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Appendix J - Water Supply and Wastewater Servicing Report
REPORT
Appendix J
Water Supply and Wastewater Servicing Report
PR139784 | Town Planning Report | v4 | 5 June 2019
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PF80 - COOROY CARE FARM WATER SUPPLY & WASTEWATER SERVICING Company. Lutheran Services Contact. Mark McConnell Date. 24 May 2018
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Lutheran Services ii PF80 - Cooroy Care Farm 24 May 2018 Ref. No. 2017.0616 DOCUMENT CONTROL SHEET DOCUMENT PF80 - Cooroy Care Farm JOB NUMBER 2017.0616 PROJECT ENGINEER David Hamlyn-Harris CLIENT Lutheran Services CLIENT CONTACT Mark McConnell VERSION AUTHOR REVIEWED APPROVED DATE 01 David Hamlyn-Harris Cameron Riach 06/04/2018 02 David Hamlyn-Harris Jim Mitchell Cameron Riach 24/05/2018 © Bligh Tanner Pty Ltd May 2018 Bligh Tanner Pty Ltd ABN 32 061 537 666 Level 9 269 Wickham Street PO Box 612 Fortitude Valley Qld 4006 Australia T +61 7 3251 8555 F +61 7 3251 8599 [email protected] blightanner.com.au
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Lutheran Services iii PF80 - Cooroy Care Farm 24 May 2018 Ref. No. 2017.0616 CONTENTS 1 INTRODUCTION .............................................................................................................................. 1 1.1 Background ...................................................................................................................................... 1 1.2 Location ............................................................................................................................................ 1 1.3 Site Details ....................................................................................................................................... 2 1.4 Purpose ............................................................................................................................................ 3 1.5 Unitywater Advice ............................................................................................................................. 3 2 DEVELOPMENT DETAILS .............................................................................................................. 5 2.1 Proposed Facilities ........................................................................................................................... 5 2.2 Population Estimates ........................................................................................................................ 6 2.3 Other Site Uses ................................................................................................................................ 6 3 POTABLE WATER SUPPLY ........................................................................................................... 7 3.1 Proposed Potable Supply ................................................................................................................. 7 3.2 Potable Water Demands .................................................................................................................. 7 3.3 Regulation of Private Drinking Water Supplies ................................................................................ 7 3.4 Roofwater Water Balance ................................................................................................................ 8 3.5 Borewater Supply ........................................................................................................................... 10 3.6 Water Treatment............................................................................................................................. 10 3.7 Design Details ................................................................................................................................ 10 4 NON-POTABLE WATER SUPPLY ............................................................................................... 12 4.1 Proposed Non-Potable Supply ....................................................................................................... 12 4.2 Non-Potable Water Demands ........................................................................................................ 12 4.3 Supply Reliability ............................................................................................................................ 13 4.4 Non-Potable Water Treatment ....................................................................................................... 13 4.5 Design Details ................................................................................................................................ 13 5 WASTEWATER MANAGEMENT .................................................................................................. 14 5.1 Proposed Wastewater System ....................................................................................................... 14 5.2 Wastewater Flows .......................................................................................................................... 14 5.3 Regulatory Requirements ............................................................................................................... 14 5.4 Connection to Unitywater Rising Main ........................................................................................... 14 5.5 Design Details ................................................................................................................................ 15 FIGURES Figure 1 Site Master Plan ........................................................................................................................... 1 Figure 2 Site Location ................................................................................................................................. 2 Figure 3 Site Details ................................................................................................................................... 2 Figure 4 Unitywater Services ...................................................................................................................... 4 Figure 5 Roofwater Balance Model Results ............................................................................................... 9
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TABLES
Table 1 Development Summary ................................................................................................................. 5
Table 2 Population Estimates ..................................................................................................................... 6
Table 3 External Site Uses (Northern Development Area) ......................................................................... 6
Table 4 Estimated Residential Water Demands ......................................................................................... 7
Table 5 Rainfall Data – Black Mountain ..................................................................................................... 8
Table 6 Roofwater Balance Model Results ................................................................................................ 9
Table 7 Potable Water Supply Configuration ........................................................................................... 10
Table 8 Non-Potable Water Demand Rates ............................................................................................. 12
Table 9 Average External Water Demands .............................................................................................. 12
Table 10 Non-Potable Water Supply Configuration ................................................................................. 13
Table 11 Estimated Wastewater Flows .................................................................................................... 14
Table 13 Wastewater System Configuration – Direct Connection to Unitywater Rising Main ................. 15
APPENDICES
A. Unitywater Service Advice Notice
B. Sketch Plans
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EXECUTIVE SUMMARY
Introduction
This report has been prepared by Bligh Tanner to define the water supply and sewerage
infrastructure required to service the proposed Cooroy Care Farm.
The site is within the Unitywater area of operations, but is outside Unitywater’s planned services
area. The facility will need to be self-sufficient with respect to water supply. However, a
Unitywater sewerage rising main runs to the north of the site and, subject to conditions,
Unitywater has indicated that the development will be able to connect to this main.
This report addresses how an adequate supply of potable water will be sourced to meet the
residential requirements of the facility, how an adequate non-potable water supply will be sourced
to meet the needs of the care farm, and how wastewater generated within the site will be
managed.
Based on the proposed Master Plan, the potential site population adopted for design purposes is
87.5 EP.
In addition to the domestic needs of the community, external site uses that will require water
include site landscaping and lawns, farm areas (gardens, crops, fruit trees) and stock watering.
Potable Water Supply
Based on the anticipated site population the estimated residential water demand (excluding
external uses) is conservatively estimated to be 6.3 ML per year.
Potable water will be supplied to the facility from harvested rainwater and from an on-site bore.
