An automated sensor platform that continuously monitors multiple aspects of water quality, sending data back to the Council every 30 minutes, has performed well since being installed in the Mangati Stream at Bell Block nearly a year ago, the Consents and Regulatory Committee was told.
The device has been trialled as a result of increasing national and local expectations for detailed information about water quality. It monitors acidity and oxidation, conductivity and temperature and dissolved oxygen levels, and the data it collects can also be used to derive levels of suspended solids and dissolved solids.
The machine cleans its own sensors after taking each measurement, and the device has proved to be reliable, robust and accurate. The Council will consider investing in further technology to enable the device to also monitor nutrient levels. Council officers are also using a smaller, hand-held version of the device for site-specific investigations elsewhere.
- Taranaki Regional Council