McLeod’s drain 64
10.3.1.5 Discharge to Waiwhakaiho River from Rifle Range
Road and Struthers Place 64
10.3.1.6 Discharge to Waiwhakaiho River from Vickers Road 65
10.3.1.7 Discharge to Mangaone Stream from mid Katere Road 66
10.3.1.8 Discharge to Mangaone Stream from Hurlstone Drive 67
10.3.2 Bewley Road industrial development 67
10.3.3 Groundwater monitoring 67
10.3.4 Surface water monitoring 70
10.3.5 Investigations, interventions, and incidents 72
10.4 Discussion 72
10.4.1
discharge permits 72
11.3. Results 72
11.3.1. Inspections 72
11.3.2. Chemical analysis 72
11.3.2.1. Results of discharge monitoring 72
11.3.2.2. Results of receiving environment monitoring 73
11.4. Investigations, interventions, and incidents 74
11.5. Discussion 74
11.5.1. Discussion of site performance 74
11.5.2. Environmental effects of exercise of consent 74
11.5.3. Evaluation of performance 75
11.5.4. Recommendation from the 2015-2016 Annual Report 77
Parameter Unit 9 Feb 2018 27 June
2018
All Data (given where N >5)
Min Max Median
Alkalinity Total g/m³ CaCO3 1020 580 130 1310 926
Ammoniacal nitrogen g/m³ N 129 52 0.308 176 117
Un-ionised ammonia g/m³ 0.416 0.36 0.00022 1.26 0.213
Chloride g/m³ 313 110 41 1,100 262
Chromium Dissolved g/m³ <0.03 0.0006 <0.03 <0.03 <0.03
Conductivity @ 20°C mS/m@20°C 267 145.9 44 319 228
Dissolved reactive phosphorus g/m³ P 0.009 0.002 <0.003 0.030 0.004
Filtered COD g/m³ 140 72
Dow AgroSciences consent monitoring Annual report 2016-2017
days ................................................................................................... 60
3.2.3 Extreme, rare rainfall events ................................................................... 68
3.3 Drought ................................................................................................................... 72
3.3.1 Potential evapotranspiration deficit ....................................................... 72
3.4 Other climate variables
pressure (bar)
Consent limit
5312-2 and 2.1 - 1,000 41.6 85 -
2021-2022 1,297 46 23.0 76 61
2020-2021 13,586 48 27.3 77 73
2019-2020 11,876 65 39.9 70 40
2018-2019 11,818 70 40.0 68 45
2017-2018 9,310 71 35.5 85 71
2016-2017 2,000 77 26.0 85 64
2015-2016 9,919 92 36.8 70 59
Consent limit
5312-1 - - - - -
2014-2015 13,403 58 18.3 119** 74
2013-2014 15,299 69 18.0 93** 72
Note ** Maximum injection pressures were recorded during reporting periods prior to
Civil Quarries Ltd Everett Road Quarry Annual Report 2021/22
Greymouth Petroleum deep well injection consent monitoring report 2017-2018
Greymouth Petroleum deep-well injection consent monitoring report 2016-2017
Saturation
(%)
12 August 2014 0.92 0830 10.0 7.7 70
11 December 2014 0.81 0730 18.4 6.6 72
18 May 2015 2.46 0730 13.5 7.2 69
Aerobic conditions were recorded on all inspection occasions (Table 1), despite the
lack of wave action on the surface of the main pond at all times and the low pond
levels (on two of three occasions) maintained to provide adequate flow buffering
capacity since the effluent discharge was diverted away from the stream. The
dissolved oxygen saturation levels