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Rotorua District Council Case Study
Abbey Systems supplied and installed a turnkey SCADA system for the monitoring and control of the Rotorua District wastewater network.
Rotorua is found on the shores of Lake Rotorua in the central North Island of
New Zealand. The surrounding area is a geothermal wonderland, with geysers, boiling mud pools, and steaming craters, accompanied by the pervasive smell of sulphur. Rotorua is also a showcase of Maori cultural activities, a centre for tourism and a place of extraordinary natural beauty. It is surrounded by volcanoes, lakes, parks and recreational areas, and is a great place to visit for both locals and tourists.
When the local Council needed a well proven SCADA system to replace their old system to manage the city’s wastewater network in 2005 they chose Abbey Systems products. From the beginning the Rotorua network was designed for standardization and a high level of automation and reporting.
- All pump stations use an Analogue Ultrasonic transducer for well level control and a standard suite of 2 pump programs is used at each site.
- Swampfox RTUs at all 2 pump sites are wired the same way.
- Swampfox RTU controls the pump start & stop, duty changeover and pump 2nd starts, saving the added cost of a dedicated level controller or PLC.
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- Performance stats for each site are datalogged, including pump run hours, # starts, inflow, security, and retrieved daily by the SCADA Master.
- All RTUs are “conformally coated” for protection against Rotorua's high level of hydrogen sulphide gas in the atmosphere and methane from pump station activity.
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