero
VACUUM BREAKERS WITH SURFACE BOXES SHALL BE PROVIDED TO PREVENT SOMINGRESS TO THE IRRIGATION LUNES.

MAINTENANCE

t REGULAR ROUTINE MAINTENANCE CHECKS OF THE RRIGATION SYSTEM SHALL BE CARRIED OUT BY THE OWNER OR MISHER
2. FITTINGS SHALL BE MAINTAINED IN CORRECT WORKING ORDER TO ENSURE PROPER PERFORMANCE.

PLANTING :

TURFED OIRPOBAL AREAS ARE TO BE MOWN REGULARLY,

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Saas Renee isis , DOMESTIC WASTEWATER DISPOSAL SYSTEM
sais tooran apr ies y SITE & SOIL EVALUATION
soktemenan SHALLOW SUB-SURFACE DRIP IRRIGATION
pd chesiet | 1/7 | VIPASSANA CENTRE - 35 RULES RD, POMONA
Mobs (0419) 341 876 ~ ;
emelt [email protected] | Data: YY — | ascoss No ognst4 | sheet 2ots |

VAON Why TROA FAS 1 TA YUH HEIR NNW an AT/RA