Updated 3rd May 2013
Guest Presentation by Prof. David Hamilton, Waikato University
BOP Regional Council Position Statements
Various Mediation Meetings were held during 2011. Consent Condition amendments have since been agreed between the Parties.
Background: The Submissions Consents Hearing was held at the Energy Events Centre, Rotorua 6-10 December 2010. The commissioners ruling was notified in late January 2011. A period of 15 working days was allowed during which an appeal could be lodged by a previously submitting party. Two parties subsequently appealed this decision.
Previously, a Public Meeting was held Sunday 26 September at which the Lake Rotoiti Community Assn (LRCA) executive was mandated to submit in support of the BOP Regional Council (formerly EBOP) consent application for the Okere Gates and Ohau Weir, as notified on Monday 13 September. Supplementary conditions to that support were also mandated, to be submitted as deemed appropriate by the LRCA Executive Committee.
The basis of the BOP Regional Council proposal is summarised in a recent LRCA newsletter, an excerpt of which can be downloaded from the adjacent submenu on this website.
Four consents required to operate the Okere Gates and Ohau Weir were due to expire 30 June 2010. An interim application was lodged by EBOP (Rivers and Drainage Group, as consent holder) 18 December 2009, to permit continued operation under existing consents until such time as revised operating parameters are finalised. The latest EBOP proposal (refer submenu) is somewhat closer to the Status Quo than had been the case with proposals in late 2009.
From a water quality perspective, concern focuses on the impact of managed lake level fluctuations upon efficient operation of the $10m Ohau Diversion Wall – computer modeling for this by Waikato University is referenced as part of the consent application and AEE Report (Assessment of Environmental Effects).
– A Trial for Lake Rotoehu
Occasional temperature stratification of the Rotorua lakes, particularly during summer, is responsible for deoxygentaion of deeper waters and the consequent release of nutrient from the sediments. Trial work to mix the water column by artificial aeration shows some promise of reducing stratification.
The restoration of water quality for Lake Rotorua presents a considerable challenge. The elimination of dairy-farming from the Lake Rotorua catchment need not be a prerequisite – indeed, the adoption of best-practice complemented by other sensible land-use change can result in a retention of most dairy-farming, and a boost to the local economy. The exciting thing is that the knowledge and technology to achieve this is already available.