 A barrier to divert the nutrient rich waters of Lake Rotorua into the Kaituna River was completed in late 2008.The Bay of Plenty Regional Council expected to see improvement in lake water quality within five years  and the Rotorua Te Arawa Lakes Program reported in 2013 that the intervention has significantly improved water quality.Water quality is the highest it has been in decades, on track to meet targets set by the Program to meet community expectations.