A detailed water balance model has been developed to assess the potential for roofwater to meet
the requirements of the development. The analysis indicates that a total of approximately 850 kL
of roofwater storage will be required to supply all but 1,000 kL/year of demand on average (ie
85% reliability). 20-30 kL rainwater tanks will be provided at each building with captured rainwater
and borewater will be pumped to the central storage and treatment plant.
A water supply bore has not yet been established on the site, however, preliminary advice is that
it should be possible to develop a good quality groundwater bore on this site with a yield that
would make it a good back up supply. Borewater will also be pumped to the central storage and
treatment plant.
High quality treated rainwater and borewater will be distributed around the site.
Non-Potable Water Supply
The estimated demand for non-potable water for irrigation of crops and landscaping, and for stock
watering, is up to 13.7 ML/year depending on the extent of irrigated landscaping and the farm
activities adopted within the facility.
Non-potable water will be sourced from the on-site dams, and pumped from the dams to a central
storage tank for distribution to use areas. The supply will require minimal treatment (ie in-line
filtration) to be suitable for the proposed uses.
Wastewater Management
Unitywater has an existing sewage rising main from Pomona to the Cooroy STP that runs
adjacent to the northern site boundary along Rose Gum Road. Unitywater has provided advice
that, subject to a number of further investigations and design requirements, a pumped
wastewater discharge from the aged care facility into the rising main will be allowed. The
discharge rate would be approximately 1-5 to 2 L/s. The connection to the rising main would be
completed in accordance with Unitywater’s requirements.
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GLOSSARY
Term Definition
ADWG The 2011 edition of the Australian Drinking Water Guidelines, published by the
National Health and Medical Research Council (NHMRC) and Natural Resource
Management Ministerial Council (NRMMC).
ARI Average Recurrence Interval
BAU Business as Usual
Capex Capital Cost
catchment Area that collects rainfall and contributes to surface water runoff or to groundwater
chlorination Use of chlorine as gaseous Cl2, sodium hypochlorite liquid or granular calcium
hypochlorite as a means of disinfection
Cl Chlorine
CO2 Carbon Dioxide
contaminant Biological or chemical substance, not normally present, capable of producing an
adverse effect in a biological system, seriously injuring structure or function
DBPs Disinfection by-products
disinfection A process provided to kill or inactivate pathogenic (disease causing)
microorganisms
distribution A network of pipes leading from a treatment plant to the customers plumbing
system systems
DES Department of Environment and Science
EA Environmental Authority
EP Equivalent Population
ERA Environmentally Relevant Activity
filtration Process in which particulate matter in water is removed by passage through
porous media
GHGs Green House Gas Emissions
GL Gigalitre (equivalent to 1,000ML)
ha Hectare (10,000 m2)
IPR Indirect Potable Reuse
kL Kilolitre (1,000L)
kWhr Kilowatt hour (1,000W)
mains water Potable water from a reticulated water supply (e.g. town water supply)
MCA Multi-criteria analysis
mg/L milligrams per litre
ML Megalitre (equivalent to 1,000kL)
kgN Kilograms of Nitrogen
NHMRC National Health and Medical Research Council
NRMMC Natural Resource Management Ministerial Council
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Term Definition
nitrogen An important nutrient found in high concentrations in recycled waters, originating
from human and domestic wastes. A useful plant nutrient that can also cause off-
site problems of eutrophication in lakes, rivers and estuaries.
NPV Net Present Value
non-potable (Water) of a quality not suitable for drinking
NTU Nephelometric Turbidity Units
nutrient Any substance assimilated by living things that promotes growth
O&M Operations & Maintenance
Opex Operation & Maintenance Cost
pathogen A disease-causing organism (e.g. bacteria, viruses and protozoa)
percentile A percentile is the value of a variable below which a certain percent of
observations fall
phosphorus An important nutrient found in high concentrations in recycled waters, originating
principally from detergents but also from other domestic wastes. A useful plant
nutrient that can also cause off-site problems of eutrophication in water bodies
pollutant Substance that damages the quality of the environment
potable (Water) of a quality suitable for drinking, cooking and personal bathing
protozoa A phylum of single-celled animals. Includes Guardia and cryptosporidium
rainwater Refer to roofwater
recycled water Appropriately treated effluent suitable for further use
residual Chlorine dosing for the purposes of maintaining a residual concentration in the
chlorination distribution system
RO Reverse Osmosis
roofwater Water collected from the roofs of buildings
SS Suspended Solids
stakeholder A person or group (e.g. an industry, a government jurisdiction, a community group,
the public, etc) that has an interest or concern in something
stormwater All surface water runoff from rainfall, predominantly in urban catchments
TN Total Nitrogen
TP Total Phosphorus
TSS Total Suspended Solids
turbidity The cloudiness of water caused by the presence of fine suspended matter
USEPA United States Environmental Protection Agency
UV Ultraviolet
water balance The relationship between input, storage and output within a hydrological system
water quality The chemical, physical and biological condition of water
water recycling Beneficial use of appropriately treated wastewater and urban stormwater purposes
WTP Water Treatment Plant
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1 INTRODUCTION
1.1 Background
This report has been prepared by Bligh Tanner on behalf of Lutheran Services to define the water
supply and sewerage infrastructure required to service the proposed Cooroy Care Farm. Refer to
the Site Master Plan – Figure 1.
Figure 1 Site Master Plan
1.2 Location
The development is located at 10 & 22 Rose Gum Road and 521 Elm Street, Black Mountain,
Cooroy Qld 4563 (Lots 1 and 2 on RP862537 and Lot 3 on SP235191). The site is approximately
3 km north west of Cooroy and 4 km south east of Pomona (Figure 2).
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Approx 3km
Figure 2 Site Location
1.3 Site Details
The overall 23.5 ha site is effectively divided into three separate areas, the northern development
area (approx. 8 ha), the central riparian zone (approx. 9.5 ha) and the southern area (approx. 6
ha) (Figure 3).
