flowmeters and flow data provision. The
Company plans to make further upgrades to the stormwater system with the goal of further improving
discharge quality. Water take and discharge rates are now being telemetered to the Council, but a review of
the placement of the flowmeters is still required. The groundwater monitoring bores have been installed
and monitoring will begin in the forthcoming year.
For reference, in the 2020-2021 year, consent holders were found to achieve a high level of
flowmeters and flow data provision. The
Company plans to make further upgrades to the stormwater system with the goal of further improving
discharge quality. Water take and discharge rates are now being telemetered to the Council, but a review of
the placement of the flowmeters is still required. The groundwater monitoring bores have been installed
and monitoring will begin in the forthcoming year.
For reference, in the 2020-2021 year, consent holders were found to achieve a high level of
flowmeters and flow data provision. The
Company plans to make further upgrades to the stormwater system with the goal of further improving
discharge quality. Water take and discharge rates are now being telemetered to the Council, but a review of
the placement of the flowmeters is still required. The groundwater monitoring bores have been installed
and monitoring will begin in the forthcoming year.
For reference, in the 2020-2021 year, consent holders were found to achieve a high level of
keeping 11
2.3.2.1 Rate and time of effluent application 11
2.3.2.2 Area (ha) that effluent is applied and total volume applied 11
2.3.2.3 Method of irrigation 12
2.3.2.4 Type of crops grown 12
2.3.3 Cut and carry operation 12
2.3.4 Total nitrogen and potassium in the effluent 13
2.3.5 Nutrient management 13
2.3.6 Nitrogen loading 13
2.3.7 Potassium loading 14
2.3.8 Cut and carry operation 14
2.4 Incidents, investigations, and interventions 15
page
physico-chemical analysis. A hydrometric station is
maintained on the stream for the continuous measurement of flow rate and temperature.
During the monitoring period, Silver Fern Farms Ltd demonstrated a high level of environmental
performance and good level of administrative performance.
Silver Fern Farms Ltd holds six resource consents, to allow it to maintain a dam and to take water from the
Tawhiti Stream; to discharge to the stream and to land; and to discharge emissions into the air.
A
levels. This had been addressed through extension of the irrigation disposal
system in 2007-2008, and by more intensive wastewater and groundwater monitoring. During the year
under review, there was a higher nitrogen load applied to the paddocks than in the 2017-2020 years. The
nitrogen application rates increased by about 14% on Farm 1 and 20% on Farms 2 and 3 in the 2019-2020
year, with further increases of 10% on Farm 1, 4% on Farm 2, and 18% on Farm 3 during the year under
review. On Farm 3,
applicable
The culvert will be open-bottomed or its invert will be placed so that at
least 25% of the culvert’s diameter is below the level of the bed.
☐ Yes ☐ No
The bed substrate will be present over the full length of the culvert and
stable at the flow rate at or below which the water flows for 80% of the
time.
☐ Yes ☐ No
The culvert provides for continuity of geomorphic processes (such as the
movement of sediment and debris).
☐ Yes
(3%) of consents monitored required improvement
in their performance, while the remaining one (< 1%) achieved a rating of poor.
In terms of overall environmental and compliance performance by the consent holders over the last several
years, this report shows that, with the exception of Port Taranaki, the performances of the port industries
have remained at a high level. Port Taranaki’s performance has improved compared to last monitoring year.
This report includes recommendations for the
representing the flow in the river
with the generation flow added back in
7. Waiwhakaiho at Rimu St – this is another long-term flow recording station operated by TRC;
while river levels have been recorded from October 1992, rated flows are only available
from April 2009. Represents flow in the lower river downstream of the scheme
8. Lake Mangamahoe – representing operation of the lake and level fluctuations.
Of the eight nodes for which hydrological information is presented in this report, five