CaCO3 60 72 80 76 72 126 126 112 124 60 126
Carbonate g/m3 CO3 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Bicarbonate g/m3 HCO3 73 88 98 92 88 154 153 137 151 73 154
Total hardness g/m3 CaCO3 55 61 74 67 74 88 88 90 95 55 95
Electrical conductivity mS/m 18.7 20.4 21.1 21.7 19.8 30.6 33.7 28.6 30.7 18.7 33.7
Total suspended solids g/m3 3 4 40 <3 <3 8 4 <3 11 <3 40
Total dissolved solids g/m3 111 120 129 133 127 168 193 197 179 111 197
Dissolved aluminium g/m3 <0.003 <0.003 <0.003 …
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
Indeterminate 4/4 4/4 3 3
Skinner Road 19.2 Moderate Indeterminate Indeterminate 4/4 2/4+ 142 621n
Punehu
Wiremu Road 4.4 Very good Increasing* Indeterminate 4/4 4/4 3 2
SH45 20.9 Good Indeterminate Indeterminate 4/4 4/4 13 16
Waingongoro
Opunake Road 7.2 Very good Decreasing* Indeterminate 4/4 4/4 44 64
Stuart Road 29.6 Very good Indeterminate Indeterminate 4/4 4/4 75 92
Ohawe Beach 66.6 Good Increasing* Indeterminate 4/4 4/4 55 67
Waiongana
SH3a 16.1 Good Indeterminate …
Lower Waiwhakaiho air discharges consent monitoring report 2018-2019
Contact Energy Stratford Power Station Annual Report 2022-2023
Patea at Bore 3 21 147.2 131 1061.6 144 93 2005
Waitotara at Hawken Rd 16 98.6 110 989.4 147 96 2016
Ahuahu at Te Tuhi
Junction 19 98.5 67 1165.5 138 86 2018
Whanganui at Mataimona
Trig 21 167.5 91 1335.5 131 80 2018
Whangamomona at
Marco Road 20 308.8 152 1491.9 121 80 2018
Whangamomona at
Bridge to Somewhere 18 244.9 144 1293.5 121 78 2018
Whanganui at Pipiriki 17 141.0 98 983.0 120 76 2018
Ohura at Waitewhena
Airstrip 16 224.4 110 1492.5 128 80 2019
Ohura at
Prohibited
Restricted
Discretionary
Restricted
Discretionary
Permitted
Prohibited
Permitted
Permitted
Controlled
Permitted
Permitted
Permitted
Permitted
67
67
68
68
69
70
70
70
71
71
71
72
DISCHARGES FROM LAND:
SITE DEVELOPMENT,
EARTHWORKS OR THE
APPLICATION OF SOIL
CONDITIONERS
Discharges from site development
Rule 42 Site development and landscaping