logging of
boreholes on site indicated a relatively shallow water table. Test bores were augured to 10m both around
the waste holding pit area and to the south-western site boundary, revealing alternating layers of sand and
clays. Bore construction also revealed localised peat layers within some augured cores (approximately 4–8m
below surface). Average annual rainfall for the site is 1,186mm (long term average to 2023 taken from the
nearby Pātea at Bore 3 monitoring station).
Origin Energy
that can be diverted, while conditions 2 and 3 clarify how this allocation
of water does or does not affect the current and future allocation of water upstream of the dam.
Conditions 4 to 8 define the minimum flow that is to be maintained in the Patea River downstream of the
dam, and allows for a lower minimum flow when less than normal rainfall reduces inflows.
Conditions 9 to 11 define the minimum and maximum allowable lake levels for winter and summer periods
and allows for some
define the minimum flow that is to be maintained in the Patea River downstream of the
dam, and allows for a lower minimum flow when less than normal rainfall reduces inflows.
Conditions 9 to 11 define the minimum and maximum allowable lake levels for winter and summer periods
and allows for some flexibility in lake levels to allow for a short term electricity shortage. When such a
shortage occurs, the consent holder is required to notify Council, and provide an explanation.
Condition 12
downstream of the dam, and allows for a lower minimum flow when less than normal
rainfall reduces inflows.
Conditions 9 to 12 define the minimum and maximum allowable lake levels for winter
and summer periods, specify the required spillway gate settings during a high lake
level, and allows for some flexibility in lake levels to allow for a short term electricity
shortage. When such a shortage occurs, the consent holder is required to notify
Council, and provide an explanation.
Condition 13
hydrogen peroxide
solution, EDTA (ethylenediamine tetraacetic acid), and District Council water supply.
Photo 1 Factory operating in 2012
Table 1 indicates the types and quantities of process chemicals that are discharged
when the factory is operating. These absolute quantities vary from week-to-week
depending on the level of production. The concentration in the effluent also varies
page
5
depending on the current level of rainfall runoff. There are also minute
NPDC wastewater treatment plant consent monitoring report - Taranaki Regional Council.
due to a heavy
rainfall prior to the inspection. No odour, foam or sheen was noted. The Mangatete weir appeared to be in
sound order as it had recently been repaired. The stream flowed freely over the structure. The flow was
moderate in height. A good level of residual flow was maintained over the fish pass. A small rock partially
blocked the structure. This should be removed if practicable as it may act as an obstruction which initiates
the accumulation of material at the fish pass. The rate
improvements. Rainfall in Taranaki does expedite run-off of E. coli and other contaminants
into waterways however, an assessment of earlier ‘dry-weather’ swim spot monitoring data
found that 11 out of 16 sites were still failing the minimum standard, indicating direct
contamination of waterways is a significant issue.
Ordinary Council - Update on changes to NPSFM and policy development programme
256
page
b. Sediment – eight of the 22 (36%) monitoring sites fall below the
Council, thought he’d snagged something with his oar one day. He had - when he
hoisted the blade out it was entangled in a sheep’s guts.1
The river flushed such detritus away into the sea, but sometimes too vigorously.
As farmers cleared bush and drained swamps, the land lost its ability to absorb
deluging rainfall and the Waitara developed a habit of flooding rapidly and massively,
endangering the township in 1965, 1967, 1971 and 1990.
The river belches a dirty plume into the Tasman Sea, and
opportunities and strategies for regional
councils, to enhance knowledge base for policy development
and implementation. Projects with clear relevance and benefit
to Taranaki to be adopted by "Envirolink" and other funding
opportunities (advocacy to be reported through Council's
annual report processes).
Envirolink projects are underway: a revised national High Intensity
Rainfall Design System, and development of Discrete Water
Quality Sampling Standards, farm scale