Northern
Resident Area
(approx 8.0 ha)
Riparian Zone
(approx 9.5 ha)
Southern Area
(approx 6.0 ha)
Figure 3 Site Details
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1.4 Purpose
This report addresses:
▪ How an adequate supply of potable water will be sourced to meet the requirements of the
residential care facility;
▪ How an adequate non-potable water supply will be sourced to meet the needs of the care
farm, ie for irrigation of crops and watering of stock;
▪ How wastewater generated within the site will be managed.
This report does not address site fire services in any detail, or the internal water and sewerage
pipe network, which will be provided by the hydraulics consultant, though the outcome of these
investigations will influence the internal plumbing requirements.
The proposed development is an aged care facility, catering for dementia and respite care, and
centred around a farm environment. The water and wastewater objectives therefore include:
▪ Potable water supply:
– A secure supply that can reliably meet the community’s water needs at all times;
– A safe supply that guarantees the quality of the water to protect the health of the
community;
– A supply that meets the requirements of the appropriate regulatory authority (Sunshine
Coast Council / Queensland Health);
▪ Non-potable water supply:
– An appropriately secure supply to meet the farm and other non-potable water needs;
– A supply of suitable quality for farm and other non-potable water uses;
▪ Fire-fighting:
– An adequate volume of stored water to meet the specified flow and duration of fire-fighting
flows;
▪ Wastewater management:
– A direct wastewater discharge into the existing Unitywater rising main located to the north
of the site in accordance with Unitywater requirements.
1.5 Unitywater Advice
Advice received from Unitywater in November 2016 indicated that the proposed development “is
outside Unitywater’s current and future Water and Sewer Services Area” and that they were
“unable to offer connection” to their networks.
Nevertheless, it is noted that a Unitywater sewerage rising main runs between Pomona and
Cooroy adjacent to the site along the railway corridor (refer to Figure 4).
Further advice from Unitywater is that connection to the sewerage rising main, ie via a private on-
site sewage pumping station pumping directly into the main, would be approved as there is a
precedent for this type of connection in the area. An updated Service Advice Notice (SAN) has
been received from Unitywater (SAN No. 201801292, dated 19 April 2018) to confirm their
position. The SAN is included at Appendix A with the main points summarised below:
▪ Unitywater will permit the development to connect to the rising main subject to a number of
conditions;
▪ The connection will be privately owned and operated, and constructed at the Lutheran
Services’ cost;
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▪ Lutheran Services will be required to complete a sewerage network analysis by a suitably
qualified and experienced consultant, outlining the impacts on the existing network and
identifying any upgrading works required to accommodate the connection;
▪ All proposed sewerage works must be designed and constructed in accordance with the South
East Queensland Water Supply and Sewerage Design and Construction Code, Unitywater’s
Connections Administration Manual and any other matter Unitywater considers to be relevant;
▪ Any change to Unitywater’s existing infrastructure as required by this proposal must be carried
out at no cost to Unitywater;
▪ Lutheran Services will be required to enter into an Infrastructure Agreement with Unitywater
for the connection;
▪ The connection will attract the following costs:
– Infrastructure Agreement cost;
– Infrastructure charges;
– Live connection (quoted works) charges;
– Service connection and wastewater discharge charges.
Water Main
Sewer Rising Main
Figure 4 Unitywater Services
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2 DEVELOPMENT DETAILS
2.1 Proposed Facilities
The development details allowed for in this report are outlined below:
▪ 1. Central courtyard
▪ 2. Palliative Care building - 16 accommodation places
▪ 3. Day Respite building
▪ 4. Respite Care - 12 accommodation places plus staff / guest room (total 13)
▪ 5. Central Facilities
▪ 6. Dementia Houses – 2 x buildings each 12 accommodation places plus staff / guest room
(total 13)
▪ 7. Chapel
▪ 8. Community Hall
▪ 9. Nature Study Centre
▪ Garden / Farm areas
Table 1 Development Summary
Item Assumption No of
people
Accommodation places Palliative Care 16; Respite (13) & Dementia (2 x 55
13)
Day respite Assume 15 people per day max 15
Caretaker’s residence Existing house retained 1
Inside staff (accommodation 1 staff member per accommodation place 58
places)
Outside staff Allowance 5
Day visitors Allows for 100 seat chapel and hall to be used 100
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2.2 Population Estimates
The estimated site population is provided in Table 2 below.
Table 2 Population Estimates
Item Assumption Design EP
Accommodation places 1 EP per accommodation place 55
Day Respite 0.25 EP per patient 3.8
Caretakers residence 3 EP 3.0
Inside staff (accommodation places) 0.25 EP per staff member 14.5
Outside staff 0.25 EP per staff member 1.3
Day visitors 0.1 EP per staff member 10
Total EP 87.5
2.3 Other Site Uses
External site uses that are likely to require water are summarised in Table 3.
Table 3 External Site Uses (Northern Development Area)
Item Assumption Approx. Areas
(ha)
Roof area From Master Plan 0.74
Other impermeable area 20% of total 1.0
Landscaping (irrigated) 25% of permeable surface area 1.6
Gardens & Central Courtyard From Master Plan 0.2
Net permeable open space 1.4
(unirrigated)
Total Area 4.94
Stock:
- Chickens (no.) 20
- Cattle (no.) 4
- Horses (no.) 4
- Sheep (no.) 5
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3 POTABLE WATER SUPPLY
3.1 Proposed Potable Supply
The proposed potable water supply for the development will be as follows:
▪ Harvested roofwater will be the primary water source;
▪ A new borewater supply will be established on the site to provide full supply reliability;
▪ On-site water storage will be provided to ensure a reliable domestic supply and provide water
for fire-fighting purposes;
▪ All water will be treated to ensure it is safe for use;
▪ Treated water will be distributed using a pumped pressurised system.
3.2 Potable Water Demands
Based on the population data in Table 2 the estimated residential water demands (excluding
external uses) are provided in Table 4.
