Abstraction rate for the 2018-2019 period, with flow rates from 1 July 2018 to 19 January 2019,
from the Kahouri Stream (compliance limit red dashed line) 11
Figure 5 The irrigation areas, showing the cut and carry paddocks (green) and regular paddocks (blue)
(please note that the boundary lines are indicative only and may be subject to change) 12
page
iii
Figure 6 The volume of wastewater irrigated to land and discharged to water, compared with the
monthly rainfall totals 15
‘Alert’ level for coastal waters (>140 cfu/100 ml). The 2014 E. coli counts for freshwater
Sites 1 and 2 were above the MfE ‘Alert’ level for freshwater (>260 cfu/100 ml).
The most likely explanation for the elevated counts is related to the high rainfall which
occurred prior to sampling. Under these circumstances, the sites can be influenced by
the Urenui River which drains from developed agricultural land. High counts recorded
at Site 1a, located upstream from the camp sewage
page
25
Discussion 4.
The chemical composition of groundwater is determined by a number of influences.
These include the mineralogy of the soil and rock types forming catchments or
aquifers, aquifer structure, the source and volumes of recharge water, aquifer
residence times, overlying landuses and biochemical process.
Groundwater aquifers in Taranaki are predominantly recharged by rainfall falling on
the land surface, but recharge can also occur via infiltration from
Waitaha catchment consent monitoring report - Taranaki Regional Council.
inspection and 27 mm of rainfall had been recorded over the previous week at the
Brooklands Zoo weather station. Pond SV8000 contained 900 m3 of stormwater, while SV9000 was full at
275 m3 and had overtopped into SV9100. The ponds had a clear appearance with some wind-blown pollen
with no sheen or odours noted. The incinerator was still offline, but was expected to be recommissioned in
October. Site housekeeping was excellent. All roadways and stormwater catchments were clean.
5 November 2020 …
BTW Facility
Management Plan-
Appendix 6.
. Event recorded on weekly diary including
o Date and time
o Rainfall volume (from weather station)
o What happened
o What caused it
o What was done to rectify the problem
o What has been done to stop it happening again
o Who at TRC was notified
The Taranaki Regional Council will be requested to include Remediation (NZ) Ltd on
their "heavy rainfall alert" list.
Further information on actions to take in the event of a spill are included
in
receiving waters in the Herekawe Stream.
Scheduled inspections were carried out on 27 September and 4 December 2019, and 25 February and 5
June 2020.
Notes from these visits are summarised below. Records of production and incinerator operation were
inspected and found to be satisfactory.
27 September 2019
The weather was fine with strong westerly winds. Rainfall of 36 mm had been recorded over the previous
week at the Brooklands Zoo monitoring station. Stormwater pond SV8000 contained …
in April
2023 indicate that the scheme had had little to no effect on the communities prior to this latest sampling
event. This could be attributed to the frequent rainfall during summer, as these flow conditions reduce the
influence of the HEP scheme activities. This is evident in the significant improvements in the
macroinvertebrate community health at the impact sites, while the control site was in average to above
average health. Consequently, based on the current (and previous) survey
the presence of degradable organic
matter, taking into account the biological conversion of ammonia to nitrate
CCAB Copper chromium arsenate and boron (wood treatment chemicals)
Conductivity Conductivity, an indication of the level of dissolved salts in a sample, usually
measured at 25°C and expressed in mS/m
Cr Chromium
Cu* Copper
Fresh Elevated flow in a stream, such as after heavy rainfall
g/m3 Grams per cubic metre, and equivalent to milligrams per litre (mg/L). In