rainfall or freshwater.
The guideline MfE ‘Action’ mode is reached when enterococci counts in two consecutive
samples exceed 280 enterococci cfu/100 ml. No site reached Action mode during the 2014-
2015 season and no individual sample exceeded 280 enterococci cfu/100 ml.
Mann-Kendall tests were performed in order to assess long term trends in microbiological
water quality. Two sites show a significant decrease in median enterococci counts over the 13-
20 years monitored (Fitzroy and
to the inspection, totaling 8.2 mm between midnight
and 0900, based on the Council’s rainfall data from Brookland’s Zoo. There had been intermittent rainfall in
the seven days leading up to the survey. With respect to the consent limits, there were two non-compliant
results. Total suspended solids (TSS) was 190 g/m3 in the sample collected from STW001135, which
discharges stormwater from the CT log yard/debarking area, container wash and railway. TSS was 830 g/m3
Site code Sample type
Waitaha Catchment Annual Report 2022-2023
leachate and contaminated stormwater from three main processing areas. These are the drilling
wastes pad (pad 3) and two composting pads (known as ‘pad 1’ and ‘pad 2’).
Drilling muds, fluids and cuttings are mixed with sawdust or other organic material and then piled up on the
drilling wastes pad. Any rainfall runoff and leachate that is generated, drains into a series of ponds for
treatment. Between each pond is a baffle that skims off any floating hydrocarbons as the leachate passes
through.
previous two years for comparison 41
Figure 32 Estimated monthly mass of nitrogen irrigated 42
Figure 33 Monthly rainfall totals and median soil moistures 42
page
vii
Figure 34 Estimated monthly mass of phosphorus irrigated 42
Figure 35 Paddock numbering, Farm 1 46
Figure 36 Paddock numbering, Farms 2 and 3 47
Figure 37 Total nitrogen concentration of soil samples taken from the Company’s irrigation areas, June
2021 49
Figure 38 Olsen phosphorus of soil
https://maps.trc.govt.nz/LocalMapsViewer/?map=6f0f4492c76244d5ace0422efa7e6b0c%20&MapExtentID=14 https://maps.trc.govt.nz/LocalMapsViewer/?map=6f0f4492c76244d5ace0422efa7e6b0c%20&MapExtentID=14
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194
CO AS TAL P L AN F O R TARANAK I S chedu le 6 – H i s t o r i c he r i t age
has become a challenge, many are still caught in the months of June, July and August by Taranaki Iwi
families.
Relatively high rainfall up on the mountain quickly drains through these river systems, contributing to high
water flows and the swift clearance of excessive
Whilst the
average daily discharge limit was exceeded on two consecutive days under high rainfall conditions, the
Company identified and eliminated stormwater discharges to the system in a timely fashion. Additional
operational changes were made to minimise daily discharge volumes. The wastewater treatment system at
the Retreat did not adversely affect the water quality of the local freshwater and coastal environments. The
results of this sampling suggested that the Retreat was not influencing
STDC Kaponga, Manaia, Patea and Waverley WWTPs Monitoring Programme 2021-2022
Methanex resource consent monitoring report 2019-2020
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 …