Note that the assumed water demand of 200 L/EP/day is considered to be conservative
compared with typical water usage in South East Queensland. As an aged care facility,
accommodating vulnerable members of the community, many with chronic health issues, a
secure and abundant water supply is essential. A failure of the supply, either in terms of
availability or water quality, would be unacceptable.
Table 4 Estimated Residential Water Demands
Item Assumption Value
Design EP 87.5
Average Day (AD) Water Demand (kL/day) 200 L/EP 17.4
Annual Demand (ML/yr) 6.3
Peak Day (PD) Water Demand (kL/day) 2.5 x AD 43.4
Peak Hour (PH) Water Demand (L/s) 5 x AD 1.00
3.3 Regulation of Private Drinking Water Supplies
Private Drinking Water Supply
Where treated reticulated (town) water is not available, an alternative source of drinking water is
required; this alternative supply is referred to as a private drinking water supply. Currently, under
the Public Health Act 2005, local government is responsible for the regulation of private drinking
water supplies.
The water supply will be designed to meet Council requirements for a Private Water Supply
Water Risk Management Plan
From 1 February 2017, the Public Health Act 2005 and the Public Health Regulation 2005 were
amended to improve water risk management practices in healthcare and aged care facilities.
These amendments establish a legislative framework to improve the management and control of
health risks associated with the supply and use of water in hospitals and residential aged care
facilities (in particular health risks associated with Legionella bacteria) and provide for greater
public transparency of water testing activities being undertaken by these facilities.
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From February 2017, the requirements apply to Queensland Health hospitals with inpatients,
Queensland Health operated residential aged care facilities and licenced private health facilities,
however, the requirements are expected to be extended to the private residential aged care
sector at a later date, following consultation with the sector.
Under the new regulations, facilities will be required to:
▪ Develop a water risk management plan;
▪ Ensure the water risk management plan is complied with;
▪ Notify the Department of Health if Legionella is detected; and
▪ Submit periodic reports summarising the results of Legionella tests.
These requirements will apply regardless of whether the facility has a private supply or is
connected to a mains service.
3.4 Roofwater Water Balance
A detailed water balance model has been developed to assess the potential for roofwater to meet
the requirements of the development.
An indication of historical site rainfall is provided in Table 5.
Table 5 Rainfall Data – Black Mountain
Parameter Value
Annual Average Rainfall 1,585 mm
Range (5%ile – 95%ile) 975 – 2,287 mm
(-38% to +46% of average)
Monthly Average Rainfall Average 138 mm
Range 58 mm (Sept) to 232 mm (Feb)
The daily roofwater model was developed as follows:
▪ 100 years of daily rainfall data was used (01/01/1917 to 31/12/2016 from the Bureau of
Meteorology’s Data Drill);
▪ Effective connected roof area = 90% of total;
▪ Initial rainfall losses 2mm;
▪ Average demand as per Table 4; varied +/- 25% seasonally;
▪ It is assumed that tanks will be provided at each building pumping to a central raw water
storage and water treatment plant.
The results of the modelling are shown in Figure 5 and summarised in Table 6. The analysis
indicates that a total of approximately 850 kL of roofwater storage will be required to supply all but
1,000 kL/year of demand on average (ie 85% reliability). Note that this is an average value and
the actual shortfall is expected to vary between zero and 3.2 ML/yr depending on seasonal
rainfall.
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Table 6 Roofwater Balance Model Results
Parameter Results
Available Roof Area (m 2) 8,000
Supply Reliability 80% 85%
Distributed Tank Volume (kL) 400 400
Central Tank Volume (kL) 200 450
Total Tank Volume (kL) 600 850
Average Annual Demand (ML/yr) 6.3
Average Annual Volume Supplied (ML/yr) 5.1 5.4
Average Annual Shortfall (ML/yr) 1.3 1.0
Proportion of Available Rainfall Captured 60% 63%
Cooroy Care Farm
Roofwater Water Balance
7,000 100%
Annual Demand
90%
6,000
80%
85%
80%
5,000
Average Volume (ML/year)
70%
Demand Met
with Rainwater
60%
4,000
Top Line: 400 kL Distributed Storage
50%
% Rainfall Middle Line : 200 kL Distributed Storage
Captured Bottom Line: 100 kL Distributed Storage
3,000
40%
30%
2,000
Supply
Shortfall 20%
1,000
10%
0 0%
0 200 400 600 800 1,000 1,200 1,400
Total Storage Volume (kL)
Figure 5 Roofwater Balance Model Results
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3.5 Borewater Supply
A new borewater supply is to be established on the site.
Advice has been obtained from a local water bore driller with experience in this area indicating
that it should be possible to develop a groundwater bore on this site. The bore is likely to be
located on the ridgeline to the northern edge of the site, with a depth of approximately 60m.
The water is expected to be good quality though not suitable for consumption without filtration
and disinfection.
Bore yields of between 50 to 100 kL per day are expected, ie more than adequate as a reserve
supply to the development.
Investigations are on-going to locate and establish a suitable water supply bore at the site.
3.6 Water Treatment
The harvested roofwater will require treatment before use as it will contain contaminants washed
from roof surfaces and gutters, including leaf litter, dust and animal droppings. As noted above,
the groundwater will also require disinfection. Combined roofwater / borewater treatment will
include:
▪ Coarse filtration to remove larger particles;
▪ Pressure media filtration to remove fine solids to manage turbidity;
▪ Activated carbon filtration to remove any organic chemicals;
▪ Ultraviolet (UV) irradiation for primary disinfection;
▪ Chlorine (as sodium hypochlorite) dosing as a secondary disinfectant and to provide residual
protection in the distribution system.
3.7 Design Details
The proposed water supply configuration includes:
▪ Provide rainwater tanks at each building with water pumped to a central raw water storage;
▪ Provide an on-site borewater supply pumping to the raw water storage;
▪ Provide a central roofwater treatment plant with treated water storage tank;
▪ Distribute the water to the buildings using a pumped pressure system.
