Overview
Monkey Mia wastewater treatment plant in Western Australia serves a small population of 6 with secondary treatment. It discharges 1.44 megalitres annually near the coast of Shark Bay, a UNESCO World Heritage site.
Monkey Mia wastewater treatment plant is located in the remote coastal town of Monkey Mia, Western Australia, within the Shire of Shark Bay. The facility serves a very small population of 6 people, reflecting the area's low-density tourism and residential character. The plant provides secondary treatment, which is appropriate for its scale and remote coastal setting. As a small facility in a sensitive marine environment, it operates under Australian state and federal regulations that govern wastewater discharge to protect the surrounding ecosystem. The treated effluent is discharged into the vicinity of Shark Bay, a large, shallow bay on the western coast of Australia. Shark Bay is a globally significant marine environment known for its seagrass meadows, dugong population, and stromatolites. The plant's discharge must be carefully managed to avoid impacting these sensitive habitats.
Environmental context
The plant discharges into the Shark Bay area, which is a large embayment on the Indian Ocean coast of Western Australia. Shark Bay is a shallow, nutrient-poor marine system that supports extensive seagrass beds, which are critical habitat for dugongs and green turtles. The bay also contains hypersaline zones and microbialite formations. Downstream, the water flows into the Indian Ocean. The plant's small discharge volume and secondary treatment help minimize nutrient loading in this ecologically sensitive environment.
Frequently asked questions
The plant is located in Monkey Mia, Western Australia, along Wulyibidi Yaninyina Trail, within the Shire of Shark Bay.
The plant serves a very small population of 6 people, reflecting the remote coastal community and tourism facilities in the area.
The plant provides secondary treatment and discharges treated effluent into the Shark Bay area, a sensitive marine environment on the Indian Ocean coast.
In Australia, wastewater treatment is regulated by state and territory environmental protection agencies. For Western Australia, the Department of Water and Environmental Regulation issues licenses under the Environmental Protection Act 1986. Small coastal plants like Monkey Mia must meet discharge quality standards to protect marine ecosystems.
For such a small population, secondary treatment is typical and sufficient to reduce organic matter and pathogens. In sensitive coastal areas, additional nutrient removal may be required, but the low volume of discharge (1.44 ML/year) minimizes environmental impact.
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