Todd Energy Limited Deep Well Injection Annual Report 2023-2024
Todd Energy Limited Deep Well Injection Annual Report 2023-2024
Todd Energy Limited Deep Well Injection Annual Report 2023-2024
5494-2 67 Table 43 Summary of performance for Abraham Consent 7147-2 69 Table 44 Mangati Stream sampling sites 71 Table 45 Sampling sites in associated tributaries of the Mangati Stream 71 Table 46 Mangati Stream wet weather sampling results, 17 November 2023 72 Table 47 Mangati Stream dry weather sampling results, 22 March 2024 72 page vi Table 48 Mangati Stream wet weather sampling results, 14 June 2024 73 Table 49 Dissolved copper concentrations (in
surveys 59 4.2.10.3 Cyanobacteria 60 Timaru Stream at Weld Road (near mouth) 61 4.2.11 4.2.11.1 Comparison with guidelines 63 4.2.11.2 Comparison with previous summers’ surveys 63 4.2.11.3 Benthic cyanobacteria 64 Waimoku Stream at Oakura beach 65 4.2.12 4.2.12.2 Compliance with guidelines 67 4.2.12.3 Comparison with previous summers’ surveys 68 Oakura River below SH45 69 4.2.13 4.2.13.1 Comparison with guidelines 71 4.2.13.2 Comparison with previous summers’ surveys 72 4.2.13.3
Considerations of Stream Size in Determining Minimum Flows and Water Allocation Limits in Taranaki rivers
surveys 63 4.2.10.3 Cyanobacteria 64 Timaru Stream at Weld Road (near mouth) 65 4.2.11 4.2.11.1 Comparison with guidelines 67 4.2.11.2 Comparison with previous summers’ surveys 67 4.2.11.3 Benthic cyanobacteria 69 Waimoku Stream at Oakura beach 69 4.2.12 Oakura River below SH45 70 4.2.13 4.2.13.1 Comparison with guidelines 72 4.2.13.2 Comparison with previous summers’ surveys 72 4.2.13.3 Benthic cyanobacteria 73 Waitara River at the town wharf, Waitara 74 4.2.14 4.2.14.1
Comparison with previous summers’ surveys 68 3.2.15 Lake Ratapiko 69 3.2.15.1 Compliance with guidelines 70 3.2.15.2 Comparison with previous summers’ surveys 71 3.2.15.3 Cyanobacteria 71 3.2.16 Lake Rotokare 72 3.2.16.1 Cyanobacteria 73 4. General data summary 75 4.1 Comparison with thirteen previous summers’ surveys 78 4.2 General 79 5. Recommendations 81 Bibliography and References 82 Appendix I MAC assessments for all sites 85 Appendix II High tide times 95
previous summers’ surveys 71 4.2.11.3 Benthic cyanobacteria 72 Waimoku Stream at Oakura beach 72 4.2.12 Oakura River below SH45 73 4.2.13 4.2.13.1 Comparison with guidelines 75 4.2.13.2 Comparison with previous summers’ surveys 76 4.2.13.3 Benthic cyanobacteria 77 Waitara River at the town wharf, Waitara 78 4.2.14 4.2.14.1 Comparison with guidelines 81 4.2.14.2 Comparison with previous summers’ surveys 82 Urenui River at the estuary 83 4.2.15 4.2.15.1 Comparison with guidelines
performance for uncontaminated stormwater Consent 4620-1 68 Table 28 Summary of performance for discharge to land Consent 4621-1.1 69 Table 29 Summary of performance for composting air Consent 4622-1 70 Table 30 Summary of performance for air discharge Consent 4779-1.1 71 Table 31 Summary of performance for earthworks stormwater Consent 6177-2.0 72 Table 32 Summary of performance for earthworks stormwater Consent 10804-1.0 73 Table 33 Summary of performance for earthworks
trend analysis 68 page iii 4.11.4 Cyanobacteria 68 4.12 Waimoku Stream at Oakura Beach 68 4.12.1 Comparison with guidelines 70 4.12.2 Comparison with previous summer surveys 71 4.12.3 Long-term trend analysis 72 4.13 Oakura River below SH45 72 4.13.2 Comparison with previous summer surveys 74 4.13.3 Long-term trend analysis 75 4.13.4 Cyanobacteria 76 4.14 Waitara River at the town wharf, Waitara 77 4.14.1 Comparison with guidelines 79
Timaru Stream at Weld Road 74 Table 68 Statistical results summary for the Timaru Stream at Weld Road 75 Table 69 Bacterial guidelines performance at the Timaru Stream, Weld Road site [% of 13 samples] 77 Table 70 Summary of E. coli bacteriological water quality data to date (cfu/100ml) for all summer surveys in the Timaru Stream at lower Weld Road 78 Table 71 Analytical results for the Waimoku Stream at Oakura beach 80 Table 72 Statistical results summary for the Waimoku Stream