The following system configuration has been adopted. The system arrangement and the location
of central water storage facilities and treatment plant is indicated in Appendix B – Figure B1.
Table 7 Potable Water Supply Configuration
Component Details
Target supply reliability 85%
Rainwater storage volume 850 kL total storage
(approx. 50 kL at each major building and 25 kL at
each minor building plus a central 450 kL raw water
tank
Borewater backup Single on-site bore with an equipped capacity of
around 1 L/s plus rising main to raw water tanks
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Component Details
Firefighting reserve Approx 375 kL incorporated into the raw water storage
tanks (refer to BRW Hydraulic and Fire Services report)
Transfer pumps As required to optimise transfer between the distributed
storages and the raw water tank
Collection pipelines to raw water storage As required
Water treatment plant capacity 50 kL/day
Treated water storage 100 kL
Distribution pumps Variable speed
Distribution pipelines to each building As required
Fire pumps Diesel / electric as required
Fire main and hydrants As required
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4 NON-POTABLE WATER SUPPLY
4.1 Proposed Non-Potable Supply
Dam water from the on-site dams will be harvested for irrigation of gardens and landscaping and
for watering stock.
4.2 Non-Potable Water Demands
External water demands will depend on the areas under irrigation (landscaping and cropping) and
the type of crop grown, and the number and type of stock kept on the site. Indicative demand
rates are provided in Table 8.
Table 8 Non-Potable Water Demand Rates
Use Demand Rate
Average garden water demand (indicative) 2 mm/day (lawn)
2 mm/day (landscaping)
3 mm/day (trees)
Average crop water demand (indicative) 3 mm/day (vegetables)
3 mm/day (other small crops)
3 mm/day (fruit trees)
Stock water demand (indicative) 40 - 100 L/day (cattle)
40 - 50 L/day (horses)
2 - 6 L/day (sheep)
The estimated demand for non-potable water, based on the assumed land uses in Table 3 and
the demand rates in Table 8, is provided in Table 9. Note that these estimates are conservative
and will depend on the nature of the landscaping developed on the site and how this is managed.
Table 9 Average External Water Demands
Item Assumption Average Demand
(ML/yr)
Gardens / Courtyard 3 mm/day 1.8
Landscaping 2 mm/day 11.7
Stock:
- Chickens 1 L/day ea 0.007
- Cattle 100 L/day ea 0.15
- Horses 50 L/day ea 0.07
- Sheep 5 L/day ea 0.009
Totals 13.7
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4.3 Supply Reliability
The non-potable supply is unlikely to be 100% reliable under all weather conditions, and is likely
to run short of water in very dry periods. Also, the northern dam will have a role as a water feature
within the site landscaping, limiting its use as a water source. Nevertheless, it is understood that
the southern dam is believed to be spring-fed, which will improve reliability. If dam water levels
become low then landscape irrigation will need to be reduced to conserve water.
4.4 Non-Potable Water Treatment
It is assumed that the dam water supply will require minimal treatment to be suitable for the
proposed uses. The only treatment recommended is in-line self-backwashing filtration to minimise
the amount of solids in the system and to avoid blockages in irrigation systems.
4.5 Design Details
A possible configuration includes:
• Pump water from the on-site dams to a central storage tank for distribution to use areas;
• Provide basic treatment (in-line filtration) at the distribution pumps to protect irrigation
systems;
• Distribute the water using a pumped pressure system.
For the purposes of preliminary design, the following system configuration has been adopted. The
proposed scheme configuration is indicated in Appendix B – Figure B2.
Table 10 Non-Potable Water Supply Configuration
Component Details
Dam pumps Single electric pump approx 1-2 L/s capacity to storage
tank
Pipelines to storage tank As required
Dam water storage volume Approx. 50 kL (depending on irrigated area)
Water treatment plant capacity In-line self-backwashing filter sized to suit distribution
pump
Distribution pumps Variable speed; capacity as required to supply irrigation
areas and meet design irrigation zoning and scheduling
Distribution pipelines to irrigation areas As required
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5 WASTEWATER MANAGEMENT
5.1 Proposed Wastewater System
The site wastewater systems will include:
▪ Gravity collection to a central private sewage pumping station;
▪ A direct pumped connection into the existing Unitywater rising main in Rose Gum Road.
5.2 Wastewater Flows
Based on the population data in Table 2 the estimated residential wastewater flows are provided
in Table 11.
Table 11 Estimated Wastewater Flows
Item Assumption Value
Design EP 87.5
Average Dry Weather Flow (ADWF) (kL/day) 200 L/EP 17.4
Annual Flow (ML/yr) 6.3
Peak Dry Weather Flow (kL/day) 2 x AD 34.7
Peak Wet Weather Flow (PWWF) (L/s) 4 x AD 1.00
5.3 Regulatory Requirements
All internal wastewater collection and pumping system will require Council plumbing approval.
The connection to the Unitywater rising main will be provided in accordance with Unitywater’s
requirements.
5.4 Connection to Unitywater Rising Main
Connection to the Unitywater rising main will be completed in accordance with Unitywater
requirements taking into account:
▪ Operating pressures within the rising main;
▪ Any pumping constraints imposed by Unitywater;
▪ Any specific connection requirements, such as connection type, valving arrangements and
backflow prevention requirements.
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24 May 2018 Ref. No. 2017.0616
5.5 Design Details
The following system configuration is proposed. The system arrangement and indicative location
for the private pumping station is indicated in Appendix B – Figure B3.
