WAM Modeling for the Okura Basin

SWET contracted with the National Institute of Water & Atmospheric Research Ltd (NIWA) in New Zealand to do a comprehensive watershed assessment of a large basin targeted for development just north of Auckland The purpose of the assessment was to develop a plan for acceptable levels of development that would not adversely impact the streams and downstream estuary. A variety of scenarios were run to evaluate impacts during both construction and post construction phases. The study clearly showed that the amount of construction within the basin had to be regulated to prevent significant impacts; however, over time, the basin could be developed if done properly with critical areas protected.