An informational meeting will be held at the Waimea Community Center tonight to explain the emergency action plan components for the three Waikoloa 50 million-gallon reservoirs in South Kohala.

Under state law, the reservoirs are classified as dams, and emergency action plans are required to educate the public about dam safety and to guide emergency responses.

The county Department of Water Supply is working with the state Department of Land and Natural Resources and Hirata and Associates to update the existing emergency action plan to meet new legal requirements prompted in part by the Ka Loko Dam failure on Kaua'i in March 2006.

The presentation will start at 7:30 p.m. and will cover the five-step process involved in an emergency plan, which includes detection, response levels, notification, expected action and event termination.