Table 12 Wastewater System Configuration – Direct Connection to Unitywater Rising Main
Component Details
Wastewater collection system As required to carry wastewater from each
building to the central pumping station
Emergency storage Approx 24 hours storage (50 – 100 kL) to store
wastewater in the event of a problem with the
rising main connection
Wastewater pumping station Duty / standby submersible macerator sewage
pumps each capable of 1.5 to 2 L/s pumping
against the rising main pressure
Wastewater rising main to Unitywater Approx 50 mm diameter as required
rising main
Connection to Unitywater rising main To Unitywater requirements
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24 May 2018 Ref. No. 2017.0616
APPENDIX A
UNITYWATER SERVICE ADVICE
NOTICE
Page 25
Head Office:
Ground Floor, 33 King Street
Caboolture QLD 4510
Mailing Address:
PO Box 953, Caboolture QLD 4510
1300 0 UNITY (1300 086 489)
www.unitywater.com
ABN: 89 791 717 472
Services Advice Notice
South-East Queensland Water (Distribution and Retail Restructuring) Act 2009
Notice Details
SAN No: 201801292
Street Address: Rose Gum Road, Cooroy Qld 4563
Property Description: Lots 1 & 2 RP862537, and Lot 3 SP235191
Local Government Area: Noosa Shire Council
Date of Issue: 19 April 2018
Application Type: Other
Assessment Officer: Andrew Matthews
Proposed Development: 170 Bed Aged Care Facility – Sewer Connection to
Existing Unitywater Sewer Rising Main (no water
connection available)
This notice is provided in accordance with Section 99BRAC of the South-East Queensland Water
(Distribution and Retail Restructuring) Act 2009.
Please note that the Service Advice Notice is advisory only and does not represent approval of
the connection or any associated works. The Service Advice Notice is valid for 6 months from
the date of this of this notice.
Application must be made to Unitywater for approval of the connection or associated works.
• This development site is located outside Unitywater’s water supply and sewerage
connection area. The developer will be required to submit with any connection
application, a sewerage network analysis by a suitably qualified and experienced
consultant, outlining the impacts on the existing network. The sewer network
analysis shall cover, sewerage pump stations and rising mains from SPS-POM001
to the Cooroy Sewerage Treatment Plant, including SPS-CRY020 and SPS-
CRY009. The analysis shall include the identification of any upgrading works
required on existing systems to accommodate the proposed development. The
developer is responsible for all costs associated with the installation of identified
upgrades to the network.
Page 1 of 2
Unitywater is a statutory authority that provides water and sewerage services for the Unitywater has certification to
OH&S ISO 4801:2001 Reg No 4260
Moreton Bay, Sunshine Coast and Noosa Council areas. Environmental ISO 14001:2004 Reg No 4259
Quality Systems ISO 9001:2008 Reg No 4258
Revision No: 2 Effective Date: 19/02/2015 Next Review Date:19/02/2018
Page 26
• A free copy of Unitywater’s network model for this location is available to the developer
on request subject to conditions. Please contact Unit Leader - Network Modelling, Ken
Goraya on Ken Goraya at [email protected]
• The required connection application type for this development is “other connection
application that includes application/s for ‘network works”.
• Details of the connection application process, development related works and fees
applicable please refer to Unitywater websites at
http://www.unitywater.com/Building-and-development.aspx. and
http://www.unitywater.com/Development/Fees-and-charges.aspx
• Payment of Levied Charges will be required in accordance with Unitywater’s
Infrastructure Charges for sewerage.
• For any sewerage infrastructure required to be constructed on property that is not
owned or controlled by the Applicant, it is the Applicant’s or developer’s
responsibility to gain the necessary consents to install that infrastructure.
• Where works associated with this Connection Application results in works to be
carried out in a publicly controlled place, such as a road; it is the Applicants
responsibility to gain the necessary approvals from the relevant authority (i.e.
Council, Department of Transport and Main Roads) prior to starting any such
works.
• All proposed sewerage works must be designed and constructed in accordance
with the South East Queensland Water Supply and Sewerage Design and
Construction Code, Unitywater’s Connections Administration Manual and any other
matter Unitywater considers to be relevant to the connection or supply of its water
services or wastewater services.
• Any change to Unitywater’s existing infrastructure as required by this proposal
must be carried out at no cost to Unitywater.
• Easements will be required in accordance with the South East Queensland Water
Supply and Sewerage Design and Construction Code over sewerage mains
located in private property boundaries.
If you have any queries about the advice please contact Unitywater at
[email protected] or by phone on 1300 086 489.
Yours sincerely
Andrew Matthews
Principal Development Engineer
Development Services
Page 2 of 2
Unitywater is a statutory authority that provides water and sewerage services for the Unitywater has certification to
OH&S ISO 4801:2001 Reg No 4260
Moreton Bay, Sunshine Coast and Noosa Council areas. Environmental ISO 14001:2004 Reg No 4259
Quality Systems ISO 9001:2008 Reg No 4258
Revision No: 2 Effective Date: 19/02/2015 Next Review Date: 19/02/2018
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PF80 - Cooroy Care Farm
24 May 2018 Ref. No. 2017.0616
APPENDIX B
SKETCH PLANS
Page 28
KEY
AREA SCHEDULE
1. Central courtyard with chapel and hall
2. Palliative Care
BUILDING 3. Day Respite
4. Respite Care
Dementia Care 688.8m² 5. Central Services
Telephone +61 7 3852 2525
T 6. Dementia House Facsimile +61 7 3852 2544
Respite Care 688.8m² EE www.bvn.com.au
TR 7. Chapel
MS
Day Respite 492.01m² EL 8. Community Hall
ROSE GUM RO
Palliative Care 1367.4m² AD 9. Nature Study Centre INTELLECTUAL PROPERTY
10. Substation COPYRIGHT BVN ARCHITECTURE PTY LIMITED. UNLESS OTHERWISE
AGREED IN WRITING;ALL RIGHTS TO THIS DOCUMENT ARE SUBJECT TO
PAYMENT IN FULL OF ALL BVN CHARGES;THIS DOCUMENT MAY ONLY
Central Services 328.99m² 11. Grounds Service Store BE USED FOR THE EXPRESS PURPOSE AND PROJECT FOR WHICH IT
HAS BEEN CREATED AND DELIVERED, AS NOTIFIED IN WRITING BY
BVN;AND THIS DOCUMENT MAY NOT BE OTHERWISE USED, OR COPIED.
