A floodgate being tested in a local farm drain is showing encouraging results, recording an increase in pH levels in the soil and drain water to almost seven, compared with nearby highly acidic drains that have pH levels as low as three. The floodgate was modified so tidal water could flush the drain water and neutralise acid when the build-up became significant. Masters student William Glamore has been monitoring the test weir, testing for acidity and salinity once a month and maintaining the dataloggers attached to the floodgate. Research scientist Dr Anand Tularam analyses the data, using sophisticated computer models. Professor Indraratna said the fisheries industry would benefit from reducing acid sulfate soils because of the threat acid water posed to marine life.
Red spots are a symptom of low pH attack and produce allergy-like symptoms.
Professor Indraratna said reducing the acid level in farm drains at the Berry property meant better quality water would enter nearby Broughton Creek which flows to coastal waters.