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Annual report 2012-2013

expired on 1 June 2011, but remained in force while application for a new consent was being processed. There were eight conditions associated with this consent which set out how the consent shall be operated and managed. Condition 1 was a review provision. page 12 Condition 2 set out the terms of use of the consent during heavy rainfall only. Condition 3 set limits on the components of the discharge. Conditions 4 and 5 placed limits on the concentration of

Remediation hearing - applicant's evidence - RNZ's offered conditions

3; (c) the weight of each type material; and (d) the origin of the material. The information required by this condition shallmust be provided to the Chief page 3 Executive, Taranaki Regional Council, within 24 hours of the material arriving on site. Site operations 7. The site shallmust be constructed and maintained to ensure that, at all times up to a 10 year annual recurrence interval rainfall event: (a) stormwater runoff is prevented from

Greymouth Petroleum Ltd Northern Sites Annual Report 2022-2023

The following was found during the inspections: 6 July 2022 Turangi Production Station: The level in the skimmer pits were above the discharge pipe after heavy rainfall overnight. The valves had been shut to prevent discharge and to allow for sediment to settle out. The discharge point looked good with no adverse effects observed in the area or downstream. It was noted that a pump was located alongside the stream for the taking of water. A drip tray was located under the pump,

Stratford wastewater treatment plant monitoring report 2018-2019

cell of the secondary pond (using chlorophyll-a measurements) indicated that the system had a low algal content, particularly following heavy rainfall events. Microfloral populations have not indicated poor performance of the treatment system to date and generally indicate an improvement in conditions in the tertiary cell since the last WWTP upgrade. Screening of the outlet from the secondary oxidation pond was well maintained. The inlet system functioned as designed during the monitoring

Annual report 2016-2017

Zinc- acid soluble Zinc- dissolved page 16 In the previous May 2016 survey, suspended solids were very high (310 g/m3). The exact cause of this result could not be identified but was likely due to rainfall and/or activities in the headwaters of the stream. The results of the January 2017 and June 2017 surveys show very low suspended solids in comparison (Table 4). There was a slight decrease of zinc by 0.071 g/m3 between site upstream 2 and the downstream site (0.255

Annual report 2012-2013

The unnamed tributaries on this site are generally small, clear running low energy brooks with silty beds, however with increased rainfall the suspended solids level can rise quite quickly as silt is stirred up from the beds and edges of the streams and is entrained in the flow. Overall the level of suspended solids indicates good water quality in the stream system. Apart from a slight comparative spike in conductivity levels in the results for June 2008 in the downstream sites, the

Annual report 2016-2017

Trustpower Motukawa hydro consent monitoring Annual report 2016-2017