and hence
some indication of the distribution of the results is recorded.
Table 6b: Summary of heavy metal concentrations (ppm) in the soil (0-250mm) at the Geary site.
Element No. samples Average Max. Min. Limit1
As 33 all < 22 <2 - 20
Cd 33 all < 0.12 <0.10 - 1
Cr 33 15 20 8 600
Cu 33 17 32 7 100
Pb 33 14 48 1 300
Ni 33 7 11 5 60
Zn 33 72 113 33 300
Hg 33 all < 0.12 <0.10 - 1
page
9
Note 1) from the Ministry for the Environment 2003
2) for some
13.4.2
Evaluation of performance 68 13.4.3
page
v
Recommendation from the 2013-2014 Annual Report 70 13.4.4
Alterations to the monitoring programme for 2015-2016 70 13.4.5
13.5 Recommendation 70
14. V Rowe Family Trust & CG Bayliss Family Trust Partnership - Manutahi Road,
Bell Block 71
14.1 Site description and activities 71
14.2 Results 72
Inspection 72 14.2.1
14.3 Investigations, interventions, and incidents 72
14.4 Discussion 72
Discussion of
Effluent monitoring 63
3.3.1.4 Inter-laboratory comparisons 67
3.3.1.5 Methanex Waitara Valley annual report 70
3.3.1.6 Uncontaminated stormwater 70
3.3.2 Air 71
3.3.2.1 Inspections 71
3.3.2.2 Consent requirements 71
3.4 Investigations, interventions, and incidents 71
3.5 Discussion 72
3.5.1 Discussion of plant performance 72
3.5.1.1 Environmental effects of exercise of water permits 72
3.5.1.2 Environmental effects of exercise of air discharge
permit 72
Ordinary Council Agenda October 2024
analysis 59
2.8 Kapoaiaia Stream 61
2.8.1 Flow data and survey dates 63
2.8.2 Periphyton cover 63
2.8.3 Periphyton Index Score 65
2.8.4 Summary of 2002-2012 (10 year data set) 66
2.8.5 Long term trend analysis 67
2.9 Waiongana River 71
2.9.1 Flow data and survey dates 72
2.9.2 Periphyton cover 72
2.9.3 Periphyton Index Score 74
2.9.4 Summary of 2002-2012 (10 year data set) 74
2.9.5 Long term trend analysis 76
2.10 Mangaehu River 79
2.10.1 Flow data and survey dates 80
2.10.2
monitoring inspection and to take
water samples. The weather was fine with 13 mm rain falling over previous 72 hours
and the stream system was in low flow. A truck was discharging drilling muds and a
digger was operating blending in sawdust at time of inspection. A discussion was
held with the digger driver and site manager on the drainage issues at the top of the
lower irrigation area and the installation of novaflo in a few swampy areas on the
main irrigation flats. Discussion included the
1 MWH000380
5 MWH000490
15
25
18
27
10-25 [16]
13-25 [19]
12-24 [16]
16-30 [24]
83
90
72
83
58-85 [73]
63-86 [77]
72-85 [76]
84-102 [90]
41
36
12
12
Waingongoro River
6 WGG000620
7 WGG000640
8 WGG000665
-
-
19
20
28
21
16-35 [27]
17-35 [26]
14-30 [21]
19-28 [24]
21-31 [27]
14-27
69
Appendix I High tide times 72
Appendix II MAC assessments 76
page
iii
List of tables
Table 1 Surveillance, Alert and Action levels for marine waters (2003) 2
Table 2 Microbiological Assessment Categories 3
Table 3 Suitability for recreation grade (SFRG) for coastal recreational areas
in the Taranaki region, November 2006 to April 2011 4
Table 4 Location of bathing water bacteriological sampling sites 2011-2012 6
Table 5 Coastal bathing
consent 1857-6.
Table 2 Results of combined discharge (STW001027) and receiving water (MGO000031) monitoring
for the 2013-2014 year
Date
Sampling
point
Temp
(oC)
pH
Conductivity
(mS/m)
Suspended
Solids
(g/m3)
Dissolved
Copper*
(g/m3)
Dissolved
Zinc*
(g/m3)
30.6.14
STW001027 13.6 7.1 6.9 72 0.023 0.393
MGO000031* 13.3 7.1 13.9 18 0.004 0.020
*USEPA acute criteria for dissolved metals: Cu 0.0088 g/m3 and Zn 0.064 g/m3 [at hardness of 50 g/m3