12. Fire Tanks/Pump Room ANY UNAUTHORISED USE OF THIS DOCUMENT IS AT THE USER'S SOLE
Chapel 275.84m² RISK AND WITHOUT LIMITING BVN'S RIGHTS THE USER RELEASES AND
13. Caretaker's Residence / Existing Bldg INDEMNIFIES BVN FROM AND AGAINST ALL LOSS SO ARISING.
Community Hall 272.14m² 14. Aviary NOTE
CONTRACTOR TO CHECK AND VERIFY ALL DIMENSIONS ON SITE PRIOR
TO COMMENCEMENT OF WORK OR PREPARATION OF SHOP DRAWINGS.
15. Kitchen Gardens DO NOT SCALE THIS DRAWING
Existing Residence 193.84m²
16. Flower Garden ISSUE DATE FOR
10000
SETBACK
10 17. Animal Yard
Total GFA 4996.62m² 12 CARPARKS
18. Stable
19 CARPARKS
3 19. Chicken Pen
Carpark Bays 53 20. Fire Pit
5
19
2 18 17 5 PR
KEY OP
22 CARPARKS
ER
TY
BO
UN
DA
Existing Vegetation Footprint 16 RY
4
12 13
Vegetation Regeneration Zone
7
1
8
15
6
20 CONSULTANT
-
10000
-
SETBACK CONSULTANT
-
6 -
4 CONSULTANT
Notes: -
S 11 -
ES CONSULTANT
1. All internal ACC 15
9 E -
FIR -
plumbing to AS3500 D/ PROJECT MANAGER
ROA 10000
-
and Council plumbing E SETBACK -
VIC CLIENT
approval. S ER
2. Proposed water
LUTHERAN SERVICES
supply bore yet to be CLIENT NUMBER
established. 1701009
PROJECT
BIOSPHERIC CARE FARM COMMUNITY
BLACK MOUNTAIN, COOROY
BVN PROJECT NUMBER
1701009
LEGEND DRAWING KEY
Water Supply Bore (Indicative Location)
Untreated Borewater Rising Main
Indicative rainwater tank and pump location (20 - 30 kL each) TRUE NORTH PROJECT NORTH
BR
UC
EH GRAPHIC SCALE
Untreated Roofwater Rising Main
IG
HW 0 2000 5000
AY SCALE
Central Storage Tanks (Including Fire-fighting Storage) FIGURE B1
1 : 1000@A1
STATUS
Water Treatment Plant and Distribution Pumps COOROY CARE FARM PD
DRAWING
Treated Water Distribution (not shown)
PRELIMINARY POTABLE
SITE PLAN Bligh Tanner Pty Ltd SITE PLAN - STAGE 1
ISSUE
COOROY CARE FARM /
May 2018
WATER SUPPLY LAYOUT
AR-A-XX-01
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Page 29
KEY
AREA SCHEDULE
1. Central courtyard with chapel and hall
2. Palliative Care
BUILDING 3. Day Respite
4. Respite Care
Dementia Care 688.8m² 5. Central Services
Telephone +61 7 3852 2525
T 6. Dementia House Facsimile +61 7 3852 2544
Respite Care 688.8m² EE www.bvn.com.au
TR 7. Chapel
MS
Day Respite 492.01m² EL 8. Community Hall
ROSE GUM RO
Palliative Care 1367.4m² AD 9. Nature Study Centre INTELLECTUAL PROPERTY
10. Substation COPYRIGHT BVN ARCHITECTURE PTY LIMITED. UNLESS OTHERWISE
AGREED IN WRITING;ALL RIGHTS TO THIS DOCUMENT ARE SUBJECT TO
PAYMENT IN FULL OF ALL BVN CHARGES;THIS DOCUMENT MAY ONLY
Central Services 328.99m² 11. Grounds Service Store BE USED FOR THE EXPRESS PURPOSE AND PROJECT FOR WHICH IT
HAS BEEN CREATED AND DELIVERED, AS NOTIFIED IN WRITING BY
BVN;AND THIS DOCUMENT MAY NOT BE OTHERWISE USED, OR COPIED.
12. Fire Tanks/Pump Room ANY UNAUTHORISED USE OF THIS DOCUMENT IS AT THE USER'S SOLE
Chapel 275.84m² RISK AND WITHOUT LIMITING BVN'S RIGHTS THE USER RELEASES AND
13. Caretaker's Residence / Existing Bldg INDEMNIFIES BVN FROM AND AGAINST ALL LOSS SO ARISING.
Community Hall 272.14m² 14. Aviary NOTE
CONTRACTOR TO CHECK AND VERIFY ALL DIMENSIONS ON SITE PRIOR
TO COMMENCEMENT OF WORK OR PREPARATION OF SHOP DRAWINGS.
