Executive Audit and Risk Agenda September 2023 Web
Executive Audit and Risk Agenda September 2023 Web
Executive Audit and Risk Agenda September 2023 Web
performance Besides discussing the various details of the performance and extent of compliance by the Company, this report also assigns them a rating for their environmental and administrative performance during the period under review. Environmental performance is concerned with actual or likely effects on the receiving environment from the activities during the monitoring year. Administrative performance is concerned with the Contact Energy’s approach to demonstrating consent compliance
effluent from the Stratford Wastewater Treatment Plant into the Patea River. A 20 year timeframe provides the required certainty to enable the upgrades to be investigated and undertaken over time. The proposed plant upgrades are aimed at improving the effluent quality while remaining cost effective for the rate payers. There is no requirement for upgrading the plant capacity. The timeframe of the upgrade stages are based on economic considerations. The upgrades proposed are: •
are all rated as nationally significant assets.5 Electricity There are two levels of connectivity for the Taranaki electricity network: The high voltage national electrical transmission system that covers both North and South Islands. This system connects generation sources to local substations and is operated by Transpower. The Taranaki region connects at Stratford to the National Grid through 220 kV circuits that run north to Huntly and south-east to
Ecosystem health is variable throughout the Southern Hill Country FMU. Nitrogen levels are generally low, but elevated in-stream concentrations of dissolved reactive phosphorous are found in the majority of rivers, along with high rates of sedimentation, which impact aquatic ecosystems. Periphyton is monitored at one site, with occasional blooms occurring, although there is limited data to provide a comprehensive picture of algal growth across this FMU. Macroinvertebrate community
determined using the p value (p < 0.05 = significant). When multiple correlations are undertaken, there is a chance that some will be found to be significant purely by chance. In order to deal with this potential problem, the Benjamini-Hochberg False Discovery Rate (FDR) method was applied to the results of the Man-Kendall test. Further justification for this statistical approach can be found in Stark and Fowles (2006). Photo 1 Bacteriological sampling page 8
performance for Consent 5692-1 to disturb the bed of the Waiaua River by removing sediment build-up upstream of a weir 31 List of figures Figure 1 Generation figures from the Opunake HEP scheme from 1 July 2010 1 July to 2014 16 Figure 2 Typical generation pattern over three separate periods during the 2010- 2014 period 16 Figure 3 Water levels in Opunake Lake, 2010-2014 period. 17 Figure 4 Lake levels, Punehu Stream flow and generation rate between 18 October 2011 and 20 …
irrigation blocks is restricted to the limits outlined in the Standard Work Place Instruction SWPI Irrigation from the Catchment Pond Leachate & Stormwater Management Plan SWPI Irrigation from the Irrigation Catchment Pond The application rate of effluent applied to the irrigation blocks is restricted to the limits outlined in the Standard Work Place Instruction SWPI Irrigation from the Catchment Pond Leachate & Stormwater Management Plan SWPI Irrigation from the Irrigation
Executive Audit and Risk Agenda September 2023 v2