2021 Winner: Outback Date Plantation
Outback Date Plantation with Lucern Production
Queensland, Australia – Honor Award, Water Management, Planning & Analysis
CONSULTANT
Jim Phillips, JP Water P/L
PROJECT OVERVIEW
- Pastor Mark Hampel bought a property in at Charleville, Queensland, Australia to grow dates
- It is an ideal area for growing dates, hot, dry, sandy soil. But dates too need irrigation and water in this area is usually a scarce commodity. Then it rains, in buckets and floods
- As part of the purchase, Mark negotiated with the Murweh Regional Council to utilize the treated effluent from the Charleville township sewerage treatment plant
- Dates grow slowly and, even though he had transplanted several mature trees, it would be 5+ years before the plantation would be in production
- Date palms do not like getting their trunks wet as it causes pest and disease damage. Lucern (alfalfa) on the other hand likes regular watering, usually by spray
- Turning the property in to a functioning plantation was always going to be a challenge and given that Pastor’s wages are not that high, had to be achieved on a tight budget
PROJECT NARRATIVE
- The Plantation irrigation had to be capable of meeting the following:
- Servicing two differing crop types, palms, and pasture
- Keeping the palm trunks dry
- Staying within a water budget
- Remote operation
- The unavailability of electrical power
- Population hazards (Theft, vandalism etc.)
- Turning the property in to a functioning plantation was always going to be a challenge and given that Pastor’s wages are not that high, had to be achieved on a tight budget
- The treated effluent was channeled down to a sump, a holding lagoon, reed bed filter and finally a coarse gravel filter bed
- From the sump, the semi filtered effluent was pumped into two holding tanks using a solar powered pump
- The effluent was further treated in the tanks before being fed into the diesel centrifugal pump
- Discharge from the centrifugal irrigation pump was passed through media filters then out into the DN100 PVC main
- The plantation was divided up into 12 date irrigation areas and 13 lucern (alfalfa) areas
ROLE OF THE IRRIGATION CONSULTANT
- Calculation of the Peak Irrigation Requirement for both crops
- Drip emitter flow rate and spacing recommendations based on the outcome of the PIR calculations and soil considerations for both crops
- Hydraulic design works.
- Initial and final storage tank capacity
- Control system (GoldTec Oasis, hydraulic)
- Oversight of initial installation of zone headworks, mainline thrust blocking, filter installation and pump container
- Detailed Bill of Materials and suitable suppliers
- Vetting of tenders for supply and responding to Requests for Information from suppliers.
- Project commissioning
A solar powered pump moves water from the sump to storage tanks