15. Kitchen Gardens DO NOT SCALE THIS DRAWING
Existing Residence 193.84m²
16. Flower Garden ISSUE DATE FOR
10000
SETBACK
10 17. Animal Yard
Total GFA 4996.62m² 12 CARPARKS
18. Stable
19 CARPARKS
3 19. Chicken Pen
Carpark Bays 53 20. Fire Pit
5
19
2 18 17 5 PR
KEY OP
22 CARPARKS
ER
TY
BO
UN
DA
Existing Vegetation Footprint 16 RY
4
12 13
Vegetation Regeneration Zone
7
1
8
15
6
20 CONSULTANT
-
10000
-
SETBACK CONSULTANT
-
6 -
4 CONSULTANT
-
S 11 -
Notes: ES CONSULTANT
ACC 15
9 E -
1. All internal FIR -
D/ PROJECT MANAGER
ROA 10000
-
plumbing to E SETBACK -
VIC CLIENT
AS3500 and S ER
Council plumbing
approval. LUTHERAN SERVICES
CLIENT NUMBER
1701009
PROJECT
BIOSPHERIC CARE FARM COMMUNITY
BLACK MOUNTAIN, COOROY
BVN PROJECT NUMBER
1701009
DRAWING KEY
LEGEND TRUE NORTH PROJECT NORTH
BR
Dam Water Pump UC
EH GRAPHIC SCALE
IG
HW 0 2000 5000
Damwater Rising Main AY FIGURE B2 SCALE
1 : 1000@A1
Central Storage Tank and Distribution Pumps STATUS
COOROY CARE FARM PD
Treated Water Distribution (not shown) DRAWING
PRELIMINARY NON-POTABLE
SITE PLAN Bligh Tanner Pty Ltd SITE PLAN - STAGE 1
ISSUE
COOROY CARE FARM /
May 2018 WATER SUPPLY LAYOUT
AR-A-XX-01
C:\REVIT_LOCAL2017\1701009_Care Farm_Site File_Masterplan_2017_bhdoherty.rvt 30/04/2018 12:52:48 PM
Page 30
Connection to KEY
AREA SCHEDULE
Unitywater Rising 1. Central courtyard with chapel and hall
Main to Their 2. Palliative Care
BUILDING 3. Day Respite
Requirements 4. Respite Care
Dementia Care 688.8m² 5. Central Services
Telephone +61 7 3852 2525
T 6. Dementia House Facsimile +61 7 3852 2544
Respite Care 688.8m² EE www.bvn.com.au
TR 7. Chapel
MS
Day Respite 492.01m² EL 8. Community Hall
ROSE GUM RO
Palliative Care 1367.4m² AD 9. Nature Study Centre INTELLECTUAL PROPERTY
10. Substation COPYRIGHT BVN ARCHITECTURE PTY LIMITED. UNLESS OTHERWISE
AGREED IN WRITING;ALL RIGHTS TO THIS DOCUMENT ARE SUBJECT TO
PAYMENT IN FULL OF ALL BVN CHARGES;THIS DOCUMENT MAY ONLY
Central Services 328.99m² 11. Grounds Service Store BE USED FOR THE EXPRESS PURPOSE AND PROJECT FOR WHICH IT
HAS BEEN CREATED AND DELIVERED, AS NOTIFIED IN WRITING BY
BVN;AND THIS DOCUMENT MAY NOT BE OTHERWISE USED, OR COPIED.
12. Fire Tanks/Pump Room ANY UNAUTHORISED USE OF THIS DOCUMENT IS AT THE USER'S SOLE
Chapel 275.84m² RISK AND WITHOUT LIMITING BVN'S RIGHTS THE USER RELEASES AND
13. Caretaker's Residence / Existing Bldg INDEMNIFIES BVN FROM AND AGAINST ALL LOSS SO ARISING.
Community Hall 272.14m² 14. Aviary NOTE
CONTRACTOR TO CHECK AND VERIFY ALL DIMENSIONS ON SITE PRIOR
TO COMMENCEMENT OF WORK OR PREPARATION OF SHOP DRAWINGS.
15. Kitchen Gardens DO NOT SCALE THIS DRAWING
Existing Residence 193.84m²
16. Flower Garden ISSUE DATE FOR
10000
SETBACK
10 17. Animal Yard
Total GFA 4996.62m² 12 CARPARKS
18. Stable
19 CARPARKS
3 19. Chicken Pen
Carpark Bays 53 20. Fire Pit
5
19
2 18 17 5 PR
KEY OP
22 CARPARKS
ER
TY
BO
UN
DA
Existing Vegetation Footprint 16 RY
4
12 13
Vegetation Regeneration Zone
7
1
8
15
Notes:
6
1. All internal plumbing to 20 CONSULTANT
-
10000
AS3500 and Council plumbing -
SETBACK CONSULTANT
approval. -
6 -
4 2. Private pumping station to CONSULTANT
-
S 11 -
Council and Unitywater ES CONSULTANT
ACC 15
9 -
IRE -
requirements. D /F PROJECT MANAGER
3. Connection into Unitywater OA 10000
-
CER -
I SETBACK
CLIENT
rising main subject to Unitywater SERV
approval and constructed to
Unitywater requirements. LUTHERAN SERVICES
CLIENT NUMBER
1701009
PROJECT
BIOSPHERIC CARE FARM COMMUNITY
BLACK MOUNTAIN, COOROY
BVN PROJECT NUMBER
1701009
DRAWING KEY
LEGEND
Stage 1 Gravity Sewer
TRUE NORTH PROJECT NORTH
Possible Future
BR
U
Stage 2 Gravity Sewer
CE GRAPHIC SCALE
IG H
HW
Private Pumping Station 0 2000 5000
A Y SCALE
Private Rising Main
FIGURE B3 1 : 1000@A1
STATUS
COOROY CARE FARM PD
Unitywater Rising Main DRAWING
Bligh Tanner Pty Ltd
PRELIMINARY SEWERAGE
SITE PLAN SITE PLAN - STAGE 1
ISSUE
COOROY CARE FARM /
May 2018 LAYOUT AR-A-XX-01
C:\REVIT_LOCAL2017\1701009_Care Farm_Site File_Masterplan_2017_bhdoherty.rvt 30/04/2018 12:52:48 PM
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Lutheran Services Page 3 of 3
PF80 - Cooroy Care Farm
24 May 2018 Ref. No. 2017.0616
Level 9, 269 Wickham St
PO Box 612 Fortitude Valley
|QLD 4006, Australia
T +61 7 3251 8555
F +61 7 3251 8599
[email protected]
www.blightanner.com.au