B-2 – Area 2 - Assessment of Environmental Effects 130 treatment prior to discharge into the Ohinemuri River. These features are designed to specifically contain and treat contaminants such that they will not present a significant risk to human health or the environment when discharged beyond these features.218 In additional to pumping of water from the collection ponds to the WTP as described above, the collection ponds have also been designed to discharge via spillway to the Mataura Stream during one in ten year, 24 hour rainfall events. During such events, effective dilution is available, therefore such direct discharges will not present a significant risk to human health or the environment.219 The containment and treatment of contaminants as described above ensures that no adverse effects will arise with respect to aquatic habitats and water quality that are inconsistent with the objectives in Section 3.1.2.220 Construction activities within Area 2 will be undertaken in accordance with an Air Quality Management Plan, as described in Section 5.5 of this AEE. Accordingly, no adverse effects are anticipated to arise that are inconsistent with the Air Quality objectives in Section 6.1.2; and 221 OGNZL continues to work with tangata whenua regarding cultural effects and how the project can best accommodate and provide for their relationship with identified taonga. This is considered further in Section 5 of the Overarching AEE. 222 With the above methods in place, it is considered that the outcomes sought by Objective 5.2.2 (and its associated policies) will be achieved. 7.6.1.11 Contaminated Land Objective 5.3.2 and associated policies223 seek management of discharges of contaminants from contaminated land so they: do not present significant risk to human health, flora or fauna due to the contamination of soil and ground or surface water;224 do not have adverse effects on water quality or aquatic ecosystems that are inconsistent with the water management objectives in Section 3.1.2;225 218 Objective 5.2.2(a) and Policy 2(a), Section 5.2, Waikato Regional Plan. 219 Objective 5.2.2(b) and Policy 2(a), Section 5.2, Waikato Regional Plan. 220 Objective 5.2.2(b) and Policy 2(c), Section 5.2, Waikato Regional Plan. 221 Objective 5.2.2(c) and Policy 2(d), Section 5.2, Waikato Regional Plan. 222 Objective 5.2.2(e) to (f) and Policy 2(e), Section 5.2, Waikato Regional Plan. 223 Policy 1 – 4, Section 5.3, Waikato Regional Plan. 224 Objective 5.3.2(a), Section 5.3, Waikato Regional Plan. 225 Objective 5.3.2(b), Section 5.3, Waikato Regional Plan.
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