This report presents the first stage of an instream flow
assessment for the Lower Ruamahanga River. The overall
objective of the assessment is to determine the instream
flow requirements of the river, to assist with Greater
Wellington's review of water allocation policies for the
Ruamahanga River downstream of the Waiohine River
confluence.

This Stage 1 report: analyses the existing hydrological and
water quality data for the river, identifies instream values
of the river and threats to those values, suggests instream
flow objectives, and proposes scientific investigations and
next steps for the instream flow assessment of the Lower
Ruamahanga River.