of the stockpiling facilities.
The predominant soil type has been identified as gravelly sand and the vegetation cover is pasture, recently
converted from native bush. Average annual rainfall for the site is 1,942 mm (taken from the nearby
‘Stratford’ monitoring station).
No consents were initially held to discharge stormwater from this stockpiling site, as it was expected to
comply with the permitted activity criteria in Rule 23 of the Regional Freshwater Plan (RFWP). However, a
(if any) of the discharges being monitored.
One macroinvertebrate survey was carried out on 26 April 2018 at three surface water monitoring sites in
the Piakau Stream. A post-fracturing survey could not be undertaken as the necessary flow conditions were
not met within the required timeframe4.
4 A period of up to 10 days is required between rainfall events to meet the necessary flow conditions to enable a robust survey to
4 A period of up to 10 days is required between rainfall events to meet the necessary flow conditions to enable a robust survey to
be undertaken.
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9
2 Results
2.1 Consent holder submitted data
2.1.1 Kowhai-5 post-fracturing discharge report
The conclusions from the Kowhai-5 post-fracturing discharge report are summarised as follows:
• A total of three of the eight zones planned were fractured over the period 22 January 2019 to 11
March 2019 at depths
Port Area Industrial Catchments Hongihongi and Herekawe Compliance Monitoring Annual Report 2020 2021
in discrete areas, such as near river mouths
and in close proximity to wastewater discharges. At river mouths, water quality can be
reduced as a result of contaminants from land use and development (e.g. farming,
earthworks, urban centres, industrial sites) entering waterways, particularly during or
following heavy rainfall events. Accidental discharges of largely untreated wastewater can
have temporary adverse effects on coastal water quality. Wastewater discharges from
large population
NPDC New Plymouth wastewater treatment plant resource consent monitoring report 2019-2020
pH, suspended solids, hydrocarbons, and chloride complied with the limits prescribed by consents
5997-1 and 6269-1.
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11
2.1.3 Results of consent holder monitoring
2.1.3.1 Stormwater monitoring by OMV
OMV monitors the combined stormwater discharge from the site, with sampling triggered by rainfall events.
Table 4 shows the results obtained during the 2019-2020 monitoring year. In all samples pH, hydrocarbons,
suspended solids and chloride levels were all …
Taranaki Regional Council meeting agenda February 2021 - Part 2
Lower Waiwhakaiho industries consent monitoring report 2017-2018