investigations, and interventions 67
15.4 Evaluation of performance 67
16 Mangati Stream 69
16.1 Water quality monitoring 69
16.2 Biological monitoring 74
16.2.1 Fish survey 74
16.2.2 Macroinvertebrate surveys 76
16.2.2.1 January 2023 survey 78
16.2.2.2 March 2023 survey 79
17 Discussion 81
17.1 Discussion of site performance 81
17.2 Environmental effects of exercise of consents 81
17.3 Evaluation of performance 82
17.4 Recommendations from the 2021-2022 Annual Report 82
17.5
136
62 Patea Beach and River Mouth 138
63 Waitore Swamp 140
64 Whenuakura Estuary 142
65 North and South Traps 144
66 Waipipi Dunelands 146
67 Waverley Beach 148
68 Waitotara Estuary and Dunes 150
69 Waiinu Beach and Reef 152
page
15
page
16
Mokau-Mohakatino (Epiha Reef)
Number: 1 GPS: 2649936E
6274891N
General description
Epiha reef is a large intertidal reef system between Mokau and Mohakatino Rivers, just north
of the Waihi Stream. It is the most extensive
136
62 Patea Beach and River Mouth 138
63 Waitore Swamp 140
64 Whenuakura Estuary 142
65 North and South Traps 144
66 Waipipi Dunelands 146
67 Waverley Beach 148
68 Waitotara Estuary and Dunes 150
69 Waiinu Beach and Reef 152
page
15
page
16
Mokau-Mohakatino (Epiha Reef)
Number: 1 GPS: 2649936E
6274891N
General description
Epiha reef is a large intertidal reef system between Mokau and Mohakatino Rivers, just north
of the Waihi Stream. It is the most extensive
regulations 26 and 65 associated with sediment management
c) regulations 28 and 55 addressing accelerated erosion, stream obstruction, or diversion of water flow
d) regulations 31, 56, and 67 addressing sediment and stormwater controls
e) regulations 36-46 for river crossings (fish passage, effects on other structures, erosion and sediment control
and discharges)
f) regulations 32 and 55 regarding site stabilisation
g) regulation 58 regarding quarrying
h) regulation 68 regarding
and 15B may not be undertaken within the
coastal marine area unless expressly allowed by a national environmental standard, a rule
in a regional plan, or a resource consent. The national environmental standard, plan or
resource consent may prescribe the noise standards for those activities (section 16).
2.1.2 National policy statements and environmental standards
Section 67 of the RMA specifies that regional plans must give effect to:
(a) any national policy statement,
(Section 2.1), the
Company also provided results of their own analysis of KW-2 injectate samples. The
results of the analyses are presented below in Table 8.
Table 8 Range of contaminants in KW-2 injectate samples (2012-2013)
Parameter Unit Number of samples Maximum value Minimum value Mean value
pH pH units 36 7.5 6.7 7.0
Salinity g/m3 36 25,800 9,100 19,806
Chloride ppm 36 11,125 5,652 9,711
Total suspended solids g/m3 36 67 24 43
Total dissolved solids g/m3 34 33,560
3.4 Recommendations from the 2013-2014 Annual Report 67
3.5 Alterations to monitoring programmes for 2015-2016 67
4. Recommendation 68
Glossary of common terms and abbreviations 69
Bibliography and references 71
Appendix I Resource consents held by NPDC for Colson Road landfill
Appendix II Biomonitoring reports for Colson Road landfill
Appendix III Groundwater Results
page
iii
List of tables
Table 1 Summary of the resource consents held by NPDC 6
2.4.3.1 Inaha Stream 26
2.4.3.2 Northern tributary 34
2.4.3.3 Western tributary 35
2.4.4 Irrigation area loading and groundwater monitoring 39
2.4.4.1 Irrigation area and system 39
2.4.4.2 Groundwater monitoring of the irrigation areas 41
2.4.5 Solid waste burial 52
2.4.6 Biomonitoring 55
2.4.6.1 Results of the first biomonitoring survey 17 November 2020 58
2.4.6.2 Results of the second biomonitoring survey 23 February 2021 61
2.5 Air 67
2.5.1 Inspections 67
regulations 26 and 65 associated with sediment management
c) regulations 28 and 55 addressing accelerated erosion, stream obstruction, or diversion of water flow
d) regulations 31, 56, and 67 addressing sediment and stormwater controls
e) regulations 36-46 for river crossings (fish passage, effects on other structures, erosion and sediment control
and discharges)
f) regulations 32 and 55 regarding site stabilisation
g) regulation 58 regarding quarrying
h) regulation 68 regarding