Remediation (NZ) Limited Uruti AEE Resource Consent Application – Revision 9 1 Uruti Composting & Vermiculture Facility Assessment of Environmental Effects For the discharge of organic material and associated leachate and stormwater to land/water/air in conjunction with the Composting and Vermiculture product processes Colin Kay BAgrSc, QSA Kay Consulting Ltd November 2017 Prepared By General manager -Operations Revision 8: 27 July 2018 David Gibson AFNZIM, MBA Remediation (NZ) Ltd Revision 9: 31 August 2018 Reviewed By Kerry O’Neill Managing Director Additional information pages 32 to 35 Remediation (NZ) Ltd Reissued: 31 August 2018 Remediation (NZ) Limited Uruti AEE Resource Consent Application – Revision 9 2 Table of Contents Contents • 1 ...................................................................................................................................... INTRODUCTION .................................................................................................................................................... 5 1.1 BACKGROUND ............................................................................................................................................ 5 1.2 CONSENTS SOUGHT ..................................................................................................................................... 5 1.3 CHANGES TO CONSENT CONDITIONS SOUGHT .................................................................................................. 6 Table: 1 Changes to consent ........................................................................................................................ 6 1.4 REPORT SCOPE ........................................................................................................................................... 7 • 2 .................................................................................................................................. SITE DESCRIPTION .................................................................................................................................................... 7 2.1 GENERAL ................................................................................................................................................... 7 2.2 LOCATION .................................................................................................................................................. 8 2.3 CLIMATE .................................................................................................................................................... 8 Table 2: Kaka Road Rainfall Events 2011-17 ............................................................................................. 10 Table 3: High Intensity rainfall data (NIWA) for site ................................................................................ 10 2.4 HYDROLOGY / HYDROGEOLOGY ................................................................................................................... 12 2.5 GROUNDWATER QUALITY ........................................................................................................................... 13 2.6 SOIL QUALITY ........................................................................................................................................... 13 2.7 SURFACE WATER QUALITY .......................................................................................................................... 14 2.8 AIR QUALITY ............................................................................................................................................ 14 • 3 ......................................................................... DESCRIPTION OF PROPOSED OPERATION/ACTIVITIES .................................................................................................................................................. 15 Figure 4: Process Diagram of the Uruti Composting and Vermiculture Facility ........................................ 16 3.1 PAD CONSTRUCTION .................................................................................................................................. 17 3.2 ORGANIC MATERIAL INPUTS AND CAPACITY ................................................................................................... 18 3.3 DISCHARGES TO LAND - COMPOSTING PROCEDURES ...................................................................................... 19 Table 5: Typical annual drilling mud received ........................................................................................... 21 3.4 DISCHARGES OF TREATED STORMWATER AND LEACHATE ................................................................................. 22 3.4.1 Stormwater Volume ................................................................................................................... 23 Table 6: Stormwater Peak Flow Calculation .............................................................................................. 24 Table 7: Stormwater discharge characteristics Pad 1 & Pad 3................................................................ 25 Table 8: Stormwater discharge characteristics of the Paunch Pad (2 ....................................................... 26 3.5 DISCHARGES TO AIR .................................................................................................................................. 26 • 4 ........................................................................................ ASSESSMENT OF ENVIRONMENTAL EFFECTS .................................................................................................................................................. 27 4.1 STORMWATER AND LEACHATE DISCHARGES ................................................................................................... 27 4.1.1 Sensitivity of Receiving Environment ......................................................................................... 27 4.1.2 Effects on Surface Water Quality ............................................................................................... 28 Table 9: Uruti Irrigation Model .................................................................................................................. 29 4.1.3 Effects on instream flora and fauna .......................................................................................... 31 4.1.4 Effects on Groundwater Quality ................................................................................................ 31 Remediation (NZ) Limited Uruti AEE Resource Consent Application – Revision 9 3 4.1.5 Effects on Soil Quality ................................................................................................................ 34 4.1.6 Wetland Discharge .................................................................................................................... 35 4.1.7 Proposed mitigation measures – discharges ............................................................................. 36 4.2 DISCHARGES TO AIR ................................................................................................................................... 38 4.3 VERMIN / DISEASE .................................................................................................................................... 39 4.4 FERAL ANIMALS ........................................................................................................................................ 40 4.5 EFFECTS ON TANGATA WHENUA .................................................................................................................. 40 4.6 INTEGRATED MANAGEMENT SYSTEM ........................................................................................................... 40 4.7 ALTERNATIVE LOCATION AND METHODS ....................................................................................................... 41 4.8 OPTIONS ASSESSMENT ............................................................................................................................... 41 4.9 SUMMARY OF EFFECTS ............................................................................................................................... 42 • 5 ............................................................................................................ RELEVANT RULES AND POLICIES .................................................................................................................................................. 43 5.1 PART ΙΙ (P URPOSE & PRINCIPLES ) – RESOURCE MANAGEMENT ACT 1991 ......................................................... 43 5.2 SECTIONS 104 – MATTERS TO BE CONSIDERED .............................................................................................. 44 5.3 OBJECTIVES AND POLICIES OF THE REGIONAL POLICY STATEMENT ...................................................................... 45 5.4 WASTE MANAGEMENT AND MINIMISATION STRATEGY TARANAKI .................................................................... 46 5.5 SECTION 105 – RESOURCE MANAGEMENT ACT ............................................................................................. 48 5.6 OBJECTIVES & POLICIES OF THE TRC REGIONAL FRESH WATER PLAN ................................................................. 49 5.7 REGIONAL AIR QUALITY PLAN FOR TARANAKI ................................................................................................ 51 • 6 .....................................................................................................................................