Meeting notes from 11 December 2014
These notes are based on a meeting held in Ngongotaha Hall, 11 December 2014. About 25 landowners from 13 properties within the additional groundwater area attended, plus other farmers, Bay of Plenty Regional Council staff and scientists from GNS (Geological and Nuclear Sciences) and NIWA. A basic agenda and invitation was pre-circulated with links to groundwater maps and a recent report by GNS.
The meeting took place because Bay of Plenty Regional Council (BOPRC) is developing new rules to reduce nitrogen loss to Lake Rotorua to protect water quality. The current “Rule 11” is limited to the surface runoff catchment within BOPRC’s jurisdiction. Most nitrogen is transported to the lake by groundwater and the groundwater catchment is partially outside of the surface water catchment boundary. Council intends that new nitrogen rules target the entire groundwater catchment. The new rules are scheduled to be notified in May 2015.
Landowners from the additional groundwater area were invited to meet with the scientists who helped define the groundwater boundary. Landowner contact details were obtained from Bay of Plenty Regional Council’s rating database and sent out by the Lake Rotorua Primary Producers Collective.
Presentations at the meeting were given by:
Landowner concerns and questions (as recorded at 11 December meeting)
Some catchment facts and figures
The catchment areas involved (excluding the lake surface area of 8068 ha) are:
|Lake Rotorua catchment description||Area, hectares|
|Groundwater (GNS 2014)||45,721|
|Surface runoff (total)||42,258|
|Surface runoff Rule 11 (within BOP region only)||40,758|
|Groundwater additional to surface||3,463|
|Groundwater additional to Rule 11||4,963|
|Groundwater additional to surface in BOP region||2,406|
|Surface runoff in Waikato region||1,500|
|Groundwater in Waikato region (includes surface)||2,557|
Nearly all of the additional 3,463 ha of groundwater catchment is near Mamaku area and is divided between BOPRC and Waikato RC jurisdictions. There are also two Waikato areas to the south-west and south-east of Rotorua which are surface and groundwater catchment. These areas are shown in the map below.